PE pipe folding and deforming machine

Abstract

The application discloses a PE pipe folding and deforming machine, which comprises a workbench, a hydraulic extrusion deforming mechanism, a folding and deforming control mechanism and a negative pressure swing type limiting mechanism, the hydraulic extrusion deforming mechanism is arranged above the workbench, the hydraulic extrusion deforming mechanism comprises a deforming workbench, an extrusion limiting block is arranged in the deforming workbench, a containing limiting ring is arranged on the outer side of the extrusion limiting block, a plurality of uniformly distributed hydraulic control cylinders are connected in the containing limiting ring, an extrusion folding block is arranged in each of the plurality of hydraulic control cylinders, the folding and deforming control mechanism is arranged above the workbench, and the folding and deforming control mechanism comprises a fixed limiting rod. The folding and deforming control mechanism and the negative pressure swing type limiting mechanism are arranged, the intelligent degree of folding and deforming of the PE pipe is remarkably improved, the folding and deforming process of the PE pipe is simplified, the folding and deforming of the PE pipe can be intelligently manufactured, and the folding and deforming efficiency of the PE pipe is improved.

Description

Technical Field

[0001] This invention belongs to the field of PE pipe folding and deformation technology, and specifically relates to a PE pipe folding and deformation machine. Background Technology

[0002] PE pipe, also known as polyethylene pipe, is a type of plastic pipe. Due to its strong corrosion resistance, long service life, and high impact resistance, it is widely used in water supply and gas pipelines. While PE pipes are typically straight, they require bending and deformation treatment in practical applications. Folding deformation is a basic deformation method for rods, and PE pipes exhibit greater rigidity when bent using this method, meeting the requirements for their use.

[0003] A PE pipe folding and deformation machine is a device used to fold and deform PE pipes. A typical PE pipe folding and deformation machine mainly consists of an extrusion and deformation mechanism, a heating component, a heater, and other parts. During operation, the operator needs to manually assemble and limit the PE pipe. Then, the heating component heats the PE pipe fitted outside the extrusion and deformation mechanism. Finally, the extrusion and deformation mechanism supports and folds the PE pipe, and the folded PE pipe is manually unloaded.

[0004] Most existing PE pipe folding and deformation machines typically use manual loading and unloading methods to assemble and assist in the deformation of PE pipes. This results in a low level of intelligence in the folding and deformation process, leading to poor labor intensity and an inability to perform intelligent folding and deformation of PE pipes. Summary of the Invention

[0005] The purpose of this invention is to provide a PE pipe folding and deformation machine to solve the problem of poor intelligent manufacturing performance of the aforementioned PE pipe folding and deformation machine.

[0006] To achieve the above objectives, one embodiment of the present invention provides a PE pipe folding and deformation machine, including: a worktable, a hydraulic extrusion deformation mechanism, a folding deformation control mechanism, and a negative pressure swing limiting mechanism.

[0007] The hydraulic extrusion deformation mechanism is located above the worktable. The hydraulic extrusion deformation mechanism includes a deformation work frame, an extrusion limiting block is provided inside the deformation work frame, a receiving limiting ring is provided outside the extrusion limiting block, and multiple evenly distributed hydraulic control cylinders are connected inside the receiving limiting ring. Each of the multiple hydraulic control cylinders is provided with an extrusion folding block, and the extrusion folding block matches the extrusion limiting block.

[0008] The folding deformation control mechanism is located above the workbench. The folding deformation control mechanism includes a fixed limiting rod located inside the deformation work frame. A limiting top plate is slidably connected to the outside of the fixed limiting rod. A buffer fixing mechanism is provided inside the limiting top plate. A movable lead screw is threadedly connected to the fixed limiting rod. A threaded connecting block is connected between the limiting top plate and the movable lead screw. A lifting limiting mechanism is provided on one side of the fixed limiting rod. The lifting limiting mechanism matches the extrusion limiting block.

[0009] The negative pressure swing-type limiting mechanism is located on one side of the deformable work frame. The negative pressure swing-type limiting mechanism includes a control connecting seat. A pair of arc-shaped limiting members are rotatably connected to the side of the control connecting seat away from the worktable. Multiple evenly distributed negative pressure suction nozzles are connected to each pair of arc-shaped limiting members.

[0010] Furthermore, the extrusion limiting block is equipped with multiple sets of heating wires, facilitating heating of the extrusion limiting block by controlling the operation of these wires. This allows for the folding and deformation of the PE pipe through the cooperation of the extrusion limiting block and the multiple extrusion folding blocks. A fixing bolt connects the extrusion limiting block to the fixed limiting rod, providing support and fixation for the extrusion limiting block. Hydraulic conduits connect the multiple hydraulic control cylinders, enabling synchronous drive control of the cylinders by supplying hydraulic oil to individual cylinders.

[0011] Furthermore, a filling pipe is connected to the side of the hydraulic control cylinder away from the extrusion and folding block. This filling pipe connects the hydraulic control cylinder to the booster pump, facilitating the supply of hydraulic oil to the hydraulic control cylinder. The end of the filling pipe located within the deformation frame is connected to the booster pump, which pressurizes and extracts the hydraulic oil within the connecting pipe by controlling its operation. A storage tank is located on one side of the booster pump, facilitating the storage of hydraulic oil. A connecting pipe connects the booster pump and the storage tank, serving to link them.

[0012] Furthermore, the buffer fixing mechanism includes a buffer compression cylinder, which is disposed within the limiting top plate. The buffer compression cylinder supports and limits the movement of the buffer connecting rod. The buffer connecting rod is located inside the buffer compression cylinder, facilitating support and limiting of the limiting ring. Simultaneously, it allows for compression control of the gas within the buffer compression cylinder through the movement of the buffer connecting rod. A limiting ring is connected to the side of the buffer connecting rod outside the buffer compression cylinder, providing support and limiting for the PE pipe.

[0013] Furthermore, multiple sets of evenly distributed buffer springs are connected between the buffer connecting rod and the buffer compression cylinder. These buffer springs connect the buffer connecting rod and the buffer compression cylinder, facilitating the support and reset of the buffer connecting rod through the contraction and reset of the multiple sets of buffer springs, thereby providing limiting and buffer protection for the PE pipe. A guide air pipe is connected to one side of the buffer compression cylinder, through which the compressed gas inside the cylinder is discharged and transported. An ejector air cylinder is connected to the end of the guide air pipe furthest from the buffer compression cylinder. The ejector air cylinder provides support, limiting, and movement control for the fixed support rod. A fixed support rod is installed inside the ejector air cylinder, which supports and limits the fixed friction plate, facilitating the support and fixation of the PE pipe through multiple sets of fixed friction plates.

[0014] Furthermore, multiple sets of evenly distributed ejector springs are connected between the fixed support rod and the ejector cylinder, facilitating the support rod's support and reset function through the contraction and reset of these springs. A fixed friction plate is connected to the side of the fixed support rod furthest from the ejector springs, and these multiple fixed friction plates limit the ejection of the PE pipe.

[0015] Furthermore, one end of the movable lead screw is connected to a drive motor, which provides power and allows for rotational control of the lead screw by controlling its operation, thereby facilitating movement control of the limiting top plate. The lifting limiting mechanism includes a movable lifting seat, which supports, fixes, and controls the movement of the lifting connecting rod. A lead screw is threadedly connected to the lower part of the movable lifting seat, providing support, limiting, and movement control for the seat. A slide rail slidably connects the movable lifting seat to the worktable, guiding and limiting its movement. One end of the lead screw is driven by a movable motor, which provides power and allows for drive control of the lead screw, thus facilitating movement control of the movable lifting seat.

[0016] Furthermore, the movable lifting seat is equipped with a lifting connecting rod, which supports, limits, and controls the movement of the lifting top block. A rotating fixed shaft is fixedly connected inside the lifting connecting rod, which connects and limits the lifting connecting rod to the movable lifting seat. Simultaneously, it facilitates rotational drive of the lifting connecting rod by rotating the rotating fixed shaft. A lifting motor is driven to one side of the rotating fixed shaft, providing power and allowing adjustment and control of the lifting angle of the lifting connecting rod by controlling the motor's operation. A lifting top block is hinged to the side of the lifting connecting rod away from the rotating fixed shaft, which fixes, limits, and controls the lifting of the other end of the PE pipe.

[0017] Furthermore, a feeding conveyor belt is provided on one side of the control connector for feeding PE pipes. A discharging conveyor belt is provided on the side of the control connector away from the feeding conveyor belt for discharging PE pipes. Each of the pair of arc-shaped limiting members has a drive tooth groove on one side within the control connector. These drive tooth grooves facilitate rotational control of the arc-shaped limiting members, allowing for angle adjustment of the pair of arc-shaped limiting members to guide and limit the PE pipes conveyed on the feeding and discharging conveyor belts.

[0018] Furthermore, the control connector is equipped with a pair of drive gears, both of which mesh with the arc-shaped limiting member. The rotation of these drive gears drives the arc-shaped limiting member. A drive shaft connects the pair of drive gears, providing support, fixation, and rotational drive for the gears. A drive pulley is connected to the drive shaft, driving the shaft's rotation. A synchronous belt is fitted around the drive pulley, connecting it to a transmission pulley, allowing the drive pulley to rotate in tandem with the transmission pulley. A transmission pulley is connected to the side of the synchronous belt away from the drive pulley, transmitting power from the rocking motor. The rocking motor is connected to this pulley, and its operation drives the transmission pulley, facilitating angle adjustment of the arc-shaped limiting member.

[0019] Compared with the prior art, the present invention has the following advantages: by setting a folding deformation control mechanism and a negative pressure swing limiting mechanism, the present invention significantly improves the intelligence level of folding deformation of PE pipe, simplifies the process of folding deformation of PE pipe, enables intelligent manufacturing of folding deformation of PE pipe, and improves the efficiency of folding deformation of PE pipe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a PE pipe folding and deformation machine according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1Schematic diagram of the structure at point A in the middle;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0024] Figure 4 This is a front sectional view of a PE pipe folding and deformation machine according to an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure at point C;

[0026] Figure 6 for Figure 4 Schematic diagram of the structure at point D;

[0027] Figure 7 for Figure 4 Schematic diagram of the structure at point E in the middle;

[0028] Figure 8 This is a side sectional view of a PE pipe folding and deformation machine according to an embodiment of the present invention;

[0029] Figure 9 for Figure 8 Schematic diagram of the structure at point F;

[0030] Figure 10 This is a perspective view of a PE pipe folding and deformation machine according to one embodiment of the present invention.

[0031] In the diagram: 1. Workbench; 2. Hydraulic extrusion deformation mechanism; 201. Deformation work frame; 202. Extrusion limit block; 203. Storage limit ring; 204. Hydraulic control cylinder; 205. Extrusion folding block; 206. Heating wire; 207. Fixing bolt; 208. Hydraulic guide pipe; 209. Liquid filling pipe; 210. Booster pump; 211. Liquid storage tank; 212. Connecting guide pipe; 3. Folding deformation control mechanism; 301. Fixed limit rod; 302. Limiting top plate; 303. Moving screw; 304. Threaded connecting block; 305. Buffer compressed air cylinder; 306. Buffer connecting rod; 307. Limiting ring; 308. Buffer spring; 309. Guide air pipe; 310. Ejection air cylinder; 311. Fixed support rod; 312. Ejection spring. 313. Fixed friction plate; 314. Drive motor; 315. Moving lifting seat; 316. Lead screw; 317. Slide rail; 318. Moving motor; 319. Lifting connecting rod; 320. Rotating fixed shaft; 321. Lifting motor; 322. Lifting top block; 4. Negative pressure swing-type limiting mechanism; 401. Control connecting seat; 402. Arc-shaped limiting component; 403. Negative pressure suction nozzle; 404. Feeding transmission belt; 405. Unloading conveyor belt; 406. Drive gear; 407. Drive shaft; 408. Drive pulley; 409. Synchronous belt; 410. Transmission pulley; 411. Swing motor; 412. Conveying air pipe; 413. Negative pressure air pump; 414. Purified storage box; 415. Purified air pipe; 416. Purified filter layer. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0033] This invention discloses a wear-resistant seal for valve stems, see reference. Figures 1-10 As shown, it includes a worktable 1, a hydraulic extrusion deformation mechanism 2, a folding deformation control mechanism 3, and a negative pressure swing limit mechanism 4.

[0034] See Figures 4-5 As shown, the hydraulic extrusion and deformation mechanism 2 is located above the workbench 1, facilitating the extrusion and folding of the PE pipe. The hydraulic extrusion and deformation mechanism 2 includes a deformation frame 201, which supports and fixes the receiving and limiting ring 203, and also facilitates auxiliary limiting of the PE pipe. The deformation frame 201 contains an extrusion limiting block 202, which supports and limits the PE pipe. Simultaneously, it facilitates the extrusion and folding of the PE pipe through the cooperation of the extrusion limiting block 202 and multiple sets of extrusion and folding blocks 205.

[0035] See Figure 8 As shown, a storage limiting ring 203 is provided on the outer side of the extrusion limiting block 202, which facilitates the fixing and limiting of multiple hydraulic control cylinders 204 through the storage limiting ring 203.

[0036] See Figures 4-5 As shown, multiple evenly distributed hydraulic control cylinders 204 are connected inside the receiving and limiting ring 203. These multiple hydraulic control cylinders 204 control the movement of the extrusion and folding blocks 205. Each of the multiple hydraulic control cylinders 204 contains an extrusion and folding block 205, which matches the extrusion limiting block 202. This facilitates the extrusion and deformation of the PE pipe through the mutual extrusion of the multiple extrusion and folding blocks 205 and the extrusion limiting block 202.

[0037] See Figures 4-5 As shown, the extrusion limiting block 202 is equipped with multiple sets of heating wires 206, which facilitates heating the extrusion limiting block 202 by controlling the operation of the multiple sets of heating wires 206. This allows the PE pipe to be folded and deformed through the cooperation of the extrusion limiting block 202 and the multiple sets of extrusion folding blocks 205. A fixing bolt 207 connects the extrusion limiting block 202 and the fixing limiting rod 301, which provides support and fixation for the extrusion limiting block 202.

[0038] See Figures 4-5 As shown, multiple hydraulic control cylinders 204 are connected by hydraulic guide pipes 208, which facilitate communication between them and allow for synchronous drive control of the cylinders 204 by supplying hydraulic oil to individual cylinders. A filling pipe 209 is connected to the side of each hydraulic control cylinder 204 away from the extrusion folding block 205. The filling pipe 209 connects the hydraulic control cylinder 204 to the booster pump 210, facilitating the supply of hydraulic oil to the cylinders. The end of the filling pipe 209 located within the deformation frame 201 is connected to the booster pump 210. Controlling the operation of the booster pump 210 pressurizes and extracts the hydraulic oil within the connecting guide pipe 212.

[0039] See Figure 4 As shown, a reservoir 211 is provided on one side of the booster pump 210 to facilitate the storage of hydraulic oil. A connecting pipe 212 connects the booster pump 210 and the reservoir 211, serving to connect the booster pump 210 and the reservoir 211.

[0040] See Figures 1-3As shown, the folding deformation control mechanism 3 is located above the workbench 1, facilitating the fixing and deformation control of the PE pipe to be processed. The folding deformation control mechanism 3 includes a fixed limiting rod 301, which is located within the deformation work frame 201, facilitating the support and fixing of the extrusion limiting block 202. Simultaneously, the fixed limiting rod 301 can also limit the movement of the limiting top plate 302.

[0041] See Figures 4-7 As shown, a limiting plate 302 is slidably connected to the outer side of the fixed limiting rod 301. The limiting plate 302 clamps and limits the PE pipe located inside the deformation working frame 201. At the same time, it facilitates the ejection control of the PE pipe sleeved on the outside of the compression limiting block 202 by controlling the movement of the limiting plate 302.

[0042] See Figures 4-7 As shown, the fixed limiting rod 301 is internally threaded with a movable lead screw 303, which supports, limits, and controls the movement of the limiting top plate 302. A threaded connecting block 304 connects the limiting top plate 302 and the movable lead screw 303, facilitating movement control of the limiting top plate 302 by controlling the movement of the threaded connecting block 304.

[0043] See Figures 4-7 As shown, a buffer fixing mechanism is provided within the limiting top plate 302. This mechanism includes a buffer compression cylinder 305, which is located within the limiting top plate 302. The buffer compression cylinder 305 supports and limits the movement of the buffer connecting rod 306. The buffer compression cylinder 305 contains the buffer connecting rod 306, which facilitates the support and limiting of the limiting ring 307. Simultaneously, the movement of the buffer connecting rod 306 allows for compression control of the gas within the buffer compression cylinder 305.

[0044] See Figures 4-7 As shown, the buffer connecting rod 306 is connected to a limit ring 307 on one side outside the buffer compressed air cylinder 305. The limit ring 307 supports and limits the PE pipe.

[0045] See Figures 4-7 As shown, multiple sets of evenly distributed buffer springs 308 are connected between the buffer connecting rod 306 and the buffer compressed air cylinder 305. The buffer springs 308 serve to connect the buffer connecting rod 306 and the buffer compressed air cylinder 305, and facilitate the support and reset of the buffer connecting rod 306 through the contraction and reset of the multiple sets of buffer springs 308, thereby facilitating the limiting and buffer protection of the PE pipe.

[0046] See Figures 4-7 As shown, a guide air pipe 309 is connected to one side of the buffer compression cylinder 305, through which the compressed gas inside the buffer compression cylinder 305 is discharged and transported. The end of the guide air pipe 309 away from the buffer compression cylinder 305 is connected to an ejector cylinder 310, which supports, limits, and controls the movement of the fixed support rod 311. The ejector cylinder 310 contains a fixed support rod 311, which supports and limits the fixed friction plate 313, facilitating the support and fixation of the PE pipe through multiple sets of fixed friction plates 313.

[0047] See Figures 4-7 As shown, multiple sets of evenly distributed ejector springs 312 are connected between the fixed support rod 311 and the ejector air cylinder 310. The contraction and repositioning of these springs facilitate support and repositioning of the fixed support rod 311. A fixed friction plate 313 is connected to the side of the fixed support rod 311 furthest from the ejector springs 312. These fixed friction plates 313 limit the ejection of the PE pipe.

[0048] See Figure 4 As shown, one end of the movable lead screw 303 is connected to a drive motor 314. The drive motor 314 provides power, and by controlling the operation of the drive motor 314, the movable lead screw 303 can be rotated, thereby facilitating the movement control of the limit plate 302.

[0049] See Figures 1-2 As shown, a lifting limiting mechanism is provided on one side of the fixed limiting rod 301. The lifting limiting mechanism is matched with the extrusion limiting block 202. Through the cooperation between the lifting limiting mechanism and the limiting top plate 302, the PE pipe is clamped, fixed and assisted in limiting.

[0050] See Figures 1-2 As shown, the lifting and limiting mechanism includes a movable lifting seat 315, which facilitates the support, fixation, and movement control of the lifting connecting rod 319. A lead screw 316 is threadedly connected to the lower part of the movable lifting seat 315. The lead screw 316 provides support, limiting, and movement control for the movable lifting seat 315. A slide rail 317 is slidably connected between the movable lifting seat 315 and the worktable 1, providing guidance and limiting for the movement of the movable lifting seat 315.

[0051] See Figure 1 As shown, a movable motor 318 is connected to one end of the lead screw 316. The movable motor 318 provides power and facilitates the drive control of the lead screw 316 by controlling the operation of the movable motor 318, thereby facilitating the movement control of the movable lifting seat 315.

[0052] See Figures 1-3 As shown, a lifting connecting rod 319 is provided on the movable lifting seat 315, which plays a role in supporting and limiting and moving control of the lifting top block 322 through the lifting connecting rod 319. A rotating fixed shaft 320 is fixedly connected inside the lifting connecting rod 319. The rotating fixed shaft 320 plays a role in connecting and limiting the lifting connecting rod 319 and the movable lifting seat 315. At the same time, it is convenient to rotate the lifting connecting rod 319 by driving the rotation of the rotating fixed shaft 320.

[0053] See Figures 1-3 As shown, a lifting motor 321 is传动连接 (it seems there is a mistake here, maybe "drivingly connected") on one side of the rotating fixed shaft 320. The lifting motor 321 plays a role in providing power, and it is convenient to adjust and control the lifting angle of the lifting connecting rod 319 by controlling the operation of the lifting motor 321. The lifting connecting rod 319 is hinged with a lifting top block 322 on the side away from the rotating fixed shaft 320, and the lifting top block 322 plays a role in fixing and limiting and lifting control of the other end of the PE pipe.

[0054] See Figures 4-6 As shown, a negative pressure swing type limiting mechanism 4 is arranged on one side of the deformation working frame 201, which is convenient to limit the PE pipe and assist in loading and unloading through the negative pressure swing type limiting mechanism 4, and improves the intelligent degree of folding the PE pipe. The negative pressure swing type limiting mechanism 4 includes a control connection seat 401, and the control connection seat 401 plays a role in rotating and limiting the arc-shaped limiting member 402.

[0055] See Figures 4-9 As shown, a pair of arc-shaped limiting members 402 are rotatably connected to the side of the control connection seat 401 away from the workbench 1. The pair of arc-shaped limiting members 402 play a role in supporting and limiting the PE pipe and assisting in loading and unloading, and improve the convenience and stability of loading and unloading the PE pipe.

[0056] Specifically, the pair of arc-shaped limiting members 402 are hollowly arranged, which is convenient to generate negative pressure on the negative pressure suction nozzle 403 by extracting air from the arc-shaped limiting members 402, so as to facilitate the auxiliary fixation of the PE pipe.

[0057] See Figures 8-9As shown, a plurality of evenly distributed negative pressure suction nozzles 403 are connected inside each of the pair of arc-shaped limiting members 402. The PE pipe is assisted and fixed by generating negative pressure through the plurality of negative pressure suction nozzles 403, improving the stability of the arc-shaped limiting members 402 to support and limit the PE pipe. At the same time, it is convenient to cool down the folded and deformed PE pipe by extracting air through the plurality of negative pressure suction nozzles 403, avoiding the deformation of the PE pipe affected by temperature and improving the stability of folding and deforming the PE pipe. In addition, harmful gases generated during the folding and deformation process of the PE pipe are adsorbed and discharged by extracting air through the plurality of negative pressure suction nozzles 403, improving the environmental protection of folding and deforming the PE pipe.

[0058] Refer Figure 8 As shown, a feeding conveyor belt 404 is provided on one side of the control connection seat 401, and the PE pipe is fed through the feeding conveyor belt 404. A discharging conveyor belt 405 is provided on the side of the control connection seat 401 away from the feeding conveyor belt 404, facilitating the discharging of the PE pipe through the discharging conveyor belt 405.

[0059] Specifically, driving tooth grooves are provided on one side of each of the pair of arc-shaped limiting members 402 located inside the control connection seat 401. By providing the driving tooth grooves, it is convenient to rotate and drive the arc-shaped limiting members 402, so as to guide and limit the PE pipes conveyed on the feeding conveyor belt 404 and the discharging conveyor belt 405 by adjusting the angles of the pair of arc-shaped limiting members 402.

[0060] Refer Figures 8-9 As shown, a pair of driving gears 406 are provided inside the control connection seat 401. The pair of driving gears 406 are both engaged with the arc-shaped limiting members 402, and the arc-shaped limiting members 402 are rotationally driven by controlling the rotation of the pair of driving gears 406.

[0061] Refer Figures 4-6 As shown, a driving rotating shaft 407 is connected between the pair of driving gears 406. The driving rotating shaft 407 supports and fixes the driving gears 406 and rotates and drives them. A driving belt pulley 408 is connected to the driving rotating shaft 407, and the driving belt pulley 408 rotates and drives the driving rotating shaft 407. A synchronous belt 409 is sleeved outside the driving belt pulley 408. The synchronous belt 409 connects the driving belt pulley 408 and the transmission belt pulley 410, causing the driving belt pulley 408 to rotate correspondingly with the rotation of the transmission belt pulley 410 under the action of the synchronous belt 409.

[0062] Refer Figures 4-6As shown, on the side of the synchronous belt 409 away from the driving pulley 408, a transmission pulley 410 is connected. The transmission pulley 410 plays the role of transmitting the power of the swing motor 411. The swing motor 411 is connected to the transmission pulley 410. By controlling the operation of the swing motor 411, the driving control of the transmission pulley 410 is carried out, so as to facilitate the angle adjustment control of the arc-shaped limiting member 402.

[0063] Among them, on both sides of a pair of arc-shaped limiting members 402, a conveying air pipe 412 is connected. The conveying air pipe 412 plays the role of connecting the negative pressure air pump 413 and the arc-shaped limiting member 402, facilitating the extraction of the gas in the arc-shaped limiting member 402 by controlling the operation of the negative pressure air pump 413, so as to facilitate the arc-shaped limiting member 402 to be in a negative pressure state.

[0064] Refer to Figure 4 As shown, a negative pressure air pump 413 is connected below the conveying air pipe 412, facilitating the extraction of the air in the arc-shaped limiting member 402 by controlling the operation of the negative pressure air pump 413, so as to facilitate the arc-shaped limiting member 402 to have the function of negative pressure support and limitation. A purification storage tank 414 is provided on one side of the negative pressure air pump 413. The purification storage tank 414 plays the role of storing the purification adsorption liquid, and at the same time facilitates the storage of the harmful gases collected by the negative pressure air pump 413 through the purification storage tank 414, avoiding the pollution to the environment during the folding deformation process of the PE pipe and improving the environmental protection of the folding deformation of the PE pipe.

[0065] Refer to Figure 4 As shown, a purification air pipe 415 is connected between the negative pressure air pump 413 and the purification storage tank 414, facilitating the conduction and transportation of the harmful gases collected by the negative pressure air pump 413 through the purification air pipe 415. The purification storage tank 414 is filled with a purification adsorption liquid, facilitating the adsorption and purification of the harmful gases transported in the purification air pipe 415 by the purification adsorption liquid, improving the environmental protection of the folding deformation treatment of the PE pipe. A plurality of evenly distributed purification filter layers 416 are provided in the purification storage tank 414, facilitating the guiding of the purification adsorption liquid by the plurality of purification filter layers 416, so as to facilitate the improvement of the adsorption and purification effect of the purification adsorption liquid on the harmful gases.

[0066] In practical use, during the folding and deformation process of PE pipes, the PE pipes that need to be folded and deformed are conveyed and fed by the feeding conveyor belt 404. During the feeding of PE pipes via the feeding conveyor belt 404, the operation of the swing motor 411 drives the transmission pulley 410 to rotate. The drive shaft 407 rotates accordingly with the rotation of the transmission pulley 410 under the cooperation of the drive pulley 408 and the synchronous belt 409. The rotation of the drive shaft 407 drives the drive gear 406 to rotate. Subsequently, a pair of arc-shaped limiting members 402 rotate to one side of the lower conveyor belt 405 under the action of the drive gear 406. By controlling the rotation of the arc-shaped limiting members 402 to the lower conveyor belt 405, the pair of arc-shaped limiting members 402 limit the PE pipes conveyed on the feeding conveyor belt 404, preventing the PE pipes from being discharged from the lower conveyor belt 405 without being folded or deformed under external force, thus improving the stability of feeding the PE pipes. After feeding is completed, the pair of arc-shaped limiting members 402 are reset by controlling the rotation of the swing motor 411.

[0067] Simultaneously, by controlling the operation of the negative pressure air pump 413, air is extracted from the arc-shaped limiting member 402, thus placing the arc-shaped limiting member 402 in a negative pressure state. The multiple sets of negative pressure suction nozzles 403 create a negative pressure adsorption effect on the PE pipe by the arc-shaped limiting member 402, improving the stability of the arc-shaped limiting member 402 in supporting and limiting the PE pipe. Furthermore, the multiple sets of negative pressure suction nozzles 403 facilitate the cooling and temperature reduction of the folded and deformed PE pipe by extracting outside air. Additionally, harmful gases generated during the folding and deformation process of the PE pipe can be collected by the multiple sets of negative pressure suction nozzles 403.

[0068] When the PE pipe reaches the designated position, the movement of the moving motor 318 drives the lead screw 316 to rotate. The moving lifting seat 315, under the action of its internal and external threads, moves the lifting top block 322. The PE pipe is clamped and fixed through the cooperation of the lifting top block 322, the compression limiting block 202, and the limiting top plate 302. Furthermore, during the fixing of the PE pipe by the limiting top plate 302, the PE pipe is buffered and limited by the cooperation of the limiting ring 307 and the buffer spring 308, preventing deformation of the PE pipe under external force during fixing. During the buffering and limiting of the PE pipe by the limiting ring 307, the gas in the buffer compressed air cylinder 305 is delivered to the ejector air cylinder 310 under the compression action of the buffer connecting rod 306. Through air pressure control, the fixed friction plate 313 ejects and fixes the PE pipe, improving the effect of fixing and limiting the PE pipe.

[0069] Subsequently, the extrusion limiting block 202 can be heated by controlling the operation of multiple sets of heating wires 206, and hydraulic oil can be delivered to multiple hydraulic control cylinders 204 by controlling the operation of the booster pump 210. Multiple extrusion folding blocks 205 are then hydraulically controlled to extrude and fold the PE pipe. The PE pipe is folded through the cooperation of the multiple extrusion folding blocks 205 and the extrusion limiting block 202. Simultaneously, the folded PE pipe is moved by controlling the movement of the limiting top plate 302 and the movable lifting seat 315. During the movement, the lifting connecting rod 319 can be rotated by controlling the movement of the lifting motor 321. The cooperation of the lifting connecting rod 319 and the lifting top block 322 provides lifting and limiting for the PE pipe, improving the folding deformation of the PE pipe and enabling intelligent manufacturing.

[0070] As can be seen from the above technical solutions, the present invention has the following beneficial effects: By setting a folding deformation control mechanism and a negative pressure swing-type limiting mechanism, the present invention significantly improves the intelligence level of folding deformation of PE pipes, simplifies the process of folding deformation of PE pipes, enables intelligent manufacturing of folding deformation of PE pipes, and improves the efficiency of folding deformation of PE pipes.

[0071] It will be apparent to those skilled in the art that the present 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 characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A PE pipe folding and deformation machine, characterized in that, include: Workbench; A hydraulic extrusion deformation mechanism is located above the worktable. The hydraulic extrusion deformation mechanism includes a deformation work frame, an extrusion limiting block is provided inside the deformation work frame, a receiving limiting ring is provided outside the extrusion limiting block, and multiple evenly distributed hydraulic control cylinders are connected inside the receiving limiting ring. Each of the multiple hydraulic control cylinders is provided with an extrusion folding block, and the extrusion folding block matches the extrusion limiting block. A folding and deformation control mechanism is located above the worktable. The folding and deformation control mechanism includes a fixed limiting rod located inside the deformation work frame. A limiting top plate is slidably connected to the outer side of the fixed limiting rod. A buffer fixing mechanism is provided inside the limiting top plate. A movable lead screw is threadedly connected to the fixed limiting rod. A threaded connecting block is connected between the limiting top plate and the movable lead screw. A lifting limiting mechanism is provided on one side of the fixed limiting rod. The lifting limiting mechanism matches the extrusion limiting block. A negative pressure swing-type limiting mechanism is provided on one side of the deformable work frame. The negative pressure swing-type limiting mechanism includes a control connecting seat. A pair of arc-shaped limiting members are rotatably connected to the side of the control connecting seat away from the worktable. Multiple evenly distributed negative pressure suction nozzles are connected to each pair of arc-shaped limiting members.

2. The PE pipe folding and deformation machine according to claim 1, characterized in that, The extrusion limiting block is equipped with multiple sets of heating wires, and a fixing bolt connects the extrusion limiting block to the fixed limiting rod. Hydraulic conduits are connected between the multiple hydraulic control cylinders.

3. A PE pipe folding and deformation machine according to claim 1, characterized in that, The hydraulic control cylinder is connected to a liquid filling pipe on the side away from the extrusion folding block. One end of the liquid filling pipe, located inside the deformation working frame, is connected to a booster pump. A liquid storage tank is provided on one side of the booster pump, and a connecting pipe connects the booster pump and the liquid storage tank.

4. A PE pipe folding and deformation machine according to claim 1, characterized in that, The buffer fixing mechanism includes a buffer compressed air cylinder, which is located inside the limiting top plate. A buffer connecting rod is provided inside the buffer compressed air cylinder, and a limiting ring is connected to the side of the buffer connecting rod located outside the buffer compressed air cylinder.

5. A PE pipe folding and deformation machine according to claim 4, characterized in that, Multiple sets of evenly distributed buffer springs are connected between the buffer connecting rod and the buffer compression cylinder. A guide air pipe is connected to one side of the buffer compression cylinder, and an outlet air cylinder is connected to the end of the guide air pipe away from the buffer compression cylinder.

6. A PE pipe folding and deformation machine according to claim 5, characterized in that, The ejector cylinder is equipped with a fixed support rod, and multiple sets of evenly distributed ejector springs are connected between the fixed support rod and the ejector cylinder. A fixed friction plate is connected to the side of the fixed support rod away from the ejector springs.

7. A PE pipe folding and deformation machine according to claim 1, characterized in that, One end of the movable lead screw is connected to a drive motor. The lifting limiting mechanism includes a movable lifting seat, with a lead screw threadedly connected to the lower part of the movable lifting seat. A slide rail is slidably connected between the movable lifting seat and the worktable. One end of the lead screw is drivenly connected to a movable motor.

8. A PE pipe folding and deformation machine according to claim 7, characterized in that, The movable lifting seat is provided with a lifting connecting rod, and a rotating fixed shaft is fixedly connected inside the lifting connecting rod. A lifting motor is driven to one side of the rotating fixed shaft, and a lifting top block is hinged to the side of the lifting connecting rod away from the rotating fixed shaft.

9. A PE pipe folding and deformation machine according to claim 1, characterized in that, The control connector is provided with a feeding conveyor belt on one side and a discharging conveyor belt on the side of the control connector away from the feeding conveyor belt. A pair of arc-shaped limiting members are provided with driving tooth grooves on the side of the control connector located inside the control connector.

10. A PE pipe folding and deformation machine according to claim 9, characterized in that, The control connector is equipped with a pair of drive gears, both of which mesh with the arc-shaped limiting member. A drive shaft is connected between the pair of drive gears, and a drive pulley is connected to the drive shaft. A synchronous belt is fitted on the outer side of the drive pulley, and a transmission pulley is connected to the side of the synchronous belt away from the drive pulley. A rocking motor is connected to the transmission pulley.

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