Tool and method for replacing pinch roll

Abstract

The replacement tool comprises a main body piece, a displacement piece and connecting pieces, the connecting pieces are fixedly arranged on original bolt holes in the two sides of an upper roller base and the two sides of a lower roller base respectively, and an upper pinch roll and a lower pinch roll are kept to form a stable disassembly and assembly whole. Then the main body piece is moved to the operation side of the pinch roll, the height of the main body piece is adjusted, the top face of the displacement piece and the bottom face of the lower roll base are made to be at the same height, and after the upper roll base and the lower roll base are detached and separated, the displacement piece is relatively moved on the main body piece to the position below the pinch roll, the lower roll base and the displacement piece are fixedly connected; according to the clamping and conveying roller replacing tool, the clamping and conveying roller is detached by moving the displacement piece for supporting the clamping and conveying roller again, then the replaced clamping and conveying roller is installed, the operation procedures such as detaching a hydraulic cylinder are avoided, the two operation rollers are operated to be detached and replaced at the same time, the operation efficiency is improved, and the replacing tool is higher in applicability, adjustability and operability to an operation area.

Description

Technical Field

[0001] This application relates to the field of pinch roller assembly and disassembly technology, and in particular to a tooling and method for replacing pinch rollers. Background Technology

[0002] The information provided in this section is for the purpose of generally presenting the background of this disclosure. To the extent described in this section, the work of the currently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art of this disclosure.

[0003] In metallurgical machinery, pinch rollers are key equipment used in the processing of metal sheets, strips, or coils. Their main function is to ensure the smooth transfer and precise positioning of materials during processing. Pinch rollers are usually designed in pairs, located on the upper and lower sides of the material, respectively. They control the material's forward speed and position by squeezing each other. When a pair of pinch rollers rotate, they contact the material surface and apply a certain pressure, generating friction and causing the material to move in a set direction. The rotational speed and pressure of the pinch rollers can be adjusted according to processing requirements to ensure stable material transfer.

[0004] The unit's pinch rolls are positioned vertically with the same diameter. The lower roll is a fixed roll, while the upper roll is driven by a hydraulic cylinder to pinch the strip. When both working rolls need to be replaced simultaneously, the hydraulic cylinder of the upper roll must be removed first, and then the two rolls must be lifted out sequentially from the location of the removed hydraulic cylinder. This results in a time-consuming replacement process, the removal of numerous auxiliary equipment, and low efficiency. Summary of the Invention

[0005] In view of the deficiencies in the prior art, this application provides a tooling and method for replacing pinch rollers, so as to solve the problems of low efficiency and complex auxiliary equipment when replacing pinch rollers in the prior art.

[0006] The above-mentioned objectives of this application are mainly achieved through the following technical solutions:

[0007] A tooling for changing pinch rollers, the tooling comprising:

[0008] The main body is arranged under the pinch roller, and the height of the main body is adjustable.

[0009] A displacement member is movably disposed on the main body, and the displacement member has a supporting area for supporting the pinch roller, and can support the pinch roller to reciprocate on the main body.

[0010] A connector is used to be installed on the upper roller seat and the lower roller seat so as to fix the upper roller seat and the lower roller seat in place.

[0011] In an optional embodiment, the main body includes a plurality of first support portions, the length of which is adapted to the working height of the pinch roller, so that the displacement member can be moved under the pinch roller.

[0012] In an optional embodiment, the main body is provided with a plurality of adjustable members arranged at intervals between each other. The adjustable members are telescopically configurable to change the height of the main body until the supporting area contacts the bottom surface of the pinch roller.

[0013] In an optional embodiment, the adjusting member is an adjusting screw, which is threadedly connected to one end of the first support portion away from the main body.

[0014] In an optional embodiment, the main body is provided with a plurality of vertically arranged constraint members, and when the displacement member supports the pinch roller, the constraint members are blocked on both sides of the pinch roller.

[0015] In an optional embodiment, a guide rail is provided between the displacement member and the main body member, and the displacement member is disposed on the guide rail and reciprocates along the extension direction of the guide rail.

[0016] In an optional embodiment, a stop is provided on one side of the guide rail to prevent the displacement member from dislodging.

[0017] In an optional embodiment, the connector is provided with a plurality of first fixing screws, the displacement member is provided with a plurality of second fixing screws, and when the upper roller seat and the lower roller seat are in the working state, the first fixing screws and the second fixing screw can respectively engage with the bolt holes on the upper roller seat and the lower roller seat.

[0018] In an optional embodiment, the connector is provided with two arc grooves, and the inner wall of the arc grooves is used to be attached to the outer peripheral surface of the bearing housing. When the connector connects the upper roller seat and the lower roller seat, the connector is supported between the bearing housings of the upper roller seat and the lower roller seat.

[0019] Based on the same inventive concept, this application also provides a method for replacing a pinch roller, wherein the replacement method is performed using the replacement fixture described above, and the replacement method includes the following steps:

[0020] The operation involves pressing down the pinch rollers and putting both the upper and lower pinch rollers into working condition.

[0021] Connecting parts are fixedly installed on the existing bolt holes on both sides of the upper and lower roller seats respectively;

[0022] Move the main body to the operating side of the pinch roller and adjust the height of the main body so that the top surface of the displacement component is at the same height as the bottom surface of the lower roller seat.

[0023] Move the displacement component, and after the displacement component moves to the bottom of the clamping roller, fix the lower roller seat and the displacement component together.

[0024] Move the displacement component supporting the pinch roller again until the pinch roller moves to the target position;

[0025] The replacement pinch roller is placed on the displacement member, and the displacement member is moved to the installation position of the pinch roller. After the displacement member and the connecting member are removed, the replacement of the pinch roller is completed.

[0026] Compared with the prior art, the advantages of this application are:

[0027] The clamping roller replacement fixture in this application includes a main body, a displacement component, and a connecting component. The main body is arranged under the clamping roller, and its height is adjustable. The displacement component is movably mounted on the main body and has a support area for supporting the clamping roller, allowing it to reciprocate on the main body. The connecting component is installed on the upper roller seat and the lower roller seat to fix them together. When replacing the clamping roller, the upper clamping roller is pressed down, putting both the upper and lower clamping rollers into working condition. The connecting component is then fixedly installed on the existing bolt holes on both sides of the upper and lower roller seats. Maintain the upper and lower pinch rollers as a stable assembly for disassembly and assembly. Then, move the main body to the operating side of the pinch rollers and adjust its height so that the top surface of the displacement component is at the same height as the bottom surface of the lower roller seat. After disassembling and separating the upper and lower roller seats, move the displacement component relative to the main body to the bottom of the pinch rollers. Then, fix the lower roller seat and the displacement component together. Finally, move the displacement component supporting the pinch rollers again to remove the pinch rollers. Then, install the replacement pinch rollers. This avoids the need for hydraulic cylinder removal and other procedures. It also allows for the simultaneous removal and replacement of two working rollers, improving work efficiency. Furthermore, the tooling is more adaptable to the work area and offers greater adjustability and operability. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the tooling replacement provided in an embodiment of this application;

[0030] Figure 2 A flowchart illustrating the replacement method provided in this application embodiment;

[0031] In the figure: 100, main body; 101, first support part; 102, adjusting part; 103, constraint part; 200, displacement part; 201, guide rail; 202, stop part; 300, connecting part; 301, first fixing screw; 302, second fixing screw; 303, arc groove; 401, upper roller seat; 402, lower roller seat; 403, bearing housing. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0033] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a replacement fixture provided in an embodiment of this application. The replacement fixture includes a main body 100, a displacement component 200, and a connecting component 300, wherein:

[0034] The main body 100 is arranged under the pinch roller, and the height of the main body 100 is adjustable. The main body 100 serves as the positioning base for changing tooling, providing a relatively stable working base in complex working environments. It can be adaptively adjusted according to the actual relative position of the pinch roller, and the height of the main body 100 is matched with the relative position height of the pinch roller in the state to be replaced. On the one hand, it reduces the drop control of the pinch roller during disassembly and replacement, and on the other hand, it reduces the difficulty of operation and improves reliability.

[0035] like Figure 1 As shown, the displacement member 200 is movably disposed on the main body 100, and the displacement member 200 has a supporting area for supporting the pinch roller, and can support the pinch roller to reciprocate on the main body 100. The displacement member 200 is displaced relative to the main body 100. With the main body 100 as the base, the displacement member 200 dynamically connects the pinch roller and the main body 100 in complex working conditions, so that the main body 100 can complete the auxiliary operation of disassembling and replacing the pinch roller in more relative positions.

[0036] By actively displacing the displacement member 200 until the supporting area on the displacement member 200 is located under the pinch roller, after the pinch roller is completely detached, the pinch roller is supported by the displacement member 200, and the pinch roller is stably located in the supporting area and moves synchronously with the displacement member 200, which facilitates the corresponding movement operation according to the operation needs.

[0037] like Figure 1 As shown, the connector 300 is used to install on the upper roller seat 401 and the lower roller seat 402 to fix the upper roller seat 401 and the lower roller seat 402 together. Before the replacement operation of the pinch roller, the connector 300 can be connected and fixed using the original mounting holes on the upper roller seat 401 and the lower roller seat 402. After the installation operation of the connector 300 is completed, the upper roller seat 401 and the lower roller seat 402 are stably connected through the connector 300 and form a relatively stable whole for overall movement. This makes it easy for the pinch roller to maintain a stable relative working position and accurate working precision before, during and after replacement.

[0038] like Figure 1 As shown, it should be noted that multiple sets of connectors 300 can be provided, and are used to connect the upper roller seat 401 and lower roller seat 402 to be disassembled, and to connect the upper roller seat 401 and lower roller seat 402 to be installed. After the pinch roller to be disassembled is stably connected by the connectors 300, a stable disassembly operation can be performed. The upper roller seat 401 and lower roller seat 402 to be installed can be pre-connected by the connectors 300. Since the installation position of the connectors 300 is between the upper roller seat 401 and the lower roller seat 402... The original mounting holes on the seat 402 ensure that the connector 300 is fixed to the connection between the upper roller seat 401 and the lower roller seat 402. It also maintains the upper roller seat 401 and the lower roller seat 402 in the expected relative position during operation. After the pinch roller is replaced, the repositioning and calibration of the upper roller seat 401 and the lower roller seat 402 is eliminated, which greatly improves the replacement efficiency, reduces the calibration and debugging procedures between the upper roller seat 401 and the lower roller seat 402 and the drive equipment, and also improves the accuracy of operation.

[0039] In an optional embodiment, the working principle of the pinch roller replacement fixture in this application is as follows: The replacement fixture includes a main body 100, a displacement component 200, and a connecting component 300. The main body 100 is arranged under the pinch roller, and the height of the main body 100 is adjustable. The displacement component 200 is movably disposed on the main body 100, and the displacement component 200 has a supporting area for supporting the pinch roller, and can support the pinch roller to reciprocate on the main body 100. The connecting component 300 is installed on the upper roller seat 401 and the lower roller seat 402 to fix the upper roller seat 401 and the lower roller seat 402 together. When replacing the pinch roller, the upper pinch roller is pressed down, and the upper pinch roller and the lower pinch roller are respectively in working state. First, on both sides of the upper roller seat 401 and the lower roller seat 402... Connecting parts 300 are fixedly installed on the original bolt holes to keep the upper and lower pinch rollers as a stable assembly. Then, the main body 100 is moved to the operating side of the pinch roller and the height of the main body 100 is adjusted so that the top surface of the displacement part 200 is at the same height as the bottom surface of the lower roller seat 402. After disassembling and separating the upper roller seat 401 and the lower roller seat 402, the displacement part 200 is moved relative to the main body 100 to the bottom of the pinch roller. The lower roller seat 402 and the displacement part 200 are then fixedly connected. The pinch roller is then removed by moving the displacement part 200 that supports the pinch roller again. The replacement pinch roller is then installed. This avoids the operation of removing the hydraulic cylinder and other procedures. The two working rollers can be removed and replaced at the same time, which improves the work efficiency. The tooling is more adaptable to the work area and has better adjustability and operability.

[0040] like Figure 1 As shown, in an optional embodiment, the main body 100 includes a plurality of first support portions 101, the length of which is adapted to the working height of the pinch roller, so that the displacement member 200 can be moved under the pinch roller.

[0041] The arrangement of multiple first support parts 101 maintains the overall stability of the main body 100 after the relative position is erected, and facilitates the provision of a stable displacement foundation for the displacement component 200.

[0042] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with a plurality of adjustable members 102 arranged at intervals between each other. The adjustable members 102 are telescopically configurable to change the height of the main body 100 until the supporting area contacts the bottom surface of the pinch roller.

[0043] By adjusting the length of the adjusting member 102, the height of the main body 100 can be adjusted at different positions. In work areas where the flatness or other conditions do not meet the requirements, the main body 100 can be kept in the target position by controlling the adjustment through multiple adjusting members 102, and the supporting area can contact the pinch roller. This ensures that the pinch roller can be replaced more stably, thus improving applicability.

[0044] like Figure 1 As shown, in an optional embodiment, the adjusting member 102 is an adjusting screw, which is threadedly connected to one end of the first support 101 away from the main body 100.

[0045] Specifically, the adjusting member 102 with the adjusting screw can be rotated at different positions during operation to extend and retract. The adjustment amount is linearly controllable, making it more adaptable to the working environment and easier to operate.

[0046] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with a plurality of vertically arranged constraint members 103, and when the displacement member 200 supports the pinch roller, the constraint members 103 are blocked on both sides of the pinch roller.

[0047] Multiple constraint members 103 are vertically arranged on the main body 100. When the displacement member 200 supports the pinch roller and performs displacement operation synchronously, the constraint members 103 are blocked on both sides of the pinch roller to restrict the pinch roller from tilting or sliding as a whole, thus maintaining the overall dynamic stability.

[0048] like Figure 1 As shown, in an optional embodiment, a guide rail 201 is provided between the displacement member 200 and the main body member 100, and the displacement member 200 is disposed on the guide rail 201 and reciprocates along the extension direction of the guide rail 201.

[0049] The displacement component 200 is arranged on the guide rail 201 and moves back and forth, which improves the smoothness of movement and the stability of the displacement component 200. With the guide rail 201 set, the main body component 100 can be arranged in a smaller size, which facilitates flexible operation.

[0050] like Figure 1 As shown, in an optional embodiment, a stop 202 is provided on one side of the guide rail 201 to restrict the displacement member 200 from disengaging. The stop 202 further constrains the displacement member 200 to reciprocate in the extension direction of the guide rail 201, thereby improving reliability.

[0051] like Figure 1As shown, in an optional embodiment, the connector 300 is provided with a plurality of first fixing screws 301, and the displacement member 200 is provided with a plurality of second fixing screws 302. When the upper roller seat 401 and the lower roller seat 402 are in working state, the first fixing screws 301 and the second fixing screws 302 can respectively engage with the bolt holes on the upper roller seat 401 and the lower roller seat 402 for connection.

[0052] like Figure 1 As shown, the first fixing screw 301 fixes the connector 300 through the original bolt holes of the upper roller seat 401 and the lower roller seat 402 without damaging the basic structure of the upper roller seat 401 and the lower roller seat 402, and facilitates the accurate control of the relative position between the first roller seat and the second roller seat by the connector 300.

[0053] like Figure 1 As shown, the second fixing screw 302 connects and fixes the lower roller seat 402 and the displacement component 200, maintaining the reliability of the connection between the clamping roller and the displacement component 200, and allowing for quick connection and disassembly.

[0054] like Figure 1 As shown, in an optional embodiment, the connector 300 is provided with two arc grooves 303, and the inner wall of the arc grooves 303 is used to be attached to the outer peripheral surface of the bearing housing 403. When the connector 300 connects the upper roller seat 401 and the lower roller seat 402, the connector 300 is supported between the bearing housing 403 of the upper roller seat 401 and the lower roller seat 402.

[0055] When the connector 300 connects both the upper roller seat 401 and the lower roller seat 402, the connector 300 fixes the upper roller seat 401 and the lower roller seat 402 respectively. At the same time, the connector 300 also matches the bearing housing 403 through the arc groove 303 on the connector 300, thereby clamping the connector 300 between the bearing housings 403, improving the stability of the connector 300 during the connection process, reducing the shear force on the first fixing screw 301 on the connector 300, and improving reliability.

[0056] like Figure 1 , Figure 2 As shown, Figure 2 The flowchart illustrates the replacement method provided in this application embodiment. Based on the same inventive concept, this application also provides a method for replacing a pinch roller. The replacement method for the pinch roller is performed using the replacement fixture described above, and the replacement method includes the following steps:

[0057] The operation involves pressing down the upper and lower pinch rollers, and putting both the upper and lower pinch rollers into working condition.

[0058] Connecting parts 300 are fixedly installed on the existing bolt holes on both sides of the upper roller seat 401 and the lower roller seat 402 respectively.

[0059] Move the main body 100 to the operating side of the pinch roller and adjust the height of the main body 100 so that the top surface of the displacement member 200 is at the same height as the bottom surface of the lower roller seat 402.

[0060] Move the displacement component 200, and after the displacement component 200 moves to the bottom of the pinch roller, fix the lower roller seat 402 and the displacement component 200 together.

[0061] Move the displacement member 200 supporting the pinch roller again until the pinch roller moves to the target position;

[0062] The replacement pinch roller is placed on the displacement member 200, and the displacement member 200 is moved to the installation position of the pinch roller. After the displacement member 200 and the connecting member 300 are removed, the replacement of the pinch roller is completed.

[0063] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0064] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0065] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0068] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0069] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0070] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A tooling for changing pinch rollers, characterized in that, The tooling replacement includes: The main body is arranged under the pinch roller, and the height of the main body is adjustable. A displacement member is movably disposed on the main body, and the displacement member has a supporting area for supporting the pinch roller, and can support the pinch roller to reciprocate on the main body. A connector is used to be installed on the upper roller seat and the lower roller seat so as to fix the upper roller seat and the lower roller seat in place.

2. The tooling for changing the pinch rollers as described in claim 1, characterized in that: The main body includes a plurality of first support parts, the length of which is adapted to the working height of the pinch roller, so that the displacement member can be moved under the pinch roller.

3. The tooling for changing the pinch rollers as described in claim 2, characterized in that: The main body is provided with a plurality of adjustable members arranged at intervals. The adjustable members are telescopic to change the height of the main body until the supporting area contacts the bottom surface of the pinch roller.

4. The tooling for changing the pinch rollers as described in claim 3, characterized in that: The adjusting component is an adjusting screw, which is threaded to one end of the first support portion away from the main body.

5. The tooling for changing the pinch roller as described in claim 1, characterized in that: The main body is provided with a plurality of vertically arranged constraint members, and when the displacement member supports the pinch roller, the constraint members are blocked on both sides of the pinch roller.

6. The tooling for changing the pinch rollers as described in claim 1, characterized in that: A guide rail is provided between the displacement member and the main body member, and the displacement member is disposed on the guide rail and moves back and forth along the extension direction of the guide rail.

7. The tooling for changing the pinch roller as described in claim 6, characterized in that: One side of the guide rail is provided with a stop to prevent the displacement member from dislodging.

8. The tooling for changing the pinch roller as described in claim 1, characterized in that: The connector is provided with a plurality of first fixing screws, and the displacement member is provided with a plurality of second fixing screws. When the upper roller seat and the lower roller seat are in working state, the first fixing screws and the second fixing screw can respectively engage with the bolt holes on the upper roller seat and the lower roller seat.

9. The tooling for changing the pinch roller as described in claim 1, characterized in that: The connector has two arc grooves, and the inner wall of the arc grooves is used to be attached to the outer circumferential surface of the bearing housing. When the connector connects the upper roller seat and the lower roller seat, the connector is supported between the bearing housings of the upper roller seat and the lower roller seat.

10. A method for replacing pinch rollers, characterized in that: The method for replacing the pinch roller is performed using the tooling described in any one of claims 1-9, and the method includes the following steps: The operation involves pressing down the upper and lower pinch rollers, and putting both the upper and lower pinch rollers into working condition. Connecting parts are fixedly installed on the existing bolt holes on both sides of the upper and lower roller seats respectively; Move the main body to the operating side of the pinch roller and adjust the height of the main body so that the top surface of the displacement component is at the same height as the bottom surface of the lower roller seat. Move the displacement component, and after the displacement component moves to the bottom of the clamping roller, fix the lower roller seat and the displacement component together. Move the displacement component supporting the pinch roller again until the pinch roller moves to the target position; The replacement pinch roller is placed on the displacement member, and the displacement member is moved to the installation position of the pinch roller. After the displacement member and the connecting member are removed, the replacement of the pinch roller is completed.

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