A high-efficiency cutting device

Abstract

This invention discloses a high-efficiency cutting device, belonging to the technical field of cutting equipment. The device includes a material conveying mechanism, a plate limiting mechanism, a lateral movement mechanism, and a limit self-stop mechanism. The material conveying mechanism consists of a base, a mounting groove, and conveying rollers, used to drive stable conveying of the plate. The plate limiting mechanism adjusts the side limiting rollers via a threaded rod, a moving block, a connecting rod, and a crossbar, achieving automatic centering positioning of plates of different widths. The lateral movement mechanism consists of a support base, a fixed rod, and a main shaft. The main shaft surface is provided with a spiral groove. The limit self-stop mechanism engages with the main shaft under the action of a sliding plate, a fixing bolt, and a spring, realizing lateral movement control of the plasma cutting gun. When the cutting gun moves to the edge of the plate, the squeezing sliding plate cooperates with the stop block to disengage the fixing bolt, and the cutting gun automatically stops, avoiding idle travel and overshoot. The plasma power supply box is connected to the cutting gun, and the slag box is used to collect slag.

Description

Technical Field

[0001] This invention belongs to the field of cutting equipment technology, and specifically relates to a high-efficiency cutting device. Background Technology

[0002] In the field of metal sheet cutting, commonly used cutting methods include mechanical cutting, laser cutting, and plasma cutting. Among them, plasma cutting is widely used due to its high cutting speed and wide range of applicable materials. However, existing plasma cutting equipment still has certain limitations when cutting large-format sheets.

[0003] For example, when cutting plates of different widths, it is usually necessary to manually adjust the limit position repeatedly to ensure that the plate remains centered in the equipment during transport. This manual adjustment method is not only time-consuming and labor-intensive, but also prone to causing the plate to shift due to improper operation, thus affecting the cutting accuracy. In addition, the existing equipment often has a fixed travel distance when the plasma cutting gun moves laterally for cutting, and cannot automatically adjust according to the width of different plates. This can easily lead to situations where the lateral travel distance of the cutting gun is too large or too small: when the travel distance is too large, it will cause unnecessary idle travel, reducing cutting efficiency; when the travel distance is too small, the plate may not be completely cut, affecting the processing quality.

[0004] Meanwhile, most existing self-stop control mechanisms rely on manual operation or fixed stroke designs, failing to adapt automatically to changes in sheet width. This causes the cutting torch to continue moving after cutting, increasing energy consumption and potentially causing additional wear on equipment components. Furthermore, in actual production, the components used for limiting and adjusting are often structurally simple and lack flexibility. Some components are inconvenient to replace or maintain after prolonged use, reducing the overall lifespan of the equipment.

[0005] Therefore, existing cutting devices have shortcomings in terms of automatic plate limiting, adaptive adjustment of cutting gun traverse stroke, and automatic stop control. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-efficiency cutting device that can automatically adjust the stroke, improve cutting efficiency, and take into account convenient maintenance.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A high-efficiency cutting device includes a material conveying mechanism, the material conveying mechanism including a base, an installation groove being formed on the upper surface of the base, and a conveying roller being uniformly and rotatably mounted above the surface of the installation groove.

[0009] A plate limiting mechanism is installed inside the mounting groove, which is used to limit the movement of the conveyed plate on both sides.

[0010] A transverse moving mechanism spans the upper surface of the base. The transverse moving mechanism includes support seats and adjusting blocks fixed on both sides of the base surface. Two fixed rods are arranged between the two support seats, and a limit self-stop mechanism is slidably installed on the surface of the two fixed rods.

[0011] The adjusting block slides on the surfaces of the two fixed rods. The two adjusting blocks are used to limit the two sides of the limit self-stop mechanism. The limit self-stop mechanism includes an upper docking plate and a lower docking plate placed on the surfaces of the fixed rods. A mounting plate is provided with the bottom of the lower docking plate facing downwards. A plasma cutting gun is fixed on one side of the mounting plate.

[0012] Furthermore, each end of the lower surface of the mounting groove is provided with a vertical plate, and the plate limiting mechanism includes a threaded rod rotatably installed between the two vertical plates, the threaded rod being perpendicular to the axis of the conveying roller;

[0013] The plate limiting mechanism also includes a crossbar that slides symmetrically on the surface of the mounting groove. The lower surface of the mounting groove is provided with a groove for limiting the end of the crossbar. A side limiting roller is uniformly and rotatably installed on the upper surface of the crossbar. The side limiting roller is placed in the gap of the conveying roller and is higher than the conveying roller.

[0014] Furthermore, the threaded rod surface is symmetrically screwed with a movable block, and a connecting rod is hinged to both sides of the movable block. The ends of the two connecting rods on the same side that are away from the movable block are hinged to the crossbar.

[0015] A connecting rod is fixedly installed at the bottom of the adjusting block. The connecting rod passes through the space between two adjacent conveying rollers. The bottoms of the two connecting rods are respectively installed on the crossbar by bolts. The connecting rods are offset outward relative to the crossbar.

[0016] Furthermore, two support rods are fixed to the horizontal line below the inner side of the mounting groove. A slag box is slidably installed on the upper surface of the two support rods. The slag box is placed directly below the plasma cutting gun. The slag box is hollow inside with an open top and is used to collect slag during cutting.

[0017] Furthermore, a plasma power supply box is fixedly installed on the outside of one of the support bases, and the plasma power supply box is connected to the plasma cutting gun via a flexible hose.

[0018] Furthermore, a main shaft is rotatably mounted between the two support seats, the main shaft is placed parallel between the two fixed rods, a drive motor is fixed to the outside of the support seats, and the end of the main shaft is mounted on the output end of the drive motor;

[0019] The spindle surface is provided with a spiral groove.

[0020] Furthermore, the upper and lower connecting plates are respectively wrapped around the upper and lower parts of the fixing rod and the main shaft. The upper connecting plate has a mounting box at the top center, and a sliding groove is opened at the bottom inside the mounting box. A sliding plate is vertically slidably installed inside the sliding groove.

[0021] The bottom of the slide plate is fixedly provided with two second fixing bolts, both of which are located inside the spiral groove, and the distance between the two second fixing bolts is equal to the pitch of the spiral groove.

[0022] Furthermore, a mounting hole is vertically opened at the center of the upper surface of the mounting box, a spring is placed inside the mounting hole, a nut is screwed onto the top of the mounting hole, the spring is placed between the sliding plate and the nut, and the spring applies a downward thrust to the sliding plate.

[0023] Furthermore, a first fixing bolt is screwed onto one side of the slide plate, and the extrusion slide plate slides laterally through the mounting box. Both ends of the extrusion slide plate extend beyond the side of the mounting box, and a V-shaped track groove is formed on the surface of the extrusion slide plate. The first fixing bolt is placed inside the V-shaped track groove.

[0024] The mounting box has an observation window on one side, which is used to observe and install the first fixing bolt.

[0025] Both of the two adjusting blocks are provided with a stop block on the side where they are close to each other, and the extrusion slide is limited by the stop blocks on both sides.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] This invention addresses the shortcomings of existing technologies by creating mounting grooves on the base surface and evenly installing conveyor rollers above these grooves. This ensures stable movement of the sheet material during transport, avoiding the swaying and offset issues caused by manual pushing. Furthermore, by incorporating a sheet material limiting mechanism inside the mounting groove, and through the coordination of a threaded rod, a moving block, a connecting rod, and a crossbar, the side limiting rollers are adjusted to automatically center sheets of different widths. This solves the problems of existing devices requiring repeated manual adjustment of the limiting mechanism and the tendency for sheet material to shift, leading to uneven cutting.

[0028] This invention solves the problems of fixed lateral travel, excessive idle travel, or incomplete cutting in the prior art by setting support seats on both sides of the base and installing a fixed rod and main shaft between the support seats. The limit self-stop mechanism achieves stable sliding between the fixed rod and the main shaft, ensuring that the plasma cutting torch can automatically adjust its lateral travel according to the width of the material. By setting a spiral groove on the surface of the main shaft and utilizing the cooperation of the second fixing bolt and the sliding plate, the limit self-stop mechanism can maintain synchronization with the main shaft during lateral movement, achieving precise control of the cutting path and improving cutting efficiency and processing quality.

[0029] This invention, by incorporating a spring, sliding plate, and first fixing bolt structure inside the mounting box, enables the limit self-stop mechanism to automatically disengage under the action of a stop block when it reaches the edge of the plate during lateral movement. This ensures timely stopping of the cutting torch, solving the problems of increased energy consumption, equipment wear, and reduced cutting accuracy caused by inertial overshoot in traditional devices. Furthermore, the installation of an observation window and mounting holes on the mounting box facilitates not only the installation and maintenance of the first fixing bolt and internal components but also the replacement of the spring, overcoming the problems of complex structural replacement and difficult maintenance in existing technologies.

[0030] This invention, by incorporating a slag collection box beneath the plasma cutting torch, effectively collects the high-temperature slag generated during the cutting process, preventing slag from directly falling into the base and causing equipment damage. It also facilitates centralized cleaning, solving the problems of slag splatter and difficult equipment maintenance in the prior art. The flexible hose connection between the plasma power supply box and the cutting torch ensures stable energy and gas transmission, reducing energy consumption and thus improving the overall operational stability of the equipment. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the formal structure of the present invention;

[0032] Figure 2 This is a top view of the structure of the present invention;

[0033] Figure 3 This is a three-dimensional structural diagram of the conveying and plate limiting mechanism of the present invention;

[0034] Figure 4 This is a top view of the conveying and plate limiting mechanism of the present invention;

[0035] Figure 5 This is a three-dimensional structural diagram of the lateral movement and limit self-stopping mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the adjustment block mounting structure of the present invention;

[0037] Figure 7This is a three-dimensional structural diagram of the limit self-stop mechanism and the cutting gun mounting structure of the present invention.

[0038] Figure 8 This is a three-dimensional structural diagram of the observation window of the present invention;

[0039] Figure 9 For the present invention Figure 7 A schematic diagram of the longitudinal cross-sectional structure;

[0040] Figure 10 This is a schematic diagram of the three-dimensional structure of the extrusion slide plate of the present invention.

[0041] The attached diagram lists the components represented by each number as follows:

[0042] 1. Material conveying mechanism; 11. Base; 12. Mounting groove; 13. Support rod; 14. Vertical plate; 15. Conveying roller;

[0043] 2. Sheet metal limiting mechanism; 21. Threaded rod; 22. Moving block; 23. Connecting rod; 24. Crossbar; 25. Side limiting roller;

[0044] 3. Lateral movement mechanism; 31. Support base; 32. Fixed rod; 33. Main shaft; 331. Spiral groove; 34. Drive motor; 35. Adjusting block; 351. Stop block; 36. Connecting rod;

[0045] 4. Limit self-stop mechanism; 41. Lower docking plate; 42. Mounting plate; 43. Upper docking plate; 44. Mounting box; 441. Observation window; 442. Slide groove; 443. Mounting hole; 45. Slide plate; 451. First fixing bolt; 46. Second fixing bolt; 47. Spring; 48. Compression slide plate; 481. V-shaped track groove; 49. Nut;

[0046] 5. Slag box; 6. Plasma power supply box; 7. Plasma cutting torch. Detailed Implementation

[0047] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0048] Example 1:

[0049] See Figure 1-10A high-efficiency cutting device includes a material conveying mechanism 1, which includes a base 11. An installation groove 12 is formed on the upper surface of the base 11, and a conveying roller 15 is uniformly rotatably mounted above the surface of the installation groove 12. The base 11 drives the sheet material to move laterally through the rotation of the conveying roller 15, avoiding cutting accuracy deviations caused by manual pushing. A sheet material limiting mechanism 2 is installed inside the installation groove 12, which limits the two sides of the conveyed sheet material, ensuring that sheets of different widths remain centered during conveying, solving the problem of uneven cutting caused by sheet material misalignment in the prior art. A lateral moving mechanism 3 spans the upper surface of the base 11, which includes support seats 31 and adjusting blocks 35 fixed to both sides of the surface of the base 11. Two fixed rods 32 are arranged between the two fixed rods 32, and a limit self-stop mechanism 4 is slidably installed on the surface of the two fixed rods 32. The movement of the limit self-stop mechanism 4 realizes the adaptive adjustment of the lateral movement distance of the plasma cutting gun 7, which overcomes the defects of fixed lateral movement stroke and low efficiency of traditional cutting devices. Adjustment blocks 35 slide on the surface of the two fixed rods 32. The two adjustment blocks 35 are used to limit the two sides of the limit self-stop mechanism 4 to avoid overshooting in lateral movement. The limit self-stop mechanism 4 includes an upper docking plate 43 and a lower docking plate 41 placed on the surface of the fixed rods 32. The bottom of the lower docking plate 41 is provided with a mounting plate 42 facing downward. The plasma cutting gun 7 is fixed on one side of the mounting plate 42. The vertical fixed installation method ensures the stable positioning of the cutting gun 7, which solves the problem of the difficulty in stable adjustment of the cutting gun height in traditional devices.

[0050] See Figure 1-4 The mounting groove 12 has upright plates 14 at both ends of its lower surface. The plate limiting mechanism 2 includes a threaded rod 21 rotatably mounted between the two upright plates 14. The threaded rod 21 is perpendicular to the axis of the conveying roller 15. By rotating the threaded rod 21, the crossbar 24 moves synchronously, thereby adjusting the plate limiting width. The plate limiting mechanism 2 also includes a crossbar 24 symmetrically sliding on the surface of the mounting groove 12. The lower surface of the mounting groove 12 has a groove for limiting the end of the crossbar 24. The groove structure ensures that the crossbar 24 slides only in a straight line without deviation, improving the limiting accuracy. Side limiting rollers 25 are evenly rotatably mounted on the upper surface of the crossbar 24. The side limiting rollers 25 are placed in the gap of the conveying roller 15 and are higher than the conveying roller 15. This structure can effectively constrain the position of both sides of the plate during the conveying process, keeping it in the center position. This solves the problems of complicated manual adjustment of the limiting position and plate deviation affecting the cutting accuracy in the prior art.

[0051] See Figure 1-6The threaded rod 21 has symmetrically screwed moving blocks 22 on its surface. Each moving block 22 has a connecting rod 23 hinged to both sides. The ends of the two connecting rods 23 on the same side, away from the moving blocks 22, are hinged to the crossbar 24. Rotating the threaded rod 21 causes the two moving blocks 22 to move simultaneously in opposite directions, which in turn causes the crossbar 24 to move closer or further away from each other via the connecting rods 23, thus adjusting the distance between the side limiting rollers 25. A connecting rod 36 is fixedly installed at the bottom of the adjusting block 35, passing between two adjacent conveying rollers 15. The bottoms of the two connecting rods 36 are bolted to the crossbar 24, and the connecting rods 36 are offset outwards relative to the crossbar 24. This structure allows the adjusting block 35 to be adjusted synchronously when the crossbar 24 is adjusted, so that the lateral movement range of the limit self-stop mechanism 4 automatically changes according to the width of the plate, thereby ensuring that the lateral movement stroke of the plasma cutting gun 7 matches the width of the plate. This solves the problem of reduced efficiency and incomplete cutting caused by the fixed lateral movement stroke of the cutting gun in the background technology.

[0052] See Figure 1-3 Two support rods 13 are fixed to the lower horizontal line inside the mounting groove 12. A slag box 5 is slidably installed on the upper surface of the two support rods 13. The slag box 5 is placed directly below the plasma cutting gun 7. The slag box 5 is hollow inside with an open top. The slag box 5 is used to collect slag during cutting. The slag box 5 can prevent high-temperature slag from falling directly into the inner side of the base 11 and causing damage to the equipment. At the same time, it is easy to clean up in a centralized manner, which solves the problem of slag splashing everywhere and being detrimental to equipment maintenance in traditional devices.

[0053] See Figure 5 One of the support bases 31 has a plasma power supply box 6 fixedly installed on its outer side. The plasma power supply box 6 is connected to the plasma cutting gun 7 through a flexible hose. The flexible hose serves as both a gas channel and a cable line to ensure the stable operation of the cutting gun 7. This layout structure can shorten the connection distance between the power supply box 6 and the cutting gun 7, reduce energy consumption, and solve the problems of complex power connection and difficult maintenance in the background technology.

[0054] See Figure 5 A main shaft 33 is rotatably mounted between two support seats 31. The main shaft 33 is placed parallel between two fixed rods 32. A drive motor 34 is fixed to the outside of the support seats 31, and the end of the main shaft 33 is mounted on the output end of the drive motor 34. A spiral groove 331 is formed on the surface of the main shaft 33. The spiral groove 331 cooperates with the fixing bolt of the limit self-stop mechanism 4, so that the limit self-stop mechanism 4 can generate lateral displacement as the main shaft 33 rotates. By driving the main shaft 33 to rotate through the drive motor 34, the plasma cutting gun 7 can be automatically moved laterally, improving the cutting efficiency and solving the problems of low efficiency and unstable operation caused by the need for manual movement of the cutting gun in the background technology.

[0055] See Figure 7-10The upper connecting plate 43 and the lower connecting plate 41 respectively wrap around the upper and lower parts of the fixed rod 32 and the main shaft 33. The upper connecting plate 43 has a mounting box 44 at the top center. The mounting box 44 has a sliding groove 442 at the bottom. The sliding plate 45 is vertically slidably installed inside the sliding groove 442. Two second fixing bolts 46 are fixedly installed at the bottom of the sliding plate 45. The two second fixing bolts 46 are both placed inside the spiral groove 331. The distance between the two second fixing bolts 46 is equal to the pitch of the spiral groove 331. Through the cooperation between the sliding plate 45 and the spiral groove 331 on the surface of the main shaft 33, it can be ensured that the limit self-stop mechanism 4 maintains precise synchronization with the main shaft 33 when moving laterally, which solves the jamming and deviation problems that occur during the lateral movement of the cutting gun in the background technology.

[0056] See Figure 7-10 A mounting hole 443 is vertically opened at the center of the upper surface of the mounting box 44. A spring 47 is placed inside the mounting hole 443, and a nut 49 is screwed onto the top of the mounting hole 443. The spring 47 is placed between the slide plate 45 and the nut 49, and the spring 47 applies a downward thrust to the slide plate 45. This structure ensures that the second fixing bolt 46 always works in close contact with the inner side of the spiral groove 331, improving the stability and reliability of the movement. At the same time, the design of the mounting hole 443 and the nut 49 facilitates the replacement and maintenance of the spring 47, solving the problem of difficult replacement of elastic components after long-term operation of traditional devices.

[0057] See Figure 7-10 A first fixing bolt 451 is screwed onto one side of the slide plate 45. The extrusion slide plate 48 slides laterally through the mounting box 44. Both ends of the extrusion slide plate 48 extend beyond the side of the mounting box 44. A V-shaped track groove 481 is formed on the surface of the extrusion slide plate 48, and the first fixing bolt 451 is placed inside the V-shaped track groove 481. An observation window 441 is formed on one side of the mounting box 44. The observation window 441 is used to observe and install the first fixing bolt 451, which is convenient for adjustment and maintenance. A stop block 351 is provided on the side of the two adjusting blocks 35 that are close to each other. The extrusion slide plate 48 is limited by the stop blocks 351 on both sides. When the limit self-stop mechanism 4 moves laterally to the edge of the plate, the extrusion slide plate 48 moves in the opposite direction under the action of the stop block 351, pushing the first fixing bolt 451 to disengage, thereby realizing the automatic stop of the plasma cutting gun 7. This solves the problems of overshooting, excessive idle stroke and increased energy consumption of the cutting gun in the background technology.

[0058] Example 2:

[0059] See Figure 1-10In actual use, the efficient cutting device provided in this embodiment first places the metal sheet to be cut on the conveying roller 15 of the material conveying mechanism 1; the mounting groove 12 opened on the base 11 is used to fix the conveying roller 15, so that the conveying roller 15 can rotate stably, thereby driving the sheet to move smoothly in the horizontal direction; the arrangement of the conveying roller 15 ensures that the sheet is subjected to uniform force, avoiding the sheet from tilting due to single-point force.

[0060] After the plate is placed in, the rotating threaded rod 21 drives the moving block 22 installed on its surface to move. The moving block 22 is connected to the connecting rod 23, which further drives the crossbar 24 to move, thereby adjusting the position of the side limiting roller 25 on the crossbar 24. The side limiting roller 25 is higher than the conveying roller 15 and located in its gap, ensuring the constraint on both sides of the plate and keeping the plate in the center position during the conveying process. At the same time, the adjusting block 35 moves synchronously through the connecting rod 36 connected to the crossbar 24 to realize the adaptive adjustment of the stroke of the limit self-stop mechanism 4, so that the transverse cutting range automatically matches the width of the plate.

[0061] During the stable conveying of the sheet metal, the plasma cutting gun 7 is fixed on the mounting plate 42 of the lower docking plate 41. The plasma cutting gun 7 is connected to the external plasma power supply box 6 through a hose and cable. The power supply box 6 provides the cutting gun 7 with the electrical energy and gas required for the high-energy plasma arc. When the plasma cutting gun 7 is started, it can form a high-temperature plasma arc on the surface of the sheet metal and melt and cut the metal sheet metal. The high-temperature molten slag generated during the cutting process will fall into the slag box 5 below the base 11 by gravity. The hollow structure and open design of the slag box 5 facilitate subsequent cleaning.

[0062] During the lateral cutting process, the drive motor 34 drives the spindle 33 to rotate. The spiral groove 331 on the surface of the spindle 33 engages with the second fixing bolt 46 at the bottom of the limit self-stop mechanism 4. The slide plate 45 is kept pressed against the spiral groove 331 by the spring 47, so that the limit self-stop mechanism 4 moves horizontally stably with the rotation of the spindle 33. The plasma cutting gun 7 completes the straight cutting of the plate during the lateral movement. When it moves to the edge of the plate, the squeezing slide plate 48 contacts the stop block 351 on the adjusting block 35. After being restricted, it slides in the opposite direction. The V-shaped track groove 481 drives the first fixing bolt 451 to move upward, so that the second fixing bolt 46 disengages from the spiral groove 331, thereby stopping the lateral movement of the limit self-stop mechanism 4. This avoids the cutting gun 7 from continuing to move due to inertia and causing idle stroke, thus improving the cutting efficiency.

[0063] After the cutting on one side is completed, the plate continues to move to the next designated position via the conveyor roller 15. Then, the drive motor 34 drives the main shaft 33 to rotate in the opposite direction, and the limit self-stop mechanism 4 moves laterally again in the other direction until it contacts the stop block 351 on the other side and stops. This process is repeated to achieve continuous transverse cutting of the plate. The observation window 441 on the mounting box 44 makes it easy for the operator to check the operating status of the first fixing bolt 451 during operation. The mounting hole 443 and the nut 49 facilitate the replacement or adjustment of the spring 47 to ensure the stability of the equipment during long-term operation.

[0064] The working principle of this invention is as follows: First, the plasma cutting gun 7 is vertically installed on the mounting plate 42. The height of the plasma cutting gun 7 is adjusted and fixed according to the thickness of the plate to be cut. The plasma cutting gun 7 and the plasma power supply box 6 are connected through a phase reaction pipe and wires to perform transverse cutting on the plate passing below.

[0065] The material to be cut is placed on the surface of the conveying roller 15 and moved by the rotation of the conveying roller 15. The rotating threaded rod 21 controls the movement of the two moving blocks 22 simultaneously. Since the two ends of the crossbar 24 are limited by the groove, the two crossbars 24 can be controlled to move closer or further apart by the cooperation of the moving blocks 22 and the connecting rod 23 to accommodate materials of different widths. The side limiting roller 25 limits the material on both sides so that the conveyed material is always placed in the center of the equipment. The adjusting block 35 can only slide along the surface of the fixed rod 32, and the bottom connecting rod 36 is fixed to the crossbar 24 by bolts. Therefore, when adjusting the distance between the two crossbars 24, the adjusting block 35 will be adjusted synchronously so that the distance of the adjusting block 35 is slightly larger than the width of the material.

[0066] Because spring 47 always applies a downward thrust to slide plate 45, so that second fixing bolt 46 is placed inside spiral groove 331, when the material moves to the designated position, the drive motor 34 is started to drive the main shaft 33 to rotate. At this time, the cooperation between second fixing bolt 46 and spiral groove 331 corresponds to the overall transverse movement of limit self-stop mechanism 4, so as to drive plasma cutting gun 7 to move transversely for cutting. After the transverse cutting on one side is completed, the protruding extrusion slide plate 48 will be limited and extruded by stop block 351, so that extrusion slide plate 48 is extruded and moves in the opposite direction. The first fixing bolt 451 can be pushed upward through the V-shaped track groove 481, which in turn causes the slide plate 45 to move upward as a whole, so that the second fixing bolt 46 disengages from the spiral groove 331. At this time, the limit self-stop mechanism 4 stops moving, and the plasma cutting gun 7 just moves laterally beyond the edge of the material to be cut. This structure can automatically adjust the lateral movement distance of the plasma cutting gun 7 when changing materials of different widths, so that the plasma cutting gun 7 stops moving after cutting. The single movement stroke is slightly greater than the width of the material to reduce the stroke and improve efficiency.

[0067] After a single cut is completed, the plate can continue to move to a specified distance, and then the limit self-stop mechanism 4 can move in the opposite direction to cut until it is limited by the stop block 351 on the other side to complete the cutting work. The mounting hole 443 and nut 49 are for the convenience of installing and replacing the spring 47. The observation window 441 is for the convenience of installing the first fixing bolt 451 and observing the movement of the internal parts.

[0068] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A high-efficiency cutting device, comprising a material conveying mechanism (1), characterized in that: The material conveying mechanism (1) includes a base (11), and an installation groove (12) is provided on the upper surface of the base (11). A conveying roller (15) is uniformly and rotatably installed above the surface of the installation groove (12). A plate limiting mechanism (2) is installed inside the mounting groove (12), which is used to limit the two sides of the conveyed plate. A transverse moving mechanism (3) spans the upper surface of the base (11). The transverse moving mechanism (3) includes a support seat (31) and an adjusting block (35) fixed on both sides of the surface of the base (11). Two fixed rods (32) are arranged between the two support seats (31). A limit self-stop mechanism (4) is slidably installed on the surface of the two fixed rods (32). The adjusting block (35) slides on the surface of the two fixed rods (32). The two adjusting blocks (35) are used to limit the two sides of the limit self-stop mechanism (4). The limit self-stop mechanism (4) includes an upper docking plate (43) and a lower docking plate (41) placed on the surface of the fixed rods (32). The bottom of the lower docking plate (41) is provided with a mounting plate (42) facing downward. A plasma cutting gun (7) is fixed on one side of the mounting plate (42). A main shaft (33) is rotatably mounted between the two support seats (31). The main shaft (33) is placed parallel between the two fixed rods (32). A drive motor (34) is fixed on the outside of the support seats (31). The end of the main shaft (33) is mounted on the output end of the drive motor (34). The surface of the main shaft (33) is provided with a spiral groove (331); The upper docking plate (43) and the lower docking plate (41) are respectively wrapped around the upper and lower parts of the fixing rod (32) and the main shaft (33). The upper docking plate (43) has a mounting box (44) at the top center. The mounting box (44) has a sliding groove (442) at the bottom inside. The sliding plate (45) is vertically slidably installed inside the sliding groove (442). The bottom of the slide plate (45) is fixedly provided with two second fixing bolts (46), both of which are located inside the spiral groove (331), and the distance between the two second fixing bolts (46) is equal to the pitch inside the spiral groove (331).

2. The high-efficiency cutting device according to claim 1, characterized in that: The mounting groove (12) has upright plates (14) at both ends of its lower surface. The plate limiting mechanism (2) includes a threaded rod (21) that is rotatably installed between the two upright plates (14). The threaded rod (21) is perpendicular to the axis of the conveying roller (15). The plate limiting mechanism (2) further includes a crossbar (24) that slides symmetrically on the surface of the mounting groove (12). The lower surface of the mounting groove (12) is provided with a groove for limiting the end of the crossbar (24). A side limiting roller (25) is uniformly rotated and installed on the upper surface of the crossbar (24). The side limiting roller (25) is placed in the gap of the conveying roller (15) and the side limiting roller (25) is higher than the conveying roller (15).

3. The high-efficiency cutting device according to claim 2, characterized in that: The threaded rod (21) has a symmetrically screwed moving block (22) on its surface. Both sides of the moving block (22) are hinged with connecting rods (23). The ends of the two connecting rods (23) on the same side that are away from the moving block (22) are hinged to the crossbar (24). The bottom of the adjusting block (35) is fixedly provided with a connecting rod (36), which passes through the space between two adjacent conveying rollers (15). The bottoms of the two connecting rods (36) are respectively installed on the crossbar (24) by bolts, and the connecting rods (36) are offset outward relative to the crossbar (24).

4. The high-efficiency cutting device according to claim 1, characterized in that: Two support rods (13) are fixed on the lower horizontal line inside the mounting groove (12). A slag box (5) is slidably installed on the upper surface of the two support rods (13). The slag box (5) is placed directly below the plasma cutting gun (7). The slag box (5) is hollow inside with an open top. The slag box (5) is used to receive slag during cutting.

5. The high-efficiency cutting device according to claim 1, characterized in that: One of the support bases (31) is fixedly installed with a plasma power box (6) on its outer side, and the plasma power box (6) is connected to the plasma cutting gun (7) through a flexible tube.

6. The high-efficiency cutting device according to claim 1, characterized in that: The mounting box (44) has a mounting hole (443) vertically opened at the center of the upper surface. A spring (47) is placed inside the mounting hole (443). A nut (49) is screwed onto the top of the mounting hole (443). The spring (47) is placed between the slide plate (45) and the nut (49). The spring (47) applies a downward thrust to the slide plate (45).

7. The high-efficiency cutting device according to claim 6, characterized in that: The first fixing bolt (451) is screwed on one side of the slide plate (45). The extrusion slide plate (48) slides laterally through the mounting box (44). Both ends of the extrusion slide plate (48) extend beyond the side of the mounting box (44). A V-shaped track groove (481) is opened on the surface of the extrusion slide plate (48). The first fixing bolt (451) is placed inside the V-shaped track groove (481). The mounting box (44) has an observation window (441) on one side, which is used to observe and install the first fixing bolt (451). Both of the two adjustment blocks (35) are provided with a stop block (351) on the side that is close to each other, and the extrusion slide (48) is limited by the stop blocks (351) on both sides.

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