A metal removing device used in a conveying process of waste pet bottle chips

Abstract

The utility model provides a kind of metal removal device used in the conveying process of waste pet bottle piece, including electromagnet and conveyer belt, further include inclined deflector, the upper and lower ends of the inclined deflector are all provided with horizontally distributed conveyer belt.In the utility model, set up two conveyer belts with height difference and staggered front and back, then set up inclined deflector between two conveyer belts, window is opened on the slope of inclined deflector, transition inclined plate is set in the bottom of inclined deflector, the slope of transition inclined plate is less than the slope of inclined deflector, the bottom end of transition inclined plate and the bottom end in window are in abutment, finally set up electromagnetic suction plate on transition inclined plate, whereby waste pet bottle piece will use self-weight to generate falling and sliding action when passing through window in the process of transmission, the action facilitates waste pet bottle piece and metal separation, at this time electromagnetic suction plate can effectively adsorb metal impurities, while waste pet bottle piece can continue to transmit, greatly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste PET bottle flake recycling technology, specifically a metal removal device used in the conveying process of waste PET bottle flakes. Background Technology

[0002] When recycling waste PET bottles, metal separation is required. Currently, the main method of metal separation is to use equipment that combines rollers and magnetic components (electromagnetic plates, electromagnetic rods, etc.). The rotation of the rollers accelerates the tumbling of the PET bottles. After the tumbling PET bottles pass through the magnetic components, the metal inside will be attracted, thus achieving separation.

[0003] However, this type of metal removal equipment has its shortcomings: it is not suitable for assembly line production. Specifically, when using the roller equipment to remove metal, it is necessary to feed the material into the roller equipment first, and after the roller separates the PET bottle flakes, the metal-removed flakes are discharged and then transferred to the next process. This process takes up a lot of time, and for a large number of waste PET bottle flakes that need to have their metal removed, this removal method greatly reduces production efficiency.

[0004] Therefore, this utility model provides a metal removal device used in the conveying process of waste PET bottle flakes. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a metal removal device used in the conveying process of waste PET bottle flakes, thereby solving the problems mentioned in the background art. This invention can not only remove metal but also continuously convey the waste PET bottle flakes, greatly improving production efficiency.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a metal removal device used in the conveying process of waste PET bottle flakes, including a conveyor belt and an inclined guide plate. The upper and lower ends of the inclined guide plate are provided with horizontally distributed conveyor belts. At least one window is opened on the inclined surface of the inclined guide plate. A transition inclined plate opposite to the window is provided on the back of the inclined guide plate. A connecting plate is bent at the top of the transition inclined plate. The top of the connecting plate is movably connected to the bottom wall of the inclined guide plate. The bottom end of the transition inclined plate abuts against the lower end inside the window. An electromagnetic suction plate is provided on the transition inclined plate near the upper end inside the window.

[0007] Furthermore, a rectangular positioning opening is provided on the surface of the transition inclined plate, and the electromagnetic suction plate is fixedly installed in the rectangular positioning opening with its upper end face flush with the upper end face of the transition inclined plate.

[0008] Furthermore, the electromagnetic chuck is positioned at both ends near the left and right ends of the transition ramp, and both sides of the transition ramp are bent with sealing plates.

[0009] Furthermore, a row of separation rods located above the electromagnetic suction plate is fixedly connected to the upper end of the window. The separation rods are conical with their small ends facing outwards.

[0010] Furthermore, baffles are bent on both sides of the inclined guide plate.

[0011] Furthermore, the bottom wall of the inclined guide plate is fixedly connected to an arm plate located on one side of the window. The bottom end of the arm plate is hinged to the bottom wall of the transition inclined plate via an electric push rod. The top end of the connecting plate is hinged to the bottom wall of the inclined guide plate.

[0012] Furthermore, a vibration motor is fixedly installed on the back of the transition ramp.

[0013] The beneficial effects of this utility model are as follows: In this invention, two conveyor belts with different heights and staggered front to back are set up. Then, an inclined guide plate is set between the two conveyor belts. A window is opened on the slope of the inclined guide plate. A transition slope plate is set at the bottom of the inclined guide plate. The slope of the transition slope plate is less than that of the inclined guide plate. The bottom end of the transition slope plate abuts against the bottom end of the window. Finally, an electromagnetic suction plate is set on the transition slope plate. As the waste PET bottle flakes pass through the window during the transmission process, they will fall and slide down due to their own weight. This action facilitates the separation of waste PET bottle flakes from metal. At this time, the electromagnetic suction plate can effectively adsorb metal impurities. Meanwhile, the waste PET bottle flakes can continue to be transmitted, which greatly improves production efficiency.

[0014] In this invention, the electromagnetic suction plate is positioned near the upper part of the window, and a row of separating rods above the electromagnetic suction plate is fixedly connected to the upper part of the window. This arrangement prevents the old PET bottle flakes that are falling down from coming into contact with the electromagnetic suction plate over a large area, thus avoiding the problem of secondary glassing of metal impurities adsorbed on the electromagnetic suction plate, resulting in a better adsorption effect.

[0015] In this invention, the upper end of the transition ramp is hinged to the bottom wall of the inclined guide plate via a connecting plate. An electric push rod is provided at the bottom of the inclined guide plate to control the downward swing of the transition ramp. When the transition ramp is controlled to swing downward, and then the electromagnetic chuck is de-energized and demagnetized, the metal impurities adsorbed on the electromagnetic chuck will fall off directly, which has the advantage of making it more convenient to recover the metal impurities on the electromagnetic chuck. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of the conveyor belt, inclined guide plate, transition inclined plate and electromagnetic suction plate of the metal removal device used in the transportation of waste PET bottle flakes according to this utility model. Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 The diagram at the bottom.

[0017] In the diagram: 2. Conveyor belt; 3. Inclined guide plate; 31. Window; 311. Separator bar; 32. Baffle plate; 4. Transition inclined plate; 41. Connecting plate; 42. Rectangular positioning port; 43. Sealing plate; 5. Electromagnetic suction plate; 6. Arm plate; 7. Electric push rod; 8. Vibration motor. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1 to 3 This utility model provides a technical solution: a metal removal device used in the conveying process of waste PET bottle flakes, including a conveyor belt 2, which is a rubber conveyor belt on a common belt conveyor. When it is running, it can convey the waste PET bottle flakes. It also includes an inclined guide plate 3, with horizontally distributed conveyor belts 2 at both the upper and lower ends of the inclined guide plate 3. The inclination angle of the inclined guide plate 3 relative to the horizontal plane is 50-55°, which is the optimal material sliding angle. Both sides of the inclined guide plate 3 are bent with baffle plates 32 to prevent the waste PET bottle flakes from leaking out. The bottom of the inclined guide plate 3 is fixedly connected to a bracket. It should be noted that a limiting plate near the upper end can be set above the inclined guide plate 3. The two ends of the limiting plate are fixedly connected to the inner side of the baffle plate 32. The function of the limiting plate is to prevent the waste PET bottle flakes entering the inclined guide plate 3 from accumulating locally.

[0020] At least one window 31 is provided on the inclined surface of the inclined guide plate 3. A transition inclined plate 4 opposite to the window 31 is provided on the back of the inclined guide plate 3. The slope of the transition inclined plate 4 is less than that of the inclined guide plate 3, and its angle is 48-52 degrees as the optimal angle. A connecting plate 41 is bent at the top of the transition inclined plate 4. The top of the connecting plate 41 is movably connected to the bottom wall of the inclined guide plate 3. The bottom end of the transition inclined plate 4 abuts against the lower end inside the window 31. In specific implementation, the bottom end of the transition inclined plate 4 is flush with the lower end inside the window 31. An electromagnetic suction plate 5 is provided on the transition inclined plate 4 near the upper end inside the window 31. When the waste PET bottle flakes fall from the upper end of the window 31, they will form a parabolic loose shape. At this time, the electromagnetic suction plate 5 can effectively adsorb the metal impurities in the waste PET bottle flakes. In order to further improve the thoroughness of adsorption, multiple windows 31 arranged up and down along the inclined surface can be provided on the inclined guide plate 3. The electromagnetic suction plate 5 is a common structure in the field. Its specific electromagnetic attraction principle and composition structure will not be described in this application.

[0021] In this embodiment, a rectangular positioning opening 42 is provided on the surface of the transition inclined plate 4, and the electromagnetic suction plate 5 is fixedly installed in the rectangular positioning opening 42 with its upper end face flush with the upper end face of the transition inclined plate 4. This arrangement can avoid the problem of individual waste PET bottle flakes getting stuck when they fall onto or around the electromagnetic suction plate 5.

[0022] Furthermore, the electromagnetic suction plate 5 is positioned at both ends near the left and right ends of the transition inclined plate 4. This arrangement increases the adsorption range of the electromagnetic suction plate 5. Both sides of the transition inclined plate 4 are bent with sealing plates 43, which can prevent the waste PET on the transition inclined plate 4 from leaking out.

[0023] In this embodiment, a row of separating rods 311 is fixedly connected to the upper end of the window 31, located above the electromagnetic suction plate 5. The separating rods 311 are designed to cause the waste PET bottle flakes that slide down to oscillate randomly, allowing the metal impurities in the waste PET bottle flakes to be separated quickly. At the same time, they also serve to isolate some of the waste PET bottle flakes from the electromagnetic suction plate 5, preventing a large number of waste PET bottle flakes from impacting the metal impurities already adsorbed on the electromagnetic suction plate 5. It should be noted that the electromagnetic suction plate 5 has a certain magnetic attraction distance (usually 5-10mm), so it can effectively adsorb metal impurities. The separating rods 311 are conical with the small end facing outward. The conical design can prevent waste PET bottle flakes from getting stuck between adjacent separating rods 311. The width of the gap between the large ends of adjacent separating rods 311 is controlled within the range of 1-2mm, and the diameter of the large end of the separating rod 311 is controlled within the range of 1-1.5mm.

[0024] In this embodiment, the bottom wall of the inclined guide plate 3 is fixedly connected to the arm plate 6. The bottom end of the arm plate 6 is hinged to the bottom wall of the transition inclined plate 4 through the electric push rod 7. The top end of the connecting plate 41 is hinged to the bottom wall of the inclined guide plate 3. When the electric push rod 7 is activated, it will drive the transition inclined plate 4 to swing up and down. The transition inclined plate 4 swings down to the vertical position, and then the electromagnetic suction plate 5 is de-energized. At this time, the metal impurities adsorbed on the electromagnetic suction plate 5 will fall off. A collection box can be placed below the electromagnetic suction plate 5 to collect the metal impurities.

[0025] In this embodiment, a vibration motor 8 is fixedly installed on the back of the transition inclined plate 4. The vibration motor 8 is a structure with low power, and its specific model is selected as needed. After the vibration motor 8 is started, it can drive the transition inclined plate 4 to vibrate, thereby accelerating the separation of waste PET bottle flakes and metal impurities and the speed at which waste PET bottle flakes slide down.

[0026] Before use, connect the electromagnetic chuck 5, vibrating motor 8, electric push rod 7, and the corresponding belt conveyor 2 to the PLC controller. Then, connect the PLC controller to an operation panel. The operation panel has a display screen and buttons. The operator can control the rotation speed and start / stop of the conveyor belt 2, the vibration frequency and start / stop of the vibrating motor 8, the start / stop of the electric push rod 7, and the magnetic attraction force and power on / off of the electromagnetic chuck 5 through the operation panel.

[0027] Working Principle: During operation, two conveyor belts 2 are activated to transport waste PET bottle flakes to the upper conveyor belt 2 via a feeding funnel. As the waste PET bottle flakes are conveyed to one end, they fall onto an inclined guide plate 3 and slide down it. When they pass the upper end of window 31, the detection system senses the passage of metal and immediately transmits this signal to the control system. The control system analyzes and processes the signal and issues an execution command to the separation system. The separation system immediately activates the separation rods 311, which guide the flakes downwards onto the transition inclined plate 4. During this process, the electromagnetic suction plate 5 adsorbs the metal impurities within the waste PET bottle flakes that approach and pass above it. The waste PET bottle flakes with the metal impurities removed slide onto the inclined guide plate 3 and then continue sliding down to the lower conveyor belt 2. The lower conveyor belt 2 continues to transport the waste PET bottle flakes with the metal impurities removed. The material containing metal particles is pushed to the waste outlet and separated.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal removal device used in the conveying process of waste PET bottle flakes, comprising a conveyor belt (2), characterized in that, It also includes an inclined guide plate (3), with horizontally distributed conveyor belts (2) at both the upper and lower ends of the inclined guide plate (3). At least one window (31) is opened on the inclined surface of the inclined guide plate (3). A transition inclined plate (4) opposite to the window (31) is provided on the back of the inclined guide plate (3). A connecting plate (41) is bent on the top of the transition inclined plate (4). The top of the connecting plate (41) is movably connected to the bottom wall of the inclined guide plate (3). The bottom end of the transition inclined plate (4) abuts against the lower end inside the window (31). An electromagnetic suction plate (5) is provided on the transition inclined plate (4) near the upper end inside the window (31).

2. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 1, characterized in that: The transition inclined plate (4) has a rectangular positioning opening (42) on its surface. The electromagnetic suction plate (5) is fixedly installed in the rectangular positioning opening (42) and its upper end face is flush with the upper end face of the transition inclined plate (4).

3. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 2, characterized in that: The electromagnetic suction plate (5) is located at the left and right ends near the transition inclined plate (4), and the left and right sides of the transition inclined plate (4) are both bent with sealing plates (43).

4. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 1, characterized in that: A row of separating rods (311) located above the electromagnetic suction plate (5) is fixedly connected to the upper end of the window (31). The separating rods (311) are conical with the small end facing outward.

5. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 1, characterized in that: Both sides of the inclined guide plate (3) are bent upwards with baffle plates (32).

6. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 1, characterized in that: The bottom wall of the inclined guide plate (3) is fixedly connected to an arm plate (6) located on one side of the window (31). The bottom end of the arm plate (6) is hinged to the bottom wall of the transition inclined plate (4) via an electric push rod (7). The top end of the connecting plate (41) is hinged to the bottom wall of the inclined guide plate (3).

7. The metal removal device used in the conveying process of waste PET bottle flakes according to claim 1, characterized in that: A vibration motor (8) is fixedly installed on the back of the transition inclined plate (4).

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