Steel strip dismounting trolley for twin-belt continuous caster

Abstract

This invention provides a steel strip loading and unloading trolley for a double-strip continuous casting machine. A steel strip support mechanism is installed at both ends of the mounting frame along the x-axis. The steel strip support mechanism includes a first linear motion drive mechanism and a steel strip support frame. The steel strip support frame is connected to the mounting frame via the first linear motion drive mechanism, which drives the steel strip support frame to move along the x-axis. A connecting seat is connected to the mounting frame via the first linear motion drive mechanism. An arc-shaped support plate protrudes outwards from the mounting frame, its length direction is parallel to the y-axis, and its inner surface is connected to the connecting seat. A through hole is provided on the arc-shaped support plate. The roller seat of the roller mechanism is connected to the connecting seat via a second linear motion drive mechanism, which drives the rollers of the roller mechanism to extend or retract from the through hole. This facilitates the removal of the existing annular steel strip from the double-strip continuous casting machine and the installation of a newly replaced annular steel strip onto the machine.

Description

Technical Field

[0001] This invention belongs to the field of equipment maintenance technology for double-belt continuous casting machines, and specifically relates to a steel strip disassembly and assembly trolley for double-belt continuous casting machines. Background Technology

[0002] In the wide plate casting operation of molten metal, molten metal is output from the holding furnace, enters the front box of the continuous casting machine through the trough or pipe, and then enters the casting cavity through the gating nozzle for casting. After cooling and crystallization in the casting cavity, it forms a plate for output and then proceeds to the next process.

[0003] The casting of wide metal plates typically employs a double-strand continuous casting machine, which is current technology. A double-strand continuous casting machine includes paired steel strip mechanisms, each comprising a frame. Tension rolls and driven rolls, arranged horizontally at intervals, are mounted on the frame. The steel strip is wound around the tension rolls and driven rolls, forming a ring structure. Stops are installed at both ends of the steel strip in the width direction. Due to frequent contact with high-temperature molten metal, the steel strip will experience slight deformation during use, and the coating will gradually peel off over time. Therefore, the steel strip needs to be replaced after a period of use to ensure its performance meets production requirements.

[0004] When removing the steel strip to be replaced, the tension roller needs to be retracted and loosened towards the driven roller using a hydraulic cylinder. This shortens the gap between the tension roller and the driven roller, loosening the steel strip. Then, a forklift is used to move the steel strip pallet for replacement. The pallet is inserted into the gap between the tension roller and the driven roller, lifting the steel strip to be replaced, and then pulled out in the opposite direction. During this process, the steel strip needs to be manually pushed to allow it to move and prevent its sides from pressing against other parts. Furthermore, pulling out the steel strip using the pallet relies mainly on the friction between the bottom of the pallet and the steel strip; even a slight jamming will cause slippage, making disassembly difficult.

[0005] When installing a new replacement annular steel belt, first place the new belt on the pallet, aligning one end with the outer edge of the tension roller and the other end with the outer edge of the driven roller. Adjusting the position of the new belt is time-consuming. After alignment, two baffles on the pallet hold the edges of the new belt and push it towards the frame. This method is prone to causing the baffles to jam against the edges of the new belt when encountering slight resistance, leading to edge deformation. Furthermore, manual pushing of the belt's upper and lower sides is required to prevent jamming. Therefore, this method suffers from problems such as long replacement time, high manpower consumption, and the potential for damage to the new belt. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a steel strip disassembly and assembly trolley for a double-belt continuous casting machine, which facilitates the disassembly of the original annular steel strip on the double-belt continuous casting machine and the installation of the newly replaced annular steel strip on the double-belt continuous casting machine.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a steel strip loading and unloading trolley for a double-strip continuous casting machine, including a mounting frame and a steel strip support mechanism mounted on the mounting frame; with a plane rectangular coordinate system as a reference system, the steel strip support mechanism is mounted at both ends of the mounting frame along the x-axis direction;

[0008] The steel strip support mechanism includes a first linear motion drive mechanism and a steel strip support frame. The steel strip support frame is connected to the mounting frame through the first linear motion drive mechanism. The first linear motion drive mechanism is used to drive the steel strip support frame to move along the x-axis direction.

[0009] The steel strip support frame includes a connecting seat, an arc-shaped support plate, and a roller mechanism;

[0010] The connecting seat and the mounting frame are connected through the first linear motion drive mechanism; the arc-shaped support plate protrudes outward from the mounting frame, the length direction of the arc-shaped support plate is parallel to the y-axis, and the inner side of the arc-shaped support plate is connected to the connecting seat.

[0011] The arc-shaped support plate has through holes;

[0012] The roller seat of the roller mechanism is connected to the connecting seat through a second linear motion drive mechanism, which drives the roller of the roller mechanism to extend or retract from the through hole.

[0013] Furthermore, it also includes a first linear motion guide mechanism that guides along the x-axis direction, and the steel strip support frame is connected to the mounting frame through the first linear motion guide mechanism.

[0014] Furthermore, a roller drive motor is mounted on the roller base, and the roller is driven by the roller drive motor.

[0015] Furthermore, it also includes a second linear motion guide mechanism, which guides the arc-shaped support plate radially; the roller seat and the connecting seat are connected through the second linear motion guide mechanism.

[0016] Furthermore, it also includes a partition mechanism installed on the mounting frame, with the partition mechanism installed both above and below the mounting frame;

[0017] The separating mechanism includes a first clamping and conveying mechanism, a second clamping and conveying mechanism, a lifting mechanism, and a separating plate;

[0018] The first clamping and conveying mechanism is connected to the mounting frame via a sliding structure, and the first clamping and conveying mechanism moves along the x-axis.

[0019] The second clamping and conveying mechanism is located on the side opposite to the first clamping and conveying mechanism and the mounting frame. The first clamping and conveying mechanism and the second clamping and conveying mechanism are connected by a lifting mechanism. The partition plate is located between the first clamping and conveying mechanism and the second clamping and conveying mechanism, and the first clamping and conveying mechanism and the second clamping and conveying mechanism convey the partition plate along the y-axis direction.

[0020] Furthermore, it also includes a separator mechanism drive motor, the first clamping and conveying mechanism is connected to the mounting frame via a lead screw, and the separator mechanism drive motor is connected to the lead screw drive motor;

[0021] The length direction of the lead screw is parallel to the x-axis direction.

[0022] Furthermore, the first linear motion drive mechanism and the second linear motion drive mechanism are cylinders.

[0023] Furthermore, the mounting bracket is provided with forklift holes, the axial direction of which is parallel to the y-axis; two forklift holes are spaced apart along the x-axis, and the two forklift holes are located on the same side of the mounting bracket.

[0024] Furthermore, the partition is made of plastic.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the present invention provides a steel strip disassembly and assembly trolley for a double-strip continuous casting machine, which facilitates the disassembly of the original annular steel strip on the double-strip continuous casting machine and the installation of the newly replaced annular steel strip on the double-strip continuous casting machine. It also has the following advantages:

[0026] 1. When installing the steel strip, it is not necessary to rely on manual pushing of the steel strip in conjunction with a forklift to install the steel strip onto the tension roller and the driven roller, thus reducing the amount of labor.

[0027] 2. When installing the steel strip, the steel strip installation and positioning method has been changed from manual alignment to automatic alignment after the tension roller and the passive roller are clamped by the arc support plate. This saves the time of manual alignment, improves the work efficiency of steel strip replacement, and avoids the situation where the steel strip is not fully aligned and the edge of the steel strip hits other parts during installation, causing damage to the steel strip.

[0028] 3. When installing the steel strip, the steel strip is fed in through a roller mechanism to avoid deformation, damage, or direct scrapping of the steel strip due to external force on the edges of the steel strip;

[0029] 4. When disassembling the steel strip on the double-strip continuous casting machine, prevent the steel strip from collapsing and deforming in the middle due to its own weight during transportation and loading / unloading onto the trolley. A separating mechanism can effectively separate the magnetic support rollers and the steel strip, eliminating the need for manual pulling of the separating plate to separate the steel strip support rollers. This reduces the labor intensity for workers, minimizes contact between personnel and the operating parts, and reduces the probability of safety accidents. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention after the partition plate is removed;

[0032] Figure 3 This is a top view of the structure of the present invention after the partition plate has been removed;

[0033] Figure 4 This is an enlarged view of part A of the present invention;

[0034] Reference numerals: 1-Mounting bracket; 101-Forklift hole; 2-First linear motion drive mechanism; 3-Steel strip support frame; 301-Connecting seat; 302-Arc-shaped support plate; 3021-Through hole; 303-Roller mechanism; 3031-Roller; 304-Second linear motion drive mechanism; 305-Second linear motion guide mechanism; 4-First linear motion guide mechanism; 5-Separating mechanism; 501-First clamping and conveying mechanism; 502-Second clamping and conveying mechanism; 503-Lifting mechanism; 504-Separating plate; 6-Separating mechanism drive motor; 7-Sliding structure; 8-Lead screw. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] A steel strip loading and unloading trolley for a double-strip continuous casting machine includes a mounting frame 1 and a steel strip support mechanism mounted on the mounting frame 1. Using a Cartesian coordinate system as a reference, the steel strip support mechanism is mounted at both ends of the mounting frame 1 along the x-axis. The steel strip support mechanism includes a first linear motion drive mechanism 2 and a steel strip support frame 3. The steel strip support frame 3 is connected to the mounting frame 1 via the first linear motion drive mechanism 2, which drives the steel strip support frame 3 to move along the x-axis. The steel strip support frame 3 includes a connecting seat 301, an arc-shaped support plate 302, and a roller mechanism 303. The connecting seat 301 is connected to the mounting frame 1 through the first linear motion drive mechanism 2; the arc-shaped support plate 302 protrudes outward from the mounting frame 1, the length direction of the arc-shaped support plate 302 is parallel to the y-axis, and the inner side of the arc-shaped support plate 302 is connected to the connecting seat 301; a through hole 3021 is provided on the arc-shaped support plate 302; the roller seat of the roller mechanism 303 is connected to the connecting seat 301 through the second linear motion drive mechanism 304, and the second linear motion drive mechanism 304 drives the roller 3031 of the roller mechanism 303 to extend or retract from the through hole 3021.

[0037] Mounting bracket 1 provides mounting support for the steel strip support mechanism. The first linear motion drive mechanism 2 provides power for the steel strip support bracket 3 to move along the x-axis. Before the steel strip is tensioned by the two arc-shaped support plates 302, the second linear motion drive mechanism 304 retracts, positioning the rollers 3031 of the roller mechanism 303 inside the arc-shaped support plates 302, preventing contact between the rollers 3031 and the steel strip. After the steel strip is tensioned by the two arc-shaped support plates 302, the second linear motion drive mechanism 304 drives the rollers 3031 of the roller mechanism 303 to extend from the through-hole 3021, bringing them into contact with the steel strip. This then transports the steel strip to be replaced to the steel strip loading / unloading trolley, or transports the newly replaced steel strip to the tensioning rollers and driven rollers of the double-strip continuous casting machine. Specifically, the rollers 3031 of the roller mechanism 303 extend or retract from the through-hole 3021 radially along the arc-shaped support plate 302. By setting up the roller mechanism 303, sliding friction is converted into rolling friction, which is beneficial to the movement of the steel belt.

[0038] When disassembling the steel strip on the double-strip continuous casting machine, first, the tensioning roller used to tension the steel strip is retracted and released by the hydraulic cylinder towards the driven roller, thus loosening the steel strip to be replaced. The steel strip disassembly trolley is then transported to the double-strip continuous casting machine frame using a forklift. The first linear motion drive mechanism 2 drives the steel strip support frame 3 to move away from the mounting frame 1, increasing the distance between the two steel strip support frames 3. The arc-shaped support plate 302 of one steel strip support frame 3 is aligned with the tensioning roller, and the arc-shaped support plate 302 of the other steel strip support frame 3 is aligned with the driven roller. Then, the first linear motion drive mechanism 2 drives the steel strip support frame 3 towards the mounting frame 1, with one arc-shaped support plate 302 clamped onto the tensioning roller and the other arc-shaped support plate 302 clamped onto the driven roller. Finally, the second linear motion drive mechanism 304 causes the roller 3031 of the roller mechanism 303 to extend out of the through hole 3021, moving the steel strip to be replaced onto the steel strip disassembly and assembly trolley.

[0039] When installing the steel strip onto the twin-strip continuous casting machine, a forklift transports the steel strip loading / unloading trolley to the steel strip placement rack. The first linear motion drive mechanism 2 drives the steel strip support frame 3 towards the mounting frame 1, reducing the distance between the two steel strip support frames 3. The forklift then moves the steel strip loading / unloading trolley into the newly replaced steel strip, and the first linear motion drive mechanism 2 drives the steel strip support frame 3 away from the mounting frame 1, increasing the distance between the two steel strip support frames 3. The newly replaced steel strip is tensioned using two arc-shaped support plates 302 and transported to the twin-strip continuous casting machine by forklift. The tensioning roller on the twin-strip continuous casting machine, driven by a hydraulic cylinder, retracts and releases towards the driven roller, clamping one arc-shaped support plate 302 onto the tensioning roller and the other arc-shaped support plate 302 onto the driven roller. The second linear motion drive mechanism 304 causes the roller 3031 of the roller mechanism 303 to extend out of the through hole 3021, moving the newly replaced steel strip from the steel strip loading and unloading trolley to the tension roll and passive roll of the double-belt continuous casting machine.

[0040] Preferably, multiple sets of roller mechanisms 303 are provided, and the multiple sets of roller mechanisms 303 are arranged at intervals along the bending direction of the arc-shaped support plate 302. As a further preferred embodiment, a single roller 3031 is provided, and the multiple rollers 3031 are arranged at intervals along the axial direction of the arc-shaped support plate 302.

[0041] To improve the reliability of the steel strip support frame 3's movement along the x-axis, preferably, a first linear motion guide mechanism 4 is also included, guiding movement along the x-axis. The steel strip support frame 3 and the mounting frame 1 are connected via the first linear motion guide mechanism 4. By providing the first linear motion guide mechanism 4, the reliability and stability of the steel strip support frame 3's movement along the x-axis are improved. Specifically, the connecting seat 301 is connected to the mounting frame 1 via the first linear motion guide mechanism 4. The first linear motion guide mechanism 4 can be a slider-groove structure or a guide rod sleeve structure.

[0042] Preferably, a roller drive motor is mounted on the roller base, and the roller 3031 is driven by the roller drive motor. The roller base provides mounting support for the roller drive motor, which drives the roller to rotate forward or in reverse.

[0043] To improve the reliability of the roller 3031 extending or retracting from the through hole 3021 in the roller mechanism 303, preferably, a second linear motion guide mechanism 305 is also included. The second linear motion guide mechanism 305 guides radially along the arc-shaped support plate 302; the roller seat and the connecting seat 301 are connected via the second linear motion guide mechanism 305. Specifically, the second linear motion guide mechanism 305 guides radially along the arc-shaped support plate 302. The second linear motion guide mechanism 305 can be a guide rod sleeve structure or a slider groove structure.

[0044] On a twin-strip continuous casting machine, the support rollers that support the steel strip can be either non-magnetic or magnetic. When the support rollers are magnetic, the steel strip is attracted to them. To remove the steel strip to be replaced, a partition is typically used to separate it from the magnetic support rollers to prevent attraction. Similarly, to install a new steel strip, a partition is typically used to separate it from the magnetic support rollers to prevent attraction. Preferably, the system further includes a partition mechanism 5 mounted on the mounting frame 1, with the partition mechanism 5 mounted both above and below the mounting frame 1. The partition mechanism 5 includes a first clamping and conveying mechanism 501, a second clamping and conveying mechanism 502, a lifting mechanism 503, and a partition plate 504. The first clamping and conveying mechanism 501 is connected to the mounting frame 1 via a sliding structure 7 and moves along the x-axis. The second clamping and conveying mechanism 502 is located on the side opposite to the mounting frame 1 of the first clamping and conveying mechanism 501, and the first clamping and conveying mechanism 501 and the second clamping and conveying mechanism 502 are connected via the lifting mechanism 503. The partition plate 504 is located between the first clamping and conveying mechanism 501 and the second clamping and conveying mechanism 502, and the first clamping and conveying mechanism 501 and the second clamping and conveying mechanism 502 convey the partition plate 504 along the y-axis.

[0045] The first clamping and conveying mechanism 501 and the second clamping and conveying mechanism 502, under the action of the lifting mechanism 503, achieve stable clamping of the separator plate 504. The lifting mechanism 503 is a hydraulic cylinder or a pneumatic cylinder. The horizontally arranged separator plate 504, under the conveying action of the first clamping and conveying mechanism 501 and the second clamping and conveying mechanism 502, achieves movement along the y-axis, thereby allowing the separator plate 504 to extend between the steel strip and the magnetic support roller, preventing the steel strip to be replaced or the newly replaced steel strip from being attracted to the magnetic support roller. The mounting frame 1 provides mounting support for the first clamping and conveying mechanism 501. By setting the sliding structure 7, the first clamping and conveying mechanism 501 can move along the x-axis, thereby adjusting the position of the separator plate 504. The sliding structure 7 can be a guide rod sleeve structure or a slider groove structure.

[0046] Specifically, the first clamping and conveying mechanism 501 is an active conveying mechanism, and the second clamping and conveying mechanism 502 is a passive conveying mechanism; both are existing technologies. The conveying roller in the first clamping and conveying mechanism 501 is driven by a conveying roller drive motor.

[0047] To achieve automatic control of the movement of the separating mechanism 5 along the x-axis, preferably, a separating mechanism drive motor 6 is also included. The first clamping and conveying mechanism 501 is connected to the mounting frame 1 via a lead screw 8, and the separating mechanism drive motor 6 is driven by the lead screw 8; the length direction of the lead screw 8 is parallel to the x-axis direction. The separating mechanism drive motor 6 is mounted on the mounting frame 1.

[0048] The first linear motion drive mechanism 2 and the second linear motion drive mechanism 304 are either pneumatic cylinders or hydraulic cylinders.

[0049] To facilitate the transfer of the steel strip assembly and disassembly trolley by forklift, preferably, the mounting frame 1 is provided with forklift holes 101, the axial direction of the forklift holes 101 is parallel to the y-axis direction; two forklift holes 101 are spaced apart along the x-axis direction, and the two forklift holes 101 are located on the same side of the mounting frame 1.

[0050] The partition 504 can be made of wood, preferably plastic.

[0051] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes made to the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A steel strip loading and unloading trolley for a double-strip continuous casting machine, characterized in that: It includes a mounting frame (1) and a steel strip support mechanism mounted on the mounting frame (1); with a plane rectangular coordinate system as the reference system, the steel strip support mechanism is mounted at both ends of the mounting frame (1) along the x-axis direction; The steel strip support mechanism includes a first linear motion drive mechanism (2) and a steel strip support frame (3). The steel strip support frame (3) is connected to the mounting frame (1) through the first linear motion drive mechanism (2). The first linear motion drive mechanism (2) is used to drive the steel strip support frame (3) to move along the x-axis. The steel strip support frame (3) includes a connecting seat (301), an arc-shaped support plate (302), and a roller mechanism (303); The connecting seat (301) is connected to the mounting frame (1) through the first linear motion drive mechanism (2); the arc-shaped support plate (302) protrudes outward from the mounting frame (1), the length direction of the arc-shaped support plate (302) is parallel to the y-axis, and the inner side of the arc-shaped support plate (302) is connected to the connecting seat (301); The arc-shaped support plate (302) has a through hole (3021); The roller seat of the roller mechanism (303) is connected to the connecting seat (301) through a second linear motion drive mechanism (304), which drives the roller (3031) of the roller mechanism (303) to extend or retract from the through hole (3021).

2. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: It also includes a first linear motion guide mechanism (4) that guides along the x-axis direction, and the steel strip support frame (3) is connected to the mounting frame (1) through the first linear motion guide mechanism (4).

3. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: A roller drive motor is mounted on the roller base, and the roller (3031) is driven by the roller drive motor.

4. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: It also includes a second linear motion guide mechanism (305), which guides the arc-shaped support plate (302) radially; the roller seat and the connecting seat (301) are connected through the second linear motion guide mechanism (305).

5. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: It also includes a partition mechanism (5) installed on the mounting frame (1), with the partition mechanism (5) installed both above and below the mounting frame (1); The separating mechanism (5) includes a first clamping and conveying mechanism (501), a second clamping and conveying mechanism (502), a lifting mechanism (503), and a separating plate (504); The first clamping and conveying mechanism (501) is connected to the mounting frame (1) through a sliding structure (7), and the first clamping and conveying mechanism (501) moves along the x-axis direction; The second clamping and conveying mechanism (502) is located on the side opposite to the first clamping and conveying mechanism (501) and the mounting frame (1). The first clamping and conveying mechanism (501) and the second clamping and conveying mechanism (502) are connected by a lifting mechanism (503). The partition plate (504) is located between the first clamping and conveying mechanism (501) and the second clamping and conveying mechanism (502). The first clamping and conveying mechanism (501) and the second clamping and conveying mechanism (502) convey the partition plate (504) along the y-axis direction.

6. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 5, characterized in that: It also includes a separation mechanism drive motor (6), the first clamping and conveying mechanism (501) is connected to the mounting frame (1) through a lead screw (8), and the separation mechanism drive motor (6) is connected to the lead screw (8) in a transmission connection; The length direction of the lead screw (8) is parallel to the x-axis direction.

7. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: The first linear motion drive mechanism (2) and the second linear motion drive mechanism (304) are cylinders.

8. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 1, characterized in that: The mounting bracket (1) is provided with forklift holes (101), the axial direction of which is parallel to the y-axis; two forklift holes (101) are provided at intervals along the x-axis, and the two forklift holes (101) are located on the same side of the mounting bracket (1).

9. The steel strip loading and unloading trolley for a double-strip continuous casting machine as described in claim 5, characterized in that: The partition plate (504) is a plastic product.

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