Centering device for cold-rolled strip steel production
The automatic adjustment of the limit rollers by the worm gear transmission system driven by the servo motor solves the problems of friction loss and poor applicability in the production of cold-rolled strip steel, and realizes a high-efficiency and durable centering device, which improves production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAZU COUNTRY SENMAO STRAP STEEL CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cold-rolled strip steel production equipment suffers from insufficient adjustment efficiency and automation, making it difficult to adapt to different specifications of strip steel, resulting in frictional loss and edge wear, which affects product quality and production efficiency.
The worm gear transmission system driven by a servo motor achieves automatic adjustment of the limit distance by coordinating the adjustment screw and the limit roller, reducing friction loss and improving the limit accuracy and durability.
It enables automatic adjustment of limit positions according to strip specifications, reduces friction loss, improves the durability of the device and the smoothness of strip conveying, and ensures product quality.
Smart Images
Figure CN224237898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strip steel production technology, and in particular to a centering device for cold-rolled strip steel production. Background Technology
[0002] In the production of cold-rolled strip steel, the alignment accuracy during strip conveying directly affects product quality and production efficiency. Traditional alignment devices often suffer from low adjustment efficiency and insufficient automation. Especially when dealing with strip steel of different specifications, manual adjustment of the limit structure is time-consuming and labor-intensive, and it is difficult to ensure uniform limit force on both sides, which can easily lead to strip deviation, edge wear, or even strip breakage. At the same time, some devices use mechanical linkage structures, and the wear caused by long-term friction reduces the alignment accuracy, failing to meet the production requirements of high-precision cold-rolled strip steel. In addition, the integration of the drive system and control system in existing technologies is low, making it difficult to automatically adjust the limit spacing according to the strip steel specifications. Therefore, there is an urgent need for an alignment device with a high degree of automation, precise adjustment, and high durability to solve the alignment control problem in the strip steel conveying process.
[0003] Existing technology authorization announcement number CN222805799U discloses a centering device for cold-rolled strip steel production. This utility model provides a centering device for cold-rolled strip steel production that effectively protects the sides of the strip steel and improves the limiting effect. A centering device for cold-rolled strip steel production includes a mounting base, a sliding base, a first lead screw, a sliding plate, a second lead screw, and a protective mechanism. This utility model relies on the cooperation between the sliding frame and the spring to limit and protect the sides of the strip steel, allowing the strip steel to move stably in a planar manner. Simultaneously, during the centering process, the cooperation between the rotating plate and the torsion spring suppresses and limits any possible warping, improving the protection effect of the strip steel and preventing damage.
[0004] Existing technologies use side-limiting protection for strip steel to ensure stable planar movement. However, in practical use, this device struggles to adjust the limiting width over a wide range to accommodate strips of varying widths. Furthermore, during strip transport, friction occurs between the strip's sides and the protective mechanism, causing frictional wear that not only affects normal strip transport but also damages the strip's side edges. To address these issues, we propose a centering device for cold-rolled strip steel production. This device solves the problems of frictional wear and poor applicability, improving both the device's durability and ensuring smooth strip transport and optimal strip surface quality. Utility Model Content
[0005] The purpose of this invention is to provide a centering device for cold-rolled strip steel production, which solves the problems of friction loss and poor applicability of existing devices mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a centering device for cold-rolled strip steel production, comprising a feeding platform, with a left side plate and a right side plate fixedly disposed at both ends of the feeding platform, a lower adjustment component disposed inside the feeding platform, an upper adjustment component disposed between the left side plate and the right side plate, a limit roller rotatably mounted between the upper adjustment component and the lower adjustment component, and a drive component meshing with the upper adjustment component and the lower adjustment component near the right side plate.
[0007] The feeding platform has an adjustment groove on its top surface. The lower adjustment assembly includes a lower adjustment screw and two lower limit rods. The two ends of the lower adjustment screw are rotatably mounted on the inner wall of the adjustment groove via bearings. The two ends of the lower limit rods are fixedly mounted on the inner wall of the adjustment groove. The two lower limit rods are horizontally symmetrical to the lower adjustment screw. The lower adjustment screw is threadedly connected to a first movable block and a second movable block. The lower limit rods pass through the first movable block and the second movable block and slide in contact with the first movable block and the second movable block.
[0008] The upper adjustment assembly includes an upper adjustment screw and two upper limit rods. The two ends of the upper adjustment screw are rotatably mounted on the left and right sides of the plate near each other via bearings. The two ends of the upper limit rods are fixedly mounted on the left and right sides of the plate near each other. The two upper limit rods are horizontally symmetrical to the upper adjustment screw. The upper adjustment screw is threadedly connected to a third movable block and a fourth movable block. The upper limit rods pass through the third and fourth movable blocks and slide in contact with them.
[0009] The upper and lower adjusting screws are both bidirectional threaded rods. The first and second movable blocks are symmetrically positioned around the midpoint of the lower adjusting screw, and the third and fourth movable blocks are symmetrically positioned around the midpoint of the upper adjusting screw. The first movable block is located directly below the third movable block, and the second movable block is located directly below the fourth movable block. The upper adjusting screw, upper limit rod, lower adjusting screw, and lower limit rod are all parallel to each other.
[0010] The drive assembly includes an upper turbine, a lower turbine, and a worm gear. The upper and lower turbines are meshed with the worm gear. The upper adjusting screw passes through the right side plate and is fixedly connected to the upper turbine at one end. The lower adjusting screw passes through the feeding table and is fixedly connected to the lower turbine at one side. The worm gear is meshed with the outer sides of the upper and lower turbines. A top support plate is fixedly installed on the top of the right side plate away from the feeding table. A lower support plate is fixedly installed on the feeding table away from the adjusting groove. The top of the worm gear is rotatably connected to the top support plate. The bottom of the worm gear passes vertically through the lower support plate and is rotatably connected to the lower support plate. A servo motor is fixedly installed at the bottom of the lower support plate. The output end of the servo motor is fixedly connected to the bottom of the worm gear via a coupling. A PLC control panel is fixedly installed on the outer wall of the right side plate. The PLC control panel is electrically connected to the servo motor.
[0011] This utility model discloses a centering device for cold-rolled strip steel production. A servo motor drives a worm gear to rotate, which in turn drives the upper and lower worm gears to rotate synchronously. This achieves synchronous rotation of the upper and lower adjusting screws, causing the first and second movable blocks (threaded to the outer side of the lower adjusting screw) and the third and fourth movable blocks (threaded to the outer side of the upper adjusting screw) to move two limiting rollers towards both sides of the strip steel, achieving a centering effect. The limiting rollers are rotatably and vertically mounted between the movable blocks. When friction occurs between the strip steel edge and the limiting roller, the limiting roller rolls accordingly, preventing interference with strip steel transport and reducing frictional wear, thus improving the device's durability. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a partial structural schematic diagram of the present invention;
[0015] Figure 3 This is a schematic diagram of the drive component structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the limiting roller structure of this utility model.
[0017] In the diagram: 1. Feeding table; 11. Adjustment groove; 2. Left side plate; 3. Right side plate; 4. Lower adjustment assembly; 41. Lower adjusting screw; 42. Lower limit rod; 43. First movable block; 44. Second movable block; 5. Upper adjustment assembly; 51. Upper adjusting screw; 52. Upper limit rod; 53. Third movable block; 54. Fourth movable block; 6. Limit roller; 7. Drive assembly; 71. Upper turbine; 72. Lower turbine; 73. Worm gear; 74. Servo motor; 8. Top support plate; 9. Lower support plate; 10. PLC control panel. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] Please see Figures 1-4 This utility model provides a technical solution: a centering device for cold-rolled strip steel production, including a feeding platform 1, with a left side plate 2 and a right side plate 3 fixedly installed at both ends of the feeding platform 1, a lower adjustment component 4 installed inside the feeding platform 1, an upper adjustment component 5 installed between the left side plate 2 and the right side plate 3, a limit roller 6 rotatably installed between the upper adjustment component 5 and the lower adjustment component 4, and a drive component 7 meshing with the upper adjustment component 5 and the lower adjustment component 4 near the right side plate 3, the drive component 7 including an upper turbine 71, a lower turbine 72 and a worm gear 73, the upper turbine 71, the lower turbine 72 and the worm gear 73 meshing with each other. The top surface of the feeding platform 1 has an adjustment groove 11. The lower adjustment assembly 4 includes a lower adjustment screw 41 and two lower limit rods 42. The two ends of the lower adjustment screw 41 are rotatably mounted on the inner wall of the adjustment groove 11 via bearings. The two ends of the lower limit rods 42 are fixedly mounted on the inner wall of the adjustment groove 11. The two lower limit rods 42 are horizontally symmetrical to the lower adjustment screw 41. A first movable block 43 and a second movable block 44 are threadedly connected to the outer side of the lower adjustment screw 41. The lower limit rods 42 pass through the first movable block 43 and the second movable block 44 and slide in contact with them. By rotating the lower adjustment screw 41, the first movable block 43 and the second movable block 44 are driven to open and close. During the movement of the first movable block 43 and the second movable block 44, the two lower limit rods 42, which are horizontally symmetrical to the lower adjustment screw 41, ensure the stable horizontal movement of the first movable block 43 and the second movable block 44.
[0020] The upper adjustment assembly 5 includes an upper adjusting screw 51 and two upper limit rods 52. The upper adjusting screw 51 is rotatably mounted on the side of the left side plate 2 and the right side plate 3 respectively, via bearings at both ends. The upper limit rods 52 are fixedly mounted on the side of the left side plate 2 and the right side plate 3 respectively, with the two upper limit rods 52 horizontally symmetrical to the upper adjusting screw 51. A third movable block 53 and a fourth movable block 54 are threaded onto the outer side of the upper adjusting screw 51. The upper limit rods 52 pass through the third movable block 53 and the fourth movable block 54 and slide in contact with them. Rotation of the upper adjusting screw 51 drives the third movable block 53 and the fourth movable block 54 to achieve the desired spacing adjustment. During the movement of the third movable block 53 and the fourth movable block 54, the two upper limit rods 52, horizontally symmetrical to the upper adjusting screw 51, ensure that the third movable block 53 and the fourth movable block 54 move stably along the upper limit rods 52.
[0021] Both the upper adjusting screw 51 and the lower adjusting screw 41 are bidirectional threaded rods. The first movable block 43 and the second movable block 44 are symmetrically positioned around the midpoint of the lower adjusting screw 41. The third movable block 53 and the fourth movable block 54 are symmetrically positioned around the midpoint of the upper adjusting screw 51. The first movable block 43 is located directly below the third movable block 53, and the second movable block 44 is located directly below the fourth movable block 54. The upper adjusting screw 51, the upper limit rod 52, the lower adjusting screw 41, and the lower limit rod 42 are all parallel to each other. By using the parallel upper adjusting screw 51, the upper limit rod 52, the lower adjusting screw 41, and the lower limit rod 42, the two limiting rollers 6 can be parallel to each other in the vertical direction, improving the limiting accuracy.
[0022] The upper adjusting screw 51 passes through the right side plate 3 near one end and is fixedly connected to the upper turbine 71. The lower adjusting screw 41 passes through the feeding table 1 near one side of the right side plate 3 and is fixedly connected to the lower turbine 72. The upper turbine 71 and the lower turbine 72 are meshed with a worm gear 73 on their outer sides. A top support plate 8 is fixedly installed on the top of the right side plate 3 away from the feeding table 1. A lower support plate 9 is fixedly installed on the side of the feeding table 1 away from the adjusting groove 11. The top of the worm gear 73 is rotatably connected to the top support plate 8. The bottom of the worm gear 73 passes vertically through the lower support plate 9 and is rotatably connected to the lower support plate 9. A servo motor 74 is fixedly installed at the bottom of the lower support plate 9. The output end of the servo motor 74 is fixedly connected to the bottom of the worm gear 73 through a coupling. A PLC control panel 10 is fixedly installed on the outer wall of the right side plate 3. The PLC control panel 10 is electrically connected to the servo motor 74. The servo motor 74 is started and stopped by the PLC control panel, which drives the worm gear 73 to rotate, and further drives the upper worm gear 71 and the lower worm gear 72 to rotate synchronously, thereby achieving the effect of synchronous rotation of the upper adjusting screw 51 and the lower adjusting screw 41.
[0023] Working principle: In use, firstly, one end of the strip is passed between the upper adjusting component 5 and the lower adjusting component 4, so that the strip is laid flat on the top surface of the feeding table 1. Then, the servo motor 74 is started through the PLC control panel 10. The servo motor 74 drives the worm gear 73 to rotate, which in turn drives the upper worm gear 71 and the lower worm gear 72 to rotate synchronously, thereby achieving the effect of synchronous rotation of the upper adjusting screw 51 and the lower adjusting screw 41. This causes the first movable block 43 and the second movable block 44 connected to the outer thread of the lower adjusting screw 41, and the third movable block 53 and the fourth movable block 54 connected to the outer thread of the upper adjusting screw 51 to move the two limit rollers 6 to both sides of the strip. The operator can set the preset value of the distance adjustment of the two limit rollers 6 in the PLC control system according to the width value of the strip of different specifications, or control the limit distance of the two limit rollers 6 by visual inspection, thereby controlling the opening and closing of the servo motor 74 to achieve the centering effect of the strip. The limiting roller 6 is rotatably and vertically installed between the movable blocks. When the edge of the strip steel rubs against the limiting roller 6, the limiting roller 6 can roll accordingly, thus avoiding affecting the conveying of the strip steel. At the same time, it also reduces the friction loss rate of the limiting roller 6 and improves the durability of the device.
[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A centering device for cold-rolled strip steel production, comprising a feeding table (1), characterized in that: The feeding platform (1) has a left side plate (2) and a right side plate (3) fixedly installed at both ends. The feeding platform (1) has a lower adjustment component (4) installed inside. The upper adjustment component (5) is installed between the left side plate (2) and the right side plate (3). A limit roller (6) is rotatably installed between the upper adjustment component (5) and the lower adjustment component (4); The upper adjustment component (5) and the lower adjustment component (4) are meshed with a drive component (7) near the right side plate (3). The drive component (7) includes an upper turbine (71), a lower turbine (72) and a worm (73). The upper turbine (71), the lower turbine (72) and the worm (73) are meshed with each other.
2. The centering device for cold-rolled strip steel production according to claim 1, characterized in that: The top surface of the feeding platform (1) is provided with an adjustment groove (11). The lower adjustment assembly (4) includes a lower adjustment screw (41) and two lower limit rods (42). The two ends of the lower adjustment screw (41) are rotatably installed on the inner wall of the adjustment groove (11) through bearings. The two ends of the lower limit rods (42) are fixedly installed on the inner wall of the adjustment groove (11). The two lower limit rods (42) are horizontally symmetrical to the lower adjustment screw (41). The outer side of the lower adjustment screw (41) is threaded with a first movable block (43) and a second movable block (44). The lower limit rods (42) pass through the first movable block (43) and the second movable block (44) and are in close contact with the first movable block (43) and the second movable block (44).
3. The centering device for cold-rolled strip steel production according to claim 1, characterized in that: The upper adjustment assembly (5) includes an upper adjustment screw (51) and two upper limit rods (52). The two ends of the upper adjustment screw (51) are rotatably mounted on the side of the left side plate (2) and the right side plate (3) respectively via bearings. The two ends of the upper limit rods (52) are fixedly mounted on the side of the left side plate (2) and the right side plate (3) respectively. The two upper limit rods (52) are horizontally symmetrical to the upper adjustment screw (51). The upper adjustment screw (51) is threaded with a third movable block (53) and a fourth movable block (54) on its outer side. The upper limit rods (52) pass through the third movable block (53) and the fourth movable block (54) and slide in contact with the third movable block (53) and the fourth movable block (54).
4. The centering device for cold-rolled strip steel production according to claim 2, characterized in that: The lower adjusting screw (41) and the upper adjusting screw (51) are both bidirectional threaded rods. The first movable block (43) and the second movable block (44) are symmetrically arranged around the midpoint of the lower adjusting screw (41). The third movable block (53) and the fourth movable block (54) are symmetrically arranged around the midpoint of the upper adjusting screw (51). The first movable block (43) is located directly below the third movable block (53), and the second movable block (44) is located directly below the fourth movable block (54). The upper adjusting screw (51), the upper limit rod (52), the lower adjusting screw (41), and the lower limit rod (42) are all parallel to each other.
5. The centering device for cold-rolled strip steel production according to claim 4, characterized in that: The upper adjusting screw (51) passes through the right side plate (3) and is fixedly connected to the upper turbine (71) at one end. The lower adjusting screw (41) passes through the feeding table (1) and is fixedly connected to the lower turbine (72) at one side. The upper turbine (71) and the lower turbine (72) are meshed with a worm gear (73) on their outer sides.
6. The centering device for cold-rolled strip steel production according to claim 1, characterized in that: A top support plate (8) is fixedly installed on the top of the right side plate (3) away from the feeding table (1). A lower support plate (9) is fixedly installed on the side of the feeding table (1) away from the adjusting groove (11). The top of the worm gear (73) is rotatably connected to the top support plate (8). The bottom end of the worm gear (73) passes vertically through the lower support plate (9) and is rotatably connected to the lower support plate (9). A servo motor (74) is fixedly installed at the bottom of the lower support plate (9). The output end of the servo motor (74) is fixedly connected to the bottom end of the worm gear (73) through a coupling. A PLC control panel (10) is fixedly installed on the outer wall of the right side plate (3). The PLC control panel (10) is electrically connected to the servo motor (74).