A flame spraying device for use on a rolling mill

Abstract

The utility model belongs to metal processing device technical field discloses a flame spraying device used on a casting and rolling mill, including ball screw seat group, spray gun sliding seat group, spray gun subassembly, inductive board, proximity switch, proximity switch support, linear slide guide rail pair, travel switch. The utility model is perfect scheme to the defect of prior art equipment, solves the problem of swing when the spray gun walks, reduces the wear rate of screw rod, reduces the maintenance frequency of movement mechanism. At the same time, the problem of return failure during spray gun operation is solved, which cannot operate normally. It is equivalent to double insurance for operation overrun, basically eliminates the occurrence of the accident, greatly saves the maintenance time and the cost of funds.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal processing equipment, and in particular relates to a flame spraying device used on a casting and rolling mill. Background Technology

[0002] During the rolling process, flame spraying is required for both the upper and lower rollers in a casting and rolling mill to ensure a stable roller temperature. Addressing the issue of material adhesion during the rolling of low-melting-point metals such as aluminum and zinc, flame spraying forms a carbon layer on the roller surface, reducing the affinity between the roller surface and the material and preventing molten aluminum from sticking to the rollers. This ensures continuous production and reduces the frequency of downtime for roller cleaning. Uniform flame heating ensures a consistent temperature distribution on the roller surface, preventing localized overheating that could lead to roller surface cracking or thermal fatigue. Combined with the casting and rolling mill's water-cooling system, flame heating helps stabilize the roller surface temperature within a safe range, preventing roll deformation or the deepening of micro-cracks caused by temperature fluctuations. Flame spraying technology, by optimizing the roller surface condition, directly contributes to the continuous production and quality stability of aluminum strip billets.

[0003] The original flame spraying device, during production, relied on four bearings to move back and forth on the support, which easily caused swaying at both ends of the travel direction. This affected the service life of the spray gun and other components, and also caused wear on the wheel assembly and lead screw. Spray gun swaying also affected the quality of flame spraying, leading to uneven heating of the upper and lower roller surfaces, causing roller sticking on the rolling surface, affecting continuous production, and reducing production efficiency. Another problem with the original flame spraying device was that the inclined platform limit switch could not completely prevent the device from exceeding its travel limits; when the device swayed and damaged the proximity switch, it would expand the scope of the malfunction. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the current technology by providing a flame spraying device for use on a casting and rolling mill, which reduces wear and tear on the device itself during operation, lowers the maintenance frequency of the equipment, and improves the safety of the device operation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A flame spraying device used on a casting and rolling mill includes a ball screw seat assembly, a spray gun slide assembly, a spray gun assembly, a sensing plate, a proximity switch, a proximity switch bracket, a linear slider guide pair, and limit switches. The spray gun slide assembly is mounted on the screw of the ball screw seat assembly. The spray gun assembly is mounted above the spray gun slide assembly. The sensing plate is mounted on the side of the spray gun slide assembly. The proximity switch is mounted on the proximity switch bracket, which is mounted on both ends of the side of the ball screw seat assembly. The linear slider guide pair is mounted on the ball screw seat assembly and connected to the spray gun slide assembly. The limit switches are mounted on both ends of the upper part of the ball screw seat assembly.

[0007] Furthermore, the ball screw seat assembly is configured with a mounting base as the base plate, with motor end bearing seat assemblies and remote end bearing seat assemblies installed at both ends of the base, and the ball screw pair is installed in the mounting base by M12 bearing seat bolts at both ends.

[0008] Furthermore, the motor end bearing housing assembly consists of a bearing housing made of steel plate fitted into the bearing, and two open bearing caps on both sides of the bearing fixing the bearing in the bearing housing.

[0009] Furthermore, a bearing housing made of a steel plate is fitted into the bearing, and the bearing is fixed in the bearing housing by an open bearing cap and a closed bearing cap on both sides.

[0010] Furthermore, the spray gun slide assembly includes an elastic retaining ring, a wheel, a pin, a clamping block, an M6 clamping block bolt, a spray gun bracket, an M8 spray gun bracket bolt, and a slider mounting base. The wheel is mounted to the side of the slider mounting base via the pin and the elastic retaining ring. The spray gun bracket is fixed above the slider mounting base by the M8 spray gun bracket bolt, and the clamping block is clamped to the spray gun bracket by the M6 ​​clamping block bolt.

[0011] Furthermore, the spray gun slide block assembly is installed by the cooperation of the slider mounting seat and the ball screw pair in the ball screw seat assembly, and is assembled together with the ball screw seat assembly.

[0012] Furthermore, the spray gun assembly comprises an M6 counterweight set bolt, a counterweight, a guide rod, an M6 pressure plate bolt, a spray gun pressure plate I, a spray gun pressure plate II, and a flame spray gun. The counterweight passes through one side of the guide rod and is fastened by the M6 ​​counterweight set bolt. The thread on the other side of the guide rod is screwed into the threaded hole of the spray gun pressure plate II. The flame spray gun is clamped between the spray gun pressure plate I and the spray gun pressure plate II and is fastened by the M6 ​​pressure plate bolt.

[0013] Furthermore, the spray gun assembly is fixed by clamping the guide rod of the spray gun assembly with the clamping block of the spray gun slide block.

[0014] Furthermore, the linear slider guide pair is mounted on the ball screw seat assembly and connected to the spray gun slide assembly.

[0015] Furthermore, the limit switch is installed at both ends of the ball screw assembly, and the circuit is connected in parallel with the proximity switch.

[0016] Compared with existing devices, this invention has the following advantages and beneficial effects:

[0017] (1) This utility model guides the spray gun movement through a linear slider guide rail pair, which ensures the stability of the device during the movement process, makes the operation more uniform and smooth, and improves the spraying effect and quality of the device.

[0018] (2) With the guidance of this utility model, after the device is stabilized, the wear and malfunctions caused by swaying and vibration are greatly reduced, the failure rate and maintenance time of the equipment are reduced, and it is conducive to continuous production for a longer period of time.

[0019] (3) This utility model solves the problem of the spray gun slider not drawing the lead screw range by incorporating a limit switch, thus avoiding certain safety hazards. Attached Figure Description

[0020] Figure 1 This is a general structural diagram of the flame spraying device of this utility model;

[0021] Figure 2 This is an exploded view of the flame spraying device of this utility model;

[0022] Figure 3 This is an exploded view of the ball screw seat assembly of this utility model;

[0023] Figure 4 This is an exploded view of the motor end bearing housing assembly of this utility model;

[0024] Figure 5 This is an exploded view of the distal bearing housing assembly of this utility model.

[0025] Figure 6 This is an exploded view of the spray gun slide assembly of this utility model;

[0026] Figure 7 This is an exploded view of the spray gun assembly of this utility model. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] See Figure 1 , Figure 2 A flame spraying device used on a casting and rolling mill includes a ball screw seat assembly 1, a spray gun slide assembly 2, a spray gun assembly 3, a sensing plate 5, a proximity switch 7, a proximity switch bracket 9, a linear slider guide rail pair 11, and a limit switch 10. The spray gun slide assembly 2 is mounted on the screw of the ball screw seat assembly 1. The spray gun assembly 3 is mounted above the spray gun slide assembly 2 and fixed by clamping blocks clamping the guide rod. The sensing plate 5 is mounted on the side of the spray gun slide assembly 2 and fixed by M6 sensing plate bolts 6. The proximity switch 7 is mounted on the proximity switch bracket 9. The proximity switch bracket 9 is mounted on both ends of the side of the ball screw seat assembly 1 and fixed by M6 proximity switch direct bolts 8. The linear slider guide rail pair 11 is mounted on the ball screw seat assembly 1 and connected to the spray gun slide assembly 2. The limit switch 10 is mounted on both ends above the ball screw seat assembly 1.

[0029] The ball screw seat assembly 1 is the device mounting base, and the spray gun slide assembly 2 is installed on the screw slider inside it and fixed by the M8 screw seat bolt 4.

[0030] See Figure 3 The ball screw seat assembly 1 is constructed with a mounting base 103 as the base plate. The motor end bearing seat assembly 102 and the remote end bearing seat assembly 105 are mounted at both ends of the mounting base 103. The ball screw pair 104 is installed in the mounting base 103 by M12 bearing seat bolts 101 at both ends. The number of M12 bearing seat bolts 101 is 12.

[0031] See Figure 4 The motor end bearing housing assembly 102 consists of an M6 bearing cap nut 1021, an open bearing cap 1022, a bearing 1023, a bearing housing 1024, and an M6 bearing cap bolt 1025. The motor end bearing housing assembly 102 consists of a bearing housing 1024 machined from a steel plate fitted into the bearing 1023. The bearing 1023 is fixed in the bearing housing 1024 by two open bearing caps 1022 on both sides. There are four M6 bearing cap nuts 1021, four M6 bearing cap bolts 1025, and two open bearing caps 1022.

[0032] See Figure 5 The distal bearing housing assembly 105 consists of an M6 bearing cap nut 1051, an open bearing cap 1052, a closed bearing cap 1055, a bearing 1054, a bearing housing 1053, and an M6 bearing cap bolt 1056. The distal bearing housing assembly 105 consists of a bearing housing 1053 machined from a steel plate fitted into the bearing 1054. The bearing 1054 is fixed in the bearing housing 1053 by an open bearing cap 1052 and a closed bearing cap 1055 on both sides. There are 4 M6 bearing cap nuts 1051 and 4 M6 bearing cap bolts 1056.

[0033] See Figure 6 The spray gun slide assembly 2 includes an elastic retaining ring 201, a wheel 202, a shaft pin 203, a clamping block 204, an M6 clamping block bolt 205, a spray gun bracket 206, an M8 spray gun bracket bolt 207, and a slider mounting base 208. The wheel 202 is mounted to the side of the slider mounting base 208 via the shaft pin 203 and the elastic retaining ring 201. The spray gun bracket 206 is fixed above the slider mounting base 208 via the M8 spray gun bracket bolt 207. The clamping block 204 is clamped onto the spray gun bracket 206 via the M6 ​​clamping block bolt 205.

[0034] Among them, the number of elastic retaining rings was 4 after modification to 2, the number of wheels was 4 after modification to 2, the number of axle pins was 4 after modification to 2, the number of M6 clamping block bolts was 2, and the number of M8 spray gun bracket bolts was 4.

[0035] The spray gun slide block assembly is installed by the cooperation of the slider mounting base and the ball screw pair in the ball screw seat assembly, and is assembled together with the ball screw seat assembly.

[0036] See Figure 7 The spray gun assembly 3 comprises an M6 counterweight set bolt 301, a counterweight 302, a guide rod 303, an M6 pressure plate bolt 304, a spray gun pressure plate I 305, a spray gun pressure plate II 306, and a flame spray gun 307. The counterweight 302 passes through one side of the guide rod 303 and is fastened by the M6 ​​counterweight set bolt 301. The thread on the other side of the guide rod 303 is screwed into the threaded hole of the spray gun pressure plate II 306. The flame spray gun 307 is sandwiched between the spray gun pressure plate I 305 and the spray gun pressure plate II 306 and is fastened by the M6 ​​pressure plate bolt 304. There are four M6 pressure plate bolts.

[0037] The spray gun assembly is fixed by clamping the guide rod of the spray gun assembly with the clamping block of the spray gun slide block.

[0038] The sensor plate is installed above the spray gun slide and on the slider mounting base. The sensor plate is installed using M6 sensor plate bolts, and there are two of them.

[0039] The linear slider guide rail assembly is mounted on the ball screw seat assembly and connected to the spray gun slide assembly. The linear slider guide rail assembly is a standard assembly component, which is fixed with bolts at standard length intervals.

[0040] The limit switch is installed at both ends of the ball screw assembly, and the circuit is connected in parallel with the proximity switch. The limit switch is installed using M5 bolts, and there are 5 of them.

[0041] The proximity switch bracket is installed using M6 proximity switch bracket bolts, with a quantity of 8 bolts.

[0042] The method of using the flame spraying device on the casting and rolling mill of this utility model includes the following steps:

[0043] (1) Install the device into the casting and rolling mill;

[0044] (2) Connect the lead screw at the motor end of the spraying motor;

[0045] (3) Connect the electrical circuit;

[0046] (4) Connect the gas pipeline;

[0047] (5) Adjust the position of the counterweight and the spray gun to make the center balanced;

[0048] (6) Ignite the lighter and adjust the flame;

[0049] (7) The rolling mill operating motor rotates, and the motor drives the spray gun to move;

[0050] (8) By sensing the signal of the proximity switch, the flame gun is made to reciprocate on the track to achieve flame spraying.

[0051] This utility model is a modification scheme for existing equipment. This equipment is used in casting and rolling mills to flame-spray the upper and lower rolls during the rolling process, ensuring the roll temperature remains relatively stable. The existing equipment includes: a ball screw seat assembly composed of a mounting base, a motor-end bearing seat assembly, a distal bearing seat assembly, a rolling resistance screw pair, and M12 bearing seat bolts; the mounting base is welded from various steel plates and profiles; the motor-end bearing seat consists of a bearing, a bearing seat, an open bearing cap, M6 bolts, and nuts; the spray gun slide assembly consists of an elastic retaining ring, wheels, a shaft pin, a clamping block, M6 bolts, a spray gun bracket, M8 spray gun bracket bolts, and a slider mounting base; the spray gun assembly consists of an M6 counterweight set bolt, a counterweight, a guide rod, M6 pressure plate bolts, spray gun pressure plate I, spray gun pressure plate II, and a flame spray gun. Other electrical sensing circuits include: a sensing plate mounted on the spray gun slide assembly; a proximity switch bracket mounted on the mounting base; and a proximity switch mounted on the proximity switch bracket. This invention modifies the existing equipment structure by replacing the wheel assembly on one side of the spray gun slide block with a linear slider guide rail connection, and replacing the limit positions of the inclined platforms on both sides of the ball screw assembly with limit switches. This invention solves the problems of left-right swaying during operation of the flame spraying device, leading to mechanical wear and damage, and unstable flame, which affects production quality. Furthermore, it solves the problem of the spray gun derailing and burning out the motor when the proximity switch malfunctions.

[0052] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the scope of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A flame spraying device used on a casting and rolling mill, characterized in that: The system includes a ball screw seat assembly, a spray gun slide assembly, a spray gun assembly, a sensor plate, a proximity switch, a proximity switch bracket, a linear slider guide pair, and limit switches. The spray gun slide assembly is mounted on the screw of the ball screw seat assembly. The spray gun assembly is mounted above the spray gun slide assembly. The sensor plate is mounted on the side of the spray gun slide assembly. The proximity switch is mounted on the proximity switch bracket, which is mounted on both ends of the side of the ball screw seat assembly. The linear slider guide pair is mounted on the ball screw seat assembly and connected to the spray gun slide assembly. The limit switches are mounted on both ends of the upper part of the ball screw seat assembly.

2. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The ball screw assembly is constructed with a mounting base as the base plate, and motor end bearing seat assemblies and remote end bearing seat assemblies are installed at both ends of the base. The ball screw pair is installed in the mounting base by M12 bearing seat bolts at both ends.

3. The flame spraying device used on the casting and rolling mill according to claim 2, characterized in that: The motor end bearing housing assembly consists of a bearing housing made of steel plate fitted into the bearing, and two open bearing caps on both sides of the bearing to fix the bearing in the bearing housing.

4. The flame spraying device used on a casting and rolling mill according to claim 2, characterized in that: A bearing housing made of a steel plate is fitted into the bearing, and the bearing is fixed in the bearing housing by an open bearing cap and a closed bearing cap on both sides.

5. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The spray gun slide assembly includes an elastic retaining ring, a wheel, a pin, a clamping block, an M6 clamping block bolt, a spray gun bracket, an M8 spray gun bracket bolt, and a slider mounting base. The wheel is mounted to the side of the slider mounting base via the pin and the elastic retaining ring. The spray gun bracket is fixed above the slider mounting base by the M8 spray gun bracket bolt, and the clamping block is clamped to the spray gun bracket by the M6 ​​clamping block bolt.

6. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The spray gun slide block assembly is installed by the cooperation of the slider mounting base and the ball screw pair in the ball screw seat assembly, and is assembled together with the ball screw seat assembly.

7. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The spray gun assembly comprises an M6 counterweight set bolt, a counterweight, a guide rod, an M6 pressure plate bolt, a spray gun pressure plate I, a spray gun pressure plate II, and a flame spray gun. The counterweight passes through one side of the guide rod and is fastened by the M6 ​​counterweight set bolt. The thread on the other side of the guide rod is screwed into the threaded hole of the spray gun pressure plate II. The flame spray gun is clamped between the spray gun pressure plate I and the spray gun pressure plate II and is fastened by the M6 ​​pressure plate bolt.

8. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The spray gun assembly is fixed by clamping the guide rod of the spray gun assembly with the clamping block of the spray gun slide block.

9. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The linear slider guide pair is mounted on the ball screw seat assembly and connected to the spray gun slide assembly.

10. The flame spraying device used on a casting and rolling mill according to claim 1, characterized in that: The limit switch is installed at both ends of the ball screw assembly, and the circuit is connected in parallel with the proximity switch.

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