CN113758270A - Thermal forming furnace external heat preservation system - Google Patents
Thermal forming furnace external heat preservation system Download PDFInfo
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- CN113758270A CN113758270A CN202111066051.0A CN202111066051A CN113758270A CN 113758270 A CN113758270 A CN 113758270A CN 202111066051 A CN202111066051 A CN 202111066051A CN 113758270 A CN113758270 A CN 113758270A
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- heat preservation
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- 238000004321 preservation Methods 0.000 title claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 191
- 229920000742 Cotton Polymers 0.000 claims abstract description 32
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims description 17
- 238000003856 thermoforming Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 10
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 206010053615 Thermal burn Diseases 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009422 external insulation Methods 0.000 claims 6
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001447 compensatory effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0023—Linings or walls comprising expansion joints or means to restrain expansion due to thermic flows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention belongs to the technical field of thermal forming mechanical equipment, and relates to a thermal insulation system outside a thermal forming furnace.A heat insulation door is arranged around an internal high-temperature heating area, and a superhard heat insulation layer and a heat insulation cotton layer are sequentially arranged on the heat insulation door from the inside of the furnace to the outside of the furnace; equidistant a plurality of heated board pull rod that sets up between superhard heat preservation and the cotton layer of heat preservation sets gradually heated board registration arm and low expansion ceramic registration arm in heated board pull rod periphery, at the outer tip connection open-ended square pipe of heated board registration arm, and the connection lock nut of heated board pull rod is located square intraductally, is equipped with high temperature expansion compensation spring in heated board pull rod tip. This heat preservation system not only produces the displacement to the heat preservation after the thermal deformation and has the guide effect, and high temperature expansion compensation spring plays the compensation effect to the deformation of heat preservation moreover, guarantees that the heated board pull rod continues to exert the straining force to super hard heat preservation, guarantees the stability of insulated door shape.
Description
Technical Field
The invention relates to a thermal insulation system outside a thermoforming furnace, belonging to the technical field of thermoforming mechanical equipment.
Background
In the field of aircraft manufacturing, thermoforming processes have been widely used, and thermoforming furnaces are also necessary equipment for thermoforming processes. However, the existing thermal forming furnace only focuses on temperature control of the upper heating table and the lower heating table, but does not focus on heat preservation of the periphery of the furnace body, so that the heat preservation effect is not ideal, the situation of repeated heating of the platform occurs, energy is wasted, and the product quality of the thermal forming process is not facilitated.
Disclosure of Invention
The invention aims to provide a thermal insulation system outside a thermoforming furnace, which has good thermal insulation effect and long service life.
In order to solve the above problems, the specific technical scheme of the invention is as follows: a thermal insulation system outside a thermal forming furnace comprises an upper cross beam and a lower cross beam, wherein the upper cross beam and the lower cross beam are supported by four stand columns, an upper platform is movably connected below the upper cross beam, a lower platform is connected above the lower cross beam, thermal insulation doors are positioned around the upper platform and the lower platform and used for insulating a high-temperature heating zone formed between the upper platform and the lower platform, and each thermal insulation door comprises a left thermal insulation door, a right thermal insulation door, a front thermal insulation door and a rear thermal insulation door; two of the upright columns are respectively positioned in the front-back direction on the left side of the left heat insulation door, and the other two upright columns are respectively positioned in the front-back direction on the right side of the right heat insulation door; the left heat insulation door and the right heat insulation door are respectively connected with the upright post through a side driving device; the front heat insulation door and the rear heat insulation door are connected with the upper cross beam and the lower cross beam through opening driving devices; the heat insulation door is sequentially provided with a superhard heat insulation layer and a heat insulation cotton layer from the inside to the outside of the furnace; a plurality of insulation board pull rods are arranged between the superhard insulation layer and the insulation cotton layer at equal intervals, and one ends of the insulation board pull rods are limited in the grooves formed in the superhard insulation layer through insulation board pressing plates; the heat insulation plate locating pipe and the low-expansion ceramic locating pipe are coaxially and sequentially arranged on the periphery of the heat insulation plate pull rod, the heat insulation plate locating pipe is located in the superhard heat insulation layer and the heat insulation cotton layer, the low-expansion ceramic locating pipe is located in the heat insulation cotton layer, one end of the low-expansion ceramic locating pipe is supported on the surface of the superhard heat insulation layer, and the other end of the low-expansion ceramic locating pipe is supported on the end face of a connecting head arranged at the outer end part of the heat insulation plate locating pipe; the connecting heads of the heat insulation board positioning pipes at the same height on the same heat insulation door are welded with the wide side surfaces of the square pipes in the length direction, and the surfaces of the square pipes connected with the heat insulation board positioning pipes are embedded in the heat insulation cotton layer; the outer surface length direction of square pipe is equipped with the opening, and a plurality of lock nut is connected with the other end of the heated board pull rod that corresponds the position through square pipe opening, is equipped with high temperature expansion compensation spring at heated board pull rod tip, and high temperature expansion compensation spring's one end is supported in square pipe, and high temperature expansion compensation spring's the other end supports on lock nut.
The super-hard heat-insulating layer is an aluminum silicate super-hard plate, and the heat-insulating cotton layer is made of aluminum silicate fiber cotton.
The periphery of each heat insulation door is provided with an annular rectangular frame and an annular water-cooling pipe in parallel along the thickness direction of the heat insulation door, the water-cooling pipe is positioned between the superhard heat insulation layer and the rectangular frame, the upper part and the lower part of the heat insulation door are respectively provided with a pipe joint, and the pipe joints penetrate through the rectangular frame and are communicated with the water-cooling pipe.
Elastic heat preservation strips are arranged on the contact surfaces of an upper platform of the thermal forming furnace and each heat insulation door, the elastic heat preservation strips are connected in grooves on the periphery of the upper platform through bolts, heat preservation springs are arranged in the grooves, and the end parts of the heat preservation springs are supported on the inner end surfaces of the elastic heat preservation strips; the outer end face of the elastic heat preservation strip is contacted with the surface of the heat insulation door at the corresponding position.
The outer surface of the heat-insulating cotton layer is connected with a layer of anti-scald protection net through a plurality of parallel arranged reinforcing frames, and an air heat-insulating layer is formed between the anti-scald protection net and the heat-insulating cotton layer.
The side driving device is structurally characterized in that four fixed hinges are respectively and rectangularly distributed on the outer surfaces of the left heat-insulating door and the right heat-insulating door, and each fixed hinge is respectively connected with the tail end of the vertical edge of an L-shaped movable hinge; the tail end of the horizontal edge of the upper movable hinge is respectively connected with a piston rod of a side starting hydraulic cylinder, and the side starting hydraulic cylinder is connected with an upright post corresponding to the position through an upright post hoop; the middle part of the horizontal edge of the upper movable hinge is movably connected with the upper end of a pull rod of the heat insulation door, and the lower end of the pull rod of the heat insulation door is movably connected with the tail end of the horizontal edge of the lower movable hinge; the two movable hinges corresponding to the same height position are connected with a side opening synchronizing shaft.
The opening driving device is structurally characterized in that upper hinges are respectively arranged on the left side and the right side of the upper cross beam, synchronizing shaft fixing seats are respectively arranged on the left side and the right side of the lower cross beam, an opening and closing synchronizing shaft is connected between the synchronizing shaft fixing seats, two ends of the opening and closing synchronizing shaft respectively penetrate through the synchronizing shaft fixing seats and are fixedly connected with the lower ends of opening and closing synchronizing swing arms at corresponding positions, the upper ends of the opening and closing synchronizing swing arms are simultaneously connected with piston rods of opening and closing hydraulic cylinders which are horizontally and fixedly arranged and the bottom ends of synchronizing racks through pin shafts, and the upper ends of the synchronizing racks are movably connected with the upper hinges; a front heat insulation door or a rear heat insulation door is arranged between the two synchronous racks, and synchronous gears connected to two sides of the front heat insulation door or the rear heat insulation door are meshed with the synchronous racks; and lifting hydraulic cylinders are respectively arranged on two sides of the front heat-insulating door or the rear heat-insulating door, one end of each lifting hydraulic cylinder is movably connected with the upper cross beam, and a piston rod at the other end of each lifting hydraulic cylinder is connected with the front heat-insulating door or the rear heat-insulating door.
The utility model provides a thermal forming stove outside heat preservation system adopts double-deck insulation construction to set up heated board pull rod, heated board registration arm and low expansion ceramic registration arm structure in double-deck insulation construction, not only produce the displacement to the heat preservation after the thermal deformation and have the guide effect, high temperature expansion compensating spring plays the compensatory action to the deformation of heat preservation moreover, guarantees that the heated board pull rod lasts to exert the straining force to superhard heat preservation, guarantees the stability of thermal-insulated door shape.
The super-hard heat-insulating layer is an aluminum silicate super-hard plate and has the characteristics of stable shape and good heat-insulating effect, and the heat-insulating cotton layer adopts aluminum silicate fiber cotton non-fixed shape and has an auxiliary heat-insulating function on the super-hard heat-insulating layer at the inner side.
Set up the water-cooled tube around the insulated door, reduce insulated door temperature all around, set up the elasticity heat preservation strip simultaneously on the contact surface of last platform and each insulated door to prevent to have the gap between last platform and the insulated door, cause the heat to scatter and disappear.
The side drive device structure can control the opening and closing of left insulated door and right insulated door, prevents that upper platform from removing the in-process and producing friction or interference with left insulated door or right insulated door. And lifting hydraulic cylinders are arranged on two sides of the opening driving device at the same time, and the synchronous operation of the opening hydraulic cylinders on the two sides is realized through the meshing of a synchronous gear and a synchronous rack.
Drawings
FIG. 1 is a schematic top view of a thermal insulation system external to a thermoforming furnace.
FIG. 2 is a schematic front view of a thermal insulation system outside the thermoforming furnace.
Fig. 3 is a partially enlarged view of the point C in fig. 1.
Fig. 4 is a partially enlarged view of fig. 1 at D.
FIG. 5 is a schematic view of the thermal insulating door of the thermal forming furnace without the elastic heat-insulating strip for dissipating heat.
Fig. 6 is a partially enlarged view of a portion a in fig. 5 after the upper stage is provided with the elastic heat-insulating strip.
Fig. 7 is an enlarged view of the thermal door B of fig. 6 in an opened state.
Fig. 8 is an enlarged view of fig. 6 showing the thermal door B in a closed state.
Fig. 9 is a schematic structural view of a side driving device.
Fig. 10 is a schematic structural view of the opening driving device.
Detailed Description
As shown in fig. 1 and 2, an external thermal insulation system of a thermoforming furnace comprises an upper cross beam and a lower cross beam, wherein the upper cross beam and the lower cross beam are supported by four upright posts 5, an upper platform is movably connected below the upper cross beam, a lower platform is connected above the lower cross beam, thermal insulation doors are arranged around the upper platform and the lower platform and used for insulating a high-temperature heating zone formed between the upper platform and the lower platform, and each thermal insulation door comprises a left thermal insulation door 1, a right thermal insulation door 2, a front thermal insulation door 3 and a rear thermal insulation door 4; two of the upright columns 5 are respectively positioned in the front-back direction at the left side of the left heat insulation door 1, and the other two upright columns 5 are respectively positioned in the front-back direction at the right side of the right heat insulation door 2; the left heat insulation door 1 and the right heat insulation door 2 are respectively connected with the upright post 5 through a side driving device; the front heat insulation door 3 and the rear heat insulation door 4 are connected with the upper cross beam and the lower cross beam through opening driving devices; the heat insulation door is sequentially provided with a superhard heat insulation layer 6 and a heat insulation cotton layer 7 from the inside to the outside of the furnace; as shown in fig. 2, the ultra-hard heat-insulating layer 6 is an aluminum silicate ultra-hard plate which has the characteristics of stable shape and good heat-insulating effect; the heat insulation cotton layer 7 is made of aluminum silicate fiber cotton, the aluminum silicate fiber cotton is not in a fixed shape, space filling can be carried out, and the heat insulation effect is further improved. As shown in figure 4, an annular rectangular frame 17 and an annular water cooling pipe 18 are arranged in parallel on the periphery of each heat insulation door along the thickness direction of the heat insulation door, the water cooling pipe 18 is positioned between the super-hard heat insulation layer 6 and the rectangular frame 17, the upper part and the lower part of the heat insulation door are respectively provided with a pipe joint 19, the pipe joint 19 penetrates through the rectangular frame 17 and is communicated with the water cooling pipe 18, the water cooling pipe 18 reduces the peripheral temperature of the heat insulation door, the pipe joint 19 above the heat insulation door is used for water inlet, and the pipe joint 19 below the heat insulation door is used for water outlet, so that the circulation of cooling water is ensured. As shown in figure 3, the outer surface of the heat-insulating cotton layer 7 is connected with a scald-proof protective net 8 through a plurality of parallel arranged reinforcing frames 22, and an air heat-insulating layer 9 is formed between the scald-proof protective net 8 and the heat-insulating cotton layer 7, so that the scald caused by accidental contact of personnel is prevented.
As shown in fig. 4, a plurality of insulation board pull rods 11 are arranged between the superhard insulation layer 6 and the insulation cotton layer 7 at equal intervals, and one ends of the insulation board pull rods 11 are limited in grooves formed in the superhard insulation layer 6 through insulation board pressing plates 13; an insulation board positioning pipe 16 and a low-expansion ceramic positioning pipe 15 are coaxially and sequentially arranged on the periphery of the insulation board pull rod 11, the insulation board positioning pipe 16 is positioned in the superhard insulation layer 6 and the insulation cotton layer 7, the low-expansion ceramic positioning pipe 15 is positioned in the insulation cotton layer 7, one end of the low-expansion ceramic positioning pipe 15 is supported on the surface of the superhard insulation layer 6, and the other end of the low-expansion ceramic positioning pipe 15 is supported on the end face of a connecting head arranged at the outer end part of the insulation board positioning pipe 16; the connectors of the insulation board positioning pipes 16 at the same height on the same insulation door are connected with the square pipes 14 together, and the surfaces of the square pipes 14 connected with the insulation board positioning pipes 16 are embedded in the insulation cotton layer 7; be equipped with the opening on square pipe 14's the surface length direction, a plurality of lock nut is connected with the other end of the heated board pull rod 11 that corresponds the position through square pipe 14 opening, is equipped with high temperature expansion compensation spring 12 at heated board pull rod 11 tip, and the one end of high temperature expansion compensation spring 12 is supported in square pipe 14, and the other end of high temperature expansion compensation spring 12 supports on lock nut. This structure adopts high temperature expansion compensation spring, has solved the hot door heated board set screw high temperature extension, and leads to the uneven problem in hot door inboard plane, improves hot door's heat preservation effect.
As shown in fig. 5 to 8, since the thermal insulation door is heated to expand in a high temperature state, the thermal insulation door is slightly deformed, and since the heat moves upward, an elastic thermal insulation strip 20 is arranged on the contact surface of the upper platform of the thermoforming furnace and each thermal insulation door, the elastic thermal insulation strip 20 is connected in a groove around the upper platform through bolts, a thermal insulation spring 21 is arranged in the groove, and the end of the thermal insulation spring 21 is supported on the inner end surface of the elastic thermal insulation strip 20; the outer end face of the elastic heat-insulating strip 20 is in contact with the surface of the heat-insulating door at the corresponding position. The elastic heat preservation strip 20 is effectively contacted with the surface of the heat insulation door, so that the sealing performance of the heat insulation door is improved, and heat loss is prevented.
In order to prevent friction between the upper platform and the lower platform of the thermal forming furnace and the left and right heat insulation doors during the moving process, the front heat insulation door, the rear heat insulation door, the left heat insulation door and the right heat insulation door are required to be opened outwards when the upper platform and the lower platform move. As shown in fig. 8, the side driving device is used for opening the left and right thermal insulation doors, and the side driving device is configured such that four fixed hinges 31 are respectively arranged on the outer surfaces of the left thermal insulation door 1 and the right thermal insulation door 2 in a rectangular shape, and each fixed hinge 31 is respectively connected to the vertical edge ends of an L-shaped movable hinge 33; the tail ends of the horizontal edges of the movable hinges 33 positioned above are respectively connected with piston rods of side starting hydraulic cylinders 34, and the side starting hydraulic cylinders 34 are connected with the upright posts 5 corresponding to the positions through upright post hoops 32; the middle part of the horizontal edge of the upper movable hinge 33 is movably connected with the upper end of a heat insulation door pull rod 35, and the lower end of the heat insulation door pull rod 35 is movably connected with the tail end of the horizontal edge of the lower movable hinge 33; the two corresponding living hinges 33 at the same height position are connected with a side opening synchronous shaft 36. The side starting hydraulic cylinder 34 operates to drive the corresponding movable hinge 33 to operate, and simultaneously the side starting synchronizing shaft 36 connected with the movable hinge 33 rotates synchronously, so that the left heat insulation door or the right heat insulation door is driven to open or close outwards through the fixed hinge 31.
As shown in fig. 10, the opening driving device is used for driving the front thermal insulation door and the rear thermal insulation door, and the opening driving device has a structure that upper hinges 41 are respectively arranged on the left and right sides of the upper beam, synchronizing shaft fixing seats 47 are respectively arranged on the left and right sides of the lower beam, an opening and closing synchronizing shaft 48 is connected between the synchronizing shaft fixing seats 47, two ends of the opening and closing synchronizing shaft 48 respectively penetrate through the synchronizing shaft fixing seats 47 and are fixedly connected with the lower ends of opening and closing synchronizing swing arms 46 at corresponding positions, the upper ends of the opening and closing synchronizing swing arms 46 are simultaneously connected with piston rods of horizontally and fixedly arranged opening and closing hydraulic cylinders 45 and the bottom ends of synchronizing racks 42 through pin shafts, and the upper ends of the synchronizing racks 42 are movably connected with the upper hinges 41; a front heat insulation door or a rear heat insulation door is arranged between the two synchronous racks 42, and synchronous gears 44 connected to two sides of the front heat insulation door or the rear heat insulation door are meshed with the synchronous racks 42; lifting hydraulic cylinders 43 are arranged on two sides of the front heat insulation door 3 or the rear heat insulation door 4, one end of each lifting hydraulic cylinder 43 is movably connected with the upper cross beam, and a piston rod at the other end of each lifting hydraulic cylinder 43 is connected with the front heat insulation door 3 or the rear heat insulation door 4. The opening and closing hydraulic cylinder 45 acts, the synchronous rack 42 drives the front heat insulation door 3 or the rear heat insulation door 4 to rotate around the axis of the hinge 41, the front heat insulation door 3 or the rear heat insulation door 4 is driven to deflect, a space is formed between the front heat insulation door 3 and the upper platform and between the front heat insulation door and the lower platform, friction is prevented, then the lifting hydraulic cylinder 43 is started, the front heat insulation door or the rear heat insulation door is driven to move up and down through the meshing of the synchronous gear 44 and the synchronous rack 42, and the closing and opening actions are achieved.
Claims (7)
1. The utility model provides a thermal forming furnace outside heat preservation system, thermal forming furnace include entablature and bottom end rail, are supported by four stands (5) between entablature and bottom end rail, and the platform is connected in the below swing joint of entablature, and the platform is connected down to the top of bottom end rail, and the insulated door is located around the upper mounting plate and the platform down to form the high temperature zone of heating between upper mounting plate and the platform down and keep warm, its characterized in that: the heat insulation door comprises a left heat insulation door (1), a right heat insulation door (2), a front heat insulation door (3) and a rear heat insulation door (4); two of the upright columns (5) are respectively positioned in the front-back direction of the left side of the left heat insulation door (1), and the other two upright columns (5) are respectively positioned in the front-back direction of the right side of the right heat insulation door (2); the left heat insulation door (1) and the right heat insulation door (2) are respectively connected with the upright post (5) through a side driving device; the front heat insulation door (3) and the rear heat insulation door (4) are respectively connected with the upper cross beam and the lower cross beam through opening driving devices; the heat insulation door is sequentially provided with a superhard heat insulation layer (6) and a heat insulation cotton layer (7) from the inside to the outside of the furnace; a plurality of insulation board pull rods (11) are arranged between the superhard insulation layer (6) and the insulation cotton layer (7) at equal intervals, and one ends of the insulation board pull rods (11) are limited in grooves formed in the superhard insulation layer (6) through insulation board pressing plates (13); the heat insulation board locating pipe (16) and the low-expansion ceramic locating pipe (15) are coaxially and sequentially arranged on the periphery of the heat insulation board pull rod (11), the heat insulation board locating pipe (16) is located in the superhard heat insulation layer (6) and the heat insulation cotton layer (7), the low-expansion ceramic locating pipe (15) is located in the heat insulation cotton layer (7), one end of the low-expansion ceramic locating pipe (15) is supported on the surface of the superhard heat insulation layer (6), and the other end of the low-expansion ceramic locating pipe is supported on the end face of a connecting head arranged at the outer end part of the heat insulation board locating pipe (16); the joints of the insulation board positioning pipes (16) at the same height on the same insulation door are welded with the broadside surfaces of the square pipes (14) in the length direction, and the surfaces of the square pipes (14) connected with the insulation board positioning pipes (16) are embedded in the insulation cotton layer (7); be equipped with the opening on the surface length direction of square pipe (14), a plurality of lock nut is connected with the other end that corresponds heated board pull rod (11) of position through square pipe (14) opening, is equipped with high temperature expansion compensation spring (12) at heated board pull rod (11) tip, and the one end of high temperature expansion compensation spring (12) is supported in square pipe (14), and the other end of high temperature expansion compensation spring (12) supports on lock nut.
2. The thermoforming oven external insulation system of claim 1, wherein: the super-hard heat-insulating layer (6) is an aluminum silicate super-hard plate, and the heat-insulating cotton layer (7) is made of aluminum silicate fiber cotton.
3. The thermoforming oven external insulation system of claim 1, wherein: annular rectangular frames (17) and annular water cooling pipes (18) are arranged in parallel around each heat insulation door along the thickness direction of the heat insulation door, the water cooling pipes (18) are positioned between the super-hard heat insulation layer (6) and the rectangular frames (17), pipe joints (19) are respectively arranged on the upper part and the lower part of the heat insulation door, and the pipe joints (19) penetrate through the rectangular frames (17) and are communicated with the water cooling pipes (18).
4. The thermoforming oven external insulation system of claim 1, wherein: elastic heat preservation strips (20) are arranged on the contact surfaces of an upper platform of the thermal forming furnace and each heat insulation door, the elastic heat preservation strips (20) are connected in grooves on the periphery of the upper platform through bolts, heat preservation springs (21) are arranged in the grooves, and the end parts of the heat preservation springs (21) are supported on the inner end surfaces of the elastic heat preservation strips (20); the outer end face of the elastic heat preservation strip (20) is contacted with the surface of the heat insulation door at the corresponding position.
5. The thermoforming oven external insulation system of claim 1, wherein: the outer surface of the heat-insulating cotton layer (7) is connected with a layer of anti-scald protection net (8) through a plurality of reinforcing frames (22) which are arranged in parallel, and an air heat-insulating layer (9) is formed between the anti-scald protection net (8) and the heat-insulating cotton layer (7).
6. The thermoforming oven external insulation system of claim 1, wherein: the side driving device is structurally characterized in that four fixed hinges (31) are respectively and rectangularly distributed on the outer surfaces of the left heat insulation door (1) and the right heat insulation door (2), and each fixed hinge (31) is respectively connected with the tail end of the vertical edge of an L-shaped movable hinge (33); the tail end of the horizontal edge of the upper movable hinge (33) is respectively connected with a piston rod of a side starting hydraulic cylinder (34), and the side starting hydraulic cylinder (34) is connected with an upright post (5) with a corresponding position through an upright post hoop (32); the middle part of the horizontal edge of the upper movable hinge (33) is movably connected with the upper end of a heat insulation door pull rod (35), and the lower end of the heat insulation door pull rod (35) is movably connected with the tail end of the horizontal edge of the lower movable hinge (33); a side opening synchronous shaft (36) is connected between the two movable hinges (33) corresponding to the same height position.
7. The thermoforming oven external insulation system of claim 1, wherein: the opening driving device is structurally characterized in that upper hinges (41) are respectively arranged on the left side and the right side of an upper cross beam, synchronizing shaft fixing seats (47) are respectively arranged on the left side and the right side of a lower cross beam, opening and closing synchronizing shafts (48) are connected between the synchronizing shaft fixing seats (47), two ends of each opening and closing synchronizing shaft (48) respectively penetrate through the synchronizing shaft fixing seats (47) and are fixedly connected with the lower ends of opening and closing synchronizing swing arms (46) at corresponding positions, the upper ends of the opening and closing synchronizing swing arms (46) are simultaneously connected with piston rods of horizontally and fixedly arranged opening and closing hydraulic cylinders (45) and the bottom ends of synchronizing racks (42) through pin shafts, and the upper ends of the synchronizing racks (42) are movably connected with the upper hinges (41); a front heat insulation door (3) or a rear heat insulation door (4) is arranged between the two synchronous racks (42), and synchronous gears (44) connected with the two sides of the front heat insulation door (3) or the rear heat insulation door (4) are meshed with the synchronous racks (42); lifting hydraulic cylinders (43) are respectively arranged on two sides of the front heat insulation door (3) or the rear heat insulation door (4), one end of each lifting hydraulic cylinder (43) is movably connected with the upper cross beam, and a piston rod at the other end of each lifting hydraulic cylinder (43) is connected with the front heat insulation door (3) or the rear heat insulation door (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111066051.0A CN113758270A (en) | 2021-09-13 | 2021-09-13 | Thermal forming furnace external heat preservation system |
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| CN202111066051.0A CN113758270A (en) | 2021-09-13 | 2021-09-13 | Thermal forming furnace external heat preservation system |
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| CN112412286A (en) * | 2020-10-30 | 2021-02-26 | 北京航星机器制造有限公司 | High temperature resistant heat preservation door |
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Application publication date: 20211207 |