Online polishing equipment for roll surface of pinch roll of coiling machine

Abstract

The utility model discloses a coiling machine pinch roll surface on-line polishing device, which relates to the technical field of pinch roll surface polishing, and comprises a device body, the device body comprises a fixed frame, a swing frame, a turnover pressing cylinder, a transverse moving cylinder, a buffer device and a grinding block; supporting devices are installed between the two sides of the fixed frame and the two sides of the swing frame, each supporting device comprises two installation bases and two shaft sleeves, one sides of the two installation bases are fixedly installed on the fixed frame, the other sides of the two installation bases are fixedly connected with the two shaft sleeves, and the two ends of the swing frame are installed in the two shaft sleeves; the number of the overturning and pressing air cylinders is two, and the bottom ends of the overturning and pressing air cylinders are connected with the fixing frame. When the roller surface polishing device is used, the roller surface is directly matched with circumferential rotation of the roller surface to achieve covering polishing of the whole roller surface, the polishing efficiency is high, the contact area of the module and the roller surface is quite comprehensive, and the phenomenon that the roller surface is polished unevenly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pinch roller surface polishing, in particular to an online polishing device for the roller surface of a pinch roller of a coiler. Background Art

[0002] In the production of hot-rolled strip steel, the forward movement of the strip steel in the front channel of the hot-rolled coiler is mainly driven by the pinch rollers. Under heavy load, high temperature and water spray conditions, the pinch roller surface is attached with rust, iron sticking and other granular debris during the production process, which in turn affects the surface quality of the hot-rolled strip steel. On the hot-rolled production line, the coiling pinch roller is located after the online inspection. The strip steel defects caused by the poor surface quality of the pinch roller can only be found through unwinding inspection. It is highly concealed, difficult to detect and has great potential risks, and is a first-level quality risk point. Therefore, it is very necessary to polish and clean the pinch roller surface.

[0003] The polishing machine is a cleaning device that can operate stably for a long time in a high temperature and water spray environment and can effectively remove attachments, small scratches and defects on the surface of the pinch roller.

[0004] The polishing machine equipment works in the pinch roller area, which is a high temperature, water spray, iron oxide powder and highly corrosive environment (mainly electrochemical corrosion), which requires extremely high stability of the equipment. The developed polishing machine equipment must meet the requirements of control accuracy and use environment at the same time.

[0005] The Chinese patent announcement number is CN 207448070 U, which discloses "a device for grinding and polishing the surface of a plate roller", including a base plate, a mounting bracket and a support plate are fixed to the left end of the upper surface of the base plate, a PLC controller is fixed to the left side of the support plate, the mounting bracket is located on the left side of the support plate, the PLC controller detects the pressure of the grinding head on the plate roller through a pressure sensor, and the PLC controller adjusts the extension and retraction of the electric cylinder so that the pressure of the grinding head on the plate roller is maintained within a set range, and the PLC controller detects the stroke of the slider through a first microswitch and a second microswitch, thereby improving the intelligence level and processing accuracy of the device for grinding and polishing the surface of the plate roller, and improving the processing efficiency of the device for grinding and polishing the surface of the plate roller; the arc-shaped baffle prevents the debris from splashing when the grinding head grinds and polishes the plate roller, thereby improving the safety of the device for grinding and polishing the surface of the plate roller; the telescopic rod prevents the torque generated by the grinding head when working from damaging the electric cylinder, thereby improving the safety of the device for grinding and polishing the surface of the plate roller. However, although the grinding and polishing device can grind the roller surface, during grinding, the grinding head of the grinding and polishing device uses longitudinal movement to match the circumferential rotation of the roller surface to achieve coverage of the entire roller surface. However, the structure of the grinding head cannot achieve full roller surface contact coverage polishing. The polishing of the longitudinal movement matched with the circumferential movement of the roller surface not only has low polishing efficiency, but also easily leads to uneven roller surface polishing.

[0006] As mentioned above, we have designed an online polishing equipment for the surface of the pinch roller of the coiler to solve the above problems. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes an online polishing device for the roller surface of a coiler pinch roller.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] An online polishing device for the roller surface of a coiler pinch roller comprises a device body, wherein the device body comprises a fixed frame, a swing frame, a flipping and pressing cylinder, a traverse cylinder, a buffer device, and a grinding block;

[0010] A supporting device is installed between the two sides of the fixed frame and the two sides of the swing frame, and the supporting device includes two mounting seats and two shaft sleeves, one side of the two mounting seats is fixedly mounted on the fixed frame, and the other side of the two mounting seats is fixedly connected to the two shaft sleeves, and the two ends of the swing frame are installed inside the two shaft sleeves;

[0011] The flipping and pressing cylinders are provided with two, the bottom ends of the flipping and pressing cylinders are connected to the fixing frame, and the output ends of the two flipping and pressing cylinders are connected to the swing frame;

[0012] The traverse cylinder is located in the middle between the fixed frame and the swing frame, the bottom of the traverse cylinder is fixedly connected to the fixed frame, and the output end of the traverse cylinder is linked to the bottom of the swing frame;

[0013] The buffer device is installed at the lower part of the swing frame, and a grinding block is connected to the bottom of the buffer device. There are several grinding blocks, and the total length and bottom angle of the grinding block are matched with the length and angle of the roller surface of the feed roller. A connecting frame is connected between the buffer device and the swing frame, and the buffer device includes a mounting frame and several buffers.

[0014] Preferably, it also includes an electrical control system, which includes a dryer, a manual reversing valve, a pneumatic triplet, an electromagnetic reversing valve, a two-position five-way electromagnetic reversing valve, a three-position five-way electromagnetic reversing valve, a one-way pressure reducing valve, a shuttle valve and a one-way throttle valve;

[0015] The dryer, the manual reversing valve, the pneumatic triplet, the electromagnetic reversing valve, the two-position five-way electromagnetic reversing valve, and the three-position five-way electromagnetic reversing valve are sequentially connected in series, and the two-position five-way electromagnetic reversing valve includes a first reversing valve, a second reversing valve and a third reversing valve;

[0016] The one-way pressure reducing valve comprises a first pressure reducing valve and a second pressure reducing valve, and the one-way throttle valve comprises a first throttle valve, a second throttle valve, a third throttle valve and a fourth throttle valve;

[0017] The first reversing valve, the first pressure reducing valve, the shuttle valve and the first throttle valve are connected in series to form a first branch pipeline;

[0018] The second reversing valve, the second pressure reducing valve, the shuttle valve and the first throttle valve are connected in series to form a second branch pipeline;

[0019] The third reversing valve is connected to the second throttle valve to form a third branch pipeline;

[0020] The first branch pipeline, the second branch pipeline and the third branch pipeline are all connected to the flipping and pressing cylinder;

[0021] The three-position five-way electromagnetic reversing valve is connected to the third throttle valve to form a fourth branch pipeline;

[0022] The three-position five-way electromagnetic reversing valve is connected to the fourth throttle valve to form a fifth branch pipeline;

[0023] The fourth branch pipeline and the fifth branch pipeline are both connected to the transverse cylinder.

[0024] Preferably, the pneumatic triplex consists of a filter, a pressure reducing valve and an oil mist collector.

[0025] Preferably, the electromagnetic reversing valve, the two-position five-way electromagnetic reversing valve and the three-position five-way electromagnetic reversing valve are all electrically connected to an electromagnet.

[0026] Preferably, the bottoms of the two flipping and pressing cylinders are rotatably connected to the fixed frame, and the output ends of the two flipping and pressing cylinders are rotatably connected to the swing frame.

[0027] Preferably, five buffers are provided, and the buffers are composed of an outer sleeve, an inner sleeve, a guide rod, a spring, an adjusting nut and a seal. The bottom of the buffer is connected to the grinding block through a guide rod, the guide rod is sleeved in the spring, the inner sleeve and the outer sleeve are installed on the outside of the spring, and the buffer is filled with dry oil.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. There are multiple grinding blocks, and the total length of the grinding blocks is matched with the length and angle of the roller surface of the feed roller. When in use, it can directly cooperate with the circumferential rotation of the roller surface to achieve full coverage polishing of the roller surface. The polishing efficiency is high, and the contact area between the module and the roller surface is very comprehensive, avoiding the phenomenon of uneven roller surface polishing.

[0030] 2. The grinding block is fixed at the bottom of the swing frame, and the swing rod and spring maintain the positive pressure of the grinding block on the roller surface. The function of the grinding block is to remove the attachments on the roller surface. When in use, the grinding block contacts the clamping roller surface through the buffer device. By buffering the pressure, the grinding block causes less wear on the roller surface during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of an online polishing device for the pinch roller surface of a coiler proposed by the utility model;

[0032] Figure 2 A top view of an online polishing device for the pinch roller surface of a coiler proposed by the utility model;

[0033] Figure 3 It is a side view of an online polishing device for the pinch roller surface of a coiler proposed by the utility model;

[0034] Figure 4 This is a flow chart of an electrical control system for an online polishing device for the pinch roller surface of a coiler proposed by the utility model;

[0035] Figure 5 A model diagram of the working state of the turning and pressing cylinder of the online polishing device for the pinch roller surface of the coiler proposed by the utility model;

[0036] Figure 6 for Figure 5 Force analysis diagram of the structure;

[0037] Figure 7 This is a model diagram of the contact between the grinding block and the clamping roller surface of the online polishing device for the clamping roller surface of the coiler proposed by the utility model.

[0038] In the figure: 1 fixed frame, 2 swing frame, 3 flip pressing cylinder, 4 transverse cylinder, 5 buffer device, 501 mounting frame, 502 buffer, 6 grinding block, 7 support device, 701 mounting seat, 702 sleeve, 8 dryer, 9 manual reversing valve, 10 pneumatic triplet, 11 solenoid reversing valve, 12 two-position five-way solenoid reversing valve, 1201 first reversing valve, 1202 second reversing valve, 1203 third reversing valve, 13 three-position five-way solenoid reversing valve, 14 one-way pressure reducing valve, 1401 first pressure reducing valve, 1402 second pressure reducing valve, 15 one-way throttle valve, 1501 first throttle valve, 1502 second throttle valve, 1503 third throttle valve, 1504 fourth throttle valve, 16 shuttle valve. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] An online polishing device for the surface of the pinch roller of a winder proposed in this embodiment is installed on a roller grinding device, wherein the roller grinding device comprises an upper roller grinding device and a lower roller grinding device; the upper roller grinding device is fixed on the frame structure, and the lower roller grinding device is fixed on the foundation. Due to different fixing methods, the upper and lower roller grinding devices are different, but the mechanism principles are the same.

[0041] Embodiment 1

[0042] In this embodiment, refer to Figure 1-3 , an online polishing device for the surface of a pinch roller of a coiler, comprising a device body, the device body comprising a fixed frame 1, a swing frame 2, a flipping and pressing cylinder 3, a traverse cylinder 4, a buffer device 5, and a grinding block 6;

[0043] A support device 7 is installed between the two sides of the fixed frame 1 and the two sides of the swing frame 2. The support device 7 includes two mounting seats 701 and two shaft sleeves 702. One side of the two mounting seats 701 is fixedly mounted on the fixed frame 1, and the other side of the two mounting seats 701 is fixedly connected to the two shaft sleeves 702. The two ends of the swing frame 2 are installed inside the two shaft sleeves 702.

[0044] Two flipping and pressing cylinders 3 are provided, the bottom end of the flipping and pressing cylinder 3 is connected to the fixed frame 1, and the output ends of the two flipping and pressing cylinders 3 are connected to the swing frame 2;

[0045] More specifically, the bottoms of the two flipping and pressing cylinders 3 are rotatably connected to the fixed frame 1, and the output ends of the two flipping and pressing cylinders 3 are rotatably connected to the swing frame 2;

[0046] The traverse cylinder 4 is located in the middle between the fixed frame 1 and the swing frame 2, the bottom of the traverse cylinder 4 is fixedly connected to the fixed frame 1, and the output end of the traverse cylinder 4 is linked to the bottom of the swing frame 2;

[0047] The buffer device 5 is installed at the lower part of the swing frame 2 , the bottom of the buffer device 5 is connected with a grinding block 6 , a connecting frame is connected between the buffer device 5 and the swing frame 2 , and the buffer device 5 includes a mounting frame 501 and a plurality of buffers 502 .

[0048] Among them, there are five buffers 502, which are composed of an outer sleeve, an inner sleeve, a guide rod, a spring, an adjusting nut and a seal. The bottom of the buffer 502 is connected to the grinding block 6 through a guide rod, the guide rod is sleeved in the spring, the inner sleeve and the outer sleeve are installed on the outside of the spring, and the buffer 502 is filled with dry oil.

[0049] More specifically, the fixed frame 1 is used to fix the grinding roller device, wherein the upper grinding roller device is fixed on the frame structure, and the lower grinding roller device is fixed on the foundation.

[0050] Swing frame 2: The swing frame 1 is connected to the fixed frame 2 and driven by the flipping and pressing cylinder 3. When the flipping and pressing cylinder 3 is pushed out, the grinding block 6 contacts the roller surface for grinding, and the grinding is released when it is retracted.

[0051] The utility model has a plurality of grinding blocks 6, and the total length of the grinding blocks 6 is matched with the length and angle of the roller surface of the feed roller, so that the entire roller surface can be polished during use to avoid uneven polishing of the roller surface.

[0052] Transverse cylinder: fixed on the fixed frame 1, driven by the cylinder; when working, it pushes the swing frame 2 to move back and forth, so that the grinding block 6 moves back and forth horizontally to prevent grooves from being worn on the roller surface of the pinch roller.

[0053] Grinding block 6: Grinding block 6 is fixed at the bottom of the swing frame 2, and the swing rod and the spring maintain the positive pressure of the grinding block 6 on the roller surface; the function of the grinding block 6 is to remove the attachments on the roller surface. When in use, the grinding block 6 contacts the clamping roller surface through the buffer device 5. By buffering the pressure, the grinding block 6 has less wear on the roller surface when in use.

[0054] The mechanical assembly consists of a fixed frame, a swing frame, a mobile mechanism, a grinding block and a buffer device. The fixed frame (SUS 304 stainless steel) is the main frame, which is installed above the pinch roller and fixed by bolts of the frame connection blocks on both sides of the pinch roller. It can be disassembled and assembled as a whole. The total length of the fixed frame is equivalent to the width of the frames on both sides of the pinch roller. The total width and height do not exceed the range of the archway profile. The equipment is manufactured according to negative tolerance control and does not interfere with the normal operation of the original equipment.

[0055] The swing frame (SUS 304 stainless steel) is the action frame for the grinding block to press the roller surface and disengage the roller surface. It is connected to the fixed frame through the shaft sleeve and the mounting seat. The pressing cylinder on the swing frame drives the grinding block assembly below to press or disengage the roller surface. By adjusting the air intake pressure of the cylinder, the pressing force of the module on the roller surface is adjusted to achieve the size control of the grinding force of the grinding block.

[0056] Swing cylinder: Φ102 / 35*60

[0057] Mobile cylinder: Φ102 / 35*51

[0058] Swing frame swing angle: max16.8°

[0059] Grinding block: Diamond side length 145*51 thickness 57

[0060] Quantity: 15 pieces

[0061] Grinding block row length: 2315mm

[0062] The buffer device is installed at the bottom of the swing frame to absorb the radial pressure of the grinding block on the pinch roller. The buffer device consists of an outer sleeve, an inner sleeve, a guide rod, a spring, an adjusting nut and a seal, and the buffer is filled with dry oil. The inner and outer sleeves are mainly used to provide support and heat insulation protection for the buffer spring. The guide rod and the adjusting nut can adjust the preload of the buffer to ensure that the preload of each buffer is consistent. The spring is made of high temperature resistant spring and special dual-phase steel to ensure use in harsh environments. The seal is mainly used to prevent water vapor, iron powder and iron filings from entering the buffer to avoid buffer jamming.

[0063] Reference Figure 3 In the figure, the grinding block 6 is fixed at the lower part of the moving mechanism. The pressing cylinder 3 and the spring in the buffer 502 work together to establish a balance system, adjust the pressing amount of the grinding block 6, drive the grinding block 6 to press the roller surface of the pinch roller, and realize the online grinding and polishing of the roller surface through the rotation of the pinch roller. The grinding block is designed with slot size, angle and number to ensure full coverage of the roller surface polishing, and the inclined design allows the grinding debris to be quickly guided out of the roller surface.

[0064] In order to ensure the stability of system operation, no sensors or signal lines are installed on the cylinder to avoid failure of instrument electrical components in a water environment.

[0065] It should be noted that, in the initial state, the cylinder drives the swing arm and the spring damper to press the grinding stone against the surface of the pinch roller. Figure 5 shown.

[0066] like Figure 5 As shown, the number C is a simplified fixed frame (the pinch roller can be classified as a frame when it is not moving), and the number D is a clamping cylinder, which is simplified to a sliding pair. The connecting rod E and the spring damper housing are rigid bodies that rotate around the hinge point A. The spring damper and the slider are simplified to a sliding pair (slider mechanism).

[0067] in accordance with Figure 6 The schematic diagram of the mechanism is shown in Figure 5 Components E and F in the figure are used for force analysis of the system. Since the spring force and damping force are internal forces of the system, no analysis is performed.

[0068] According to the force balance, it can be calculated

[0069] ∑F X =F1+F ax +Ncos(β)=0

[0070] ∑F y =F ay +Nsin(β)-G=0

[0071] ∑M=F1L1-NL2+GL2sin(β)=0

[0072] Based on this, the pressure N=318N can be calculated.

[0073] In this embodiment, an electrical control system of an online polishing device for the roller surface of a coiler pinch roller is also included, including an electrical control system, the electrical control system including a dryer 8, a manual reversing valve 9, a pneumatic triplet 10, an electromagnetic reversing valve 11, a two-position five-way electromagnetic reversing valve 12, a three-position five-way electromagnetic reversing valve 13, a one-way pressure reducing valve 14, a shuttle valve 16 and a one-way throttle valve 15;

[0074] The pneumatic triplex 10 is composed of a filter, a pressure reducing valve and an oil mist collector, and the electromagnetic reversing valve 11, the two-position five-way electromagnetic reversing valve 12 and the three-position five-way electromagnetic reversing valve 13 are all electrically connected to an electromagnet;

[0075] The dryer 8, the manual reversing valve 9, the pneumatic triplet 10, the electromagnetic reversing valve 11, the two-position five-way electromagnetic reversing valve 12, and the three-position five-way electromagnetic reversing valve 13 are sequentially connected in series, and the two-position five-way electromagnetic reversing valve 12 includes a first reversing valve 1201, a second reversing valve 1202, and a third reversing valve 1203;

[0076] The one-way pressure reducing valve 14 includes a first pressure reducing valve 1401 and a second pressure reducing valve 1402 , and the one-way throttle valve 15 includes a first throttle valve 1501 , a second throttle valve 1502 , a third throttle valve 1503 and a fourth throttle valve 1504 ;

[0077] The first reversing valve 1201, the first pressure reducing valve 1401, the shuttle valve 16 and the first throttle valve 1501 are connected in series to form a first branch pipeline; the second reversing valve 1202, the second pressure reducing valve 1402, the shuttle valve 16 and the first throttle valve 1501 are connected in series to form a second branch pipeline; the third reversing valve 1203 is connected to the second throttle valve 1502 to form a third branch pipeline; wherein the first branch pipeline, the second branch pipeline and the third branch pipeline are all connected to the flipping and pressing cylinder 3;

[0078] The three-position five-way solenoid reversing valve 13 is connected to the third throttle valve 1503 to form a fourth branch pipeline; the three-position five-way solenoid reversing valve 13 is connected to the fourth throttle valve 1504 to form a fifth branch pipeline; the fourth branch pipeline and the fifth branch pipeline are both connected to the transverse cylinder 4.

[0079] In this embodiment, the pneumatic control system provides power for the polishing machine equipment, and the pressing and lateral movement of the grinding stone device are completed under the action of the cylinder. Figure 4 As shown:

[0080] The dryer 8 is used to remove moisture from the compressed air to ensure that dry compressed air enters the system. The pneumatic triplex 10 is composed of a filter, a pressure reducing valve and an oil mist collector. After the filter removes impurities such as oil, water, and dust from the compressed air, the pressure reducing valve is used to provide a stable pressure for the system, and the oil mist collector is used to lubricate grease in clean compressed air to reduce the resistance of pneumatic components during operation. The electromagnetic reversing valve 11 is used to control the on and off of the main pipeline and has a signaling function. The two-position five-way electromagnetic reversing valve is a single electromagnetic iron reversing valve with spring reset, which is used to control the operation of the clamping cylinder. The one-way pressure reducing valve 15 has a one-way pressure reducing function, which is used to provide a stable pressure for the clamping cylinder, and different pressures can be selected according to the different roller surfaces. The one-way throttle valve 15 is composed of a one-way valve and a throttle valve, which is used to adjust the operating speed. The three-position five-way electromagnetic reversing valve 13 has a double electromagnetic spring reset function, which is used to control the left and right operation of the transverse cylinder 4.

[0081] In this embodiment, electrical equipment is included, and the electrical control part is integrated in the transport chain control system. A wiring terminal box is installed in the valve box, and the pneumatic valve solenoid valve head is connected to the terminal box. The transport chain PLC control system is connected to the terminal box through a hard-wired control cable, and the control function of the equipment action is realized through the PLC program.

[0082] In this embodiment, the electrical equipment is included, and the L1 transport chain system controls the pinch roller polishing machine according to the production status. When the polishing machine needs to be put into use, the pneumatic system flips the clamping cylinder 3 to press the electromagnetic valve down to get power, drive the swing frame and drive the spring shock absorber + grinding stone assembly to press against the surface of the pinch roller, and complete the surface grinding of the pinch roller when the pinch roller rotates. During the grinding process, the lateral cylinder drives the swing frame to move horizontally along the cylindrical pair to achieve a grinding effect of full coverage of the roller surface.

[0083] More specifically, taking the supply pressure of the clamping cylinder as 3.5 bar as an example, the action flow of the flipping cylinder is as follows: first, the electromagnetic reversing valve (with contact signaling) 11 electromagnet YA5 is energized, compressed air enters the system pipeline, the first reversing valve 1201 electromagnet YA1 is energized, and the third reversing valve 1203 electromagnet YA3 is de-energized. The compressed air with a pressure of 5 bar enters the one-way pressure reducing valve 15 from the first reversing valve 1201, and the pressure is 3.5 bar after the pressure is reduced, and enters the one-way valve part of the first throttle valve 1501 through the shuttle valve 16 and enters the rodless chamber of the flipping clamping cylinder 3.

[0084] At the same time, compressed air enters the rod chamber of the cylinder through the third reversing valve 1203 and the second throttle valve 1502, pushing the rodless chamber of the cylinder outward to form a back pressure effect, and the piston rod moves outward slowly, thereby driving the flipping and pressing cylinder 3 to drive the flip frame and the spring shock absorber grindstone to press on the roller surface. Since the weight of the buffer and the grindstone is much smaller than the weight of the cylinder flip frame, the cylinder-driven flip frame can be regarded as a fixed frame. Under the reverse excitation of the debris on the roller surface, the spring shock absorber is a single-degree-of-freedom spring damping system with damping, and the surface of the pinch roller is polished when the pinch roller rotates. When the polishing machine needs to disengage the pinch roller, the first reversing valve 1201 solenoid YA1 and the electromagnetic reversing valve 5.3 solenoid YA3 lose power at the same time. Under the action of compressed air, the piston rod of the flipping cylinder retracts, driving the swing frame to flip, so that the grindstone device is separated from the pinch roller surface.

[0085] The action process of the transverse cylinder: the electromagnet YA4 of the three-position five-way electromagnetic reversing valve 13 is energized, and the electromagnet YB4 is de-energized. The compressed air enters the left chamber of the transverse cylinder from the one-way valve part of the third throttle valve 1503, driving the piston rod of the transverse cylinder to move horizontally to the right. The air in the right chamber of the transverse cylinder passes through the throttle valve part of the one-way throttle valve assembly and flows through the three-position five-way electromagnetic reversing valve 13 and is discharged into the atmosphere. After a delay of 5s, the electromagnet YA4 loses power and YB4 gains power, and the piston rod of the transverse cylinder drives the swing frame to move horizontally to the left. When transverse movement is not required, the electromagnets YA4 and YB4 lose power at the same time.

[0086] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0088] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An online polishing device for the surface of a pinch roll of a coiler, comprising a device body, characterized in that: The equipment body comprises a fixed frame (1), a swing frame (2), a flipping and pressing cylinder (3), a lateral movement cylinder (4), a buffer device (5), and a grinding block (6); A support device (7) is installed between the two sides of the fixed frame (1) and the two sides of the swing frame (2), and the support device (7) comprises two mounting seats (701) and two shaft sleeves (702), one side of the two mounting seats (701) is fixedly mounted on the fixed frame (1), the other side of the two mounting seats (701) is fixedly connected to the two shaft sleeves (702), and the two ends of the swing frame (2) are installed inside the two shaft sleeves (702); The flipping and pressing cylinders (3) are provided with two, the bottom ends of the flipping and pressing cylinders (3) are connected to the fixed frame (1), and the output ends of the two flipping and pressing cylinders (3) are connected to the swing frame (2); The lateral movement cylinder (4) is located in the middle between the fixed frame (1) and the swing frame (2), the bottom of the lateral movement cylinder (4) is fixedly connected to the fixed frame (1), and the output end of the lateral movement cylinder (4) is linked to the bottom of the swing frame (2); The buffer device (5) is installed at the lower part of the swing frame (2); the bottom of the buffer device (5) is connected to a grinding block (6); a plurality of grinding blocks (6) are provided; the total length and bottom surface angle of the grinding block (6) are adapted to the length and angle of the roller surface of the feed roller; a connecting frame is connected between the buffer device (5) and the swing frame (2); the buffer device (5) comprises a mounting frame (501) and a plurality of buffers (502).

2. The online polishing equipment for the pinch roller surface of a coiler according to claim 1 is characterized in that: It also includes an electrical control system, which includes a dryer (8), a manual reversing valve (9), a pneumatic triplet (10), an electromagnetic reversing valve (11), a two-position five-way electromagnetic reversing valve (12), a three-position five-way electromagnetic reversing valve (13), a one-way pressure reducing valve (14), a shuttle valve (16) and a one-way throttle valve (15); The dryer (8), the manual reversing valve (9), the pneumatic triplet (10), the electromagnetic reversing valve (11), the two-position five-way electromagnetic reversing valve (12), and the three-position five-way electromagnetic reversing valve (13) are sequentially connected in series, and the two-position five-way electromagnetic reversing valve (12) includes a first reversing valve (1201), a second reversing valve (1202), and a third reversing valve (1203); The one-way pressure reducing valve (14) comprises a first pressure reducing valve (1401) and a second pressure reducing valve (1402); the one-way throttle valve (15) comprises a first throttle valve (1501), a second throttle valve (1502), a third throttle valve (1503) and a fourth throttle valve (1504); The first reversing valve (1201), the first pressure reducing valve (1401), the shuttle valve (16) and the first throttle valve (1501) are connected in series to form a first branch pipeline; The second reversing valve (1202), the second pressure reducing valve (1402), the shuttle valve (16) and the first throttle valve (1501) are connected in series to form a second branch pipeline; The third reversing valve (1203) is connected to the second throttle valve (1502) to form a third branch pipeline; The first branch pipeline, the second branch pipeline and the third branch pipeline are all connected to the turning and pressing cylinder (3); The three-position five-way electromagnetic reversing valve (13) is connected to the third throttle valve (1503) to form a fourth branch pipeline; The three-position five-way electromagnetic reversing valve (13) is connected to the fourth throttle valve (1504) to form a fifth branch pipeline; The fourth branch pipeline and the fifth branch pipeline are both connected to the transverse movement cylinder (4).

3. The online polishing device for the pinch roller surface of a coiler according to claim 2, characterized in that: The pneumatic triplex (10) is composed of a filter, a pressure reducing valve and an oil mist collector.

4. The online polishing device for the pinch roller surface of a coiler according to claim 2, characterized in that: The electromagnetic reversing valve (11), the two-position five-way electromagnetic reversing valve (12) and the three-position five-way electromagnetic reversing valve (13) are all electrically connected to an electromagnet.

5. The online polishing device for the pinch roller surface of a coiler according to claim 1 is characterized in that: The bottoms of the two flipping and pressing cylinders (3) are rotatably connected to the fixed frame (1), and the output ends of the two flipping and pressing cylinders (3) are rotatably connected to the swing frame (2).

6. The online polishing device for the pinch roller surface of a coiler according to claim 1, characterized in that: The buffer (502) is provided with five, and the buffer (502) is composed of an outer sleeve, an inner sleeve, a guide rod, a spring, an adjusting nut and a seal. The bottom of the buffer (502) is connected to the grinding block (6) through the guide rod, the guide rod is sleeved in the spring, the inner sleeve and the outer sleeve are installed on the outer side of the spring, and the buffer (502) is filled with dry oil.

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