A pretreatment device for PE water supply pipe production

Abstract

The utility model relates to PE water supply pipe processing technical field especially, a kind of pretreatment device for PE water supply pipe production, including mounting frame, the lower part of mounting frame is provided with water tank, the top left side of mounting frame is provided with the screening component for carrying out initial screening to plastic particle, the upper part of mounting frame is provided with processing box, cleaning assembly that can be set on the mounting frame to the plastic particle in the processing box is cleaned.This device is set by screening component with vibrator, after plastic particle is poured into screening box, vibrator can drive screening box to separate large block impurity quickly, avoid hard impurity such as stone, metal block into subsequent link from source, both protect the rotating shaft, swing arc plate and other components in cleaning assembly from being scratched, reduce equipment maintenance cost, also prevent the particle breakage caused by hard impurity and particle collision, guarantee raw material integrity.

Description

Technical Field

[0001] This utility model relates to the field of PE water supply pipe processing technology, and in particular to a pretreatment device for the production of PE water supply pipes. Background Technology

[0002] In the production of PE water supply pipes and automotive pipes, the cleanliness of the raw plastic granules directly determines the product quality. Dust, oil, and impurities such as stones and metal pieces adhering to the surface of the granules can lead to pinholes, delamination, and surface defects in the subsequently extruded pipes. This results in pipes that fail to meet the pressure resistance, sealing, and hygiene requirements of water supply pipes, as well as the structural strength and appearance precision standards of automotive pipes. However, the current industry has significant shortcomings in the pretreatment of these granules: in most production scenarios, there is a lack of targeted isolation of large impurities before cleaning, and unscreened granules are directly fed into the cleaning device. This causes hard impurities such as stones and metal pieces to not only scratch the conveying components of the cleaning equipment but also repeatedly collide with the granules during the cleaning process, causing granule breakage. Even in some scenarios where large impurities are manually sorted, there are problems of low efficiency and incomplete sorting, with residual impurities still entering the cleaning process with the granules, affecting the cleaning effect. Meanwhile, the collection and drying of the washed particles are disconnected from the transportation process. The washed particles need to be manually shoveled to the drying equipment, which can easily cause the particles to clump due to residual moisture and cause secondary pollution during the transportation process. In addition, the independent collection, drying and transportation steps are time-consuming and cannot be adapted to the continuous production rhythm.

[0003] Therefore, it is necessary to design a pretreatment device for PE water supply pipe production that can isolate large impurities before cleaning, collect them directly after cleaning, and continuously dry and transport them, so as to solve the core pain points of current process disconnection, incomplete impurity treatment, and low production efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a pretreatment device for the production of PE water supply pipes.

[0005] A pretreatment device for PE water supply pipe production includes an installation frame, a water tank, a screening component, a treatment box, a cleaning component, a rinsing component, a discharge hopper, a cylinder, a baffle plate, a conveying component, a drainage component, and a heater. The water tank is located at the bottom of the installation frame. A screening component for initial screening of plastic granules is located on the top left side of the installation frame. A treatment box is located at the top of the installation frame. A cleaning component for cleaning the plastic granules in the treatment box is located on the installation frame. A rinsing component for rinsing the plastic granules in the treatment box is located between the installation frame and the treatment box. A discharge hopper is located on the right side of the installation frame. Cylinders are symmetrically arranged on the top right side of the installation frame. A baffle plate is located between the extension rods of the cylinders and contacts the right side wall of the treatment box. Water-permeable holes are spaced apart on the baffle plate. A conveying component is located on the right side of the installation frame. The inlet of the conveying component is located directly below the discharge hopper. A drainage component is located on the bottom left side of the conveying component for collecting and treating the water carried by the plastic granules in the conveying component. A heater for drying the processed plastic granules is located on the conveying component.

[0006] Furthermore, the screening component includes a slide rail, a screening box, a box door, and a vibrator. The slide rail is symmetrically arranged on the top left side of the mounting frame. The bottom of the screening box slides in a sliding manner with the slide rail. The box door is rotatably arranged on the rear side of the screening box. The vibrator is installed on the side wall of the screening box.

[0007] Furthermore, the cleaning assembly includes bearing housings, a rotating shaft, a swing arc plate, a servo motor, a first sprocket, and a first chain. Bearing housings are spaced apart at the front and rear of the top of the mounting frame. A rotating shaft is positioned between the closely spaced bearing housings. A swing arc plate with through holes is mounted on the rotating shaft. A servo motor is positioned at the front left of the mounting frame. A first sprocket is mounted on the front end of the right rotating shaft and on the output shaft of the servo motor. Two first sprockets are mounted on the middle rotating shaft and the left rotating shaft. A first chain is mounted between the first sprocket of the servo motor and the first sprocket of the left rotating shaft. A first chain is mounted between the first sprocket on the middle rotating shaft and the other first sprocket on the left rotating shaft. A first chain is mounted between the first sprocket on the right rotating shaft and the other first sprocket on the middle rotating shaft.

[0008] Furthermore, the rinsing assembly includes a fixing plate, a water pump, a strip nozzle, an outlet pipe, and an inlet pipe. The fixing plate is located on the lower left side of the mounting bracket, and the water pump is mounted on the fixing plate. The strip nozzle is embedded in the upper left side wall of the treatment tank. The outlet of the water pump is connected to the outlet pipe, which is connected to the strip nozzle. The inlet of the water pump is connected to the water tank through the inlet pipe.

[0009] Furthermore, the conveying assembly includes a conveying channel, a spiral conveying roller, a rotary motor, a second sprocket, and a second chain. The spiral conveying roller is rotatably installed inside the conveying channel. A rotary motor is installed on the right side of the conveying channel. A second sprocket is installed on both the output shaft of the rotary motor and the right end of the spiral conveying roller. A second chain is installed between the two second sprockets.

[0010] Furthermore, the drainage assembly includes a water collection hopper and a valve. There are spaced-apart round holes on the lower left side of the conveying channel. A water collection hopper is provided on the lower left side of the conveying channel. A valve is provided on the outlet pipe on the left side of the water collection hopper. Beneficial effects

[0011] 1. This device, through the installation of a screening assembly with a vibrator, allows large impurities to be quickly separated after plastic granules are poured into the screening box. This prevents hard impurities such as stones and metal pieces from entering subsequent stages, protecting components like the rotating shaft and swing plate in the cleaning assembly from scratches and reducing equipment maintenance costs. It also prevents particle breakage caused by collisions between hard impurities and granules, ensuring the integrity of the raw materials. Furthermore, compared to manual sorting, vibration screening is more efficient and isolates impurities more thoroughly, completely solving the problem of residual impurities affecting the cleaning effect. This lays a good foundation for subsequent cleaning processes, ensuring that the cleaned granules meet the requirements for pressure resistance, sealing, and hygiene safety of water supply pipes.

[0012] 2. After washing, the granules can fall directly into the conveying assembly through the discharge hopper without manual intervention, avoiding secondary pollution and clumping problems. The spiral conveyor roller in the conveying assembly continuously transports the granules, and together with the heater on the conveying assembly, drying can be completed simultaneously during the transmission process, realizing a continuous operation of washing, collecting, drying, and conveying. At the same time, the drainage component at the bottom of the conveying assembly can collect the moisture carried by the granules in a timely manner, further ensuring the drying effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0015] Figure 3 This is a three-dimensional structural diagram of the conveying component of this utility model.

[0016] Figure 4 This is a schematic diagram of the installation structure of the heater of this utility model.

[0017] Labels in the diagram: 1: Mounting frame, 2: Water tank, 3: Screening assembly, 31: Slide rail, 32: Screening box, 33: Box door, 34: Vibrator, 4: Processing box, 5: Cleaning assembly, 51: Bearing seat, 52: Rotating shaft, 53: Swinging arc plate, 54: Servo motor, 55: First sprocket, 56: First chain, 6: Flushing assembly, 61: Fixing plate, 62: Water pump, 63: Strip nozzle, 64: Liquid outlet pipe, 65: Liquid inlet pipe, 7: Discharge hopper, 8: Cylinder, 9: Baffle plate, 10: Conveying assembly, 101: Conveying channel, 102: Spiral conveyor roller, 103: Rotary motor, 104: Second sprocket, 105: Second chain, 11: Drainage assembly, 111: Water collection hopper, 112: Valve, 113: Round hole, 12: Heater. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0019] Example: Figures 1-4As shown, a pretreatment device for PE water supply pipe production includes a mounting frame 1, a water tank 2, a screening assembly 3, a treatment box 4, a cleaning assembly 5, a rinsing assembly 6, a discharge hopper 7, a cylinder 8, a baffle plate 9, a conveying assembly 10, a drainage assembly 11, and a heater 12. The water tank 2 is located at the lower part of the mounting frame 1. A screening assembly 3 for initial screening of plastic granules is located on the top left side of the mounting frame 1. The screening assembly 3 includes a slide rail 31, a screening box 32, a box door 33, and a vibrator 34. The slide rails 31 are symmetrically arranged on the top left side of the mounting frame 1. The bottom of the screening box 32 slides in conjunction with the slide rails 31 via a slider. A box door 33 is rotatably installed on the rear side of the screening box 32. A vibrator 34 is installed on the side wall of the screening box 32. The upper part of the mounting frame 1... A processing box 4 is provided, and a cleaning component 5 for cleaning the plastic particles inside the processing box 4 is provided on the mounting frame 1. The cleaning component 5 includes a bearing seat 51, a rotating shaft 52, a swing arc plate 53, a servo motor 54, a first sprocket 55, and a first chain 56. Bearing seats 51 are arranged at intervals at the top front and back of the mounting frame 1. A rotating shaft 52 is arranged between the front and back bearing seats 51. A swing arc plate 53 with a through hole is provided on the rotating shaft 52. A servo motor 54 is arranged at the front left side of the mounting frame 1. A first sprocket 55 is provided on the front end of the right rotating shaft 52 and on the output shaft of the servo motor 54. Two first sprockets 55 are provided on the middle rotating shaft 52 and the left rotating shaft 52. The first sprocket 55 of the servo motor 54 is connected to the left chain. A first chain 56 is provided between the first sprockets 55 of the side shaft 52, and a first chain 56 is provided between the first sprocket 55 on the middle side shaft 52 and another first sprocket 55 on the left side shaft 52. A first chain 56 is also provided between the first sprocket 55 on the right side shaft 52 and another first sprocket 55 on the middle side shaft 52. A rinsing assembly 6 is provided between the mounting frame 1 and the processing box 4 to rinse the plastic particles inside the processing box 4. The rinsing assembly 6 includes a fixing plate 61, a water pump 62, a strip nozzle 63, an outlet pipe 64, and an inlet pipe 65. A fixing plate 61 is provided on the lower left side of the mounting frame 1, and a water pump 62 is provided on the fixing plate 61. A strip nozzle 63 is embedded in the upper left side wall of the processing box 4. The outlet pipe 64 of the water pump 62... The liquid outlet is connected to the liquid outlet pipe 64, which is connected to the strip nozzle 63. The liquid inlet of the water pump 62 is connected to the water tank 2 through the liquid inlet pipe 65. A discharge hopper 7 is provided on the right side of the mounting frame 1. Cylinders 8 are symmetrically arranged on the top right side of the mounting frame 1. A baffle plate 9 is provided between the telescopic rods of the cylinders 8. The baffle plate 9 contacts and cooperates with the right side wall of the processing box 4. Water permeable holes are spaced apart on the baffle plate 9. A conveying assembly 10 is provided on the right side of the mounting frame 1. The inlet of the conveying assembly 10 is located directly below the discharge hopper 7. A drainage assembly 11 is provided on the bottom left side of the conveying assembly 10. The drainage assembly 11 is used to collect and treat the water carried by the plastic particles in the conveying assembly 10. A heater 12 is provided on the conveying assembly 10 to dry the processed plastic particles.

[0020] like Figure 1 and Figure 3 As shown, the conveying assembly 10 includes a conveying channel 101, a spiral conveying roller 102, a rotary motor 103, a second sprocket 104, and a second chain 105. The conveying channel 101 is inclined through the frame. The inlet of the conveying channel 101 is located directly below the outlet hopper 7, and the outlet of the conveying channel 101 is located on the lower right side. The spiral conveying roller 102 is rotatably arranged inside the conveying channel 101. The rotary motor 103 is arranged on the right side of the conveying channel 101. The output shaft of the rotary motor 103 and the right end of the spiral conveying roller 102 are both provided with second sprockets 104. A second chain 105 is arranged between the two second sprockets 104.

[0021] like Figure 1 and Figure 3 The drainage component 11 includes a water collection hopper 111 and a valve 112. The lower left side of the conveying channel 101 has a spaced-apart round hole 113. The lower left side of the conveying channel 101 is provided with a water collection hopper 111. The outlet pipe on the left side of the water collection hopper 111 is provided with a valve 112.

[0022] When pre-treatment of plastic granules is required, the operator first closes the valve 112 on the lower outlet pipe of the treatment tank 4, and then starts the water pump 62. The water pump 62 sprays water from the water tank 2 into the treatment tank 4 through the inlet pipe 65, the outlet pipe 64, and the strip nozzle 63, causing the water level in the treatment tank 4 to rise. The operator then pours the plastic granules into the screening box 32. The vibrator 34 works to drive the screening box 32 to vibrate, and the plastic granules fall into the treatment tank 4. Large impurities are isolated. The servo motor 54 is started, and the servo motor 54 drives the first sprocket 55 to rotate. Through the first chain 56, it drives the other first sprockets 55 to rotate. The rotating shaft 52 drives the swing arc plate 53 to rotate, thereby swinging and cleaning the plastic granules. After cleaning, the control cylinder 8 shortens, causing the baffle plate 9 to move to the right and disengage from the right side wall of the treatment tank 4. Then, the strip nozzle 63 sprays water, causing the plastic granules to move to the right. Through the rotating swing arc plate 53, the water flows into the discharge hopper 7, and the plastic granules fall into the conveying channel 101. Water flows into the water collection hopper 111 through the circular hole 113 of the conveying channel 101. The rotary motor 103 is started, driving the second sprocket 104 to rotate. The second sprocket 104 and the second chain 105 work together to drive the spiral conveyor roller 102 to rotate. The spiral conveyor roller 102 then carries the cleaned plastic granules to the right. The heater 12 dries the plastic granules in the conveying channel 101, and they finally fall into the collection frame through the discharge port. Water in the water collection hopper 111 can be discharged by opening the valve 112. This device has a simple structure and can quickly complete the cleaning process of plastic granules.

[0023] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A pretreatment device for the production of PE water supply pipes, characterized in that: The system includes a mounting frame (1), a water tank (2) at the bottom of the mounting frame (1), a screening component (3) for initial screening of plastic particles at the top left of the mounting frame (1), a processing box (4) at the top of the mounting frame (1), a cleaning component (5) for cleaning the plastic particles in the processing box (4) on the mounting frame (1), a rinsing component (6) for rinsing the plastic particles in the processing box (4) between the mounting frame (1) and the processing box (4), a discharge hopper (7) on the right side of the mounting frame (1), and cylinders symmetrically arranged on the top right side of the mounting frame (1). 8), a baffle plate (9) is provided between the telescopic rods of the cylinder (8). The baffle plate (9) is in contact with the right side wall of the processing box (4). Water-permeable holes are spaced apart on the baffle plate (9). A conveying assembly (10) is provided on the right side of the mounting frame (1). The inlet of the conveying assembly (10) is located directly below the discharge hopper (7). A drainage assembly (11) is provided on the bottom left side of the conveying assembly (10). The drainage assembly (11) is used to collect and treat the water carried by the plastic particles in the conveying assembly (10). A heater (12) is provided on the conveying assembly (10) to dry the processed plastic particles.

2. The pretreatment device for PE water supply pipe production according to claim 1, characterized in that: The screening component (3) includes a slide rail (31). The slide rail (31) is symmetrically arranged on the top left side of the mounting bracket (1). The slide rail (31) is connected to a screening box (32). The bottom of the screening box (32) is slidably engaged with the slide rail (31) by a slider. The screening box (32) is rotatably provided with a door (33) on the rear side. A vibrator (34) is installed on the side wall of the screening box (32).

3. The pretreatment device for PE water supply pipe production according to claim 2, characterized in that: The cleaning assembly (5) includes a bearing housing (51). The bearing housing (51) is arranged at intervals on the top of the mounting frame (1). A rotating shaft (52) is arranged between the bearing housings (51) that are close to each other. A swing arc plate (53) with a through hole is arranged on the rotating shaft (52). A servo motor (54) is arranged at the front left side of the mounting frame (1). A first sprocket (55) is arranged on the front end of the rotating shaft (52) on the right side and on the output shaft of the servo motor (54). The rotating shaft (52) on the middle side and the rotating shaft (52) on the left side are also provided with a first sprocket (55). Each is provided with two first sprockets (55). A first chain (56) is provided between the first sprocket (55) of the servo motor (54) and the first sprocket (55) of the left rotating shaft (52). A first chain (56) is provided between the first sprocket (55) on the middle rotating shaft (52) and the other first sprocket (55) of the left rotating shaft (52). A first chain (56) is provided between the first sprocket (55) of the right rotating shaft (52) and the other first sprocket (55) of the middle rotating shaft (52).

4. The pretreatment device for PE water supply pipe production according to claim 3, characterized in that: The rinsing assembly (6) includes a fixing plate (61). The fixing plate (61) is provided on the lower left side of the mounting bracket (1). A water pump (62) is provided on the fixing plate (61). A strip nozzle (63) is embedded in the upper left side wall of the treatment box (4). The outlet of the water pump (62) is connected to an outlet pipe (64). The outlet pipe (64) is connected to the strip nozzle (63). The inlet of the water pump (62) is connected to the water tank (2) through an inlet pipe (65).

5. A pretreatment device for PE water supply pipe production according to claim 4, characterized in that: The conveying assembly (10) includes a conveying channel (101), a spiral conveying roller (102) is rotatably arranged in the conveying channel (101), a rotary motor (103) is arranged on the right side of the conveying channel (101), and a second sprocket (104) is arranged on the output shaft of the rotary motor (103) and the right end of the spiral conveying roller (102), and a second chain (105) is arranged between the two second sprockets (104).

6. A pretreatment device for PE water supply pipe production according to claim 5, characterized in that: The drainage assembly (11) includes a water collection hopper (111), and a circular hole (113) is spaced apart on the lower left side of the conveying channel (101). The water collection hopper (111) is provided on the lower left side of the conveying channel (101), and a valve (112) is provided on the water outlet pipe on the left side of the water collection hopper (111).

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