A stress relief mechanism for a rolled copper strip

Abstract

The utility model relates to calendered copper band processing technical field, concretely relates to a kind of calendered copper band stress relief mechanism, including two groups of counter-roller groups being oppositely arranged on heating table, for driving two groups of counter-roller groups simultaneous operation driving part;Two counter-rollers are rotatably arranged between two groups of counter-roller groups;Two fixed arms are oppositely fixed on heating table;Compression part is arranged on fixed arm and corresponds with counter-roller, it is used to and counter-roller and copper band are fixed by compressing tightly.The utility model is by the mutual cooperation of two compression parts and counter-roller, the copper sheet of large length, strip is divided into several sections, and each copper sheet is fixed in turn, while, cooperate driving part and drive each copper sheet to reciprocating type rolling by releasing strength part, while, the temperature of each copper sheet is maintained at optimum stress relief 180 DEG C under the heating and heat preservation of heater, improve the stability and continuity of copper sheet stress relief when copper sheet stress elimination.

Description

Technical Field

[0001] This utility model relates to the field of rolled copper strip processing technology, and in particular to a stress relief mechanism for rolled copper strip. Background Technology

[0002] Copper sheet is one of the most widely used non-ferrous metals. In the production process, copper sheets are generally produced by heating, stretching, and rolling copper rods into long rolled copper strips. Although stress relief is performed before winding, some rolling stress remains on the rolled copper strip. This stress needs to be completely eliminated during subsequent unwinding to ensure that residual stress does not affect the accuracy of subsequent finishing processes. In existing technologies, most stress relief devices use a single timed heating method to eliminate stress. Because no rolling pressure is used during the heating process, the copper strip is prone to deformation, affecting the subsequent processing effect and efficiency.

[0003] To address the aforementioned technical problems, prior art patent application number 202421289920.5 discloses a stress relief device for non-ferrous metal rolled copper strip. This device uses a lower pressure roller frame to roll heated copper strips, preventing deformation caused by heat during stress relief. Air blowers are installed on both sides of the lower pressure roller frame, supplying cold air via a cooling fan. This synchronizes the movement of the air blowers with the lower pressure roller frame, promptly cooling the rolled copper strips and increasing their cooling rate. In the aforementioned prior art, because the copper strips are long strips during production or winding, the copper strips are not fixed during stress relief. Therefore, as the lower pressure roller frame moves linearly and rotates, various external forces applied by the lower pressure roller frame cause the unfixed copper strips to randomly shift in different directions, affecting the stress relief effect of the rolling process. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a stress relief mechanism for rolled copper strip, so as to solve the problem that when the lower pressure roller moves linearly and rotates, the unfixed copper strip will randomly shift in different directions due to the influence of various external forces applied by the lower pressure roller, thus affecting the stress relief effect of the copper strip under rolling.

[0005] Based on the above objectives, this utility model provides a stress relief mechanism for rolled copper strip, including two sets of rollers arranged opposite each other on a heating table, and a driving component for driving the two sets of rollers to operate simultaneously. Two opposing rollers are arranged in parallel and rotate between two sets of opposing rollers; Two fixed arms are mounted on the heating platform; A pressing part is provided on the fixed arm and corresponds to the opposing roller. It is used to press and fix the copper strip against the opposing roller. A slide rail fixed between two fixed arms; A movable arm installed within the slide rail; A tension relief section is located on the movable arm; The drive unit, which drives the moving arm to reciprocate linearly, moves the stress relief unit synchronously while the moving arm moves, thereby repeatedly rolling the copper strip fixed between two opposing rollers and eliminating the stress on the copper strip.

[0006] Preferably, the roller assembly includes a support arm fixed to the heating table and opposite to the slide rail. An upper roller and a lower roller are vertically arranged side by side and rotated between the support arm and the slide rail. A linkage is provided between the upper roller and the lower roller, and the linkage is used to link the upper roller and the lower roller to rotate synchronously in opposite directions.

[0007] Preferably, the driving component includes a small gear fixed on the same end of the two upper rollers, a toothed belt meshing between the outer sides of the two small gears, and a drive motor fixed on one of the support arms. The output end of the drive motor is fixedly connected to one end of the adjacent upper roller, so as to drive the two upper rollers to rotate synchronously in the same direction.

[0008] Preferably, the stress relief mechanism further includes an air cooler located at the boundary of the heating table and between one of the sets of rollers. The air cooler is located downstream in the copper strip conveying direction, and the air cooler and the drive motor share the same control switch and power supply. The angle between the plane where the air outlet of the air cooler is located and the top of the copper strip is less than 90° and greater than 0°.

[0009] Preferably, the structure of the tension-releasing part is the same as that of the pressing part, and the tension-releasing part is located between the two pressing parts.

[0010] Preferably, the tension relief part includes a telescopic cylinder vertically fixed on the movable arm, a pressure roller frame is fixedly provided at the output end of the telescopic cylinder, a lower pressure roller is rotatably provided inside the pressure roller frame, at least one guide rod is fixedly provided on the pressure roller frame, and one end of the guide rod is inserted and connected to a limiting hole provided on the movable arm.

[0011] Preferably, the distance between the two end faces of the lower pressure roller is greater than the width of the copper strip, and the three lower pressure rollers move up and down synchronously.

[0012] Preferably, the top of the opposing roller is at the same height as the top of the lower roller, and the distance between the two end faces of the opposing roller is greater than the width of the copper strip.

[0013] The beneficial effects of this utility model are: This invention utilizes the cooperation of two sets of pressing parts and opposing rollers to divide a long, strip-shaped copper sheet into several segments, and then fixes each segment sequentially. Simultaneously, the driving part drives the stress-relieving part to reciprocate and roll each segment of copper sheet. Meanwhile, the temperature of each segment of copper sheet is maintained at the optimal stress-relieving temperature of 180°C under the heating and heat preservation of the heater, improving the stability and continuity of stress relief. Furthermore, each stress-relieved copper sheet is conveyed by the conveying part and passes under the output port of the air cooler located outside the heating zone, where it is rapidly cooled by air, achieving a highly efficient shaping effect. At the same time, the air cooler and the conveying part share the same power switch to maintain synchronized operation, preventing the air cooler from affecting the temperature of the copper strip during stress relief and thus impacting the stress relief effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ; Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ; Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 ; Figure 4 This is a three-dimensional illustration of the present invention. Figure 4 .

[0016] The diagram is marked as follows: 1. Slide rail; 2. Moving arm; 3. Drive unit; 4. Relief unit; 41. Telescopic cylinder; 42. Pressure roller frame; 43. Guide rod; 44. Limiting hole; 5. Fixed arm; 6. Pressing unit; 7. Drive component; 8. Opposing roller; 9. Air cooler; 10. Opposing roller group; 11. Linkage component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 4 As shown, a stress relief mechanism for rolled copper strip includes two sets of roller groups 10 arranged opposite each other on a heating table. Each roller group 10 includes a support arm fixed on the heating table and opposite to a slide rail 1. An upper roller and a lower roller are arranged vertically side by side between the support arm and the slide rail 1. A linkage 11 is provided between the upper roller and the lower roller. The linkage 11 is used to link the upper roller and the lower roller to rotate synchronously in opposite directions. A drive 7 is used to drive the two sets of roller groups 10 to operate simultaneously. The drive 7 includes a small gear fixed on the same end of the two upper rollers. A toothed belt is meshed between the two small gears. A drive motor is fixed on one of the support arms. The output end of the drive motor is fixedly connected to one end of the adjacent upper roller to realize the synchronous and same-direction rotation of the two upper rollers.

[0020] Two opposing rollers 8 are arranged in parallel between two sets of opposing roller groups 10. The top of the opposing roller 8 is at the same height as the top of the lower roller, and the distance between the two end faces of the opposing roller 8 is greater than the width of the copper strip. Before eliminating the stress on the copper strip, one end of the copper strip coil is passed horizontally through the top of one of the lower rollers, the two opposing rollers 8 and the remaining lower roller in sequence.

[0021] Two fixed arms 5 are provided, which are relatively fixed on the heating platform.

[0022] A pressing part 6 is provided on the fixed arm 5 and corresponds to the counter roller 8. It is used to press and fix the copper strip against the counter roller 8.

[0023] The slide 1 is fixed between the two fixed arms 5.

[0024] The movable arm 2 and the fixed arm 5 are both in the shape of a "7" and are located in the slide rail 1. The crossbars on both extend above the copper strip between the two roller groups 10.

[0025] The tension release part 4 is provided on the moving arm 2. The structure of the tension release part 4 is the same as that of the pressing part 6. The copper strip is located in the middle below the tension release part 4 and the pressing part 6. The tension release part 4 is located between the two pressing parts 6. The tension release part 4 includes a telescopic cylinder 41 fixed vertically on the moving arm 2. The output end of the telescopic cylinder 41 is fixedly provided with a pressure roller frame 42. A lower pressure roller is rotatably provided inside the pressure roller frame 42. At least one guide rod 43 is fixedly provided on the pressure roller frame 42. One end of the guide rod 43 is inserted and connected to the limiting hole 44 provided on the moving arm 2. The distance between the two end faces of the lower pressure roller is greater than the width of the copper strip. The three lower pressure rollers rise and fall synchronously. In this way, the descent height can be kept consistent, and the descent distance of the lower pressure roller in the tension release part 4 is not greater or less than the descent distance of the other two lower pressure rollers, which would affect the pressure between the tension release part 4 and the copper strip and the effect of subsequent rolling.

[0026] The drive unit 3, which drives the moving arm 2 to move back and forth linearly, drives the stress relief unit 4 to move synchronously while the moving arm 2 moves, so as to repeatedly roll and eliminate the stress on the copper strip fixed between the two opposing rollers 8.

[0027] By pressing down on the two opposing rollers 8 with two sets of clamping parts 6, the copper strip between the two opposing rollers 8 can be pressed and fixed. Then, the moving arm 2 and the stress relief part 4 can be driven by the drive part 3 to move back and forth linearly on the copper strip between the two opposing rollers 8, thereby achieving the rolling of the copper strip. Combined with the heating table to heat the copper strip, the temperature of the copper strip is kept at about 180°C. By combining heating and rolling, the efficiency of stress relief of the copper strip is improved. After one stress relief operation, the drive part 7 drives the two sets of opposing rollers 10 to run synchronously, transporting the copper strip with stress relieved between the two opposing rollers 8 away and simultaneously transporting the copper strip with unrelieved stress to the two opposing rollers 8 at a fixed length. By repeating the above operation, the long copper strip can be divided into several segments, and each segment of copper strip can be fixed and stress relieved in sequence, improving the stability of copper strip stress relief and the continuity of multiple copper strip stress relief operations.

[0028] like Figures 1 to 3 As shown, the stress relief mechanism also includes an air cooler 9 located at the boundary of the heating table and between one of the sets of rollers 10. The air cooler 9 is located downstream of the copper strip conveying direction, and the air cooler 9 and the drive motor share the same control switch and power supply. The angle between the plane where the air outlet of the air cooler 9 is located and the top of the copper strip is less than 90° and greater than 0°. Each time the two sets of rollers 10 are driven by the drive unit 7, the stress-relieved copper strip will be conveyed to the next process. During this process, the copper strip will first pass under the air outlet of the air cooler 9 located outside the heating area and be quickly cooled by air to achieve a high-efficiency shaping effect. At the same time, the air cooler and the conveying unit share the same power switch to maintain synchronous operation and avoid the air cooler from operating during stress relief and affecting the temperature of the copper strip during stress relief, thus affecting the stress relief effect.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0030] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stress relief mechanism for rolled copper strip, comprising two sets of opposing rollers (10) disposed on a heating table, and a driving member (7) for driving the two sets of opposing rollers (10) to operate simultaneously, characterized in that: Two opposing rollers (8) are arranged in parallel between two sets of opposing rollers (10). Two fixed arms (5) are provided on the heating platform and are relatively fixed. A pressing part (6) is provided on the fixed arm (5) and corresponds to the opposing roller (8), which is used to press and fix the copper strip against the opposing roller (8); A slide (1) is fixed between two fixed arms (5); A movable arm (2) is installed in the slide (1); A release part (4) is provided on the movable arm (2); The drive unit (3) is used to drive the moving arm (2) to move back and forth in a linear motion. While the moving arm (2) moves, it drives the stress relief unit (4) to move synchronously, so as to repeatedly roll the copper strip fixed between the two opposing rollers (8) and eliminate the stress on the copper strip.

2. The stress relief mechanism for rolled copper strip according to claim 1, characterized in that, The roller assembly (10) includes a support arm fixed on the heating table and opposite to the slide (1). The support arm and the slide (1) are vertically arranged side by side with an upper roller and a lower roller. A linkage (11) is provided between the upper roller and the lower roller. The linkage (11) is used to link the upper roller and the lower roller to rotate synchronously in opposite directions.

3. The stress relief mechanism for rolled copper strip according to claim 2, characterized in that, The driving component (7) includes a small gear fixed on the same end of the two upper rollers, and a toothed belt meshes between the two small gears. A drive motor is fixed on one of the support arms, and the output end of the drive motor is fixedly connected to one end of the adjacent upper roller to drive the two upper rollers to rotate synchronously in the same direction.

4. The stress relief mechanism for rolled copper strip according to claim 3, characterized in that, The stress relief mechanism also includes an air cooler (9) located at the boundary of the heating table and between one of the sets of rollers (10). The air cooler (9) is located downstream of the copper strip conveying direction. The air cooler (9) and the drive motor share the same control switch and power supply. The angle between the plane where the air outlet of the air cooler (9) is located and the top of the copper strip is less than 90° and greater than 0°.

5. The stress relief mechanism for rolled copper strip according to claim 1, characterized in that, The structure of the tension release part (4) is the same as that of the pressing part (6), and the tension release part (4) is located between the two pressing parts (6).

6. The stress relief mechanism for rolled copper strip according to claim 5, characterized in that, The tension release part (4) includes a telescopic cylinder (41) vertically fixed on the movable arm (2). The output end of the telescopic cylinder (41) is fixedly provided with a pressure roller frame (42). A lower pressure roller is rotatably provided inside the pressure roller frame (42). At least one guide rod (43) is fixedly provided on the pressure roller frame (42). One end of the guide rod (43) is inserted and connected to a limiting hole (44) provided on the movable arm (2).

7. The stress relief mechanism for rolled copper strip according to claim 6, characterized in that, The distance between the two end faces of the lower pressure roller is greater than the width of the copper strip, and the three lower pressure rollers move up and down synchronously.

8. The stress relief mechanism for rolled copper strip according to claim 2, characterized in that, The top of the opposing roller (8) is at the same height as the top of the lower roller, and the distance between the two end faces of the opposing roller (8) is greater than the width of the copper strip.

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