An integrated automatic loading system for a plasma torch and its usage method

Abstract

The present invention discloses an integrated automatic loading system for a plasma torch and its usage method, which includes a rotary column, a cross arm, a ferrule, an integrated box, water, electricity and gas flexible pipelines, a plasma torch and a loading rack; the rotary column and the loading rack are arranged at intervals left and right, and a cross arm is provided at the movable end of the rotary column. The tail of the cross arm makes a rotational movement and a vertical up-and-down movement through the rotary column, and its head makes a telescopic movement along the tail and is clamped to the top of the ferrule; the tail of the water, electricity and gas flexible pipeline is fixed on the rotary column, and the middle part thereof is fixed on the cross arm. After its head is bundled through the ferrule, it is then connected to the integrated box; the bottom of the ferrule and the top of the integrated box form a male-female structure for connection, and the bottom of the integrated box is connected to the plasma torch; when the plasma torch is not working, it is placed on the loading rack, and when working, it is inserted into the furnace mouth through an attitude correction device through the rotational, up-and-down and telescopic movements of the cross arm. The whole process of the present invention is automated, improving the operation efficiency of the project.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma, and particularly relates to a plasma torch integrated automatic loading system and a using method thereof. Background Art

[0002] With the continuous popularization and application of plasma technology, the industrial maturity of plasma technology has become a direction that needs to be continuously overcome and optimized in the industry; as a carrier device for the application of plasma technology in the industrial furnace industry, the maturity of its supporting equipment is directly related to the operation efficiency and safety guarantee of engineering projects.

[0003] The core component electrode of the plasma torch has a certain service life and needs to be replaced regularly. In the prior art, most operations rely on manual labor combined with auxiliary tools. However, the application environment of the plasma torch in the industrial furnace industry is high temperature and high pressure, and the torch body also has a certain weight. There are at least 5 pipelines for its supporting water, electricity and gas, and the operation process also needs to be carried out strictly according to the operation steps. The efficiency, reliability and safety of manual operation cannot be effectively guaranteed. Especially in the solid waste disposal furnace, long-term manual operation will cause the furnace temperature to decrease, requiring more time for heating up, resulting in large energy waste, and the low degree of automation also indirectly increases the project cost investment and reduces the market competitiveness.

[0004] At present, some projects have adopted industrial robots for auxiliary operation. However, the price of industrial robots with large load capacity is often in the millions, and they have high requirements for the use environment and expensive maintenance costs, which are not suitable for popularization and application. Therefore, the above problems need to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a plasma torch integrated automatic loading system and a using method thereof, with full-process automatic operation. The plasma torch replacement process can be controlled within 3 minutes, solving the problems of safety, long time, cumbersome process and easy negligence leading to failures in manual operation, greatly improving the operation efficiency of the project and avoiding energy waste.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: An integrated automatic loading system for a plasma torch of the present invention is characterized in that it includes a rotary column, a cross arm, a ferrule, an integrated box, water, electricity and gas flexible pipelines, a plasma torch, an attitude correction device and a loading rack; the rotary column and the loading rack are vertically arranged at intervals on the left and right, and a cross arm is horizontally provided at the movable end of the rotary column. The tail of the cross arm rotates and moves vertically up and down through the rotary column, and its head makes a horizontal telescopic movement along its tail and is embedded and clamped with the top of the vertically arranged ferrule; the tail of the water, electricity and gas flexible pipeline is fixed on the rotary column, and the middle part thereof is fixed on the cross arm. After the head thereof is bundled through the ferrule, it is connected to the vertically arranged integrated box; the bottom of the ferrule and the top of the integrated box form a male-female structure for connection, and the bottom of the integrated box is connected to the vertically arranged plasma torch; when the plasma torch is not working, it is placed on the loading rack through the rotation, up and down and telescopic movements of the cross arm, and when it is working, it is inserted into the furnace mouth through the attitude correction device.

[0007] The slewing column includes a lower bracket, a slewing gear bearing, a pinion gear, a lower motor, an upper bracket, a column, a slide rail, a first slider, a seat plate, an upper support, a lower support, a first lead screw, a first motor, and a first movable nut; the upper bracket and the lower bracket are horizontally arranged in parallel at an interval up and down, and a slewing gear bearing is horizontally arranged coaxially between them. A lower motor is vertically arranged at intervals on the side of the lower bracket away from the loading rack. The output end of the lower motor is arranged upward and is meshed and connected with the slewing gear bearing through the pinion gear; a column is vertically arranged at the middle position of the upper surface of the upper bracket. Driven by the lower motor, through the meshing cooperation of the pinion gear and the slewing gear bearing, the column rotates horizontally with the upper bracket; two slide rails are vertically and parallelly fixed at intervals on one side surface of the column, and a seat plate is vertically and parallelly arranged at intervals on the side surface of the two slide rails away from the column. Four first sliders are arranged in a rectangle on the side surface of the seat plate close to the column, and the distance between two adjacent first sliders in the front and back is corresponding to the distance between the two slide rails. The seat plate is sleeved on the two slide rails through the first sliders and moves vertically up and down along the slide rails and rotates horizontally with the column; an upper support is horizontally and perpendicularly fixed at the top of the same side surface of the column relative to the slide rail, and a lower support is horizontally and perpendicularly fixed at the bottom of the same side surface of the column relative to the slide rail. The upper support and the lower support are respectively arranged at the upper and lower sides of the two slide rails at intervals, and a first lead screw is vertically arranged on the side away from the seat plate between them. The first lead screw is arranged at an interval from the seat plate, and its upper and lower ends are respectively rotatably connected with the upper support and the lower support. A first movable nut is also screwed on the first lead screw, and the upper end of the first lead screw vertically extends out of the upper surface of the upper support and is linked with the output end of the vertically arranged first motor; driven by the first motor, the first movable nut moves vertically up and down along the first lead screw and rotates horizontally with the column.

[0008] Preferably, the cross arm includes an outer frame, an inner frame, a first guide rail, a second slider, a second motor, a fixing block, a second lead screw, and a second movable nut; the tail of the horizontally arranged outer frame is perpendicularly and fixedly connected to the side surface of the seat plate away from the column, and its front side surface is fixedly connected to the first movable nut. Driven by the first motor, the outer frame moves vertically up and down and rotates horizontally with the column; an inner frame is coaxially and horizontally arranged at intervals along the length direction inside the outer frame, and first guide rails are respectively horizontally arranged on the upper and lower sides between the outer frame and the inner frame. The two first guide rails are respectively fixedly connected to the upper and lower inner surfaces of the outer frame along the length direction of the outer frame, and two second sliders are respectively fixedly arranged at left and right intervals on the upper and lower outer surfaces of the tail of the inner frame at positions corresponding to the first guide rails. Through the cooperation of the second sliders and the first guide rails, the inner frame makes a horizontal telescopic movement along the outer frame, and its head extends horizontally and perpendicularly out of the head of the outer frame; a second motor and a fixing block are respectively fixedly arranged at left and right intervals at the middle position of the lower inner surface of the outer frame, and the second motor and the fixing block do not interfere with the horizontal telescopic movement of the inner frame respectively; a second lead screw is horizontally arranged at the middle position between the second motor and the fixing block, and the second lead screw is horizontally arranged along the length direction of the outer frame. One end of the second lead screw is connected to the output end of the second motor in a linkage manner, and the other end is rotatably connected to the fixing block; a second movable nut is also screwed on the second lead screw, and the second movable nut is fixedly connected to the lower outer surface of the tail of the inner frame. Driven by the second motor, the inner frame makes a horizontal telescopic movement along with the second movable nut.

[0009] Preferably, the ferrule includes a first guide sleeve, an insulating screw sleeve, a bolt assembly, an insulating plate, a flange plate, a rib plate, a clamping piece, an upper stopper, a lower stopper, a guide rod, and a spring; the top of the vertically arranged first guide sleeve is fixedly sleeved with the head of the inner frame in an embedded manner, and its bottom vertically extends downward from the outer surface of the head of the inner frame; a flange plate is horizontally and fixedly arranged at the bottom of the first guide sleeve, and through the cooperation of the bolt assembly and the insulating screw sleeve, the flange plate is screwed and fixed to the upper surface of the horizontally arranged flange plate, and an insulating plate matching therewith is horizontally attached between the flange plate and the flange plate; four clamping pieces are sequentially arranged at intervals along the circumferential direction on the lower surface of the flange plate, each clamping piece is vertically arranged, and its top is fixedly connected to the lower surface of the flange plate through a corresponding rib plate, each clamping piece is made of spring steel, and its bottom is in an inverted hook shape and forms a male-female structure with the top of the integrated box for connection; an upper stopper is respectively arranged on the lower surface of each rib plate, and a lower stopper is respectively arranged at a position relative to the upper stopper on the outer bottom of each clamping piece, a guide rod is vertically arranged between each upper stopper and the corresponding lower stopper, each guide rod is arranged at an interval from the corresponding clamping piece, and a first spring is respectively sleeved on it; the bottom of each lower stopper is in an inverted V-shaped groove structure and forms a male-female structure with the top of the integrated box for connection.

[0010] Preferably, the water, electricity and gas flexible pipeline includes a ferrule male head, an insulating water and gas hose, a pipeline fixing seat, a solenoid valve group, a bracket, a cable and a copper nose; the front end of the insulating water and gas hose is provided with three paths and is respectively provided with a ferrule male head and integrated in the ferrule; a solenoid valve group is arranged at the middle position of the insulating water and gas hose, and the middle position of the insulating water and gas hose and the cable are respectively fixed on the outer surface of the outer frame of the cross arm through the pipeline fixing seat; a copper nose is arranged at the head of the cable and integrated in the ferrule; the latter half of the insulating water and gas hose and the cable are placed in the bracket, and one end of the bracket is fixed on the cross arm and the other end is fixed on the column; the bracket is a flexible structure and can move vertically up and down following the cross arm.

[0011] Preferably, the integrated box highly integrates the water, electricity and soft pipelines as well as the plasma torch, and it includes a clamping head, a buffer pad, a limiting ring, an integrated box outer frame, an upper insulation guide frame, a lower insulation fixing frame, a fixed water and gas pipeline, a displacement sensing device, a fixed copper plate, a compression sleeve assembly, and a bottom locking device; the top of the clamping head is in an inverted hook shape and corresponds to the inverted hook shape at the bottom of each clamping piece. The bottom of each clamping piece and the top of the clamping head of the integrated box form a male-female structure. A limiting ring is coaxially sleeved on the clamping head at a position close to the middle, and a buffer pad matching it is coaxially arranged on the upper surface of the limiting ring; an upper insulation guide frame is coaxially sleeved inside the clamping head, and the bottom of the clamping head is connected to the top of the integrated box outer frame; an L-shaped bracket is arranged on the outer wall surface of the integrated box outer frame, and a lower insulation fixing frame is coaxially sleeved at a position slightly above its interior. The lower insulation fixing frame adopts a three-layer composite structure, and the fixed water and gas pipelines and the fixed copper plates are arranged in a circumferential array without interfering with each other. After the outer surfaces are insulated with heat shrinkable sleeves, they respectively pass through the upper insulation guide frame and are fixed on the lower insulation fixing frame; the fixed water and gas pipeline includes a water inlet pipe, a water outlet pipe, an air pipe, an upper ferrule female head, a lower ferrule male head and a corrugated hose. The water inlet pipe is a rigid joint, and a displacement sensing device is also provided at its bottom; the upper ends of the water inlet pipe, the water outlet pipe and the air pipe are respectively connected to the corresponding ferrule male heads of the water, electricity and soft pipelines through the upper ferrule female heads, and lower ferrule male heads are respectively provided at the lower ends of the water inlet pipe, the water outlet pipe and the air pipe. Corrugated hoses are respectively provided between the water outlet pipe, the air pipe and the lower ferrule male heads; the upper parts of the two fixed copper plates are respectively connected to the corresponding copper lugs through bolt assemblies, and elastic locking structures are respectively provided at their lower parts for quick docking and separation; the compression sleeve assembly is arranged at the middle position inside the integrated box, and it includes an insulating pressing plate, a second guide rail, a third slider and a cylinder. Multiple through holes are opened on the insulating pressing plate according to the positions of the water, electricity and gas pipelines and the second guide rail. The bottom of the insulating pressing plate is connected to the third slider, the third slider is connected to the second guide rail, the second guide rail is fixed on the inner wall of the integrated box, the upper part of the insulating pressing plate is connected to the cylinder, and the cylinder is fixed on the inner wall of the integrated box. Four groups of the cylinder, the second guide rail and the third slider are arranged in a circumferential array; a bottom locking device is arranged on the inner bottom surface of the integrated box. The bottom locking device is arranged at the bottom of the integrated box and includes a cylinder support, a cylinder, a crank, a locking pin and an insulating guide clamping device;The cylinder support is arranged inside the integrated box, with four groups arrayed in the circumferential direction. A cylinder is set on the cylinder support, the cylinder is connected to a crank, the crank is connected to a locking pin. The outer ring of the insulating guiding clamping device is an L-shaped guiding ring, and the top angle of the L-shaped guiding ring is provided with a large chamfer structure. Four groups of pin holes are arrayed around the L-shaped ring, and the positions of the pin holes are consistent with the positions of the locking pins. The inner ring is an insulating clamping ring, and the insulating clamping ring and the L-shaped guiding ring are connected and fastened by bolts. The insulating clamping ring is set as two semi-circular structures and is connected and fastened radially by bolt assemblies. The outer frame limit block is arranged at the bottom side of the outer frame of the integrated box; the bottom locking device has functions of insulation, guiding, clamping and pre-tightening, ensuring the reliability of the connection between the integrated box and the plasma torch.

[0012] Preferably, the plasma torch includes a torch body, an extended water and gas pipeline, an elastic ferrule female head, a copper plug, a drain pipe and an elastic drain valve; three extended water and gas pipelines are vertically and sequentially arranged at intervals at the tail of the torch body, and an elastic ferrule female head is respectively arranged at the upper end of each extended water and gas pipeline, and is respectively connected to the corresponding lower ferrule male head of the water inlet pipe, the water outlet pipe and the gas pipe through the elastic ferrule female head; a drain pipe is further arranged at the lower end of the corresponding extended water and gas pipeline connected to the water inlet pipe, and an elastic drain valve is arranged at the lower end of the drain pipe; the two copper plugs are arranged at a 90° stagger with the extended water and gas pipeline and are respectively arranged in an L shape with the tail of the torch body. The two copper plugs are set with positive and negative poles, and one pole is fixed on the corresponding extended water and gas pipeline connected to the water inlet pipe, and the other pole is fixed on the outer shell of the torch body; the heads of the two copper plugs are both smooth pointed structures, and the conductive surfaces of their heads are set as smooth convex surfaces, and respectively form an inlaid structure with the lower elastic locking structures of the corresponding fixed copper plates.

[0013] Preferably, the loading rack integrates the functions of plasma torch loading and integrated box loading, and it includes a frame, second guide sleeves, attitude correction devices, pneumatic clamping devices, middle guide sleeves, flexible pads, drainage components, integrated box loading and unloading devices, buffer support rings and movable guide rings; on the inner top surface of the frame, two second guide sleeves are also provided at left and right intervals, and the loading of the corresponding plasma torch is preliminarily guided through the second guide sleeves; at the bottom of each second guide sleeve, an attitude correction device is also provided, and the attitude correction device is used to avoid the offloading problem of the corresponding plasma torch during loading; at the middle and upper position inside the frame, a fixing plate matching with it is also horizontally provided, and on the fixing plate, two arc structures matching with the pneumatic clamping devices are embedded at left and right intervals. Each pneumatic clamping device is respectively clamped with the fixing plate through the corresponding arc structure, and an arc-shaped PTFE cushion layer is also provided at the joint of the two. Through the mutual cooperation of the pneumatic clamping device and the bottom locking device of the integrated box, the plasma torch is loaded; at the middle position inside the frame, two middle guide sleeves are also provided at left and right intervals, and on the inner bottom surface of the frame, two flexible pads are also provided at left and right intervals. Each of the second guide sleeves, attitude correction devices, pneumatic clamping devices, middle guide sleeves and flexible pads maintains the same center line in the vertical direction; a drainage component is provided on one side of the frame, and a top pressure sensor is provided on its upper part, and the sensing head of the top pressure sensor is arranged upward; an integrated box loading and unloading device is provided at the upper and middle position on the other side of the frame, and a buffer support ring is provided at the bottom of the integrated box loading and unloading device; a movable guide ring is provided at the top of the integrated box loading and unloading device. The movable guide ring is composed of two semi-circles and is connected by a hinge in the 180° direction. Both side hinges are connected by pin shafts, one of the pin shafts is fixed, and the other pin shaft is movable; the movable guide ring of the integrated box loading and unloading device forms a male-female structure with the inverted V-shaped groove structure of the lower stop block of the ferrule for connection.

[0014] Preferably, each attitude correction device includes an insulating bracket, a first fixing bracket, a fixing ring and a first pressure sensor; each insulating bracket is arranged on the top of the furnace body, and a first fixing bracket is also fixedly provided on its top; each first fixing bracket is respectively connected with the corresponding fixing ring, and the center of each fixing ring is consistent with the center of the furnace body torch interface; on each fixing ring, four groups of first pressure sensors are also provided, and the four groups of first pressure sensors are arranged in a whole row along the circumferential direction.

[0015] The usage method of a plasma torch integrated automatic loading system of the present invention is innovative and includes the following steps:

[0016] (1) Connect the integrated box to the plasma torch

[0017] (1.1) First, place the plasma torch inside the loading rack, and ensure that the pneumatic clamping device of the loading rack is in the clamped state;

[0018] (1.2) Then, pre-install the insulating guiding and clamping device at the bottom of the integrated box onto the torch body of the plasma torch;

[0019] (1.3) The cylinder of the bushing assembly pushes the insulating pressure plate to the lower limit position of the cylinder;

[0020] (1.4) Driven by the first motor, the cross arm descends vertically, enabling the locking device at the bottom of the integrated box to be connected to the insulating guiding and clamping device for guiding;

[0021] (1.5) The cross arm continues to descend vertically. When the displacement sensing device touches the plasma torch, the cross arm stops descending;

[0022] (1.6) The cylinder of the bushing assembly drives the insulating pressure plate to the upper limit of the cylinder;

[0023] (1.7) The cylinder of the bottom locking device operates until it reaches the forward limit of the cylinder;

[0024] (1.8) The cylinder of the pneumatic clamping device of the loading rack disengages;

[0025] (1.9) Then, driven by the first motor, the cross arm ascends vertically to the upper limit position;

[0026] (1.10) The solenoid valve group of the water, electricity, and gas flexible pipeline is opened;

[0027] (1.11) Driven by the lower motor, the column rotates above the furnace opening;

[0028] (1.12) Then, driven by the first motor, the cross arm descends vertically. After inserting the plasma torch into the attitude correction device, the cross arm stops descending. The position of the plasma torch is finely adjusted through the feedback of four first pressure sensors until it is concentric with the attitude correction device;

[0029] (1.13) Then the cross arm continues to descend vertically until it is inserted into the furnace;

[0030] (2) The integrated box removes the plasma torch

[0031] (2.1) Driven by the first motor, the cross arm ascends vertically away from the furnace opening until it stops ascending at the upper limit position of the cross arm;

[0032] (2.2) Driven by the lower motor, the cross arm rotates with the column above the loading rack;

[0033] (2.3) The solenoid valve group of the water, electricity, and gas flexible pipeline is closed;

[0034] (2.4) Then, driven by the first motor, the cross arm descends vertically, driving the plasma torch to insert into the second guide sleeve of the loading rack. After passing through the attitude correction device, it stops descending. The position of the plasma torch is finely adjusted through the feedback of four first pressure sensors until it is concentric with the attitude correction device.

[0035] (2.5) Then the cross arm continues to descend vertically. When the outer frame limit block at the bottom of the integrated box touches the top pressure sensor of the loading rack, the cross arm stops descending.

[0036] (2.6) Then the cross arm descends 5 mm, and the elastic drain valve of the plasma torch is opened passively and remains open for 1 minute.

[0037] (2.7) Then the cross arm ascends vertically until the pressure of the top pressure sensor of the loading rack disappears, and the cross arm stops ascending.

[0038] (2.8) The cylinder of the pneumatic clamping device of the loading rack closes.

[0039] (2.9) The cylinder of the bushing assembly of the integrated box drives the insulating pressing plate to the lower limit of the cylinder.

[0040] (2.10) The cylinder of the bottom locking device of the integrated box acts until the cylinder retracts to the limit.

[0041] (2.11) Then, driven by the first motor, the cross arm ascends vertically to the upper limit.

[0042] The beneficial effects of the present invention:

[0043] (1) The whole process of the present invention is automated, and the plasma torch replacement process can be controlled within 3 minutes, solving problems such as safety, long time, cumbersome process and easy negligence leading to failures in manual operation, greatly improving the operation efficiency of the project, and avoiding waste of energy.

[0044] (2) The present invention has a high system integration degree, and occupies a small floor area and space.

[0045] (3) The materials used in the system of the present invention are all relatively common, with high material reliability, low one-time input cost, low maintenance cost, and easy to operate.

[0046] (4) The present invention adopts multiple insulation measures, strengthening the insulation performance of the overall structure, effectively ensuring the insulation environment required for the operation of the plasma torch, and greatly increasing the safety of the system. Description of the Drawings

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 It is a schematic structural diagram of an integrated automatic loading system for a plasma torch of the present invention.

[0049] Figure 2 It is a system floor plan of an integrated automatic loading system for a plasma torch of the present invention.

[0050] Figure 3 For Figure 1 It is a schematic structural diagram of the middle rotary column.

[0051] Figure 4 For Figure 1 It is a schematic structural diagram of the cross arm in

[0052] Figure 5 For Figure 1 It is a schematic structural diagram of the ferrule in

[0053] Figure 6 For Figure 1 It is a schematic structural diagram of the integrated box in

[0054] Figure 7 For Figure 6 It is a side view of

[0055] Figure 8 For Figure 1 It is a schematic structural diagram of the water, electricity and gas flexible pipeline in

[0056] Figure 9 For Figure 1 It is a schematic structural diagram of the plasma torch in

[0057] Figure 10 For Figure 9 It is a side view of

[0058] Figure 11 For Figure 1 It is a schematic structural diagram of the loading rack in

[0059] Figure 12 For Figure 11 It is a schematic structural diagram of the insulation attitude correction device part in

[0060] Figure 13 For Figure 12 It is a distribution schematic diagram of the first pressure sensor in

[0061] Figure 14This is a loading schematic diagram of the ferrule, integrated box, plasma torch and loading rack in the present invention.

[0062] Among them, 1 - slewing column; 2 - cross arm; 3 - ferrule; 4 - integrated box; 5 - flexible water, electricity and gas pipeline; 6 - plasma torch; 7 - loading rack; 8 - attitude correction device; 101 - lower bracket; 102 - slewing gear bearing; 103 - pinion; 104 - lower motor; 105 - upper bracket; 106 - column; 107 - slide rail; 108 - first slider; 109 - seat plate; 110 - upper support; 111 - lower support; 112 - first lead screw; 113 - first motor; 114 - first moving nut; 21 - outer frame; 22 - inner frame; 23 - first guide rail; 24 - second slider; 25 - second motor; 26 - fixed block; 27 - second lead screw; 28 - second moving nut; 301 - first guide sleeve; 302 - insulating bushing; 303 - bolt assembly; 304 - insulating plate; 305 - flange plate; 306 - rib plate; 307 - clamping piece; 308 - upper stop block; 309 - lower stop block; 310 - guide rod; 311 - first spring; 401 - clamping head; 402 - buffer pad; 403 - limit ring; 404 - integrated box outer frame; 405 - upper insulating guide frame; 406 - lower insulating fixed frame; 407 - fixed water and gas pipeline; 408 - displacement sensing device; 409 - fixed copper plate; 410 - compression sleeve assembly; 411 - bottom locking device; 51 - male ferrule; 52 - insulating water and gas hose; 53 - pipeline fixing seat; 54 - solenoid valve group; 55 - bracket; 56 - cable; 57 - copper nose; 61 - torch body; 62 - extended water and gas pipeline; 63 - elastic female ferrule; 64 - copper plug; 65 - drain pipe; 66 - elastic drain valve; 71 - frame; 72 - second guide sleeve; 73 - pneumatic clamping device; 74 - middle guide sleeve; 75 - flexible cushion block; 76 - drainage assembly; 77 - integrated box loading and unloading device; 78 - buffer support ring; 79 - movable guide ring; 81 - insulating support; 82 - first fixing frame; 83 - fixing ring; 84 - first pressure sensor. Detailed implementation manners

[0063] Next, the technical solutions of the present invention will be clearly and completely described through specific implementation manners.

[0064] An automatic loading system for an integrated plasma torch of the present invention includes a slewing column 1, a cross arm 2, a ferrule 3, an integrated box 4, a flexible water, electricity and gas pipeline 5, a plasma torch 6, an attitude correction device 8 and a loading rack 7; the specific structure is as Figures 1 to 14As shown in the figure, the rotary column 1 and the loading rack 7 are vertically arranged at a horizontal interval, and a cross arm 2 is horizontally provided at the movable end of the rotary column 1. The tail of the cross arm 2 makes a rotational movement and a vertical up-and-down movement through the rotary column 1, and its head makes a horizontal telescopic movement along its tail and is embedded and clamped with the top of the vertically arranged bushing 3. The tail of the water, electricity and gas flexible pipeline 5 is fixed on the rotary column 1, and the middle part thereof is fixed on the cross arm 2. After the head thereof is bundled through the bushing 3, it is connected to the vertically arranged integrated box 4. The bottom of the bushing 3 and the top of the integrated box 4 form a male-female structure for connection, and the bottom of the integrated box 4 is connected to the vertically arranged plasma torch 6. In the present invention, when the plasma torch 6 is not working, it is placed on the loading rack 7 through the rotational, up-and-down and telescopic movements of the cross arm 2, and when it is working, it is inserted into the furnace mouth through the attitude correction device 8.

[0065] The rotary column 1 of the present invention includes a lower bracket 101, a rotary gear bearing 102, a pinion 103, a lower motor 104, an upper bracket 105, a column 106, a slide rail 107, a first slider 108, a seat plate 109, an upper support 110, a lower support 111, a first lead screw 112, a first motor 113 and a first moving nut 114; as Figure 1 , Figure 3 shown, the upper bracket 105 and the lower bracket 101 are horizontally arranged in parallel at a vertical interval, and a rotary gear bearing 102 is horizontally arranged coaxially therebetween. A lower motor 104 is vertically arranged at an interval on the side of the lower bracket 101 away from the loading rack 7. The output end of the lower motor 104 is arranged upward and is meshed and connected with the rotary gear bearing 102 through the pinion 103. A column 106 is vertically arranged at the middle position of the upper surface of the upper bracket 105. Driven by the lower motor 104, through the meshing cooperation of the pinion 103 and the rotary gear bearing 102, the column 106 rotates horizontally along with the upper bracket 105. Among them, the rotary gear bearing 102 can bear large axial force and radial force;

[0066] As Figure 1 , Figure 3As shown, two slide rails 107 are fixedly arranged vertically and parallelly at intervals in front and back on one side of the column 106, and a seat plate 109 is also arranged vertically and parallelly on the side of the two slide rails 107 away from the column 106, and four first sliders 108 are also arranged in a rectangular shape on the side of the seat plate 109 close to the column 106, and the spacing between two adjacent first sliders 108 in front and back corresponds to the spacing between the two slide rails 107, the seat plate 109 is sleeved on the two slide rails 107 through the first sliders 108, and moves vertically up and down along the slide rails 107, and rotates horizontally with the column 106; an upper support 110 is also fixedly arranged horizontally and vertically on the top of the same side of the column 106 relative to the slide rail 107, and a lower support 110 is also fixedly arranged horizontally on the bottom of the same side relative to the slide rail 107 A lower support 111 is vertically fixed, and the upper support 110 and the lower support 111 are respectively spaced apart on the upper and lower sides of the two slide rails 107, and a first screw rod 112 is also vertically provided on the side away from the seat plate 109 between the two. The first screw rod 112 is spaced apart from the seat plate 109, and its upper and lower ends are respectively rotatably connected with the upper support 110 and the lower support 111, and a first movable nut 114 is also threaded on the first screw rod 112, and the upper end of the first screw rod 112 extends vertically upward out of the upper surface of the upper support 110, and is linked to the output end of the vertically arranged first motor 113; under the drive of the first motor 113, the first movable nut 114 of the present invention moves vertically up and down along the first screw rod 112, and rotates horizontally with the column 106.

[0067] The cross arm 2 of the present invention includes an outer frame 21, an inner frame 22, a first guide rail 23, a second slider 24, a second motor 25, a fixing block 26, a second screw rod 27 and a second movable nut 28; Figure 1 , Figure 4 As shown, the tail of the horizontally arranged outer frame 21 is vertically fixedly connected to a side of the seat plate 109 away from the column 106, and its front side is fixedly connected to the first movable nut 114. Driven by the first motor 113, the outer frame 21 moves vertically up and down, and rotates horizontally with the column 106; an inner frame 22 is also sleeved with the same axis horizontally and spaced inside the outer frame 21 along its length direction, and first guide rails 23 are also horizontally arranged on the upper and lower sides between the outer frame 21 and the inner frame 22. The two first guide rails 23 are respectively fixedly connected to the upper and lower inner surfaces of the outer frame 21 along the length direction of the outer frame 21, and two second sliders 24 are fixedly arranged at intervals on the upper and lower outer surfaces of the tail of the inner frame 22 relative to the corresponding positions of the first guide rails 23. Through the cooperation of the second slider 24 and the first guide rail 23, the inner frame 22 performs horizontal telescopic movement along the outer frame 21, and its head extends horizontally and vertically out of the head of the outer frame 21;

[0068] like Figure 1 , Figure 4As shown in the figure, a second motor 25 and a fixing block 26 are fixedly arranged at intervals on the left and right at the middle position of the lower inner surface of the outer frame 21, and the second motor 25 and the fixing block 26 do not interfere with the horizontal telescopic movement of the inner frame 22 respectively; a second lead screw 27 is horizontally arranged at the middle position between the second motor 25 and the fixing block 26, and the second lead screw 27 is horizontally arranged along the length direction of the outer frame 21. One end of the second lead screw 27 is linked with the output end of the second motor 25, and the other end is rotatably connected with the fixing block 26; a second movable nut 28 is also screwed on the second lead screw 27, and the second movable nut 28 is fixedly connected with the lower outer surface of the tail of the inner frame 22. Driven by the second motor 25, the inner frame 22 makes a horizontal telescopic movement along with the second movable nut 28 in the present invention.

[0069] The ferrule 3 of the present invention includes a first guide sleeve 301, an insulating bushing 302, a bolt assembly 303, an insulating plate 304, a flange plate 305, a rib plate 306, a clamping piece 307, an upper stop block 308, a lower stop block 309, a guide rod 310 and a spring; as Figure 1 、 Figure 5 shown, the top of the vertically arranged first guide sleeve 301 is fixedly sleeved with the head of the inner frame 22 in an embedded manner, and its bottom vertically extends downward from the lower outer surface of the head of the inner frame 22; a flange plate is horizontally fixed at the bottom of the first guide sleeve 301, and through the cooperation of the bolt assembly 303 and the insulating bushing 302, the flange plate is screwed and fixed with the upper surface of the horizontally arranged flange plate 305, and an insulating plate 304 matching therewith is horizontally attached between the flange plate and the flange plate 305; four clamping pieces 307 are sequentially arranged at intervals along the circumferential direction on the lower surface of the flange plate 305. Each clamping piece 307 is vertically arranged, and its top is fixedly connected with the lower surface of the flange plate 305 through the corresponding rib plate 306. Each clamping piece 307 is made of spring steel, and its bottom is in an inverted hook shape and is connected with the top of the integrated box 4 to form a male-female structure, so that the integrated box 4 can be quickly grabbed; combined with the spring structure, the present invention has a permanent self-compression function to ensure the reliability of grabbing and fixing the integrated box 4;

[0070] As Figure 1 、 Figure 5 shown, upper stop blocks 308 are respectively arranged on the lower surfaces of each rib plate 306, and lower stop blocks 309 are respectively arranged at positions corresponding to the upper stop blocks 308 on the outer bottom sides of each clamping piece 307. Guide rods 310 are vertically arranged between each upper stop block 308 and the corresponding lower stop block 309. Each guide rod 310 is arranged at an interval from the corresponding clamping piece 307, and a first spring 311 is sleeved on each of them; the bottom of each lower stop block 309 is in an inverted V-shaped groove structure and is connected with the top of the integrated box 4 to form a male-female structure, so that the integrated box 4 can be quickly disassembled.

[0071] The water, electricity and gas flexible pipeline 5 of the present invention includes a ferrule male head 51, an insulating water and gas hose 52, a pipeline fixing seat 53, a solenoid valve group 54, a bracket 55, a cable 56 and a copper nose 57; as Figure 1 , Figure 8 shown, the front end of the insulating water and gas hose 52 is provided with three paths, and ferrule male heads 51 are respectively provided and integrated in the ferrule 3; a solenoid valve group 54 is provided at the middle position of the insulating water and gas hose 52, and the middle position of the insulating water and gas hose 52 and the cable 56 are respectively fixed on the outer surface of the outer frame 21 of the cross arm 2 through the pipeline fixing seat 53; a copper nose 57 is provided at the head of the cable 56 and integrated in the ferrule 3; the latter half parts of the insulating water and gas hose 52 and the cable 56 are placed in the bracket 55, and one end of the bracket 55 is fixed on the cross arm 2 and the other end is fixed on the column 106; wherein, the bracket 55 is a flexible structure, so as to be able to move vertically up and down following the cross arm 2. By adopting the structure of the insulating water and gas hose 52, the insulating environment required for the operation of the plasma torch 6 is effectively guaranteed.

[0072] The integrated box 4 of the present invention highly integrates the water, electricity and gas flexible pipeline 5 and the plasma torch 6, and it includes a clamping head 401, a buffer pad 402, a limit ring 403, an integrated box outer frame 404, an upper insulating guide frame 405, a lower insulating fixing frame 406, a fixed water and gas pipeline 407, a displacement sensing device 408, a fixed copper plate 409, a ferrule assembly 410, a bottom locking device 411; as Figure 1 , Figure 6 , Figure 7 shown, the top of the clamping head 401 is in an inverted hook shape and corresponds to the inverted hook shape at the bottom of each clamping piece 307. The bottom of each clamping piece 307 and the top of the clamping head 401 of the integrated box 4 form a male-female structure, and a limit ring 403 is coaxially sleeved on the clamping head 401 at a position close to the middle, and a buffer pad 402 matching therewith is coaxially provided on the upper surface of the limit ring 403; an upper insulating guide frame 405 is coaxially sleeved inside the clamping head 401, and the bottom of the clamping head 401 is connected to the top of the integrated box outer frame 404; an L-shaped bracket is provided on the outer wall surface of the integrated box outer frame 404, and a lower insulating fixing frame 406 is coaxially sleeved at a position above the middle inside it. The lower insulating fixing frame 406 adopts a three-layer composite structure, and the fixed water and gas pipeline 407 and the fixed copper plate 409 are arranged in a circumferential array without interfering with each other. After the outer surfaces are insulated with heat shrinkable tubes, they respectively pass through the upper insulating guide frame 405 and are fixed on the lower insulating fixing frame 406;

[0073] Among them, the fixed water and gas pipeline 407 includes a water inlet pipe, a water outlet pipe, an air pipe, an upper ferrule female head, a lower ferrule male head and a corrugated hose, as Figure 1 , Figure 6 , Figure 7As shown, the water inlet pipe is a rigid joint, and a displacement sensing device 408 is also provided at its bottom. The up and down movement of the cross arm 2 is adjusted by detecting the position of the plasma torch 6. The upper ends of the water inlet pipe, the water outlet pipe, and the gas pipe are respectively connected to the corresponding ferrule male heads of the water, electricity, and gas flexible pipeline 5 through upper ferrule female heads. Through the synchronous docking of the ferrule male head 51 and the upper ferrule female head, the three-point over-limit is avoided, and quick disassembly can be achieved. Lower ferrule male heads are respectively provided at the lower ends of the water inlet pipe, the water outlet pipe, and the gas pipe, and corrugated hoses are respectively provided between the water outlet pipe, the gas pipe, and the lower ferrule male head.

[0074] As Figure 1 , Figure 6 , Figure 7 As shown, the upper parts of the two fixed copper plates 409 are respectively connected to the corresponding copper terminals 57 through bolt assemblies, and elastic locking structures are respectively provided at their lower parts for quick docking and separation. Among them, the elastic locking structure includes a main fin, a sub-fin, a bolt assembly, a second spring, and a locking bolt. Both the main fin and the sub-fin are V-shaped structures, and a smooth concave structure is provided at the inner side of the bottom end for clamping the conductive head, and a polytetrafluoroethylene buffer block is provided at the bottom. The polytetrafluoroethylene buffer block is fixedly embedded on the fin through screws, and a second spring is provided at the V-shaped structure of the fin. The second spring is fixed inside the fin through a locking bolt. By adopting the elastic locking structure in the present invention, quick docking and separation can be achieved, an inlaid structure is provided at the conductive end, effectively ensuring the conductivity, and the polytetrafluoroethylene buffer block provided at the bottom of the fin can effectively prevent the conductive surface of the copper plug 64 from being worn, ensuring the conductive performance.

[0075] As Figure 1 , Figure 6 , Figure 7 As shown, the bushing assembly 410 is arranged at the middle position inside the integrated box 4, and it includes an insulating pressing plate, a second guide rail, a third slider, and a cylinder. A plurality of through holes are opened on the insulating pressing plate according to the positions of the water, electricity, and gas pipelines and the second guide rail. The bottom of the insulating pressing plate is connected to the third slider, the third slider is connected to the second guide rail, and the second guide rail is fixed to the inner wall of the integrated box 4. The upper part of the insulating pressing plate is connected to the cylinder, and the cylinder is fixed to the inner wall of the integrated box 4. Four groups of cylinders, second guide rails, and third sliders are provided and arranged in a circumferential array. In the present invention, the insulating pressing plate of the bushing assembly 410 is guided and fixed through four groups of second guide rails, third sliders, and four groups of cylinders, which can effectively ensure the flatness of the insulating pressing plate and the smoothness of the movement.

[0076] A bottom locking device 411 is provided on the inner bottom surface of the integrated box 4. The bottom locking device 411 is arranged at the bottom of the integrated box 4 and includes a cylinder support, a cylinder, a crank, a locking pin, and an insulating guiding and clamping device. As Figure 1 , Figure 6 , Figure 7As shown in the figure, the cylinder support is arranged inside the integrated box 4, with four groups arrayed circumferentially. A cylinder is arranged on the cylinder support, the cylinder is connected to a crank, the crank is connected to a locking pin. The outer ring of the insulating guide clamping device is an L-shaped guide ring, and the top angle of the L-shaped guide ring has a large chamfer structure. Four groups of pin holes are arrayed around the L-shaped ring, and the positions of the pin holes are consistent with the positions of the locking pins. The inner ring is an insulating clamping ring, and the insulating clamping ring and the L-shaped guide ring are connected and fastened by bolts. The insulating clamping ring is arranged in two semi-circular structures and is connected and fastened radially by a bolt assembly 303. The outer frame limiting block is arranged at the bottom side of the outer frame 404 of the integrated box. In the present invention, the bottom locking device 411 has functions of insulation (the integrated box wall and the plasma torch 6 are insulated through the insulating clamping ring of the insulating guide clamping device), guiding (the L-shaped guide ring and the inner wall of the integrated box 4 form an inner and outer cylinder structure, with guiding function), clamping (the two semi-circular structures of the insulating clamping ring are connected radially by a bolt assembly to realize the clamping function of the plasma torch 6), and pre-tightening (four groups of cylinders push the crank and the locking pin to press inward, and the locking pin applies an upward force to the insulating guide clamping device through the bevel structure of the pin head, so as to realize pre-tightening), ensuring the reliability of the connection between the integrated box 4 and the plasma torch 6.

[0077] The plasma torch 6 of the present invention includes a torch body 61, an extended water and gas pipeline 62, an elastic ferrule female head 63, a copper plug 64, a drain pipe 65, and an elastic drain valve 66; as Figure 1 , Figure 9 , Figure 10 shown, three extended water and gas pipelines 62 are vertically and sequentially arranged at the tail of the torch body 61 at intervals, and an elastic ferrule female head 63 is respectively arranged at the upper end of each extended water and gas pipeline 62, and is respectively connected to the corresponding lower ferrule male head of the water inlet pipe, the water outlet pipe, and the gas pipe through the elastic ferrule female head 63; a drain pipe 65 is also arranged at the lower end of the corresponding extended water and gas pipeline 62 connected to the water inlet pipe, and an elastic drain valve 66 is arranged at the lower end of the drain pipe 65; the elastic drain valve 66 includes a valve body, a third spring, a retaining ring, a contact, and a sealing ring, and a retaining ring, a second spring, a contact, and a sealing ring are sequentially arranged from top to bottom inside the valve body; by setting the elastic drain valve 66, rapid pressure relief and drainage can be realized, avoiding the splashing of pressurized water when the water pipe is detached, which affects the insulating environment inside the integrated box 4;

[0078] As Figure 1 , Figure 9 , Figure 10As shown, two copper plugs 64 are arranged at a 90° stagger from the extended water pipe 62, and are respectively arranged in an L shape with the tail of the torch body 61. The two copper plugs 64 are set with positive and negative poles, and one pole is fixed on the corresponding extended water pipe 62 connected to the water inlet pipe, and the other pole is fixed on the outer shell of the torch body 61. The heads of the two copper plugs 64 are both smooth pointed structures, and the conductive surfaces of their heads are set with smooth convex surfaces, and respectively form an inlaid structure with the lower elastic locking structures of the corresponding fixed copper plates 409, so as to realize the quick connection and separation of water, electricity and gas.

[0079] The loading rack 7 of the present invention integrates the loading functions of the plasma torch 6 and the integrated box 4, and it includes a frame 71, a second guide sleeve 72, an attitude correction device 8, a pneumatic clamping device 73, a middle guide sleeve 74, a flexible cushion block 75, a drainage assembly 76, an integrated box loading and unloading device 77, a buffer support ring 78 and a movable guide ring 79; as Figure 1 , Figure 11 shown, two second guide sleeves 72 are also arranged at left and right intervals on the inner top surface of the frame 71, and the loading of the corresponding plasma torch 6 is preliminarily guided through the second guide sleeves 72; an attitude correction device 8 is also arranged at the bottom of each second guide sleeve 72, and the attitude correction device 8 is used to avoid the offloading problem of the corresponding plasma torch 6 during loading; a fixing plate matching with it is also horizontally arranged at a position slightly above the middle inside the frame 71, and two arc structures matching with the pneumatic clamping device 73 are embedded at left and right intervals on the fixing plate. Each pneumatic clamping device 73 is respectively clamped with the fixing plate through the corresponding arc structure, and an arc-shaped polytetrafluoroethylene cushion layer is also arranged at the joint of the two. Through the mutual cooperation of the pneumatic clamping device 73 and the bottom locking device 411 of the integrated box 4, the plasma torch 6 is loaded;

[0080] As Figure 1 , Figure 11 shown, two middle guide sleeves 74 are also arranged at left and right intervals at the middle position inside the frame 71, and two flexible cushion blocks 75 are also arranged at left and right intervals on the inner bottom surface of the frame 71. By setting the flexible cushion blocks 75, the loading of the plasma torch 6 is effectively buffered, ensuring the safety of the structure of the plasma torch 6. Among them, each of the second guide sleeves 72, the attitude correction device 8, the pneumatic clamping device 73, the middle guide sleeve 74 and the flexible cushion block 75 are on the same central line along the vertical direction; a drainage assembly 76 is arranged on one side of the frame 71. The drainage assembly 76 includes a water tank, a hydrophobic head and a connecting hose. The hydrophobic head is a hollow pipe, and its upper end extends into the frame 71 and extends out from the top of the frame 71. A convex surface is arranged inside the hydrophobic head, and its lower end is connected to the water tank arranged at the bottom on one side of the frame 71 through a connecting hose. A top pressure sensor is arranged on the upper part of the frame 71, and the sensing head of the top pressure sensor is arranged upward;

[0081] As Figure 1 , Figure 11 shown, an integrated container loading and unloading device 77 is provided at a position slightly above the other side of the frame 71, and a buffer support ring 78 is provided at the bottom of the integrated container loading and unloading device 77; a movable guide ring 79 is provided at the top of the integrated container loading and unloading device 77. The movable guide ring 79 is composed of two semi - circles and is connected by hinges in the 180° direction. Both side hinges are connected by pin shafts, where one side pin shaft is fixed and the other side pin shaft is movable; the movable guide ring 79 of the integrated container loading and unloading device 77 is connected to the inverted V - shaped groove structure of the lower stop block 309 of the ferrule 3 to form a male - female structure. When pressure is applied downward, the rapid unloading of the integrated container 4 can be realized. The buffer support ring 78 at the bottom of the integrated container loading and unloading device 77 effectively buffers the loading of the integrated container 4, ensuring the safety of the structure of the integrated container 4.

[0082] Each attitude correction device 8 of the present invention includes an insulating bracket 81, a first fixing bracket 82, a fixing ring 83, and a first pressure sensor 84; as Figures 11 to 13 shown, each insulating bracket 81 is arranged on the top of the furnace body, and a first fixing bracket 82 is also fixedly provided on its top; each first fixing bracket 82 is respectively connected to the corresponding fixing ring 83, and the center of each fixing ring 83 is consistent with the center of the furnace body torch interface; four groups of first pressure sensors 84 are also provided on each fixing ring 83, and the four groups of first pressure sensors 84 are arranged in a straight row along the circumferential direction. The attitude correction device 8 feeds back and adjusts the position of the plasma torch 6 through the four groups of first pressure sensors 84, which can effectively avoid the off - loading problem of the plasma torch 6 during loading. The provided insulating structure insulates the plasma torch 6 from the furnace, ensuring the insulating environment.

[0083] A method for using the plasma torch integrated automatic loading system of the present invention includes the following steps:

[0084] (1) Connect the integrated container 4 to the plasma torch 6

[0085] (1.1) First, place the plasma torch 6 in the loading rack 7, and the pneumatic clamping device 73 of the loading rack 7 is in the clamping state;

[0086] (1.2) Then, pre - install the insulating guide clamping device at the bottom of the integrated container 4 on the torch body 61 of the plasma torch 6;

[0087] (1.3) The cylinder of the pressing sleeve assembly 410 pushes the insulating pressing plate to the lower limit position of the cylinder;

[0088] (1.4) Driven by the first motor 113, the cross - arm 2 descends vertically, so that the bottom locking device 411 of the integrated container 4 is connected to the insulating guide clamping device for guiding;

[0089] (1.5) The cross arm 2 continues to descend vertically. When the displacement sensing device 408 touches the plasma torch 6, the cross arm 2 stops descending.

[0090] (1.6) The cylinder of the bushing assembly 410 drives the insulating pressing plate to the upper limit position of the cylinder.

[0091] (1.7) The cylinder of the bottom locking device 411 operates until the cylinder reaches the forward limit position.

[0092] (1.8) The cylinder of the pneumatic clamping device 73 of the loading rack 7 disengages.

[0093] (1.9) Then, driven by the first motor 113, the cross arm 2 moves vertically upward to the upper limit position.

[0094] (1.10) The solenoid valve group 54 of the water, electricity, and gas flexible pipeline 5 is opened.

[0095] (1.11) Driven by the lower motor 104, the column 106 rotates to above the furnace opening.

[0096] (1.12) Then, driven by the first motor 113, the cross arm 2 descends vertically. After inserting the plasma torch 6 into the attitude correction device 8, the cross arm 2 stops descending. The position of the plasma torch 6 is finely adjusted through the feedback of the four first pressure sensors 84 until it is concentric with the attitude correction device 8.

[0097] (1.13) Then the cross arm 2 continues to descend vertically until it is inserted into the furnace.

[0098] (2) The integrated box 4 removes the plasma torch 6

[0099] (2.1) Driven by the first motor 113, the cross arm 2 rises vertically away from the furnace opening until it stops rising at the upper limit position of the cross arm 2.

[0100] (2.2) Driven by the lower motor 104, the cross arm 2 rotates with the column 106 to above the loading rack 7.

[0101] (2.3) The solenoid valve group 54 of the water, electricity, and gas flexible pipeline 5 is closed.

[0102] (2.4) Then, driven by the first motor 113, the cross arm 2 descends vertically, driving the plasma torch 6 to insert into the second guide sleeve 72 of the loading rack 7. After passing through the attitude correction device 8, it stops descending. The position of the plasma torch 6 is finely adjusted through the feedback of the four first pressure sensors 84 until it is concentric with the attitude correction device 8.

[0103] (2.5) Then the cross arm 2 continues to descend vertically. When the limit block of the outer frame 21 at the bottom of the integrated box 4 touches the top pressure sensor of the loading rack 7, the cross arm 2 stops descending.

[0104] (2.6) Then the cross arm 2 descends by 5 mm, and the elastic drain valve 66 of the plasma torch 6 is opened passively and remains open for 1 minute;

[0105] (2.7) Then the cross arm 2 rises vertically until the pressure of the top pressure sensor of the loading rack 7 disappears, and the cross arm 2 stops rising;

[0106] (2.8) The cylinder of the pneumatic clamping device 73 of the loading rack 7 closes;

[0107] (2.9) The cylinder of the bushing assembly 410 of the integrated box 4 drives the insulating pressing plate to the lower limit of the cylinder;

[0108] (2.10) The cylinder of the bottom locking device 411 of the integrated box 4 acts until the cylinder retracts to the limit;

[0109] (2.11) Then, driven by the first motor 113, the cross arm 2 rises vertically to the upper limit.

[0110] The beneficial effects of the present invention:

[0111] (1) The whole process of the present invention is automated, and the replacement process of the plasma torch 6 can be controlled within 3 minutes, which solves the problems of safety, long time, cumbersome process and easy negligence leading to failures in manual operation, greatly improves the operation efficiency of the project, and avoids the waste of energy;

[0112] (2) The present invention has a high degree of system integration, and occupies a small floor area and space;

[0113] (3) The materials used in the system of the present invention are all relatively common, with high material reliability, low one-time input cost, low maintenance cost, and easy to operate;

[0114] (4) The present invention adopts multiple insulation measures, which strengthens the insulation performance of the overall structure, effectively guarantees the insulation environment required for the operation of the plasma torch 6, and greatly increases the safety of the system.

[0115] The above-described embodiments are only described as the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary engineering and technical personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the technical requirements.

Claims

1. An integrated automatic loading system for a plasma torch, characterized in that: It includes a rotary column, a cross arm, a ferrule, an integrated box, water, electricity and gas flexible pipelines, a plasma torch, an attitude correction device and a loading rack; the rotary column and the loading rack are vertically arranged at a left-right interval, and a cross arm is horizontally arranged at the movable end of the rotary column. The tail of the cross arm makes a rotary motion and a vertical up-and-down motion through the rotary column, and its head makes a horizontal telescopic action along its tail and is embedded and clamped with the top of the vertically arranged ferrule; the tail of the water, electricity and gas flexible pipelines is fixed on the rotary column, and its middle part is fixed on the cross arm. After its head is bundled through the ferrule, it is connected to the vertically arranged integrated box; the bottom of the ferrule and the top of the integrated box form a male-female structure for connection, and the bottom of the integrated box is connected to the vertically arranged plasma torch; when the plasma torch is not working, it is placed on the loading rack through the rotation, up-and-down and telescopic actions of the cross arm, and when it is working, it is inserted into the furnace mouth through the attitude correction device. The rotary column includes a lower bracket, a rotary gear bearing, a pinion, a lower motor, an upper bracket, a column, a slide rail, a first slider, a seat plate, an upper support, a lower support, a first lead screw, a first motor and a first movable nut; the upper bracket and the lower bracket are horizontally arranged in parallel at an up-and-down interval, and a rotary gear bearing is horizontally arranged coaxially between them. A lower motor is vertically arranged at intervals on the side of the lower bracket away from the loading rack. The output end of the lower motor is arranged upward and is meshed and connected with the rotary gear bearing through the pinion; a column is vertically arranged at the middle position of the upper surface of the upper bracket. Driven by the lower motor, through the meshing cooperation of the pinion and the rotary gear bearing, the column rotates horizontally along with the upper bracket; two slide rails are vertically and parallelly fixed at intervals on one side surface of the column, and seat plates are vertically and parallelly arranged at intervals on the side surface of the two slide rails away from the column. Four first sliders are arranged in a rectangle on the side surface of the seat plate close to the column, and the distance between two adjacent first sliders in the front and back is corresponding to the distance between the two slide rails. The seat plate is sleeved on the two slide rails through the first sliders and makes a vertical up-and-down motion along the slide rails and rotates horizontally along with the column; an upper support is horizontally and perpendicularly fixed at the top of the same side surface of the column relative to the slide rail, and a lower support is horizontally and perpendicularly fixed at the bottom of the same side surface of the column relative to the slide rail. The upper support and the lower support are respectively arranged at intervals on the upper and lower sides of the two slide rails, and a first lead screw is vertically arranged on the side away from the seat plate between them. The first lead screw is arranged at an interval with the seat plate, and its upper and lower ends are respectively rotatably connected with the upper support and the lower support. A first movable nut is also screwed on the first lead screw, and the upper end of the first lead screw vertically extends out of the upper surface of the upper support and is linked with the output end of the vertically arranged first motor; driven by the first motor, the first movable nut makes a vertical up-and-down motion along the first lead screw and rotates horizontally along with the column.

2. The integrated automatic loading system for a plasma torch according to claim 1, characterized in that: The cross arm includes an outer frame, an inner frame, a first guide rail, a second slider, a second motor, a fixed block, a second lead screw, and a second movable nut; the tail of the horizontally arranged outer frame is vertically and fixedly connected to the side surface of the seat plate away from the column, and its front side surface is fixedly connected to the first movable nut. Driven by the first motor, the outer frame moves vertically up and down and rotates horizontally along with the column; inside the outer frame, an inner frame is coaxially and horizontally sleeved at intervals along its length direction, and first guide rails are horizontally arranged on the upper and lower sides between the outer frame and the inner frame. The two first guide rails are fixedly connected to the upper and lower inner surfaces of the outer frame along the length direction of the outer frame, and two second sliders are respectively fixedly arranged at left and right intervals on the upper and lower outer surfaces of the tail of the inner frame at positions corresponding to the first guide rails. Through the cooperation of the second sliders and the first guide rails, the inner frame makes a horizontal telescopic movement along the outer frame, and its head extends horizontally and perpendicularly out of the head of the outer frame; at the middle position of the lower inner surface of the outer frame, a second motor and a fixed block are fixedly arranged at left and right intervals, and the second motor and the fixed block do not interfere with the horizontal telescopic movement of the inner frame respectively; a second lead screw is horizontally arranged at the middle position between the second motor and the fixed block, and the second lead screw is horizontally arranged along the length direction of the outer frame. One end of the second lead screw is connected to the output end of the second motor in a linkage manner, and the other end is rotatably connected to the fixed block; a second movable nut is also screwed on the second lead screw, and the second movable nut is fixedly connected to the lower outer surface of the tail of the inner frame. Driven by the second motor, the inner frame makes a horizontal telescopic movement along with the second movable nut.

3. The integrated automatic loading system for a plasma torch according to claim 2, characterized in that: The ferrule includes a first guide sleeve, an insulating screw sleeve, a bolt assembly, an insulating plate, a flange plate, a rib plate, a clamping piece, an upper stop block, a lower stop block, a guide rod and a spring; the top of the vertically arranged first guide sleeve is fixedly sleeved with the head of the inner frame in an embedded manner, and its bottom vertically extends downward from the outer surface of the head of the inner frame; a flange plate is horizontally fixed at the bottom of the first guide sleeve, and through the cooperation of the bolt assembly and the insulating screw sleeve, the flange plate is screwed and fixed with the upper surface of the horizontally arranged flange plate, and an insulating plate matching therewith is horizontally attached between the flange plate and the flange plate; four clamping pieces are sequentially arranged at intervals along the circumferential direction on the lower surface of the flange plate, each clamping piece is vertically arranged, and its top is fixedly connected with the lower surface of the flange plate through a corresponding rib plate, each clamping piece is made of spring steel, and its bottom is in an inverted hook shape and is connected with the top of the integrated box to form a male-female structure; an upper stop block is respectively arranged on the lower surface of each rib plate, and a lower stop block is respectively arranged at a position relative to the upper stop block on the outer bottom of each clamping piece, a guide rod is vertically arranged between each upper stop block and the corresponding lower stop block, each guide rod is arranged at an interval from the corresponding clamping piece, and a first spring is respectively sleeved on it; the bottom of each lower stop block is in an inverted V-shaped groove structure and is connected with the top of the integrated box to form a male-female structure.

4. The integrated automatic loading system for a plasma torch according to claim 3, characterized in that: The water, electricity and gas flexible pipeline includes a ferrule male head, an insulating water and gas hose, a pipeline fixing seat, a solenoid valve group, a bracket, a cable and a copper nose; the front end of the insulating water and gas hose is provided with three paths and is respectively provided with a ferrule male head and is integrated in the ferrule; a solenoid valve group is arranged at the middle position of the insulating water and gas hose, and the middle position of the insulating water and gas hose and the cable are respectively fixed on the outer surface of the outer frame of the cross arm through the pipeline fixing seat; a copper nose is arranged at the head of the cable and is integrated in the ferrule; the latter half parts of the insulating water and gas hose and the cable are placed in the bracket, and one end of the bracket is fixed on the cross arm and the other end is fixed on the column; the bracket is a flexible structure and can move vertically up and down along with the cross arm.

5. The integrated automatic loading system for a plasma torch according to claim 4, characterized in that: The integrated box highly integrates the water, electricity and soft pipelines as well as the plasma torch, and it includes a clamping head, a buffer pad, a limit ring, an integrated box outer frame, an upper insulation guide frame, a lower insulation fixing frame, a fixed water and gas pipeline, a displacement sensing device, a fixed copper plate, a compression sleeve assembly, and a bottom locking device; the top of the clamping head is in an inverted hook shape, corresponding to the inverted hook shape at the bottom of each clamping piece, the bottom of each clamping piece and the top of the clamping head of the integrated box form a male-female structure, and a limit ring is coaxially sleeved at a position close to the middle on the clamping head, and a buffer pad matching it is coaxially arranged on the upper surface of the limit ring; an upper insulation guide frame is coaxially sleeved inside the clamping head, and the bottom of the clamping head is connected to the top of the integrated box outer frame; an L-shaped bracket is arranged on the outer wall surface of the integrated box outer frame, and a lower insulation fixing frame is coaxially sleeved at a position slightly above the middle inside it. The lower insulation fixing frame adopts a three-layer composite structure, and the fixed water and gas pipeline and the fixed copper plate are arranged in a circumferential array without interfering with each other. After the outer surfaces are insulated with heat shrinkable tubes, they respectively pass through the upper insulation guide frame and are fixed on the lower insulation fixing frame; The fixed water and gas pipeline includes a water inlet pipe, a water outlet pipe, a gas pipe, an upper ferrule female head, a lower ferrule male head, and a corrugated hose. The water inlet pipe is a rigid joint, and a displacement sensing device is further provided at its bottom. The upper ends of the water inlet pipe, the water outlet pipe, and the gas pipe are respectively connected to the corresponding ferrule male heads of the water, electricity, and gas flexible pipeline through the upper ferrule female heads. Lower ferrule male heads are respectively provided at the lower ends of the water inlet pipe, the water outlet pipe, and the gas pipe, and corrugated hoses are respectively provided between the water outlet pipe, the gas pipe, and the lower ferrule male heads. The upper parts of the two fixed copper plates are respectively connected to the corresponding copper terminals through bolt assemblies, and elastic locking structures are respectively provided at their lower parts for quick docking and separation. The ferrule assembly is arranged at the middle position inside the integrated box, and it includes an insulating pressing plate, a second guide rail, a third slider, and a cylinder. A plurality of through holes are opened on the insulating pressing plate according to the positions of the water, electricity, and gas pipelines and the second guide rail. The bottom of the insulating pressing plate is connected to the third slider, the third slider is connected to the second guide rail, and the second guide rail is fixed on the inner wall of the integrated box. The upper part of the insulating pressing plate is connected to the cylinder, and the cylinder is fixed on the inner wall of the integrated box. Four groups of the cylinder, the second guide rail, and the third slider are provided and arranged in an array along the circumferential direction. A bottom locking device is provided on the inner bottom surface of the integrated box. The bottom locking device is arranged at the bottom of the integrated box and includes a cylinder support, a cylinder, a crank, a locking pin, and an insulating guiding and clamping device. The cylinder support is arranged inside the integrated box and is arrayed in four groups along the circumferential direction. The cylinder is arranged on the cylinder support, the cylinder is connected to the crank, the crank is connected to the locking pin. The outer ring of the insulating guiding and clamping device is an L-shaped guiding ring, and the top angle of the L-shaped guiding ring is provided with a large chamfer structure. Four groups of pin holes are arrayed around the L-shaped ring, and the positions of the pin holes are consistent with the positions of the locking pins. The inner ring is an insulating clamping ring, and the insulating clamping ring is fixedly connected to the L-shaped guiding ring through bolts. The insulating clamping ring is arranged as two semi-circular structures and is radially connected and fastened through bolt assemblies. The outer frame limiting block is arranged at the bottom side of the outer frame of the integrated box. The bottom locking devices all have the functions of insulation, guiding, clamping, and pre-tightening, and ensure the reliability of the connection between the integrated box and the plasma torch.

6. The integrated automatic loading system for a plasma torch according to claim 5, characterized in that: The plasma torch comprises a torch body, an extended water and gas pipeline, an elastic ferrule female head, a copper plug, a drain pipe and an elastic drain valve; three extended water and gas pipelines are vertically spaced in sequence at the tail of the torch body, and an elastic ferrule female head is respectively provided at the upper end of each of the extended water and gas pipelines, and is respectively connected to the corresponding lower ferrule male heads of the water inlet pipe, the water outlet pipe and the gas pipe through the elastic ferrule female head; a drain pipe is also provided at the lower end of the corresponding extended water and gas pipeline connected to the water inlet pipe, and a drain valve is provided at the drain pipe. An elastic drain valve is provided at the lower end; the two copper plugs are staggered 90° from the extended water and gas pipelines, and are respectively arranged in an L shape with the tail of the torch body, and the two copper plugs are divided into positive and negative poles, and one pole is fixed on the corresponding extended water and gas pipeline connected to the water inlet pipe, and the other pole is fixed on the outer shell of the torch body; the heads of the two copper plugs are both smooth pointed structures, and the conductive surfaces of the heads are arranged with smooth convex surfaces, and respectively form an inlaid structure with the corresponding lower elastic locking structures of the fixed copper plates.

7. The integrated automatic loading system for a plasma torch according to claim 6, characterized in that: The loading rack integrates the functions of plasma torch loading and integrated box loading, and includes a frame, a second guide sleeve, a posture correction device, a pneumatic clamping device, a middle guide sleeve, a flexible pad, a drainage assembly, an integrated box loading and unloading device, a buffer support ring and a movable guide ring; two second guide sleeves are also arranged at intervals on the left and right sides of the inner top surface of the frame, and the second guide sleeves are used to preliminarily guide the loading of the corresponding plasma torch; a posture correction device is also provided at the bottom of each of the second guide sleeves, and the posture correction device is used to avoid the problem of overloading of the corresponding plasma torch during loading; a matching fixing plate is also horizontally provided at the upper middle position inside the frame, and two arc structures matching the pneumatic clamping device are embedded at intervals on the left and right sides of the fixing plate, each of the pneumatic clamping devices is clamped with the fixing plate through the corresponding arc structure, and an arc-shaped polytetrafluoroethylene cushion layer is also provided at the junction of the two, and the plasma torch is corrected by the mutual cooperation between the pneumatic clamping device and the bottom locking device of the integrated box. The sub-body torch is loaded; two middle guide sleeves are arranged at intervals on the left and right at the inner middle position of the frame, and two flexible pads are arranged at intervals on the left and right at the inner bottom surface of the frame, each of the second guide sleeves, posture correction device, pneumatic clamping device, middle guide sleeve and flexible pad respectively maintain the same center line in the vertical direction; a drainage assembly is provided on one side of the frame, and a top pressure sensor is provided on the upper part thereof, and the sensing head of the top pressure sensor is arranged upward; an integrated box loading and unloading device is provided at the upper position of the other side of the frame, and a buffer support ring is provided at the bottom of the integrated box loading and unloading device; a movable guide ring is provided on the top of the integrated box loading and unloading device, the movable guide ring consists of two semicircles and is connected by a hinge in the 180° direction, and the hinges on both sides are connected by pins, one side of the pin is fixed, and the other side of the pin is movable; the movable guide ring of the integrated box loading and unloading device is connected with the inverted V-groove structure of the lower stopper of the ferrule to form a male-female structure.

8. The integrated automatic loading system for a plasma torch according to claim 7, characterized in that: Each of the attitude correction devices includes an insulating bracket, a first fixing bracket, a fixing ring, and a first pressure sensor; each of the insulating brackets is arranged on the top of the furnace body, and a first fixing bracket is fixedly arranged on its top; each of the first fixing brackets is respectively connected to the corresponding fixing ring, and the center of each fixing ring is consistent with the center of the furnace body torch interface; four groups of first pressure sensors are also arranged on each fixing ring, and the four groups of first pressure sensors are arranged in an integral column along the circumferential direction.

9. The method of using the integrated automatic loading system for a plasma torch according to claim 8, characterized in that It includes the following steps: (1) The integrated box is connected to the plasma torch (1.1) First, place the plasma torch in the loading rack, and the pneumatic clamping device of the loading rack is in the clamping state; (1.2) Then, pre-install the insulating guiding and clamping device at the bottom of the integrated box on the torch body of the plasma torch; (1.3) The cylinder of the bushing assembly pushes the insulating pressing plate to the lower limit position of the cylinder; (1.4) Driven by the first motor, the cross arm descends vertically, so that the bottom locking device of the integrated box is connected to the insulating guiding and clamping device for guiding; (1.5) The cross arm continues to descend vertically. When the displacement sensing device touches the plasma torch, the cross arm stops descending; (1.6) The cylinder of the bushing assembly drives the insulating pressing plate to the upper limit of the cylinder; (1.7) The cylinder of the bottom locking device acts until the cylinder advances to the limit; (1.8) The cylinder of the pneumatic clamping device of the loading rack separates; (1.9) Then, driven by the first motor, the cross arm ascends vertically to the upper limit; (1.10) The solenoid valve group of the water, electricity, and gas flexible pipeline is opened; (1.11) Driven by the lower motor, the column rotates above the furnace opening; (1.12) Then, driven by the first motor, the cross arm descends vertically. After inserting the plasma torch into the attitude correction device, the cross arm stops descending, and the position of the plasma torch is finely adjusted through the feedback of the four first pressure sensors until it is concentric with the attitude correction device; (1.13) Then the cross arm continues to descend vertically until it is inserted into the furnace; (2) The integrated box removes the plasma torch (2.1) Driven by the first motor, the cross arm ascends vertically away from the furnace opening until it stops ascending at the upper limit of the cross arm; (2.2) Driven by the lower motor, the cross arm rotates with the column above the loading rack; (2.3) The solenoid valve group of the water, electricity, and gas flexible pipeline is closed; (2.4) Then, driven by the first motor, the cross arm descends vertically, driving the plasma torch to insert into the second guiding sleeve of the loading rack. After passing through the attitude correction device, it stops descending, and the position of the plasma torch is finely adjusted through the feedback of the four first pressure sensors until it is concentric with the attitude correction device; (2.5) Then the cross arm continues to descend vertically. When the outer frame limit block at the bottom of the integrated box touches the top pressure sensor of the loading rack, the cross arm stops descending; (2.6) Then the cross arm descends 5 mm, and the elastic drainage valve of the plasma torch is opened passively and maintained for 1 min; (2.7) Then the cross arm ascends vertically until the pressure of the top pressure sensor of the loading rack disappears, and the cross arm stops ascending; (2.8) The cylinder of the pneumatic clamping device of the loading rack closes; The cylinder of the compression sleeve assembly of the integrated box drives the insulating pressing plate to the lower limit position of the cylinder; The cylinder of the bottom locking device of the integrated box operates until the cylinder retracts to the limit position; Then, driven by the first motor, the cross arm vertically rises to the upper limit position.

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