Plasma cutting equipment for expansion joint production
By designing an arc-intercepting integrator in the plasma arc cutting equipment, multiple core tiles are spliced into the channel cylinder to intercept the random branches of the plasma arc beam, and cooling is reduced through the inner core cooling device, the problems of random branches intercepting and intercepting the cylinder overheating during plasma arc cutting are solved, achieving a smoother cutting edge and a longer equipment life.
Patent Information
- Application Number
- CN202510584872.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2045-05-08
AI Technical Summary
During the plasma arc cutting process, the random shooting branches outside the plasma arc beam are difficult to be effectively intercepted, resulting in overheating and damage to the intercepting cylinder and the cutting edge is not smooth enough.
An arc cutter integrator is designed, including a disc holder, an outer ring gear, a module device and an inner core cooling device. The core pellets arranged in a uniform ring are spliced into a channel cylinder to intercept the sporadic branches around the plasma arc beam, and the core pellet is blown and cooled through the inner core cooling device to avoid overheating.
Effectively intercept the random shooting branches on the periphery of the plasma arc beam, improve the smoothness of the cutting edge, and extend the service life of the interceptor cylinder through automatic decomposition and cooling mechanisms.
Smart Images
Figure CN120095288A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plasma cutting, in particular to plasma cutting equipment for producing expansion joints. Background Art
[0002] The process of producing and processing expansion joints involves plasma cutting. Plasma arc cutting is to pass the mixed gas through a high-frequency arc. The high-frequency arc decomposes or ionizes some gases into basic atomic particles, thereby generating plasma. The arc then jumps to the stainless steel workpiece, and the high-pressure gas blows the plasma out of the cutting torch burner. Combined with the high energy released when the gas in the plasma returns to normal, a high temperature is generated. This temperature is almost twice the melting point of stainless steel, causing the stainless steel to melt quickly.
[0003] During plasma arc cutting, the plasma arc is shot out from the plasma arc launch gun, and the plasma arc beam with impact force penetrates the workpiece plate. In order to make the edge of the cut workpiece smoother and neater, the plasma arc beam needs to be concentrated into an energy-intensive thin beam, so that the plasma arc beam shot out from the plasma arc launch gun can pass through the inner hole of the interception cylinder. If there are random branches on the periphery of the plasma arc beam, the arc branches will be cut off by the interception cylinder, so that only the energy-concentrated part of the plasma arc beam passing through the inside of the interception cylinder will be left. When the densely gathered plasma arc beam cuts the workpiece plate, the edge of the cut plate will be smoother and neater. The interception cylinder will gradually heat up when it comes into contact with the random branches of the high-temperature plasma arc beam. If it is not replaced in time, the overheated interception cylinder will be damaged by the impact.
[0004] Based on the purpose of eliminating peripheral random branches of a plasma arc beam, the present invention provides a plasma cutting device for producing expansion joints. Summary of the invention
[0005] The object of the present invention is to provide a plasma cutting device for producing expansion joints to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above object, the present invention provides the following technical solution: a plasma cutting device for expansion joint production, comprising a plasma arc gun, and an arc-cutting integrator for intercepting peripheral random branches of a plasma arc beam emitted by the plasma arc gun, wherein the arc-cutting integrator comprises:
[0007] A disc frame fixed on the plasma arc gun, wherein the plasma arc beam emitted by the plasma arc gun passes through a middle hole on the disc frame;
[0008] An outer gear ring is arranged at the edge of the disc frame, and the outer gear ring is clamped in a ring groove provided on the side wall of the disc frame edge;
[0009] A plurality of module devices evenly arranged in a ring are driven under the outer gear ring, and the plurality of module devices form a channel for the plasma arc to pass through at the convergence point, and the peripheral random branches of the plasma arc beam are intercepted by the channel;
[0010] A rail frame used to guide the module devices to gather together, one end of the rail frame is fixed on the disk frame, and one side of each module device is correspondingly distributed with a rail frame;
[0011] The module device is provided with an inner core cooling device, which blows air to cool down the components replaced from the channel on the module device.
[0012] The module device comprises:
[0013] The unit piles are fixed on the disc frame, and the worm and the flat shaft are supported on the unit piles, one end of the worm is meshed and connected with the outer gear ring through a fixed gear, and the spiral teeth on the worm are meshed and connected with the gear fixed at one end of the flat shaft;
[0014] A module stand is fixed at the other end of the horizontal axis, and a plurality of local modules are evenly arranged around the edge of the module stand.
[0015] The local module includes:
[0016] A circular shaft movably sleeved in a through hole provided on the module vertical plate, and a cam weight block fixed at one end of the circular shaft;
[0017] The channel unit element supported by the other end of the circumferential shaft.
[0018] The channel unit component includes a T-seat fixedly connected to the circulating shaft, a telescopic plate that slides and telescopes in a plate groove opened on the T-seat, a core block fixed at one end of the telescopic plate, a sliding resistance plate vertically fixed at one side of the telescopic plate, a spring supported between the T-seat and the telescopic plate, and a direction rod passing through the inside of the spring, wherein the direction rod slides through a column hole opened on the T-seat, and one end of the direction rod is fixed on the telescopic plate.
[0019] The core block is in the shape of a fan-shaped block. A plurality of evenly arranged core blocks are butt-jointed to form a channel cylinder for intercepting peripheral random branches of a plasma arc beam, and the remaining concentrated plasma arc passes through the inside of the channel cylinder and penetrates the workpiece plate. The rail frame includes a column and an L-shaped baffle fixed on one side of the column. The sliding resistance plate that moves around is blocked by the rail frame column, and the sliding resistance plate rises along the channel between the rail frame column and the L-shaped baffle, and the channel cylinder formed by butt-jointing the core blocks is controlled by the telescopic plate to move axially.
[0020] The inner core cooling device includes an outer ring cylinder gear fixed on the middle of the module vertical plate, a plurality of unit arc plates evenly arranged outside the outer ring cylinder gear, a cylindrical box for blowing air to the inner wall of the channel on the core block, an airway device for supplying air to the cylindrical box, and a linkage device for establishing a transmission between the outer ring cylinder gear and the airway device. The unit arc plate is fixed on the module vertical plate, and a plurality of air holes are provided on the shell of the cylindrical box facing the core block.
[0021] The airway device includes a flat tube with one end fixedly connected to the cylindrical box, a wind box fixedly connected to the other end of the flat tube, a fan arranged in the wind box, and an actuating shaft fixed in the middle of the fan, the actuating shaft is movably sleeved in a through hole opened in the middle of the bottom plate at one end of the wind box, the other end of the wind box is fixedly connected to a hard pipe, and the hard pipe is fixed on the unit pile column.
[0022] The linkage device comprises an integrated frame with one end fixed on the wind box, a temporary driving group supported by the other end of the integrated frame, and a speed increasing group for establishing transmission between the driving shaft and the temporary driving group.
[0023] The speed increasing group includes a driving shaft cylinder movably sleeved in a through hole provided on the integrated frame, a speed increasing gear with a fixed sleeve at one end of the driving shaft cylinder, a side control shaft also movably sleeved in a column hole provided on the integrated frame, and an acceleration gear with a fixed sleeve on the side control shaft. The end of the driving shaft is meshed and connected to the acceleration gear through a fixed gear, and the side control shaft is meshed and connected to the speed increasing gear through a fixed cylinder gear.
[0024] The temporary driving group includes an adjusting frame, a linkage column gear supported at one end of the adjusting frame, a return spring connected between the adjusting frame and the integrated frame, a pressure control rod sliding through a column hole opened at the other end of the adjusting frame, a compression spring sleeved on the pressure control rod, one end of the pressure control rod is contacted and transmitted with the encountered unit arc plate by setting a thick head, the compression spring is supported between the thick head of the pressure control rod and the adjusting frame, the waist of the linkage column gear is movably sleeved in the through hole opened on the adjusting frame by fixing the I-shaped cylinder, the local section on the integrated frame slides through the square hole opened on the adjusting frame, one end of the linkage column gear is meshed and connected with the outer ring cylinder gear, and the other end of the linkage column gear is inserted into the gear hole opened at the axis center of the temporary driving shaft cylinder to establish transmission.
[0025] Compared with the prior art, the present invention has the following beneficial effects:
[0026] 1. The channel cylinder is spliced together by multiple evenly arranged core blocks. The plasma arc beam passes through the inside of the channel cylinder. If there are random branches outside the plasma arc beam, the branches will be intercepted by the channel cylinder. The remaining densely gathered plasma arc beam passes through the interception cylinder and then penetrates the workpiece plate, making the edge of the cut workpiece plate smoother and neater.
[0027] 2. The plasma arc beam passes through a row of interception cylinders, and the row of interception cylinders moves axially synchronously. The interception cylinder at one end is decomposed, and the decomposed core block is blown to cool down, and the interception cylinder at the other end is spliced to generate. In this way, there are interception cylinders in the row of interception cylinders to intercept the peripheral random branches of the plasma arc beam, and there are also overheated interception cylinders that automatically decompose to avoid further heating. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the present invention.
[0029] Figure 2 Schematic diagram of the position of the arc cutoff integrator.
[0030] Figure 3 This is a schematic diagram of the arc-cutting integrator structure.
[0031] Figure 4 Schematic diagram of module installation location.
[0032] Figure 5 Schematic diagram of the module device structure.
[0033] Figure 6 This is a schematic diagram of the location of local modules.
[0034] Figure 7 It is a schematic diagram of the local module structure.
[0035] Figure 8 This is a schematic diagram of the location of the inner core cooling device.
[0036] Fig. 9 Schematic diagram of the core block structure.
[0037] Fig.10 This is a schematic diagram of the structure of the inner core cooling device.
[0038] Fig.11 Schematic diagram of the airway device structure.
[0039] Fig.12 It is a schematic diagram of the speed increasing group structure.
[0040] Fig.13 This is a schematic diagram of the temporary group structure.
[0041] Fig.14 Schematic diagram of the position of the linkage column gear.
[0042] In the figure: plasma arc gun 1, arc cutting integrator 2, disc frame 3, outer gear ring 4, module device 5, rail frame 6, inner core cooling device 7, module vertical disc 8, local module 9, unit pile column 10, worm 11, flat shaft 12, circular shaft 13, cam weight 14, channel unit 15, direction rod 16, spring 17, T seat 18, telescopic plate 19, sliding resistance plate 20, core block 21, unit arc plate 22, cylindrical box 23, outer ring cylinder gear 24, airway device 25, linkage device 26, flat tube 27, wind box 28, fan 29, drive shaft 30, integrated frame 31, speed increasing group 32, temporary group 33, side control shaft 34, speed increasing gear 35, temporary shaft cylinder 36, acceleration gear 37, pressure control rod 38, compression spring 39, adjustment frame 40, return spring 41, linkage column gear 42. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0044] See also Figures 1 to 14 The present invention provides a technical solution: a plasma cutting device for producing expansion joints, comprising a plasma arc gun 1, and an arc-cutting integrator 2 for intercepting the peripheral random branches of the plasma arc beam emitted by the plasma arc gun 1, wherein the arc-cutting integrator 2 comprises:
[0045] A disk frame 3 is fixed on the plasma arc gun 1, and the plasma arc beam emitted by the plasma arc gun 1 passes through the middle hole of the disk frame 3;
[0046] An outer gear ring 4 is arranged at the edge of the disc frame 3, and the outer gear ring 4 is clamped in a ring groove opened on the side wall of the edge of the disc frame 3;
[0047] A plurality of module devices 5 evenly arranged in an annular manner are driven below the outer gear ring 4. The plurality of module devices 5 form a channel for the plasma arc to pass through at the convergence point, and the peripheral random branches of the plasma arc beam are intercepted by the channel;
[0048] A rail frame 6 for guiding the module devices 5 to gather together, one end of the rail frame 6 is fixed on the disk frame 3, and one side of each module device 5 is correspondingly distributed with a rail frame 6;
[0049] The module device 5 is provided with an inner core cooling device 7 , which blows air to cool down the components of the module device 5 that have been replaced from the channel.
[0050] refer to Figure 5 It is understood that the module device 5 includes:
[0051] The unit pile 10 is fixed on the disk frame 3, and the worm 11 and the flat shaft 12 supported on the unit pile 10, one end of the worm 11 is meshed and connected with the outer gear ring 4 through a fixed gear, and the spiral teeth on the worm 11 are meshed and connected with the gear fixed at one end of the flat shaft 12;
[0052] The other end of the flat shaft 12 is fixed with a module stand 8 , and a plurality of local modules 9 are evenly arranged around the edge of the module stand 8 .
[0053] refer to Figure 7 It is understood that local module 9 includes:
[0054] A circular shaft 13 movably sleeved in a through hole provided on the module stand 8, and a cam weight 14 fixed at one end of the circular shaft 13;
[0055] The other end of the circumferential shaft 13 supports a channel unit element 15 .
[0056] refer to Figure 7 It is understood that the channel unit 15 includes a T-seat 18 fixedly connected to the circular shaft 13, a telescopic plate 19 that slides and telescopes in a plate groove opened on the T-seat 18, a core block 21 fixed at one end of the telescopic plate 19, a sliding resistance plate 20 vertically fixed on one side of the telescopic plate 19, a spring 17 supported between the T-seat 18 and the telescopic plate 19, and a direction rod 16 passing through the inside of the spring 17, the direction rod 16 slides through the column hole opened on the T-seat 18, and one end of the direction rod 16 is fixed on the telescopic plate 19.
[0057] The core block 21 is fan-shaped, and a plurality of evenly arranged core blocks 21 are butt-jointed to form a channel cylinder for intercepting the peripheral random branches of the plasma arc beam, and the remaining concentrated plasma arc passes through the inside of the channel cylinder and penetrates the workpiece plate. The rail frame 6 includes a column and an L-shaped baffle fixed on one side of the column. The sliding resistance plate 20 moving around is blocked by the column of the rail frame 6, and the sliding resistance plate 20 rises along the channel between the column of the rail frame 6 and the L-shaped baffle, and the channel cylinder formed by the butt joint of the core blocks 21 is controlled by the telescopic plate 19 to move axially.
[0058] refer to Fig. 9, the plasma arc beam passes through the middle of a row of channel cylinders. If there are random branches on the plasma arc beam, it will be intercepted by the channel cylinder. The remaining concentrated plasma arc beam shoots out in a straight line and then penetrates the workpiece plate, so that the cut edge of the workpiece plate is neat, and the temperature of the channel cylinder rises. In order to prevent the irreversible impact damage caused by overheating of the channel cylinder, the channel cylinder at the plasma arc beam emission position is replaced periodically, so that the channel cylinder with increased temperature leaves the plasma arc beam emission. Specifically, the cylinder composed of four core blocks 21 rises straight, and automatically separates after rising to the top. The separated core block 21 moves in a C-shaped route and moves to the injection position of the cold air. The cold air blows onto the inner wall of the channel of the core block 21 to quickly cool the core block 21. The cooled core block 21 continues to move, and finally the multiple core blocks 21 arranged in a ring are reassembled into the channel cylinder, so that the channel cylinder at the plasma arc beam emission position always exists, and there is always leaving and replenishment, so that the interception work of the random branches of the plasma arc beam and the replacement work of the channel cylinder do not affect each other.
[0059] The core block 21 moves along the C-shaped route because the outer gear ring 4 is externally connected to the driving mechanism in the prior art. The outer gear ring 4 rotates to drive all the worms 11 to rotate, and then drives the module vertical plate 8 to rotate through the flat shaft 12, causing the circular shaft 13 to orbit. Under the gravity of the cam weight 14, the T seat 18 always remains horizontal, so that the telescopic plate 19 drives the core block 21, and the core block 21 remains horizontal and moves along the C-shaped route. Fig. 9 The core block 21 that assembles the channel cylinder rises because the sliding resistance plate 20 that moves around is intercepted and clamped and guided by the rail frame 6, and then the sliding resistance plate 20 rises linearly, correspondingly controlling the channel cylinder to rise linearly.
[0060] refer to Fig.10 It is understood that the inner core cooling device 7 includes an outer ring cylinder gear 24 fixed on the middle of the module vertical plate 8, a plurality of unit arc plates 22 evenly arranged outside the outer ring cylinder gear 24, a cylindrical box 23 for blowing air to the inner wall of the channel on the core block 21, an airway device 25 for supplying air to the cylindrical box 23, and a linkage device 26 for establishing a transmission between the outer ring cylinder gear 24 and the airway device 25. The unit arc plate 22 is fixed on the module vertical plate 8, and a plurality of air holes are provided on the shell of the cylindrical box 23 facing the core block 21.
[0061] The airway device 25 includes a flat tube 27 with one end fixedly connected to the cylindrical box 23, a wind box 28 fixedly connected to the other end of the flat tube 27, a fan 29 arranged in the wind box 28, and an actuating shaft 30 fixed in the middle of the fan 29, the actuating shaft 30 is movably sleeved in a through hole opened in the middle of the bottom plate of one end of the wind box 28, and the other end of the wind box 28 is fixedly connected to a hard pipe, and the hard pipe is fixed on the unit pile 10.
[0062] The linkage device 26 includes an integrated frame 31 with one end fixed to the wind box 28, a temporary drive group 33 supported by the other end of the integrated frame 31, and a speed increasing group 32 that establishes transmission between the driving shaft 30 and the temporary drive group 33.
[0063] The speed increasing group 32 includes a temporary shaft cylinder 36 movably sleeved in a through hole provided on the integrated frame 31, a speed increasing gear 35 with a fixed sleeve at one end of the temporary shaft cylinder 36, a side control shaft 34 also movably sleeved in a column hole provided on the integrated frame 31, and an acceleration gear 37 fixed on the side control shaft 34. The end of the driving shaft 30 is meshed and connected with the acceleration gear 37 through a fixed gear, and the side control shaft 34 is meshed and connected with the speed increasing gear 35 through a fixed cylinder gear.
[0064] The temporary motion group 33 includes an adjustment frame 40, a linkage column gear 42 supported by one end of the adjustment frame 40, a return spring 41 connected between the adjustment frame 40 and the integrated frame 31, a pressure control rod 38 sliding through the column hole opened at the other end of the adjustment frame 40, a compression spring 39 sleeved on the pressure control rod 38, one end of the pressure control rod 38 is provided with a rough head to contact and drive with the unit arc plate 22 encountered, the compression spring 39 is supported between the rough head of the pressure control rod 38 and the adjustment frame 40, the waist of the linkage column gear 42 is movably sleeved in the through hole opened on the adjustment frame 40 by fixing the I-shaped cylinder, and the local on the integrated frame 31 The segment slides through the square hole opened on the adjustment frame 40, one end of the linkage column gear 42 is meshed with the outer ring cylinder gear 24 for transmission connection, and the other end of the linkage column gear 42 is inserted into the gear hole opened at the axis of the temporary shaft cylinder 36 to establish transmission. The compression spring 39 is designed to avoid the tooth rigidity collision problem during the insertion of the linkage column gear 42 into the temporary shaft cylinder 36. Once the arc plate 22 of the surrounding motion unit lifts the pressure control rod 38, the pressure control rod 38 pushes the adjustment frame 40 through the compression spring 39, and the adjustment frame 40 drives the linkage column gear 42, and the linkage column gear 42 is smoothly and flexibly inserted into the temporary shaft cylinder 36.
[0065] The core block 21 moves around to the position of the cylindrical box 23, and cold air is sprayed out of the cylindrical box 23 to cool the inner wall of the channel on the core block 21. After the core block 21 and the cylindrical box 23 are separated, the cold air automatically stops spraying, thus avoiding waste of cold air.
[0066] Principle of air transmission: the module vertical plate 8 rotates to drive the outer ring cylinder gear 24, and then transmits the temporary shaft cylinder 36 through the linkage column gear 42, and then transmits the side control shaft 34 through the speed increase gear 35, and then the acceleration gear 37 rotates to transmit the driving shaft 30, and the corresponding fan 29 rotates continuously to realize ventilation. The hard pipe connected to the wind box 28 is externally connected to the cold air supply mechanism in the prior art. The fan 29 rotates to transport cold air, and the cold air flows through the wind box 28, the flat tube 27 and the cylindrical box 23, and then sprays out and shoots on the core block 21. The process of cold air injection is intermittent. During the cold air injection, the unit arc plate 22 and the pressure control rod 38 are in contact, and the core block 21 moves away from the cylindrical box 23, and the corresponding unit arc plate 22 and the pressure control rod 38 of the circumferential movement are separated, so that the return spring piece 41 pushes the adjustment frame 40 to move, and the adjustment frame 40 drives the linkage column gear 42, and the axially moving linkage column gear 42 and the temporary shaft cylinder 36 are separated, and the driving path of the fan 29 is disconnected, the fan 29 stops rotating, and the cold air stops being transported.
[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A plasma cutting device for expansion joint production, comprising a plasma arc gun and an arc interception integrator for intercepting peripheral random branches of a plasma arc beam emitted by the plasma arc gun, characterized in that: The arc intercepting integrator comprises: A disc frame fixed on the plasma arc gun, wherein the plasma arc beam emitted by the plasma arc gun passes through a middle hole on the disc frame; An outer gear ring is arranged at the edge of the disc frame, and the outer gear ring is clamped in a ring groove provided on the side wall of the disc frame edge; A plurality of module devices evenly arranged in a ring are driven under the outer gear ring, and the plurality of module devices form a channel for the plasma arc to pass through at the convergence point, and the peripheral random branches of the plasma arc beam are intercepted by the channel; A rail frame used to guide the module devices to gather together, one end of the rail frame is fixed on the disk frame, and one side of each module device is correspondingly distributed with a rail frame; The module device is provided with an inner core cooling device, which blows air to cool down the components replaced from the channel on the module device.
2. The plasma cutting equipment for expansion joint production according to claim 1, characterized in that: The module device comprises: The unit piles are fixed on the disc frame, and the worm and the flat shaft are supported on the unit piles, one end of the worm is meshed and connected with the outer gear ring through a fixed gear, and the spiral teeth on the worm are meshed and connected with the gear fixed at one end of the flat shaft; A module stand is fixed at the other end of the horizontal axis, and a plurality of local modules are evenly arranged around the edge of the module stand.
3. The plasma cutting equipment for expansion joint production according to claim 2, characterized in that: The local module includes: A circular shaft movably sleeved in a through hole provided on the module vertical plate, and a cam weight block fixed at one end of the circular shaft; The channel unit element supported by the other end of the circumferential shaft.
4. The plasma cutting equipment for expansion joint production according to claim 3, characterized in that: The channel unit component includes a T-seat fixedly connected to the circulating shaft, a telescopic plate that slides and telescopes in a plate groove opened on the T-seat, a core block fixed at one end of the telescopic plate, a sliding resistance plate vertically fixed at one side of the telescopic plate, a spring supported between the T-seat and the telescopic plate, and a direction rod passing through the inside of the spring, wherein the direction rod slides through a column hole opened on the T-seat, and one end of the direction rod is fixed on the telescopic plate.
5. The plasma cutting equipment for expansion joint production according to claim 4, characterized in that: The core block is in the shape of a fan-shaped block. A plurality of evenly arranged core blocks are butt-jointed to form a channel cylinder for intercepting peripheral random branches of a plasma arc beam, and the remaining concentrated plasma arc passes through the inside of the channel cylinder and penetrates the workpiece plate. The rail frame includes a column and an L-shaped baffle fixed on one side of the column. The sliding resistance plate that moves around is blocked by the rail frame column, and the sliding resistance plate rises along the channel between the rail frame column and the L-shaped baffle, and the channel cylinder formed by butt-jointing the core blocks is controlled by the telescopic plate to move axially.
6. The plasma cutting equipment for expansion joint production according to claim 5, characterized in that: The inner core cooling device includes an outer ring cylinder gear fixed on the middle of the module vertical plate, a plurality of unit arc plates evenly arranged outside the outer ring cylinder gear, a cylindrical box for blowing air to the inner wall of the channel on the core block, an airway device for supplying air to the cylindrical box, and a linkage device for establishing a transmission between the outer ring cylinder gear and the airway device. The unit arc plate is fixed on the module vertical plate, and a plurality of air holes are provided on the shell of the cylindrical box facing the core block.
7. The plasma cutting equipment for expansion joint production according to claim 6, characterized in that: The airway device includes a flat tube with one end fixedly connected to the cylindrical box, a wind box fixedly connected to the other end of the flat tube, a fan arranged in the wind box, and an actuating shaft fixed in the middle of the fan, the actuating shaft is movably sleeved in a through hole opened in the middle of the bottom plate at one end of the wind box, the other end of the wind box is fixedly connected to a hard pipe, and the hard pipe is fixed on the unit pile column.
8. The plasma cutting equipment for expansion joint production according to claim 7, characterized in that: The linkage device comprises an integrated frame with one end fixed on the wind box, a temporary driving group supported by the other end of the integrated frame, and a speed increasing group for establishing transmission between the driving shaft and the temporary driving group.
9. The plasma cutting equipment for expansion joint production according to claim 8, characterized in that: The speed increasing group includes a driving shaft cylinder movably sleeved in a through hole provided on the integrated frame, a speed increasing gear with a fixed sleeve at one end of the driving shaft cylinder, a side control shaft also movably sleeved in a column hole provided on the integrated frame, and an acceleration gear with a fixed sleeve on the side control shaft. The end of the driving shaft is meshed and connected to the acceleration gear through a fixed gear, and the side control shaft is meshed and connected to the speed increasing gear through a fixed cylinder gear.
10. The plasma cutting equipment for expansion joint production according to claim 9, characterized in that: The temporary driving group includes an adjusting frame, a linkage column gear supported at one end of the adjusting frame, a return spring connected between the adjusting frame and the integrated frame, a pressure control rod sliding through a column hole opened at the other end of the adjusting frame, a compression spring sleeved on the pressure control rod, one end of the pressure control rod is contacted and transmitted with the encountered unit arc plate by setting a thick head, the compression spring is supported between the thick head of the pressure control rod and the adjusting frame, the waist of the linkage column gear is movably sleeved in the through hole opened on the adjusting frame by fixing the I-shaped cylinder, the local section on the integrated frame slides through the square hole opened on the adjusting frame, one end of the linkage column gear is meshed and connected with the outer ring cylinder gear, and the other end of the linkage column gear is inserted into the gear hole opened at the axis center of the temporary driving shaft cylinder to establish transmission.
Citation Information
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