Plasma metal cutting apparatus and method

Abstract

The application discloses a kind of plasma metal cutting equipment and cutting method, it is related to plasma metal cutting technical field, including plasma cutting machine, the upper mechanism is arranged in plasma cutting machine side;The upper mechanism includes hydraulic telescopic device, and one end of the hydraulic telescopic device is hinged with the side of plasma cutting machine, and the other end of the hydraulic telescopic device is hinged with placing plate, and the outer wall of the placing plate is fixedly connected with second hinged block, by setting the upper mechanism, push rod can push the metal plate in the metal plate stack lowermost to plasma cutting machine, so that metal plate can be automatically pushed to plasma cutting machine, cutting processing work is carried out, and the method is lifted without lifting the heavy metal plate, a large amount of staff's energy is saved, so that operation is more convenient, and the problem of bump caused when metal plate is manually lifted is also reduced.

Description

TECHNICAL FIELD

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

[0002] Cutting machines are divided into flame cutting machines, plasma cutting machines, laser cutting machines, water cutting machines, etc. Laser cutting machines have the fastest efficiency and the highest cutting precision, but the cutting thickness is generally small; plasma cutting machines also have very fast cutting speed, and the cutting surface has a certain slope; flame cutting machines are suitable for carbon steel materials with large thickness;

[0003] The patent application with publication number CN221639918U discloses a cutting device for metal pipe fittings of a vehicle support, which belongs to the field of feeding structures. The cutting device comprises a machine table, a feeding mechanism arranged to cooperate with the use of the cutting device. The steel pipes to be cut and processed are placed in the vertical stacking manner into the storage shell and above the upper feeding plate in the storage shell, and then the driving motor is started to drive the output end to rotate the threaded rod through the rotating rod, so that the upper feeding plate moves upward in the storage shell through the threaded hole on the top surface of the connecting plate at the rear end of the threaded rod, and pushes the steel pipes in the storage shell upward during the movement. When the photoelectric sensor senses an object in front of the steel pipes during upward movement, the electric push rod moves the push plate forward, and the uppermost steel pipe in the storage shell is pushed onto the machine table, so that the fixed clamp fixes the steel pipe for cutting and processing.

[0004] Currently, when cutting metal plates, the metal plates are generally placed in storage racks for storage. When cutting, the worker needs to manually place the steel plate on the cutting machine table, and fix the steel plate through the fixed clamp on the machine table, and then cut and process it. Since the cutting device cuts the metal plate, the worker needs to manually feed it each time. The metal plate is heavy, and manual handling to the table surface is not only complicated, but also easy to cause the metal plate to be knocked and damaged. SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides a plasma metal cutting device and cutting method to achieve the purpose of solving the above problems.

[0006] To achieve the above purpose, the present application is implemented by the following technical scheme: a plasma metal cutting device and cutting method, comprising a plasma cutting machine, one side of the plasma cutting machine is provided with a feeding mechanism;

[0007] The feeding mechanism comprises:

[0008] Hydraulic telescopic device, one end of the hydraulic telescopic device is hinged to one side of the plasma cutting machine, the other end of the hydraulic telescopic device is hinged to a placing plate, the outer wall of the placing plate is fixedly connected with a second hinge block, the inner wall of the second hinge block is hinged to a first hinge block through a rotating shaft, one side of the first hinge block is fixedly connected with one side of the plasma cutting machine, and the hydraulic telescopic device is used to extend and retract to push the placing plate to rotate.

[0009] Cage cover plate, the cage cover plate is a three-sided frame structure in U shape, the outer wall of the cage cover plate is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with the outer wall of the placing plate, and the connecting rod is used to connect the placing plate and the cage cover plate, the placing plate is used to hold the metal plate, and the cage cover plate is used to support and protect the metal plate when the metal plates are stacked.

[0010] Preferably, a first sliding groove is formed between the cage cover plate and the placing plate, a sliding block is slidably connected to the inner wall of the first sliding groove, and the outer wall of the sliding block is fixedly connected with an electric sliding machine, one side of the hydraulic telescopic device is fixedly connected with a push rod, and the electric sliding machine is used to control the sliding block to slide left and right along the inner wall of the first sliding groove.

[0011] Preferably, a fixed rod is fixedly connected to the outer wall of the plasma cutting machine, one end of the fixed rod is fixedly connected with a long plate, a second sliding groove is formed in the inner wall of the long plate, the height of the inner wall of the second sliding groove is consistent with that of the first sliding groove, and the push rod is used to push the metal plate.

[0012] Preferably, a clamping block is fixedly connected to the top of the long plate, and the thickness of the clamping block can be embedded into the clamping block.

[0013] Preferably, a limiting mechanism is arranged on the outer wall of the cage cover plate, the limiting mechanism comprises a fixed sleeve, one side of the fixed sleeve is fixedly connected with one side of the cage cover plate, hydraulic oil is arranged in the inner wall of the fixed sleeve, and a counterweight sliding block and a sliding baffle are arranged in the inner wall of the fixed sleeve.

[0014] Preferably, the outer wall of the sliding baffle is slidably connected with the inner wall of the fixed sleeve, the inner wall of the fixed sleeve is slidably connected with the outer wall of the counterweight sliding block, the outer wall of the counterweight sliding block is fixedly connected with a baffle, the outer wall of the baffle is fixedly connected with an elastic rope, one end of the elastic rope is fixedly connected with the outer wall of the fixed sleeve through a vertical plate, the vertical plate is fixedly connected with the outer wall of the fixed sleeve, and the outer wall of the sliding baffle is fixedly connected with a limiting plate.

[0015] Preferably, a rotating mechanism is arranged on the outer wall of the cage cover plate, the rotating mechanism comprises a hollow frame, the outer wall of the cage cover plate is fixedly connected with the inner wall of the hollow frame, the inner wall of the hollow frame is fixedly connected with an extension rod, one end of the extension rod is connected with the push rod through a bearing, the outer wall of the push rod is fixedly connected with a roller, one side of the roller is fixedly connected with a blade.

[0016] Preferably, the inner wall of the placing plate is provided with a groove, the groove is a square-shaped groove, the groove can reduce the weight of the placing plate, and the blades are inclined and distributed on the outer wall of the push rod.

[0017] A plasma metal cutting method, comprising the following steps:

[0018] S1: a plurality of metal plates to be plasma cut are stacked one by one on the feeding mechanism, then the hydraulic telescopic device is started to make the hydraulic telescopic device extend and retract to push and lift the placing plate by means of hinging;

[0019] S2: when the placing plate is rotated and lifted to a horizontal position, the metal plates placed in the placing plate are horizontally transported to the left side of the plasma cutting machine, and the metal plates are adjusted;

[0020] S3: at this time, the staff can pull the metal plates to the plasma cutting machine in a pulling manner, which is convenient for operation;

[0021] S4: the metal plates can also be automatically pushed to the plasma cutting machine by starting the electric sliding machine to drive the push rod, so as to perform cutting processing work;

[0022] S5: after the placing plate is turned over and placed flat, the clamping block is embedded between the two clamping blocks, so as to position the positions of the placing plate and the cage plate.

[0023] The application provides a plasma metal cutting device and a cutting method, which have the following beneficial effects:

[0024] 1、The feeding mechanism is arranged, the push rod can push the lowermost metal plate in the metal plate stack to the plasma cutting machine, so that the metal plate can be automatically pushed to the plasma cutting machine for cutting processing work, the feeding method saves a lot of energy of the staff by not lifting the heavy metal plate, makes the operation more convenient, and reduces the bumping problem caused by manual lifting of the metal plate.

[0025] 2、The feeding mechanism is arranged, after the placing plate is turned over and placed flat, the clamping block on one side of the cage plate above the placing plate is embedded between the two clamping blocks, so as to position the positions of the placing plate and the cage plate, prevent the problem of distortion and shaking, ensure that the metal plate is not pushed unstably and inaccurately when the push rod pushes the metal plate in the future, and have the function of self-checking, if the position deviates, the position deviates and needs to be adjusted in time, so as to ensure the stability of the metal plate feeding.

[0026] 3、The utility model discloses through being provided with the feeding mechanism, when the placing plate rotates and lifts straight, the first sliding slot between the placing plate and the cage cover plate will be aligned with the second sliding slot of the middle of long board, at this moment, the electric sliding machine can drive the slider, push rod continue to slide along the inner wall of the second sliding slot right, can push the metal sheet far enough, realizes the feeding integration of metal sheet.

[0027] 4、The utility model discloses through being provided with the limiting mechanism, realize the side of the metal sheet that is stacked into a layer by layer by the side of limiting plate and sliding baffle at this moment is pressed, guarantee that the metal sheet can realize the feeding of layer by layer to the plasma cutting machine worktable, and can complete the disposable mass of metal sheet, and do not need the staff to place one by one, and carry out the continuous lifting, as far as possible guarantee the work efficiency maximization of metal sheet feeding.

[0028] 5、The utility model discloses through being provided with the limiting mechanism, also can realize when placing the metal sheet, the automatic retraction of sliding baffle and limiting plate, do not affect the placement of metal sheet, and when righting the metal sheet and pushing, need not manual operation of staff, can complete the automatic blocking of metal sheet, realize the work process of continuously pushing layer by layer, and then make the operation more convenient, avoid the occurrence of accidental situation and the problem of efficiency reduction because of the operation mistake.

[0029] 6、The utility model discloses through being provided with the rotating mechanism, when the push rod pushes out the metal sheet of bottom layer, the metal sheet of top layer is supported through the three telescopic rods of rear, guarantee that the metal sheet of top layer keeps stable stacking when the push rod pushes the metal sheet of the most bottom, will not incline and fall and collapse when the metal sheet of the most bottom is pushed out metal stack, guarantee the stable feeding work when the metal sheet is pushed out layer by layer.

[0030] 7、The utility model discloses through being provided with the rotating mechanism, utilize the rotation of the inclined surface of vane, can form the air transverse flow of stirring, realize the setting of the recess, can blow off some particulate matter existing on the surface of placing plate as far as possible, to this to guarantee that the metal sheet of top layer falls on the placing plate when the push rod is recycled to the hollow frame and will not appear the knock of causing with particulate matter, as far as possible make the metal sheet in the feeding process play the role of being protected, reduce the damage that metal sheet receives, to guarantee the quality of subsequent metal sheet cutting processing. ACCURACY OF DRAWINGS

[0031] Figure 1 It is the structure schematic drawing of the utility model;

[0032] Figure 2 It is the structure schematic drawing of the feeding mechanism of the utility model;

[0033] Figure 3 It is the cross section structure schematic drawing of the feeding mechanism of the utility model;

[0034] Figure 4 Schematic diagram of the motion state of the feeding mechanism of the application Figure 1 ;

[0035] Figure 5 Schematic diagram of the motion state of the feeding mechanism of the application Figure 2 ;

[0036] Figure 6 Schematic diagram of the motion state of the feeding mechanism of the application Figure 3 ;

[0037] Figure 7 Enlarged view of A of the application Figure 6 ;

[0038] Figure 8 Enlarged view of B of the application Figure 6 ;

[0039] Figure 9 Schematic diagram of the structure of the limiting mechanism of the application Figure 1 ;

[0040] Figure 10 Schematic diagram of the structure of the limiting mechanism of the application Figure 2 ;

[0041] Figure 11 Schematic diagram of the motion state of the limiting mechanism of the application Figure 1 ;

[0042] Figure 12 Schematic diagram of the motion state of the limiting mechanism of the application Figure 2 ;

[0043] Figure 13 Schematic diagram of the structure of the rotating mechanism of the application

[0044] Figure 14 Enlarged view of C of the application Figure 3 ;

[0045] Figure 15 Schematic diagram of the structure of the rotating mechanism of the application

[0046] In the figure: 1 plasma cutting machine, 2 feeding mechanism, 201 hydraulic extender, 202 first hinged block, 203 rotating shaft, 204 second hinged block, 205 placing plate, 206 first sliding groove, 207 connecting rod, 208 cage plate, 209 electric sliding machine, 210 sliding block, 211 push rod, 212 clamping block, 213 clamping block, 214 long plate, 215 second sliding groove, 216 fixed rod, 3 limiting mechanism, 301 fixed sleeve, 302 counterweight sliding block, 303 baffle, 304 elastic rope, 305 vertical plate, 306 sliding baffle, 307 limiting plate, 4 rotating mechanism, 401 extender, 402 roller, 403 blade, 404 groove, 405 hollow frame. DETAILED DESCRIPTION

[0047] Embodiment one: please refer to Figures 1-4 The application provides a technical solution: a plasma metal cutting device and a cutting method, comprising a plasma cutting machine 1, and an upper feeding mechanism 2 arranged on one side of the plasma cutting machine 1.

[0048] The upper feeding mechanism 2 comprises:

[0049] A hydraulic telescopic device 201, one end of the hydraulic telescopic device 201 is hingedly connected to one side of the plasma cutting machine 1, and the other end of the hydraulic telescopic device 201 is hingedly connected to a placing plate 205, the outer wall of the placing plate 205 is fixedly connected to a second hinge block 204, the inner wall of the second hinge block 204 is hingedly connected to a first hinge block 202 through a rotating shaft 203, one side of the first hinge block 202 is fixedly connected to one side of the plasma cutting machine 1, and the hydraulic telescopic device 201 is used to extend and retract to push the placing plate 205 to rotate.

[0050] A cage cover plate 208, the cage cover plate 208 is a three-sided frame structure in the shape of a U, the outer wall of the cage cover plate 208 is fixedly connected to a connecting rod 207, one end of the connecting rod 207 is fixedly connected to the outer wall of the placing plate 205, the connecting rod 207 is used to connect the placing plate 205 and the cage cover plate 208, the placing plate 205 is used to hold the metal plate, and the cage cover plate 208 is used to support and protect the metal plate when the metal plate is stacked.

[0051] The first sliding groove 206 is formed between the cage cover plate 208 and the placing plate 205, the inner wall of the first sliding groove 206 is slidably connected to a sliding block 210, the outer wall of the sliding block 210 is fixedly connected to an electric sliding machine 209, one side of the hydraulic telescopic device 201 is fixedly connected to a push rod 211, and the electric sliding machine 209 is used to control the sliding block 210 to slide left and right along the inner wall of the first sliding groove 206.

[0052] The outer wall of the plasma cutting machine 1 is fixedly connected to a fixed rod 216, one end of the fixed rod 216 is fixedly connected to a long plate 214, the inner wall of the long plate 214 is provided with a second sliding groove 215, the height of the inner wall of the second sliding groove 215 is consistent with that of the first sliding groove 206, and the push rod 211 is used to push the metal plate.

[0053] One side of the cage cover plate 208 is fixedly connected to a clamping block 212, the top of the long plate 214 is fixedly connected to a clamping block 213, and the thickness of the clamping block 212 can be embedded into the clamping block 213.

[0054] Several metal plates that need to be plasma cut are stacked one by one on the feeding mechanism 2, and then the hydraulic expander 201 is started to make the hydraulic expander 201 expand and lengthen, and the placement plate 205 is pushed up in a hinged manner, and the placement plate 205 rotates upward around the center of the pivot shaft 203 under the hinge of the second hinge block 204, the pivot shaft 203 and the first hinge block 202;

[0055] When the placement plate 205 rotates upward to the horizontal position, the metal plates placed in the placement plate 205 are horizontally transported to the left side of the plasma cutting machine 1 at this time, and the workers can pull the metal plates to the plasma cutting machine 1 in a pulling manner, which is convenient for operation;

[0056] The sliding block 210 can also drive the push rod 211 to move from left to right on the placement plate 205 by starting the electric sliding machine 209 to drive the sliding block 210 to slide in the inner wall of the first sliding groove 206, so that the push rod 211 can push the lowermost metal plate in the metal plate stack to the plasma cutting machine 1, so that the metal plate can be automatically pushed to the plasma cutting machine 1 for cutting work. This feeding method saves a lot of energy of the workers by not lifting the heavy metal plate, makes the operation more convenient, and also reduces the problem of bumping caused by manual lifting of the metal plate;

[0057] After the placement plate 205 is flipped and placed flat, the clamping block 212 on one side of the cage plate 208 above the placement plate 205 will be embedded between the two clamping blocks 213, so as to position the placement plate 205 and the cage plate 208, prevent the problem of twisting and shaking, and ensure that the metal plate is not pushed unstably and inaccurately when the push rod 211 pushes the metal plate. It also has the function of self-checking. If there is a deviation, it means that the position is deviated and needs to be adjusted in time to ensure the stability of the metal plate feeding;

[0058] When the placement plate 205 rotates and lifts, the first sliding groove 206 between the placement plate 205 and the cage plate 208 will be aligned with the second sliding groove 215 opened in the middle of the long plate 214, and at this time the electric sliding machine 209 can drive the sliding block 210 and the push rod 211 to continue sliding to the right along the inner wall of the second sliding groove 215, so that the metal plate can be pushed far enough to realize the integration of the metal plate feeding;

[0059] And it can also realize that the sliding baffle 306 and the limiting plate 307 are automatically retracted when the metal plate is placed, without affecting the placement of the metal plate, and the automatic blocking of the metal plate can be completed without manual operation when the metal plate is pushed into position, realizing the work process of continuously pushing one by one, thereby making the operation more convenient and avoiding accidents and efficiency problems caused by operation errors;

[0060] Embodiment two: please refer to Figures 1-12 On the basis of embodiment one, the application provides a technical solution: the outer wall of the cage cover plate 208 is provided with a limiting mechanism 3, the limiting mechanism 3 includes a fixed sleeve 301, one side of the fixed sleeve 301 is fixedly connected with one side of the cage cover plate 208, the inner wall of the fixed sleeve 301 is provided with hydraulic oil, and the inner wall of the fixed sleeve 301 is provided with a counterweight sliding block 302 and a sliding baffle 306.

[0061] The outer wall of the sliding baffle 306 is slidably connected with the inner wall of the fixed sleeve 301, the inner wall of the fixed sleeve 301 is slidably connected with the outer wall of the counterweight sliding block 302, the outer wall of the counterweight sliding block 302 is fixedly connected with a baffle 303, the outer wall of the baffle 303 is fixedly connected with an elastic rope 304, one end of the elastic rope 304 is fixedly connected with the outer wall of the fixed sleeve 301 through a vertical plate 305, the vertical plate 305 is fixedly connected with the outer wall of the fixed sleeve 301, and the outer wall of the sliding baffle 306 is fixedly connected with a limiting plate 307.

[0062] When the placing plate 205 and the cage cover plate 208 are in an inclined collapsed state, the staff can place the metal plate inside, and the metal plate is placed in this way, that is, the metal plate is lifted vertically, the bottom is dropped into the placing plate 205 and the cage cover plate 208, and the metal plate is pushed backward to make the metal plate fall on the cage cover plate 208, so that the metal plate is placed. At this time, since the placing plate 205 and the cage cover plate 208 are in an inclined state, the fixed sleeve 301 and the counterweight sliding block 302 on the outer wall of the cage cover plate 208 are also in an inclined state, and the counterweight sliding block 302 slides downward in the inner wall of the fixed sleeve 301 through its own heavy gravity, and the elastic rope 304 is deformed by pulling the baffle 303. When the counterweight sliding block 302 extends from the inside of the fixed sleeve 301, the hydraulic oil in the inside of the fixed sleeve 301 forms a negative pressure, and the limiting plate 307 on the other side of the fixed sleeve 301 is quickly sucked into the fixed sleeve 301, so that the limiting plate 307 and the sliding baffle 306 at this time completely enter the inside of the fixed sleeve 301, so that the limiting plate 307 and the sliding baffle 306 cannot extend out of the cage cover plate 208, and the sliding baffle 306 and the limiting plate 307 are embedded in the cage cover plate 208. At this time, it is convenient to directly place the metal plate.

[0063] When the placing plate 205 and the cage cover plate 208 are lifted back to the normal position, the fixed sleeve 301 and the counterweight slider 302 are also returned to the normal position at this time, then the counterweight slider 302 is no longer subjected to the vertical downward gravity, but is subjected to the elastic force of the elastic rope 304, and the elastic force of the elastic rope 304 pulls the baffle 303 and the counterweight slider 302, so that the counterweight slider 302 is retracted into the fixed sleeve 301, and is limited by the baffle 303 against the fixed sleeve 301, at this time, since the counterweight slider 302 enters the fixed sleeve 301, the internal hydraulic oil is pushed and extruded, and the sliding baffle 306 and the limiting plate 307 are extruded and pushed out of the outside of the cage cover plate 208 and the fixed sleeve 301, so that the side of the limiting plate 307 and the sliding baffle 306 at this time is abutted against the side of the metal plates stacked layer by layer, so that when the push rod 211 pushes the lowermost metal plate, all the metal plates above the second last layer are automatically blocked, so that the metal plates can be loaded layer by layer on the workbench of the plasma cutting machine 1, and a large amount of metal plates can be stacked at one time, without the need for workers to place one by one and continuously lift, so as to maximize the work efficiency of the metal plate loading;

[0064] And also can realize when placing the metal plate, the sliding baffle 306 and the limiting plate 307 automatically retract, do not affect the placement of the metal plate, and when the metal plate is placed and pushed, without manual operation of the worker, the automatic blocking of the metal plate can be completed, the work process of continuously pushing layer by layer is realized, and then the operation is more convenient, and the occurrence of accidents and efficiency reduction problems caused by operation errors is avoided;

[0065] Embodiment three: please refer to Figures 1-15 On the basis of the embodiment one and the embodiment two, the application provides a technical solution: the outer wall of the cage cover plate 208 is provided with a rotating mechanism 4, the rotating mechanism 4 comprises a hollow frame 405, the outer wall of the cage cover plate 208 is fixedly connected with the inner wall of the hollow frame 405, the inner wall of the hollow frame 405 is fixedly connected with an extension rod 401, one end of the extension rod 401 is connected with the push rod 211 through a bearing, the outer wall of the push rod 211 is fixedly connected with a roller 402, one side of the roller 402 is fixedly connected with a blade 403.

[0066] The inner wall of the placing plate 205 is provided with a groove 404, the groove 404 is a square-shaped groove, the groove 404 can reduce the weight of the placing plate 205, and the blade 403 is inclinedly distributed on the outer wall of the push rod 211;

[0067] When the electric sliding machine 209 is started, it drives the slider 210 and the push rod 211 to push the metal plate. The push rod 211 will drive the telescopic rod 401 on the left side to stretch section by section through the bearing. The telescopic rod 401 is made of steel and has good bending and folding resistance. So when the push rod 211 drives the three telescopic rods 401 to stretch and lengthen at the same time, the three telescopic rods 401 behind can support the metal plate above when the push rod 211 pushes the bottom metal plate outward. This ensures that when the push rod 211 pushes the bottom metal plate, the metal plates above remain stably stacked and will not tilt, fall or collapse when the bottom metal plate is about to be pushed out of the metal stack. This ensures stable feeding when the metal plates are pushed out layer by layer.

[0068] Simultaneously, when push rod 211 is pushed out, the roller 402 on the outer wall of push rod 211 will contact the surface of the bottom placement plate 205. As push rod 211 is pushed, roller 402 will rotate in contact and drive blade 403 to rotate. The rotation of the inclined surface of blade 403 can create a lateral flow of air, which will displace metal particles and debris on the surface of placement plate 205 at the bottom of the pushed metal plate to a certain extent. Then, the groove 404 opened on the inner wall of placement plate 205 can be used to naturally fall outward. The groove 404 can blow away as many particles as possible from the surface of placement plate 205. This ensures that the metal plate above will not collide with particles when it falls onto placement plate 205 after push rod 211 is retracted into hollow frame 405. This protects the metal plate as much as possible during the feeding process, reduces damage to the metal plate, and ensures the quality of subsequent metal plate cutting and processing.

[0069] Furthermore, when the upper metal plate falls and touches the push rod 211, it will first contact the roller 402 on the push rod 211, thus avoiding the problem of large friction caused by the large contact area when the entire push rod 211 contacts the metal plate.

[0070] A plasma metal cutting method includes the following steps:

[0071] S1: Stack several metal plates that need to be plasma cut onto the feeding mechanism 2 one by one, and then activate the hydraulic telescoping device 201 to extend and retract the hydraulic telescoping device 201, and push the placement plate 205 upward through the hinge.

[0072] S2: When the placement plate 205 is rotated and lifted to a horizontal position, the metal plate placed in the placement plate 205 is horizontally transported to the left side of the plasma cutting machine 1 to straighten the metal plate.

[0073] S3: At this time, the operator can pull the metal plate onto the plasma cutting machine 1 by pulling it out for easy operation;

[0074] S4: the metal plate can be automatically pushed onto the plasma cutting machine 1 to perform cutting work by starting the electric sliding machine 209 to drive the push rod 211;

[0075] S5: after the placement plate 205 is turned over and placed flat, the clamping block 212 is embedded between the two clamping blocks 213, so as to position the placement plate 205 and the cage plate 208.

[0076] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A plasma metal cutting device, comprising a plasma cutting machine (1), characterized in that: The plasma cutting machine (1) is provided with a feeding mechanism (2) on one side; The feeding mechanism (2) includes: A hydraulic telescopic device (201) is provided. One end of the hydraulic telescopic device (201) is hinged to one side of the plasma cutter (1), and the other end of the hydraulic telescopic device (201) is hinged to a placement plate (205). A second hinge block (204) is fixedly connected to the outer wall of the placement plate (205). A first hinge block (202) is hinged to the inner wall of the second hinge block (204) through a pivot (203). One side of the first hinge block (202) is fixedly connected to one side of the plasma cutter (1). The hydraulic telescopic device (201) is used to extend and retract to push the placement plate (205) to rotate. Covering plate (208), the covering plate (208) is a U-shaped three-sided frame structure, the outer wall of the covering plate (208) is fixedly connected to the connecting rod (207), one end of the connecting rod (207) is fixedly connected to the outer wall of the placement plate (205), the connecting rod (207) is used to connect the placement plate (205) and the covering plate (208), the placement plate (205) is used to hold the metal plate, and the covering plate (208) is used to support and protect the metal plate when it is stacked; A first groove (206) is formed between the cover plate (208) and the placement plate (205). A slider (210) is slidably connected to the inner wall of the first groove (206). An electric sliding mechanism (209) is fixedly connected to the outer wall of the slider (210). A push rod (211) is fixedly connected to one side of the hydraulic telescopic device (201). The electric sliding mechanism (209) is used to control the slider (210) to slide left and right along the inner wall of the first groove (206). The plasma cutting machine (1) has a fixed rod (216) fixedly connected to its outer wall. One end of the fixed rod (216) is fixedly connected to a long plate (214). The inner wall of the long plate (214) is provided with a second sliding groove (215). The height of the inner wall of the second sliding groove (215) is the same as that of the first sliding groove (206). The push rod (211) is used to push the metal plate. A locking block (212) is fixedly connected to one side of the cover plate (208), and a clamping block (213) is fixedly connected to the top of the long plate (214). The thickness of the locking block (212) can be embedded in the clamping block (213). A limiting mechanism (3) is provided on the outer wall of the cover plate (208). The limiting mechanism (3) includes a fixing sleeve (301). One side of the fixing sleeve (301) is fixedly connected to one side of the cover plate (208). Hydraulic oil is provided on the inner wall of the fixing sleeve (301). A counterweight slider (302) and a sliding baffle (306) are provided on the inner wall of the fixing sleeve (301). The outer wall of the sliding baffle (306) is slidably connected to the inner wall of the fixed sleeve (301), the inner wall of the fixed sleeve (301) is slidably connected to the outer wall of the counterweight slider (302), the outer wall of the counterweight slider (302) is fixedly connected to a baffle (303), the outer wall of the baffle (303) is fixedly connected to an elastic rope (304), one end of the elastic rope (304) is fixedly connected to the outer wall of the fixed sleeve (301) through a vertical plate (305), the vertical plate (305) is fixedly connected to the outer wall of the fixed sleeve (301), and the outer wall of the sliding baffle (306) is fixedly connected to a limit plate (307). The outer wall of the cover plate (208) is provided with a rotating mechanism (4). The rotating mechanism (4) includes a hollow frame (405). The outer wall of the cover plate (208) is fixedly connected to the inner wall of the hollow frame (405). A telescopic rod (401) is fixedly connected to the inner wall of the outer wall of the hollow frame (405). One end of the telescopic rod (401) is connected to the push rod (211) through a bearing. A roller (402) is fixedly connected to the outer wall of the push rod (211). A blade (403) is fixedly connected to one side of the roller (402). The outer and inner walls of the placement plate (205) are provided with grooves (404), which are square grooves. The grooves (404) can reduce the weight of the placement plate (205). The blades (403) are distributed obliquely on the outer wall of the push rod (211).

2. A plasma metal cutting method, comprising a plasma metal cutting device according to claim 1, characterized in that, Includes the following steps: S1: Stack several metal plates that need to be plasma cut one by one onto the feeding mechanism (2), and then activate the hydraulic telescoping device (201) to extend and stretch the hydraulic telescoping device (201) and push the placement plate (205) upward through the hinge. S2: When the placement plate (205) is rotated and lifted to a horizontal position, the metal plate placed in the placement plate (205) is horizontally transported to the left side of the plasma cutter (1) to straighten the metal plate; S3: At this time, the staff can pull the metal plate onto the plasma cutting machine (1) by pulling it out, which is convenient for operation; S4: Alternatively, the metal plate can be automatically pushed onto the plasma cutting machine (1) by starting the electric sliding machine (209) to drive the push rod (211) and perform cutting processing. S5: After the placement plate (205) is flipped and laid flat, the locking block (212) is embedded between the two clamping blocks (213) to position the placement plate (205) and the cover plate (208).

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