A flame cutting machine capable of preventing high temperature burns

Abstract

The present invention discloses a flame cutting machine that prevents high temperature burns, which belongs to the technical field of flame cutting machines, and includes a main pipe, a protective component and a driving component. A handle rod is installed at the tail end of the main pipe, and the two ends of the auxiliary pipe are connected to the outside of the main pipe. The auxiliary pipe is connected to the main pipe only at its tail end, and the main pipe and the auxiliary pipe are respectively provided with a second adjustment knob and a first adjustment knob. The tail end of the handle rod is penetrated by the main gas pipe and the auxiliary gas pipe, and the main gas pipe and the auxiliary gas pipe are respectively connected to the main pipe and the auxiliary pipe. A shielding cover is provided on the outer movable sleeve of the head end of the main pipe, and a protective component installed on the head end of the main pipe is provided below the shielding cover. The invention not only provides a protective component to prevent sparks from flying and scalding the staff, but also facilitates the staff to observe the cutting position, thereby facilitating the accuracy of the cutting position. In addition, the protective component is driven by the power supply connected to the air pump on the flame cutting machine, avoiding the need for connecting another power supply.

Description

Technical Field

[0001] The invention relates to the technical field of flame cutting, in particular to a flame cutting machine capable of preventing high temperature burns. Background Art

[0002] Before the advent of flame cutting knives, metal cutting mainly relied on mechanical cutting methods, such as sawing and shearing. These methods have some limitations, such as: for thicker metal materials, mechanical cutting is slow, inefficient, and the tool wears seriously, requiring frequent tool replacement, which increases costs; for metal workpieces with complex shapes, it is difficult to achieve precise cutting by mechanical cutting, which is prone to errors and affects product quality; some high-strength and high-hardness metal materials, such as alloy steel and stainless steel, are difficult to cut mechanically, or even impossible to cut;

[0003] With the development of industry, the requirements for metal cutting technology are getting higher and higher, and flame cutting technology came into being;

[0004] The existing flame cutting machine still has the following technical problems when in use, such as:

[0005] 1. Existing flame cutting machines are generally not equipped with protective mechanisms when in use. When cutting carbon steel, flame cutting machines are prone to produce sparks, which scatter and splash onto the skin of workers, thus easily causing burns to the workers' skin.

[0006] 2. In order to avoid sparks from scalding workers, existing flame cutting machines may be equipped with fully enclosed protective covers, which prevent workers from seeing the cutting flames, making it difficult to ensure the accuracy of the cutting position;

[0007] Therefore, a flame cutting machine that is resistant to high temperature burns is needed to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to provide a flame cutting machine that is resistant to high temperature burns, so as to solve the problem mentioned in the above background technology that the existing flame cutting machines are generally not provided with a protective mechanism, which may easily cause sparks to burn the workers, and even if a protective mechanism is provided, it is generally a fully enclosed protective cover, which makes it inconvenient for the workers to observe the cutting position.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A flame cutting machine for preventing high temperature burns comprises a main pipe, a protection assembly and a driving assembly, wherein a handle rod is installed at the tail end of the main pipe, and two ends of a sub-pipe are connected to the outside of the main pipe, and only the tail end of the sub-pipe is connected to the main pipe, and a second adjusting knob and a first adjusting knob are respectively arranged on the main pipe and the sub-pipe, the tail end of the handle rod is penetrated by a main gas pipe and a sub-gas pipe, and the main gas pipe and the sub-gas pipe are connected to the main pipe and the sub-pipe respectively, a shielding cover is provided on the outer side of the head end of the main pipe, and a protection assembly installed on the head end of the main pipe is arranged below the shielding cover, the protection assembly is driven by the driving assembly, and the driving assembly is arranged at the head end of the main pipe in the shielding cover.

[0011] Further, the protection assembly includes a protection plate, a magnet sheet, a second electric slip ring, a connecting plate, a bolt sleeve and a cone ring, the bolt sleeve is threadedly connected to the head end of the main pipe, and the outer bearing of the bolt sleeve is connected to the cone ring, the upper end of the cone ring is contacted and connected to the lower side of the protection plate, and the magnet sheet is fixedly installed on the upper side of the protection plate, the upper end of the protection plate is axially connected to the lower end of the connecting plate, and the upper end of the connecting plate is fixedly connected to the lower surface of the second electric slip ring, the second electric slip ring bearing is connected to the outer side of the head end of the main pipe, and the position of the second electric slip ring is higher than that of the cone ring.

[0012] Furthermore, the main pipe has a structure in the shape of a horizontal "L" and a nozzle is provided at the head end of the main pipe, and the nozzle is used to spray flames.

[0013] Furthermore, the cone ring is in the shape of an inverted truncated cone, and the angle of the protective plate is limited by the upper end of the cone ring.

[0014] Furthermore, two protective plates and two connecting plates are provided, and the two protective plates and the two connecting plates are symmetrically arranged about the axis of the main pipe head end. By providing two protective plates and utilizing the visual persistence effect, the protective plates not only play a protective role when rotating, but also make the flame ejected from the nozzle of the main pipe head end visible, thereby facilitating cutting.

[0015] Furthermore, the protective plate is made of nickel or cobalt.

[0016] Further, the driving assembly includes a limit ring, a fixing sleeve, a first conductor, a support plate, a magnetic block, a first electric slip ring and a second conductor. The limit ring is arranged on the outside of the main pipe and the auxiliary pipe, and the two limit rings are movably sleeved on the outside of the corresponding main pipe and the auxiliary pipe respectively. The fixing sleeve is fixedly connected to the main pipe, and the position of the fixing sleeve is higher than the position of the shielding cover. There are two support plates, and the two support plates are symmetrically arranged at the head end of the main pipe. A magnetic block is installed at the lower end of each support plate. The first electric slip ring is also bearing-connected to the head end of the main pipe, and the first electric slip ring and the second electric slip ring are electrically connected through two sections of the second conductor. The height of the first electric slip ring is greater than that of the second electric slip ring, and the first electric slip ring is connected to the first electric slip ring. The first conductor movably passes through the corresponding support plate, the shielding cover, the fixing sleeve, the limit ring and the handle bar in sequence.

[0017] Furthermore, the magnetic poles of the two magnetic blocks on opposite sides are opposite, and the position height of the two magnetic blocks is the same as the height of the two second sections of the conductive wire.

[0018] Furthermore, the wire one is composed of two wires, and the other end of the wire one is electrically connected in parallel with the air pump of the flame cutting machine, and the wire one, two sections of wire two, the first electric slip ring, the second electric slip ring and the power supply of the air pump form a loop.

[0019] Furthermore, the shielding cover is in a truncated cone shape, and the lowest height of the lower end thereof is smaller than the height of the lower end of the connecting plate.

[0020] Compared with the prior art, the invention has the following beneficial effects: the flame cutting machine for preventing high temperature burns is not only provided with a protective component, which can prevent sparks from flying and scalding the workers, but also can facilitate the workers to observe the cutting position, thereby facilitating the accurate cutting position. In addition, the protective component is driven by the power supply connected to the air pump on the flame cutting machine, avoiding the need to connect another power supply:

[0021] 1. The circuit formed by the wire 1, the 2nd wire, the first electric slip ring, the second electric slip ring and the power supply of the air pump can make the flame cutting machine use the Ampere force to drive the connecting plate and the protective plate connected to it to rotate during use, so as to form a protective ring. When the flame cutting machine cuts carbon steel, the sparks are blocked by the protective ring formed by the rotating protective plate, thereby avoiding the contact between the sparks and the body of the staff, so as to avoid the staff being burned. In addition, the material of the protective plate and the magnet sheet fixedly connected to the protective plate can make the protective plate absorb the flying sparks, and also avoid the high temperature of the sparks causing the magnet sheet to be demagnetized;

[0022] 2. When the protective plate rotates, the visual persistence effect allows the staff to still see the cutting position, so that the protective plate can rotate to play a protective role while avoiding the cutting position from being blocked, which is conducive to observing the cutting situation, thereby ensuring the accuracy of the cutting position. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A;

[0026] Figure 4 It is a schematic diagram of the connection structure between the limit ring and the wire of the present invention;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of point B in the middle;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0030] In the figure: 1. main pipe; 2. auxiliary pipe; 3. limit ring; 4. first adjusting knob; 5. second adjusting knob; 6. fixing sleeve; 7. shielding cover; 8. protective plate; 9. magnet sheet; 10. handle bar; 11. main gas pipe; 12. auxiliary gas pipe; 13. wire one; 14. support plate; 15. magnetic block; 16. first electric slip ring; 17. wire two; 18. second electric slip ring; 19. connecting plate; 20. bolt sleeve; 21. cone ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7 , the present invention provides the following technical solutions: Example

[0033] In order to solve the problem that flame cutting knives are generally not provided with a protective mechanism in the past, the following technical solution is provided. Specifically, a flame cutting machine that prevents high-temperature burns includes a main pipe 1, a protective component and a driving component. A handle rod 10 is installed at the tail end of the main pipe 1, and the outer side of the main pipe 1 is connected to the two ends of the auxiliary pipe 2, and the auxiliary pipe 2 is connected to the main pipe 1 at its tail end only, and the main pipe 1 and the auxiliary pipe 2 are respectively provided with a second adjusting knob 5 and a first adjusting knob 4, the tail end of the handle rod 10 is penetrated by a main gas pipe 11 and an auxiliary gas pipe 12, and the main gas pipe 11 and the auxiliary gas pipe 12 are respectively connected to the main pipe 1 and the auxiliary pipe 2, a shielding cover 7 is movably sleeved on the outer side of the head end of the main pipe 1, and a protective component installed at the head end of the main pipe 1 is provided below the shielding cover 7.

[0034] The protection assembly includes a protection plate 8, a magnet sheet 9, a second electric slip ring 18, a connecting plate 19, a bolt sleeve 20 and a cone ring 21. The bolt sleeve 20 is threadedly connected to the head end of the main pipe 1, and the outer bearing of the bolt sleeve 20 is connected to the cone ring 21. The upper end of the cone ring 21 is in contact with the lower side of the protection plate 8, and the upper side of the protection plate 8 is fixedly installed with a magnet sheet 9. The upper end of the protection plate 8 is axially connected to the lower end of the connecting plate 19, and the upper end of the connecting plate 19 is fixedly connected to the lower surface of the second electric slip ring 18. The second electric slip ring 18 is connected to the outer side of the head end of the main pipe 1 by a bearing, and the position of the second electric slip ring 18 is higher than that of the cone ring 21. The rotation of the second electric slip ring 18 drives the connecting plate 19 to rotate, and then drives the protection plate 8 to rotate. During the rotation of the protection plate 8, a protection ring is formed to prevent sparks formed by cutting carbon steel from splashing and contacting the body of the staff, thereby avoiding burns to the staff. In addition, the magnet sheet 9 can make the protection plate 8 magnetic, so that it can absorb Attached sparks serve to gather carbon steel debris. The structural shape of the main pipe 1 is a horizontal "L" shape, and a nozzle is provided at the head end of the main pipe 1. The nozzle is used to spray flames. The cone ring 21 is an inverted truncated cone. The angle of the protective plate 8 is limited by the upper end of the cone ring 21. The position of the cone ring 21 can be adjusted by rotating the bolt sleeve 20, thereby limiting the angle of the protective plate 8 to prevent the lower end from being too low, which causes obstacles when cutting special-shaped carbon steel. There are two protective plates 8 and two connecting plates 19, and the two protective plates 8 and the two connecting plates 19 are symmetrically arranged about the axis of the head end of the main pipe 1. By setting two protective plates 8 and utilizing the visual persistence effect, the protective plate 8 not only plays a protective role when rotating, but also makes the flame sprayed from the nozzle at the head end of the main pipe 1 visible, thereby facilitating cutting. The protective plate 8 is nickel or cobalt, which reduces the thermal conductivity of the protective plate 8 and prevents the protective plate 8 from transferring high heat to the magnet sheet 9, causing the magnet sheet 9 to demagnetize. Example

[0035] In order to solve the problem that the protection component in the first embodiment requires a separate external power supply, specifically, the protection component is driven by a driving component, and the driving component is arranged at the head end of the main pipe 1 in the shielding cover 7.

[0036] The driving assembly includes a limit ring 3, a fixing sleeve 6, a wire 13, a support plate 14, a magnetic block 15, a first electric slip ring 16 and a wire 2 17. The limit ring 3 is arranged on the outside of the main pipe 1 and the auxiliary pipe 2, and the two limit rings 3 are respectively movably sleeved on the outside of the corresponding main pipe 1 and the auxiliary pipe 2. The fixing sleeve 6 is fixedly connected to the main pipe 1, and the position of the fixing sleeve 6 is higher than the position of the shielding cover 7. There are two support plates 14, and the two support plates 14 are symmetrically arranged at the head end of the main pipe 1, each A magnetic block 15 is installed at the lower end of each support plate 14, and a first electric slip ring 16 is also connected to the head end of the main pipe 1, and the first electric slip ring 16 and the second electric slip ring 18 are electrically connected through two sections of wire 2 17. The height of the first electric slip ring 16 is greater than the height of the second electric slip ring 18, and the first electric slip ring 16 is connected with a wire 13, which sequentially moves through the corresponding support plate 14, the shielding cover 7, the fixing sleeve 6, the limit ring 3 and the handle bar 10. The two magnetic blocks 1 5, the magnetic poles on the opposite sides are opposite, and the position height of the two magnetic blocks 15 is the same as the height of the two sections of the second wire 17. The first wire 13 is composed of two wires, and the other end of the first wire 13 is electrically connected in parallel with the gas pump of the flame cutting machine, and the first wire 13, the two sections of the second wire 17, the first electric slip ring 16, the second electric slip ring 18 and the power supply of the gas pump constitute a loop. During the operation of the flame cutting machine, the power supply connected to the gas pump causes current to flow through the first electric slip ring 16 and the second wire 17, and then the first electric slip ring 16, the second wire 17 and the second electric slip ring 18 are rotated through the Ampere force and the two magnetic blocks 15, and then the protective plate 8 on the protective component is driven to rotate. By sharing a power supply with the gas pump, the protective component can avoid being connected to an external power supply separately, and it is avoided to set other components such as a motor on the main pipe 1, so that the protective component is operated only during the cutting of carbon steel, thereby reducing energy consumption. The shielding cover 7 is truncated cone-shaped, and the lowest height of its lower end is less than the height of the lower end of the connecting plate 19.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame cutting machine for preventing high temperature burns, comprising a main pipe (1), a protection component and a drive component, characterized in that: A handle bar (10) is installed at the rear end of the main pipe (1), and the outer side of the main pipe (1) is connected to the two ends of the auxiliary pipe (2). Only the rear end of the auxiliary pipe (2) is connected to the main pipe (1), and the main pipe (1) and the auxiliary pipe (2) are respectively provided with a second adjustment knob (5) and a first adjustment knob (4). The rear end of the handle bar (10) is penetrated by the main gas pipe (11) and the auxiliary gas pipe (12), and the main gas pipe (11) and the auxiliary gas pipe (12) are respectively connected to the main pipe (1) and the auxiliary pipe (2). A shielding cover (7) is provided on the outer side of the head end of the main pipe (1), and a protective component installed at the head end of the main pipe (1) is provided below the shielding cover (7). The protective component comprises a protective plate (8), a magnet sheet (9), a second An electric slip ring (18), a connecting plate (19), a bolt sleeve (20) and a cone ring (21), wherein the bolt sleeve (20) is threadedly connected to the head end of the main pipe (1), and the outer bearing of the bolt sleeve (20) is connected to the cone ring (21), the upper end of the cone ring (21) is contact-connected to the lower side of the protective plate (8), and a magnet sheet (9) is fixedly mounted on the upper side of the protective plate (8), the upper end of the protective plate (8) is axially connected to the lower end of the connecting plate (19), and the upper end of the connecting plate (19) is fixedly connected to the lower surface of the second electric slip ring (18), and two protective plates (8) and two connecting plates (19) are each provided, and the two protective plates (8) and the two connecting plates (19) are symmetrically arranged about the axis of the head end of the main pipe (1), and by arranging the two protective plates (8), utilizing the visual persistence effect, so that when the protective plate (8) rotates, it not only plays a protective role, but also makes the flame ejected from the nozzle at the head end of the main pipe (1) visible, thereby facilitating cutting, the second electric slip ring (18) is connected to the outer side of the head end of the main pipe (1) by a bearing, and the position of the second electric slip ring (18) is higher than the position of the cone ring (21), the protective component is driven by a driving component, and the driving component is arranged at the head end of the main pipe (1) in the shielding cover (7), the driving component comprises a limiting ring (3), a fixing sleeve (6), a first conductor (13), a support plate (14), a magnetic block (15), a first electric slip ring (16) and a second conductor (17), the limiting ring (3) is arranged on the outer sides of the main pipe (1) and the auxiliary pipe (2), and the second electric slip ring (18) is connected to the outer side of the main pipe (1) and the auxiliary pipe (2), and the second electric slip ring (18) is connected to the outer side of the main pipe (1) and the auxiliary pipe (2), and the second electric slip ring (18) is connected to the outer side of the auxiliary ... The limiting rings (3) are respectively movably sleeved on the outer sides of the corresponding main pipe (1) and auxiliary pipe (2); the fixing sleeve (6) is fixedly connected to the main pipe (1), and the position of the fixing sleeve (6) is higher than the position of the shielding cover (7); two support plates (14) are provided, and the two support plates (14) are symmetrically arranged at the head end of the main pipe (1); a magnetic block (15) is installed at the lower end of each support plate (14); the first electric slip ring (16) is also bearing-connected to the head end of the main pipe (1); the first electric slip ring (16) and the second electric slip ring (18) are electrically connected through two sections of wire (17); the magnetic poles of the two magnetic blocks (15) on opposite sides are opposite, and the position height of the two magnetic blocks (15) is the same as the height of the two sections of wire (17);The height of the first electric slip ring (16) is greater than the height of the second electric slip ring (18), and the first electric slip ring (16) is connected with a wire 1 (13), the wire 1 (13) is composed of two wires, and the other end of the wire 1 (13) is electrically connected in parallel with the air pump of the flame cutting machine, and the wire 1 (13), the two sections of the second wire (17), the first electric slip ring (16), the second electric slip ring (18) and the power supply of the air pump form a loop, and the wire 1 (13) is movable through the corresponding support plate (14), the shielding cover (7), the fixing sleeve (6), the limit ring (3) and the handle rod (10) in sequence.

2. A flame cutting machine that prevents high temperature burns according to claim 1, characterized in that: The main pipe (1) has a structural shape of a horizontal "L" shape, and a nozzle is provided at the head end of the main pipe (1), and the nozzle is used to spray flames.

3. A flame cutting machine for preventing high temperature burns according to claim 2, characterized in that: The cone ring (21) is in the shape of an inverted truncated cone, and the angle of the protective plate (8) is limited by the upper end of the cone ring (21).

4. A flame cutting machine for preventing high temperature burns according to claim 3, characterized in that: The protective plate (8) is made of nickel or cobalt.

5. The flame cutting machine for preventing high temperature burns according to claim 4, characterized in that: The shielding cover (7) is in the shape of a truncated cone, and the lowest height of its lower end is less than the height of the lower end of the connecting plate (19).

Images