Vibrating screen with cleaning function for PET plastic bottle

Abstract

This utility model relates to the field of vibrating screen technology, specifically to a vibrating screen for PET plastic bottles with a cleaning function. It includes a fixed base, a load-bearing plate, a vibrating frame, a conveyor belt, and a discharge plate. The load-bearing plate is positioned above the fixed base, and the vibrating frame is positioned on top of the load-bearing plate. When the working motor is started, it drives the second bevel gear and the first bevel gear to rotate. The rotation of the first bevel gear drives the transmission rod and the cam to rotate. The cam contacts the bottom of the load-bearing plate, allowing it to rise and fall, thus cleaning debris from the internal holes of the conveyor belt. A fixed disc is mounted to the unblocking roller under the action of bearings. Then, the screw is manually rotated; the screw thread passes through the fixed disc, allowing the fixed disc and the sliding plate to slide inside the rectangular hole. Adjusting the height of the fixed disc allows for raising and lowering of the unblocking roller, facilitating control of the conveyor belt tension and easy cleaning of debris from the conveyor belt's internal holes.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, specifically a vibrating screen for PET plastic bottles with cleaning function. Background Technology

[0002] A vibrating screen operates by utilizing the reciprocating rotary vibration generated by a vibrator. The upper rotating weight of the vibrator causes the screen surface to produce planar rotary vibration, while the lower rotating weight causes it to produce conical rotary vibration. The combined effect of these two forces results in a complex rotary vibration of the screen surface. Its vibration trajectory is a complex spatial curve. This curve projects as a circle on the horizontal plane and as an ellipse on the vertical plane. Adjusting the excitation force of the upper and lower rotating weights changes the amplitude. Adjusting the spatial phase angle of the upper and lower weights alters the shape of the screen surface's motion trajectory and thus the trajectory of the material on the screen surface.

[0003] Chinese Patent Publication No. CN221133154U discloses a vibrating screen plate with automatic cleaning function, including a housing. The screen plate is installed at the bottom of the housing. A horizontal tube is slidably installed at one end of the housing. A cleaning tube is fixedly connected to one side of the horizontal tube. A nozzle is fixedly connected to one side of the cleaning tube. The cleaning tube is slidably connected to the other end of the housing through a support tube. A ventilation structure is connected to the other side of the horizontal tube. A switching structure is provided on one side of the ventilation structure. The switching structure is connected to one side of the outer surface of the housing. The ventilation structure includes a connecting tube and a fixing tube. The connecting tube is slidably installed inside the fixing tube through a sealing ring. One end of the fixing tube is connected to an air pump. This patent connects the screen plate through the housing and, by installing the ventilation structure and the switching structure, allows for synchronous adjustment of ventilation and also allows for switching modes for staggered blowing, which is beneficial for control, convenient for blowing and cleaning, and highly efficient and stable.

[0004] The common problem with the vibrating screen in the aforementioned patent and similar products on the market is that it is inconvenient to clean the debris inside the aperture of the vibrating screen, resulting in incomplete cleaning of the vibrating screen. Furthermore, it is impossible to handle small debris after cleaning, which can easily lead to blockage. Utility Model Content

[0005] To address the aforementioned issues, a vibrating screen for PET plastic bottles with a cleaning function is provided. The fixed disc is rotatably mounted to the unblocking roller under the action of bearings. Then, the screw thread is manually rotated, and the screw thread passes through the fixed disc, allowing the fixed disc and sliding plate to slide inside a rectangular hole. The height of the unblocking roller can be adjusted by changing the height of the fixed disc, facilitating control of the conveyor belt tension and convenient cleaning of debris from the conveyor belt's inner hole.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vibrating screen for PET plastic bottles with cleaning function, comprising a fixed base, a load-bearing plate, a vibrating frame, a conveyor belt, and a discharge plate. The load-bearing plate is disposed above the fixed base, the vibrating frame is disposed on top of the load-bearing plate, the conveyor belt is disposed inside the vibrating frame, and the discharge plate is disposed inside the conveyor belt. Above the fixed base are respectively a reciprocating mechanism, a vibration mechanism, a blockage clearing mechanism, and a jetting mechanism.

[0007] Furthermore, the reciprocating mechanism includes a plug rod, which is disposed at the top four corners of the fixed base. The fixed plate is disposed on one side of the load-bearing plate. The fixed plate has a circular hole inside that matches the plug rod. The plug rod and the fixed plate are connected by a return spring.

[0008] Furthermore, the vibration mechanism includes a transmission rod disposed below the load-bearing plate, a cam disposed on the outer side of the transmission rod, a first bevel gear disposed at the input end of the transmission rod, a second bevel gear meshing with one side of the first bevel gear, and a working motor disposed at the input end of the second bevel gear.

[0009] Furthermore, the unblocking mechanism includes a fixed plate, which is disposed inside the conveyor belt. Unblocking rollers are respectively disposed at both ends of the fixed plate, and the unblocking rollers are connected to the fixed plate through bearings. A threaded rod passes through the internal thread of the fixed plate.

[0010] Furthermore, the outer wall of the vibration frame is symmetrically provided with square holes, and the inner wall of the square holes is symmetrically provided with rectangular holes. The inside of the rectangular holes is slidably connected to a sliding plate that contacts the unblocking roller.

[0011] Furthermore, the jetting mechanism includes an air tank symmetrically arranged on the top of the fixed base. A pneumatic rod is slidably installed inside the air tank. A horizontal plate connected to the vibrating frame is provided at the top of the pneumatic rod. An air cylinder is provided inside the conveyor belt. The air tank and the air cylinder are connected by an air pipe. A scraper is provided at the bottom of the air cylinder. An air jet head is provided on one side of the air cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this vibrating screen for PET plastic bottles with cleaning function is reasonable and has the following advantages: (1) Connect the plug rod through the fixed plate, and then connect the return spring with the plug rod and the fixed plate to realize the reciprocating motion of the plug rod. Then start the working motor. When the working motor is working, it drives the second bevel gear and the first bevel gear to rotate. When the first bevel gear rotates, it can drive the transmission rod and the cam to rotate. The cam contacts the bottom of the load-bearing plate, which can realize the lifting and lowering of the cam. It can clean the garbage in the hole of the conveyor belt. The fixed plate is rotated and installed with the cleaning roller under the action of the bearing. By rotating the screw, the fixed plate and the slide can slide inside the rectangular hole. The height of the cleaning roller can be adjusted by adjusting the height of the fixed plate, which is convenient for controlling the tension of the conveyor belt and for cleaning the garbage in the hole of the conveyor belt. (2) The lifting and lowering of the vibrating frame can drive the horizontal plate to move. When the horizontal plate moves, it drives the pneumatic rod to slide inside the air tank. When sliding, the gas can be transported to the inside of the air cylinder through the air pipe. The scraper at the bottom of the air cylinder can clean the garbage on the surface of the conveyor belt. At the same time, the air is treated by the jet nozzle on one side of the air cylinder, making the conveyor belt cleaning function more efficient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the conveyor belt of this utility model; Figure 4 This is a schematic diagram of the connection structure between the gas storage tank and the gas cylinder of this utility model; Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Fixed base; 2. Load-bearing plate; 3. Vibrating frame; 4. Conveyor belt; 5. Reciprocating mechanism; 51. Insert rod; 52. Fixed plate; 6. Vibrating mechanism; 61. Transmission rod; 62. Cam; 63. Second bevel gear; 7. Unblocking mechanism; 71. Fixed plate; 72. Unblocking roller; 73. Screw; 8. Air jet mechanism; 81. Air tank; 82. Pneumatic rod; 83. Air cylinder; 84. Scraper; 9. Rectangular hole; 10. Slide plate; 11. Feed plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please refer to the following: Figures 1 to 5 A vibrating screen for PET plastic bottles with cleaning function includes a fixed base 1, a load-bearing plate 2, a vibrating frame 3, a conveyor belt 4, and a discharge plate 11. The load-bearing plate 2 is located above the fixed base 1, the vibrating frame 3 is located on top of the load-bearing plate 2, the conveyor belt 4 is located inside the vibrating frame 3, and the discharge plate 11 is located inside the conveyor belt 4. A reciprocating mechanism 5, a vibrating mechanism 6, a blockage clearing mechanism 7, and an air jet mechanism 8 are respectively arranged above the fixed base 1.

[0017] Connect the load-bearing plate 2 to the vibrating frame 3, and then connect the fixed seat 1 to the load-bearing plate 2 through the reciprocating mechanism 5. When the vibrating mechanism 6 works, it can drive the conveyor belt 4 to work inside the vibrating frame 3. The vibration of the vibrating mechanism 6 can clean the garbage inside the conveyor belt 4. The garbage that falls off the vibration can be transported under the action of 11 to avoid garbage clogging the bottom of the conveyor belt 4. The garbage that is not cleaned by vibration can be cleaned by the unblocking mechanism 7 and fall above the load-bearing plate 2 for convenient centralized treatment. When the vibrating frame 3 vibrates, it drives the jet mechanism 8 to move. The jet mechanism 8 can blow away the smaller garbage inside the vibrating frame 3, so that the conveyor belt 4 is cleaned more thoroughly.

[0018] like Figure 1 and Figure 2 As shown, the reciprocating mechanism 5 includes a plug rod 51, which is located at the top four corners of the fixed base 1. The fixed plate 52 is located on one side of the load-bearing plate 2. The fixed plate 52 has a round hole inside that matches the plug rod 51. The plug rod 51 and the fixed plate 52 are connected by a return spring.

[0019] By connecting the insertion rod 51 to the fixing plate 52, and then connecting the return spring to the insertion rod 51 and the fixing plate 52, the reciprocating motion of the insertion rod 51 can be realized.

[0020] like Figure 1 and Figure 3 As shown, the vibration mechanism 6 includes a transmission rod 61, which is disposed below the load-bearing plate 2. A cam 62 is disposed on the outer side of the transmission rod 61. A first bevel gear is disposed at the input end of the transmission rod 61. A second bevel gear 63 is meshed with one side of the first bevel gear. A working motor is disposed at the input end of the second bevel gear 63.

[0021] When the working motor is started, it drives the second bevel gear 63 and the first bevel gear to rotate. When the first bevel gear rotates, it drives the transmission rod 61 and the cam 62 to rotate. The cam 62 contacts the bottom of the load-bearing plate 2, which can realize the lifting and lowering of the cam 62.

[0022] like Figure 1 , Figure 3 and Figure 5 As shown, the unblocking mechanism 7 includes a fixed plate 71, which is disposed inside the conveyor belt 4. Unblocking rollers 72 are respectively disposed at both ends of the fixed plate 71. The unblocking rollers 72 and the fixed plate 71 are connected by bearings. A threaded rod 73 passes through the internal thread of the fixed plate 71. Square holes are symmetrically arranged on the outer wall of the vibrating frame 3. Rectangular holes 9 are symmetrically opened on the inner wall of the square holes. A sliding plate 10 that contacts the unblocking rollers 72 is slidably connected inside the rectangular holes 9.

[0023] The fixed plate 71 is rotatably mounted with the unblocking roller 72 under the action of the bearing. By rotating the screw 73, the fixed plate 71 and the slide plate 10 can slide inside the rectangular hole 9. The height of the unblocking roller 72 can be adjusted by adjusting the height of the fixed plate 71, which facilitates the control of the tension of the conveyor belt 4 and the cleaning of the debris inside the conveyor belt 4.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the jet mechanism 8 includes an air tank 81, which is symmetrically arranged on the top of the fixed base 1. A pneumatic rod 82 is slidably installed inside the air tank 81. A horizontal plate connected to the vibrating frame 3 is provided on the top of the pneumatic rod 82. An air cylinder 83 is provided inside the conveyor belt 4. The air tank 81 and the air cylinder 83 are connected by an air pipe. A scraper 84 is provided at the bottom of the air cylinder 83. A jet head is provided on one side of the air cylinder 83.

[0025] The lifting and lowering of the vibrating frame 3 drives the horizontal plate to move. When the horizontal plate moves, it drives the pneumatic rod 82 to slide inside the air tank 81. During the sliding, gas is delivered to the inside of the air cylinder 83 through the air pipe. The scraper 84 at the bottom of the air cylinder 83 can clean the garbage on the surface of the conveyor belt 4. At the same time, the cleaning is also handled by the jet nozzle on one side of the air cylinder 83, making the cleaning function of the conveyor belt 4 more efficient.

[0026] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A vibrating screen for PET plastic bottles with cleaning function, comprising a fixed base (1), a load-bearing plate (2), a vibrating frame (3), a conveyor belt (4), and a discharge plate (11), wherein the load-bearing plate (2) is disposed above the fixed base (1), the vibrating frame (3) is disposed on top of the load-bearing plate (2), the conveyor belt (4) is disposed inside the vibrating frame (3), and the discharge plate (11) is disposed inside the conveyor belt (4); characterized in that, Above the fixed base (1) are respectively a reciprocating mechanism (5), a vibration mechanism (6), a blockage clearing mechanism (7) and an air jet mechanism (8). The reciprocating mechanism (5) includes a fixed plate (52), the blockage clearing mechanism (7) includes a blockage clearing roller (72), and the air jet mechanism (8) includes an air cylinder (83) and a scraper (84) disposed at the bottom of the air cylinder (83).

2. The vibrating screen for PET plastic bottles with cleaning function according to claim 1, characterized in that: The reciprocating mechanism (5) includes a plug rod (51), which is located at the top four corners of the fixed base (1). The fixed plate (52) is located on one side of the load-bearing plate (2). The fixed plate (52) has a round hole inside that matches the plug rod (51). The plug rod (51) and the fixed plate (52) are connected by a return spring.

3. The vibrating screen for PET plastic bottles with cleaning function according to claim 1, characterized in that: The vibration mechanism (6) includes a transmission rod (61), which is located below the load-bearing plate (2). A cam (62) is provided on the outer side of the transmission rod (61). A first bevel gear is provided at the input end of the transmission rod (61). A second bevel gear (63) is meshed with one side of the first bevel gear. A working motor is provided at the input end of the second bevel gear (63).

4. A vibrating screen for PET plastic bottles with cleaning function according to claim 1, characterized in that: The unblocking mechanism (7) includes a fixed plate (71), which is located inside the conveyor belt (4). Unblocking rollers (72) are respectively provided at both ends of the fixed plate (71). The unblocking rollers (72) and the fixed plate (71) are connected by bearings. The internal threads of the fixed plate (71) are threaded through a threaded rod (73).

5. A vibrating screen for PET plastic bottles with cleaning function according to claim 4, characterized in that: The outer wall of the vibrating frame (3) is symmetrically provided with square holes, and the inner wall of the square holes is symmetrically provided with rectangular holes (9). The inside of the rectangular holes (9) is slidably connected with a sliding plate (10) that contacts the unblocking roller (72).

6. A vibrating screen for PET plastic bottles with cleaning function according to claim 1, characterized in that: The jetting mechanism (8) includes an air tank (81), which is symmetrically arranged on the top of the fixed base (1). A pneumatic rod (82) is slidably installed inside the air tank (81). A horizontal plate connected to the vibrating frame (3) is provided on the top of the pneumatic rod (82). An air cylinder (83) is provided inside the conveyor belt (4). The air tank (81) and the air cylinder (83) are connected by an air pipe. A scraper (84) is provided at the bottom of the air cylinder (83). A jetting head is provided on one side of the air cylinder (83).

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