Deburring device capable of improving burr removing rate of plate blank

Abstract

The utility model discloses a deburring device capable of improving plate blank deburring rate, which comprises a deburring machine positioned on a roller way and is characterized in that a spraying device is arranged on the roller way in front of the deburring machine and comprises a spraying pipe, a front baffle and a rear baffle, the spraying pipe is arranged below the roller way, and the front baffle and the rear baffle are respectively arranged on two sides of the spraying pipe. A plurality of spray heads are arranged on the spray pipe; a photoelectric switch used for monitoring the position of the plate blank is further arranged on the roller way. According to the structure, the spraying device is adopted, and conditions are provided for deburring of the deburring machine for cutting knobs in a cooling and melting state. Meanwhile, through the front baffle and the rear baffle, cooling effectiveness can be guaranteed, and spraying water is prevented from splashing and affecting other devices. The deburring machine has the advantages of being simple in structure, convenient to maintain and high in automation degree, the cleaning rate of the deburring machine is greatly guaranteed, and then the stability of casting blank quality is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of continuous casting equipment in iron and steel metallurgy, and specifically relates to a deburring device for improving the burr removal rate of slabs. Background Technology

[0002] During the continuous casting process of slabs, when cutting to length, the blowing of oxygen at the kerf causes a large amount of iron oxide and metal inclusions to flow to the bottom of the slab, forming blocky cutting nodules, which affect product quality. In existing technology, deburring machines are typically used to remove these nodules. A deburring machine is a mechanism in the continuous casting machine that uses mechanical hammering to remove cutting nodules; it is installed at the rear of the continuous casting machine, behind the flame cutting carriage.

[0003] In actual production, due to the high temperature of the cutting nodule and the billet, when the billet reaches the deburring machine position, the cutting nodule is in a partially molten state, making it difficult to remove during deburring, resulting in quality defects such as scabs on the rolled steel plate. Utility Model Content

[0004] The purpose of this invention is to provide a deburring device that improves the burr removal rate of slabs, thereby solving the problems in the prior art.

[0005] This utility model is achieved through the following technical solution: a deburring device for improving the burr removal rate of slabs, comprising a deburring machine located on a roller conveyor, characterized in that: a spraying device is provided on the roller conveyor in front of the deburring machine, the spraying device comprising a spray pipe disposed below the roller conveyor and a front baffle and a rear baffle respectively disposed on both sides of the spray pipe, and a plurality of nozzles are disposed on the spray pipe; a photoelectric switch for monitoring the position of the slab is also disposed on the roller conveyor.

[0006] Furthermore: the front baffle is arc-shaped, with both ends fixed to the rotating arm, and the rotating arm rotates in coordination with the roller conveyor.

[0007] Furthermore: the rotating arm is S-shaped or J-shaped, with the upper part fixed to the baffle and the lower part provided with a counterweight.

[0008] Furthermore: the rear baffle is J-shaped, with both ends fixed to the lifting arm, and the lifting arm is in conjunction with the roller conveyor for lifting.

[0009] Furthermore: the lifting arm cooperates with the guide groove set on the roller conveyor, and a lifting spring is provided below the lifting arm, with both ends of the lifting spring fixed to the lower end of the lifting arm and the roller conveyor respectively.

[0010] Furthermore, the opening on the nozzle is rectangular, and the shorter side of the rectangle is aligned with the length direction of the roller conveyor.

[0011] Furthermore: side plates are provided on both sides of the roller conveyor in the width direction, and a water trough is provided below the roller conveyor.

[0012] The beneficial effects of this utility model are as follows: Addressing the shortcomings of existing technologies, this utility model employs a spray device to remove burrs from the molten cutting edge during cooling, thus providing conditions for the deburring machine. Simultaneously, the front and rear baffles ensure effective cooling while preventing splashing of spray water and its impact on other equipment. This utility model features a simple structure, convenient maintenance, and a high degree of automation, greatly ensuring the deburring rate of the deburring machine and thereby improving the stability of the cast billet quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the structure of the spraying device in conjunction with the front and rear parts of the slab;

[0015] Figure 3 This is a schematic diagram of the front baffle structure;

[0016] Figure 4 This is a schematic diagram of the rear bumper structure.

[0017] The numbers in the diagram are explained as follows: 1 is slab, 2 is deburring machine, 3 is spraying device, 31 is spray pipe, 32 is nozzle, 33 is front baffle, 34 is rotating arm, 35 is counterweight, 36 is rear baffle, 37 is lifting arm, 38 is lifting spring, 4 is photoelectric switch, 6 is roller conveyor, 61 is side plate, and 62 is guide groove. Detailed Implementation

[0018] Reference Appendix Figure 1-4 This utility model discloses a deburring device for improving the burr removal rate of slabs, including a deburring machine 2 located on a roller conveyor 6, and a spraying device 3 provided on the roller conveyor 6 in front of the deburring machine 2.

[0019] The spraying device 3 includes a spray pipe 31 located below the roller conveyor 6 and a front baffle 33 and a rear baffle 36 that cooperate with the slab 1. Multiple nozzles 32 are provided on the spray pipe 31. A photoelectric switch 4 for monitoring the position of the slab 1 is also provided on the roller conveyor 6.

[0020] Preferably, the baffle 33 is arc-shaped, with both ends fixed to the rotating arm 34, and the rotating arm 34 is rotatably engaged with the roller conveyor 6.

[0021] Preferably, the rotating arm 34 is S-shaped or J-shaped, with its upper part fixed to the baffle 33 and its lower part equipped with a counterweight. A shaft hole is provided in the middle to cooperate with a rotating shaft mounted on the roller conveyor or fixed support, thereby achieving rotation within a certain range relative to the roller conveyor. The counterweight ensures that, in the free state, the front baffle is positioned above, i.e. Figure 2 The state on the left.

[0022] Preferably, the rear baffle 36 is an inverted J-shape with its upper end tilted forward. In its free state, the upper end is equal to or slightly higher than the upper surface of the slab. When the slab moves and contacts the inclined surface, the rear baffle can be pressed down. Both ends of the rear baffle are fixed to the lifting arm 37, which is in lifting cooperation with the roller conveyor 6.

[0023] Preferably, the lifting arm 37 cooperates with the guide groove 39 provided on the roller conveyor 62, the lifting arm 37 can slide up and down in the guide groove 62, and a lifting spring 38 is provided below the lifting arm, with the two ends of the lifting spring 38 fixed to the lower end of the lifting arm 37 and the roller conveyor 6 respectively.

[0024] Preferably, the opening on the nozzle 32 is rectangular, and the short side of the rectangle is aligned with the length direction of the roller conveyor 6.

[0025] Preferably, side plates 61 are provided on both sides of the roller conveyor 6 in the width direction, and a water tank or drainage channel is provided below the roller conveyor 6 to discharge cooling water.

[0026] In this design, the front and rear baffles are inverted J-shaped (or folded), with the inclined portions facing opposite directions. The front baffle is rotatably mounted on the roller conveyor. To prevent interference with the drive rollers, the rotating arm can be bent to avoid interference, thus forming an S-shape.

[0027] In this solution, the connections between components not detailed in detail are all conventional. Each component can move freely without interfering with other components.

[0028] Example: This example provides a deburring device for improving the burr removal rate of slabs, comprising a deburring machine 2, a steel slab 1, a spraying device 3, a photoelectric switch 4, a solenoid valve, and a roller conveyor 6. The spraying pipe of the spraying device is fixed to the fixed part of the continuous casting roller conveyor by bracket bolts. Nine high-pressure nozzles are equidistantly connected to the spraying pipe. The high-pressure nozzles use flat-hole nozzles to improve the spraying area and uniform spraying. The nozzle height is lower than the drive roller. The spraying pipe controls the on / off state of the high-pressure pump through the solenoid valve, thereby controlling whether water is sprayed, and the spraying duration is controlled by a timer. The input of the photoelectric switch is matched with the slab, and the output is electrically connected to the solenoid valve. When the slab reaches the sensing position of the photoelectric switch, the photoelectric switch transmits a signal to the solenoid valve, the solenoid valve conducts, and water spraying stops after a certain time. When the slab leaves, water spraying continues for a certain time before stopping again. The preferred spraying time is 8 seconds.

[0029] Combined with appendix Figure 2 The working process of this embodiment is described below, wherein, Appendix Figure 2 The left and right sides are schematic diagrams of the front and rear sections of the corresponding slab.

[0030] When the front of the slab reaches the sensing position of the photoelectric switch, the switch detects the slab and outputs a signal to control the spray pipe to spray for 8 seconds. At this time, the rear baffle is pressed down, and its upper edge is located behind the nozzle and in contact with the bottom surface of the slab. The upper edge of the front baffle contacts the upper part of the front section of the slab and begins to rotate under the action of the slab. At this time, a relatively enclosed space is formed in front of and behind the nozzle, and the inclined surface of the front baffle can reflect the upward water to the section position to a certain extent, so that the sprayed water effectively acts on the section and the cutting edge, improving the cooling effect. At the same time, the action of the two baffles also prevents splashing.

[0031] When the rear of the slab reaches (or leaves) the sensing position of the photoelectric switch, the switch detects the slab's departure and outputs another signal to control the spray pipes to spray for 8 seconds. At this time, the rear baffle rises after detaching from the slab, and its upper edge mates with the upper part of the rear section of the slab (there will be a small gap as the slab moves forward, but this is negligible). The front baffle is pressed down, and its upper edge contacts the lower surface of the slab. At this point, a relatively enclosed space is formed in front of and behind the nozzles. The sprayed water effectively acts on the rear section and the cutting edge, improving cooling. Simultaneously, the action of the two baffles prevents splashing.

[0032] This cycle further ensures the stability of the deburring machine, solves the problem of incomplete burr removal from steel billets, and improves the quality of scale buildup on rolled steel plates. Verification shows that this solution effectively improves the burr removal rate of slabs, increasing it from 72.32% to 98.36%, an increase of 26.04%, while significantly reducing the number of scrap steel plates with scale buildup.

Claims

1. A deburring device for improving the burr removal rate of slabs, comprising a deburring machine (2) located on a roller conveyor (6), characterized in that: A spraying device (3) is installed on the roller conveyor (6) in front of the deburring machine (2). The spraying device (3) includes a spray pipe (31) located below the roller conveyor (6) and a front baffle (33) and a rear baffle (36) located on both sides of the spray pipe (31). Multiple nozzles (32) are provided on the spray pipe (31). A photoelectric switch (4) for monitoring the position of the slab (1) is also provided on the roller conveyor (6).

2. The deburring device for improving the burr removal rate of slabs according to claim 1, characterized in that: The front baffle (33) is arc-shaped and its two ends are fixed on the rotating arm (34). The rotating arm (34) rotates in conjunction with the roller conveyor (6).

3. The deburring device for improving the burr removal rate of slabs according to claim 2, characterized in that: The rotating arm (34) is S-shaped or J-shaped, with the upper part fixed to the baffle (33) and the lower part provided with a counterweight (35).

4. The deburring device for improving the burr removal rate of slabs according to claim 1, characterized in that: The rear baffle (36) is J-shaped and its two ends are fixed on the lifting arm (37). The lifting arm (37) and the roller conveyor (6) are raised and lowered in coordination.

5. The deburring device for improving the burr removal rate of slabs according to claim 4, characterized in that: The lifting arm (37) is matched with the guide groove (39) set on the roller conveyor (6), and a lifting spring (38) is set below the lifting arm. The two ends of the lifting spring (38) are fixed to the lower end of the lifting arm (37) and the roller conveyor (6) respectively.

6. The deburring device for improving the burr removal rate of slabs according to claim 1, characterized in that: The opening on the nozzle (32) is rectangular, and the short side of the rectangle is consistent with the length direction of the roller conveyor (6).

7. The deburring device for improving the burr removal rate of slabs according to claim 1, characterized in that: Side plates (61) are provided on both sides of the width direction of the roller conveyor (6), and a water tank is provided below the roller conveyor (6).

Images