Copper strip breakdown mill with adjustable roll gap

Abstract

The utility model discloses a copper strip cogging equipment of roll gap adjustable, include: frame and vertical board, be equipped with limit cavity on vertical board, roll assembly, it includes fixed roll system and adjustment roll system, fixed roll system includes fixed roll and drive motor, adjustment roll system includes adjustable roll and sets up adjustment mechanism on vertical board, adjustment mechanism includes servo motor and sliding block, first mounting hole and second mounting hole are seted up on sliding block, form the internal thread in first mounting hole, for the output shaft of servo motor is spun into, constitute the screw nut pair, the bearing is embedded in second mounting hole, for the roll neck of adjustable roll is installed and realizes rotary support after going out limit cavity, wherein, servo motor can drive sliding block and moves along the vertical direction to adjust adjustable roll and the rolling gap of fixed roll, this equipment utilizes servo motor to realize roll gap adjustment function, and the adjustment precision is higher, and the response is more quick, and can better keep the roll stability.

Description

Technical Field

[0001] This utility model relates to the field of metal rolling equipment technology, and in particular to a copper strip blanking equipment with adjustable roll gap. Background Technology

[0002] In the field of non-ferrous metal processing, the roughing and rolling of copper and copper alloy strips is a fundamental process for subsequent finishing, and its quality directly affects the shape, dimensional accuracy, and mechanical properties of the final product. The roughing process mainly involves pressing and deforming the ingot or hot-rolled billet using a pair of relatively rotating rolls. During this process, the precise setting and stable maintenance of the roll gap are key parameters to ensure the uniformity of strip thickness and surface quality.

[0003] In existing technologies, rolling mills used for copper strip billet preparation typically possess basic roll gap adjustment capabilities. Common adjustment mechanisms may employ manual screws, worm gears, or ordinary hydraulic jacks, achieving coarse adjustment of the gap by driving the displacement of one side of the bearing housing or roll journal. These methods have demonstrated limitations in long-term use. For example, manual adjustment is inefficient and relies heavily on operator experience, making precise quantitative control difficult. Some mechanical transmission mechanisms may exhibit backlash, affecting setting accuracy. Ordinary hydraulic adjustments may experience minor leaks or pressure fluctuations during prolonged pressure holding, leading to changes in the rolling gap and affecting the consistency of product thickness.

[0004] Therefore, it is necessary to design a billet-making equipment with higher adjustment precision, faster response, and better ability to maintain the stability of the rolls. Utility Model Content

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a copper strip blanking device with adjustable roll gap. This device utilizes a servo motor to achieve roll gap adjustment, resulting in higher adjustment precision, faster response, and better maintenance of roll stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a copper strip blanking device with adjustable roll gap, comprising:

[0008] The frame includes two opposing upright plates; each upright plate is provided with a limiting cavity.

[0009] A roll assembly for rolling copper strip; the roll assembly includes a fixed roll system and an adjustable roll system.

[0010] The fixed roller system includes fixed rollers rotatably supported on the vertical plate by bearings, and a drive motor for driving the fixed rollers;

[0011] The adjustable roller system includes an adjustable roller and an adjustment mechanism disposed on the vertical plate; the adjustment mechanism includes a servo motor fixed to the vertical plate and a slider that forms a lead screw and nut pair transmission connection with the output shaft of the servo motor; the slider has a first mounting hole and a second mounting hole; the first mounting hole has an internal thread for the output shaft of the servo motor to be screwed in to form the lead screw and nut pair; the second mounting hole has a bearing embedded in it for the adjustable roller neck to be installed after passing through the limiting cavity and to realize rotational support;

[0012] in,

[0013] The servo motor can drive the slider to move vertically to adjust the rolling gap between the adjustable roll and the fixed roll.

[0014] Furthermore, the slider has a groove on the side facing the upright plate;

[0015] The upright plate is provided with a slide rail on the side facing the slider;

[0016] The slide rail and the slide groove form a sliding fit to guide the slider.

[0017] Furthermore, the slide rail is provided with a plurality of first threaded holes spaced apart along the vertical direction;

[0018] The slider is provided with a second threaded hole;

[0019] After the adjustable roll is adjusted to the predetermined height, the second threaded hole is coaxially aligned with one of the first threaded holes and connected by a fastening bolt.

[0020] Furthermore, the sliding surface of the groove is coated with a polytetrafluoroethylene coating with a thickness of 0.5 mm to 2 mm.

[0021] Furthermore, the adjustment mechanism is provided on both of the opposing upright plates.

[0022] Furthermore, the adjustment mechanism also includes a controller; the controller is signal-connected to the two servo motors; the controller is configured to send synchronous drive signals to the two servo motors to cause the two ends of the adjustable roll to rise and fall synchronously.

[0023] Furthermore, the limiting cavity and the neck of the adjustable roll are in clearance fit, with a single-sided clearance value ranging from 0.05mm to 0.5mm.

[0024] This utility model has at least the following advantages or beneficial effects:

[0025] This invention employs a servo motor-driven lead screw and nut assembly. The servo motor provides precise angular displacement control, and the lead screw and nut assembly converts rotary motion into linear motion and possesses self-locking characteristics. It also utilizes a slider and its bearing holes to support the neck of the adjustable roll, providing stable rotational support for the roll. Overall, this invention enables precise and controllable adjustment of the rolling gap and helps maintain its stability during the rolling process.

[0026] This invention employs a structure where the controller is connected to the servo motors on both sides via signals. The controller can send unified commands to both motors. Overall, this invention can coordinate the operation of the two servo motors, enabling the adjustable roll to rise and fall synchronously at both ends. This helps maintain the horizontal state of the roll system during dynamic adjustments and avoids potential equipment jamming or strip surface scratches caused by asynchrony at both ends. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.

[0028] Figure 1 A schematic diagram of a copper strip blanking equipment with adjustable roll gap;

[0029] Figure 2 This is a schematic diagram of the frame structure;

[0030] Figure 3 This is a schematic diagram of the roll assembly structure;

[0031] Figure 4 Left view of the roll assembly structure;

[0032] Figure 5 This is a schematic diagram of the adjustment mechanism.

[0033] Figure label:

[0034] 1-Frame; 11-Upright plate; 111-Limiting cavity; 112-Slide rail;

[0035] 2-Roll assembly; 21-Fixed roll system; 211-Fixed roll; 22-Adjustable roll system; 221-Adjustable roll; 222-Adjusting mechanism; 223-Servo motor; 224-Slider; 2241-First mounting hole; 2242-Second mounting hole; 2243-Groove. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limitations on this utility model.

[0040] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0041] The embodiments of this utility model will be described in detail below.

[0042] This utility model discloses a copper strip blanking device with adjustable roll gap.

[0043] Figure 1 This is a schematic diagram of a copper strip blanking equipment with adjustable roll gap.

[0044] The core components of the equipment include a frame 1, a roll assembly 2, and a related adjustment mechanism 222.

[0045] Figure 2 This is a schematic diagram of the frame 1 structure.

[0046] The frame 1 constitutes the main support structure of the equipment, and its function is to provide a stable mounting base for all moving and functional parts.

[0047] In this embodiment, the frame 1 is mainly composed of two relatively parallel upright plates 11. In other embodiments, the frame 1 may also adopt an integral box structure or a portal frame structure. The upright plates 11 are key components of the frame 1, and their function is to directly support the roll assembly 2.

[0048] In this embodiment, the upright plate 11 is a rectangular thick steel plate with a thickness ranging from 80 to 150 mm; in other embodiments, the upright plate 11 may also be a trapezoidal or a composite structure with reinforcing ribs.

[0049] A limiting cavity 111 is provided on the vertical plate 11. The function of the limiting cavity 111 is to provide vertical movement space for the neck of the adjustable roll 221, while restricting its displacement in the horizontal plane. The limiting cavity 111 is usually made by milling or electrical discharge machining.

[0050] Figure 3 This is a schematic diagram of the structure of roll assembly 2; Figure 4 This is a left view of the structure of roll assembly 2.

[0051] The roll assembly 2 is the core component that directly performs the copper strip rolling function. Its function is to plastically deform the copper strip billet through a pair of relatively rotating rolls.

[0052] The roll assembly 2 includes a fixed roll system 21 and an adjustable roll system 22.

[0053] The fixed roll system 21 includes a fixed roll 211 and a drive motor (not shown in the figure). The fixed roll 211 is rotatably supported on the vertical plate 11 by a bearing, and its function is to provide a reference roll surface during the rolling process. The drive motor is connected to the fixed roll 211 through a gearbox and a universal coupling, and its function is to provide power for the rolling process.

[0054] The adjusting roller system 22 includes adjustable rollers 221 and adjusting mechanism 222.

[0055] The adjustable roll 221 is used in conjunction with the fixed roll 211 to form a variable rolling gap. In this embodiment, the roll body lengths of the adjustable roll 221 and the fixed roll 211 are equal; in other embodiments, the roll body length of the adjustable roll 221 may be slightly longer than that of the fixed roll 211, with the length difference controlled within the range of 10-20 mm.

[0056] The neck of the adjustable roll 221 extends through the limiting cavity 111 on the upright plate 11. The limiting cavity 111 and the neck of the adjustable roll 221 are in a clearance fit, which limits the swaying of the roll neck without interfering with roll adjustment. In this embodiment, the single-sided clearance value is set to 0.1 mm; in other embodiments, the single-sided clearance value can also be selected between 0.05 mm and 0.5 mm according to the accuracy requirements. A smaller clearance is used when higher positioning accuracy is required, and a larger clearance is used when higher movement flexibility is required. This fit ensures smooth movement of the adjustable roll 221 and provides necessary radial constraint, effectively limiting the radial runout of the roll during rolling.

[0057] Figure 5 This is a schematic diagram of the adjustment mechanism 222.

[0058] The adjusting mechanism 222 is a key component of this invention for achieving precise gap adjustment. Its function is to accurately control the relative position between the adjustable roll 221 and the fixed roll 211. The adjusting mechanism 222 includes a servo motor 223 and a slider 224.

[0059] The servo motor 223 is fixedly mounted on the vertical plate 11 by high-strength bolts, and its function is to provide precise and controllable rotational motion.

[0060] The slider 224 and the output shaft of the servo motor 223 form a lead screw and nut transmission connection, which converts the rotational motion of the servo motor 223 into precise linear motion. The slider 224 has a first mounting hole 2241 and a second mounting hole 2242.

[0061] The first mounting hole 2241 has a precision internal thread, which is used to form a lead screw and nut pair with the output shaft of the servo motor 223.

[0062] A bearing is installed in the second mounting hole 2242 with an interference fit. Its function is to provide precise rotational support for the neck of the adjustable roll 221. The bearing is an angular contact ball bearing, and the preload is adjusted by adjusting shims.

[0063] In this embodiment, the axes of the first mounting hole 2241 and the second mounting hole 2242 are perpendicular to each other; in other embodiments, the axes of the first mounting hole 2241 and the second mounting hole 2242 may also be arranged at a certain tilt angle, with the tilt angle ranging from 0 to 5 degrees.

[0064] A groove 2243 is provided on the side of the slider 224 facing the vertical plate 11; a slide rail 112 is fixedly installed on the side of the vertical plate 11 facing the slider 224. The slide rail 112 and the groove 2243 form a sliding engagement relationship, providing precise guidance for the vertical movement of the slider 224 and restricting its degree of freedom on the horizontal plane, ensuring that the adjustable roller 221 maintains a parallel relationship with the fixed roller 211 during the adjustment process.

[0065] In this embodiment, the slide groove 2243 is a rectangular groove with a width of 40-60 mm and a depth of 30-50 mm; in other embodiments, the slide groove 2243 may also be a dovetail groove or a T-shaped groove. The mating clearance is controlled within the range of 0.02-0.08 mm.

[0066] The slide rail 112 has multiple first threaded holes spaced vertically, which provide locking points at different height positions. The slider 224 has second threaded holes that mate with the first threaded holes, allowing for auxiliary fixing of the slider 224 via fastening bolts. The second threaded holes and the first threaded holes use the same thread specification. When the adjustable roller 221 is adjusted to the predetermined height, the second threaded hole is coaxially aligned with one of the first threaded holes and connected by a high-strength fastening bolt. This structure provides additional mechanical locking protection for the adjusted position.

[0067] The sliding surface of the slide groove 2243 is coated with a polytetrafluoroethylene (PTFE) coating, which reduces the coefficient of sliding friction and improves the smoothness of adjustment. In this embodiment, the PTFE coating thickness is 1 mm, and the coefficient of friction is 0.04-0.08; in other embodiments, the PTFE coating thickness can be selected between 0.5 mm and 2 mm. This coating treatment reduces the frictional resistance between the slider 224 and the slide rail 112, making the gap adjustment smoother, and also has a certain self-lubricating effect, which can reduce wear caused by direct metal-to-metal contact.

[0068] In addition, each of the two opposing vertical plates 11 is equipped with an adjustment mechanism 222, which enables independent or synchronous adjustment of both ends of the adjustable roll 221. In this embodiment, the adjustment mechanisms 222 on both sides adopt the same structure and specifications, and the servo motors 223 have the same model and parameters. In other embodiments, the adjustment mechanisms 222 on both sides can also use servo motors 223 of different specifications to adapt to different load requirements. For example, a servo motor 223 with a larger torque can be selected on the drive side, and a servo motor 223 with a standard torque can be selected on the operation side. The symmetrical arrangement in this embodiment allows the height of both ends of the adjustable roll 221 to be precisely controlled, and the position synchronization error at both ends can be controlled within ±0.02 mm.

[0069] In addition, the regulating mechanism 222 also includes a controller (not shown in the figure), which coordinates the operation of the two servo motors 223. The controller and the two servo motors 223 are connected via fieldbus or industrial Ethernet.

[0070] The controller is configured to send synchronous drive signals to the two servo motors 223. This control method ensures that the two ends of the adjustable roll 221 rise and fall synchronously, maintaining the horizontal state of the roll system. In this embodiment, the controller is a PLC programmable controller with a CPU module that has multi-axis synchronous control functionality; in other embodiments, the controller can also be a dedicated motion controller or an industrial computer, with a motion control cycle of 1-4 milliseconds.

[0071] Specifically, the servo motor 223 drives the lead screw and nut pair to move the slider 224, thereby adjusting the position of the adjustable roll 221. Due to the high transmission accuracy and self-locking characteristics of the lead screw and nut pair, this structure has a positive effect on improving adjustment accuracy and enhancing operational stability. Simultaneously, the cooperation structure between the slide rail 112 and the slide groove 2243 provides reliable guidance for the adjustment process. The synchronous control function of the controller adjusts the output by comparing the position feedback signals of the two servo motors 223 in real time, which helps maintain the parallelism of the rolls. The mechanical locking structure provides additional assurance for long-term operational stability.

[0072] Overall, this invention employs a roll assembly 2 consisting of a frame 1, a fixed roll system 21, and an adjusting roll system 22. The organic combination of these structures enables precise control and stable maintenance of the roll gap to a certain extent.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A copper strip blanking machine with adjustable roll gap, characterized in that, include: The frame (1) includes two opposing upright plates (11); the upright plates (11) are provided with limiting cavities (111); A roll assembly (2) for rolling copper strip; the roll assembly (2) includes a fixed roll system (21) and an adjustable roll system (22); The fixed roller system (21) includes a fixed roller (211) rotatably supported on the vertical plate (11) by bearings, and a drive motor for driving the fixed roller (211); The adjusting roller system (22) includes an adjustable roller (221) and an adjusting mechanism (222) disposed on the vertical plate (11); the adjusting mechanism (222) includes a servo motor (223) fixed on the vertical plate (11) and a slider (224) that forms a lead screw and nut pair transmission connection with the output shaft of the servo motor (223); the slider (224) is provided with a first mounting hole (2241) and a second mounting hole (2242); the first mounting hole (2241) is formed with an internal thread for the output shaft of the servo motor (223) to be screwed in to form the lead screw and nut pair; the second mounting hole (2242) is fitted with a bearing for the roller neck of the adjustable roller (221) to pass through the limiting cavity (111) and be installed to realize rotational support; in, The servo motor (223) can drive the slider (224) to move vertically to adjust the rolling gap between the adjustable roll (221) and the fixed roll (211).

2. The copper strip blanking equipment with adjustable roll gap according to claim 1, characterized in that: The slider (224) has a groove (2243) on the side facing the vertical plate (11). The upright plate (11) is provided with a slide rail (112) on the side facing the slider (224). The slide rail (112) and the slide groove (2243) form a sliding fit to guide the slider (224).

3. The copper strip blanking equipment with adjustable roll gap according to claim 2, characterized in that: The slide rail (112) is provided with a plurality of first threaded holes spaced apart in the vertical direction; The slider (224) has a second threaded hole; When the adjustable roll (221) is adjusted to a predetermined height, the second threaded hole is coaxially aligned with one of the first threaded holes and connected by a fastening bolt.

4. The copper strip blanking equipment with adjustable roll gap according to claim 2, characterized in that, The sliding surface of the groove (2243) is coated with a polytetrafluoroethylene coating with a thickness of 0.5 mm to 2 mm.

5. The copper strip blanking equipment with adjustable roll gap according to claim 1, characterized in that, The two opposing upright plates (11) are each provided with the adjustment mechanism (222).

6. The copper strip blanking equipment with adjustable roll gap according to claim 5, characterized in that, The adjustment mechanism (222) also includes a controller; the controller is signal-connected to the two servo motors (223); the controller is configured to send synchronous drive signals to the two servo motors (223) to make the two ends of the adjustable roll (221) rise and fall synchronously.

7. The copper strip blanking equipment with adjustable roll gap according to claim 1, characterized in that, The limiting cavity (111) and the neck of the adjustable roll (221) are in clearance fit, with a single-sided clearance value ranging from 0.05 mm to 0.5 mm.

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