A drawing device for high pressure pipe processing

Abstract

The present invention relates to the technical field of high-pressure pipe manufacturing, and specifically to a drawing device for high-pressure pipe processing, the drawing device comprising a machine base, an extrusion device, a cooling pool and a pulling mechanism, the extrusion device is arranged above the machine base, the extrusion device comprises a driving mechanism, a feeding seat, a screw barrel, a protective seat and a molding seat. Compared with the current high-pressure pipe drawing device, the present invention is provided with a protective component. When the molten material encounters a poor circulation in the molding channel, the protective component can timely cut off the connection between the first discharge channel and the second discharge channel. The molding seat and the protective seat in the present invention are detachably connected by threads, so that the molding seat can be replaced or repaired without stopping the machine. The present invention is also provided with a detection component. On the one hand, the detection component can monitor the rotation angle of the protective disk in real time, and on the other hand, it has a positioning function to avoid accidental rotation of the protective disk when an accidental power outage occurs.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure pipe manufacturing, in particular to a drawing device for high-pressure pipe processing. Background Art

[0002] A high-pressure pipe is a pipe used to withstand high-pressure liquids or gases. It is usually made of materials with high pressure resistance, such as metal, rubber, PVC, etc. Among them, high-pressure pipes made of rubber, PVC and other materials are usually used to transport high-pressure liquids or gases. Their production often requires special production and molding equipment.

[0003] The working principle of the current drawing device for high-pressure pipe processing is generally as follows: "CN108527816B A rubber tube forming device (publication date 2020.04.21)", "CN216100298U A PVC pipe production extrusion thermoplastic forming equipment (publication date 2022.03.22)". During the production process, the discharge port of the mold may sometimes have problems such as shape distortion or deformation due to long-term use or improper operation. At this time, the staff often need to stop the machine for maintenance, so that the material in the barrel is often scrapped, thereby increasing production costs; in addition, in order to prevent large particles from getting stuck in the conveying mechanism during the production process of the current high-pressure pipe, a screen is often set, but the current operation method requires the staff to clean the screen regularly, otherwise the material will easily accumulate on the screen; finally, when the drawing device fails, it is inconvenient for the staff to remove the material from the device, and when the device is disassembled, the material is often scattered everywhere. Summary of the invention

[0004] The object of the present invention is to provide a drawing device for high-pressure pipe processing to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a drawing device for high-pressure pipe processing, the drawing device includes a machine base, an extrusion device, a cooling pool and a pulling mechanism, the extrusion device is arranged above the machine base, the extrusion device includes a driving mechanism, a feeding seat, a screw barrel, a protective seat and a molding seat, the feeding seat, the screw barrel, the protective seat and the molding seat are arranged in sequence at the working end of the driving mechanism, a feeding channel is arranged at the upper end of the feeding seat, a transmission assembly is arranged at one end of the feeding seat close to the driving mechanism, a funnel is arranged on the feeding channel, before work, the material is placed in the funnel, a first discharge channel, a protective assembly and a second discharge channel are arranged in the protective seat, the protective assembly is arranged between the first discharge channel and the second discharge channel, a molding channel is arranged in the molding seat, the molding channel is connected to the second discharge channel, a shaping rod is arranged in the molding channel, the shaping rod is fixedly connected to the protective seat, a screw barrel is arranged in The invention also provides a heating element for the molding seat and a heater, wherein one end of the screw is connected to the driving mechanism through a transmission assembly, and the other end of the screw extends into the first discharge channel, and the material is transported by the screw. The heater is arranged on the inner wall of the barrel, and the material in the barrel is heated and melted by the heater. The cooling pool and the pulling mechanism are sequentially arranged on the side of the molding seat away from the barrel, and the molded high-pressure pipe is pulled out of the extrusion device by the pulling mechanism. The high-pressure pipe will pass through the cooling pool when being pulled out, and the newly formed high-pressure pipe will be cooled by the cooling pool for subsequent winding processing. Compared with the current drawing device, the present invention is provided with a protective component. When the molten material encounters a poor circulation in the molding channel, the protective component can cut off the connection between the first discharge channel and the second discharge channel. In the present invention, the molding seat and the protective seat are detachably connected by a thread, and the staff can separate the molding seat from the protective seat by rotating the molding seat, so as to replace or repair the molding seat without stopping the machine.

[0006] Furthermore, the protection component includes a rotating motor, a gear component, a protection plate, a sensing block and a detection component. The rotating motor and the detection component are relatively arranged on both sides of the first discharge channel. The protection plate is arranged between the first discharge channel and the second discharge channel. A through hole is arranged on the protection plate. When the present invention is working normally, the through hole is always aligned with the second discharge channel to facilitate the molten material to flow along the first discharge channel and the second discharge channel into the molding channel. The first discharge channel is provided with a sensing groove on one side close to the molding seat. One end of the sensing block is arranged in the sensing groove. The other end of the block passes through the protective plate and is arranged in the first discharge channel. The end of the sensing groove away from the sensing block is provided with a first piezoelectric sheet. A compression spring is provided between the first piezoelectric sheet and the sensing block. In the actual working process, the forming channel and the shaping rod may be distorted or deformed due to long-term use or improper operation, thereby increasing the flow resistance of the molten material. When the present invention encounters the above-mentioned problem, the pressure in the first discharge channel will surge, thereby causing the sensing block to move into the sensing groove. When the sensing block moves, the compression spring will deform, thereby causing the first compression spring to deform. The electric sheet generates a group of electrical signals. The staff can judge the severity of the blockage of the molten material in the molding seat and the protective seat through the size of the electrical signal generated by the first piezoelectric sheet. When the severity exceeds the set value (the value is set by the staff according to actual needs), the rotating motor drives the protective plate and the detection component to work through the gear assembly. The gear assembly in the present invention includes a first gear, a second gear and a third gear. The second gear is arranged on the outer side of the protective plate. The first gear and the third gear are both meshed with the second gear. The rotating motor is connected to the first gear, and the detection component is connected to the third gear. The protective plate and the detection component are driven to work by the rotating motor. When the protective plate is working, the through hole on the protective plate is staggered with the second discharge channel, thereby separating the first discharge channel and the second discharge channel, so that the staff can replace or repair the molding seat without stopping the machine. When the detection component is working, the staff can monitor the rotation angle of the protective plate in real time to avoid the rotating motor. The through hole cannot be completely staggered with the second discharge channel due to the controller or current voltage, so that when the staff replaces or repairs the molding seat, the molten material flows out of the second discharge channel.

[0007] Furthermore, the detection component includes a detection seat and a transmission shaft, the detection seat is provided with an arc groove and a movable groove, the movable groove is provided with a movable plate, the arc groove is provided with a second positioning block, one end of the transmission shaft is connected to the third gear, the other end of the transmission shaft is connected to the movable plate, the movable plate is connected to the second positioning block through an arc spring rod, and the end of the movable plate close to the arc spring rod is provided with a second piezoelectric sheet. When the protection component in the present invention is working, the rotating motor will drive the protection plate and the transmission shaft to rotate synchronously, and the transmission shaft will drive the movable plate, the arc spring rod and the second positioning block to rotate when rotating. At this time, the spring on the arc spring rod is compressed and deformed, and the amplitude of the spring deformation is detected by the electrical signal generated by the second piezoelectric sheet, and the rotation angle of the protection plate is judged in turn whether it meets the standard, so as to avoid accidents when the staff disassembles the forming seat later.

[0008] Furthermore, the end of the second positioning block away from the arc spring rod is an arc-shaped structure, the side of the arc slot away from the movable slot is provided with a positioning slot, the end of the positioning slot close to the arc slot is provided with a first positioning block, the end of the positioning slot away from the arc slot is provided with a second electromagnet, the first positioning block is connected to the positioning slot through a reset spring rod, the end of the first positioning block close to the second electromagnet is magnetic, the end of the first positioning block away from the second electromagnet extends into the arc slot and is an arc structure, when the protective component in the present invention is working, the second electromagnet does not work, and when the rotating motor drives the protective disk and the transmission shaft to rotate, The second positioning block will rotate in the arc groove. When the protective disk rotates to the target angle, the second positioning block will eventually pass over the first positioning block. The first positioning block is used to prevent the second positioning block from rotating, thereby avoiding unexpected power outages and the like. The protective disk rotates unexpectedly, so that the first discharge channel is reconnected with the second discharge channel. Finally, after the replacement and maintenance of the forming seat is completed, the staff can turn on the second electromagnet to generate a magnetic field that attracts the first positioning block, so that the first positioning block is retracted into the positioning groove, thereby facilitating the through hole on the protective disk to be aligned with the second discharge channel again.

[0009] Furthermore, a cooling channel is provided on the outside of the molding channel, and an outer groove and an inner groove are provided on the inside of the molding rod. The end of the outer groove away from the protective seat is connected with the end of the inner groove away from the protective seat. The end of the protective seat close to the molding rod is provided with a first through groove and a second through groove, the first through groove is connected with the outer groove, and the second through groove is connected with the inner groove. When the present invention is working, the liquid outlet end of the external cooling system is connected with the inlet end of the cooling channel and the second through groove, and the liquid inlet end of the external cooling system is connected with the outlet end of the cooling channel and the first through groove. At this time, the coolant will flow between the cooling channel, the outer groove and the inner groove. Through the above technical scheme, the outer wall and the inner wall of the high-pressure pipe are cooled evenly to avoid affecting the quality of the high-pressure pipe.

[0010] Furthermore, a discharge trough is provided at the lower end of the feed seat, a feeding cavity is provided between the discharge trough and the feed channel, a sealing plate is provided at one end of the discharge trough close to the feeding cavity, the sealing plate is connected to the discharge trough through a sealing spring rod, a first electromagnet is provided at one end of the discharge trough away from the feeding cavity, a plurality of groups of latches are provided at one end of the sealing plate away from the first electromagnet, the sealing plate has magnetism at one end close to the first electromagnet, a plurality of groups of discharge holes are provided at one end of the feeding cavity close to the discharge trough, the latches cooperate with the discharge holes, and when the present invention is working normally, the latches are inserted into the discharge holes, and when the device fails, the sealing plate is driven away from the feeding cavity by the first electromagnet. At this time, the staff only needs to set a group of suction fans on the outside of the discharge trough to suck out the material in the feeding cavity, thereby avoiding the problem of needing to disassemble the feed seat to take out the material in the feeding cavity.

[0011] Furthermore, a sieve plate is provided in the feed channel, and a linkage frame and a telescopic slot are provided at the side end of the feed channel, one end of the linkage frame is provided in the telescopic slot, and the other end of the linkage frame is fixedly connected to the sieve plate and is wound with a vibration spring, and the transmission assembly is connected to the telescopic slot. When the present invention loads materials, the materials will first pass through the sieve plate and then enter the feed cavity, and unqualified large-volume materials will be screened out by the sieve plate to avoid the subsequent screw from getting stuck. The transmission assembly drives the screw to rotate while causing the linkage frame and the sieve plate to vibrate up and down, thereby avoiding the problem of material accumulation on the sieve plate.

[0012] Furthermore, the transmission assembly includes a transmission seat, a cam, a transmission groove and a transmission plate, one end of the transmission seat is connected to the screw, the other end of the transmission seat is connected to the working end of the driving mechanism, the cam is arranged on the outside of the transmission seat, the transmission groove is arranged on the side end of the feed channel, the transmission plate is movably installed in the transmission groove through a lifting spring rod, and the transmission groove is connected to the telescopic groove through a guide groove. In the present invention, compressed gas is arranged in the transmission groove. When the driving mechanism drives the screw to rotate, the cam will synchronously drive the transmission plate to perform a lifting movement in the transmission groove. At this time, the compressed gas in the transmission groove will intermittently enter the telescopic groove, so that the linkage frame and the screen plate vibrate. Through the above technical scheme, the frequency of staff cleaning the screen plate is reduced.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: compared with the current high-pressure pipe drawing device, the present invention is provided with a protective component. When the molten material encounters a poor flow in the molding channel, the protective component can promptly detect the above phenomenon and cut off the connection between the first discharge channel and the second discharge channel. The molding seat and the protective seat in the present invention are detachably connected by threads. The staff can separate the molding seat from the protective seat by rotating the molding seat, so as to replace or repair the molding seat without stopping the machine. The present invention is also provided with a detection component. On the one hand, the detection component can monitor the rotation angle of the protective disk in real time to prevent the rotating motor from being unable to completely misalign the through hole with the second discharge channel due to reasons such as the controller or current voltage, so that when the molding seat is disassembled, the molten material flows out of the second discharge channel. On the other hand, the detection component has a fixed The invention also provides a sealing plate and a first electromagnet, and a plurality of groups of pins are arranged at one end of the sealing plate away from the first electromagnet, and a plurality of groups of discharge holes are arranged at one end of the feeding chamber close to the discharge trough. During normal operation, the pins are inserted into the discharge holes. When the device fails, the sealing plate is driven away from the feeding chamber by the first electromagnet. At this time, the staff only needs to arrange a group of suction fans on the outside of the discharge trough to suck out the materials in the feeding chamber, and the problem of needing to disassemble the feeding seat to take out the materials in the feeding chamber is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the extrusion device of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the protective seat and the forming seat of the present invention;

[0018] Figure 4 The present invention Figure 3 Schematic diagram of the structure of the middle AA section;

[0019] Figure 5It is a schematic diagram of the structure of the detection component of the present invention;

[0020] Figure 6 The present invention Figure 5 Schematic diagram of the CC structure;

[0021] Figure 7 It is a schematic diagram of the shaping rod structure of the present invention;

[0022] Figure 8 The present invention Figure 3 Schematic diagram of the structure of the middle BB part;

[0023] Fig. 9 It is a schematic diagram of the structure of the feed seat of the present invention;

[0024] Fig.10 It is a schematic diagram of the structure of the feed seat when a fault occurs in the present invention.

[0025] In the figure: 1, machine base; 2, extrusion device; 21, driving mechanism; 22, funnel; 23, feed seat; 231, feed channel; 232, sealing plate; 233, first electromagnet; 24, transmission assembly; 241, transmission seat; 242, cam; 243, transmission groove; 244, transmission plate; 25, sieve plate; 251, linkage frame; 252, telescopic groove; 26, screw barrel; 27, screw; 28, protective seat; 281, first discharge channel; 282, gear assembly; 283, second discharge channel; 284, detection assembly ; 2841, detection seat; 2842, transmission shaft; 2843, second electromagnet; 2844, first positioning block; 2845, arc groove; 2846, movable plate; 2847, movable groove; 2848, second positioning block; 285, protective plate; 2851, through hole; 286, induction block; 287, first through groove; 288, second through groove; 29, molding seat; 291, molding rod; 2911, outer groove; 2912, inner groove; 292, cooling channel; 293, molding channel; 3, cooling pool; 4, pulling mechanism. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] See also Figure 1-Figure 10The present invention provides a technical solution: a drawing device for high-pressure pipe processing, the drawing device includes a machine base 1, an extrusion device 2, a cooling pool 3 and a pulling mechanism 4, the extrusion device 2 is arranged above the machine base 1, the extrusion device 2 includes a driving mechanism 21, a feeding seat 23, a screw barrel 26, a protective seat 28 and a molding seat 29, the feeding seat 23, the screw barrel 26, the protective seat 28 and the molding seat 29 are arranged in sequence at the working end of the driving mechanism 21, the upper end of the feeding seat 23 is provided with a feeding channel 231, and the feeding seat 23 is provided at one end close to the driving mechanism 21. There is a transmission component 24, a funnel 22 is arranged on the feed channel 231, before working, the material is placed in the funnel 22, the protective seat 28 is provided with a first discharge channel 281, a protective component and a second discharge channel 283, the protective component is arranged between the first discharge channel 281 and the second discharge channel 283, the molding seat 29 is provided with a molding channel 293, the molding channel 293 is connected to the second discharge channel 283, a shaping rod 291 is arranged in the molding channel 293, the shaping rod 291 is fixedly connected to the protective seat 28, and the screw barrel 26 is provided with a shaping rod 291. A screw 27 and a heater are provided. One end of the screw 27 is connected to the driving mechanism 21 through a transmission assembly 24. The other end of the screw 27 extends into the first discharge channel 281. The material is transported through the screw 27. The heater is provided on the inner wall of the screw barrel 26. The material in the screw barrel 26 is heated and melted by the heater. The cooling pool 3 and the pulling mechanism 4 are sequentially provided on the side of the forming seat 29 away from the screw barrel 26. The formed high-pressure pipe is pulled out of the extruder 2 by the pulling mechanism 4. The high-pressure pipe passes through the cooling pool 3 when being pulled out. The newly formed high-pressure pipe is cooled down for subsequent winding processing. Compared with the current drawing device, the present invention is provided with a protective component. When the molten material encounters poor circulation in the forming channel 293, the protective component can cut off the connection between the first discharge channel 281 and the second discharge channel 283. In the present invention, the forming seat 29 and the protective seat 28 are detachably connected by threads. The staff can rotate the forming seat 29 to separate the forming seat 29 from the protective seat 28, so as to replace or repair the forming seat 29 without stopping the machine.

[0028] like Figure 3-Figure 4As shown, the protection assembly includes a rotating motor, a gear assembly 282, a protection plate 285, a sensing block 286 and a detection assembly 284. The rotating motor and the detection assembly 284 are relatively arranged on both sides of the first discharge channel 281. The protection plate 285 is arranged between the first discharge channel 281 and the second discharge channel 283. The protection plate 285 is provided with a through hole 2851. When the present invention is working normally, the through hole 2851 is always aligned with the second discharge channel 283 to facilitate the molten material to flow along the first discharge channel 281 and the second discharge channel 283 to the molding channel 293. The first discharge channel 281 is provided with a sensing groove on one side close to the molding seat 29. The sensing block 286 is provided with a sensing groove on the other side of the first discharge channel 281. One end of the sensing block 286 is arranged in the sensing groove, and the other end of the sensing block 286 passes through the protective plate 285 and is arranged in the first discharge channel 281. A first piezoelectric sheet is arranged at one end of the sensing groove away from the sensing block 286, and a compression spring is arranged between the first piezoelectric sheet and the sensing block 286. In the actual working process, the molding channel 293 and the molding rod 291 may have problems such as shape distortion or deformation due to long-term use or improper operation, thereby increasing the flow resistance of the molten material. When the present invention encounters the above-mentioned problem, the pressure in the first discharge channel 281 will surge, thereby causing the sensing block 286 to move into the sensing groove. When the sensing block 286 moves, the compression spring will deform, thereby increasing the flow resistance of the molten material. The first piezoelectric sheet generates a group of electrical signals. The staff can judge the severity of the blockage of the molten material in the molding seat 29 and the protective seat 28 through the size of the electrical signals generated by the first piezoelectric sheet. When the severity exceeds the set value (the value is set by the staff according to actual needs), the rotating motor drives the protective plate 285 and the detection component 284 to work through the gear assembly 282. In the present invention, the gear assembly 282 includes a first gear, a second gear and a third gear. The second gear is arranged on the outside of the protective plate 285. The first gear and the third gear are both meshed with the second gear. The rotating motor is connected to the first gear, and the detection component 284 is connected to the third gear. The protective disk 285 and the detection component 284 are driven to work by a rotating motor. When the protective disk 285 is working, the through hole 2851 on the protective disk 285 is staggered with the second discharge channel 283, thereby separating the first discharge channel 281 and the second discharge channel 283, making it convenient for the staff to replace or repair the forming seat 29 without stopping the machine. When the detection component 284 is working, the staff can monitor the rotation angle of the protective disk 285 in real time to prevent the rotating motor from causing the through hole 2851 to be unable to be completely staggered with the second discharge channel 283 due to reasons such as the controller or current and voltage, so that when the staff replaces or repairs the forming seat 29, the molten material flows out of the second discharge channel 283.

[0029] like Figure 3 , Figure 5-Figure 6As shown, the detection assembly 284 includes a detection seat 2841 and a transmission shaft 2842. The detection seat 2841 is provided with an arc groove 2845 and a movable groove 2847. The movable groove 2847 is provided with a movable plate 2846. The arc groove 2845 is provided with a second positioning block 2848. One end of the transmission shaft 2842 is connected to the third gear, and the other end of the transmission shaft 2842 is connected to the movable plate 2846. The movable plate 2846 is connected to the second positioning block 2848 through an arc spring rod. The movable plate 2846 is close to the arc spring rod. A second piezoelectric piece is provided at one end of the spring rod. When the protective assembly in the present invention is working, the rotating motor will drive the protective disk 285 and the transmission shaft 2842 to rotate synchronously. When the transmission shaft 2842 rotates, it will drive the movable plate 2846, the arc-shaped spring rod and the second positioning block 2848 to rotate. At this time, the spring on the arc-shaped spring rod is compressed and deformed, and the amplitude of the spring deformation is detected by the electrical signal generated by the second piezoelectric piece, and it is judged in turn whether the rotation angle of the protective disk 285 meets the standard, so as to avoid accidents when the staff disassembles the forming seat 29 later.

[0030] like Figure 3 , Figure 5-Figure 6 As shown, the end of the second positioning block 2848 away from the arc spring rod is an arc-shaped structure, a positioning groove is provided on the side of the arc groove 2845 away from the movable groove 2847, a first positioning block 2844 is provided at one end of the positioning groove close to the arc groove 2845, a second electromagnet 2843 is provided at one end of the positioning groove away from the arc groove 2845, the first positioning block 2844 is connected to the positioning groove through a reset spring rod, the end of the first positioning block 2844 close to the second electromagnet 2843 is magnetic, the end of the first positioning block 2844 away from the second electromagnet 2843 extends into the arc groove 2845 and is an arc-shaped structure, when the protective component of the present invention is working, the second electromagnet 2843 does not work, and when the rotating motor drives the protective disk 285 and the transmission shaft 2842 to rotate, the second positioning block 2848 will rotate in the arc groove 2845. When the protective disk 285 rotates to the target angle, the second positioning block 2848 will eventually pass over the first positioning block 2844. The first positioning block 2844 will hinder the rotation of the second positioning block 2848 to avoid accidental power outages and other situations. The protective disk 285 will rotate unexpectedly, so that the first discharge channel 281 and the second discharge channel 283 are reconnected. Finally, after the replacement and maintenance of the forming seat 29 of the present invention, the staff can turn on the second electromagnet 2843 to generate a magnetic field that attracts the first positioning block 2844, so that the first positioning block 2844 shrinks into the positioning groove, thereby facilitating the through hole 2851 on the protective disk 285 to be aligned with the second discharge channel 283 again.

[0031] like Figure 3 , Figure 7-Figure 8As shown, a cooling channel 292 is provided on the outside of the molding channel 293, and an outer groove 2911 and an inner groove 2912 are provided inside the molding rod 291. The end of the outer groove 2911 away from the protective seat 28 is connected to the end of the inner groove 2912 away from the protective seat 28. The end of the protective seat 28 close to the molding rod 291 is provided with a first through groove 287 and a second through groove 288. The first through groove 287 is connected to the outer groove 2911, and the second through groove 288 is connected to the inner groove 2912. When the present invention is working, the liquid outlet end of the external cooling system is connected to the inlet end of the cooling channel 292 and the second through groove 288, and the liquid inlet end of the external cooling system is connected to the outlet end of the cooling channel 292 and the first through groove 287. At this time, the coolant will flow between the cooling channel 292, the outer groove 2911 and the inner groove 2912. Through the above technical solution, it is ensured that the outer wall and the inner wall of the high-pressure pipe are cooled evenly to avoid affecting the quality of the high-pressure pipe.

[0032] like Figure 2 , Figure 9-10 As shown, a discharge trough is provided at the lower end of the feed seat 23, a feeding cavity is provided between the discharge trough and the feed channel 231, a sealing plate 232 is provided at one end of the discharge trough close to the feeding cavity, the sealing plate 232 is connected to the discharge trough through a sealing spring rod, a first electromagnet 233 is provided at one end of the discharge trough away from the feeding cavity, a plurality of groups of latches are provided at one end of the sealing plate 232 away from the first electromagnet 233, the end of the sealing plate 232 close to the first electromagnet 233 is magnetic, a plurality of groups of discharge holes are provided at one end of the feeding cavity close to the discharge trough, and the latches cooperate with the discharge holes. When the present invention is working normally, the latches are inserted into the discharge holes. When the device fails, the sealing plate 232 is driven away from the feeding cavity by the first electromagnet 233. At this time, the staff only needs to set a group of suction fans on the outside of the discharge trough to suck out the material in the feeding cavity, thereby avoiding the problem of needing to disassemble the feed seat 23 to take out the material in the feeding cavity.

[0033] like Figure 2 , Figure 9-10 As shown, a sieve plate 25 is arranged in the feed channel 231, and a linkage frame 251 and a telescopic slot 252 are arranged at the side end of the feed channel 231. One end of the linkage frame 251 is arranged in the telescopic slot 252, and the other end of the linkage frame 251 is fixedly connected to the sieve plate 25 and is wound with a vibration spring. The transmission component 24 is connected to the telescopic slot 252. When the present invention loads materials, the materials will first pass through the sieve plate 25 and then enter the feed cavity. The unqualified large-volume materials will be screened out by the sieve plate 25 to avoid the subsequent screw 27 from getting stuck. The transmission component 24 drives the screw 27 to rotate while making the linkage frame 251 and the sieve plate 25 vibrate up and down, thereby avoiding the problem of material accumulation on the sieve plate 25.

[0034] like Figure 2 , Figure 9-10As shown, the transmission assembly 24 includes a transmission seat 241, a cam 242, a transmission groove 243 and a transmission plate 244. One end of the transmission seat 241 is connected to the screw 27, and the other end of the transmission seat 241 is connected to the working end of the driving mechanism 21. The cam 242 is arranged on the outer side of the transmission seat 241, and the transmission groove 243 is arranged on the side end of the feed channel 231. The transmission plate 244 is movably installed in the transmission groove 243 through a lifting spring rod, and the transmission groove 243 is connected to the telescopic groove 252 through a guide groove. In the present invention, compressed gas is arranged in the transmission groove 243. When the driving mechanism 21 drives the screw 27 to rotate, the cam 242 will synchronously drive the transmission plate 244 to perform a lifting movement in the transmission groove 243. At this time, the compressed gas in the transmission groove 243 will intermittently enter the telescopic groove 252, so that the linkage frame 251 and the screen plate 25 vibrate. Through the above technical scheme, the frequency of staff cleaning the screen plate 25 is reduced.

[0035] The working principle of the present invention is as follows: before working, the material is placed in the funnel 22. At this time, the material will first pass through the screen plate 25 and then enter the feeding cavity. The unqualified large-volume material will be screened out by the screen plate 25 to avoid the subsequent screw 27 from getting stuck. The screw 27 is driven to rotate by the transmission component 24, and the material is transported by the screw 27. The material in the screw barrel 26 is heated and melted by the heater on the inner wall of the screw barrel 26. When the screw 27 rotates, the linkage frame 251 and the screen plate 25 vibrate up and down, so as to avoid the accumulation of materials on the screen plate 25. When the molten material enters the protective seat 28, it will flow along the first discharge channel 281 and the second discharge channel 283 to the forming channel 293, and the high-pressure tube will be formed through the forming channel 293 and the shaping rod 291. The formed high-pressure tube will be pulled out of the extruder 2 by the pulling mechanism 4. When the high-pressure tube is pulled out, it will pass through the cooling pool 3, and the newly formed high-pressure tube will be cooled by the cooling pool 3. During the working process, if the flow resistance of the molten material suddenly increases, the protective plate 285 and the detection component 2 will be driven by the rotating motor. 84 works, the first discharge channel 281 and the second discharge channel 283 are separated by the protective plate 285, so that the staff can replace or repair the forming seat 29 without stopping the machine. The rotation angle of the protective plate 285 is monitored in real time by the detection component 284 to prevent the through hole 2851 from being completely misaligned with the second discharge channel 283 due to the controller or current voltage of the rotating motor, so that when the staff replaces or repairs the forming seat 29, the molten material flows out of the second discharge channel 283. The present invention is also provided with The sealing plate 232 and the first electromagnet 233, the sealing plate 232 is provided with a plurality of groups of pins at one end away from the first electromagnet 233, and the feed cavity is provided with a plurality of groups of discharge holes at one end close to the discharge trough. During normal operation, the pins are inserted into the discharge holes. When the device fails, the sealing plate 232 is driven away from the feed cavity by the first electromagnet 233. At this time, the staff only needs to set a group of suction fans outside the discharge trough to suck out the materials in the feed cavity, thereby avoiding the problem of needing to disassemble the feed seat 23 to take out the materials in the feed cavity.

[0036] Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A drawing device for high-pressure pipe processing, characterized in that: The drawing device comprises a machine base (1), an extrusion device (2), a cooling pool (3) and a pulling mechanism (4); the extrusion device (2) is arranged above the machine base (1); the extrusion device (2) comprises a driving mechanism (21); a feeding seat (23), a screw barrel (26), a protective seat (28) and a forming seat (29) are arranged in sequence at the working end of the driving mechanism (21); a feeding channel (231) is arranged at the upper end of the feeding seat (23); a funnel (22) is arranged above the feeding seat (23); a transmission assembly (24) is arranged at one end of the feeding seat (23) close to the driving mechanism (21); a first screw barrel (26) is arranged in the protective seat (28); a second screw barrel (26) is arranged in the protective seat (28 ... a discharge channel (281) and a second discharge channel (283), a protective component being arranged between the first discharge channel (281) and the second discharge channel (283), a screw rod (27) being arranged in the screw barrel (26), the screw rod (27) being connected to the driving mechanism (21) via a transmission component (24), a forming channel (293) being arranged in the forming seat (29), a shaping rod (291) being arranged in the forming channel (293), the cooling pool (3) and the pulling mechanism (4) being arranged in sequence on a side of the forming seat (29) away from the screw barrel (26), and the formed high-pressure pipe being pulled out of the extrusion device (2) via the pulling mechanism (4); The protection component comprises a rotating motor, a gear component (282), a protection plate (285), a sensing block (286) and a detection component (284); the protection plate (285) is arranged between the first discharge channel (281) and the second discharge channel (283); a through hole (2851) is arranged on the protection plate (285); a sensing slot is arranged on a side of the first discharge channel (281) close to the forming seat (29); one end of the sensing block (286) is arranged in the sensing slot; the other end of the sensing block (286) passes through the protection plate (285) and is arranged in the first discharge channel (281); a first piezoelectric sheet and a compression spring are arranged in the sensing slot; the rotating motor and the detection component (284) are arranged on opposite sides of the first discharge channel (281); the rotating motor drives the protection plate (285) and the detection component (284) to work through the gear component (282); The detection assembly (284) comprises a detection seat (2841) and a transmission shaft (2842); an arc-shaped groove (2845) and a movable groove (2847) are arranged in the detection seat (2841); a movable plate (2846) is arranged in the movable groove (2847); a second positioning block (2848) is arranged in the arc-shaped groove (2845); one end of the transmission shaft (2842) is connected to the gear assembly (282); the other end of the transmission shaft (2842) is connected to the movable plate (2846); the movable plate (2846) is connected to the second positioning block (2848) via an arc-shaped spring rod; and a second piezoelectric sheet is arranged at one end of the movable plate (2846) close to the arc-shaped spring rod; A positioning groove is provided on one side of the arc-shaped groove (2845) away from the movable groove (2847); a first positioning block (2844) is provided on one end of the positioning groove close to the arc-shaped groove (2845); a second electromagnet (2843) is provided on one end of the positioning groove away from the arc-shaped groove (2845); the first positioning block (2844) is connected to the positioning groove via a return spring rod; an end of the first positioning block (2844) close to the second electromagnet (2843) is magnetic; and an end of the first positioning block (2844) away from the second electromagnet (2843) extends into the arc-shaped groove (2845); A cooling channel (292) is arranged on the outside of the molding channel (293); an outer groove (2911) and an inner groove (2912) are arranged inside the molding rod (291); an end of the outer groove (2911) away from the protective seat (28) is connected to an end of the inner groove (2912) away from the protective seat (28); an end of the protective seat (28) close to the molding rod (291) is provided with a first through groove (287) and a second through groove (288); the first through groove (287) is connected to the outer groove (2911), and the second through groove (288) is connected to the inner groove (2912).

2. A drawing device for high pressure pipe processing according to claim 1, characterized in that: A discharge groove is provided at the lower end of the feed seat (23), a feeding cavity is provided between the discharge groove and the feed channel (231), a sealing plate (232) is provided at one end of the discharge groove close to the feeding cavity, the sealing plate (232) is connected to the discharge groove via a sealing spring rod, a first electromagnet (233) is provided at one end of the discharge groove away from the feeding cavity, a plurality of groups of latches are provided at one end of the sealing plate (232) away from the first electromagnet (233), the end of the sealing plate (232) close to the first electromagnet (233) is magnetic, and a plurality of groups of discharge holes are provided at one end of the feeding cavity close to the discharge groove, the latches cooperate with the discharge holes.

3. A drawing device for high pressure pipe processing according to claim 1, characterized in that: A sieve plate (25) is arranged in the feed channel (231), and a linkage frame (251) and a telescopic slot (252) are arranged at a side end of the feed channel (231), one end of the linkage frame (251) is arranged in the telescopic slot (252), the other end of the linkage frame (251) is fixedly connected to the sieve plate (25) and is wound with a vibration spring, and the transmission assembly (24) is connected to the telescopic slot (252).

4. A drawing device for high pressure pipe processing according to claim 3, characterized in that: The transmission assembly (24) comprises a transmission seat (241), a cam (242), a transmission groove (243) and a transmission plate (244); one end of the transmission seat (241) is connected to the screw rod (27); the other end of the transmission seat (241) is connected to the working end of the driving mechanism (21); the cam (242) is arranged on the outside of the transmission seat (241); the transmission groove (243) is arranged at the side end of the feeding channel (231); the transmission plate (244) is movably installed in the transmission groove (243) via a lifting spring rod; and the transmission groove (243) is connected to the telescopic groove (252) via a guide groove.

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