A graded recycling device for resin-based composite materials

Abstract

This invention discloses a graded recycling device for resin-based composite materials, belonging to the field of recycling devices. It includes a clamping roller located inside a housing assembly. The clamping roller has several pressure holes on its outer side, and a crushing probe is inserted into the inner wall of each pressure hole. A punching hole is formed on the side of each crushing probe. By using the punching holes, the resin-based composite material is crushed by the crushing probe, and the high-pressure airflow ejected from the punching holes separates the resin from the fibers, thereby improving the device's separation efficiency and purity. Simultaneously, a displacement actuating plate, driven by a connecting arm, rotates a follower plate, causing a piston plate in a sliding groove to move up and down, repeatedly stretching the fibers and separating them from the resin. The airflow ejected from the punching holes further enhances the separation efficiency and purity of the resin and fibers, while also ensuring the integrity of the separated fibers during the process.

Description

Technical Field

[0001] This invention relates to the field of recycling equipment technology, and more particularly to a graded recycling device for resin-based composite materials. Background Technology

[0002] Existing resin-based composite material recycling devices separate resin and fiber through mechanical crushing, but this method is usually difficult to achieve efficient separation. In order to improve the purity and efficiency of resin and fiber separation after crushing of resin-based composite materials, a graded recycling device for resin-based composite materials is proposed.

[0003] Existing resin-based composite material recycling devices use ball mills, shears, etc. to crush composite materials into powder or short fiber mixtures, and then separate the resin from the fibers using physical crushing devices. However, the fibers screened by conventional technical means are severely broken, the performance of the recycled fibers is reduced, and the reuse value is low. In addition, some fiber fragments are still left in the screened resin, which requires subsequent separation with water or high temperature, which increases the recycling cost and the recycling efficiency is insufficient. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where the fibers screened by conventional technical means are severely broken, the performance of the recycled fibers is reduced, the reuse value is low, and some fiber fragments are still left in the screened resin, which requires subsequent separation with water or high temperature, thus increasing the recycling cost. Therefore, this invention proposes a graded recycling device for resin-based composite materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A resin-based composite material grading and recycling device includes a clamping roller and a housing assembly. The clamping roller is located inside the housing assembly. Several pressure holes are formed on the outer side of the clamping roller. A crushing probe is inserted into the inner wall of each pressure hole. A punching hole is formed on the side of each crushing probe. A probe actuation assembly is provided at one end of the crushing probe, and a reset assembly is provided on the outer side of the crushing probe. A communicating cavity is formed inside the clamping roller. An airflow separation pump is fixed at one end of the communicating cavity located on the inner wall of the clamping roller. A fixed shaft is fixed to the inner wall of one end of the clamping roller. A drive assembly is provided at one end of the fixed shaft. A displacement drive assembly is provided on the side of the fixed shaft. A follower disk is fixed to one end of the displacement drive assembly. A piston plate is sleeved on the axial side of the follower disk. A winding shaft is fixed to one end of the follower disk. Several fiber winding rods are threadedly connected to the outer side of the winding shaft. A grading and crushing assembly is located inside the housing assembly.

[0007] Preferably, there are several fiber winding rods, and the several fiber winding rods are arranged in a conical shape.

[0008] Preferably, the outer shell assembly includes a dustproof outer shell sleeved on the outside of the clamping roller, with an inlet and an outlet respectively opened at the upper and lower ends of the dustproof outer shell, a base frame fixed at the bottom of the dustproof outer shell, a sliding groove opened on one side of the dustproof outer shell, and one end of the piston plate inserted into the inner wall of the sliding groove.

[0009] Preferably, the probe actuation assembly includes a corrugated disc that fits tightly against one end of the breaking probe. A support shaft is fixed to the inner wall of the central hole of the corrugated disc. One end of the support shaft is fixed to the inner wall of the dustproof housing. A Y-shaped support frame is sleeved on the outer side of the support shaft. The outer side of the Y-shaped support frame is fixed to the inner wall of the clamping roller.

[0010] Preferably, the reset assembly includes a reset spring sleeved on the outside of the breakage probe, with one end of the reset spring tightly fitted against the inner wall of the clamping roller.

[0011] Preferably, the drive assembly includes a meshing gear fixed to one end of a fixed shaft bracket, and one end of the fixed shaft bracket penetrates the side wall of the dustproof housing. A transmission shaft cylinder is meshed with the side of the meshing gear, and a drive motor is fixed to one side of the transmission shaft cylinder. The outer side of the drive motor is fixed to the outer side of the dustproof housing through a motor mount.

[0012] Preferably, the displacement drive assembly includes a transmission belt meshing with the outside of the fixed shaft bracket, a displacement actuating disk meshing with the inner wall of one end of the transmission belt, and a connecting arm hinged to the sides of the displacement actuating disk and the follower disk via a shaft.

[0013] Preferably, the grading and crushing assembly includes a grading drive motor fixed to the inner wall of the dustproof housing, and a grading and crushing shaft is fixed to the output end of the grading drive motor.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention utilizes a punching hole. When the crushing probe crushes the resin-based composite material, the high-pressure airflow ejected from the punching hole separates the resin from the fiber, thereby improving the separation efficiency and purity of the device. Simultaneously, as the displacement actuating plate rotates via the connecting arm, it drives the piston plate in the sliding groove to move up and down, repeatedly stretching the fiber to facilitate separation from the resin. This, combined with the airflow ejected from the punching hole, further enhances the separation efficiency and purity of the resin and fiber. During the resin-fiber separation process, the integrity of the fiber separation is also ensured, reducing damage to the fiber.

[0016] 2. By setting up the piston plate, when the displacement actuating disc is actuated by the transmission belt, the follower disc can be driven to rotate through the connecting arm, and at the same time the piston plate moves up and down to pull the fiber, so that the fiber and resin are quickly separated, thereby effectively improving the separation efficiency and purity of resin and fiber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a graded recycling device for resin-based composite materials proposed in this invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the crushing component of a resin-based composite material grading and recycling device proposed in this invention.

[0019] Figure 3 This is a schematic cross-sectional view of the outer casing assembly of a resin-based composite material grading and recycling device proposed in this invention.

[0020] Figure 4 This is a schematic diagram of the structure of the drive assembly of a resin-based composite material grading and recycling device proposed in this invention;

[0021] Figure 5 This is a schematic cross-sectional view of the probe actuation assembly of a resin-based composite material grading and recycling device proposed in this invention.

[0022] Figure 6 This is an exploded structural diagram of a displacement drive component for a resin-based composite material grading and recycling device proposed in this invention.

[0023] Figure 7 This is a schematic diagram of the structure of the winding shaft of a resin-based composite material grading and recycling device proposed in this invention.

[0024] In the diagram: 1. Clamping roller; 2. Pressure hole; 3. Crushing probe; 4. Punching hole; 5. Connecting cavity; 6. Airflow separation pump; 7. Fixed shaft frame; 8. Follower disc; 9. Piston plate; 10. Winding shaft; 11. Fiber winding bar; 12. Dustproof shell; 13. Base frame; 14. Corrugated disc; 15. Support shaft; 16. Y-shaped support frame; 17. Return spring; 18. Meshing gear; 19. Drive shaft cylinder; 20. Drive motor; 21. Drive belt; 22. Displacement actuation disc; 23. Connecting arm; 24. Sliding groove; 25. Grading drive motor; 26. Grading crushing shaft. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example, refer to Figures 1 to 7 A graded recycling device for resin-based composite materials includes a clamping roller 1, which is disposed inside a housing assembly. Further, the housing assembly includes a dustproof housing 12 sleeved on the outside of the clamping roller 1. The upper and lower ends of the dustproof housing 12 are respectively provided with an inlet and an outlet. A base frame 13 is fixed to the bottom of the dustproof housing 12. A sliding groove 24 is provided on one side of the dustproof housing 12. One end of a piston plate 9 is inserted into the inner wall of the sliding groove 24.

[0029] The further advantage of the above is that, through the setting of the sliding groove 24, when the displacement actuating disk 22 is driven to rotate by the transmission belt 21, the follower disk 8 can be driven to rotate by the connected connecting arm 23. When the follower disk 8 rotates, firstly, the fiber winding rod 11 can be driven to wind up the fiber by the winding shaft rod 10 connected to one side, and secondly, the piston plate 9 can be driven to move up and down in the sliding groove 24 by the connecting arm 23. In this way, the fiber winding rod 11 can repeatedly pull the fiber while winding the fiber, so that the fiber is separated from the resin, and at the same time, the resin adhering to the fiber surface is reduced, thereby improving the separation efficiency and purity of resin and fiber.

[0030] The clamping roller 1 has several pressure holes 2 on its outer side. A crushing probe 3 is inserted into the inner wall of the pressure hole 2. A punching hole 4 is opened on the side of the crushing probe 3. A probe actuation assembly is provided at one end of the crushing probe 3. Further, the probe actuation assembly includes a corrugated plate 14 that fits tightly against one end of the crushing probe 3. A support shaft 15 is fixed to the inner wall of the center hole of the corrugated plate 14. One end of the support shaft 15 is fixed to the inner wall of the dustproof shell 12. A Y-shaped support frame 16 is sleeved on the outer side of the support shaft 15. The outer side of the Y-shaped support frame 16 is fixed to the inner wall of the clamping roller 1.

[0031] A further advantage of the above is that when the clamping roller 1 is driven by the connected drive motor 20, it will clamp the composite material, and the undulating surface on the corrugated disc 14 will drive the crushing probe 3 to make piston movement in the pressure hole 2 on the outside of the clamping roller 1, so as to squeeze and crush the resin to facilitate fiber separation.

[0032] A reset assembly is provided on the outside of the crushing probe 3. Further, the reset assembly includes a reset spring 17 sleeved on the outside of the crushing probe 3, and one end of the reset spring 17 is tightly attached to the inner wall of the clamping roller 1.

[0033] A further advantage of the above is that the return spring 17 can retract the crushing probe 3 when the end of the crushing probe 3 moves to the concave surface of the bellows 14.

[0034] The clamping roller 1 has a connecting cavity 5 inside. An airflow separation pump 6 is fixed at one end of the connecting cavity 5 located on the inner wall of the clamping roller 1. A fixed shaft frame 7 is fixed at one end of the inner wall of the clamping roller 1. A drive assembly is provided at one end of the fixed shaft frame 7. Further, the drive assembly includes a meshing gear 18 fixed to one end of the fixed shaft frame 7. One end of the fixed shaft frame 7 passes through the side wall of the dustproof housing 12. The meshing gear 18 is located outside the dustproof housing 12. A transmission shaft cylinder 19 is meshed and connected to the side of the meshing gear 18. A drive motor 20 is fixed on one side of the transmission shaft cylinder 19. The outer side of the drive motor 20 is fixed to the outer side of the dustproof housing 12 through a motor seat.

[0035] The further advantage of the above is that when the drive motor 20 is working, it drives the meshing gear 18 to rotate through the connected transmission shaft cylinder 19. After the meshing gear 18 rotates, it can drive the clamping roller 1 inside the dustproof shell 12 to rotate through the connected fixed shaft frame 7, so as to clamp the composite material fed into the dustproof shell 12. When the crushing probe 3 is pushed out from the pressure hole 2, the punching hole 4 will be connected to the airflow separation pump 6 through the connecting cavity 5 to spray out high-pressure airflow, so that the resin crushed by the crushing probe 3 can be blown off the fiber along with the airflow, thereby improving the separation efficiency and separation purity of resin and fiber.

[0036] The side of the fixed shaft frame 7 is provided with a displacement drive assembly. Further, the displacement drive assembly includes a transmission belt 21 that is meshed with the outside of the shaft of the fixed shaft frame 7. One end of the transmission belt 21 is meshed with a displacement actuating disk 22. The sides of the displacement actuating disk 22 and the follower disk 8 are hinged together by a shaft with a connecting arm 23.

[0037] The further advantage of the above is that when the displacement actuating disk 22 is driven to rotate by the transmission belt 21, the side-inclined connecting arm 23 will drive the follower disk 8 to rotate, which facilitates the fiber winding rod 11 to collect the fiber. Since the movable length of the connecting arm 23 is longer than the radius of the follower disk 8, it can drive the piston plate 9 connected to the follower disk 8 to slide up and down in the sliding groove 24, thereby continuously pulling the fiber and separating the fiber from the resin.

[0038] One end of the shift drive assembly is fixed with a follower disk 8, a piston plate 9 is sleeved on the shaft side of the follower disk 8, and a winding shaft 10 is fixed to one end of the follower disk 8. Several fiber winding rods 11 are threadedly connected to the outer side of the winding shaft 10. There are several fiber winding rods 11, and the several fiber winding rods 11 are arranged in a conical shape. The interior of the outer shell assembly is provided with a grading and crushing assembly. Further, the grading and crushing assembly includes a grading drive motor 25 fixed to the inner wall of the dustproof outer shell 12. The output end of the grading drive motor 25 is fixed with a grading and crushing shaft 26.

[0039] A further advantage of the above is that the spacing of the graded crushing shafts 26 decreases from top to bottom, thereby enabling the resin to be gradually crushed by the graded crushing shafts 26, so as to separate the broken fibers carried in the resin.

[0040] When the present invention is used, the composite material is fed into the inlet at the top of the dustproof shell 12 and enters between the two clamping rollers 1. As the clamping rollers 1 rotate, one end of the crushing probe 3 moves from the concave surface of the corrugated plate 14 to the convex surface. The crushing probe 3 will push out from the pressure hole 2 to squeeze the composite material. At the same time, the punching hole 4 will be connected to the airflow separation pump 6 through the connecting cavity 5 to spray out high-pressure airflow, which will blow the resin crushed by the crushing probe 3 off the fiber.

[0041] Next, the fiber slides out between the two clamping rollers 1 and is wound up by the fiber winding rod 11 on the rotating winding shaft 10. When the fiber winding rod 11 winds up the fiber, the connecting arm 23 moves and drives the piston plate 9 to move up and down in the sliding groove 24. At this time, the fiber on the fiber winding rod 11 will be repeatedly pulled, so that the resin and fiber can be separated quickly.

[0042] The resin separated from the fibers falls between the graded crushing shafts 26 and is crushed and pulverized step by step by the graded crushing shafts 26, thereby separating the fibers remaining in the resin. Due to the large mass of the resin particles, they are discharged from the discharge port at the bottom of the dustproof housing 12.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for the fractional recovery of resin-based composites, comprising a pinch roller (1) and a housing assembly, characterized in that: The clamping roller (1) is arranged in the inside of the shell assembly, the shell assembly comprises a dustproof shell (12) sleeved on the outside of the clamping roller (1), a plurality of pressure holes (2) are arranged on the outside of the clamping roller (1), a crushing probe (3) is inserted into the inner wall of the pressure hole (2), a stamping hole (4) is arranged on the side of the crushing probe (3), one end of the crushing probe (3) is provided with a probe driving assembly, the probe driving assembly comprises a corrugated disc (14) closely attached to one end of the crushing probe (3), a support shaft (15) is fixedly arranged on the inner wall of the central hole of the corrugated disc (14), one end of the support shaft (15) is fixedly arranged on the inner side wall of the dustproof shell (12), a Y-shaped support frame (16) is sleeved on the outer side of the support shaft (15), the outer side of the Y-shaped support frame (16) is fixedly arranged on the inner wall of the clamping roller (1), a reset assembly is arranged on the outer side of the crushing probe (3), a communication cavity (5) is arranged in the inside of the clamping roller (1), one end of the communication cavity (5) is fixedly arranged on the inner wall of the clamping roller (1), a gas flow separation pump (6) is fixedly arranged on the inner wall of one end of the clamping roller (1), a fixed shaft frame (7) is fixedly arranged on the inner wall of one end of the clamping roller (1), a driving assembly is arranged on one end of the fixed shaft frame (7), a displacement driving assembly is arranged on the side of the fixed shaft frame (7), the displacement driving assembly comprises a transmission belt (21) engagedly connected to the outer side of the shaft of the fixed shaft frame (7), one end of the transmission belt (21) is engagedly connected with a displacement driving disc (22), the displacement driving disc (22) and the side of the follow-up disc (8) are hingedly connected with a connecting arm (23), one end of the displacement driving assembly is fixedly provided with the follow-up disc (8), a piston plate (9) is sleeved on the shaft side of the follow-up disc (8), one end of the follow-up disc (8) is fixedly provided with a winding shaft (10), a plurality of fiber winding rods (11) are threadedly connected on the outer side of the winding shaft (10), a staged crushing assembly is arranged in the inside of the shell assembly.

2. A device for the fractional recovery of resin-based composites according to claim 1, characterized in that, The number of the fiber winding rods (11) is several, and the several fiber winding rods (11) are arranged in a conical shape.

3. A device for the fractional recovery of resin-based composites according to claim 1, characterized in that, The upper and lower ends of the dustproof shell (12) are respectively provided with an inlet and an outlet, the bottom of the dustproof shell (12) is fixedly provided with a base frame (13), one side of the dustproof shell (12) is provided with a sliding groove (24), one end of the piston plate (9) is inserted into the inner wall of the sliding groove (24).

4. A device for the fractional recovery of resin-based composites according to claim 1, characterized in that, The reset assembly comprises a reset spring (17) sleeved on the outer side of the crushing probe (3), one end of the reset spring (17) is closely attached to the inner side wall of the clamping roller (1).

5. A device for the fractional recovery of resin-based composites according to claim 3, characterized in that, The driving assembly comprises an engaging gear (18) fixedly arranged on one end of the fixed shaft frame (7), one end of the fixed shaft frame (7) penetrates through the side wall of the dustproof shell (12), the side of the engaging gear (18) is engagedly connected with a transmission shaft cylinder (19), one side of the transmission shaft cylinder (19) is fixedly provided with a driving motor (20), the outer side of the driving motor (20) is fixedly arranged on the outer side of the dustproof shell (12) through a motor base.

6. A device for the fractional recovery of resin-based composites according to claim 3, characterized in that, The grading crushing assembly comprises a grading driving motor (25) fixed to the inner wall of the dustproof shell (12), and an output end of the grading driving motor (25) is fixed with a grading crushing shaft rod (26).

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