Six-high reversing cold rolling mill

Abstract

The utility model discloses a six roll reversible cold rolling mill relates to cold rolling mill technical field, including two mounting panel, the inside of two mounting panels all is established adjustment groove, the top of two mounting panels all is established installation slot, be equipped with the roll binding mechanism between two mounting panels, the roll binding mechanism includes lower roll assembly and upper roll assembly, lower roll assembly and upper roll assembly use each other, lower roll assembly includes connecting block, the inside of mounting panel is fixedly connected with connecting block, one of two connecting blocks outside fixedly connected with motor, and three lower rolls are rotatably connected between two connecting blocks at equal intervals. The utility model discloses a six roll reversible cold rolling mill can adjust the thickness of the roll binding strip through the roll binding mechanism, and can realize the reverse rolling of the strip, and the roll binding is more accurate, fast, simple structure, and the practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling mill technology, and in particular to a six-roll reversible cold rolling mill. Background Technology

[0002] Cold rolling of metal sheets is a key process for improving their dimensional accuracy and mechanical properties. Six-roll mills, due to their roll system structure, have higher rigidity and stability and can effectively control the shape of the sheet. They are widely used in the production of high-precision thin sheet and strip. Reversible rolling, as an efficient and flexible production mode, is especially suitable for the market demand of multiple varieties and small batches.

[0003] Existing conventional six-roll cold rolling mills have significant shortcomings in adaptability. The adjustment of their roll gap usually relies on complex mechanical structure adjustments or manual shims, which is cumbersome, time-consuming, and difficult to achieve precise and rapid online settings. This directly affects the efficiency of changing production for different specifications and makes it difficult to meet the high requirements of modern production for flexibility. In addition, some mills lack reversible rolling function, making it impossible to achieve smooth and efficient reciprocating rolling of the workpiece. To address the above problems, we have introduced a six-roll reversible cold rolling mill. Utility Model Content

[0004] This utility model discloses a six-roll reversible cold rolling mill, which aims to solve the technical problems of the fact that the adjustment of the roll gap usually relies on complex mechanical structure adjustment or manual shims, which is cumbersome, time-consuming and difficult to achieve accurate and fast online setting. This directly affects the efficiency of changing production of different specifications of products, makes it difficult to meet the high requirements of modern production for flexibility, and some rolling mills lack reversible rolling function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A six-roll reversible cold rolling mill includes two mounting plates, each with an adjustment groove inside and a mounting groove on its top. A rolling mechanism is located between the two mounting plates. The rolling mechanism includes a lower roll assembly and an upper roll assembly, which cooperate with each other. The lower roll assembly includes a connecting block fixedly connected to the inside of the mounting plate. A motor is fixedly connected to the outer side of one of the two connecting blocks. Three lower rolls are rotatably connected at equal intervals between the two connecting blocks. One end of one of the lower rolls is fixedly connected to the output end of the motor, and the other ends of the three lower rolls are fixedly connected to a drive gear. A rotating shaft is rotatably connected at equal intervals to the outer side of the other mounting plate. A driven gear is fixedly connected to the outer side of the rotating shaft, and the driven gear meshes with the adjacent drive gear.

[0006] The roll forming mechanism allows for adjustment of the roll forming thickness and enables reverse rolling of the strip, resulting in more precise and faster roll forming. The structure is simple and highly practical.

[0007] In a preferred embodiment, the upper roll assembly includes a sliding groove symmetrically formed inside two mounting plates. A sliding rod is fixedly connected inside the sliding groove, and a lifting frame is slidably connected to the outside of the sliding rod. A cylinder is fixedly connected to the bottom of the inner wall of each of the two mounting grooves. The telescopic end of the cylinder is fixedly connected to the top of the lifting frame. An upper roll is rotatably connected between the two lifting frames at equal intervals.

[0008] The lifting frame, driven by a cylinder, moves precisely up and down along a slide bar within a sliding groove, causing the three upper rolling rolls to move up and down as a whole. This enables rapid and precise adjustment of the roll gap between the upper and lower rolling mill groups. This structure replaces cumbersome manual adjustment, offers a high degree of automation, and can quickly adapt to the needs of rolled products of different thicknesses, significantly improving production flexibility and efficiency.

[0009] In a preferred embodiment, a support frame is symmetrically fixedly connected between the two mounting plates, and a support roller is rotatably connected to the top of each of the two support frames.

[0010] The installation of support frames and support rollers can effectively support and guide the strip before and after rolling, preventing thin strips from sagging or deviating due to their own weight. This ensures that the strip enters and leaves the rolling area in a stable and correct manner, which helps to improve the stability of the rolling process and the quality of the finished product.

[0011] In a preferred embodiment, one of the two mounting plates, located on the side furthest from the motor, is fixedly connected to a protective cover, the interior of which is provided with equally spaced observation slots.

[0012] The protective cover encloses the gear transmission system, effectively preventing foreign objects from entering or operators from accidentally touching it, thus improving equipment safety. At the same time, the observation slot design allows for direct inspection of gear meshing and operation without opening the protective cover, facilitating routine maintenance.

[0013] In a preferred embodiment, two mounting plates are symmetrically fixedly connected to their bottom sides, and the fixed plates have mounting holes inside.

[0014] By incorporating a mounting plate with mounting holes at the bottom of the mounting plate, a stable and reliable mounting foundation is provided for the entire rolling mill. This simple design facilitates the secure fixing of the equipment to the foundation or frame using bolts and other fasteners, ensuring overall rigidity and operational stability under high-speed, heavy-load rolling conditions.

[0015] In a preferred embodiment, a controller is fixedly connected to the outer side of one of the two mounting plates, and the motor and cylinder are electrically connected to the controller.

[0016] By setting up a controller and electrically connecting it to the motor and cylinder, centralized automated control of the mill drive and roll gap adjustment was achieved.

[0017] The six-roll reversible cold rolling mill provided by this utility model has the following advantages: Firstly, the thickness of the rolled strip can be adjusted through the roll forming mechanism, and reverse rolling of the strip can be achieved, making the roll forming more precise and faster. The structure is simple and highly practical.

[0018] Secondly, the support frame and support rollers effectively support and guide the strip before and after rolling, preventing thin strips from sagging or deviating due to their own weight. This ensures the strip enters and leaves the rolling zone in a stable and correct manner, contributing to improved stability of the rolling process and finished product quality. The protective cover encloses the gear transmission system, effectively preventing foreign object intrusion or accidental contact by operators, thus improving equipment safety. Simultaneously, the observation slot design allows for direct inspection of gear meshing and operation without opening the protective cover, facilitating routine maintenance. A fixing plate with mounting holes at the bottom of the mounting plate provides a stable and reliable mounting foundation for the entire mill. This simple design allows for secure fixing of the equipment to the foundation or frame using bolts and other fasteners, ensuring overall rigidity and operational stability under high-speed, heavy-load rolling conditions. A controller, electrically connected to the motor and cylinder, enables centralized automated control of the mill drive and roll gap adjustment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a six-roll reversible cold rolling mill proposed in this utility model.

[0020] Figure 2 This is a three-dimensional schematic diagram of a six-roll reversible cold rolling mill proposed in this utility model.

[0021] Figure 3 This is a three-dimensional schematic diagram of the mounting plate of a six-roll reversible cold rolling mill proposed in this utility model.

[0022] Figure 4 This is a three-dimensional schematic diagram of the lower roll assembly of a six-roll reversible cold rolling mill proposed in this utility model.

[0023] Figure 5 This is a three-dimensional bottom view of the lower roll assembly of a six-roll reversible cold rolling mill proposed in this utility model.

[0024] Figure 6This is a three-dimensional schematic diagram of the upper roll assembly of a six-roll reversible cold rolling mill proposed in this utility model.

[0025] In the attached diagram: 1. Mounting plate; 2. Adjustment groove; 3. Mounting groove; 41. Connecting block; 42. Motor; 43. Lower roller; 44. Driven gear; 45. Rotating shaft; 46. Driving gear; 51. Sliding groove; 52. Slide rod; 53. Lifting frame; 54. Upper roller; 55. Cylinder; 6. Support frame; 7. Support roller; 8. Protective cover; 9. Observation groove; 10. Fixing plate; 11. Mounting hole; 12. Controller. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The six-roll reversible cold rolling mill disclosed in this utility model is mainly used in cold rolling mill applications.

[0028] Reference Figure 1 - Figure 6A six-roll reversible cold rolling mill includes two mounting plates 1, each with an adjustment groove 2 inside and a mounting groove 3 on its top. A rolling mechanism is provided between the two mounting plates 1, comprising a lower roll assembly and an upper roll assembly, which cooperate with each other. The lower roll assembly includes a connecting block 41 fixedly connected inside the mounting plate 1. A motor 42 is fixedly connected to the outer side of one of the two connecting blocks 41. Three lower rolls 43 are rotatably connected at equal intervals between the two connecting blocks 41. One end of one of the lower rolls 43 is fixedly connected to the output end of the motor 42, and the other ends of the three lower rolls 43 are fixedly connected to a drive gear 46. A rotating shaft 45 is rotatably connected at equal intervals to the outer side of the other mounting plate 1. A driven gear 44 is fixedly connected to the outer side of the rotating shaft 45, and the driven gear 44 meshes with the adjacent drive gear 46. The upper roller assembly includes a sliding groove 51, which is symmetrically opened inside the two mounting plates 1. A sliding rod 52 is fixedly connected inside the sliding groove 51, and a lifting frame 53 is slidably connected to the outside of the sliding rod 52. A cylinder 55 is fixedly connected to the bottom of the inner wall of each of the two mounting grooves 3. The telescopic end of the cylinder 55 is fixedly connected to the top of the lifting frame 53. The upper roller 54 is rotatably connected between the two lifting frames 53 at equal distances.

[0029] In this embodiment: The lifting frame 53 and its three upper rollers 54 are pushed down along the slide bar 52 to form a preset rolling channel with the three lower rollers 43. The strip is introduced into the rolling mill from the support roller 7 on one side. The motor 42 is started, and the motor 42 drives one of the lower rollers 43 to rotate. Through the meshing transmission of the driving gear 46 and the driven gear 44, the other two lower rollers 43 are driven to rotate synchronously, thereby clamping and pulling the strip through the rollers to complete one rolling pass. Through the set roll-binding mechanism, the thickness of the rolled strip can be adjusted, and the reverse rolling of the strip can be realized. The roll-binding is more precise and faster, the structure is simple, and the practicality is strong.

[0030] In the above technical solutions, considering that the adjustment of the roll gap usually relies on complex mechanical structure adjustment or manual shims, the process is cumbersome and time-consuming, and it is difficult to achieve accurate and rapid online setting. This directly affects the efficiency of changing production for different specifications of products, making it difficult to meet the high requirements of modern production for flexibility. In addition, some rolling mills lack reversible rolling functions. In order to solve these problems, the specific operation is as follows: Reference Figure 1 - Figure 6In a preferred embodiment, support frames 6 are symmetrically fixedly connected between two mounting plates 1, and support rollers 7 are rotatably connected to the top of each support frame 6. A protective cover 8 is fixedly connected to one of the two mounting plates 1 on the side away from the motor 42, and observation slots 9 are equidistantly provided inside the protective cover 8. Fixing plates 10 are symmetrically fixedly connected to both sides of the bottom of the two mounting plates 1, and mounting holes 11 are provided inside the fixing plates 10. A controller 12 is fixedly connected to the outer side of one of the two mounting plates 1, and the motor 42 and cylinder 55 are electrically connected to the controller 12.

[0031] In this embodiment, the support frame 6 and the support roller 7 effectively support and guide the strip before and after rolling, preventing thin strips from sagging or deviating due to their own weight. This ensures the strip enters and leaves the rolling area in a stable and correct posture, contributing to improved stability of the rolling process and finished product quality. The protective cover 8 encloses the gear transmission system, effectively preventing foreign object intrusion or accidental contact by operators, thus improving equipment safety. Simultaneously, the observation slot 9 allows for direct inspection of gear meshing and operation without opening the protective cover 8, facilitating routine maintenance. A fixing plate 10 with mounting holes 11 at the bottom of the mounting plate 1 provides a stable and reliable mounting foundation for the entire rolling mill. This simple design allows for secure fixing of the equipment to the foundation or frame using bolts and other fasteners, ensuring overall rigidity and operational stability under high-speed, heavy-load rolling conditions. A controller 12 is installed and electrically connected to the motor 42 and cylinder 55, enabling centralized automated control of the rolling mill drive and roll gap adjustment.

[0032] Working principle: First, the required roll gap value is set by the controller 12. The controller 12 instructs the cylinder 55 to move, pushing the lifting frame 53 and its three upper rolls 54 down along the slide bar 52 to form a preset rolling channel with the three lower rolls 43. The strip is introduced into the rolling mill from the support roll 7 on one side. The motor 42 is started, and the motor 42 drives one of the lower rolls 43 to rotate. Through the meshing transmission of the drive gear 46 and the driven gear 44, the other two lower rolls 43 are driven to rotate synchronously, thereby clamping and pulling the strip through the rolls to complete one rolling. When the tail of the strip passes through, the motor 42 reverses under the instruction of the controller 12, which realizes the reverse rolling of the strip (reversible rolling). This process is repeated until the strip reaches the target thickness.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A six-roll reversible cold rolling mill, comprising two mounting plates (1), characterized in that: The two mounting plates (1) are provided with adjustment grooves (2) inside, and the top of the two mounting plates (1) is provided with mounting grooves (3). A rolling mechanism is provided between the two mounting plates (1). The rolling mechanism includes a lower rolling assembly and an upper rolling assembly, and the lower rolling assembly and the upper rolling assembly are used in cooperation with each other. The lower roll assembly includes a connecting block (41), which is fixedly connected to the inside of the mounting plate (1). A motor (42) is fixedly connected to the outer side of one of the two connecting blocks (41). Three lower rolls (43) are rotatably connected between the two connecting blocks (41) at equal distances. One end of one of the lower rolls (43) is fixedly connected to the output end of the motor (42). The other ends of the three lower rolls (43) are all fixedly connected to a drive gear (46). A rotating shaft (45) is rotatably connected to the outer side of the other of the two mounting plates (1) at equal distances. A driven gear (44) is fixedly connected to the outer side of the rotating shaft (45). The driven gear (44) and the adjacent drive gear (46) are meshed together.

2. The six-roll reversible cold rolling mill according to claim 1, characterized in that: The upper roller assembly includes a sliding groove (51), which is symmetrically opened inside the two mounting plates (1). A sliding rod (52) is fixedly connected inside the sliding groove (51), and a lifting frame (53) is slidably connected to the outside of the sliding rod (52). A cylinder (55) is fixedly connected to the bottom of the inner wall of the two mounting grooves (3). The telescopic end of the cylinder (55) is fixedly connected to the top of the lifting frame (53). The upper roller (54) is rotatably connected between the two lifting frames (53) at equal distances.

3. A six-roll reversible cold rolling mill according to claim 1, characterized in that: A support frame (6) is symmetrically fixed between the two mounting plates (1), and a support roller (7) is rotatably connected to the top of each of the two support frames (6).

4. A six-roll reversible cold rolling mill according to claim 1, characterized in that: A protective cover (8) is fixedly connected to one of the two mounting plates (1) on the side away from the motor (42), and observation slots (9) are provided at equal intervals inside the protective cover (8).

5. A six-roll reversible cold rolling mill according to claim 1, characterized in that: Two mounting plates (1) are symmetrically fixedly connected to the bottom sides of each other with mounting plates (10), and mounting holes (11) are provided inside the mounting plates (10).

6. A six-roll reversible cold rolling mill according to claim 1, characterized in that: A controller (12) is fixedly connected to the outer side of one of the two mounting plates (1), and the motor (42) and cylinder (55) are electrically connected to the controller (12).

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