Continuous rolling and extruding method and apparatus for producing brass strip with improved extrusion accuracy

Abstract

The present application relates to copper strip processing technical field, specifically is related to the continuous rolling extrusion method and equipment for improving the extrusion precision of brass strip preparation, the equipment includes rack, roll, adjusting mechanism, rolling detection unit and rolling detection unit, the adjusting mechanism includes first scissor frame and multiple first support components, through the first scissor frame along the axial direction of roll telescoping, multiple first support components are driven synchronous movement, cooperate first support component along the radial contraction of roll, change the fit state with the inner wall of roll, by adjusting the telescoping amount of first scissor frame, the rolling demand of different width brass strip can be adapted, then the support density of first support component in roll to roll is adjusted, and the equidistantly arranged first support component can ensure that the support of roll is more uniform in different positions, avoid the deformation of roll caused by insufficient local support, so as to affect the rolling precision of brass strip.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper strip processing, in particular to a continuous rolling and extrusion 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 extrusion 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 extrusion method for improving the extrusion precision of brass strip preparation, which is applied to a continuous rolling and extrusion device. The device includes a frame, a roller, an adjustment mechanism, an entry rolling detection unit, and an exit rolling detection unit. The adjustment mechanism includes a first scissor frame and multiple first support components. The extrusion method includes the following steps:

[0006] 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.

[0007] 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 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.

[0008] S3. The rolls continuously roll and extrude the brass strip;

[0009] 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.

[0010] 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.

[0011] A continuous rolling extrusion apparatus includes a frame, rolls, an adjusting mechanism, an infeed detection unit, and an outfeed detection unit. The rolls are rotatably mounted on the frame. The adjusting mechanism is located inside the rolls. The infeed detection unit and the outfeed detection unit are located on opposite sides of the frame. The adjusting mechanism includes a first scissor lift and multiple first support components. The first scissor lift is telescopically mounted inside the rolls along the axial direction of the rolls. The multiple first support components are equidistantly mounted on the first scissor lift and are telescopically mounted along the radial direction of the rolls.

[0012] Preferably, a support frame extending along the axial direction is provided inside the roll. 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 of the two second scissor lifts is connected to the corresponding end of the support frame. The end of each of the two second scissor lifts 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 axial direction of the roll. Both second scissor lifts are provided with multiple equidistantly arranged second support components. The structure of the second support components is the same as that of the first support components.

[0013] Preferably, 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, and the adjustment mechanism is rotatably connected to the roll.

[0014] 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 hinged with the first scissor 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.

[0015] Preferably, the two adjacent hydraulic cavities are connected through a pipeline, and the pipeline is provided with a valve.

[0016] Preferably, one end of the support rod close to the roller is provided with a roller.

[0017] Preferably, one end of the roller is provided with a gear ring fixedly connected therewith, the mounting seat is provided with a gear engaged with the gear ring and a first rotary driving motor for driving the gear to rotate.

[0018] Preferably, the adjusting mechanism is also provided with a distance sensor for monitoring the moving distance of the first support assembly.

[0019] Preferably, the entry detection unit and the exit detection unit each comprise 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.

[0020] The beneficial effects of the present application compared with the prior art are:

[0021] 1. The first scissor frame is telescoped along the axis direction of the roller, which drives the plurality of first support assemblies equidistantly arranged on the first scissor frame to move synchronously, and the first support assemblies are retracted along the radial direction of the roller to change the fitting state with the inner wall of the roller, so that the first support assemblies can move with the first scissor frame, and the support intensity on the inner wall of the roller can be further adjusted by the change of the telescopic length. By adjusting the telescopic length of the first scissor frame, the rolling requirements of the brass strip of different widths can be adapted, and then the support density of the first support assemblies in the roller is adjusted, and the equidistantly arranged first support assemblies can ensure that the roller is more evenly supported at different positions, avoiding deformation of the roller due to insufficient local support, thereby affecting the rolling precision of the brass strip.

[0022] 2. The first scissor frame is telescoped along the axis direction of the roller to the two ends of the roller, which drives the two second scissor frames connected at the two ends to move synchronously, and since the ends close to the center of the support frame of the two second scissor frames are respectively connected with the end portions of the support frame, the linkage structure enables the first scissor frame and the second scissor frame to expand or contract cooperatively. In combination with the telescoping of the first support assembly and the second support assembly along the radial direction, the difference in support strength distribution of the brass strip at different rolling stages can be accurately adapted, the matching of the support state and the rolling pressure is ensured, and the extrusion precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of a continuous rolling extrusion device;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of a frame, a mounting seat and two rollers in a continuous rolling extrusion device;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of a mounting seat and a roller in a continuous rolling extrusion device;

[0026] Figure 4 is Figure 3 is an enlarged view of A in FIG. 1;

[0027] Figure 5 is a schematic diagram of the three-dimensional structure of a mounting seat and an adjusting mechanism in a continuous rolling extrusion device;

[0028] Figure 6 is Figure 5 is an enlarged view of B in FIG. 1;

[0029] Figure 7 is a schematic diagram of the three-dimensional structure of an adjusting mechanism in a continuous rolling extrusion device;

[0030] Figure 8 is Figure 7 is an enlarged view of C in FIG. 1;

[0031] Figure 9 is a front view of a first shear fork when expanded in a continuous rolling extrusion device;

[0032] Figure 10 is a front view of a first shear fork when contracted in a continuous rolling extrusion device.

[0033] In the figure, the reference numerals are: 11, roller; 111, adjusting mechanism; 1111, first shear fork; 1112, first support assembly; 11121, hydraulic cavity; 11122, pulley; 11123, support rod; 11124, roller; 1113, second shear fork; 1114, second support assembly; 1115, distance sensor; 112, gear ring; 12, support frame; 121, slide rail; 13, mounting seat; 131, gear; 132, first rotary driving motor. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in conjunction with the drawings and specific embodiments.

[0035] As Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 andFigure 10 The application discloses a continuous rolling and extruding method for preparing brass strips with improved extruding precision, which is applied to a continuous rolling and extruding device, and the device comprises a rack 1, a roller 11, an adjusting mechanism 111, an entering rolling detection unit and an exiting rolling detection unit. The adjusting mechanism 111 comprises a first scissor frame 1111 and a plurality of first support assemblies 1112. The extruding method comprises the following steps:

[0036] S1, before the brass strip enters the roller 11 on the rack 1, the thickness, width and flatness of the to-be-rolled region of the brass strip are detected by the entering rolling detection unit;

[0037] S2, the rolling range is determined according to the width detected in step S1, the adjusting mechanism 111 is controlled to act, the first scissor frame 1111 is driven to stretch and contract in the roller 11, the plurality of first support assemblies 1112 are driven to expand equidistantly in the roller 11, the support density of the roller 11 is adjusted, the first support assemblies 1112 are caused to be close to the inner wall of the roller 11 by contracting the first support assemblies 1112 along the radial direction of the roller 11, and the first support assemblies 1112 are caused to be close to the inner wall of the roller 11.

[0038] S3, the roller 11 performs continuous rolling and extruding on the brass strip;

[0039] S4, after the brass strip leaves the roller 11, the thickness, width and flatness of the rolled brass strip are detected by the exiting rolling detection unit;

[0040] S5, the detection data of steps S1 and S4 are compared, if the precision deviation exceeds a preset threshold, the support force is readjusted in step S2 until the extruding precision of the brass strip meets the requirements.

[0041] As shown in Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10 The application discloses a continuous rolling and extruding device, which comprises a rack 1, a roller 11, an adjusting mechanism 111, an entering rolling detection unit and an exiting rolling detection unit. The roller 11 is rotatably arranged on the rack 1, the adjusting mechanism 111 is arranged in the interior of the roller 11, the entering rolling detection unit and the exiting rolling detection unit are respectively arranged on the two sides of the rack 1, the adjusting mechanism 111 comprises a first scissor frame 1111 and a plurality of first support assemblies 1112, the first scissor frame 1111 is arranged in the interior of the roller 11 and can stretch and contract along the axial direction of the roller 11, and the plurality of first support assemblies 1112 are equidistantly arranged on the first scissor frame 1111 and can stretch and contract along the radial direction of the roller 11.

[0042] The continuous rolling and extruding device works, the frame 1 provides installation support for the whole, the rolling mill 11 is provided with two, respectively located at the top and bottom of the frame 1, the gap between the two rolling mills 11 has the gap for the brass strip to pass through, and the size of the gap can be adjusted, the rolling mill 11 rotates on the frame 1 to continuously roll and extrude the passing brass strip.

[0043] Before the brass strip enters the rolling mill 11, the entry detection unit (not shown in the figure) detects the thickness, width and flatness of the brass strip, which provides the basis for subsequent adjustment; after rolling, the exit detection unit (not shown in the figure) detects the thickness, width and flatness of the rolled brass strip, which is convenient for judging whether the rolling precision meets the requirements. The adjusting mechanism 111 is telescopic along the axis direction of the rolling mill 11 through the first scissors frame 1111, which will drive the multiple first support components 1112 equidistantly arranged on the first scissors frame 1111 to move synchronously. Since the first support component 1112 can be telescopic along the radial direction of the rolling mill 11, when the first scissors frame 1111 is adjusted, the first support component 1112 will be correspondingly telescopic along the radial direction of the rolling mill 11, changing the fitting state with the inner wall of the rolling mill 11. It is convenient for the first support component 1112 to move with the first scissors frame 1111, and the support intensity of the first support component 1112 to the inner wall of the rolling mill 11 can be further adjusted by changing the telescopic length. By adjusting the telescopic amount of the first scissors frame 1111, the rolling requirement of the brass strip of different width can be adapted, and then the support density of the first support component 1112 in the rolling mill 11 to the rolling mill 11 is adjusted. The equidistantly arranged first support components 1112 can ensure that the rolling mill 11 is more evenly supported at different positions, avoiding deformation of the rolling mill 11 due to insufficient local support, thereby affecting the rolling precision of the brass strip.

[0044] It should be noted that the support force of the rolling mill 11 is one of the core parameters in the rolling process, and it is not independent of the rolling precision of the brass strip. It also needs to be matched with the gap between the two rolling mills 11 (i.e. the rolling pressure), the rotating speed of the rolling mill 11, the feeding speed of the brass strip and the temperature of the rolling area. The size of the gap directly determines the pressure acting on the brass strip during rolling. The rotating speed and the feeding speed are matched to ensure the stability of the rolling rhythm, and the temperature affects the plasticity and deformation resistance of the brass strip. The support force provides a basis for the accurate action of these parameters by stabilizing the stress state of the rolling mill 11. Through the real-time feedback of the entry detection unit and the exit detection unit, the parameters form a closed loop adjustment, and finally realize the efficient control of the rolling precision of the brass strip.

[0045] As Figures 1 to 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10The support frame 12 is arranged in the roller 11 and extends along the axial direction of the roller 11. The middle part of the first scissor frame 1111 is connected to the central part of the support frame 12. The two ends of the support frame 12 are provided with the second scissor frames 1113. One end of each of the two second scissor frames 1113 is connected to the corresponding end of the support frame 12. The other end of each of the two second scissor frames 1113 is connected to the corresponding end of the first scissor frame 1111. The two second scissor frames 1113 can extend or retract along the axial direction of the roller 11. The two second scissor frames 1113 are provided with a plurality of second support assemblies 1114 arranged at equal intervals. The second support assemblies 1114 have the same structure as the first support assemblies 1112.

[0046] When the continuous rolling and extruding device works, the support frame 12 in the roller 11 extends along the axial direction of the roller 11, thereby providing a stable mounting base for the entire adjusting structure. The middle part of the first scissor frame 1111 is connected to the central part of the support frame 12, thereby forming a fulcrum for the adjusting action. When it is necessary to adjust the support state of the roller 11, the first scissor frame 1111 extends or retracts along the axial direction of the roller 11 towards the two ends of the roller 11, thereby driving the second scissor frames 1113 connected to the two ends to move synchronously. Since one end of each of the two second scissor frames 1113 is connected to the end of the support frame 12, the linkage structure enables the first scissor frame 1111 and the second scissor frames 1113 to expand or contract cooperatively. With the movement of the first scissor frame 1111, the second support assemblies 1114 arranged at equal intervals on the second scissor frames 1113 extend or retract along the radial direction of the roller 11 synchronously with the first support assemblies 1112 on the first scissor frame 1111, thereby changing the range of adhesion to the inner wall of the roller 11 and the support intensity. Therefore, the support density of different regions of the roller 11 can be accurately adjusted according to the rolling requirements of the brass strip, thereby ensuring that the roller 11 is subjected to uniform stress during the rolling process.

[0047] It should be noted that in the initial state, the first support assembly 1112 and the second support assembly 1114 on the first scissor frame 1111 and the second scissor frame 1113 are arranged in equal distance, at this time the support density inside the roll 11 is balanced in the axial direction. Through the coordinated extension and contraction of the first scissor frame 1111 and the second scissor frame 1113, the positions of the first support assembly 1112 and the second support assembly 1114 can be flexibly adjusted, so as to adjust the support density inside the roll 11. When the rolling requirement is that higher support force is needed in the middle part of the roll 11, the first scissor frame 1111 is contracted to the center and drives the second scissor frame 1113 to expand synchronously, so that the first support assembly 1112 in the central region is distributed more densely, and the second support assembly 1114 at both ends of the roll 11 is distributed relatively sparsely, thereby forming a state that the support force density is high in the middle part and low at both ends. Conversely, when the rolling requirement is that higher support force is needed at both ends of the roll 11, the first scissor frame 1111 is extended to both ends and drives the second scissor frame 1113 to contract synchronously, so that the second support assembly 1114 in the end region is distributed more densely, and the first support assembly 1112 in the central region is relatively sparse, thereby forming a state that the support force density is high at both ends and low in the center. In cooperation with the extension and contraction of the first support assembly 1112 and the second support assembly 1114 in the radial direction, the differentiated requirements of the brass strip on the support strength distribution of the roll 11 in different rolling stages can be accurately adapted, the matching of the support state and the rolling pressure is ensured, and then the extrusion precision is improved.

[0048] As shown in Figures 1 to 3 and Figure 5 : The two ends of the rack 1 are provided with mounting seats 13, the roll 11 is rotatably arranged between the two mounting seats 13, the two ends of the support frame 12 are fixedly connected with the two mounting seats 13 respectively, and the adjusting mechanism 111 is rotatably connected with the roll 11.

[0049] When the continuous rolling extrusion equipment works, the two mounting seats 13 on the rack 1 form supports for the two ends of the roll 11 respectively, so that the roll 11 can stably rotate between the two mounting seats 13 to complete the rolling of the brass strip. The supports of the two mounting seats 13 for the two ends of the roll 11 can ensure the coaxiality of the roll 11 when rotating, reduce the deflection caused by uneven force on both ends, and improve the rolling stability.

[0050] The support frame 12 in the roller 11 is fixedly connected with the mounting seat 13 at both ends, thereby keeping a static state and ensuring the accuracy and consistency of the support force adjustment and providing a stable mounting basis for the adjusting mechanism 111. The adjusting mechanism 111 is arranged on the support frame 12 and is in contact with the inner wall of the roller 11 through a rotating connection structure, which does not affect the normal rotation of the roller 11 and can transmit the support force to the roller 11 through the extension and retraction action of the adjusting mechanism 111 (for example, the first scissor frame 1111 drives the first support assembly 1112 to adjust the distribution density and strength of the support force through the extension and retraction of the first support assembly 1112), so that the support force can accurately act on different areas of the roller 11 according to the rolling requirements. Both the smoothness of the rotation of the roller 11 and the extrusion precision of the brass strip are improved through the stable support of the adjusting mechanism 111, and the reliability of the equipment in the continuous rolling process is also enhanced.

[0051] As shown in Figure 3 , Figures 5 to 10 The first support assembly 1112 includes a hydraulic cavity 11121 and a plurality of support rods 11123. The support frame 12 is provided with a sliding rail 121 extending along the axis direction of the roller 11. The hydraulic cavity 11121 is provided with a pulley 11122 matched with the sliding rail 121. The hydraulic cavity 11121 is hingedly connected with the first scissor frame 1111. The plurality of support rods 11123 are sleeved on the hydraulic cavity 11121 and can slide along the radial direction of the roller 11.

[0052] When the continuous rolling extrusion equipment is working, the hydraulic cavity 11121 of the first support assembly 1112 is matched with the sliding rail 121 extending along the axis direction of the roller 11 on the support frame 12 through the pulley 11122, so that the hydraulic cavity 11121 can slide along the sliding rail 121 to realize position adjustment. At the same time, the hydraulic cavity 11121 is hingedly connected with the first scissor frame 1111. When the first scissor frame 1111 extends and retracts, it will drive the hydraulic cavities 11121 of the plurality of first support assemblies 1112 to move synchronously on the sliding rail 121.

[0053] The plurality of support rods 11123 sleeved on the hydraulic cavity 11121 can slide along the radial direction of the roller 11 under the drive of the hydraulic system, realizing the contact or separation between the support rods 11123 and the inner wall of the roller 11. When it is necessary to adjust the support force distribution, the extension and retraction action of the first scissor frame 1111 is transmitted to the hydraulic cavity 11121 through the hinge joint, so that the hydraulic cavity 11121 moves to the target position along the sliding rail 121. Then, the hydraulic system drives the support rods 11123 to extend radially and abut against the inner wall of the roller 11. By changing the distribution density and extension length of the support rods 11123, the support force of different areas of the roller 11 can be accurately adjusted.

[0054] The hydraulic cavity 11121 is hingedly arranged with the first scissor frame 1111, the extension and retraction movement of the first scissor frame 1111 is converted into the linear sliding of the hydraulic cavity 11121, the position adjustment of the first support assembly 1112 is more flexible and accurate, and can quickly respond to different rolling requirements; the cooperation of the sliding rail 121 and the pulley 11122 provides stable guidance for the movement of the hydraulic cavity 11121, reduces the friction resistance, and ensures the stable and reliable adjustment process; the support rod 11123 driven by the hydraulic pressure can realize stepless adjustment, can accurately control the support force according to the actual stress condition of the roller 11, and improves the extrusion precision; the modular arrangement of the first support assembly 1112 makes it convenient to install and maintain, parts can be flexibly adjusted or replaced according to the production requirements, and the equipment maintenance cost is reduced; the combination of mechanical linkage and hydraulic drive of the overall structure not only ensures the flexibility of support force adjustment, but also provides sufficient support stiffness, effectively reduces the deformation of the roller 11, prolongs the service life of the equipment, and improves the rolling quality and production efficiency of the brass strip.

[0055] It should be noted that the driving of the first scissor frame 1111 is also through hydraulic drive, the central part of the support frame 12 is provided with a hydraulic drive rod which can synchronously extend and retract to both ends of the roller 11, the first support assembly 1112 located on the first scissor frame 1111 and on both sides of the hydraulic drive rod is fixedly connected with the corresponding hydraulic drive rod, so as to realize the movement of the first scissor frame 1111.

[0056] As shown in Figure 3 , Figures 5 to 10 It is shown that: the two adjacent hydraulic cavities 11121 are connected through a pipeline, and a valve is arranged on the pipeline.

[0057] The two adjacent hydraulic cavities 11121 are connected by a pipeline (not shown in the figure) and a valve (not shown in the figure) is arranged on the pipeline. The valve is preferably an electromagnetic control valve with opening degree adjustment function, which is uniformly controlled by the rear-end control system of the device, and the adjacent hydraulic cavities 11121 are equidistantly distributed along the axial direction of the roller 11, corresponding to the brass strip width detection partitions identified by the entry detection unit. When the entry detection unit detects that the thickness deviation of the brass strip to be rolled exceeds the preset threshold, or the exit detection unit feedbacks that the flatness of the rolled brass strip is abnormal, and the support state of the roller 11 needs to be adjusted, the hydraulic system provides a power source through a hydraulic pump, controls the opening and closing and opening degree of the valve, and adjusts the hydraulic oil flow and pressure balance between the adjacent hydraulic cavities 11121: for example, when a certain area needs more support force, close the valve of the corresponding pipeline, the hydraulic pump supplies oil to the hydraulic cavity 11121, as the support rod 11123 extends, the chamber volume is compressed, so that the pressure of the hydraulic cavity 11121 is independently increased, thereby driving the support rod 11123 to extend to increase the support force; when uniform support is needed, open the valve to connect the adjacent hydraulic cavities 11121, and the hydraulic oil flows between the chambers to balance the pressure. This arrangement enables the multiple hydraulic cavities 11121 to act in coordination and be controlled according to the rolling requirement partitions feedback by the entry and exit detection units, and the support force is dynamically distributed through valve adjustment.

[0058] The connection of the pipeline and the valve enhances the flexibility and controllability of the hydraulic system, enabling the device to adjust the support force distribution in real time according to the rolling requirements of different regions of the brass strip, and improving the adaptability of the device to complex working conditions; by balancing the pressure of the adjacent hydraulic cavities 11121, local stress concentration can be reduced, and deformation of the roller 11 due to uneven stress can be avoided, further improving the extrusion precision.

[0059] As shown in Figure 3 , Figures 5 to 10 , a roller 11124 is arranged on the support rod 11123 close to the roller 11.

[0060] When the roller 11 rotates, the roller 11124 rolls synchronously with the inner wall of the roller 11, converting traditional sliding friction into rolling friction, effectively reducing the contact resistance. During adjustment, the hydraulic system drives the support rod 11123 to expand and contract along the radial direction of the roller 11, and the roller 11124 always maintains rolling contact with the inner wall of the roller 11, ensuring effective transmission of support force and avoiding wear and heat accumulation caused by sliding friction. The setting of the roller 11124 significantly reduces the friction coefficient between the support rod 11123 and the inner wall of the roller 11, reduces energy loss, and improves the transmission efficiency of the equipment; the rolling contact mode avoids the influence of wear particles generated by sliding friction on the surface quality of the roller 11, prolonging the service life of the roller 11; the rolling characteristics of the roller 11124 make the support rod 11123 more responsive during movement and expansion, quickly adapting to changes in rolling parameters, and improving the dynamic performance of support adjustment; the rolling contact generates less heat, reducing the deviation of support precision caused by thermal expansion, and further improving the rolling precision of the brass strip.

[0061] As shown in Figures 1 to 5 , one end of the roller 11 is provided with a gear ring 112 fixedly connected thereto, and the mounting seat 13 is provided with a gear 131 engaged with the gear ring 112 and a first rotary drive motor 132 for driving the gear 131 to rotate.

[0062] After the first rotary drive motor 132 is started, the gear 131 on the mounting seat 13 is driven to rotate. Since the gear 131 is engaged with the gear ring 112 fixedly connected to one end of the roller 11, the rotational movement of the gear 131 is transmitted to the roller 11 through the gear ring 112, driving the roller 11 to stably rotate between the two mounting seats 13, and then continuously rolling and extruding the brass strip through the two rollers 11. In this transmission mode, the power of the first rotary drive motor 132 is directly transmitted to the roller 11 through the engagement of the gear 131 and the gear ring 112, which can accurately control the rotational speed and direction of the roller 11, ensuring that the rotational speed of the roller 11 matches the feeding rhythm of the brass strip, and the fixed connection of the gear ring 112 and the roller 11 ensures the stability of power transmission, avoiding slipping or lagging during transmission. The engagement transmission has high structural strength and can withstand large loads during rolling, avoiding damage to power transmission components and affecting equipment operation, prolonging the service life of the equipment. At the same time, the cooperation of the gear 131 and the gear ring 112 facilitates maintenance and replacement, reducing the maintenance cost of the equipment.

[0063] As shown in Figures 5 to 8 , the adjustment mechanism 111 is also provided with a distance sensor 1115 for monitoring the movement distance of the first support assembly 1112.

[0064] Through the setting of the distance sensor 1115, the moving distance of the first support assembly 1112 can be monitored in real time, and the monitoring data is transmitted to the back-end control system of the device. When the first shear fork 1111 drives the first support assembly 1112 to move along the axis direction of the roller 11, the distance sensor 1115 synchronously records the displacement amount, so as to ensure that the moving position of the first support assembly 1112 matches the parameters of the brass strip fed into the roller 11. For example, when the width of the brass strip is detected to change, the back-end control system adjusts the extension amount of the first shear fork 1111 according to the data of the distance sensor 1115, so that the first support assembly 1112 accurately moves to the corresponding rolling area, and the supporting force is ensured to act on the effective position of the roller 11. If the moving distance deviates, the distance sensor 1115 will feed back immediately, and the back-end control system quickly corrects the action of the adjusting mechanism 111, so as to avoid the imbalance of the force acting on the roller 11 due to the inaccurate position of the support assembly. The deformation of the roller 11 or the decrease of the rolling precision of the brass strip caused by the position deviation is reduced. Through the linkage of the sensor and the control system, a closed-loop adjusting mechanism is formed, the response speed of the device to the change of the rolling parameters is improved, the rolling requirements of the brass strip with different widths and materials can be quickly adapted, the automation degree of the device operation is improved, and the operation difficulty is reduced.

[0065] As shown in Figures 1 to 3 : the in-rolling detection unit and the out-rolling detection unit each 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.

[0066] When the continuous rolling and extruding device is working, the in-rolling detection unit starts to work before the brass strip enters the roller 11. The thickness sensor detects the thickness of the brass strip, the width sensor detects the width, and the laser scanning device obtains the flatness information by scanning the surface of the brass strip. These detection signals are transmitted to the data processing module, and after being processed and converted into quantitative data, they are transmitted to the back-end control system of the device, so as to provide initial basis for the adjusting mechanism 111 to adjust the parameters such as the supporting force of the roller 11 and the gap. The out-rolling detection unit detects the thickness, width and flatness of the brass strip after the rolling is completed in the same way. After the data processing module processes the data, the results are fed back to the control system, which is used to compare the parameter differences before and after the rolling, judge whether the rolling precision meets the requirements, and trigger the adjusting mechanism 111 to make targeted correction if there is deviation.

[0067] By using the same component structure for the in-rolling and out-rolling detection units, the comprehensiveness and accuracy of the detection data are ensured, the unified data format is facilitated, the compatibility with the control system is improved, the type difference of the device components is reduced, the manufacturing and maintenance costs are reduced, the consistency of the detection standard is ensured, the accuracy of the rolling parameter adjustment is further improved, and the reliability and stability of the device in continuous production are enhanced.

[0068] The above embodiments only express one or several embodiments of the present application, which are described in more detail and in more detail, but cannot be understood as limiting the protection scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A continuous rolling extrusion device, comprising a frame, a roller, an adjusting mechanism, an entry detection unit and an exit detection unit, the roller is rotatably arranged in the frame, the adjusting mechanism is arranged in the roller, the entry detection unit and the exit detection unit are respectively arranged on both sides of the frame, the adjusting mechanism comprises a first scissor frame and a plurality of first support assemblies, the first scissor frame is arranged in the roller and can extend and retract along the axial direction of the roller, the plurality of first support assemblies are equidistantly arranged on the first scissor frame and can extend and retract along the radial direction of the roller, a support frame extending along the axial direction of the roller is arranged in the roller, the middle part of the first scissor frame is connected with the central part of the support frame, the two ends of the support frame are respectively provided with a second scissor frame, one end of each of the two second scissor frames is connected with the corresponding end of the support frame, the other end of each of the two second scissor frames is connected with the two ends of the first scissor frame, and the two second scissor frames can extend and retract along the axial direction of the roller, each of the two second scissor frames is provided with a plurality of equidistantly arranged second support assemblies, the structure of the second support assemblies is the same as that of the first support assemblies, the frame is provided with a mounting seat at each end 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, the adjusting mechanism is rotatably connected with the roller, 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 axial 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 scissor 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, one end of the roller is provided with a gear ring fixedly connected therewith, the mounting seat is provided with a gear engaged with the gear ring and a first rotary driving motor for driving the gear to rotate, the adjusting mechanism is further provided with a distance sensor for monitoring the moving distance of the first support assembly, and the entry detection unit and the exit detection unit each comprise 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.

2. A continuous rolling extrusion apparatus according to claim 1, characterised in that, The two adjacent hydraulic cavities are connected through a pipeline, and the pipeline is provided with a valve.

3. A continuous rolling extrusion apparatus according to claim 1, wherein One end of the support rod close to the roller is provided with a roller.

4. A continuous rolling extrusion method for producing brass band with improved extrusion accuracy, characterized by, The continuous rolling extrusion device according to any one of claims 1-3 is used, and the device comprises a frame, a roller, an adjusting mechanism, an entry detection unit and an exit detection unit, the adjusting mechanism comprises a first scissor frame and a plurality of first support assemblies, and the extrusion method comprises the following steps: S1, before the brass strip enters the roller on the frame, the thickness, width and flatness of the to-be-rolled region of the brass strip are detected by the entry 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 scissor frame is driven to extend and retract in the roller along the axial direction, the plurality of first support assemblies are driven to equidistantly expand 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 performs continuous rolling extrusion on the brass strip. S4, after the brass strip leaves the rolling mill, the thickness, width and flatness of the rolled brass strip are detected by an exit detection unit; S5, the detection data of steps S1 and S4 are compared, if the accuracy deviation exceeds the preset threshold, step S2 is returned to readjust the supporting force until the brass strip extrusion accuracy meets the requirements.

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