Production system for heat insulation components for aircraft engine exhaust nozzles

Abstract

This invention discloses a heat insulation component specifically for aero-engine exhaust nozzles, comprising a first covering component, a second covering component, and a heat insulation material layer. The first covering component includes a bottom bearing area, a top bearing area, and a bending bearing area. The heat insulation material layer has two end heads, the thickness of which is greater than the thickness of the middle portion of the heat insulation material layer. An arc-shaped portion is formed at the connection between the end head and the middle portion of the heat insulation material layer, and the inner wall of the bending bearing area is in contact with this arc-shaped portion. By increasing the size of the two end heads of the heat insulation material layer, the end heads are made to fit snugly against the bending bearing area of ​​the first covering component, reducing the reduction in heat insulation performance caused by localized loading in the bending bearing area. This invention also discloses a production system for a dedicated heat insulation component for aero-engine exhaust nozzles. This system includes a support component, a flipping component, a bending component, an indentation component, and a hot-pressing component. The dedicated heat insulation component for aero-engine exhaust nozzles is processed using this production system.

Description

Technical Field

[0001] This invention relates to the manufacturing technology of aero-engine components, and in particular to a special heat insulation component for aero-engine tail nozzles and a heat insulation component manufacturing system. Background Technology

[0002] Thermal insulation components are generally used to prevent the effects of high-temperature heat damage from aircraft engines. Most existing thermal insulation components consist of two layers of cladding and an insulating layer, with the insulating layer positioned between the inner and outer cladding layers.

[0003] The prior art reference CN114014693A discloses that the heat insulation layer is located between the first stainless steel sheet metal layer and the second stainless steel sheet metal layer, the heat insulation layer is made of porous foamed composite material, and further discloses the specific composition of the heat insulation layer.

[0004] For example, patent CN107816601B also discloses that the heat insulation component is located inside the outer covering component, and also discloses various connection methods between the heat insulation component and the outer covering component. Among them, this patent adopts the method of first dissolving three sides of the outer covering component, then hot-pressing the heat insulation component into the outer covering component, and finally dissolving and sealing it.

[0005] Existing technology also connects the inner and outer cladding layers to the insulation layer through bending and edge wrapping. This method requires bending the outer cladding layer to wrap around the insulation layer. After bending, the deformation is minimal in the bottom area of ​​the outer cladding layer, slightly larger in the flanged area, and largest in the bending area. During the entire forming process, the bending area experiences significant localized loading, increasing the gap between the bending area and the insulation layer, thus affecting the overall insulation performance. In conclusion, the existing roll forming edge wrapping method needs further improvement. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention proposes a heat insulation component and a heat insulation component manufacturing system for aero-engine exhaust nozzles.

[0007] The technical solution of this invention is implemented as follows:

[0008] A heat insulation component for an aircraft engine exhaust nozzle includes a first covering, a second covering, and a heat insulation material layer, wherein the heat insulation material layer is located between the first covering and the second covering, characterized in that...

[0009] The first covering includes a bottom bearing area, a top bearing area, and a bending bearing area. The thermal insulation material layer has two ends, the thickness of which is greater than the thickness of the middle part of the thermal insulation material layer. The connection between the end and the middle part of the thermal insulation material layer has an arc-shaped portion. The inner wall of the bending bearing area is fitted with the arc-shaped portion. The thermal insulation material layer is composed of polymer resin and inorganic fiber body.

[0010] The first covering has a groove, and the second covering has a protrusion, or the first covering has a protrusion and the second covering has a groove, wherein the groove and the protrusion cooperate.

[0011] A production system for heat shield components for aircraft engine exhaust nozzles, characterized in that it comprises:

[0012] The support component includes a base frame on which a pair of correctors are mounted;

[0013] The flipping component includes a first hinge plate and a second hinge plate. The first hinge plate is provided with a support plate, which is used to clamp the first covering component.

[0014] The bending component includes a first cylinder and a pressure roller plate. The output shaft of the first cylinder is connected to the pressure roller plate, which contacts one side of the second hinge plate and is used to drive the second hinge plate to rotate toward the first hinge plate.

[0015] The indentation component includes a second cylinder and an indentation structure, wherein the indentation structure is connected to the output shaft of the second cylinder, and in one state, the indentation structure is in contact with the arc-shaped portion;

[0016] The hot pressing component includes a limiting frame, a third cylinder, and a hot pressing plate. The output shaft of the third cylinder is connected to the hot pressing plate. The limiting frame is used to limit the offset of the hot pressing plate. In one state, the hot pressing plate is in contact with the upper surface of the top bearing area of ​​the first covering component.

[0017] In this production system of the present invention, the flipping component further includes a slide rail mounted above the base frame. When installing the slide rail, the corrector causes the slide rail to be horizontally mounted on the base frame. The slide rail is provided with a slider, and a first hinge plate is mounted on the slider. The slide rail is provided with two sliders, and a first hinge plate is mounted on each slider. The slider is used to adjust the two first hinge plates to move closer to or further apart from each other.

[0018] In this production system of the present invention, the first hinge plate and the second hinge plate are connected by a hinge point, at which a spiral spring for resetting the second hinge plate and an angle sensor for detecting the deflection angle of the second hinge plate are provided.

[0019] In this production system of the present invention, the flipping component further includes an adjuster installed at one end of the top plate. The adjuster mainly consists of a mounting bracket, a fixing member, a connecting bracket, an adjusting member, a moving rod, a moving plate, and a limiting plate.

[0020] The mounting bracket is connected to the base frame via a fastener. A connecting bracket is fixed above the mounting bracket. A movable rod is slidably connected to the connecting bracket, and a movable plate is fixed to this movable rod. A limiting plate is connected to one end of the movable plate.

[0021] The adjusting component is installed on one side of the connecting frame. The adjusting component is used to control the sliding of the moving rod. The moving plate is also provided with a scale plate for observing the moving stroke of the moving plate.

[0022] In this production system of the present invention, the bending component further includes a first movable component, which is detachably connected to the bottom of the base frame. The tail end of the first cylinder is hinged to the first movable component. The output shaft of the first cylinder is fixedly mounted with a connecting shaft. The connecting shaft is hinged to a hinge block, which is fixedly mounted below the pressure roller plate.

[0023] In this production system of the present invention, the indentation component further includes a support rod, which is fixedly connected to the base frame. A support member is slidably connected to the support rod, and a rotating wheel is provided on the support member. The rotating wheel is used to adjust the position of the support member on the support rod. An extension block is also connected to one end of the support member. The extension block is connected to the side of the second cylinder, and the output shaft of the second cylinder is connected to the indentation structure via an extension plate.

[0024] In this production system of the present invention, the indentation structure consists of a fastener and an indentation element, the indentation element being detachable and replaceable, wherein the indentation element is used to process the arc-shaped portion on the heat insulation material layer.

[0025] In this production system of the present invention, the indentation part has an arc-shaped groove in the middle and an arc-shaped pressure head at the end of the indentation part away from the fastener. In one state, the arc-shaped pressure head is in contact with the arc-shaped part on the heat insulation material layer.

[0026] The heat insulation component and heat insulation component manufacturing system for the tail nozzle of an aircraft engine according to the present invention have the following beneficial effects:

[0027] The heat insulation component for the tail nozzle of an aero-engine of the present invention increases the two ends of the heat insulation material layer so that the ends fit into the bending bearing area of ​​the first covering component, thereby reducing the decrease in heat insulation performance when local loading occurs in the bending bearing area.

[0028] The production system for a heat insulation component for an aero-engine exhaust nozzle disclosed in this invention first processes an arc-shaped groove on a first covering component, then presses an arc-shaped portion on the lower surface of the heat insulation material layer through the arc-shaped groove, then processes an arc-shaped portion on the upper surface of the heat insulation material layer, and finally completely bends the first covering component to the upper surface of the heat insulation material layer, thereby further reducing the gap between the first covering component and the heat insulation material layer. Attached Figure Description

[0029] Figure 1 A schematic diagram of the bending of traditional thermal insulation components;

[0030] Figure 2 This is a schematic diagram of the bending of the heat insulation component of the present invention;

[0031] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0032] Figure 4 This is a schematic diagram of the production system of the present invention;

[0033] Figure 5 This is a schematic diagram of the production system of the present invention from one angle;

[0034] Figure 6 for Figure 5 A partial structural diagram, mainly showing the bending component;

[0035] Figure 7 This is a schematic diagram of one state of the flipping component of the present invention;

[0036] Figure 8 This is a schematic diagram of the regulator of the present invention;

[0037] Figure 9 This is a partial structural schematic diagram of the indentation component of the present invention;

[0038] Figure 10 This is a schematic diagram showing the indentation component of the present invention in use;

[0039] Figure 11 This is a schematic diagram of the hot-pressed state of the thermal insulation component of the present invention.

[0040] The reference numerals in the attached figures are as follows: 1-Conventional insulation component, 11-Bottom area, 12-Flanged area, 13-Bending area, 14-Insulation component, 15-Rolling cylinder, 2-Improved insulation component, 21-First covering component, 22-Second covering component, 23-Insulation material layer, A1-Bottom bearing area, B2-Top bearing area, C3-Bending bearing area, D4-Arc-shaped part, E5-End head, F6-Groove, G7-Protrusion, 30-Production system, 31-Support component, 311-Base frame, 312-Cast wheel, 313-Grid plate, 314-Corrector, 32-Flipping component, 321-Slide rail, 322-Slider, 323-First hinge plate, 324-Bearing plate, 325-Top plate, 326-Second hinge plate, 327-Hinge point, 328-Adjuster, 328'1-Insulation Mounting frame, 328'2-fixing component, 328'3-connecting frame, 328'4-adjusting component, 328'5-moving rod, 328'6-moving plate, 328'7-scale plate, 328'8-limiting plate, 33-bending component, 331-first moving component, 332-first cylinder, 333-connecting shaft, 334-hinge block, 335-pressure roller plate, 34-indentation component, 341-support rod, 342-support component, 343-rotating wheel, 344-extension block, 345-second cylinder, 346-extension plate, 347-indentation structure, 347'1-fastener, 347'2-indentation component, 347'3-arc groove, 347'4-arc pressure head, 35-hot pressing component, 351-limiting frame, 352-third cylinder, 353-hot pressing plate. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0042] Existing technology uses bending and edge-wrapping to connect the inner and outer layers of the cladding to the insulation layer. This type of connection is mainly used in critical locations such as engine mounting points or corners. Figure 1 As shown, in a conventional heat insulation component 1, the heat insulation component 14 is edged by bending the covering component using a rolling cylinder 15. The covering component includes a bottom area 11, a flanged area 12, and a bending area 13. After bending, the bottom area 11 of the outer covering component experiences the least deformation, the flanged area 12 experiences slightly greater deformation, and the bending area 13 experiences the greatest deformation. During the entire forming process, the bending area 13 experiences significant localized loading, increasing the gap between the bending area 13 and the heat insulation component 14. This type of edge-wrapping is most prone to defects, often resulting in wavy wrinkling and warping at the corners. Referring to CN107816601B, reducing the thermal bridge in the vacuum heat insulation component can improve its insulation performance. This invention further improves upon this process. Example 1

[0043] like Figures 2 to 3 As shown, this invention discloses a heat insulation component specifically for aircraft engine exhaust nozzles. The heat insulation component 2 includes a first covering 21, a second covering 22, and a heat insulation material layer 23, with the heat insulation material layer 23 located between the first covering 21 and the second covering 22. The first covering 21 includes a bottom bearing area A1, a top bearing area B2, and a bending bearing area C3.

[0044] Without bending and edge binding, the bottom bearing area A1, top bearing area B2, and bending bearing area C3 of the first covering 21 are on the same horizontal line. The thermal insulation layer 23 has two end heads E5, the thickness of which is greater than the thickness of the middle part of the thermal insulation layer 23, meaning the ends of the thermal insulation layer 23 are larger. An arc-shaped portion D4 is formed at the connection between the end head E5 and the middle part of the thermal insulation layer 23, and the inner wall of the bending bearing area C3 is in contact with this arc-shaped portion D4. The thermal insulation layer 23 is composed of polymer resin and inorganic fiber body. By increasing the size of the two end heads of the thermal insulation layer, the end heads are made to fit in contact with the bending bearing area of ​​the first covering, reducing the decrease in thermal insulation performance caused by localized loading in the bending bearing area.

[0045] The first covering 21 has a groove F6, and the second covering 22 has a protrusion G7. Alternatively, the first covering 21 has a protrusion G7, and the second covering 22 has a groove F6, with the groove F6 engaging with the protrusion G7.

[0046] After the groove F6 and protrusion G7 on the first covering part 21 and the second covering part 22 are joined, their mating joints are welded. Compared with the welding method in the prior art CN107816601B, this heat insulation component of the present invention transfers the weld to one side surface, ensuring the stability of the weld and further improving the heat insulation performance. Example 2

[0047] Based on the above embodiments, the present invention further discloses a production system for a special heat insulation component for aero-engine exhaust nozzles. This production system is used to manufacture the special heat insulation component for aero-engine exhaust nozzles disclosed in the above embodiments. Figures 4 to 11 As shown, the production system 30 includes a support component 31, a flipping component 32, a bending component 33, an indentation component 34, and a hot pressing component 35.

[0048] The supporting component 31 includes a base frame 311, with several casters 312 mounted on its bottom. Grilles 313 are also provided on both sides of the base frame 311. A calibrator 314, which is a laser measuring instrument, is also provided at one end of each grille 313. The flipping component 32 includes a slide rail 321, which is mounted above the base frame 311. When installing the slide rail 321, the laser measuring instrument is turned on to ensure that the slide rail 321 can be horizontally mounted above the base frame 311. Two sliders 322 are provided on the slide rail 321, and a first hinge plate 323 is mounted on each slider 322. A bearing plate 324 is mounted on the first hinge plate 323, which is used to clamp the first covering component 21. A top plate 325 is located below the bearing plate 324. The two first hinge plates 323 are adjusted to move closer or further apart using the sliders 322. The first hinge plate 323 and the second hinge plate 326 are connected by a hinge point 327. The hinge point 327 may also be provided with a spiral spring for resetting the second hinge plate 326 and an angle sensor (not shown in the figure) for detecting the deflection angle of the second hinge plate 326.

[0049] like Figures 5 to 7 As shown, the bending component 33 includes a first moving part 331, a first cylinder 332, a connecting shaft 333, a hinge block 334, and a pressure roller plate 335. The first moving part 331 is detachably connected to the bottom of the base frame 311 and its position can be adjusted horizontally below the base frame 311. The tail end of the first cylinder 332 is hinged to the first moving part 331. The output shaft of the first cylinder 332 is fixedly installed to the connecting shaft 333. The connecting shaft 333 is hinged to the hinge block 334, which is fixedly installed below the pressure roller plate 335. The pressure roller plate 335 is located below the second hinge plate 326.

[0050] In this embodiment, the first hinge plate 323 and the second hinge plate 326 are first horizontally unfolded, and then the first covering 21 is clamped onto the support plate 324. The arc-shaped portions D4 at both ends of the heat insulation material layer 23 also need to be machined, and the machined heat insulation material layer 23 is placed on the upper surface of the first covering 21. At this time, the output shaft of the first cylinder 332 located below the first hinge plate 323 is extended. The output shaft of the first cylinder 332 drives the connecting shaft 333, the hinge block 334, and the pressure roller plate 335 to extend. The pressure roller plate 335 is located at the bottom of the second hinge plate 326. During the extension of the first cylinder 332, the pressure roller plate 335 pushes the second hinge plate 326 to rotate along the hinge point 327 towards the first hinge plate 323, and bends the first covering 21 so that the top bearing area B2 of the first covering 21 is above the heat insulation material layer 23.

[0051] Furthermore, during the bending process of the first covering component, it is also necessary to limit the position of the heat insulation layer 23 to prevent it from shifting. Therefore, as Figure 8As shown, the bending component 33 also includes an adjuster 328, which is installed at one end of the top plate 325. The adjuster 328 mainly consists of a mounting frame 328'1, a fixing member 328'2, a connecting frame 328'3, an adjusting member 328'4, a moving rod 328'5, a moving plate 328'6, and a limiting plate 328'8. The mounting frame 328'1 is connected to the base frame 311 via the fixing member 328'2, and the connecting frame 328'3 is fixed above the mounting frame 328'1. The connecting frame 328'3 is slidably connected to the moving rod 328'5, and the moving plate 328'6 is fixed on the moving rod 328'5. The limiting plate 328'8 is connected to one end of the moving plate 328'6. The adjusting member 328'4 is installed on one side of the connecting frame 328'3, and the adjusting member 328'4 is used to control the sliding of the moving rod 328'5. The movable plate 328'6 is also provided with a scale plate 328'7 for observing the movement stroke of the movable plate 328'6. In this embodiment, during the bending process of the first covering 21, the heat insulation material layer 23 is restricted by the adjuster 328 to prevent the heat insulation material layer 23 from shifting during the bending of the first covering 21.

[0052] like Figure 4 , Figure 5 and Figure 9 As shown, the arc-shaped portions D4 at both ends of the heat insulation material layer 23 are processed by the indentation component 34. The indentation component 34 includes a support rod 341, a support member 342, a rotating wheel 343, an extension block 344, a second cylinder 345, an extension plate 346, and an indentation structure 347. The support rod 341 is fixedly connected to the base frame 311, and a support member 342 is slidably connected to the support rod 341. The support member 342 is provided with a rotating wheel 343, which is used to adjust the position of the support member 342 on the support rod 341. An extension block 344 is also connected to one end of the support member 342. The extension block 344 is connected to the side of the second cylinder 345, and the output shaft of the second cylinder 345 is connected to the indentation structure 347 via an extension plate 346. Figure 9 As shown, the indentation structure 347 consists of a fastener 347'1 and an indenter 347'2. The indenter 347'2 can be removed and replaced through the fastener 347'1. The indenter 347'2 is used to process the arc-shaped portion D4 on the heat insulation material layer 23, so that the heat insulation material layer 23 has arc-shaped portions D4 of different sizes. The indenter 347'2 has an arc-shaped groove 347'3 in the middle, and an arc-shaped pressure head 347'4 at the end of the indenter 347'2 away from the fastener 347'1. In one state, the arc-shaped pressure head 347'4 is in contact with the arc-shaped portion D4 on the heat insulation material layer 23.

[0053] In this embodiment, when the first hinge plate 323 and the second hinge plate 326 are horizontally unfolded, and the first covering 21 is clamped onto the support plate 324, the second cylinder 345 is activated to extend. The output shaft of the second cylinder 345 drives the extension plate 346 and its indentation structure 347 to move downward, so that the indentation structure 347 fits against the upper surface of the first covering 21, pressing an arc-shaped groove at the connection between the bending bearing area C3 and the bottom bearing area A1. Then, the heat insulation material layer 23 is placed above the first covering 21, and the first cylinder 332 is activated to extend in the same manner, so that the pressure roller plate 335 pushes the second hinge plate 326 to rotate along the hinge point 327 toward the direction closer to the first hinge plate 323, and bends the first covering 21. Since the first covering 21 has been pressed into an arc-shaped groove by the indentation structure 347, when the first covering 21 is bent, the arc-shaped groove on the first covering 21 fits into the heat insulation material layer 23. Furthermore, since the heat insulation material layer 23 is made of polymer resin and inorganic fibrous material, it possesses strong thermoplasticity and heat insulation properties. When the first covering 21 and the heat insulation material layer 23 are bonded together, the arc-shaped groove on it extrudes the arc-shaped portion D4 beneath the heat insulation material layer 23.

[0054] An angle sensor is provided at hinge point 327 to detect the deflection angle of the second hinge plate 326. When the pressure roller plate 335 drives the second hinge plate 326 to deflect to 90°, the first cylinder 332 stops extending. Figure 10 As shown, at this time, the output shaft of the second cylinder 345 extends again, and the indentation structure 347 extrudes an arc-shaped part D4 on the upper surface of the heat insulation material layer 23, which is the same as the lower surface. Finally, the pressure roller plate 335 drives the second hinge plate 326 to continue bending.

[0055] Due to the stroke limitation of the first cylinder 332, the pressure roller 335 cannot ensure that the top bearing area B2 of the first covering 21 is completely in contact with the upper surface of the heat insulation layer 23. Therefore, a hot pressing component 35 is required for further hot pressing. Figures 4 to 5 As shown, the hot pressing component 35 includes a limiting frame 351, a third cylinder 352, and a hot pressing plate 353. The limiting frame 351 is fixedly mounted above the base frame 311, and the third cylinder 352 is mounted on top of the limiting frame 351. The output shaft of the third cylinder 352 is connected to the hot pressing plate 353. The limiting frame 351 is used to limit the offset of the hot pressing plate 353. In one state, the hot pressing plate 353 is in contact with the upper surface of the top bearing area of ​​the first covering component 21.

[0056] In this embodiment, as Figure 11As shown, after the first covering part 21 is bent, the third cylinder 352 is activated. The third cylinder 352 and its upper hot pressure plate 353 hot-press the top bearing area B2 of the first covering part 21, making the first covering part 21 fit more tightly with the heat insulation material layer 23 and reducing the gap between the first covering part 21 and the heat insulation material layer 23. After the hot pressing is completed, the second covering part 22 is installed with the first covering part 21, and the connection is welded, thus completing the processing of the heat insulation part.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat insulation component for an aircraft engine exhaust nozzle, comprising a first covering, a second covering, and a heat insulation material layer, wherein the heat insulation material layer is located between the first covering and the second covering, characterized in that, The first covering includes a bottom bearing area, a top bearing area, and a bending bearing area. The thermal insulation material layer has two ends, the thickness of which is greater than the thickness of the middle part of the thermal insulation material layer. The connection between the end and the middle part of the thermal insulation material layer has an arc-shaped portion. The inner wall of the bending bearing area is fitted with the arc-shaped portion. The thermal insulation material layer is composed of polymer resin and inorganic fiber body. The first covering has a groove, and the second covering has a protrusion, or the first covering has a protrusion and the second covering has a groove, wherein the groove and the protrusion cooperate.

2. A production system for the thermal insulation component of claim 1, characterized in that, include: The support component includes a base frame on which a pair of correctors are mounted; The flipping component includes a first hinge plate and a second hinge plate. The first hinge plate is provided with a support plate, which is used to clamp the first covering component. The bending component includes a first cylinder and a pressure roller plate. The output shaft of the first cylinder is connected to the pressure roller plate, which contacts one side of the second hinge plate and is used to drive the second hinge plate to rotate toward the first hinge plate. The indentation component includes a second cylinder and an indentation structure, wherein the indentation structure is connected to the output shaft of the second cylinder, and in one state, the indentation structure is in contact with the arc-shaped portion; The hot pressing component includes a limiting frame, a third cylinder, and a hot pressing plate. The output shaft of the third cylinder is connected to the hot pressing plate. The limiting frame is used to limit the offset of the hot pressing plate. In one state, the hot pressing plate is in contact with the upper surface of the top bearing area of ​​the first covering component.

3. The production system as described in claim 2, characterized in that, The flipping component also includes a slide rail, which is mounted above the base frame. When installing the slide rail, the corrector makes the slide rail horizontally mounted on the base frame. The slide rail is provided with a slider, and the first hinge plate is mounted on the slider. The slide rail is provided with two sliders, and the first hinge plate is mounted on the slider. The slider is used to adjust the two first hinge plates to move closer to each other or further apart.

4. The production system as described in claim 3, characterized in that, The first hinge plate and the second hinge plate are connected by a hinge point, at which a spiral spring for resetting the second hinge plate and an angle sensor for detecting the deflection angle of the second hinge plate are provided.

5. The production system as described in claim 4, characterized in that, The flipping component also includes an adjuster. A top plate is located below the support plate, and the adjuster is mounted on one end of the top plate. The adjuster mainly consists of a mounting bracket, a fixing component, a connecting bracket, an adjusting component, a moving rod, a moving plate, and a limiting plate. The mounting bracket is connected to the base frame via a fastener. A connecting bracket is fixed above the mounting bracket. A movable rod is slidably connected to the connecting bracket, and a movable plate is fixed to this movable rod. A limiting plate is connected to one end of the movable plate. The adjusting component is installed on one side of the connecting frame. The adjusting component is used to control the sliding of the moving rod. The moving plate is also provided with a scale plate for observing the moving stroke of the moving plate.

6. The production system as described in claim 2, characterized in that, The bending component also includes a first movable component, which is detachably connected to the bottom of the base frame. The tail end of the first cylinder is hinged to the first movable component. The output shaft of the first cylinder is fixedly mounted with a connecting shaft. The connecting shaft is hinged to a hinge block, which is fixedly mounted below the pressure roller plate.

7. The production system as described in claim 2, 5, or 6, characterized in that, The indentation component also includes a support rod, which is fixedly connected to the base frame. A support member is slidably connected to the support rod, and a rotating wheel is provided on the support member. The rotating wheel is used to adjust the position of the support member on the support rod. An extension block is also connected to one end of the support member. The extension block is connected to the side of the second cylinder, and the output shaft of the second cylinder is connected to the indentation structure via an extension plate.

8. The production system as described in claim 7, characterized in that, The indentation structure consists of a fastener and an indentation component. The indentation component is detachable and replaceable. The indentation component is used to process the arc-shaped portion on the heat insulation material layer.

9. The production system as described in claim 8, characterized in that, The indentation part has an arc-shaped groove in the middle, and the end of the indentation part away from the fastener has an arc-shaped pressure head. In one state, the arc-shaped pressure head is in contact with the arc-shaped part on the heat insulation material layer.

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