A side guide plate adjustment device for a fixed width press

Abstract

This utility model belongs to the technical field of fixed-width presses, and in particular, it is a side guide plate adjustment device for a fixed-width press. It includes a fixed-width press body, a support plate fixedly connected to one side of the press body, two side guide plates slidably mounted on the support plate, and a wear-resistant ceramic liner detachably fixedly connected to the inner side of each side guide plate. A convenient disassembly and replacement mechanism is provided between the wear-resistant ceramic liner and the side guide plate. This utility model has a reasonable structural design. The inclusion of a servo motor, a high-precision bidirectional lead screw, a laser displacement sensor, and a PLC controller allows for high-precision adjustment of the side guide plate spacing, resulting in smaller errors. The convenient disassembly and replacement mechanism enables rapid replacement of the wear-resistant ceramic liner, which is more convenient and efficient than traditional bolt connections, avoiding damage to the side guide plate body, reducing maintenance costs, and providing dynamic sealing to prevent impurities from entering the slide groove. The fault-free operation time of the precise adjustment mechanism is greatly extended.

Description

Technical Field

[0001] This utility model relates to the field of fixed-width press technology, and in particular to a side guide plate adjustment device for a fixed-width press. Background Technology

[0002] The width-fixing press is a key piece of equipment in a steel rolling production line. Its core function is to laterally limit and align the steel plate entering the mill through side guide plates, ensuring that the steel plate is rolled within a preset width range, thus guaranteeing the accuracy and efficiency of subsequent rolling processes. The adjustment accuracy of the side guide plates directly determines the width-fixing quality of the steel plate. If the positioning deviation of the side guide plates is too large, it can easily lead to steel plate deviation, uneven edge rolling, or even equipment jamming.

[0003] Traditional side guide plate adjustment devices have the following problems: the wear-resistant liner and the side guide plate are generally fixedly connected by bolts, which requires disassembling multiple parts during replacement, which is time-consuming and easily damages the side guide plate body, increasing maintenance costs by 40%. In addition, the side guide plate adjustment groove lacks an effective sealing structure, and impurities such as iron oxide scale and oil generated during rolling enter the groove, causing the adjustment mechanism to jam, accelerating component wear, and shortening the equipment's trouble-free operation time to less than 100 hours. Therefore, we propose a side guide plate adjustment device for a fixed width press to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned above by proposing a side guide plate adjustment device for a fixed-width press.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A side guide plate adjustment device for a fixed-width press includes a fixed-width press body. A support plate is fixedly connected to one side of the fixed-width press body. Two side guide plates are slidably arranged on the support plate. A wear-resistant ceramic liner is detachably fixedly connected to the inner side of the side guide plate. A convenient disassembly and replacement mechanism is provided between the wear-resistant ceramic liner and the side guide plate. A precision adjustment mechanism is provided between the support plate and the two side guide plates. The precision adjustment mechanism includes two sliding grooves formed on the top of the support plate. Grooves are formed on the front and rear inner walls of the sliding grooves. A shielding and sealing mechanism is provided in the two grooves.

[0007] Preferably, the precision adjustment mechanism further includes a servo motor fixedly connected to the front side of the support plate, and a high-precision bidirectional lead screw rotatably connected between the two slide grooves. The output shaft of the servo motor is fixedly connected to the front end of the high-precision bidirectional lead screw. Two drive plates are threaded on the outer side of the high-precision bidirectional lead screw. A connecting seat is fixedly connected to the top of the drive plate. The side guide plate is fixedly connected to the inner side of the connecting seat. A laser displacement sensor is fixedly connected to the outer side of the drive plate.

[0008] Preferably, the top of the support plate is fixedly connected to two vertical plates, and two limiting rods are slidably sleeved on each of the two vertical plates. The two limiting rods are fixedly connected to the outside of the connecting seat.

[0009] Preferably, a nitrile rubber pad is fixedly connected to the inner side of the connecting seat, and the nitrile rubber pad is fixedly connected to the outer side of the side guide plate.

[0010] Preferably, the shielding and sealing mechanism includes four compression springs and two baffles. The ends of the four compression springs that are far apart from each other are respectively fixedly connected to the inner walls of the corresponding grooves. The inner ends of the four compression springs are respectively fixedly connected to the outer sides of the corresponding baffles. Rubber sealing gaskets are fixedly connected to the sides of the two baffles that are close to each other. The two rubber sealing gaskets are respectively movably abutting against the front and rear sides of the drive plate.

[0011] Preferably, the two baffles are slidably fitted into the corresponding grooves.

[0012] Preferably, the convenient disassembly and replacement mechanism includes two connecting slots on the inner side of the side guide plate, with a common through groove between the two connecting slots. A connecting block is slidably fitted in the connecting slot, and both connecting blocks are fixedly connected to the back of the wear-resistant ceramic liner. A slot is provided on one side of each connecting block. A lifting screw is rotatably connected to the upper and lower inner walls of the through groove. A pressing block is threaded onto the outer side of the lifting screw. A pressure block is movably abutted against on both sides of the pressing block. A compression spring and a locking rod are fixedly connected to one side of the pressure block. The locking rod is movably engaged in the corresponding slot. One end of the compression spring is fixedly connected to the inner wall of one side of the through groove. A handwheel is fixedly connected to the top of the lifting screw, and a screw is threaded onto the handwheel. A threaded groove is provided on the top of the side guide plate, and the screw is threaded into the threaded groove.

[0013] Preferably, the lower pressing block and the two pressing blocks are slidably sleeved in the through groove, and the two compression springs are respectively sleeved on the outer side of the corresponding locking rod.

[0014] In this invention, a side guide plate adjustment device for a fixed-width press is described. A PLC controller receives steel plate specification signals and issues adjustment commands. A servo motor drives a high-precision bidirectional lead screw to rotate, causing two drive plates to move synchronously towards each other. The distance between the side guide plates is adjusted via a connecting seat. A limit rod cooperates with a vertical plate to limit the offset of the connecting seat. A laser displacement sensor can accurately measure the displacement of the drive plates, and the distance between the two side guide plates can be calculated. When the distance meets the requirements, the laser displacement sensor sends a signal to the PLC controller, which then shuts off the servo motor. This allows for precise adjustment of the distance between the two side guide plates to guide steel plates of different widths. When the drive plates move within the chute, they press against the baffles on both sides, compressing the compression springs. The spring force of the compression springs ensures that the rubber sealing gaskets remain tightly fitted to the surface of the drive plates, forming a sealing barrier to prevent impurities such as iron oxide scale, oil, and debris generated during rolling from entering the chute. Simultaneously, it prevents lubricating oil leakage from the chute, ensuring the flexible operation of the precise adjustment mechanism and significantly extending the equipment's trouble-free operating time.

[0015] In this utility model, the side guide plate adjustment device for a fixed-width press allows for easy replacement of the wear-resistant ceramic liner. When replacing the wear-resistant ceramic liner, unscrew the screws, turn the handwheel clockwise to rotate the lifting screw, causing the lower pressure block to rise along the lifting screw. The pressure spring then resets, pulling the pressure block and the locking rod out of the slot, allowing the wear-resistant ceramic liner to be pulled out along the connecting groove. When installing a new wear-resistant ceramic liner, insert the connecting block into the connecting groove, turn the handwheel counterclockwise, causing the lower pressure block to descend and press against the pressure block, pushing the locking rod into the slot. Finally, tighten the screws to lock the handwheel, completing the fixation. The entire disassembly and assembly process is faster and more convenient and efficient than traditional bolt connections.

[0016] This utility model features a reasonable structural design. The inclusion of a servo motor, a high-precision bidirectional lead screw, a laser displacement sensor, and a PLC controller allows for high-precision adjustment of the side guide plate spacing, resulting in smaller errors. The convenient disassembly and assembly mechanism enables rapid replacement of the wear-resistant ceramic liner, which is more convenient and efficient than traditional bolt connections. This avoids damage to the side guide plate body, reduces maintenance costs, and the dynamic sealing prevents impurities from entering the slide groove. The fault-free operation time of the precise adjustment mechanism is greatly extended. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a side guide plate adjustment device for a fixed-width press proposed in this utility model;

[0018] Figure 2 This is a partial sectional view of a side guide plate adjustment device for a fixed-width press proposed in this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0020] Figure 4 This is a schematic diagram of the shielding and sealing mechanism of the side guide plate adjustment device for a fixed-width press proposed in this utility model.

[0021] In the diagram: 1. Fixed-width press body; 2. PLC controller; 3. Support plate; 4. Precision adjustment mechanism; 41. Servo motor; 42. Drive board; 43. Vertical plate; 44. Connecting seat; 45. Nitrile rubber pad; 46. Limit rod; 47. Slide groove; 48. High-precision bidirectional lead screw; 49. Laser displacement sensor; 5. Side guide plate; 6. Wear-resistant ceramic liner; 7. Convenient disassembly and replacement mechanism; 71. Connecting block; 72. Slot; 73. Locking rod; 74. Connecting groove; 75. Compression spring; 76. Through groove; 77. Lifting lead screw; 78. Lowering block; 79. Pressure block; 710. Handwheel; 711. Screw; 8. Sealing mechanism; 81. Baffle; 82. Rubber sealing gasket; 83. Compression spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A side guide plate adjustment device for a fixed-width press includes a fixed-width press body 1 (suitable for fixed-width presses with specifications of 2000-4000mm, rigidity error ≤0.03mm / m); a stainless steel support plate 3 with surface quenching treatment is fixedly connected to one side of the fixed-width press body 1; two steel plate side guide plates 5 are slidably arranged on the support plate 3 for guiding and positioning the steel plates; an alumina wear-resistant ceramic liner 6 (hardness HV1500 or higher, wear resistance 10 times that of steel plate, and better high-temperature resistance due to the use of ceramic material) is detachably fixedly connected to the inner side of the side guide plate 5; the wear-resistant ceramic liner 6 is positioned between the side guide plate 5 and the side guide plate 5. A convenient disassembly and replacement mechanism 7 is provided to enable quick replacement of the wear-resistant ceramic liner 6; a precision adjustment mechanism 4 is provided between the support plate 3 and the two side guide plates 5 to achieve high-precision adjustment of the spacing between the side guide plates 5; the precision adjustment mechanism 4 includes two sliding grooves 47 opened on the top of the support plate 3, and rectangular grooves are opened on the front and rear inner walls of the sliding grooves 47. A shielding and sealing mechanism 8 is provided in the two grooves to prevent impurities from entering the sliding grooves 47 and avoid affecting the normal operation of the high-precision bidirectional lead screw 48; a PLC controller 2 (model Siemens S7-200, equipped with a touch screen, supporting parameter setting and status monitoring) is fixedly connected to one side of the support plate 3.

[0024] Specifically, the precision adjustment mechanism 4 provides millimeter-level adjustment and stable guidance. Through a servo motor and a high-precision lead screw, it achieves precise adjustment and stable guidance of the spacing between the side guide plates 5. A permanent magnet synchronous servo motor 41 (Panasonic A6 model, 1.5kW power, encoder resolution 131072ppr, speed adjustable from 0-1000r / min) is fixedly connected to the front of the support plate 3. A 40Cr high-precision bidirectional lead screw 48 with a positioning accuracy of ±0.01mm and surface hardening treatment is rotatably connected between the two slides 47 via a deep groove ball bearing. The output shaft of the servo motor 41 is fixedly connected to the front end of the high-precision bidirectional lead screw 48 via a coupling, driving the high-precision bidirectional lead screw 48 to rotate forward and backward. Two carbon steel drive plates 42 are threaded on the outer side of the high-precision bidirectional lead screw 48. The two drive plates 42 are respectively adapted to the left-hand and right-hand threads of the high-precision bidirectional lead screw 48 to achieve synchronous reverse movement. A laser displacement sensor 49 is fixedly connected to the outer side of the drive plate 42.

[0025] Specifically, a stainless steel connecting seat 44 is fixedly connected to the top of the drive plate 42, and the side guide plate 5 is fixedly connected to the inner side of the connecting seat 44 by bolts; a nitrile rubber pad 45 with a Shore hardness of 70A is bonded and fixed to the inner side of the connecting seat 44 to buffer the rolling impact force on the side guide plate 5 and reduce vibration; two carbon steel vertical plates 43 are welded and fixed to the top of the support plate 3, and two No. 45 steel limit rods 46 (chrome-plated) are slidably sleeved on the vertical plates 43. The limit rods 46 are fixedly connected to the outer side of the connecting seat 44 to ensure that the connecting seat 44 moves in a straight line without radial offset.

[0026] Adjustment Principle: The PLC controller 2 receives the steel plate specification signal and issues an adjustment command. The servo motor 41 drives the high-precision bidirectional lead screw 48 to rotate, causing the two drive plates 42 to move synchronously towards each other. Through the connecting seat 44, the side guide plates 5 are adjusted in distance. The limit rod 46 cooperates with the vertical plate 43 to limit the offset of the connecting seat 44, ensuring that the distance adjustment error of the side guide plates 5 is ≤ ±0.05mm, which meets the guiding requirements of steel plates with widths of 500-2000mm of different specifications. When the laser displacement sensor 49 can accurately measure the displacement of the drive plate 42, the distance between the two side guide plates 5 can be calculated. When the distance meets the requirements, the laser displacement sensor 49 sends a signal to the PLC controller 2, and the PLC controller 2 shuts down the servo motor 41. The distance between the two side guide plates 5 can be precisely adjusted to guide steel plates of different widths.

[0027] Specifically, the convenient disassembly and replacement mechanism 7—quick plate replacement—saves time and effort. Through the transmission and locking structure of the lifting screw 77, it enables the rapid disassembly and assembly of the wear-resistant ceramic liner 6. Two connecting grooves 74 are opened on the inner side of the side guide plate 5, and a common through groove 76 is opened between the two connecting grooves 74. Two connecting blocks 71 (compatible with the connecting grooves 74) are integrally formed on the back of the wear-resistant ceramic liner 6. The connecting blocks 71 are slidably fitted into the connecting grooves 74, achieving initial positioning of the wear-resistant ceramic liner 6. A locking groove 72 is opened on one side of the connecting block 71 for fixing the wear-resistant ceramic liner 6. A carbon steel lifting screw 77 is rotatably connected to the upper and lower inner walls of the through groove 76 via bearings. A carbon steel threaded sleeve is fitted on the outer side of the lifting screw 77. The lower pressure block 78 (with a double-sided inclined structure on both sides) has carbon steel pressure blocks 79 that movably abut against each other on both sides of the lower pressure block 78; a compression spring 75 (material 65Mn) and a carbon steel locking rod 73 are welded and fixed to one side of the pressure block 79, and the locking rod 73 is movably engaged in the corresponding locking groove 72 to fix the wear-resistant ceramic liner 6; one end of the compression spring 75 is welded and fixed to the inner wall of one side of the through groove 76 to provide a restoring force; a plastic handwheel 710 is welded and fixed to the top of the lifting screw 77, and an internal hexagon screw 711 is threaded onto the handwheel 710; a threaded groove is opened on the top of the side guide plate 5, and the screw 711 is threaded into the threaded groove to lock the handwheel 710 and improve the stability of the installation.

[0028] Disassembly and assembly principle: When replacing the wear-resistant ceramic liner 6, unscrew the screw 711, turn the handwheel 710 clockwise to drive the lifting screw 77 to rotate, the lower pressure block 78 rises along the lifting screw 77, the compression spring 75 resets and pulls the pressure block 79 and the locking rod 73 out of the slot 72, so that the wear-resistant ceramic liner 6 can be pulled out along the connecting groove 74; when installing a new wear-resistant ceramic liner 6, insert the connecting block 71 into the connecting groove 74, turn the handwheel 710 counterclockwise, the lower pressure block 78 descends and squeezes the pressure block 79, pushes the locking rod 73 into the slot 72, and then screw on the screw 711 to lock the handwheel 710 to complete the fixation; the whole disassembly and assembly process takes less time and is more efficient and convenient than traditional bolt connections.

[0029] Specifically, the shielding and sealing mechanism 8—which prevents debris and dust and extends service life—achieves dynamic sealing of the slide groove 47 by driving the baffle 81 through the compression spring 83, preventing iron oxide scale and oil from entering.

[0030] Sealing unit: A stainless steel baffle 81 is slidably fitted inside the groove, which is adapted to the width of the slide groove 47. The ends of four compression springs 83 (material 65Mn, diameter 5mm) that are far apart from each other are welded and fixed to the inner wall of the corresponding groove, and the inner ends are welded and fixed to the outer side of the corresponding baffle 81. Rubber sealing gaskets 82 (oil resistant and temperature resistant) are bonded and fixed to the side of the baffles 81 that are close to each other. The rubber sealing gaskets 82 are movably abutted against the front and rear sides of the drive plate 42 to achieve dynamic sealing.

[0031] Sealing principle: When the drive plate 42 moves within the slide 47, it presses against the baffles 81 on both sides, and the baffles 81 compress the compression spring 83. The elastic force of the compression spring 83 ensures that the rubber sealing gasket 82 is always tightly attached to the surface of the drive plate 42, forming a sealing barrier to prevent impurities such as iron oxide scale, oil stains, and debris generated during the rolling process from entering the interior of the slide 47. At the same time, it prevents the lubricating oil in the slide 47 from leaking out, ensuring the flexible operation of the precision adjustment mechanism and greatly extending the trouble-free operation time of the equipment.

[0032] The workflow is as follows: Based on the width specifications of the steel plate to be rolled, parameters are input through the PLC controller 2 to set the spacing between the side guide plates to 1200mm ± 0.05mm. The PLC issues an adjustment command, and the servo motor 41 drives the high-precision bidirectional lead screw 48 to rotate, causing the two drive plates 42 to move synchronously in opposite directions. Through the connecting seat 44, the side guide plates 5 are moved to the set spacing. With the displacement monitoring feedback from the laser displacement sensor 49, the spacing between the two side guide plates 5 can be precisely adjusted. The limit rod 46 ensures that the side guide plates 5 do not deviate. After the adjustment is completed, the servo motor 41 is locked. The width-fixing press is started, and the steel plate enters between the two side guide plates 5. The wear-resistant ceramic liner 6 guides and positions the steel plate to prevent it from deviating. The nitrile rubber pad 45 buffers the rolling impact and reduces equipment vibration. The shielding and sealing mechanism 8 prevents impurities from entering the slide 47 and ensures the stability of the adjustment mechanism.

[0033] When the wear-resistant ceramic liner 6 is worn to the limit thickness ≤10mm, after stopping the machine, unscrew the screw 711 on the handwheel 710, turn the handwheel 710 clockwise to unlock the lever 73, and pull out the old wear-resistant ceramic liner 6; after inserting the new wear-resistant ceramic liner 6, turn the handwheel 710 counterclockwise to lock it, tighten the screw 711 to complete the replacement, and resume production.

Claims

1. A width setting press side guide adjusting device characterized by, The press includes a fixed-width press body (1), a support plate (3) is fixedly connected to one side of the fixed-width press body (1), two side guide plates (5) are slidably arranged on the support plate (3), a wear-resistant ceramic liner (6) is detachably fixedly connected to the inner side of the side guide plate (5), a convenient disassembly and replacement mechanism (7) is provided between the wear-resistant ceramic liner (6) and the side guide plate (5), a precision adjustment mechanism (4) is provided between the support plate (3) and the two side guide plates (5), the precision adjustment mechanism (4) includes two sliding grooves (47) opened on the top of the support plate (3), grooves are opened on the front and rear inner walls of the sliding grooves (47), and a shielding and sealing mechanism (8) is provided in the two grooves.

2. A gauge length press side guide adjustment device according to claim 1, characterized in that The precision adjustment mechanism (4) also includes a servo motor (41) fixedly connected to the front side of the support plate (3) and a high-precision bidirectional lead screw (48) rotatably connected between the two slides (47). The output shaft of the servo motor (41) is fixedly connected to the front end of the high-precision bidirectional lead screw (48). Two drive plates (42) are threaded on the outer side of the high-precision bidirectional lead screw (48). A connecting seat (44) is fixedly connected to the top of the drive plate (42). The side guide plate (5) is fixedly connected to the inner side of the connecting seat (44). A laser displacement sensor (49) is fixedly connected to the outer side of the drive plate (42).

3. The side guide plate adjustment device for a fixed-width press according to claim 2, characterized in that, The top of the support plate (3) is fixedly connected to two vertical plates (43), and two limiting rods (46) are slidably sleeved on the two vertical plates (43). The two limiting rods (46) are fixedly connected to the outside of the connecting seat (44).

4. The side guide plate adjustment device for a fixed-width press according to claim 2, characterized in that, The inner side of the connecting seat (44) is fixedly connected to a nitrile rubber pad (45), and the nitrile rubber pad (45) is fixedly connected to the outer side of the side guide plate (5).

5. The side guide plate adjustment device for a fixed-width press according to claim 2, characterized in that, The shielding and sealing mechanism (8) includes four compression springs (83) and two baffles (81). The ends of the four compression springs (83) that are far apart from each other are respectively fixedly connected to the inner wall of the corresponding groove. The inner ends of the four compression springs (83) are respectively fixedly connected to the outer side of the corresponding baffles (81). Rubber sealing gaskets (82) are fixedly connected to the side of the two baffles (81) that are close to each other. The two rubber sealing gaskets (82) are respectively movably abutting against the front and rear sides of the drive plate (42).

6. The side guide plate adjustment device for a fixed-width press according to claim 5, characterized in that, The two baffles (81) are slidably fitted into the corresponding grooves.

7. The side guide plate adjustment device for a fixed-width press according to claim 1, characterized in that, The convenient disassembly and replacement mechanism (7) includes two connecting grooves (74) on the inner side of the side guide plate (5), and a common through groove (76) between the two connecting grooves (74). A connecting block (71) is slidably fitted in the connecting groove (74). Both connecting blocks (71) are fixedly connected to the back of the wear-resistant ceramic liner (6). A slot (72) is provided on one side of the connecting block (71). A lifting screw (77) is rotatably connected to the upper and lower inner walls of the through groove (76). A pressing block (78) is threaded on the outer side of the lifting screw (77). On both sides of the lower pressure block (78), there are movable pressure blocks (79). A compression spring (75) and a locking rod (73) are fixedly connected to one side of the pressure block (79). The locking rod (73) is movably locked in the corresponding locking groove (72). One end of the compression spring (75) is fixedly connected to the inner wall of one side of the through groove (76). A handwheel (710) is fixedly connected to the top of the lifting screw (77). A screw (711) is threaded on the handwheel (710). A threaded groove is opened on the top of the side guide plate (5). The screw (711) is threaded in the threaded groove.

8. The side guide plate adjustment device for a fixed-width press according to claim 7, characterized in that, The lower pressure block (78) and the two pressure blocks (79) are slidably sleeved in the through groove (76), and the two compression springs (75) are respectively sleeved on the outside of the corresponding locking rod (73).

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