Overall demolding device and method for cylinder section workpiece

Abstract

The invention belongs to the technical field of composite material component manufacturing in the technical field of aerospace, and discloses an integral demolding device and method for a cylinder section workpiece. The device comprises a barrel-shaped mold and a demolding ring, the barrel-shaped mold is of a conical integrated structure, a large end face and a small end face are formed at the two ends of the barrel-shaped mold respectively, the outer side wall face of the barrel-shaped mold forms a working face, and the working face sequentially comprises a barrel section workpiece size forming face and a barrel section workpiece demolding auxiliary allowance forming face in the direction from the small end face to the large end face; the demolding ring belt comprises a demolding ring and a push-out assembly, the demolding ring is clamped between the barrel section workpiece demolding auxiliary allowance part and the barrel section workpiece demolding auxiliary allowance forming face, and the push-out assembly is arranged on the barrel-shaped mold and is in transmission connection with the demolding ring so that the demolding ring can move in the direction towards the small end face. And the demolding action force is transmitted to the cylinder section workpiece size forming part through the cylinder section workpiece demolding auxiliary allowance part. In this way, nondestructive demolding can be conducted on the cylinder section workpiece, and the demolding ring is simple in structure, convenient to use and high in efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite material manufacturing technology in the field of aerospace technology, and particularly relates to a whole demolding device and method for a barrel segment workpiece. BACKGROUND

[0002] The barrel segment workpiece (especially a composite material barrel segment for an airplane) is composed of hat-shaped ribs and a skin and has high torsional stability and buckling strength.

[0003] There are two forming methods for a composite material barrel segment, i.e., block forming and whole forming. In order to realize the demolding of a whole barrel segment of a composite material, a combined mold is generally used for curing forming and demolding. An existing related patent introduces a combined mold for manufacturing a whole barrel segment, which includes a mold barrel body with at least two pairs of block molds. When demolding, the block molds are inwardly retracted, so that the workpiece is separated from the mold.

[0004] However, the above combined mold at least has the following problems:

[0005] 1) The combined mold has a complex structure, and the block molds need to be accurately matched to ensure that the surface of the workpiece is flat and defect-free. In addition, a complex movement mechanism needs to be provided to realize the smooth separation of the block molds.

[0006] 2) Sealing is difficult, and there are multiple combined interfaces between the block molds, which makes sealing complex and difficult to ensure high-temperature airtightness.

[0007] Based on the above, there is an urgent need for a whole demolding device and method for a barrel segment workpiece to solve the problems in the prior art. SUMMARY

[0008] The present application provides a whole demolding device and method for a barrel segment workpiece, which is simple, easy to operate and efficient in the workpiece demolding process, and can ensure the production quality of the barrel segment workpiece and reduce the generation of defects.

[0009] To achieve this purpose, the present application adopts the following technical solutions:

[0010] The whole demolding device for a barrel segment workpiece comprises:

[0011] A cylindrical mold for forming a barrel segment workpiece, the cylindrical mold is in a conical one-piece structure and forms a large end face and a small end face at two ends, respectively. The outer lateral wall surface of the cylindrical mold forms a working surface. From the small end face to the large end face, the working surface successively comprises a barrel segment workpiece size forming surface and a barrel segment workpiece demolding auxiliary excess amount forming surface. The barrel segment workpiece size forming surface is used for forming a barrel segment workpiece size forming portion of the barrel segment workpiece. The barrel segment workpiece demolding auxiliary excess amount forming surface is used for forming a barrel segment workpiece demolding auxiliary excess amount portion of the barrel segment workpiece.

[0012] The demolding ring belt comprises a demolding ring and a push-out assembly, the demolding ring is clamped between the cylinder segment product demolding auxiliary excess portion and the cylinder segment product demolding auxiliary excess forming surface of the cylinder segment product, the push-out assembly is arranged on the cylindrical mold and is in transmission connection with the demolding ring, so that the demolding ring can move linearly in the direction towards the small end surface, and the demolding effect force is transmitted to the cylinder segment product size forming portion through the cylinder segment product demolding auxiliary excess portion.

[0013] Preferably, a wedge-shaped structure is arranged on the demolding ring and is located at the junction of the cylinder segment product demolding auxiliary excess portion and the cylinder segment product size forming portion, and the inclined surface of the wedge-shaped structure is arranged in abutment with the cylinder segment product demolding auxiliary excess portion.

[0014] Preferably, at least two push-out assemblies are arranged on the demolding ring in a spaced manner.

[0015] The push-out assembly comprises a fixed block and a push-out piece, the fixed block is connected to the cylindrical mold, the push-out piece is slidably arranged on the fixed block, and one end of the push-out piece can abut against the demolding ring.

[0016] Preferably, a threaded inner hole is arranged through the fixed block, and an outer threaded section is arranged on the push-out piece, the outer threaded section is in threaded connection and can be arranged through the threaded inner hole.

[0017] Preferably, the demolding ring comprises at least two annular bodies which are connected in a surrounding manner, adjacent annular bodies are arranged in a spaced manner at the junction, and a clearance gap is formed for the annular bodies to deform in a ring direction due to thermal expansion.

[0018] Preferably, the demolding ring belt further comprises at least two connecting blocks, the connecting blocks are connected in a limiting manner in a radial direction to adjacent two annular bodies, and there is a space between the connecting blocks and the annular bodies in a ring direction.

[0019] Preferably, the annular body is arranged with an abutment portion, and the annular body is arranged in abutment with the cylindrical mold through the abutment portion.

[0020] The application further provides a cylinder segment product overall demolding method, which utilizes the cylinder segment product overall demolding device, and comprises the following steps:

[0021] S1, the demolding ring is sleeved on the cylinder segment product demolding auxiliary excess forming surface of the cylindrical mold;

[0022] S2, the blank for forming the cylinder segment product is laid on the outer side wall surface of the cylindrical mold, and part of the blank is covered on the demolding ring;

[0023] S3, the tubular mold with the blank laid on the surface is sent into a hot press tank for curing;

[0024] S4, the cured tubular mold is taken out, the demolding ring is driven by the pushing assembly to move linearly towards the small end surface of the tubular mold, an action pressure is applied to the demolding auxiliary excess part of the tubular segment product, the demolding action force is transmitted to the size forming part of the tubular segment product through the demolding auxiliary excess part, and the demolded tubular segment product is obtained.

[0025] Preferably, in the step S4, after the tubular mold is taken out from the hot press tank, the demolding ring is removed, part of the tubular segment product is separated from the tubular mold by using a demolding tool, and then the demolding ring and the pushing assembly are installed to completely separate the tubular segment product from the tubular mold.

[0026] Preferably, in the step S4, after the tubular segment product is completely separated from the tubular mold, the tubular segment product is taken off from the tubular mold by using a dismounting tool to obtain the demolded tubular segment product.

[0027] The beneficial effects of the present application are as follows:

[0028] The present application provides a tubular segment product whole demolding device. Since the tubular mold is of an integrated structure, the working surface of the tubular mold is continuous and smooth, and the mold does not need to be divided into blocks, thereby simplifying the structure of the tubular mold and ensuring the high-temperature airtightness and use reliability of the tubular mold. In addition, an annular area of a tubular segment product demolding auxiliary excess forming surface is additionally arranged on the working surface of the tubular mold, and a demolding ring is clamped between the tubular segment product demolding auxiliary excess forming surface and the tubular segment product demolding auxiliary excess part, so that the demolding ring can exert a certain force on the size forming part of the tubular segment product through the tubular segment product demolding auxiliary excess part under the driving action of the pushing assembly, and the point-like distributed force is converted into a linearly distributed force in the annular direction. The linearly distributed force can be decomposed into a linearly distributed force in the radial direction of the tubular mold and a linearly distributed force in the direction of the small end surface along the axis of the tubular mold. The linearly distributed force in the radial direction of the tubular mold can maintain the shape of the tubular segment product, and the linearly distributed force in the direction of the small end surface along the axis of the tubular mold can realize the movement of the tubular segment product in the direction of the small end surface. Under the uniform distribution of the annular action force, the gap between the tubular segment product and the tubular mold gradually increases, thereby realizing the non-damage demolding of the tubular segment product, and the demolding ring has the advantages of simple structure, convenient use, and higher efficiency.

[0029] The application further provides a whole demolding method of the barrel segment product, which utilizes the whole demolding device of the barrel segment product, is simple in operation process, convenient to use, can guarantee the quality of the barrel segment product in the forming process and the demolding process and causes no damage. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a forming schematic view of the barrel segment product on the whole demolding device of the barrel segment product provided by the embodiment of the application;

[0031] Figure 2 is a top view of the demolding ring provided by the embodiment of the application;

[0032] Figure 3 is a structural schematic view of the demolding ring provided by the embodiment of the application;

[0033] Figure 4 is a sectional view along A-A of the demolding ring; Figure 2

[0034] Figure 5 is a flow schematic view of the whole demolding method of the barrel segment product provided by the embodiment of the application;

[0035] Figure 6 is a structural schematic view of the annular body installed on the barrel-shaped mold provided by the embodiment of the application;

[0036] Figure 7 is a structural schematic view of the blank of the barrel segment product for forming laid on the outer side wall surface of the barrel-shaped mold provided by the embodiment of the application;

[0037] Figure 8 is a structural schematic view of the barrel-shaped mold sent into the heat pressing tank for bagging and curing provided by the embodiment of the application;

[0038] Figure 9 is a structural schematic view of the annular body again installed on the barrel-shaped mold provided by the embodiment of the application;

[0039] Figure 10 is a structural schematic view of the pushing-out assembly installed on the barrel-shaped mold provided by the embodiment of the application;

[0040] Figure 11 is a structural schematic view of the pushing-out piece pushed out by a specified distance d along the axial direction of the barrel-shaped mold provided by the embodiment of the application.

[0041] In the drawings:

[0042] ​100, cylinder segment product; 101, cylinder segment product size forming part; 102, cylinder segment product demolding auxiliary excess part; 103, cylinder segment product size excess part; 200, blank; 300, vacuum bag;

[0043] 1, cylindrical mold; 11, working surface; 111, cylinder segment product size forming surface; 112, cylinder segment product demolding auxiliary excess forming surface; 113, cylinder segment product size excess surface; 12, end face baffle;

[0044] 2, demolding ring belt; 21, demolding ring; 211, ring body; 2111, wedge structure; 2112, fitting part; 212, excess gap; 22, ejecting assembly; 221, fixed block; 222, ejecting piece; 23, connecting block. DETAILED DESCRIPTION

[0045] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended for explaining the application, but not limiting the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for the convenience of description, but not all the structures.

[0046] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0047] In the application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of the present embodiment, the terms "upper", "lower", "right", "left" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0049] The present embodiment provides a whole demolding device for a barrel segment product, which is mainly applied to the forming preparation of a composite material fuselage barrel segment of an airplane. Figure 1 As shown in the figure, the whole demolding device for the barrel segment product comprises a barrel-shaped mold 1 and a demolding ring belt 2.

[0050] The barrel-shaped mold 1 is in a conical integrated structure, and a large end face and a small end face with gradually decreasing cross-sectional areas are respectively formed at both ends of the barrel-shaped mold 1. The outer side wall surface of the barrel-shaped mold 1 forms a working surface 11 connected with the barrel segment product 100, and from the direction of the small end face to the large end face, the working surface 11 successively comprises a barrel segment product size forming surface 111 and a barrel segment product demolding auxiliary excess amount forming surface 112, so as to respectively form a barrel segment product size forming part 101 and a barrel segment product demolding auxiliary excess amount part 102 in the barrel segment product 100.

[0051] The demolding ring belt 2 comprises a demolding ring 21 and a pushing-out assembly 22, wherein the demolding ring 21 is clamped between the barrel segment product demolding auxiliary excess amount part 102 and the barrel segment product demolding auxiliary excess amount forming surface 112, and the pushing-out assembly 22 is arranged on the barrel-shaped mold 1 and is drivingly connected with the demolding ring 21, so that the demolding ring 21 can move linearly in the direction towards the small end face, so as to transmit a demolding force to the barrel segment product size forming part 101 through the barrel segment product demolding auxiliary excess amount part 102.

[0052] Through the above setting, on the one hand, since the cylindrical mold 1 is of an integral structure, the working surface 11 of the cylindrical mold 1 is continuous and smooth, and there is no need to set the mold in blocks, thereby simplifying the structure of the cylindrical mold 1, eliminating the need to ensure accurate cooperation between the blocks in the prior art to ensure that the surface of the workpiece is smooth and defect-free, and ensuring the high-temperature airtightness and use reliability of the cylindrical mold 1. On the other hand, since a ring-shaped area of a cylindrical part demolding auxiliary excess amount forming surface 112 is additionally provided on the working surface 11 of the cylindrical mold 1, and the demolding ring 21 is installed on the cylindrical part demolding auxiliary excess amount forming surface 112, when the cylindrical part demolding auxiliary excess amount part 102 and the cylindrical part size forming part 101 are formed, the demolding ring 21 is clamped between the cylindrical part demolding auxiliary excess amount forming surface 112 and the cylindrical part demolding auxiliary excess amount part 102, and under the driving action of the push-out assembly 22, the demolding ring 21 can exert a certain force on the cylindrical part size forming part 101 through the cylindrical part demolding auxiliary excess amount part 102, converting the point-like distributed force into a linearly distributed force in the circumferential direction. The linearly distributed force can be decomposed into a linearly distributed force in the radial direction of the cylindrical mold 1 and a linearly distributed force in the direction of the small end surface along the axis of the cylindrical mold 1. The linearly distributed force in the radial direction of the cylindrical mold 1 can maintain the shape of the cylindrical part 100 stably, and the linearly distributed force in the direction of the small end surface along the axis of the cylindrical mold 1 can realize the movement of the cylindrical part 100 in the direction of the small end surface. Under the action of the uniformly distributed circumferential force, the gap between the cylindrical part 100 and the cylindrical mold 1 gradually increases, realizing the demolding of the cylindrical part 100. After demolding, the cylindrical part demolding auxiliary excess amount part 102 is cut off, which does not affect the use of the cylindrical part size forming part 101, thereby realizing the non-destructive demolding of the cylindrical part 100, and the demolding ring 21 is simple in structure, convenient to use, and more efficient.

[0053] Reference Figure 3 As shown in the figure, the demolding ring 21 is of a split combined structure, including at least two arc-shaped ring bodies 211 arranged in the circumferential direction, and in the embodiment, four ring bodies 211 arranged in the circumferential direction, which form a ring belt structure of the demolding ring 21 after combination. In addition, adjacent ring bodies 211 are spaced apart at the junction to form excess gaps 212 for the circumferential deformation of the ring bodies 211 due to thermal expansion, so as to match the thermal expansion of the ring bodies 211 and the cylindrical mold 1 when the cylindrical part 100 is solidified, prevent extrusion deformation between the ring bodies 211, avoid the existence of buckling or protrusion on the outer circumferential surface of the ring bodies 211, affect the formation of the cylindrical part demolding auxiliary excess amount part 102, and further affect the risk of non-destructive demolding of the cylindrical part 100.

[0054] Further, reference Figure 4As shown, the wedge structure 2111 is arranged on the annular body 211 at the joint of the demolding auxiliary excess portion 102 and the size forming portion 101 of the barrel segment, and the inclined surface of the wedge structure 2111 is arranged in abutment with the demolding auxiliary excess portion 102 of the barrel segment. The inclined surface of the wedge structure 2111 can effectively reduce the resistance of the barrel segment 100 during demolding, so that the barrel segment 100 is more easily demolded from the cylindrical mold 1, the friction and jamming phenomenon during demolding is reduced, and the stress concentration at the joint of the demolding auxiliary excess portion 102 and the size forming portion 101 of the barrel segment during demolding is also reduced, thereby further reducing the possibility of damage to the barrel segment 100.

[0055] It can be understood that the angle of the tip of the wedge structure 2111 can be selectively set according to the configuration of the barrel segment 100, and the present application is not limited thereto.

[0056] The demolding ring belt 2 further comprises a plurality of connecting blocks 23, which will be described below with reference to Figure 2 As shown, four connecting blocks 23 are arranged on the demolding ring 21, and the four connecting blocks 23 are arranged in correspondence with the four excess gaps 212. In addition, in the radial direction, the connecting block 23 is limitedly connected to the adjacent two annular bodies 211, and in the circumferential direction, the connecting block 23 has a displacement space with the annular body 211, so as to limit the radial displacement of the annular body 211 through the connecting block 23, so as to ensure that the end of the annular body 211 will not be deformed in the radial direction, and at the same time, it is ensured that the connecting block 23 will not interfere with the circumferential deformation process of the annular body 211.

[0057] In one embodiment of the present embodiment, the connecting block 23 is an L-shaped connecting block 23 with an arc-shaped cross section, which matches the shape of the annular body 211 and is installed on the part of the annular body 211 where the wedge structure 2111 is not arranged. The connecting block 23 comprises two intersecting parts, and two threaded fasteners are arranged on each of the two parts. One of the parts is arranged in abutment with the side surface of the annular body 211, and the circular hole on one of the parts is arranged in abutment with the internally threaded circular hole on the side surface of the annular body 211. The two threaded fasteners on one of the parts are threadedly connected through the circular hole and the internally threaded circular hole, thereby achieving the limiting and fixing of the connecting block 23 in the radial direction with the annular body 211. The other part is arranged in abutment with the end surface of the annular body 211, and the waist-shaped hole on the other part is arranged in abutment with the internally threaded circular hole on the end surface of the annular body 211. The cross-sectional shape of the waist-shaped hole is also arc-shaped. The two threaded fasteners on the other part are threadedly connected through the waist-shaped hole and the internally threaded circular hole, so that the threaded fasteners can move in the circumferential direction in the waist-shaped hole, thereby forming the above-mentioned displacement space in the waist-shaped hole.

[0058] Further, the annular body 211 is provided with an abutment portion 2112 Figure 3Only one of the abutments 2112) is shown, and the annular body 211 is abutted to the cylindrical mold 1 through the abutment 2112) to enable the annular body 211 to maintain the arc-shaped appearance matching the cylindrical mold 1, thereby avoiding deformation of the annular body 211 to affect the demolding efficiency of the cylindrical segment product 100.

[0059] The demolding ring 21 is provided with at least two push-out assemblies 22 at intervals, and in the embodiment shown in the figure, the push-out assembly 22 is provided with four, and each annular body 211 is provided with one push-out assembly 22 at the middle position. The push-out assembly 22 includes a fixed block 221 and a push-out piece 222, the fixed block 221 is connected to the cylindrical mold 1, and the push-out piece 222 is slidably arranged on the fixed block 221, and one end of the push-out piece 222 can slide to abut against the corresponding annular body 211. Through the above arrangement, the four fixed blocks 221 can take the cylindrical mold 1 as a support fixed point, and by simultaneously moving the four push-out pieces 222 relative to the fixed block 221 in the demolding direction, when the four push-out pieces 222 abut against the four annular bodies 211, the four annular bodies 211 can apply uniform acting pressure to the demolding auxiliary excess portion 102 of the cylindrical segment product, thereby ensuring that the cylindrical segment product 100 is uniformly stressed during demolding, and effectively improving the quality of the cylindrical segment product 100 after demolding.

[0060] It should be noted that the number of annular bodies 211 and push-out assemblies can be determined according to the size and configuration of the cylindrical segment product 100, and the present application does not limit this.

[0061] One of the embodiments of the present embodiment is that the fixed block 221 is provided with a threaded inner hole in the vertical direction, and the push-out piece 222 can be a screw rod or a bolt with an external threaded segment, and the external threaded segment is threadedly connected and can be arranged in the threaded inner hole. In this way, by screwing the push-out piece 222, the push-out piece 222 can be extended and retracted on the fixed block 221.

[0062] In addition, as shown in Figure 1 The cylindrical mold 1 is provided with an end face baffle 12 at the large end face, the fixed block 221 is an L-shaped structure, the fixed block 221 includes two intersecting parts, one part can be fixed on the end face baffle 12 through threaded connection, buckle connection or the like, and the other part is arranged relative to the annular body 211, and an opening is provided in the other part to pass through the threaded inner hole opposite to the annular body 211, thereby completing the installation of the push-out assembly 22 and ensuring the function realization of the push-out assembly 22.

[0063] Of course, in other parallel embodiments, the push-out assembly 22 can also be directly fixed and installed on the outer side wall surface of the cylindrical mold 1, as long as the structure of the fixed block 221 is improved to enable the push-out piece 222 to be opposite to the end face of the annular body 211.

[0064] The embodiment also provides a demolding method based on the overall demolding device for the barrel segment product. Figure 5 As shown in the figure, the overall demolding method for the barrel segment product is executed as follows:

[0065] S1, the demolding ring 21 is sleeved on the demolding auxiliary excess forming surface 112 of the barrel segment product of the cylindrical mold 1.

[0066] In specific operation, referring to Figure 6 As shown in the figure, four annular bodies 211 are installed on the demolding auxiliary excess forming surface 112 of the barrel segment product of the cylindrical mold 1 in blocks, and are fixed to the cylindrical mold 1 through the fitting part 2112. One of the embodiments of the present embodiment is that the fitting part 2112 includes a first locking hole, a second locking hole and a locking bolt. The first locking hole is arranged at the middle position of the side surface of the annular body 211, the second locking hole is arranged at the position higher than the demolding auxiliary excess forming surface 112 of the outer side wall surface of the cylindrical mold 1, and the locking bolt is threadedly connected to the second locking hole through the first locking hole, so that the annular body 211 can be fitted to the outer side wall surface of the cylindrical mold 1.

[0067] In addition, a gap 212 is reserved between the annular bodies 211, and a connecting block 23 is installed between the adjacent annular bodies 211 to form a ring belt structure.

[0068] S2, the blank 200 for forming the barrel segment product 100 is laid on the outer side wall surface of the cylindrical mold 1, and part of the blank 200 is covered on the demolding ring 21.

[0069] In specific operation, the blank 200 for forming the barrel segment product 100 is laid on the cylindrical mold 1 for male mold laying forming. The laying area of the blank 200 is arranged as follows: referring to Figure 7 As shown in the figure, the barrel segment product size excess surface 113 is arranged on the working surface 11 outside the net size line (NOP), and is used for forming the barrel segment product size excess part 103 to solve the edge effect of the barrel segment product size forming part 101. The laying continues to the demolding auxiliary excess forming surface 112 outside the excess line (EOP), so that a certain amount of blank 200 is laid on the wedge structure 2111 of the annular body 211.

[0070] S3, the cylindrical mold 1 laid with the blank 200 is sent into the hot press tank for curing after bagging.

[0071] In specific operation, referring to Figure 8 As shown in the figure, after the laying is completed, the vacuum bag 300 is used to cover the entire working surface 11 and the area of the demolding ring 21 on the cylindrical mold 1. After the vacuum bag 300 passes the leak detection, the cylindrical mold 1 is sent into the hot press tank for curing.

[0072] S4, the cured cylindrical mold 1 is taken out, the demolding ring 21 is driven to move linearly in the direction of the small end face of the cylindrical mold 1 by the push-out assembly 22, an action pressure is applied to the demolding auxiliary excess portion 102 of the cylindrical segment product, and the demolding action force is transmitted to the cylindrical segment product size forming portion 101 through the demolding auxiliary excess portion 102 of the cylindrical segment product, so that the demolded cylindrical segment product 100 is obtained.

[0073] In the specific operation, after the cylindrical mold 1 is taken out from the autoclave, the demolding ring 21 is first removed, and the demolding tool (such as a demolding wedge) is inserted into the junction between the cylindrical segment product 100 and the cylindrical mold 1 at both ends, respectively, so that the demolding tool is used to first eliminate the fitting mechanical force between the portions at both ends of the cylindrical segment product 100 and the cylindrical mold 1, specifically the fitting adsorption force, so that the cylindrical segment product 100 and the cylindrical mold 1 are preliminarily separated, thereby facilitating the subsequent complete separation of the cylindrical segment product 100 from the cylindrical mold 1 by using the push-out assembly 22.

[0074] Next, as shown in Figure 9 and Figure 10 , the demolding ring 21 is continued to be sleeved on the cylindrical segment product demolding auxiliary excess forming surface 112, and the connecting block 23 is used to connect to form an integral ring belt, and then a plurality of push-out assemblies 22 are installed, and the fixing block 221 is installed and fixed on the cylindrical mold 1 or the end face baffle 12.

[0075] Then, as shown in Figure 11 , a plurality of push-out pieces 222 are simultaneously operated to move a specified distance d along the axial direction of the cylindrical mold 1, so that the demolding ring 21 moves uniformly by a certain distance (i.e. the specified distance d). It is worth noting that since the cylindrical segment product size excess portion 103 is simultaneously laid and cured with the cylindrical segment product size forming portion 101 and the cylindrical segment product demolding auxiliary excess portion 102, the structural strength is high, so that the cylindrical segment product 100 can move integrally by d under the action of the linear distribution force of the action pressure F along the axial direction of the cylindrical mold 1 to the small end face, so that the cylindrical segment product 100 and the cylindrical mold 1 are completely separated.

[0076] Finally, after the cylindrical segment product 100 and the cylindrical mold 1 are completely separated, the cylindrical segment product 100 can be taken off from the cylindrical mold 1 by using the removal tool (such as a hook), so that the demolded cylindrical segment product 100 is obtained, thereby ensuring the lossless demolding of the cylindrical segment product 100.

[0077] In the overall demolding method of the above-mentioned cylinder segment product, the demolding ring 21 can uniformly apply downward pressure to the additionally provided cylinder segment product demolding auxiliary excess portion 102, and the pressure is transmitted to the cylinder segment product size forming portion 101, so that the entire cylinder segment product 100 moves along the axis and is separated from the cylindrical mold 1, and the cylinder segment product 100 is uniformly stressed during demolding. At the same time, the structural integration of the cylindrical mold 1 can be realized, and the design and manufacture of the cylindrical mold 1 in blocks are eliminated, so that the surface of the cylindrical mold 1 is smoother and has no gap, effectively simplifying the tooling design of the cylindrical mold 1, and the operation is more convenient, so that the quality of the cylinder segment product 100 can be guaranteed and there is no loss during the forming process and the demolding process. In addition, by adjusting the radial size of the cylindrical mold 1, the overall demolding method of the cylinder segment product can also be applied to the lossless demolding of cylinder segment products 100 of different sizes, thereby greatly improving the application range of the overall demolding device and method of the cylinder segment product.

[0078] The following is an example of forming a cylinder segment product 100 with a diameter of 3 meters:

[0079] (1) Install 6 ring bodies 211 on the cylinder segment product demolding auxiliary excess forming surface 112 of the cylindrical mold 1 in sections, the wedge structure 2111 of the demolding ring 21 is provided with a sharp angle of 10°, and a gap 212 of about 1mm is reserved between the ring bodies 211, the ring bodies 211 are first fixed with the cylindrical mold 1 through locking bolts, and then 6 connecting blocks 23 are installed to fix the 6 ring bodies 211 into a ring belt structure matching the shape of the cylindrical mold 1;

[0080] (2) The blank 200 for forming the cylinder segment product 100 is laid on the cylindrical mold 1 for male mold laying forming. The laying axial length of the blank 200 on the cylinder segment product demolding auxiliary excess forming surface 112 and the cylinder segment product size excess surface 113 is 50mm and 25mm respectively, so as to ensure that the blank 200 with an axial length of 50mm is laid on the wedge structure 2111 of the ring body 211;

[0081] (3) After laying, curing is carried out on the cylindrical mold 1, and a vacuum bag 300 covers the entire working surface 11 and the demolding ring 21. After the vacuum bag 300 passes the leak detection, it is put into a hot press tank for curing;

[0082] (4) Remove the vacuum bag 300, remove the locking bolts, and remove the connecting blocks 23 and the 6 ring bodies 211;

[0083] (5) Use demolding wedges and other demolding tools to preliminarily separate the cylinder segment product 100 from the cylindrical mold 1, and use the knocking detection method to confirm that the cylinder segment product 100 and the cylindrical mold 1 have been preliminarily separated;

[0084] (6) Reinstall 6 ring bodies 211 and 6 connecting blocks 23, and install the push-out assembly 22, and install the fixing block 221 in the push-out assembly 22 on the end face baffle 12 of the cylindrical mold 1;

[0085] (7) Simultaneously operate the push-out members 222 of the plurality of push-out assemblies 22 to push out the plurality of push-out members 222 along the axis direction of the small end face of the cylindrical mold 1, and the pushing-out speed can be adjusted according to actual conditions, so that the 6 ring bodies 211 are uniformly moved along the axis direction by 4 mm, thereby making the cylindrical segment product 100 move by 4 mm along the axis direction with respect to the cylindrical mold 1, and realizing the complete separation of the cylindrical segment product 100 from the cylindrical mold 1;

[0086] (8) Use a lifting hook or other removal tool to remove the cylindrical segment product 100 from the cylindrical mold 1, and transfer it to a subsequent work station.

[0087] In the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0088] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes here. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The integral demoulding device for the barrel section is characterized by: include: A cylindrical mold (1) is used to form a cylindrical section product (100). The cylindrical mold (1) is a conical integral structure, and has a large end face and a small end face at both ends. The outer wall surface of the cylindrical mold (1) forms a working surface (11), which points from the small end face to the large end face. The working surface (11) includes a cylindrical section product size forming surface (111) and a cylindrical section product demoulding auxiliary margin forming surface (112) in sequence. The cylindrical section product size forming surface (111) is used to form the cylindrical section product size forming portion (101) of the cylindrical section product (100), and the cylindrical section product demoulding auxiliary margin forming surface (112) is used to form the cylindrical section product demoulding auxiliary margin portion (102) of the cylindrical section product (100). The demoulding ring belt (2) comprises a demoulding ring (21) and an ejection assembly (22), wherein the demoulding ring (21) is sandwiched between the demoulding auxiliary margin portion (102) of the barrel section product and the demoulding auxiliary margin forming surface (112) of the barrel section product, and the ejection assembly (22) is arranged on the cylindrical mold (1) and is transmission-connected to the demoulding ring (21) so that the demoulding ring (21) can move linearly in a direction toward the small end face, so as to transmit a demoulding force to the barrel section product size forming portion (101) through the demoulding auxiliary margin portion (102) of the barrel section product.

2. The barrel section integral demoulding device according to claim 1, characterized in that: A wedge-shaped structure (2111) is provided on the demoulding ring (21) toward the connection between the barrel section product demoulding auxiliary margin portion (102) and the barrel section product size forming portion (101), and the inclined surface of the wedge-shaped structure (2111) is fitted on the barrel section product demoulding auxiliary margin portion (102).

3. The barrel section integral demoulding device according to claim 1, characterized in that: At least two ejection assemblies (22) are spaced apart on the demoulding ring (21); The ejection assembly (22) comprises a fixed block (221) and an ejection member (222), wherein the fixed block (221) is connected to the cylindrical mold (1), and the ejection member (222) is slidably arranged on the fixed block (221), and one end of the ejection member (222) can abut against the demoulding ring (21).

4. The barrel section integral demoulding device according to claim 3, characterized in that: The fixing block (221) is provided with a threaded inner hole, and the ejection member (222) is provided with an external thread segment, which is threadedly connected and can be passed through the threaded inner hole.

5. The barrel section integral demoulding device according to claim 1, characterized in that: The demoulding ring (21) comprises at least two enclosed and connected annular bodies (211), and adjacent annular bodies (211) are spaced apart at the junction to form a residual gap (212) for the annular bodies (211) to deform circumferentially due to thermal expansion.

6. The barrel section integral demoulding device according to claim 5, characterized in that: The demoulding ring belt (2) further comprises at least two connecting blocks (23), wherein the connecting blocks (23) are connected to two adjacent annular bodies (211) in a limited manner along the radial direction, and along the annular direction, there is a clearance space between the connecting blocks (23) and the annular bodies (211).

7. The barrel section integral demoulding device according to claim 6, characterized in that: The annular body (211) is provided with a fitting portion (2112), and the annular body (211) is fitted with the cylindrical mold (1) via the fitting portion (2112).

8. The method for demoulding the barrel section as a whole is characterized by: The method utilizes the barrel section integral demoulding device according to any one of claims 1 to 7, comprising the following steps: S1, sleeve the demoulding ring (21) onto the auxiliary margin molding surface (112) of the cylindrical section workpiece of the cylindrical mold (1); S2, laying a blank (200) for forming a barrel section product (100) on the outer wall of the cylindrical mold (1), and covering a portion of the blank (200) on the demoulding ring (21); S3, making bags from the cylindrical mold (1) on which the blank (200) is laid, and then sending the bags into an autoclave for curing; S4. The solidified cylindrical mold (1) is taken out, and the demoulding ring (21) is driven by the ejection assembly (22) to move linearly in the direction toward the small end face of the cylindrical mold (1), so as to apply pressure to the demoulding auxiliary margin portion (102) of the cylindrical section product, and the demoulding force is transmitted to the size forming portion (101) of the cylindrical section product through the demoulding auxiliary margin portion (102) of the cylindrical section product, thereby obtaining the demoulded cylindrical section product (100).

9. The method for integrally demoulding a barrel section product according to claim 8, characterized in that: In step S4, after the cylindrical mold (1) is taken out of the autoclave, the demoulding ring (21) is removed, and a demoulding tool is inserted to eliminate part of the mechanical force between the cylindrical section product (100) and the cylindrical mold (1), and then the demoulding ring (21) and the ejection assembly (22) are installed to completely separate the cylindrical section product (100) from the cylindrical mold (1).

10. The method for integrally demoulding a barrel section product according to claim 9, characterized in that: In the step S4, after the barrel section component (100) is completely separated from the cylindrical mold (1), a disassembly tool is used to remove the barrel section component (100) from the cylindrical mold (1) to obtain the demoulded barrel section component (100).

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