Processing device for metal corrugated plates

Abstract

The present invention provides a processing device for a metal corrugated plate, comprising a first mold, a pressure plate and a second mold. The first mold includes a shaping recess located on an integral member. The pressure plate is removably attached to the first mold, restricting the metal plate from moving relative to the base member in a first direction perpendicular to it and allowing the metal plate to move relative to the base member within its own plane. The first mold and the second mold are respectively arranged on both sides of the metal plate. The second mold includes a shaping protrusion having a contour shape matching the shaping recess. The second mold is movable relative to the first mold in the first direction between a processing position where the metal plate is pressed into the shaping recess to form corrugations and a reset position where the shaping protrusion is removed from the shaping recess. According to the solution of the present invention, most of the movable parts and corresponding drive mechanisms of the processing device are eliminated, which can reduce the failure rate of the processing device while ensuring the thinning rate, and is beneficial to reducing costs and maintenance difficulties.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate processing, and in particular to a processing device for a metal corrugated plate of a liquefied gas storage tank. Background Art

[0002] Liquefied natural gas (LNG) has been the preferred energy source for replacing oil with its advantages of being green, environmentally friendly and efficient, and has become one of the fastest growing energy industries in the world. With the rapid development of my country's economy and the continuous improvement of environmental governance requirements, the application and development of LNG has received more and more attention from all parties, thus triggering a rapid growth in the demand for clean energy in society. One of the key directions for the development of clean energy in China in the future is LNG.

[0003] LNG usually needs to rely on transportation equipment, such as ships and other marine equipment for transportation. The main components of an LNG receiving station are dock unloading, LNG storage, process processing and external transmission. Among them, the LNG storage tanks that undertake the storage task have the longest construction period, the most advanced technology, and the most difficulties in the construction process. They have always been managed as the key path of the entire project. In addition, the structural form and technological entrepreneurship of LNG storage tanks are also the focus of attention of domestic and international peers.

[0004] In LNG storage tanks, the corrugated plate used to form the sealing layer needs to be able to maintain good sealing and stability under various conditions of use. Therefore, the configuration and quality of the corrugated plate are particularly important, and the requirements for the process of manufacturing the corrugated plate are also high. In the existing process for manufacturing corrugated plates, the corrugations are made by a simple bending and stamping die. The material uniformity, smoothness and strength of the corrugated plates made in this way need to be improved at the corrugations, especially at the intersection of the horizontal and vertical corrugations.

[0005] In addition, the current processing device has many parts, and the parts need to be linked to synchronize during the processing, which makes the operation complicated and prone to failure. If any two parts fail to link or synchronize, processing defects are likely to occur, resulting in waste of blanks, so the processing yield needs to be further improved. As for the processing device itself, the large number of parts also makes it complex and inefficient in production assembly and later maintenance.

[0006] Therefore, it is necessary to provide a processing device to at least partially solve the above problems. Summary of the invention

[0007] To at least partially achieve the above objectives, the present invention provides a processing device for a metal corrugated plate, the processing device comprising:

[0008] A first die, the first die including a base member configured as a one-piece member and provided with a shaping recess;

[0009] A blank holder plate removably attached to the first die to clamp a metal plate to be processed at a position at least partially covering the shaping recess between the first die and the blank holder plate, wherein the blank holder plate restricts the metal plate from moving relative to the base member in a first direction perpendicular to the metal plate and allows the metal plate to move relative to the base member in a plane perpendicular to the first direction; and

[0010] A second die, the first die and the second die being respectively disposed on two sides of the metal plate, the second die including a shaping protrusion having a contour shape matching that of the shaping recess, the second die being movable relative to the base member in a first direction between a processing position and a reset position, at the processing position, the shaping protrusion can press at least a part of the metal plate into the shaping recess to form a corrugation, and at the reset position, the shaping protrusion moves out of the shaping recess.

[0011] In some embodiments, at least one of the surface of the metal plate, the surface of the base member in contact with the metal plate, and the surface of the blank holder plate in contact with the metal plate has an anti-friction arrangement.

[0012] In some embodiments, the anti-friction arrangement includes a film attached to the surface, and the friction coefficient of the film is less than the friction coefficient of at least one of the metal plate, the base member, and the blank holder plate.

[0013] In some embodiments, the metal plate has a prefabricated first corrugation extending in a first corrugation direction, and the processing device is used to process a second corrugation extending in a second corrugation direction perpendicular to the first corrugation direction, wherein the first die is provided with an avoidance recess, and in a state where the metal plate is clamped between the first die and the blank holder plate, the first corrugation is received in the avoidance recess.

[0014] In some embodiments, the blank holder plate is provided with a fixing protrusion, and in a state where the metal plate is clamped between the first die and the blank holder plate, the fixing protrusion extends into the first corrugation and clamps and fixes the first corrugation along the first direction with the avoidance recess.

[0015] In some embodiments, the first mold further includes an auxiliary shaping member, which is disposed on a side of the first mold facing away from the second mold, and is provided with an auxiliary shaping protrusion at an end facing the metal plate for processing a knot feature at the intersection of the first corrugation and the second corrugation, and the auxiliary shaping member is movably disposed between a second processing position where the auxiliary shaping protrusion squeezes the metal plate and a second reset position where the auxiliary shaping protrusion is away from the metal plate.

[0016] In some embodiments, the auxiliary shaping components include two components and are arranged on both sides of the shaping recess along the first corrugation direction.

[0017] In some embodiments, the two auxiliary shaping components are separated by a first distance along the first corrugation direction when located at the second reset position and are separated by a second distance along the first corrugation direction when located at the second processing position, and the first distance is greater than the second distance.

[0018] In some embodiments, the first mold includes an auxiliary shaping frame and a first guiding mechanism, the auxiliary shaping member is mounted on the auxiliary shaping frame, and the first guiding mechanism is configured to guide the auxiliary shaping member to move along the first corrugation direction.

[0019] In some embodiments, the first guiding mechanism includes:

[0020] a combination of mutually cooperating guide pins and guide holes, wherein the guide pins extend parallel to the first corrugation direction, and / or

[0021] A combination of a guide slide block and a guide slot that cooperate with each other, wherein the guide slot extends in parallel to the first corrugation direction.

[0022] In some embodiments, the first guide mechanism includes a guide pin installed on the auxiliary shaping frame, the auxiliary shaping component is provided with a guide hole and is movably installed on the guide pin through the guide hole, and the auxiliary shaping component is also provided with an oil dripping hole passing through the guide hole.

[0023] In some embodiments, the auxiliary shaping member is provided with at least one of a cam surface and a traction device, and the distance between the two auxiliary shaping members along the first corrugation direction is automatically adjusted by the cam surface and / or the traction device as the auxiliary shaping member moves between the second reset position and the second processing position.

[0024] In some embodiments, the first mold is provided with a through cavity that penetrates to the shaping recess, and at least a part of the stroke of the auxiliary shaping member moving from the second reset position to the second processing position is located in the through cavity. Wherein, the auxiliary shaping member is provided with a first cam surface, and a second cam surface is provided in the through cavity. During the process of the auxiliary shaping member moving from the second reset position to the second processing position, the first cam surface cooperates with the second cam surface to automatically adjust the distance between the two auxiliary shaping members in the first corrugation direction to the second distance.

[0025] In some embodiments, the traction device includes at least one of an elastic member, a hydraulic cylinder, a pneumatic device, an electric motor, and a ball screw.

[0026] In some embodiments, the processing device includes an additional guiding mechanism configured to guide the auxiliary shaping member to move relative to the base member in the first direction.

[0027] In some embodiments, the processing device includes an additional guiding mechanism configured to guide the second mold to move relative to the first mold in the first direction.

[0028] In some embodiments, the additional guiding mechanism includes:

[0029] A combination of a guiding pin and a guiding hole that cooperate with each other, wherein the guiding pin extends in a direction parallel to the first direction, and / or

[0030] A combination of a guiding slider and a guiding chute that cooperate with each other, wherein the guiding chute extends in a direction parallel to the first direction.

[0031] In some embodiments, the auxiliary shaping protrusion has a tapered profile towards the metal plate in a cross-section perpendicular to the second corrugation direction, and the end of the auxiliary shaping protrusion is configured as an arc surface.

[0032] In some embodiments, the auxiliary shaping protrusion has a uniform cross-sectional shape along the second corrugation direction, or

[0033] The auxiliary shaping protrusion is provided with a notch portion that spans the peak of the first corrugation at a position corresponding to the peak of the first corrugation.

[0034] In some embodiments, a tongue and an elastic member are provided in the longitudinal middle of the shaping protrusion, and the tongue elastically protrudes outward relative to the rest of the shaping protrusion in the first direction under the action of the elastic member.

[0035] According to the solution of the present invention, the structure of the processing device is simpler. In particular, most of the movable parts and the corresponding driving or linkage mechanisms are eliminated. Therefore, the possibility that the movable parts of the processing device are difficult to move in place due to failures can be greatly reduced while ensuring that the thinning rate of the metal plate is within the allowable range, and both the yield and reliability of the processing operation can be improved. Such a setting can also reduce the production cost of the processing device itself and reduce the maintenance difficulty during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To better understand the above and other objects, features, advantages and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same components. Those skilled in the art should understand that the drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no restrictive effect on the scope of the present invention. The components in the drawings are not drawn to scale.

[0037] Figure 1 A perspective view of a processing device according to some preferred embodiments of the present invention;

[0038] Figure 2 For Figure 1 a perspective view of the first die of the processing device in

[0039] Figure 3 For Figure 1 a perspective view of the pressure plate of the processing device in

[0040] Figure 4 For Figure 1 a perspective view of the second die of the processing device in

[0041] Figure 5 And Figure 6 respectively are Figure 1 perspective views of different angles of the auxiliary processing member of the processing device in

[0042] Figure 7 For Figure 2 a perspective view of the limit frame of the first die in

[0043] Figure 8 An alternative configuration of the auxiliary processing member of the processing device according to the present invention;

[0044] Figure 9 A schematic diagram of processing a metal corrugated plate using the processing device according to the present invention;

[0045] Figures 10A - 10C A schematic diagram showing the change in the distance between two auxiliary processing members with the stroke during the process of processing a metal corrugated plate; and

[0046] Figure 11 Schematic diagram of a corrugated metal sheet processed by the processing device of the present invention.

[0047] Description of reference numerals:

[0048] 1. Processing device;

[0049] 10. First mold;

[0050] 11. Base member;

[0051] 111. Shaping recess;

[0052] 112. Avoidance recess;

[0053] 114. Through cavity;

[0054] 115. First guiding hole;

[0055] 116. Fixing hole;

[0056] 12. Limit frame;

[0057] 121. Second guiding half groove;

[0058] 122. Second wedge block;

[0059] 123. Second cam surface;

[0060] 20. Pressure plate;

[0061] 21. Fixing convex portion;

[0062] 22. Through hole;

[0063] 30. Second mold;

[0064] 31. Shaping convex portion;

[0065] 32. Guide post;

[0066] 33. Second mold body;

[0067] 40. Auxiliary shaping member;

[0068] 41. Auxiliary shaping convex portion;

[0069] 42. Auxiliary shaping frame;

[0070] 421. First guiding half groove;

[0071] 43. First guiding mechanism;

[0072] 44. Second guiding hole;

[0073] 45. First wedge block;

[0074] 451. First cam surface;

[0075] 46. Oil dripping hole;

[0076] 47. Guide pin;

[0077] 50. Alternative auxiliary shaping member;

[0078] 51. Alternative auxiliary shaping convex part;

[0079] 52. Notch part;

[0080] 200. Corrugated plate;

[0081] 201. Metal plate body;

[0082] 202. First corrugation;

[0083] 203. Second corrugation;

[0084] 204. Intersection;

[0085] D1. First direction;

[0086] D2. First corrugation direction;

[0087] D3. Second corrugation direction;

[0088] L1. First distance;

[0089] L2. Second distance. Detailed implementation mode

[0090] Now referring to the accompanying drawings, the detailed implementation mode of the present invention will be described in detail. What is described here is only the preferred implementation mode of the present invention. Those skilled in the art can think of other ways to implement the present invention on the basis of the preferred implementation mode, and the other ways also fall within the scope of the present invention.

[0091] The present invention provides a processing device for a metal corrugated plate. More specifically, the processing device is used to process a metal plate to form corrugations. The corrugated plate is suitable for manufacturing storage containers, and the storage containers are particularly liquefied gas storage tanks of offshore engineering equipment (such as ships) or onshore engineering equipment, where the liquefied gas is, for example, liquefied natural gas (LNG), liquid nitrogen, liquid oxygen, liquid hydrogen, and liquid helium, etc. An example of the corrugated plate is Figure 11As shown, the corrugated plate 200 is processed from a flat metal plate, and includes a metal plate body 201, a first corrugation 202, and a second corrugation 203. Among them, the protruding height of the first corrugation 202 relative to the metal plate body 201 is greater than the protruding height of the second corrugation 203 relative to the metal plate body 201, and the extending directions of both the first corrugation 202 and the second corrugation 203 in the plane where the metal plate body 201 is located are substantially perpendicular. Therefore, the first corrugation 202 can also be called a large corrugation, and the second corrugation 203 can also be called a small corrugation. Preferably, a knot feature is also processed at the intersection 204 of the first corrugation 202 and the second corrugation 203 to enhance the structural strength of the intersection 204.

[0092] In some embodiments, the second corrugation 203 (i.e., the small corrugation) of the corrugated plate 200 is formed by the processing device according to the present invention. The first corrugation 202 (i.e., the large corrugation) can be preformed by a pre-process. In some embodiments, both the first corrugation 202 and the second corrugation 203 can be formed by the processing device according to the present invention, for example, using the processing device according to the present invention to form the first corrugation 202 and the second corrugation 203 respectively through two independent processes.

[0093] The following will be combined with Figures 1 to 10C to introduce the preferred embodiments of the processing device.

[0094] First of all, it should be noted that the directional terms and position terms mentioned in the present invention are only exemplary descriptions rather than restrictive descriptions. The position description of the components should be understood as relative positions rather than absolute positions, and the description of the extending direction of the components should be understood as relative directions rather than absolute directions. Among them, the directional terms and position terms related to the processing device can be understood with reference to the characteristics of the corrugated plate 200 as the processing object. For example, the direction perpendicular to the plane where the corrugated plate 200 is located (substantially parallel to the metal plate body 201) is the first direction D1, the extending direction of the first corrugation 202 is the first corrugation direction D2, and the extending direction of the second corrugation 203 is the second corrugation direction D3. The first direction D1, the first corrugation direction D2, and the second corrugation direction D3 are substantially orthogonal to each other.

[0095] As Figures 1 to 4 shown, the processing device 1 includes a first mold 10, a pressure plate 20, and a second mold 30. The first mold 10 is provided with a shaping recess 111, which is generally configured as a through-long groove and has a cross-sectional profile substantially the same as the corrugation to be processed and formed, and is used to receive the plastic deformation part of the metal plate during the processing to form a corrugation. The pressure plate 20 is removably attached to the first mold 10 and is used to clamp the metal plate to be processed between the pressure plate 20 and the first mold 10, so that the metal plate remains fixed relative to the processing device 1 during the processing.

[0096] The second mold 30 is disposed on the side of the metal plate away from the first mold 10. That is, the first mold 10 and the second mold 30 are respectively located on both sides of the metal plate. According to the relative positions during the processing, the first mold 10 can also be referred to as the lower mold, and the second mold 30 can also be referred to as the upper mold. The second mold 30 includes a shaping convex portion 31, which is configured as a continuous protruding portion provided on the second mold body 33 and has a cross-sectional profile substantially the same as that of the corrugation to be processed and formed. Therefore, the shape of the shaping convex portion 31 matches the shape of the shaping concave portion 111. The second mold 30 can move relative to the first mold 10 between a reset position and a processing position along a first direction D1 under the action of a driving mechanism (not shown) and the like. The processing position is as shown in Figure 1 shown. At this position, the shaping convex portion 31 of the second mold 30 can enter the shaping concave portion 111 to form a concave-convex fit. In this way, when the metal plate is fixed to the first mold 10 by the blank holder 20, the portion of the metal plate corresponding to the shaping concave portion 111 is pressed into the shaping concave portion 111 by the shaping convex portion 31, and plastic deformation occurs, thereby forming a predetermined corrugation on the metal plate. The reset position is as shown in Figure 9 shown. At this position, the second mold 30 is away from the first mold 10, and the shaping convex portion 31 is moved out of the shaping concave portion 111, thereby allowing operations such as removing the processed corrugated plate and placing a new metal plate to be processed.

[0097] Preferably, in order to facilitate the positioning between the first mold 10 and the second mold 30 and guide their relative movement along the first direction D1, the processing device is provided with an additional guiding mechanism. Specifically, the first mold 10 is provided with a first guiding hole 115, and the second mold 30 is provided with a guiding post 32. During the movement of the second mold 30 towards the processing position, the guiding post 32 is inserted into the first guiding hole 115 to achieve guiding and positioning. Of course, the guiding post can also be provided on the first mold 10, and the first guiding hole can be provided on the second mold 30, or corresponding guiding posts and first guiding holes can be provided on both of them. In another alternative embodiment, the additional guiding mechanism can also include other feasible guiding forms such as a combination of a guiding slider and a guiding chute.

[0098] Traditional processing devices are usually provided with a plurality of movable parts with cavities, and these movable parts can be moved closer or farther in linkage with the processing operation. When moving closer, the cavities of these movable parts are spliced ​​to form a shaping recess. According to the solution of the present invention, the shaping recess 111 is provided on a one-piece component. For example, the first mold 10 includes a base component 11 constructed as a one-piece component, and the shaping recess 111 is constructed as a groove on the base component 11. Compared with traditional processing devices, the solution of the present invention is obviously simpler. In particular, most of the movable parts and the corresponding driving or linkage mechanisms are eliminated, which can greatly reduce the possibility that the movable parts of the processing device are difficult to move into place due to failures, and the yield and reliability of the processing operation can be improved. Such a setting can also reduce the production cost for the processing device itself and reduce the difficulty of maintenance during use.

[0099] The reason why the traditional processing device is provided with a complex driving or linkage mechanism and forms a shaping concave portion by splicing is to make the metal plate have a roughly uniform thickness and avoid it being excessively thinned at a certain place due to pressure during the corrugation forming process. In contrast, the scheme of the present invention adopts a different setting to achieve this purpose. According to the present invention, the pressing plate 20 is attached to the first mold 10 in a removable manner. In some embodiments, the base member 11 of the first mold 10 is provided with a fixing hole 116, and the pressing plate 20 is provided with a through hole 22. After the pressing plate 20 is installed in place, the fasteners such as bolts and pins can be used to pass through the through hole 22 and connect in the fixing hole 116 to attach the pressing plate 20 to the base member 11. In other words, the pressing plate 20 is also a substantially fixed component during the processing after the metal plate is installed in place. Therefore, the complex driving or linkage mechanism set for the pressing plate in the traditional processing device can be omitted, further simplifying the structure and promoting the realization of the above-mentioned technical effects.

[0100] Among them, the pressing plate 20 limits the metal plate along the first direction D1 to prevent it from moving relative to the first mold 10, but allows the metal plate to move relative to the first mold 10 in a plane perpendicular to the first direction D1. In this way, during the processing, as the metal plate is pressed into the shaping recess 111 by the shaping protrusion 31, the parts of the metal plate located on both sides of the shaping recess 111 are pulled close to each other, thereby avoiding excessive thinning caused by excessive extension of the part of the metal plate pressed into the shaping recess 111. This clamping and fixing effect of the pressing plate 20 on the metal plate can be achieved by adjusting the fastening force of the fastener. In some embodiments, the surfaces that contact each other, such as the surface of the metal plate, the surface of the pressing plate 20, and the surface of the first mold 10, can also be subjected to friction reduction treatment. For example, a coating operation can be performed on at least one surface, and the friction coefficient of the coated film is less than the friction coefficient of at least one of the surfaces. Or lubricating grease can also be applied to these surfaces.

[0101] In some embodiments, the processing device according to the present invention is dedicated to processing a metal plate that has been pre-formed with a first corrugation 202 to form a second corrugation 203. For this purpose, preferably, an avoidance recess 112 is further provided on the base member 11 of the first die 10. The avoidance recess 112 is generally configured as a through-groove perpendicular to the shaping recess 111 and has a cross-sectional profile substantially the same as that of the first corrugation 202. When the metal plate is clamped and fixed between the pressure plate 20 and the first die 10, the first corrugation 202 is received in the avoidance recess 112 to facilitate maintaining the integrity of the already processed first corrugation 202 during the processing and prevent it from being damaged and deformed. Preferably, the pressure plate 20 is provided with a fixing protrusion 21, which is configured as a through-protrusion and has a cross-sectional profile substantially the same as that of the first corrugation 202. Therefore, the shape of the fixing protrusion 21 matches the shape of the avoidance recess 112. When the metal plate is clamped and fixed between the pressure plate 20 and the first die 10, the fixing protrusion 21 extends into the inner side of the first corrugation 202 and cooperates with the avoidance recess 112 to clamp and fix the first corrugation 202 along the first direction D1.

[0102] Reference Figures 5 to 7 , the processing device 1 according to the present invention further includes an auxiliary shaping member 40, which has an auxiliary shaping protrusion 41 for processing a knot feature at the intersection 204 of the first corrugation 202 and the second corrugation 203. The auxiliary shaping member 40 is provided on the side of the first die 10 facing away from the second die 30. For example, the auxiliary shaping member 40 may be located below the first die 10. The base member 11 of the first die 10 is provided with a through cavity 114 that penetrates to the shaping recess 111. It can be understood that since both the first corrugation 202 and the second corrugation 203 protrude from the metal plate body 201 and the protruding height of the first corrugation 202 is greater than the protruding height of the second corrugation 203, the through cavity 114 also penetrates to the avoidance recess 112.

[0103] The auxiliary shaping member 40 can move relative to the first die 10 along the first direction D1 between a second reset position and a second processing position under the action of a driving mechanism (not shown) and the like. The second processing position is as Figure 1 shown. At this position, the auxiliary shaping protrusion 41 of the auxiliary shaping member 40 can enter the through cavity 114 and squeeze the first corrugation 202 at the intersection 204 to form a predetermined knot feature. Preferably, the operation of the auxiliary shaping protrusion 41 squeezing the first corrugation 202 can be synchronized with the operation of the shaping protrusion 31 squeezing the metal plate to form the second corrugation 203. The second reset position is as Figure 9As shown. In this position, the auxiliary shaping member 40 is away from the first mold 10, so as to allow operations such as removing the processed corrugated plate and placing a new metal plate to be processed. Preferably, a limit frame 12 is provided on the lower side of the base member 11 for pre-installing the auxiliary shaping member 40 before the processing operation. The internal space of the limit frame 12 forms a part of the through cavity 114. The limit frame 12 can be a member integrally formed with the base member 11, or it can be made separately and fixedly connected to the base member 11.

[0104] like Figure 5 and Figure 6 As shown, the auxiliary shaping protrusion 41 has a contour shape that tapers toward the metal plate in a cross section perpendicular to the second corrugation direction D3, and its end in contact with the metal plate is configured as an arc surface, which can be extended to the main body of the auxiliary shaping member 40 with a wider cross section by inclined planes or arc surfaces or a combination of the two on both sides. Among them, along the second corrugation direction D3, the auxiliary shaping protrusion 41 has a uniform cross section. Therefore, the auxiliary shaping protrusion 41 squeezes the first corrugation 202 as a whole, forming a notch at the squeezed position. Alternatively, as Figure 8 As shown, the alternative auxiliary shaping protrusion 51 of the alternative auxiliary shaping member 50 according to another embodiment has a notch 52 at a position corresponding to the crest of the first corrugation 202. During extrusion, the notch 52 avoids the crest of the first corrugation 202, and the two end points of the notch 52 squeeze the first corrugation 202 on both sides of the crest, so that two pits are formed on both sides of the crest of the first corrugation 202.

[0105] In addition, in some embodiments, the shaping protrusion 31 of the second mold 30 is provided with a tongue (not shown) at a position corresponding to the intersection 204 of the corrugated plate 200 in the middle along the length direction. The tongue elastically protrudes outward along the first direction D1 relative to other parts of the shaping protrusion 31 under the elastic force of the elastic member. During the processing, the tongue can form a peak structure at the intersection, and the protruding height of the peak structure relative to the metal plate body 201 is greater than the protruding height of the second corrugation 203 and greater than the protruding height of the first corrugation 202. By providing an elastic member, the tongue can always keep in contact with the metal plate to provide an extrusion force, and the extrusion force is substantially equal to the elastic force. This can prevent the tongue from applying excessive force to the metal plate and breaking the metal plate during the formation of the peak structure.

[0106] Preferably, the processing device 1 includes two auxiliary shaping members 40, which are arranged on both sides of the shaping recess 111 along the first corrugation direction D2 to process the first corrugation 202 on both sides of the second corrugation 203. The two auxiliary shaping members 40 are mounted on the auxiliary shaping frame 42 to form an integrated structure for synchronous movement.

[0107] To guide the auxiliary shaping member 40 to move between the second reset position and the second processing position, the processing device is further provided with an additional guiding mechanism. Specifically, as Figures 4 to 7 shown, a first guiding semi-groove 421 is provided on the outer side surface of the auxiliary shaping frame, and a second guiding semi-groove 121 is provided on the inner side surface of the limiting frame 12. Both the first guiding semi-groove 421 and the second guiding semi-groove 121 have an arcuate cross-sectional profile, and when the auxiliary shaping member 40 is installed in the limiting frame 12, the two form a guiding groove. In addition, a guiding pin 47 is inserted into the guiding groove to guide the auxiliary shaping member 40 to move axially along the guiding column. This axial direction is substantially parallel to the first direction D1. Of course, in an alternative embodiment, the additional guiding mechanism may also separately or simultaneously include other feasible specific guiding methods such as a combination of a guiding slide rail and a guiding chute.

[0108] Further preferably, the distance between the two auxiliary shaping members 40 is linked to the position of the auxiliary shaping member 40, that is, the distance between the two auxiliary shaping members 40 is adjustable. Specifically, when the auxiliary shaping member 40 is in the second reset position, the distance between the two auxiliary shaping members 40 is relatively far, and when the auxiliary shaping member 40 is in the second processing position, the distance between the two auxiliary shaping members 40 is relatively close. Preferably, the adjustment of the distance between the auxiliary shaping members 40 is achieved through the first guiding mechanism 43. For example, the first guiding mechanism 43 may include a guiding shaft installed on the auxiliary shaping frame 42. Correspondingly, the auxiliary shaping member 40 is provided with a second guiding hole 44. The guiding shaft extends substantially parallel to the first corrugation direction D2 and passes through the second guiding hole 44. Preferably, the auxiliary shaping member 40 is provided with an oil dripping hole 46, which penetrates to the second guiding hole 44. A lubricating substance can be applied between the second guiding hole 44 and the guiding shaft through the oil dripping hole 46. It can be understood that in addition to the guiding shaft, the first guiding mechanism 43 may also separately or simultaneously include other feasible specific guiding methods such as a combination of a guiding slide rail and a guiding chute. In addition, the differences between components such as the guiding shaft, the guiding column, and the guiding pin referred to herein are only in their relative sizes, and there is no obvious difference in their guiding functions. Ignoring the size, it can be understood that the three refer to the same type of component.

[0109] Furthermore, the limiting frame 12 and the auxiliary shaping member 40 are respectively provided with mutually cooperating cam surfaces. As Figure 5 and Figure 7As shown, a first wedge block 45 is provided on the side of the auxiliary shaping member 40, which has a first cam surface 451 formed by an inclined surface. A second wedge block 122 corresponding to the first wedge block 45 is provided at the corresponding position on the inner side surface of the limit frame 12, which has a second cam surface 123 formed by an inclined surface. It can be understood that the inclined surface here refers to that the cam surface is inclined with respect to the main movement direction (i.e., the first direction D1) of the auxiliary shaping member 40, and the inclined directions of the cam surfaces corresponding to the two auxiliary shaping members 40 are opposite. Refer to Figure 10A , in the second reset position, the two auxiliary shaping members 40 are separated by a first distance L1 (calculated based on the outermost side surfaces with the farthest distance between them). As the auxiliary shaping member 40 moves towards the second processing position, until the first cam surface 451 and the second cam surface 123 come into contact with each other, the two auxiliary shaping members 40 always maintain the first distance L1 ( Figure 10B ). Further, as the first cam surface 451 and the second cam surface 123 start to contact, the inclined setting of the cam surface forces the two auxiliary shaping members 40 to translate towards the middle along the guide shaft, and the distance between them starts to decrease. Until the second processing position, the distance between them becomes the smallest, being separated by a second distance L2. In this way, the automatic adjustment of the distance between the auxiliary shaping members 40 is achieved through the cooperation of the cam surfaces.

[0110] Preferably, the auxiliary shaping member 40 is further provided with a corresponding traction device for resetting the distance between the two to the larger first distance L1 after the auxiliary shaping member 40 returns to the second reset position. In some embodiments, the traction device can be an elastic member such as a spring. Specifically, a spring that is stretched after the cam surfaces start to cooperate and thus applies a pulling force to the auxiliary shaping member 40 can be provided between each auxiliary shaping member 40 and the auxiliary shaping frame 42, or a spring that is compressed after the cam surfaces start to cooperate and thus applies a compression and rebound force to the auxiliary shaping member 40 can be provided between the two auxiliary shaping members 40, or different springs can be provided simultaneously to apply a pulling force and a compression and rebound force respectively. Other embodiments of the traction device can also be other feasible driving mechanisms such as hydraulic cylinders, ball screws, pneumatic devices, electric motors, etc.

[0111] In the embodiments introduced above, the decrease in the distance between the auxiliary shaping members 40 is achieved through the cam surfaces, and the increase and reset of the distance are achieved through the traction device. However, it can be understood that in alternative embodiments, the decrease in the distance can also be achieved through the traction device and the increase and reset of the distance can be achieved through the cam surfaces, or both the decrease and the increase and reset of the distance can be achieved through two sets of cam surfaces, or both the decrease and the increase and reset of the distance can be achieved through the traction device, or through a combination of the cam surfaces and the traction device.

[0112] The above description of various embodiments of the present invention is provided for the purpose of description to a person of ordinary skill in the relevant art. It is not intended to exclude or limit the present invention to a single disclosed embodiment. As above, those of ordinary skill in the art taught above will understand various alternatives and modifications of the present invention. Thus, while some alternative embodiments have been specifically described, those of ordinary skill in the art will understand or relatively easily develop other embodiments. The present invention is intended to cover all alternatives, modifications, and variations of the present invention described herein, as well as other embodiments falling within the spirit and scope of the present invention described above.

Claims

1. A processing device for metal corrugated plate, characterized in that: The processing device comprises: A first mold (10), the first mold (10) comprising a base component (11), the base component (11) being constructed as an integral component and provided with a shaping recess (111); a blank pressing plate (20) removably attached to the first die (10) to clamp a metal plate to be processed between the first die (10) and the blank pressing plate (20), at least a portion of the metal plate covering the shaping recess (111), wherein the blank pressing plate (20) restricts the metal plate from moving relative to the base member (11) along a first direction perpendicular to the metal plate and allows the metal plate to move relative to the base member (11) within a plane perpendicular to the first direction; and a second mold (30), wherein the first mold (10) and the second mold (30) are respectively arranged on both sides of the metal plate, the second mold (30) comprises a shaping convex portion (31), the shaping convex portion (31) has a contour shape matching the shaping concave portion (111), and the second mold (30) is movable relative to the base component (11) along the first direction between a processing position and a reset position, in which the shaping convex portion (31) can press at least a portion of the metal plate into the shaping concave portion (111) to form corrugations, and in the reset position, the shaping convex portion (31) moves out of the shaping concave portion (111); The metal plate has a prefabricated first corrugation (202) extending along a first corrugation direction, and the processing device is used to process a second corrugation (203) extending along a second corrugation direction, wherein the second corrugation direction is perpendicular to the first corrugation direction, wherein the first mold (10) is provided with an avoidance recess (112), and when the metal plate is clamped between the first mold (10) and the press plate (20), the first corrugation (202) is accommodated in the avoidance recess (112); The first mold (10) further comprises an auxiliary shaping member (40), wherein the auxiliary shaping member (40) is arranged on a side of the first mold (10) facing away from the second mold (30), and an auxiliary shaping protrusion (41) for processing a knot feature at the intersection (204) of the first corrugation (202) and the second corrugation (203) is arranged at an end facing the metal plate, and the auxiliary shaping member (40) is movably arranged between a second processing position where the auxiliary shaping protrusion (41) squeezes the metal plate and a second reset position where the auxiliary shaping protrusion (41) is away from the metal plate.

2. The processing device according to claim 1, characterized in that: At least one of the surface of the metal plate, the surface of the base member (11) in contact with the metal plate, and the surface of the blank plate (20) in contact with the metal plate has a friction reducing arrangement.

3. The processing device according to claim 2, characterized in that: The friction reducing arrangement comprises a film attached to the surface, the film having a coefficient of friction less than a coefficient of friction of at least one of the metal plate, the base member (11) and the blank holder (20).

4. The processing device according to claim 1, characterized in that: The pressing plate (20) is provided with a fixing protrusion (21), and when the metal plate is clamped between the first mold (10) and the pressing plate (20), the fixing protrusion (21) extends into the first corrugation (202) and clamps and fixes the first corrugation (202) along the first direction together with the avoidance recess (112).

5. The processing device according to claim 1, characterized in that: The auxiliary shaping components (40) include two components and are arranged along the first corrugation direction on both sides of the shaping recess (111).

6. The processing device according to claim 5, characterized in that: The two auxiliary shaping components (40) are spaced apart by a first distance along the first corrugation direction when located at the second reset position and are spaced apart by a second distance along the first corrugation direction when located at the second processing position, and the first distance is greater than the second distance.

7. The processing device according to claim 6, characterized in that: The first mold (10) comprises an auxiliary shaping frame (42) and a first guiding mechanism, the auxiliary shaping member (40) is mounted on the auxiliary shaping frame (42), and the first guiding mechanism is configured to guide the auxiliary shaping member (40) to move along the first corrugation direction.

8. The processing device according to claim 7, characterized in that: The first guiding mechanism comprises: a combination of a first guide pin and a first guide hole that cooperate with each other, wherein the first guide pin extends in parallel to the first corrugation direction, and / or A combination of a first guide slide block and a first guide slot that cooperate with each other, wherein the first guide slot extends in parallel to the first corrugation direction.

9. The processing device according to claim 8, characterized in that: The first guide mechanism comprises a first guide pin mounted on the auxiliary shaping frame (42); the auxiliary shaping component (40) is provided with a first guide hole and is movably mounted on the first guide pin through the first guide hole; the auxiliary shaping component (40) is also provided with an oil dripping hole (46) extending through the first guide hole.

10. The processing device according to claim 6, characterized in that: The auxiliary shaping member (40) is provided with at least one of a cam surface and a traction device, and the distance between the two auxiliary shaping members (40) along the first corrugation direction is automatically adjusted by the cam surface and / or the traction device as the auxiliary shaping member (40) moves between the second reset position and the second processing position.

11. The processing device according to claim 10, characterized in that: The first mold (10) is provided with a through cavity (114) extending through the shaping recess (111); at least a part of the travel of the auxiliary shaping component (40) moving from the second reset position to the second processing position is located in the through cavity (114); wherein the auxiliary shaping component (40) is provided with a first cam surface (451); and a second cam surface (123) is provided in the through cavity (114); during the process of the auxiliary shaping component (40) moving from the second reset position to the second processing position, the first cam surface (451) cooperates with the second cam surface (123) to automatically adjust the distance between the two auxiliary shaping components (40) along the first corrugation direction to the second distance.

12. The processing device according to claim 10, characterized in that: The traction device includes at least one of an elastic member, a hydraulic cylinder, a pneumatic device, an electric motor, and a ball screw.

13. The processing device according to claim 1, characterized in that: The processing device comprises a second guide mechanism, which is configured to guide the auxiliary shaping member (40) to move relative to the base component (11) along the first direction.

14. The processing device according to claim 13, characterized in that: The second guiding mechanism comprises: a combination of a second guide pin and a second guide hole that cooperate with each other, wherein the second guide pin extends in parallel to the first direction, and / or A combination of a second guide sliding block and a second guide sliding groove that cooperate with each other, wherein the second guide sliding groove extends in parallel to the first direction.

15. The processing device according to claim 1, characterized in that: The processing device comprises a third guiding mechanism, which is configured to guide the second mold (30) to move relative to the first mold (10) along the first direction.

16. The processing device according to claim 15, characterized in that: The third guiding mechanism comprises: a combination of a third guide pin and a third guide hole that cooperate with each other, wherein the third guide pin extends in parallel to the first direction, and / or A combination of a third guide sliding block and a third guide sliding groove that cooperate with each other, wherein the third guide sliding groove extends in parallel with the first direction.

17. The processing device according to claim 1, characterized in that: The auxiliary shaping protrusion (41) has a profile that tapers toward the metal plate in a cross section perpendicular to the second corrugation direction, and an end portion of the auxiliary shaping protrusion (41) is configured as an arc-shaped surface.

18. The processing device according to claim 17, characterized in that: The auxiliary shaping protrusion (41) has a uniform cross-sectional shape along the second corrugation direction, or The auxiliary shaping protrusion (41) is provided with a notch portion spanning the crest of the first corrugation (202) at a position corresponding to the crest of the first corrugation (202).

19. The processing device according to claim 1, characterized in that: A latch tongue and an elastic member are provided in the longitudinal middle portion of the shaping protrusion (31); under the action of the elastic member, the latch tongue elastically protrudes outwards along the first direction relative to the rest of the shaping protrusion (31).

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