A papermaking rewinder hydraulic system exhaust device and use method

Abstract

The present invention relates to the technical field of hydraulic exhaust devices for rewinding machines, and discloses an exhaust device for a hydraulic system of a paper rewinding machine and a method for using the exhaust device, comprising: a hydraulic cylinder body, the side wall of which is fixedly mounted on the outer wall of a fixed bracket, a hydraulic plug rod is fittedly mounted on the inner wall of the hydraulic cylinder body, and the lower part of the hydraulic plug rod slides through the hydraulic cylinder body, and a material rack for placing a material roll of the rewinding machine is fixedly connected to the lower end surface of the hydraulic plug rod, and the side wall of the material rack is slidably embedded in the lower part of the fixed bracket; and further comprising: a collecting cylinder, which is horizontally fixed and connected to the upper port of the hydraulic cylinder body. The exhaust device for the hydraulic system of a paper rewinding machine and the method for using the exhaust device can perform exhaust operations during the lifting and lowering movement of the internal plug rod, thereby realizing exhaust in a two-way stroke to improve the exhaust efficiency, and the device also has the ability to filter oil impurities and can automatically clean the oil filter structure.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic exhaust devices for rewinders, and in particular to an exhaust device for a hydraulic system of a papermaking rewinder and a use method thereof. Background Art

[0002] The rewinder is a mechanical device used for processing paper or film products. During the use of the paper rewinder, the feeding mechanism or the cutter mechanism needs to be driven by the hydraulic cylinder system to improve production efficiency. During the operation of the hydraulic cylinder, some gas may exist inside. Since the presence of gas will have an adverse effect on the sensitivity and life of the hydraulic mechanism, it is necessary to exhaust the gas. However, there are still some problems with the existing rewinder hydraulic system exhaust device:

[0003] For example, a paper rewinder hydraulic system exhaust device with publication number CN214146120U includes a mounting seat, a connecting pipe is connected to the top of the mounting seat by a thread, a first housing is installed on the top of the connecting pipe, a fixing plate is installed inside the first housing, a fixing shaft is fixed to the fixing plate, a movable block is slidably connected to the fixed shaft, a second housing is installed on the side of the movable block, a through hole is installed on the side of the second housing, and a sealing plate is installed on the top of the first housing;

[0004] Publication number CN106438589B discloses an exhaust device for a closed hydraulic system, belonging to the technical field of hydraulic systems. The device comprises a vacuum pump, an air compressor, a second stop valve, a third stop valve, a three-way joint, a sealing cover, a swing mechanism, and an excitation mechanism. The excitation mechanism is mounted on the side of the oil tank. The open end of the sealing cover is connected to the oil bladder and sealed to form a closed cavity. The closed end of the sealing cover is connected to the swing mechanism via a ball joint. A three-way joint is mounted on the side of the sealing cover.

[0005] During the use of the above device, the hydraulic pressure can only be exhausted in a one-way stroke, the working efficiency is low, and the functionality of the exhaust device is relatively simple.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original exhaust device of the rewinder hydraulic system. Summary of the Invention

[0007] The purpose of the present invention is to provide a papermaking rewinder hydraulic system exhaust device and a method of use, so as to solve the problem that the existing rewinder hydraulic system exhaust device proposed in the above background technology can only exhaust the hydraulic force in a one-way stroke during use, the working efficiency is low, and the functionality of the exhaust device is relatively single.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an exhaust device for a hydraulic system of a papermaking rewinder and a method for using the same, comprising:

[0009] A hydraulic cylinder body, the side wall of which is fixedly mounted on the outer wall of the fixed bracket, a hydraulic plug rod is fitted on the inner wall of the hydraulic cylinder body, and the lower part of the hydraulic plug rod slides through the hydraulic cylinder body, and a material rack for placing the material roll of the rewinder is fixedly connected to the lower end surface of the hydraulic plug rod, and the side wall of the material rack is slidably embedded in the lower part of the fixed bracket;

[0010] Also includes:

[0011] The collecting cylinder is horizontally fixed and connected to the upper port of the hydraulic cylinder body, and a guide cylinder is fixedly installed in parallel on the top of the collecting cylinder, and one end of the guide cylinder is fixedly connected to the first solenoid valve tube, and the other end of the guide cylinder is fixedly connected to the second solenoid valve tube, the ends of the collecting cylinder and the guide cylinder are respectively fixedly connected to the branch pipes corresponding to the top of the pressure relief solenoid valve tube, and the pressure relief solenoid valve tube is below the first solenoid valve tube, and the discharge pipe port of the pressure relief solenoid valve tube is fixedly connected to the upper part of the side wall of the processing box, the side ports of the first solenoid valve tube and the second solenoid valve tube away from the guide cylinder are fixedly connected to the upper part of the supply pipe, and the lower port of the supply pipe is fixedly connected to the hydraulic pump, and the hydraulic pump is fixedly installed on the fixed On the outer wall of the bracket, the lower part of the hydraulic pump is fixedly connected with the upper end of the suction pipe, and the lower end port of the suction pipe is fixedly installed on the bottom of the side wall of the processing box, and the processing box is fixedly installed on the outer wall of the hydraulic cylinder body, and a collecting mechanism is coaxially installed inside the collecting cylinder, and the collecting mechanism includes an extrusion cylinder, the outer wall of the extrusion cylinder is fitted on the inner wall of the collecting cylinder, and a coaxially arranged sealing ring is rotatably embedded on the outer wall of the extrusion cylinder, and the sealing ring and the liquid inlet opened at the bottom of the extrusion cylinder coincide with each other, the communicating hole at the bottom of the collecting cylinder is between the liquid inlet of the sealing ring and the upper end port of the hydraulic cylinder body, and a convex rod is fixedly installed on the top of the sealing ring, and the axis of the convex rod and the axis of the sealing ring intersect perpendicularly;

[0012] The liquid outlet pipe, the upper part of which is located on the inner side of the processing box, the liquid outlet pipe is fixedly installed through the bottom of the processing box, and a loading block is fixedly installed on the bottom surface of the processing box, and the loading block is fixedly installed through the bottom of the side wall of the hydraulic cylinder body, and the two are arranged flush, the lower part of the liquid outlet pipe is fixedly installed with an electromagnetic control valve, and the electromagnetic control valve is fixedly installed through the side wall of the processing box, the upper part of the loading block is fixedly installed with the lower end of the liquid outlet pipe, and the lower end of the liquid outlet pipe is flush with the bottom of the inner wall of the hydraulic cylinder body, the middle part of the side wall of the liquid outlet pipe is fixedly installed with a driving mechanism, and the driving mechanism includes a shell, and the shell is fixedly connected to the outer wall of the liquid outlet pipe , and a fixed shaft is coaxially fixed and installed on the inner wall of the shell, and a coaxially arranged ring is rotatably installed on the outer wall of the fixed shaft, and the ring is coaxially arranged on the inner side of the shell, and the liquid outlet pipe is fixedly penetrated by the filter plate, and the filter plate is fixedly installed on the inner wall of the processing box, and a sealing shell is fixedly installed on the outer wall of the processing box, and a storage block is fitted on the inner wall of the sealing shell, and the discharge ports opened on the side walls of the sealing shell and the processing box are both located at the bottom of the inclined surface of the filter plate, and the through storage groove opened inside the storage block is located below the inclined surface of the filter plate, and a screw is rotatably installed on the top of the storage block, and the screw passes through the top of the sealing shell, and the two form a threaded connection relationship.

[0013] Preferably, the inner wall of the extrusion cylinder is slidably fitted on the outer wall of the fixed column, and the end of the fixed column away from the extrusion cylinder is fixedly installed through the end of the collecting cylinder, the end of the fixed column close to the sealing ring is fitted with a sliding plug, and the upper port of the connecting pipe is fitted on the side wall of the sliding plug body to form a sealing structure, the connecting pipe slides through the fixed column, and the lower end of the connecting pipe is fixedly installed on the top of the side wall of the processing box, so that the sliding plug can move in the fixed column.

[0014] Preferably, the plug rod of the sliding plug is fitly inserted in the mounting tube of the fixed column, and a return spring is fixedly connected between the end face of the plug rod and the inner wall of the mounting tube of the fixed column. The sliding plug is located directly below the protruding rod, and the protruding rod is fitly installed in a guide groove opened on the inner wall of the collecting tube, so that the sliding plug can move in the guide groove.

[0015] Preferably, a thrust plate is slidably mounted on the inner wall of the collecting tube, and the thrust plate has an arc-shaped structure, and a through inclined guide groove is provided on the side wall of the thrust plate, and the protruding rod is fitted in the guide groove of the thrust plate. The guide groove provided on the collecting tube is horizontally "L"-shaped, so that the thrust plate can drive the protruding rod to move.

[0016] Preferably, a force-bearing plug rod is fitted and inserted on the inner wall of one side of the guide cylinder close to the first solenoid valve tube, and the force-bearing plug rod is fixedly connected to the thrust plate below through a protrusion set in the middle, and the protrusion of the force-bearing plug rod is slidably installed on the top of the collecting cylinder, and an oil flow channel is opened at the end of the collecting cylinder, and one end of the oil flow channel of the collecting cylinder is set toward the extrusion cylinder, and the other end of the oil flow channel is toward the through hole opened at the bottom of the guide cylinder, and a force-bearing plug rod that plays a sealing role is set above the through hole of the guide cylinder, so that the force-bearing plug rod can drive the thrust plate to move.

[0017] The cam is secured to the top of the air duct and is adapted to engage the exhaust gas of the air filter press, and the cam is secured to the top of the air duct and is adapted to engage the exhaust gas of the air filter press, the cam being secured to the top of the air filter press, and the cam being adapted to engage the exhaust gas of the air filter press, the cam being adapted to engage the exhaust gas of the air filter press, and the cam being adapted to engage the exhaust gas of the air filter press,

[0018] Preferably, the side wall of the guide cylinder is fixedly connected to the upper port of the liquid inlet pipe, and the upper port of the liquid inlet pipe is located on the side of the force-bearing plug rod close to the second solenoid valve tube, the lower port of the liquid inlet pipe is fixedly connected to the loading block, and a flush one-way plug is fitted and embedded on the top of the loading block, and the top of the one-way plug is arranged toward the interior of the hydraulic cylinder body, the bottom of the one-way plug is located above the lower port of the liquid inlet pipe, a connecting frame is provided below the one-way plug, and the connecting frame is fitted and installed on the inner side of the loading block, and a tension spring is fixedly connected between the bottom of the connecting frame and the bottom surface of the inner wall of the loading block, and the top rod on one side of the top of the connecting frame is fixedly connected to the bottom surface of the one-way plug, so that the one-way plug can drive the connecting frame to move.

[0019] Preferably, force-bearing plates with equal angle distribution are installed slidingly through the side wall of the collar, corresponding force-bearing plates are installed in a rotatable manner in the liquid outlet pipe and the outer shell, and corresponding limit blocks are embedded in the slide grooves on both sides of the force-bearing plates, and the limit blocks are fixedly installed on the outer wall of the collar, and inner convex blocks are fixedly installed on the inner wall of the outer shell, and the side of the inner convex blocks is provided with the end of the corresponding force-bearing plate, and the side of the inner convex blocks close to the force-bearing plate is in an arc-shaped structure, so that the force-bearing plate can drive the collar to rotate.

[0020] Preferably, the inner convex block is arranged toward the upper part of the moving block, the moving block is slidably installed on the fixed shaft, and the arc outer wall of the moving block is fitted on the inner wall of the collar, the convex blocks at both ends of the moving block are respectively fixedly connected with sliders of corresponding moving rods, and the convex blocks of the moving block are slidably installed on the fixed shaft, the slider of the moving rod is fitted on the inner side of the guide box, and a control spring is fixedly connected between the bottom surface of the slider of the moving rod and the inner wall of the guide box, the rod body of the moving rod slides through the guide box, and the end of the rod body of the moving rod is fixedly connected to the cleaning frame, and the cleaning frame is fitted on the inclined surface of the filter plate, so that the moving rod can move in the guide box.

[0021] The exhaust device is used as follows:

[0022] S1: During the use of the existing paper rewinding machine, the material roller needs to be loaded and unloaded. The hydraulic cylinder and the hydraulic piston rod together constitute the hydraulic power structure of the device, which is used to drive the material rack to move and perform auxiliary loading and unloading operations. The placement groove on the material rack is used to place the end of the material roller. Hydraulic oil is stored in the processing box. The lower port of the second one-way valve pipe is above the oil level in the processing box. The user starts the hydraulic pump, and the hydraulic pump will send the hydraulic oil in the processing box into the supply pipe through the suction pipe. The device controls the first solenoid valve pipe to open and the second solenoid valve pipe to close, the electromagnetic control valve to open, and the pressure relief solenoid valve pipe to close. At this time, the hydraulic oil will flow into the guide cylinder through the first solenoid valve pipe. At this time, the oil in the guide cylinder will push the force-bearing piston rod to move. At this time, the force-bearing piston rod will drive the thrust plate to move. At this time, the inclined groove on the thrust plate will drive the cam to rotate. The cam will drive the sealing ring to rotate synchronously, so that the sealing ring can seal the lower part of the extrusion cylinder, and the bubbles in the hydraulic cylinder will gather in the extrusion cylinder;

[0023] S2: Then the oil in the guide cylinder will flow into the collecting cylinder, and the high-pressure oil will be used to push the extrusion cylinder to move in the collecting cylinder. At this time, the oil inside the extrusion cylinder will push open the one-way valve body formed by the sliding plug, so that the oil will flow into the processing box through the connecting pipe for subsequent exhaust operation. In this process, the transmission rod connected to the top of the force plug rod will drive the vacuum plug to move synchronously in the air pressure cylinder. When the end of the extrusion cylinder no longer blocks the lower port of the hydraulic cylinder body, the oil in the collecting cylinder will flow into the hydraulic cylinder body, thereby pushing the hydraulic plug rod to move. The hydraulic plug rod squeezes out the oil at the bottom of the hydraulic cylinder body. At this time, the oil at the bottom of the hydraulic cylinder body will flow into the outlet pipe, and the flowing oil is used to apply thrust to the force plate, so that the force plate can drive the collar to rotate on the fixed shaft. When the force plate is pressed against the inner bulge, the force plate will slide to the inside of the collar. At this time, the force plate will push the moving block to move The moving block will move in the fixed shaft, so that the moving block can drive the moving rods at both ends to move synchronously in the guide box, thereby compressing the control spring. When the force-bearing plate passes the inner convex block, the control spring will push the moving rod to move synchronously through the reset action, and the moving rod drives the moving block to return to its original position synchronously, and the force-bearing plate moves synchronously. In this process, the reciprocating inclined moving rod will drive the cleaning rack to move, so that the cleaning rack can clean the oil impurities filtered by the filter plate. Due to the inclined setting of the filter plate, the oil impurities will be collected into the storage block at this time. Subsequent maintenance can be carried out by rotating the screw so that the screw drives the storage groove of the storage block to move out of the sealed shell to discharge the impurities. At the same time, the impact of the cleaning rack and the force-bearing plate will drive the oil in the processing box to vibrate, thereby accelerating the discharge of gas contained in the oil, and the upper port of the liquid outlet pipe is located above the liquid level of the processing box.

[0024] S3: The device then controls the first solenoid valve tube to close, while the second solenoid valve tube is opened, the electromagnetic control valve is closed, and the pressure relief solenoid valve tube is opened at the same time. At this time, the hydraulic pump will send oil into the second solenoid valve tube through the supply pipe. The oil flows into the guide cylinder through the second solenoid valve tube, thereby pushing the stressed plug rod to reset and move. The stressed plug rod will drive the thrust plate to move. At this time, the thrust plate will drive the convex rod to reset along the "L"-shaped guide groove. The convex rod will drive the bottom extrusion cylinder to move and reset synchronously. The convex rod will then drive the sealing ring to reset and rotate under the action of the thrust plate inclined groove, so that the sealing ring no longer blocks the lower port of the extrusion cylinder. The oil in the guide cylinder and the collecting cylinder will be discharged into the processing box through the pressure relief solenoid valve tube;

[0025] S4: During the reset movement of the stressed plug rod, the stressed plug rod will drive the transmission rod installed on the top to move synchronously, so that the transmission rod can drive the vacuum plug to move in the air cylinder through the spring. At this time, the gas discharged in the processing box will be sucked into the air cylinder through the second one-way valve tube, so that it can be discharged through the first one-way valve tube in the next cycle. When the stressed plug rod passes through the upper port of the liquid inlet pipe, the oil in the guide cylinder will flow into the liquid cavity at the bottom of the loading block through the liquid inlet pipe. At this time, the oil will push the one-way plug to move upward. At this time, the one-way plug will extend from the top of the loading block. At the same time, the one-way plug drives the connecting frame to stretch the tension spring. At this time, the oil in the loading block will enter the hydraulic cylinder body. At this time, the oil will push the hydraulic plug rod to move upward. From the above method, it can be seen that the oil in the upper part of the hydraulic cylinder body will flow into the processing box through the extrusion cylinder and the connecting pipe.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the exhaust device and the method of use of the hydraulic system of the paper rewinder can perform exhaust operations during the lifting and lowering movement of the internal plug rod, thereby realizing exhaust in both directions to improve exhaust efficiency. The device also has the ability to filter oil impurities and can automatically clean the oil filter structure. The specific contents are as follows:

[0027] 1. The outer wall of the extrusion cylinder is fitted on the inner wall of the collecting cylinder. A coaxially arranged sealing ring is rotatably embedded on the outer wall of the extrusion cylinder. The sealing ring and the liquid inlet opened at the bottom of the extrusion cylinder coincide with each other. The communicating hole at the bottom of the collecting cylinder is between the liquid inlet of the sealing ring and the upper port of the hydraulic cylinder body. A convex rod is fixedly installed on the top of the sealing ring. The axis of the convex rod and the axis of the sealing ring intersect perpendicularly. The convex rod is inserted into the inclined groove of the thrust plate, so that the moving thrust plate can drive the convex rod to rotate. The convex rod will drive the sealing ring to rotate synchronously, thereby blocking the liquid inlet at the bottom of the extrusion cylinder, so that the moving extrusion cylinder can pressurize the oil into the subsequent exhaust device;

[0028] 2. The lower end of the liquid outlet pipe is fixedly installed on the upper part of the loading block, and the lower end of the liquid outlet pipe is flush with the bottom of the inner wall of the hydraulic cylinder body. A driving mechanism is fixedly installed in the middle of the side wall of the liquid outlet pipe, and the driving mechanism includes a shell, which is fixedly connected to the outer wall of the liquid outlet pipe. A fixed shaft is coaxially fixed and installed on the inner wall of the shell, and a coaxially arranged collar is rotatably installed on the outer wall of the fixed shaft. The collar is coaxially arranged on the inner side of the shell, and the liquid outlet pipe is fixedly installed through the filter plate. The filter plate is fixedly installed on the inner wall of the processing box, so that the oil at the bottom of the hydraulic cylinder body can flow into the processing box through the liquid outlet pipe, and the filter plate can filter impurities in the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the supply pipe installation structure of the present invention;

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

[0032] Figure 4 This is a schematic structural diagram of the guide cylinder of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the air extraction plug of the present invention;

[0034] Figure 6 This is a schematic diagram of the fixing column installation structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the installation structure of the force-bearing plug rod of the present invention;

[0036] Figure 8 This is a schematic diagram of the sealing ring installation structure of the present invention;

[0037] Figure 9 This is a schematic diagram of the convex rod installation structure of the present invention;

[0038] Figure 10 This is a schematic diagram of the thrust plate installation structure of the present invention;

[0039] Figure 11 This is a schematic diagram of the one-way plug installation structure of the present invention;

[0040] Figure 12 This is a schematic diagram of the installation structure of the liquid inlet pipe of the present invention;

[0041] Figure 13 This is a schematic diagram of the filter plate installation structure of the present invention;

[0042] Figure 14 This is a schematic diagram of the installation structure of the load-bearing plate of the present invention;

[0043] Figure 15 This is a schematic diagram of the fixed shaft installation structure of the present invention;

[0044] Figure 16 This is a schematic diagram of the installation structure of the moving block of the present invention;

[0045] Figure 17 This is a schematic diagram of the inner bump installation structure of the present invention.

[0046] In the figure: 1. Hydraulic cylinder; 2. Fixed bracket; 3. Hydraulic plug rod; 4. Material rack; 5. Collecting cylinder; 6. Guide cylinder; 7. First solenoid valve tube; 8. Supply pipe; 9. Second solenoid valve tube; 10. Hydraulic pump; 11. Suction pipe; 12. Processing box; 13. Collecting mechanism; 1301. Extrusion cylinder; 1302. Sealing ring; 1303. Protruding rod; 1304. Fixed column; 1305. Sliding plug; 1306. Return spring; 1307. Connecting pipe; 14. Guide groove; 15. Thrust plate; 16. Forced plug rod; 17. Transmission rod; 18. Air pressure cylinder; 19. Suction plug; 20. First one-way valve tube; 21. Second one-way valve tube; 22. Liquid inlet pipe; 23. One-way plug; 24. Connecting frame; 25. Tension spring; 26. Solenoid control valve; 27. Liquid outlet pipe; 28. Driving mechanism; 2801. Outer shell; 2802. Inner convex block; 2803. Fixed shaft; 2804. Collar; 2805. Force plate; 2806. Limit block; 2807. Moving block; 29. ​​Guide box; 30. Moving rod; 31. Control spring; 32. Cleaning frame; 33. Filter plate; 34. Storage block; 35. Sealing shell; 36. Screw; 37. Loading block; 38. Pressure relief solenoid valve tube. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] See also Figures 1-17 The present invention provides a technical solution: an exhaust device for a hydraulic system of a papermaking rewinder and a method of using the same, comprising:

[0049] The hydraulic cylinder body 1 has its side walls fixedly mounted on the outer wall of the fixed bracket 2. A hydraulic plug rod 3 is fitted on the inner wall of the hydraulic cylinder body 1, and the lower part of the hydraulic plug rod 3 slides through the hydraulic cylinder body 1. The lower end surface of the hydraulic plug rod 3 is fixedly connected to a material rack 4 for placing the material roll of the rewinder. The side walls of the material rack 4 are slidably embedded in the lower part of the fixed bracket 2.

[0050] Also includes:

[0051] The collecting cylinder 5 is fixedly connected to the upper port of the hydraulic cylinder body 1 horizontally, and a guide cylinder 6 is fixedly installed parallel to the top of the collecting cylinder 5, and one end of the guide cylinder 6 is fixedly connected to the first solenoid valve tube 7, and the other end of the guide cylinder 6 is fixedly connected to the second solenoid valve tube 9. The ends of the collecting cylinder 5 and the guide cylinder 6 are respectively fixedly connected to the branch pipes corresponding to the top of the pressure relief solenoid valve tube 38, and the pressure relief solenoid valve tube 38 is below the first solenoid valve tube 7, and the discharge pipe port of the pressure relief solenoid valve tube 38 is fixedly connected to the upper part of the side wall of the processing box 12. The side ports of the first solenoid valve tube 7 and the second solenoid valve tube 9 away from the guide cylinder 6 are fixedly connected to the upper part of the supply pipe 8, and the lower port of the supply pipe 8 is fixedly connected to the hydraulic pump 10, and the hydraulic pump 10 is fixedly installed on the outer wall of the fixed bracket 2. The lower part is fixedly connected to the upper end of the suction pipe 11, and the lower end of the suction pipe 11 is fixedly installed on the bottom of the side wall of the processing box 12. The processing box 12 is fixedly installed on the outer wall of the hydraulic cylinder body 1. The collecting mechanism 13 is coaxially installed inside the collecting cylinder 5. The collecting mechanism 13 includes an extrusion cylinder 1301. The outer wall of the extrusion cylinder 1301 is fitted on the inner wall of the collecting cylinder 5. A coaxially arranged sealing ring 1302 is rotatably embedded on the outer wall of the extrusion cylinder 1301, and the sealing ring 1302 and the liquid inlet opened at the bottom of the extrusion cylinder 1301 coincide with each other. The communicating hole at the bottom of the collecting cylinder 5 is between the liquid inlet of the sealing ring 1302 and the upper end of the hydraulic cylinder body 1. A convex rod 1303 is fixedly installed on the top of the sealing ring 1302, and the axis of the convex rod 1303 and the axis of the sealing ring 1302 intersect vertically.

[0052] The liquid outlet pipe 27, the upper part of which is on the inner side of the processing box 12, the liquid outlet pipe 27 is fixedly installed through the bottom of the processing box 12, and a loading block 37 is fixedly installed on the bottom surface of the processing box 12, and the loading block 37 is fixedly installed through the bottom of the side wall of the hydraulic cylinder body 1, and the two are arranged flush, the lower part of the liquid outlet pipe 27 is fixedly installed with an electromagnetic control valve 26, and the electromagnetic control valve 26 is fixedly installed through the side wall of the processing box 12, the upper part of the loading block 37 is fixedly installed with the lower end of the liquid outlet pipe 27, and the lower end of the liquid outlet pipe 27 is flush with the bottom of the inner wall of the hydraulic cylinder body 1, and the driving mechanism 28 is fixedly installed in the middle of the side wall of the liquid outlet pipe 27, and the driving mechanism 28 includes a shell 2801, the shell 2801 is fixedly connected to the outer wall of the liquid outlet pipe 27, and the inner wall of the shell 2801 A fixed shaft 2803 is coaxially fixedly installed, and a coaxially arranged ring 2804 is rotatably installed on the outer wall of the fixed shaft 2803. The ring 2804 is coaxially arranged on the inner side of the outer shell 2801. The liquid outlet pipe 27 is fixedly installed through the filter plate 33, and the filter plate 33 is fixedly installed on the inner wall of the processing box 12. A sealing shell 35 is fixedly installed on the outer wall of the processing box 12, and a storage block 34 is fitted on the inner wall of the sealing shell 35. The discharge ports opened on the sealing shell 35 and the side wall of the processing box 12 are both located at the bottom of the inclined surface of the filter plate 33. The through storage groove opened inside the storage block 34 is located below the inclined surface of the filter plate 33. A screw 36 is rotatably installed on the top of the storage block 34, and the screw 36 passes through the top of the sealing shell 35, and the two form a threaded connection relationship.

[0053] A force-bearing plug rod 16 is fitted and inserted on the inner wall of the guide cylinder 6 near the first solenoid valve tube 7, and the force-bearing plug rod 16 is fixedly connected to the thrust plate 15 below through a convex block provided in the middle, and the convex block of the force-bearing plug rod 16 is slidably installed on the top of the collecting cylinder 5, and an oil flow channel is provided at the end of the collecting cylinder 5, and one end of the oil flow channel of the collecting cylinder 5 is arranged toward the extrusion cylinder 1301, and the other end of the oil flow channel is toward the through hole provided at the bottom of the guide cylinder 6, and a force-bearing plug rod 16 that plays a blocking role is provided above the through hole of the guide cylinder 6, so that the force-bearing plug rod 16 will drive the bottom thrust plate 15 to move through the convex block, and a transmission rod 17 is provided in parallel directly above the force-bearing plug rod 16, and the lower end of the transmission rod 17 is fixedly connected to the middle of the force-bearing plug rod 16, and the transmission rod 17 is fixedly connected to the middle of the force-bearing plug rod 16. The rod 17 is slidably mounted on the inner walls of the guide cylinder 6 and the air pressure cylinder 18. The air pressure cylinder 18 is fixedly connected to the top of the guide cylinder 6, and an exhaust plug 19 is fitted on the inner wall of the air cavity of the air pressure cylinder 18, and the end face of the exhaust plug 19 is elastically connected to the end face of the transmission rod 17 by a spring. One end of the air pressure cylinder 18 away from the exhaust plug 19 is fixedly connected to a first one-way valve pipe 20 for exhausting gas, and a second one-way valve pipe 21 is provided below the first one-way valve pipe 20, and one end of the second one-way valve pipe 21 is fixedly connected to the air pressure cylinder 18, and the other end of the second one-way valve pipe 21 is fixedly installed on the upper side wall of the processing box 12, and the lower end of the second one-way valve pipe 21 faces the top of the inner wall of the processing box 12. The moving force plug rod 16 will The exhaust plug 19 is driven to move synchronously by the transmission rod 17. At this time, the exhaust plug 19 moves in the air pressure cylinder 18. The plug rod of the sliding plug 1305 is inserted into the mounting cylinder of the fixed column 1304, and a return spring 1306 is fixedly connected between the end face of the plug rod and the inner wall of the mounting cylinder of the fixed column 1304. The sliding plug 1305 is located directly below the protruding rod 1303, and the protruding rod 1303 is fitted in the guide groove 14 opened on the inner wall of the collecting cylinder 5. A thrust plate 15 is slidably fitted on the inner wall of the collecting cylinder 5, and the thrust plate 15 has an arc-shaped structure, and a through inclined guide groove is opened on the side wall of the thrust plate 15, and the protruding rod 1303 is fitted in the guide groove of the thrust plate 15. The guide groove 14 opened on the collecting cylinder 5 is horizontally "L"-shaped. The moving thrust plate 15 drives the protruding rod 1303 to move along the guide groove 14, and the protruding rod 1303 drives the sealing ring 1302 to rotate to block the bottom port of the extrusion cylinder 1301, and the inner wall of the extrusion cylinder 1301 is slidably fitted on the outer wall of the fixed column 1304, and the end of the fixed column 1304 away from the extrusion cylinder 1301 is fixedly installed at the end of the collecting cylinder 5, and the end of the fixed column 1304 close to the sealing ring 1302 is fitted with a sliding plug 1305, and the upper port of the connecting pipe 1307 is fitted on the side wall of the sliding plug 1305 to form a sealing structure, and the connecting pipe 1307 slides through the fixed column 1304, and the lower end of the connecting pipe 1307 is fixedly installed on the top of the side wall of the processing box 12.The moving extrusion cylinder 1301 will press the oil inside into the connecting pipe 1307 and discharge it into the processing box 12.

[0054] The side wall of the guide cylinder 6 is fixedly connected with the upper port of the liquid inlet pipe 22, and the upper port of the liquid inlet pipe 22 is located on the side of the force-bearing plug rod 16 close to the second solenoid valve pipe 9. The lower port of the liquid inlet pipe 22 is fixedly connected to the loading block 37, and the top of the loading block 37 is fitted with a flush one-way plug 23, and the top of the one-way plug 23 is set toward the inside of the hydraulic cylinder body 1. The bottom of the one-way plug 23 is located above the lower port of the liquid inlet pipe 22. A connecting frame 24 is provided below the one-way plug 23, and the connecting frame 24 is fitted on the inner side of the loading block 37, and a tension spring 25 is fixedly connected between the bottom of the connecting frame 24 and the bottom surface of the inner wall of the loading block 37, and the top rod on one side of the top of the connecting frame 24 is fixedly connected to the bottom surface of the one-way plug 23, so that the oil discharged from the second solenoid valve tube 9 can enter the guide cylinder 6, thereby pushing the stressed plug rod 16 to move, so that the stressed plug rod 16 no longer blocks the liquid inlet pipe 22, and at this time the oil in the guide cylinder 6 will flow into the loading block 37 through the liquid inlet pipe 22.

[0055] The side wall of the collar 2804 is slidably penetrated by force plates 2805 with equal angle distribution, the liquid outlet pipe 27 and the shell 2801 are rotatably fitted with corresponding force plates 2805, and the slide grooves on both sides of the force plates 2805 are fitted with corresponding limit blocks 2806, and the limit blocks 2806 are fixedly installed on the outer wall of the collar 2804, and the inner wall of the shell 2801 is fixedly installed with inner protrusions 2802, and the side of the inner protrusions 2802 is provided with the end of the corresponding force plate 2805, and the side of the inner protrusions 2802 close to the force plate 2805 is in an arc-shaped structure, the oil flowing in the liquid outlet pipe 27 will push the force plate 2805 to rotate, and the inner protrusions 2802 are arranged toward the upper part of the moving block 2807, and the moving block 2807 is slidably penetrated and installed on the fixed shaft 2803, and The arc-shaped outer wall of the moving block 2807 is fitted on the inner wall of the collar 2804, and the sliders of the corresponding moving rods 30 are fixedly connected at the protrusions at both ends of the moving block 2807, and the protrusions of the moving block 2807 are slidably installed on the fixed shaft 2803, and the slider of the moving rod 30 is fitted on the inner side of the guide box 29, and a control spring 31 is fixedly connected between the bottom surface of the slider of the moving rod 30 and the inner wall of the guide box 29, the rod body of the moving rod 30 slides through the guide box 29, and the end of the rod body of the moving rod 30 is fixedly connected to the cleaning rack 32, and the cleaning rack 32 is fitted on the inclined surface of the filter plate 33. When the force plate 2805 is pressed against the inner protrusion 2802, the force plate 2805 can move on the collar 2804, so that the force plate 2805 can push the moving block 2807 to move.

[0056] The exhaust device is used as follows:

[0057] S1: During the use of the existing paper rewinding machine, the material roller needs to be loaded and unloaded. The hydraulic cylinder 1 and the hydraulic plug rod 3 together constitute the hydraulic power structure of the device, which is used to drive the material rack 4 to move and perform auxiliary loading and unloading operations. The placement groove on the material rack 4 is used to place the end of the material roller. Hydraulic oil is stored in the processing box 12. The lower end of the second one-way valve pipe 21 is located above the oil level in the processing box 12. The user starts the hydraulic pump 10, and the hydraulic pump 10 will send the hydraulic oil in the processing box 12 into the supply pipe 8 through the suction pipe 11. The device controls the first solenoid valve pipe 7 to open. When the second solenoid valve tube 9 is closed, the solenoid control valve 26 is opened, and the pressure relief solenoid valve tube 38 is closed, the hydraulic oil will flow into the guide cylinder 6 through the first solenoid valve tube 7. The oil in the guide cylinder 6 will push the stressed plug rod 16 to move, and the stressed plug rod 16 will drive the thrust plate 15 to move. The inclined groove on the thrust plate 15 will drive the protruding rod 1303 to rotate, and the protruding rod 1303 will drive the sealing ring 1302 to rotate synchronously, so that the sealing ring 1302 can block the lower part of the extrusion cylinder 1301, and the bubbles in the hydraulic cylinder body 1 will gather in the extrusion cylinder 1301.

[0058] S2: Then the oil in the guide cylinder 6 will flow into the collecting cylinder 5, and the high-pressure oil will push the extrusion cylinder 1301 to move in the collecting cylinder 5. At this time, the oil in the extrusion cylinder 1301 will push open the one-way valve body formed by the sliding plug 1305, so that the oil will flow into the processing box 12 through the connecting pipe 1307 for subsequent exhaust operation. In this process, the transmission rod 17 connected to the top of the force plug rod 16 will drive the exhaust plug 19 to move synchronously in the air pressure cylinder 18. When the end of the extrusion cylinder 1301 no longer blocks the lower port of the hydraulic cylinder body 1, the collecting cylinder The oil in 5 will flow into the hydraulic cylinder body 1, thereby pushing the hydraulic plug rod 3 to move. The hydraulic plug rod 3 squeezes out the oil in the lower part of the hydraulic cylinder body 1. At this time, the oil in the lower part of the hydraulic cylinder body 1 will flow into the outlet pipe 27. The flowing oil will apply thrust to the force plate 2805, so that the force plate 2805 can drive the collar 2804 to rotate on the fixed shaft 2803. When the force plate 2805 presses against the inner protrusion 2802, the force plate 2805 will slide toward the inside of the collar 2804. At this time, the force plate 2805 will push the moving block 2 807 moves, the moving block 2807 will move in the fixed shaft 2803, so that the moving block 2807 can drive the moving rods 30 at both ends to move synchronously in the guide box 29, thereby compressing the control spring 31. When the force plate 2805 passes the inner protrusion 2802, the control spring 31 will push the moving rod 30 to move synchronously through the reset effect, and the moving rod 30 drives the moving block 2807 to return to its original position synchronously, and the force plate 2805 moves synchronously. In this process, the reciprocating tilting moving rod 30 will drive the cleaning rack 32 to move , so that the cleaning rack 32 can clean the oil impurities filtered by the filter plate 33. Due to the inclined setting of the filter plate 33, the oil impurities will be collected in the storage block 34 at this time. Subsequent maintenance can be carried out by rotating the screw 36, so that the screw 36 drives the storage groove of the storage block 34 to move out of the sealing shell 35 to discharge the impurities. At the same time, the impact of the cleaning rack 32 and the force plate 2805 will drive the oil in the processing box 12 to vibrate, thereby accelerating the discharge of gas contained in the oil. The upper end of the liquid outlet pipe 27 is located above the liquid level of the processing box 12;

[0059] S3: Afterwards, the device controls the first solenoid valve tube 7 to close, and the second solenoid valve tube 9 to open, the electromagnetic control valve 26 to close, and the pressure relief solenoid valve tube 38 to open. At this time, the hydraulic pump 10 will send oil into the second solenoid valve tube 9 through the supply pipe 8, and the oil will flow into the guide cylinder 6 through the second solenoid valve tube 9, thereby pushing the force-bearing plug rod 16 to reset and move. The force-bearing plug rod 16 will drive the thrust plate 15 to move. At this time, the thrust plate 15 will drive the protruding rod 1303 to perform a reset movement along the "L"-shaped guide groove 14, and the protruding rod 1303 will drive the bottom extrusion cylinder 1301 to move and reset synchronously. Afterwards, the protruding rod 1303 will drive the sealing ring 1302 to perform a reset rotation under the action of the inclined groove of the thrust plate 15, so that the sealing ring 1302 no longer blocks the lower port of the extrusion cylinder 1301, and the oil in the guide cylinder 6 and the collecting cylinder 5 will be discharged into the processing box 12 through the pressure relief solenoid valve tube 38;

[0060] S4: During the reset movement of the stressed plug rod 16, the stressed plug rod 16 will drive the transmission rod 17 installed on the top to move synchronously, so that the transmission rod 17 can drive the exhaust plug 19 to move in the air cylinder 18 through the spring. At this time, the gas exhausted in the processing box 12 will be sucked into the air cylinder 18 through the second one-way valve pipe 21, so that it can be discharged through the first one-way valve pipe 20 in the next cycle. When the stressed plug rod 16 passes through the upper port of the liquid inlet pipe 22, the oil in the guide cylinder 6 will be discharged through the inlet pipe 22. The liquid pipe 22 flows into the liquid cavity at the bottom of the loading block 37. At this time, the oil will push the one-way plug 23 to move upward. At this time, the one-way plug 23 will extend from the top of the loading block 37. At the same time, the one-way plug 23 drives the connecting frame 24 to stretch the tension spring 25. At this time, the oil in the loading block 37 will enter the hydraulic cylinder body 1. At this time, the oil will push the hydraulic plug rod 3 to move upward. From the above method, it can be seen that the oil in the upper part of the hydraulic cylinder body 1 will flow into the processing box 12 through the extrusion cylinder 1301 and the connecting pipe 1307.

[0061] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0063] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An exhaust device for a hydraulic system of a papermaking rewinder, comprising: A hydraulic cylinder body (1), the side wall of which is fixedly mounted on the outer wall of a fixed bracket (2), a hydraulic plug rod (3) is fitted on the inner wall of the hydraulic cylinder body (1), and the lower part of the hydraulic plug rod (3) slides through the hydraulic cylinder body (1), and a material rack (4) for placing a material roller of a rewinding machine is fixedly connected at the lower end surface of the hydraulic plug rod (3), and the side wall of the material rack (4) is slidably embedded in the lower part of the fixed bracket (2); It is characterized by further comprising: A collecting cylinder (5) is horizontally fixed and connected to the upper port of the hydraulic cylinder body (1); a guide cylinder (6) is fixedly installed on the top of the collecting cylinder (5) in parallel, and one end of the guide cylinder (6) is fixedly connected to a first electromagnetic valve tube (7), and the other end of the guide cylinder (6) is fixedly connected to a second electromagnetic valve tube (9); the ends of the collecting cylinder (5) and the guide cylinder (6) are respectively fixedly connected to branch pipes corresponding to the top of the pressure relief electromagnetic valve tube (38), and the pressure relief electromagnetic valve tube (38) is located below the first electromagnetic valve tube (7), and the discharge pipe port of the pressure relief electromagnetic valve tube (38) is fixedly connected to the upper part of the side wall of the processing box (12); the first electromagnetic valve tube (7) and the second electromagnetic valve tube (9) are both fixedly connected to the upper part of the supply pipe (8) on the side away from the guide cylinder (6); the lower end of the supply pipe (8) is fixedly connected to the hydraulic pump (10), and the hydraulic pump (10) is fixedly installed on the outer wall of the fixed bracket (2); the hydraulic pump (10) The lower part is fixedly connected to the upper end of a suction pipe (11), and the lower end of the suction pipe (11) is fixedly installed on the bottom of the side wall of a processing box (12). The processing box (12) is fixedly installed on the outer wall of the hydraulic cylinder body (1). A collecting mechanism (13) is coaxially installed inside the collecting cylinder (5). The collecting mechanism (13) includes an extrusion cylinder (1301). The outer wall of the extrusion cylinder (1301) is fitted on the inner wall of the collecting cylinder (5). A coaxially arranged sealing ring (1302) is rotatably embedded on the outer wall of the extrusion cylinder (1301), and the sealing ring (1302) and the liquid inlet opened at the bottom of the extrusion cylinder (1301) overlap, the communicating hole at the bottom of the collecting cylinder (5) is located between the liquid inlet of the sealing ring (1302) and the upper port of the hydraulic cylinder body (1), and a convex rod (1303) is fixedly installed on the top of the sealing ring (1302), and the axis of the convex rod (1303) and the axis of the sealing ring (1302) intersect vertically; The liquid outlet pipe (27) has an upper portion located inside the processing box (12), the liquid outlet pipe (27) is fixedly installed through the bottom of the processing box (12), and a loading block (37) is fixedly installed on the bottom surface of the processing box (12), and the loading block (37) is fixedly installed through the bottom of the side wall of the hydraulic cylinder body (1), and the two are arranged flush, and an electromagnetic control valve (26) is fixedly installed at the lower pipe body of the liquid outlet pipe (27), and the electromagnetic control valve (26) is fixedly installed through the bottom of the side wall of the hydraulic cylinder body (1). The liquid outlet pipe (27) is fixedly installed on the upper part of the loading block (37) and the lower end of the liquid outlet pipe (27) is installed, and the lower end of the liquid outlet pipe (27) is flush with the bottom of the inner wall of the hydraulic cylinder body (1). The driving mechanism (28) is fixedly installed in the middle of the side wall of the liquid outlet pipe (27). The driving mechanism (28) includes a shell (2801), and the shell (2801) is fixedly connected to the outer wall of the liquid outlet pipe (27). A fixed shaft (2803) is coaxially fixedly installed on the inner wall of the treatment box (12), and a coaxially arranged collar (2804) is rotatably installed on the outer wall of the fixed shaft (2803), and the collar (2804) is coaxially arranged on the inner side of the housing (2801), and the liquid outlet pipe (27) is fixedly installed through the filter plate (33), and the filter plate (33) is fixedly installed on the inner wall of the treatment box (12), and a sealing shell (304) is fixedly installed on the outer wall of the treatment box (12). 5), and a storage block (34) is fitted on the inner wall of the sealing shell (35), and the discharge ports opened on the side walls of the sealing shell (35) and the processing box (12) are both located at the bottom of the inclined surface of the filter plate (33), and the through storage groove opened inside the storage block (34) is located below the inclined surface of the filter plate (33), and a screw rod (36) is rotatably installed on the top of the storage block (34), and the screw rod (36) passes through the top of the sealing shell (35), and the two form a threaded connection relationship.

2. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 1, characterized in that: The inner wall of the extrusion cylinder (1301) is slidably fitted on the outer wall of the fixed column (1304), and the end of the fixed column (1304) away from the extrusion cylinder (1301) is fixedly installed through the end of the collecting cylinder (5), and the end of the fixed column (1304) close to the sealing ring (1302) is fitted with a sliding plug (1305), and the upper port of the connecting pipe (1307) is fitted on the side wall of the plug body of the sliding plug (1305) to form a sealing structure, the connecting pipe (1307) is slidably installed on the fixed column (1304), and the lower end of the connecting pipe (1307) is fixedly installed through the top of the side wall of the processing box (12).

3. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 2 is characterized in that: The plug rod of the sliding plug (1305) is inserted into the mounting tube of the fixed column (1304), and a return spring (1306) is fixedly connected between the end surface of the plug rod and the inner wall of the mounting tube of the fixed column (1304). The sliding plug (1305) is located directly below the protruding rod (1303), and the protruding rod (1303) is installed in a guide groove (14) opened on the inner wall of the collecting tube (5).

4. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 3 is characterized in that: A thrust plate (15) is slidably mounted on the inner wall of the collecting tube (5), and the thrust plate (15) is in an arc-shaped structure. A through inclined guide groove is provided on the side wall of the thrust plate (15), and the convex rod (1303) is fitted in the guide groove of the thrust plate (15). The guide groove (14) provided on the collecting tube (5) is in a horizontal "L" shape.

5. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 1, characterized in that: A force-bearing plug rod (16) is fitted and inserted on the inner wall of one side of the guide cylinder (6) close to the first solenoid valve tube (7), and the force-bearing plug rod (16) is fixedly connected to the thrust plate (15) below through a protrusion arranged in the middle, and the protrusion of the force-bearing plug rod (16) is slidably installed on the top of the collecting cylinder (5), and an oil flow channel is opened at the end of the collecting cylinder (5), and one end of the oil flow channel of the collecting cylinder (5) is arranged toward the extrusion cylinder (1301), and the other end of the oil flow channel is arranged toward the through hole opened at the bottom of the guide cylinder (6), and a force-bearing plug rod (16) is arranged above the through hole of the guide cylinder (6) to play a blocking role.

6. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 5, characterized in that: A transmission rod (17) is arranged parallel to and directly above the stressed plug rod (16), and the lower end of the transmission rod (17) is fixedly connected to the middle of the stressed plug rod (16), and the transmission rod (17) is slidably mounted on the inner walls of the guide cylinder (6) and the air pressure cylinder (18), the air pressure cylinder (18) is fixedly connected to the top of the guide cylinder (6), and an air extraction plug (19) is fitted on the inner wall of the air cavity of the air pressure cylinder (18), and a spring is provided between the end surface of the air extraction plug (19) and the end surface of the transmission rod (17). The air pressure cylinder (18) is connected to the air pump (19), and one end of the air pressure cylinder (18) away from the exhaust plug (19) is fixedly connected to a first one-way valve tube (20) for exhausting gas, and a second one-way valve tube (21) is arranged below the first one-way valve tube (20), and one end of the second one-way valve tube (21) is fixedly connected to the air pressure cylinder (18), and the other end of the second one-way valve tube (21) is fixedly installed on the upper part of the side wall of the processing box (12), and the lower end of the second one-way valve tube (21) faces the top of the inner wall of the processing box (12).

7. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 1, characterized in that: The side wall of the guide cylinder (6) is fixedly connected to an upper port of a liquid inlet pipe (22), and the upper port of the liquid inlet pipe (22) is located on a side of the force-bearing plug rod (16) close to the second solenoid valve pipe (9). The lower port of the liquid inlet pipe (22) is fixedly connected to the loading block (37), and a flush one-way plug (23) is fitted and embedded on the top of the loading block (37), and the top of the one-way plug (23) is arranged toward the inside of the hydraulic cylinder body (1), and the bottom of the one-way plug (23) is located above the lower port of the liquid inlet pipe (22). A connecting frame (24) is arranged below the one-way plug (23), and the connecting frame (24) is fitted and installed on the inner side of the loading block (37), and a tension spring (25) is fixedly connected between the bottom of the connecting frame (24) and the bottom surface of the inner wall of the loading block (37), and a top rod on one side of the top of the connecting frame (24) is fixedly connected to the bottom surface of the one-way plug (23).

8. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 1, characterized in that: The side wall of the collar (2804) is slidably penetrated by force plates (2805) distributed at equal angles, the liquid outlet pipe (27) and the outer shell (2801) are rotatably fitted with corresponding force plates (2805), and corresponding limit blocks (2806) are fitted and embedded in the slide grooves on both sides of the force plates (2805), and the limit blocks (2806) are fixedly installed on the outer wall of the collar (2804), and an inner convex block (2802) is fixedly installed on the inner wall of the outer shell (2801), and the side of the inner convex block (2802) is provided with the end of the corresponding force plate (2805), and the side of the inner convex block (2802) close to the force plate (2805) is in an arc-shaped structure.

9. The exhaust device of the hydraulic system of a papermaking rewinder according to claim 8, characterized in that: The inner convex block (2802) is arranged toward the upper part of the moving block (2807), the moving block (2807) is slidably installed on the fixed shaft (2803), and the arc-shaped outer wall of the moving block (2807) is fitted on the inner wall of the collar (2804), the convex blocks at both ends of the moving block (2807) are respectively fixedly connected with sliders corresponding to the moving rod (30), and the convex blocks of the moving block (2807) are slidably installed on the fixed shaft (2803) The slider of the moving rod (30) is fitted on the inner side of the guide box (29), and a control spring (31) is fixedly connected between the bottom surface of the slider of the moving rod (30) and the inner wall of the guide box (29), the rod body of the moving rod (30) slides through the guide box (29), and the end of the rod body of the moving rod (30) is fixedly connected to the cleaning frame (32), and the cleaning frame (32) is fitted on the inclined surface of the filter plate (33).

10. The method for using the exhaust device of the hydraulic system of a papermaking rewinder according to claim 1, characterized in that: The exhaust device is used as follows: S1: During the use of the existing papermaking rewinding machine, it is necessary to carry out loading and unloading operations of the material roller. The hydraulic cylinder body (1) and the hydraulic plug rod (3) together constitute the hydraulic power structure of the device, which is used to drive the material rack (4) to move and perform auxiliary loading and unloading operations. The placement groove on the material rack (4) is used to place the end of the material roller. Hydraulic oil is stored in the processing box (12). The lower end of the second one-way valve pipe (21) is located above the oil level in the processing box (12). The user starts the hydraulic pump (10), and the hydraulic pump (10) will send the hydraulic oil in the processing box (12) into the supply pipe (8) through the suction pipe (11). The device controls the first electromagnetic valve pipe (7) to open, and the second electromagnetic valve pipe (21) is opened. The magnetic valve tube (9) is closed, the electromagnetic control valve (26) is opened, and the pressure relief electromagnetic valve tube (38) is closed. At this time, the hydraulic oil will flow into the guide cylinder (6) through the first electromagnetic valve tube (7). At this time, the oil in the guide cylinder (6) will push the force-bearing plug rod (16) to move. At this time, the force-bearing plug rod (16) will drive the thrust plate (15) to move. At this time, the inclined groove on the thrust plate (15) will drive the convex rod (1303) to rotate. The convex rod (1303) will drive the sealing ring (1302) to rotate synchronously, so that the sealing ring (1302) can block the lower part of the extrusion cylinder (1301), and the bubbles in the hydraulic cylinder body (1) will gather in the extrusion cylinder (1301); S2: The oil in the guide cylinder (6) will then flow into the collecting cylinder (5), and the high-pressure oil will push the extrusion cylinder (1301) to move in the collecting cylinder (5). At this time, the oil in the extrusion cylinder (1301) will push open the one-way valve body formed by the sliding plug (1305), so that the oil will flow into the processing box (12) through the connecting pipe (1307) for subsequent exhaust operation. During this process, the transmission rod (17) connected to the top of the force-bearing plug rod (16) will drive the exhaust plug (19) to move synchronously in the air pressure cylinder (18). When the end of the extrusion cylinder (1301) no longer blocks the lower port of the hydraulic cylinder body (1), the collecting cylinder ( The oil in the hydraulic cylinder (2805) will flow into the hydraulic cylinder (1) to push the hydraulic plug rod (3) to move. The hydraulic plug rod (3) squeezes out the oil in the lower part of the hydraulic cylinder (1). At this time, the oil in the lower part of the hydraulic cylinder (1) will flow into the outlet pipe (27). The flowing oil will apply a thrust to the force plate (2805), so that the force plate (2805) can drive the collar (2804) to rotate on the fixed shaft (2803). When the force plate (2805) presses against the inner protrusion (2802), the force plate (2805) will slide toward the inner side of the collar (2804). At this time, the force plate (2805) will push the moving block (2807) moves, the moving block (2807) will move in the fixed shaft (2803), so that the moving block (2807) can drive the moving rods (30) at both ends to move synchronously in the guide box (29), thereby compressing the control spring (31). When the force plate (2805) passes through the inner protrusion (2802), the control spring (31) will push the moving rod (30) to move synchronously through the reset action, and the moving rod (30) drives the moving block (2807) to return to the original position synchronously, and the force plate (2805) moves synchronously. In this process, the reciprocating inclined moving rod (30) will drive the cleaning frame (3 2) moving, so that the cleaning rack (32) can clean the oil impurities filtered out by the filter plate (33). Due to the inclined setting of the filter plate (33), the oil impurities will be collected in the storage block (34). Subsequent maintenance can be carried out by rotating the screw (36), so that the screw (36) drives the storage groove of the storage block (34) to move from the sealing shell (35) to discharge the impurities. At the same time, the impact of the cleaning rack (32) and the force plate (2805) will drive the oil in the processing box (12) to vibrate, thereby accelerating the discharge of the gas contained in the oil. The upper end of the liquid outlet pipe (27) is located above the liquid surface of the processing box (12); S3: The device then controls the first solenoid valve tube (7) to close, while the second solenoid valve tube (9) is opened, the solenoid control valve (26) is closed, and the pressure relief solenoid valve tube (38) is opened. At this time, the hydraulic pump (10) will send oil into the second solenoid valve tube (9) through the supply pipe (8), and the oil will flow into the guide cylinder (6) through the second solenoid valve tube (9), thereby pushing the force-bearing plug rod (16) to reset and move. The force-bearing plug rod (16) will drive the thrust plate (15) to move, and at this time the thrust plate (15) will drive the convex rod (1303) performs a reset movement along the "L"-shaped guide groove (14), and the protruding rod (1303) drives the extrusion cylinder (1301) at the bottom to move and reset synchronously, and the protruding rod (1303) then drives the sealing ring (1302) to perform a reset rotation under the action of the inclined groove of the thrust plate (15), so that the sealing ring (1302) no longer blocks the lower end of the extrusion cylinder (1301), and the oil in the guide cylinder (6) and the collection cylinder (5) is discharged into the processing box (12) through the pressure relief solenoid valve tube (38); S4: During the reset movement of the stressed plug rod (16), the stressed plug rod (16) will drive the transmission rod (17) installed on the top to move synchronously, so that the transmission rod (17) can drive the exhaust plug (19) to move in the air cylinder (18) through the spring. At this time, the gas exhausted in the processing box (12) will be sucked into the air cylinder (18) through the second one-way valve pipe (21) so as to be discharged through the first one-way valve pipe (20) in the next cycle. When the stressed plug rod (16) passes through the upper port of the liquid inlet pipe (22), the oil in the guide cylinder (6) will be discharged through the liquid inlet pipe (22). (22) flows into the liquid chamber at the bottom of the loading block (37), at which time the oil will push the one-way plug (23) to move upward, at which time the one-way plug (23) will extend from the top of the loading block (37), and at the same time the one-way plug (23) will drive the connecting frame (24) to stretch the tension spring (25), at which time the oil in the loading block (37) will enter the hydraulic cylinder body (1), at which time the oil will push the hydraulic plug rod (3) to move upward. It can be seen from the above method that the oil in the upper part of the hydraulic cylinder body (1) will flow into the processing box (12) through the extrusion cylinder (1301) and the connecting pipe (1307).

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