Positioning and sliding mechanism for upper roll system of plate straightening machine

Abstract

The utility model relates to an upper roll system positioning sliding mechanism of a plate straightening machine, and belongs to the technical field of plate straightening equipment in the metallurgical industry. According to the technical scheme, upper guide plates (1) are fixed to the upper portions of the inner sides of memorial archways (01) on the transmission side and the operation side of an outlet and an inlet of the straightening machine, upper sliding plates (2) are fixed to an upper movable rack (02) of an upper roller system of the straightening machine, the upper sliding plates (2) correspond to the upper guide plates (1) one to one, and the upper sliding plates (2) are in sliding connection with the upper guide plates (1); the lower guide plates (4) are fixed below the inner sides of memorial archways (01) on the transmission side and the operation side of an outlet and an inlet of the straightening machine, the lower slide plates (3) are fixed on an upper roller system of the straightening machine, and the lower slide plates (3) correspond to the lower guide plates (4) in a one-to-one mode and are connected with the lower guide plates (4) in a sliding mode. The utility model has the benefits that the stability of the upper roll system of the straightening machine can be improved, and the center lines of the upper roll system are prevented from being staggered and crossed in the working process.

Description

Technical Field

[0001] The utility model relates to a roller system positioning sliding mechanism for a plate straightening machine, belonging to the technical field of plate straightening equipment in the metallurgical industry. Background Art

[0002] The straightening machine is an important equipment in the hot-rolled medium and thick plate production line. It is an important process to optimize the performance of the steel plate and ensure that the unevenness of the steel plate meets the standard. The straightening machine roller system is the core component of the straightening machine, and its stability directly determines the overall stability of the straightening machine.

[0003] See attached Figure 1 , 2 3. A bending roller adjustment device (bending roller beam 04) and an upper movable frame 02 are provided above the roller system 03 of the straightening machine, and the roller gap adjustment is usually precisely controlled and executed by a servo valve and a pressing hydraulic cylinder 07. In order to ensure the precise positioning of the upper movable frame 02 when the roller system is replaced, to avoid damage to the pressing hydraulic cylinder 07 and other parts due to misalignment, and to achieve precise adjustment and tilting of the roller gap, a positioning slide 06 is usually provided at the movable frame 02 fixedly connected above the roller system, and a gap is provided between the two slides, that is, the upper roller system 03 of the straightening machine realizes the tilting setting and constraint of the straightening roller gap through the positioning slides 06 provided at the four corners of the movable frame 02 fixedly connected above it and the rectangular guide plate 05 on the arch side.

[0004] Since the positioning slide 06 is located at the straightening machine arch 01 which cooperates with the upper movable frame 02, when the slide 06 wears and the gap increases, it is necessary to dismantle the upper movable frame 02 for replacement, which is a cumbersome process and takes a long time to replace. At the same time, the roller system is in a cantilever state, the upper roller system is subjected to large force and poor stability, and the roller system is deformed due to deflection when straightening high-strength steel plates, which causes the upper roller system to shake and misalign during the straightening process, resulting in a deviation between the theoretical center line and the actual center line of the straightening roller system, thereby generating a large axial force, which ultimately leads to frequent equipment accidents such as damage and jamming of the roller bearings, adhesion of steel to the roller surface, breakage of the main transmission universal joint shaft, failure of axial movement of the safety coupling, cracking or even breakage of the straightening roller surface, etc., which seriously affects the normal production rhythm.

[0005] The Chinese patent with announcement number CN 216801174 U discloses a roller system stabilization device for a plate straightening machine, which realizes secondary constraint on the roller system of the straightening machine through hydraulic adjustment devices installed at the four corners of the archway and positioning slides installed at the four corners of the roller system, with the help of a control and detection system. However, this solution is costly, the synchronous control and detection procedures of the hydraulic cylinder are complex, and it is greatly affected by the environment. If an error occurs, there will be an over-constraint with the original slide of the straightening machine, which has a certain impact on the stability of the roller system. Utility Model Content

[0006] The utility model aims to provide a plate straightening machine upper roller system positioning sliding mechanism, which can improve the stability of the straightening machine upper roller system, avoid the upper roller system center line misalignment and crossing during operation, and solve the problems existing in the background technology.

[0007] The technical solution of the utility model is:

[0008] A positioning and sliding mechanism for an upper roller system of a plate straightening machine comprises an upper guide plate, an upper slide plate, a lower slide plate and a lower guide plate. The upper guide plate is fixed above the inner side of an archway at an inlet and outlet transmission side and an operating side of the straightening machine, the upper slide plate is fixed on an upper movable frame of an upper roller system of the straightening machine, the upper slide plate corresponds to the upper guide plate one by one, and the upper slide plate is slidably connected to the upper guide plate; the lower guide plate is fixed below the inner side of an archway at an inlet and outlet transmission side and an operating side of the straightening machine, the lower slide plate is fixed on the upper roller system of the straightening machine, the lower slide plate corresponds to the lower guide plate one by one, and the lower slide plate is slidably connected to the lower guide plate.

[0009] The upper guide plate comprises a bottom plate and a wear-resistant plate fixed on the bottom plate. The bottom plate is fixed on an upper movable frame of an upper roller system of a straightening machine, and an upper slide plate is slidably connected with the wear-resistant plate.

[0010] The contact surface between the upper slide plate and the wear-resistant plate is an arc surface.

[0011] The bottom plate and the wear-resistant plate in the upper guide plate are both rectangular plates, the outer dimensions of the wear-resistant plate are smaller than those of the bottom plate, and a transition slope is provided between the lower edge of the wear-resistant plate and the bottom plate.

[0012] The lower slide plate and the lower guide plate are both rectangular plates that fit each other, and chamfers are arranged on the four sides of the lower guide plate.

[0013] The contact surface between the lower slide plate and the lower guide plate is an arc surface.

[0014] The beneficial effects of the utility model are: it can effectively control the upper roller system of the straightening machine, avoid the dislocation and crossing of the center line of the upper roller system during the working process, maintain the stability of the upper roller system, and ensure the stable operation of the straightening machine. It has the advantages of simple structure, low cost, easy maintenance, wide applicability, etc., and solves the problem of shaking and dislocation of the roller system of the straightening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the main view of the background technology;

[0016] Figure 2 A schematic diagram of a straightening machine archway is provided for the background technology;

[0017] Figure 3 It is a schematic diagram of the roller system of the background technology straightening machine;

[0018] Figure 4 This is a structural schematic diagram of the upper guide plate of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the upper slide plate of the utility model;

[0020] Figure 6 This is a schematic diagram of the cooperation between the upper guide plate and the upper slide plate of the utility model;

[0021] Figure 7 A schematic diagram of the structure of the lower slide plate of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the lower guide plate of the utility model;

[0023] Fig. 9 This is a schematic diagram of the cooperation between the lower slide plate and the lower guide plate of the utility model;

[0024] Fig.10 This is a schematic diagram of the application of the utility model in a non-working state;

[0025] Fig.11 This is a schematic diagram of the working state application of the utility model;

[0026] In the figure: 1-upper guide plate, 11-bottom plate, 12-wear-resistant plate, 13-guide angle, 14-internal thread through hole;

[0027] 2-upper slide plate, 21-arc surface, 22-countersunk bolt through hole;

[0028] 3-lower slide plate, 31-arc surface, 32-countersunk bolt through hole;

[0029] 4-lower guide plate, 41-chamfer, 42-countersunk bolt through hole;

[0030] 01-straightening machine arch, 02-upper movable frame, 03-upper roller system of straightening machine, 04-bending roller beam, 05-original guide plate, 06-original slide plate, 07-pressing hydraulic cylinder;

[0031] 011-rectangular notch, 012-internal threaded hole;

[0032] 031-roller base frame, 0311-rectangular notch, 0312-internal thread hole; DETAILED DESCRIPTION

[0033] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0034] Refer to the attached Figure 4-11A positioning sliding mechanism for an upper roller system of a plate straightening machine comprises an upper guide plate 1, an upper slide plate 2, a lower slide plate 3 and a lower guide plate 4. The upper guide plate 1 is fixed on the upper inner side of a memorial arch 01 on the transmission side and the operating side of an inlet and outlet of the straightening machine, the upper slide plate 2 is fixed on an upper movable frame 02 of an upper roller system of the straightening machine, the upper slide plate 2 corresponds to the upper guide plate 1 one by one, and the upper slide plate 2 is slidably connected to the upper guide plate 1; the lower guide plate 4 is fixed on the lower inner side of a memorial arch 01 on the transmission side and the operating side of an inlet and outlet of the straightening machine, the lower slide plate 3 is fixed on the upper roller system of the straightening machine, the lower slide plate 3 corresponds to the lower guide plate 4 one by one, and the lower slide plate 3 is slidably connected to the lower guide plate 4.

[0035] In this embodiment, refer to the attached Figure 4 The structure of the upper guide plate 1 is basically the same as that of the original guide plate 05, and the whole includes a base plate 11 and a wear-resistant plate 12. The width of the wear-resistant plate 12 is smaller than the width of the base plate 11, and the length of the wear-resistant plate 12 is smaller than the length of the base plate 11. A guide angle 13 is provided, and evenly distributed internal threaded through holes 14 are provided on both sides of the base plate 11. The upper guide plate 1 is fixed to the original installation position above the inner side of the archway 01 on the transmission side and the operating side of the straightening machine entrance and exit by bolts.

[0036] See attached Figure 5 , 6 The upper slide plate 2 is a rectangular plate structure, one side of which is set as a circular arc surface 21, and its width corresponds to the width of the wear-resistant plate 12 of the upper guide plate 1. At the same time, there are evenly distributed countersunk bolt through holes 22, and the upper slide plate 2 is fixed to the original installation position below the transmission side and the operation side of the inlet and outlet of the upper movable frame 02 by bolt connection, corresponding to the installation position of the upper guide plate 1.

[0037] See attached Figure 7 The lower slide plate 3 is configured as a rectangular plate structure as a whole, one side of which is configured as a circular arc surface 31, and is provided with evenly distributed countersunk bolt through holes 32. Rectangular notches 0311 are opened on the outer sides of the four corners of the roller system base 031 of the upper roller system 03 of the straightening machine, and internal threaded holes 0312 are added. The height of the rectangular notch 0311 is consistent with the height of the lower slide plate 3, and the size and position of the internal threaded hole 0312 are consistent with the countersunk bolt through hole 32. The lower slide plate 3 is fixed to the rectangular notch 0311 of the upper roller system 03 by bolt connection.

[0038] See attached Figure 8 , 9 The lower guide plate 4 is configured as a rectangular plate structure as a whole, a chamfer 41 is provided on the outer side of one side plane, and countersunk bolt through holes 42 are evenly distributed. A rectangular notch 011 and an internal threaded hole 012 are additionally provided at the corresponding position of the archway. The lower guide plate 4 is fixed to the lower inner side of the archway by bolt connection, and its position corresponds to the position of the lower slide plate 3.

[0039] See also Fig.10When the straightening machine is not in working state, such as when the roller system is replaced or the maintenance is idle, the upper roller system is in the upper position. At this time, the lower slide plate 3 is separated from the lower guide plate 4 and is not in contact. The upper slide plate 2 on the upper movable frame is in contact with the upper guide plate 1 on the archway to position the upper movable frame and the roller system in a stable state to avoid equipment damage. At the same time, since the straightening machine is not in the tooling state, the upper slide plate 2 and the upper guide plate 1 are effectively reduced from being subjected to impact, wear and other abnormal conditions, extending the service life of the slide plate, reducing or even avoiding the replacement of the upper slide plate, and saving the time for replacing the slide plate.

[0040] Refer to the attached Fig.11 When the straightening machine is in working state, the upper roller system is in the lower position, at this time, the upper slide plate 2 is separated from the upper guide plate 1 and does not contact, the upper roller system and the upper bending roller beam and the upper movable frame above it are contacted and positioned with the lower guide plate 4 on the arch through the lower slide plate 3 on the upper roller system, and the roll gap tilting and positioning constraint functions are realized by the lower slide plate 3 and the lower guide plate 4. It can effectively avoid the shaking of the upper roller system caused by working impact, and improve the working stability of the upper roller system of the straightening machine.

[0041] The upper roller system positioning sliding mechanism of the plate straightening machine realizes the switching of the slide positioning mode between the working state and the non-working state through the combined use of the upper guide plate and the upper slide plate as well as the lower slide plate and the lower guide plate. It is more adaptable to the actual working conditions on site and ensures the stable operation of the roller system of the straightening machine and its related equipment under the premise of avoiding over-constraint.

Claims

1. A roller positioning sliding mechanism for a plate straightening machine, characterized in that: The invention comprises an upper guide plate (1), an upper slide plate (2), a lower slide plate (3) and a lower guide plate (4), wherein the upper guide plate (1) is fixed to the upper inner side of a memorial arch (01) on the transmission side and the operating side of the straightening machine, the upper slide plate (2) is fixed to the upper movable frame (02) of the upper roller system of the straightening machine, the upper slide plate (2) corresponds to the upper guide plate (1) one by one, and the upper slide plate (2) and the upper guide plate (1) are slidably connected; the lower guide plate (4) is fixed to the lower inner side of a memorial arch (01) on the transmission side and the operating side of the straightening machine, the lower slide plate (3) is fixed to the upper roller system of the straightening machine, the lower slide plate (3) corresponds to the lower guide plate (4) one by one, and the lower slide plate (3) and the lower guide plate (4) are slidably connected.

2. The upper roller positioning sliding mechanism of a plate straightening machine according to claim 1, characterized in that: The upper guide plate (1) comprises a bottom plate (11) and a wear-resistant plate (12) fixed on the bottom plate (11); the bottom plate (11) is fixed on an upper movable frame (02) of an upper roller system of a straightening machine; and an upper slide plate (2) is slidably connected to the wear-resistant plate (12).

3. The upper roller positioning sliding mechanism of a plate straightening machine according to claim 2, characterized in that: The contact surface between the upper slide plate (2) and the wear-resistant plate (12) is an arc surface.

4. The upper roller positioning sliding mechanism of a plate straightening machine according to claim 3 is characterized in that: The bottom plate (11) and the wear-resistant plate (12) in the upper guide plate (1) are both rectangular plates. The outer dimensions of the wear-resistant plate (12) are smaller than those of the bottom plate (11). A transition slope is provided between the lower edge of the wear-resistant plate (12) and the bottom plate (11).

5. The upper roller positioning sliding mechanism of a plate straightening machine according to claim 1, characterized in that: The lower slide plate (3) and the lower guide plate (4) are both rectangular plates that fit together, and the four sides of the lower guide plate (4) are all provided with chamfers (41).

6. The upper roller positioning sliding mechanism of a plate straightening machine according to claim 5, characterized in that: The contact surface between the lower slide plate (3) and the lower guide plate (4) is an arc surface.

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