Roll changing device

Abstract

The utility model discloses a roller replacing device. The technical problem that existing roller replacing operation is low in efficiency is solved. The device comprises a mounting base and a roller changing assembly. The roller changing assembly comprises two clamping structures, and the two clamping structures are arranged in parallel. Each clamping structure comprises a connecting plate and a clamping plate. The clamping plate is connected with the end, away from the mounting base, of the connecting plate. The clamping plate is provided with a clamping groove used for being matched with the working roller, and the clamping groove is perpendicular to the installation base. And when the mounting seat moves, the clamping structure drives the working roll to move through the clamping groove. According to the roller replacing device, the to-be-replaced roller can be directly taken out, rapid moving and replacing of the working roller are achieved in a mechanical mode, and the production efficiency is remarkably improved. And after the to-be-replaced roller is completely separated from the rack, no roller is left in the rack, so that the rack of the finishing machine is convenient to clean, and the inside of the rack is convenient to maintain and overhaul.

Description

Technical Field

[0001] This application belongs to the field of roller changing technology, and specifically relates to a roller changing device. Background Technology

[0002] A galvanizing finishing machine is a roll-changing device used to improve the surface quality and smoothness of finished products. The machine includes a frame assembly, roll system assembly, inlet and outlet auxiliary roll assemblies, work roll changing device, support roll changing device, transmission device, inlet wet finishing device, outlet high-pressure water cleaning device, servo cylinders, rolling line adjustment device, hydraulic system, water system, and electrical control system. Because the work rolls operate under high pressure and high speed for extended periods, they are easily worn down. When they wear down to a certain extent, they can no longer be used and must be re-ground, with the precise roll diameter determined after re-grinding.

[0003] The existing galvanizing finishing machine's roll changing device is a one-way roll changing device, which can only use a new work roll to push the old work roll out of the frame. However, during production line maintenance, if the work roll inside the finishing machine frame cannot be removed from the finishing machine frame, it is impossible to clean the finishing machine frame and perform maintenance and repair work inside the frame. Using tools such as lifting slings for roll removal is inefficient, poses a risk of cutting the slings, and cannot completely remove the work roll to the roll changing preparation position. Therefore, it is necessary to add a roll removal device to the existing finishing machine's roll changing system. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a roller changing device for moving the position of the working roller of the finishing machine. The device can stably clamp the working roller and drive the working roller to move when the mounting base moves, so as to realize convenient replacement of the working roller.

[0005] The technical solution adopted to achieve the purpose of this application is as follows: This utility model discloses a roller changing device, comprising:

[0006] Mounting base;

[0007] A roller changing assembly includes two clamping structures arranged in parallel. Each clamping structure includes a connecting plate and a clamping plate. The connecting plate is connected to the mounting base, and the clamping plate is connected to the end of the connecting plate opposite to the mounting base. The clamping plate is provided with a clamping groove for cooperating with the work roller, and the clamping groove is arranged perpendicular to the mounting base.

[0008] When the mounting base moves, the clamping structure drives the working roller to move through the clamping groove.

[0009] In some embodiments, the roller changing assembly is configured as two sets, the two sets of roller changing assemblies are spaced apart along the height direction of the mounting base, and the distance between the two sets of roller changing assemblies is adapted to the distance between the two working rollers in the finishing machine.

[0010] In some embodiments, the clamping plate includes a connecting strip and two clamping strips. The connecting strip is connected to the connecting plate, and the two clamping strips are located at both ends of the connecting strip and are arranged in parallel. A clamping groove is formed between the two clamping strips, and the clamping strips are arranged in parallel with the mounting base.

[0011] In some embodiments, the connecting plate is detachably coupled to the mounting base.

[0012] In some embodiments, the mounting base is provided with a first mounting hole, the connecting plate is provided with a second mounting hole, the connecting plate and the mounting base are connected by bolts, and the bolts pass through the first mounting hole and the second mounting hole.

[0013] In some embodiments, the first mounting hole is arranged parallel to the mounting base.

[0014] In some embodiments, the mounting base is provided with a protrusion, and the first mounting hole is disposed on the protrusion.

[0015] In some embodiments, the protrusion includes a support surface, and the connecting plate includes an abutment surface for engaging with the support surface.

[0016] In some embodiments, each of the connecting plates is connected to the mounting base by at least two of the bolts.

[0017] In some embodiments, the connecting plate and the clamping plate are manufactured by integral molding.

[0018] As can be seen from the above technical solution, the roller changing device disclosed in this application includes a mounting base and a roller changing assembly. The roller changing assembly includes two clamping structures, which are arranged in parallel. Each clamping structure includes a connecting plate and a clamping plate. The connecting plate is connected to the mounting base, and the clamping plate is connected to the end of the connecting plate opposite to the mounting base. The clamping plate is provided with a clamping groove for cooperating with the work roller, and the clamping groove is arranged perpendicular to the mounting base. When the mounting base moves, the clamping structure drives the work roller to move through the clamping groove.

[0019] The roller changing device disclosed in this application can directly remove the roller to be replaced, achieving rapid movement and replacement of the work roller through mechanization, significantly improving production efficiency. After the roller to be replaced is completely separated from the frame, no roller remains in the frame, thus facilitating the cleaning of the finishing machine frame and maintenance and repair work within the frame. Attached Figure Description

[0020] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Figure 1 This is a schematic diagram of a roller changing device in one or more embodiments of this application;

[0022] Figure 2 for Figure 1 A schematic diagram of the mounting bracket;

[0023] Figure 3 for Figure 1 Schematic diagram of the clamping structure;

[0024] Figure 4 for Figure 1 A schematic diagram of the central protrusion.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Mounting base, 110-Protrusion, 111-First mounting hole, 112-Supporting surface, 200-Clamping structure, 210-Connecting plate, 211-Second mounting hole, 212-Abutting surface, 220-Clamping plate, 221-Clamping groove, 222-Connecting strip, 223-Clamping strip. Detailed Implementation

[0027] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] The existing finishing mill uses a one-way roll changing method (Side shifting car). There is a roll changing trolley on both the operating and drive sides of the finishing mill, with two sets of roll placement positions. The exit side of the drive-side trolley is the position for placing the new roll. When changing rolls, all the hydraulic cylinders locking the working rolls of the finishing mill are fully opened. The roll changing pusher on the drive side of the finishing mill pushes the new working roll from the drive-side trolley into the frame. The new working roll is then used to push out the replacement roll from the finishing mill and place it on the operating-side roll changing trolley for storage.

[0031] The existing galvanizing finishing machine's roll changing device is unidirectional, only allowing the old work roll to be pushed out of the frame using a new one; it lacks a roll removal function. During production line maintenance, if the work rolls inside the finishing machine frame cannot be removed, cleaning and maintenance work within the frame is impossible. During routine maintenance, the roll removal operation uses a sling device to hold the push plate to the work roll drive-side bearing seat, which is inefficient because the work roll cannot effectively contact the push plate, preventing it from being positioned precisely for roll changing.

[0032] This utility model discloses a roller changing device that can solve the technical problem of low efficiency in existing roller changing operations, thereby efficiently and stably clamping and moving the work roller of the finishing machine, facilitating the replacement and maintenance of the work roller, and improving production efficiency.

[0033] The technical solution of this application will be described in detail below through specific embodiments:

[0034] See Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides a roller changing device, which includes a mounting base 100 and a roller changing assembly. The roller changing assembly includes two clamping structures 200, which are arranged in parallel. Each clamping structure 200 includes a connecting plate 210 and a clamping plate 220. The connecting plate 210 is connected to the mounting base 100, and the clamping plate 220 is connected to the end of the connecting plate 210 opposite to the mounting base 100. The clamping plate 220 is provided with a clamping groove 221 for cooperating with a work roller, and the clamping groove 221 is arranged perpendicularly to the mounting base 100. When the mounting base 100 moves, the clamping structure 200 drives the work roller to move through the clamping groove 221.

[0035] Existing roll changing methods often require manual labor and a replacement roll to remove the roll to be replaced, which is time-consuming and inefficient. The roll changing device disclosed in this embodiment can directly remove the roll to be replaced, achieving rapid movement and replacement of the work roll through mechanization, significantly improving production efficiency. After the roll to be replaced is completely separated from the frame, no roll remains in the frame, thus facilitating cleaning of the finishing machine frame and maintenance and repair work within the frame.

[0036] In one embodiment, two sets of roller changing assemblies are provided, spaced apart along the height direction of the mounting base 100, and the distance between the two sets of roller changing assemblies is adapted to the distance between the two work rollers in the finishing machine. Compared to the traditional method of changing only one work roller at a time, this design significantly improves work efficiency and reduces the total time required for roller changing.

[0037] Because the distance between the two sets of roller changing assemblies is matched to the distance between the two work rollers in the finishing machine, it can be ensured that the two sets of roller changing assemblies can accurately align and clamp the corresponding work rollers when changing work rollers. This design makes operation more convenient and reduces the extra time caused by inaccurate alignment.

[0038] The parallel arrangement and precise distance adjustment of the two sets of roll changing assemblies help maintain the stability of the entire roll changing device. This stability ensures smooth movement of the work roll during the changeover process, preventing potential damage to other components of the finishing machine.

[0039] By adjusting the distance between the two sets of roller changing assemblies, this device can accommodate work rolls of different specifications and sizes. This flexibility allows the roller changing device to be widely used in various types and specifications of finishing machines, improving its versatility and practicality.

[0040] In one embodiment, the clamping plate 220 includes a connecting strip 222 and two clamping strips 223. The connecting strip 222 is connected to the connecting plate 210. The two clamping strips 223 are located at both ends of the connecting strip 222 and are arranged in parallel. A clamping groove 221 is formed between the two clamping strips 223. The clamping strips 223 are arranged in parallel with the mounting base 100.

[0041] A clamping groove 221 is formed between two parallel clamping bars 223, designed to tightly enclose the work roll. Because the clamping bars 223 are parallel to the mounting base 100, the clamping groove 221 maintains close contact with the work roll as the mounting base 100 moves, thus ensuring the stability of the work roll during movement. This design reduces the possibility of the work roll shaking or falling off during replacement, improving operational safety.

[0042] The width of the clamping groove 221 can be adjusted according to the diameter of the work roll. Since the clamping bars 223 are arranged in parallel, different diameter work rolls can be accommodated by changing the distance between the two clamping bars 223. This design makes the roll changing device widely applicable and suitable for use in finishing machines of different specifications and models.

[0043] In one embodiment, the connecting plate 210 is detachably coupled to the mounting base 100. This detachable coupling design allows for easy separation and reassembly of the two components. This is particularly important for routine maintenance, replacement of worn parts, or equipment upgrades. For example, when certain components on the connecting plate 210 or mounting base 100 wear or become damaged due to prolonged use, these components can be replaced individually without replacing the entire device, thus reducing maintenance costs and time.

[0044] In one embodiment, the mounting base 100 is provided with a first mounting hole 111, and the connecting plate 210 is provided with a second mounting hole 211. The connecting plate 210 and the mounting base 100 are connected by bolts, and the bolts pass through the first mounting hole 111 and the second mounting hole 211.

[0045] Bolted connections are a widely used mechanical connection method, characterized by high connection strength, good stability, and the ability to withstand significant tensile and shear forces. By tightly connecting the connecting plate 210 to the mounting base 100 with bolts, the stability and reliability of the roller changing device during operation are ensured, preventing equipment failures or safety accidents caused by loose connections.

[0046] Bolted connections are a low-cost connection method. Compared to other connection methods (such as welding and riveting), bolted connections do not require special equipment and processes, thus significantly reducing manufacturing costs. Furthermore, the ease of purchasing and replacing bolts and nuts also reduces maintenance costs.

[0047] In one embodiment, the first mounting hole 111 is arranged parallel to the mounting base 100. When the first mounting hole 111 is parallel to the mounting base 100, the bolt can be inserted into the first mounting hole 111 in a stable direction parallel to the mounting base 100. This design ensures that the connection between the connecting plate 210 and the mounting base 100 is smooth and uniform, avoiding instability or loosening of the connection due to angular deviation. This stability is crucial for the roll changing device, as it needs to withstand the weight of the work roll and the dynamic load during movement.

[0048] The parallel arrangement of the first mounting holes 111 makes the installation process more intuitive and simple. Operators can more easily determine the direction of bolt insertion and quickly align the connecting plate 210 with the mounting base 100. This design reduces complexity and uncertainty in the installation process and improves work efficiency.

[0049] In one embodiment, a protrusion 110 is provided on the mounting base 100, and a first mounting hole 111 is provided on the protrusion 110.

[0050] The design of the protrusion 110 increases the contact area between the mounting base 100 and the connecting plate 210. This design further enhances the strength and stability of the connection point, especially when the first mounting hole 111 is located on the protrusion 110. When bolts pass through the first mounting hole 111 to secure the connecting plate 210 to the mounting base 100, the protrusion 110 provides additional support, helping to resist working loads and vibrations, ensuring a firm and stable connection.

[0051] The design of the first mounting hole 111 on the protrusion 110 helps optimize stress distribution. Under working loads, stress is distributed more evenly on the protrusion 110 and the connecting plate 210, reducing the risk of stress concentration. This design helps extend the service life of connectors (such as bolts) and reduces the likelihood of connection failure due to stress concentration.

[0052] In one embodiment, the protrusion 110 includes a support surface 112, and the connecting plate 210 includes an abutment surface 212 for engaging with the support surface 112. The support surface 112 on the protrusion 110 and the abutment surface 212 on the connecting plate 210 engage to form a mechanically locked connection. This design increases the contact area between the connecting plate 210 and the protrusion 110 (typically connected to the mounting base 100), thereby improving the strength and stability of the connection. This enhanced connection strength helps ensure the stability and reliability of the equipment when the roll changing device bears the weight and dynamic loads of the work roll.

[0053] In one embodiment, each connecting plate 210 is connected to the mounting base 100 by at least two bolts.

[0054] Using at least two bolts to connect the connecting plate 210 and the mounting base 100 significantly increases the connection strength between them. This design ensures that the connection will not loosen or break when the roll changing device is subjected to the weight and dynamic loads of the work roll. At the same time, the distributed layout of multiple bolts also helps to reduce the stress on individual bolts, improving the durability and service life of the connection.

[0055] In one embodiment, the connecting plate 210 and the clamping plate 220 are integrally formed.

[0056] The one-piece molding technology, through automated production lines, automates processes from raw material mixing, molding, and curing to trimming and polishing. This production method significantly reduces labor costs and minimizes errors caused by human operation, thereby improving overall production efficiency. During the processing of the connecting plate 210 and the clamping plate 220, the one-piece molding technology ensures continuity and consistency in the manufacturing process, reduces processing time and production cycles, and enhances the connection strength between the protrusion 110 and the mounting base 100.

[0057] In one embodiment, the roller changing device includes a mounting base 100 and a roller changing assembly. The mounting base 100 is a polygonal plate structure (e.g., hexagonal or rectangular) used to fix and support the entire roller changing device. The roller changing assembly includes two parallel clamping structures 200, each clamping structure 200 including a connecting plate 210 and a clamping plate 220. The connecting plate 210 is a rectangular plate structure and is connected to the mounting base 100 by bolts. The clamping plate 220 is an L-shaped structure, including a connecting strip 222 and two parallel clamping strips 223, with the two clamping strips 223 located at both ends of the connecting strip 222, forming a clamping groove 221. The width of the clamping groove 221 is adapted to the diameter of the work roller to ensure stable clamping of the work roller. When the mounting base 100 moves, the clamping structures 200 drive the work roller to move through the clamping groove 221.

[0058] In one embodiment, the roller changing assemblies are configured in two sets, spaced apart along the height of the mounting base 100. This allows for the simultaneous movement of two work rollers in a single operation, improving work efficiency. Simultaneously, each connecting plate 210 is connected to the mounting base 100 by four bolts, ensuring the stability of the clamping structure 200.

[0059] Through the above embodiments, this application has the following beneficial effects or advantages: The roller changing device disclosed in this application has a simple and compact structure, is easy to install and disassemble, and can directly remove the roller to be replaced. Through mechanization, it realizes rapid movement and replacement of the work roller, significantly improving production efficiency. It can stably clamp the work roller and drive the work roller to move when the mounting base 100 moves, realizing convenient replacement of the work roller. It protects the roller surface of the work roller, avoids damage to the roller surface caused by improper roller removal, and extends the service life of the work roller. It takes into account the spatial distance between equipment, avoiding misoperation and damage caused by equipment interference.

[0060] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0061] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0062] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0063] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0067] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A roller changing device for moving the position of the work roller of a finishing machine, characterized in that, include: Mounting base; A roller changing assembly includes two clamping structures arranged in parallel. Each clamping structure includes a connecting plate and a clamping plate. The connecting plate is connected to the mounting base, and the clamping plate is connected to the end of the connecting plate opposite to the mounting base. The clamping plate is provided with a clamping groove for cooperating with the work roller, and the clamping groove is arranged perpendicular to the mounting base. When the mounting base moves, the clamping structure drives the working roller to move through the clamping groove.

2. The roller changing device according to claim 1, characterized in that, The roller changing assembly is configured in two sets, with the two sets of roller changing assemblies spaced apart along the height direction of the mounting base, and the distance between the two sets of roller changing assemblies is adapted to the distance between the two working rollers in the finishing machine.

3. The roller changing device according to claim 1, characterized in that, The clamping plate includes a connecting strip and two clamping strips. The connecting strip is connected to the connecting plate. The two clamping strips are located at both ends of the connecting strip and are arranged in parallel. A clamping groove is formed between the two clamping strips. The clamping strips are arranged in parallel with the mounting base.

4. The roller changing device according to any one of claims 1 to 3, characterized in that, The connecting plate and the mounting base are detachably coupled.

5. The roller changing device according to claim 4, characterized in that, The mounting base is provided with a first mounting hole, and the connecting plate is provided with a second mounting hole. The connecting plate and the mounting base are connected by bolts, and the bolts pass through the first mounting hole and the second mounting hole.

6. The roller changing device according to claim 5, characterized in that, The first mounting hole is arranged parallel to the mounting base.

7. The roller changing device according to claim 5, characterized in that, The mounting base is provided with a protrusion, and the first mounting hole is provided in the protrusion.

8. The roller changing device according to claim 7, characterized in that, The protrusion includes a support surface, and the connecting plate includes an abutment surface for engaging with the support surface.

9. The roller changing device according to claim 5, characterized in that, Each of the connecting plates is connected to the mounting base by at least two of the bolts.

10. The roller changing device according to claim 1, characterized in that, The connecting plate and the clamping plate are manufactured by integral molding.

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