Quick-cooling wire embedding mold of resistance wire stable embedding device for reinforced polyethylene electric melting pipe fitting

Abstract

The invention relates to a quick-cooling wire embedding mold of a reinforced polyethylene electric melting pipe fitting resistance wire stable embedding device, and discloses a quick-cooling wire embedding mold which is characterized in that a cooling medium is introduced into the hollow wire embedding mold through a cooling pipe and a cooling medium circulation groove to quickly cool a hot-melted polyethylene raw material and the inner wall of a reinforced polyethylene pipe section; and the cooling medium quickly flows back through the return pipe, so that the quick-cooling wire embedding mold is circularly cooled. The device is characterized in that the device is composed of a wire embedding die, a backflow connector, a sealing isolation plate, a cooling vertical groove, a backflow pipe, a backflow hole, a cooling pipe, a cooling connector and a cooling medium circulation groove, the wire embedding die is of a hollow structure, the backflow pipe is arranged in the wire embedding die and located in the middle of the wire embedding die, the backflow hole is formed in the side wall of one end of the backflow pipe, and the cooling medium circulation groove is formed in the sealing isolation plate. A backflow connecting port communicated with the backflow pipe is formed in the other end of the wire embedding mold, the sealing isolation plate is arranged in the wire embedding mold, a cooling medium circulation groove is formed in the sealing isolation plate, and a cooling vertical groove is formed in the inner wall of the side face of the wire embedding mold.

Description

Technical Field

[0001] The invention discloses a quick-cooling wire embedding die for a reinforced polyethylene electric fusion pipe fitting resistance wire stable embedding device, which belongs to the technical field of water supply and drainage, and particularly relates to a quick-cooling wire embedding die that can quickly cool the hot-melted polyethylene raw material and the inner wall of the reinforced polyethylene pipe section by introducing a cooling medium into a hollow wire embedding die, and the cooling medium can quickly reflux and circulate cooling. Background Art

[0002] In actual use of pipes, multiple wire wrapped pipes need to be laid end to end in a groove to meet the drainage distance requirements. However, wire wrapped pipes cannot be directly hot-melt welded because of the steel wire wrapped inside the pipe wall. Therefore, polyethylene expansion hot-melt connection, polyethylene electric fusion pipe connection or rubber sealing ring connection are required for end to end connection. However, in the above connection methods, the connection part is made of pure polyethylene material and has a low pressure bearing capacity. The pressure bearing capacity of the connected wire wrapped pipe is lower than the pressure bearing capacity of the wire wrapped pipe itself. If the pressure bearing capacity of the wire wrapped pipe itself is used for water supply and drainage, it is easy to cause the connection to be subjected to excessive pressure and rupture. If the pressure bearing capacity of the connection is used for water supply and drainage, it will cause a waste of drainage capacity of a large section of wire wrapped pipe.

[0003] In order to improve the above problems, the applicant filed another Chinese invention patent application entitled "A Reinforced Polyethylene Electric Fusion Pipe Fitting and Processing Method", which uses a cutting knife to open a spiral groove on the inner wall of the reinforced polyethylene pipe section, and at the same time bury the resistance wire in the groove, and bury the resistance wire by extrusion to form a reinforced polyethylene electric fusion pipe fitting. By connecting multiple steel wire winding pipes through the reinforced polyethylene electric fusion pipe fitting, the pressure bearing capacity of the connection can be effectively improved to keep it consistent with the steel wire winding pipe. However, in the processing method of cutting grooves and burying resistance wires, during the wire burying process, the resistance wire is easy to fall off or deviate from the groove, resulting in wire running, which affects the quality of the electric fusion pipe fitting.

[0004] In order to improve the above-mentioned problems, the applicant filed another Chinese invention patent application entitled "A device for stably embedding resistance wire in reinforced polyethylene electric fusion pipe fittings". After heating the resistance wire by electricity to melt the inner wall of the reinforced polyethylene pipe section, hot-melt polyethylene raw material is added between the wire embedding mold and the reinforced polyethylene pipe section to make the resistance wire and the inner wall of the reinforced polyethylene pipe section fully adhere to each other. After cooling, the resistance wire can be more stably embedded in the pipe section without wire running. In the process of adding hot-melt polyethylene raw material, the wire embedding mold and the resistance wire are driven to rotate slowly by a rotating motor, so that the added hot-melt polyethylene raw material can be evenly distributed between the wire embedding mold and the reinforced polyethylene pipe section, ensuring that the inner diameter of the pipe section after the resistance wire is embedded meets the requirements. However, after the device has finished replenishing the hot-melt polyethylene raw material, it takes a long time to wait for the hot-melt polyethylene raw material and the inner wall of the reinforced polyethylene pipe section to completely cool down, and the wire embedding speed is slow. Summary of the invention

[0005] In order to improve the above situation, the present invention provides a quick-cooling wire embedding mold for a reinforced polyethylene electric fusion pipe resistance wire stable embedding device, which provides a quick-cooling wire embedding mold that allows cooling medium to be introduced into the hollow wire embedding mold through a cooling pipe and a cooling medium circulation groove to quickly cool the hot-melt polyethylene raw material and the inner wall of the reinforced polyethylene pipe section, and allows the cooling medium to quickly reflux through a reflux pipe for cyclic cooling.

[0006] The invention discloses a quick-cooling wire embedding die for a reinforced polyethylene electric fusion pipe resistance wire stable embedding device, which is realized as follows: the quick-cooling wire embedding die for a reinforced polyethylene electric fusion pipe resistance wire stable embedding device comprises a wire embedding die, a reflux connection port, a sealing isolation plate, a cooling vertical groove, a reflux pipe, a reflux hole, a cooling pipe, a cooling connection port and a cooling medium flow groove. The wire embedding mold is a hollow structure. The return pipe is placed in the wire embedding mold and is located in the middle of the wire embedding mold. Preferably, one end of the reflux pipe is sealed to the inner wall of one end of the wire embedding mold, and the other end of the reflux pipe is sealed to the inner wall of the other end of the wire embedding mold. A reflux hole is opened on the side wall of one end of the reflux pipe. Preferably, there are a plurality of the reflux holes, and the plurality of the reflux holes are arranged equidistantly along the circumference of the reflux pipe. The other end of the wire embedding die is provided with a reflux connection port connected to the reflux pipe. The sealing isolation plate is placed in the wire embedding mold, the edge of the sealing isolation plate is sealed and connected to the wire embedding mold, and a perforation corresponding to the reflux pipe is opened in the middle of the sealing isolation plate. The sealing isolation plate is provided with cooling medium flow grooves. Preferably, there are a plurality of cooling medium flow grooves, and the plurality of cooling medium flow grooves are arranged equidistantly along the circumference of the sealing isolation plate. There are cooling vertical grooves on the inner wall of the wire embedding mold. Preferably, there are a plurality of cooling vertical grooves, and the plurality of cooling vertical grooves are arranged equidistantly along the circumference of the wire embedding die. Preferably, the cooling vertical groove is located between the sealing isolation plate and the inner wall of one end of the wire embedding die. A cooling connection port is provided at the other end of the thread embedding die, one end of a cooling pipe is placed in the cooling connection port, and the other end of the cooling pipe extends into the thread embedding die; Furthermore, a heat insulation layer is disposed on the outer wall of the return pipe, the heat insulation layer is wrapped on the surface of the return pipe, and the surface of the heat insulation layer is wrapped with a waterproof cloth; Furthermore, the cooling medium circulation groove is replaced by an arc groove, the sealing isolation plate is provided with an arc groove, the arc grooves are provided in multiple groups, the multiple groups of arc grooves are arranged radially along the sealing isolation plate, two adjacent groups of arc grooves are arranged alternately, one group of arc grooves has multiple arc grooves, the multiple arc grooves in the same group are arranged equidistantly along the circumference of the sealing isolation plate, and the width of the arc groove close to the edge of the sealing isolation plate is greater than the width of the arc groove close to the center of the sealing isolation plate; The present invention also relates to a device for stably embedding a resistance wire of a reinforced polyethylene electric fusion pipe fitting, which comprises an embedding wire support mechanism, an injection molding mechanism and a rotating embedding wire mechanism. The wire embedding support mechanism is composed of a wire embedding workbench and an isolation frame. The isolation frame is placed on the edge of the wire embedding workbench. Preferably, the wire embedding workbench is a hollow rectangular structure. Preferably, the isolation frame is divided into a horizontal bar and a vertical bar, the horizontal bar is bent multiple times to form an isolation bar, and the vertical bar connects the horizontal bar and the wire embedding workbench. The injection molding mechanism is composed of a hot-melt polyethylene delivery pipe, a support plate, a delivery pipe support rod and a delivery pipe limit card. The support plate is placed on the isolation frame, and one end of the conveying pipe support rod is placed on the support plate. Preferably, the conveying pipe support rod first extends vertically for a distance from one end to the other end, then extends horizontally, and then extends vertically again. The conveying pipe limit card is placed on the conveying pipe support rod. Preferably, there are a plurality of conveying pipe limit clamps, and the plurality of conveying pipe limit clamps are arranged equidistantly on the conveying pipe support rod. The hot-melt polyethylene delivery pipe can be detachably placed on the delivery pipe support rod through the delivery pipe limit card. The rotary thread embedding mechanism is composed of a thread embedding die, a reinforced polyethylene pipe section support ring, a reinforced polyethylene pipe section limit plate, a limit bolt, a resistance wire, a rotary motor, a motor box, a die support plate and a rotary limit column. The motor box is placed in the thread embedding workbench, the rotating motor is placed in the motor box, and the motor shaft of the rotating motor passes through the thread embedding workbench. Preferably, a sealed bearing is arranged between the motor shaft of the rotating motor and the wall of the wire embedding workbench. The mold support plate is placed on the motor shaft of the rotating motor and there is a distance between it and the thread embedding workbench. A plurality of rotation limiting columns are arranged between the mold support plate and the thread embedding workbench, one end of the rotation limiting column is connected to the thread embedding workbench, and the other end of the rotation limiting column is provided with a rotating ball, and the rotating ball is in contact with the mold support plate. Preferably, a plurality of the rotation limiting columns are arranged equidistantly along the circumference of the mold support plate and are located at the edge of the mold support plate. The wire embedding mold can be detachably placed on the mold support plate. Preferably, the mold support plate is provided with a plurality of engaging grooves, one end of the wire embedding mold is provided with engaging posts corresponding to the plurality of engaging grooves, and the wire embedding mold is detachably placed on the mold support plate through the engaging posts and the engaging grooves. Preferably, the other end of the wire embedding die is an arc-shaped structure. The resistance wire is wound on the wire embedding die. Preferably, the resistance wire is divided into two sections and placed in the wire embedding mold, the two sections of the resistance wire are electrically connected, and the two sections of the resistance wire are respectively close to the two ends of the wire embedding mold. The reinforced polyethylene pipe section support ring is placed on the wire embedding workbench, and the mold support plate is located inside the reinforced polyethylene pipe section support ring. Preferably, a sealed bearing is disposed between the inner ring wall of the reinforced polyethylene pipe segment support ring and the mold support plate. Preferably, the height of the reinforced polyethylene pipe section support ring is higher than the height of the mold support plate. The limit plate of the reinforced polyethylene pipe section is placed on the support ring of the reinforced polyethylene pipe section. Preferably, there are a plurality of the reinforced polyethylene pipe segment limiting plates, and the plurality of the reinforced polyethylene pipe segment limiting plates are arranged equidistantly along the circumferential direction of the reinforced polyethylene pipe segment support ring. The reinforced polyethylene pipe section limit plate is provided with a threaded hole, and the limit bolt is threadedly connected to the reinforced polyethylene pipe section limit plate through the threaded hole. Preferably, a rubber pad is disposed at the end of the limiting bolt; Furthermore, a resistance wire routing groove is provided on the reinforced polyethylene pipe section support ring, and there are a plurality of resistance wire routing grooves, which are arranged equidistantly along the circumference of the reinforced polyethylene pipe section support ring, one end of the resistance wire routing groove is flush with the inner ring surface of the reinforced polyethylene pipe section support ring, and the other end of the resistance wire routing groove is flush with the outer ring surface of the reinforced polyethylene pipe section support ring; Furthermore, the reinforced polyethylene pipe section support ring is provided with anti-skid patterns, the anti-skid patterns are cross-twill patterns, and the anti-skid patterns are located between the inner ring of the reinforced polyethylene pipe section support ring and the reinforced polyethylene pipe section limit plate. Beneficial Effects

[0007] 1. By introducing cooling medium into the hollow wire embedding mold to quickly cool the hot-melt polyethylene raw material and the inner wall of the reinforced polyethylene pipe section, the cooling time can be effectively shortened and the wire embedding speed can be increased.

[0008] 2. The cooling medium can quickly flow back into the refrigerator for re-refrigeration, circulating cooling, and reusing the cooling medium to save resources.

[0009] 3. Simple structure and easy to use.

[0010] 4. Low cost and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural diagram of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 2 It is a structural schematic diagram of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 3 It is a structural schematic diagram of Embodiment 2 of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 4 It is a structural schematic diagram of Embodiment 3 of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 5 It is a structural schematic diagram of a quick-cooling wire embedding die of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 6 It is a three-dimensional structural diagram of a quick-cooling wire embedding die of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Figure 7 It is a structural schematic diagram of a quick-cooling wire embedding die of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting of the present invention, which only shows the structure of the sealing isolation plate; Figure 8 It is a structural schematic diagram of Embodiment 2 of a quick-cooling wire embedding die of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention; Fig. 9 It is a structural schematic diagram of Example 3 of a quick-cooling wire embedding die of a device for stably embedding resistance wire of a reinforced polyethylene electric fusion pipe fitting according to the present invention. Attached photos

[0012] The components include: hot melt polyethylene conveying pipe (1), support plate (2), isolation frame (3), wire embedding workbench (4), wire embedding mold (5), reinforced polyethylene pipe section support ring (6), reinforced polyethylene pipe section limit plate (7), limit bolt (8), resistance wire (9), conveying pipe support rod (10), conveying pipe limit card (11), rotating motor (12), motor box (13), mold support plate (14), rotating limit column (15), resistance wire routing groove (16), anti-slip groove (17), return connection port (18), sealing isolation plate (19), cooling vertical groove (20), return pipe (21), return hole (22), cooling pipe (23), cooling connection port (24), cooling medium flow groove (25), thermal insulation layer (26), arc groove (27) DETAILED DESCRIPTION Example 1

[0013] The invention discloses a quick-cooling wire embedding die (5) of a device for stably embedding a resistance wire (9) of a reinforced polyethylene electric fusion pipe fitting, comprising a wire embedding die (5), a reflux connection port (18), a sealing isolation plate (19), a cooling vertical groove (20), a reflux pipe (21), a reflux hole (22), a cooling pipe (23), a cooling connection port (24) and a cooling medium flow groove (25). The wire embedding mold (5) is a hollow structure. Preferably, the wall thickness of the wire embedding die (5) is greater than 5 mm, so as to ensure the supporting strength of the wire embedding die (5) and prevent it from being deformed due to pressure or thermal stress during the wire embedding process, thereby affecting the inner diameter of the reinforced polyethylene electric fusion pipe section after forming; The return pipe (21) is placed in the wire embedding mold (5) and is located in the middle of the wire embedding mold (5). Preferably, one end of the return pipe (21) is sealedly connected to the inner wall of one end of the wire embedding mold (5), and the other end of the return pipe (21) is sealedly connected to the inner wall of the other end of the wire embedding mold (5). Preferably, the return pipe (21) and the wire embedding mold (5) are integrally formed. A reflux hole (22) is formed on the side wall of one end of the reflux pipe (21). Preferably, there are a plurality of the reflux holes (22), and the plurality of the reflux holes (22) are arranged equidistantly along the circumference of the reflux pipe (21). The other end of the wire embedding die (5) is provided with a reflux connection port (18) which is connected to the reflux pipe (21). The sealing isolation plate (19) is placed in the wire embedding mold (5), the edge of the sealing isolation plate (19) is sealed and connected to the wire embedding mold (5), and a through hole corresponding to the return pipe (21) is opened in the middle of the sealing isolation plate (19). The sealing isolation plate (19) is provided with a cooling medium flow groove (25). Preferably, there are a plurality of cooling medium circulation grooves (25), and the plurality of cooling medium circulation grooves (25) are arranged equidistantly along the circumference of the sealing isolation plate (19). The inner wall of the side of the wire embedding die (5) is provided with a cooling vertical groove (20). Preferably, there are a plurality of cooling vertical grooves (20), and the plurality of cooling vertical grooves (20) are arranged equidistantly along the circumference of the wire embedding die (5). Preferably, the cooling vertical groove (20) is located between the sealing isolation plate (19) and the inner wall of one end of the wire embedding mold (5). Preferably, the wire embedding mold (5) is made of a heat-conducting material. The other end of the wire embedding mold (5) is provided with a cooling connection port (24), one end of the cooling pipe (23) is placed in the cooling connection port (24), and the other end of the cooling pipe (23) extends into the wire embedding mold (5); When in use, after the hot-melt polyethylene raw material is added between the wire embedding mold (5) and the reinforced polyethylene pipe section, the reinforced polyethylene pipe section and the wire embedding mold (5) are removed together and placed in a cooling area, the cooling pipe (23) is connected to the cooling medium outlet of the refrigerator, and the return connection port (18) is connected to the cooling medium inlet of the refrigerator. The cooling medium flows out of the cooling pipe (23) and passes through the cooling medium flow groove (25) into the space of the wire embedding mold (5) located below the sealing isolation plate (19), thereby cooling the side wall of the wire embedding mold (5). Then, the hot-melt polyethylene raw material and the inner wall of the reinforced polyethylene pipe section are cooled, so that the hot-melt polyethylene is quickly cooled. The cooling medium after heat exchange enters the return pipe (21) from the return hole (22), and then enters the refrigerator from the return connection port (18) for cooling. The cooled cooling medium then cools the wire embedding mold (5) through the cooling pipe (23). The cooling is circulated without the need to replenish the cooling medium. After the cooling is completed, the wire embedding mold (5) is removed, and the resistance wire (9) is stably embedded in the reinforced polyethylene pipe section. Example 2

[0014] The difference between this embodiment and embodiment 1 is that: a heat insulating layer (26) is disposed on the outer wall of the return pipe (21), the heat insulating layer (26) is wrapped around the surface of the return pipe (21), and the surface of the heat insulating layer (26) is wrapped with a waterproof cloth; when in use, the heat insulating layer (26) can isolate the cooling medium that has been refluxed after heat exchange from the fresh cooling medium, ensuring that the fresh cooling medium maintains a relatively low temperature to cool the hot-melt polyethylene, and at the same time the waterproof cloth can prevent condensed water from reducing the heat insulating effect of the heat insulating layer (26); Example 3

[0015] The difference between this embodiment and embodiment 1 is that the cooling medium circulation groove (25) is replaced by an arc groove (27), the sealing isolation plate (19) is provided with an arc groove (27), there are multiple groups of the arc grooves (27), the multiple groups of the arc grooves (27) are arranged radially along the sealing isolation plate (19), two adjacent groups of the arc grooves (27) are arranged alternately, one group of the arc grooves (27) has multiple arc grooves (27), and the multiple arc grooves (27) in the same group are arranged equidistantly along the circumference of the sealing isolation plate (19), and the arc grooves (27) adjacent to the sealing isolation plate (19) are arranged at an equal distance from each other. The width of the arc groove (27) at the edge of the sealing isolation plate (19) is greater than the width of the arc groove (27) near the center of the sealing isolation plate (19); when in use, the flow of the cooling medium can be accelerated, so that the fresh cooling medium enters the wire embedding mold (5) from the edge of the sealing isolation plate (19) at a faster speed, reducing the contact with the return pipe (21); at the same time, the staggered arc grooves (27) can optimize the distribution of the cooling medium, ensuring that the cooling medium flows evenly through the inner wall of the wire embedding mold (5), thereby improving the cooling uniformity; The design of the sealing isolation plate (19) cooperating with the wire embedding die (5) to support the return pipe (21) can prevent the return pipe (21) from vibrating or even shaking during the flow of the cooling medium, thereby affecting the stability of the return pipe (21), thereby improving the overall reliability of the cooling die; The cooling medium flow groove (25) is designed to guide the cooling medium in cooperation with the cooling vertical groove (20), so that the cooling medium can be evenly distributed to various areas of the wire embedding mold (5), thereby preventing the cooling medium from gathering in certain areas, ensuring that each area of ​​the wire embedding mold (5) can be fully cooled, thereby improving cooling uniformity; There are a plurality of reflux holes (22), and the plurality of reflux holes (22) are arranged equidistantly along the circumference of the reflux pipe (21), so that the cooling medium that has undergone heat exchange can quickly enter the reflux pipe (21) and flow back into the refrigerator for re-refrigeration, thereby preventing the cooling medium from accumulating in the wire embedding mold (5) and contacting with the fresh cooling medium, thereby transferring heat to the fresh cooling medium and reducing the cooling effect; The plurality of cooling medium flow grooves (25) are arranged equidistantly along the circumference of the sealing isolation plate (19), so that the cooling medium can flow to the inner wall of the wire embedding mold (5) more evenly, ensuring that each area of ​​the inner wall of the wire embedding mold (5) can be fully cooled, thereby improving cooling uniformity; There are a plurality of cooling vertical grooves (20), and the plurality of cooling vertical grooves (20) are arranged equidistantly along the circumference of the wire embedding die (5), which can ensure the supporting strength of the wire embedding die (5) while increasing the contact area with the cooling medium, thereby improving the cooling effect; The purpose is achieved by allowing cooling medium to be introduced into the hollow wire embedding mold (5) through the cooling pipe (23) and the cooling medium flow groove (25) to quickly cool the hot-melted polyethylene raw material and the inner wall of the reinforced polyethylene pipe section, and by allowing the cooling medium to quickly reflux through the reflux pipe (21) for cyclic cooling.

[0016] The invention discloses a device for stably embedding a resistance wire (9) of a reinforced polyethylene electric fusion pipe fitting, which comprises an embedding wire support mechanism, an injection molding mechanism and a rotating embedding wire mechanism. The wire embedding support mechanism is composed of a wire embedding workbench (4) and an isolation frame (3). The isolation frame (3) is placed on the edge of the wire embedding workbench (4). Preferably, the wire embedding workbench (4) is a hollow rectangular structure. Preferably, the isolation frame (3) is divided into a horizontal bar and a vertical bar, the horizontal bar is bent multiple times to form an isolation bar, and the vertical bar connects the horizontal bar and the wire embedding workbench (4). Preferably, the bottom of the thread embedding workbench (4) is provided with a plurality of supporting feet for providing support for the workbench and ensuring that the workbench remains stable during the thread embedding process; The injection molding mechanism is composed of a hot-melt polyethylene delivery pipe (1), a support plate (2), a delivery pipe support rod (10) and a delivery pipe limit card (11). The support plate (2) is placed on the isolation frame (3), and one end of the conveying pipe support rod (10) is placed on the support plate (2). Preferably, the conveying pipe support rod (10) first extends vertically for a distance from one end to the other end, then extends horizontally, and then extends vertically again. The conveying pipe limit card (11) is placed on the conveying pipe support rod (10). Preferably, there are a plurality of the conveying pipe limiting clamps (11), and the plurality of the conveying pipe limiting clamps (11) are arranged at equal intervals on the conveying pipe supporting rod (10). The hot-melt polyethylene delivery pipe (1) is detachably placed on the delivery pipe support rod (10) via a delivery pipe limiter (11). The rotary wire embedding mechanism comprises a wire embedding die (5), a reinforced polyethylene pipe section support ring (6), a reinforced polyethylene pipe section limit plate (7), a limit bolt (8), a resistance wire (9), a rotary motor (12), a motor box (13), a die support plate (14) and a rotary limit column (15). The motor box (13) is placed in the thread embedding workbench (4), the rotary motor (12) is placed in the motor box (13), and the motor shaft of the rotary motor (12) passes through the thread embedding workbench (4). Preferably, a sealed bearing is disposed between the motor shaft of the rotating motor (12) and the wall of the thread embedding workbench (4). The mold support plate (14) is placed on the motor shaft of the rotating motor (12) and is spaced apart from the wire embedding workbench (4). A plurality of rotation limiting columns (15) are arranged between the mold support plate (14) and the thread embedding workbench (4); one end of the rotation limiting column (15) is connected to the thread embedding workbench (4); the other end of the rotation limiting column (15) is provided with a rotation ball; the rotation ball is in contact with the mold support plate (14). Preferably, the plurality of rotation limiting columns (15) are arranged equidistantly along the circumference of the mold support plate (14) and are located at the edge of the mold support plate (14). The wire embedding mold (5) is detachably placed on the mold support plate (14). Preferably, the mold support plate (14) is provided with a plurality of engaging grooves, one end of the wire embedding mold (5) is provided with engaging posts corresponding to the plurality of engaging grooves, and the wire embedding mold (5) is detachably placed on the mold support plate (14) by means of the engaging posts cooperating with the engaging grooves. Preferably, the other end of the wire embedding mold (5) is an arc-shaped structure. Preferably, the wire embedding mold (5) is made of a metal material with good thermal conductivity. The resistance wire (9) is wound on the wire embedding mold (5). Preferably, the resistance wire (9) is divided into two sections and placed in the wire embedding mold (5), the two sections of the resistance wire (9) are electrically connected, and the two sections of the resistance wire (9) are respectively close to the two ends of the wire embedding mold (5). The reinforced polyethylene pipe section support ring (6) is placed on the wire embedding workbench (4), and the mold support plate (14) is located inside the reinforced polyethylene pipe section support ring (6). Preferably, a sealed bearing is disposed between the inner ring wall of the reinforced polyethylene pipe section support ring (6) and the mold support plate (14). Preferably, the height of the reinforced polyethylene pipe section support ring (6) is higher than the height of the mold support plate (14). The reinforced polyethylene pipe segment limiting plate (7) is placed on the reinforced polyethylene pipe segment supporting ring (6). Preferably, there are a plurality of the reinforced polyethylene pipe segment limiting plates (7), and the plurality of the reinforced polyethylene pipe segment limiting plates (7) are arranged equidistantly along the circumference of the reinforced polyethylene pipe segment support ring (6). The reinforced polyethylene pipe section limiting plate (7) is provided with a threaded hole, and the limiting bolt (8) is threadedly connected to the reinforced polyethylene pipe section limiting plate (7) through the threaded hole. Preferably, a rubber pad is provided at the end of the limiting bolt (8); When in use, the hot-melt polyethylene conveying pipe (1) is connected to the hot-melt high-pressure conveyor, the reinforced polyethylene pipe section is placed on the reinforced polyethylene pipe section support ring (6), the outer wall of the reinforced polyethylene pipe section is closely attached to the reinforced polyethylene pipe section limit plate (7), and the inner wall is closely attached to the resistance wire (9), the limit bolt (8) is rotated, the reinforced polyethylene pipe section is supported and clamped, the resistance wire (9) is energized, the resistance wire (9) is heated, the wire embedding mold (5) and the inner wall of the reinforced polyethylene pipe section are heated, the inner wall of the reinforced polyethylene pipe section is melted, the power is turned off, and the rotating motor (12) is started. The rotating motor (12) drives the mold support plate (14) to rotate slowly and uniformly through the motor shaft, thereby driving the wire embedding mold (5) and the resistance wire (9) to rotate slowly. The hot-melt polyethylene raw material is uniformly rotated, and the hot-melt polyethylene conveying pipe (1) is used to replenish the hot-melt polyethylene raw material between the wire embedding mold (5) and the inner wall of the pipe section. During the rotation process, the hot-melt polyethylene raw material is evenly distributed between the wire embedding mold (5) and the inner wall of the pipe section, and is fully adhered to the molten layer of the inner wall of the pipe section to avoid stratification. At the same time, the resistance wire (9) is gradually embedded in the molten layer of the inner wall of the reinforced polyethylene pipe section. After the raw material replenishment is completed, the rotating motor (12) is controlled to stop, the limit bolt (8) is loosened, and the reinforced polyethylene pipe section and the wire embedding mold (5) are taken down together and placed in a cooling area to wait for cooling. After the cooling is completed, the wire embedding mold (5) is removed, and the resistance wire (9) is stably embedded in the reinforced polyethylene pipe section. Example 2

[0017] The difference between this embodiment and embodiment 1 is that: a resistance wire routing groove (16) is formed on the reinforced polyethylene pipe section support ring (6), and there are a plurality of resistance wire routing grooves (16), and the plurality of resistance wire routing grooves (16) are arranged equidistantly along the circumference of the reinforced polyethylene pipe section support ring (6), one end of the resistance wire routing groove (16) is flush with the inner ring surface of the reinforced polyethylene pipe section support ring (6), and the other end of the resistance wire routing groove (16) is flush with the outer ring surface of the reinforced polyethylene pipe section support ring (6); when in use, the resistance wire routing groove (16) can enable the resistance wire (9) to be routed smoothly and stably on the reinforced polyethylene pipe section support ring (6) for electrical heating, while ensuring that the stability of the placement of the reinforced polyethylene pipe section is not affected when the resistance wire (9) is routed; Example 3

[0018] The difference between this embodiment and embodiment 2 is that: the reinforced polyethylene pipe section support ring (6) is provided with anti-slip grooves (17), the anti-slip grooves (17) are cross-twill grooves, and the anti-slip grooves (17) are located between the inner ring of the reinforced polyethylene pipe section support ring (6) and the reinforced polyethylene pipe section limit plate (7); when in use, the anti-slip grooves (17) can make the placement of the reinforced polyethylene pipe section more stable, and cooperate with the clamping force of the limit bolts (8) to effectively prevent the reinforced polyethylene pipe section from sliding with the rotation of the wire embedding mold (5), thereby affecting the quality of the wire embedding; The limiting bolt (8) is designed to limit the position of the reinforced polyethylene pipe segment in cooperation with the limiting plate (7) of the reinforced polyethylene pipe segment. By accurately positioning the reinforced polyethylene pipe segment, a uniform distance is maintained between each part of the pipe segment and the wire embedding mold (5), thereby avoiding the thickness difference between each part of the pipe segment when adding the hot-melt polyethylene raw material, which affects the embedding quality of the resistance wire (9); The end of the limit bolt (8) is provided with a rubber pad, which can prevent the limit bolt (8) from causing hard squeezing and scratching of the reinforced polyethylene pipe section during the process of supporting and clamping the reinforced polyethylene pipe section, thereby affecting the overall strength of the reinforced polyethylene electric fusion pipe fitting after forming; The conveying pipe support rod (10) is designed to cooperate with the conveying pipe limit card (11) to support the hot-melt polyethylene conveying pipe (1). The hot-melt polyethylene will vibrate during high-pressure conveying. The limit card fixes the hot-melt polyethylene conveying pipe (1) on the conveying pipe support rod (10), thereby providing stable support for the conveying pipe and ensuring stable and uniform infusion of the hot-melt polyethylene. The plurality of rotation limiting columns (15) are arranged equidistantly along the circumference of the mold support plate (14) and are located at the edge of the mold support plate (14), so as to form a relatively smooth support for the edge of the mold support plate (14), thereby preventing the edge of the mold support plate (14) from deviating up and down during the uniform rotation, thereby ensuring the stable rotation of the wire embedding mold (5) and further ensuring the stability of the wire embedding; The mold support plate (14) is provided with a plurality of engaging grooves, and one end of the wire embedding mold (5) is provided with engaging columns corresponding to the plurality of engaging grooves. The wire embedding mold (5) is detachably placed on the mold support plate (14) by means of the engaging columns cooperating with the engaging grooves. The wire embedding mold (5) is detachable and can be removed together with the reinforced polyethylene pipe section after the wire is embedded and then removed from the mold after cooling. The wire embedding and cooling are performed simultaneously, which is highly efficient. The height of the reinforced polyethylene pipe section support ring (6) is higher than the height of the mold support plate (14), and the sealing bearing can prevent the hot-melt polyethylene raw material from flowing down and entering between the mold support plate (14) and the wire embedding mold (5), thereby ensuring the stability of the wire embedding; The purpose is to achieve the purpose of being able to melt the inner wall of the reinforced polyethylene pipe section by heating the resistance wire (9) with electricity, and then adding hot-melt polyethylene raw material between the wire embedding mold (5) and the reinforced polyethylene pipe section, so that the resistance wire (9) and the inner wall of the reinforced polyethylene pipe section are fully adhered, and after cooling, the resistance wire (9) can be embedded in the pipe section more stably without the occurrence of wire running.

[0019] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] It should be further pointed out that, when describing the above specific embodiments, for the sake of simplicity and clarity, only the differences between the above specific embodiments are described, but those skilled in the art should know that the above specific embodiments themselves are also independent technical solutions.

Claims

1. A quick-cooling wire embedding die for a device for embedding a resistance wire stably in a reinforced polyethylene electric fusion pipe fitting, characterized by: The invention is composed of a buried wire mould, a reflux connection port, a sealing isolation plate, a cooling vertical groove, a reflux pipe, a reflux hole, a cooling pipe, a cooling connection port and a cooling medium circulation groove. The buried wire mould is a hollow structure. The reflux pipe is placed in the buried wire mould and is located in the middle of the buried wire mould. A reflux hole is opened on the side wall of one end of the reflux pipe, and a reflux connection port connected to the reflux pipe is opened on the other end of the buried wire mould. The sealing isolation plate is placed in the buried wire mould, and a cooling medium circulation groove is opened on the sealing isolation plate. A cooling vertical groove is opened on the inner wall of the side of the buried wire mould, and a cooling connection port is opened on the other end of the buried wire mould. One end of the cooling pipe is placed in the cooling connection port, and the other end of the cooling pipe extends into the buried wire mould.

2. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that A heat insulation layer is arranged on the outer wall of the return pipe, the heat insulation layer is wrapped on the surface of the return pipe, and the surface of the heat insulation layer is wrapped with a waterproof cloth.

3. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that The cooling medium circulation groove is replaced by an arc groove, and the sealing isolation plate is provided with an arc groove. There are multiple groups of the arc grooves, and the multiple groups of the arc grooves are arranged radially along the sealing isolation plate. Two adjacent groups of the arc grooves are staggered. One group has multiple arc grooves, and the multiple arc grooves in the same group are equidistantly arranged along the circumference of the sealing isolation plate. The width of the arc groove close to the edge of the sealing isolation plate is greater than the width of the arc groove close to the center of the sealing isolation plate.

4. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that One end of the reflux pipe is sealedly connected to the inner wall of one end of the wire embedding mold, and the other end of the reflux pipe is sealedly connected to the inner wall of the other end of the wire embedding mold.

5. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that There are multiple reflux holes, which are equidistantly arranged along the circumference of the reflux pipe, so that the cooling medium that has undergone heat exchange can quickly enter the reflux pipe and flow back into the refrigerator for re-refrigeration, avoiding its accumulation in the buried wire mold and contact with the fresh cooling medium to transfer heat to the fresh cooling medium, thereby reducing the cooling effect.

6. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that The edge of the sealing isolation plate is sealed and connected to the wire embedding mold, and a through hole corresponding to the reflux pipe is opened in the middle of the sealing isolation plate.

7. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1 is characterized in that There are multiple cooling medium circulation grooves, and the multiple cooling medium circulation grooves are equidistantly arranged along the circumference of the sealing isolation plate, which can make the cooling medium flow to the inner wall of the buried wire mold more evenly, ensuring that each area of ​​the inner wall of the buried wire mold can be fully cooled, thereby improving cooling uniformity.

8. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1, characterized in that There are multiple cooling vertical grooves, and the multiple cooling vertical grooves are arranged equidistantly along the circumference of the wire embedding mold, which can ensure the supporting strength of the wire embedding mold while increasing the contact area with the cooling medium, thereby improving the cooling effect.

9. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1, characterized in that The cooling vertical groove is located between the sealing isolation plate and the inner wall of one end of the wire embedding mold.

10. The rapid cooling wire embedding die of the device for stably embedding the resistance wire of reinforced polyethylene electric fusion pipe fittings according to claim 1, characterized in that The reinforced polyethylene electric fusion pipe resistance wire stable embedding device, the reinforced polyethylene electric fusion pipe resistance wire stable embedding device consists of an embedding wire support mechanism, an injection molding mechanism and a rotating embedding wire mechanism, the embedding wire support mechanism consists of an embedding wire workbench and an isolation frame, the isolation frame is placed on the edge of the embedding wire workbench, the embedding wire workbench is a hollow rectangular structure, the isolation frame is divided into a cross bar and a vertical bar, the cross bar is bent multiple times to form an isolation bar, the vertical bar connects the cross bar and the embedding wire workbench, the injection molding mechanism consists of a hot-melt polyethylene conveying pipe, a support plate, a conveying pipe support rod and a conveying pipe limit card, the support plate is placed on the isolation frame, one end of the conveying pipe support rod is placed on the support plate, the conveying pipe support rod first extends vertically from one end to the other end for a distance and then extends horizontally, and then Then extend vertically, the conveying pipe limit card is placed on the conveying pipe support rod, there are multiple conveying pipe limit cards, and the multiple conveying pipe limit cards are equidistantly arranged on the conveying pipe support rod, and the hot-melt polyethylene conveying pipe is detachably placed on the conveying pipe support rod through the conveying pipe limit card. The rotating wire embedding mechanism is composed of a wire embedding mold, a reinforced polyethylene pipe segment support ring, a reinforced polyethylene pipe segment limit plate, a limit bolt, a resistance wire, a rotating motor, a motor box, a mold support plate and a rotating limit column. The motor box is placed in the wire embedding workbench, and the rotating motor is placed in the motor box. The motor shaft of the rotating motor passes through the wire embedding workbench, and a sealed bearing is placed between the motor shaft of the rotating motor and the box wall of the wire embedding workbench. The mold support plate is placed on the motor shaft of the rotating motor, and there is a space between the mold support plate and the wire embedding workbench. At a distance, a plurality of rotating limit columns are arranged between the mold support plate and the wire embedding workbench, one end of the rotating limit column is connected to the wire embedding workbench, and a rotating ball is arranged at the other end of the rotating limit column, and the rotating ball is in contact with the mold support plate, and a plurality of the rotating limit columns are arranged equidistantly along the circumference of the mold support plate and are located at the edge of the mold support plate. The wire embedding mold is detachably placed on the mold support plate, and a plurality of engaging grooves are opened on the mold support plate. A engaging column corresponding to the plurality of engaging grooves is arranged at one end of the wire embedding mold, and the wire embedding mold is detachably placed on the mold support plate through the engaging column and the engaging groove. The other end of the wire embedding mold is an arc-shaped structure, and the resistance wire is wound on the wire embedding mold. The resistance wire is placed in the wire embedding mold in two sections. The two sections of the resistance wire The wires are electrically connected, and the two sections of the resistance wire are respectively close to the two ends of the buried wire mold. The reinforced polyethylene pipe segment support ring is placed on the buried wire workbench, and the mold support plate is located in the reinforced polyethylene pipe segment support ring. A sealed bearing is arranged between the inner ring wall of the reinforced polyethylene pipe segment support ring and the mold support plate. The height of the reinforced polyethylene pipe segment support ring is higher than the height of the mold support plate. The reinforced polyethylene pipe segment limit plate is placed on the reinforced polyethylene pipe segment support ring. There are multiple reinforced polyethylene pipe segment limit plates, and the multiple reinforced polyethylene pipe segment limit plates are equidistantly arranged along the circumference of the reinforced polyethylene pipe segment support ring. The reinforced polyethylene pipe segment limit plates are provided with threaded holes, and the limit bolts are threadedly connected to the reinforced polyethylene pipe segment limit plates through the threaded holes, and rubber pads are arranged at the ends of the limit bolts.

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