A rolling crushing equipment for recycling waste plastics

Abstract

The present invention relates to the field of plastic recycling technology, and in particular to a rolling crushing processing equipment for recycling waste plastics, comprising a crushing frame, a pair of crushing rollers mounted on the crushing frame, a fixed frame connected to the crushing frame, a sliding lifting frame provided on the fixed frame, a feed roller with spikes on the surface rotatably connected to the lifting frame, a placement frame connected to the fixed frame, two sets of guide wheels rotatably connected to the upper portion of the placement frame, two fixed blocks connected to the upper portion of the placement frame, and a cutting mechanism mounted on each of the fixed blocks. Waste wires pass through a groove, and an upper cutter and a lower cutter cut the insulation, which is separated from the conductor along a guide surface. The rotating feed roller feeds the insulation into the rotating crushing roller for crushing. The insulation is pulled by the feed roller, causing the waste wire to continue to be transported along the guide wheel, thereby automatically separating the insulation and the conductor without the need for repeated feeding, with strong continuity, and effectively improving the overall crushing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, in particular to a rolling crushing processing device for recycling waste plastics. Background Art

[0002] In the recycling process of waste plastics, the plastic material is subjected to mechanical forces such as extrusion and shearing by using rolling crushing equipment, thereby breaking the plastic into smaller pieces for subsequent cleaning and granulation processes.

[0003] When the insulation of discarded wires is shredded, there are many problems:

[0004] (1) It is necessary to use separation equipment to separate the insulation and the wire first, and then transfer the insulation to the crushing roller of the rolling crushing equipment for crushing. The separation and processing of the insulation is difficult to carry out continuously, which affects the efficiency of the overall recycling process;

[0005] (2) When the insulation is cut by mechanical force, the unprocessed insulation is easy to fall off the crushing roller and needs to be fed into the insulation again, which leads to the interruption of the processing process, increases the number of manual interventions, and affects the overall crushing efficiency. Summary of the Invention

[0006] In view of this, the present invention provides a rolling crushing processing equipment for recycling waste plastics.

[0007] Technical solution: A rolling crushing processing equipment for recycling waste plastics, including a crushing frame, a pair of crushing rollers installed on the crushing frame, a fixed frame connected to the crushing frame, a sliding lifting frame on the fixed frame, a feed roller with spikes on the surface rotatably connected to the lifting frame, a placement frame connected to the fixed frame, two sets of guide wheels rotatably connected to the upper part of the placement frame, two fixed blocks connected to the upper part of the placement frame, a cutting mechanism installed on the fixed blocks, a pair of guide blocks slidably connected to the side surfaces of the fixed blocks, and an inclined guide surface on the side away from each other of each pair of guide blocks; when the cutting mechanism cuts the insulation, the wire passes through the pair of guide blocks under the guidance of the guide wheels, and the insulation is separated from the wire along the guide surface.

[0008] In addition, it is particularly preferred that the cutting mechanism includes a lower cutter, a rotating block, a mounting block, a bolt, an upper cutter and a limit assembly, a groove is opened on the top of the fixed block, the lower cutter is installed in the groove of the fixed block, the rotating block is rotatably connected to the fixed block, a sliding mounting block is provided in the middle of the rotating block, the rotating block is threadedly connected with a bolt in close contact with the mounting block, the upper cutter is installed on the mounting block, and a limit assembly is provided on the rotating block.

[0009] Furthermore, it is particularly preferred that the distance between the upper cutter and the lower cutter gradually decreases.

[0010] In addition, it is particularly preferred that the limit assembly includes a limit block and a triangular block, the limit block is slidably connected to the rotating block, a reset spring is connected between the limit block and the rotating block, the lower part of the limit block has a triangular portion, the side of the fixed block close to the triangular portion is connected to a triangular block that cooperates with the triangular portion, and the top of the triangular block and the bottom of the triangular portion have inclined surfaces.

[0011] In addition, it is particularly preferred that the rolling crushing processing equipment further comprises a bidirectional screw, the sides of the fixed block are rotatably connected to the bidirectional screw, and the guide block is threadedly connected to the bidirectional screw.

[0012] In addition, it is particularly preferred that the rolling and crushing processing equipment also includes a winding mechanism, which includes a fixed plate, a pair of fixed plates connected to the side of the placement frame, and the top of the fixed plate is rotatably connected to a turntable. The two turntables are connected to the side close to each other with a winding drum for winding the wire, and a square groove is provided on the winding drum. The winding drum is provided with a slider that slides along the axial direction of the winding drum in the square groove, and the slider is provided with a protrusion that slides along the radial direction of the winding drum. One end of the protrusion extends from the square groove to the outside of the winding drum, and the other end of the protrusion is provided with a guide rod. A guide groove is provided inside the winding drum, and the guide groove is divided into an inclined section and a straight section in the axial direction of the winding drum, and the end of the guide rod is located in the guide groove.

[0013] In addition, it is particularly preferred that the winding mechanism also includes a connecting plate, a sliding connecting plate is provided on the fixed plate, the top of the connecting plate is connected to a guide disk, the slider is connected to a connecting block, the connecting block is rotatably connected to a roller located outside the winding drum, and the edge of the guide disk has a sliding groove for the roller to be embedded.

[0014] In addition, it is particularly preferred that the rolling crushing processing equipment further includes a material guide plate, and the bottom of the placement frame is connected with the material guide plate.

[0015] The beneficial effects of the present invention are as follows: 1. The waste electric wires pass through the groove, and the upper cutter and the lower cutter cut the insulation skin. The cut insulation skin is separated from the wire along the guide surface, and the rotating feed roller feeds the insulation skin into the rotating crushing roller for crushing. The insulation skin is pulled by the feed roller, so that the waste electric wires continue to be transported along the guide wheel, thereby automatically separating the insulation skin and the wire without repeated feeding, with strong continuity, and effectively improving the overall crushing efficiency.

[0016] 2. By turning the bolt, the mounting block and the upper cutter move up and down. The distance between the upper cutter and the lower cutter is adjusted according to the thickness of the waste wire. The distance between a pair of guide blocks is adjusted by turning the bidirectional screw. The adjustment is flexible and the adaptability is high.

[0017] 3. After the wire is separated from the insulation, the end of the wire is wound around the convex block under the action of the guide wheel. While the feed roller conveys the insulation, the second reduction motor is controlled to rotate the turntable, winding drum, slider, guide rod, convex block, connecting block and roller as a whole. The rotating convex block drives the wire to be wound around the winding drum, thereby improving the overall recycling efficiency.

[0018] 4. Control the second electric push rod to move the connecting plate, guide disc, roller, connecting block, protrusion, slider and guide rod as a whole. The guide rod enters the straight section along the inclined section of the guide groove, so that the protrusion moves to the inside of the winding drum. The protrusion is separated from the end of the wire. The connecting block continues to move and automatically pushes out the wire wound on the winding drum, so that the wire can be quickly and centrally recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the crushing frame, crushing roller, fixed frame, lifting frame, electric push rod and feed roller of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the fixed frame, lifting frame, electric push rod 1 and feed roller of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the placement frame, guide wheels, fixing block, cutting mechanism and winding mechanism of the present invention.

[0023] Figure 5 It is a side view of the guide wheel, fixed block, cutting mechanism, guide block and winding mechanism of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the fixing block, cutting mechanism and guide block of the present invention.

[0025] Figure 7 The figure is a schematic diagram of the connection relationship among the fixed block, the lower cutter, the rotating block, the mounting block, the bolts, the upper cutter and the guide block of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the fixed block, guide block and bidirectional screw of the present invention.

[0027] Figure 9 It is a structural schematic diagram of the winding mechanism of the present invention.

[0028] Figure 10 The figure is a schematic diagram of the connection relationship among the winding drum, slider, protrusion, guide rod, guide plate, connecting block and roller of the present invention, wherein the winding drum is cut away.

[0029] In the figure: 1. Crushing frame, 2. Crushing roller, 21. Insulation, 22. Wire, 3. Fixed frame, 4. Lifting frame, 41. Electric push rod 1, 5. Feed roller, 6. Placement frame, 61. Guide plate, 7. Guide wheel, 8. Fixed block, 80. Groove, 81. Lower cutter, 82. Rotating block, 83. Rotating shaft, 84. Mounting block, 85. Bolt, 86. Upper cutter, 87. Limit block, 88. Triangular part, 89. Triangular block, 9. Guide block, 90. Guide surface, 91. Bidirectional screw, 101. Fixed plate, 102. Turntable, 103. Winding drum, 104. Square groove, 105. Slider, 106. Bump, 107. Guide rod, 108. Guide groove, 111. Connecting plate, 112. Electric push rod 2, 113. Guide plate, 114. Connecting block, 115. Roller. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1: A crushing equipment for recycling waste plastics, refer to Figures 1-8 , including a crushing frame 1, a crushing roller 2, a fixed frame 3, a lifting frame 4, an electric push rod 41, a feed roller 5, a placement frame 6, a guide wheel 7, a fixed block 8, a cutting mechanism and a guide block 9. A pair of crushing rollers 2 driven by a servo motor are installed on the crushing frame 1. The structure and crushing principle of the crushing roller 2 are based on the existing technology. The front side of the top of the crushing frame 1 has a feed port. The crushing frame 1 is fixedly connected to the fixed frame 3 at the feed port. The fixed frame 3 is provided with a lifting frame 4 that slides up and down. The upper parts of the left and right sides of the crushing frame 1 are bolted with an electric push rod 41. The telescopic rod of the electric push rod 41 is connected to the lifting frame 4. The lifting frame 4 is rotatably connected to the feed roller 5 driven by a reduction motor. The surface of the feed roller 5 has spikes for piercing the insulating skin 21. A placement frame 6 is welded on the front side of the fixed frame 3. The upper part of the placement frame 6 is rotatably connected to two groups of guide wheels 7. Each group of guide wheels 7 has three, and the position of each group of guide wheels 7 is as shown Figure 5 As shown, two fixed blocks 8 are fixedly connected to the upper part of the placement frame 6, and a cutting mechanism is installed on the fixed blocks 8. A pair of guide blocks 9 are slidably connected to the rear side of the fixed blocks 8, and each pair of guide blocks 9 has an inclined guide surface 90 on the side away from each other; when the cutting mechanism cuts the insulation skin 21, under the guidance of the guide wheel 7, the wire 22 passes through the pair of guide blocks 9, and the insulation skin 21 is separated from the wire 22 along the guide surface 90.

[0032] refer to Figure 4-Figure 7The cutting mechanism includes a lower cutter 81, a rotating block 82, a mounting block 84, a bolt 85, an upper cutter 86 and a limit assembly. A groove 80 is opened in the middle of the top of the fixed block 8. The fixed block 8 is installed with a lower cutter 81 at the groove 80. The fixed block 8 is rotatably connected to the rotating block 82 with a rotating shaft portion 83. The rotating block 82 rotates around the rotating shaft portion 83. A sliding mounting block 84 is provided in the middle of the rotating block 82. The front side of the rotating block 82 is threadedly connected with a bolt 85. The end of the bolt 85 is in close contact with the mounting block 84, thereby limiting the position of the mounting block 84. The mounting block 8 An upper cutter 86 is installed on the lower side of each of the rotating blocks 82. The distance between the upper cutter 86 and the lower cutter 81 gradually decreases from the front to the back. A limit assembly is provided on the rotating block 82. The limit assembly includes a limit block 87 and a triangular block 89. The end of the rotating block 82 away from the rotating shaft 83 is slidably connected to the limit block 87. A return spring is fixedly connected between the limit block 87 and the rotating block 82. The lower part of the limit block 87 has a triangular portion 88. The side of the fixed block 8 close to the triangular portion 88 is connected to a triangular block 89 that cooperates with the triangular portion 88. The top of the triangular block 89 and the bottom of the triangular portion 88 both have inclined surfaces.

[0033] refer to Figure 8 The rolling crushing processing equipment also includes a bidirectional screw 91. The rear side of the fixed block 8 is rotatably connected to the bidirectional screw 91, and the guide block 9 is threadedly connected to the bidirectional screw 91.

[0034] refer to Figure 4 The rolling crushing processing equipment also includes a material guide plate 61, and the bottom of the placement frame 6 is fixedly connected with the material guide plate 61.

[0035] In the first step, the limit block 87 is manually pulled so that the triangular portion 88 of the limit block 87 is separated from the triangular block 89. The reset spring is deformed and pushes the limit block 87 to drive the rotating block 82 to rotate upward with the rotating shaft portion 83 as the axis. The rotating block 82 drives the mounting block 84 and the upper cutter 86 to move synchronously. The limit block 87 is released and reset relative to the rotating block 82 under the action of the reset spring.

[0036] The second step is to place the waste wires in the placement frame 6, and pass the ends of the waste wires through the groove 80, and then push the rotating block 82 to rotate downward and reset, driving the mounting block 84, the upper cutter 86 and the limit block 87 to move synchronously. When the inclined surface of the triangular portion 88 of the limit block 87 contacts the inclined surface of the triangular block 89, the limit block 87 is squeezed by the triangular block 89, causing the limit block 87 to slide and the reset spring to deform. When the triangular portion 88 passes over the triangular block 89, the reset spring recovers, driving the limit block 87 to reset, and the top of the triangular portion 88 contacts the bottom of the triangular block 89. The limit block 87 is limited by the triangular block 89, thereby limiting the rotating block 82.

[0037] In the third step, the rear ends of the upper cutter 86 and the lower cutter 81 cut into the insulation 21 from the top and bottom respectively, and the discarded wire is manually pulled back a distance. After the discarded wire passes through the upper cutter 86 and the lower cutter 81, the upper cutter 86 and the lower cutter 81 cut the insulation 21 into two left and right sections. The cut insulation 21 is separated from the wire 22 along the guide surface 90, and the wire 22 passes between a pair of guide blocks 9.

[0038] The fourth step is to control the electric push rod 41 to drive the lifting frame 4 to rise, drive the feed roller 5 to rise, place the insulation skin 21 separated from the wire 22 above the feed roller 5, and control the electric push rod 41 to make the lifting frame 4 and the feed roller 5 descend until the spikes of the feed roller 5 pierce the insulation skin 21.

[0039] The fifth step is to control the reduction motor 1 to drive the feed roller 5 to rotate counterclockwise, and at the same time control the servo motor to drive the crushing roller 2 to rotate. The feed roller 5 feeds the insulation 21 into the crushing roller 2 for crushing. The insulation 21 is pulled by the feed roller 5, so that the waste wires continue to be transported backward along the guide wheel 7. The guide wheel 7 plays a guiding role. The upper cutter 86 and the lower cutter 81 continue to cut the insulation 21 of the waste wire 22. With the cooperation of the guide surface 90, the insulation 21 and the wire 22 are automatically separated. The separated insulation 21 is automatically fed to the crushing roller 2 by the feed roller 5 for crushing. There is no need for repeated feeding, the continuity is strong, and the overall crushing efficiency is effectively improved.

[0040] When it is necessary to recycle waste wires of different thicknesses, the bolt 85 is manually rotated to loosen the mounting block 84, which can push the mounting block 84 to slide up and down, driving the upper cutter 86 to move up and down, and then tightening the bolt 85 to fix the position of the mounting block 84, so that the distance between the upper cutter 86 and the lower cutter 81 can be adjusted according to the thickness of the waste wires. The bidirectional screw 91 is manually rotated to make the guide block 9 slide in the left and right directions under the action of the threaded connection, so as to adjust the distance between the pair of guide blocks 9 according to the thickness of the waste wires. The adjustment is flexible and the adaptability is high.

[0041] Example 2: Based on Example 1, refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 9 and Figure 10The rolling crushing processing equipment also includes a winding mechanism, which includes a fixed plate 101, a turntable 102, a winding drum 103, a slider 105, a protrusion 106 and a guide rod 107. A pair of fixed plates 101 are bolted to the front side of the placement frame 6. The top of the fixed plate 101 is rotatably connected to the turntable 102. A reduction motor 2 is installed on the fixed plate 101 for driving the turntable 102 to rotate. The two turntables 102 are connected to the winding drum 103 for winding the wire 22 on the side close to each other. The winding drum 103 is opened The square groove 104 and the winding drum 103 are both provided with a slider 105 in the square groove 104 that slides axially along the winding drum 103, and the slider 105 is provided with a protrusion 106 that slides radially along the winding drum 103. One end of the protrusion 106 extends from the square groove 104 to the outside of the winding drum 103, and the other end of the protrusion 106 is provided with a guide rod 107. A guide groove 108 is opened inside the winding drum 103. The guide groove 108 is divided into an inclined section and a straight section in the axial direction of the winding drum 103, and the end of the guide rod 107 is located in the guide groove 108.

[0042] refer to Figure 4 、 Figure 5 、 Figure 9 and Figure 10 The winding mechanism also includes a connecting plate 111, an electric push rod 112, a guide plate 113, a connecting block 114 and a roller 115. The fixed plate 101 is provided with a connecting plate 111 that slides left and right. The lower part of the fixed plate 101 is bolted with an electric push rod 112. The telescopic rod of the electric push rod 112 is connected to the connecting plate 111. The top of the connecting plate 111 is fixedly connected to the guide plate 113. The slider 105 is fixedly connected to the connecting block 114. The connecting block 114 is rotatably connected to the roller 115 located outside the winding drum 103. The edge of the guide plate 113 has a sliding groove for the roller 115 to be embedded.

[0043] After the wire 22 is separated from the insulation 21, the wire 22 is passed around the uppermost guide wheel 7 and the end of the wire 22 is wound around the protrusion 106. While the feed roller 5 transports the insulation 21, the reduction motor 2 is controlled to drive the turntable 102 to rotate, driving the winding drum 103, the slider 105, the guide rod 107, the protrusion 106, the connecting block 114 and the roller 115 to rotate together. The roller 115 rolls along the chute, and the rotating protrusion 106 drives the wire 22 to be automatically wound on the winding drum 103, thereby improving the overall recycling efficiency. When the waste wire processing is completed, the electric push rod 21 is controlled to drive the connecting plate 111 to slide, driving the two guide discs 113 to move in a direction close to each other. Since the roller 115 is embedded in the chute, the roller 115, the connecting block 114, the protrusion 106, the slider 105 and the guide rod 107 move together with the guide disc 113. When the guide rod 107 moves along the chute, the wire 22 is automatically wound on the winding drum 103. After the inclined section of the guide groove 108 enters the straight section, the guide rod 107 drives the protrusion 106 to move to the inside of the winding drum 103. Since the wire 22 is wound on the winding drum 103, the moving protrusion 106 will be separated from the end of the wire 22. The control electric push rod 112 causes the connecting plate 111, the guide plate 113, the roller 115, the connecting block 114, the protrusion 106, the slider 105 and the guide rod 107 to continue to move, and the connecting block 114 will be wound on the winding drum. The wire 22 on the drum 103 is automatically pushed out so that the wire 22 can be quickly and centrally recovered. Subsequently, the electric push rod 112 is controlled to move the connecting plate 111, the guide plate 113, the roller 115, the connecting block 114, the protrusion 106, the slider 105 and the guide rod 107 to reset. The guide rod 107 enters the inclined section along the straight section of the guide groove 108, so that the protrusion 106 extends to the outside of the winding drum 103 again, and the wire 22 can continue to be wound.

[0044] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A roller crushing device for recycling waste plastics, comprising a crushing frame (1), on which a pair of crushing rollers (2) are mounted, characterized in that: The crushing frame (1) is connected to a fixed frame (3), the fixed frame (3) is provided with a sliding lifting frame (4), the lifting frame (4) is rotatably connected to a feed roller (5) with spikes on the surface, the fixed frame (3) is connected to a placement frame (6), the upper part of the placement frame (6) is rotatably connected to two sets of guide wheels (7), the upper part of the placement frame (6) is connected to two fixed blocks (8), the fixed blocks (8) are each installed with a cutting mechanism, the side of the fixed block (8) is slidably connected to a pair of guide blocks (9), and each pair of guide blocks (9) has an inclined guide surface (90) on the side away from each other; when the cutting mechanism cuts the insulation (21), under the guidance of the guide wheel (7), the wire (22) passes through the pair of guide blocks (9), and the insulation (21) is separated from the wire (22) along the guide surface (90); The rolling crushing processing equipment also includes a winding mechanism, the winding mechanism includes a fixed plate (101), a pair of fixed plates (101) are connected to the side of the placement frame (6), the top of each of the fixed plates (101) is rotatably connected to a turntable (102), and the sides of the two turntables (102) close to each other are connected to a winding drum (103) for winding the wire (22), the winding drum (103) is provided with a square groove (104), and the winding drum (103) is provided with a shaft along the axis of the winding drum (103) in the square groove (104). A slider (105) is provided on the slider (105) so as to slide radially along the winding drum (103). One end of the slider (106) extends from the square groove (104) to the outside of the winding drum (103). The other end of the slider (106) is provided with a guide rod (107). A guide groove (108) is provided inside the winding drum (103). The guide groove (108) is divided into an inclined section and a straight section in the axial direction of the winding drum (103). The end of the guide rod (107) is located in the guide groove (108).

2. The tumbling and crushing equipment for recycling waste plastics according to claim 1, characterized in that: The cutting mechanism comprises a lower cutter (81), a rotating block (82), a mounting block (84), a bolt (85), an upper cutter (86) and a limiting assembly, wherein a groove (80) is formed on the top of each fixed block (8), and each fixed block (8) is provided with a lower cutter (81) at the groove (80), and each fixed block (8) is rotatably connected to a rotating block (82), and a sliding mounting block (84) is provided in the middle of each rotating block (82), and each rotating block (82) is threadedly connected to a bolt (85) in close contact with the mounting block (84), and each mounting block (84) is provided with an upper cutter (86), and a limiting assembly is provided on the rotating block (82).

3. The tumbling and crushing equipment for recycling waste plastics according to claim 2, characterized in that: The distance between the upper cutter (86) and the lower cutter (81) gradually decreases.

4. The tumbling and crushing equipment for recycling waste plastics according to claim 3, characterized in that: The limiting assembly comprises a limiting block (87) and a triangular block (89); the rotating block (82) is slidably connected to the limiting block (87); a return spring is connected between the limiting block (87) and the rotating block (82); the lower portion of the limiting block (87) has a triangular portion (88); the side of the fixed block (8) close to the triangular portion (88) is connected to a triangular block (89) that cooperates with the triangular portion (88); the top of the triangular block (89) and the bottom of the triangular portion (88) both have inclined surfaces.

5. The tumbling and crushing equipment for recycling waste plastics according to claim 1, characterized in that: The rolling crushing processing equipment further comprises a bidirectional screw (91), the sides of the fixed block (8) are rotatably connected to the bidirectional screw (91), and the guide block (9) is threadedly connected to the bidirectional screw (91).

6. The tumbling and crushing equipment for recycling waste plastics according to claim 1, characterized in that: The winding mechanism further comprises a connecting plate (111), a sliding connecting plate (111) is provided on the fixed plate (101), the top of each connecting plate (111) is connected to a guide disk (113), each slider (105) is connected to a connecting block (114), each connecting block (114) is rotatably connected to a roller (115) located outside the winding drum (103), and the edge of the guide disk (113) has a sliding groove for the roller (115) to be embedded.

7. The tumbling and crushing equipment for recycling waste plastics according to claim 1, characterized in that: The rolling crushing processing equipment further comprises a material guide plate (61), and the material guide plate (61) is connected to the bottom of the placement frame (6).

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