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 portion of the transverse and longitudinal corrugations of the profiled corrugated plates is mainly determined by the characteristic patterns processed by the second processing device on the basis of the transverse corrugations of the raw plate, the processing of the structural shape of this intersection portion is independent of the processing of the transverse corrugations.Compared with the traditional solution of processing the characteristic structure in the center of the transverse corrugations while processing the transverse corrugations, the present invention is to process the characteristic structure in the center of the already shaped transverse corrugations, and the shaping of the characteristic structure is independent of the shaping of the transverse corrugations. Figure to be published with the abstract: 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 processing without cutting of the metal plate which can be used in the storage containers. Said storage tank is specifically the liquefied gas storage cabin for marine equipment such as ships or the land liquefied gas storage cabin in which the liquefied gas is liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen, liquid helium, etc. Technical Background

[0002] LNG (liquefied natural gas) transportation generally depends on transportation equipment, such as ships and other marine equipment. The main processes of the LNG receiving station are unloading at the port, LNG storage, process treatment and outward transportation. During these processes, the LNG storage tank for storage involves the longest construction period, uses the most advanced technologies and presents the most difficulties during the construction of the project, is always managed as a key stage in the whole project. In addition, the structural form of LNG storage tanks and scientific and technological entrepreneurship are also key points concerned by domestic and foreign 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 use conditions. Therefore, the shaping and quality of the corrugated sheets are particularly important, which makes the process requirements for the production and manufacturing of corrugated sheets higher. According to the existing method for manufacturing corrugated sheets, the corrugations are formed by simple stamping and bending of the molds, for the corrugated sheet thus manufactured, the uniformity, fluidity and strength of the material at the formed corrugations, especially at the intersection portion of the transverse and longitudinal corrugations, must be improved.

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

[0005] The object of the present invention is to provide a treatment system which comprises three treatment devices. According to the present invention, the form The structural stability of the intersection portion of the transverse and longitudinal corrugations of the profiled corrugated metal plates is mainly determined by the characteristic patterns processed by the second processing device on the basis of the transverse corrugations of the raw plate. By pre-stamping characteristic patterns on the transverse corrugations of the raw plate, the structural stability and controllability of the intersection portion shaped in later steps can be improved. In addition, the processing of the structural shape of this intersection portion is independent of the processing of the transverse corrugations.Compared with the traditional solution of processing the characteristic structure in the center of the transverse corrugations while processing the transverse corrugations, the present invention is to process the characteristic structure in 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 with using a flat rough plate as the processing basis, the present invention uses the already shaped transverse corrugations as the processing basis, which can make the shaping of the characteristic structure more accurate, is more conducive to the shaping of the final intersection part.

[0006] According to one aspect of the present invention, the invention relates to a metal plate processing system, 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 that gradually decreases toward 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 predetermined second shaping profile having a longitudinal dimension that gradually decreases toward the lower side, a characteristic pattern structure is provided at the transverse center 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 corrugations on the raw plate, so that the intersection portion of the transverse and longitudinal corrugations 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 from the first upper pressing plate downwards, and a first depression portion for receiving 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 from the second upper pressing plate downwardly, a second depression portion is formed on the second lower pressing plate for receiving 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 portions symmetrically arranged in the transverse direction around the center of the lower surface of the characteristic pattern structure and located on the side surface of the second shaping projection;

[0014] a pair of incision portions 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 concavity depth of the pair of incision portions is greater than the concavity depth of the pair of depression portions,

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

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

[0018] a pair of third pressing plates, said pair of third pressing plates being correspondingly located on the upper sides of the pair of sliding plates for compacting the raw slab 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 toward the longitudinal direction, the lower end of the third shaping projection being provided with a predetermined third shaping profile having a transverse dimension that gradually decreases toward the lower side, the predetermined third shaping profile being smooth;

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

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

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

[0023] wherein, said third shaping projection driving portion and the sliding plate driving portion operate in a coordinated manner, such that when the sliding plate driving portion drives the pair of sliding plates to approach each other, the third shaping projection driving portion drives the third shaping projection to move downward.

[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 two first shaping projections extend respectively along the joining 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 toward the first lower pressing plate, the end upper pressing plates and the two first shaping projections are then actuated toward 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 depressions around the bulge, two of which depressions are symmetrical in the longitudinal direction with respect to the bulge, and two other depressions 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 transverse downward direction, wherein:

[0027] the driving part of the sliding plate is a driving block, the upper part of the driving block is fixed on the main horizontal plate, and a force receiving part corresponding to the driving block is arranged 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 bear against the upper side of the pair of sliding plates.

[0030] According to one embodiment, the pair of third pressing plates are 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 driving mechanism.

[0031] According to one embodiment, the drive mechanism further comprises a pair of middle 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 middle horizontal plates, the pair of middle horizontal plates is fixed in the horizontal direction relative to the pair of third pressing plates, the two middle 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 provided at both 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 during the entire treatment process, and sliders 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 bears against the first interlocking portion, and the other end of said spring element bears against the second interlocking portion, the first interlocking portion is fixed relative to the middle horizontal plates, the second nesting part is fixed relative to the main horizontal plate, and an opening is formed on the middle horizontal plates to receive the second nesting part which slides therein, said spring member 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 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 driving parts of the sliding plate, when the driving mechanism moves downward, the stops are in contact with the transverse outer surface of the driving parts of the corresponding 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 corrugations shaped on the raw plate, the two groups of projections are arranged longitudinally, and a characteristic structure corresponding to the characteristic patterns on the transverse corrugations is arranged at the adjacent position of 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 portions 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 downward 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 related to the predetermined shaping profile of the intersection portion of the transverse and longitudinal corrugations.

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

[0041] For a better understanding of the above-described and other objects, features, advantages and functions of the present invention, please refer to the preferred embodiments illustrated in the accompanying figures. Like reference numerals in the figures refer to like 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 indicated 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.l];

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

[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 some vision;

[0049] [Fig.7B] is a partial schematic diagram of the characteristic pattern structure of the upper mold in [Fig.5], with an alternative 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 sliding plate driving portion and the force receiving portion of the third processing device in [Fig.8].

[0058] Reference numbers in the attached figures:

[0059] First processing device 100

[0060] First upper mold 110

[0061] First lower mold 120

[0062] First upper pressing plate 130

[0063] First middle upper 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 processing 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] Structure of characteristic patterns 260

[0075] Lower surface center 261

[0076] Incision part 262

[0077] Depression part 263

[0078] Hollow 264

[0079] Second part of depression 270

[0080] Corresponding characteristics 281

[0081] Third processing device 500

[0082] Sliding plate 50

[0083] Third lower mold 53

[0084] Stop 54

[0085] First slide 55

[0086] Transverse wavy depression portion 56

[0087] Longitudinal corrugated depression portion 57

[0088] Guide rail grooves 58

[0089] Third pressing plate 60

[0090] Second nesting part 61

[0091] First nesting part 62

[0092] Rail support 63

[0093] Rail 631

[0094] Main horizontal plate 71

[0095] Vertical plate 72

[0096] Middle horizontal plate 73

[0097] Nitrogen gas spring 74

[0098] Projection 76

[0099] Drive block 77

[0100] Inclined face 771

[0101] Second grout bucket 7 8

[0102] Element of res sort 79

[0103] Third shaping projection 81 Specific embodiments

[0104] Specific embodiments of the present invention are presented in detail below with reference to the accompanying figures. The description below relates only to the preferred embodiments of the present invention. Those skilled in the art can design 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 processing without cutting of the metal plate, said metal plate is the corrugated plate, 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. [Fig.l] to 14 show schematic diagrams of a processing device according to some preferred embodiments of the present invention;

[0106] First, it should be noted that the terms direction and position mentioned in the present invention are for illustrative rather than limiting purposes only. The positions of the components should be understood as relative positions rather than absolute positions, and the directions of extension of the components should be understood as relative directions rather than absolute directions. The terms of direction and position related to the processing device can be understood with reference to the positions and directions of various components shown in Figures 1 to 14. For example, the terms such as "upper side", "upwards", "lower side" and "downwards" of various components of various processing devices can be interpreted with reference to the direction in which various processing devices are placed, as shown in the accompanying figures, the "upwards" or "downwards" direction is along the vertical direction indicated by D3; the "transverse direction" and the "longitudinal direction" are two horizontal directions perpendicular to each other, of which the transverse direction is indicated by D2 and the longitudinal direction is 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 in sequence according to the processing order. The raw plate passes through the first processing device 100, the second processing device 200 and the third processing device in sequence until it is finally shaped. 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 process or line. 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 at the lower side of the first upper mold 110, and a first lower pressing plate 140 extending along the horizontal plane is disposed at 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 toward the lower side, the predetermined shaping profile is smooth, without folds, depressions, or protruding structures (especially in the central area), and there is no single central area structure. The first predetermined shaping profile has the same shape in any cross-section delineated in the height direction and the longitudinal direction. The first processing device 100 is configured to form transverse corrugations on the raw plate. Correspondingly, a first depression portion 160 is formed on the upper surface of the first lower mold 120. The shape and dimension of the first depression portion 160 correspond to those of the first shaping projection 150 to allow the raw plate to deform under the action of the first shaping projection 150.Preferably, the first shaping projection 150 is removably installed 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 middle upper pressing plate 131 and end upper pressing plates 132 positioned on both sides of the middle upper pressing plate 131, the two first shaping projections 150 extend respectively along the joining position between the middle 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 middle upper pressing plate 131 is first actuated toward the first lower pressing plate 140, the end upper pressing plates 132 and the two first shaping projections 150 are then actuated toward the first lower pressing plate 140. lower pressing 140.That is, when the first processing device 100 is used to process the raw plate, the middle upper pressing plate 131 of the first upper pressing plate 130 first compresses the raw plate downward to position the raw plate. Then, the end upper pressing plates 132 and the first shaping protrusions 150 fall together and are shaped on 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 processing accuracy, on the other hand, it can ensure the thickness of the middle upper 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 middle upper pressing plate 131 and / or the end upper pressing plates 132, the spring drives the middle upper pressing plate 131 and / or the end upper pressing plates 132 to move downward.

[0111] Referring 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 provided on the lower surface of the second upper pressing plate 230. The lower end of the second shaping projection 250 is provided with a predetermined second shaping profile that gradually decreases toward the lower side, the second shaping projection 250 has a characteristic pattern structure 260 at its transverse center position, the characteristic pattern structure 260 is configured to shape characteristic patterns on the transverse undulations of the raw plate. The shape and size of the second shaping projection 250, except for 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 patterns 260. Figs. 7A to 7C show different views of the characteristic pattern structure 260, in order to display the characteristic pattern structure 260 more clearly, [Fig. 7C] is a reversed view with respect to Figs. 4 to 7A. Specifically, a bulge is formed in the center of the lower surface 261 of the characteristic pattern structure 260, the lower surface of the characteristic pattern structure is provided with four depressions 264 around the bulge, of which two depressions 264 are symmetrical in the longitudinal direction with respect to the bulge, and two other depressions 264 are symmetrical in the transverse direction with respect to the bulge. Preferably, the projected area of ​​the two symmetrical depressions 264 in the longitudinal direction is larger than the projected area of ​​the two symmetrical depressions 264 in the transverse direction.

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

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

[0116] It should be noted that the characteristic patterns at the center position of the transverse corrugations shaped by the second processing device 200 are not completely equivalent to the processing characteristics in the intersection area of ​​the finally shaped corrugated plates. The characteristic patterns shaped by the second processing device 200 can be regarded as the initial profile of the characteristic patterns on the finally shaped intersection portion. When processing the raw plate by the third processing device, the deformation direction at the intersection position of the transverse and longitudinal corrugations is guided by the initial profile.For example, the intersecting portion of the finally shaped corrugated plates is also provided with a pointed protrusion corresponding to the incision portion 262, but the size of the pointed protrusion is approximately the same as that of the incision portion 262, that is, the shaping of the pointed protrusion has been completed in the second step of . processing; the intersection portion of the finally shaped corrugated plates is provided with a ridge, the ridge corresponds to the lower central area surrounded by four depressions 264 in FIGS. 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 area. The structural shape of the depression portion 263 facilitates the formation of the interface area between the longitudinal corrugations and the characteristic portion of the corrugated plate corresponding to the depression portion 263 when shaping the longitudinal corrugations; the small depressions shaped by the second processing device 200 are transformed into ridges after processing by the third processing device 500; the small protrusions shaped by the second processing device 200 are transformed into sharp protrusions after processing by the third processing device 500.7A to 7C show that the structure of the characteristic patterns is particularly advantageous for improving the shaping stability and controllability of the finally shaped corrugated plate. The second processing device 200 is installed independently of the first processing device 100 and the third processing device 500 to shape characteristic patterns, which is particularly advantageous for meeting the shaping requirements of double transverse corrugations. If the second processing device 200 is integrated with the first processing device 100 or the third processing device 500, asymmetric deformation will occur at the intersection portion of the corrugated plates having double transverse corrugations.

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

[0118] Referring to Figures 8 to 14, the third processing device 500 of the present invention also has some preferred arrangements over conventional processing devices. First, referring 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 driving mechanism.Among these, 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 correspondingly located 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 is provided with a predetermined third shaping profile having a transverse dimension that gradually decreases toward the lower side. The drive mechanism comprises the driving portion of the sliding plate in contact with the pair of sliding plates 50, and the driving portion of the third shaping projection connected to the third shaping projection 81.

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

[0120] More specifically, when the drive mechanism drives the third shaping projection 81 to move downward at a constant speed, the inclined face of the drive block 77 contacts 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 may be an uneven inclined surface, then the movement of the drive block 77 at a constant speed downward may be converted into a transverse movement of the sliding plate 50 at a variable speed. Said lower mold 53 also includes stops 54 positioned at the transverse outer side of the two rows of drive blocks 77, when the drive mechanism moves downward, the stops 54 contact 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 slider 55 or roller is installed on the surface in contact between each stop 54 and the drive block 77. The driving effect of the two rows of driving blocks 77 can reduce the thinning rate of the raw plate.

[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 approach each other in the transverse direction under the action of the driving mechanism. Referring to [Fig. 12] and 13, guide rail grooves extending in the transverse direction are provided at both 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 holder 63, through the cooperation 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 enable 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 comprises a pair of middle horizontal 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 middle horizontal plates 73, the pair of middle horizontal plates 73 are fixed in the horizontal direction relative to the pair of third pressing plates 60, and the pair of middle horizontal plates 73 are fixed in the vertical direction relative to the main horizontal plate 71. The middle horizontal plate 73 bears against the lower surface of the main horizontal plate 71.That is, in the vertical direction: the middle horizontal plate 73 continuously presses 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 together with the third pressing plate 60 in the transverse direction relative to the main horizontal plate 71.In order to facilitate the sliding of the middle horizontal plate 73 relative to the main horizontal plate 71 while being in contact with the lower surface of the main horizontal plate 71, a second slider 78 is disposed between the middle horizontal plate 73 and the main horizontal plate 71.

[0123] Referring 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 moving away from each other to restore their original position at the end of processing, in this case, the spring element 79 may be a delay spring. Optionally, the spring element 79 may also serve as a driving element to drive the middle horizontal plate 73 and the third pressing plate 60.In this case, one end of the spring member 79 bears against the first engagement portion 62, and the other end of the spring member 79 bears against the second engagement portion 61, the first engagement portion 62 is fixed relative to the middle horizontal plate 73, the second engagement portion 61 is fixed relative to the main horizontal plate 71 (e.g., the second engagement portion 61 is fixed on the vertical plate 72), and an opening is formed on the middle horizontal plate 73 to receive the second engagement portion 61 which slides therein. The spring member 79 can still be a delay spring, after the third pressing plate 60 falls to the joint position with the sliding plate 50, the spring member 79 starts to apply force to the first nesting part 62, thereby pushing the pair of third pressing plates 60 toward the middle.Alternatively, the first nesting part 62 and the second nesting part 61 may be installed in the reverse direction, and the spring member 79 does not serve as a member for making the pair of third pressing plates 60 move toward each other, but is a member for making the pair of third pressing plates 60 move away from each other at the end of processing, as previously described.

[0124] It can be understood that the driving portion of the third shaping projection and the driving portion of the sliding plate are fixed relative to each other, the driving portion of the third shaping projection and the third shaping projection 81 are fixedly connected, and the driving portion 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 driving portion of the third shaping projection and the driving portion of the sliding plate are the same, the speed and direction of movement of the third shaping projection 81 and the sliding plate 50 are different.However, under the action of the driving 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 driving mechanism (e.g., the main horizontal plate) moves toward the . bottom is called the second predetermined speed. The pair of third pressing plates 60 can also approach 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 portion of the transverse and longitudinal corrugations.

[0125] In addition to the spring member 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, i.e., 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, the 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 joining state.Alternatively, the drive mechanism includes a pressing plate driving portion that imposes a force on the pair of third pressing plates and is different from the spring member 79, and the pressing plate driving portion is independent of or formed as a single body with the sliding plate driving portion. When the pressing plate driving portion and the sliding plate driving portion are formed as a single body, an inclined face may also be provided at the bottom of the drive block, where the inclined face at the bottom imposes a force on the slider, the inclined face on its inner lateral side imposes a force on the third pressing 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 bears against the upper side of the pair of sliding plates 50.

[0127] The third upper mold may include a nitrogen gas spring 74 disposed between the middle horizontal plate 73 and the pair of third pressing plates 60, the nitrogen gas spring 74 is configured such that it can be locked at its maximum extension length to allow the pair of third pressing plates to pressing 60 to move 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 upward. In the first stage of the upward movement of the drive mechanism, the main horizontal plate 71 and the middle horizontal plate 73 move upward relative to the third pressing plate 60, and the nitrogen gas spring 74 is located 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 upward with the main horizontal plate 71 and the middle horizontal plate 73, the third pressing plate 60 moves upward 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 deposited between the third pressing plate 60 and the sliding plate 50, the drive mechanism can be operated to move downward. 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 operated by the drive mechanism to move downward with the drive mechanism.When the third pressing plate 60 presses against the upper surface of the sliding plate 50, the downward movement process of the driving mechanism (can be understood as the downward movement process of the main horizontal plate 71) enters the second stage, in which the third pressing plate 60 no longer moves vertically, the driving 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 completed when the nitrogen gas spring 74 reaches its minimum extension length (i.e., when it is compressed to the maximum). It should be noted that the nitrogen gas spring 74 is installed in an upside-down manner, in the installed state, the high side of the nitrogen gas spring 74 is arranged at the bottom, its low side is arranged 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 pressing plates 60 move under the action of the driving mechanism while shaping the raw plate. That is, the function of the first stage of the downward movement of the driving mechanism is to drive the third pressing plate 60 downward; the function of the second stage of the downward movement of the driving mechanism is to drive the third shaping projection 81, the pair of sliding plates 50 and the pair of third pressing plates 60 downward by making them approach each other in the transverse direction toward the middle.

[0131] The lower surface of the third pressing plate 60 is provided with the projections 76 corresponding to the transverse undulations on the raw 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 at the adjacent position of the projections 76 to the third shaping projection 81, the characteristic structure includes a positioning projection, the positioning projection is used to penetrate deeply into the depression portions on the corresponding characteristic patterns of the raw plate, such as the formed depression portions corresponding to the incision portions in FIGS. 7A to 7C. The cooperation of the positioning projection and the depression portions facilitates the positioning and fixing of the raw plate and prevents the displacement thereof during processing.In addition, in the first step of the processing process, the corresponding depression portion on the raw plate can be positioned firstly via the positioning projection, and then in the second step, the third shaping projection 81, the pair of sliding plates 50 and the pair of third pressing plates 60 are driven downward to approach toward the middle in the transverse direction, this solution can reduce the thinning rate of the raw plate.

[0132] Correspondingly, the third lower mold 53 has depression portions with transverse corrugations 56 and depression portions with longitudinal corrugations 57. According to the present invention, the already shaped bottom with longitudinal corrugations does not have a shaping base that can move upward, but is provided with a depression portion with longitudinal corrugations 57 that is fixed in the vertical direction to increase some shaping flexibility, the raw plate after passing the first two processes is compacted by the third shaping projection 81 and fitted to the depression portion 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 being specifically defined for the predetermined shaping profile of the intersection portion of the transverse and longitudinal corrugations.

[0134] In addition to the above embodiments, the drive mechanism may 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 may 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 may comprise a connecting mechanism which is not fixedly connected. For example, the drive mechanism may comprise the first driving portion, the second driving portion and the third driving portion.The first drive portion, the second drive portion, and the third drive portion may have different movement directions and / or speeds. The first drive portion may be connected to the sliding plate, the second drive portion may be connected to the third shaping projection, the third drive portion may be connected to the third pressing plate; the drive mechanism may include a control module, the control module may be programmed to drive the sliding plates to move toward each other at the first predetermined speed, driving the third shaping projection to move downward at the second predetermined speed, and the third pressing plates to move toward each other at the third predetermined speed.

[0135] The third processing device 500 of the present invention not only ensures that the third pressing plate 60 can move vertically relative to the main horizontal plate 71, but also realizes that a pair of third pressing plates 60 can compress toward the third shaping projection 81 in the transverse direction, such an arrangement enables the third pressing plates 60 to perform two functions at the same time: positioning and shaping 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 may be activated first to move upward to lift the third pressing plate 60.Specifically, in 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 upward 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 drives the third pressing plate 60 to move upward, and the pressing plate 60 moves upward away from the sliding plate 50.In addition, in this case, it is also necessary to make the pair of sliding plates 50 move away from each other in the transverse direction, and to make the pair of third pressing plates 60 move 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 exactly positioned at the depression portion and compressed by the corresponding projection 76. The drive mechanism is then operated to move downward. In the first step of the downward movement of the drive mechanism, the nitrogen gas spring 74 is at its maximum extension length, the third pressing plate 60 moves downward with the main horizontal plate 71 and the middle horizontal plate 73 until the third pressing plate 60 presses against the upper side of the sliding plate 50. In this case, the flat portion of the raw plate and the pair of depression portions on the transverse corrugations are compressed by the third pressing plate 60 and the sliding plate 50.

[0139] Then, the driving mechanism continues to move downward, and this step constitutes the second step of the downward movement of the driving mechanism. In the second step of the downward movement of the driving mechanism, the nitrogen gas spring 74 is compressed, and the driving mechanism can no longer operate the third pressing plate 60 downward, the second step of the movement of the driving mechanism (i.e., the second step of the downward movement of the main horizontal plate 71) is mainly to operate the third shaping projection 81 downward, making the sliding plate 50 and the third pressing plate 60 move in the transverse direction.

[0140] In the second step of operating the drive mechanism, the third shaping projection 81 fixedly installed on the lower end of the vertical plate 72 of the drive mechanism moves downward at the second predetermined speed with the drive mechanism, however, the drive block 77 of the drive mechanism contacts the force receiving portion 51 of the sliding plate 50 by pushing the same, when the drive mechanism moves downward at the second predetermined speed, the pair of sliding plates 50 approach each other at the first predetermined speed, however, the delay spring member 79 starts 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 driven 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 specially set for the predetermined shaping profile of the intersecting portion. Such a specific arrangement takes into account concave and convex shapes of the intersecting portion, setting a higher speed during the corresponding period when abrupt deformation is required, and setting a lower speed during the corresponding period when gentle deformation is required.

[0141] In the second step of operating 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 portions of the raw plate moving in the different directions is set so that the shaping process is particularly suitable for corrugated plates having the predetermined corrugation shape.In addition, the characteristic pattern structure processed by the second processing device can form predetermined weak points on the transverse corrugations of the raw plate, so that during the processing of the third processing device, the intersection portion of the longitudinal and transverse corrugations can be deformed and shaped into a predetermined shape.

[0142] At the end of the second step of actuation of the drive mechanism, the pair of sliding plates 50 approach each other as far as possible, the pair of third pressing plates 60 also approach 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 speeds or inconstant speeds. For example, in the first stage of the downward movement of the drive mechanism, the entire main horizontal plate 71 may move downward 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 moving speed, being the moving speed of the driven shaping projection 81 (the second predetermined speed) may also be variable, for example, a gradual deceleration speed change, or according to the other embodiments, the control system that controls the downward movement of the drive mechanism may be preprogrammed and execute such an operating logic: in the second stage,the acting force applied to the driving mechanism is gradually increased, this increased acting force can balance with the reaction force of the nitrogen gas spring 74, so that the driving mechanism moves downward at a constant speed during the second stage, that is, the moving speed of the shaping projection 81 driven in this case (the second predetermined speed) can still be approximately constant. Whether the downward moving speed of the shaping projection 81 in the second stage is constant or not, the moving speed of the sliders 50 can be linearly related to the second predetermined speed, for example, when the second predetermined speed is not constant, the first predetermined speed and the third predetermined speed 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 force application face of the drive block 77 may be set as an irregular inclined surface, so that the first predetermined speed and the third predetermined speed may be non-linearly 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 may be inconstant speeds.

[0144] It should be noted that the "speed" referred to in the present invention should be understood as the rate value of speed, for example, the "first predetermined speed is not equal to the second predetermined speed" referred to in the present invention means that at any time node, the rate value of the first 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 subject of the present invention is uniquely configured for the predetermined shaping corrugations, specifically so that the operating speeds of various portions of the raw plate that move in the different directions and compress the raw plate are specifically linked, which makes the shaping process particularly suitable for corrugated plates having the predetermined corrugated shape. The corrugated plates manufactured by such a method will have the best uniformity, smoothness and material strength at the formed corrugations, especially at the intersection portion of the transverse and longitudinal corrugations.

[0146] It should be noted that the first processing device and the second processing device of the present invention are respectively provided with two parallel shaping projections, and the third processing device is provided with two projections accordingly, the corrugated plate processed by such a processing system has two transverse undulations and thus two intersecting portions. Such corrugated plates have more uses than traditional corrugated plates, for example, the corrugated plates 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 driving portion of the two-row sliders of the third processing device of the present invention is particularly suitable for processing the corrugated plate having a long longitudinal length.The driving part of the double-row sliders can apply force evenly, so that the sliders 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 the purpose of description for those of ordinary skill in the art. It is not intended that the invention be exclusive or limited to any single published embodiment. As described above, those skilled in the art in the above fields will be able to devise numerous alternatives and modifications of the present invention. Thus, while certain alternative embodiments have been specifically described above, above, those skilled in the art can relatively easily design or develop other embodiments. The present invention is intended to include 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. Claims A 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 toward 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 predetermined second shaping profile having a longitudinal dimension that gradually decreases toward the lower side, a characteristic pattern structure (260) is provided at the transverse center 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 corrugations on the raw plate, so that the intersection portion of the transverse and longitudinal corrugations 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) protrudes from the first upper pressing plate downwards, and a first shaping portion depression (160) for receiving 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) protrudes from the second upper pressing plate downwardly, a second depression portion (270) is formed on the second lower pressing plate for receiving the second shaping projection, features (281) corresponding to the characteristic pattern structure are formed on the second depression portion,said characteristic pattern structure (260) comprises: a pair of depression portions (263) arranged symmetrically in the transverse direction around the center of the lower surface (261) of the characteristic pattern structure and located on the side surface of the second shaping projection;, a pair of incision portions (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 concavity depth of the pair of incision portions (262) is greater than the concavity depth of the pair of depression portions (263); characterized in that the third processing device (500) comprises: a pair of sliding plates (50), said sliding plates (50) being capable of moving 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 correspondingly located on the upper sides of the pair of sliding plates (50) for compacting the raw slab 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 toward 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 driving parts (77), the two rows of sliding plate driving parts being respectively positioned on the transverse outer side of the pair of third pressing plates (60), and there are multiple sliding plate driving parts in each row; and a third shaping projection driving part connected to the third shaping projection (81), wherein, said third shaping projection driving part and the sliding plate driving part (77) operate in a coordinated manner, so that when the sliding plate driving part drives the pair of sliding plates (50) to approach each other, the third shaping projection driving part drives the third shaping projection (81) to move downward. 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 middle upper pressing plate (131) and end upper pressing plates (132) positioned on both sides of the middle upper pressing plate, the two first shaping projections (150) extend respectively along the joining position between the middle upper pressing plate (131) and the end upper pressing plates (132), moreover, the first upper pressing plate (130) is configured such that during the shaping process, the middle 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 projections (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 is provided of four hollows (264) around the bulge, two of which 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. A processing system according to claim 1, characterized in that said driving 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) downward, wherein: the sliding plate driving portion is a driving block (77), the upper portion of the driving block is fixed on the main horizontal plate (71), and a force receiving portion (51) corresponding to the driving block is provided on the transverse outer side of the sliding plate (50), the driving block and the force receiving portion 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) bear against the upper side of the pair of sliding plates (50).

6. A processing system according to claim 4, characterized in that the pair of third pressing plates (60) are 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 driving mechanism.

7. A processing system according to claim 6, characterized in that the drive mechanism further comprises a pair of middle horizontal plates (73) located between the pair of third pressing plates (60) and the main horizontal plate (71), the pair of third pressing plates is connected to the plate main horizontal plate (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. A processing system according to claim 7, characterized in that, guide rail grooves extending in the transverse direction are provided at both longitudinal ends of the pair of middle horizontal plates (73), and the main horizontal plate (71) is provided with a guide rail (631) accommodated in the guide rail grooves, and by 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. A 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) during the entire processing process, and sliders (78) are arranged between the middle horizontal plates and the main horizontal plate.

10. A processing system according to claim 7, characterized in that, the drive mechanism comprises a spring member (79) extending in the transverse direction between the main horizontal plate (71) and the middle horizontal plates (73), one end of said spring member bears against the first engagement portion (62), and the other end of said spring member bears against the second engagement portion (61), the first engagement portion (62) is fixed relative to the middle horizontal plates (73), the second engagement portion (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 engagement portion which slides therein, said spring member (79) is configured to actuate the third pressing plate (60) in the transverse direction.

11. A treatment system according to claim 7, characterized in that a nitrogen gas spring (74) is provided between the horizontal plate middle (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. A 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 driving parts of the sliding plate, when the driving mechanism moves downward, the stops (54) are in contact with the transverse outer surface of the driving parts of the corresponding sliding plate.

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

14. A 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 corrugations shaped 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 corrugations is arranged at the adjacent position of the projections to the third shaping projection (81), said characteristic structure comprising a positioning projection, the positioning projection is used for penetrating deeply into the depression portions 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. moves downward 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 related to the predetermined shaping profile of the intersection portion of the transverse and longitudinal corrugations. A processing system according to claim 6, characterized in that the pair of third pressing plates are driven by the pair of sliding plates.

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