Metal plate plasma cutting device

Abstract

The invention relates to the technical field of metal plate plasma cutting, in particular to a metal plate plasma cutting device which comprises a material containing table, a plasma cutting head capable of moving front and back and left and right is installed on the upper surface of the material containing table, and a material conveying barrel is installed on the portion, located on the lower side of the plasma cutting head, of the material containing table. A treatment mechanism is arranged on the lower side of the material conveying barrel and comprises a material receiving box and a treatment box, the treatment box is located on the upper side of the material receiving box, sand storage boxes are fixed to the left end and the right end of the treatment box, a plurality of partition plates are arranged on the inner side of the treatment box, and the rear ends of the partition plates rotationally penetrate through the inner wall of the rear side of the treatment box in a round rod shape; an elastic lifting plate is arranged on the rear side of the treatment box. The processing box can be driven by the power vibration structure through the material receiving box to shake left and right, so that sand in the sand storage box enters the inner side of the processing box, and then the sand is in relative contact with a plate on the upper side of the partition plate when shaking along with the processing box so as to shake and remove burrs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal plate plasma cutting, and in particular to a metal plate plasma cutting device. BACKGROUND

[0002] The plasma cutting machine is a processing method that uses the heat of high-temperature plasma arc to melt part or locally melt the metal at the cutting edge of the workpiece, and uses the momentum of high-speed plasma to remove the molten metal to form a cut. At present, the plasma cutting machine is widely used in the automobile, pressure vessel, chemical machinery, nuclear industry, general machinery, engineering machinery and other industries.

[0003] Chinese patent CN116851892A discloses a discharging device for a plasma cutting machine, relating to the technical field of plasma cutting, and discloses a discharging device for a plasma cutting machine, which comprises a workbench, a cutting mechanism and a clamping mechanism. The clamping mechanism comprises a material blocking assembly and a clamping assembly, the clamping assembly comprises a clamping drive assembly, a base, a support seat and a clamping rod, the clamping drive assembly is installed in the groove of the workbench, the clamping drive assembly is drivingly connected with the base, the base is slidingly connected with the workbench through the groove, a plurality of support seats are fixedly connected to the side of the base away from the clamping drive assembly, a plurality of clamping rods are fixedly installed on the workbench, the material blocking assembly comprises a material blocking drive assembly and a material blocking plate, the material blocking drive assembly is installed on the base near the discharging end of the workbench, and the material blocking drive assembly is drivingly connected with the material blocking plate. The position of the metal plate is preliminarily positioned by the material blocking plate, and the position of the metal plate is further lifted and clamped by the clamping assembly, so as to ensure the machining precision. The above-mentioned related technology has the following defects: when the plasma head is used to cut a specific shape from the metal plate, the cut shape will be separated from the raw plate material, and burrs will exist at the edge of the separated formed plate material. The burrs after cutting are in a high-temperature state and are easy to remove. In the prior art, deburring is generally performed separately after cutting is completed. The burrs after cooling are not easy to remove. Therefore, a metal plate plasma cutting device is proposed, which can timely remove the burrs of the cut plate material. SUMMARY

[0004] In order to timely remove the burrs of the plate material cut by the plasma cutting head, the present application provides a metal plate plasma cutting device.

[0005] The metal plate plasma cutting device provided by the present application adopts the following technical scheme: a material placing table is provided, the upper surface of the material placing table is provided with a plasma cutting head which can move forward, backward, left and right, a material conveying cylinder is installed below the plasma cutting head, and a processing mechanism is arranged below the material conveying cylinder.

[0006] The processing mechanism comprises a receiving box and a processing box, the processing box is located on the upper side of the receiving box, the left and right ends of the processing box are fixed with sand storage boxes, a plurality of partition plates are arranged on the inner side of the processing box, the rear end of the partition plate is in the form of a round rod and is rotatably penetrated into the inner wall of the rear side of the processing box, the left and right sides of the processing box are respectively communicated with the two sand storage boxes, the rear end of the partition plate is fixed with a linkage plate, the linkage plate is elastically connected with the back of the processing box, the rear side of the processing box is provided with an elastic lifting plate, the lower side of the rear end of the elastic lifting plate is elastically rotatably connected with a side block, the side block is located on the rear side of the linkage plate, and sand particles are placed in the sand storage box.

[0007] The upper end of the receiving box is fixed with a notch ring on the front and rear sides of the processing box, a power structure is arranged on the front side of the notch ring of the processing box and is used for controlling the intermittent rotation of the processing box around the axis of the notch ring, a power vibration structure is arranged on the material placing table and is used for controlling the reciprocating movement of the receiving box, and a transmission structure is arranged on the rear side of the processing box and is used for controlling the intermittent reciprocating movement of the side block.

[0008] Optionally, a rod-shaped net is arranged on the upper side of each partition plate on the left and right sides of the processing box, and a sand storage groove is formed in one side of each partition plate in the sand storage box.

[0009] Optionally, a sand lifting plate is arranged on the inner side of the sand storage groove, the sand lifting plate is rotatably connected with the sand storage box near the processing box, and the sand particles are arranged on the upper side of the sand lifting plate on the inner side of the sand storage groove.

[0010] The front end of the sand lifting plate connection shaft is coaxially fixed with a straight gear, the straight gear is meshed with a toothed plate on the side close to the processing box, each sand storage box is slidably connected with a prismatic rod, the prismatic rod is elastically connected with the sand storage box, and the toothed plate and the prismatic rod located on the same front side of the sand storage box are fixed together.

[0011] The inner surface of the notch ring on the front side of the processing box is fixed with a protrusion at the lowest end, and the lower end of the prismatic rod is in sliding contact with the inner surface of the notch ring.

[0012] Optionally, the end of the sand lifting plate away from the processing box is in sliding contact with the inner wall of the sand storage groove, the side of the sand storage groove away from the processing box is in the form of a circular arc, and the circular groove axis of the sand storage groove is coaxially arranged with the sand lifting plate on the corresponding inner side and the sand storage box connection shaft.

[0013] Optionally, the power vibration structure comprises a silk cylinder and a power reciprocating silk rod, the power reciprocating silk rod is threadedly inserted into the silk cylinder, the silk cylinder is fixed with the receiving box, and the power reciprocating silk rod is connected with the material placing table.

[0014] Optionally, the receiving box is slidably connected with a horizontal rod on the front and rear sides, and the two ends of the horizontal rod are fixed with the material placing table.

[0015] Optionally, the transmission structure comprises a reciprocating silk shaft, the reciprocating silk shaft is rotatably connected with the processing box, the lower end of the reciprocating silk shaft is fixed with a bevel gear, and the side block is threadedly sleeved on the outer surface of the reciprocating silk shaft.

[0016] Two arc-shaped bevel gear rings are fixed on the inner annular surface of the gap ring at the rear side of the processing box, and the two arc-shaped bevel gear rings are symmetrically distributed on the left and right sides of the processing box, and the inner annular surface of the arc-shaped bevel gear ring is tangent to the bevel gear.

[0017] Optionally, the lower surface of the linkage plate is fixed with an angle fixing block, and the angle fixing block is in contact with the processing box.

[0018] Optionally, a material gathering box is communicated and installed on the upper end of the processing box, the upper end of the material gathering box is flared, the opening at the upper end of the material conveying cylinder is larger than the opening at the lower end of the material conveying cylinder, and the lower end of the material conveying cylinder is located inside the material gathering box.

[0019] In summary, the present application has the following beneficial technical effects:

[0020] 1. By setting the sand storage box and the partition plate, the cut plate falls onto the upper side of the partition plate inside the processing box, the power vibration structure drives the processing box to shake left and right through the receiving box, the sand particles in the sand storage box enter the inside of the processing box, and then the sand particles are in contact with the cut plate on the upper side of the partition plate and shake to remove burrs.

[0021] 2. By setting the sand storage groove, the sand lifting plate, the protruding block and the straight gear, when the processing box reciprocates around the axis of the gap ring, the prongs on the lower side of the processing box gradually contact the protruding block, the prongs are pushed to move upward relative to the sand storage box, the moving tooth plate is engaged with the straight gear to drive the sand lifting plate to rotate, the space on the upper side of the sand lifting plate is increased, the sand particles in the sand storage groove on the upper side of the processing box and the sand storage groove on the lower side of the processing box can be moved to the inside of the sand storage groove, the partition plate is downwardly rotated, the sand particles are prevented from being downwardly rotated together with the cut plate, when the processing box is in a vertical state, the two prongs are separated from the protruding block, the sand lifting plates on the left and right sides of the processing box are in an inverted V shape, and the sand particles in the sand storage grooves on the left and right sides can be moved to the processing box, so that the sand particles and the cut plate are in full contact.

[0022] 3. By setting the material gathering box and the material conveying cylinder, the lower end of the material conveying cylinder is located inside the material gathering box when the processing box rotates around the axis of the gap ring and the processing box shakes left and right together with the receiving box, so that the cut plate cut by the plasma cutting head cannot fall outside the processing box. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the rear view of part of the structure in the embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the structure of the distribution of the material conveying cylinder and the material gathering box in the embodiment of the present application;

[0026] Figure 4It is a schematic front view of part of the structure in an embodiment of the present invention;

[0027] Figure 5 This is a structural diagram of the distribution of the sand lifting plate and the sand storage tank in an embodiment of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the connection between the partition plate and the linkage plate in an embodiment of the present invention;

[0029] Figure 7 is a schematic side view of part of the structure in an embodiment of the present invention;

[0030] Figure 8 In the embodiment of the present invention Figure 4 A magnified schematic diagram of the structure in the middle.

[0031] Figure numerals: 1. Material placement table; 2. Plasma cutting head; 3. Material transfer barrel; 4. Processing mechanism; 41. Material receiving box; 42. Processing box; 421. Rod-shaped net; 43. Sand storage box; 431. Sand storage trough; 432. Sand lifting plate; 433. Straight gear; 434. Tooth plate; 435. Ridge rod; 436. Bump; 44. Partition plate; 45. Linkage plate; 46. Elastic lifting plate; 47. Side block; 48. Power vibration structure; 481. Wire drum; 482. Power reciprocating screw rod; 483. Cross bar; 49. Transmission structure; 491. Reciprocating wire shaft; 492. Arc-shaped bevel gear ring; 493. Bevel gear; 410. Power structure; 411. Gap ring; 412. Fixed angle block; 5. Material collection box. DETAILED DESCRIPTION

[0032] The following is combined with Figures 1-8 The present invention is described in further detail.

[0033] The embodiment of the present invention discloses a metal plate plasma cutting device. Figures 1-8 As shown, it includes a material placement table 1, and a plasma cutting head 2 that can move forward, backward, left and right is installed on the upper surface of the material placement table 1. The plasma cutting head 2 can spray plasma cutting flow to cut a specific shape of the plate placed on the lower side by moving forward, backward, left and right. The material placement table 1 is located at the lower side of the plasma cutting head 2 and is equipped with a material transfer cylinder 3. The material placement table 1 is located at the lower side of the plasma cutting head 2 and has no blocking structure for the falling of the plate, so that the cut plate can fall into the material transfer cylinder 3, and a processing mechanism 4 is provided on the lower side of the material transfer cylinder 3.

[0034] The processing mechanism 4 comprises a receiving box 41 and a processing box 42, the processing box 42 is located on the upper side of the receiving box 41, the front of the receiving box 41 is open, the plate material inside can be taken out, the upper end of the processing box 42 is communicated and installed with the gathering box 5, the upper end of the gathering box 5 is flared, the opening of the upper end of the conveying cylinder 3 is larger than the opening of the lower end of the conveying cylinder 3, the lower end of the conveying cylinder 3 is located inside the gathering box 5, the plate material falling into the conveying cylinder 3 can enter the processing box 42 through the gathering box 5, the processing box 42 is fixed with the sand storage box 43 at the left and right ends, a plurality of partition plates 44 are arranged inside the processing box 42, the plate material falling into the processing box 42 first falls onto the upper side of the uppermost partition plate 44.

[0035] The rear end of the partition plate 44 is round rod-shaped and rotates through the rear inner wall of the processing box 42, so that the partition plate 44 will not form a gap with the processing box 42 during rotation, the left and right sides of the processing box 42 are respectively communicated with the two sand storage boxes 43, the rod-shaped net 421 is installed on the upper side of each partition plate 44 on the left and right sides of the processing box 42, the rod-shaped net 421 can block the plate material under the condition that the sand particles pass, so that the plate material will not enter the sand storage box 43, the sand storage groove 431 is arranged inside the sand storage box 43 on one side of each partition plate 44, the sand lifting plate 432 is arranged inside the sand storage groove 431, the end of the sand lifting plate 432 close to the processing box 42 is rotationally connected with the sand storage box 43, and the sand particles are located on the upper side of the sand lifting plate 432 inside the sand storage groove 431.

[0036] The end of the sand lifting plate 432 away from the processing box 42 is in sliding contact with the inner wall of the sand storage groove 431, the side of the sand storage groove 431 away from the processing box 42 is arc-shaped, the arc groove axis of the sand storage groove 431 is coaxially arranged with the sand lifting plate 432 and the connecting shaft of the sand storage box 43 on the corresponding inside, in the upward rotation of the sand lifting plate 432, the sand particles in the sand storage groove 431 can enter the upper side of the partition plate 44 inside the processing box 42 through the rod-shaped net 421.

[0037] The linkage plate 45 is fixed at the rear end of the partition plate 44, the lower surface of the linkage plate 45 is fixed with a fixed angle block 412, the fixed angle block 412 is in contact with the processing box 42, the linkage plate 45 is elastically connected with the back surface of the processing box 42, the bottom surface of the linkage plate 45 and the processing box 42 are connected through a spring, which has a tendency to pull the linkage plate 45 to rotate downward and close to the processing box 42, when the fixed angle block 412 is in contact with the processing box 42, the partition plate 44 is in a horizontal state, the rear side of the processing box 42 is provided with an elastic lifting plate 46, the rear end of the elastic lifting plate 46 is elastically connected with a side block 47, the elastic lifting plate 46 and the side block 47 are connected through a torsion spring, so that the elastic lifting plate 46 has a tendency to be horizontal, the side block 47 is located at the rear side of the linkage plate 45, sand particles are placed in the sand storage tank 43, when the side block 47 drives the elastic lifting plate 46 to move upward, the elastic lifting plate 46 pushes the linkage plate 45 upward by contacting with the linkage plate 45, and drives the corresponding partition plate 44 to rotate downward, when the partition plate 44 and the linkage plate 45 cannot rotate, the elastic lifting plate 46 continues to move upward, when the elastic lifting plate 46 moves upward, it is dislocated with the contacted linkage plate 45 through elastic deformation, in the upward movement of the side block 47, the partition plate 44 can be pushed downward to rotate downward from bottom to top at one time, so that the plate materials on the upper side of the partition plate 44 can fall downward in turn, when the side block 47 drives the elastic lifting plate 46 to move downward, the elastic lifting plate 46 is dislocated with the linkage plate 45 after contacting, the elastic lifting plate 46 is dislocated with the linkage plate 45 through relative elastic rotation with the side block 47.

[0038] The receiving box 41 is fixed with a notch ring 411 at the upper end of the receiving box 41, the front side of the notch ring 411 is provided with a power structure 410 for controlling the intermittent rotation of the processing box 42 around the axis of the notch ring 411, the power structure 410 includes a motor and a center shaft, the center shaft is rotatably connected with the front side of the notch ring 411, the center shaft is coaxially installed with the output end of the motor, the motor is installed on the front surface of the front side of the notch ring 411, the motor can drive the processing box 42 to rotate intermittently through the center shaft.

[0039] The straight gear 433 is coaxially fixed at the front end of the connecting shaft of the sand lifting plate 432 and the sand storage box 43, and the gear plate 434 is engaged with the straight gear 433 near the side of the processing box 42. The prismatic rod 435 is slidingly connected to the front side of each sand storage box 43 and is elastically connected to the sand storage box 43. The gear plate 434 and the prismatic rod 435 located on the front side of the same sand storage box 43 are fixed together. The prismatic rod 435 is rotatably connected to the roller at the contact end of the notch ring 411. The roller can rotate on the inner ring surface of the notch ring 411 by the prismatic rod 435 during the rotation of the processing box 42. The protrusion 436 is fixed at the lowest end of the inner ring surface of the notch ring 411 located on the front side of the processing box 42. The lower end of the prismatic rod 435 is in sliding contact with the inner ring surface of the notch ring 411. When the prismatic rod 435 is not in contact with the protrusion 436, the prismatic rod 435 drives the sand lifting plates 432 on both sides of the partition plate 44 to be distributed in an inverted V shape under the elastic connection with the sand storage box 43. When the prismatic rod 435 moves to the protrusion 436, the prismatic rod 435 is pushed to move upward relative to the sand storage box 43. The meshing of the moving gear plate 434 and the straight gear 433 can drive the sand lifting plate 432 to rotate downward, increase the space on the upper side of the sand lifting plate 432, and enable the sand particles in the processing box 42 and the sand storage groove 431 on the upper side of the processing box 42 to move to the inside of the sand storage groove 431 on the lower side, so that the partition plate 44 rotates downward, preventing the sand and gravel from rotating downward together with the plate material.

[0040] The material placing table 1 is provided with a power vibration structure 48 for controlling the reciprocating left-right movement of the receiving box 41. The power vibration structure 48 comprises a silk cylinder 481 and a power reciprocating silk rod 482. The power reciprocating silk rod 482 is threadedly inserted into the silk cylinder 481. The silk cylinder 481 is fixed to the receiving box 41. The power reciprocating silk rod 482 is connected to the material placing table 1.

[0041] The receiving box 41 is slidingly connected to the horizontal rods 483 on the front and rear sides. The ends of the horizontal rods 483 are fixed to the material placing table 1. The material placing table 1 is provided with a motor for controlling the rotation of the power reciprocating silk rod 482. The meshing of the power reciprocating silk rod 482 and the silk cylinder 481 can drive the receiving box 41 and the processing box 42 to shake left and right. The shaking of the processing box 42 can drive the sand particles inside the processing box 42 to move relative to the plate material, so that the sand material can timely remove the burrs of the plate material which are not cooled.

[0042] The processing box 42 is provided with a transmission structure 49 for controlling the intermittent reciprocating up-down movement of the side block 47.

[0043] The transmission structure 49 comprises a reciprocating silk shaft 491. The reciprocating silk shaft 491 is rotatably connected to the processing box 42. The lower end of the reciprocating silk shaft 491 is fixed with a bevel gear 493. The side block 47 is threadedly sleeved on the outer surface of the reciprocating silk shaft 491.

[0044] Two arc-shaped bevel gear rings 492 are fixed on the inner surface of the gap ring 411 at the back side of the processing box 42, and the two arc-shaped bevel gear rings 492 are symmetrically distributed on the left and right sides of the processing box 42, the inner surface of the arc-shaped bevel gear ring 492 is tangent to the bevel gear 493, after the prong 435 contacts the protrusion 436, the bevel gear 493 meshes with the arc-shaped bevel gear ring 492, so as to ensure that the partition plate 44 will rotate only after the sand particles pass through the rod-shaped net 421 and enter the sand storage groove 431.

[0045] The working principle is: the plate to be cut is placed on the upper side of the material placing table 1, the plasma cutting head 2 cuts the plate in movement, the cut plate falls through the material conveying cylinder 3 to the upper side of the uppermost partition plate 44 on the inner side of the processing box 42, then when the side block 47 drives the elastic lifting plate 46 to move upward, the elastic lifting plate 46 pushes the linkage plate 45 from bottom to top in sequence when moving upward, so that the partition plates 44 distributed from bottom to top are rotated in sequence, so that the plate falling on the uppermost partition plate 44 falls downward in sequence in the rotation of the partition plate 44, and there is plate on the upper side of each partition plate 44 in the continuous falling of the plate on the upper side, the power vibration structure 48 drives the processing box 42 to shake left and right through the receiving box 41, so that the sand particles in the sand storage box 43 enter the inner side of the processing box 42, then the sand particles follow the processing box 42 to shake and move against the plate on the upper side of the partition plate 44 to deburr, after the plate falling from the upper side of the lowermost partition plate 44 falls, the plate falls to the receiving box 41.

[0046] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A metal plate plasma cutting device, comprising a material placement table (1), characterized in that: The upper surface of the material placement table (1) is provided with a plasma cutting head (2) that can move forward, backward, left and right. The material placement table (1) is provided with a material transfer cylinder (3) located below the plasma cutting head (2). A processing mechanism (4) is provided below the material transfer cylinder (3). The processing mechanism (4) comprises a material receiving box (41) and a processing box (42), wherein the processing box (42) is located on the upper side of the material receiving box (41), and sand storage boxes (43) are fixed at both the left and right ends of the processing box (42). A plurality of partition plates (44) are arranged inside the processing box (42), and the rear end of the partition plate (44) is in the shape of a round rod and rotates through the inner wall of the rear side of the processing box (42). The left and right sides of the processing box (42) are respectively connected with the two sand storage boxes (43), and the rear end of the partition plate (44) is fixed with a linkage plate (45), and the linkage plate (45) is elastically connected to the back side of the processing box (42). An elastic lifting plate (46) is arranged on the rear side of the processing box (42), and the lower side of the rear end of the elastic lifting plate (46) is elastically rotatably connected to a side block (47), and the side block (47) is located on the rear side of the linkage plate (45). Sand grains are placed in the sand storage box (43); The upper end of the material receiving box (41) is located at both the front and rear sides of the processing box (42), and a notch ring (411) is fixed thereto. The notch ring (411) located at the front side of the processing box (42) is equipped with a power structure (410) for controlling the processing box (42) to intermittently rotate back and forth around the axis of the notch ring (411). The material placement table (1) is equipped with a power vibration structure (48) for controlling the reciprocating left and right movement of the material receiving box (41). The rear side of the processing box (42) is equipped with a transmission structure (49) for controlling the intermittent reciprocating up and down movement of the side block (47).

2. The metal plate plasma cutting device according to claim 1, characterized in that: Rod-shaped nets (421) are installed on the left and right sides of the processing box (42) and on the upper side of each partition plate (44), and a sand storage tank (431) is opened on one side of each partition plate (44) inside the sand storage box (43).

3. The metal plate plasma cutting device according to claim 2, characterized in that: A sand lifting plate (432) is provided inside the sand storage tank (431), and the sand lifting plate (432) is rotatably connected to the sand storage box (43) at one end close to the processing box (42), and the sand grains are located on the upper side of the sand lifting plate (432) inside the sand storage tank (431); A spur gear (433) is coaxially fixed to the front end of the connecting shaft of the sand lifting plate (432) and the sand storage box (43); a toothed plate (434) is meshed with the spur gear (433) on the side close to the processing box (42); a rib rod (435) is slidably connected to the front side of each sand storage box (43); the rib rod (435) is elastically connected to the sand storage box (43); and the toothed plate (434) and the rib rod (435) located on the front side of the same sand storage box (43) are fixed together; A protrusion (436) is fixed to the lowest end of the inner ring surface of the notch ring (411) located at the front side of the processing box (42), and the lower end of the ridge rod (435) is in sliding contact with the inner ring surface of the notch ring (411).

4. The metal plate plasma cutting device according to claim 3, characterized in that: The end of the sand lifting plate (432) away from the processing box (42) is in sliding contact with the inner wall of the sand storage tank (431), and the side of the sand storage tank (431) away from the processing box (42) is in an arc shape. The arc groove axis of the sand storage tank (431) is coaxially arranged with the corresponding inner connecting axis of the sand lifting plate (432) and the sand storage box (43).

5. The metal plate plasma cutting device according to claim 1, characterized in that: The power vibration structure (48) includes a wire drum (481) and a power reciprocating screw (482), wherein the power reciprocating screw (482) is threadedly inserted into the wire drum (481), the wire drum (481) is fixed to the material receiving box (41), and the power reciprocating screw (482) is connected to the material placement table (1).

6. The metal plate plasma cutting device according to claim 5, characterized in that: The front and rear sides of the material receiving box (41) are both slidably connected to a cross bar (483), and both ends of the cross bar (483) are fixed to the material placement table (1).

7. The metal plate plasma cutting device according to claim 1, characterized in that: The transmission structure (49) includes a reciprocating shaft (491), the reciprocating shaft (491) is rotatably connected to the processing box (42), a bevel gear (493) is fixed to the lower end of the reciprocating shaft (491), and a side block (47) is threadedly sleeved on the outer surface of the reciprocating shaft (491); Two arcuate bevel gear rings (492) are fixed on the inner ring surface of the notch ring (411) at the rear side of the processing box (42). The two arcuate bevel gear rings (492) are symmetrically distributed on the left and right sides of the processing box (42). The inner ring surface of the arcuate bevel gear ring (492) is tangent to the bevel gear (493).

8. The metal plate plasma cutting device according to claim 1, characterized in that: A fixed angle block (412) is fixed on the lower surface of the linkage plate (45), and the fixed angle block (412) is in contact with the processing box (42).

9. The metal plate plasma cutting device according to claim 1, characterized in that: The upper end of the processing box (42) is connected to a material gathering box (5) installed thereon. The upper end of the material gathering box (5) is in a flared shape. The upper end opening of the material transfer cylinder (3) is larger than the lower end opening of the material transfer cylinder (3). The lower end of the material transfer cylinder (3) is located inside the material gathering box (5).

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