Forming equipment for PE pipeline

Abstract

The invention discloses PE pipeline forming equipment and relates to the technical field of pipeline machining. A plurality of linkage frames are connected to the inner side of a driving gear ring at equal intervals, an assembly disc is connected between one ends of the tops of the linkage frames, four adjusting grooves are formed in the outer side of the assembly disc, and a plurality of fixing holes are formed in the two sides of each adjusting groove in a penetrating mode; adjusting sliding blocks are slidably connected into the adjusting grooves, spraying pipes are connected to the two ends of each adjusting sliding block, a three-way cavity is formed in each adjusting sliding block, the two ends of each three-way cavity are connected with one end of the corresponding adjacent spraying pipe, and a plurality of spraying holes are formed in the surface of each spraying pipe at equal intervals. The driving motor drives the spraying pipe to rotate at a constant speed, the cleaning effect is good, the pipe fitting forming quality is guaranteed during follow-up pipe fitting forming machining, the equipment can flexibly use a cleaning agent and dry ice to clean a mold according to cleaning requirements, and the use flexibility of the equipment is high.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline processing, in particular to a PE pipeline forming device. Background Art

[0002] Plastic injection molding machines (also known as injection molding machines) play a key role in pipe processing. They are used to produce various plastic pipes, such as PE pipes, PVC pipes, PPR pipes, etc. For the production of pipes, injection molding machines often have special designs, such as larger injection volume and higher injection pressure, to adapt to the characteristics and shape requirements of the pipe materials.

[0003] In the Chinese patent application number CN202410672425.0, entitled "A Plastic Injection Molding Machine for Pipe Fitting Processing", the patent shortens the pipe fitting molding cycle through an optimized cooling system and pressure design. At the same time, the automatic demolding design of the mold reduces manual intervention and improves overall efficiency. The mold combination enables the pipe fitting to be injection molded in one step, reducing post-processing steps and improving production efficiency.

[0004] When existing PE pipe forming equipment processes pipes, in order to ensure the product quality of the pipes, it is necessary to regularly clean the mold of the injection molding machine to prevent impurities from remaining inside the mold and affecting the pipe molding quality. The equipment of this patent cannot clean the mold. The existing cleaning method is mostly manual cleaning of the dynamic mold and the static mold one by one. Manual cleaning is slow and the downtime is long, which reduces the production efficiency of the product. The existing mold cleaning device can only clean molds of fixed specifications, and cannot flexibly adjust the cleaning method according to cleaning needs, and has a small scope of application. Summary of the Invention

[0005] The present invention provides a PE pipe forming device, which can effectively solve the problem that the equipment in the patent in the above-mentioned background technology cannot clean the mold, the existing manual cleaning speed is slow, the downtime is long, and the production efficiency of the product is reduced; the existing mold cleaning device can only clean molds of fixed specifications, and cannot flexibly adjust the cleaning method according to cleaning requirements, and has a small scope of application.

[0006] To achieve the above object, the present invention provides the following technical solution: a PE pipe forming device, comprising a static mold, a movable mold installed on one side of the static mold, a cleaning molding assembly provided between the static mold and the movable mold, the cleaning molding assembly comprising an electric rail;

[0007] An electric rail is installed on the top of the static mold, the output moving end of the electric rail is connected to a hanging frame, a lifting cylinder is installed on one side of the hanging frame, the output end of the lifting cylinder is connected to an assembly plate, a driving gear ring is installed on one side of the bottom of the assembly plate, a number of linkage frames are connected to the inner side of the driving gear ring at equal intervals, and an assembly disk is connected between one end of the top of the linkage frame;

[0008] An adjustment groove is provided on the outside of the assembly disk, and there are four adjustment grooves. A number of fixing holes are provided on both sides of the adjustment groove. An adjustment slider is slidably connected inside the adjustment groove, and nozzles are connected at both ends of the adjustment slider. A three-way cavity is provided inside the adjustment slider, and both ends of the three-way cavity are connected to one end of the adjacent nozzle. A number of spray holes are provided on the surface of the nozzle at equal intervals.

[0009] According to the above technical solution, a gear ring frame is installed on the outside of the driving gear ring at the bottom of the assembly plate, and several support wheels are evenly installed on both sides of the gear ring frame for rotation. The driving gear ring and the support wheels are rotationally connected.

[0010] According to the above technical solution, a drive motor is installed at the bottom of the assembly plate and on the top of the drive gear ring. The output end of the drive motor is connected to a drive gear, which is engaged with the drive gear ring. A conveying ring box is installed at the bottom of the assembly plate on one side of the assembly disk.

[0011] According to the above technical solution, a sealing ring is rotatably connected to the inner side of the conveying ring box, an adjusting tube is connected between the sealing ring and the other end of the adjacent three-way cavity, and the other end of the linkage frame is connected to the inner side of the sealing ring.

[0012] According to the above technical solution, two fixing ears are respectively connected to both sides of the adjusting slider, and the fixing ears located on the same side are respectively located on both sides of the assembly disk. Pull rods are connected to both ends of the adjusting slider, and the nozzle passes through adjacent pull rods. Fixed rods are welded at both ends of the pull rods. The fixed rods are slidingly connected to the adjacent fixing ears, and the fixing rods are embedded in the adjacent fixing holes. A fixing spring is connected between the fixing ears and the pull rods, and limiting ears are welded at the bottom of both ends of the adjusting slider.

[0013] According to the above technical solution, the top of the conveying ring box is connected to one end of the conveying pipe, the other end of the conveying pipe passes through the assembly plate and is connected to one end of the adapter hose, the dynamic and static mold edges are connected to the conveying steel pipe, the other end of the adapter hose is connected to one end of the conveying steel pipe, and the other end of the conveying steel pipe is connected to a three-way pipe, and one end of the three-way pipe is connected to the output end of the dry ice machine through a sub-control valve.

[0014] According to the above technical solution, a water pump is installed on one side of the dry ice machine, and a storage tank is installed on the other side of the water pump. The other end of the three-way pipe is also connected to the water outlet end of the water pump through a sub-control valve, and the water inlet end of the water pump is connected to the bottom of one side of the storage tank.

[0015] According to the above technical solution, a protective preheating component is provided at the bottom of the assembly plate, and the protective preheating component includes an air pumping ring box;

[0016] An exhaust ring box is installed on the bottom of the assembly plate near the side of the conveying ring box, and the inner side of the exhaust ring box is rotatably connected to the second sealing ring. An air inlet pipe is installed in the center of the assembly plate. The middle of the outer side of the air inlet pipe is evenly spaced and connected to one end of a plurality of linkage air pipes. The other end of the linkage air pipe is connected to the inner side of the second sealing ring. An exhaust pump is installed between the dry ice machine and the water delivery pump, and the exhaust end of the exhaust pump is connected to one end of the exhaust steel pipe.

[0017] An injection machine is installed on one side of the static mold, and an injection cylinder is provided on one side of the injection machine. A heat exchange cylinder is sleeved on the outside of the injection cylinder, and a number of heat exchange fins are welded on the inside of the heat exchange cylinder. An air inlet is opened at one end of the heat exchange cylinder, and an air outlet head is connected to the other end of the heat exchange cylinder. A heat-resistant air pump is installed on one side of the heat exchange cylinder, and the air suction end of the heat-resistant air pump is connected to the air outlet head. A hot air pipe is connected between one side of the conveying steel pipe and the air outlet end of the heat-resistant air pump, and an air control valve is connected in the middle of the hot air pipe.

[0018] According to the above technical solution, the top of the conveying ring box is connected to one end of the exhaust pipe, the other end of the exhaust pipe passes through the assembly plate and is connected to one end of the exhaust hose, and the other end of the exhaust hose is connected to the other end of the exhaust steel pipe.

[0019] According to the above technical solution, the sub-control valve and the air control valve are both electric valves, and the electric rail, lifting cylinder, drive motor, sub-control valve, water pump, dry ice machine, vacuum pump, heat-resistant air pump and air control valve input end are electrically connected to the external power supply output end through the controller.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A cleaning molding component is provided. The lifting cylinder drives the assembly plate to descend, and the electric rail drives the assembly plate to move. The movable mold approaches the static mold, so that the nozzles on both sides of the assembly plate are moved to the outside of the convex end of the mold and the inside of the concave end of the movable mold respectively. The assembly plate and the nozzle are rotated by the driving motor. When the detergent is used for cleaning, the detergent enters the inside of the conveying ring box through the tee pipe, the conveying steel pipe, the adapter hose and the conveying pipe, and then flows through the regulating pipe and the tee cavity into the inside of the nozzle, and finally is sprayed out from the spray hole. The sprayed detergent cleans the concave and convex ends of the mold respectively at the same time, without manual cleaning one by one, with high cleaning efficiency. The driving motor drives the nozzle to rotate at a constant speed, which can fully clean the concave and convex ends of the mold, with good cleaning effect. In the subsequent pipe forming process, the forming quality of the pipe is guaranteed;

[0022] If dry ice cleaning is required, the dry ice machine is started by controlling the corresponding sub-control valve. Dry ice is sprayed out from the nozzle to clean the concave and convex ends of the mold. The equipment can flexibly use detergent and dry ice to clean the mold according to cleaning needs, and the equipment is highly flexible in use.

[0023] By pulling the pull rod, the fixing rod is disengaged from the fixing hole. By moving the adjustment slider and cooperating with the fixing spring to rebound, the fixing rod is embedded in the corresponding fixing hole to complete the fixation of the nozzle. The nozzle is a shaped gooseneck tube. By moving the adjustment slider and bending the nozzle, the nozzle hole is brought closer to the outer wall of the convex end and the inner wall of the concave end of the mold. The equipment can be used for mold cavities of different sizes and has a wide range of applications.

[0024] 2. A protective preheating component is provided. The heat emitted by the injection cylinder can heat the air inside the heat exchange cylinder. After the cleaning with the heating detergent is completed, the heated air is ejected from the nozzle under the guidance of the heat-resistant air pump, and the nozzle is rotated by the drive motor. The ejected hot air can evenly dry the inner wall of the concave end and the outer wall of the convex end of the mold. After the cleaning with the detergent is completed, it can be quickly dried. No additional drying tools are required for manual drying in the middle. The operation continuity is high. The heat emitted by the injection cylinder is used to dry the mold, and the emitted heat is recycled. The equipment is more environmentally friendly. After the drying is completed, the heat emitted by the injection cylinder can be used to heat the outside of the mold, reducing the preheating time in the middle of the pipeline processing, further improving the product production efficiency, and the inside and outside of the mold are heated simultaneously, so that the mold preheating is more uniform. When producing pipelines, the molding quality of the pipeline is better.

[0025] When using dry ice for cleaning, the gas generated by the sublimation of dry ice flows through the exhaust pipe and the linked air pipe into the exhaust ring box, then flows through the exhaust pipe, the exhaust hose and the exhaust steel pipe, and finally is discharged from the exhaust end of the exhaust pump. When using dry ice for cleaning, the carbon dioxide is prevented from spreading everywhere and causing the carbon dioxide concentration in the processing environment to be too high, thereby ensuring the personal safety of on-site workers.

[0026] In summary, the nozzles in the cleaning and molding components are suitable for detergent cleaning and dry ice cleaning, so that the equipment can be adjusted according to the needs of the situation. In the protective preheating component, the nozzles play a role in drying and preheating. The equipment has high integration. After cleaning, preheating or drying operations can be performed according to the cleaning situation. The operation continuity is high, which fully guarantees the production efficiency of pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] In the attached figure:

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic structural diagram of the cleaning molding assembly of the present invention;

[0031] Figure 3 This is a schematic diagram of the installation structure of the lifting cylinder of the present invention;

[0032] Figure 4 Schematic diagram of the installation structure of the drive motor of the present invention;

[0033] Figure 5 Schematic diagram of the installation structure of the regulating tube of the present invention;

[0034] Figure 6 Schematic diagram of the installation structure of the drive gear ring of the present invention;

[0035] Figure 7 Schematic diagram of the installation structure of the nozzle of the present invention;

[0036] Figure 8 It is a schematic diagram of the installation structure of the fixing rod of the present invention;

[0037] Figure 9 It is a schematic structural diagram of the protective preheating assembly of the present invention;

[0038] Figure 10 Schematic diagram of the installation structure of the vacuum ring box of the present invention;

[0039] Figure 11 Schematic diagram of the installation structure of the heat exchange tube of the present invention;

[0040] Figure 12 This is a schematic diagram of the installation structure of the heat-resistant air pump of the present invention

[0041] Numbers in the figure: 1, static mold; 2, dynamic mold;

[0042] 3. Cleaning and molding components; 301. Electric rail; 302. Lifting frame; 303. Lifting cylinder; 304. Assembly plate; 305. Gear ring frame; 306. Support wheel; 307. Drive gear ring; 308. Linkage frame; 309. Assembly plate; 310. Adjustment slot; 311. Adjustment slider; 312. Three-way cavity; 313. Nozzle; 314. Nozzle hole; 315. Fixing ear; 316. Fixing rod; 317. 7. Pull rod; 318. Fixing spring; 319. Adjusting tube; 320. Conveying ring box; 321. Sealing ring; 322. Driving motor; 323. Driving gear; 324. Conveying pipe; 325. Adapter hose; 326. Conveying steel pipe; 327. Tee; 328. Control valve; 329. Water pump; 330. Storage tank; 331. Dry ice machine; 332. Fixing hole; 333. Stopper.

[0043] 4. Protective preheating assembly; 401. Exhaust ring box; 402. Second sealing ring; 403. Air inlet pipe; 404. Linked air pipe; 405. Exhaust pipe; 406. Exhaust hose; 407. Exhaust steel pipe; 408. Exhaust pump; 409. Injection machine; 410. Injection barrel; 411. Heat exchange barrel; 412. Air inlet hole; 413. Air outlet head; 414. Heat-resistant air pump; 415. Hot air pipe; 416. Air control valve; 417. Heat exchange plate. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Example: Figure 1-12 As shown, the present invention provides a technical solution for a PE pipe forming device, comprising a static mold 1, a movable mold 2 is installed on one side of the static mold 1, a cleaning molding assembly 3 is arranged between the static mold 1 and the movable mold 2, and the cleaning molding assembly 3 comprises an electric rail 301, a hoisting frame 302, a lifting cylinder 303, an assembly plate 304, a gear ring frame 305, a supporting wheel 306, a driving gear ring 307, a linkage frame 308, an assembly plate 309, an adjustment slot 310, an adjustment slider 311, and a three-way cavity 3 12. Nozzle 313, spray hole 314, fixing ear 315, fixing rod 316, pull rod 317, fixing spring 318, adjustment tube 319, delivery ring box 320, sealing ring 321, drive motor 322, drive gear 323, delivery pipe 324, adapter hose 325, delivery steel pipe 326, T-piece 327, sub-control valve 328, water delivery pump 329, storage tank 330, dry ice machine 331, fixing hole 332, and limiting ear 333;

[0046] An electric rail 301 is installed on the top of the static mold 1, and the output moving end of the electric rail 301 is connected to the hanging frame 302. A lifting cylinder 303 is installed on one side of the hanging frame 302, and the output end of the lifting cylinder 303 is connected to the assembly plate 304. A driving gear ring 307 is installed on one side of the bottom of the assembly plate 304. A gear ring frame 305 is installed on the outside of the driving gear ring 307 at the bottom of the assembly plate 304. Several support wheels 306 are evenly installed on both sides of the gear ring frame 305. The driving gear ring 307 is rotatably connected to the support wheels 306, and the support wheels 306 can rotate the driving gear ring 307. The drive gear ring 307 is supported so that it can rotate stably inside the gear ring frame 305. A drive motor 322 is installed at the bottom of the assembly plate 304 and on the top of the drive gear ring 307. The output end of the drive motor 322 is connected to a drive gear 323. The drive gear 323 is engaged with the drive gear ring 307. When the drive motor 322 drives the drive gear 323 to rotate, the drive gear 323 can drive the drive gear ring 307 to rotate. Several linkage frames 308 are evenly spaced and connected to the inside of the drive gear ring 307. An assembly disk 309 is connected between one end of the top of the linkage frame 308.

[0047] A conveying ring box 320 is installed on the bottom of the assembly plate 304, on one side of the assembly disk 309. A sealing ring 321 is rotatably connected to the inner side of the conveying ring box 320. An adjusting tube 319 is connected between the sealing ring 321 and the other end of the adjacent three-way cavity 312. The other end of the linkage frame 308 is connected to the inner side of the sealing ring 321. The top of the conveying ring box 320 is connected to one end of the conveying tube 324. The other end of the conveying tube 324 passes through the assembly plate 304 and is connected to one end of the adapter hose 325. Both the adjustment tube 319 and the delivery tube 324 are telescopic bellows. When the adjustment slider 311 moves, the adjustment tube 319 ensures communication between the three-way cavity 312 and the delivery ring box 320. Similarly, when the assembly plate 304 moves up and down, the delivery tube 324 ensures communication between the delivery ring box 320 and the adapter hose 325. The adapter hose 325 can bend with the movement of the hanging frame 302 to ensure connectivity between the adapter hose 325 and the delivery tube 324.

[0048] One side of the movable mold 2 is connected to a delivery steel pipe 326, and the other end of the adapter hose 325 is connected to one end of the delivery steel pipe 326. The other end of the delivery steel pipe 326 is connected to a three-way pipe 327. One end of the three-way pipe 327 is connected to the output end of the dry ice machine 331 through a sub-control valve 328. The dry ice machine 331 is equipped with a water delivery pump 329. The water delivery pump 329 is equipped with a storage tank 330. The mold cleaning agent is injected into the storage tank 330. The other end of the three-way pipe 327 is also connected to the dry ice machine 331 through a sub-control valve 328. The water outlet of the water delivery pump 329 is connected to the bottom of one side of the agent storage tank 330, and the water inlet of the water delivery pump 329 is connected to the bottom of one side of the agent storage tank 330. The connectivity of the three-way pipe 327 can be controlled by controlling the two sub-control valves 328. When the water delivery pump 329 is running, the sub-control valve 328 connected to the water delivery pump 329 is opened, and the sub-control valve 328 connected to the dry ice machine 331 is closed. When the dry ice machine 331 is running, the sub-control valve 328 connected to the dry ice machine 331 is opened, and the sub-control valve 328 connected to the water delivery pump 329 is closed.

[0049] The mounting plate 309 has four adjustment slots 310 formed on its outer side. Adjustment sliders 311 are slidably connected to the interior of the adjustment slots 310. Both ends of the adjustment sliders 311 are connected to nozzles 313. The nozzles 313 are shaped like gooseneck tubes that can be bent and adjusted. A three-way cavity 312 is formed within the adjustment slider 311. Both ends of the three-way cavity 312 are connected to one end of an adjacent nozzle 313. A plurality of spray holes 314 are formed on the surface of the nozzle 313 at equal intervals.

[0050] There are several fixing holes 332 on both sides of the adjustment slot 310. Two fixing ears 315 are connected to both sides of the adjustment slider 311. The fixing ears 315 on the same side are located on both sides of the assembly disk 309. The two ends of the adjustment slider 311 are connected with pull rods 317. The nozzle 313 passes through the adjacent pull rods 317. The two ends of the pull rods 317 are welded with fixing rods 316. The fixing rods 316 are slidably connected to the adjacent fixing ears 315. The fixing rods 316 are embedded in the adjacent fixing holes 332. A fixing spring 318 is connected between the fixing ears 315 and the pull rods 317. The adjustment slider 311 can slide inside the adjustment slot 310. When the adjustment slider 311 needs to move, Pull the pull rod 317, the fixing spring 318 stretches, and the fixing rod 316 is disengaged from the fixing hole 332. Then, the adjusting slider 311 is moved. When the adjusting slider 311 moves to the desired position, the pull rod 317 is released, the fixing spring 318 rebounds, and the fixing rod 316 is embedded in the corresponding fixing hole 332, completing the fixation of the adjusting slider 311. By adjusting the position of the adjusting slider 311, the position of the nozzle 313 can be adjusted to adapt to mold cavities of different diameters. Limiting ears 333 are welded to the bottom of both ends of the adjusting slider 311. The limiting ears 333 can limit the movement of the pull rod 317 to prevent the fixing rod 316 from being disengaged from the fixing ears 315, thereby ensuring the stability of the operation.

[0051] A protective preheating assembly 4 is provided at the bottom of the assembly plate 304. The protective preheating assembly 4 includes an exhaust ring box 401, a sealing second ring 402, an air inlet pipe 403, a linkage air pipe 404, an exhaust pipe 405, an exhaust hose 406, an exhaust steel pipe 407, an exhaust pump 408, an injection machine 409, an injection cylinder 410, a heat exchange cylinder 411, an air inlet hole 412, an air outlet head 413, a heat-resistant air pump 414, a hot air pipe 415, an air control valve 416, and a heat exchange plate 417.

[0052] An air pumping ring box 401 is installed on the bottom of the assembly plate 304 near the side of the conveying ring box 320. The inner side of the air pumping ring box 401 is rotatably connected to the sealing ring 402. An air inlet pipe 403 is installed in the center of the assembly plate 309. The middle of the outer side of the air inlet pipe 403 is evenly spaced and connected to one end of several linkage air pipes 404. The other end of the linkage air pipe 404 is connected to the inner side of the sealing ring 402. An air pump 408 is installed between the dry ice machine 331 and the water delivery pump 329. The air pumping end of the air pump 408 is connected to the air pumping steel One end of the tube 407 and the top of the conveying ring box 320 are connected to one end of the exhaust pipe 405. The other end of the exhaust pipe 405 passes through the assembly plate 304 and is connected to one end of the exhaust hose 406. The other end of the exhaust hose 406 is connected to the other end of the exhaust steel pipe 407. The exhaust pipe 405 is also a corrugated telescopic tube that can be extended and retracted as the assembly plate 304 moves. The exhaust hose 406 can bend as the hanging frame 302 moves to ensure connectivity between the exhaust hose 406 and the exhaust pipe 405.

[0053] An injection machine 409 is installed on one side of the static mold 1. An injection cylinder 410 is provided on one side of the injection machine 409. A heat exchange cylinder 411 is sleeved on the outside of the injection cylinder 410. Several heat exchange fins 417 are welded to the inside of the heat exchange cylinder 411. An air inlet 412 is opened at one end of the heat exchange cylinder 411. An air outlet 413 is connected to the other end of the heat exchange cylinder 411. A heat-resistant air pump 414 is installed on one side of the heat exchange cylinder 411. The air extraction end of the heat-resistant air pump 414 is connected to the air outlet 413. A hot air pipe 415 is connected between one side of the delivery steel pipe 326 and the air outlet end of the heat-resistant air pump 414. An air control valve 416 is connected in the middle of the hot air pipe 415.

[0054] The sub-control valve 328 and the air control valve 416 are both electric valves. The input ends of the electric rail 301, lifting cylinder 303, drive motor 322, sub-control valve 328, water pump 329, dry ice machine 331, vacuum pump 408, heat-resistant air pump 414 and air control valve 416 are electrically connected to the output end of the external power supply through the controller. The controller can control various electrical components to facilitate the automatic control of the equipment.

[0055] The working principle and use process of the present invention are as follows: when cleaning the mold, first, separate the static mold 1 and the dynamic mold 2, then the lifting cylinder 303 drives the assembly plate 304 to descend, and when the assembly disk 309 descends to the middle of the static mold 1 and the dynamic mold 2 and the nozzles 313 on both sides of the assembly disk 309 are respectively aligned with the convex end of the static mold 1 and the concave end of the dynamic mold 2, the lifting cylinder 303 stops running, then the electric rail 301 drives the assembly disk 309 to approach the static mold 1 until the nozzle 313 on one side of the assembly disk 309 is located outside the convex end of the static mold 1, then the dynamic mold 2 approaches the static mold 1, so that the nozzle 313 on the other side of the assembly disk 309 enters the concave end of the dynamic mold 2, then the driving motor 322 drives the driving gear 323 and the driving gear ring 307 to rotate, and under the connection and driving action of the linkage frame 308, the assembly disk 309 and the sealing ring 321 rotate, thereby driving the nozzle 313 to rotate;

[0056] Control the sub-control valve 328 according to the cleaning requirements. If detergent is needed for cleaning, the water pump 329 is started, the sub-control valve 328 connected to the water pump 329 is opened, and the sub-control valve 328 connected to the dry ice machine 331 is closed. The detergent enters the interior of the delivery ring box 320 through the storage tank 330, the water pump 329, the three-way pipe 327, the delivery steel pipe 326, the adapter hose 325 and the delivery pipe 324, and then flows through the regulating pipe 319 and the three-way cavity 312 into the nozzle 31 3, and finally sprayed out from the nozzle hole 314. The nozzle hole 314 located at the concave end of the mold faces the inner wall of the concave end, and the nozzle hole 314 located at the convex end of the mold faces the outer wall of the convex end. The sprayed cleaning agent cleans the concave end and the convex end of the mold respectively at the same time, without the need for manual cleaning one by one, with high cleaning efficiency. The driving motor 322 drives the nozzle 313 to rotate at a constant speed, which can fully clean the concave end and the convex end of the mold, with good cleaning effect, and ensures the quality of the pipe forming during the subsequent pipe forming process;

[0057] If dry ice is needed for cleaning, the sub-control valve 328 connected to the water pump 329 is closed, and the sub-control valve 328 connected to the dry ice machine 331 is opened. The dry ice machine 331 is started, and dry ice is sprayed from the spray hole 314 to clean the concave and convex ends of the mold. The equipment can flexibly use detergent and dry ice to clean the mold according to the cleaning method. The equipment is highly flexible and has a wide range of applications.

[0058] After the cleaning agent is finished, open the air control valve 416, close the sub-control valve 328, start the heat-resistant air pump 414, and the air enters the heat exchange cylinder 411 through the air inlet 412. The heat exchange plate 417 increases the heat exchange area. The heat emitted by the injection cylinder 410 heats the air. The heated air enters the conveying steel pipe 326 through the air outlet head 413, the hot air pipe 415 and the air control valve 416, and finally is ejected from the nozzle 314. At the same time, the driving motor 322 drives the nozzle 313 to rotate, and the ejected hot air can evenly dry the inner wall of the concave end and the outer wall of the convex end of the mold. After the cleaning agent is finished, The mold is dried quickly without the need for manual drying or additional drying tools. The operation is continuous, which further improves the cleaning efficiency and fully guarantees the production efficiency of pipe fittings. The heat emitted by the injection barrel 410 is used to dry the mold, and the heat is recycled, making the equipment more environmentally friendly. After the drying is completed, the heat emitted by the injection barrel 410 can be used to heat the mold outside, reducing the preheating time during the pipe processing and further improving the production efficiency of the product. The simultaneous heating of the inside and outside of the mold makes the mold preheating more uniform, and the molding quality of the pipe is better during the production of the pipe.

[0059] When using dry ice cleaning, the vacuum pump 408 is started. Under the connection of the linkage air pipe 404, the assembly disk 309 also drives the sealing second ring 402 to rotate. The dry ice sublimates to generate gas, which flows through the vacuum pipe 405 and the linkage air pipe 404 into the interior of the vacuum ring box 401, then flows through the vacuum pipe 405, the vacuum hose 406 and the vacuum steel pipe 407, and finally is discharged from the exhaust end of the vacuum pump 408. The exhaust end of the vacuum pump 408 is connected to the atmosphere. When using dry ice cleaning, the diffusion of carbon dioxide is prevented, which may cause the carbon dioxide concentration in the processing environment to be too high, thereby ensuring the personal safety of on-site workers.

[0060] The equipment can be flexibly adjusted according to the size of the pipe mold. When adjusting, pull the pull rod 317, the fixing spring 318 is stretched, and the fixing rod 316 is separated from the fixing hole 332. Then move the adjustment slider 311. The limiting ears 333 are welded at the bottom of both ends of the adjustment slider 311. The limiting ears 333 can limit the movement of the pull rod 317 to prevent the fixing rod 316 from being separated from the fixing ears 315, thereby ensuring the stability of the operation. When the position of the nozzle 313 can be adapted to the convex and concave ends of the pipe mold, Loosen the pull rod 317, the fixing spring 318 rebounds, the fixing rod 316 is embedded in the corresponding fixing hole 332, and the adjusting slider 311 is fixed to complete the fixation of the nozzle 313. The nozzle 313 is a shaped gooseneck tube, which can be finely adjusted according to the size of the convex end and the concave end of the mold, so that the nozzle 314 is closer to the outer wall of the convex end and the inner wall of the concave end of the mold. The position of the nozzle 313 can be adjusted by adjusting the position of the adjusting slider 311. The equipment is suitable for mold cavities of different sizes and has a wide range of applications.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A PE pipe forming device, comprising a static mold (1), characterized in that: A movable mold (2) is installed on one side of the static mold (1), and a cleaning molding component (3) is provided between the static mold (1) and the movable mold (2), wherein the cleaning molding component (3) includes an electric rail (301); The static mold (1) is provided with an electric rail (301) on the top, the output moving end of the electric rail (301) is connected to a hanging frame (302), a lifting cylinder (303) is provided on one side of the hanging frame (302), the output end of the lifting cylinder (303) is connected to an assembly plate (304), a driving gear ring (307) is provided on one side of the bottom of the assembly plate (304), a plurality of linkage frames (308) are connected at equal intervals inside the driving gear ring (307), and an assembly disk (309) is connected between the top ends of the linkage frames (308); An adjustment groove (310) is provided on the outside of the assembly disk (309), and there are four adjustment grooves (310). A plurality of fixing holes (332) are provided on both sides of the adjustment groove (310). An adjustment slider (311) is slidably connected inside the adjustment groove (310), and both ends of the adjustment slider (311) are connected to a nozzle (313). A three-way cavity (312) is provided inside the adjustment slider (311), and both ends of the three-way cavity (312) are connected to one end of an adjacent nozzle (313). A plurality of spray holes (314) are provided on the surface of the nozzle (313) at equal intervals.

2. A PE pipe forming device according to claim 1, characterized in that: A gear ring frame (305) is installed on the bottom of the assembly plate (304) outside the driving gear ring (307), and a plurality of support wheels (306) are evenly rotatably installed on both sides of the gear ring frame (305). The driving gear ring (307) and the support wheels (306) are rotatably connected.

3. A PE pipe forming device according to claim 2, characterized in that: A driving motor (322) is installed at the bottom of the assembly plate (304) and located on the top of the driving gear ring (307). The output end of the driving motor (322) is connected to a driving gear (323). The driving gear (323) is meshed with the driving gear ring (307). A conveying ring box (320) is installed at the bottom of the assembly plate (304) and located on one side of the assembly disk (309).

4. A PE pipe forming device according to claim 3, characterized in that: A sealing ring (321) is rotatably connected to the inner side of the conveying ring box (320), an adjusting tube (319) is connected between the sealing ring (321) and the other end of the adjacent three-way cavity (312), and the other end of the linkage frame (308) is connected to the inner side of the sealing ring (321).

5. A PE pipe forming device according to claim 3, characterized in that: Two fixing ears (315) are connected to both sides of the adjusting slider (311), and the fixing ears (315) located on the same side are located on both sides of the assembly plate (309). Pull rods (317) are connected to both ends of the adjusting slider (311). The nozzle (313) passes through the adjacent pull rods (317). Fixed rods (316) are welded to both ends of the pull rods (317). The fixed rods (316) are slidably connected to the adjacent fixing ears (315). The fixed rods (316) are embedded in the adjacent fixing holes (332). A fixing spring (318) is connected between the fixing ears (315) and the pull rods (317). Limiting ears (333) are welded to the bottoms of both ends of the adjusting slider (311).

6. A PE pipe forming device according to claim 4, characterized in that: The top of the conveying ring box (320) is connected to one end of the conveying pipe (324), the other end of the conveying pipe (324) passes through the assembly plate (304) and is connected to one end of the adapter hose (325), one side of the movable mold (2) is connected to a conveying steel pipe (326), the other end of the adapter hose (325) is connected to one end of the conveying steel pipe (326), the other end of the conveying steel pipe (326) is connected to a three-way pipe (327), and one end of the three-way pipe (327) is connected to the output end of the dry ice machine (331) through a sub-control valve (328).

7. A PE pipe forming device according to claim 6, characterized in that: The dry ice machine (331) is equipped with a water pump (329) on one side, and the water pump (329) is equipped with a storage tank (330) on the other side. The other end of the three-way pipe (327) is also connected to the water outlet of the water pump (329) through the sub-control valve (328), and the water inlet of the water pump (329) is connected to the bottom of one side of the storage tank (330).

8. A PE pipe forming device according to claim 7, characterized in that: A protective preheating assembly (4) is provided at the bottom of the assembly plate (304), and the protective preheating assembly (4) includes an air pumping ring box (401); An exhaust ring box (401) is installed on the bottom of the assembly plate (304) near the side of the conveying ring box (320), and the inner side of the exhaust ring box (401) is rotatably connected to the second sealing ring (402). An air inlet pipe (403) is installed in the center of the assembly plate (309), and the middle of the outer side of the air inlet pipe (403) is evenly spaced and connected to one end of a plurality of linkage air pipes (404), and the other end of the linkage air pipe (404) is connected to the inner side of the second sealing ring (402). An exhaust pump (408) is installed between the dry ice machine (331) and the water delivery pump (329), and the exhaust end of the exhaust pump (408) is connected to one end of the exhaust steel pipe (407); An injection machine (409) is installed on one side of the static mold (1), and an injection cylinder (410) is provided on one side of the injection machine (409). A heat exchange cylinder (411) is sleeved on the outer side of the injection cylinder (410), and a plurality of heat exchange fins (417) are welded on the inner side of the heat exchange cylinder (411). An air inlet (412) is opened at one end of the heat exchange cylinder (411), and an air outlet head (413) is connected to the other end of the heat exchange cylinder (411). A heat-resistant air pump (414) is installed on one side of the heat exchange cylinder (411), and the air suction end of the heat-resistant air pump (414) is connected to the air outlet head (413). A hot air pipe (415) is connected between one side of the conveying steel pipe (326) and the air outlet end of the heat-resistant air pump (414), and an air control valve (416) is connected in the middle of the hot air pipe (415).

9. A PE pipe forming device according to claim 8, characterized in that: The top end of the conveying ring box (320) is connected to one end of the exhaust pipe (405), the other end of the exhaust pipe (405) passes through the assembly plate (304) and is connected to one end of the exhaust hose (406), and the other end of the exhaust hose (406) is connected to the other end of the exhaust steel pipe (407).

10. The PE pipe forming equipment according to claim 8, characterized in that: The sub-control valve (328) and the air control valve (416) are both electric valves, and the input ends of the electric rail (301), the lifting cylinder (303), the driving motor (322), the sub-control valve (328), the water delivery pump (329), the dry ice machine (331), the air extraction pump (408), the heat-resistant air pump (414), and the air control valve (416) are electrically connected to the output end of the external power supply through the controller.

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