Polyethylene pipe processing coating apparatus

By using a crown gear and nozzle structure in the polyethylene pipe coating device, uniform coating of the outer surface of the polyethylene pipe and effective collection of paint are achieved, solving the problems of uneven coating and paint waste, and improving product quality and environmental performance.

CN224542072UActive Publication Date: 2026-07-24TIBET SANMU PLASTIC PRODUCTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIBET SANMU PLASTIC PRODUCTS CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the traditional polyethylene pipe coating process, the coating is uneven and the paint is not collected in time, which affects product quality and causes environmental pollution.

Method used

A coating device with a crown gear and a nozzle is used. The nozzle is rotated synchronously by a drive component to achieve uniform coating. Excess coating is collected by a limit baffle and a spiral propulsion shaft for reuse.

Benefits of technology

This method achieves uniform coating on the outer surface of polyethylene pipes, improves product quality, increases coating utilization, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224542072U_ABST
    Figure CN224542072U_ABST
Patent Text Reader

Abstract

The utility model discloses a polyethylene pipe processing coating device relates to polyethylene pipe processing technical field, and the utility model discloses a processing box, the upper portion one side of processing box is provided with processing window, and the upper portion of processing box is installed with pipeline fixed clamp, and the top middle part fixed mounting of processing box has the paint storage box, and the top one side of processing box is installed with no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of polyethylene pipe processing technology, specifically a polyethylene pipe processing coating device. Background Technology

[0002] Polyethylene is a highly crystalline, non-polar thermoplastic resin. In its original state, polyethylene is milky white and somewhat translucent in thin sections. Polyethylene has excellent resistance to most household and industrial chemicals. Polyethylene pipes are also known as high-density polyethylene. In urban water supply systems, buried polyethylene water pipes typically require an anti-corrosion coating on their outer surface to improve corrosion resistance, UV resistance, and reduce surface friction coefficient. This facilitates pipe movement during installation and extends the pipe's service life in outdoor environments. However, traditional spraying methods for polyethylene pipes involve a single method of moving and rotating the nozzle, making it difficult to ensure uniform coating of pipes of different specifications. This results in inconsistent coating thickness, affecting product quality and lifespan. Furthermore, the paint that falls off during coating is not properly collected, leading to paint waste and potential environmental pollution. Utility Model Content

[0003] To address the problem of uneven coating and failure to collect waste materials in a timely manner in traditional pipe coating processes, the purpose of this invention is to provide a polyethylene pipe processing and coating device.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a polyethylene pipe processing and coating device, comprising a processing box, a processing window on one side of the upper part of the processing box, a pipe fixing clamp installed on the upper part of the processing box, a paint storage box fixedly installed at the middle of the top of the processing box, a second paint delivery pump installed on one side of the top of the processing box, the input end of the second paint delivery pump fixedly installed on the lower side of the paint storage box, a transverse screw rotatably installed on the upper part of the processing box, a drive assembly provided at one end of the transverse screw, a moving block threadedly installed on the upper part of the transverse screw, a rotating shaft rotatably installed at the bottom end of the moving block, an outer shell provided at the lower part of the rotating shaft, the pipe fixing clamp located in the middle of the outer shell, and a support frame fixedly installed at the top of the outer shell; A first crown gear is rotatably mounted on the inner upper surface of the outer casing. Second crown gears are rotatably mounted on both sides of the middle of the outer casing. Both second crown gears are meshed with the first crown gear. Multiple nozzles arranged in a ring array are fixedly mounted on the outer sides of the two second crown gears. The multiple nozzles are connected to the output end of the second paint delivery pump through hoses. The top of the first crown gear is fixedly mounted on the bottom end of the rotating shaft. A first gear is fixedly mounted on the upper part of the rotating shaft. A toothed plate is fixedly mounted on the inner upper surface of the processing box. The first gear and the toothed plate are meshed with each other.

[0005] Preferably, two symmetrically distributed limiting baffles are fixedly installed at the lower part of the processing box, and filter grooves are slidably engaged on the opposite sides of the two limiting baffles. A spiral propulsion shaft is rotatably installed at the lower part of the processing box, and a collection pool is opened on one side of the lower part of the processing box.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This application uses a drive motor to rotate a transverse screw, which in turn causes a moving block to move a rotating shaft and a housing. Since the first gear meshes with the toothed plate, it drives the first crown gear and the second crown gear to rotate. This causes the nozzles to rotate synchronously during the movement, and the two sets of nozzles rotate in opposite directions. This allows for a uniform coating of the outer surface of the polyethylene pipe, effectively solving the problem of uneven coating in existing devices and greatly improving product quality.

[0007] 2. In this application, excess paint is guided to the filter tank for filtration by a limiting baffle, and then collected in a collection pool by a spiral propulsion shaft. After being extracted by the No. 1 paint delivery pump, it can be transported through a hose for centralized collection or returned to the paint storage box for reuse, which improves paint utilization, reduces costs and reduces environmental pollution. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0011] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0012] Figure 4This is a schematic diagram of the connection structure between the outer shell and the support frame in this utility model.

[0013] In the diagram: 1. Processing box; 11. Human-machine control platform; 2. Pipe fixing clamp; 21. Processing window; 3. No. 1 paint delivery pump; 31. Screw propulsion shaft; 32. Collection tank; 4. Paint storage tank; 41. No. 2 paint delivery pump; 42. Drive motor; 43. Horizontal screw; 44. Moving block; 441. Moving groove; 45. Rotating shaft; 46. No. 1 gear; 461. Gear plate; 47. Support frame; 471. Limiting rod; 48. Outer shell; 481. No. 1 crown gear; 482. No. 2 crown gear; 49. Nozzle; 5. Limiting baffle; 51. Filter tank; 52. Limiting block; 53. Limiting groove. Detailed Implementation

[0014] 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.

[0015] Example: Figure 1-4 As shown, this utility model provides a polyethylene pipe processing and coating device, including a processing box 1. A processing window 21 is provided on one side of the upper part of the processing box 1. A pipe fixing clamp 2 is installed on the upper part of the processing box 1. A paint storage tank 4 is fixedly installed in the middle of the top of the processing box 1. A second paint delivery pump 41 is installed on one side of the top of the processing box 1. The input end of the second paint delivery pump 41 is fixedly installed on the lower side of the paint storage tank 4. A transverse screw 43 is rotatably installed on the upper part of the processing box 1. A drive component is provided at one end of the transverse screw 43. A moving block 44 is threaded on the upper part of the transverse screw 43. A rotating shaft 45 is rotatably installed at the bottom end of the moving block 44. A housing 48 is provided at the lower part of the rotating shaft 45. The pipe fixing clamp 2 is located in the middle of the housing 48. A support frame 47 is fixedly installed on the top of the housing 48. A first crown gear 481 is rotatably mounted on the inner upper surface of the outer casing 48. Second crown gears 482 are rotatably mounted on both sides of the middle part of the outer casing 48. Both second crown gears 482 are meshed with the first crown gear 481. Multiple nozzles 49 arranged in a ring array are fixedly mounted on the outer sides of the two second crown gears 482. The multiple nozzles 49 are connected to the output end of the second paint delivery pump 41 through hoses. The top of the first crown gear 481 is fixedly mounted on the bottom end of the rotating shaft 45. A first gear 46 is fixedly mounted on the upper part of the rotating shaft 45. A toothed plate 461 is fixedly mounted on the inner upper surface of the processing box 1. The first gear 46 and the toothed plate 461 are meshed with each other.

[0016] Two symmetrically distributed limiting baffles 5 are fixedly installed at the lower part of the processing box 1. Filter grooves 51 are slidably clamped on the opposite sides of the two limiting baffles 5. A spiral propulsion shaft 31 is rotatably installed at the lower part of the processing box 1. A collection pool 32 is opened on one side of the lower part of the processing box 1.

[0017] The drive assembly includes a drive motor 42, which is fixedly installed on the upper side of the processing box 1. One end of the transverse screw 43 is fixedly installed on the drive end of the drive motor 42. By setting the drive motor 42, the transverse screw 43 can be rotated under the drive of the drive motor 42.

[0018] The upper part of the processing box 1 is provided with a moving groove 441, and the moving block 44 is slidably locked inside the moving groove 441. By providing the moving groove 441, the rotation of the moving block 44 can be prevented from being driven to rotate by the rotation of the transverse screw 43.

[0019] Two symmetrically distributed limiting rods 471 are fixedly installed on the upper part of the processing box 1. The upper part of the support frame 47 is slidably locked on the outer surface of the limiting rods 471. By setting the limiting rods 471, the support frame 47 can be slidably locked on the outer surface of the limiting rods 471, thereby supporting and limiting the outer shell 48 and ensuring its stable movement.

[0020] Limiting grooves 53 are provided in the middle of the opposite sides of the two limiting baffles 5. Limiting blocks 52 are fixedly installed on both sides of the filter tank 51. The two limiting blocks 52 are slidably locked inside the limiting grooves 53. By setting the limiting blocks 52, the filter tank 51 can be easily slidably installed between the two limiting baffles 5 to filter waste. When cleaning, the filter tank 51 can be pulled out directly from one side.

[0021] A paint delivery pump 3 is fixedly installed on one side of the lower part of the processing box 1. By setting up the paint delivery pump 3, the paint in the collection tank 32 can be extracted and collected centrally through the hose or put into the paint storage box 4 for reuse.

[0022] A human-machine control platform 11 is installed on the upper side of the processing box 1. By setting up the human-machine control platform 11, the operator can set relevant parameters to control the speed of the drive motor 42, which indirectly controls the lateral movement speed of the nozzle 49, the start and stop of the spiral propulsion shaft 31, the flow rate of the second paint delivery pump 41 and thus the paint supply, and the pipe fixing clamp 2, so as to meet the coating requirements of polyethylene pipes of different specifications and realize automated and precise coating processing operations.

[0023] Working principle: In actual use, the polyethylene pipe to be coated is placed into the upper part of the pipe fixing clamp 2 in the processing box 1 through the processing window 21. The operator uses the human-machine control platform 11 to clamp and fix the polyethylene pipe. The human-machine control platform 11 controls the drive motor 42 and the No. 2 paint delivery pump 41. Under the drive of the drive motor 42, the transverse screw 43 is rotated, which causes the moving block 44, which is threaded on the outer surface of the transverse screw 43, to slide inside the moving groove 441. This means that the rotating shaft 45 is moved, causing the outer casing 48 to move. At the same time, the first gear 46 slides. Since the first gear 46 is meshed with the toothed plate 461, the first gear 46 moves and rotates at the same time, which drives the first crown gear 481 to rotate. This causes the two second crown gears 482 to rotate relative to each other, which drives the multiple nozzles 49 installed on the outside of the second crown gears 482 to rotate. At the same time, the raw material is drawn out from the inside of the paint storage tank 4 by the second paint delivery pump 41 and delivered to the nozzles 49 through the hose. The nozzles 49 move and rotate on the outer surface of the pipe to coat the material. During the coating process, excess paint is guided by the limiting baffle 5 to flow into the filter tank 51. The filter tank 51 filters the waste, and the filtered waste flows to the lower part of the processing box 1. Driven by the servo motor, the screw propulsion shaft 31 rotates, thereby collecting the waste into the collection pool 32. A paint delivery pump 3 is provided on one side of the lower part of the processing box 1, which can extract the paint from the collection pool 32 and transport it through a hose for centralized collection or put it into the paint storage box 4 for reuse.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A polyethylene pipe processing and coating apparatus, comprising a processing box (1), characterized in that: The processing box (1) has a processing window (21) on one side of the upper part. A pipe fixing clamp (2) is installed on the upper part of the processing box (1). A paint storage box (4) is fixedly installed in the middle of the top of the processing box (1). A No. 2 paint delivery pump (41) is installed on one side of the top of the processing box (1). The input end of the No. 2 paint delivery pump (41) is fixedly installed on the lower side of the paint storage box (4). A transverse screw (43) is rotatably installed on the upper part of the processing box (1). A drive assembly is provided at one end of the transverse screw (43). A moving block (44) is threaded on the upper part of the transverse screw (43). A rotating shaft (45) is rotatably installed at the bottom end of the moving block (44). A housing (48) is provided at the lower part of the rotating shaft (45). The pipe fixing clamp (2) is located in the middle of the housing (48). A support frame (47) is fixedly installed on the top of the housing (48). A first crown gear (481) is rotatably mounted on the inner upper surface of the outer shell (48). A second crown gear (482) is rotatably mounted on both sides of the middle part of the outer shell (48). Both second crown gears (482) are meshed with the first crown gear (481). Multiple nozzles (49) arranged in a ring array are fixedly mounted on the outer sides of both second crown gears (482). Multiple nozzles (49) are connected to the output end of the second paint delivery pump (41) through hoses. The top of the first crown gear (481) is fixedly mounted on the bottom end of the rotating shaft (45). A first gear (46) is fixedly mounted on the upper part of the rotating shaft (45). A toothed plate (461) is fixedly mounted on the inner upper surface of the processing box (1). The first gear (46) and the toothed plate (461) are meshed with each other.

2. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, The lower part of the processing box (1) is fixedly installed with two symmetrically distributed limiting baffles (5). The two limiting baffles (5) are slidably clamped on opposite sides and have filter grooves (51). The lower part of the processing box (1) is rotatably installed with a spiral propulsion shaft (31). A collection pool (32) is opened on one side of the lower part of the processing box (1).

3. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, The drive assembly includes a drive motor (42), which is fixedly installed on the upper side of the processing box (1), and one end of the transverse screw (43) is fixedly installed on the drive end of the drive motor (42).

4. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, The upper part of the processing box (1) is provided with a moving groove (441), and the moving block (44) is slidably locked inside the moving groove (441).

5. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, Two symmetrically distributed limiting rods (471) are fixedly installed on the upper part of the processing box (1), and the upper part of the support frame (47) is slidably locked on the outer surface of the limiting rods (471).

6. The polyethylene pipe processing and coating apparatus as described in claim 2, characterized in that, Limiting grooves (53) are provided in the middle of the opposite sides of the two limiting baffles (5), and limiting blocks (52) are fixedly installed on both sides of the filter tank (51). The two limiting blocks (52) are slidably locked inside the limiting grooves (53).

7. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, A No. 1 paint delivery pump (3) is fixedly installed on one side of the lower part of the processing box (1).

8. The polyethylene pipe processing and coating apparatus as described in claim 1, characterized in that, A manned machine control platform (11) is installed on the upper side of the processing box (1).