Cutter, deburring machine and method for deburring continuous casting chamfered plate blank

Abstract

The invention relates to the technical field of slab machining, and discloses a tool, a deburring machine and a method for deburring a continuous casting chamfered slab, the tool has a first direction, a second direction and a third direction which are vertically intersected in pairs, the tool comprises an elastic tool apron and a blade, the elastic tool apron is arranged in the third direction, and the blade is arranged in the first direction. The bottom of the elastic tool apron is connected with a deburring machine, the top of the elastic tool apron is connected with the blade, a first step face and a second step face are arranged at the two ends of the blade in the first direction, and the first step face and the second step face are arranged in a staggered mode in the third direction. The two ends, in the second direction, of each blade are provided with sawtooth-shaped cutting edges, and the first step faces and the second step faces of every two adjacent blades are oppositely arranged in the third direction. The device has the beneficial effects that the narrow edge chamfering surface of the plate blank is prevented from being scratched, and the quality of a finished plate blank product is improved.

Description

Technical Field

[0001] The invention relates to the technical field of slab processing, and in particular to a tool, a deburring machine and a method for deburring a continuous casting chamfered slab. Background Art

[0002] After continuous casting, the slab is cut into sections of a certain length by a flame cutting machine to form an iron oxide nodule, and then transported to the plate line for a second cutting to a fixed length. Due to the adhesion of steel slag (referred to as billet burrs) under each cut of the steel billet during flame cutting, this burr is relatively hard. If it is not removed or not removed cleanly, it may be embedded in the steel plate during the subsequent rolling process, resulting in unqualified steel plate quality and waste products. At the same time, it also causes great damage to the rolling rollers, which will directly affect the company's production efficiency and production costs.

[0003] In the prior art, deburring machines are mainly used to scrape the burrs, such as Figure 1 As shown, the deburring machine is equipped with multiple sets of independently set cutting tools, each set of cutting tools includes an elastic cutting tool holder and a blade. During the deburring process of the slab, each set of cutting tools moves in a direction perpendicular to the slab conveying path to complete the scraping. During the deburring process of the slab, two sets of cutting tools adjacent to the edge of the slab, one set is in a compressed state, and the other set is in a normal state. Due to the lack of a connection structure between adjacent cutting tools, they cannot be pressed down synchronously. During the movement of the slab, the narrow chamfered surface of the slab contacts the blade edge of the cutting tool that is not pressed down, causing scratches, affecting the quality of the finished slab, and reducing production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a tool, a deburring machine and a method for deburring continuous casting chamfered slabs, so as to avoid scratches on the narrow chamfered surface of the slabs and improve the quality of the finished slabs.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a tool for deburring continuous casting chamfered slabs, having a first direction, a second direction and a third direction that intersect each other perpendicularly, comprising an elastic tool seat and a blade, the elastic tool seat is arranged along the third direction, the bottom of the elastic tool seat is connected to a deburring machine, the top of the elastic tool seat is connected to the blade, the blade is provided with a first step surface and a second step surface at both ends of the first direction, the first step surface and the second step surface are staggered in the third direction, the blade is provided with a serrated cutting edge at both ends of the second direction, and the first step surface and the second step surface of two adjacent blades are arranged opposite to each other in the third direction.

[0006] Furthermore, the opening depth of the first step surface in the third direction is L1, the opening depth of the second step surface in the third direction is L2, and the maximum length of the blade in the third direction is L, satisfying L1=L2, and L1+L2≤L.

[0007] Furthermore, the length of the first step surface in the first direction is W1, the length of the second step surface in the first direction is W2, and the maximum length of the blade in the first direction is W, satisfying W1=W2, and 1 / 3W≤W1≤1 / 2W.

[0008] Furthermore, the cross-sectional shape of the blade at the cross section where the midline of the blade in the third direction is located is an isosceles trapezoid.

[0009] Furthermore, the shape of the cross section of the blade in the first direction is a centrally symmetrical figure.

[0010] Furthermore, the cross-section of the blade in the first direction is in a Z-shape.

[0011] Furthermore, the blade is provided with countersunk holes for connecting with the elastic blade holder at intervals in the first direction and the second direction.

[0012] Furthermore, a nickel-plated alloy layer is sprayed on the surface of the serrated cutting edge, and the thickness of the nickel-plated alloy layer is 0.5 mm-1 mm.

[0013] The present invention provides a deburring machine for continuous casting chamfered slabs, comprising a tool for deburring continuous casting chamfered slabs as described in any one of the above items, and also comprising a conveying roller, a first driving mechanism, and a second driving mechanism. The conveying roller is used to convey the slabs, the first driving mechanism and the second driving mechanism are located below the conveying roller, the output end of the first driving mechanism is connected to the second driving mechanism, the first driving mechanism is used to drive the second driving mechanism to reciprocate and flip in a third direction, the output end of the second driving mechanism is connected to the elastic tool holder, and the second driving mechanism is used to drive the tool holder to reciprocate along the first direction.

[0014] The present invention also provides a deburring method for continuous casting chamfered slabs. The above-mentioned deburring machine for continuous casting chamfered slabs comprises the following steps:

[0015] S1, the conveying roller conveys the slab along the second direction to the deburring station;

[0016] S2, the first driving mechanism is actuated to drive the elastic knife holder to move in the third direction close to the slab, so that the blade is pressed against the bottom surface of the slab and compresses the elastic knife holder;

[0017] S3, the second driving mechanism is actuated to drive the elastic knife holder to reciprocate in the first direction, so that the blade removes burrs on the bottom of the slab.

[0018] Compared with the prior art, the embodiment of the present invention provides a tool, a deburring machine and a method for deburring continuous casting chamfered slabs, and has the following beneficial effects: a first step surface and a second step surface are provided at both ends of the blade in the first direction, and the first step surface and the second step surface are staggered in a third direction. Since multiple groups of tools are arranged at intervals along the first direction, the first step surfaces and the second step surfaces of two adjacent blades are arranged relative to each other in the third direction. During the process of moving and deburring the slab, the adjacent tool close to the edge of the slab is clamped together with the first step surface and the second step surface. While the slab compresses the tool below the edge of the slab to deburr, the elastic tool holder of the adjacent tool located on the outside of the slab is simultaneously compressed, thereby avoiding contact and scratching between the narrow chamfered surface of the slab and the blade edge of the tool that is not pressed down, thereby ensuring the quality of the finished slab and improving production efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a tool of a deburring machine in the prior art;

[0020] Figure 2 This is a diagram showing the use status of a tool for deburring a continuous casting chamfered slab according to an embodiment of the present invention;

[0021] Figure 3 is a top view of a tool for deburring a continuous casting chamfered slab according to an embodiment of the present invention;

[0022] Figure 4 is a side sectional view of a tool for deburring a continuous casting chamfered slab according to an embodiment of the present invention;

[0023] Figure 5 It is a main cross-sectional view of a tool for deburring a continuous casting chamfered slab according to an embodiment of the present invention;

[0024] Figure 6 This is a structural principle diagram of a continuous casting chamfering slab deburring machine according to an embodiment of the present invention;

[0025] Figure 7 It is an assembly reference diagram of a tool for deburring a continuous casting chamfered slab according to an embodiment of the present invention.

[0026] In the figure, 1, elastic knife seat; 2, blade; 21, first step surface; 22, second step surface; 23, serrated cutting edge; 24, countersunk hole; 3, conveyor roller; 4, first driving mechanism; 5, second driving mechanism; 6, first photoelectric sensor; 7, second photoelectric sensor; a, slab; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0030] In the prior art, such as Figure 1 As shown, since each group of adjacent tools is independently set and cannot be linked, when the slab moves along the first direction X to remove burrs, at the edge of the slab, one of the adjacent tools is in a compressed state and the other tool is in a normal state. The narrow chamfered surface of the slab contacts the edge of the blade 2 of the tool that is not pressed down, causing scratches and affecting the quality of the finished product of the slab.

[0031] like Figures 2 to 7 As shown, a tool for deburring a continuous casting chamfered slab according to a preferred embodiment of the present invention has a first direction X, a second direction Y and a third direction Z that intersect each other perpendicularly, and includes an elastic tool holder 1 and a blade 2, wherein the first direction X is the length direction of the blade 2, the second direction Y is the width direction of the blade 2, and the third direction Z is the height direction of the blade 2. Specifically, the elastic tool holder 1 (the structure of the elastic tool holder 1 is the existing conventional technology, such as Figure 7 As shown, therefore, its structure is not described in detail) is arranged along the third direction Z, the bottom of the elastic knife seat 1 is connected to the deburring machine, and the top of the elastic knife seat 1 is connected to the blade 2. In order to realize the linkage of the blades 2 between adjacent tools, the blade 2 is provided with a first step surface 21 and a second step surface 22 at both ends in the first direction X, and the first step surface 21 and the second step surface 22 are staggered in the third direction Z. The blade 2 is provided with a serrated edge 23 at both ends in the second direction Y, and the first step surfaces 21 and the second step surfaces 22 of the two adjacent blades 2 are arranged oppositely in the third direction Z to form a clamping structure, see Figure 2 , Figure 6When the slab is deburred, the tool below the edge of the slab will be compressed to deburr the slab, and at the same time, the tool located outside the slab and adjacent to it will be compressed synchronously. The two adjacent sets of tools are compressed synchronously to avoid contact and scratching between the narrow chamfered surface of the slab and the blade 2 of the tool that is not pressed down, thereby ensuring the quality of the finished slab and improving production efficiency and yield rate.

[0032] In some embodiments, in order to ensure the structural strength of the blade 2, it is necessary to set the depth of the first step surface 21 and the second step surface 22 on the blade 2, such as Figure 5 As shown, the opening depth of the first step surface 21 in the third direction Z is L1, the opening depth of the second step surface 22 in the third direction Z is L2, and the maximum length of the blade 2 in the third direction Z is L, satisfying L1=L2, and L1+L2≤L, that is, L1≤0.5L. When L1 is much smaller than 0.5L, the connection between adjacent blades 2 is not firm enough. When L1>0.5L, the overall strength of the blade 2 is weak, it is easy to be damaged, and needs to be replaced frequently, affecting production efficiency.

[0033] In some embodiments, in order to ensure the structural strength of the blade 2 and facilitate processing, a linkage effect between adjacent cutting tools is provided. Figure 5 , the length of the first step surface 21 in the first direction X is W1, the length of the second step surface 22 in the first direction X is W2, and the maximum length of the blade 2 in the first direction X is W, satisfying W1=W2, and 1 / 3W≤W1≤1 / 2W. W1 can be adjusted according to actual design requirements. If W1≤1 / 3W, when the slab compresses the cutter below the edge of the slab, the adjacent cutters are prone to warping, and the clamping structure between the adjacent cutters is not stable enough and is prone to detachment, causing scratches on the surface of the slab.

[0034] In some embodiments, in order to design the structure of the blade 2, simplify the processing difficulty, and facilitate error prevention when assembling with the elastic blade holder 1, as shown in FIG. Figure 4 As shown, the cross-sectional shape of the blade 2 at the cross section AA where the midline in the third direction Z is located is an isosceles trapezoid. In some embodiments, in order to facilitate the design of the structure of the blade 2, refer to Figure 2 , Figure 5 , the shape of the BB cross section of the blade 2 in the first direction X is a central symmetrical figure. In this embodiment, the shape of the BB cross section of the blade 2 in the first direction X is a Z-shape. Further, in order to facilitate the clamping of adjacent blades 2 in the first direction X, the edges of the first step surface 21 and the second step surface 22 are chamfered.

[0035] Further, in order to facilitate the fixed connection between the blade 2 and the elastic blade holder 1, refer to Figure 3 , Figure 4The blade 2 is provided with countersunk holes 24 for connecting with the elastic blade holder 1 at intervals in the first direction X and the second direction Y, and the countersunk holes 24 are assembled with screws to be fixedly connected with the elastic blade holder 1.

[0036] When the surface of the serrated blade is worn by more than 3mm, the scraper needs to be replaced in time. If it is not replaced, the deburring effect will be affected. Therefore, in some embodiments, in order to improve the structural strength of the serrated edge 23 and improve the overall life of the blade 2, the serrated edge 23 can be made of special alloy steel. Specifically, a nickel-plated alloy layer is sprayed on the surface of the serrated edge 23 using supersonic flame technology, and the thickness of the nickel-plated alloy layer is 0.5mm-1mm. The nickel-plated alloy layer has a high bonding strength with the blade 2, which can improve the wear resistance and corrosion resistance of the scraper and significantly improve the overall life of the blade 2.

[0037] In this embodiment, the blade is serrated, with high strength, good toughness and impact resistance. The blade can easily lock the irregular shaped slab burrs, and the deburring effect is good; multiple serrated blades 2 are combined into a wavy cutting edge, which is installed on the deburring machine and forms a certain angle with the end face of the slab, so that the burr is in point contact with the blade, which greatly reduces the deburring resistance.

[0038] The present invention provides a deburring machine for continuous casting chamfered slabs, comprising the above-mentioned tool for deburring continuous casting chamfered slabs, referring to Figure 6 , further comprising a conveying roller 3, a first driving mechanism 4, and a second driving mechanism 5, wherein the conveying roller 3 is used to convey the slab, the first driving mechanism 4 and the second driving mechanism 5 are located below the conveying roller 3, the output end of the first driving mechanism 4 is connected to the second driving mechanism 5, the first driving mechanism 4 is used to drive the second driving mechanism 5 to reciprocate and flip in the third direction Z, the output end of the second driving mechanism 5 is connected to the elastic knife holder 1, and the second driving mechanism 5 is used to drive the knife holder to reciprocate along the second direction Y. The first driving mechanism 4 generally uses an oil cylinder to achieve reciprocating and flipping in the third direction Z, and the second driving mechanism 5 can be driven by a hydraulic motor to drive the blade 2 to reciprocate in the second direction Y.

[0039] The present invention also provides a deburring method for continuous casting chamfered slabs, based on the above-mentioned deburring machine for continuous casting chamfered slabs, comprising the following steps:

[0040] S1, the conveying roller 3 conveys the slab along the second direction Y to the deburring station;

[0041] S2, the first driving mechanism 4 is actuated to drive the elastic knife holder 1 to move closer to the slab in the third direction Z, so that the blade 2 is pressed against the bottom surface of the slab and compresses the elastic knife holder 1;

[0042] S3, the second driving mechanism 5 is activated to drive the elastic knife holder 1 to reciprocate in the first direction X, so that the blade 2 removes the burrs on the bottom of the slab.

[0043] In step S1, in order to facilitate the determination of the conveying position of the slab and the operation of the first driving mechanism 4 and the second driving mechanism 5, refer to Figure 6 , a first photoelectric sensor 6 and a second photoelectric sensor 7 are provided above the conveyor roller 3. The conveyor roller 3 is started to convey the slab to the deburring station along the positive direction of the second direction Y at a speed of 8m / min-30m / min. In step S2, when the first photoelectric sensor 6 senses the head of the slab, it drives the elastic knife seat 1 to move close to the slab in the third direction Z. When the second photoelectric sensor 7 senses the head of the slab, the blade 2 is pressed against the bottom surface of the slab to compress the elastic knife seat 1. In step S3, the second driving mechanism 5 is actuated to drive the elastic knife seat 1 to reciprocate in the first direction X, so that the blade 2 removes the burrs at the bottom of the slab. After the burrs at the head of the slab are removed, the conveyor roller 3 reverses and repeats steps S2 and S3 to remove the burrs at the tail of the slab.

[0044] In summary, the embodiments of the present invention provide a tool, a deburring machine and a method for deburring continuous casting chamfered slabs. The blade 2 is provided with a first step surface 21 and a second step surface 22 at both ends in the first direction X. The first step surface 21 and the second step surface 22 are staggered in the third direction Z. Since multiple groups of tools are arranged at intervals along the first direction X, the first step surfaces 21 and the second step surfaces 22 of two adjacent blades 2 are relatively arranged in the third direction Z. During the process of moving and deburring the slab, the adjacent tool close to the edge of the slab, due to the clamping arrangement of the first step surface 21 and the second step surface 22, the slab compresses the tool below the edge of the slab to deburr, and at the same time, the elastic tool holder 1 of the tool located on the outside of the slab and adjacent to the tool will be compressed synchronously, so as to avoid contact and scratches between the narrow chamfered surface of the slab and the cutting edge of the blade 2 of the tool that is not pressed down, thereby ensuring the quality of the finished slab and improving production efficiency and yield rate.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A tool for deburring continuous casting chamfered slabs, having a first direction, a second direction and a third direction which intersect each other perpendicularly, characterized in that: It includes an elastic knife seat and a blade, the elastic knife seat is arranged along the third direction, the bottom of the elastic knife seat is connected to the deburring machine, the top of the elastic knife seat is connected to the blade, the blade is provided with a first step surface and a second step surface at both ends of the first direction, the first step surface and the second step surface are staggered in the third direction, the blade is provided with a serrated cutting edge at both ends of the second direction, and the first step surface and the second step surface of two adjacent blades are arranged opposite to each other in the third direction.

2. The tool for deburring continuous casting chamfered slabs according to claim 1, characterized in that: The opening depth of the first step surface in the third direction is L1, the opening depth of the second step surface in the third direction is L2, and the maximum length of the blade in the third direction is L, satisfying L1=L2, and L1+L2≤L.

3. The tool for deburring continuous casting chamfered slabs according to claim 2, characterized in that: The length of the first step surface in the first direction is W1, the length of the second step surface in the first direction is W2, and the maximum length of the blade in the first direction is W, satisfying W1=W2, and 1 / 3W≤W1≤1 / 2W.

4. The tool for deburring continuous casting chamfered slabs according to claim 1, characterized in that: The cross-sectional shape of the blade at the cross section where the midline of the blade in the third direction is located is an isosceles trapezoid.

5. The tool for deburring continuous casting chamfered slab according to claim 1, characterized in that: The shape of the cross section of the blade in the first direction is a centrally symmetrical figure.

6. The tool for deburring continuous casting chamfered slabs according to claim 5, characterized in that: The cross section of the blade in the first direction is in a Z-shape.

7. The tool for deburring continuous casting chamfered slabs according to any one of claims 1 to 6, characterized in that: The blade is provided with countersunk holes for connecting with the elastic blade seat at intervals in the first direction and the second direction.

8. The tool for deburring continuous casting chamfered slab according to any one of claims 1 to 6, characterized in that: The surface of the serrated cutting edge is sprayed with a nickel-plated alloy layer, and the thickness of the nickel-plated alloy layer is 0.5 mm-1 mm.

9. A deburring machine for continuous casting chamfered slabs, comprising the tool for deburring continuous casting chamfered slabs according to any one of claims 1 to 8, characterized in that: It also includes a conveying roller, a first driving mechanism, and a second driving mechanism. The conveying roller is used to convey the slab. The first driving mechanism and the second driving mechanism are located below the conveying roller. The output end of the first driving mechanism is connected to the second driving mechanism. The first driving mechanism is used to drive the second driving mechanism to reciprocate and flip in a third direction. The output end of the second driving mechanism is connected to the elastic knife holder. The second driving mechanism is used to drive the knife holder to reciprocate along the first direction.

10. A deburring method for continuous casting chamfered slabs, based on the deburring machine for continuous casting chamfered slabs according to claim 9, characterized in that: The following steps are involved: S1, the conveying roller conveys the slab along the second direction to the deburring station; S2, the first driving mechanism is actuated to drive the elastic knife holder to move in the third direction close to the slab, so that the blade is pressed against the bottom surface of the slab and compresses the elastic knife holder; S3, the second driving mechanism is actuated to drive the elastic knife holder to reciprocate in the first direction, so that the blade removes burrs on the bottom of the slab.

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