Metal plate processing system

Abstract

Metal Plate Processing System The invention relates to a metal plate processing system. The processing system comprises three processing devices (100). According to the present invention, the structural shape of the intersection of the transverse and longitudinal corrugations of the profiled corrugated plates is mainly determined by the characteristic patterns processed by the second processing device based on the transverse corrugations of the raw plate; the processing of the structural shape of this intersection is independent of the processing of the transverse corrugations.Compared to the traditional solution of processing the characteristic structure at the center of the transverse undulations while simultaneously processing the transverse undulations, the present invention involves processing the characteristic structure at the center of the already formed transverse undulations, and the shaping of the characteristic structure is independent of the shaping of the transverse undulations. Figure to be published with the abbreviation: Figure 1.

Description

Title of the invention: Metal plate processing system technical field

[0001] The present invention relates to a metal plate processing system. This processing system is applicable to the non-cutting processing of metal plates that can be used in storage containers. Said storage container is specifically the liquefied gas storage unit for marine equipment such as ships or the land-based liquefied gas storage unit in which the liquefied gas is liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen, liquid helium, etc. Technical Context

[0002] The transport of LNG (liquefied natural gas) generally depends on transport equipment, such as ships and other marine equipment. The main processes at an LNG receiving station are unloading at the port, LNG storage, processing, and transport outbound. Within these processes, the LNG storage tank, which involves the longest construction period, utilizes the most advanced technologies, and presents the greatest challenges during project construction, is always managed as a key stage in the overall project. Furthermore, the structural design of LNG storage tanks and scientific and technological innovation are also key issues of concern to both domestic and international professionals in the industry.

[0003] In LNG storage tanks, the corrugated sheets used to form the sealing layer must be able to maintain good sealing and stability under various operating conditions. Therefore, the shaping and quality of the corrugated sheets are particularly important, which increases the process requirements for their production and manufacture. According to the existing process for manufacturing corrugated sheets, the corrugations are formed by simple stamping and bending of the molds. For the corrugated sheet thus produced, the uniformity, fluidity, and strength of the material at the level of the formed corrugations, particularly at the intersection of the transverse and longitudinal corrugations, must be improved.

[0004] Therefore, it is necessary to provide a processing system that at least partially solves the above problems. Contents of the invention

[0005] The present invention relates to providing a processing system comprising three processing devices. According to the present invention, the form The structural integrity of the intersection of the transverse and longitudinal corrugations in profiled corrugated metal plates is primarily determined by the characteristic patterns processed by the second processing device based on the transverse corrugations of the raw plate. By pre-stamping characteristic patterns onto the transverse corrugations of the raw plate, the structural stability and controllability of the intersection area, as shaped in subsequent processing stages, can be improved. Furthermore, the structural shape processing of this intersection area is independent of the processing of the transverse corrugations.Compared to the traditional solution of processing the characteristic structure at the center of the transverse corrugations while simultaneously processing the corrugations themselves, the present invention involves processing the characteristic structure at the center of the already formed transverse corrugations, and the shaping of the characteristic structure is independent of the shaping of the transverse corrugations. Compared to using a flat blank as a processing base, the present invention utilizes the already formed transverse corrugations as a processing base, which can make the shaping of the characteristic structure more precise and is more conducive to shaping the final intersection portion.

[0006] According to one aspect of the present invention, the invention relates to a system for processing metal plates, the processing system comprises the following elements arranged in sequence according to the processing order:

[0007] a first processing device, said first processing device is provided with a first shaping projection extending in the transverse direction, the lower end of the first shaping projection is provided with a predetermined shaping profile having a longitudinal dimension which gradually decreases towards the lower side, the predetermined shaping profile is smooth, the first processing device is configured to shape transverse undulations on the raw plate;

[0008] a second processing device, said second processing device is provided with a second shaping projection extending in the transverse direction, the lower end of the second shaping projection is provided with a second predetermined shaping profile having a longitudinal dimension that gradually decreases towards the lower side, a characteristic pattern structure is disposed at the central transverse position of the second shaping projection, the characteristic pattern structure is configured to shape characteristic patterns on the transverse undulations of the raw plate; and

[0009] a third processing device, said third processing device is provided with a third shaping projection extending in the longitudinal direction, the third shaping projection has a smooth and uniform profile in the direction longitudinal, and is configured to shape longitudinal undulations on the raw plate, so that the intersection part of the transverse and longitudinal undulations is formed at the position of the characteristic patterns;

[0010] said first processing device comprises a first upper pressing plate and a first lower pressing plate which are separable from each other, the first shaping projection projects downwards from the first upper pressing plate, and a first depression portion intended to receive the first shaping projection is formed on the first lower pressing plate, and,

[0011] said second processing device comprises a second upper pressing plate and a second lower pressing plate which are separable from each other, the second shaping projection projects downwards from the second upper pressing plate, a second depression portion is formed on the second lower pressing plate to receive the second shaping projection, features corresponding to the characteristic pattern structure are formed on the second depression portion,

[0012] said characteristic pattern structure comprises:

[0013] a pair of depression parts arranged symmetrically in the transverse direction around the center of the lower surface of the characteristic pattern structure and located on the lateral surface of the second shaping projection;

[0014] a pair of incision parts arranged symmetrically in the longitudinal direction around the center of the lower surface of the characteristic pattern structure and located on the lower surface of the second shaping projection,

[0015] however, the depth of concavity of the pair of incision parts is greater than the depth of concavity of the pair of depression parts,

[0016] characterized in that the third processing device comprises:

[0017] a pair of sliding plates, said sliding plates being able to move away from and towards each other in the transverse direction;

[0018] a pair of third pressing plates, said pair of third pressing plates being located correspondingly on the upper sides of the pair of sliding plates to compact the raw plate between the pair of sliding plates and the pair of pressing plates;

[0019] a third shaping projection, said third shaping projection being positioned between the pair of sliding plates and extending towards the longitudinal direction, the lower end of the third shaping projection being provided with a third predetermined shaping profile having a transverse dimension which gradually decreases towards the lower side, the third predetermined shaping profile being smooth;

[0020] a drive mechanism, said drive mechanism comprising:

[0021] two rows of sliding plate drive parts, the two rows of sliding plate drive parts being respectively positioned on the transverse outer side of the pair of third pressing plates, and there are multiple sliding plate drive parts in each row; and

[0022] a third shaping projection drive part connected to the third shaping projection,

[0023] wherein said third shaping protrusion drive part and sliding plate drive part operate in a coordinated manner, such that when the sliding plate drive part causes the pair of sliding plates to approach each other, the third shaping protrusion drive part causes the third shaping protrusion to move downwards.

[0024] According to one embodiment, said first upper pressing plate is provided with two first shaping projections, the first pressing plate comprises a middle upper pressing plate and end upper pressing plates positioned on both sides of the middle upper pressing plate, the first two shaping projections extend respectively along the junction position between the middle upper pressing plate and the end upper pressing plates, moreover, the first upper pressing plate is configured such that during the shaping process, the middle upper pressing plate is first actuated towards the first lower pressing plate, the end upper pressing plates and the first two shaping projections are then actuated towards the first lower pressing plate.

[0025] According to one embodiment, a bulge is formed at the central position of the lower surface of the characteristic pattern structure, the lower surface of the characteristic pattern structure is provided with four hollows around the bulge, of which two hollows are symmetrical in the longitudinal direction with respect to the bulge, and two other hollows are symmetrical in the transverse direction with respect to the bulge.

[0026] According to one embodiment, said drive mechanism comprises a main horizontal plate and a vertical plate connected together, and the vertical plate extends from the center of said main horizontal plate in the downward transverse direction, wherein:

[0027] The drive portion of the sliding plate is a drive block; the upper part of the drive block is fixed to the main horizontal plate, and a force-receiving portion corresponding to the drive block is disposed on the On the transverse outer side of the sliding plate, the drive block and the force receiving part are in contact with the inclined face;

[0028] the third shaping projection is fixed on the lower end of the vertical plate.

[0029] According to one embodiment, the upper mold of the third processing device is configured to allow the pair of third pressing plates to move vertically with the main horizontal plate; which also allows the main horizontal plate to move vertically relative to the pair of pressing plates, when the pair of third pressing plates lean against the upper side of the pair of sliding plates.

[0030] According to one embodiment, the pair of third pressing plates is connected below the main horizontal plate, and the pair of third pressing plates can approach each other in the transverse direction under the action of the drive mechanism.

[0031] According to one embodiment, the drive mechanism further comprises a pair of median horizontal plates located between the pair of third pressing plates and the main horizontal plate, the pair of third pressing plates is connected to the main horizontal plate via the pair of median horizontal plates, the pair of median horizontal plates is fixed in the horizontal direction relative to the pair of third pressing plates, the two median horizontal plates are fixed in the vertical direction relative to the main horizontal plate.

[0032] According to one embodiment, guide rail grooves extending in the transverse direction are arranged at the two longitudinal ends of the pair of middle horizontal plates, and the main horizontal plate is provided with a guide rail housed in the guide rail grooves, and through the cooperation of the guide rail and the guide rail grooves, the pair of middle horizontal plates and the pair of third pressing plates are suspended in connection below the main horizontal plate.

[0033] According to one embodiment, the middle horizontal plates are always glued (or rest) against the lower surface of the main horizontal plate throughout the entire processing process, and slides are arranged between the middle horizontal plates and the main horizontal plate.

[0034] According to one embodiment, the drive mechanism comprises a spring element extending in the transverse direction between the main horizontal plate and the middle horizontal plates, one end of said spring element bearing against the first interlocking part, and the other end of said spring element bearing against the second interlocking part, the first interlocking part is fixed relative to the middle horizontal plates, the second interlocking part is fixed relative to the main horizontal plate, and an opening is formed on the middle horizontal plates to receive the second interlocking part which slides into it, said spring element is configured to actuate the third pressing plate in the transverse direction.

[0035] According to one embodiment, a nitrogen gas spring is provided between the middle horizontal plate and the pair of third pressing plates, the nitrogen gas spring is configured to impose a pressure on the pair of third pressing plates, and when the spring is at its maximum extension length, it can be locked to allow the pair of third pressing plates to move vertically with the main horizontal plate.

[0036] According to one embodiment, the third processing device comprises a third lower mold, the pair of sliding plates are installed on the third lower mold, and the third lower mold also comprises stops positioned on the transverse outer side of the two rows of drive parts of the sliding plate, when the drive mechanism moves downwards, the stops are in contact with the transverse outer surface of the corresponding drive parts of the sliding plate.

[0037] According to one embodiment, the stops designate two rows of stops corresponding to the two rows of drive parts of the sliding plate, and a first slider or roller is installed on the contact surface between each stop and the drive part of the sliding plate.

[0038] According to one embodiment, the bottom of the third pressing plate is provided with two groups of projections corresponding to the transverse undulations formed on the raw plate, the two groups of projections are arranged longitudinally, and a characteristic structure corresponding to the characteristic patterns on the transverse undulations is arranged in the position adjacent to the projections to the third shaping projection, said characteristic structure comprising a positioning projection, the positioning projection is used to penetrate deeply into the depression parts on the corresponding characteristic patterns of the raw plate.

[0039] According to one embodiment, under the action of the drive mechanism, the pair of sliding plates approach each other at a first predetermined speed, and the third shaping projection moves downwards at a second predetermined speed, the pair of third pressing plates approach each other at a third predetermined speed, the first predetermined speed, the second predetermined speed and the third predetermined speed are specifically linked to the predetermined shaping profile of the intersection part of the transverse and longitudinal undulations.

[0040] According to one embodiment, the pair of third pressing plates are driven by the pair of sliding plates. Description of the figures

[0041] For a better understanding of the objects, features, advantages, and functions described above and others of the present invention, please refer to the preferred embodiments illustrated in the accompanying figures. Identical reference numbers in the figures refer to similar components. It should be understood by those skilled in the art that the accompanying figures are intended to schematically illustrate preferred embodiments of the present invention without any limitation on the scope of the present invention, and that the various components shown in the figures are not drawn to scale.

[0042] [Fig. 1] is a schematic diagram of a first processing device of the processing system according to certain preferred embodiments of the present invention;

[0043] [Fig.2] is a schematic diagram of the upper mold of the first processing device in [Fig.1];

[0044] [Fig.3] is a schematic diagram of the lower mold of the first processing device in [Fig.1];

[0045] [Fig.4] is a schematic diagram of a second processing device of the processing system according to certain preferred embodiments of the present invention;

[0046] [Fig.5] is a schematic diagram of the upper mold of the second processing device in [Fig.4];

[0047] [Fig.6] is a schematic diagram of the lower mold of the second processing device in [Fig.4];

[0048] [Fig.7A] is a partial schematic diagram of the characteristic pattern structure of the upper mold in [Fig.5], with a certain view;

[0049] [Fig.7B] is a partial schematic diagram of the characteristic pattern structure of the upper mold in [Fig.5], with another view;

[0050] [Fig.7C] is a partial schematic diagram of the characteristic pattern structure of the upper mold in [Fig.5], with yet another view;

[0051] [Fig.8] is a schematic diagram of a third processing device of the processing system according to certain preferred embodiments of the present invention;

[0052] [Fig.9] is a side diagram of the third processing device in [Fig.8];

[0053] [Fig. 10] is a schematic diagram of the upper mold of the third processing device in [Fig.8];

[0054] [Fig. 11] is a schematic diagram of the lower mold of the third processing device in [Fig.8];

[0055] [Fig. 12] is a schematic diagram of the third processing device in [Fig.8] after the main horizontal plate is removed;

[0056] [Fig. 13] is a schematic diagram of the view of [Fig. 12] after the central horizontal plate is removed;

[0057] [Fig. 14] is a separate schematic diagram of the drive part of the sliding plate and the force receiving part of the third processing device in [Fig.8].

[0058] Reference numbers in the attached figures:

[0059] First treatment device 100

[0060] First upper mold 110

[0061] First lower mold 120

[0062] First upper pressing plate 130

[0063] First upper median pressing plate 131

[0064] First upper end pressing plate 132

[0065] First lower pressing plate 140

[0066] First shaping projection 150

[0067] First part of depression 160

[0068] Second treatment device 200

[0069] Second upper mold 210

[0070] Second lower mold 220

[0071] Second upper pressing plate 230

[0072] Second lower pressing plate 240

[0073] Second shaping projection 250

[0074] Characteristic pattern structure 260

[0075] Lower surface center 261

[0076] Incision part 262

[0077] Part of depression 263

[0078] Hollow 264

[0079] Second part of depression 270

[0080] Corresponding characteristics 281

[0081] Third treatment device 500

[0082] Sliding plate 50

[0083] Third lower mold 53

[0084] Stop 54

[0085] First slider 55

[0086] Part of transverse undulating depression 56

[0087] Part of longitudinal undulating depression 57

[0088] Guide rail grooves 58

[0089] Third pressing plate 60

[0090] Second part of the interlocking 61

[0091] First part of the interlocking 62

[0092] Rail support 63

[0093] Rail 631

[0094] Main horizontal plate 71

[0095] Vertical plate 72

[0096] Horizontal median plate 73

[0097] Nitrogen gas spring 74

[0098] Projection 76

[0099] Training block 77

[0100] Inclined face 771

[0101] Second bucket grout 7 8

[0102] Element of res sort 79

[0103] Third shaping projection 81 Specific embodiments

[0104] Specific embodiments of the present invention are described in detail below with reference to the accompanying figures. The description below relates only to preferred embodiments of the present invention. A person skilled in the art can devise other embodiments of the present invention based on the preferred embodiments, without departing from the scope of the present invention.

[0105] The present invention relates to a system for processing metal plates used in liquefied gas storage tanks for transport equipment, particularly marine equipment such as ships. This processing system applies to the non-cutting processing of the metal plate, said metal plate being corrugated sheet, and can be used in the manufacture of storage containers such as LNG storage tanks. These storage tanks are specifically liquefied gas storage tanks for marine equipment or land-based cryogenic liquid freezing devices. Figures 1 to 14 show schematic diagrams of a processing device according to certain preferred embodiments of the present invention;

[0106] First, it should be noted that the terms direction and position mentioned in the present invention are indicative rather than limiting. The positions of the components should be understood as relative positions rather than absolute positions, and the extension directions of the components should be understood as relative directions rather than absolute directions. The terms direction and position related to the processing device can be understood by reference to the positions and directions of various components shown in Figures 1 to 14. For example, terms such as "upper side," "upward," "lower side," and "downward" for various components of various processing devices can be interpreted by reference to the direction in which the various processing devices are positioned, as shown in the accompanying figures. The "upward" or "downward" direction is along the vertical direction indicated by D3; the "transverse direction" and the "longitudinal direction" are two horizontal directions perpendicular to each other, with the transverse direction indicated by D2 and the longitudinal direction indicated by D1. The vertical direction D3, the transverse direction D2, and the longitudinal direction D1 are orthogonal in space.The "longitudinal corrugations" of metal plates (or corrugated plates) refer to the corrugations extending in the longitudinal direction, and the "transverse corrugations" refer to the corrugations extending in the transverse direction.

[0107] The processing system of the present invention comprises a first processing device 100, a second processing device 200, and a third processing device 500 arranged sequentially according to the processing order. The raw sheet passes through the first processing device 100, the second processing device 200, and the third processing device sequentially until it is finalized. The first processing device 100, the second processing device 200, and the third processing device are arranged independently of each other, but are sequenced and positioned relative to each other in a processing or processing chain. Figures 1 to 3 show the first processing device 100, Figures 4 to 7C show the second processing device 200, and Figures 8 to 14 show the third processing device 500.

[0108] First, with reference to Figures 1 to 3, the first processing device 100 comprises a first upper mold 110 and a first lower mold 120. An upper pressing plate 130 extending along a horizontal plane (delimited in the transverse direction D2 and the longitudinal direction D1) is disposed on the lower side of the first upper mold 110, and a first lower pressing plate 140 extending along the horizontal plane is disposed on the upper side of the first lower mold 120. During processing, the raw plate is clamped between the first upper pressing plate 130 and the first lower pressing plate 140.

[0109] The first processing device 130 is provided with a first shaping projection 150 extending in the transverse direction; the lower end of the first shaping projection 150 is provided with a predetermined shaping profile Having a longitudinal dimension that gradually decreases towards the bottom, the predetermined shaping profile is smooth, without folds, depressions, or protruding structures (especially in the central area), and there is no unique central area structure. The first predetermined shaping profile has the same shape in any delimited cross-section in both the vertical and longitudinal directions. The first processing device 100 is configured to form transverse undulations on the raw plate. Correspondingly, a first depression 160 is formed on the upper surface of the first lower mold 120. The shape and dimensions of the first depression 160 correspond to those of the first shaping protrusion 150 to allow the raw plate to deform under the action of the first shaping protrusion 150.Preferably, the first shaping projection 150 is installed removably on the first upper mold 110.

[0110] Preferably, said first upper pressing plate 130 is provided with two first shaping projections 150, and the first upper pressing plate 130 comprises a central upper pressing plate 131 and end upper pressing plates 132 positioned on both sides of the central upper pressing plate 131, the first two shaping projections 150 extending respectively along the junction position between the central upper pressing plate 131 and the end upper pressing plates 132. Said first upper pressing plate 130 is configured such that during the shaping process, the central upper pressing plate 131 is first actuated towards the first lower pressing plate 140, the end upper pressing plates 132 and the first two shaping projections 150 are then actuated towards the first lower pressing plate 140.That is to say, when the first processing device 100 is used to process the raw plate, the upper middle pressing plate 131 of the first upper pressing plate 130 first compresses the raw plate downwards to position it. Then, the upper end pressing plates 132 and the first shaping protrusions 150 fall together and are shaped onto the raw plate. On the one hand, such an arrangement can prevent the raw plate from moving relative to the first processing device 100 and improve the accuracy of the processing; on the other hand, it can guarantee the thickness of the upper middle pressing plate 131 and prevent it from being stretched or thinned during processing.However, a spring may be provided on the upper side of the upper middle pressing plate 131 and / or the upper end pressing plates 132; the spring causes the upper middle pressing plate 131 and / or the upper end pressing plates 132 to move downwards.

[0111] With reference to Figures 4 to 7C, the second processing device 200 comprises a second upper mold 210 and a second lower mold 220. The second upper pressing plate 230 extending along a horizontal plane (delimited in the transverse direction D2 and the longitudinal direction D1) is disposed on the lower side of the second upper mold 210, and the second lower pressing plate 240 extending along the horizontal plane is disposed on the upper side of the second lower mold 220. During processing, the raw plate is clamped between the second upper pressing plate 230 and the second lower pressing plate 240.

[0112] The second shaping projection 250, extending in the transverse direction, is disposed on the lower surface of the second upper pressing plate 230. The lower end of the second shaping projection 250 has a second predetermined shaping profile that gradually decreases towards its lower side. The second shaping projection 250 has a characteristic pattern structure 260 at its central transverse position. The characteristic pattern structure 260 is configured to shape characteristic patterns on the transverse undulations of the blank plate. The shape and size of the second shaping projection 250, with the exception of the characteristic pattern structure 260, are consistent with those of the first shaping projection 150.

[0113] Figures 7A to 7C illustrate in detail the structure of characteristic motifs 260. Figures 7A to 7C show different views of the characteristic pattern structure 260. To display the characteristic pattern structure 260 more clearly, [Fig. 7C] is an inverted view relative to Figures 4 to 7A. More precisely, a bulge is formed at the center of the lower surface 261 of the characteristic pattern structure 260. The lower surface of the characteristic pattern structure has four hollows 264 around the bulge, of which two hollows 264 are symmetrical in the longitudinal direction with respect to the bulge, and two other hollows 264 are symmetrical in the transverse direction with respect to the bulge. Preferably, the projected area of ​​the two hollows 264 symmetrical in the longitudinal direction is larger than the projected area of ​​the two hollows 264 symmetrical in the transverse direction.

[0114] Preferably, the characteristic pattern structure 260 comprises a pair of depression parts 263, the pair of depression parts 263 being arranged symmetrically in the transverse direction around the center of the lower surface 261 of the characteristic pattern structure 260 and located on the lateral surface of the second shaping projection 250; The characteristic pattern structure 260 also comprises a pair of incision parts 262 arranged symmetrically in the longitudinal direction around the center of the lower surface 261 of the The characteristic pattern structure 260 is located on the lower surface of the second shaping projection 250. It can be understood that the pair of incised parts 262 and the pair of depression parts 263 are arranged around the four hollows 264; that is, the four hollows 264 are closer to the center of the lower surface 261 of the shaping projection. In particular, the concavity depth of the pair of incised parts 262 is greater than the concavity depth of the pair of depression parts 263. For example, with reference to [Fig. 7C], the concavity dimension of the pair of incised parts 262 relative to the lower surface of the second shaping projection 250 is greater than that of the pair of depression parts 263 in the longitudinal direction relative to the lateral surface of the second shaping projection 250.

[0115] According to the present invention, the structural shape of the intersection of the transverse and longitudinal corrugations of the profiled corrugated plates is primarily processed and shaped by the second processing device 200. The processing of the specific structural shape of this intersection is independent of the processing of the transverse corrugations. Compared to the traditional solution of processing the characteristic structure at the center of the transverse corrugations while simultaneously processing the transverse corrugations, the present invention consists of processing the characteristic structure at the center of the already shaped transverse corrugations, and the shaping of the characteristic structure is independent of the shaping of the transverse corrugations.Compared to using a flat raw plate as a processing base, the present invention uses already shaped transverse undulations as a processing base, which can make shaping the characteristic structure more precise and is more conducive to shaping the final intersection part.

[0116] It should be noted that the characteristic patterns at the central position of the transverse undulations formed by the second processing device 200 are not completely equivalent to the processing characteristics in the intersection zone of the ultimately formed corrugated plates. The characteristic patterns formed by the second processing device 200 can be considered as the initial profile of the characteristic patterns on the ultimately formed intersection portion. During the processing of the raw plate by the third processing device, the deformation direction at the intersection position of the transverse and longitudinal undulations is guided by the initial profile.For example, the intersection part of the finally shaped corrugated plates also has a pointed projection corresponding to the incision part 262, but the size of the pointed projection is approximately the same as that of the incision part 262, i.e. the shaping of the pointed projection was completed in the second stage of . processing; the intersection of the finally formed corrugated plates is provided with a ridge, the ridge corresponding to the lower central zone surrounded by four depressions 264 in Figures 7A to 7C, the width of this ridge (i.e., the dimension in the longitudinal direction) is approximately equal to that of the lower central zone. The structural shape of the depression 263 facilitates the formation of the interface zone between the longitudinal undulations and the characteristic part of the corrugated plate corresponding to the depression 263 during the shaping of the longitudinal undulations; the small depressions formed by the second processing device 200 are transformed into ridges after processing by the third processing device 500; the small protrusions formed by the second processing device 200 are transformed into pointed protrusions after processing by the third processing device 500.Figures 7A to 7C show that the characteristic pattern structure is particularly advantageous for improving forming stability and the controllability of the final formed corrugated sheet. The second processing unit 200 is installed independently of the first processing unit 100 and the third processing unit 500 to form characteristic patterns, which is particularly advantageous for meeting the forming requirements of double transverse corrugations. If the second processing unit 200 is integrated with the first processing unit 100 or the third processing unit 500, asymmetrical deformation will occur at the intersection of the corrugated sheets having double transverse corrugations.

[0117] The second lower mold 220 has a second depression part 270 corresponding to the second shaping projection 250 to receive the second shaping projection 250. The second depression part 270 is formed with features 280 corresponding to the characteristic pattern structure 260.

[0118] With reference to Figures 8 to 14, the third processing device 500 of the present invention also has certain preferred arrangements compared to traditional processing devices. First, with reference to Figures 8 and 9, the third processing device 500 comprises a third upper mold and a third lower mold 53. The third lower mold 53 has a pair of sliding plates 50 arranged side by side in the transverse direction, and the third upper mold has a pair of third pressing plates 60 arranged side by side in the transverse direction, a third shaping projection 81, and a drive mechanism.Among these elements, the pair of sliding plates 50 can move away from and towards each other in the transverse direction, and the pair of third pressing plates 60 are located correspondingly on the upper side of the pair of sliding plates 50, so that the corrugated plate can be compacted between the pair of sliding plates. 50 and the pair of third pressing plates 60. The third shaping projection 81 is positioned between the pair of sliding plates 60; the lower end of the third shaping projection 81 has a predetermined third shaping profile with a transverse dimension that gradually decreases towards the bottom. The drive mechanism comprises the drive portion of the sliding plate in contact with the pair of sliding plates 50, and the drive portion of the third shaping projection connected to the third shaping projection 81.

[0119] The drive mechanism may comprise a main horizontal plate 71 and a vertical plate 72 connected together. The vertical plate 72 extends downwards from the center of the main horizontal plate 71 in the transverse direction. On the drive portion, such as the drive block 77, the upper side of the drive block 77 is fixed to the main horizontal plate 71. The third shaping projection 81 is formed as a single piece on the lower end of the vertical plate 72. There are several drive blocks 77, and several drive blocks 77 are divided into two rows. The two rows of drive blocks 77 are respectively positioned on the transverse outer side of the pair of third pressing plates 60. The force-receiving portion 51 corresponding to the drive block 77 is installed on the transverse outer side of the pair of sliding plates 50.The face of the drive block 77 that applies a force to the force receiving part 51 is an inclined face 771; the face of the force receiving part 51 that faces this is also an inclined face. The contact between the inclined faces allows the downward vertical movement of the drive block 77 to be converted into a transverse movement of the sliding plate 50.

[0120] More specifically, when the drive mechanism causes the third shaping protrusion 81 to move downwards at a constant speed, the inclined face of the drive block 77 comes into contact with the force-receiving portion 51 of the sliding plate 50, causing the entire sliding plate 50 to move at a constant speed. Alternatively, the inclined face can be an irregularly inclined surface, in which case the downward movement of the drive block 77 at a constant speed can be converted into a transverse movement of the sliding plate 50 at a variable speed. The lower mold 53 also includes stops 54 positioned on the transverse outer side of the two rows of drive blocks 77; when the drive mechanism moves downwards, the stops 54 come into contact with the transverse outer surface of the corresponding drive blocks 77.The stops 54 are two rows of stops corresponding to the two rows of drive blocks 77, and a first slide 55 or roller is installed on the contact surface between each stop 54 and the drive block 77. The training effect of the two rows of training blocks 77 can reduce the rate of raw plate thinning.

[0121] The pair of third pressing plates 60 are connected below the main horizontal plate 71, and the pair of third pressing plates 60 can move closer to each other in the transverse direction under the action of the drive mechanism. With reference to [Fig. 12] and 13, guide rail grooves extending in the transverse direction are arranged at the two longitudinal ends of the pair of third pressing plates 60. The main horizontal plate is provided with a guide rail 631 housed in the guide rail grooves. The guide rail 631 is installed on the guide rail support 63. Through the interaction of the guide rail 631 and the guide rail grooves, the pair of third pressing plates 60 are suspended in connection below the main horizontal plate 71.Similarly, in order to allow the pair of sliding plates 50 to move in the transverse direction, guide rail grooves 58 are respectively provided at the two longitudinal ends of the pair of sliding plates 50.

[0122] The drive mechanism also includes a pair of horizontal center plates 73 located between the pair of third pressing plates 60 and the main horizontal plate 71. The pair of third pressing plates 60 are connected to the main horizontal plate 71 via the pair of horizontal center plates 73. The pair of horizontal center plates 73 are fixed in the horizontal direction relative to the pair of third pressing plates 60, and the pair of horizontal center plates 73 are fixed in the vertical direction relative to the main horizontal plate 71. The horizontal center plate 73 bears against the lower surface of the main horizontal plate 71.That is to say, in the vertical direction: the middle horizontal plate 73 rests continuously against the lower surface of the main horizontal plate 71 and is fixed relative to the main horizontal plate 71, but the middle horizontal plate 73 can move relative to the third pressing plate 60; in the horizontal plane (delimited in the transverse and longitudinal directions): the middle horizontal plate 73 is fixed relative to the third pressing plate 60 but can move relative to the main horizontal plate 71, and the middle horizontal plate 73 can move jointly with the third pressing plate 60 in the transverse direction relative to the main horizontal plate 71.To facilitate the sliding of the middle horizontal plate 73 relative to the main horizontal plate 71 while in contact with the lower surface of the main horizontal plate 71, a second slide 78 is arranged between the middle horizontal plate 73 and the main horizontal plate 71.

[0123] With reference to Figures 12 and 13, a transversely extending spring element 79 is also disposed between the third pressing plate 60 and the main horizontal plate 71. The spring element 79 has a return spring function to reset the pair of pressing plates 60, which move away from each other, to their original position at the end of the process. In this case, the spring element 79 can be a delay spring. Optionally, the spring element 79 can also serve as a drive element to drive the middle horizontal plate 73 and the third pressing plate 60.In this case, one end of the spring element 79 rests against the first interlocking part 62, and the other end of the spring element 79 rests against the second interlocking part 61, the first interlocking part 62 is fixed relative to the horizontal median plate 73, the second interlocking part 61 is fixed relative to the main horizontal plate 71 (for example, the second interlocking part 61 is fixed on the vertical plate 72), and an opening is formed on the horizontal median plate 73 to receive the second interlocking part 61 which slides into it. The spring element 79 can always be a delay spring; after the third pressing plate 60 has fallen into the joint position with the sliding plate 50, the spring element 79 begins to apply a force on the first interlocking part 62, thus pushing the pair of third pressing plates 60 towards the middle.Alternatively, the first interlocking part 62 and the second interlocking part 61 can be installed in the opposite direction, and the spring element 79 does not serve as an element intended to make the pair of third pressing plates 60 move towards each other, but is an element intended to make the pair of third pressing plates 60 move away from each other at the end of the treatment, as described previously.

[0124] It can be understood that the drive part of the third shaping projection and the drive part of the sliding plate are fixed relative to each other, the drive part of the third shaping projection and the third shaping projection 81 are fixedly connected, and the drive part of the sliding plate comes into frictional contact to drive the sliding plate 50, so that, although the speed and direction of movement of the drive part of the third shaping projection and the drive part of the sliding plate are the same, the speeds and direction of movement of the third shaping projection 81 and the sliding plate 50 are different.However, under the action of the drive mechanism, the speed at which the pair of sliding plates 50 approach each other in the transverse direction is called the first predetermined speed, the speed at which the drive mechanism (e.g., the main horizontal plate) moves towards the . The lower speed is called the second predetermined speed. The pair of third pressing plates 60 can also move closer to each other in the transverse direction under the action of the drive mechanism, and this speed is called the third predetermined speed. The first predetermined speed, the second predetermined speed, and the third predetermined speed are specifically related to the predetermined shaping profile of the intersection of the transverse and longitudinal corrugations.

[0125] In addition to the spring element 79 extending in the transverse direction described above, the drive mechanism may have various options for driving the pair of third pressing plates 60. For example, according to some other embodiments, the pair of third pressing plates is driven by the pair of sliding plates; that is, the drive mechanism indirectly drives the third pressing plates by driving the pair of sliding plates. In this case, there may be a joining feature between the third pressing plate and the sliding plate. This joining feature allows the third pressing plate and the sliding plate to be separated in the vertical direction but restricts their transverse separation in the joined state.Alternatively, the drive mechanism includes a press plate drive portion that exerts a force on the pair of third press plates and is distinct from the spring element 79. The press plate drive portion is either independent of the sliding plate drive portion or formed as a single unit with it. When the press plate drive portion and the sliding plate drive portion are formed as a single unit, an inclined face may also be provided at the bottom of the drive block. When the inclined face at the bottom exerts a force on the slide, the inclined face on its inner lateral side exerts a force on the third press plate.

[0126] Preferably, the upper mold of the third processing device is configured to allow the pair of third pressing plates 60 to move vertically with the main horizontal plate 71; which also allows the main horizontal plate 71 and the middle horizontal plate 73 to move vertically relative to the pair of third pressing plates 60, when the pair of third pressing plates 60 rests against the upper side of the pair of sliding plates 50.

[0127] The upper third mold may include a nitrogen gas spring 74 disposed between the horizontal median plate 73 and the pair of third pressing plates 60; the nitrogen gas spring 74 is configured so that it can be locked at its maximum extension length to allow the pair of third plates to Pressing plate 60 moves vertically with the main horizontal plate 71 and the middle horizontal plate 73. The upper end of the nitrogen gas spring 74 is fixed on the middle horizontal plate 73, and the lower end of the nitrogen gas spring 74 is fixed on the pair of third pressing plates 60.

[0128] When it is necessary to lift the third pressing plate 60, the drive mechanism can be activated to move upwards. In the first stage of the upward movement of the drive mechanism, the main horizontal plate 71 and the middle horizontal plate 73 move upwards relative to the third pressing plate 60, and the nitrogen gas spring 74 is positioned between the middle horizontal plate 73 and the third pressing plate 60 to restore its original length. When the nitrogen gas spring 74 is stretched to its maximum extension length, the upward movement process of the drive mechanism (which can be understood as the upward movement process of the main horizontal plate 71) enters the second stage.In the second stage of the upward movement of the drive mechanism, the third pressing plate 60 moves upwards with the main horizontal plate 71 and the middle horizontal plate 73, the third pressing plate 60 moves upwards away from the sliding plate 50, which allows the operator to deposit the raw plate between the third pressing plate 60 and the sliding plate 50.

[0129] After the raw plate has been placed between the third pressing plate 60 and the sliding plate 50, the drive mechanism can be actuated to move downwards. In the first stage of the downward movement of the drive mechanism, the nitrogen gas spring 74 is at its maximum extension length, and the third pressing plate 60 is actuated by the drive mechanism to move downwards with the drive mechanism.When the third pressing plate 60 rests against the upper surface of the sliding plate 50, the downward movement of the drive mechanism (which can be understood as the downward movement of the main horizontal plate 71) enters the second stage. In this stage, the third pressing plate 60 no longer moves vertically, the drive mechanism moves downward with the middle horizontal plate 73 and the main horizontal plate 71 relative to the third pressing plate 60, and the nitrogen gas spring 74 is compressed. The second stage is complete when the nitrogen gas spring 74 reaches its minimum extension length (i.e., when it is fully compressed). It should be noted that the nitrogen gas spring 74 is installed in an inverted position; in the installed state, the upper end of the nitrogen gas spring 74 is at the bottom, and its lower end is at the top.

[0130] In the second stage of the downward movement of the drive mechanism, the third shaping projection 81, the sliding plate 50 and the third plate The pressing plates 60 move under the action of the drive mechanism, shaping the raw plate. That is to say, the function of the first stage of the downward movement of the drive mechanism is to drive the third pressing plate 60 downwards; the function of the second stage of the downward movement of the drive mechanism is to drive downwards the third shaping projection 81, the pair of sliding plates 50 and the pair of third pressing plates 60, bringing them closer together in the transverse direction towards the middle.

[0131] The lower surface of the third pressing plate 60 is provided with projections 76 corresponding to the transverse undulations on the blank plate. However, the projections 76 are divided into two groups, the two groups of projections 76 are arranged longitudinally, and a characteristic structure corresponding to the characteristic patterns is arranged adjacent to the projections 76 of the third shaping projection 81. The characteristic structure includes a positioning projection. The positioning projection is used to penetrate deeply into the depressions on the corresponding characteristic patterns of the blank plate, such as the depressions formed corresponding to the incisions in Figures 7A to 7C. The interaction of the positioning projection and the depressions facilitates the positioning and fixing of the blank plate and prevents its displacement during processing.Furthermore, in the first stage of the processing, the corresponding depression part on the raw plate can be positioned first by means of the positioning projection, then in the second stage, the third shaping projection 81, the pair of sliding plates 50 and the pair of third pressing plates 60 are driven downwards so that they approach the middle in the transverse direction, this solution makes it possible to reduce the thinning rate of the raw plate.

[0132] Correspondingly, the third lower mold 53 comprises depression sections with transverse corrugations 56 and depression sections with longitudinal corrugations 57. According to the present invention, the base, already shaped with longitudinal corrugations, does not have a shaping base that can move upwards, but is provided with a depression section with longitudinal corrugations 57 that is fixed in the vertical direction to increase some shaping flexibility. The raw plate, after passing through the first two processes, is compacted by the third shaping projection 81 and adapted to the depression section with longitudinal corrugations 57 to shape the corrugated plate having an ideal predetermined shaping profile. Such an arrangement makes it possible to reduce the external force to which the raw plate is subjected (without being subjected to the upward force of the shaping base) and to further reduce the thinning rate..

[0133] The above arrangement allows for a specific correlation between the transverse movement speed of the pair of sliding plates 50 (the first predetermined speed), the downward movement speed of the third shaping projection 81 (the second predetermined speed) and the transverse movement speed of the pair of third pressing plates 60 (the third predetermined speed), this correlation is specifically defined for the predetermined shaping profile of the intersection part of the transverse and longitudinal undulations.

[0134] In addition to the above embodiments, the drive mechanism can also be provided with other arrangements so that the first predetermined speed, the second predetermined speed, and the third predetermined speed are specifically linked to the predetermined shaping profile of the intersection portion. For example: the drive mechanism can be fixedly connected to the sliding plate and / or the third pressing plate, and / or connected to the third shaping projection by rolling or sliding friction; the drive mechanism itself can include a linkage mechanism that is not fixedly connected. For example, the drive mechanism can include the first drive portion, the second drive portion, and the third drive portion.The first drive section, the second drive section, and the third drive section can have different directions of movement and / or speeds. The first drive section can be connected to the sliding plate, the second drive section to the third shaping projection, and the third drive section to the third pressing plate. The drive mechanism can include a control module. The control module can be programmed to drive the sliding plates to move closer together at the first predetermined speed, to drive the third shaping projection downwards at the second predetermined speed, and to drive the third pressing plates to move closer together at the third predetermined speed.

[0135] The third processing device 500 of the present invention guarantees not only that the third pressing plate 60 can move vertically relative to the main horizontal plate 71, but also achieves that a pair of third pressing plates 60 can compress towards the third shaping projection 81 in the transverse direction, such an arrangement allows the third pressing plates 60 to fulfill two functions at once: the positioning and shaping of the raw plate;

[0136] The operating process of the third processing device 500 is described below with reference to Figures 8 and 13.

[0137] When the third processing device 500 is to be used after processing by the second processing device 200, the drive mechanism can be activated first to move upwards in order to lift the third pressing plate 60.More specifically, during the first stage of the upward movement of the drive mechanism, the nitrogen gas spring 74 returns to its original length, the third pressing plate 60 does not move, the main horizontal plate 71 and the middle horizontal plate 73 move upwards relative to the third pressing plate 60; in the second stage of the upward movement of the drive mechanism (which can be understood as the upward movement of the main horizontal plate 71), the nitrogen gas spring 74 is stretched to its maximum length, the drive mechanism causes the third pressing plate 60 to move upwards, and the pressing plate 60 moves upwards away from the sliding plate 50.Furthermore, in this case, it is also necessary to move the pair of sliding plates 50 away from each other in the transverse direction, and to move the pair of third pressing plates 60 away from each other in the transverse direction.

[0138] Next, the operator places the raw plate in the space between the sliding plate 50 and the third pressing plate 60 so that the transverse corrugations of the raw plate are precisely positioned at the depression and compressed by the corresponding projection 76. The drive mechanism is then actuated to move downwards. In the first stage of the downward movement of the drive mechanism, the nitrogen gas spring 74 is at its maximum extension length, and the third pressing plate 60 moves downwards with the main horizontal plate 71 and the middle horizontal plate 73 until the third pressing plate 60 rests against the upper side of the sliding plate 50. In this case, the flat part of the raw plate and the pair of depressions on the transverse corrugations are compressed by the third pressing plate 60 and the sliding plate 50.

[0139] Next, the drive mechanism continues to move downwards, and this step constitutes the second stage of the downward movement of the drive mechanism. During the second stage of the downward movement of the drive mechanism, the nitrogen gas spring 74 is compressed, and the drive mechanism can no longer actuate the third pressing plate 60 downwards. The second stage of the movement of the drive mechanism (i.e., the second stage of the downward movement of the main horizontal plate 71) consists mainly of actuating the third shaping projection 81 downwards, causing the sliding plate 50 and the third pressing plate 60 to move in the transverse direction.

[0140] During the second stage of actuation of the drive mechanism, the third shaping projection 81 fixedly installed on the lower end of the vertical plate 72 of the drive mechanism moves downwards at the second predetermined speed with the drive mechanism; however, the drive block 77 of the drive mechanism comes into contact with the force receiving part 51 of the sliding plate 50 by pushing it; when the drive mechanism moves downwards at the second predetermined speed, the pair of sliding plates 50 approach each other at the first predetermined speed; however, the delay spring element 79 begins to operate, so that the pair of third pressing plates 60 also approach each other.Alternatively, the third pressing plates 60 approach each other by being driven by a pair of sliding plates 50 or directly by the drive mechanism. The first to third predetermined speeds are specifically linked, and "specifically linked" means that the correlation between the second predetermined speed, the first predetermined speed, and the third predetermined speed is specifically defined for the predetermined shaping profile of the intersection portion. Such a specific arrangement takes into account concave and convex shapes of the intersection portion, defining a higher speed during the corresponding period when abrupt deformation is required, and defining a lower speed during the corresponding period when gentle deformation is required.

[0141] During the second actuation stage of the drive mechanism, a pair of third pressing plates 60, the third shaping projection 81, and a pair of sliding plates 50 jointly compress the raw plate to shape predetermined longitudinal corrugations and the intersection portion. A specific correlation between the operating speeds of the various parts of the raw plate moving in different directions is defined so that the shaping process is particularly suited to corrugated plates having the predetermined corrugation shape.Furthermore, the characteristic pattern structure processed by the second processing device can form predetermined weak points on the transverse undulations of the raw plate, so that during processing by the third processing device, the intersection of the longitudinal and transverse undulations can be deformed and shaped into a predetermined form.

[0142] At the end of the second actuation stage of the drive mechanism, the pair of sliding plates 50 move as close to each other as possible, the pair of third pressing plates 60 also move closer to each other, and the third shaping projection 81 is compressed between the pair of plates sliding 50. In this case, the nitrogen gas spring 74 is at its minimum extension length.

[0143] The first to third predetermined speeds may be constant or variable. For example, in the first stage of the downward movement of the drive mechanism, the entire main horizontal plate 71 may move downwards at a constant speed. In the second stage of the downward movement of the main horizontal plate 71, due to the reaction force of the nitrogen gas spring 74, the speed of movement, namely the speed of movement of the driven shaping projection 81 (the second predetermined speed), may also be variable, for example, a change of speed with gradual deceleration. In other embodiments, the control system that controls the downward movement of the drive mechanism may be pre-programmed and execute such operating logic: in the second stage,The action force applied to the drive mechanism is progressively increased. This increased action force can balance with the reaction force of the nitrogen gas spring 74, so that the drive mechanism moves downwards at a constant speed during the second stage. That is, the speed of movement of the driven shaping projection 81 in this case (the second predetermined speed) can still be approximately constant. Whether the downward speed of the shaping projection 81 in the second stage is constant or not, the speed of movement of the slides 50 can be linearly related to the second predetermined speed. For example, when the second predetermined speed is not constant, the first and third predetermined speeds are also inconstant speeds; when the second predetermined speed is a constant speed,The first predetermined speed and the third predetermined speed are also constant speeds. Alternatively, the inclined face of force application of the drive block 77 can be set as an irregular inclined surface, so that the first predetermined speed and the third predetermined speed can be nonlinearly related to the second predetermined speed; for example, when the second predetermined speed is a constant speed, the first predetermined speed and the third predetermined speed can be inconstant speeds.

[0144] It should be noted that the "speed" mentioned in the present invention should be understood as the speed rate value; for example, the "first predetermined speed is not equal to the second predetermined speed" mentioned in the present invention means that at any time node, the rate value of the first The predetermined speed of the transient state is not equal to the rate value of the second predetermined speed of the transient state.

[0145] With the embodiments described above, it can be seen that the drive mechanism of the third processing device of the present invention is uniquely configured for predetermined forming corrugations, specifically so that the operating speeds of various parts of the raw plate that move in different directions and compress the raw plate are specifically linked, making the forming process particularly suitable for corrugated plates having the predetermined corrugated shape. Corrugated plates manufactured by such a process will have the best uniformity, fluidity, and material strength at the level of the formed corrugations, particularly at the intersection of the transverse and longitudinal corrugations.

[0146] It should be noted that the first and second processing devices of the present invention each have two parallel shaping projections, and that the third processing device is provided with two projections. Consequently, the corrugated sheet processed by such a processing system has two transverse corrugations and therefore two intersecting parts. Such corrugated sheets have more uses than traditional corrugated sheets; for example, corrugated sheets can be moderately bent and used at the corners of storage containers to prevent liquid leakage at the corners. It can be understood that the drive portion of the two-row slides of the third processing device of the present invention is particularly suited to processing corrugated sheets with a large longitudinal length.The drive section of the double-row slides can apply force uniformly, so that the slides and pressing plates move at a relatively constant speed.

[0147] The present invention also relates to a corrugated plate treated by the third treatment device according to the above embodiments, and a storage container comprising this corrugated plate. The storage container is in particular a liquefied gas storage tank for marine equipment such as ships, in which the liquefied gas is liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen, and liquid helium, etc.

[0148] The above description of various embodiments of the present invention is provided for descriptive purposes for those skilled in the art. The invention is not intended to be exclusive or limited to any single published embodiment. As described above, those skilled in the art in the above-mentioned fields will be able to conceive of many alternatives and modifications to the present invention. Thus, even though some alternative embodiments have been specifically described above, Above, a person skilled in the art can relatively easily conceive or develop other embodiments. The present invention includes all alternatives, modifications, and variations of the present invention, as well as other embodiments falling within the scope of the present invention described above.

Claims

1. Demands Metal plate processing system, the processing system comprising the following elements arranged in sequence according to the processing order: a first processing device (100), said first processing device is provided with a first shaping projection (150) extending in the transverse direction (D2), the lower end of the first shaping projection is provided with a predetermined shaping profile having a longitudinal dimension that gradually decreases towards the lower side, the predetermined shaping profile is smooth, the first processing device (100) is configured to shape transverse undulations on the raw plate; a second processing device (200), said second processing device is provided with a second shaping projection (250) extending in the transverse direction, the lower end of the second shaping projection is provided with a second predetermined shaping profile having a longitudinal dimension that gradually decreases towards the lower side, a characteristic pattern structure (260) is disposed at the central transverse position of the second shaping projection, the characteristic pattern structure is configured to shape characteristic patterns on the transverse undulations of the raw plate; and a third processing device (500), said third processing device is provided with a third shaping projection (81) extending in the longitudinal direction (Dl), the third shaping projection has a smooth and uniform profile in the longitudinal direction, and is configured to shape longitudinal undulations on the raw plate, so that the intersection part of the transverse and longitudinal undulations is formed at the position of the characteristic patterns; said first processing device (100) comprises a first upper pressing plate (130) and a first lower pressing plate (140) which are separable from each other, the first shaping projection (150) projects downwards from the first upper pressing plate, and a first part of depression (160) intended to receive the first shaping projection is formed on the first lower pressing plate, and, said second processing device (200) comprises a second upper pressing plate (230) and a second lower pressing plate (240) which are separable from each other, the second shaping projection (250) projects downwards from the second upper pressing plate, a second part of depression (270) is formed on the second lower pressing plate to receive the second shaping projection, features (281) corresponding to the characteristic pattern structure are formed on the second part of depression,said characteristic pattern structure (260) comprises: a pair of depression parts (263) arranged symmetrically in the transverse direction around the center of the lower surface (261) of the characteristic pattern structure and located on the lateral surface of the second shaping projection; a pair of incision parts (262) arranged symmetrically in the longitudinal direction around the center of the lower surface of the characteristic pattern structure and located on the lower surface of the second shaping projection, however, the depth of concavity of the pair of incision parts (262) is greater than the depth of concavity of the pair of depression parts (263); characterized in that the third processing device (500) comprises: a pair of sliding plates (50), said sliding plates (50) being able to move away from and towards each other in the transverse direction (D2); a pair of third pressing plates (60), said pair of third pressing plates (60) being located correspondingly on the upper sides of the pair of sliding plates (50) to compact the raw plate between the pair of sliding plates (50) and the pair of pressing plates (60); a third shaping projection (81), said third shaping projection (81) being positioned between the pair of sliding plates (50) and extending in the longitudinal direction, the lower end of the third shaping projection (81) being provided with a predetermined third shaping profile having a dimension

2.

3. transverse which gradually decreases towards the lower side, the third predetermined shaping profile being smooth; a drive mechanism, said drive mechanism comprising: two rows of sliding plate drive parts (77), the two rows of sliding plate drive parts being respectively positioned on the transverse outside side of the pair of third pressing plates (60), and there are multiple sliding plate drive parts in each row; and a third shaping projection drive part connected to the third shaping projection (81), wherein said third shaping projection drive part and the sliding plate drive part (77) operate in a coordinated manner, such that when the sliding plate drive part causes the pair of sliding plates (50) to approach each other, the third shaping projection drive part causes the third shaping projection (81) to move downwards. Processing system according to claim 1, characterized in that, the first upper pressing plate (130) is provided with two first shaping projections (150), the first pressing plate comprises a central upper pressing plate (131) and end upper pressing plates (132) positioned on both sides of the central upper pressing plate, the first two shaping projections (150) extend respectively along the junction position between the central upper pressing plate (131) and the end upper pressing plates (132), furthermore, the first upper pressing plate (130) is configured such that during the shaping process, the central upper pressing plate (131) is first actuated towards the first lower pressing plate (140),The upper end pressing plates (132) and the first two shaping protrusions (150) are then actuated towards the first lower pressing plate (140). A processing system according to claim 1, characterized in that a bulge is formed at the central position of the lower surface of the characteristic pattern structure (260), the lower surface of the characteristic pattern structure being provided of four hollows (264) around the bulge, of which two hollows are symmetrical in the longitudinal direction with respect to the bulge, and two other hollows are symmetrical in the transverse direction with respect to the bulge.

4. Processing system according to claim 1, characterized in that, said drive mechanism comprises a main horizontal plate (71) and a vertical plate (72) connected together, and the vertical plate (72) extends from the center of said main horizontal plate in the transverse direction (D2) downwards, in which: the sliding plate drive part is a drive block (77), the upper part of the drive block is fixed on the main horizontal plate (71), and a force receiving part (51) corresponding to the drive block is disposed on the transverse outer side of the sliding plate (50), the drive block and the force receiving part are in contact with an inclined face (771); the third shaping projection (81) is fixed on the lower end of the vertical plate (72).

5. Processing system according to claim 4, characterized in that the upper mold of the third processing device is configured to allow the pair of third pressing plates (60) to move vertically with the main horizontal plate (71); which also allows the main horizontal plate (71) to move vertically relative to the pair of pressing plates (60), when the pair of third pressing plates (60) rest against the upper side of the pair of sliding plates (50).

6. Processing system according to claim 4, characterized in that the pair of third pressing plates (60) is connected below the main horizontal plate, and the pair of third pressing plates (60) can approach each other in the transverse direction under the action of the drive mechanism.

7. Processing system according to claim 6, characterized in that the drive mechanism further comprises a pair of horizontal median plates (73) located between the pair of third pressing plates (60) and the main horizontal plate (71), the pair of third pressing plates being connected to the plate main horizontal (71) via the pair of middle horizontal plates, the pair of middle horizontal plates (73) is fixed in the horizontal direction relative to the pair of third pressing plates (60), the two middle horizontal plates (73) are fixed in the vertical direction relative to the main horizontal plate (71).

8. Processing system according to claim 7, characterized in that, guide rail grooves extending in the transverse direction are arranged at the two longitudinal ends of the pair of middle horizontal plates (73), and the main horizontal plate (71) is provided with a guide rail (631) housed in the guide rail grooves, and through the cooperation of the guide rail and the guide rail grooves, the pair of middle horizontal plates (73) and the pair of third pressing plates (60) are suspended in connection below the main horizontal plate (71).

9. Processing system according to claim 8, characterized in that the middle horizontal plates (73) are always glued against the lower surface of the main horizontal plate (71) throughout the processing process, and slides (78) are arranged between the middle horizontal plates and the main horizontal plate.

10. Processing system according to claim 7, characterized in that, the drive mechanism comprises a spring element (79) extending in the transverse direction between the main horizontal plate (71) and the middle horizontal plates (73), one end of said spring element bears against the first interlocking part (62), and the other end of said spring element bears against the second interlocking part (61), the first interlocking part (62) is fixed relative to the middle horizontal plates (73), the second interlocking part (61) is fixed relative to the main horizontal plate (71), and an opening is formed on the middle horizontal plates (73) to receive the second interlocking part which slides into it, said spring element (79) is configured to actuate the third pressing plate (60) in the transverse direction.

11. A processing system according to claim 7, characterized in that a nitrogen gas spring (74) is provided between the horizontal plate median (73) and the pair of third pressing plates (60), the nitrogen gas spring is configured to impose pressure on the pair of third pressing plates (60), and when the spring is at its maximum extension length, it can be locked to allow the pair of third pressing plates (60) to move vertically with the main horizontal plate (71).

12. Processing system according to claim 1, characterized in that, the third processing device comprises a third lower mold (53), the pair of sliding plates (50) are installed on the third lower mold, and the third lower mold also comprises stops (54) positioned on the transverse outer side of the two rows of drive parts of the sliding plate, when the drive mechanism moves downwards, the stops (54) are in contact with the transverse outer surface of the corresponding drive parts of the sliding plate.

13. Processing system according to claim 12, characterized in that, the stops (54) designate two rows of stops corresponding to the two rows of drive parts of the sliding plate, and a first slide (55) or a roller is installed on the contact surface between each stop and the drive part of the sliding plate.

14. Processing system according to claim 1, characterized in that, the bottom of the third pressing plate (60) is provided with two groups of projections (76) corresponding to the transverse undulations formed on the raw plate, the two groups of projections are arranged longitudinally, and a characteristic structure (761) corresponding to the characteristic patterns on the transverse undulations is disposed in the position adjacent to the projections to the third shaping projection (81), said characteristic structure comprising a positioning projection, the positioning projection is used to penetrate deeply into the depression parts on the corresponding characteristic patterns of the raw plate.

15. A processing system according to claim 6, characterized in that, under the action of the drive mechanism, the pair of sliding plates (50) approach each other at a first predetermined speed, and the third shaping projection (81)

16. The system moves downwards at a second predetermined speed. The pair of third pressing plates then approach each other at a third predetermined speed. The first, second, and third predetermined speeds are specifically linked to the predetermined shaping profile of the intersection of the transverse and longitudinal corrugations. The processing system according to claim 6 is characterized in that the pair of third pressing plates are driven by the pair of sliding plates.

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