Regeneration processing device for polyurethane damping material

Abstract

The invention relates to the technical field of polyurethane damping material recovery, and discloses a polyurethane damping material regeneration processing treatment device which comprises a device shell, a crushing assembly and a separating assembly, and the crushing assembly and the separating assembly are arranged in the device shell from top to bottom. The crushing assembly comprises two groups of crushing rollers which are meshed with each other; the axes of the two groups of crushing rollers are parallel and the rotating directions are opposite; the separation assembly comprises a material guide cylinder, a rotating cylinder, a permanent magnetic roller and a guide rod which are coaxially arranged, the material guide cylinder is fixed in the device shell, the rotating cylinder is rotatably arranged on the inner side of the material guide cylinder, a cutting blade is fixed to the top of the rotating cylinder, and the cutting blade is located below the crushing roller; according to the polyurethane damping material regeneration processing treatment device, the material utilization rate is increased through cyclic crushing, metal impurities are ensured to be fully exposed, separation leakage caused by wrapping is avoided, a high-frequency alternating magnetic field is utilized, conductive metal such as aluminum and copper induces strong eddy currents, and the repulsive separation function is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of polyurethane vibration damping material recycling, in particular to a regeneration processing device for polyurethane vibration damping material. Background Art

[0002] Polyurethane vibration damping materials are widely used in key vibration damping components (such as engine suspension, track gaskets, etc.) in the fields of automobiles, rail transportation, and machinery manufacturing due to their excellent elasticity, wear resistance, and damping properties. The pretreatment stage is the basis for the recycling of polyurethane vibration damping materials, but it is also the stage where technical bottlenecks are concentrated. Currently, it mainly relies on physical separation and mechanical crushing. The efficient separation of non-magnetic metal impurities (such as aluminum and copper) has always been a technical difficulty. It is difficult and inefficient to remove small particles of non-magnetic metal impurities embedded in waste polyurethane materials, which affects the quality of material recycling. Summary of the invention

[0003] The purpose of the present invention is to provide a regeneration processing device for polyurethane vibration damping materials, aiming to solve the problems in the prior art.

[0004] The present invention is implemented as follows: a polyurethane vibration damping material regeneration processing device comprises a device housing, and a crushing component and a separation component arranged from top to bottom in the device housing; The crushing assembly comprises two sets of mutually meshing crushing rollers, the axes of the two sets of crushing rollers are parallel and the rotation directions are opposite; The separation assembly comprises a material guide cylinder, a rotating cylinder, a permanent magnetic roller and a guide rod which are coaxially arranged, wherein: The material guide cylinder is fixed in the device housing, and its surface receives the material outlet of the crushing component; The rotating drum is rotatably arranged inside the material guide drum, and a cutting blade is fixed on the top of the rotating drum, and the cutting blade is located below the crushing roller; The guide rod is arranged in the drum along the axial direction of the drum, and the rotation direction of the guide rod is opposite to that of the drum, and is used to transport the insufficiently crushed materials upward to the top of the guide drum for cyclic crushing; The permanent magnetic roller is sleeved on the outside of the rotating drum and rotates synchronously with the rotating drum. The surface of the permanent magnetic roller has permanent magnets arranged alternately in polarity to form an alternating magnetic field during rotation. The alternating magnetic field penetrates and acts on the surface of the guide drum.

[0005] Preferably, an end cover is provided on the top of the device housing, and a material injection port is provided on the end cover; The inside of the device shell is provided with a first material guide plate, a second material guide plate and a material separator plate in order from top to bottom, the crushing roller is placed above the first material guide plate, the second material guide plate is placed on the outside of the cutting blade, and the second material guide plate is provided with a material drop opening on the side close to the rotating drum, the material separator plate is placed on the lower outside of the material guide drum, and the material separator plate is in contact with the bottom inner side of the device shell.

[0006] Preferably, a discharge valve is installed at the bottom of the device shell, and two discharge pipes are arranged on the discharge valve, and the ends of the two discharge pipes extend to the inner and outer sides of the partition plate respectively, and the other ends of the two discharge pipes extend to the outside of the device shell.

[0007] Preferably, the crushing assembly further comprises a crushing motor installed outside both sides of the device housing, the output shaft of the crushing motor is connected to a twist rod penetrating through and extending into the device housing, and the crushing rollers are connected via the twist rod.

[0008] Preferably, a return port is provided on one side of the bottom of the rotating drum, and a spiral push blade is provided on the surface of the guide rod, and the outer portion of the spiral push blade contacts the inner wall of the rotating drum.

[0009] Preferably, the separation assembly further comprises a separation motor installed on the outer side of the bottom of the device housing, the output shaft of the separation motor is connected to the lower end of the guide rod, and the lower end of the rotating drum penetrates and extends to the outer side of the bottom of the device housing; The rotating drum and the guide rod are located on the outer side of the bottom of the device shell and are respectively sleeved with a first driving bevel gear and a second driving bevel gear. One side of the bottom of the device shell is also connected to a transmission gear respectively meshed with the first driving bevel gear and the second driving bevel gear through a bearing.

[0010] Preferably, the material guiding cylinder is arranged in a conical shape which is narrow at the top and wide at the bottom, and staggered fall-blocking blocks are evenly distributed on the surface of the material guiding cylinder.

[0011] Preferably, a lever extending to above the crushing roller is obliquely provided on one side of the device housing, and a paddle is sleeved on the outer side of the end of the lever.

[0012] The invention discloses a polyurethane vibration damping material regeneration processing device, which has the following beneficial effects: the polyurethane vibration damping material regeneration processing device of the present scheme improves material utilization rate through cyclic crushing, ensures that metal impurities are fully exposed, avoids leakage caused by wrapping, and utilizes high-frequency alternating magnetic fields to induce strong eddy currents in conductive metals such as aluminum and copper, thereby realizing the function of repulsion and separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a regeneration processing device for a polyurethane vibration damping material provided by an embodiment of the present invention; Figure 2 It is a schematic internal view of a regeneration processing device for a polyurethane vibration damping material provided by an embodiment of the present invention; Figure 3 A regeneration processing device for polyurethane vibration damping material provided by an embodiment of the present invention Figure 2 Schematic diagram looking up; Figure 4 It is a partial cross-sectional structural schematic diagram of a regeneration processing device for a polyurethane vibration damping material provided by an embodiment of the present invention; Figure 5 A regeneration processing device for polyurethane vibration damping material provided by an embodiment of the present invention Figure 4 Schematic diagram of the local enlarged structure at A in the figure.

[0014] Marking Description: 1. Device housing; 2. Crushing motor; 3. Separation motor; 11. End cover; 12. Injection port; 13. First guide plate; 14. Second guide plate; 15. Separator plate; 16. Discharge valve; 141, drop port; 161, discharge pipe; 21. twist rod; 22. crushing roller; 23. lever; 24. paddle; 31. Rotating drum; 32. Guide rod; 33. Material guide drum; 34. Transmission gear; 311, cutting blade; 312, material return port; 313, first driving bevel gear; 314, permanent magnetic roller; 321, spiral push blade; 322, second driving bevel gear; 331. Fall-block. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0017] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0018] This solution aims to solve the problem that it is difficult and inefficient to remove small particles of non-magnetic metal impurities embedded in waste polyurethane materials, which affects the quality of material recycling; In this embodiment: Reference Figure 1-Figure 3 As shown, a preferred embodiment of the present invention is provided.

[0019] The regeneration processing device of the polyurethane vibration damping material of this embodiment comprises a device housing 1, and a crushing component and a separation component arranged from top to bottom in the device housing 1; The crushing assembly includes two sets of mutually meshing crushing rollers 22, the axes of the two sets of crushing rollers 22 are parallel and rotate in opposite directions, and are used to shear and crush the recycled polyurethane damping material; The separation assembly includes a coaxially arranged material guide cylinder 33, a rotating cylinder 31, a permanent magnetic roller 314 and a guide rod 32, wherein: The guide cylinder 33 is fixed in the device housing 1, and its surface receives the discharge port of the crushing assembly; The rotating drum 31 is rotatably arranged inside the material guide drum 33, and a cutting blade 311 is fixed on the top of the rotating drum 31, and the cutting blade 311 is located below the crushing roller 22; The guide rod 32 is arranged in the rotating drum 31 along the axial direction of the rotating drum 31. The rotation direction of the guide rod 32 is opposite to that of the rotating drum 31. During the rotation of the guide rod 32, the spiral push blade 321 connected to the outside of the guide rod 32 is pushed to rotate, thereby being able to transport the insufficiently crushed materials upward to the top of the guide drum 33 for cyclic crushing. The permanent magnetic roller 314 is sleeved on the outside of the rotating drum 31 and rotates synchronously with the rotating drum 31. The surface of the permanent magnetic roller 314 has permanent magnets arranged alternately with NS polarity, which is used to form an alternating magnetic field during rotation. The alternating magnetic field penetrates and acts on the surface of the material guide barrel 33, so that the conductive metal impurities mixed in the polyurethane fragments induce eddy currents and detach from the surface of the material guide barrel 33 under the action of repulsive force, thereby separating the conductive metal impurities from the polyurethane fragments.

[0020] The top of the device housing 1 is provided with an end cover 11, and the end cover 11 is provided with a material injection port 12. The material is fed into the crushing assembly of the device housing 1 through the material injection port 12, and is sheared into 5-10 mm fragments by the crushing roller 22; Furthermore, the interior of the device shell 1 is provided with a first material guide plate 13, a second material guide plate 14 and a material separator plate 15 in sequence from top to bottom, the crushing roller 22 is placed above the first material guide plate 13, the first material guide plate 13 is used to gather the material above the crushing roller 22, the second material guide plate 14 is placed on the outside of the cutting blade 311, and the second material guide plate 14 is provided with a drop port 141 on the side close to the rotating drum 31, the second material guide plate 14 is used to gather the material fragments sheared by the crushing roller 22 so that they can be further cut to 1-3 mm by the cutting blade 311, so as to fall into the material guide drum 33 from the drop port 141, the material separator plate 15 is placed on the lower outside of the material guide drum 33, and the material separator plate 15 is in contact with the bottom inner side of the device shell 1, and is used to separate the polyurethane recycled material and the non-magnetic metal.

[0021] At the same time, in the attached Figure 3 In the embodiment, a discharge valve 16 is installed at the bottom of the device shell 1, and two discharge pipes 161 are arranged on the discharge valve 16. The ends of the two discharge pipes 161 extend to the inner and outer sides of the partition plate 15 respectively, and the other ends of the two discharge pipes 161 extend to the outside of the device shell 1. After being crushed, the material enters the surface of the guide barrel 33. Under the action of the alternating magnetic field, the non-magnetic metal impurities are pushed away and fall along the outer side of the partition plate 15, and are discharged through the discharge pipe 161. The purified polyurethane fragments fall into another discharge pipe 161 through the inner side of the partition plate 15 to complete the sorting.

[0022] The material guide barrel 33 is in a conical shape that is narrow at the top and wide at the bottom, and the surface of the material guide barrel 33 is evenly distributed with staggered anti-fall blocks 331. Since the material guide barrel 33 is narrow at the top and wide at the bottom, the material will be blocked by the anti-fall blocks 331 when falling from the surface of the material guide barrel 33, thereby slowing down the falling speed of the material and prolonging the action time of the magnetic field.

[0023] It is worth noting that the crushing assembly also includes a crushing motor 2 installed on the outside of both sides of the device shell 1, and the output shaft of the crushing motor 2 is connected to a twisted rod 21 that penetrates and extends to the inside of the device shell 1. The crushing roller 22 is connected through the twisted rod 21. One side of the device shell 1 is also obliquely provided with a lever 23 extending to the top of the crushing roller 22, and a paddle 24 is also sleeved on the outer side of the end of the lever 23. To prevent material blockage, the paddle 24 can evenly push the accumulated material into the crushing area (i.e., above the crushing roller 22).

[0024] See attached Figure 4 -Attached Figure 5As shown, a return port 312 is provided on one side of the bottom of the rotating drum 31, and a spiral pushing blade 321 is provided on the surface of the guide rod 32. The outer portion of the spiral pushing blade 321 contacts the inner wall of the rotating drum 31, and the insufficiently crushed materials enter the rotating drum 31 through the return port 312, and are sent back to the top of the guide drum 33 (above the second guide plate 14) by the spiral pushing blade 321, so that the materials are further cut by the cutting blade 311 again, and the embedded non-magnetic metal can be further peeled off.

[0025] The separation assembly also includes a separation motor 3 installed on the outside of the bottom of the device housing 1, the output shaft of the separation motor 3 is connected to the lower end of the guide rod 32, the lower end of the drum 31 passes through and extends to the outside of the bottom of the device housing 1, the drum 31 and the guide rod 32 are located on the outside of the bottom of the device housing 1, and are respectively sleeved with a first driving bevel gear 313 and a second driving bevel gear 322, and a transmission gear 34 is also connected to one side of the bottom of the device housing 1 through a bearing, which is respectively meshed with the first driving bevel gear 313 and the second driving bevel gear 322, the first driving bevel gear 313 is connected to the drum 31, drives it to rotate and drives the permanent magnetic roller 314, and the second driving bevel gear 322 is connected to the guide rod 32 to ensure that it can cooperate with the transmission gear 34 to achieve reverse rotation with the drum 31, so that the drum 31 drives the cutting blade 311 to rotate at a high speed, and the guide rod 32 can push the material to rise inside the drum 31 through the spiral pushing blade 321; Among them, when the separation motor 3 drives the guide rod 32 to rotate clockwise along the axis, the second driving gear 322 outside the guide rod 32 will also rotate clockwise with the guide rod 32, and drive the transmission gear 34 to engage and rotate. Since the first driving gear 313 at the end of the drum 31 is engaged with the transmission gear 34, under the action of the transmission gear 34, the first driving gear 313 will rotate in the opposite direction to the second driving gear 322, that is, the drum 31 is pushed to rotate counterclockwise along the axis; in this process, the guide rod 32 drives the spiral pushing blade 321 to rotate clockwise, pushing the material to rise inside the counterclockwise rotating drum 31, and the drum 31 also drives the cutting blade 311 to rotate respectively, so as to re-crush the lifted material. At the same time, the drum 31 can also drive the permanent magnetic roller 314 outside it to rotate at a high speed to form an alternating magnetic field, so as to separate the re-crushed material from non-magnetic metal impurities, and this cycle is repeated to improve the separation effect.

[0026] The present invention provides a highly efficient integrated polyurethane vibration damping material recycling and processing device, which realizes high-precision separation of non-magnetic metal impurities through the collaborative design of crushing, sorting and circulation. The coaxially integrated rotating drum 31 rotates synchronously with the permanent magnetic roller 314 to form an alternating magnetic field on the surface of the guide drum 33, so that metal impurities such as aluminum and copper are induced to eddy currents and ejected and separated by repulsive force; the guide rod 32 uses the reverse rotating spiral push blades 321 to send the substandard materials back to the cutting blade 311 through the return port 312 for secondary crushing, and the crushing particle size is accurately controlled to 1-3mm, thereby improving the metal exposure rate; the dislocated falling block 331 on the surface of the conical guide drum 33 delays the falling of the material, prolongs the action time of the magnetic field, and cooperates with the split discharge pipe 161 to realize the automatic diversion of metal and recycled materials; the device overcomes the problems of low metal separation efficiency and poor performance of recycled materials in traditional processes, and has both high efficiency, environmental protection and industrial applicability.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A regeneration processing device for polyurethane vibration damping material, characterized in that: It comprises a device shell, and a crushing component and a separation component which are arranged in the device shell from top to bottom; The crushing assembly comprises two sets of mutually meshing crushing rollers, the axes of the two sets of crushing rollers are parallel and the rotation directions are opposite; The separation assembly comprises a coaxially arranged material guide cylinder, a rotating cylinder, a permanent magnetic roller and a guide rod, wherein: The material guide cylinder is fixed in the device housing, and its surface receives the material outlet of the crushing component; The rotating drum is rotatably arranged inside the material guide cylinder, and a cutting blade is fixed on the top of the rotating drum, and the cutting blade is located below the crushing roller; The guide rod is arranged in the drum along the axial direction of the drum, and the rotation direction of the guide rod is opposite to that of the drum, and is used to transport the insufficiently crushed materials upward to the top of the guide drum for cyclic crushing; The permanent magnetic roller is sleeved on the outside of the rotating drum and rotates synchronously with the rotating drum. The surface of the permanent magnetic roller has permanent magnets arranged alternately in polarity to form an alternating magnetic field during rotation. The alternating magnetic field penetrates and acts on the surface of the guide drum.

2. A regeneration processing device for polyurethane vibration damping material according to claim 1, characterized in that: An end cover is provided on the top of the device housing, and a material injection port is provided on the end cover; The inside of the device shell is provided with a first material guide plate, a second material guide plate and a material separator plate from top to bottom, the crushing roller is placed above the first material guide plate, the second material guide plate is placed on the outside of the cutting blade, and the second material guide plate is provided with a material drop opening on the side close to the rotating drum, the material separator plate is placed on the lower outside of the material guide drum, and the material separator plate is in contact with the bottom inner side of the device shell.

3. A regeneration processing device for polyurethane vibration damping material according to claim 2, characterized in that: A discharge valve is installed at the bottom of the device shell, and two discharge pipes are arranged on the discharge valve. The ends of the two discharge pipes extend to the inner and outer sides of the partition plate respectively, and the other ends of the two discharge pipes extend to the outside of the device shell.

4. The regeneration processing device of the polyurethane vibration damping material according to claim 1, characterized in that: The crushing assembly also includes a crushing motor installed outside both sides of the device housing, the output shaft of the crushing motor is connected to a twist rod that penetrates and extends into the device housing, and the crushing rollers are connected through the twist rod.

5. The regeneration processing device of the polyurethane vibration damping material according to claim 1, characterized in that: A material return port is provided at one side of the bottom of the rotating drum, and a spiral pushing blade is provided on the surface of the guide rod, and the outer portion of the spiral pushing blade contacts the inner wall of the rotating drum.

6. The regeneration processing device of the polyurethane vibration damping material according to claim 1, characterized in that: The separation assembly further comprises a separation motor mounted on the outer side of the bottom of the device housing, the output shaft of the separation motor is connected to the lower end of the guide rod, and the lower end of the rotating drum penetrates and extends to the outer side of the bottom of the device housing; The rotating drum and the guide rod are located on the outer side of the bottom of the device shell and are respectively sleeved with a first driving bevel gear and a second driving bevel gear. One side of the bottom of the device shell is also connected to a transmission gear respectively meshed with the first driving bevel gear and the second driving bevel gear through a bearing.

7. The regeneration processing device of the polyurethane vibration damping material according to claim 1, characterized in that: The material guide cylinder is arranged in a conical shape with a narrow upper part and a wide lower part, and staggered fall-blocking blocks are evenly distributed on the surface of the material guide cylinder.

8. The regeneration processing device of the polyurethane vibration damping material according to claim 1, characterized in that: A shifting rod extending to the top of the crushing roller is obliquely arranged on one side of the device housing, and a shifting piece is sleeved on the outer side of the end of the shifting rod.

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