A flattening roll twist device and method

Abstract

The application provides a crushing roller torsion forming device and method. The crushing roller torsion forming device comprises a frame, a pair of clamping mechanisms for rotating a plurality of racks, a buckle chain for fixing the plurality of racks, and a pair of positioning mandrels for positioning a roller, the buckle chain is installed in the middle of the frame, the pair of clamping mechanisms are correspondingly rotatably installed on the two sides of the frame, the buckle chain is located between the pair of clamping mechanisms, and the pair of positioning mandrels are correspondingly slidably installed on the frame. One-time cold torsion forming is adopted, the size of the formed crushing roller meets the requirements, the deformation of the rack is uniform during the torsion forming process, the product consistency is met, the products can be interchanged, and pairing is not required during installation. The crushing effect is good during the forage harvesting process, and the service life is long. The problem that the torsion forming effect of the metal structure crushing roller is poor and cannot meet the use requirements is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of production equipment of flattening roller, in particular to a flattening roller torsion device and method. BACKGROUND

[0002] The flattening roller is a core part of a header on a mower, which adopts a herringbone structure and is composed of a roller and eight racks, wherein the eight racks are uniformly arranged along the roller, are twisted by 90 degrees relative to both ends in the middle, are welded with the roller after shaping, and mainly function to flatten the cut forage stems by mutual engagement of two flattening rollers, so as to accelerate the drying speed of forage and reduce the loss of nutrients. At present, due to the restriction of torsion process, the torsion effect of the flattening roller with metal structure is poor, which leads to unsatisfactory flattening effect of forage in the mowing process, so that the rubber shaping is mostly adopted. Since the service life of the flattening roller with rubber is very low, it needs to be replaced frequently and the flattening effect is not as good as that of the flattening roller with metal structure. SUMMARY

[0003] The present application solves the technical problems of the prior art and provides a flattening roller torsion device and method.

[0004] The technical scheme for solving the above technical problems is as follows: a flattening roller torsion device, comprising: a rack, a pair of clamping mechanisms for twisting a plurality of racks, a buckle chain for fixing a plurality of racks, and a pair of positioning mandrels for positioning a roller, wherein the buckle chain is installed in the middle of the rack, a pair of clamping mechanisms are correspondingly installed on both sides of the rack, the buckle chain is located between a pair of clamping mechanisms, and a pair of positioning mandrels are correspondingly and slidingly installed on the rack.

[0005] The beneficial effects of the technical scheme of the present application are as follows: one-time cold torsion shaping is adopted, the size of the shaped flattening roller meets the requirements, the deformation of the rack is uniform during the torsion process, the product consistency is satisfied, the products can be interchanged and do not need to be matched for installation. The flattening effect is good during the forage harvesting process, and the service life is long. The problem of poor torsion effect of the flattening roller with metal structure and the failure to meet the use requirements is solved.

[0006] Further, the clamping mechanism comprises: a first support disc, a second support disc, a plurality of pressing blocks, a plurality of connecting plates, and a plurality of adjusting bolts, the first support disc and the second support disc are disc structures, the first support disc and the second support disc are coaxially arranged, both ends of a plurality of connecting plates are correspondingly connected with the first support disc and the second support disc, a plurality of adjusting bolts are correspondingly penetrated through a plurality of connecting plates and connected with a plurality of pressing blocks.

[0007] The beneficial effects of the further technical scheme are that the pressing blocks are used to press the racks respectively, and the multiple pressing blocks are fixed on the connecting plate between the two support plates and connected through the adjusting bolts.

[0008] Further, the adjusting bolts are threadedly connected with the connecting plate, and the pressing blocks are rotationally connected with the free ends of the adjusting bolts; the first support plate and the pressing blocks are both provided with first clamping grooves matched with the racks.

[0009] The beneficial effects of the further technical scheme are that each pressing block can rotate around the center of the adjusting bolt to automatically adjust the rotation angle with the change of the torsion angle during the torsion of the rack. Meanwhile, since the torsion is powered by the hydraulic power, the torsion torque can be adjusted according to the pressing condition of the pressing block to ensure that the rack is closely contacted with the roller, the welding requirement is met, and the overall dynamic balance is not too poor. The clamping grooves are provided to facilitate the pressing and fixing of the rack by the clamping mechanism and facilitate the rotation of the rack by the clamping mechanism.

[0010] Further, the pressing blocks are provided with retreat-stop plates, and the free ends of the adjusting bolts are provided with retreat-stop grooves, and the retreat-stop plates are rotationally installed in the retreat-stop grooves.

[0011] The beneficial effects of the further technical scheme are that the retreat-stop plates and the retreat-stop grooves are provided so that each pressing block can rotate around the center of the adjusting bolt to automatically adjust the rotation angle with the change of the torsion angle during the torsion of the rack. The structure is simple and convenient for installation and maintenance.

[0012] Further, the rack is provided with a pair of air cylinders, and the pair of air cylinders are connected with a pair of positioning mandrels one by one, the positioning mandrels are transitionally matched with the clamping mechanism, and the rack and the roller are both made of metal.

[0013] The beneficial effects of the further technical scheme are that the roller is positioned by the inner diameter, the roller is provided with positioning mandrels at both ends, the positioning mandrels and the roller are in sliding fit, and the positioning mandrels and the support plates are in transition fit. The positioning mandrels are convenient for insertion into and sliding out of the roller, convenient for supporting and positioning the roller, and prevent the roller from shaking during the torsion. The positioning mandrels and the roller are in sliding fit so that the rack and the roller can be closely contacted to rotate around the positioning mandrel together during the torsion of the rack. The air cylinders are provided to realize the automatic control of the flattening roller torsion device and improve the automation.

[0014] Furthermore, the clamping mechanism is connected to a torsion cylinder, one end of the chain is fixedly connected to the frame, and the other end of the chain is connected to an adjusting cylinder for adjusting the concentricity and straightness of the rollers. Both the torsion cylinder and the adjusting cylinder are mounted on the frame.

[0015] The beneficial effects of adopting the above-mentioned further technical solution are: using hydraulic power as the torsion force increases the torque of the flattening roller torsion device, thereby improving its stability and reliability. The chain has two support points, one of which is a fixed point, and the other is connected to an adjusting cylinder. The fixed point is used for the initial positioning of the flattening roller, and the adjusting cylinder is used to adjust the concentricity of the roller. Through the torsion cylinder and the adjusting cylinder, automatic control of the flattening roller torsion device is achieved, improving automation.

[0016] Furthermore, both the torsion cylinder and the adjusting cylinder are connected to a hydraulic station via a synchronization valve.

[0017] The beneficial effects of adopting the above-mentioned further technical solution are: torsion cylinders are installed at both ends, and power is provided by a hydraulic station. The appropriate cylinder diameter and stroke are selected according to the size of the torsion torque and torsion angle. The cylinders on both sides are controlled by a synchronous valve to keep the torsion torque on both sides uniform.

[0018] Furthermore, the buckle has a disc structure, with multiple second slots in the middle that are adapted to the rack, and a pair of ear plates on the outer side of the buckle.

[0019] The beneficial effect of adopting the above-mentioned further technical solution is that the chain is machined with a second groove that is consistent with the cross-sectional shape of the rack, so as to evenly fix multiple racks around the periphery of the roller, which facilitates the pressing and fixing of the racks.

[0020] Furthermore, the present invention also provides a method for twisting a flattening roller, based on a flattening roller twisting device described in any one of the above claims, the method comprising:

[0021] S1. Insert a pair of positioning mandrels into both ends of the roller;

[0022] S2. Install multiple racks into the clamping mechanism and the chain respectively;

[0023] S3. Rotate a pair of clamping mechanisms to drive multiple racks to rotate around the roller to a preset angle;

[0024] S4. Weld multiple toothed racks to the roller to form a flattening roller;

[0025] S5. Remove the flattening roller from the pair of positioning mandrels.

[0026] The beneficial effects of adopting the technical solution of this invention are: It employs one-time cold twisting forming, ensuring the flattening roller meets dimensional requirements after forming; the rack deforms uniformly during the twisting process, achieving product consistency; and the products are interchangeable, eliminating the need for pairing during installation. It provides excellent flattening effect during forage harvesting and has a long service life. It solves the problem of poor twisting effect in metal structure flattening rollers, which fails to meet usage requirements.

[0027] Further, step S2 includes: S21, inserting the rack into the first slot of the first support plate;

[0028] S22. Rotate the adjusting bolt to press the pressure block against the rack;

[0029] S23. Lock the rack and pinion using the chain;

[0030] S24. Adjust the concentricity and straightness of the rollers by adjusting the hydraulic cylinder until they meet the requirements;

[0031] In step S1, a pair of positioning mandrels are inserted into both ends of the roller using a cylinder;

[0032] In step S3, a pair of clamping mechanisms are rotated one-to-one by a pair of torsion cylinders, which drives multiple racks to rotate around the roller to a preset angle.

[0033] The beneficial effects of adopting the above-mentioned further technical solution are: the adjusting cylinder is used to adjust the concentricity of the roller. Through the setting of the torsion cylinder, air cylinder, and adjusting cylinder, the automatic control of the flattening roller torsion device is achieved, improving automation.

[0034] The advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is one of the structural schematic diagrams of the flattening roller torsion device provided in an embodiment of the present invention.

[0036] Figure 2 This is the second schematic diagram of the flattening roller torsion device provided in the embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the chain provided in an embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the clamping mechanism provided in an embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of the structure of the flattening roller provided in an embodiment of the present invention.

[0040] Figure 6This is a schematic flowchart of the flattening roller twisting method provided in an embodiment of the present invention.

[0041] Explanation of reference numerals: 1. Frame; 2. Rack; 3. Clamping mechanism; 31. First support plate; 32. Second support plate; 33. Pressure block; 34. Connecting plate; 35. Adjusting bolt; 36. First slot; 37. Anti-reverse plate; 38. Anti-reverse groove; 4. Chain buckle; 41. Second slot; 42. Ear plate; 5. Roller; 6. Positioning mandrel; 7. Cylinder; 8. Torsion cylinder; 9. Adjusting cylinder. Detailed Implementation

[0042] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0043] like Figures 1 to 5 As shown, an embodiment of the present invention provides a flattening roller twisting device, including: a frame 1, a pair of clamping mechanisms 3 for twisting multiple racks 2, a chain 4 for fixing multiple racks 2, and a pair of positioning spindles 6 for positioning a roller 5. The chain 4 is installed in the middle of the frame 1, the pair of clamping mechanisms 3 are rotatably installed on both sides of the frame 1, the chain 4 is located between the pair of clamping mechanisms 3, and the pair of positioning spindles 6 are slidably installed on the frame 1.

[0044] The beneficial effects of adopting the technical solution of this invention are: It employs one-time cold twisting forming, ensuring the flattening roller meets dimensional requirements after forming; the rack deforms uniformly during the twisting process, achieving product consistency; and the products are interchangeable, eliminating the need for pairing during installation. It provides excellent flattening effect during forage harvesting and has a long service life. It solves the problem of poor twisting effect in metal structure flattening rollers, which fails to meet usage requirements.

[0045] The rack can have eight teeth. Correspondingly, the number of pressure blocks, connecting plates, adjusting bolts, first slots, anti-reverse plates, and second slots can also be eight. Compared to thermoforming, the rack deforms more uniformly during the torsion process, ensuring product consistency.

[0046] like Figures 1 to 5 As shown, the clamping mechanism 3 further includes: a first support plate 31, a second support plate 32, a plurality of pressure blocks 33, a plurality of connecting plates 34, and a plurality of adjusting bolts 35. The first support plate 31 and the second support plate 32 are both disc structures and are coaxially arranged. The two ends of the plurality of connecting plates 34 are connected to the first support plate 31 and the second support plate 32 respectively. The plurality of adjusting bolts 35 pass through the plurality of connecting plates 34 respectively and are connected to the plurality of pressure blocks 33.

[0047] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The rack is pressed by pressure blocks, and multiple pressure blocks are fixed to the connecting plate between the two support plates and connected by adjusting bolts. The pressure on the rack from both sides is achieved through threaded connections, allowing for adjustment of the pressure force. This facilitates adjustment of the pressure force according to actual needs, ensuring that the rack can maintain a tight fit with the roller during the twisting process, while also moving according to the magnitude of the deformation.

[0048] The flattening roller has rotatable pressure blocks at both ends, which can ensure that the rack can be adjusted according to the angle of twist. The connecting plate is fixedly connected to the two side support plates (first support plate and second support plate) by bolts. The adjusting bolt is threaded to the connecting plate. The end of the adjusting bolt is machined with a backlash groove and is connected to the pressure block through the backlash plate. The clamping force of the pressure block on the rack is adjusted by rotating the bolt in the forward and reverse directions.

[0049] The adjusting cylinder is installed on the chain and is used to adjust the concentricity and straightness of the roller. There are two torsion cylinders, which are connected to the support plates (first support plates) at both ends respectively. When the torsion cylinder pulls the support plate (first support plate) to rotate, the support plate (first support plate) drives the eight racks to rotate around the center through the pressure block, thereby completing the torsion.

[0050] like Figures 1 to 5 As shown, the adjusting bolt 35 is threadedly connected to the connecting plate 34, and the pressure block 33 is rotatably connected to the free end of the adjusting bolt 35; both the first support plate 31 and the pressure block 33 are provided with a first slot 36 adapted to the rack 2.

[0051] The beneficial effects of adopting the above-mentioned further technical solution are: each pressure block can rotate around the center of the adjusting bolt, so that the rotation angle can be automatically adjusted as the twisting angle changes during the rack twisting process. Simultaneously, since the twisting is hydraulically powered, the twisting torque can be adjusted according to the pressure condition of the pressure blocks, ensuring close contact between the rack and the roller, guaranteeing welding requirements, and ensuring that the overall dynamic balance is not too far off. The slot design facilitates the clamping mechanism's clamping and fixing of the rack, and also facilitates the clamping mechanism's rotation of the rack.

[0052] like Figures 1 to 5 As shown, the pressure block 33 is further provided with a backstop plate 37, and the free end of the adjusting bolt 35 is provided with a backstop groove 38. The backstop plate 37 is rotatably installed in the backstop groove 38.

[0053] The beneficial effects of adopting the above-mentioned further technical solution are: the anti-reverse plate and anti-reverse groove allow each pressure block to rotate around the center of the adjusting bolt, so that the rotation angle can be automatically adjusted as the twisting angle changes during the rack twisting process. The structure is simple and easy to install and maintain.

[0054] like Figures 1 to 5As shown, the frame 1 is further provided with a pair of cylinders 7, and the pair of cylinders 7 are connected to a pair of positioning spindles 6 in a one-to-one correspondence. The positioning spindles 6 are transitionally fitted with the clamping mechanism 3. The rack 2 and the roller 5 are both made of metal.

[0055] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the roller is positioned by its inner diameter, and positioning mandrels are respectively provided at both ends of the roller. The positioning mandrels and the roller are in a sliding fit, and the positioning mandrels and the support plate are in a transition fit. This facilitates the insertion and sliding out of the positioning mandrels from the roller, provides support and positioning for the roller, and prevents the roller from shaking during the twisting process. The sliding fit between the positioning mandrels and the roller ensures that the rack and roller maintain close contact, allowing the rack to rotate around the positioning mandrels together with the roller during the twisting process. The inclusion of a cylinder enables automatic control of the flattening roller twisting device, improving automation.

[0056] like Figures 1 to 5 As shown, the clamping mechanism 3 is further connected to a torsion cylinder 8, one end of the chain 4 is fixedly connected to the frame 1, and the other end of the chain 4 is connected to an adjusting cylinder 9 for adjusting the concentricity and straightness of the roller 5. Both the torsion cylinder 8 and the adjusting cylinder 9 are mounted on the frame 1.

[0057] The beneficial effects of adopting the above-mentioned further technical solution are: using hydraulic power as the torsion force increases the torque of the flattening roller torsion device, thereby improving its stability and reliability. The chain has two support points, one of which is a fixed point, and the other is connected to an adjusting cylinder. The fixed point is used for the initial positioning of the flattening roller, and the adjusting cylinder is used to adjust the concentricity of the roller. Through the torsion cylinder and the adjusting cylinder, automatic control of the flattening roller torsion device is achieved, improving automation.

[0058] The racks are fixed at two points, one of which is not fixed, while the other is adjusted using an adjusting cylinder to ensure the concentricity of the rollers. The intermediate fixing chain, also secured by an adjusting cylinder, ensures the coaxiality of the flattening rollers. The fixing points are connected and fixed to the machine frame via a support frame. The chain has slots (second slots) machined to match the cross-sectional shape of the racks, evenly fixing the eight racks around the perimeter of the rollers. By adjusting the up-and-down movement of the adjusting cylinder, the center height of the rollers and the eight racks is adjusted so that the center height of the rollers is consistent with both ends, thus ensuring the concentricity and straightness of the rollers.

[0059] like Figures 1 to 5 As shown, both the torsion cylinder 8 and the adjusting cylinder 9 are connected to a hydraulic station via a synchronization valve.

[0060] The beneficial effects of adopting the above-mentioned further technical solution are: torsion cylinders are installed at both ends, and power is provided by a hydraulic station. The appropriate cylinder diameter and stroke are selected according to the size of the torsion torque and torsion angle. The cylinders on both sides are controlled by a synchronous valve to keep the torsion torque on both sides uniform.

[0061] like Figures 1 to 5 As shown, the buckle 4 is further described as a disc structure, with multiple second slots 41 in the middle of the buckle 4 that are adapted to the rack 2, and a pair of ear plates 42 on the outer side of the buckle 4.

[0062] The beneficial effect of adopting the above-mentioned further technical solution is that the chain is machined with a second groove that is consistent with the cross-sectional shape of the rack, so as to evenly fix multiple racks around the periphery of the roller, which facilitates the pressing and fixing of the racks.

[0063] 1. This invention solves the problem of poor twisting effect in metal flattening rollers, failing to meet usage requirements. Most flattening rollers are formed by marking lines on the roller and manually heating and twisting, resulting in dimensional deviations and poor consistency after twisting. Uneven stress during use can easily lead to imbalance and render them unusable. This invention uses a one-time cold twisting process, resulting in flattening rollers that meet dimensional requirements, have good consistency, and uniform deformation. This provides excellent flattening effect during forage harvesting and extends service life. 2. Since manual heating and twisting methods cannot meet product consistency requirements, they generally require paired installation. If one roller malfunctions, both must be replaced. With the process solution of this invention, product consistency is met, and products are interchangeable, eliminating the need for paired installation.

[0064] Taking advantage of the flattening roller's structural characteristics, hydraulic pressure is used as the torsional force. Eight racks are fixed in the middle by a chain, with two support points (located on two ear plates). One is fixed, and the other is connected to an adjusting cylinder. The fixed point is used for initial positioning of the flattening roller, while the adjusting cylinder is used to adjust the roller's concentricity. Pressure blocks at both ends respectively press the racks. The eight pressure blocks are fixed to a connecting plate between two support plates (the first and second support plates) via bolts. The clamping force is adjusted via threads. Each pressure block and connecting bolt can rotate around the bolt's center, automatically adjusting the rotation angle as the rack torsional angle changes during the torsional process.

[0065] The middle roller is positioned by its inner diameter, and positioning mandrels are provided at both ends of the roller. The positioning mandrels and the roller are in a sliding fit, and the positioning mandrels and the support plate are in a transition fit.

[0066] Torque cylinders are installed at both ends and powered by a hydraulic station. The appropriate cylinder diameter and stroke are selected according to the size of the torsional torque and torsional angle. The cylinders (torque cylinders) on both sides are controlled by a synchronous valve to keep the torsional torque on both sides uniform.

[0067] like Figure 6 As shown, in addition, the present invention also provides a method for twisting a flattening roller, based on a flattening roller twisting device according to any one of the above claims, the method for twisting a flattening roller includes:

[0068] S1. Insert a pair of positioning mandrels into both ends of the roller;

[0069] S2. Install multiple racks into the clamping mechanism and the chain respectively;

[0070] S3. Rotate a pair of clamping mechanisms to drive multiple racks to rotate around the roller to a preset angle;

[0071] S4. Weld multiple toothed racks to the roller to form a flattening roller;

[0072] S5. Remove the flattening roller from the pair of positioning mandrels.

[0073] The beneficial effects of adopting the technical solution of this invention are: It employs one-time cold twisting forming, ensuring the flattening roller meets dimensional requirements after forming; the rack deforms uniformly during the twisting process, achieving product consistency; and the products are interchangeable, eliminating the need for pairing during installation. It provides excellent flattening effect during forage harvesting and has a long service life. It solves the problem of poor twisting effect in metal structure flattening rollers, which fails to meet usage requirements.

[0074] Further, step S2 includes: S21, inserting the rack into the first slot of the first support plate;

[0075] S22. Rotate the adjusting bolt to press the pressure block against the rack;

[0076] S23. Lock the rack and pinion using the chain;

[0077] S24. Adjust the concentricity and straightness of the rollers by adjusting the hydraulic cylinder until they meet the requirements;

[0078] In step S1, a pair of positioning mandrels are inserted into both ends of the roller using a cylinder;

[0079] In step S3, a pair of clamping mechanisms are rotated one-to-one by a pair of torsion cylinders, which drives multiple racks to rotate around the roller to a preset angle.

[0080] The beneficial effects of adopting the above-mentioned further technical solution are: the adjusting cylinder is used to adjust the concentricity of the roller. Through the setting of the torsion cylinder, air cylinder, and adjusting cylinder, the automatic control of the flattening roller torsion device is achieved, improving automation.

[0081] Working process: After the propulsion cylinder retracts to its position, the roller is first inserted into the positioning mandrels on both sides. Then, the eight racks are sequentially inserted into the corresponding slots (first slots) of the first support plate. The propulsion cylinders at both ends are then pushed into place. After the roller and racks are in position, the adjusting bolts are tightened, and the eight racks are locked in place using a chain. The adjustment cylinder is then used to adjust the roller to the correct position. The torsion cylinder is then activated to pull the first support plate to rotate, causing the racks to rotate around the roller to the required degree. The torsion cylinder is then locked. Next, the racks are welded to the roller. Then, the cylinder is activated in the opposite direction to disengage the welded assembly (flattened roller). This completes the torsion and welding of the flattened roller.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flattening roller twisting device, characterized in that, include: The machine comprises a frame, a pair of clamping mechanisms for rotating multiple racks, a chain for fixing multiple racks, and a pair of positioning spindles for positioning the rollers. The chain is installed in the middle of the frame, and the pair of clamping mechanisms are rotatably mounted on both sides of the frame. The chain is located between the pair of clamping mechanisms, and the pair of positioning spindles are slidably mounted on the frame. The clamping mechanism includes a first support plate, a second support plate, multiple pressure blocks, multiple connecting plates, and multiple adjusting bolts. The first support plate and the second support plate are both disc structures and are coaxially arranged. The two ends of the multiple connecting plates correspond to the first support plate and the second support plate, respectively. Two support discs are connected, and multiple adjusting bolts pass through multiple connecting plates and are connected to multiple pressure blocks in a one-to-one correspondence; the adjusting bolts are threadedly connected to the connecting plates, and the pressure blocks are rotatably connected to the free ends of the adjusting bolts; both the first support disc and the pressure blocks are provided with first slots adapted to the rack; the clamping mechanism is connected to a torsion cylinder, one end of the chain is fixedly connected to the frame, and the other end of the chain is connected to an adjusting cylinder for adjusting the concentricity and straightness of the rollers; both the torsion cylinder and the adjusting cylinder are mounted on the frame; the chain has a disc structure, and the middle of the chain is provided with multiple second slots adapted to the rack, and the outer side of the chain is provided with a pair of ear plates.

2. The flattening roller twisting device according to claim 1, characterized in that, The pressure block is provided with a backstop plate, and the free end of the adjusting bolt is provided with a backstop groove. The backstop plate is rotatably installed in the backstop groove.

3. The flattening roller twisting device according to claim 1, characterized in that, The frame is equipped with a pair of cylinders, which are connected one-to-one with a pair of positioning mandrels. The positioning mandrels are transitionally fitted with the clamping mechanism. The rack and roller are made of metal.

4. The flattening roller twisting device according to claim 1, characterized in that, Both the torsion cylinder and the adjusting cylinder are connected to a hydraulic station via a synchronization valve.

5. A method for twisting a flattening roller, characterized in that, Based on any one of claims 1 to 4, the flattening roller torsion device and the flattening roller torsion method include: S1. Insert a pair of positioning mandrels into both ends of the roller; S2. Install multiple racks into the clamping mechanism and the chain respectively; S3. Rotate a pair of clamping mechanisms to drive multiple racks to rotate around the roller to a preset angle; S4. Weld multiple toothed racks to the roller to form a flattening roller; S5. Remove the flattening roller from the pair of positioning mandrels.

6. The method for flattening and twisting a roller according to claim 5, characterized in that, Step S2 includes: S21, inserting the rack into the first slot of the first support plate; S22. Rotate the adjusting bolt to press the pressure block against the rack; S23. Lock the rack and pinion using the chain; S24. Adjust the concentricity and straightness of the rollers by adjusting the hydraulic cylinder until they meet the requirements; In step S1, a pair of positioning mandrels are inserted into both ends of the roller using a cylinder; In step S3, a pair of clamping mechanisms are rotated one-to-one by a pair of torsion cylinders, which drives multiple racks to rotate around the roller to a preset angle.

Images