Plastic electric power pipe shaping device

Abstract

The invention relates to the technical field of plastic pipe processing, and discloses a plastic power pipe shaping device which comprises a guide cooling mechanism and a shaping cooling mechanism, the guide cooling mechanism can ascend and descend and is used for supporting and guiding pipes of different specifications and cooling the outer walls of the pipes, and the shaping cooling mechanism is used for cooling the outer walls of the pipes. The shaping and cooling mechanism is arranged corresponding to the guiding and cooling mechanism and used for supporting and shaping the inner walls of the ends of the pipes of different specifications and cooling the inner walls of the pipes. The guiding cooling mechanism and the shaping cooling mechanism are adapted to pipes of different specifications, and the inner walls and the outer walls of the pipes are cooled at the same time, so that the overall temperature gradient of the pipes is reduced, the pipes are prevented from flowing and deforming, the uniformity of the pipe wall thickness of the pipes is improved, rapid cooling and shaping of the pipes are guaranteed, and the production quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of plastic pipe processing technology, and in particular to a plastic power pipe shaping device. Background Technology

[0002] Plastic power pipes are key materials used in power engineering to protect cables. They have advantages such as corrosion resistance, good insulation performance, light weight, and convenient installation. They have good insulation performance and can effectively isolate potential risks in the power transmission process. Their dimensional accuracy, surface quality, and structural stability directly affect the safety and reliability of power transmission.

[0003] Existing plastic power pipes are all produced by extrusion. After extrusion, they need to be cooled and shaped. However, most existing shaping devices can only cool and shape a single pipe specification and cannot cool and shape plastic power pipes of different specifications (such as different diameters and different wall thicknesses). Summary of the Invention

[0004] This application discloses a plastic power pipe shaping device to solve the problem in the prior art that it is impossible to cool and shape pipes of different specifications.

[0005] To solve the above problems, the present invention adopts the following technical solution: A plastic power pipe shaping device, comprising: The guiding and cooling mechanism can be raised and lowered. It is used to support and guide pipes of different specifications and to cool the outer wall of the pipes. The shaping and cooling mechanism is set up in accordance with the guiding and cooling mechanism. The shaping and cooling mechanism is used to support and shape the inner wall of the pipe end of different specifications and to cool the inner wall of the pipe.

[0006] The technical solution adopted in this invention can achieve the following beneficial effects: This invention adjusts the height of the guiding cooling mechanism according to different pipe specifications, allowing it to support and guide the pipe while simultaneously cooling its inner wall. A shaping cooling mechanism supports and shapes the inner wall of the pipe ends, moving synchronously with the extrusion speed and cooling the inner wall as well. After complete extrusion and cooling, the shaping cooling mechanism separates from the pipe, and the guiding cooling mechanism continues to transport the shaped pipe to the next process. This invention adapts to different pipe specifications by using guiding and shaping cooling mechanisms, simultaneously cooling both the inner and outer walls of the pipe. This reduces the overall temperature gradient, preventing flow and deformation, improving the uniformity of pipe wall thickness, ensuring rapid cooling and shaping, and guaranteeing production quality. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is one of the overall front cross-sectional structural schematic diagrams disclosed in some embodiments of this application; Figure 2 This is the second of the overall front cross-sectional structural schematic diagrams disclosed in some embodiments of this application; Figure 3 This is the third of the overall front cross-sectional structural schematic diagrams disclosed in some embodiments of this application; Figure 4 yes Figure 3 Enlarged structural diagram at point A; Figure 5 yes Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the overall bottom cross-sectional structure disclosed in some embodiments of this application; Figure 7 This is a front cross-sectional view of the shaping component and the second cooling component disclosed in some embodiments of this application; Figure 8 This is a schematic diagram of the overall left-side cross-sectional structure disclosed in some embodiments of this application; Figure 9 This is a schematic diagram of the left-side cross-sectional structure of the shaping component and the second cooling component disclosed in some embodiments of this application.

[0009] In the picture: 100-Guided cooling mechanism; 110-Guided assembly; 111-Mounting base; 112-Rotating roller; 120-First cooling assembly; 121-First cavity; 122-First air outlet; 123-Second cavity; 124-Second air outlet; 125-First cooling component; 126-Main pipe; 127-Branch pipe; 130-First telescopic component; 200 - Shaping and cooling mechanism; 210 - Moving component; 211 - Annular drive unit; 2111 - Drive sprocket; 2112 - Driven sprocket; 2113 - Chain; 2114 - Drive component; 212 - Annular guide rail; 213 - Moving part; 2131 - Connecting plate; 2132 - Guide wheel; 2133 - Mounting plate; 220 - Shaping component; 221 - Mounting cylinder; 2211 - Connecting rod; 221 2-Slide groove; 222-Shaping plate; 223-Telescopic abutment part; 2231-Telescopic rod; 2232-First wedge block; 2233-Moving rod; 2234-Second wedge block; 2235-Elastic element; 2236-Second telescopic element; 230-Second cooling assembly; 231-Second cooling component; 232-Spiral strip; 233-First air guide groove; 234-Mounting strip; 235-Second air guide groove; 10-Shaping box; 11-Feed inlet; 12-Discharge outlet; 13-Air outlet; 14-Exhaust fan; 15-Filter screen. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0011] The terms "first," "second," "third," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," "third," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0012] The inventive concept of this application is described here: During practical use, the inventors discovered that most existing shaping devices can only cool and shape single pipe specifications, and cannot cool and shape plastic power pipes of different specifications (such as different diameters and different wall thicknesses). Moreover, most existing shaping devices only cool the outer wall of the pipe and cannot directly cool the inner wall. This results in the outer wall of the pipe cooling and solidifying first, while the inner wall cools slowly, leaving it at a higher temperature. The plastic on the inner wall is prone to flow and deformation. Furthermore, due to poor cooling uniformity during shaping, the pipe is prone to deformation, resulting in inconsistent wall thickness at the top and bottom, which affects the quality of the pipe.

[0013] Based on this, the inventor provides a plastic power pipe shaping device to adapt to plastic power pipes of different specifications. At the same time, it cools the inner and outer walls of the pipe to prevent the plastic in the pipe from deforming due to high temperature flow, and improves the uniformity of cooling of the inner and outer walls of the pipe, thereby improving the shaping effect, ensuring the uniformity of the pipe wall thickness, and improving the quality of the pipe.

[0014] The following is in conjunction with the appendix Figures 1 to 9 The present application provides a detailed description of a plastic power pipe shaping device through specific embodiments and application scenarios.

[0015] Reference Figure 1 A plastic power pipe shaping device includes: a guiding cooling mechanism 100 and a shaping cooling mechanism 200; Specifically, refer to Figure 1 and Figure 6The shaping device also includes a shaping box 10, with an inlet 11 and an outlet 12 respectively opened on the two end side walls of the shaping box 10. The inlet 11 and outlet 12 can be circularly arranged. The inlet 11 is set to correspond to the extrusion equipment. After the raw material is heated at high temperature in the extrusion die of the extrusion equipment, it is plasticized and melted and gradually becomes tubular. The raw material is initially formed at the extrusion die. The extruded tube enters the shaping box 10 from the inlet 11 for cooling and shaping. Specifically, the axis of the extruded tube is at the same height as the axis of the inlet 11 and outlet 12 to facilitate the adaptation of the guiding cooling mechanism 100 and the shaping cooling mechanism 200 to tubes of different specifications. The guiding cooling mechanism 100 is located in the shaping box 10. Inside the lower part of the molding box 10, the shaping and cooling mechanism 200 is located in the upper part of the molding box 10, and is located above the guiding cooling mechanism 100. The top of the molding box 10 has an air outlet 13 for discharging the mixture of cold air and hot air from the pipe inside the molding box 10. An exhaust fan 14 is installed at the air outlet 13 on the top of the molding box 10 to dehumidify the inside of the molding box 10 and ensure the cooling effect. A filter screen 15 is installed at the air outlet of the exhaust fan 14 to prevent external dust from entering the exhaust fan 14 and reducing its service life. The number of air outlets 13 and exhaust fans 14 can be multiple, and the specific number is designed according to the actual situation.

[0016] It should be noted that the pipe used in this embodiment is a plastic power pipe, and the same applies below.

[0017] Reference Figures 1 to 3 The guide cooling mechanism 100 can be raised and lowered. The guide cooling mechanism 100 is used to support and guide pipes of different specifications and to cool the outer wall of the pipes. Specifically, the guide cooling mechanism 100 is adjusted in height to accommodate pipes of different specifications, ensuring stable support and guidance. The guide cooling mechanism 100 can also convey the pipes, with its conveying speed matching the speed at which the pipes are extruded by the extrusion equipment, thus achieving synchronous conveying of the pipes. After the pipes are cooled and shaped, the guide cooling mechanism 100 conveys the shaped pipes to the next process.

[0018] Reference Figures 1 to 3 The shaping and cooling mechanism 200 is provided in correspondence with the guiding and cooling mechanism 100. The shaping and cooling mechanism 200 is used to support and shape the inner wall of the pipe end of different specifications and to cool the inner wall of the pipe.

[0019] Specifically, the shaping and cooling mechanism 200 matches the inner diameter of the pipe to form a uniform supporting force, thereby supporting and shaping the inner wall of the pipe end to meet the shaping requirements of different pipe specifications. Then, it moves synchronously with the extrusion speed of the pipe extrusion equipment and cools the inner wall of the pipe at the same time.

[0020] The guiding cooling mechanism 100 and the shaping cooling mechanism 200 adapt to pipes of different specifications, and simultaneously cool the inner and outer walls of the pipes, thereby reducing the overall temperature gradient of the pipes, preventing the pipes from flowing and deforming, improving the uniformity of the pipe wall thickness, ensuring rapid cooling and shaping of the pipes, and guaranteeing production quality.

[0021] Reference Figure 2 In this embodiment, the guiding cooling mechanism 100 includes a guiding component 110 and a first cooling component 120; The guide assembly 110 is movable, and the first cooling assembly 120 is disposed on the guide assembly 110; Specifically, the guide assembly 110 is located in the lower part of the shaping box 10.

[0022] Reference Figure 2 , Figure 3 and Figure 8 The guiding cooling mechanism 100 also includes a first telescopic member 130, which is vertically arranged inside the shaping box 10. The telescopic end of the first telescopic member 130 is connected to the guiding assembly 110. The first telescopic member 130 can be a cylinder, a hydraulic cylinder, or an electric cylinder. In this embodiment, the first telescopic member 130 is preferably a cylinder. Its specific structure and working principle are common knowledge, so they will not be described in detail here. The number of first telescopic members 130 is two or more, and can be set according to the actual situation. In this embodiment, the number of first telescopic members 130 is four, which are distributed in a rectangular array below the guiding assembly 110.

[0023] The guide assembly 110 is used to support and guide pipes of different specifications; Specifically, the axis of the pipe of different specifications is aligned with the axis of the feed port 11 to achieve alignment. The height of the guide component 110 is flexibly adjusted to support and guide the extruded pipe, ensuring that the pipe maintains a straight movement during transportation. The pipe can also be straight-line pulled by the shaping and cooling mechanism 200 to avoid scratches on the outer wall and local dents caused by shaking or deviation.

[0024] The first cooling assembly 120 is used to cool the outer wall of the pipe.

[0025] Specifically, the first cooling component 120 moves up and down synchronously with the guide component 110 to ensure cooling distance and achieve uniform cooling of the outer wall of the pipe of all specifications, so as to achieve uniform solidification of the outer wall and avoid stress concentration caused by local temperature difference. The guide component 110 provides stable support, while the first cooling component 120 cools it in time. The uncooled molten outer wall maintains its shape under the support of the guide component 110. The first cooling component 120 quickly removes heat, so that the outer wall of the pipe can be quickly solidified during transportation. The solidified outer wall can further enhance the deformation resistance of the pipe itself, reduce the shape damage during subsequent transportation or inner wall shaping, and improve the surface quality of the pipe.

[0026] Reference Figure 3 and Figure 8 In this embodiment, the guide assembly 110 includes a mounting base 111 and a plurality of rotating rollers 112; The mounting base 111 can be raised and lowered, and multiple rotating rollers 112 are rotatably connected to the mounting base 111; Specifically, the telescopic end of the first telescopic member 130 is connected to the bottom of the mounting base 111; the mounting base 111 is U-shaped; multiple rollers 112 are rotatably mounted inside the lower part of the mounting base 111, with the tops of the rollers 112 flush to reduce the risk of scratching the pipe; the shaft of one of the rollers 112 is connected to the output end of the reducer, which is mounted on the side wall of the mounting base 111. The specific structure and working principle of the reducer are common knowledge and will not be described in detail here; the shafts of the multiple rollers 112 can be connected to each other by a gear chain (not shown in the figure) or a synchronous pulley and toothed belt (not shown in the figure), so that the multiple rollers 112 can rotate synchronously; the shafts of the rollers 112 are rotatably connected to the mounting base 111 through bearings.

[0027] Roller 112 is used to support and guide the tube.

[0028] Specifically, the mounting base 111 is raised and lowered by the first telescopic component 130, thereby adjusting the support height of the rotating roller 112 so that the support point of the rotating roller 112 always maintains a matching relative position with the central axis of the pipe, that is, the top of the rotating roller 112 is in tangential contact with the outer wall of the pipe; the rotating roller 112 rotates synchronously with the pipe, forming rolling friction, which greatly reduces the risk of scratches on the outer wall of the pipe; multiple rotating rollers 112 are arranged at intervals along the pipe conveying direction, which can disperse the pressure generated by the weight of the pipe, avoid collapse caused by excessive local stress, and achieve stable support; and the conveying speed of the rotating roller 112 on the pipe is consistent with the speed at which the pipe is extruded by the extrusion equipment, realizing synchronous conveying of the pipe, and after the pipe is cooled and shaped, the shaped pipe is conveyed to the next process by the rotating roller 112.

[0029] Reference Figure 8In this embodiment, the first cooling component 120 includes a first cavity 121, a first air outlet 122, a second cavity 123, a second air outlet 124, and a first cooling element 125; The first cavity 121 is opened inside the rotating roller 112. The surface of the rotating roller 112 is provided with a plurality of first air outlet holes 122 communicating with the first cavity 121. The two sides of the mounting base 111 are provided with second cavities 123 communicating with the first cavity 121. The two sides of the mounting base 111 are provided with a plurality of second air outlet holes 124 communicating with the second cavity 123. The first cooling component 125 is connected to the second cavity 123 through a pipe. Specifically, the first air outlet 122 is arranged in a circumferential array along the axial direction of the rotating roller 112, and cooling air can be directly delivered to the support point and surrounding area of ​​the outer wall of the pipe in contact with the rotating roller through the first air outlet 122; the rotating roller 112 has through holes to connect the first cavity 121 and the second cavity 123; multiple second air outlets 124 communicating with the second cavity 123 are arranged in an array on the opposite side surface of the mounting base 111 along the length direction of the mounting base 111, and cooling air can be blown to the non-supported side area of ​​the outer wall of the pipe through the second air outlets 124, forming an air curtain with the first air outlets 122. The cover and the two together ensure that the outer wall of the pipe can be cooled evenly from the support contact point to both sides, avoiding shaping deviations caused by local temperature differences and effectively improving the shaping and cooling efficiency of the pipe. The two sides of the mounting base 111 can be higher than the diameter of the pipe to avoid cooling blind spots due to specification differences. The first cooling component 125 can be a blower or a cold air blower. In this embodiment, the first cooling component 125 is preferably a cold air blower, which can flexibly adjust the cooling intensity and improve the adaptability of shaping quality. Its specific structure and working principle are common knowledge, so they will not be described in detail here. The number of first cooling components 125 can be designed according to the actual situation.

[0030] Reference Figure 8 The first cooling component 125 is located outside the shaping box 10. The air outlet of the first cooling component 125 is connected to the main pipe 126. Multiple branch pipes 127 are connected to the main pipe 126. The branch pipes 127 pass through the shaping box 10 and communicate with the second cavity 123. Preferably, the branch pipes 127 are flexible hoses.

[0031] The first cooling element 125 cools the outer wall of the pipe by passing air through the first air outlet 122 and the second air outlet 124.

[0032] Specifically, after the pipe comes out of the extrusion equipment, it is in a high-temperature softened state and its posture is maintained by the support and guidance of the rotating roller 112. At the same time, the first cooling component 125 delivers cold air to the second cavity 123 through the main pipe 126 and the branch pipe 127. Then the cold air enters the first cavity 121, so that the cold air is blown out from the first air outlet 122 and the second air outlet 124, which allows the pipe to solidify quickly under a stable supported posture and reduces the shaking of the pipe during the shaping process. Compared with water cooling, air cooling will not leave any contaminants on the outer wall of the pipe, which meets the industry requirements for the cleanliness of the outer wall of plastic power pipes (power pipes need to avoid impurities affecting the insulation performance).

[0033] Reference Figure 2 and Figure 3 In this embodiment, the shaping and cooling mechanism 200 includes a moving component 210, a shaping component 220, and a second cooling component 230; The moving component 210 is set to correspond to the guide component 110, the shaping component 220 is connected to the moving component 210, and the second cooling component 230 is connected to the moving component 210. Specifically, the movable component 210 is located at the top inside the shaping box 10.

[0034] The moving component 210 is used to drive the shaping component 220 and the second cooling component 230 to move, so that the moving speed of the shaping component 220 and the second cooling component 230 is consistent with the extrusion speed of the tube. Specifically, the moving component 210 precisely matches the extrusion speed of the extrusion equipment to keep the shaping component 220 and the second cooling component 230 relatively stationary with the pipe, thereby eliminating friction damage at the source and ensuring the smoothness of the inner wall of the pipe. In the synchronous movement state, the supporting force of the shaping component 220 on the inner wall of the pipe can remain uniform and stable, avoiding uneven local force caused by relative movement, and thus preventing dimensional deviations such as local diameter reduction and end roundness of the pipe.

[0035] The shaping component 220 is used to support and shape the inner wall of the end of pipes of different specifications; Specifically, the shaping component 220 extends into the inner wall of the pipe end for support, ensuring that key dimensions such as the inner diameter and roundness of the end meet the standards, avoiding docking difficulties caused by deformation. Furthermore, the shaping component 220 adapts to pipes of different specifications, reducing equipment investment costs and enhancing the device's adaptability to multi-category production needs. Additionally, the moving component 210 drives the shaping component 220 to perform linear traction on the pipe, preventing scratches and local dents on the outer wall caused by shaking or offset. The axis of the shaping component 220 is at the same height as the extrusion axis of the pipe, facilitating the shaping component 220 to support and shape the inner wall of the pipe end.

[0036] The second cooling assembly 230 is used to cool the inner wall of the pipe.

[0037] Specifically, the second cooling component 230 acts directly on the high-temperature pipe from the inner wall, forming a sandwich cooling path with the first cooling component 120 on the outer wall. This significantly increases the cooling area and heat exchange efficiency, significantly shortens the cooling time, improves the overall production rhythm, and enhances product quality. Furthermore, the synchronous internal and external cooling can effectively reduce the temperature difference, reduce internal stress concentration, and ensure that the physical and mechanical properties of the pipe meet the standards for use in power pipes.

[0038] Reference Figure 3 and Figure 6 In this embodiment, the moving component 210 includes an annular driving part 211, an annular guide rail 212, and a moving part 213; The annular drive unit 211 is provided corresponding to the guide assembly 110. The annular guide rail 212 is located outside the annular drive unit 211. The moving part 213 is slidably connected to the annular guide rail 212 and connected to the annular drive unit 211. The shaping assembly 220 and the second cooling assembly 230 are connected to the moving part 213. Specifically, the annular drive unit 211 is located above the guide assembly 110, and is disposed at the top inside the shaping box 10; the annular guide rail 212 is installed at the top inside the shaping box 10 and is located outside the annular drive unit 211; the annular guide rail 212 is arranged in an oblong shape, with one long side in the same direction as the conveying direction of the rotating roller 112 (i.e., this long side is located directly above the rotating roller 112); the annular guide rail 212 provides a clear annular motion trajectory for the moving part 213, directly constraining the movement direction of the moving part. During the continuous extrusion process of the plastic power pipe, the shaping assembly 220 needs to... The second cooling component 230 needs to be precisely applied to the inner wall area of ​​the pipe to maintain continuous contact with it. If the moving part 213 deviates from its trajectory, it will cause misalignment of the shaping support and uneven cooling, ultimately leading to pipe wall thickness deviation or roundness defects. The moving part 213 and the annular guide rail 212 are connected by a sliding connection, which greatly reduces the frictional resistance between them. On the one hand, this can reduce drive energy consumption and lower equipment operating costs. On the other hand, it avoids speed fluctuations caused by friction jamming, laying the foundation for subsequent speed synchronization. It also reduces mechanical wear, extends component lifespan, and reduces equipment maintenance frequency.

[0039] Reference Figure 4 and Figure 8The moving part 213 includes a connecting plate 2131 connected to the annular drive part 211. The connecting plate 2131 is horizontally arranged, and a guide wheel 2132 is rotatably arranged on the side of the connecting plate 2131 facing the annular guide rail 212. The annular guide rail 212 has an I-shaped cross section, and there are at least two guide wheels 2132, located on both sides of the annular guide rail 212 respectively. The guide wheels 2132 slide in contact with the annular guide rail 212. In this embodiment, there are four guide wheels 2132. A mounting plate 2133 is vertically installed on the side of the connecting plate 2131 away from the annular guide rail 212. A shaping component 220 and a second cooling component 230 are installed on the lower side of the mounting plate 2133. When the connecting plate 2131 moves to one of the long sides of the annular guide rail 212 (the long side is located directly above the rotating roller 112), the mounting plate 2133 is perpendicular to the extrusion axis of the tube.

[0040] Reference Figure 3 and Figure 6 The annular drive unit 211 is used to drive the moving unit 213 to move along the annular guide rail 212, so as to drive the shaping component 220 and the second cooling component 230 to move.

[0041] Specifically, the annular drive unit 211 keeps the moving part 213 moving at the same speed as the tube extrusion speed, allowing the shaping component 220 to continuously and stably support the inner wall of the tube, and the second cooling component 230 to continuously cool the inner wall, significantly improving the shaping effect and cooling efficiency. After the tube is completely extruded, the first cooling component 120 and the second cooling component 230 cool the inner and outer walls of the tube for a period of time. Then, the annular drive unit 211 drives the moving part 213 to continue moving along the long side of the annular guide rail 212, and then the moving part 213 turns to the other long side of the annular guide rail 212. The shaping component 220 is separated from the tube. At this time, the shaped tube is transported to the next process by the rotating roller 112. The moving part 213 returns to the long side of the initial position along the annular guide rail 212 and reconnects to the end of the newly extruded tube, realizing continuous operation without intervals and improving the tube processing volume per unit time, perfectly matching the efficiency requirements of industrial mass production. During the process of moving part 213 moving back to the initial position, it will not interfere with the mounting base 111. The mounting base 111 is set corresponding to the long side of the annular guide rail 212 (which is located directly above the rotating roller 112).

[0042] Reference Figure 6 In this embodiment, the annular drive unit 211 includes a drive sprocket 2111, a driven sprocket 2112, and a chain 2113; The driving sprocket 2111 and the driven sprocket 2112 are rotatably arranged, and a chain 2113 is wound between the surfaces of the driving sprocket 2111 and the driven sprocket 2112, and the chain 2113 is connected to the moving part 213; Specifically, the drive sprocket 2111 and the driven sprocket 2112 are rotatably mounted on both sides of the top of the shaping box 10; the chain 2113 is located below the annular guide rail 212; the driven sprocket 2112 is slidably mounted, corresponding to the strip hole opened on the top of the shaping box 10, and the driven sprocket 2112 is slidably connected to the strip hole through a T-shaped guide post; mounting strips are provided on both sides of the driven sprocket 2112, and bolts are provided on the mounting strips to tighten the driven sprocket 2112, so as to realize the movement adjustment of the driven sprocket 2112, thereby realizing the tension adjustment of the chain 2113; the annular guide rail 212 is located outside the chain 2113; the pin on the chain 2113 is connected to the connecting plate 2131, so that the chain 2113 drives the connecting plate 2131 to move, thereby making the moving speed of the shaping component 220 and the second cooling component 230 consistent with the pipe extrusion speed.

[0043] Reference Figure 3 , Figure 6 and Figure 8 A drive component 2114 connected to the drive sprocket 2111 is vertically mounted on the top of the shaping box 10. The output shaft of the drive component 2114 passes through the top of the shaping box 10 and is connected to the drive sprocket 2111. The output shaft of the drive component 2114 is rotatably connected to the top of the shaping box 10. The drive component 2114 is preferably a combination of a servo motor and a reducer. Its specific structure and working principle are common knowledge, so they will not be described in detail here.

[0044] The driving sprocket 2111 drives the driven sprocket 2112 to rotate via the chain 2113, thereby driving the moving part 213 to move along the annular guide rail 212.

[0045] Specifically, the drive sprocket 2111 is driven to rotate by the drive component 2114. The drive sprocket 2111 drives the driven sprocket 2112 to rotate via the chain 2113, thereby moving the connecting plate 2131 and in turn moving the shaping component 220 and the second cooling component 230. Through the cyclic reciprocating operation of the moving part 213, uninterrupted shaping and cooling of the continuously extruded tube is ensured, greatly improving production continuity and efficiency.

[0046] Reference Figure 5 , Figure 6 and Figure 7 In this embodiment, the shaping component 220 includes a mounting cylinder 221, a shaping plate 222, and a telescopic abutment part 223; The mounting cylinder 221 is connected to the moving part 213. Multiple shaping plates 222 are evenly distributed around the circumference of the mounting cylinder 221. A telescopic abutment part 223 is provided inside the mounting cylinder 221. The shaping plates 222 are connected to the telescopic abutment part 223. Specifically, the mounting cylinder 221 is horizontally positioned and is cylindrical or square. The axis of the mounting cylinder 221 is at the same height as the extrusion axis of the pipe, which facilitates the support and shaping of the inner wall of the pipe end. In this embodiment, the mounting cylinder 221 is cylindrical. The shaping plate 222 is arc-shaped. In this embodiment, there are four shaping plates 222. The multiple shaping plates 222 form a support surface that is adapted to the inner wall of the pipe, thereby supporting the inner wall of the pipe. When the connecting plate 2131 moves to one of the long sides of the annular guide rail 212 (which is located directly above the rotating roller 112), the mounting cylinder 221 and the second cooling assembly 230 are located on the side of the mounting plate 2133 facing the feed inlet 11, and at this time, the end of the mounting cylinder 221 away from the mounting plate 2133 is close to the feed inlet 11.

[0047] Reference Figure 5 and Figure 7 The mounting cylinder 221 and the mounting plate 2133 are connected by connecting rods 2211. In this embodiment, there are 4 connecting rods 2211, which are arranged in a rectangular array. The mounting cylinder 221 is provided with a sliding groove 2212.

[0048] By extending and retracting the telescopic abutment part 223, the shaping plate 222 moves radially along the mounting cylinder 221, so that the shaping plate 222 supports and shapes the inner wall of the pipe end of different specifications.

[0049] Specifically, when it is necessary to adapt to large-diameter pipes, the telescopic abutment part 223 extends, pushing the shaping plate 222 to expand outward. When it is necessary to adapt to small-diameter pipes, the telescopic abutment part 223 retracts, pulling the shaping plate 222 inward, thus achieving adaptation to pipes of different specifications. When production needs are switched from one specification to another, there is no need to disassemble or replace the entire shaping component 220. Only the telescopic abutment part 223 needs to be operated to complete the position adjustment of the shaping plate 222, which significantly shortens the downtime for changing shapes, improves production efficiency, and reduces equipment maintenance costs and downtime risks.

[0050] Reference Figure 7 and Figure 9 In this embodiment, the telescopic abutment part 223 includes a telescopic rod 2231, a first wedge block 2232, a moving rod 2233, a second wedge block 2234, and an elastic member 2235; The telescopic rod 2231 is slidably disposed inside the mounting cylinder 221. Multiple first wedge blocks 2232 are connected to the telescopic rod 2231. Multiple movable rods 2233 are connected to the side of the shaping plate 222 facing the mounting cylinder 221. The movable rods 2233 are slidably connected to the mounting cylinder 221. One end of the movable rod 2233 located inside the mounting cylinder 221 is connected to a second wedge block 2234 that abuts against the first wedge block 2232. An elastic element 2235 sleeved on the outer surface of the movable rod 2233 is connected between the second wedge block 2234 and the inner wall of the mounting cylinder 221. Specifically, the telescopic rod 2231 is horizontally slidably disposed inside the mounting cylinder 221. The first wedge block 2232 has an annular inclined surface on the side facing the second wedge block 2234 so as to abut and cooperate with the second wedge block 2234. In this embodiment, there are 3 first wedge blocks 2232. Similarly, there are 3 moving rods 2233 on each shaping plate 222. One first wedge block 2232 corresponds to 4 second wedge blocks 2234. The second wedge blocks 2234 are arranged in a trapezoidal shape. The elastic element 2235 is preferably a spring.

[0051] Reference Figure 5 and Figure 7 The telescopic abutment part 223 also includes a second telescopic member 2236 connected to the mounting plate 2133. The output end of the second telescopic member 2236 is connected to the telescopic rod 2231, and the telescopic rod 2231 is slidably connected to the mounting cylinder 221. The second telescopic member 2236 can be a cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, the second telescopic member 2236 is preferably a cylinder. Its specific structure and working principle are common knowledge, so they will not be described in detail here.

[0052] Reference Figure 7 and Figure 9 The extension and retraction of the telescopic rod 2231 causes the first wedge block 2232 to drive the second wedge block 2234 to move, and causes the shaping plate 222 to move radially along the mounting cylinder 221. Specifically, the second telescopic member 2236 drives the telescopic rod 2231 to extend and retract, converting the axial extension and retraction of the telescopic rod 2231 into the radial movement of the shaping plate 222. Specifically, the first wedge block 2232 on the telescopic rod 2231 pushes the second wedge block 2234 through the inclined surface, so that the second wedge block 2234 drives the moving rod 2233 to move, so that the shaping plate 222 can extend or retract radially to adapt to the inner diameter of pipes of different specifications.

[0053] The elastic element 2235 is used to drive the shaping plate 222 to reset.

[0054] Specifically, when the telescopic rod 2231 retracts, the abutment force of the first wedge block 2232 against the second wedge block 2234 disappears, and the elastic restoring force of the elastic element 2235 pulls the second wedge block 2234 toward the center of the mounting cylinder 221, thereby causing the moving rod 2233 and the shaping plate 222 to retract radially.

[0055] The radial movement of each shaping plate 222 is precisely controlled by the corresponding wedge block. Since the first wedge block 2232 is evenly arranged around the telescopic rod 2231, the extension / retraction distance of each shaping plate 222 is consistent, ensuring that the inner wall of the pipe is subjected to balanced force in all circumferential directions. This avoids deformation of the inner wall of the pipe due to excessive or insufficient local support force, and significantly improves the shaping accuracy and end appearance quality of the plastic power pipe.

[0056] Reference Figure 5 , Figures 7 to 9 In this embodiment, the second cooling component 230 includes a second cooling element 231, a spiral strip 232, and a first air guide groove 233; The second cooling component 231 is connected to the moving part 213. The surface of the mounting cylinder 221 is connected with a spiral strip 232, and a first air guide groove 233 is formed between the spiral strips 232. Specifically, the second cooling element 231 is horizontally arranged on both sides of the second telescopic element 2236. In this embodiment, there are two second cooling elements 231. The second cooling element 231 is preferably a micro fan. Its specific structure and working principle are common knowledge, so they will not be described in detail here. The timely cooling of the second cooling element 231 can quickly solidify the shape of the inner wall of the pipe and avoid dimensional deviations caused by high-temperature springback after shaping. The first air guide groove 233 of the spiral strip 232 makes the cooling air flow in a spiral forward state along the inner wall of the pipe, rather than in a straight line. This prolongs the cooling path and thus prolongs the contact time between the cooling air and the high-temperature inner wall, increasing the sufficiency of heat exchange. Compared with straight flow, the cooling efficiency can be improved by more than 30%.

[0057] Reference Figure 5 , Figures 7 to 9 The second cooling assembly 230 also includes a plurality of mounting strips 234 disposed on the side of the shaping plate 222 facing the mounting cylinder 221. The mounting strips 234 are arranged in an inclined arc shape, and the mounting strips 234 of the four shaping plates 222 can be combined to form a spiral shape. A second air guide groove 235 is formed between adjacent mounting strips 234. Through the arrangement of the second air guide groove 235 and its cooperation with the first air guide groove 233, the spiral advance state of the cooling air is further realized, thereby improving the cooling efficiency.

[0058] The second cooling element 231 is used to cool the inner wall of the pipe; The first air guide slot 233 is used to guide the airflow in order to improve cooling efficiency.

[0059] Specifically, the spiral guide allows the cooling air to evenly cover every area of ​​the inner wall of the pipe, improving cooling uniformity and ensuring the shaping effect; and during the pipe extrusion process, the second cooling component 231 continuously delivers cooling air to the newly extruded high-temperature inner wall area, ensuring that the pipe is in a stable cooling environment throughout the entire process from extrusion to initial curing.

[0060] By simultaneously and uniformly cooling the inner and outer walls of the pipe, the dimensional accuracy and physical properties of the plastic power pipe are guaranteed to meet industry standards, reducing the defect rate and improving product quality.

[0061] In this embodiment, an electrical control cabinet (not shown) is provided on one side of the shaping box 10; the electrical control cabinet (not shown) contains various electrical components, system programs, operation panels, etc., which control the entire device to perform actions according to a predetermined program, process various sensors and signal sources, and output corresponding program instructions. The operator can input the data of the plastic power tube extruded by the extrusion equipment into the system program through an external touch screen. At the same time, external indicator lights and alarm lights display the operating status of the device, and external buttons can pause or stop the operation of the device.

[0062] Working principle: During use, according to the specifications of the pipe extruded by the extrusion equipment, the second telescopic component 2236 drives the telescopic rod 2231 to extend and retract. The first wedge block 2232 on the telescopic rod 2231 pushes the second wedge block 2234 through the inclined surface, so that the second wedge block 2234 drives the moving rod 2233 to move, so that the shaping plate 222 extends or retracts radially to adapt to the inner diameter of pipes of different specifications. At this time, the connecting plate 2131 is located at the intersection of the long side and the arc side of the annular guide rail 212 (the long side is located directly above the rotating roller 112), and at this time, the end of the mounting cylinder 221 away from the mounting plate 2133 is close to the feed port 11. At the same time, the height of the mounting seat 111 is adjusted by the first telescopic component 130, thereby adjusting the height of the rotating roller 112 so that the rotating roller 112 supports and guides the extruded pipe. The extruded pipe enters the shaping box 10 through the feed inlet 11. The inner wall of the pipe end is fitted onto the outside of the shaping plate 222, and the outer wall of the pipe is supported by the rotating rollers 112. At this time, the reducer drives multiple rotating rollers 112 to rotate. The conveying speed of the pipe by the rotating rollers 112 is the same as the speed at which the pipe is extruded by the extruder. The first cooling element 125 delivers cold air to the second cavity 123 through the main pipe 126 and the branch pipe 127. Then the cold air enters the first cavity 121, so that the cold air is blown out from the first air outlet 122 and the second air outlet 124, allowing the pipe to solidify quickly under a stable supported posture. When the end of the pipe completely covers the shaping plate 222... After wrapping, the drive sprocket 2111 is driven to rotate by the drive component 2114. The drive sprocket 2111 drives the driven sprocket 2112 to rotate through the chain 2113, thereby driving the connecting plate 2131 to move linearly, and then driving the connecting plate 2131 and the second cooling component 231 to move linearly, so that the moving speed of the connecting plate 2131 and the second cooling component 231 is consistent with the pipe extrusion speed. At the same time, the second cooling component 231 cools the inner wall of the pipe. The pipe is cooled evenly on both the inner and outer walls at the same time, so that the pipe can be quickly solidified during the transportation process. The solidified part can further enhance the pipe's own resistance to deformation and reduce the shape damage during subsequent transportation. After the pipe is fully extruded, the roller 112 stops conveying. The pipe is cooled on the roller 112 by the first cooling component 120 and the second cooling component 230 for a period of time. Then, the second telescopic component 2236 retracts, pulling the shaping plate 222 inward. The chain 2113 drives the connecting plate 2131 to continue moving along the long side of the annular guide rail 212. Then, the connecting plate 2131 turns to the other long side of the annular guide rail 212 to avoid interference with the mounting cylinder 221 when the pipe is output from the outlet 12. This achieves the separation of the shaping component 220 from the pipe. At this time, the shaped pipe is output from the shaping box 10 and conveyed to the next process by the roller 112. The connecting plate 2131 returns to the initial position along the annular guide rail 212 and reconnects to the end of the newly extruded pipe.

[0063] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0064] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A plastic power pipe shaping device, characterized in that, include: A guide cooling mechanism (100) is provided, which can be raised and lowered. The guide cooling mechanism (100) is used to support and guide pipes of different specifications and to cool the outer wall of the pipes. A shaping and cooling mechanism (200) is provided in accordance with the guiding and cooling mechanism (100). The shaping and cooling mechanism (200) is used to support and shape the inner wall of the pipe end of different specifications and to cool the inner wall of the pipe.

2. The plastic power pipe shaping device according to claim 1, characterized in that, The guiding cooling mechanism (100) includes a guiding assembly (110) and a first cooling assembly (120); The guide assembly (110) is movable, and the first cooling assembly (120) is disposed on the guide assembly (110). The guide assembly (110) is used to support and guide pipes of different specifications; The first cooling assembly (120) is used to cool the outer wall of the pipe.

3. The plastic power pipe shaping device according to claim 2, characterized in that, The guide assembly (110) includes a mounting base (111) and a plurality of rollers (112). The mounting base (111) can be raised and lowered, and the plurality of the rotating rollers (112) are rotatably connected to the mounting base (111). The roller (112) is used to support and guide the pipe.

4. The plastic power pipe shaping device according to claim 3, characterized in that, The first cooling assembly (120) includes a first cavity (121), a first air outlet (122), a second cavity (123), a second air outlet (124), and a first cooling element (125). The first cavity (121) is opened inside the rotating roller (112). The rotating roller (112) has a plurality of first air outlet holes (122) communicating with the first cavity (121) on its surface. The mounting base (111) has second cavities (123) communicating with the first cavity (121) on both sides. The mounting base (111) has a plurality of second air outlet holes (124) communicating with the second cavity (123) on both sides. The first cooling component (125) is connected to the second cavity (123) through a pipe. The first cooling element (125) cools the outer wall of the pipe by passing air through the first air outlet (122) and the second air outlet (124).

5. The plastic power pipe shaping device according to claim 4, characterized in that, The shaping and cooling mechanism (200) includes a moving component (210), a shaping component (220), and a second cooling component (230); The moving component (210) is provided corresponding to the guiding component (110), the shaping component (220) is connected to the moving component (210), and the second cooling component (230) is connected to the moving component (210); The moving component (210) is used to drive the shaping component (220) and the second cooling component (230) to move, so that the moving speed of the shaping component (220) and the second cooling component (230) is consistent with the extrusion speed of the tube; The shaping component (220) is used to support and shape the inner wall of the end of pipes of different specifications; The second cooling assembly (230) is used to cool the inner wall of the pipe.

6. The plastic power pipe shaping device according to claim 5, characterized in that, The moving component (210) includes an annular drive unit (211), an annular guide rail (212), and a moving unit (213). The annular drive unit (211) is provided with a corresponding guide assembly (110), the annular guide rail (212) is located outside the annular drive unit (211), the moving part (213) is slidably connected to the annular guide rail (212), the moving part (213) is connected to the annular drive unit (211), and the moving part (213) is connected with a shaping assembly (220) and a second cooling assembly (230). The annular drive unit (211) is used to drive the moving unit (213) to move along the annular guide rail (212) so as to drive the shaping component (220) and the second cooling component (230) to move.

7. The plastic power pipe shaping device according to claim 6, characterized in that, The annular drive unit (211) includes a drive sprocket (2111), a driven sprocket (2112), and a chain (2113). The driving sprocket (2111) and the driven sprocket (2112) are rotatably arranged, and a chain (2113) is wound between the surfaces of the driving sprocket (2111) and the driven sprocket (2112), and the chain (2113) is connected to the moving part (223); The driving sprocket (2111) drives the driven sprocket (2112) to rotate via the chain (2113), thereby driving the moving part (213) to move along the annular guide rail (212).

8. The plastic power pipe shaping device according to claim 7, characterized in that, The shaping component (220) includes a mounting cylinder (221), a shaping plate (222), and a telescopic abutment part (223). The mounting cylinder (221) is connected to the moving part (213). Multiple shaping plates (222) are evenly distributed around the mounting cylinder (221). A telescopic abutment part (223) is provided inside the mounting cylinder (221). The shaping plate (222) is connected to the telescopic abutment part (223). By extending and retracting the telescopic abutment part (223), the shaping plate (222) moves radially along the mounting cylinder (221) so that the shaping plate (222) supports and shapes the inner wall of the pipe end of different specifications.

9. The plastic power pipe shaping device according to claim 8, characterized in that, The telescopic contact part (223) includes a telescopic rod (2231), a first wedge block (2232), a moving rod (2233), a second wedge block (2234), and an elastic element (2235). The telescopic rod (2231) is slidably disposed inside the mounting cylinder (221). Multiple first wedge blocks (2232) are connected to the telescopic rod (2231). Multiple movable rods (2233) are connected to the side of the shaping plate (222) facing the mounting cylinder (221). The movable rods (2233) are slidably connected to the mounting cylinder (221). One end of the movable rod (2233) located inside the mounting cylinder (221) is connected to a second wedge block (2234) that abuts against the first wedge block (2232). An elastic element (2235) sleeved on the outer surface of the movable rod (2233) is connected between the second wedge block (2234) and the inner wall of the mounting cylinder (221). The extension and retraction of the telescopic rod (2231) causes the first wedge block (2232) to drive the second wedge block (2234) to move, and causes the shaping plate (222) to move radially along the mounting cylinder (221); The elastic element (2235) is used to drive the shaping plate (222) to reset.

10. The plastic power pipe shaping device according to claim 9, characterized in that, The second cooling assembly (230) includes a second cooling element (231), a spiral strip (232), and a first air guide groove (233); The second cooling component (231) is connected to the moving part (213), and a spiral strip (232) is connected to the surface of the mounting cylinder (221), and a first air guide groove (233) is formed between the spiral strips (232). The second cooling element (231) is used to cool the inner wall of the pipe; The first air guide slot (233) is used to guide the airflow in order to improve cooling efficiency.

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