An online grinding device for the upper pinch roll of a portal type coiler

Abstract

The utility model discloses a kind of online polishing equipment of upper pinch roll of gateway type coiler, including the mounting bracket integrated in the coiler rack, be located on the lifting mechanism of mounting bracket, with the polishing assembly of lifting mechanism connection, the transverse swing mechanism of driving polishing assembly, and be located between the guide pulley guide mechanism of lifting mechanism and mounting bracket.Lifting mechanism drives polishing assembly to lift to approach or away from upper pinch roll, transverse swing mechanism drives polishing assembly to reciprocate along roll shaft direction, guide pulley guide mechanism guarantees lifting stability.Through the cooperation of each mechanism, roller surface can be polished automatically under non-stop state, eliminate the security risk of manual polishing, improve polishing quality and efficiency, solve the problem of strip steel quality caused by not in time due to roller surface defect processing.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment, specifically to an online grinding device for the clamping rollers of a gate-type winding machine. Background Technology

[0002] In steel rolling production, the frame coiler is a key piece of equipment for coiling strip steel. One of its core components, the upper pinch roll, primarily provides clamping force during the strip coiling process, ensuring smooth transport and tight winding of the strip. However, during long-term production, the surface of the upper pinch roll is prone to defects such as adhered steel, iron filings, and oxide scale due to strip friction and high temperatures. If these defects are not addressed promptly, they can cause scratches and indentations on the strip surface during subsequent transport, directly affecting the quality of the steel. Therefore, timely handling of defects on the upper pinch roll surface is a crucial step in ensuring the quality of strip steel production.

[0003] Currently, the industry primarily relies on manual grinding techniques to address defects on the upper pinch roll surface. Specifically, when defects such as sticky steel or iron filings are detected on the upper pinch roll surface, it is typically necessary to pause the coiler operation or utilize production breaks. Operators then manually grind the surface using tools such as angle grinders and sandpaper near the rotating pinch roll. During this process, the grinding force and range must be manually controlled to remove impurities adhering to the roll surface and attempt to restore its flatness, thereby reducing the impact on the subsequent strip surface. Firstly, operators must work close to the high-speed rotating pinch roll and amidst complex equipment, making them highly vulnerable to accidental contact with rotating parts or tool slippage leading to mechanical injury, posing a significant safety risk. Secondly, precise control of the force and angle during manual operation is difficult, resulting in insufficient flatness of the rolled surface, directly affecting the surface quality of the strip during subsequent coiling. Finally, manual grinding requires machine shutdown or occupies production breaks, severely restricting the efficiency of the rolling line. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide an online grinding device for the pinch rolls of a gate-type coiler. Through the integrated design adapted to the narrow space above the pinch rolls of the gate-type coiler, and combined with the synergistic effect of the lifting mechanism, the lateral swing mechanism and the guide wheel guiding mechanism, the device can automatically grind the roll surface without stopping the machine, thereby eliminating the safety hazards of manual grinding, improving grinding quality and efficiency, solving the strip quality problem caused by the untimely handling of roll surface defects in the prior art, and filling the technical gap of online grinding of the pinch rolls of the gate-type coiler.

[0005] Technical Solution: This utility model provides an online grinding device for the upper pinch roller of a gate-type coiler, including a mounting bracket and a lifting mechanism. The mounting bracket is integrated into the coiler frame, and the lifting mechanism is mounted on the mounting bracket. A grinding component is connected to the lifting mechanism. A lateral swing mechanism is driven by the grinding component. A guide wheel mechanism is located between the lifting mechanism and the mounting bracket. The lifting mechanism drives the grinding component to move up and down to approach or move away from the upper pinch roller. The lateral swing mechanism drives the grinding component to reciprocate along the axial direction of the upper pinch roller. The guide wheel mechanism ensures the stability of the grinding component during the lifting process. By integrating the mounting bracket with the coiler frame, the grinding device and the main unit are integrated, eliminating the need for additional independent space. The lifting mechanism can drive the grinding component to move precisely up and down, allowing the grinding component to approach (in operation) or move away from the upper pinch roller (in non-operation), flexibly adapting to different working conditions. The guide wheel mechanism provides guiding constraints during the lifting process of the grinding component, counteracting any shaking or offset during lifting.

[0006] Furthermore, this application discloses an online grinding device for the upper clamping roller of a gate-type coiler. The lifting mechanism includes a pair of lifting cylinders, which are mounted on a mounting bracket and positioned above both ends of the upper clamping roller. The grinding assembly includes a grinding seat, and the output end of each lifting cylinder is connected to the grinding seat pin via a lifting cylinder pin. By using a pair of lifting cylinders positioned above both ends of the upper clamping roller, the grinding seat can be driven to rise and fall synchronously. This symmetrical layout ensures balanced force distribution on both ends of the grinding assembly, avoiding tilting caused by unilateral force.

[0007] Furthermore, in the online grinding equipment for the upper pinch roll of the archway-type coiler of this application, the grinding assembly further includes a set of grinding block assemblies. The grinding block assemblies are arranged in an array along the axial direction of the upper pinch roll in the grinding seat. The grinding block assembly includes a grinding block support and grinding blocks. The grinding blocks are mounted on the grinding block support. When the upper pinch roll rotates and the grinding blocks abut against the upper pinch roll, the grinding blocks grind the circumferential surface of the upper pinch roll. A set of grinding block components is installed in an array along the axial direction of the upper pinch roller, which can simultaneously grind different axial positions on the roller surface. With the rotation of the upper pinch roller itself, it can achieve all-round coverage of the roller surface in both the circumference and axial direction, avoiding grinding dead corners. The grinding blocks are installed through grinding block brackets. When they come into contact with the rotating upper pinch roller, they can adaptively fit the roller surface by relying on the contact pressure. Even if the roller surface has slight non-roundness or wear and unevenness, it can still maintain stable grinding contact and ensure uniform grinding effect. The grinding blocks and brackets adopt a split design. When a single grinding block is worn, it can be replaced independently without replacing the entire grinding assembly, which is convenient for targeted maintenance. At the same time, grinding blocks of different grit sizes and materials can be flexibly replaced according to the roller surface material or grinding precision requirements.

[0008] Furthermore, in this application, an online grinding device for the upper pinch roll of a gate-type coiler includes a transverse oscillation mechanism comprising a transverse cylinder, a pair of transverse bearing seats, a transverse shaft, and a transverse support. The transverse cylinder is mounted on a mounting bracket, the pair of transverse bearing seats are mounted inside a grinding seat, the transverse shaft passes through the pair of transverse bearing seats, the transverse support is mounted on the transverse shaft, and the grinding block support is mounted on the transverse support. The output end of the transverse cylinder is connected to the transverse support via a transverse cylinder lug. When the grinding block contacts the upper pinch roll, the transverse cylinder drives the transverse support to reciprocate along the axial direction of the upper pinch roll, thereby grinding the radial surface of the upper pinch roll. A pair of transverse bearing seats are installed inside the grinding base, with a transverse shaft passing through them. This provides stable support and precise guidance for the movement of the transverse support, ensuring that the transverse support does not deviate or wobble when it moves axially along the upper pinch roller. With the grinding block in contact with the upper pinch roller, the reciprocating movement of the transverse support allows the grinding block to cover the entire radial range of the upper pinch roller, avoiding grinding blind spots.

[0009] Furthermore, in this application, an online grinding device for the clamping rollers of a gate-type coiler includes a guide wheel guiding mechanism comprising a top plate, a guide plate, a pair of guide wheel sets, and guide wheel seats. The top plate is mounted on the upper end of a mounting bracket, the guide plate is mounted vertically on the lower side of the top plate, the guide wheel seats are mounted on the upper outer side of the grinding seat, the guide wheels are mounted in the guide wheel seats, and the guide wheel sets are located on both sides of the guide plate. When a pair of lifting cylinders drive the grinding seat to move up and down, the pair of guide wheel sets on the guide wheel seats roll up and down along both sides of the guide plate with the grinding seat. This ensures that the grinding device maintains synchronous movement on both sides even when the output of the two lifting cylinders is asynchronous, avoiding swaying or tilting. When the lifting cylinders lift the grinding seat to the top plate, a buffer limit plate is also installed on the lower side of the top plate, which also serves as the initial waiting position for the grinding device. The guide plate is fixed vertically, and the guide wheel assembly is symmetrically arranged on both sides of the guide plate, forming a rigid constraint on the lifting trajectory of the grinding seat, ensuring that the grinding seat can only move vertically and avoiding lateral deviation or rotation. A pair of guide wheel assemblies are in contact with both sides of the guide plate, which can correct the tilting trend of the grinding seat caused by uneven force in real time, and ensure that the two ends of the grinding seat lift synchronously.

[0010] Furthermore, in this application, an online grinding device for the upper pinch roller of a gate-type coiler includes a sensor bracket at one end of the grinding seat along the axial direction of the upper pinch roller. A first sensor is mounted on the sensor bracket, and a grinding waiting position sensor and a grinding working position sensor are mounted on the mounting bracket. The grinding working position sensor is located below the grinding waiting position sensor. When grinding is not in progress, the first sensor corresponds to the grinding waiting position sensor. When grinding is required, the lifting cylinder drives the first sensor on the grinding seat to move down to the corresponding grinding working position sensor position, and the grinding operation begins. Through the corresponding cooperation of the first sensor with the grinding waiting position sensor and the grinding working position sensor, the position of the grinding seat can be accurately detected, clearly distinguishing between the waiting position when grinding is not needed and the working position when grinding is required.

[0011] Furthermore, in this application, an online grinding device for the clamping rollers of a gate-type winding machine is provided, wherein the lifting cylinder is provided with a safety pin and the outer side of the grinding seat is provided with a safety pin plate. When the grinding seat moves up to the point where the first sensor corresponds to the grinding waiting position sensor, the safety pin is inserted into the corresponding safety pin plate to lock the grinding assembly.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0013] 1. The online grinding equipment for the upper clamping roller of the archway-type coiler described in this utility model achieves automatic and precise lifting and lowering of the grinding components without stopping the machine through the coordinated design of the integrated mounting bracket, lifting mechanism and guide wheel guiding mechanism. This eliminates the safety risks of manual approach to the rotating clamping roller. At the same time, the guide wheel guiding mechanism counteracts the lifting and swaying, ensuring the stability and contact uniformity of the grinding process, and significantly improving the grinding quality.

[0014] 2. The online grinding equipment for the pinch rolls on the archway-type coiler described in this utility model drives the axial array of grinding block components to reciprocate through a transverse swing mechanism. Combined with the rotation of the pinch rolls themselves, it achieves full circumferential and axial coverage grinding of the roll surface, avoiding the problem of insufficient flatness caused by manual operation. Combined with sensor positioning and safety pin locking mechanisms, it further ensures the accuracy of automated operation and equipment safety, significantly reduces downtime for maintenance, and improves the production efficiency of the rolling line. Attached Figure Description

[0015] Figure 1 This utility model provides a schematic diagram of the online grinding equipment for the upper clamping rollers of a gate-type coiler. Figure 1 ;

[0016] Figure 2 This utility model provides a schematic diagram of the online grinding equipment for the upper clamping rollers of a gate-type coiler. Figure 2 .

[0017] Explanation of reference numerals in the instruction manual:

[0018] 1-Mounting bracket, 11-Grinding waiting position sensor, 12-Grinding working position sensor;

[0019] 2-Lifting mechanism, 21-Lifting cylinder, 211-Safety pin, 22-Lifting cylinder pin;

[0020] 3-Grinding assembly, 31-Grinding base, 311-Sensor bracket, 312-First sensor, 313-Safety pin plate, 32-Grinding block assembly, 321-Grinding block bracket, 322-Grinding block;

[0021] 4-Transverse swing mechanism, 41-Transverse cylinder, 42-Transverse bearing seat, 43-Transverse shaft, 44-Transverse support, 45-Transverse cylinder lug;

[0022] 5-Guide wheel guiding mechanism, 51-Top plate, 52-Guide plate, 53-Guide wheel assembly, 54-Guide wheel seat. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 and Figure 2 The diagram shows an online grinding device for the upper pinch roller of a gate-type coiler. Its mounting bracket 1 is bolted and fixed to the frame of the gate-type coiler. The lifting mechanism 2 includes a pair of symmetrically arranged lifting cylinders 21, located directly above both ends of the upper pinch roller, with the cylinder bodies of the lifting cylinders 21 fixed to the mounting bracket 1. The grinding seat 31 of the grinding assembly 3 is pinned to the output end of the lifting cylinder 21 via a lifting cylinder pin 22, allowing the lifting cylinder 21 to drive the grinding seat 31 to rise and fall as a whole.

[0026] Multiple sets of grinding block assemblies 32 are arrayed along the axial direction of the upper pinch roller inside the grinding base 31. Each set of grinding block assemblies 32 consists of a grinding block bracket 321 and a detachable grinding block 322, which is fixed to the grinding block bracket 321 by bolts. When the grinding block 322 contacts the rotating upper pinch roller, it can adaptively conform to the roller surface for circumferential grinding.

[0027] The transverse cylinder 41 of the transverse swing mechanism 4 is fixed on the mounting bracket 1, and its output end is connected to the transverse bracket 44 through the transverse cylinder lug 45. The transverse bracket 44 is mounted on the transverse shaft 43, and both ends of the transverse shaft 43 pass through a pair of transverse bearing seats 42 mounted in the grinding seat 31. The bottom of the grinding block bracket 321 is fixed on the transverse bracket 44. When the transverse cylinder 41 extends or retracts, it drives the transverse bracket 44 to move the grinding block assembly 32 back and forth along the axial direction of the upper pinch roller, so as to achieve radial full-coverage grinding of the roller surface.

[0028] The guide wheel guiding mechanism 5 includes a top plate 51 welded to the top of the mounting bracket 1, and a guide plate 52 vertically mounted on the lower side of the top plate 51. A guide wheel seat 54 is bolted to the upper outer side of the grinding seat 31, and a pair of symmetrical guide wheel sets 53 are installed in the guide wheel seat 54. When the lifting cylinder 21 drives the grinding seat 31 to rise and fall, the guide wheel sets 53 roll along both sides of the guide plate 52, ensuring that the grinding seat 31 moves vertically without deviation.

[0029] A sensor bracket 311 is provided on the right end of the grinding base 31, on which a first sensor 312 is mounted. A grinding waiting position sensor 11 (high position) and a grinding working position sensor 12 (low position) are provided at corresponding positions on the mounting bracket 1. Initially, the first sensor 312 is aligned with the grinding waiting position sensor 11. At this time, the safety pin 211 on the lifting cylinder 21 is inserted into the safety pin plate 313 on the outside of the grinding base 31, locking the grinding assembly 3. When grinding is required, the safety pin 211 is released, and the lifting cylinder 21 drives the grinding base 31 to descend until the first sensor 312 is aligned with the grinding working position sensor 12. Then, the transverse cylinder 41 is activated to perform automatic grinding.

[0030] Key Component Interaction Instructions

[0031] Lifting control: Lifting cylinder 21 drives grinding seat 31 to descend → guide wheel group 53 rolls along guide plate 52 to prevent deviation → first sensor 312 aligns with grinding working position sensor 12;

[0032] Grinding process: The upper clamping roller rotates (circumferential grinding) + the transverse cylinder 41 drives the grinding block assembly 32 to move axially (radial grinding).

[0033] Reset and lock: Grinding ends → Lifting cylinder 21 raises grinding seat 31 to align with first sensor 312 and grinding waiting position sensor 11 → Safety pin 211 is inserted into safety pin plate 313 to lock.

[0034] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An online grinding device for the upper clamping rollers of a gate-type coiler, characterized in that: include: Mounting bracket (1) and lifting mechanism (2), wherein the mounting bracket (1) is integrated into the winding machine frame and the lifting mechanism (2) is mounted on the mounting bracket (1); A grinding assembly (3) is connected to a lifting mechanism (2); A transverse swing mechanism (4) is driven to be connected to the grinding assembly (3); The guide wheel guide mechanism (5) is located between the lifting mechanism (2) and the mounting bracket (1); the lifting mechanism (2) is used to drive the grinding assembly (3) to move up and down to get closer to or away from the upper clamping roller; the transverse swing mechanism (4) is used to drive the grinding assembly (3) to move back and forth along the axial direction of the upper clamping roller; and the guide wheel guide mechanism (5) is used to ensure the stability of the grinding assembly during the lifting process.

2. The online grinding equipment for the upper pinch roller of the archway-type coiler according to claim 1, characterized in that, The lifting mechanism (2) includes a pair of lifting cylinders (21), which are mounted on the mounting bracket (1) and located above both ends of the upper clamping roller. The grinding assembly (3) includes a grinding seat (31), and the output end of the lifting cylinder (21) is connected to the grinding seat (31) via a lifting cylinder pin (22).

3. The online grinding equipment for the upper pinch roller of a gate-type coiler according to claim 2, characterized in that, The grinding assembly (3) further includes a set of grinding block assemblies (32). The grinding block assemblies (32) are arranged in an array along the axial direction of the upper pinch roller in the grinding seat (31). The grinding block assembly (32) includes a grinding block support (321) and a grinding block (322). The grinding block (322) is mounted on the grinding block support (321). When the upper pinch roller rotates and the grinding block (322) abuts against the upper pinch roller, the grinding block (322) grinds the circumferential surface of the upper pinch roller.

4. The online grinding equipment for the upper pinch roller of the archway-type coiler according to claim 3, characterized in that, The transverse swing mechanism (4) includes a transverse cylinder (41), a pair of transverse bearing seats (42), a transverse shaft (43), and a transverse support (44). The transverse cylinder (41) is mounted on the mounting bracket (1). The pair of transverse bearing seats (42) are mounted in the grinding seat (31). The transverse shaft (43) passes through the pair of transverse bearing seats (42). The transverse support (44) is mounted on the transverse shaft (43). The grinding block support (321) is mounted on the transverse support (44). The output end of the transverse cylinder (41) is connected to the transverse support (44) through the transverse cylinder lug (45). When the grinding block (322) abuts against the upper pinch roller, the transverse cylinder (41) drives the transverse support (44) to reciprocate along the axial direction of the upper pinch roller to grind the roller surface of the upper pinch roller radially.

5. The online grinding equipment for the upper pinch roller of the archway-type coiler according to claim 4, characterized in that, The guide wheel guiding mechanism (5) includes a top plate (51), a guide plate (52), a pair of guide wheel sets (53), and a guide wheel seat (54). The top plate (51) is installed on the upper end of the mounting bracket (1). The guide plate (52) is installed on the lower side of the top plate (51) in a vertical direction. The guide wheel seat (54) is installed on the upper side of the outer side of the grinding seat (31). The guide wheel sets (53) are installed in the guide wheel seat (54). The guide wheel sets (53) are located on both sides of the guide plate (52). When a pair of lifting cylinders (21) drive the grinding seat (31) to move up and down, the pair of guide wheel sets (53) on the guide wheel seat (54) roll up and down along both sides of the guide plate (52) with the grinding seat (31).

6. The online grinding equipment for the upper pinch roller of a gate-type coiler according to claim 5, characterized in that, The grinding seat (31) is provided with a sensor bracket (311) at one end along the axial direction of the upper clamping roller. The sensor bracket (311) is provided with a first sensor (312). The mounting bracket (1) is provided with a grinding waiting position sensor (11) and a grinding working position sensor (12). The grinding working position sensor (12) is located below the grinding waiting position sensor (11). When grinding is not performed, the first sensor (312) corresponds to the grinding waiting position sensor (11). When grinding is required, the lifting cylinder (21) drives the first sensor (312) on the grinding seat (31) to move down to the corresponding grinding working position sensor (12) position and then the grinding operation begins.

7. The online grinding equipment for the upper pinch roller of a gate-type coiler according to claim 6, characterized in that, The lifting cylinder (21) is provided with a safety pin (211), and the grinding seat (31) is provided with a safety pin plate (313) on the outside. When the grinding seat (31) moves up to the point where the first sensor (312) corresponds to the grinding waiting position sensor (11), the safety pin (211) is inserted into the corresponding safety pin plate (313) to lock the grinding assembly (3).

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