A flame cutting device with an adjustable baffle

Abstract

This invention discloses a flame cutting device with an adjustable baffle, comprising: a baffle mounted on a flame cutting gun and capable of moving together with the flame cutting gun; and an adjustable baffle mounted on an adjusting frame and capable of approaching or moving away from the nozzle of the flame cutting gun via the adjusting frame, the adjustable baffle having a through hole corresponding to the nozzle; wherein the adjustable baffle has a first position and a second position. In the first position, the through hole isolates the outer flame of the flame ejected from the nozzle, allowing only the inner flame of the flame ejected from the nozzle to pass through. In the second position, the adjustable baffle is used to approach the object to be burned, the through hole accommodating both the inner and outer flames of the nozzle and preventing the flame from scattering outward. The beneficial effects include reducing the impact of flame cutting on the surrounding area and improving the quality of hot-cut steel plates. This invention applies to the field of flame cutting technology.

Description

Technical Field

[0001] This invention relates to the field of flame cutting technology, and in particular to a flame cutting device with an adjustable baffle. Background Technology

[0002] Oxyacetylene flame is the flame produced by the combustion of acetylene (commonly known as calcium carbide gas) in air. Temperatures can reach over 3000℃, and it is commonly used for cutting and welding metals. When cutting with oxyacetylene, only the speed of the ejected acetylene can be adjusted, thereby controlling the flame size (similar to a lighter). However, when cutting steel plates or enlarging holes with an oxyacetylene flame, the flame can blacken the surrounding steel plate, affecting its appearance, or carbonize it, impacting the quality of the steel plate, or altering the microstructure of the heat-affected zone and affecting the stress performance of the hole. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a flame cutting device with an adjustable baffle, which can reduce the impact of flame cutting on the surrounding area and improve the quality of thermally cut steel plates.

[0004] The technical solution adopted in this embodiment of the invention is: a flame cutting device with an adjustable baffle, comprising: an adjustment frame for being mounted on a flame cutting gun and capable of moving together with the flame cutting gun; an adjustment baffle mounted on the adjustment frame and capable of approaching or moving away from the nozzle of the flame cutting gun through the adjustment frame, the adjustment baffle having a through hole that corresponds to the nozzle.

[0005] The flame cutting apparatus with an adjustable baffle according to embodiments of the present invention has at least the following beneficial effects:

[0006] 1. When it is necessary to cut an object, adjust the relative position of the through hole of the adjusting baffle and the flame cutting gun or the size of the flame cutting gun by adjusting the adjusting bracket so that the through hole can only accommodate the inner flame of the flame cutting gun, while the outer flame will be blocked by the adjusting baffle. This will achieve cutting only the inner flame, reduce the influence of the outer flame on the object being cut, and improve cutting accuracy and cutting quality.

[0007] 2. When it is necessary to burn an object, adjust the relative position of the through hole of the adjusting baffle and the flame cutting gun or the size of the flame cutting gun by adjusting the adjusting bracket. The adjusting baffle is close to the object to be burned, and the through hole in the adjusting baffle allows the outer flame to pass through, so that the outer flame and the inner flame can burn the object area corresponding to the through hole together. Moreover, the flame can only burn the object in the through hole and does not affect the object outside the burning range, reducing the impact of the flame cutting gun on the surrounding area and improving the quality of combustion.

[0008] According to some embodiments of the present invention, the size of the through hole can be adjusted.

[0009] According to some embodiments of the present invention, the adjusting baffle includes a first adjusting member, a first outer ring, and a plurality of vertically staggered dividing discs. The first outer ring is connected to the adjusting frame, and the middle part of the first outer ring is a first annular hole. The dividing discs are disposed on the first outer ring and can form dividing annular holes in the first annular hole. Two adjacent dividing discs are connected by transmission. The first adjusting member is connected by transmission to one of the dividing discs. Under the drive of the first adjusting member, the dividing discs are driven to expand outward together to enlarge the dividing annular hole, or to contract inward together to reduce the dividing annular hole.

[0010] According to some embodiments of the present invention, the adjusting baffle includes a second adjusting member, a second outer ring, and two oppositely arranged segments. The second outer ring is connected to the adjusting frame, and the middle part of the second outer ring is a second ring hole. The segments are disposed on the second outer ring, and a strip hole can be formed between the two segments in the second ring hole. The second adjusting member is tractively connected to the two segments and is used to adjust the distance between the two segments.

[0011] According to some embodiments of the present invention, the second adjusting member includes two adjusting rods and a fixing member. The two adjusting rods are respectively connected to one of the segments, and the two adjusting rods are hinged together. The segment is adjusted by adjusting the side away from the adjusting baffle through the hinge point between the two adjusting rods. The fixing member is used to fix the adjusted segment.

[0012] According to some embodiments of the present invention, the fixing member includes a snap-fit ​​bolt and a first elastic member. The segment is provided with an adjustment hole, which is located inside the second annular hole. The snap-fit ​​bolt is disposed in the adjustment hole and can be adjusted to be located in the adjustment hole to move away from or close to the opposite surface of the segment. The first elastic member is disposed on the side away from the adjustment baffle at the hinge point between the two adjustment rods, and the first elastic member is in a compressed state. The segment will open outward under the elastic force of the first elastic member and be snapped and fixed to the inner wall of the second annular hole by the snap-fit ​​bolt.

[0013] According to some embodiments of the present invention, the adjusting frame includes a plurality of telescopic rods, one end of which is connected to the muzzle and the other end of which is connected to the adjusting baffle.

[0014] According to some embodiments of the present invention, the adjusting bracket is detachably connected to the muzzle.

[0015] According to some embodiments of the present invention, the through hole is a circular hole, a linear hole, a serpentine hole, or a near-circular hole.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a flame cutting device with a first type of adjusting baffle according to an embodiment of the present invention;

[0019] Figure 2 This is a partially enlarged schematic diagram of a flame cutting device with a first type of adjusting baffle according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a flame cutting device with a second type of adjusting baffle according to an embodiment of the present invention;

[0021] Figure 4 This is a partially enlarged schematic diagram of a flame cutting device with a second type of adjusting baffle according to an embodiment of the present invention.

[0022] Figure label:

[0023] 100-Adjustment bracket;

[0024] 200 - Flame cutting gun; 210 - Muzzle;

[0025] 300 - Adjusting baffle; 310 - Through hole; 320 - First adjusting component; 330 - First outer ring; 331 - First ring hole; 340 - Dividing disc; 341 - Dividing ring hole; 350 - Second adjusting component; 351 - Adjusting rod; 352 - Fixing component; 3521 - Snap bolt; 3522 - First elastic component; 360 - Second outer ring; 361 - Second ring hole; 370 - Dividing disc; 371 - Strip hole; 372 - Adjusting hole. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0031] Reference Figure 1 and Figure 3 In some specific embodiments of the present invention, a flame cutting device with an adjustable baffle includes:

[0032] An adjustment bracket 100 is used to be mounted on the flame cutting gun 200 and can move together with the flame cutting gun 200;

[0033] An adjusting baffle 300 is mounted on an adjusting frame 100 and can approach or move away from the nozzle 210 of the flame cutting gun 200 through the adjusting frame 100. The adjusting baffle 300 is provided with a through hole 310, which corresponds to the nozzle 210 and is located in the flame ejection direction of the flame cutting gun 200.

[0034] The adjusting baffle 300 has a first position and a second position. In the first position, the through hole 310 can isolate the outer flame of the flame ejected from the muzzle 210, allowing only the inner flame of the flame ejected from the muzzle 210 to pass through. In the second position, the adjusting baffle 300 is used to be close to the object to be burned, and the through hole 310 can accommodate the inner and outer flames of the muzzle 210 and prevent the flame from scattering outward.

[0035] Specifically, when it is necessary to cut an object, the adjusting bracket 100 is used to make the adjusting baffle 300 be in the first position. The relative position of the through hole 310 of the adjusting baffle 300 and the flame cutting gun 200 or the size of the flame emitted by the flame cutting gun 200 is adjusted so that the through hole 310 can only accommodate the inner flame of the flame cutting gun 200 to pass through, while the outer flame will be blocked by the adjusting baffle 300. This achieves cutting only by the inner flame, reduces the influence of the outer flame on the object being cut, and improves cutting accuracy and cutting quality.

[0036] When an object needs to be burned, the adjusting bracket 100 positions the adjusting baffle 300 in the second position, with the adjusting baffle 300 close to the object to be burned. The through hole 310 in the adjusting baffle 300 allows the outer flame to pass through, facilitating the outer flame and inner flame to burn the object area corresponding to the through hole 310 together. Furthermore, the flame can only burn the object within the through hole 310 without affecting the object outside the burning range, reducing the impact of the flame cutting gun 200 on the surrounding area and improving the quality of combustion.

[0037] Reference Figure 1 and Figure 3 In some specific embodiments of the present invention, the size of the through hole 310 can be adjusted.

[0038] Specifically, by adjusting the size of the through hole 310, the diameter of the flame ejected from the nozzle of the flame cutting gun 200 is adjusted, thereby improving the quality of cutting or burning.

[0039] Reference Figure 2 In some specific embodiments of the present invention, the adjusting baffle 300 includes a first adjusting member 320, a first outer ring 330, and a plurality of vertically staggered dividing discs 340. The first outer ring 330 is connected to the adjusting frame 100. The middle part of the first outer ring 330 is a first ring hole 331. The dividing discs 340 are disposed on the first outer ring 330 and can form dividing ring holes 341 in the first ring hole 331. Two adjacent dividing discs 340 are connected by transmission. The first adjusting member 320 is connected by transmission to a dividing disc 340. Under the drive of the first adjusting member 320, the dividing discs 340 are driven to expand outward together to enlarge the dividing ring hole 341, or to contract inward together to shrink the dividing ring hole 341.

[0040] Specifically, the dividing disc 340 includes a large end and a small end, which are arranged in an arc shape. The large end is hinged to the first outer ring 330. The hinge point of the small end relative to the large end can extend and cover the first ring hole 331. Two adjacent dividing discs 340 are hinged together by a transmission plate. The first adjusting member 320 is an adjusting rod. The adjusting rod is set on a dividing disc 340 and can drive the small end of the dividing disc 340 to rotate around its large end. At the same time, it drives other dividing discs 340 to rotate around their respective large ends through the transmission plate, thereby expanding and shrinking the dividing ring hole 341.

[0041] The flame emitted by the flame cutting gun 200 can be adjusted through the annular hole 341, making it more convenient to use.

[0042] Reference Figure 4 In some specific embodiments of the present invention, the adjusting baffle 300 includes a second adjusting member 350, a second outer ring 360 and two oppositely arranged segments 370. The second outer ring 360 is connected to the adjusting frame 100, and the middle part of the second outer ring 360 is a second ring hole 361. The segments 370 are disposed on the second outer ring 360, and a strip hole 371 can be formed between the two segments 370 in the second ring hole 361. The second adjusting member 350 is tractively connected to the two segments 370 and is used to adjust the distance between the two segments 370.

[0043] Specifically, the two opposing segments 370 can form a strip-shaped hole 371, which can adjust the flame ejected by the flame cutting gun 200 into a strip shape, making the flame cutting gun 200 more convenient to use when working on a straight cutting area or a combustion area.

[0044] Reference Figure 4 In some specific embodiments of the present invention, the second adjusting member 350 includes two adjusting rods 351 and a fixing member 352. The two adjusting rods 351 are respectively connected to a segment 370. The two adjusting rods 351 are hinged together. The segment 370 is adjusted by the hinge point between the two adjusting rods 351 on the side away from the adjusting baffle 300. The fixing member 352 is used to fix the adjusted segment 370.

[0045] Specifically, by adjusting the two adjusting rods 351 to rotate relative to each other around the hinge point, the two segments 370 can be opened or closed. After opening or closing, the position of the segments 370 is fixed by the fixing member 352 to adjust the size of the strip hole 371, which can accommodate more types of materials to be cut or to be burned.

[0046] Reference Figure 4 In some specific embodiments of the present invention, the fixing member 352 includes a snap-fit ​​bolt 3521 and a first elastic member 3522. The segment 370 is provided with an adjustment hole 372, which is located inside the second annular hole 361. The snap-fit ​​bolt 3521 is disposed in the adjustment hole 372 and can be adjusted to be located in the adjustment hole 372 to move away from or close to the opposite surface of the segment 370. The first elastic member 3522 is disposed on the side away from the adjustment baffle 300 at the hinge point between the two adjusting rods 351. The first elastic member 3522 is in a compressed state. The segment 370 will open outward under the elastic force of the first elastic member 3522 and be snapped and fixed to the inner wall of the second annular hole 361 by the snap-fit ​​bolt 3521.

[0047] Specifically, by adjusting the position of the snap-fit ​​bolt 3521, the distance between the two segments 370 is adjusted. When the snap-fit ​​bolt 3521 is set away from the opposite surface of the segments 370, under the elastic action of the first elastic element 3522, the snap-fit ​​bolt 3521 is driven to snap and fix with the inner wall of the second annular hole 361. The distance between the snap-fit ​​bolt 3521 and the segments 370 is greater, resulting in a closer distance between the two segments 370, making the strip hole 371 smaller. Similarly, when the snap-fit ​​bolt 3521 is set close to the opposite surface of the segments 370, the distance between the snap-fit ​​bolt 3521 and the segments 370 is closer, resulting in a greater distance between the two segments 370, making the strip hole 371 larger, thus achieving the adjustment of the size of the strip hole 371.

[0048] In addition, a second elastic element is provided on the opposite surface of the two segments 370. The second elastic element is also in a compressed state, which makes the elastic force on the segments 370 greater and makes it easier to clamp the bolt 3521 to the inner wall of the second annular hole 361. During use, the size of the strip hole 371 is not easy to change, and its shape is more stable.

[0049] Reference Figure 2 and Figure 4 In some specific embodiments of the present invention, the adjustment frame 100 includes a plurality of telescopic rods, one end of which is connected to the muzzle 210 and the other end is connected to the adjustment baffle 300.

[0050] Specifically, the distance between the baffle 300 and the muzzle 210 of the flame cutting gun 200 can be adjusted by extending and retracting the telescopic rod, making it more convenient to use when cutting or burning objects.

[0051] Reference Figure 2 and Figure 4 In some specific embodiments of the present invention, the adjustment bracket 100 and the muzzle 210 are detachably connected.

[0052] Specifically, when burning waste, the adjusting baffle 300 can be removed, and the waste can be burned directly by the flame cutting gun 200, which is more convenient to use; and the adjusting baffle 300 can be installed only when needed, which has a wider range of applications and is more convenient to use.

[0053] The adjusting frame 100 has a disassembly sleeve on the side away from the adjusting baffle. The sleeve hole inside the disassembly sleeve is preferably located on the same axis as the through hole 310 of the adjusting baffle 300. The disassembly sleeve can be directly fitted onto the muzzle of the flame cutting gun to achieve detachable adjacent operation.

[0054] Reference Figure 1 and Figure 3 In some specific embodiments of the present invention, the through hole 310 is a circular hole, a linear hole, a serpentine hole, or a near-circular hole.

[0055] Among them, "quasi-circular" refers to an ellipse or a near-circular shape.

[0056] Specifically, circular or near-circular through-holes 310 can more easily isolate the outer flame, while linear or serpentine through-holes 310 can burn in a straight line during combustion. When burning in a strip area, their effective combustion range is wider than that of circular holes, and their combustion efficiency is higher.

[0057] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A flame cutting device with an adjustable baffle, characterized in that, include: An adjustment bracket (100) is used to be mounted on the flame cutting gun (200) and can move together with the flame cutting gun (200); An adjustment baffle (300) is provided on the adjustment frame (100) and can approach or move away from the muzzle (210) of the flame cutting gun (200) through the adjustment frame (100). The adjustment baffle (300) is provided with a through hole (310) and the through hole (310) can correspond to the muzzle (210). The size of the through hole (310) can be adjusted; The adjusting baffle (300) includes a first adjusting member (320), a first outer ring (330), and a plurality of vertically staggered dividing discs (340). The first outer ring (330) is connected to the adjusting frame (100). The middle part of the first outer ring (330) is a first annular hole (331). The dividing discs (340) are disposed on the first outer ring (330) and can form dividing annular holes (341) in the first annular hole (331). Two adjacent dividing discs (340) are connected by transmission. The first adjusting member (320) is connected by transmission to one of the dividing discs (340). Under the drive of the first adjusting member (320), the dividing discs (340) are driven to expand outward together to enlarge the dividing annular hole (341), or to contract inward together to shrink the dividing annular hole (341).

2. The flame cutting device with an adjustable baffle according to claim 1, characterized in that: The adjusting baffle (300) includes a second adjusting member (350), a second outer ring (360), and two oppositely arranged segments (370). The second outer ring (360) is connected to the adjusting frame (100). The middle part of the second outer ring (360) is a second ring hole (361). The segments (370) are disposed on the second outer ring (360), and a strip hole (371) can be formed between the two segments (370) in the second ring hole (361). The second adjusting member (350) is tractively connected to the two segments (370) and is used to adjust the distance between the two segments (370).

3. The flame cutting device with an adjustable baffle according to claim 2, characterized in that: The second adjusting member (350) includes two adjusting rods (351) and a fixing member (352). The two adjusting rods (351) are respectively connected to a segment (370). The two adjusting rods (351) are hinged together. The segment (370) is adjusted by the hinge point between the two adjusting rods (351) away from the adjusting baffle (300). The fixing member (352) is used to fix the adjusted segment (370).

4. The flame cutting device with an adjustable baffle according to claim 3, characterized in that: The fixing member (352) includes a snap-fit ​​bolt (3521) and a first elastic member (3522). The segment (370) is provided with an adjustment hole (372). The adjustment hole (372) is located inside the second annular hole (361). The snap-fit ​​bolt (3521) is disposed in the adjustment hole (372) and can be adjusted to be located in the adjustment hole (372) to move away from or close to the opposite surface of the segment (370). The first elastic member (3522) is disposed on the side away from the adjustment baffle (300) at the hinge point between the two adjustment rods (351). The first elastic member (3522) is in a compressed state. The segment (370) will open outward under the elastic force of the first elastic member (3522) and be snapped and fixed to the inner wall of the second annular hole (361) by the snap-fit ​​bolt (3521).

5. The flame cutting apparatus with an adjustable baffle according to any one of claims 1 to 4, characterized in that: The adjustment frame (100) includes multiple telescopic rods, one end of which is connected to the muzzle (210) and the other end of which is connected to the adjustment baffle (300).

6. The flame cutting apparatus with an adjustable baffle according to any one of claims 1 to 4, characterized in that: The adjustment frame (100) is detachably connected to the muzzle (210).

7. The flame cutting apparatus with an adjustable baffle according to any one of claims 1 to 4, characterized in that: The through hole (310) is a circular hole, a linear hole, a serpentine hole, or a near-circular hole.

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