Forming die for processing ultrahigh polyethylene wear-resistant pipe based on pipeline compensator lining

Abstract

The invention relates to the technical field of plastic forming, and particularly discloses a forming mold for processing an ultrahigh polyethylene wear-resistant pipe based on a pipeline compensator lining, which comprises a base, a lower mold and an upper mold, and further comprises an inner core which is in the shape of a hollow cylinder and is arranged in a mold cavity, and the end cover is sleeved on the outer wall of the inner core. The upper mold is moved upwards, then the lifting seat is moved upwards, the inner core drives the lining to ascend, the bottom of the cured lining is separated from the lower mold, and finally the drawing rod, the inner core and the end cover are driven to move outwards through the second telescopic part and the third telescopic part to take out the lining. And finally, the lining is pulled outwards while rotating from the outer wall of the inner core to complete demolding, compared with a demolding mode in the prior art, the demolding mode is faster, and the lining is not prone to deformation during demolding.

Description

Technical Field

[0001] The invention relates to the technical field of plastic molding, in particular to a molding die based on processing of ultra-high polyethylene wear-resistant pipes lined with pipeline compensators. Background Art

[0002] The pipe compensator lined with ultra-high polyethylene wear-resistant pipe is a composite pipe structure that combines the characteristics of the pipe compensator and the ultra-high polyethylene wear-resistant pipe. The parts of this composite pipe structure can be produced by injection molds. In the prior art of plastic molding of pipe fittings, when demolding, since the injection molding direction of the pipe fittings is vertical, the pipe fittings need to be lifted up to complete the demolding. For example, the patent entitled a plastic pipe fitting injection molding machine disclosed in the prior art publication number CN221391881U adopts this method. The device includes an injection molding part and a plastic pipe fitting mold, and one side of the injection molding part is fixed with The injection molding tube is bent downward, and a processing platform is fixedly provided below one side of the injection molding tube corresponding to the injection molding part, and a through-type transverse chute is opened in the processing platform directly below the corresponding injection molding tube, a transverse movement mechanism is provided in the transverse movement mechanism, and a transversely moving plastic pipe fitting mold is connected through the transverse movement mechanism, water cooling devices are provided on both sides of the processing platform corresponding to the transverse movement groove, and a material discharge mechanism is provided directly above the plastic pipe fitting mold on the injection molding part corresponding to the processing platform, which drives the plastic pipe fitting mold to reciprocate and transversely move, and can be moved to the water cooling device after injection molding for rapid cooling and molding, and then the plastic pipe fittings in the plastic pipe fitting mold can be discharged; When the above technology is used for demoulding, the side wall of the pipe is relatively thin, and the pipe is easily deformed during the upward lifting process. In addition, since the pipe has not been completely cooled and solidified during demoulding, it is difficult for the deformed pipe to return to the desired shape. Therefore, the yield rate of pipes processed by this method needs to be improved. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] The present invention provides a forming mold based on the processing of ultra-high polyethylene wear-resistant pipe lined with pipeline compensators, which can solve the problem of easy deformation during demoulding. The specific scheme is as follows: The forming mold based on the processing of the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator includes a base, a lower mold and an upper mold. The top of the upper mold is also provided with an injection port, and also includes: The inner core is a hollow cylindrical configuration and is disposed inside the mold cavity; An end cap, sleeved on the outer wall of the inner core; A molding cavity is formed between the inner wall of the lower mold, the inner wall of the upper mold, the outer wall of the inner core and the end of the end cover, and the injection material is injected into the molding cavity from the injection port and forms an inner lining after being cured; A pull rod, which is installed in the middle of the inner core and is used to drive the inner core to slide and play a demoulding role; A second telescopic member, wherein a telescopic end of the second telescopic member is fixedly connected to one end of the drawer rod, and the drawer rod can be driven to slide reciprocally by the second telescopic member; The third telescopic member, the telescopic end of the third telescopic member is fixedly connected to the outer wall of the end cover, and the second telescopic member and the third telescopic member drive the pulling rod, the inner core and the end cover to move outward to bring out the lining, and finally the lining is pulled outward from the outer wall of the inner core while rotating to complete the demoulding.

[0005] Preferably, it also includes: A slide bar, the slide bar is fixedly connected to the top of the lower mold, the four corners of the upper mold are slidably connected to the slide bar, and the top of the slide bar is fixedly connected to the top frame; A first telescopic member, wherein the first telescopic member is fixedly mounted on the top of the top frame, the bottom end of the first telescopic member is fixedly connected to the top end of the upper mold, and the upper mold can be driven to slide up and down through the first telescopic member.

[0006] Preferably, it also includes: A lifting seat is installed at one end of the base, and the fixed ends of the second telescopic member and the third telescopic member are fixedly installed on the top of the lifting seat; A motor, mounted at one end of the base; The semicircular rod is connected to the output end of the motor. The semicircular rod is rotatably installed above the base, and the top of the semicircular rod contacts the bottom of the lifting seat.

[0007] Preferably, it also includes: A limit rod is connected to the top of the base. The limit rod is slidably connected to the hole at the bottom of the lifting seat, and the inner wall of the hole contacts the outer wall of the limit rod, so that the lifting seat can only move up and down along the plumb line direction. The semicircular rod is driven to rotate by the motor. When the semicircular part of the semicircular rod is against the bottom of the lifting seat, the lifting seat can be driven to rise.

[0008] Preferably, it also includes: A spiral groove, wherein the spiral groove is formed on the inner wall of the inner core; A sliding block, the sliding block is fixedly connected to the outer wall of the draw rod, the sliding block can slide inside the spiral groove, and when the draw rod slides back and forth, the inner core can be caused to rotate under the action of the sliding block; Among them, the pulling rod is driven by the second telescopic part to slide inside the inner core, thereby prompting the inner core to rotate in the mold. During the rotation process, the outer wall of the inner core is separated from the solidified lining. At this time, the upper mold moves upward again to complete the demoulding of the upper mold, and the lifting seat moves upward to complete the demoulding of the lower mold. Finally, the second telescopic part and the third telescopic part drive the pulling rod, the inner core and the end cover to move outward to bring out the lining.

[0009] Preferably, a heat dissipation component is also included, and the heat dissipation component includes: A cooling cavity, the cooling cavity is opened inside the inner core, the cooling cavity is arranged as an annular cavity, the cooling cavity is close to the outer wall of the inner core, so that the heat of the outer wall of the inner core can be quickly exchanged with the coolant in the cooling cavity; A coolant inlet and outlet is provided at one end of the cooling cavity, and the coolant inlet and outlet penetrates the outer wall of the inner core; The sealing core is installed in the coolant inlet and outlet, and a sealing ring is provided at the position where the sealing core abuts against the coolant inlet and outlet.

[0010] Preferably, the heat dissipation component further includes: A retreat groove is provided on the inner wall of the cooling cavity, and the sealing core is slidably connected to the inner wall of the retreat groove; A limiting column, wherein the limiting column is fixedly connected to the inner wall of the retreat groove, a limiting hole is arranged in the middle of the sealing core, and the limiting hole is slidably connected to the limiting column; The first spring has two ends connected to the inner wall of the retreat groove and the end of the sealing core respectively, and the end of the sealing core is pressed against the edge of the coolant inlet and outlet by the extrusion force of the first spring to play a sealing role.

[0011] Preferably, the heat dissipation component further includes: A water injection pipe is installed in the upper mold, a water injection port is opened in the side wall of the upper mold, the outer wall of the water injection port is connected to a water source, and the water injection pipe is slidably installed in the water injection port; A first stopper is connected to the end of the water injection pipe, and the water injection pipe can be plugged into the groove at the end of the sealing core through the first stopper to prevent the two from being offset during water injection; A water injection hole is provided at the end of the water injection pipe; A first sliding block is connected to the end of the water injection pipe, and the first sliding block is slidably connected to the inner wall of the water injection port; A second spring, two ends of which are respectively connected to the outer wall of the first sliding block and the inner wall of the water injection port.

[0012] Preferably, it also includes: A drain pipe is installed in the lower mold, a drain port is provided at the bottom of the lower mold, and the drain pipe is slidably connected to the inner wall of the drain port; The second limiting head is connected to the top end of the drain pipe.

[0013] Preferably, it also includes: Drain hole, opened at the top of the drain pipe; A second sliding block is connected to the bottom end of the drain pipe, and the second sliding block is slidably connected to the inner wall of the drain outlet; A fourth telescopic member, two ends of which are respectively connected to the outer wall of the second sliding block and the inner wall of the drain outlet; By setting up a water injection pipe and a drainage pipe, the cooling liquid can be filled and discharged respectively, and the cooling liquid at the drainage port is collected and dissipated through a circulation pipe and a cooling device and then injected into the water injection port to realize the circulation of the cooling liquid.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. Rapid injection molding is completed by injecting the injection material into the molding cavity from the injection port and forming an inner lining after solidification. Then, the upper mold is moved up, and then the lifting seat is moved up, so that the inner core drives the inner lining to rise, so that the bottom of the solidified inner lining is separated from the lower mold. Finally, the second telescopic member and the third telescopic member drive the pulling rod, the inner core and the end cover to move outward to bring out the inner lining. Finally, the inner lining is pulled outward from the outer wall of the inner core while rotating. Compared with the demolding method of the prior art, it is faster and the inner lining is not easy to deform during demolding.

[0015] 2. The second telescopic member drives the pulling rod to slide inside the inner core, thereby causing the inner core to rotate in the mold. During the rotation, the outer wall of the inner core is separated from the solidified lining. At this time, the upper mold moves upward again to complete the demoulding of the upper mold, and the lifting seat moves upward to complete the demoulding of the lower mold. Finally, the second telescopic member and the third telescopic member drive the pulling rod, the inner core and the end cover to move outward to bring out the lining. In this way, the demoulding is performed. Since the rotation of the inner core is carried out inside the mold, the lining is completely filled in the molding cavity at this time, so it will not deform, further improving the anti-deformation effect.

[0016] 3. When the high-pressure water source is connected to the water injection port, under the action of high pressure, the water pressure overcomes the pressure of the second spring to squeeze the water injection pipe toward the sealing core, and then continues to squeeze to overcome the pressure of the first spring to squeeze the sealing core inward. After squeezing to the limit position, the water inside the water injection pipe is injected into the cooling cavity from the water injection hole, thereby achieving the effect of water injection. Heat exchange occurs between the coolant and the heat on the surface of the inner core, thereby quickly dissipating the heat of the inner core, so that the lining can be quickly solidified, the molding efficiency is improved, and the lining is not easy to deform and stick when demolding.

[0017] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is an overall stereogram of the present invention; Figure 2 It is a three-dimensional cross-sectional view of the present invention; Figure 3 A three-dimensional diagram of the drawer rod and the inner core of the present invention; Figure 4 It is a half-section diagram of the present invention; Figure 5 The figure is a structural diagram of the installation of the lower mold, the upper mold and the inner core of the present invention; Figure 6 This is a separation structure diagram of the lower mold, the upper mold and the inner core of the present invention; Figure 7 It is a three-dimensional diagram after the upper mold of the present invention is moved upward; Figure 8 It is a cross-sectional view of the water injection state of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle; Fig.10 A three-dimensional diagram of the water injection pipe and the sealing core of the present invention; Fig.11 It is a cross-sectional view of the drainage state of the present invention; Fig.12 For the present invention Fig.11 Enlarged view of point B in the middle; Fig.13 A three-dimensional diagram of a drain pipe and a sealing core of the present invention; Fig.14 A three-dimensional diagram of the upper mold and the lower mold of the present invention; Fig.15 It is a stereoscopic diagram of the motor and the semicircular rod of the present invention.

[0019] The reference numerals are as follows: 101, base; 102, lower mold; 103, upper mold; 104, slide bar; 105, first telescopic member; 106, injection port; 107, inner core; 1071, spiral groove; 108, molding cavity; 109, pull rod; 1091, slide block; 110, second telescopic member; 111, lifting seat; 112, end cover; 113, heat dissipation cavity; 114, third telescopic member; 2, lining; 3, heat dissipation assembly; 301, cooling cavity; 302, seal Sealing core; 303, retreat groove; 304, first spring; 305, limiting column; 306, water injection pipe; 307, first limiting head; 308, water injection hole; 309, water injection port; 310, first slider; 311, second spring; 312, drain pipe; 313, second limiting head; 314, drain hole; 315, second slider; 316, fourth telescopic member; 317, drain port; 401, motor; 402, semicircular rod; 403, limiting rod. DETAILED DESCRIPTION

[0020] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0021] Embodiment 1: Figure 1 As shown, this embodiment provides a molding die for processing ultra-high polyethylene wear-resistant pipes lined with pipeline compensators. Ultra-high polyethylene usually refers to ultra-high molecular weight polyethylene (UHMWPE for short), which is a high-performance polymer with a molecular weight of more than 1 million. Injection molding is an important method in the processing of ultra-high molecular weight polyethylene, especially suitable for producing products with complex shapes and high precision requirements. It includes: Figure 1 The base 101 is shown; The lower mold 102 is fixedly connected to the top of the base 101 and can be integrally formed with the base 101; The upper mold 103 is movably mounted on the top of the lower mold 102. The bottom of the upper mold 103 can be aligned with the top of the lower mold 102 to form a mold body. A mold cavity is provided at one end of the upper mold 103 adjacent to the lower mold 102. The shape of the mold cavity matches the shape of the outer wall of the liner 2. Also includes Figure 2 The injection port 106 shown is opened in the middle of the top of the upper mold 103; The inner core 107 is a hollow cylindrical shape and is disposed inside the mold cavity. The inner core 107 is made of a high temperature resistant metal, specifically a nickel-based alloy, and has a smooth surface. In order to reduce adhesion, a layer of anti-adhesion material (such as titanium nitride, chromium nitride, etc.) can be plated on its surface; Also includes Figure 3 The end cap 112 is sleeved on the outer wall of the inner core 107; Figure 2 As shown, a molding cavity 108 is formed between the inner wall of the lower mold 102, the inner wall of the upper mold 103, the outer wall of the inner core 107 and the end of the end cover 112. The injection material is injected into the molding cavity 108 from the injection port 106 and can be formed after being cured. Figure 4 Liner 2 shown; It also includes a pull rod 109, which is installed in the middle of the inner core 107 and is used to drive the inner core 107 to slide, thereby achieving demoulding effect; Also includes Figure 2 The slide bar 104 shown is fixedly connected to the top of the lower mold 102, the four corners of the upper mold 103 are slidably connected to the slide bar 104, and the top of the slide bar 104 is fixedly connected to the top frame; A first telescopic member 105, wherein the first telescopic member 105 is fixedly mounted on the top of the top frame, and the bottom end of the first telescopic member 105 is fixedly connected to the top end of the upper mold 103, and the upper mold 103 can be driven to slide up and down by the first telescopic member 105, thereby achieving the purpose of demoulding; Also includes Figure 3 The second telescopic member 110 shown, the telescopic end of the second telescopic member 110 is fixedly connected to one end of the drawer rod 109, and the drawer rod 109 can be driven to slide back and forth by the second telescopic member 110; A third telescopic member 114, wherein a telescopic end of the third telescopic member 114 is fixedly connected to the outer wall of the end cover 112; A lifting seat 111 is installed at one end of the base 101, and the fixed ends of the second telescopic member 110 and the third telescopic member 114 are fixedly installed on the top of the lifting seat 111. The lifting seat 111 can move up and down relative to the base 101 and the lower mold 102 under the drive of the driving device; In the above scheme, the lower mold 102, the upper mold 103, the inner core 107 and the end cover 112 are provided to form a molding cavity 108, and the injection material is injected into the molding cavity 108 from the injection port 106 and the liner 2 is formed after solidification, and then as shown in FIG. Figure 7As shown, by moving the upper mold 103 upward, and then moving the lifting seat 111 upward, the inner core 107 drives the liner 2 to rise, so that the bottom of the solidified liner 2 is separated from the lower mold 102, and finally the second telescopic member 110 and the third telescopic member 114 drive the pull rod 109, the inner core 107 and the end cover 112 to move outward to bring out the liner 2, and finally the liner 2 is pulled outward from the outer wall of the inner core 107 while rotating, so as to complete demoulding. Compared with the demoulding method of the prior art, it is faster and the liner 2 is not easy to be deformed during demoulding; Example 2: Continue to read Figure 3 , Figure 5 , Figure 6 The technical solution of this embodiment is different from that of the first embodiment in that this embodiment further includes: A spiral groove 1071 , wherein the spiral groove 1071 is formed on the inner wall of the inner core 107 ; A sliding block 1091, the sliding block 1091 is fixedly connected to the outer wall of the pulling rod 109, the sliding block 1091 can slide inside the spiral groove 1071, when the pulling rod 109 slides back and forth, under the action of the sliding block 1091, the inner core 107 can be caused to rotate; In the above scheme, a spiral groove 1071 is provided on the inner wall of the inner core 107, and a sliding block 1091 is provided on the outer wall of the pulling rod 109. When the lining 2 needs to be demolded after solidification, the pulling rod 109 is driven by the second telescopic member 110 to slide into the inner part of the inner core 107, thereby causing the inner core 107 to rotate in the mold. During the rotation, the outer wall of the inner core 107 is separated from the solidified lining 2. At this time, the upper mold 103 moves upward again to complete the demolding of the upper mold 103, and the lifting seat 111 moves upward to complete the demolding of the lower mold 102. Finally, the second telescopic member 110 and the third telescopic member 114 drive the pulling rod 109, the inner core 107 and the end cover 112 to move outward to bring out the lining 2. Demolding is performed in this way. Since the rotation of the inner core 107 is carried out inside the mold, the lining 2 is completely filled in the molding cavity 108 at this time, so it will not deform, further improving the anti-deformation effect.

[0022] Embodiment 3: Figure 8 , Fig. 9 , Fig.10 As shown, the technical solution of this embodiment is different from that of the second embodiment in that, in order to increase the cooling and curing speed of the lining 2, a heat dissipation component 3 is provided, and the heat dissipation component 3 includes: A cooling cavity 301 is provided inside the inner core 107 and is arranged as an annular cavity and is close to the outer wall of the inner core 107, so that the heat of the outer wall of the inner core 107 can be quickly exchanged with the coolant in the cooling cavity 301, thereby achieving a rapid cooling effect; A coolant inlet and outlet is provided at one end of the cooling cavity 301 , and the coolant inlet and outlet penetrates the outer wall of the inner core 107 ; The sealing core 302 is installed in the coolant inlet and outlet. The sealing core 302 has a sealing ring at the position where it abuts against the coolant inlet and outlet to prevent coolant leakage; The retreat groove 303 is formed on the inner wall of the cooling chamber 301, and the sealing core 302 is slidably connected to the inner wall of the retreat groove 303; A limiting post 305, wherein the limiting post 305 is fixedly connected to the inner wall of the retreat groove 303, a limiting hole is provided in the middle of the sealing core 302, the limiting hole is slidably connected to the limiting post 305, and a protrusion is provided on the top of the limiting post 305, so as to prevent the sealing core 302 from escaping from the retreat groove 303 when sliding, causing leakage of coolant; A first spring 304, wherein two ends of the first spring 304 are respectively connected to the inner wall of the retreat groove 303 and the end of the sealing core 302, and through the extrusion force of the first spring 304, the end of the sealing core 302 is pressed against the edge of the coolant inlet and outlet to achieve a sealing effect; A water injection pipe 306 is installed in the upper mold 103. A water injection port 309 is provided in the side wall of the upper mold 103. The outer wall of the water injection port 309 is connected to a water source. The water injection pipe 306 is slidably installed in the water injection port 309. A first stopper 307 is connected to the end of the water injection pipe 306. The first stopper 307 allows the water injection pipe 306 to be plugged into the groove at the end of the sealing core 302 to prevent the two from being offset during water injection; A water injection hole 308 is provided at the end of the water injection pipe 306; A first slider 310 is connected to the end of the water injection pipe 306 , and the first slider 310 is slidably connected to the inner wall of the water injection port 309 ; A second spring 311, two ends of which are respectively connected to the outer wall of the first sliding block 310 and the inner wall of the water injection port 309; In the above scheme, when the high-pressure water source is connected to the water injection port 309, under the action of high pressure, the water pressure overcomes the pressure of the second spring 311 to squeeze the water injection pipe 306 toward the sealing core 302, and then continues to squeeze to overcome the pressure of the first spring 304 to squeeze the sealing core 302 inward. After squeezing to the limit position, the water inside the water injection pipe 306 is injected into the cooling cavity 301 from the water injection hole 308, thereby achieving the effect of water injection; like Fig.11 , Fig.12 , Fig.13 As shown, the heat dissipation component 3 also includes: A drain pipe 312 is installed in the lower mold 102. A drain port 317 is provided at the bottom of the lower mold 102. The drain pipe 312 is slidably connected to the inner wall of the drain port 317. The second limiting head 313 is connected to the top of the drain pipe 312; A drainage hole 314 is provided at the top of the drainage pipe 312; A second slider 315 is connected to the bottom end of the drain pipe 312, and the second slider 315 is slidably connected to the inner wall of the drain port 317; A fourth telescopic member 316, two ends of which are respectively connected to the outer wall of the second sliding block 315 and the inner wall of the drain port 317; A heat dissipation cavity 113 is provided inside the upper mold 103 and the lower mold 102. Through holes are provided at both ends of the heat dissipation cavity 113, and the through holes are used to connect with water pipes and circulation equipment. In the above scheme, the inner core 107 is rotated by pulling the pull rod 109, so that the central axis of the sealing core 302 is coaxial with the drain pipe 312, and then the drain pipe 312 is driven to slide upward by the fourth telescopic member 316, so that the top of the drain pipe 312 squeezes the sealing core 302 to the limit position, so that the coolant in the cooling cavity 301 flows from the drain hole 314 to the drain pipe 312, and finally is discharged from the drain port 317, thereby achieving the purpose of draining; In summary, this embodiment can respectively realize the filling and discharge of the coolant by setting the water injection pipe 306 and the drainage pipe 312, and collects and dissipates the coolant at the drainage port 317 through the circulation pipe and the cooling equipment and then injects it into the water injection port 309 to realize the circulation of the coolant.

[0023] like Fig.14 , Fig.15 As shown, the lifting structure of the lifting seat 111 includes the following parts: The motor 401 is mounted at one end of the base 101; A semicircular rod 402 is connected to the output end of the motor 401. The semicircular rod 402 is rotatably mounted above the base 101, and the top of the semicircular rod 402 contacts the bottom of the lifting seat 111. A limit rod 403 is connected to the top of the base 101. The limit rod 403 is slidably connected to the hole at the bottom of the lifting seat 111, and the inner wall of the hole contacts the outer wall of the limit rod 403, so that the lifting seat 111 can only move up and down along the plumb line direction; In the above solution, the semicircular rod 402 is driven to rotate by the motor 401. When the semicircular part of the semicircular rod 402 abuts against the bottom of the lifting seat 111, the lifting seat 111 can be driven to rise. In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0026] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A molding die for processing a pipeline compensator lined with ultra-high polyethylene wear-resistant pipe, comprising a base (101), a lower die (102) and an upper die (103), wherein the top of the upper die (103) is also provided with an injection port (106), characterized in that: Also includes: The inner core (107) is a hollow cylindrical shape and is disposed inside the mold cavity; An end cover (112) sleeved on the outer wall of the inner core (107); A molding cavity (108) is formed between the inner wall of the lower mold (102), the inner wall of the upper mold (103), the outer wall of the inner core (107), and the end of the end cover (112); a molding material is injected into the molding cavity (108) from the injection port (106) and is cured to form an inner lining (2); A pull rod (109), the pull rod (109) being installed in the middle of the inner core (107) and used to drive the inner core (107) to slide and play a demoulding role; a second telescopic member (110), wherein the telescopic end of the second telescopic member (110) is fixedly connected to one end of the drawer rod (109), and the drawer rod (109) can be driven to slide back and forth by the second telescopic member (110); A third telescopic member (114), wherein the telescopic end of the third telescopic member (114) is fixedly connected to the outer wall of the end cover (112), and the second telescopic member (110) and the third telescopic member (114) drive the pull rod (109), the inner core (107) and the end cover (112) to move outwards, thereby bringing out the inner lining (2), and finally, the inner lining (2) is pulled outwards from the outer wall of the inner core (107) while being rotated to complete demoulding.

2. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 1 is characterized in that: Also includes: A sliding rod (104), the sliding rod (104) being fixedly connected to the top of the lower mold (102), the four corners of the upper mold (103) being slidably connected to the sliding rod (104), and the top of the sliding rod (104) being fixedly connected to the top frame; A first telescopic member (105), wherein the first telescopic member (105) is fixedly mounted on the top of the top frame, and the bottom end of the first telescopic member (105) is fixedly connected to the top end of the upper mold (103), and the upper mold (103) can be driven to slide up and down through the first telescopic member (105).

3. The forming mold based on the processing of the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 1 is characterized in that: Also includes: A lifting seat (111) is mounted on one end of the base (101), and fixed ends of the second telescopic member (110) and the third telescopic member (114) are both fixedly mounted on the top of the lifting seat (111); A motor (401) is mounted on one end of the base (101); The semicircular rod (402) is connected to the output end of the motor (401). The semicircular rod (402) is rotatably mounted above the base (101), and the top of the semicircular rod (402) contacts the bottom of the lifting seat (111).

4. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 3 is characterized in that: Also includes: A limit rod (403) is connected to the top of the base (101). The limit rod (403) is slidably connected to a hole at the bottom of the lifting seat (111), and the inner wall of the hole contacts the outer wall of the limit rod (403), so that the lifting seat (111) can only move up and down along the plumb line direction. The semicircular rod (402) is driven to rotate by the motor (401). When the semicircular part of the semicircular rod (402) contacts the bottom of the lifting seat (111), the lifting seat (111) can be driven to rise.

5. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 1, characterized in that: Also includes: A spiral groove (1071), wherein the spiral groove (1071) is formed on the inner wall of the inner core (107); A sliding block (1091), the sliding block (1091) being fixedly connected to the outer wall of the pulling rod (109), the sliding block (1091) being able to slide inside the spiral groove (1071), and when the pulling rod (109) slides back and forth, the inner core (107) can be caused to rotate under the action of the sliding block (1091); The second telescopic member (110) drives the pull rod (109) to slide inside the inner core (107), thereby causing the inner core (107) to rotate in the mold. During the rotation, the outer wall of the inner core (107) is separated from the solidified lining (2). At this time, the upper mold (103) moves upward to complete the demoulding of the upper mold (103), and the lifting seat (111) moves upward to complete the demoulding of the lower mold (102). Finally, the second telescopic member (110) and the third telescopic member (114) drive the pull rod (109), the inner core (107) and the end cover (112) to move outward to bring out the lining (2).

6. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 1, characterized in that: It also includes a heat dissipation component (3), the heat dissipation component (3) comprising: A cooling cavity (301), the cooling cavity (301) being opened inside the inner core (107), the cooling cavity (301) being arranged as an annular cavity, the cooling cavity (301) being close to the outer wall of the inner core (107), so that the heat of the outer wall of the inner core (107) can be quickly exchanged with the coolant in the cooling cavity (301); A cooling liquid inlet and outlet is provided at one end of the cooling cavity (301), and the cooling liquid inlet and outlet penetrates the outer wall of the inner core (107); The sealing core (302) is installed in the coolant inlet and outlet, and a sealing ring is provided at the position where the sealing core (302) abuts against the coolant inlet and outlet.

7. The forming mold based on the processing of the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 6 is characterized in that: The heat dissipation component (3) further comprises: A retreat groove (303) is provided on the inner wall of the cooling cavity (301), and the sealing core (302) is slidably connected to the inner wall of the retreat groove (303); A limiting column (305), the limiting column (305) being fixedly connected to the inner wall of the retreat groove (303), a limiting hole being arranged in the middle of the sealing core (302), the limiting hole being slidably connected to the limiting column (305); A first spring (304), wherein two ends of the first spring (304) are respectively connected to the inner wall of the retreat groove (303) and the end of the sealing core (302), and through the squeezing force of the first spring (304), the end of the sealing core (302) is pressed against the edge of the coolant inlet and outlet to play a sealing role.

8. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 7, characterized in that: The heat dissipation component (3) further comprises: A water injection pipe (306) is installed in the upper mold (103); a water injection port (309) is provided in the side wall of the upper mold (103); an outer wall of the water injection port (309) is connected to a water source; and the water injection pipe (306) is slidably installed in the water injection port (309); A first stopper (307) is connected to the end of the water injection pipe (306), and the water injection pipe (306) can be plugged into the groove at the end of the sealing core (302) through the first stopper (307), so as to prevent the two from being offset during water injection; A water injection hole (308) is provided at the end of the water injection pipe (306); A first sliding block (310) is connected to the end of the water injection pipe (306), wherein the first sliding block (310) is slidably connected to the inner wall of the water injection port (309); A second spring (311), wherein two ends of the second spring (311) are respectively connected to the outer wall of the first sliding block (310) and the inner wall of the water injection port (309).

9. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 6, characterized in that: Also includes: A drainage pipe (312) is installed in the lower mold (102); a drainage port (317) is provided at the bottom of the lower mold (102); and the drainage pipe (312) is slidably connected to the inner wall of the drainage port (317); The second limiting head (313) is connected to the top end of the drainage pipe (312).

10. The forming die for processing the ultra-high polyethylene wear-resistant pipe lined with the pipeline compensator according to claim 9, characterized in that: Also includes: A drainage hole (314) is provided at the top of the drainage pipe (312); A second sliding block (315) is connected to the bottom end of the drain pipe (312), and the second sliding block (315) is slidably connected to the inner wall of the drain outlet (317); A fourth telescopic member (316), two ends of which are respectively connected to the outer wall of the second sliding block (315) and the inner wall of the drain outlet (317); By providing a water injection pipe (306) and a drainage pipe (312), the cooling liquid can be respectively filled and discharged, and the cooling liquid at the drainage port (317) is collected and cooled by a circulation pipe and a cooling device and then injected into the water injection port (309), thereby realizing the circulation of the cooling liquid.

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