Feeding straightening structure for rolling mill
By using multiple straightening rollers and a wire feeding mechanism on the rolling mill, the lateral curvature of the metal wire is eliminated, solving the problem of residual curvature after the metal wire is unrolled. This improves the straightness and processing quality of the metal wire, and enables adaptability to multiple specifications of wire and continuity of the processing system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN TIMES MINXIN TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-05
AI Technical Summary
In the prior art, after the metal wire is unwound, the radial winding stress during the winding of the roll results in residual curvature, causing it to be in a non-linear state when entering the rolling mill. This leads to uneven distribution of rolling pressure and affects the processing quality of the metal wire.
Multiple straightening rollers and a wire feeding mechanism are used. By alternating the straightening rollers and moving the lead screw-driven slide, top contact pressure is applied to eliminate the lateral curvature of the metal wire. Synchronous translation is achieved through multi-lead screw linkage control technology, which precisely adjusts the positioning of the metal wire as it enters the rolling mill.
It significantly improves the overall straightness of the metal wire, enhances the processing quality of the metal wire, and ensures the compatibility of multiple wire specifications and the continuity of the processing system.
Smart Images
Figure CN224195600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor metal wire processing, and in particular to a feeding and straightening structure for a rolling mill. Background Technology
[0002] In the manufacturing of precision semiconductor devices, the consistency of the metal wire diameter is a key parameter affecting the bonding strength and the stability of electrical signal transmission. Typically, the wire needs to be gradually compressed to the target size through multiple rolling processes.
[0003] In existing technologies, metal wires to be processed are mostly stored in the form of rolls. Before rolling, the wires need to be unrolled and pulled to the entrance of the rolling mill. However, this process has significant drawbacks. Due to the radial winding stress on the wires during roll winding, a persistent curvature remains after unrolling. This causes the wires to be non-linear when entering the rolling mill. The curvature causes the wires to shift laterally between the rolls, resulting in uneven distribution of rolling pressure. This leads to scratches on the surface of the metal wires after processing, affecting the yield of high-end semiconductor products. Utility Model Content
[0004] The purpose of this invention is to provide a feeding and straightening structure for a rolling mill, which straightens the metal wire through multiple straightening rollers and positions the metal wire at the entrance of the rolling mill.
[0005] The technical solution adopted by the feeding and straightening structure for a rolling mill disclosed in this utility model is as follows:
[0006] The device includes a base, two pairs of straightening rollers, and a wire feeding mechanism. The base has multiple mounting slots, within which a lead screw is rotatably connected. A slide block is slidably connected to the lead screw, and the slide block slides in contact with the inner wall of the mounting slot. A straightening roller is rotatably connected to the slide block, and an annular wire groove is formed on the outer side of each straightening roller. All of the wire grooves are parallel to each other. Two pairs of supports extend from the base, and the two pairs of straightening rollers are rotatably connected to the two pairs of supports respectively. The straightening rollers and the straightening rollers are perpendicular to each other, and there is a certain distance between the two pairs of straightening rollers. The base has a wire guide area that passes between the two straightening rollers of the same pair. The multiple straightening rollers are arranged alternately on the left and right sides of the wire guide area. The straightening rollers are close to the wire feeding mechanism, and the straightening rollers are close to the entrance of the rolling mill.
[0007] As a preferred embodiment, one end of the lead screw extends out of the base, and a handwheel is fixedly connected to one end of the lead screw.
[0008] As a preferred embodiment, a first bearing is fitted onto the slide block, and the straightening roller is fitted onto the outside of the first bearing.
[0009] As a preferred embodiment, the system further includes a pair of limiting rollers, which are rotatably connected to the base and located between the two pairs of straightening rollers. The straightening rollers and the limiting rollers are perpendicular to each other.
[0010] As a preferred embodiment, each pair of brackets is fixedly connected with two first central shafts, which are parallel to each other. A second bearing is sleeved on the outer side of the first central shaft, and the straightening roller is sleeved on the outer side of the second bearing.
[0011] As a preferred embodiment, two second central shafts are fixedly connected to the base, the two second central shafts are parallel to each other, a third bearing is sleeved on the outer side of the second central shafts, and the limiting roller is sleeved on the outer side of the third bearing.
[0012] As a preferred embodiment, the wire feeding mechanism includes a base and a wire feeding reel, a wire feeding motor is fixedly connected to the base, and the output shaft of the wire feeding motor is connected to the center of the wire feeding reel.
[0013] As a preferred embodiment, a wire seat extends from the base, and a wire through groove is formed on the wire seat. The wire through groove has a narrow opening structure, with the narrow end of the wire through groove close to the straightening roller and the wide end of the wire through groove close to the pay-off reel.
[0014] As a preferred embodiment, both sides of the inner wall of the wire channel are rotatably connected to wire wheels, with the wire wheels located near the narrow end of the wire channel.
[0015] The beneficial effects of the feeding and straightening structure for a rolling mill disclosed in this utility model are:
[0016] The wire is fed into the conductor zone by the wire feeding mechanism, where it passes through the conductor zone. The wire first passes between the two straightening rollers of the same pair of straightening rollers and is clamped, using the constraint of the two pairs of straightening rollers to straighten the longitudinal curvature of the wire. Subsequently, the wire passes through the grooves of multiple straightening rollers in sequence. The multiple straightening rollers are arranged in an alternating left-right manner. The sliding seat is moved by rotating the screw, so that each straightening roller applies lateral contact pressure to the wire, thereby effectively eliminating the lateral curvature of the wire, significantly improving the overall straightness of the wire entering the rolling mill, and improving the quality of the wire in subsequent processing.
[0017] When the wire feeding mechanism switches to metal wires of different diameters, the width of the guide wire channel can be adjusted in real time by rotating the lead screw, ensuring that the feeding and straightening structure is compatible with multiple specifications of wires. At the same time, multi-lead screw linkage control technology is adopted, which realizes the synchronous translation of multiple straightening rollers by rotating multiple lead screws in the same direction, accurately adjusting the positioning accuracy of the metal wire entering the rolling mill inlet, and ensuring the continuity of the processing system. Attached Figure Description
[0018] Figure 1This is a schematic diagram of a feeding and straightening structure for a rolling mill according to the present invention.
[0019] Figure 2 This is a schematic diagram of the base structure of a feeding and straightening structure for a rolling mill according to this utility model.
[0020] Figure 3 This is a partial sectional view of the mounting groove of a feeding and straightening structure for a rolling mill according to this utility model.
[0021] Figure 4 This is a schematic diagram of the straightening roller installation structure of a feeding and straightening structure for a rolling mill according to this utility model.
[0022] Figure 5 This is a partial sectional view of a limiting roller in a feeding and straightening structure for a rolling mill, according to this utility model.
[0023] Figure 6 This is a schematic diagram of the wire feeding mechanism of a feeding and straightening structure for a rolling mill according to this utility model.
[0024] Figure 7 This is a schematic diagram of the layout of the straightening roller, limiting roller, and straightening wheel of a feeding and straightening structure for a rolling mill according to this utility model. Detailed Implementation
[0025] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:
[0026] Please refer to Figures 1-3 .
[0027] The present invention discloses a feeding and straightening structure for a rolling mill, comprising a base 3, two pairs of straightening rollers 342, a pair of limiting rollers 352, and a feeding mechanism 4.
[0028] The base 3 is fixedly connected to the rolling mill 1. The base 3 has multiple mounting slots 31. In this embodiment, five mounting slots 31 are preferred. A lead screw 311 is rotatably connected in the mounting slot 31. The five lead screws 311 are parallel to each other. A slide block 32 is slidably connected on the lead screw 311. The slide block 32 is in sliding contact with the inner wall of the mounting slot 31. When the lead screw 311 is rotated, the inner wall of the mounting slot 31 can constrain the slide block 32 to prevent the slide block 32 from rotating synchronously with the lead screw 311.
[0029] Furthermore, one end of the lead screw 311 extends out of the base 3, and a handwheel 312 is fixedly connected to one end of the lead screw 311. Five handwheels 312 are arranged alternately on the left and right sides of the base 3. The above design allows for a wider spacing between two adjacent handwheels 312 on the same side of the base 3, preventing workers from touching adjacent handwheels 312 when turning them.
[0030] Furthermore, a first bearing 321 is fitted onto the slide block 32, and the inner ring of the first bearing 321 is fixedly connected to the slide block 32; a straightening roller 322 is rotatably connected to the slide block 32, and the straightening roller 322 is fitted onto the outer ring of the first bearing 321, and the straightening roller 322 is rotatably connected to the slide block 32 through the first bearing 321; an annular groove is formed on the outer side of the straightening roller 322, and the five grooves are all parallel to each other, so that the five grooves and the conductor area are all located on the same horizontal plane;
[0031] Furthermore, a guide wire area is provided above the base 3, and five straightening rollers 322 are arranged alternately on the left and right sides of the guide wire area. The guide wire area is located in the wire groove. The straightening rollers 322 and the adjacent handwheels 312 are located on the same side of the guide wire area. The straightening rollers 322 at the end are close to the entrance of the rolling mill 1.
[0032] By rotating the handwheel 312, the lead screw 311 is driven to rotate synchronously, so that the lead screw 311 drives the slide block 32 to slide horizontally a certain distance, adjusting the straightening roller 322 to move closer to or further away from the conductor area; by rotating the five lead screws 311 in the same direction, the synchronous translation of multiple straightening rollers 322 is achieved, and the position of the conductor area on the base 3 is finely adjusted.
[0033] Please refer to Figure 2 and Figure 4 .
[0034] Two pairs of straightening rollers 342 are spaced a certain distance apart. The two straightening rollers 342 in the same pair are parallel to each other, and there is a gap between the two straightening rollers 342 in the same pair. The wire section passes through the gap between the two straightening rollers 342, so that the two straightening rollers 342 can clamp the metal wire 2. One pair of straightening rollers 342 is close to the straightening roller 322 located at the first end. The central axis of the straightening roller 342 is perpendicular to the central axis of the straightening roller 322, so that the straightening roller 342 is used to straighten the longitudinal curvature of the metal wire 2, and the straightening roller 322 is used to straighten the transverse curvature of the metal wire 2.
[0035] Furthermore, two pairs of supports 33 extend from the base 3, and two pairs of straightening rollers 342 are rotatably connected to the two pairs of supports 33 respectively. The straightening rollers 342 are placed between the two supports 33 of the same pair of supports 33.
[0036] Furthermore, each pair of supports 33 is fixedly connected with two first central shafts 34. The two ends of the first central shafts 34 are respectively fixedly connected to the two supports 33 within the same pair of supports 33, and the two first central shafts 34 are parallel to each other. Two second bearings 341 are sleeved on the outer side of the first central shafts 34. The two second bearings 341 are respectively close to the two ends of the first central shafts 34, and the inner ring of the second bearings 341 is fixedly connected to the outer side of the first central shafts 34. The straightening roller 342 is sleeved on the outer ring of the second bearings 341, and the straightening roller 342 is rotatably connected to the first central shafts 34 of the support 33 through the second bearings 341.
[0037] Please refer to Figure 2 , Figure 4 and Figure 5 .
[0038] The limiting roller 352 is rotatably connected to the base 3. The limiting roller 352 is located between two pairs of straightening rollers 342. The central axis of the straightening roller 342 is perpendicular to the central axis of the limiting roller 352. There is a gap between the two limiting rollers 352 of the same pair. The wire area passes through the gap between the two limiting rollers 352, so that the two limiting rollers 352 constrain the metal wire 2. This can prevent the metal wire 2 from shifting to the left or right on the straightening roller 342 due to excessive lateral curvature.
[0039] Furthermore, two second central shafts 35 are fixedly connected to the base 3. The two second central shafts 35 are parallel to each other. Two third bearings 351 are sleeved on the outer side of the second central shafts 35. The two third bearings 351 are respectively close to the two ends of the second central shafts 35. The inner ring of the third bearings 351 is fixedly connected to the second central shafts 35. The limiting roller 352 is sleeved on the outer ring of the third bearings 351. The limiting roller 352 is rotatably connected to the second central shafts 35 of the base 3 through the third bearings 351.
[0040] Please refer to Figure 2 , Figure 4 and Figure 5 .
[0041] Another pair of straightening rollers 342 are close to the wire feeding mechanism 4. The wire feeding mechanism 4 includes a base and a wire feeding wheel 411. A wire feeding motor 41 is fixedly connected to the base. The output shaft of the wire feeding motor 41 is detachably connected to the center of the wire feeding wheel 411. The metal wire 2 to be processed is wound into the wire feeding wheel 411.
[0042] Furthermore, a wire seat 42 extends from the base, and a wire through groove 421 is provided on the wire seat 42. The wire through groove 421 has a narrow opening structure. The narrow end of the wire through groove 421 is close to the straightening roller 342, and the wide end of the wire through groove 421 is close to the wire feeding wheel 411. One end of the wire area is close to the narrow end of the wire through groove 421, and the other end is close to the inlet of the rolling mill 1.
[0043] Furthermore, wire wheels are rotatably connected to both sides of the inner wall of the wire through groove 421, with the wire wheels close to the narrow end of the wire through groove 421;
[0044] The metal wire 2 led out by the pay-off reel 411 is first guided into the conductor area through the conductor channel 421 with a tapered opening structure. Because the metal wire 2 is arranged in a high-density spiral on the outside of the pay-off reel 411, when the pay-off motor 41 drives the pay-off reel 411 to rotate, the conductor channel 421 constrains the lateral displacement of the metal wire 2 within a fixed range through its tapering structure, thereby achieving directional guidance into the conductor area. During the guidance process, the metal wire 2 always maintains flexible contact with the conductor wheel in the conductor channel 421. The contact guidance replaces the traditional sliding friction, avoiding rigid friction between the metal wire 2 and the inner wall of the conductor channel 421, ensuring the integrity of the surface quality of the metal wire 2, and avoiding affecting the product quality after rolling.
[0045] Please refer to Figure 2 , Figure 4 and Figure 5 .
[0046] The wire feeding motor 41 drives the wire feeding wheel 411 to rotate, so that the metal wire 2 led out by the wire feeding wheel 411 is guided into the conductor area through the conductor channel 421. The metal wire 2 passes through the conductor area and enters the inlet of the rolling mill 1. The wire feeding motor 41 and the rolling mill 1 drive the metal wire 2 to travel through the conductor area.
[0047] As the metal wire 2 travels through the conductor area, it first passes through one pair of straightening rollers 342, one pair of limiting rollers 352 and another pair of straightening rollers 342 in sequence, and straightens the longitudinal curvature of the metal wire 2 by the constraint of the two pairs of straightening rollers 342.
[0048] Subsequently, the metal wire 2 passes through the grooves of multiple straightening rollers 322 in sequence. The multiple straightening rollers 322 are arranged in an alternating left and right manner. By rotating the handwheel 312, the lead screw 311 is rotated to drive the slide block 32 to move, so that each straightening roller 322 applies a top contact pressure to the metal wire 2 laterally, thereby effectively eliminating the lateral curvature of the metal wire 2 and significantly improving the overall straightness of the metal wire 2 entering the rolling mill 1.
[0049] Furthermore, the width of the wire guide area can be adjusted in real time by rotating the handwheel 312 to drive the lead screw 311 to rotate and drive the slide block 32 to move, based on the diameter of the metal wire 2 wound inside the feed wheel 411. This allows the feeding and straightening structure to be adapted to various specifications of metal wire 2. At the same time, the multi-lead screw 311 linkage control technology is adopted. By rotating five lead screws 311 in the same direction, the five straightening rollers 322 are moved synchronously, which precisely adjusts the positioning accuracy of the metal wire 2 entering the inlet of the rolling mill 1, ensuring the continuity of the processing system.
[0050] This invention provides a feeding and straightening structure for a rolling mill. A wire feeding mechanism guides the metal wire into the conductor zone, where it passes through. The metal wire first passes between two straightening rollers of the same pair and is clamped, using the constraint of the two pairs of straightening rollers to straighten the longitudinal curvature of the metal wire. Subsequently, the metal wire passes sequentially through the grooves of multiple straightening rollers arranged in an alternating left-right configuration. A rotating screw drives the sliding seat to move, causing each straightening roller to apply lateral pressure to the metal wire, effectively eliminating lateral curvature and significantly improving the overall straightness of the metal wire entering the rolling mill, thus enhancing the quality of the metal wire in subsequent processing.
[0051] When the wire feeding mechanism switches to metal wires of different diameters, the width of the guide wire channel can be adjusted in real time by rotating the lead screw, ensuring that the feeding and straightening structure is compatible with multiple specifications of wires. At the same time, multi-lead screw linkage control technology is adopted, which realizes the synchronous translation of multiple straightening rollers by rotating multiple lead screws in the same direction, accurately adjusting the positioning accuracy of the metal wire entering the rolling mill inlet, and ensuring the continuity of the processing system.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A feeding and straightening structure for a rolling mill, used to guide metal wire, characterized in that, The device includes a base with multiple mounting slots. A lead screw is rotatably connected to each mounting slot, and a slide block is slidably connected to the lead screw. The slide block is in sliding contact with the inner wall of the mounting slot. A straightening roller is rotatably connected to the slide block, and an annular groove is formed on the outer side of the straightening roller. All of the grooves are parallel to each other. Two pairs of straightening rollers, two pairs of supports extending from the base, the two pairs of straightening rollers being rotatably connected to the two pairs of supports respectively, the straightening rollers and the straightening wheels being perpendicular to each other, and the two pairs of straightening rollers being spaced a certain distance apart; The base is provided with a guide wire area, which passes between the two straightening rollers of the same pair of straightening rollers, and multiple straightening rollers are arranged alternately on the left and right sides of the guide wire area. The wire feeding mechanism has the straightening roller near the wire feeding mechanism and the straightening roller near the entrance of the rolling mill.
2. The feeding and straightening structure for a rolling mill as described in claim 1, characterized in that, One end of the lead screw extends out of the base, and a handwheel is fixedly connected to one end of the lead screw.
3. The feeding and straightening structure for a rolling mill as described in claim 2, characterized in that, The slide block is fitted with a first bearing, and the straightening roller is fitted on the outside of the first bearing.
4. The feeding and straightening structure for a rolling mill as described in claim 3, characterized in that, It also includes a pair of limiting rollers, which are rotatably connected to the base and located between the two pairs of straightening rollers. The straightening rollers and the limiting rollers are perpendicular to each other.
5. The feeding and straightening structure for a rolling mill as described in claim 4, characterized in that, Each pair of brackets is fixedly connected to two first central shafts, which are parallel to each other. A second bearing is sleeved on the outside of the first central shaft, and the straightening roller is sleeved on the outside of the second bearing.
6. The feeding and straightening structure for a rolling mill as described in claim 5, characterized in that, Two second central shafts are fixedly connected to the base. The two second central shafts are parallel to each other. A third bearing is sleeved on the outside of the second central shafts. The limiting roller is sleeved on the outside of the third bearing.
7. A feeding and straightening structure for a rolling mill as described in any one of claims 1 or 6, characterized in that, The wire feeding mechanism includes a base and a wire feeding reel. A wire feeding motor is fixedly connected to the base, and the output shaft of the wire feeding motor is connected to the center of the wire feeding reel.
8. The feeding and straightening structure for a rolling mill as described in claim 7, characterized in that, A wire seat extends from the base, and a wire through groove is formed on the wire seat. The wire through groove has a narrow opening structure, with the narrow end of the wire through groove close to the straightening roller and the wide end of the wire through groove close to the pay-off reel.
9. A feeding and straightening structure for a rolling mill as described in claim 8, characterized in that, Both sides of the inner wall of the wire channel are rotatably connected to wire wheels, which are located near the narrow end of the wire channel.