Fluorine lining method for mold pressing of tetrafluoro four-way pipeline

Abstract

The invention relates to the technical field of tetrafluoro four-way pipelines, in particular to a fluorine lining method for a molded tetrafluoro four-way pipeline, which comprises a fluorine lining frame, fluorine pipe frames are fixedly connected to four sides of the side surface of the fluorine lining frame, an electric push rod is arranged at one end of each fluorine pipe frame, and guide seats are arranged on four sides of the inner wall of the fluorine lining frame. A glue uniformizing ring seat is arranged at one end of the guide seat, a four-way pipe body is arranged in the center of the interior of the fluorine-lined frame, the front face of the fluorine-lined frame is movably connected with a front adjusting seat, and the back face of the fluorine-lined frame is movably connected with a rear adjusting seat. Through the arrangement of the fluorine lining frame, the fluorine pipe frame, the electric push rod, the guide seat, the glue uniformizing ring seat, the four-way pipe body, the front adjusting seat, the rear adjusting seat, the first air control pump machine and the second air control pump machine, the equipment can carry out more adaptive positioning and mold pressing operation on the four-way polytetrafluoroethylene pipeline; a worker firstly places a four-way pipe body needing to be lined with fluorine on the back face of the front adjusting seat.

Description

Technical Field

[0001] The invention relates to the technical field of polyfluoro four-way pipes, in particular to a fluorine lining method for a molded polyfluoro four-way pipe. Background Art

[0002] Polytetrafluoroethylene, also known as Teflon, is commonly known as the "King of Plastics". It is a high molecular polymer made from tetrafluoroethylene as a monomer. It has excellent heat resistance and cold resistance. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance and its friction coefficient is extremely low. Therefore, it can be used as a lubricant and has become an ideal coating for the inner layer of easy-to-clean water pipes. Pipe fittings are a general term for parts in the pipeline system that play the role of connection, control, direction change, diversion, sealing, and support. Fluorine-lined pipes and accessories enjoy the reputation of "King of Plastics". It has excellent temperature resistance and corrosion resistance, and is an ideal conveying equipment for highly corrosive media such as nitric acid, sulfuric acid, hydrofluoric acid, phosgene, chlorine, aqua regia, mixed acid, bromide and other organic solvents. Fluorine-lined valves, also known as fluoroplastic-lined corrosion-resistant valves, are made by placing polytetrafluoroethylene resin on the inner wall of steel or iron valve pressure-bearing parts or the outer surface of valve internals by molding, and using its unique performance in resisting highly corrosive media to make various valves and pressure vessels. Four-way pipes are a kind of pipe fittings, and the pipe diameters can be the same or different. After fluorine lining, more durable and stable pipeline connections can be used.

[0003] For example, the patent document with the announcement number CN 115254544 B discloses an environmentally friendly steel-lined polytetrafluoroethylene pressure pipe lining bonding device. An environmentally friendly steel-lined polytetrafluoroethylene pressure pipe lining bonding device includes a pipe, a movable frame, multiple coating mechanisms, a transmission mechanism, a driving mechanism and a fixing mechanism. Each coating mechanism includes an expansion block, a guide assembly, a glue coating roller and a spraying assembly. The spraying assembly is used to spray the adhesive onto the glue coating roller. The transmission mechanism includes a drive shaft, a push plate, a movable plate, a first elastic member and multiple push rods. The fixing mechanism is used to fix the device to one end of the pipe, and the driving mechanism is used to rotate the drive shaft. The present invention provides an environmentally friendly steel-lined polytetrafluoroethylene pressure pipe lining bonding device to solve the problem that the existing polytetrafluoroethylene lining bonding device is prone to uneven coating and sagging when coating the adhesive, which makes the polytetrafluoroethylene plate not firmly bonded and affects subsequent use.

[0004] However, during actual use, this structure can often only perform simple internal limiting fluorine lining operations. But when the equipment performs fluorine lining operations on molded polytetrafluoroethylene four-way pipes, due to its own structural limitations, the equipment is first unable to perform adaptive quick locking, positioning and installation operations on the polytetrafluoroethylene four-way pipes, and cannot guarantee subsequent more stable polytetrafluoroethylene lining molding operations. In addition, the equipment is also unable to perform more adaptive docking and feeding operations between the polytetrafluoroethylene lined pipe and the four-way pipe. At the same time, the equipment is unable to perform rapid loading and unloading operations on the four-way pipe, which affects the overall efficiency of the equipment in processing the fluorine lining of the four-way pipes and cannot meet daily use needs. Therefore, it is urgent to design a fluorine lining method for molded polytetrafluoroethylene four-way pipes to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a method for lining a molded polyfluoro four-way pipe with fluorine, so as to solve the problem that the existing structure proposed in the above background technology can only perform simple internal limiting fluorine lining operations during actual use, but when the equipment performs the fluorine lining operation of the molded polyfluoro four-way pipe, due to the limitation of its own structure, firstly, the equipment is unable to perform adaptive quick locking, positioning and installation operations on the polyfluoro four-way pipe, and cannot ensure subsequent more stable polyfluoro lining molding operations, and the equipment is also unable to perform more adaptive docking and feeding operations between the polyfluoro liner pipe and the four-way pipe, and at the same time, the equipment is unable to perform rapid loading and unloading operations on the four-way pipe, which affects the overall efficiency of the equipment in the fluorine lining processing of the four-way pipe and cannot meet the daily use needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fluorine lining method for a molded polytetrafluoroethylene four-way pipe, comprising a fluorine lining frame, the four sides of the side of the fluorine lining frame are fixedly connected with a fluorine pipe frame, one end of the fluorine pipe frame is provided with an electric push rod, the four sides of the inner wall of the fluorine lining frame are provided with a guide seat, one end of the guide seat is provided with a glue-leveling ring seat, the inner center of the fluorine lining frame is provided with a four-way pipe body, the front of the fluorine lining frame is movably connected with a front adjustment seat, the back of the fluorine lining frame is movably connected with a rear adjustment seat, the front of the front adjustment seat is provided with a first air control pump, and the back of the rear adjustment seat is provided with a second air control pump;

[0007] A U-shaped overhead seat, the bottom end of the fluorine-lined frame is fixedly connected to the U-shaped overhead seat, the bottom front of the U-shaped overhead seat is fixedly connected to a first supporting foot, the bottom back of the U-shaped overhead seat is fixedly connected to a second supporting foot, hydraulic push rods are arranged on the sides of the first supporting foot and the second supporting foot, the front of the first supporting foot is fixedly connected to a front limiting slide rail, and the back of the second supporting foot is fixedly connected to a rear limiting slide rail.

[0008] Preferably, a driving motor is provided at one end of the front limiting slide rail, and a reciprocating screw rod is provided inside the front limiting slide rail.

[0009] Preferably, the front and rear ends of the U-shaped overhead seat are movably connected with an adjustment frame, and a limit slider is arranged at the bottom center of the adjustment frame, and the limit slider is adapted to the reciprocating screw rod.

[0010] Preferably, a front positioning plate is fixedly connected to the front of the U-shaped frame, a rear positioning plate is fixedly connected to the back of the U-shaped frame, a first sealing ring is arranged between the fluorine-lined frame and the front adjustment seat, and a second sealing ring is arranged between the fluorine-lined frame and the rear adjustment seat.

[0011] Preferably, the back of the four groups of fluorine tube racks is fixedly connected to a loading rack, one end of the loading rack is movably connected to a movable plate, one end of the movable plate is fixedly connected to a top material inner core, and a damping rubber sleeve is arranged on the side of the top material inner core.

[0012] Preferably, a contraction spring sleeve is provided on the front of the rear adjustment seat, a docking top seat is provided on the inner wall of the contraction spring sleeve, and plug-in holes are provided at the four corners of the front of the docking top seat.

[0013] Preferably, a close fitting seat is provided inside the docking top seat, and a close fitting rubber pad is provided on the front side of the close fitting seat.

[0014] Preferably, a material clamping seat is provided at the four corners of the back side of the front adjustment seat, a plug connector is provided at one end of the material clamping seat, and a top-connecting airbag is provided inside the material clamping seat.

[0015] Preferably, a glue coating head is provided at one end of the glue-leveling ring seat, glue coating seats are provided on the sides of the four-way pipe body, a lining tube groove is provided on the side of the fluorine tube rack, and feeding grooves are provided on the four sides of the side of the fluorine lining rack.

[0016] S1: Place the four-way pipe body that needs to be lined with fluorine on the back of the front adjustment seat, and then use the four corner clamping seats on the back of the front adjustment seat to perform preliminary limiting. At this time, start the top connection airbag inside the clamping seat to press the top of the four corners of the four-way pipe. Then, send the four-way pipe body into the fluorine lining frame through the front adjustment seat, and start the second air control pump inside the rear adjustment seat to inflate the contraction spring sleeve, so that the internal docking top seat as a whole can also be synchronously extended into the interior of the fluorine lining frame, so that the docking top seat The plug holes at the four corners of the seat are adapted to be docked with the plug connector at one end of the clamping seat. At this time, the close seat and the close rubber pad inside the docking top seat can also be adapted to be connected with the back of the four-way pipe body, so that the four-way pipe body is connected between the rear adjustment seat and the front adjustment seat, and a more firm and stable positioning and tightening operation is performed. The four-way pipe is lined with polytetrafluoroethylene resin, which is processed into a high-density and sufficiently thick PTFE lining layer through advanced lining technology, so that the product has excellent anti-permeability;

[0017] S2: By controlling and starting the driving motor at one end of the front limit slide rail and the rear limit slide rail, it can drive the internal reciprocating screw to perform adaptive rotation adjustment operation, so that the limit slider mounted on the reciprocating screw drives the adjustment frame as a whole to move and adjust along the front limit slide rail or the rear limit slide rail, thereby realizing the overall rapid docking and adjustment operation of the front adjustment seat and the rear adjustment seat at the front and rear ends of the fluorine lining frame. When the front adjustment seat and the rear adjustment seat are respectively docked at the front and rear ends of the fluorine lining frame, the hydraulic push rods on the sides of the first supporting foot seat and the second supporting foot seat can be started to perform the positioning and locking operation of the limit slider at the bottom, and the front and rear ends of the U-shaped overhead seat are stably fitted and positioned with the adjustment frame through the front positioning plate and the rear positioning plate, thereby ensuring the stability of the subsequent four-way pipe body during the internal lining processing of the fluorine lining frame, and the tight positioning connection between the fluorine lining frame and the front adjustment seat and the rear adjustment seat can also be ensured by the design of the first sealing ring and the second sealing ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The fluorine lining method of the molded polyfluoro four-way pipe can make the equipment perform more suitable positioning molding operation of the polyfluoro four-way pipe by arranging a fluorine lining frame, a fluorine pipe frame, an electric push rod, a guide seat, a glue-distributing ring seat, a four-way pipe body, a front adjustment seat, a rear adjustment seat, a first air control pump, a second air control pump, a contraction spring sleeve, a docking top seat, a plug hole, a close seat, a close rubber pad, a clamping seat, a plug joint, a top connection air bag, a glue coating head and a glue coating seat. In the actual use process, the staff first places the four-way pipe body that needs to be lined with fluorine on the back of the front adjustment seat, and then Then, preliminary limiting is performed through the four corner clamping seats on the back of the front adjusting seat, so that the four-way pipe body is connected between the rear adjusting seat and the front adjusting seat, and a more firm and stable positioning and tightening operation is performed, ensuring that the subsequent fluorine lining work of the four-way pipe is completed more stably, and stable docking and guiding operations are performed through the guide seats on the four sides of the inner wall of the fluorine lining frame. The lining bonding glue can be evenly sprayed at the glue coating seat of the four-way pipe body through the glue ring seat and the glue coating head at the guide seat, thereby ensuring that the fluorine lining of the four-way pipe is completed more firmly and stably, reflecting the practicality of the equipment design.

[0020] The fluorine lining method of the molded polyfluoro four-way pipe further improves the overall use effect of the equipment by arranging a fluorine lining frame, a front adjustment seat, a rear adjustment seat, a U-shaped overhead seat, a first supporting foot seat, a second supporting foot seat, a hydraulic push rod, a front limit slide rail, a rear limit slide rail, a driving motor, a reciprocating screw rod, an adjustment frame, a limit slider, a front positioning plate, a rear positioning plate, a first sealing ring, a second sealing ring, a loading rack, a movable plate, a top material inner core, a damping rubber sleeve, a lining pipe groove and a feeding trough. In daily use, the staff can control and start the driving motor at one end of the front limit slide rail and the rear limit slide rail respectively, so that the internal reciprocating screw rod can be driven to rotate adaptively. During the adjustment operation, the hydraulic push rods on the sides of the first supporting foot and the second supporting foot are started, and the positioning and locking operation of the limit slider is performed at the bottom. The front and rear ends of the U-shaped overhead seat are stably fitted and positioned with the adjustment frame through the front positioning plate and the rear positioning plate, thereby ensuring the stability of the subsequent four-way pipe body during the lining processing inside the fluorine lining frame, and the first sealing ring and the second sealing ring can also be designed to ensure the tight positioning connection between the fluorine lining frame and the front adjustment seat and the rear adjustment seat. The lining pipe loading operation is performed quickly from the lining pipe groove and the feeding trough of the fluorine lining frame and the fluorine pipe rack, which greatly improves the lining efficiency of the equipment for molded polytetrafluoroethylene four-way pipes and reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0022] Figure 2 It is an overall schematic diagram of the fluorine-lined frame structure of the present invention;

[0023] Figure 3 It is an overall schematic diagram of the front adjustment seat structure of the present invention;

[0024] Figure 4 It is an overall schematic diagram of the rear adjustment seat structure of the present invention;

[0025] Figure 5 It is an overall schematic diagram of the U-shaped overhead seat structure of the present invention;

[0026] Figure 6 It is an overall schematic diagram of the loading rack structure of the present invention;

[0027] Figure 7 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0028] Figure 8 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the figure.

[0029] In the figure: 1, fluorine-lined frame; 2, fluorine pipe frame; 3, electric push rod; 4, guide seat; 5, glue ring seat; 6, four-way pipe body; 7, front adjustment seat; 8, rear adjustment seat; 9, first air control pump; 10, second air control pump; 11, U-shaped overhead seat; 12, first support foot seat; 13, second support foot seat; 14, hydraulic push rod; 15, front limit slide rail; 16, rear limit slide rail; 17, drive motor; 18, reciprocating screw rod; 19, adjustment frame; 20, Limiting slider; 21. Front positioning plate; 22. Rear positioning plate; 23. First sealing ring; 24. Second sealing ring; 25. Loading rack; 26. Movable plate; 27. Top material inner core; 28. Damping rubber sleeve; 29. ​​Contraction spring sleeve; 30. Docking top seat; 31. Plug-in hole; 32. Tight seat; 33. Tight rubber pad; 34. Material clamping seat; 35. Plug connector; 36. Top airbag; 37. Gluing head; 38. Gluing seat; 39. Lining pipe groove; 40. Feeding trough. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-8 , an embodiment provided by the present invention:

[0032] A fluorine lining method for a molded polytetrafluoroethylene four-way pipe, comprising a fluorine lining frame 1, the four sides of the side of the fluorine lining frame 1 are fixedly connected with a fluorine pipe frame 2, one end of the fluorine pipe frame 2 is provided with an electric push rod 3, the four sides of the inner wall of the fluorine lining frame 1 are provided with a guide seat 4, one end of the guide seat 4 is provided with a glue-leveling ring seat 5, the inner center of the fluorine lining frame 1 is provided with a four-way pipe body 6, the front of the fluorine lining frame 1 is movably connected with a front adjustment seat 7, the back of the fluorine lining frame 1 is movably connected with a rear adjustment seat 8, the front of the front adjustment seat 7 is provided with a first air control pump 9, the back of the rear adjustment seat 8 is provided with a second air control pump 10, the back of the four groups of fluorine pipe frames 2 are fixedly connected with a loading frame 25, one end of the loading frame 25 is movably connected with a movable plate 26, and one end of the movable plate 26 is fixedly connected with a top material inner Core 27, a damping rubber sleeve 28 is provided on the side of the top material inner core 27, a contraction spring sleeve 29 is provided on the front of the rear adjusting seat 8, a docking top seat 30 is provided on the inner wall of the contraction spring sleeve 29, and plug holes 31 are provided at the four corners of the front of the docking top seat 30, a close seat 32 is provided inside the docking top seat 30, and a close rubber pad 33 is provided on the front of the close seat 32, a clamping seat 34 is provided at the four corners of the back of the front adjusting seat 7, a plug connector 35 is provided at one end of the clamping seat 34, a top connecting air bag 36 is provided inside the clamping seat 34, a glue coating head 37 is provided at one end of the glue ring seat 5, and glue coating seats 38 are provided on the sides of the four-way pipe body 6, a lining pipe groove 39 is provided on the side of the fluorine pipe rack 2, and a feeding groove 40 is provided on the four sides of the side of the fluorine lining rack 1.

[0033] A U-shaped overhead seat 11 is fixedly connected to the bottom end of the fluorine-lined frame 1, a first supporting foot 12 is fixedly connected to the bottom front of the U-shaped overhead seat 11, a second supporting foot 13 is fixedly connected to the bottom back of the U-shaped overhead seat 11, a hydraulic push rod 14 is arranged on the sides of the first supporting foot 12 and the second supporting foot 13, a front limiting slide rail 15 is fixedly connected to the front of the first supporting foot 12, a rear limiting slide rail 16 is fixedly connected to the back of the second supporting foot 13, and a driving electric push rod 14 is arranged at one end of the front limiting slide rail 15. Machine 17, a reciprocating screw 18 is arranged inside the front limit slide rail 15, an adjusting frame 19 is movably connected to the front and rear ends of the U-shaped overhead seat 11, a limiting slider 20 is arranged at the bottom center of the adjusting frame 19, the limiting slider 20 is adapted to the reciprocating screw 18, a front positioning plate 21 is fixedly connected to the front of the U-shaped overhead seat 11, a rear positioning plate 22 is fixedly connected to the back of the U-shaped overhead seat 11, a first sealing ring 23 is arranged between the fluorine-lined frame 1 and the front adjusting seat 7, and a second sealing ring 24 is arranged between the fluorine-lined frame 1 and the rear adjusting seat 8.

[0034] S1: Place the four-way pipe body 6 that needs to be lined with fluorine on the back of the front adjustment seat 7, and then use the four-corner clamping seats 34 on the back of the front adjustment seat 7 to perform preliminary limiting. At this time, start the top connection airbag 36 inside the clamping seat 34 to adjust the top of the four corners of the four-way pipe. Then, the four-way pipe body 6 is sent into the interior of the lining frame 1 through the front adjustment seat 7, and the second air control pump 10 inside the rear adjustment seat 8 can be started synchronously to inflate the contraction spring sleeve 29, so that the internal docking top seat 30 can also be synchronously extended into the interior of the lining frame 1, so that the docking The plug holes 31 at the four corners of the top seat 30 are used to perform an adaptive docking operation with the plug connector 35 at one end of the clamping seat 34. At this time, the close seat 32 and the close rubber pad 33 inside the docking top seat 30 can also be used to perform an adaptive top connection operation with the back of the four-way pipe body 6, so that the four-way pipe body 6 is top-connected between the rear adjustment seat 8 and the front adjustment seat 7, and a more firm and stable positioning and tightening operation is performed. The four-way pipe is lined with polytetrafluoroethylene resin, and is processed into a high-density, sufficiently thick PTFE lining layer through advanced lining technology, so that the product has excellent anti-permeability;

[0035] S2: By controlling and starting the driving motor 17 at one end of the front limit slide rail 15 and the rear limit slide rail 16, it can drive the internal reciprocating screw 18 to perform adaptive rotation adjustment operation, so that the limit slider 20 set on the reciprocating screw 18 drives the adjustment frame 19 to move and adjust along the front limit slide rail 15 or the rear limit slide rail 16 as a whole, so as to realize the rapid docking adjustment operation of the front adjustment seat 7 and the rear adjustment seat 8 at the front and rear ends of the fluorine lining frame 1. The current adjustment seat 7 and the rear adjustment seat 8 are respectively completed at the front and rear ends of the fluorine lining frame 1. When connected, the hydraulic push rod 14 on the side of the first supporting foot 12 and the second supporting foot 13 can be started, and the positioning and locking operation of the limit slider 20 can be performed at the bottom, and the front and rear ends of the U-shaped overhead seat 11 can be stably fitted and positioned with the adjustment frame 19 through the front positioning plate 21 and the rear positioning plate 22 to ensure the stability of the subsequent four-way pipe body 6 during the lining processing inside the fluorine-lined frame 1, and the tight positioning connection between the fluorine-lined frame 1 and the front adjustment seat 7 and the rear adjustment seat 8 can also be ensured by the design of the first sealing ring 23 and the second sealing ring 24.

[0036] Working principle: When in use, the user first places the four-way pipe body 6 that needs to be lined with fluorine on the back of the front adjustment seat 7, and then performs preliminary limiting through the four-corner clamping seats 34 on the back of the front adjustment seat 7. At this time, the top connecting airbag 36 inside the clamping seat 34 can be started to adjust the top of the four corners of the four-way pipe. After that, the four-way pipe body 6 is sent into the interior of the fluorine-lined frame 1 through the front adjustment seat 7, and the second air control pump 10 inside the rear adjustment seat 8 can be started synchronously to inflate the contraction spring sleeve 29, so that the internal docking top seat 30 as a whole can also be synchronously extended into the interior of the fluorine-lined frame 1, so that the plug holes 31 at the four corners of the docking top seat 30 can be adaptively docked with the plug connector 35 at one end of the clamping seat 34. At this time, the docking The close fitting seat 32 and the close fitting rubber pad 33 inside the top seat 30 can also be adapted to be connected to the back side of the four-way pipe body 6, so that the four-way pipe body 6 can be connected between the rear adjustment seat 8 and the front adjustment seat 7, and a more firm and stable positioning and tightening operation can be performed, ensuring that the subsequent fluorine lining work of the four-way pipe can be completed more stably. At the same time, the electric push rod 3 at one end of the four-sided fluorine pipe rack 2 on the side of the fluorine lining frame 1 can be synchronously started on a daily basis, so that the polyfluoroethylene tube required for the lining of the four-way pipe body 6 can be adaptively pushed in, and a stable docking and guiding operation can be performed through the guide seats 4 on the four sides of the inner wall of the fluorine lining frame 1, and the lining adhesive glue can be evenly sprayed at the glue coating seat 38 of the four-way pipe body 6 through the glue ring seat 5 and the glue coating head 37 at the guide seat 4. Operation, thereby ensuring that the fluorine lining of the four-way pipeline is completed more firmly and stably. In daily use, the staff can control and start the driving motor 17 at one end of the front limit slide rail 15 and the rear limit slide rail 16, so that it can drive the internal reciprocating screw 18 to perform adaptive rotation adjustment operations, so that the limit slider 20 set on the reciprocating screw 18 drives the adjustment frame 19 as a whole to move and adjust along the front limit slide rail 15 or the rear limit slide rail 16, so as to realize the overall rapid docking and adjustment operation of the front adjustment seat 7 and the rear adjustment seat 8 at the front and rear ends of the fluorine lining frame 1. When the front adjustment seat 7 and the rear adjustment seat 8 are respectively docked at the front and rear ends of the fluorine lining frame 1, the hydraulic pressure on the sides of the first supporting foot seat 12 and the second supporting foot seat 13 can be started. The push rod 14 performs the positioning and locking operation of the limit slider 20 at the bottom, and the front and rear ends of the U-shaped overhead seat 11 are stably fitted and positioned with the adjustment frame 19 through the front positioning plate 21 and the rear positioning plate 22, thereby ensuring the stability of the subsequent four-way pipe body 6 during the lining processing inside the fluorine lining frame 1, and the first sealing ring 23 and the second sealing ring 24 can also be designed to ensure the tight positioning connection between the fluorine lining frame 1 and the front adjustment seat 7 and the rear adjustment seat 8. At the same time, the PTFE tube of the lining can be put in from the loading rack 25 on a daily basis, and positioned inside the fluorine pipe rack 2 through the movable plate 26, the top material core 27 and the damping rubber sleeve 28, and finally the lining pipe feeding operation is performed quickly from the lining pipe groove 39 and the feeding groove 40 of the fluorine lining frame 1 and the fluorine pipe rack 2.The fluorine lining efficiency of the equipment for molded PTFE four-way pipes is greatly improved. The above is the entire working principle of the present invention.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for lining a molded polytetrafluoroethylene four-way pipe, comprising a lining frame (1), characterized in that: The four sides of the fluorine-lined frame (1) are fixedly connected to a fluorine tube frame (2), one end of the fluorine tube frame (2) is provided with an electric push rod (3), the four sides of the inner wall of the fluorine-lined frame (1) are provided with a guide seat (4), one end of the guide seat (4) is provided with a glue-leveling ring seat (5), the inner center of the fluorine-lined frame (1) is provided with a four-way pipe body (6), the front side of the fluorine-lined frame (1) is movably connected to a front adjustment seat (7), the back side of the fluorine-lined frame (1) is movably connected to a rear adjustment seat (8), the front side of the front adjustment seat (7) is provided with a first air control pump (9), and the back side of the rear adjustment seat (8) is provided with a second air control pump (10); A U-shaped overhead seat (11), the bottom end of the fluorine-lined frame (1) is fixedly connected to the U-shaped overhead seat (11), the bottom front of the U-shaped overhead seat (11) is fixedly connected to a first supporting foot seat (12), the bottom back of the U-shaped overhead seat (11) is fixedly connected to a second supporting foot seat (13), the sides of the first supporting foot seat (12) and the second supporting foot seat (13) are provided with hydraulic push rods (14), the front of the first supporting foot seat (12) is fixedly connected to a front limiting slide rail (15), and the back of the second supporting foot seat (13) is fixedly connected to a rear limiting slide rail (16).

2. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: A driving motor (17) is arranged at one end of the front limit slide rail (15), and a reciprocating screw rod (18) is arranged inside the front limit slide rail (15).

3. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 2, characterized in that: The front and rear ends of the U-shaped overhead seat (11) are movably connected with an adjustment frame (19), and a limit slider (20) is arranged at the bottom center of the adjustment frame (19), and the limit slider (20) is adapted to the reciprocating screw rod (18).

4. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: A front positioning plate (21) is fixedly connected to the front of the U-shaped overhead seat (11), a rear positioning plate (22) is fixedly connected to the back of the U-shaped overhead seat (11), a first sealing ring (23) is provided between the fluorine-lined frame (1) and the front adjustment seat (7), and a second sealing ring (24) is provided between the fluorine-lined frame (1) and the rear adjustment seat (8).

5. The method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: The backs of the four groups of fluorine tube racks (2) are fixedly connected to a loading rack (25), one end of the loading rack (25) is movably connected to a movable plate (26), one end of the movable plate (26) is fixedly connected to a top material inner core (27), and a damping rubber sleeve (28) is provided on the side of the top material inner core (27).

6. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: The front of the rear adjustment seat (8) is provided with a contraction spring sleeve (29), the inner wall of the contraction spring sleeve (29) is provided with a docking top seat (30), and the four corners of the front of the docking top seat (30) are provided with plugging holes (31).

7. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 6, characterized in that: A close fitting seat (32) is arranged inside the docking top seat (30), and a close fitting rubber pad (33) is arranged on the front side of the close fitting seat (32).

8. The method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: The four corners of the back side of the front adjustment seat (7) are provided with a material clamping seat (34), one end of the material clamping seat (34) is provided with a plug connector (35), and the interior of the material clamping seat (34) is provided with a top-connecting air bag (36).

9. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: A glue coating head (37) is provided at one end of the glue leveling ring seat (5), glue coating seats (38) are provided on the sides of the four-way pipe body (6), a lining pipe groove (39) is provided on the side of the fluorine pipe rack (2), and feeding grooves (40) are provided on the four sides of the side of the fluorine lining rack (1).

10. A method for lining a molded polytetrafluoroethylene four-way pipe according to claim 1, characterized in that: S1: The four-way pipe body (6) to be lined with fluorine is placed on the back of the front adjustment seat (7), and then the four corner clamping seats (34) on the back of the front adjustment seat (7) are used to perform preliminary limiting. At this time, the top connection airbag (36) inside the clamping seat (34) is activated to adjust the top of the four corners of the four-way pipe. After that, the four-way pipe body (6) is sent into the interior of the fluorine lining frame (1) through the front adjustment seat (7), and the second air control pump (10) inside the rear adjustment seat (8) can be started synchronously to inflate the contraction spring sleeve (29), so that the internal docking top seat (30) can also be synchronously extended into the interior of the fluorine lining frame (1) as a whole, so that The plug holes (31) at the four corners of the docking top seat (30) can be adapted to dock with the plug connector (35) at one end of the clamping seat (34). At this time, the close seat (32) and the close rubber pad (33) inside the docking top seat (30) can also be adapted to dock with the back of the four-way pipe body (6), so that the four-way pipe body (6) is connected between the rear adjustment seat (8) and the front adjustment seat (7) to perform a more secure and stable positioning and tightening operation. The four-way pipe is lined with polytetrafluoroethylene resin and processed into a high-density, sufficiently thick PTFE lining layer through advanced lining technology, so that the product has excellent anti-permeability. S2: By controlling and starting the driving motor (17) at one end of each of the front limit slide rail (15) and the rear limit slide rail (16), the driving motor (17) can drive the internal reciprocating screw (18) to perform adaptive rotation adjustment operation, so that the limit slider (20) mounted on the reciprocating screw (18) drives the adjustment frame (19) to move and adjust along the front limit slide rail (15) or the rear limit slide rail (16) as a whole, thereby realizing the rapid docking adjustment operation of the front adjustment seat (7) and the rear adjustment seat (8) at the front and rear ends of the fluorine lining frame (1). The front adjustment seat (7) and the rear adjustment seat (8) are respectively connected at the front and rear ends of the fluorine lining frame (1). When connected, the hydraulic push rod (14) on the side of the first supporting foot (12) and the second supporting foot (13) can be started to perform the positioning and locking operation of the limit slider (20) at the bottom, and the front and rear ends of the U-shaped overhead seat (11) are stably fitted and positioned between the adjustment frame (19) through the front positioning plate (21) and the rear positioning plate (22), thereby ensuring the stability of the subsequent four-way pipe body (6) during the lining processing inside the fluorine-lined frame (1), and the tight positioning connection between the fluorine-lined frame (1) and the front adjustment seat (7) and the rear adjustment seat (8) can also be ensured by the design of the first sealing ring (23) and the second sealing ring (24).

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