A corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure, processing equipment, and process

Abstract

The present invention discloses a corrosion-resistant, heat-resistant and deformation-resistant MPP electric pipe structure, processing equipment and process, including an MPP electric pipe body, wherein the MPP electric pipe body includes an outer layer tube and an inner layer core tube. The two ends of the MPP electric pipe body are centered and clamped by an electric pipe clamping mechanism to prevent the injection molding filling cavity of the electric pipe from being offset during injection molding. The injection molding shaking mechanism at the lower end of the MPP electric pipe body is added to ensure that the impact arc plate reciprocates to shake the MPP electric pipe body as a whole, vibrates out gas and eliminates bubbles. At the same time, the transmission component drives the two sets of guide wheels at the upper end to abut and clamp the MPP electric pipe body, thereby improving the stability of the MPP electric pipe body during injection molding production, ensuring that the masterbatch filling density inside the injection molding filling cavity is uniform, and solving the problem in the prior art that some gas is easily present in the melt during injection molding to generate bubbles, thereby reducing the density of the masterbatch filling, and can eliminate injection molding bubbles and enhance the anti-deformation performance of the pipe body.

Description

Technical Field

[0001] The present invention belongs to the technical field of MPP power pipe processing, and specifically relates to a corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure, processing equipment, and process. Background Art

[0002] MPP power pipe is also called MPP power cable protection pipe and MPP cable protection pipe. Its raw material is PP powder (modified polypropylene) as the main masterbatch. Its connection method is hot-melt welding with a welding machine. The welding point is about 200 degrees and cannot exceed 220 degrees. When the temperature is reached, the two ends can be butt-jointed. MPP power pipe uses modified polypropylene as the main raw material. It does not require a large amount of mud, excavation and damage to the road surface. It is a construction project for laying pipelines and cables in special areas such as roads, railways, buildings, and under riverbeds.

[0003] In the prior art, in order to prevent the power pipe from being deformed due to collision or extrusion during use, support columns are evenly arranged in the partition cavity of the inner tube to enhance the compressive resistance of the power pipe itself. The support columns are generally produced and processed by a screw injection molding machine by injecting sufficient masterbatch into the filling cavity.

[0004] However, in the actual production process, after the masterbatch is filled into the inner tube, it is filled only by gravity, which makes it easy for some gas to enter the melt during injection molding and produce bubbles, thereby reducing the density of the masterbatch filling, causing injection molding faults of the support column rods, and reducing the overall compressive resistance of the tube body.

[0005] Therefore, we proposed a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure, processing equipment and process to solve the problem in the prior art that some gas is easily introduced into the melt during injection molding to produce bubbles, thereby reducing the density of the masterbatch filling. This can eliminate injection bubbles and enhance the deformation resistance of the pipe body. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure, processing equipment and process, which have the advantages of eliminating injection bubbles and enhancing the deformation resistance of the pipe body.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: In the first aspect, a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure includes an MPP power pipe body, wherein the MPP power pipe body includes an outer tube and an inner core tube, a filling cavity is arranged between the outer tube and the inner core tube, the interior of the filling cavity is filled with heat-conductive and pressure-resistant material, and heat-conducting plates are arranged in an equidistant array inside the filling cavity, and the heat-conducting plates penetrate the inner walls of the outer tube and the inner core tube.

[0008] Preferably, a wear-resistant layer pipe is fixedly connected to the inner side surface of the outer layer pipe. A corrosion-resistant layer pipe is arranged on the inner side surface of the wear-resistant layer pipe. Support columns are fixedly installed on the inner circumferential surface of the corrosion-resistant layer pipe, and the support columns are arranged in an equidistant array about the central axis of the MPP power pipe body. One end of the inner side of the support column is fixedly connected to a compression-resistant outer ring. Rhombic elastic blocks are evenly distributed on the inner circumferential surface of the compression-resistant outer ring. The inner side of the rhombic elastic block is fixedly connected to the outer surface of the inner layer core pipe. An anti-wear pipe core is fixedly added to the inner circumferential surface of the inner layer core pipe. Arc-shaped strips are evenly distributed on the inner surface of the anti-wear pipe core.

[0009] In a second aspect, a processing device for an anti-corrosion, heat-resistant and anti-deformation MPP power pipe structure includes a device base. A support seat is fixedly installed on the upper surface of the device base. An injection molding tank is arranged on one side of the support seat, and an injection molding pipe is fixedly connected to the lower output end of the injection molding tank. An empty slot for auxiliary limit installation is opened on the inner wall of the upper end of the support seat. The empty slot is integrally in a "C" shape structure. A limit plate and an installation frame plate are respectively fixedly installed on the inner wall of the empty slot. A power pipe clamping mechanism is arranged on the limit plate. The power pipe clamping mechanism includes a rotating circular plate and an auxiliary fine-tuning component. The lower end of the installation frame plate is fixedly connected to an electric telescopic rod. The lower end of the electric telescopic rod penetrates through the bottom surface of the support seat. A convex block is fixedly installed on the outer surface of the piston rod at the output end of the electric telescopic rod. An impact arc plate is fixedly installed on the outer surface of the upper end of the piston rod. Injection molding shaking mechanisms are respectively arranged on both sides of the impact arc plate. The injection molding shaking mechanism includes a transmission component.

[0010] Preferably, installation stretching blocks are fixedly installed on the inner surface of the installation frame plate. There are two groups of installation stretching blocks, and the two groups of installation stretching blocks are symmetrically distributed about the vertical center line of the installation frame plate. The lower end of the installation stretching block is fixedly connected to a guide sleeve fixedly connected to the inner bottom surface of the installation frame plate. A return spring is fixedly connected to the outer side surface of the guide sleeve. The lower outer surface of the return spring is fixedly connected to a lifting plate, and the inner wall of the lifting plate is slidably connected to the lower outer surface of the guide sleeve.

[0011] Preferably, the transmission component includes a rack. The lower end of the rack is fixedly connected to the upper surface of the lifting plate. A meshing gear is rotationally engaged with the outer surface of the rack. A rotating rod rotatably connected to the inner wall of the support seat is fixedly connected to the central inner surface of the meshing gear. A pulley one is fixedly connected to the outer surface of the rotating rod. A pulley two is arranged above the pulley one, and the outer surface of the pulley two is rotationally connected to the outer surface of the pulley one through a belt.

[0012] Preferably, a shaft is fixedly mounted on the central inner surface of the pulley 2, a guide wheel is fixedly connected to the outer surface of the shaft, a support arm is rotatably mounted on the outer surface of one end of the shaft, and the other end of the support arm is fixedly connected to the upper surface of the stretching block.

[0013] Preferably, the outer surface of one end of the rotating circular plate is rotatably connected to the inner wall of the limiting plate, a convex plate is fixedly provided on the upper end of the rotating circular plate, and the auxiliary fine-tuning assembly includes a fixed block fixedly installed on the outer surface of one side of the limiting plate, the outer surface of the fixed block is rotatably connected to the rotating block, the inner wall of the rotating block is rotatably connected to a threaded rotating rod, and the outer surface of the threaded rotating rod is threadedly connected to a threaded block fixedly connected to the outer surface of the convex plate.

[0014] Preferably, a fixed cylinder is fixedly provided on the outer surface of the limit plate, and the fixed cylinders are provided in three groups and are arranged in an array equidistantly about the central axis of the limit plate. The outer surface of the fixed cylinder is rotatably connected to a movable abutment rod, and a clamping roller is rotatably installed on the end of the movable abutment rod away from the fixed cylinder, and the outer surface of the clamping roller is movably connected to the outer surface of the MPP power pipe body.

[0015] Preferably, the outer surface of the movable abutment rod is slidably connected with a slide cylinder, the outer surface of the slide cylinder is fixedly provided with a convex column, and the outer surface of the convex column is rotatably connected with the outer inner wall of the rotating circular plate.

[0016] In the third aspect, a corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure, processing equipment, and process are provided, which are based on the above-mentioned corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure processing equipment. The process of the corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure processing equipment comprises the following steps:

[0017] Step 1: preparing the masterbatch of the outer tube and the inner tube;

[0018] Step 2: Place the power pipe clamp to be filled by injection molding on the upper end of the support seat to keep it stable;

[0019] Step 3: putting the masterbatch prepared in step 1 into the injection molding tank for preheating, and injecting and extruding the preheated injection molding masterbatch into the injection molding filling cavity on one side through the injection molding tube;

[0020] Step 4: Perform auxiliary shaking on the bottom of the MPP power pipe body to be filled by injection molding, and continuously shake the masterbatch inside the injection molding filling cavity to reduce the density of the masterbatch melt and ensure that the injection molding filling cavity is tightly filled;

[0021] Step 5: Continue to fully fill the polypropylene masterbatch into multiple adjacent injection molding filling cavities;

[0022] Step 6: Cool the injection molding masterbatch and the power pipe as a whole to obtain the final product.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] By dividing the tube body into an outer tube and an inner core tube, and filling the inner and outer tubes with heat-conductive and pressure-resistant materials, a heat-conductive and pressure-resistant layer is formed between the inner and outer tubes. Combined with the uniform arrangement of the heat-conducting sheets, the thermal conductivity of the tube body can be improved, so that the tube body can quickly conduct heat and improve the heat dissipation performance. The wear-resistant layer tube and the corrosion-resistant layer tube cooperate with each other to enhance the corrosion resistance and wear resistance of the power tube. In addition, the arc strips added to the inner core of the MPP power tube body can improve the threading speed and further avoid the increase in friction temperature of the cable during threading, so that the tube body has good thermal conductivity and durability, thereby increasing the service life of the tube body.

[0025] The two ends of the MPP power tube body are clamped by the power tube clamping mechanism to prevent the injection molding filling cavity of the power tube from being offset during injection molding. The injection molding shaking mechanism at the lower end of the MPP power tube body is added to ensure that the impact arc plate reciprocates to shake the MPP power tube body as a whole, vibrates out gas and eliminates bubbles. At the same time, the transmission assembly drives the two sets of guide wheels at the upper end to abut and clamp the MPP power tube body, thereby improving the stability of the MPP power tube body during injection molding production and ensuring that the masterbatch filling density inside the injection molding filling cavity is uniform. This solves the problem in the prior art that some gas is easily present in the solution during injection molding to generate bubbles, thereby reducing the density of the masterbatch filling, and can eliminate injection bubbles and enhance the deformation resistance of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a partial three-dimensional structure of the MPP power pipe body of the present invention;

[0027] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the MPP power pipe body of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the MPP power pipe body of the present invention;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the processing equipment of the present invention;

[0030] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a support seat of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the electric power pipe clamping mechanism of the present invention;

[0032] Figure 7 It is a side view stereoscopic structural schematic diagram of the injection molding shaking mechanism of the present invention;

[0033] Figure 8It is a three-dimensional structural schematic diagram of the injection molding shaking mechanism of the present invention;

[0034] Fig. 9 It is a partial three-dimensional structural schematic diagram of the injection molding shaking mechanism of the present invention;

[0035] Fig.10 It is a schematic diagram of a partial three-dimensional cross-sectional structure of a support seat of the present invention;

[0036] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure at point A;

[0037] Fig.12 It is a flow chart of the present invention.

[0038] In the figure: 1, MPP power pipe body; 11, arc strip; 2, outer layer pipe; 21, wear-resistant layer pipe; 22, corrosion-resistant layer pipe; 23, support column; 231, injection molding filling cavity; 3, inner layer core pipe; 31, diamond-shaped elastic block; 32, pressure-resistant outer ring; 4, heat conductive sheet;

[0039] 5. Equipment base; 51. Support seat; 6. Injection molding tank; 61. Injection molding tube; 7. Limiting plate; 71. Rotating circular plate; 711. Convex plate; 712. Threaded block; 72. Auxiliary fine-tuning assembly; 721. Fixed block; 722. Rotating block; 723. Threaded rotating rod; 73. Fixed cylinder; 731. Movable supporting rod; 732. Sliding cylinder; 733. Clamping roller;

[0040] 8. Install the frame plate; 81. Install the stretching block; 82. Lifting plate; 83. Guide sleeve; 831. Return spring; 84. Transmission assembly; 841. Rack; 842. Meshing gear; 8421. Rotating rod; 843. Pulley 1; 844. Pulley 2; 85. Guide wheel; 851. Support arm;

[0041] 9. Electric telescopic rod; 91. Impact arc plate; 911. Bump. DETAILED DESCRIPTION

[0042] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0043] See also Figure 1-12The present invention provides a technical solution: a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure, comprising an MPP power pipe body 1, the MPP power pipe body 1 comprising an outer layer pipe 2 and an inner core pipe 3, a filling cavity is arranged between the outer layer pipe 2 and the inner core pipe 3, the interior of the filling cavity is filled with heat-conductive and pressure-resistant materials, and heat-conducting plates 4 are arranged in an equidistant array inside the filling cavity, and the heat-conducting plates 4 penetrate the inner walls of the outer layer pipe 2 and the inner core pipe 3, the inner side surface of the outer layer pipe 2 is fixedly connected with a wear-resistant layer pipe 21, the inner side surface of the wear-resistant layer pipe 21 is provided with a corrosion-resistant layer pipe 22, the inner side annular surface of the corrosion-resistant layer pipe 22 is fixedly installed with a support column 23, and the support column 23 is arranged in an equidistant array about the central axis of the MPP power pipe body 1, one end of the inner side of the support column 23 is fixedly connected with a pressure-resistant outer ring 32, the inner side annular surface of the pressure-resistant outer ring 32 is evenly provided with rhombus elastic blocks 31, and the inner side of the rhombus elastic block 31 is connected to the inner core pipe 32. The outer ring surface of the tube 3 is fixedly connected, and the inner ring surface of the inner core tube 3 is fixedly provided with an anti-wear tube core, and the inner surface of the anti-wear tube core is evenly provided with arc strips 11. By dividing the tube body into an outer tube 2 and an inner core tube 3, and filling the inner and outer tubes with heat-conductive and pressure-resistant materials, a heat-conductive and pressure-resistant layer is formed between the inner and outer tubes. With the uniform arrangement of the heat-conducting sheet 4, the thermal conductivity of the tube body can be improved, so that the tube body can quickly conduct heat and improve the heat dissipation performance. The wear-resistant layer tube 21 and the corrosion-resistant layer tube 22 cooperate with each other to enhance the corrosion resistance and wear resistance of the power tube. The arc strip 11 added to the inner core of the MPP power tube body 1 can improve the threading speed while further avoiding the increase in friction temperature of the cable during threading, so that the tube body has good thermal conductivity and durability, and the service life of the tube body is improved. The injection filling cavity 231 is set as an injection cavity corresponding to the support column 23. Embodiment 2

[0044] See attached Figure 1-12, on the basis of Embodiment 1, a processing device for the structure of an anti-corrosion, heat-resistant and anti-deformation MPP power pipe includes a device base 5. A support base 51 is fixedly installed on the upper surface of the device base 5. An injection molding tank 6 is arranged on one side of the support base 51. The lower output end of the injection molding tank 6 is fixedly connected with an injection molding pipe 61. An empty groove for auxiliary limit installation is opened on the inner wall of the upper end of the support base 51. The empty groove is integrally in a "C" shape. A limit plate 7 and a mounting frame plate 8 are fixedly installed on the inner wall of the empty groove respectively. A power pipe clamping mechanism is arranged on the limit plate 7. The power pipe clamping mechanism includes a rotating circular plate 71 and an auxiliary fine-tuning component 72. The lower end of the mounting frame plate 8 is fixedly connected with an electric telescopic rod 9. The lower end of the electric telescopic rod 9 penetrates through the bottom surface of the support base 51. A convex block 911 is fixedly installed on the outer surface of the piston rod at the output end of the electric telescopic rod 9. An impact arc plate 91 is fixedly installed on the outer surface of the upper end of the piston rod. Injection molding jitter mechanisms are arranged on both sides of the impact arc plate 91. The injection molding jitter mechanism includes a transmission component 84. A U-shaped groove is opened on the inner wall of the upper end of the support base 51. An auxiliary abutting component is arranged inside the U-shaped groove. The auxiliary abutting component includes a convex plate fixedly connected with the bottom surface of the inner cavity of the U-shaped groove. A movable arm rod is rotatably connected to the upper end of the convex plate. Arc-shaped elastic strips fixedly connected with the inner wall of the U-shaped groove are respectively hinged on the outer surfaces of both sides of the movable arm rod. There are two groups of movable arm rods, and a guiding abutting wheel is correspondingly installed at the upper end of each group of movable arm rods. The outer surfaces of the guiding abutting wheels are respectively movably connected with the outer surface of the MPP power pipe body 1. When the MPP power pipe body 1 generates a certain degree of晃动 under the continuous jitter action of the impact arc plate 91, at this time, the guiding abutting wheels and the movable arm rods assist in supporting the bottom of the MPP power pipe body 1. And at this time, the arc-shaped elastic strips support the whole movable arm rod. The upward pressure makes the arc-shaped elastic strips generate an upward reverse elastic force, strengthening the supporting effect on the MPP power pipe body 1 and preventing the situation that the pipe body deviates due to excessive shaking force; the two ends of the MPP power pipe body 1 are centered and clamped through the power pipe clamping mechanism to prevent the injection molding filling cavity 231 of the power pipe from shifting during injection molding. By adding the injection molding jitter mechanism at the lower end of the MPP power pipe body 1, it is ensured that the impact arc plate 91 reciprocates to jitter the whole MPP power pipe body 1, vibrating out the gas to eliminate bubbles. At the same time, the transmission component 84 drives the two upper guiding wheels 85 to abut and clamp the MPP power pipe body 1, improving the stability during the injection molding production of the MPP power pipe body 1 and ensuring that the density of the masterbatch filling in the injection molding filling cavity 231 is uniform. It solves the problem that in the prior art, some gases are likely to enter during injection molding of the melt to generate bubbles, thereby reducing the density of the masterbatch filling. It can eliminate injection molding bubbles and enhance the anti-deformation performance of the pipe body. Embodiment 3

[0045] Refer to the appendix Figure 1-12On the basis of the second embodiment, in order to realize the continuous shaking of the injection molding masterbatch inside the injection molding filling cavity 231 in the MPP power pipe body 1, ensure the elimination of internal gas bubbles, and avoid the situation of filler fault: the inner surface of the mounting frame plate 8 is fixedly installed with a mounting stretching block 81, and the mounting stretching block 81 is provided with two groups, and the two groups of mounting stretching blocks 81 are symmetrically distributed about the vertical center line of the mounting frame plate 8, and the lower end of the mounting stretching block 81 is fixedly connected with a guide sleeve 83 fixedly connected to the inner bottom surface of the mounting frame plate 8, and the outer side surface of the guide sleeve 83 is fixedly connected with a reset spring 831, and the outer surface of the lower end of the reset spring 831 is fixedly connected with a lifting plate 82, and the inner wall of the lifting plate 82 and the lower end outer surface of the guide sleeve 83 are fixedly connected. The transmission assembly 84 is slidingly connected and includes a rack 841. The lower end of the rack 841 is fixedly connected to the upper surface of the lifting plate 82. The outer surface of the rack 841 is meshed and rotated with a meshing gear 842. The central inner surface of the meshing gear 842 is fixedly connected to a rotating rod 8421 that is rotatably connected to the inner wall of the support seat 51. The outer surface of the rotating rod 8421 is fixedly connected to a pulley 1 843. A pulley 2 844 is provided on the upper side of the pulley 1 843, and the outer surface of the pulley 2 844 is rotatably connected to the outer surface of the pulley 1 843 through a belt. When the electric telescopic rod 9 is controlled and driven, the piston rod at the output end of the electric telescopic rod 9 moves up and down, so that the protrusion 911 drives the lifting plate 82 and the electric telescopic rod 9 The whole is lifted synchronously, at this time, the inner wall of the lifting plate 82 slides with the inner wall of the guide sleeve 83 and squeezes the return spring 831 above, and at this time, the rack 841 moves up and down together with the lifting and lowering of the lifting plate 82, causing the meshing gear 842 and the external teeth of the rack 841 to mesh with each other, and then the meshing gear 842 rotates. Under the connection and rotation of the belt, the pulley 2 844 and the pulley 1 843 rotate synchronously. At this time, the guide wheel 85 rotates with the rotation of the pulley 2 844, thereby realizing the auxiliary contact and guidance of the upper end of the MPP power pipe body 1, and a stop block valve is fixedly provided at the lower end of the stretching block 81. The stop block valve is set just above the rack 841. When the rack Under the action of continuous lifting, 841 conflicts with the stop block valve and touches the stop valve switch, thereby ensuring that the electric telescopic rod 9 is closed, causing the impact arc plate 91 to disengage from the lower end of the MPP power pipe body 1, and an axle is fixedly installed on the central inner surface of the pulley 844, and a guide wheel 85 is fixedly connected to the outer surface of the axle. A support arm 851 is rotatably installed on the outer surface of one end of the axle, and the other end of the support arm 851 is fixedly connected to the upper surface of the installation stretching block 81. The reason for installing the support arm 851 on the upper end of the installation stretching block 81 is to support the guide wheel 85 and the transmission assembly 84 as a whole, to ensure the overall stability of the transmission assembly 84 during driving operation, and to ensure that the injection molding of the masterbatch in the pipe is more uniform. Embodiment 4

[0046] See attached Figure 1-12On the basis of the third embodiment, in order to achieve the overall stable limiting of the MPP power pipe body 1 during injection molding: the outer surface of one end of the rotating circular plate 71 is rotatably connected to the inner wall of the limiting plate 7, and a convex plate 711 is fixedly provided on the upper end of the rotating circular plate 71, and the auxiliary fine-tuning component 72 includes a fixed block 721 fixedly installed on the outer surface of one side of the limiting plate 7, and the outer surface of the fixed block 721 is rotatably connected to a rotating block 722, and a threaded rotating rod 723 is rotatably connected to the inner wall of the rotating block 722, and the outer surface of the threaded rotating rod 723 is threadedly connected to the threaded block 7 fixedly connected to the outer surface of the convex plate 711 12. A fixed cylinder 73 is fixedly provided on the outer surface of the limit plate 7. Three groups of fixed cylinders 73 are arranged in an array equidistantly about the central axis of the limit plate 7. A movable abutment rod 731 is rotatably connected to the outer surface of the fixed cylinder 73. A clamping roller 733 is rotatably installed on the end of the movable abutment rod 731 away from the fixed cylinder 73. The outer surface of the clamping roller 733 is movably connected to the outer surface of the MPP power pipe body 1. The outer surface of the movable abutment rod 731 is slidably connected to a sliding cylinder 732. A convex column is fixedly provided on the outer surface of the sliding cylinder 732. The outer surface of the convex column is rotatably connected to the outer inner wall of the rotating circular plate 71.

[0047] According to the pipe diameter size of the MPP power pipe body 1, the operator rotates the threaded rotating rod 723 manually or with an auxiliary tool. At this time, the outer surface of the threaded rotating rod 723 is threadedly adapted to the inner wall of the threaded block 712. At this time, the rotating circular plate 71 is driven by the convex plate 711 and the threaded block 712 to realize rotation. At this time, the convex column connected to the inner wall of the rotating circular plate 71 is movable, causing the three groups of movable supporting rods 731 and clamping rollers 733 connected to the outer end of the fixed cylinder 73 to move synchronously, realizing the equiaxial movement of the three groups of clamping rollers 733. According to the rotation angle of the rotating circular plate 71, it is ensured that the clamping rollers 733 limit the MPP power pipe bodies 1 of different pipe diameters. At the same time, the clamping rollers 733 and the surface of the MPP power pipe body 1 are movably connected, which will not affect the auxiliary shaking of the MPP power pipe body 1. The structure is simple and the operation is convenient. Embodiment 5

[0048] A corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure, processing equipment, and process, which is based on the above-mentioned corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure processing equipment, and the process of the corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure processing equipment includes the following steps:

[0049] Step 1: preparing the masterbatch of the outer tube and the inner tube;

[0050] Step 2: Clamp the power pipe to be filled by injection molding on the upper end of the support seat 51 to keep it stable;

[0051] Step 3: putting the masterbatch prepared in step 1 into the injection molding tank 6 for preheating, and injecting and extruding the preheated injection molding masterbatch into the injection molding filling cavity 231 on one side through the injection molding tube 61;

[0052] Step 4: Auxiliary shaking is performed on the bottom of the injection-molded MPP power pipe body 1, and the masterbatch inside the injection-molded filling cavity 231 is continuously shaken to reduce the density of the masterbatch melt and ensure that the injection-molded filling cavity 231 is tightly filled;

[0053] Step 5: Continue to fully fill the polypropylene masterbatch into a plurality of adjacent injection molding filling cavities 231;

[0054] Step 6: Cool the injection molding masterbatch and the power pipe as a whole to obtain the final product.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure, comprising a device base (5), characterized in that: A support base (51) is fixedly installed on the upper surface of the device base (5). An injection molding tank (6) is arranged on one side of the support base (51). The lower output end of the injection molding tank (6) is fixedly connected with an injection molding pipe (61). An empty groove for auxiliary limit installation is formed on the inner wall of the upper end of the support base (51). The empty groove is integrally in a "C" - shaped structure. A limit plate (7) and a mounting frame plate (8) are fixedly installed on the inner wall of the empty groove respectively. A power pipe clamping mechanism is arranged on the limit plate (7). The power pipe clamping mechanism includes a rotating circular plate (71) and an auxiliary fine - tuning component (72). The lower end of the mounting frame plate (8) is fixedly connected with an electric telescopic rod (9). The lower end of the electric telescopic rod (9) penetrates through the bottom surface of the support base (51). A convex block (911) is fixedly installed on the outer surface of the piston rod at the output end of the electric telescopic rod (9). An impact arc plate (91) is fixedly installed on the outer surface of the upper end of the piston rod. Injection molding jitter mechanisms are arranged on both sides of the impact arc plate (91). The injection molding jitter mechanism includes a transmission component (84). An installation stretching block (81) is fixedly installed on the inner surface of the mounting frame plate (8). There are two groups of the installation stretching blocks (81). The two groups of installation stretching blocks (81) are symmetrically distributed about the vertical mid - line of the mounting frame plate (8). The lower end of the installation stretching block (81) is fixedly connected with a guide sleeve (83) fixedly connected to the inner bottom surface of the mounting frame plate (8). A return spring (831) is fixedly connected to the outer side surface of the guide sleeve (83). The lower outer surface of the return spring (831) is fixedly connected with a lifting plate (82). The inner wall of the lifting plate (82) is slidably connected with the lower outer surface of the guide sleeve (83). The transmission component (84) includes a rack (841). The lower end of the rack (841) is fixedly connected with the upper surface of the lifting plate (82). A meshing gear (842) is rotatably meshed with the outer surface of the rack (841). A rotating rod (8421) rotatably connected to the inner wall of the support base (51) is fixedly connected to the inner surface of the center of the meshing gear (842). A pulley one (843) is fixedly connected to the outer surface of the rotating rod (8421). A pulley two (844) is arranged above the pulley one (843). The outer surface of the pulley two (844) is rotationally connected with the outer surface of the pulley one (843) through a belt. A shaft rod is fixedly installed on the inner surface of the center of the pulley two (844). A guide wheel (85) is fixedly connected to the outer surface of the shaft rod. A support arm (851) is rotatably installed on the outer surface of one end of the shaft rod. The other end of the support arm (851) is fixedly connected with the upper surface of the installation stretching block (81).

2. According to claim 1, a processing equipment for a corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure is characterized by: The outer surface of one end of the rotating circular plate (71) is rotatably connected to the inner wall of the limiting plate (7); a convex plate (711) is fixedly provided on the upper end of the rotating circular plate (71); the auxiliary fine-tuning component (72) comprises a fixed block (721) fixedly mounted on the outer surface of one side of the limiting plate (7); the outer surface of the fixed block (721) is rotatably connected to a rotating block (722); a threaded rotating rod (723) is rotatably connected to the inner wall of the rotating block (722); the outer surface of the threaded rotating rod (723) is threadedly connected to the threaded block (712) fixedly connected to the outer surface of the convex plate (711).

3. The processing equipment of the corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure according to claim 2 is characterized by: A fixed cylinder (73) is fixedly provided on the outer surface of the limit plate (7), and the fixed cylinders (73) are provided in three groups and are arranged in an array equidistantly about the central axis of the limit plate (7). The outer surface of the fixed cylinder (73) is rotatably connected to a movable abutment rod (731), and a clamping roller (733) is rotatably installed on one end of the movable abutment rod (731) away from the fixed cylinder (73), and the outer surface of the clamping roller (733) is movably connected to the outer surface of the MPP power pipe body (1).

4. The processing equipment of the corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure according to claim 3 is characterized by: The outer surface of the movable abutment rod (731) is slidably connected to a slide cylinder (732), and a convex column is fixedly provided on the outer surface of the slide cylinder (732), and the outer surface of the convex column is rotatably connected to the outer inner wall of the rotating circular plate (71).

5. A corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure, processing equipment, and process, which is realized based on the processing equipment of the corrosion-resistant, heat-resistant, and deformation-resistant MPP power pipe structure according to any one of claims 1 to 4, and is characterized by: The process of the corrosion-resistant, heat-resistant and deformation-resistant MPP power pipe structure processing equipment includes the following steps: Step 1: preparing the masterbatch of the outer tube and the inner tube; Step 2: clamp the electric power pipe to be filled by injection molding on the upper end of the support seat (51) to keep it stable; Step 3: putting the masterbatch prepared in step 1 into the injection molding tank (6) for preheating, and injecting and extruding the preheated injection molding masterbatch into the injection molding filling cavity (231) on one side through the injection molding tube (61); Step 4: Auxiliary shaking is performed on the bottom of the injection-molded MPP power pipe body (1), and the masterbatch inside the injection-molded filling cavity (231) is continuously shaken to reduce the density of the masterbatch melt and ensure that the injection-molded filling cavity (231) is tightly filled; Step 5: Continue to fully fill the polypropylene masterbatch into a plurality of adjacent injection molding filling cavities (231); Step 6: Cool the injection molding masterbatch and the power pipe as a whole to obtain the final product.

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