Continuous rolling extrusion method and continuous rolling extrusion equipment for brass strip preparation and capable of improving extrusion precision

Abstract

The invention relates to the technical field of copper strip machining, in particular to a continuous rolling extrusion method and equipment for brass strip preparation and capable of improving extrusion precision, the equipment comprises a rack, a roller, an adjusting mechanism, a rolling-in detection unit and a rolling-out detection unit, and the adjusting mechanism comprises a first shear fork frame and a plurality of first supporting assemblies; the first shear fork frame stretches out and draws back in the axis direction of the roller, the multiple first supporting assemblies can be driven to move synchronously, the first supporting assemblies are matched with radial shrinkage of the roller, the attaching state of the first supporting assemblies and the inner wall of the roller is changed, and the rolling requirements corresponding to brass strips with different widths can be met by adjusting the stretching amount of the first shear fork frame; the first supporting assemblies arranged at equal intervals can ensure that the rollers are more evenly supported at different positions, and the situation that due to insufficient local supporting, the rollers deform, and consequently the rolling precision of brass strips is affected is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper strip processing, in particular to a continuous rolling and extruding method and device for improving the extrusion precision of brass strip preparation. BACKGROUND

[0002] Copper strip extrusion is a processing method that uses rollers in an extruder to apply pressure to copper strips to process them into the desired shape and size. It is widely used in the manufacture of high-precision, high-quality copper products such as wires, cables, and connectors. The finished products have excellent electrical conductivity and mechanical properties. Rollers, as the core tool in this process, are usually made of high-strength alloy steel. By applying pressure to metal plates, rods, or tubes, they are deformed to obtain products that meet specifications.

[0003] Chinese Patent No. CN119771916B discloses a continuous extrusion device and method for copper strip processing. The device includes a workbench, multiple first rotating sources, and a pressure roller base. Adjacent pressure roller bases extrude copper strips. The inner wall of the pressure roller base is provided with reinforcing ribs that gradually increase in height from the middle to both ends of the pressure roller base, aiming to improve the extrusion precision of copper strips. However, the reinforcing ribs of this device are fixedly arranged and cannot dynamically adjust the support force distribution on the pressure roller according to the real-time state (such as thickness, width, and flatness changes) during the copper strip rolling process. It can only adapt to specific working conditions through pre-set structures. Moreover, it lacks real-time detection and feedback mechanisms for copper strip rolling parameters before and after rolling, making it difficult to flexibly adjust the extrusion parameters for different materials and specifications of copper strips. When there is a deviation in the initial state of the copper strip or stress fluctuations occur during the rolling process, the extrusion precision may be unstable due to the mismatch between the support force and the actual demand, affecting the consistency of the finished product quality. SUMMARY

[0004] To solve the above problems, a continuous rolling and extruding method and device for improving the extrusion precision of brass strip preparation are provided. By extending and retracting the first scissor frame along the axis of the roller, multiple first support components are simultaneously moved. By retracting the first support components along the radial direction of the roller, the fit state with the inner wall of the roller is changed. By adjusting the extension and retraction amount of the first scissor frame, the rolling requirements of brass strips of different widths can be adapted, and the support density of the first support components in the roller is adjusted. The equidistantly arranged first support components ensure that the roller receives more uniform support at different positions, preventing deformation of the roller due to insufficient local support, which affects the rolling precision of the brass strip.

[0005] To solve the problems in the prior art, the present application provides a continuous rolling and extruding method for improving the extrusion precision of brass strip preparation, which is applied to a continuous rolling and extruding device. The device includes a frame, a roller, an adjusting mechanism, an entry rolling detection unit, and an exit rolling detection unit. The adjusting mechanism includes a first scissor frame and multiple first support components. The extruding method includes the following steps: S1, before the brass strip enters the roller on the frame, the thickness, width and flatness of the brass strip to be rolled are detected by the entry rolling detection unit; S2, the rolling range is determined according to the width detected in step S1, the adjusting mechanism is controlled to act, the first scissors frame is driven to stretch and shrink in the roller, a plurality of first support assemblies are driven to expand equidistantly in the roller, the support density of the roller is adjusted, the first support assemblies are retracted along the radial direction of the roller, and the first support assemblies are attached to the inner wall of the roller. S3, the roller continuously rolls and extrudes the brass strip; S4, after the brass strip leaves the roller, the thickness, width and flatness of the rolled brass strip are detected by the exit rolling detection unit; S5, the detection data of steps S1 and S4 are compared, if the accuracy deviation exceeds the preset threshold, the support force is readjusted to return to step S2 until the extrusion accuracy of the brass strip meets the requirements.

[0006] A continuous rolling and extruding device, comprising a frame, a roller, an adjusting mechanism, an entry rolling detection unit and an exit rolling detection unit, the roller is rotatably arranged on the frame, the adjusting mechanism is arranged in the roller, the entry rolling detection unit and the exit rolling detection unit are respectively located on both sides of the frame, the adjusting mechanism comprises a first scissors frame and a plurality of first support assemblies, the first scissors frame is arranged in the roller and can stretch and shrink along the axis direction of the roller, the plurality of first support assemblies are equidistantly arranged on the first scissors frame, and the first support assemblies can stretch and shrink along the radial direction of the roller.

[0007] Preferably, a support frame extending along the axis direction of the roller is arranged in the roller, the middle part of the first scissors frame is connected with the center of the support frame, the two ends of the support frame are provided with second scissors frames, one end of each of the two second scissors frames is connected with the corresponding end of the support frame, one end of each of the two second scissors frames close to the center of the support frame is connected with the two ends of the first scissors frame, and the two second scissors frames can stretch and shrink along the axis direction of the roller, the two second scissors frames are provided with a plurality of equidistantly arranged second support assemblies, and the second support assemblies have the same structure as the first support assemblies.

[0008] Preferably, mounting seats are arranged on both ends of the frame and located on both sides of the roller, the roller is rotatably arranged between the two mounting seats, the two ends of the support frame are fixedly connected with the two mounting seats, and the adjusting mechanism is rotatably connected with the roller.

[0009] Preferably, the first support assembly comprises a hydraulic cavity and a plurality of support rods, the support frame is provided with a sliding rail extending along the axis direction of the roller, the hydraulic cavity is provided with a pulley matched with the sliding rail, the hydraulic cavity is hingedly connected with the first scissors frame, the plurality of support rods are sleeved on the hydraulic cavity, and the support rods can slide along the radial direction of the roller.

[0010] Preferably, two adjacent hydraulic chambers are connected by a pipe, and a valve is installed on the pipe.

[0011] Preferably, a roller is provided on the end of the support rod near the roller.

[0012] Preferably, a toothed ring is fixedly connected to one end of the roll, and a gear meshing with the toothed ring and a first rotary drive motor for driving the gear to rotate are provided on the mounting base.

[0013] Preferably, the adjustment mechanism is further provided with a distance sensor for monitoring the movement distance of the first support component.

[0014] Preferably, both the infeed inspection unit and the outfeed inspection unit include a thickness sensor for detecting the thickness of the brass strip, a width sensor for detecting the width, a laser scanning device for detecting the flatness, and a data processing module.

[0015] The advantages of this invention compared to the prior art are: 1. This invention utilizes the telescoping and retraction of a first scissor lift along the axial direction of the roll, which synchronously moves multiple first support components equidistantly arranged on the first scissor lift. In conjunction with the radial contraction of the first support components along the roll, the contact state with the inner wall of the roll is changed, facilitating the movement of the first support components with the first scissor lift. Furthermore, the support strength to the inner wall of the roll can be further adjusted by varying the telescoping length. By adjusting the telescoping amount of the first scissor lift, it can adapt to the rolling requirements of brass strips of different widths, thereby adjusting the support density of the first support components within the roll. The equidistant arrangement of the first support components ensures more uniform support to the roll at different positions, preventing roll deformation due to insufficient local support, which would affect the rolling accuracy of the brass strip. 2. This invention utilizes a first scissor lift to extend and retract along the roll axis towards both ends of the roll, simultaneously driving the second scissor lifts connected to both ends to move synchronously. Since the ends of the two second scissor lifts near the center of the support frame are respectively connected to the ends of the support frame, this linkage structure allows the first and second scissor lifts to expand or retract in tandem. Combined with the radial extension and retraction of the first and second support components, it can precisely adapt to the varying requirements of brass strip for roll support strength distribution at different rolling stages, ensuring the matching of support status and rolling pressure, thereby improving extrusion accuracy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a continuous rolling and extrusion equipment; Figure 2 This is a three-dimensional structural diagram of the frame, mounting base, and two rolls in a continuous rolling extrusion equipment; Figure 3This is a three-dimensional structural diagram of the mounting base and rolls in a continuous rolling extrusion equipment; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional structural diagram of the mounting base and adjustment mechanism in a continuous rolling and extrusion equipment; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 This is a three-dimensional structural diagram of the adjustment mechanism in a continuous rolling and extrusion equipment; Figure 8 yes Figure 7 Enlarged view of point C in the middle; Figure 9 This is a front view of the first scissor lift in a continuous rolling and extrusion equipment when it is deployed; Figure 10 This is a front view of the first scissor lift in a continuous rolling and extrusion equipment when it retracts.

[0017] The following numbers are labeled in the diagram: 11, Roller; 111, Adjustment Mechanism; 1111, First Scissor Thrower; 1112, First Support Assembly; 11121, Hydraulic Chamber; 11122, Pulley; 11123, Support Rod; 11124, Roller; 1113, Second Scissor Thrower; 1114, Second Support Assembly; 1115, Distance Sensor; 112, Gear Ring; 12, Support Frame; 121, Slide Rail; 13, Mounting Base; 131, Gear; 132, First Rotary Drive Motor. Detailed Implementation

[0018] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10 The diagram illustrates a continuous rolling extrusion method for improving the extrusion precision of brass strip. This method is applied to a continuous rolling extrusion apparatus, which includes a frame 1, rolls 11, an adjusting mechanism 111, an infeed detection unit, and an outfeed detection unit. The adjusting mechanism 111 includes a first scissor lift 1111 and multiple first support assemblies 1112. The extrusion method includes the following steps: S1. Before the brass strip enters the roll 11 on the stand 1, the thickness, width and flatness of the area to be rolled of the brass strip are detected by the infeed detection unit. S2. Determine the rolling range based on the width detected in step S1, control the adjustment mechanism 111 to move, drive the first scissor frame 1111 to extend and retract within the roll 11, drive multiple first support components 1112 to unfold equidistantly within the roll 11, adjust the support density of the roll 11, and coordinate with the first support components 1112 to retract radially along the roll 11, so that the first support components 1112 fit against the inner wall of the roll 11. S3 and roll 11 continuously roll and extrude the brass strip; S4. After the brass strip leaves the roll 11, the thickness, width and flatness of the rolled brass strip are detected by the exit inspection unit. S5. Compare the detection data from steps S1 and S4. If the accuracy deviation exceeds the preset threshold, return to step S2 to readjust the support force until the brass strip extrusion accuracy meets the requirements.

[0020] like Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10 As shown: A continuous rolling extrusion apparatus includes a frame 1, rolls 11, an adjusting mechanism 111, an infeed detection unit, and an outfeed detection unit. The rolls 11 are rotatably mounted on the frame 1. The adjusting mechanism 111 is located inside the rolls 11. The infeed detection unit and the outfeed detection unit are located on opposite sides of the frame 1. The adjusting mechanism 111 includes a first scissor lift 1111 and multiple first support components 1112. The first scissor lift 1111 is telescopically mounted inside the rolls 11 along the axial direction of the rolls 11. The multiple first support components 1112 are equidistantly mounted on the first scissor lift 1111, and the first support components 1112 are radially telescopically mounted on the rolls 11.

[0021] When the continuous rolling extrusion equipment is in operation, the frame 1 provides the overall installation support. There are two rolls 11, located at the top and bottom of the frame 1 respectively. There is a gap between the two rolls 11 that allows the brass strip to pass through, and the size of the gap is adjustable. The rolls 11 rotate on the frame 1 to continuously roll and extrude the passing brass strip.

[0022] Before the brass strip enters the roll 11, the infeed inspection unit (not shown in the figure) inspects its thickness, width, and flatness to provide a basis for subsequent adjustments. After rolling, the outfeed inspection unit (not shown in the figure) inspects the thickness, width, and flatness of the rolled brass strip to determine whether the rolling accuracy meets the requirements. The adjustment mechanism 111 extends and retracts along the axis of the roll 11 via the first scissor lift 1111, which drives multiple first support components 1112 equidistantly arranged on the first scissor lift 1111 to move synchronously. Since the first support components 1112 can extend and retract radially along the roll 11, when the first scissor lift 1111 extends and retracts, the first support components 1112 will correspondingly retract radially along the roll 11, changing the contact state with the inner wall of the roll 11. This facilitates the movement of the first support components 1112 with the first scissor lift 1111 and allows for further adjustment of the support force on the inner wall of the roll 11 through changes in the extension and retraction length. By adjusting the extension and retraction of the first scissor lift 1111, the rolling requirements corresponding to brass strips of different widths can be adapted, thereby adjusting the support density of the first support component 1112 inside the roll 11 on the roll 11. The equidistant first support components 1112 can ensure that the roll 11 receives more uniform support at different positions, avoiding deformation of the roll 11 due to insufficient local support, which would affect the rolling accuracy of the brass strip.

[0023] It should be noted that the support force of the roll 11, as one of the core parameters in the rolling process, does not act independently on the rolling accuracy of the brass strip. It also needs to be coordinated with parameters such as the gap between the two rolls 11 (i.e., the rolling pressure), the rotational speed of the roll 11, the feed speed of the brass strip, and the temperature of the rolling zone. The size of the gap directly determines the pressure acting on the brass strip during the rolling process. The rotational speed and feed speed are matched to ensure the stability of the rolling rhythm. The temperature affects the plasticity and deformation resistance of the brass strip. The support force provides a basis for the precise action of these parameters by stabilizing the stress state of the roll 11. All parameters are adjusted in a closed loop through real-time feedback from the in-rolling detection unit and the out-of-rolling detection unit, ultimately achieving efficient control of the rolling accuracy of the brass strip.

[0024] like Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10As shown: A support frame 12 extending along its axial direction is provided inside the roll 11. The middle part of the first scissor lift 1111 is connected to the center of the support frame 12. A second scissor lift 1113 is provided at both ends of the support frame 12. One end of each of the two second scissor lifts 1113 is connected to the corresponding end of the support frame 12. The end of each of the two second scissor lifts 1113 near the center of the support frame 12 is connected to both ends of the first scissor lift 1111. Both second scissor lifts 1113 can extend and retract along the axial direction of the roll 11. Each of the two second scissor lifts 1113 is provided with a plurality of equidistantly arranged second support components 1114. The structure of the second support components 1114 is the same as that of the first support components 1112.

[0025] When the continuous rolling extrusion equipment is working, the support frame 12 inside the roll 11 extends along the axial direction, providing a stable mounting base for the entire adjustment structure. The middle part of the first scissor lift 1111 is connected to the center of the support frame 12, forming a fulcrum for the adjustment action. When it is necessary to adjust the support state of the roll 11, the first scissor lift 1111 extends and retracts towards both ends of the roll 11 along the axial direction of the roll 11, while simultaneously driving the second scissor lift 1113 connected at both ends to move synchronously. Since the ends of the two second scissor lifts 1113 near the center of the support frame 12 are respectively connected to the ends of the support frame 12, this linkage structure allows the first scissor lift 1111 and the second scissor lift 1113 to expand or retract in coordination. As the first scissor lift 1111 moves, multiple equidistant second support components 1114 on the second scissor lift 1113 and the first support component 1112 on the first scissor lift 1111 synchronously extend and retract radially along the roll 11, jointly changing the contact range and support force with the inner wall of the roll 11. This allows for precise adjustment of the support density in different areas of the roll 11 according to the rolling requirements of the brass strip, ensuring that the roll 11 is subjected to uniform force during the rolling process.

[0026] It should be noted that in the initial state, the first support assembly 1112 and the second support assembly 1114 on the first scissor lift 1111 and the second scissor lift 1113 are arranged at equal intervals, and the support density inside the roll 11 remains balanced in the axial direction. By coordinating the extension and retraction of the first scissor lift 1111 and the second scissor lift 1113, the positions of the first support assembly 1112 and the second support assembly 1114 can be flexibly adjusted, thereby adjusting the support density inside the roll 11. When the rolling requirement is that the middle of the roll 11 needs higher support force, the first scissor lift 1111 retracts towards the center and drives the second scissor lift 1113 to extend synchronously, making the first support assembly 1112 in the central area more densely distributed, while the second support assembly 1114 at both ends of the roll 11 is relatively sparsely distributed, thus forming a state of high support force density in the middle and low support force density at both ends; conversely, when the rolling requirement is that the ends of the roll 11 need higher support force, the first scissor lift 1111 extends towards both ends and drives the second scissor lift 1113 to retract synchronously, making the second support assembly 1114 in the end areas more densely distributed, while the first support assembly 1112 in the center is relatively sparsely distributed, thus forming a state of high support force density at both ends and low support force density in the center. With the radial extension and retraction of the first support component 1112 and the second support component 1114, the different requirements of the brass strip for the support strength distribution of the roll 11 at different rolling stages can be accurately adapted to ensure the matching of the support state and the rolling pressure, thereby improving the extrusion accuracy.

[0027] like Figures 1 to 3 and Figure 5 As shown: Mounting seats 13 are provided at both ends of the roll 11 on the frame 1. The roll 11 is rotatably mounted between the two mounting seats 13. The two ends of the support frame 12 are fixedly connected to the two mounting seats 13 respectively. The adjustment mechanism 111 is rotatably connected to the roll 11.

[0028] When the continuous rolling extrusion equipment is working, the two mounting seats 13 on the frame 1 support the two ends of the roll 11 respectively, so that the roll 11 can rotate stably between the two mounting seats 13 to complete the rolling of the brass strip. The support of the two mounting seats 13 on the two ends of the roll 11 can ensure the coaxiality of the roll 11 when it rotates, reduce the sway caused by uneven force at both ends, and improve the rolling stability.

[0029] The support frame 12 inside the roll 11 is fixedly connected to the mounting base 13 at both ends, thus maintaining a static state and ensuring the accuracy and consistency of the support force adjustment, providing a stable installation foundation for the adjustment mechanism 111. The adjustment mechanism 111 is mounted on the support frame 12 and contacts the inner wall of the roll 11 through a rotating connection structure. This does not affect the normal rotation of the roll 11, and it can transmit the support force to the roll 11 through its own telescopic movement (such as the first scissor lift 1111 driving the first support component 1112 to adjust the distribution density and intensity of the support force). This allows the support force to be precisely applied to different areas of the roll 11 according to the rolling requirements. This ensures the smooth rotation of the roll 11, improves the extrusion accuracy of the brass strip through the stable support of the adjustment mechanism 111, and enhances the reliability of the equipment during continuous rolling.

[0030] like Figure 3 , Figures 5 to 10 As shown: The first support assembly 1112 includes a hydraulic chamber 11121 and a plurality of support rods 11123. The support frame 12 is provided with a slide rail 121 extending along the axial direction of the roll 11. The hydraulic chamber 11121 is provided with a pulley 11122 that matches the slide rail 121. The hydraulic chamber 11121 is hinged to the first scissor lift 1111. The plurality of support rods 11123 are sleeved on the hydraulic chamber 11121, and the support rods 11123 can slide radially along the roll 11.

[0031] When the continuous rolling extrusion equipment is in operation, the hydraulic chamber 11121 of the first support assembly 1112 engages with the slide rail 121 extending along the axis of the roll 11 on the support frame 12 via pulley 11122, allowing the hydraulic chamber 11121 to slide along the slide rail 121 to achieve position adjustment. Simultaneously, the hydraulic chamber 11121 is hinged to the first scissor lift 1111; when the first scissor lift 1111 extends or retracts, it drives the hydraulic chambers 11121 of multiple first support assemblies 1112 to move synchronously on the slide rail 121.

[0032] Multiple support rods 11123, fitted onto the hydraulic chamber 11121, can slide radially along the roll 11 under the drive of the hydraulic system, allowing the support rods 11123 to contact or separate from the inner wall of the roll 11. When it is necessary to adjust the distribution of the support force, the extension and retraction of the first scissor lift 1111 is transmitted to the hydraulic chamber 11121 through the hinge point, causing the hydraulic chamber 11121 to move along the slide rail 121 to the target position. Subsequently, the hydraulic system drives the support rods 11123 to extend radially and fit against the inner wall of the roll 11. By changing the distribution density and extension length of the support rods 11123, precise adjustment of the support force in different areas of the roll 11 can be achieved.

[0033] The hinged connection between the hydraulic chamber 11121 and the first scissor lift 1111 transforms the telescopic movement of the first scissor lift 1111 into the linear sliding of the hydraulic chamber 11121, making the position adjustment of the first support assembly 1112 more flexible and precise, and enabling rapid response to different rolling requirements. The cooperation between the slide rail 121 and the pulley 11122 provides stable guidance for the movement of the hydraulic chamber 11121, reducing frictional resistance and ensuring a smooth and reliable adjustment process. The hydraulically driven support rod 11123 can achieve stepless adjustment, accurately controlling the support force according to the actual force on the roll 11, thus improving extrusion accuracy. The modular design of the first support assembly 1112 facilitates installation and maintenance, allowing for flexible adjustment or replacement of components according to production needs, reducing equipment maintenance costs. The overall structure, through the combination of mechanical linkage and hydraulic drive, ensures both the flexibility of support force adjustment and sufficient support rigidity, effectively reducing roll 11 deformation, extending equipment service life, and improving the rolling quality and production efficiency of brass strip.

[0034] It should be noted that the first scissor lift 1111 is also driven by hydraulic power. A hydraulic drive rod that can extend and retract synchronously to both ends of the roll 11 is provided in the center of the support frame 12. The first support components 1112 located on both sides of the hydraulic drive rod on the first scissor lift 1111 are fixedly connected to the corresponding hydraulic drive rod, thereby realizing the movement of the first scissor lift 1111.

[0035] like Figure 3 , Figures 5 to 10 As shown: two adjacent hydraulic chambers 11121 are connected by a pipe, and a valve is installed on the pipe.

[0036] Two adjacent hydraulic chambers 11121 are connected by a pipe (not shown in the figure), and a valve (not shown in the figure) is installed on the pipe. The valve is preferably an electromagnetic control valve with opening adjustment function, which is uniformly controlled by the back-end control system of the equipment. The adjacent hydraulic chambers 11121 are equidistantly distributed along the axial direction of the roll 11, corresponding to the brass strip width detection zone identified by the rolling detection unit. When the infeed inspection unit detects that the thickness deviation of the brass strip to be rolled exceeds a preset threshold, or the outfeed inspection unit reports abnormal flatness of the brass strip after rolling, requiring adjustment of the support state of roll 11, the hydraulic system provides power through a hydraulic pump to control the opening and closing of valves and the degree of opening, adjusting the hydraulic oil flow and pressure balance between adjacent hydraulic chambers 11121. For example, when a certain area requires greater support force, the valve of the corresponding pipe is closed, and the hydraulic pump supplies oil to that hydraulic chamber 11121. As the support rod 11123 extends, the chamber volume is compressed, causing the pressure of that hydraulic chamber 11121 to increase independently, thereby driving the support rod 11123 to extend to increase the support force. When uniform support is required, the valve is opened to connect adjacent hydraulic chambers 11121, and hydraulic oil flows between the chambers to balance the pressure. This setting allows multiple hydraulic chambers 11121 to act collaboratively and can also be controlled in zones according to the rolling requirements fed back by the infeed and outfeed inspection units, achieving dynamic distribution of support force through valve adjustment.

[0037] The connection of pipes and valves enhances the flexibility and controllability of the hydraulic system, enabling the equipment to adjust the distribution of support force in real time according to the rolling requirements of different areas of the brass strip, thus improving the equipment's adaptability to complex working conditions. By balancing the pressure of adjacent hydraulic chambers 11121, local stress concentration can be reduced, preventing the roll 11 from deforming due to uneven force, and further improving extrusion accuracy.

[0038] like Figure 3 , Figures 5 to 10 As shown: A roller 11124 is provided on one end of the support rod 11123 near the roller 11.

[0039] When the roll 11 rotates, the roller 11124 rolls synchronously with the inner wall of the roll 11, transforming traditional sliding friction into rolling friction and effectively reducing contact resistance. During adjustment, the hydraulic system drives the support rod 11123 to extend and retract radially along the roll 11, while the roller 11124 remains in rolling contact with the inner wall of the roll 11. This ensures effective transmission of support force and avoids wear and heat accumulation caused by sliding friction. The roller 11124 significantly reduces the coefficient of friction between the support rod 11123 and the inner wall of the roll 11, reducing energy loss and improving the transmission efficiency of the equipment. The rolling contact method avoids the impact of wear particles generated by sliding friction on the surface quality of the roll 11, extending the service life of the roll 11. The rolling characteristics of the roller 11124 make the support rod 11123 more responsive during movement and extension, quickly adapting to changes in rolling parameters and improving the dynamic performance of support adjustment. The rolling contact generates less heat, reducing support accuracy deviations caused by thermal expansion and further improving the rolling accuracy of the brass strip.

[0040] like Figures 1 to 5 As shown: A gear ring 112 is fixedly connected to one end of the roll 11, and a gear 131 meshing with the gear ring 112 and a first rotary drive motor 132 for driving the gear 131 to rotate are provided on the mounting base 13.

[0041] After the first rotary drive motor 132 is started, it drives the gear 131 on the mounting base 13 to rotate. Since the gear 131 meshes with the gear ring 112 fixedly connected to one end of the roll 11, the rotational motion of the gear 131 is transmitted to the roll 11 through the gear ring 112, causing the roll 11 to rotate stably between the two mounting bases 13, thereby continuously rolling and extruding the brass strip through the two rolls 11. In this transmission method, the power of the first rotary drive motor 132 is directly transmitted to the roll 11 through the meshing of the gear 131 and the gear ring 112, which can accurately control the rotational speed and direction of the roll 11, ensuring that the rotational speed of the roll 11 matches the feeding rhythm of the brass strip. At the same time, the fixed connection between the gear ring 112 and the roll 11 ensures the stability of power transmission and avoids slippage or lag in the transmission process. The meshing transmission has high structural strength and can withstand large loads during the rolling process, avoiding equipment operation affected by damage to power transmission components and extending the service life of the equipment. At the same time, the fit between gear 131 and gear ring 112 facilitates maintenance and replacement, reducing equipment maintenance costs.

[0042] like Figures 5 to 8 As shown: The adjustment mechanism 111 is also provided in a distance sensor 1115 for monitoring the movement distance of the first support component 1112.

[0043] By setting the distance sensor 1115, the moving distance of the first support component 1112 can be monitored in real time, and the monitoring data can be transmitted to the back-end control system of the equipment. When the first scissor lift 1111 drives the first support component 1112 to move along the axis of the roll 11, the distance sensor 1115 synchronously records its displacement to ensure that the moving position of the first support component 1112 matches the brass strip parameters fed back by the rolling detection unit. For example, when a change in the width of the brass strip is detected, the back-end control system adjusts the extension and retraction of the first scissor lift 1111 according to the data of the distance sensor 1115, so that the first support component 1112 moves accurately to the corresponding rolling area, ensuring that the supporting force acts on the effective position of the roll 11; if the moving distance deviates, the distance sensor 1115 will provide immediate feedback, and the back-end control system will quickly correct the action of the adjustment mechanism 111 to avoid the roll 11 from being unbalanced due to the inaccurate position of the support component. It reduces the deformation of roll 11 or the decrease in the rolling accuracy of brass strip caused by positional deviation; through the linkage of sensors and control system, a closed-loop adjustment mechanism is formed, which improves the response speed of the equipment to changes in rolling parameters and can quickly adapt to the rolling requirements of brass strips of different widths and materials; it improves the automation level of equipment operation and reduces the difficulty of operation.

[0044] like Figures 1 to 3 As shown: Both the infeed inspection unit and the outfeed inspection unit include a thickness sensor for detecting the thickness of the brass strip, a width sensor for detecting the width, a laser scanning device for detecting the flatness, and a data processing module.

[0045] When the continuous rolling extrusion equipment is working, the infeed detection unit starts working before the brass strip enters the roll 11. The thickness sensor detects the thickness of the brass strip, the width sensor detects its width, and the laser scanning device obtains flatness information by scanning the surface of the brass strip. These detection signals are all transmitted to the data processing module, processed and converted into quantified data, and then transmitted to the control system at the back end of the equipment to provide the initial basis for the adjustment mechanism 111 to adjust the support force, gap and other parameters of the roll 11. The outfeed detection unit detects the thickness, width and flatness of the brass strip in the same way after the brass strip has been rolled. The data processing module processes the data and feeds the results back to the control system to compare the parameter differences before and after rolling and to determine whether the rolling accuracy meets the requirements. If there is a deviation, the adjustment mechanism 111 is triggered to make targeted corrections.

[0046] By using the same structural components for the infeed and outfeed rolling inspection units, the comprehensiveness and accuracy of the inspection data are ensured, and the data format is standardized, improving compatibility with the control system. This reduces the variety of equipment components, lowers manufacturing and maintenance costs, and ensures the consistency of inspection standards, further improving the accuracy of rolling parameter adjustments and enhancing the reliability and stability of the equipment in continuous production.

[0047] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A continuous rolling extrusion method for preparing brass strip with improved extrusion precision, applied to a continuous rolling extrusion apparatus, characterized in that, The equipment includes a frame, rolls, an adjusting mechanism, an infeed detection unit, and an outfeed detection unit. The adjusting mechanism includes a first scissor lift and multiple first support components. The extrusion method includes the following steps: S1. Before the brass strip enters the rolls on the stand, the thickness, width and flatness of the area to be rolled of the brass strip are detected by the infeed detection unit. S2. Determine the rolling range based on the width detected in step S1, control the adjustment mechanism to move, drive the first scissor frame to extend and retract axially inside the roll, drive multiple first support components to unfold equidistantly inside the roll, adjust the support density of the roll, and coordinate with the first support components to retract radially along the roll, so that the first support components fit against the inner wall of the roll. S3. The rolls continuously roll and extrude the brass strip; S4. After the brass strip leaves the rolls, the thickness, width and flatness of the rolled brass strip are detected by the exit inspection unit. S5. Compare the detection data from steps S1 and S4. If the accuracy deviation exceeds the preset threshold, return to step S2 to readjust the support force until the brass strip extrusion accuracy meets the requirements.

2. A continuous rolling extrusion apparatus, comprising a frame, rolls, an adjusting mechanism, an infeed detection unit, and an outfeed detection unit, wherein the rolls are rotatably mounted on the frame, the adjusting mechanism is disposed inside the rolls, the infeed detection unit and the outfeed detection unit are respectively located on both sides of the frame, the adjusting mechanism comprises a first scissor frame and a plurality of first support components, the first scissor frame being extendable and retractable along the axial direction of the rolls and disposed inside the rolls, the plurality of first support components being equidistantly disposed on the first scissor frame, and the first support components being extendable and retractable along the radial direction of the rolls.

3. The continuous rolling and extrusion equipment according to claim 2, characterized in that, The roll is equipped with a support frame extending along its axis. The middle part of the first scissor lift is connected to the center of the support frame. A second scissor lift is provided at both ends of the support frame. One end of each second scissor lift is connected to the corresponding end of the support frame. The end of each second scissor lift near the center of the support frame is connected to both ends of the first scissor lift. Both second scissor lifts can extend and retract along the axis of the roll. Each second scissor lift is provided with multiple equidistantly arranged second support components. The second support components have the same structure as the first support components.

4. A continuous rolling and extrusion apparatus according to claim 3, characterized in that, Mounting seats are provided at both ends of the roll on the frame. The roll is rotatably positioned between the two mounting seats. The two ends of the support frame are fixedly connected to the two mounting seats respectively. The adjustment mechanism is rotatably connected to the roll.

5. A continuous rolling and extrusion apparatus according to claim 3, characterized in that, The first support assembly includes a hydraulic chamber and multiple support rods. The support frame is provided with a slide rail extending along the axial direction of the roll. The hydraulic chamber is provided with a pulley that matches the slide rail. The hydraulic chamber is hinged to the first scissor lift. The multiple support rods are sleeved on the hydraulic chamber and can slide radially along the roll.

6. A continuous rolling and extrusion apparatus according to claim 5, characterized in that, The two adjacent hydraulic chambers are connected by a pipe, and a valve is installed on the pipe.

7. A continuous rolling and extrusion apparatus according to claim 5, characterized in that, A roller is installed on the end of the support rod near the roller.

8. A continuous rolling and extrusion apparatus according to claim 4, characterized in that, A gear ring is fixedly connected to one end of the roll, and a gear meshing with the gear ring and a first rotary drive motor for driving the gear to rotate are provided on the mounting base.

9. A continuous rolling and extrusion apparatus according to claim 2, characterized in that, The adjustment mechanism is also provided with a distance sensor for monitoring the movement distance of the first support component.

10. A continuous rolling and extrusion apparatus according to claim 2, characterized in that, Both the infeed and outfeed inspection units include a thickness sensor for detecting the thickness of the brass strip, a width sensor for detecting the width, a laser scanning device for detecting the flatness, and a data processing module.

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