Rolling mechanism for continuous extrusion and equidistant expansion of U-shaped copper material

Abstract

The utility model relates to the technical field of continuous processing of U-shaped copper materials, in particular to a rolling mechanism for continuous extrusion and equidistant expansion of U-shaped copper materials, which monitors and homogenizes rolling pressure in real time and improves production quality and efficiency. Comprising a rolling rack, an upper roller assembly and a lower roller assembly are arranged on the rolling rack, and a rolling channel for copper materials to pass through is formed between the upper roller assembly and the lower roller assembly; the upper roller assembly comprises an upper roller shaft, an upper roller wheel, an upper pressure adjusting assembly and an upper sliding block, the upper roller shaft penetrates through the upper roller wheel, the upper sliding block is rotationally connected with the upper roller shaft, the upper sliding block can slide in the vertical direction of the rolling rack, and the upper pressure adjusting assembly is used for adjusting the vertical positions of the upper sliding block and the upper roller shaft so as to control the pressure of the upper roller wheel on the copper material.

Description

Technical Field

[0001] This utility model relates to the technical field of continuous processing of U-shaped copper materials, and in particular to a roller pressing mechanism for continuous extrusion and equidistant expansion of U-shaped copper materials. Background Technology

[0002] U-shaped copper busbars play a crucial role in electrical manufacturing and power distribution systems, widely used due to their excellent overall performance and space-saving installation capabilities. Compared to traditional copper busbar production processes, the processing of U-shaped copper requires further expansion, extruding the copper rods to a thinner thickness. Roll forming is a common method for continuous processing of copper materials. However, existing roll forming machines suffer from uneven pressure during the roll forming of U-shaped copper materials. Slight positional shifts during transport and the inherent inhomogeneity of the copper material itself can lead to inconsistent pressure applied by the roll forming rollers. This uneven pressure directly affects the extrusion effect, resulting in uneven copper thickness, impacting product quality, reducing production efficiency, and increasing scrap rates. Therefore, improvements to the existing roll forming machine structure are necessary to ensure uniform pressure during the roll forming process. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a U-shaped copper material continuous extrusion equidistant expansion roller pressing mechanism that monitors and homogenizes roller pressing pressure in real time, thereby improving production quality and efficiency.

[0004] The present invention relates to a roller pressing mechanism for continuous extrusion and equidistant expansion of U-shaped copper material, comprising a roller pressing frame, an upper roller assembly and a lower roller assembly arranged on the roller pressing frame, and a roller pressing channel for copper material to pass through between the upper roller assembly and the lower roller assembly.

[0005] The upper roller assembly includes an upper roller shaft, an upper roller wheel, an upper pressure adjustment component, and an upper slider. The upper roller shaft passes through the upper roller wheel, and the upper slider is rotatably connected to the upper roller shaft. The upper slider can slide along the vertical direction of the roller press frame. The upper pressure adjustment component is used to adjust the vertical position of the upper slider and the upper roller shaft, thereby controlling the pressure of the upper roller wheel on the copper material. The lower roller assembly includes a lower roller shaft, a lower roller wheel, a lower sliding track, and a lower fixed block. The lower roller shaft passes through the lower roller wheel and is fixed to the lower roller wheel. The lower sliding track is set on the roller press frame. The lower fixed block is fixed to the lower roller shaft and can slide on the lower sliding track. A lower pressure sensor is connected to the lower fixed block to detect the pressure on the lower roller wheel.

[0006] The lower pressure sensor is electrically connected to the upper pressure regulating component.

[0007] Furthermore, the upper pressure adjustment assembly includes an upper hydraulic cylinder, an upper hydraulic controller, and an upper pressure sensor. The cylinder body of the upper hydraulic cylinder is fixed to the roller press frame, and the telescopic end of the upper hydraulic cylinder is connected to the upper slider. The upper pressure sensor is connected to the upper roller shaft to detect the pressure applied by the upper roller to the U-shaped copper material. The upper hydraulic controller is connected to the upper hydraulic cylinder, the upper pressure sensor, and the lower pressure sensor respectively, and is used to control the telescopic amount of the upper hydraulic cylinder according to the signals fed back by the upper pressure sensor and the lower pressure sensor.

[0008] Furthermore, rollers are provided at the four corners of the upper slider, and the rollers cooperate with the vertical slide rails of the roller press frame.

[0009] Furthermore, the upper pressure sensor is a thin-film pressure sensor, and there are two of them, which are symmetrically arranged at both ends of the upper roller shaft.

[0010] Furthermore, the surface of the lower sliding track is provided with a wear-resistant coating.

[0011] Furthermore, the lower fixed block is connected to the lower roller shaft by a key, and the contact surface between the lower fixed block and the lower sliding track is a plane.

[0012] Furthermore, auxiliary positioning components are provided on both sides of the roller press frame. The auxiliary positioning components include a positioning slide, a positioning slider, and a positioning cylinder. The positioning slide is parallel to the conveying direction. The positioning slider slides in sliding engagement with the positioning slide. The cylinder body of the positioning cylinder is fixed to the positioning slide. The telescopic end of the positioning cylinder is connected to the positioning slider. The upper surface of the positioning slider is provided with a positioning groove.

[0013] Furthermore, the surface of the positioning slide is provided with a lubricating oil storage tank, and the bottom of the lubricating oil storage tank is provided with multiple oil outlet microholes.

[0014] Furthermore, a protective cover is provided on the top of the roller press frame, and the protective cover is detachably connected to the roller press frame.

[0015] Furthermore, the surfaces of the upper and lower rollers are provided with a wear-resistant layer, which is made of hard alloy material.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The upper pressure regulating component and the lower pressure sensor work together to monitor and adjust the rolling pressure of the upper roller on the copper material in real time, ensuring uniform pressure. The upper pressure sensor detects the pressure on the upper roller and feeds the signal back to the upper hydraulic controller. The upper hydraulic controller adjusts the extension and retraction of the upper hydraulic cylinder according to the feedback signal, so that the pressure between the upper roller and the copper material reaches a suitable and uniform state. The lower pressure sensor assists in detecting the pressure on the lower roller. When the copper material exerts uneven pressure on the lower roller, the feedback data from the lower pressure sensor can help judge the overall pressure balance and further guide the adjustment of the upper pressure regulating device. The auxiliary positioning component ensures that the copper material is accurately conveyed before rolling, preventing positional deviation from affecting the uniformity of rolling pressure. The wear-resistant layer, wear-resistant coating, and lubrication measures can effectively improve the durability of the equipment and the stability of the rolling process. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0020] Figure 2 This is a front view structural diagram of the present invention;

[0021] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0023] The attached diagram shows the following components: 1. Roller press frame; 2. Upper roller assembly; 21. Upper roller shaft; 22. Upper roller wheel; 23. Upper pressure adjustment assembly; 231. Upper hydraulic cylinder; 233. Upper pressure sensor; 24. Upper slider; 241. Roller; 3. Lower roller assembly; 31. Lower roller shaft; 32. Lower roller wheel; 33. Lower sliding track; 34. Lower fixed block; 35. Lower pressure sensor; 4. Auxiliary positioning assembly; 41. Positioning slide; 411. Lubricating oil storage tank; 412. Oil outlet micro-hole; 42. Positioning slider; 421. Positioning groove; 43. Positioning cylinder; 5. Protective cover; 6. Wear-resistant layer. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] like Figures 1 to 4As shown, the U-shaped copper material continuous extrusion equidistant expansion roller pressing mechanism of this utility model includes a roller pressing frame 1, on which an upper roller assembly 2 and a lower roller assembly 3 are arranged, forming a roller pressing channel for the copper material to pass through. In the embodiment of this application, the roller pressing frame 1 serves as the basic support structure of the entire equipment, providing a platform for the installation and operation of the upper roller assembly 2 and the lower roller assembly 3. The design of the roller pressing channel ensures that the copper material can maintain a stable conveying path during the roller pressing process, while providing a structural basis for pressure regulation.

[0026] In the embodiments of this application, the upper roller assembly 2 includes an upper roller shaft 21, an upper roller wheel 22, an upper pressure adjustment assembly 23, and an upper slider 24. The upper roller shaft 21 passes through the upper roller wheel 22, ensuring that the upper roller wheel 22 can rotate stably around the upper roller shaft 21, providing a power basis for applying roller pressure to the copper material. The upper slider 24 is rotatably connected to the upper roller shaft 21. This connection method allows the upper roller shaft 21 and the upper roller wheel 22 to maintain flexible rotation while moving with the upper slider 24. The upper slider 24 can slide along the vertical direction of the roller press frame 1. The upper pressure adjustment assembly 23 is used to adjust the vertical position of the upper slider 24 and the upper roller shaft 21 to control the pressure of the upper roller wheel 22 on the copper material, thereby enabling dynamic adjustment according to the thickness, material, and roller pressing process requirements of the copper material.

[0027] In the embodiments of this application, the lower roller assembly 3 includes a lower roller shaft 31, a lower roller 32, a lower sliding track 33, and a lower fixed block 34. The lower roller shaft 31 passes through and is fixed to the lower roller 32, ensuring the synchronicity between the lower roller 32 and the lower roller shaft 31 when rotating, thus ensuring the stability of the rolling process. The lower sliding track 33 is disposed on the rolling press frame 1, providing a stable guiding effect for the sliding of the lower fixed block 34. The lower fixed block 34 is fixed to the lower roller shaft 31 and can slide on the lower sliding track 33. A lower pressure sensor 35 is connected to the lower fixed block 34 to detect the pressure on the lower roller 32. Since the pressure on the lower roller 32 and the upper roller 22 should maintain a certain balance during the rolling process of the copper material, the pressure data detected by the lower pressure sensor 35 is required.

[0028] In the embodiments of this application, the lower pressure sensor 35 is electrically connected to the upper pressure adjustment component 23; this design constructs a closed-loop pressure adjustment system; when the lower pressure sensor 35 detects a change in the pressure on the lower roller 32, such as when the force on one side of the lower roller 32 increases or decreases due to copper material displacement, uneven material, etc., the lower pressure sensor 35 will quickly transmit this pressure change signal to the upper pressure adjustment component 23; after receiving the signal, the upper pressure adjustment component 23 can quickly analyze and respond, and by adjusting its own working state, it changes the vertical position of the upper slider 24 and the upper roller shaft 21, thereby adjusting the pressure of the upper roller 22 on the copper material, so that the pressure applied by the upper roller 22 and the lower roller 32 on the copper material reaches a new equilibrium state, ensuring that the copper material is subjected to uniform pressure during the rolling process, and effectively avoiding the quality problem of uneven copper material thickness caused by uneven pressure.

[0029] In some embodiments of this application, the upper pressure regulating assembly 23 includes an upper hydraulic cylinder 231, an upper hydraulic controller, and an upper pressure sensor 233. The cylinder body of the upper hydraulic cylinder 231 is fixed to the roller press frame 1, forming a stable power base. Its telescopic end is connected to the upper slider 24, converting hydraulic energy into mechanical displacement to directly drive the upper roller assembly 2 to move up and down. This driving method has the characteristics of fast response speed and stable driving force, and can adjust the distance between the upper roller 22 and the copper material in a short time according to the control command, providing power guarantee for pressure regulation. The upper pressure sensor 233 is connected to the upper roller shaft 21 for detection. The pressure applied by the upper roller 22 to the U-shaped copper material is controlled by an upper hydraulic controller that is connected to the upper hydraulic cylinder 231, the upper pressure sensor 233, and the lower pressure sensor 35. The controller controls the extension and retraction of the upper hydraulic cylinder 231 based on the signals fed back from the upper pressure sensor 233 and the lower pressure sensor 35. Throughout the rolling process, the pressure changes are continuously monitored by the upper pressure sensor 233 and the lower pressure sensor 35, and the real-time data is fed back to the upper hydraulic controller. The upper hydraulic controller continuously adjusts the extension and retraction of the upper hydraulic cylinder 231 based on the feedback signals to ensure that the rolling pressure is always kept within the target range and to achieve dynamic balance.

[0030] In some embodiments of this application, rollers 241 are provided at the four corners of the upper slider 24, and the rollers 241 cooperate with the vertical slide rails of the roller press frame 1; the rollers 241 are connected to the upper slider 24 through bearings and can rotate freely around the axis; the even distribution of the four rollers 241 ensures that the upper slider 24 is subjected to uniform force in the vertical direction, reduces local wear and jamming, and improves the smoothness of movement; rolling friction has less resistance than sliding friction, reduces the hydraulic cylinder drive load, and improves the movement efficiency.

[0031] In some embodiments of this application, the upper pressure sensor 233 is a thin-film pressure sensor, and there are two of them, which are symmetrically arranged at both ends of the upper roller 21. The thin-film pressure sensor is a pressure detection element based on flexible thin-film material. Its core principle is to sense the deformation of the thin film under pressure and convert the pressure signal into an electrical signal for output. It has high sensitivity, fast response and good flexibility. Through the symmetrical arrangement of the thin-film pressure sensors at both ends, the pressure difference between the two ends can be accurately captured and the signal can be fed back to the upper hydraulic controller. The controller dynamically adjusts the extension and retraction of the upper hydraulic cylinder 231 according to the feedback signal to ensure that the pressure at both ends of the upper roller is uniform, thereby achieving overall pressure balance.

[0032] In some embodiments of this application, since the lower sliding track 33 is the core component for the sliding of the lower fixed block 34, its surface directly bears the reciprocating friction of the lower fixed block 34. Long-term use can easily lead to wear, affecting sliding accuracy and equipment lifespan. To provide protection, the surface of the lower sliding track 33 is provided with a wear-resistant coating. The wear-resistant coating is a functional material coating, typically made of polymer, ceramic particles, or composite wear-resistant materials, which can significantly improve the surface hardness and wear resistance of the sliding track. By applying the wear-resistant coating, the surface hardness of the lower sliding track 33 is significantly improved, resisting repeated friction from the lower fixed block 34 and reducing surface scratches and material loss. Simultaneously, the wear-resistant coating also has a low coefficient of friction, further reducing sliding resistance and ensuring smoother and more stable movement of the lower fixed block 34 on the track.

[0033] In some embodiments of this application, the lower fixed block 34 and the lower roller shaft 31 are connected by a key to ensure that they can rotate synchronously and transmit torque; the contact surface between the lower fixed block 34 and the lower sliding track 33 is a plane, which further optimizes the sliding performance; the plane contact can provide a larger contact area, evenly distribute the sliding friction, reduce local stress concentration, thereby reducing wear and improving the smoothness of movement; in addition, the plane contact can also better adapt to the surface of the lower sliding track 33, ensuring the straightness and stability of the lower fixed block 34 sliding on the track.

[0034] In some embodiments of this application, auxiliary positioning components 4 are also provided on both sides of the roller press frame 1 to accurately position the U-shaped copper material before it enters the roller pressing channel, preventing uneven roller pressing pressure or unstable equipment operation due to copper material deviation. The auxiliary positioning components 4 include a positioning slide 41, a positioning slider 42, and a positioning cylinder 43. The positioning slide 41 is parallel to the conveying direction, the positioning slider 42 is slidably engaged with the positioning slide 41, the cylinder body of the positioning cylinder 43 is fixed to the positioning slide 41, and the telescopic end of the positioning cylinder 43 is connected to the positioning slider 42 to drive the positioning slider 42. The positioning slider 42 moves along the slide rail to achieve precise positioning. The upper surface of the positioning slider 42 is provided with a positioning groove 421. The shape of the positioning groove matches the shape of the copper material, which can effectively support and position the copper material. Before the copper material enters the roller pressing channel, the positioning cylinder 43 drives the positioning slider 42 to move along the slide rail to the appropriate position, so that the copper material accurately enters the positioning groove 421 and ensures that its conveying path is aligned with the roller pressing channel. The surface of the positioning groove 421 is usually polished to reduce the frictional resistance of the copper material during the conveying process. At the same time, the edge of the positioning groove 421 is designed with rounded corners to avoid scratching the surface of the copper material.

[0035] The surface of the positioning slide 41 is provided with a lubricating oil storage tank 411, and the bottom of the lubricating oil storage tank 411 is provided with multiple oil outlet microholes 412, which provide continuous lubrication for the sliding between the positioning slider 42 and the positioning slide 41, reduce direct contact between metals, and reduce friction and wear.

[0036] In some embodiments of this application, a protective cover 5 is provided on the top of the roller press frame 1 to protect the roller press equipment and provide a safe operating environment; it allows operators to observe the working conditions in the roller press channel in real time during equipment operation, including the copper material conveying status, roller pressure distribution, and equipment operating status; the protective cover 5 is detachably connected to the roller press frame 1, and the connection method may include bolt fixing, snap-fit ​​connection, or slot engagement, etc. This design facilitates the installation, disassembly, and maintenance of the protective cover 5. Especially when the equipment is being repaired or the rollers are being replaced, the operator can quickly remove the protective cover 5, improving the equipment maintenance efficiency. At the same time, the detachable connection can also adapt to different models of roller press frames 1, enhancing the versatility of the protective cover 5.

[0037] In some embodiments of this application, the surfaces of the upper roller 22 and the lower roller 32 are provided with a wear-resistant layer 6, which is made of hard alloy material; this ensures that the rollers maintain good surface accuracy and shape during long-term use, avoids problems such as uneven surface and uneven thickness of copper material caused by roller wear, and effectively guarantees the quality of copper material roll forming.

[0038] The U-shaped copper material continuous extrusion equidistant expansion roller pressing mechanism of this utility model, during operation, the upper hydraulic cylinder 231 in the upper pressure regulating component 23 adjusts the vertical position of the upper slider 24 and the upper roller shaft 21 in real time according to the signals fed back by the upper pressure sensor 233 and the lower pressure sensor 35, thereby controlling the pressure of the upper roller 22 on the copper material; the lower pressure sensor 35 detects the pressure on the lower roller 32 in real time and transmits the signal to the upper hydraulic controller, forming a closed-loop pressure regulating system to ensure that the pressure applied to the copper material by the upper roller 22 and the lower roller 32 is balanced; the upper roller 22 and the lower roller 32 continuously extrude the copper material during rotation, during which the upper pressure sensor 233 and the lower pressure sensor 35 continuously monitor the pressure changes and feed back the real-time data to the upper hydraulic controller, the upper hydraulic controller continuously adjusts the extension and retraction of the upper hydraulic cylinder 231 according to the feedback signal to ensure that the roller pressing pressure is always kept within the target range.

[0039] The U-shaped copper material continuous extrusion equidistant expansion roller pressing mechanism of this utility model has common mechanical methods in terms of installation, connection or setting. As long as it can achieve its beneficial effect, it can be implemented.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A roller pressing mechanism for continuous extrusion and equidistant expansion of U-shaped copper material, characterized in that, It includes a roller press frame (1), on which an upper roller assembly (2) and a lower roller assembly (3) are provided, and a roller pressing channel for copper material to pass through is formed between the upper roller assembly (2) and the lower roller assembly (3); The upper roller assembly (2) includes an upper roller shaft (21), an upper roller wheel (22), an upper pressure adjustment assembly (23), and an upper slider (24). The upper roller shaft (21) passes through the upper roller wheel (22). The upper slider (24) is rotatably connected to the upper roller shaft (21). The upper slider (24) can slide along the vertical direction of the roller press frame (1). The upper pressure adjustment assembly (23) is used to adjust the vertical position of the upper slider (24) and the upper roller shaft (21) to control the pressure of the upper roller wheel (22) on the copper material. The lower roller assembly (3) includes a lower roller shaft (31), a lower roller (32), a lower sliding track (33), and a lower fixing block (34). The lower roller shaft (31) passes through the lower roller (32) and is fixed to the lower roller (32). The lower sliding track (33) is set on the roller press frame (1). The lower fixing block (34) is fixed to the lower roller shaft (31) and can slide on the lower sliding track (33). A lower pressure sensor (35) is connected to the lower fixing block (34) to detect the pressure on the lower roller (32). The lower pressure sensor (35) is electrically connected to the upper pressure regulating component (23).

2. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, characterized by, The upper pressure regulating component (23) includes an upper hydraulic cylinder (231), an upper hydraulic controller, and an upper pressure sensor (233). The cylinder body of the upper hydraulic cylinder (231) is fixed to the roller press frame (1). The telescopic end of the upper hydraulic cylinder (231) is connected to the upper slider (24). The upper pressure sensor (233) is connected to the upper roller shaft (21) to detect the pressure applied by the upper roller (22) to the U-shaped copper material. The upper hydraulic controller is connected to the upper hydraulic cylinder (231), the upper pressure sensor (233), and the lower pressure sensor (35) respectively, and is used to control the telescopic amount of the upper hydraulic cylinder (231) according to the signals fed back by the upper pressure sensor (233) and the lower pressure sensor (35).

3. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 2, characterized by, Rollers (241) are provided at the four corners of the upper slider (24), and the rollers (241) cooperate with the vertical slide of the roller press frame (1).

4. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 2, wherein The upper pressure sensor (233) is a thin film pressure sensor, and there are two of them, which are symmetrically arranged at both ends of the upper roller (21).

5. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, wherein The surface of the lower sliding track (33) is provided with a wear-resistant coating.

6. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, wherein The lower fixing block (34) is connected to the lower roller shaft (31) by a key, and the contact surface between the lower fixing block (34) and the lower sliding track (33) is a plane.

7. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, wherein The roller press frame (1) is also provided with auxiliary positioning components (4) on both sides. The auxiliary positioning components (4) include positioning slide (41), positioning slider (42) and positioning cylinder (43). The positioning slide (41) is parallel to the conveying direction. The positioning slider (42) is slidably engaged with the positioning slide (41). The cylinder body of the positioning cylinder (43) is fixed to the positioning slide (41). The telescopic end of the positioning cylinder (43) is connected to the positioning slider (42). The upper surface of the positioning slider (42) is provided with a positioning groove (421).

8. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 7, wherein The surface of the positioning slide (41) is provided with a lubricating oil storage tank (411), and the bottom of the lubricating oil storage tank (411) is provided with a plurality of oil outlet microholes (412).

9. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, wherein The top of the roller press frame (1) is provided with a protective cover (5), and the protective cover (5) is detachably connected to the roller press frame (1).

10. The U-shaped copper material continuous extrusion equidistant expansion roll press mechanism according to claim 1, wherein The surfaces of the upper roller (22) and the lower roller (32) are provided with a wear-resistant layer (6), which is made of hard alloy material.

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