A waste plastic part recycling device

Abstract

The application discloses a kind of waste plastic parts recycling device, belong to plastic recycling technical field, including being able to to waste plastics crushing crushing device and screening device, the discharge port of the crushing device is arranged above the screening device, the screening device includes: conveyor belt, sliding frame and fixed frame, the sliding frame is installed in the inside of fixed frame, the conveyor belt is installed in the inside of sliding frame, and the sliding frame can reciprocate in the inside of fixed frame. The surface of the conveyor belt is designed with multiple backflow grooves. These backflow grooves are ingeniously embedded in the gaps of multiple convex stripes, and each backflow groove is equipped with a backflow belt. Notably, the conveying direction of the backflow belt is opposite to the direction of the conveyor belt itself. This unique design not only effectively separates metal scraps and plastic scraps, but also significantly improves the screening effect.

Description

TECHNICAL FIELD

[0001] The application relates to a waste plastic part recycling device and belongs to the technical field of plastic part recycling. BACKGROUND

[0002] With the rapid development of industrial production, the quantity of waste plastics is rapidly increasing. The inside of the waste plastic pieces contains metal impurities, the screening effect of the existing waste plastic part recycling device is not ideal, metal pieces and plastic pieces are easily mixed together, affecting the subsequent recycling and reuse, if screening is carried out after crushing, other equipment will be occupied, and the work efficiency will be reduced, therefore, the application provides a waste plastic part recycling device for solving the above problems. SUMMARY

[0003] In view of the problems existing in the prior art, the application provides a waste plastic part recycling device which can effectively solve the problem of difficult separation of metal and plastic pieces.

[0004] In order to achieve the above purpose, the application adopts the following technical scheme: a waste plastic part recycling device, comprising a crushing device capable of crushing waste plastics and a screening device, the discharge port of the crushing device is arranged above the screening device, the screening device comprises: a conveyor belt, the surface of the conveyor belt is provided with a plurality of return grooves arranged along the conveying direction of the conveyor belt, each return groove is provided with a return belt inside, and the conveying direction of the return belt is opposite to that of the conveyor belt. A slide rail and a fixed frame, the slide rail is installed in the fixed frame, the conveyor belt is installed in the slide rail, and the slide rail can reciprocate up and down in the fixed frame. A driving device, a plurality of abutting wheels are rotatably installed in the slide rail, the abutting wheels are in contact with the return belt, and the abutting wheels can drive the return belt to rotate.

[0005] Preferably, the conveyor belt comprises a belt support, the surface of the belt support is provided with a plurality of convex strips, the convex strips are distributed at intervals, the upper surface of the convex strip is convex, the return groove is arranged between two adjacent convex strips, and the return belt is arranged at the groove bottom of the return groove.

[0006] Preferably, a connecting rod is rotatably installed in the slide rail, the abutting wheel is fixedly sleeved on the connecting rod, and the slide rail is fixedly provided with a driving device for driving the connecting rod to rotate.

[0007] Preferably, the fixed frame is provided with a groove with an upper opening, the both sides of the groove are provided with a spacing space opening downward, the slide rail is in a U shape, and the both sides of the slide rail extend into the spacing space.

[0008] Preferably, the inside of the fixed frame is provided with a first discharge port and a second discharge port, and the first discharge port and the second discharge port are arranged at the both ends of the conveyor belt.

[0009] Preferably, the crushing device comprises an inlet shell fixed above the fixed frame, two crushing rollers are rotatably installed inside the inlet shell, and a driving device for driving the crushing rollers to rotate is fixed on the inlet shell.

[0010] Preferably, two driving wheels are rotatably installed inside the sliding frame, the supporting belt is sleeved on the two driving wheels, a second motor for driving the driving wheels to rotate is fixed on the sliding frame, and a supporting plate is arranged between the two driving wheels and fixed on the sliding frame.

[0011] Preferably, the number of connecting rods is two, the connecting rods are rotatably installed on the two side walls of the sliding frame, and the connecting rods are rotatably installed between any two adjacent abutting wheels and penetrate the bottom of the sliding frame and are rotatably installed on the fixed frame.

[0012] Beneficial effects:

[0013] The present application designs a screening device, and a plurality of return grooves are designed on the surface of the conveying belt. The return grooves are embedded in the gaps of a plurality of convex strips, and each return groove is equipped with a return belt. The conveying direction of the return belt is opposite to the direction of the conveying belt itself. This design not only effectively distinguishes metal scraps and plastic scraps, but also significantly improves the screening effect.

[0014] In addition, the conveying belt adopts an up-down reciprocating vibration design, which not only increases the movement distance of the materials on the surface of the conveying belt, but also further improves the screening efficiency. The driving mechanism of the return belt is associated with the vibration design of the sliding frame, and this linkage not only saves the starting device, but also significantly improves the overall working efficiency.

[0015] The present application also integrates a crushing device and a screening device, wherein the discharge port of the crushing device is directly arranged on the surface of the screening device. This integrated design allows the crushing step to be completed immediately, which undoubtedly saves a lot of working time and significantly improves the overall working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal view of the present recycling device.

[0017] Figure 2 It is a structural schematic view of the present recycling device.

[0018] Figure 3 It is a cross section of the present conveying belt Figure 1 .

[0019] Figure 4 It is a cross section of the present conveying belt Figure 2 .

[0020] Figure 5 For the application Figure 4 Enlarged view of A in the application.

[0021] Figure 6 For the connection between the fixed frame, connecting rod and abutting wheel of the application.

[0022] Figure 7 For the connection between the connecting rod, abutting wheel and connecting rod of the application.

[0023] In the figure: 1, fixed frame, 2, first discharge port, 3, connecting rod, 4, sliding frame, 5, abutting wheel, 6, drive wheel, 7, shell, 8, support plate, 9, crushing roller, 10, inlet shell, 11, sliding rod, 12, inlet, 13, second discharge port, 14, conveyor belt, 141, convex strip, 142, backflow belt, 143, belt support, 15, first motor, 16, second motor, 17, support column, 18, connecting rod, 19, space. DETAILED DESCRIPTION

[0024] The application will be described in detail below with specific examples, but is not limited to the application.

[0025] Example 1

[0026] As Figures 1-5 shown, in this embodiment, a waste plastic part recycling device is provided, which includes a crushing device capable of crushing waste plastics and a screening device, the crushing device includes an inlet shell 10 fixed above the fixed frame 1, two crushing rollers 9 are rotatably installed inside the inlet shell 10, the inlet shell 10 is fixed with a driving device for driving the crushing rollers 9 to rotate, the relative rotation of the crushing rollers 9 can crush the material, the discharge port of the crushing device is arranged above the screening device, the crushing device is two relatively rotating crushing rollers 9, the crushing rollers 9 crush the material, the crushing rollers 9 are commonly used components in the prior art and are not the innovation point of the application, therefore, the application will not be specifically explained, the crushed material falls on the screening device from the outlet of the crushing device, since the waste plastics may contain metal and other hard impurities, therefore, the material discharged from the discharge port contains metal and other heavy materials.

[0027] The screening device comprises a conveying belt 14, a sliding frame 4, a fixed frame 1 and a driving device, two driving wheels 6 are rotatably installed in the sliding frame 4, a supporting belt 143 is sleeved on the two driving wheels 6, the sliding frame 4 is fixed with a second motor 16 for driving the driving wheels 6 to rotate, the second motor 16 drives the driving wheels 6 to rotate, the driving wheels 6 drive the supporting belt 143 to convey on the driving wheels 6, a supporting plate 8 is arranged between the two driving wheels 6, the supporting plate 8 is fixed on the sliding frame 4 and is used for supporting the conveying belt 14, so that the conveying belt 14 will not be deformed under the pressing of the pressing wheels 5, the surface of the conveying belt 14 is provided with a plurality of backflow grooves arranged along the conveying direction, the backflow grooves are arranged at intervals, in the conveying process of the conveying belt 14, the materials falling above the conveying belt 14 will fall into the backflow grooves, the backflow belt 142 is arranged in each backflow groove, the conveying direction of the backflow belt 142 is opposite to that of the conveying belt 14, the conveying belt 14 pushes most of the materials to move in the conveying direction, the backflow belt 142 in the backflow groove drives part of the materials to move in the opposite direction, and the materials with large volume cannot enter the backflow groove, the conveying belt 14 comprises the supporting belt 143, the surface of the supporting belt 143 is provided with a plurality of convex strips 141, the convex strips 141 are arranged at intervals, the upper surface of the convex strip 141 is convex, the backflow groove is arranged between the two adjacent convex strips 141, the backflow belt 142 is arranged at the groove bottom of the backflow groove, the width of the convex strip 141 is wider than that of the backflow groove, so most of the materials will move along the convex strip 141, part of the materials falls into the backflow groove, the connecting rod 18 is rotatably installed in the sliding frame 4, the pressing wheel 5 is fixedly sleeved on the connecting rod 18, the sliding frame 4 is fixed with a driving device for driving the connecting rod 18 to rotate, the driving device in the embodiment is a first motor 15 fixed on the sliding frame 4, the first motor 15 drives the connecting rod 18 to rotate, the connecting rod 18 drives the plurality of pressing wheels 5 to rotate at the same time when rotating, the pressing wheels 5 and the backflow belt 142 are both provided with teeth, the teeth on the backflow belt 142 are soft teeth which can be slightly deformed, for example, rubber.

[0028] The slide frame 4 is installed in the fixed frame 1, the conveying belt 14 is installed in the slide frame 4, the slide frame 4 can reciprocate up and down in the fixed frame 1, the reciprocating vibration of the slide frame 4 forms the vibration of the slide frame 4 and the conveying belt 14 in the slide frame 4, and the conveying belt 14 vibrates up and down during conveying. Because the weight of plastic is lighter and the weight of metal is heavier, the metal will fall to the lower layer and the broken plastic will be arranged on the upper layer of the metal during the up and down vibration of the conveying belt 14. The metal falls into the reflux tank and is conveyed through the reflux belt 142. The conveying direction of the conveying belt 14 is opposite to the conveying direction of the reflux belt 142. Therefore, only the broken plastic and metal need to be collected at both ends of the conveying belt 14. The fixed frame 1 is provided with a groove with an upper opening. The both sides of the groove are provided with a displacement space 19 which is open to the bottom. The slide frame 4 is U-shaped, the both sides of the slide frame 4 extend into the displacement space 19, the lower end of the slide frame 4 is fixed with a slide rod 11, the groove bottom is provided with a sliding hole, the slide rod 11 can slide in the sliding hole, and the slide rod 11 and the sliding groove cooperate to guide the slide frame 4. The slide frame 4 can move up and down in the groove, and the upper end of the side plate of the slide frame 4 is always arranged in the displacement space 19 during movement. The side plate and the displacement space 19 are in a sealed state, and the material cannot enter the displacement space 19.

[0029] A plurality of rotating installation resistance wheels 5 are installed in the slide frame 4. The resistance wheel 5 is in contact with the reflux belt 142. The resistance wheel 5 can drive the reflux belt 142 to rotate. The resistance wheel 5 can drive the reflux belt 142 to convey during rotation. The reflux belt 142 drives the material in the reflux tank to move in the opposite direction of the conveying direction of the conveying belt 14.

[0030] The inside of the fixed frame 1 is provided with a first discharge port 2 and a second discharge port 13. The both sides of the fixed frame 1 are provided with a housing 7 for sealing the first discharge port 2 and the second discharge port 13. The first discharge port 2 and the second discharge port 13 are arranged at both ends of the conveying belt 14 respectively. The both ends of the conveying belt 14 can discharge the broken plastic and metal respectively. The two materials fall into the first discharge port 2 and the second discharge port 13 respectively. The staff can collect the materials at the outlet of the discharge port.

[0031] Embodiment two

[0032] As Figures 1-7As shown, on the basis of embodiment one, the embodiment provides another waste plastic part recycling device that links the driving mechanism of the backflow belt 142 and the vibration of the sliding frame 4 together, and the specific implementation manner is as follows: the number of connecting rods 18 is two, the connecting rods 18 are rotatably installed on the two side walls of the sliding frame 4 through the support columns 17, the eccentric rotating installation of the connecting rod 3 is arranged between any two adjacent abutting wheels 5, the connecting rod 3 penetrates the bottom of the sliding frame 4 and is rotatably installed on the fixed frame 1, when the first motor 15 drives the connecting rod 18 to rotate, the connecting rod 3 connected between the two abutting wheels 5 will move up and down, driving the sliding frame 4 to move up and down, thereby linking the driving mechanism of the backflow belt 142 and the vibration of the sliding frame 4 together.

[0033] Working principle: the material to be crushed enters from the upper end of the feeding shell 10 through the feeding port 12, and is crushed by the crushing roller 9. After crushing, metal fragments exist in the crushed material. When the crushed material falls on the surface of the conveying belt 14, it is conveyed by the conveying belt 14. During the conveying process, the sliding frame 4 drives the conveying belt 14 to vibrate up and down. When the conveying belt 14 moves up and down, the material will move up and down on the surface of the conveying belt 14. Due to the heavy weight of the metal fragments, the heavy metal fragments will fall into the backflow tank during the reciprocating movement of the material. The conveying direction of the backflow belt 142 in the backflow tank is opposite to the conveying direction of the conveying belt 14. The backflow belt 142 will convey the metal fragments to the position opposite to the conveying direction of the conveying belt 14. Therefore, the crushed plastic fragments and metal fragments can be collected separately.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present application can still be modified or replaced equivalently without departing from the spirit and scope of the present application. Any modification or partial replacement thereof should be covered in the scope of the claims of the present application.

Claims

1. A waste plastic piece recycling device comprising a crushing device capable of crushing waste plastics and a screening device, the discharge port of the crushing device being arranged above the screening device, characterized in that, The screening device comprises: A conveying belt (14) is provided with a plurality of backflow grooves arranged along the conveying direction of the conveying belt (14), and each of the backflow grooves is provided with a backflow belt (142) inside, and the conveying direction of the backflow belt (142) is opposite to the conveying direction of the conveying belt (14); A sliding frame (4) is mounted inside a fixed frame (1), and the conveying belt (14) is mounted inside the sliding frame (4), and the sliding frame (4) can reciprocate up and down inside the fixed frame (1); A plurality of abutting wheels (5) are rotatably mounted inside the sliding frame (4), the abutting wheels (5) are in contact with the backflow belt (142), and the abutting wheels (5) can drive the backflow belt (142) to rotate; The conveying belt (14) comprises a supporting belt (143), the surface of the supporting belt (143) is provided with a plurality of convex strips (141), the convex strips (141) are arranged at intervals, the upper surface of the convex strip (141) is convex, the backflow groove is arranged between two adjacent convex strips (141), and the backflow belt (142) is arranged at the bottom of the backflow groove; A connecting rod (18) is rotatably mounted inside the sliding frame (4), the abutting wheels (5) are fixedly sleeved on the connecting rod (18), and a driving device for driving the connecting rod (18) to rotate is fixed on the sliding frame (4); Two driving wheels (6) are rotatably mounted inside the sliding frame (4), the supporting belt (143) is sleeved on the two driving wheels (6), a second motor (16) for driving the driving wheels (6) to rotate is fixed on the sliding frame (4), and a supporting plate (8) is arranged between the two driving wheels (6) and fixed on the sliding frame (4); The number of the connecting rods (18) is two, the connecting rods (18) are rotatably mounted on the two side walls of the sliding frame (4), and a connecting rod (3) is rotatably mounted between any two adjacent abutting wheels (5), the connecting rod (3) penetrates through the bottom of the sliding frame (4) and is rotatably mounted on the fixed frame (1).

2. A waste plastic part recycling device according to claim 1, wherein, The fixed frame (1) is provided with a groove with an upper opening, the two side walls of the groove are provided with a spacing space (19) opening towards the bottom, the sliding frame (4) is in a U shape, and the two side plates of the sliding frame (4) extend into the spacing space (19).

3. The apparatus for recycling waste plastic pieces as claimed in claim 1 wherein, The inside of the fixed frame (1) is provided with a first discharge port (2) and a second discharge port (13), and the first discharge port (2) and the second discharge port (13) are arranged at the two ends of the conveying belt (14).

4. The apparatus for recycling waste plastic pieces as claimed in claim 1 wherein, The crushing device comprises an inlet shell (10), the inlet shell (10) is fixed above the fixed frame (1), two crushing rollers (9) are rotatably mounted inside the inlet shell (10), and a driving device for driving the crushing rollers (9) to rotate is fixed on the inlet shell (10).

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