Automatic production device for plastic-lined steel pipeline
By using an automated production device, a U-shaped base with an inclined angle is formed by the driving wheel and the driven wheel. Combined with infrared heating and a feeding system, the problems of low processing efficiency and unstable quality of steel-lined plastic pipes are solved, and efficient and stable plastic powder coating processing is achieved.
Patent Information
- Application Number
- CN202423133424.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing steel-lined plastic pipe processing is inefficient, time-consuming and labor-intensive, and the quality is unstable, relying on manual operation.
Design an automated production device for steel-lined plastic pipes. The device utilizes a U-shaped base formed by a drive wheel and a driven wheel at an inclined angle, combined with a drive motor to rotate the pipe. The temperature is controlled by an infrared heater. A feeding hopper and a brush are set up to precisely control the coating of plastic powder. A metering scale and a collection hopper are used for material control.
It achieves efficient and stable plastic powder coating processing, improves processing efficiency, reduces manpower consumption, and ensures the stability and accuracy of product quality.
Smart Images
Figure CN223864162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a processing device for rigid-lined plastic pipes, and more particularly to an automated production device for rigid-lined plastic pipes. Background Technology
[0002] Steel-lined plastic pipes are steel pipes with a corrosion-resistant plastic layer on the inner surface. They are very common in equipment for conveying highly corrosive media such as nitric acid, sulfuric acid, hydrofluoric acid, phosgene, chlorine, aqua regia, mixed acids, and organic solvents such as bromides.
[0003] Currently, the processing of steel-lined plastic pipes is mostly done manually. Workers place the steel pipe flat on a heater, then use tools such as channel steel to feed plastic powder into the pipe, pouring it to the bottom to form a plastic powder strip the same length as the pipe. Once the steel pipe reaches the melting temperature range of the plastic powder, the pipe is manually rotated, causing the plastic powder to slide continuously circumferentially inside the pipe, making contact with the entire inner wall of the pipe. During this contact process, the plastic powder at the contact surface melts and firmly adheres to the inner wall of the pipe, forming a plastic layer. Excess powder continues to slide until the entire inner wall of the pipe is evenly coated with the required thickness of plastic coating. This method is inefficient, time-consuming, labor-intensive, and produces inconsistent quality.
[0004] Therefore, in order to meet the growing demand for high-quality rigid-lined plastic pipes, this application proposes an automated production device for rigid-lined plastic pipes. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides an automated production device for rigid-lined plastic pipes. This utility model features high processing efficiency, time and labor savings, and stable quality; it also boasts a simple structure, reasonable design, convenient operation, and strong practicality.
[0006] The technical solution of this utility model:
[0007] An automated production device for steel-lined plastic pipes includes a U-shaped base. A pair of driving wheels and a pair of driven wheels are spaced apart at the upper end of the U-shaped base. The driving wheels are connected to a drive motor via a transmission mechanism. The line connecting the top surfaces of the driving wheels and the driven wheels forms an angle with the horizontal plane. A steel-lined plastic pipe is placed above the driving wheels and the driven wheels.
[0008] This solution places the rigid-lined plastic pipe above a drive wheel and a driven wheel with a certain height difference, so that the central axis of the rigid-lined plastic pipe forms a certain angle with the horizontal plane. During processing, plastic powder can be directly fed into one end of the rigid-lined plastic pipe. Then, the drive motor drives the rigid-lined plastic pipe to rotate, and the powder moves in the direction of the resultant force in the circumferential and axial directions during the rotation, thus completing the covering of the entire interior of the rigid-lined plastic pipe. This device has higher processing efficiency, saves more time and labor, and produces rigid-lined plastic pipes with more stable quality. Moreover, the device has a simple structure, reasonable design, and is easy to operate, making it highly practical.
[0009] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, the included angle is 1-5°. 1-5° is a suitable angle; if the angle is too large, the plastic powder will fall too quickly and will not be able to contact the entire inner wall of the pipe; if the angle is too small, it will affect the plastic powder from sliding to the other end.
[0010] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, an infrared heater is provided around the rigid-lined plastic pipe, and the infrared heater is connected to a temperature controller.
[0011] This solution is more convenient to use because it uses an infrared heater around the plastic-lined pipe and controls the temperature with a temperature controller.
[0012] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, a feeding hopper is provided on one side of the U-shaped base, and the feeding hopper is connected to the rigid-lined plastic pipe via a feeding pipe, with a feeding pump provided in the middle of the feeding pipe.
[0013] This solution, by setting up a feeding hopper and connecting it to a rigid-lined plastic pipe via a feeding pipe, makes feeding more convenient and improves processing efficiency.
[0014] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, the end of the feeding pipe extends 1-5 cm into the end edge of the rigid-lined plastic pipe.
[0015] This solution sets the insertion depth of the feeding pipe, within which plastic powder can cover the entire inner wall of the pipe, resulting in more stable processing quality. In addition, some plastic powder will slide off the outer edge of the end within this depth range, making it easier to coat the outer flange surface. The design is more reasonable and the processing efficiency is higher.
[0016] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, brush one and brush two are respectively provided on the outer sides of both ends of the rigid-lined plastic pipe. Brush one and brush two intersect with the lower side of the end edges of both ends of the rigid-lined plastic pipe, forming an acute angle with the opening facing upward.
[0017] This solution, by setting up brush one and brush two to form an angle with the pipe end face, can intercept the sliding plastic powder and prolong the contact time with the pipe end face, thereby improving the coating effect on the end face and further ensuring the processing quality.
[0018] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, a metering scale is provided below the feeding hopper, and the metering scale and the feeding pump are connected to a feeding controller.
[0019] This solution, by installing a weighing scale below the feeding hopper and connecting it to a controller along with the feeding pump, can control the feeding amount based on the material usage of each pipe, making quality control easier.
[0020] As a preferred embodiment, the aforementioned automated production device for rigid-lined plastic pipes has a first collection hopper and a second collection hopper respectively located below the end edges of both ends of the rigid-lined plastic pipe.
[0021] This solution facilitates the collection of falling powder by installing two collection hoppers below the pipeline, thereby reducing waste.
[0022] Preferably, in the aforementioned automated production device for rigid-lined plastic pipes, a second and a third metering scale are respectively installed below the first and second collection hoppers, and the second and third metering scales are connected to the feeding controller.
[0023] This solution involves installing two weighing scales, Scale 2 and Scale 3, below hopper 1 and hopper 2 respectively, and connecting them to the feed controller. The amount of coating material needed inside the pipe can be calculated by measuring the difference between Scale 1 and Scale 2 and Scale 3, resulting in more precise control of coating thickness and more stable quality.
[0024] The beneficial effects of this utility model are:
[0025] 1. This utility model places a rigid plastic-lined pipe above a driving wheel and a driven wheel with a certain height difference, so that the central axis of the rigid plastic-lined pipe forms a certain inclination angle with the horizontal plane. During processing, plastic powder can be directly fed into one end of the rigid plastic-lined pipe. Then, the driving motor drives the rigid plastic-lined pipe to rotate, and the powder moves in the direction of the resultant force in the circumferential and axial directions during the rotation, thus completing the covering of the entire interior of the rigid plastic-lined pipe. This device has higher processing efficiency, saves more time and labor, and produces rigid plastic-lined pipes with more stable quality. Moreover, the device has a simple structure, reasonable design, and is easy to operate, making it highly practical.
[0026] 2. This utility model is more convenient to use because it has an infrared heater around the plastic-lined pipe and controls the temperature with a temperature controller.
[0027] 3. By setting up a feeding hopper and connecting it to a rigid-lined plastic pipe through a feeding pipe, the feeding operation is more convenient and the processing efficiency is higher.
[0028] 4. By setting the insertion depth of the feeding pipe, the plastic powder can cover the entire inner wall of the pipe within this depth range, resulting in more stable processing quality. In addition, some plastic powder will slide off the outer edge of the end within this depth range, which facilitates coating the outer flange surface. The design is more reasonable and the processing efficiency is higher.
[0029] 5. By setting up brush one and brush two to form an angle with the pipe end face, this utility model can intercept the sliding plastic powder and prolong the contact time with the pipe end face, thereby improving the coating processing effect of the end face and further ensuring the processing quality.
[0030] 6. This utility model, by setting a metering scale below the feeding hopper and connecting it to the controller along with the feeding pump, can control the feeding amount according to the material consumption of each pipe, making quality control easier.
[0031] 7. This utility model facilitates the collection of falling powder by setting up two collection hoppers below the pipeline, thereby reducing waste.
[0032] 8. This utility model sets up metering scale 2 and metering scale 3 below the first and second collection hoppers respectively, and connects them to the feeding controller. The amount of coating material used inside the pipe can be calculated by the metering difference between metering scale 1 and metering scale 2 and metering scale 3. The coating thickness is controlled more accurately and the quality is more stable.
[0033] In summary, this utility model has the advantages of high processing efficiency, time and labor saving, stable quality, simple structure, reasonable design, convenient operation, and strong practicality. Attached Figure Description
[0034] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;
[0035] Appendix Figure 2 This is a side view of the U-shaped base of this utility model.
[0036] Explanation of reference numerals in the attached drawings: 1-U-shaped base, 2-drive wheel, 3-driven wheel, 4-transmission mechanism, 5-drive motor, 6-steel-lined plastic pipe, 7-infrared heater, 8-temperature controller, 9-feeding hopper, 10-feeding pipe, 11-feeding pump, 12-feeding controller, 13-brush one, 14-brush two, 15-collecting hopper one, 16-collecting hopper two, 17-weighing scale one, 18-weighing scale two, 19-weighing scale three. Detailed Implementation
[0037] The present invention will be further described below with reference to the embodiments, but this should not be construed as limiting the present invention.
[0038] Embodiments of this utility model
[0039] An automated production device for steel-lined plastic pipes, as shown in the attached document. Figure 1-2 As shown, it includes a U-shaped base 1, with a pair of driving wheels 2 and a pair of driven wheels 3 spaced apart at the upper end of the U-shaped base 1. The driving wheels 2 are connected to a drive motor 5 via a transmission mechanism 4 such as a chain. The line connecting the top surfaces of the driving wheels 2 and the driven wheels 3 forms an angle with the horizontal plane. A rigid plastic-lined pipe 6 is placed above the driving wheels 2 and the driven wheels 3.
[0040] When using this embodiment, as follows: Figure 1 As shown, the rigid-lined plastic pipe 6 is placed above the driving wheel 2 and the driven wheel 3. The drive motor 5 is started to rotate the rigid-lined plastic pipe 6, while an external heat source heats the rigid-lined plastic pipe 6. During the rotation of the rigid-lined plastic pipe 6, plastic powder is put into the port at the higher end of the rigid-lined plastic pipe 6. As the rigid-lined plastic pipe 6 rotates, the plastic powder tumbles and slides down circumferentially inside the rigid-lined plastic pipe 6, and continuously contacts the inner wall of the rigid-lined plastic pipe 6. After the powder at the contact surface melts, it adheres to the inner surface of the rigid-lined plastic pipe 6, thus forming a plastic lining. At the same time, due to the height difference between the two ends of the rigid-lined plastic pipe 6, the plastic powder will also slide towards the lower end. Thus, in the process of the plastic powder moving circumferentially and axially, the lining process of the entire inner wall of the rigid-lined plastic pipe 6 is completed.
[0041] Further implementation, for example, is attached. Figure 1-2 As shown, the included angle is 1-5°.
[0042] Further implementation, for example, is attached. Figure 1-2 As shown, an infrared heater 7 is provided around the rigid plastic-lined pipe 6, and the infrared heater 7 is connected to a temperature controller 8.
[0043] In this embodiment, the output power of the infrared heater 7 is controlled by the temperature controller 8 so that the surface temperature of the rigid plastic-lined pipe 6 is within the melting range of the plastic powder.
[0044] Further implementation, for example, is attached. Figure 1-2 As shown, a feeding hopper 9 is provided on one side of the U-shaped base 1. The feeding hopper 9 is connected to the rigid plastic-lined pipe 6 via a feeding pipe 10. A feeding pump 11 is provided in the middle of the feeding pipe 10.
[0045] In this embodiment, plastic powder is first loaded into the feeding hopper 9. Under the action of the feeding pump 11, the plastic powder moves along the feeding pipe 10 and is transported into the rigid plastic-lined pipe 6. The feeding amount and feeding position can be manually set.
[0046] Further implementation, for example, is attached. Figure 1-2As shown, the end of the feeding pipe 10 extends 1-5cm into the higher end edge of the plastic-lined pipe 6.
[0047] In this embodiment, the insertion depth of the feeding pipe 10 is fixed. The plastic powder falls into the end position of the rigid plastic-lined pipe 6 and then forms an accumulation. Most of the accumulated powder slides down according to the aforementioned movement trajectory and forms an inner lining in the rigid plastic-lined pipe 6, while a small portion of the powder slides down from the end edge and comes into contact with the end face, forming a coating on the end face.
[0048] Further implementation, for example, is attached. Figure 1-2 As shown, brush one 13 and brush two 14 are respectively provided on the outer sides of both ends of the rigid plastic-lined pipe 6. Brush one 13 and brush two 14 intersect with the lower side of the end edges of both ends of the rigid plastic-lined pipe 6, forming an acute angle with the opening facing upward.
[0049] In this embodiment, brush 13 and brush 2 are similar to a worker's hand, with the purpose of stopping the plastic powder, prolonging its contact time with the end face, and improving the processing effect of the plastic coating.
[0050] Further implementation, for example, is attached. Figure 1-2 As shown, a metering scale 17 is provided below the feeding hopper 9, and the metering scale 17 and the feeding pump 11 are connected to a feeding controller 12.
[0051] In this embodiment, the purpose of the metering scale 17 is to measure the output amount of plastic powder in the feeding hopper 9, so that the output amount of powder can meet the material requirements of the inner lining layer, thereby controlling the output amount of powder.
[0052] Further implementation, for example, is attached. Figure 1-2 As shown, material collection hopper 15 and material collection hopper 2 are respectively provided below the two ends of the plastic-lined pipe 6.
[0053] In this embodiment, the main purpose of collecting hopper 15 and collecting hopper 2 16 is to collect the plastic powder that falls from both ends of the plastic-lined pipe 6.
[0054] Further implementation, for example, is attached. Figure 1-2 As shown, weighing scale 18 and weighing scale 19 are respectively provided below the first hopper 15 and the second hopper 16, and the weighing scale 18 and the weighing scale 19 are connected to the feeding controller 12.
[0055] In this embodiment, weighing scale 2 18 and weighing scale 3 19 respectively measure the amount of powder collected in collecting hopper 15 and collecting hopper 2 16. By subtracting the total amount of powder collected by weighing scale 2 18 and weighing scale 3 19 from the amount of powder output obtained by weighing scale 17, the amount of material used for the lining can be calculated, making the amount of material used for the lining more accurate and the processing quality of the rigid-lined plastic pipe more stable.
[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automated production device for steel-lined plastic pipes, characterized in that: It includes a U-shaped base (1), with a pair of driving wheels (2) and a pair of driven wheels (3) spaced apart at the upper end of the U-shaped base (1). The driving wheels (2) are connected to a drive motor (5) via a transmission mechanism (4). The line connecting the top surfaces of the driving wheels (2) and the driven wheels (3) forms an angle with the horizontal plane. A rigid plastic-lined pipe (6) is placed above the driving wheels (2) and the driven wheels (3).
2. The automated production device for steel-lined plastic pipes according to claim 1, characterized in that: The included angle is 1-5°.
3. The automated production device for steel-lined plastic pipes according to claim 1, characterized in that: An infrared heater (7) is provided around the rigid plastic-lined pipe (6), and the infrared heater (7) is connected to a temperature controller (8).
4. The automated production device for steel-lined plastic pipes according to claim 1, characterized in that: The U-shaped base (1) is provided with a feeding hopper (9) on one side. The feeding hopper (9) is connected to the plastic-lined pipe (6) via a feeding pipe (10). A feeding pump (11) is provided in the middle of the feeding pipe (10).
5. The automated production device for steel-lined plastic pipes according to claim 4, characterized in that: The end of the feeding pipe (10) extends 1-5 cm into the end edge of the plastic-lined pipe (6).
6. The automated production device for steel-lined plastic pipes according to claim 1 or 5, characterized in that: The outer sides of both ends of the rigid plastic-lined pipe (6) are respectively provided with brush one (13) and brush two (14). Brush one (13) and brush two (14) intersect with the lower side of the end edge of both ends of the rigid plastic-lined pipe (6) to form an acute angle with the opening facing upward.
7. The automated production device for steel-lined plastic pipes according to claim 4, characterized in that: Below the feeding hopper (9) is a metering scale (17), and the metering scale (17) and the feeding pump (11) are connected to a feeding controller (12).
8. The automated production device for steel-lined plastic pipes according to claim 7, characterized in that: The plastic-lined pipe (6) has a first collection hopper (15) and a second collection hopper (16) located below the ends of both ends.
9. The automated production device for steel-lined plastic pipes according to claim 8, characterized in that: Below the first (15) and the second (16) of the collection hoppers, there are respectively a second (18) and a third (19) of the metering scales, which are connected to the feed controller (12).