Thermal insulation board secondary foaming production line

Abstract

The invention discloses an insulation board secondary foaming production line which comprises an extruder, an adjustable primary foaming mechanism, a first conveying mechanism, an adjustable trimming mechanism, a mold oil coating mechanism, an adjustable secondary foaming mechanism and a second conveying mechanism which are sequentially arranged in the machining direction of an insulation board. After being foamed and formed through the adjustable primary foaming mechanism, the insulation board passes through the adjustable trimming mechanism to be subjected to trimming operation and then enters the adjustable secondary foaming mechanism to be subjected to secondary foaming. According to the foaming device, secondary foaming can be effectively carried out on the insulation board, the performance of the insulation board is improved, the product yield is increased, and the situation that raw materials are wasted is avoided. The invention is suitable for the technical field of secondary foaming of the insulation board in production and processing of the insulation board.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of insulation board production and processing, in particular to an insulation board secondary foaming production line. BACKGROUND

[0002] In the production and processing technology of insulation boards, the raw materials for producing insulation boards are generally extruded by an extruder and transported into a foaming box, and then foaming operation is performed in the foaming box to prepare insulation boards, and then the insulation boards are cut according to requirements to obtain plate materials of required sizes. However, due to problems such as uneven mixing of raw materials, temperature / pressure control deviation, etc., the first foaming may result in different bubble hole sizes and disordered distribution, and even connected holes (bubble holes are connected). Moreover, if the first foaming is not properly controlled, local density may be too high (material waste) or too low (fragile structure). In addition, during construction or use, if the dimensional stability of the insulation board is poor (such as thermal shrinkage, moisture expansion), it may cause problems such as wall cracking and insulation layer falling off. The material after the first foaming may have un-released stress or residual foaming agent, which is prone to deformation when the environment changes. At the same time, the first foaming is prone to cause product unqualification (such as bubble hole defects, density exceeding standard) due to process fluctuation, which directly causes waste of raw materials. Therefore, there is an urgent need for a secondary foaming equipment for insulation boards to perform secondary foaming on the insulation boards after the first foaming, improve the performance of the insulation boards, improve the yield of the products, and avoid the occurrence of waste of raw materials. SUMMARY

[0003] The present application provides an insulation board secondary foaming production line to effectively perform secondary foaming on the insulation boards, improve the performance of the insulation boards, improve the yield of the products, and avoid the occurrence of waste of raw materials.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] An insulation board secondary foaming production line, comprising an extruder, an adjustable first foaming mechanism, a first conveying mechanism, an adjustable edge cutting mechanism, a demolding oil coating mechanism, an adjustable secondary foaming mechanism and a second conveying mechanism arranged in sequence along the processing direction of the insulation board. After the insulation board is foamed and formed by the adjustable first foaming mechanism, it passes through the adjustable edge cutting mechanism and performs edge cutting operation, and then enters the adjustable secondary foaming mechanism to perform secondary foaming.

[0006] Further, the extruder comprises two extrusion rollers symmetrically rotatably installed at the lower part of an extrusion kettle, the upper end of the extrusion kettle is in an open state, extrusion blades extending along the axis thereof are constructed on the outer peripheral wall of each of the extrusion rollers, mounting shafts are respectively constructed at the same end of the two extrusion rollers, transmission gears are respectively assembled on the two mounting shafts, and a transmission wheel is assembled on the selected mounting shaft.

[0007] Further, the adjustable one-time foaming mechanism comprises a heating foaming part and an adjustable shaping part, the inlet end of the heating foaming part is connected with the outlet end of the extruder, and the inlet end of the adjustable shaping part is connected with the outlet end of the heating foaming part.

[0008] Further, the adjustable shaping part comprises a vertical plate arranged at the outlet end of the heating foaming part, a bottom shaping plate is arranged at the lower end of the vertical plate, a top shaping plate is arranged above the bottom shaping plate, a first vertical adjusting lead screw is rotatably connected to the top shaping plate, the first vertical adjusting lead screw is threadedly connected with the connecting lug at the upper end of the vertical plate, two telescopic lateral shaping plates are arranged between the bottom shaping plate and the top shaping plate, a discharging channel is formed between the bottom shaping plate, the top shaping plate and the two telescopic lateral shaping plates, and a through hole is arranged in the middle of the vertical plate and communicates with the discharging channel.

[0009] Further, the adapter plates are detachably connected to the two sides of the vertical plate, one end of the first horizontal adjusting lead screw is rotatably connected with the corresponding telescopic lateral shaping plate in the direction of the vertical telescopic lateral shaping plate, and the first horizontal adjusting lead screw is threadedly connected with the corresponding adapter plate, the telescopic lateral shaping plate comprises a first lateral plate body whose lower end surface is in contact with the upper end surface of the bottom shaping plate, a second lateral plate body is elastically inserted into the upper end of the first lateral plate body, and the upper end surface of the second lateral plate body is in contact with the lower end surface of the top shaping plate.

[0010] Further, the first conveying mechanism and the second conveying mechanism are the same in structure, the first conveying mechanism comprises a lower conveying roller group and an upper conveying roller group which are vertically spaced, a conveying channel is formed between the lower conveying roller group and the upper conveying roller group, two second vertical adjusting lead screws are symmetrically arranged at the two sides of the first conveying mechanism, the lower end of each second vertical adjusting lead screw is rotatably connected with the lower conveying roller group, and the second vertical adjusting lead screw is threadedly connected with the upper conveying roller group.

[0011] Further, the demolding oil coating mechanism comprises a first coating roller and a second coating roller which are vertically downward spaced, a coating channel is formed between the first coating roller and the second coating roller, a fixing seat is rotatably connected with each end of the first coating roller, an adapter seat is rotatably connected with each end of the second coating roller, and each adapter seat is connected with the upper conveying roller group.

[0012] Further, the adjustable trimming mechanism comprises two assembly seats symmetrically arranged between the two adapters, an electric cutting wire is installed on each assembly seat, a second transverse adjusting screw rod is rotationally connected to each assembly seat, the second transverse adjusting screw rod is threadedly connected with the corresponding assembly seat, a guide rod parallel to the second transverse adjusting screw rod is fixed on the assembly seat, and the guide rod movably penetrates through the corresponding assembly seat.

[0013] Further, the adjustable secondary foaming mechanism comprises a heating top die arranged above the heating bottom die, two telescopic heating side dies are symmetrically arranged between the heating bottom die and the heating top die, a longitudinal beam is arranged above the heating top die, and the heating top die is connected with the longitudinal beam through a vertical oil cylinder.

[0014] Further, the telescopic heating side die comprises a first lateral die body with a lower end surface in contact with an upper end surface of the heating bottom die, a second lateral die body is elastically inserted into an upper end of the first lateral die body, an upper end surface of the second lateral die body is in contact with a lower end surface of the heating top die, a third transverse adjusting screw rod is rotationally connected to each end of the first lateral die body in the length direction, the third transverse adjusting screw rod is threadedly connected with an adapter lug, and the adapter lug is connected with the heating bottom die.

[0015] Compared with the prior art, the application has the following technical progress: the adjustable primary foaming mechanism is used to foam the insulation board once, and the adjustable primary foaming mechanism is adjusted according to the requirement, so that the width and thickness of the insulation board foamed once from the outlet end reach the predetermined range; then the first conveying mechanism is used to convey the insulation board to the adjustable edge cutting mechanism, the demolding oil coating mechanism and the adjustable secondary foaming mechanism in sequence, the adjustable edge cutting mechanism is adjusted according to the width requirement of the insulation board entering the adjustable secondary foaming mechanism, so that the two sides of the insulation board are cut, the insulation board is coated with demolding oil on the upper and lower surfaces by the demolding oil coating mechanism, and then the insulation board enters the adjustable secondary foaming mechanism, the adjustable secondary foaming mechanism is adjusted in advance before the insulation board enters the adjustable secondary foaming mechanism, so that the adjustable secondary foaming mechanism is adapted to the model and size of the insulation board, and the insulation board is foamed again in the adjustable secondary foaming mechanism. The secondary foaming can make the under-expanded cells grow further by precisely controlling the temperature, pressure or supplementing the foaming agent, and make the over-large cells uniform, so that the proportion of the connected cells is reduced. After the proportion of the closed cells is increased, the path of the heat transfer through the air convection is blocked, the thermal conductivity can be reduced by 1%-5%, and the thermal insulation performance is improved significantly. The secondary foaming can make the overall density of the material more uniform without damaging the overall structure, and can reduce the density (self-weight) while ensuring the compression and bending strength by optimizing the cell support structure. After the secondary foaming, the density of the insulation board can be reduced by 5%-10%, but the compression strength can still meet the bearing requirements of the building wall or roof. During the secondary foaming process, the internal stress of the material is fully released, the residual foaming agent is further reacted or volatilized, and the molecular structure is more stable; for example, the dimensional change rate of the XPS extruded board after the secondary foaming at 70 DEG C high temperature can be controlled within 1%, which is much lower than that of the primary foaming product (may reach 3%-5%). The secondary foaming can repair and optimize the "semi-finished product" of the primary foaming, so that the originally unqualified product meets the qualified standard by supplementing the foaming agent or adjusting the parameters, thereby improving the raw material utilization rate and reducing the production cost; in the XPS extruded board production, the secondary foaming can improve the qualified rate by 10%-15%, and significantly reduce the waste generation. As can be seen from the above, the application can effectively foam the insulation board twice, improve the performance of the insulation board, improve the yield of the product, and avoid the waste of raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application together with the embodiments thereof, and explain the principles of the application, and do not limit the application.

[0017] In the drawings:

[0018] Figure 1Structure schematic view of the embodiment of the present application;

[0019] Figure 2 Structure schematic view of the extruder of the embodiment of the present application;

[0020] Figure 3 Structure schematic view of the adjustable primary foaming mechanism of the embodiment of the present application;

[0021] Figure 4 Structure schematic view of the adjustable primary foaming mechanism of the embodiment of the present application after removing the two telescopic lateral shaping plates;

[0022] Figure 5 Structure schematic view of the telescopic lateral shaping plate, the first transverse adjusting screw rod and the adapter plate connection of the adjustable primary foaming mechanism of the embodiment of the present application;

[0023] Figure 6 Partial structure side view of the adjustable primary foaming mechanism of the embodiment of the present application;

[0024] Figure 7 Structure sectional view of the telescopic lateral shaping plate of the adjustable primary foaming mechanism of the embodiment of the present application;

[0025] Figure 8 Structure schematic view of the first conveying mechanism of the embodiment of the present application;

[0026] Figure 9 Structure side view of the first conveying mechanism of the embodiment of the present application;

[0027] Figure 10 Structure front view of the first conveying mechanism of the embodiment of the present application;

[0028] Figure 11 Structure schematic view of the adjustable trimming mechanism and the demolding oil coating mechanism of the embodiment of the present application;

[0029] Figure 12 Structure schematic view of the adjustable secondary foaming mechanism of the embodiment of the present application;

[0030] Figure 13 Structure front view of the adjustable secondary foaming mechanism of the embodiment of the present application;

[0031] Figure 14 Partial structure schematic view of the adjustable secondary foaming mechanism of the embodiment of the present application.

[0032] Labeling components: 100-extruder, 101-extrusion kettle, 102-extrusion roller, 103-extrusion blade, 104-mounting shaft, 105-drive gear, 106-drive wheel, 200-adjustable primary foaming mechanism, 201-heating foaming part, 202-fixed side, 203-first vertical plate body, 204-connection ear, 205-second vertical plate body, 206-bottom shaping plate, 207-fixed ear, 208-adapter plate, 209-first lateral plate body, 210-inserting cavity, 211-second lateral plate body, 212-connection protrusion, 213-first connection spring, 214-limiting plate, 215-limiting port, 216-first horizontal adjustment lead screw, 217-operation hand wheel A, 218-top shaping plate, 219-limiting strip, 220-first vertical adjustment lead screw, 221-operation hand wheel B, 222-discharge channel, 300-first conveying mechanism, 301-lower seat body, 302-upper seat body, 303-second vertical adjustment lead screw, 304-operation hand wheel C, 305-first mounting ear, 306-lower roller body, 307-upper roller body, 308-first shaft rod, 309-first wheel body, 310-second shaft rod, 311-second wheel body, 312-first drive chain, 313-third shaft rod, 314-third wheel body, 315-fourth shaft rod, 316-fourth wheel body, 317-second drive chain, 318-first power motor, 319-second power motor, 320-conveying channel, 400-adjustable edge cutting mechanism, 401-adapter seat, 402-assembly seat, 403-electric cutting wire, 404-second horizontal adjustment lead screw, 405-operation hand wheel D, 406-guide rod, 407-second mounting ear, 500-demolding oil coating mechanism, 501-fixed seat, 502-first coating roller, 503-second coating roller, 504-oil guide hose, 505-joint pipe, 600-adjustable secondary foaming mechanism, 601-heating bottom mold, 602-first lateral mold body, 603-second lateral mold body, 604-second connection spring, 605-adapter ear, 606-third horizontal adjustment lead screw, 607-operation hand wheel E, 608-heating top mold, 609-foaming chamber, 610-longitudinal beam, 611-vertical oil cylinder, 700-second conveying mechanism. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0034] The present application discloses a thermal insulation board secondary foaming production line, which comprises Figures 1-14The adjustable first foaming mechanism 200 is used for foaming and forming the thermal insulation board, the adjustable edge cutting mechanism 400 is used for cutting the edges of the thermal insulation board, the demolding oil coating mechanism 500 is used for coating demolding oil on the upper and lower surfaces of the thermal insulation board, and the adjustable second foaming mechanism 600 is used for second foaming of the thermal insulation board. The working principle and advantages of the present application are as follows: the adjustable first foaming mechanism 200 is used for foaming the thermal insulation board once, and the adjustable first foaming mechanism 200 is adjusted according to the requirements, so that the width and thickness of the thermal insulation board foamed once from the outlet end reach the predetermined range; the first conveying mechanism 300 is used for conveying the thermal insulation board to the adjustable edge cutting mechanism 400, the demolding oil coating mechanism 500 and the adjustable second foaming mechanism 600 in turn, the adjustable edge cutting mechanism 400 is adjusted according to the width requirement of the thermal insulation board entering the adjustable second foaming mechanism 600, so that the two sides of the thermal insulation board are cut, the thermal insulation board is cut by the demolding oil coating mechanism 500, the demolding oil coating mechanism 500 coats demolding oil on the upper and lower surfaces of the thermal insulation board, then the thermal insulation board enters the adjustable second foaming mechanism 600, the adjustable second foaming mechanism 600 is adjusted in advance before entering the adjustable second foaming mechanism 600, so that it is adapted to the model and size of the thermal insulation board, and the thermal insulation board is foamed again in the adjustable second foaming mechanism 600. The second foaming can make the unexpanded cells grow further by accurately controlling the temperature, pressure or supplementing the foaming agent, and can make the oversized cells uniform and reduce the proportion of connected pores. After the proportion of closed cells is increased, the path of heat transfer through air convection is blocked, the thermal conductivity can be reduced by 1%-5%, and the thermal insulation performance is significantly improved. The second foaming can make the overall density of the material more uniform without damaging the overall structure, and can reduce the density (self weight) while ensuring the compression and bending strength by optimizing the cell support structure. After the thermal insulation board is foamed twice, the density can be reduced by 5%-10%, but the compression strength can still meet the bearing requirements of building walls or roofs. During the second foaming process, the internal stress of the material is fully released, the residual foaming agent is further reacted or volatilized, and the molecular structure is more stable; for example, the dimensional change rate of the XPS extruded board foamed twice at 70 DEG C high temperature can be controlled within 1%, which is much lower than that of the first foaming product (may reach 3%-5%). The second foaming can repair and optimize the “semi-finished product” of the first foaming, supplement the foaming agent or adjust the parameters, so that the originally unqualified product meets the qualified standard, thereby improving the utilization rate of raw materials and reducing the production cost; in the production of XPS extruded board, the second foaming can improve the qualified rate by 10%-15%, and significantly reduce the waste.Therefore, the present application can effectively perform secondary foaming on the thermal insulation board, improve the performance of the thermal insulation board, improve the yield of the product, and avoid the waste of raw materials.

[0035] As a preferred embodiment of the present application, as shown in Figure 2 The upper end of the extrusion kettle 101 is in an open state, and an extrusion blade 103 is configured on the outer peripheral wall of each extrusion roller 102, which extends along the axis of the extrusion roller 102 to both ends of the extrusion roller 102. In this embodiment, mounting shafts 104 are respectively configured at the same end of the two extrusion rollers 102, and transmission gears 105 are respectively assembled on the two mounting shafts 104, which are meshed with each other, and a transmission wheel 106 is assembled on one of the mounting shafts 104. In this embodiment, by driving the transmission wheel 106 to rotate, the two extrusion rollers 102 are relatively rotated under the action of the two transmission gears 105, so that the raw materials are continuously and stably extruded into the adjustable primary foaming mechanism 200 under the action of the extrusion blade 103, ensuring that the raw materials uniformly enter the adjustable primary foaming mechanism 200 and are uniformly primary foamed by the adjustable primary foaming mechanism 200.

[0036] As a preferred embodiment of the present application, as shown in Figures 3-7As shown, the adjustable primary foaming mechanism 200 comprises a heating foaming part 201 and an adjustable shaping part. The heating foaming part 201 is provided with an electric heater, and a material passing channel is formed in the heating foaming part 201 and is isolated from the electric heater. The electric heater heats the material passing channel by heat transfer, so that the raw material is heated in the heating foaming part 201, and the raw material is foamed once during the process of passing through the heating foaming part 201 and the adjustable shaping part. The inlet end of the heating foaming part 201 is provided with a fixed edge 202 connected with the outlet end of the extruder 100, and the inlet end of the adjustable shaping part is connected with the outlet end of the heating foaming part 201. The adjustable shaping part of the embodiment comprises a vertical plate, a bottom shaping plate 206, a top shaping plate 218 and two telescopic lateral shaping plates. The vertical plate is arranged at the outlet end of the heating foaming part 201, the bottom shaping plate 206 is arranged at the lower end of the vertical plate, the top shaping plate 218 is arranged above the bottom shaping plate 206, a connecting lug 204 is arranged at the upper end of the vertical plate, a first vertical adjusting lead screw 220 is rotatably connected with the top shaping plate 218, the first vertical adjusting lead screw 220 is threadedly connected with the connecting lug 204 at the upper end of the vertical plate, and an operating hand wheel B 221 is arranged at the upper end of the first vertical adjusting lead screw 220. The two telescopic lateral shaping plates are arranged between the bottom shaping plate 206 and the top shaping plate 218, a material outlet channel 222 is formed between the bottom shaping plate 206, the top shaping plate 218 and the two telescopic lateral shaping plates, and a through opening is formed in the middle of the vertical plate and communicates with the material outlet channel 222. The vertical plate comprises a first vertical plate body 203 and a second vertical plate body 205 connected in sequence in the vertical direction, and the through opening is formed at the connection between the first vertical plate body 203 and the second vertical plate body 205. Fixed lugs 207 are arranged at both sides of the second vertical plate body 205, and adapter plates 208 are arranged at both sides of the vertical plate. Each adapter plate 208 is detachably connected with the corresponding fixed lug 207. First horizontal adjusting lead screws 216 are arranged at the ends of the two telescopic lateral shaping plates away from each other, one end of each first horizontal adjusting lead screw 216 is rotatably connected with the corresponding telescopic lateral shaping plate in the direction perpendicular to the telescopic lateral shaping plate, and the first horizontal adjusting lead screw 216 is threadedly connected with the corresponding adapter plate 208. An operating hand wheel A 217 is arranged at the other end of the first horizontal adjusting lead screw 216.The telescopic lateral shaping plate comprises a first lateral plate body 209 and a second lateral plate body 211, wherein the lower end surface of the first lateral plate body 209 is in contact with the upper end surface of the bottom shaping plate 206, an insertion cavity 210 is arranged in the first lateral plate body 209, the upper end of the insertion cavity 210 is in communication with the outside through the upper end of the first lateral plate body 209, the lower end of the second lateral plate body 211 is inserted into the insertion cavity 210 through the upper end of the first lateral plate body 209, a plurality of first connecting springs 213 are arranged in the insertion cavity 210 along the length direction of the insertion cavity 210, each first connecting spring 213 is vertically arranged, the lower end of the first connecting spring 213 is connected with the bottom wall of the insertion cavity 210, the upper end of the first connecting spring 213 is connected with the lower end of the second lateral plate body 211, the upper end surface of the second lateral plate body 211 is in contact with the lower end surface of the top shaping plate 218, one side of the first lateral plate body 209 is in contact with the surface of the second vertical plate body 205, and one side of the second lateral plate body 211 is in contact with the surface of the first vertical plate body 203. The working principle and advantages of the embodiment are that: the first vertical adjusting screw 220 is rotated to drive the top shaping plate 218 to move in the vertical direction, the height of the telescopic lateral shaping plate changes during the movement of the top shaping plate 218, and the vertical caliber of the discharging channel 222 is adjusted. The two first horizontal adjusting screws 216 are rotated to make the two telescopic lateral shaping plates close to or away from each other, and the horizontal caliber of the discharging channel 222 is adjusted. In this way, the thickness and width of the once foamed insulation board discharged from the discharging channel 222 can be adjusted to a predetermined range. In order to ensure that the second lateral plate body 211 and the top shaping plate 218 are synchronous, the gap is avoided, and the raw materials are prevented from overflowing, the connecting protrusions 212 are symmetrically arranged on the upper end of the second lateral plate body 211, the limiting plates 214 are detachably connected on the connecting protrusions 212, the limiting openings 215 are formed between the two connecting protrusions 212 and the two limiting plates 214, the limiting strips 219 are arranged on the lower end surface of the top shaping plate 218, the limiting strips 219 extend to the two sides of the top shaping plate 218 along the horizontal direction of the top shaping plate 218, and the limiting strips 219 are slidably connected with the two second lateral plate bodies 211 through the two limiting openings 215.

[0037] As a preferred embodiment of the present application, Figures 8-10As shown, the first conveying mechanism 300 and the second conveying mechanism 700 have the same structure. The first conveying mechanism 300 comprises a lower conveying roller set, an upper conveying roller set and two second vertical adjusting lead screws 303, wherein the lower conveying roller set and the upper conveying roller set are spaced apart in the vertical direction, and a conveying channel 320 is formed between the lower conveying roller set and the upper conveying roller set. The two second vertical adjusting lead screws 303 are symmetrically arranged on both sides of the first conveying mechanism 300, the lower end of each second vertical adjusting lead screw 303 is rotationally connected with the lower conveying roller set, and the second vertical adjusting lead screw 303 is threadedly connected with the upper conveying roller set, and an operating hand wheel C 304 is arranged at the upper end of each second vertical adjusting lead screw 303. In this embodiment, the second vertical adjusting lead screw 303 is driven to rotate, so as to drive the upper conveying roller set to move in the vertical direction, and thus the vertical caliber of the conveying channel 320 is adjusted, so as to facilitate the conveying work of the insulation boards with corresponding thickness. The specific structure of the lower conveying roller set is that the lower conveying roller set comprises two lower seat bodies 301 which are symmetrically arranged along the lateral direction of the insulation board, a plurality of lower roller bodies 306 are arranged between the two lower seat bodies 301 in the conveying direction of the insulation board, first shaft rods 308 are coaxially fixed at both axial ends of each lower roller body 306, each first shaft rod 308 is rotationally connected with the corresponding lower seat body 301, a first wheel body 309 is arranged on one of the first shaft rods 308, a second shaft rod 310 is arranged between the adjacent two first shaft rods 308, the second shaft rod 310 is rotationally connected with the corresponding lower seat body 301, a second wheel body 311 is arranged on the second shaft rod 310, the first wheel body 309 and the second wheel body 311 are sprockets, and all the first wheel bodies 309 and the second wheel bodies 311 are drivingly connected through a first transmission chain 312. A first power motor 318 is arranged on one of the lower seat bodies 301, and the output shaft of the first power motor 318 is coaxially connected with one of the first shaft rods 308. The first power motor 318 is controlled to drive all the lower roller bodies 306 to synchronously and uniformly rotate through the chain transmission. The upper conveying roller set of this embodiment comprises two upper seat bodies 302 which are symmetrically arranged along the lateral direction of the insulation board, a plurality of upper roller bodies 307 are arranged between the two upper seat bodies 302 in the conveying direction of the insulation board, third shaft rods 313 are coaxially fixed at both axial ends of each upper roller body 307, each third shaft rod 313 is rotationally connected with the corresponding upper seat body 302, a third wheel body 314 is arranged on one of the third shaft rods 313, a fourth shaft rod 315 is arranged between the adjacent two third shaft rods 313, the fourth shaft rod 315 is rotationally connected with the corresponding upper seat body 302, a fourth wheel body 316 is arranged on the fourth shaft rod 315, the third wheel body 314 and the fourth wheel body 316 are sprockets, and all the third wheel bodies 314 and the fourth wheel bodies 316 are drivingly connected through a second transmission chain 317.The second power motor 319 is installed on one of the upper seat bodies 302, and the output shaft of the second power motor 319 is coaxially connected with one of the third shaft rods 313. By controlling the action of the second power motor 319, all the upper roller bodies 307 are driven to rotate synchronously and in the same direction by the chain wheel transmission, and the rotating direction of the upper roller bodies 307 is opposite to that of the lower roller bodies 306, so that the insulation board gradually moves towards the adjustable edge cutting mechanism 400 by the roller pressing and pushing of the lower roller bodies 306 and the upper roller bodies 307.

[0038] As a preferred embodiment of the present application, as shown in Figure 11 The demolding oil coating mechanism 500 includes a first coating roller 502 and a second coating roller 503 which are spaced apart downward in the vertical direction, and a coating channel is formed between the first coating roller 502 and the second coating roller 503. The two ends of the first coating roller 502 are respectively rotatably connected with fixed seats 501 which are fixedly connected with the rack. The two ends of the second coating roller 503 are respectively rotatably connected with adapter seats 401, and the second mounting ears 407 are formed on each adapter seat 401. The first mounting ears 305 are formed on each upper seat body 302, and the second mounting ears 407 of the adapter seats 401 are fixedly connected with the first mounting ears 305 of the corresponding upper seat bodies 302 by a plurality of connecting bolts. In this embodiment, during the rotation of the second vertical adjusting lead screw 303, the vertical caliber of the conveying channel 320 changes to facilitate the passage of insulation boards of corresponding thicknesses. Meanwhile, during the vertical movement of the upper conveying roller group, the second coating roller 503 is moved in the vertical direction by the adapter seat 401, thereby adjusting the vertical caliber of the coating channel to facilitate the passage of insulation boards of corresponding thicknesses, and the demolding oil is coated on the upper and lower end faces of the insulation boards during the passage. In this embodiment, the first coating roller 502 and the second coating roller 503 are provided with oil guide hoses 504 at the same end, and the two ends of the oil guide hoses 504 are respectively fitted with adapter heads, one of which is rotatably connected with the axial end of the first coating roller 502, and the other of which is rotatably connected with the axial end of the second coating roller 503. The oil guide hoses 504 are communicated with joint pipes 505 which are connected with the outlet end of the oil supply pump. In this embodiment, the first coating roller 502 and the second coating roller 503 are respectively provided with oil guide cavities, and full oil guide holes are uniformly formed on the outer periphery of the first coating roller 502 and the second coating roller 503. A flexible coating layer is respectively provided on the outer periphery of the first coating roller 502 and the second coating roller 503, which is generally made of sponge or other materials that can absorb and seep liquid, thereby facilitating the full and uniform coating of the demolding oil on the surface of the insulation board, so that the insulation board can be smoothly separated from the adjustable secondary foaming mechanism 600 after the secondary foaming in the adjustable secondary foaming mechanism 600.

[0039] As a preferred embodiment of the present application, as shown inFigure 11 As shown, the adjustable trimming mechanism 400 comprises two assembling seats 402 and two electric cutting wires 403. The two assembling seats 402 are symmetrically arranged between the two adapter seats 401, and the two electric cutting wires 403 are respectively installed on the two assembling seats 402. A second transverse adjusting lead screw 404 is rotatably connected to each assembling seat 402, and the second transverse adjusting lead screw 404 is threadedly connected to the corresponding assembling seat 402. An operating hand wheel D 405 is assembled at the end of the second transverse adjusting lead screw 404. A guide rod 406 is fixed on the assembling seat 402, and the guide rod 406 is arranged in parallel with the second transverse adjusting lead screw 404 and movably passes through the corresponding assembling seat 402. In this embodiment, the two second transverse adjusting lead screws 404 are driven to rotate, so that the two assembling seats 402 are close to or away from each other, and the spacing between the two electric cutting wires 403 is adjusted, thereby achieving the purpose of trimming the edge of the insulation board according to the predetermined size.

[0040] As a preferred embodiment of the present application, as shown in Figures 12-14As shown, the adjustable secondary foaming mechanism 600 comprises a heating bottom die 601, a heating top die 608, a longitudinal beam 610, two vertical oil cylinders 611 and two telescopic heating side dies. The heating top die 608 is arranged above the heating bottom die 601, the two telescopic heating side dies are symmetrically arranged between the heating bottom die 601 and the heating top die 608, the longitudinal beam 610 is arranged above the heating top die 608, the heating top die 608 is connected with the longitudinal beam 610 through the two vertical oil cylinders 611, and a foaming chamber 609 is formed between the heating bottom die 601, the heating top die 608 and the two telescopic heating side dies. In this embodiment, the two vertical oil cylinders 611 are controlled to act synchronously, so that the heating top die 608 moves in the vertical direction, the vertical size of the foaming chamber 609 is adjusted, and the secondary foaming of the insulation board with different thicknesses is adapted. In this embodiment, different means are adopted to separate the insulation board after secondary foaming from the foaming chamber 609 according to the toughness of the prepared insulation board. Specifically, when the toughness of the insulation board is high, the second conveying mechanism 700 is controlled to act after the secondary foaming of the insulation board is completed, so as to convey the insulation board out of the adjustable secondary foaming mechanism 600. When the toughness of the insulation board is low, the vertical oil cylinder 611 is controlled to drive the heating top die 608 to open the foaming chamber 609 after the secondary foaming of the insulation board is completed, and the insulation board is taken out from above the foaming chamber 609. The telescopic heating side die of this embodiment comprises a first lateral die body 602 and a second lateral die body 603. The lower end surface of the first lateral die body 602 is in contact with the upper end surface of the heating bottom die 601. A connecting groove is formed in the first lateral die body 602 and extends downward in the vertical direction from the upper end of the first lateral die body 602. The lower end of the second lateral die body 603 is inserted into the connecting groove from the upper end of the first lateral die body 602. A plurality of second connecting springs 604 are arranged in the connecting groove along the length direction of the first lateral die body 602. The lower end of each second connecting spring 604 is connected with the bottom wall of the connecting groove, and the upper end of the second connecting spring 604 is connected with the lower end of the second lateral die body 603. The upper end surface of the second lateral die body 603 is in contact with the lower end surface of the heating top die 608. In this embodiment, a third adjusting screw 606 is rotatably connected to each end of the first lateral die body 602. Each third adjusting screw 606 is threadedly connected with a transfer lug 605, which is detachably connected with the heating bottom die 601. An operating hand wheel E 607 is arranged at the end of the third adjusting screw 606. In this embodiment, the third adjusting screw 606 is rotated to drive the first lateral die body 602 to move in the transverse direction of the foaming chamber 609, so as to adjust the transverse caliber of the foaming chamber 609 and realize the secondary foaming of the insulation board with corresponding width. In this embodiment, the heating top die 608 and the telescopic heating side die do not need to be limited. Since the secondary foaming of the insulation board does not cause large changes in thickness and width, the gap between the heating top die 608 and the telescopic heating side die is not caused.

[0041] It should be pointed out that the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the scope of protection of the claims of the present application.

Claims

1. A secondary foaming production line for thermal insulation panels, characterized in that: The extruder comprises two extrusion rollers symmetrically installed on the lower part of the extrusion kettle, the upper end of the extrusion kettle is in an open state, extrusion blades extending along the axis thereof are formed on the outer peripheral wall of each extrusion roller, mounting shafts are respectively formed on the same end of the two extrusion rollers, transmission gears are respectively assembled on the two mounting shafts, the two transmission gears are in mesh with each other, and a transmission wheel is assembled on the alternative mounting shaft.

2. The secondary foaming production line for thermal insulation board according to claim 1, characterized in that: The adjustable primary foaming mechanism comprises a heating foaming part and an adjustable shaping part, the inlet end of the heating foaming part is connected with the outlet end of the extruder, and the inlet end of the adjustable shaping part is connected with the outlet end of the heating foaming part.

3. The secondary foaming production line for thermal insulation board according to claim 1, characterized in that: The adjustable shaping part comprises a vertical plate formed at the outlet end of the heating foaming part, a bottom shaping plate is formed at the lower end of the vertical plate, a top shaping plate is arranged above the bottom shaping plate, a first vertical adjusting screw rod is rotatably connected to the top shaping plate, the first vertical adjusting screw rod is threadedly connected with the connecting lug at the upper end of the vertical plate, two telescopic lateral shaping plates are arranged between the bottom shaping plate and the top shaping plate, a discharging channel is formed between the bottom shaping plate, the top shaping plate and the two telescopic lateral shaping plates, and a guide opening is formed in the middle of the vertical plate and communicates with the discharging channel.

4. A secondary foaming production line for thermal insulation boards according to claim 3, characterized in that: A first lateral plate body is arranged on the bottom shaping plate, a second lateral plate body is elastically inserted into the first lateral plate body, and the upper end surface of the second lateral plate body is in contact with the lower end surface of the top shaping plate.

5. A secondary foaming production line for thermal insulation boards according to claim 4, characterized in that: The first conveying mechanism and the second conveying mechanism are the same in structure, the first conveying mechanism comprises a lower conveying roller group and an upper conveying roller group arranged at intervals in the vertical direction, a conveying channel is formed between the lower conveying roller group and the upper conveying roller group, two second vertical adjusting screw rods are symmetrically arranged on the two sides of the first conveying mechanism, the lower end of each second vertical adjusting screw rod is rotatably connected with the lower conveying roller group, and the second vertical adjusting screw rod is threadedly connected with the upper conveying roller group.

6. The secondary foaming production line for thermal insulation board according to claim 1, characterized in that: The demolding oil coating mechanism comprises a first coating roller and a second coating roller arranged at intervals in the vertical direction downward, a coating channel is formed between the first coating roller and the second coating roller, a fixing seat is rotatably connected to each end of the first coating roller, a connecting seat is rotatably connected to each end of the second coating roller, and each connecting seat is connected with the upper conveying roller group.

7. A secondary foaming production line for thermal insulation boards according to claim 6, characterized in that: ​ 8. A secondary foaming production line for thermal insulation boards according to claim 7, characterized in that: The adjustable trimming mechanism comprises two assembly seats symmetrically arranged between two adapters, an electric cutting wire is installed on each assembly seat, a second transverse adjusting screw rod is rotationally connected to each assembly seat, the second transverse adjusting screw rod is in threaded connection with the corresponding assembly seat, a guide rod parallel to the second transverse adjusting screw rod is fixed on the assembly seat, and the guide rod is movably arranged through the corresponding assembly seat.

9. The secondary foaming production line for thermal insulation board according to claim 1, characterized in that: The adjustable secondary foaming mechanism comprises a heating top die arranged above a heating bottom die, two telescopic heating side dies symmetrically arranged between the heating bottom die and the heating top die, and a longitudinal beam arranged above the heating top die, wherein the heating top die is connected with the longitudinal beam through a vertical oil cylinder.

10. A secondary foaming production line for thermal insulation boards according to claim 9, characterized in that: The telescopic heating side die comprises a first lateral die body with a lower end surface in contact with an upper end surface of the heating bottom die, a second lateral die body elastically inserted into an upper end of the first lateral die body, an upper end surface of the second lateral die body in contact with a lower end surface of the heating top die, and a third transverse adjusting screw rod rotationally connected to each end of the first lateral die body in the length direction, wherein the third transverse adjusting screw rod is in threaded connection with an adapter lug, and the adapter lug is connected with the heating bottom die.

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