Automatic recycling and extruding device for corner waste of hollow lattice plate

Abstract

The application relates to the technical field of hollow lattice plate processing, in particular to a hollow lattice plate edge and corner material automatic recycling and reusing extruding device, which comprises a crushing bin, a knife roller is arranged in the crushing bin and rotates horizontally, a plurality of ratchet knives are uniformly arranged on the surface of the knife roller in the circumferential direction and the axial direction, arc plates are symmetrically arranged on the two sides of the knife roller, the upper end of the arc plate is fixedly connected with the inner side wall at the top of the crushing bin through a material guide plate, a plurality of blade teeth are fixedly arranged on the inner ring surface of the arc plate in the radial direction, the ratchet knives and the blade teeth are staggered to form a shearing fit, a sieve plate is fixedly installed at the lower end of the arc plate, the sieve plate is located below the knife roller and is matched with the knife roller, the hollow lattice plate edge and corner material automatic recycling and reusing extruding device can forcibly shear and crush the material through the cooperation of the rotating ratchet knives and the fixed blade teeth, the ratchet knives can hook up the substandard material below to perform cyclic crushing, and the material can be fully crushed.

Description

Technical Field

[0001] This invention relates to the field of hollow panel processing technology, and in particular to an extrusion device for automatic recycling and reuse of hollow panel scraps. Background Technology

[0002] During the production and processing of open-plan lattice panels, a large amount of strip-shaped scrap is generated during the cutting process. Directly disposing of this scrap wastes resources and increases production costs. Therefore, the industry typically crushes and recycles this scrap, then remelts and extrudes it through an extrusion mechanism to achieve resource recycling. Existing crushing and recycling equipment feeds the scrap into a crushing chamber, which is usually equipped with vertically mounted crushing blades. Driving these blades rotates the scrap to agitate and cut it, meeting the requirements for subsequent extrusion and reuse.

[0003] However, these types of crushing blade structures are mostly open-type, allowing material to easily slip directly through the gaps around the blades, resulting in uncrushed material leaking out. Furthermore, the crushing blades can only perform unilateral cutting and crushing, failing to circulate and crush substandard material accumulated at the bottom. All of these problems lead to insufficient material crushing, resulting in uneven particle size distribution in the subsequent extrusion mechanism, causing material blockage, extrusion fluctuations, and other issues, ultimately affecting the quality of the recycled interlayer plate. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies where insufficient crushing affects the stability of subsequent extrusion operations, and to propose an automatic recycling and reuse extrusion device for hollow cell plate scraps.

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

[0006] Design an automatic recycling and reuse extrusion device for hollow panel scraps, including a crushing chamber. Inside the crushing chamber, a horizontally rotating cutter roller is installed. Several ratchet cutters are uniformly and fixedly arranged on the surface of the cutter roller along the circumference and axial direction. Arc plates are symmetrically arranged on both sides of the cutter roller. The upper end of the arc plate is fixedly connected to the inner side wall of the top of the crushing chamber through a guide plate. Several cutting teeth are fixedly arranged radially on the inner surface of the arc plate. The ratchet cutters and cutting teeth are staggered to form a shearing engagement. A screen plate is fixedly installed at the lower end of the arc plate. The screen plate is located below the cutter roller and is adapted to the cutter roller. A feeding mechanism is fixedly connected to the bottom outlet of the crushing chamber. An extrusion mechanism is fixedly connected to the lower end of the feeding mechanism.

[0007] Preferably, the feeding mechanism includes a feeding bin, the top of which is fixedly connected to a cover and the bottom of which is fixedly connected to the crushing bin, a feeding pipe is fixedly installed at the lower end of the feeding bin, the lower end of which is fixedly connected to the extrusion mechanism, and an arch-breaking component is provided inside the crushing bin.

[0008] Preferably, the arch-breaking component includes a drive shaft, which is rotatably disposed in the middle of the cover. A driven pulley is fixedly installed on the upper end of the drive shaft. The driven pulley is connected to a main pulley via belt drive. The lower end of the main pulley is rotatably connected to the cover. The lower end of the drive shaft extends to the inside of the feeding bin and is fixedly installed with a scraper.

[0009] Preferably, a material-pushing blade is fixedly installed on the outside of the drive shaft, and the material-pushing blade is located above the scraper.

[0010] Preferably, a conveying rod is fixedly installed at the lower end of the scraper, and the lower end of the conveying rod extends into the feeding pipe.

[0011] Preferably, the extrusion mechanism includes an extruder, the barrel of the extruder is fixedly connected to the lower end of the feeding pipe through a feed hopper, a screw is rotatably provided inside the barrel of the extruder, and a heating coil is fixedly sleeved on the outer surface of the barrel of the extruder.

[0012] Preferably, the sieve plate is arc-shaped and its arc angle is less than 180°.

[0013] Preferably, the cutting teeth are trapezoidal in shape, with the width of the inward-facing tooth tip being smaller than the width of the outward-facing tooth root.

[0014] The present invention proposes an automatic recycling and reuse extrusion device for hollow grid panel scraps. The advantages are as follows: During operation, the rotating ratchet blade, in conjunction with fixed cutting teeth, forcibly shears and crushes the falling material. Material that meets the crushing standards falls directly through the screen plate, while material that does not meet the standards is hooked back up by the ratchet blade and fed into the shearing zone, achieving material recycling and crushing. This ensures the uniformity of the output particle size, meeting the material requirements of the subsequent extrusion mechanism. The crushed material entering the feeding bin is effectively broken up and dispersed by the cooperation of the feeding blades and scraper. The material is then fed into the extrusion mechanism at a uniform speed and quantity via the conveying rod. The feed rate is continuously controllable with minimal fluctuations, avoiding overload and insufficient material in the extrusion mechanism due to uneven feeding speed. This ensures a stable melt extrusion process and improves the quality of the recycled grid panels. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an extrusion device for automatic recycling and reuse of scrap material from a hollow panel, as proposed in this invention.

[0016] Figure 2 for Figure 1Schematic diagram of the cross-sectional structure at point AA;

[0017] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point BB;

[0018] Figure 4 This is a top view of the top opening of the feeding bin in an extrusion device for automatic recycling and reuse of scrap material from a hollow panel, as proposed in this invention.

[0019] In the diagram: 1. Crushing chamber; 2. Guide plate; 3. Arc plate; 4. Cutting teeth; 5. Cutting roller; 6. Ratchet cutter; 7. Screen plate; 8. Cover; 9. Feeding bin; 10. Main pulley; 11. Driven pulley; 12. Drive shaft; 13. Feeding blade; 14. Scraper frame; 15. Feeding pipe; 16. Conveying rod; 17. Feed hopper; 18. Extruder; 19. Screw; 20. Heating coil. Detailed Implementation

[0020] 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.

[0021] Example 1: Refer to Figure 1-3 An automatic recycling and reuse extrusion device for hollow panel scrap includes a crushing chamber 1. A horizontally rotating cutter roller 5 is mounted inside the crushing chamber 1. The end of the cutter roller 5 is connected to an external geared motor, which drives the cutter roller 5 to rotate. Several ratchet cutters 6 are uniformly and fixedly arranged circumferentially and axially on the surface of the cutter roller 5. The teeth of the ratchet cutters 6 are curved, forming a hook shape. These cutters can not only hook the material above into the shearing area but also hook the material on the surface of the screen plate 7 upwards for cyclic crushing. The rotation of the cutter roller 5 drives the ratchet cutters 6 to rotate, which in turn shears and crushes the scrap material from the hollow panel.

[0022] The cutter roller 5 has symmetrically arranged arc plates 3 on both sides. The upper end of the arc plates 3 is fixedly connected to the inner wall of the top of the crushing chamber 1 through the guide plate 2. Several cutting teeth 4 are fixedly arranged radially on the inner surface of the arc plates 3. The cutting teeth 4 are trapezoidal in shape, and the width of the inward tooth tip is smaller than the width of the outward tooth root. This design makes the cutting teeth 4 more robust and less prone to breakage during the crushing process. The ratchet cutter 6 and the cutting teeth 4 are staggered to form a shearing engagement. The gap between the two forms a shearing zone. The staggered meshing state can shear and crush the material falling into the shearing zone. When the cutter roller 5 is driven to rotate, the ratchet cutter 6 sweeps through the gap between adjacent cutting teeth 4. The material entering the shearing gap can be continuously sheared and crushed, realizing forced crushing and avoiding the problem of material leakage and insufficient crushing during crushing.

[0023] A screen plate 7 is fixedly installed at the lower end of the arc plate 3. The screen plate 7 is arc-shaped with an arc angle of less than 180°. The screen plate 7 is located below the cutter roller 5 and is adapted to the cutter roller 5. The centers of the cutter roller 5, the arc plate 3, and the screen plate 7 coincide. The ratchet cutter 6, which rotates to the bottom, can hook up the material that does not meet the standard on the surface of the screen plate 7 and feed it back into the gap between the ratchet cutter 6 and the cutting teeth 4 for shearing and crushing. At the same time, when the ratchet cutter 6 rotates, it can turn over the material accumulated on the surface of the screen plate 7, so that the material that meets the standard can pass through the screen plate 7 in time, while the material that does not meet the standard is continuously fed into the shearing area for cyclic crushing. This can ensure the uniformity of the output particle size and prevent the material from accumulating on the screen plate 7 and affecting the output speed.

[0024] A feeding mechanism is fixedly connected to the bottom outlet of the crushing chamber 1. The crushed material passing through the screen plate 7 falls directly into the feeding mechanism by its own weight. The feeding mechanism temporarily stores the crushed material, and when feeding is needed, it can quantitatively feed the crushed material into the extrusion mechanism. An extrusion mechanism is fixedly connected to the lower end of the feeding mechanism. The crushed material entering the extrusion mechanism is extruded through heating. Quantitatively feeding the crushed material into the extrusion mechanism ensures the stability of the melt extrusion process and improves the quality of the recycled grid plate.

[0025] Working principle: In operation, the automatic recycling and reuse extrusion device for hollow panel scraps feeds materials into the crushing chamber 1. Driven by the ratchet cutter 6, the material continuously enters the shearing area inside the cutting teeth 4. When the ratchet cutter 6 rotates, it forms a shearing engagement with the cutting teeth 4, which can forcefully shear and crush the material, preventing the material from leaking directly downwards without being crushed. The crushed material falls onto the surface of the screen plate 7. Qualified material leaks directly through the screen plate 7, while unqualified material is hooked upwards again and sent back into the shearing area to achieve cyclic crushing, ensuring uniform output particle size. The crushed material falls downwards into the feeding mechanism, which quantitatively feeds the crushed material into the extrusion mechanism to ensure the stability of the extrusion process. Finally, the molten material is extruded at a uniform speed through the extrusion mechanism.

[0026] Example 2: Refer to Figure 1 and Figure 4 As another preferred embodiment of the present invention, based on embodiment 1, the feeding mechanism includes a feeding bin 9, the top of the feeding bin 9 is fixedly connected to the cover 8 and the bottom of the crushing bin 1, the crushed material passing through the screen plate 7 can fall directly into the feeding bin 9, the lower end of the feeding bin 9 is fixedly installed with a feeding pipe 15, the lower end of the feeding pipe 15 is fixedly connected to the extrusion mechanism, the crushed material in the feeding bin 9 can be directly fed into the extrusion mechanism through the feeding pipe 15.

[0027] The crushing chamber 1 is equipped with an arch-breaking component, which includes a drive shaft 12. The drive shaft 12 is rotatably mounted in the middle of the cover 8. A driven pulley 11 is fixedly installed on the upper end of the drive shaft 12. The driven pulley 11 is connected to a main pulley 10 via a belt drive. The lower end of the main pulley 10 is rotatably connected to the cover 8. The upper end of the main pulley 10 is connected to an external motor. The motor can drive the main pulley 10 to rotate. The rotation of the main pulley 10 can drive the driven pulley 11 to rotate via the belt. The rotation of the driven pulley 11 can drive the drive shaft 12 to rotate.

[0028] The lower end of the drive shaft 12 extends into the inner side of the feeding bin 9 and is fixedly installed with a scraper frame 14. Rotation of the drive shaft 12 drives the scraper frame 14 to rotate, which in turn flips the broken material inside the feeding bin 9, effectively preventing the broken material from accumulating and bridging, ensuring continuous and stable material feeding. A material-dispensing blade 13 is fixedly installed on the outer side of the drive shaft 12, located above the scraper frame 14. Rotation of the drive shaft 12 also drives the material-dispensing blade 13 to rotate, which stirs the material above the bin. Combined with the scraper frame 14, this effectively prevents the broken material from bridging within the bin. A conveyor rod 16 is fixedly installed at the lower end of the scraper frame 14, extending into the feeding pipe 15. Rotation of the scraper frame 14 drives the conveyor rod 16 to rotate, which in turn feeds the material evenly and in equal amounts into the feed mechanism.

[0029] Example 3: Reference Figure 1 In another preferred embodiment of the present invention, based on Embodiment 1 or Embodiment 2, the extrusion mechanism includes an extruder 18. A screw 18 is rotatably mounted inside the barrel of the extruder 18, and a heating coil 20 is fixedly fitted onto the outer surface of the barrel. The extruder 18 is a prior art technology, which heats the crushed material into a viscous melt, and then extrudes the melt through the discharge die. The barrel of the extruder 18 is fixedly connected to the lower end of the feeding pipe 15 via a feed hopper 17. The conveying rod 16 feeds the material into the feed hopper 17 in equal amounts, ensuring that the feed rate inside the machine is continuous, controllable, and has minimal fluctuations, thus preventing overload, underfeed, or unstable extrusion due to inconsistent feed rates.

[0030] 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. An automatic recycling and reuse extrusion device for hollow cell board scraps, comprising a crushing chamber (1), characterized in that, The crushing chamber (1) is equipped with a horizontally rotating cutter roller (5). Several ratchet cutters (6) are uniformly and fixedly arranged on the surface of the cutter roller (5) along the circumferential and axial directions. Arc plates (3) are symmetrically arranged on both sides of the cutter roller (5). The upper end of the arc plate (3) is fixedly connected to the inner wall of the top of the crushing chamber (1) through the guide plate (2). Several cutting teeth (4) are fixedly arranged on the inner ring surface of the arc plate (3) along the radial direction. The ratchet cutters (6) and the cutting teeth (4) are staggered to form a shearing fit. A screen plate (7) is fixedly installed at the lower end of the arc plate (3). The screen plate (7) is located below the cutter roller (5) and is adapted to the cutter roller (5). A feeding mechanism is fixedly connected to the bottom outlet of the crushing chamber (1). An extrusion mechanism is fixedly connected to the lower end of the feeding mechanism.

2. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 1, characterized in that, The feeding mechanism includes a feeding bin (9), the top of the feeding bin (9) is fixedly connected to the cover (8) and the bottom of the crushing bin (1), a feeding pipe (15) is fixedly installed at the lower end of the feeding bin (9), the lower end of the feeding pipe (15) is fixedly connected to the extrusion mechanism, and the crushing bin (1) is provided with an arch-breaking component inside.

3. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 2, characterized in that, The arch-breaking component includes a drive shaft (12), which is rotatably disposed in the middle of the cover (8). A drive pulley (11) is fixedly installed on the upper end of the drive shaft (12). The drive pulley (11) is connected to a main pulley (10) via belt drive. The lower end of the main pulley (10) is rotatably connected to the cover (8). The lower end of the drive shaft (12) extends to the inside of the feeding bin (9) and is fixedly installed with a scraper (14).

4. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 3, characterized in that, A material-pushing blade (13) is fixedly installed on the outside of the drive shaft (12), and the material-pushing blade (13) is located above the scraper (14).

5. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 4, characterized in that, The lower end of the scraper (14) is fixedly installed with a conveying rod (16), and the lower end of the conveying rod (16) extends into the feeding pipe (15).

6. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 1, characterized in that, The extrusion mechanism includes an extruder (18), the barrel of the extruder (18) is fixedly connected to the lower end of the feed pipe (15) through the feed hopper (17), the inside of the barrel of the extruder (18) is provided with a screw (18), and the outer surface of the barrel of the extruder (18) is fixedly fitted with a heating coil (20).

7. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 1, characterized in that, The sieve plate (7) is arc-shaped and its arc angle is less than 180°.

8. The automatic recycling and reuse extrusion device for hollow panel scraps according to claim 1, characterized in that, The cutting tooth (4) is trapezoidal in shape, and the width of its inward-facing tooth tip is smaller than the width of its outward-facing tooth root.

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