Synchronous variable pitch one-time extrusion molding device and molding method for corrugated plate member

Abstract

The application provides a synchronous variable-distance one-time extrusion forming device and method of a corrugated plate component, comprising: a device chassis; a fixed frame, a vertical guide support structure, an upper die structure, and a lower die structure; when the upper die structure moves vertically, the upper die structure is vertically staggered with the lower die structure to form a metal plate into a corrugated plate; and a horizontal spacing adjustment structure drives the upper die structure and the lower die structure to produce a horizontal compression displacement during the pressing of the metal plate, changes the horizontal staggered spacing of the two, and adjusts the horizontal spacing between the corrugations on the corrugated plate. The vertically staggered upper die structure and the lower die structure which can be horizontally compressed are used to realize one-time extrusion forming of the metal plate, and the horizontal staggered spacing of the upper and lower dies is synchronously controlled by the horizontal spacing adjustment structure during the forming process, which can adapt to the horizontal deformation requirement of the plate bending, realize synchronous variable-distance integrated forming, improve the forming precision and production efficiency, and adapt to the processing and production of corrugated plate components of multiple specifications.

Description

Technical Field

[0001] This invention relates to the field of sheet metal forming technology, and more specifically, to a synchronous variable-pitch one-time extrusion forming device and forming method for corrugated sheet components. Background Technology

[0002] In infrastructure construction such as bridges, roads, and municipal engineering, expansion joints are key components ensuring the safe expansion and contraction of structures under the influence of temperature changes, vehicle loads, concrete shrinkage and creep, and foundation deformation. Traditional expansion joints are prone to problems such as vehicle bouncing, noise, water seepage, damage, and frequent maintenance after long-term use, making them unable to meet the demands of modern transportation for driving comfort, structural durability, and low maintenance costs. Against this backdrop, seamless, continuous, low-noise, and easy-to-maintain seamless expansion joint structures have become an industry trend. Seamless expansion joints achieve continuous and smooth force distribution at the expansion joint location and on the vehicle surface through the synergistic action of elastic materials, metal load-bearing components, anchoring components, and deformation-coordinating components. The processing precision, forming quality, and structural consistency of its internal metal components directly determine the assembly precision, load-bearing performance, and service life of the expansion joint.

[0003] In the core components of seamless expansion joints, continuous trapezoidal corrugated plates serve as crucial components for load-bearing, support, and deformation coordination. They are made from sheet metal through plastic forming and consist of multiple corrugated units along their length, comprising upper flat sections, lower flat sections, and inclined folded edge sections. Compared to ordinary flat plate components, these corrugated plates have extremely high requirements for wave height, wave pitch, bending angle, bending line position, and overall dimensional consistency. Insufficient forming precision can lead to assembly deviations, stress concentration, and deformation inconsistencies, severely impacting the overall stability of the expansion joint.

[0004] The forming process of continuous trapezoidal corrugated plates is not simply vertical pressing. During bending, the inclined folded edge changes from horizontal to inclined, and the horizontal projection distance between adjacent bending lines changes dynamically with the increasing forming depth. That is, while the plate deforms vertically, there is a need for lateral shrinkage and displacement compensation. How to adapt to the lateral distance variation during the bending process under the premise of simultaneous forming of multiple corrugated units has become the core technical challenge for efficient and high-precision processing of this type of component.

[0005] Currently, the processing of metal corrugated sheets mainly employs four technical solutions: wave-by-wave bending, step-by-step corrugation, fixed integral mold pressing, and roll forming. All of these have significant limitations. Wave-by-wave bending relies on a bending machine for sequential positioning and bending, offering strong versatility but requiring multiple clamping and positioning operations, resulting in low processing efficiency. Furthermore, the positioning reference changes with the forming state, easily leading to accumulated errors in wave pitch and height, and poor dimensional consistency. Step-by-step corrugation equipment is more specialized, but still uses a wave-by-wave step-by-step pressing mode, making it impossible to achieve simultaneous forming of multiple corrugations on a single sheet, limiting improvements in cycle time and accuracy. Fixed integral molds can achieve partial workpiece pressing in one operation, but the relatively fixed position of the forming part cannot match the lateral pitch requirements of trapezoidal corrugation bending, easily causing defects such as sheet stretching, material accumulation, bending line misalignment, and incomplete forming. Roll forming is suitable for mass production of long-sized sheets, but requires multi-stage roller groups and long forming channels, resulting in large equipment footprints, cumbersome changeover and debugging, and difficulty in adapting to the flexible processing needs of fixed-length, multi-specification, and small-batch corrugated sheets for seamless expansion joints.

[0006] Existing special forming equipment for small-sized trapezoidal corrugated sheets is only designed for specific concave structures and does not adopt a split forming mold and synchronous pitch changing mechanism, so it cannot solve the problem of synchronous pitch changing forming of a whole continuous trapezoidal corrugated sheet in one extrusion process.

[0007] Therefore, there is an urgent need for a molding device and molding method to solve the problems in the existing technology. Summary of the Invention

[0008] The main objective of this invention is to provide a synchronous variable-pitch one-time extrusion molding device and molding method for corrugated plate components, so as to at least solve the problems in the prior art that it is impossible to synchronously adapt to the lateral variable-pitch requirements of trapezoidal corrugated plates in one-time extrusion molding, making it difficult to achieve synchronous molding of multiple corrugated units and resulting in low processing efficiency.

[0009] To achieve the above objectives, a first aspect of the present invention provides a synchronous variable-pitch one-time extrusion molding device for corrugated plate components, comprising: a device base frame; a fixed frame fixedly connected to the device base frame; a vertical guide support structure connected to both the device base frame and the fixed frame; an upper die structure connected to the vertical guide support structure, wherein the upper die structure moves vertically under the guidance of the vertical guide support structure and can be compressed in the horizontal direction; a lower die structure mounted on the device base frame and compressible in the horizontal direction, wherein when the upper die structure moves vertically, it vertically interlocks with the lower die structure to form a corrugated plate from a metal sheet; and a lateral spacing adjustment structure fixed to the device base frame, wherein the lateral spacing adjustment structure is used to drive the upper die structure and the lower die structure to generate horizontal compression displacement during the pressing of the metal sheet, thereby changing the lateral spacing between the two interlocking arrangements and adjusting the lateral spacing between the corrugations on the corrugated plate.

[0010] Optionally, the device base includes: a base; a first transverse guide rod, the first transverse guide rod being horizontally arranged and its two ends being fixed on the base; the lower pressure mold structure being sleeved on the first transverse guide rod and being capable of transverse compression deformation along the first transverse guide rod.

[0011] Optionally, the mounting bracket includes:

[0012] Two sets of lateral mounting blocks, the bottoms of the two sets of lateral mounting blocks being fixedly connected to the side end faces of the device base on opposite sides;

[0013] The top template has its side end faces on both sides fixedly connected to the top of the two sets of lateral mounting blocks; multiple corners of the top template are respectively connected to the top of the vertical guide support structure.

[0014] Optionally, the vertical guide support structure includes:

[0015] Multiple straight guide pillars, the tops of which are connected one-to-one with multiple corners of the top template, and the bottoms of which are fixedly connected to the base frame of the device;

[0016] The middle template is slidably fitted onto the plurality of straight guide posts, and the middle template is located below the top template;

[0017] The second transverse guide rod is horizontally arranged and its two ends are fixed on the middle template. The upper pressure mold structure is sleeved on the second transverse guide rod and can be laterally compressed and deformed along the second transverse guide rod.

[0018] A vertical hydraulic cylinder, the cylinder body of which is fixed to the top of the fixed frame, the piston of which is fixedly connected to the middle template, and the axial direction of the piston of the vertical hydraulic cylinder is parallel to the axial direction of the straight guide column.

[0019] Optionally, the lower die structure includes:

[0020] Multiple first elastic support structures are slidably and evenly spaced on the first transverse guide rod;

[0021] Multiple first mold heads are slidably and evenly spaced on the first transverse guide rod, and each first elastic support structure is located between every two first mold heads;

[0022] The lower die roller slider is sleeved on one end of the first transverse guide rod and located between the lower die structure and the transverse spacing adjustment structure; the first side of the lower die roller slider is vertically rolled in contact with the transverse spacing adjustment structure, and the second side of the lower die roller slider is fixedly connected to the first elastic support structure or the first die head located at the far end of the first transverse guide rod; the bottom of the lower die roller slider is rolled in connection with the base plate of the base.

[0023] When the first elastic support structure is subjected to a thrust from top to bottom, the first elastic support structure is compressed.

[0024] Optionally, the upper mold structure includes:

[0025] Multiple second elastic support structures are slidably and evenly spaced on the second transverse guide rod;

[0026] Multiple second mold heads are slidably and evenly spaced on the second transverse guide rod, with each second mold head located between every two second elastic support structures;

[0027] An upper die roller slider is sleeved on one end of the second transverse guide rod and located between the upper die structure and the transverse spacing adjustment structure; the first side of the upper die roller slider is vertically rolled in contact with the transverse spacing adjustment structure, and the second side of the upper die roller slider is fixedly connected to the second die head or the second elastic support structure located at the far end of the second transverse guide rod; the top of the upper die roller slider is rolled in contact with the bottom surface of the middle die plate.

[0028] When the second elastic support structure is subjected to a thrust from bottom to top, the second elastic support structure is compressed; the distance between adjacent second elastic support structures and the second mold head is the same; each second mold head corresponds vertically to each first elastic support structure, and each second elastic support structure corresponds vertically to each first mold head.

[0029] Optionally, the first elastic support structure and the second elastic support structure have the same structure and are arranged in a staggered manner facing each other; the first elastic support structure includes:

[0030] A guide mounting block, comprising two vertical plates and a horizontal plate disposed on the top of the two vertical plates, wherein the bottom of the two vertical plates is sleeved on the second horizontal guide rod;

[0031] A telescopic support block, wherein the two sides of the telescopic support block are vertically slidably embedded between the two vertical plates of the guide mounting block;

[0032] A compression spring is located between the two vertical plates, with the top of the compression spring connected to the bottom of the horizontal plate and the bottom of the compression spring connected to the top of the telescopic support block.

[0033] The bottom of the telescopic support block engages with the top of the first mold head located below it. When the corrugated plate is formed, the compression spring is compressed. After the corrugated plate is formed, the compression spring returns to its original position, pushing the formed corrugated plate out.

[0034] Optionally, the lateral spacing adjustment structure includes:

[0035] A transverse hydraulic cylinder, wherein the cylinder body of the transverse hydraulic cylinder is fixed on the base, and the piston of the transverse hydraulic cylinder extends and retracts in the horizontal direction;

[0036] A transverse push plate, one side of which is fixedly connected to the piston of the transverse hydraulic cylinder, and the other side of which is simultaneously connected to the first side of the upper die roller slider and the first side of the lower die roller slider;

[0037] A guide rail slider is horizontally slidably mounted on a guide rail on the base, and the guide rail slider is fixed to the bottom of the transverse push plate;

[0038] Two sets of cross braces are provided. The first set of cross braces and the second set of cross braces are respectively installed on the upper mold structure and the lower mold structure, and are connected in the same way. The opposite side holes on both sides of the first set of cross braces are fitted onto a set of first pins. Each set of first pins is horizontally slidably installed in each set of waist-shaped grooves of each first mold head. Each middle hole of the first set of cross braces is fitted onto each second pin. The second pins are fixed to the plate surface between the two sides of the telescopic support block.

[0039] Optionally, a vertically extending guide hole is provided on the other side of the transverse push plate, and a T-head is installed on the first side of the upper die roller slider and the first side of the lower die roller slider. One end of the T-head is locked in the guide hole and can move vertically along the guide hole.

[0040] When the transverse push plate moves horizontally, the upper pressure die roller slider and the lower pressure die roller slider move horizontally synchronously through the T-shaped head.

[0041] A second aspect of the present invention provides a method for synchronous variable-pitch one-time extrusion molding of a corrugated plate component, implemented based on the molding apparatus described in the present invention, the molding method comprising the following steps:

[0042] The metal sheet to be processed is placed on top of the lower die structure, and the horizontal spacing adjustment structure, the vertical guide support structure, the upper die structure and the lower die structure are in their initial positions.

[0043] The vertical guide support structure drives the upper mold structure to move downward. When the bottom of the upper mold structure contacts the metal sheet to be processed, the pre-pressing and positioning of the metal sheet to be processed is completed, and the metal sheet to be processed is kept in a stable position before forming.

[0044] After pre-pressing and positioning are completed, the vertical guide support structure continues to drive the upper pressing mold structure to move downward, causing the metal sheet to be processed to bend and deform between the upper pressing mold structure and the lower pressing mold structure to form a pre-made corrugated plate; at the same time, the horizontal spacing adjustment structure transmits the horizontal force to the upper pressing mold structure and the lower pressing mold structure, so that the upper pressing mold structure and the lower pressing mold structure can adjust the corrugation spacing of the corrugated plate;

[0045] When the vertical guide support structure moves to the preset forming position and the horizontal spacing adjustment structure moves to the corresponding horizontal spacing position, the upper pressing mold structure and the lower pressing mold structure work together to form the metal sheet to be processed into a wave plate component with multiple continuous wave units in one step.

[0046] After the molding is completed, the vertical guide support structure moves in the opposite direction, causing the upper mold structure to move upward, and the horizontal spacing adjustment structure gradually resets.

[0047] This invention discloses a synchronous variable-pitch one-time extrusion molding device for a corrugated plate component, comprising: a device base frame; a fixed frame fixedly connected to the device base frame; a vertical guide support structure connected to both the device base frame and the fixed frame; an upper die structure connected to the vertical guide support structure, the upper die structure moving vertically under the guidance of the vertical guide support structure and compressible in the horizontal direction; a lower die structure mounted on the device base frame and compressible in the horizontal direction, wherein when the upper die structure moves vertically, it vertically interlocks with the lower die structure to form a corrugated plate from a metal sheet; and a lateral spacing adjustment structure fixed to the device base frame, the lateral spacing adjustment structure being used to drive the upper die structure and the lower die structure to generate horizontal compression displacement during the pressing of the metal sheet, changing the lateral interlocking spacing between them, thereby adjusting the lateral spacing between the corrugations on the corrugated plate. Therefore, a vertical guide support structure is adopted to ensure the vertical movement of the upper die. The horizontally compressible upper die structure and the lower die structure are vertically interlocked to achieve one-time extrusion forming of metal sheet. At the same time, the horizontal spacing adjustment structure can synchronously control the horizontal interlocking spacing of the upper and lower dies during the forming process, which can adapt to the horizontal deformation requirements of sheet bending. The horizontal spacing of the corrugated plate can be flexibly adjusted without changing the mold, realizing synchronous variable spacing integrated forming, simplifying the processing process, improving forming accuracy and production efficiency, and adapting to the processing and production of corrugated plate components of various specifications. Attached Figure Description

[0048] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0049] Figure 1 This is an overall structural diagram of a synchronous variable-pitch one-time extrusion molding device for a corrugated plate component, which is an optional embodiment of the present invention.

[0050] Figure 2 This is an exploded view of the overall structure of a synchronous variable-pitch one-time extrusion molding device for a corrugated plate component, which is optional according to an embodiment of the present invention.

[0051] Figure 3 This is a partial schematic diagram of an optional upper mold structure according to an embodiment of the present invention;

[0052] Figure 4 This is a partial cross-sectional schematic diagram of an optional upper mold structure according to an embodiment of the present invention;

[0053] Figure 5 This is a partial exploded view of an optional upper mold structure according to an embodiment of the present invention;

[0054] Figure 6This is a schematic diagram of the initial positions of the upper and lower pressing mold structures when the plate is placed in place, according to an embodiment of the present invention.

[0055] Figure 7 This is a schematic diagram showing the positions of the upper and lower pressure mold structures during optional vertical pre-compression positioning according to an embodiment of the present invention;

[0056] Figure 8 This is a schematic diagram showing the positions of the upper and lower die structures during a composite forming process of vertical bending and horizontal synchronous pitch change, as described in an embodiment of the present invention.

[0057] Figure 9 This is a schematic diagram showing the positions of the upper and lower die structures during the optional pressing and pressure holding molding process according to an embodiment of the present invention;

[0058] Figure 10 This is a schematic diagram showing the positions of the upper and lower die structures during reset and demolding, as optional according to an embodiment of the present invention.

[0059] Figure label:

[0060] 1. Device base frame; 11. Base; 12. First transverse guide rod; 13. Baffle; 2. Fixing frame; 21. Side mounting block; 22. Top template; 3. Vertical guide support structure; 31. Straight guide edge column; 32. Middle template; 33. Second transverse guide rod; 34. Vertical hydraulic cylinder; 4. Upper die structure; 41. Second elastic support structure; 411. Guide mounting block; 412. Telescopic support block; 413. Compression spring; 42. Second die head; 43. Upper die roller slider; 5. Lower die structure; 51. First elastic support structure; 52. First die head; 53. Lower die roller slider; 6. Transverse spacing adjustment structure; 61. Transverse hydraulic cylinder; 62. Transverse push plate; 63. Guide rail slider; 64. Cross brace; 65. First pin; 66. Second pin; 67. T-head; 7. Metal sheet to be processed. Detailed Implementation

[0061] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0062] like Figures 1-10 As shown, the present invention provides a synchronous variable-pitch one-time extrusion molding device for corrugated plate components, comprising:

[0063] Device base frame 1;

[0064] The fixing frame 2 is fixedly connected to the base frame 1 of the device;

[0065] The vertical guide support structure 3 is connected to the device base frame 1 and the fixing frame 2 respectively;

[0066] The upper pressing mold structure 4 is connected to the vertical guide support structure 3. The upper pressing mold structure 4 moves vertically under the guidance of the vertical guide support structure 3 and can be compressed in the horizontal direction.

[0067] The lower pressing mold structure 5 is installed on the device base frame 1 and can be compressed in the horizontal direction. When the upper pressing mold structure 4 moves vertically, it is vertically interlocked with the lower pressing mold structure 5 to form the metal sheet into a corrugated plate.

[0068] A lateral spacing adjustment structure 6 is fixed on the device base frame 1. The lateral spacing adjustment structure 6 is used to drive the upper pressing mold structure 4 and the lower pressing mold structure 5 to produce horizontal compression displacement during the pressing of the metal sheet, thereby changing the spacing between the two laterally staggered arrangements and adjusting the lateral spacing between the corrugations on the corrugated plate.

[0069] Specifically, the base frame 1 is the foundation bearing base of the entire molding device. It serves as the installation, positioning, and stress reference for all other structural components. It can bear the weight of the equipment, the extrusion molding load, and the horizontal and vertical forces of each structure, providing a stable installation platform and rigid support for the whole machine, ensuring that the overall structure is stable, uniformly stressed, and does not deform during the operation of the device.

[0070] The fixed frame 2 is fixedly connected to the device base frame 1 to form a closed rigid frame of the whole machine. It is mainly used to cooperate with the device base frame 1 to install and fix the vertical guide support structure 3, bear the reaction force and eccentric load when the vertical moving parts are working, constrain the installation position of the upper structure, improve the overall rigidity of the whole machine frame, and provide reliable structural support and position limit for vertical guidance and forming action.

[0071] The vertical guide support structure 3 connects the device base frame 1 and the fixed frame 2 at the top and bottom respectively. It mainly provides high-precision vertical linear guidance and rigid support for the upper mold structure 4, limiting the upper mold structure 4 to only move up and down in the vertical direction, preventing it from tilting, deviating and shaking during its up and down movement, ensuring that the upper mold's downward mold closing and upward mold release movement trajectory is accurate and stable, and at the same time bearing the vertical pressing load during the molding process.

[0072] The upper die structure 4 is assembled on the vertical guide support structure 3. It can achieve stable vertical lifting and lowering under the constraint of the vertical guide support structure 3, and complete the die-clamping, bending and forming and demolding actions with the lower die structure 5. It also has the structural characteristics of being compressible and retractable in the horizontal direction. It can shrink the horizontal spacing as the forming process occurs, adapt to the lateral deformation requirements when bending metal sheets, and participate in the overall shaping of the corrugated profile of the corrugated plate.

[0073] The lower die structure 5 is installed on the device base frame 1. It serves as the lower forming support component to support the metal sheet 7 to be processed. It works vertically with the upper die structure 4 to complete the extrusion and bending of the sheet. It also has the ability to be compressed and folded in the horizontal direction. It can generate horizontal spacing changes synchronously with the upper die structure 4 to match the lateral dimensional shrinkage law during the sheet forming process.

[0074] The lateral spacing adjustment structure 6 is fixedly installed on the device base frame 1. During the metal sheet extrusion molding process, it is used to drive the upper die structure 4 and the lower die structure 5 to generate horizontal compression displacement. By changing the lateral staggered spacing of the two structures, it adapts to the lateral deformation characteristics during the bending of the flat plate into a corrugated plate, thereby realizing the control of the lateral spacing between the corrugations of the formed corrugated plate.

[0075] This invention employs a vertical guide support structure 3 to ensure the vertical movement of the upper die, and utilizes the horizontally compressible upper die structure 4 and the lower die structure 5 in a vertically staggered arrangement to achieve one-time extrusion molding of metal sheets. Simultaneously, the lateral spacing adjustment structure 6 synchronously controls the lateral staggered spacing of the upper and lower dies during the molding process, which can adapt to the lateral deformation requirements when the sheet is bent. The lateral spacing of the corrugated board can be flexibly adjusted without changing the mold, realizing synchronous variable spacing integrated molding, simplifying the processing steps, improving molding accuracy and production efficiency, and adapting to the processing and production of corrugated board components of various specifications.

[0076] In one possible implementation, the device base 1 includes:

[0077] Base 11;

[0078] The first transverse guide rod 12 is horizontally arranged and its two ends are fixed on the base 11; the lower pressure mold structure 5 is sleeved on the first transverse guide rod 12 and can be laterally compressed and deformed along the first transverse guide rod 12.

[0079] Specifically, the device base frame 1 consists of a base 11 and a first transverse guide rod 12. The base 11 serves as the main load-bearing foundation of the device base frame 1, providing a stable installation reference and force support for the first transverse guide rod 12 and the lower pressing mold structure 5. The first transverse guide rod 12 is horizontally arranged and fixed at both ends to the base 11, which can provide a transverse arrangement reference and limit constraint for the lower pressing mold structure 5. The lower pressing mold structure 5 is fitted onto the first transverse guide rod 12. At the same time, the lower pressing mold structure 5 can generate transverse compression deformation along the extension direction of the first transverse guide rod 12, realizing the adaptive change of its own transverse spacing, and adapting to the variable pitch adjustment requirements in the subsequent corrugated plate forming process.

[0080] In one possible implementation, the fixing frame 2 includes:

[0081] Two sets of lateral mounting blocks 21, the bottoms of the two sets of lateral mounting blocks 21 are respectively fixedly connected to the side end faces of the device base frame 1 on opposite sides;

[0082] The top template 22 has its side end faces fixedly connected to the top of the two sets of lateral mounting blocks 21 on opposite sides; multiple corners of the top template 22 are respectively connected to the top of the vertical guide support structure 3.

[0083] Specifically, the fixed frame 2 is composed of two sets of lateral mounting blocks 21 and a top template 22. The bottom of the two sets of lateral mounting blocks 21 is fixed to the two end faces of the device base frame 1, which can form a stable lateral support point above the device base frame 1, providing a reliable installation bearing foundation for the top template 22. The top template 22 is fixedly connected to the top of the two sets of lateral mounting blocks 21 through its own two end faces, thus forming an overall frame structure with the lateral mounting blocks 21. It relies on the device base frame 1 to achieve overall position fixation and force support. At the same time, the top template 22 uses its own corner position to complete the docking installation with the top of the vertical guide support structure 3, providing an upper fixed support point and installation positioning benchmark for the vertical guide support structure 3, ensuring the stability of the vertical guide support structure 3 layout and the regularity of the vertical working posture.

[0084] In one possible implementation, the vertical guide support structure 3 includes:

[0085] Multiple straight guide posts 31 are provided, with the top of each of the multiple straight guide posts 31 corresponding to multiple corners of the top template 22, and the bottom of each of the multiple straight guide posts 31 being fixedly connected to the device base frame 1.

[0086] The middle template 32 is slidably fitted onto the plurality of straight guide posts 31, and the middle template 32 is located below the top template 22;

[0087] The second transverse guide rod 33 is horizontally arranged and its two ends are fixed on the middle template 32. The upper pressure mold structure 4 is sleeved on the second transverse guide rod 33 and can be laterally compressed and deformed along the second transverse guide rod 33.

[0088] A vertical hydraulic cylinder 34 is provided, with its cylinder body fixed to the top of the fixed frame 2. The piston of the vertical hydraulic cylinder 34 is fixedly connected to the middle template 32, and the axial direction of the piston of the vertical hydraulic cylinder 34 is parallel to the axial direction of the straight guide post 31.

[0089] Specifically, multiple straight guide columns 31 are arranged vertically, with their top ends corresponding to the corners of the top template 22 in the fixed frame 2 and their bottom ends firmly fixed to the device base frame 1. This forms a regular vertical support column structure between the top template 22 and the device base frame 1, which can not only bear the installation load of the top template 22 and transfer it to the device base frame 1, thus strengthening the vertical structural rigidity of the entire machine frame, but also provide a constant vertical arrangement reference and linear guide reference for subsequent moving components.

[0090] The middle template 32 is fully fitted on the outside of multiple straight guide columns 31 and can slide vertically along the column body. It is located below the top template 22. With the limiting constraint of the straight guide columns 31, it can always maintain a horizontal posture and make regular vertical lifting and lowering movements without deviation or tilting. At the same time, as an intermediate bearing platform, it provides a stable installation carrier and positioning foundation for the second transverse guide rod 33. The movement trajectory is precisely limited by the straight guide columns 31.

[0091] The second transverse guide rod 33 is arranged horizontally and its two ends are fixedly installed on the middle template 32. It relies on the middle template 32 to obtain a stable installation support and horizontal positioning reference, providing a transverse arrangement support for the upper pressing mold structure 4. The upper pressing mold structure 4 is sleeved on the second transverse guide rod 33 and can generate transverse compression deformation along the extension direction of the second transverse guide rod 33. Relying on the limiting constraint of the second transverse guide rod 33, it ensures that the upper pressing mold structure 4 maintains the regularity of the installation position while realizing its own spacing adjustment.

[0092] The cylinder body of the vertical hydraulic cylinder 34 is fixedly installed on the top of the fixed frame 2. The piston end is connected to the middle template 32, and the piston movement axis is parallel to the axis of the straight guide column 31. During operation, the piston can provide a stable vertical driving force to the middle template 32 through the extension and retraction of the piston. Relying on the guiding effect of the straight guide column 31, the middle template 32 is driven to make a smooth vertical lifting and reciprocating motion. At the same time, its own installation position relies on the fixed frame 2 to form a reliable force support point, ensuring that the power output direction is consistent with the overall vertical movement direction.

[0093] In one possible implementation, the lower die structure 5 includes:

[0094] Multiple first elastic support structures 51 are slidably and evenly spaced on the first transverse guide rod 12.

[0095] Multiple first mold heads 52 are slidably and evenly spaced on the first transverse guide rod 12, and each first elastic support structure 51 is located between every two first mold heads 52.

[0096] The lower die roller slider 53 is sleeved on one end of the first transverse guide rod 12 and is located between the lower die structure 5 and the transverse spacing adjustment structure 6; the first side of the lower die roller slider 53 is vertically rolled in contact with the transverse spacing adjustment structure 6, and the second side of the lower die roller slider 53 is fixedly connected to the first elastic support structure 51 or the first die head 52 located at the far end of the first transverse guide rod 12; the bottom of the lower die roller slider 53 is rolled in connection with the bottom plate of the base 11.

[0097] When the first elastic support structure 51 is subjected to a thrust from top to bottom, the first elastic support structure 51 is compressed.

[0098] Specifically, multiple first elastic support structures 51 are slidably sleeved on the first transverse guide rod 12 at uniform intervals. They can slide laterally along the first transverse guide rod 12 and cooperate with the first die head 52 to perform relative displacement. They are an important component of the lower die structure 5 to achieve overall transverse compression deformation, and can also generate elastic compression deformation when subjected to vertical force.

[0099] Multiple first mold heads 52 are slidably mounted on the first transverse guide rod 12 at uniform intervals. First elastic support structures 51 are evenly distributed between two adjacent first mold heads 52. The first mold heads 52 can slide freely along the first transverse guide rod 12 and cooperate with the first elastic support structures 51 to achieve the overall transverse compression and shrinking effect of the lower mold structure 5 through mutual positional changes.

[0100] The lower die roller slider 53 is sleeved on the end of the first transverse guide rod 12 and is set at the connection position between the lower die structure 5 and the transverse spacing adjustment structure 6. One side of it forms a vertical rolling fit with the transverse spacing adjustment structure 6, and the other side is fixedly connected to the first elastic support structure 51 or the first die head 52 at the very end of the first transverse guide rod 12. The bottom is in rolling cooperation with the bottom plate of the base 11, which can smoothly transmit the transverse driving force and drive each first die head 52 and the first elastic support structure 51 to slide along the guide rod in linkage.

[0101] The first elastic support structure 51 has vertical elastic compression characteristics. When subjected to vertical thrust from top to bottom, it can generate compression deformation. It can adapt to the vertical shaping requirements in the metal sheet forming process and cooperate with the lateral sliding of each component to achieve the dual functions of flexible pitch change and stable forming of the lower die structure 5.

[0102] A baffle 13 is also provided on the base 11, wherein the end of the first transverse guide rod 12 away from the spacing adjustment structure is fixed on the baffle 13, and the first elastic support structure 51 or the first mold head 52 directly adjacent to the baffle 13 is fixedly connected to the baffle 13.

[0103] In one possible implementation, the upper molding structure 4 includes:

[0104] Multiple second elastic support structures 41 are slidably and evenly spaced on the second transverse guide rod 33;

[0105] Multiple second mold heads 42 are slidably and evenly spaced on the second transverse guide rod 33, and each second mold head 42 is located between every two second elastic support structures 41;

[0106] An upper die roller slider 43 is sleeved on one end of the second transverse guide rod 33 and located between the upper die structure 4 and the transverse spacing adjustment structure 6; the first side of the upper die roller slider 43 is vertically rolled in contact with the transverse spacing adjustment structure 6, and the second side of the upper die roller slider 43 is fixedly connected to the second die head 42 or the second elastic support structure 41 located at the far end of the second transverse guide rod 33; the top of the upper die roller slider 43 is rolled in contact with the bottom surface of the middle die plate 32.

[0107] When the second elastic support structure 41 is subjected to a thrust from bottom to top, the second elastic support structure 41 is compressed; the distance between adjacent second elastic support structures 41 and the second mold head 42 is the same; each second mold head 42 corresponds vertically to each first elastic support structure 51, and each second elastic support structure 41 corresponds vertically to each first mold head 52.

[0108] Specifically, multiple second elastic support structures 41 are slidably mounted on the second transverse guide rod 33 at uniform intervals, forming a regular transverse arrangement reference based on the second transverse guide rod 33. Each second elastic support structure 41 can slide laterally relative to the second transverse guide rod 33, and its position changes in coordination with the second mold head 42. Relying on its own sliding in coordination with the second mold head 42, it together forms the structural foundation of the upper mold structure 4, which can be laterally compressed and deformed.

[0109] Multiple second mold heads 42 are also slidably mounted on the second transverse guide rod 33 at uniform intervals, and a second mold head 42 is arranged between every two adjacent second elastic support structures 41. The second mold heads 42 can slide freely laterally along the second transverse guide rod 33, forming an interlaced arrangement with the second elastic support structures 41. By adjusting their relative positions, they work together with the second elastic support structures 41 to achieve the overall change in the transverse spacing of the upper mold structure 4.

[0110] The upper die roller slider 43 is fitted at the end of the second transverse guide rod 33, located in the connection area between the upper die structure 4 and the transverse spacing adjustment structure 6. One side of the slider is equipped with a roller that keeps it vertically rolling and in close contact with the transverse spacing adjustment structure 6. The other side is fixedly connected to the second die head 42 or the second elastic support structure 41 at the very end of the second transverse guide rod 33. A roller is also provided on the top, forming a rolling engagement with the bottom surface of the middle template 32. This allows the slider to maintain its own stable installation posture by relying on the middle template 32, and also to transmit external adjustment forces, driving the second die head 42 and the second elastic support structure 41 to slide together along the second transverse guide rod 33.

[0111] The second elastic support structure 41 can generate elastic compression deformation under the action of vertical thrust from bottom to top, and form a corrugated shape by vertical alignment and extrusion, which meets the vertical force requirements of corrugation forming. At the same time, the second elastic support structure 41 and the second die head 42 are evenly and equidistantly arranged, and the second die head 42 and the lower first elastic support structure 51, and the second elastic support structure 41 and the lower first die head 52 are respectively aligned vertically, so that the upper and lower die bodies are arranged in a regular and symmetrical manner, ensuring that the force is uniform in all parts of the sheet, and providing a reliable structural foundation for the stable pressing of a regular and uniform corrugated structure.

[0112] A baffle 13 is also provided on the base 11. The end of the second transverse guide rod 33 away from the spacing adjustment structure is fixed on the baffle 13. The second elastic support structure 41 or the second mold head 42 directly adjacent to the baffle 13 is fixedly connected to the baffle 13.

[0113] In one possible implementation, the first elastic support structure 51 and the second elastic support structure 41 have the same structure and are arranged in a staggered manner facing each other; the second elastic support structure 41 includes:

[0114] The guide mounting block 411 includes two vertical plates and a horizontal plate disposed on the top of the two vertical plates. The bottom of the two vertical plates is sleeved on the second horizontal guide rod 33.

[0115] Telescopic support block 412, the two sides of which are vertically slidably embedded between the two vertical plates of the guide mounting block 411;

[0116] Compression spring 413 is located between the two vertical plates, and the top of compression spring 413 is connected to the bottom of the horizontal plate, and the bottom of compression spring 413 is connected to the top of telescopic support block 412.

[0117] The bottom of the telescopic support block 412 engages with the top of the first mold head 52 located below it. When the corrugated plate is formed, the compression spring 413 is compressed. After the corrugated plate is formed, the compression spring 413 returns to its original position, pushing the formed corrugated plate out.

[0118] Specifically, the first elastic support structure 51 and the second elastic support structure 41 adopt the same construction form and are arranged in a staggered manner facing each other. They are assembled in accordance with the first horizontal guide rod 12 and the second horizontal guide rod 33 that have been set in front and behind. Through the staggered and aligned layout, a vertical force-bearing structure foundation that cooperates with each other is provided for the corrugated plate forming.

[0119] The guide mounting block 411 consists of two vertical plates and a horizontal plate mounted on top of the two vertical plates to form an overall frame structure. The bottom of the two vertical plates is fitted onto the first horizontal guide rod 12. The second horizontal guide rod 33 is used to achieve overall horizontal positioning and installation, which can provide vertical sliding limit space and top load-bearing mounting support for the internal telescopic support block 412.

[0120] The telescopic support block 412 is vertically embedded between the two vertical plates of the guide mounting block 411 on both sides, and can slide vertically along the inner side of the vertical plates. It relies on the limiting constraint of the guide mounting block 411 to keep the vertical movement trajectory from deviating. Its bottom can form a mating contact with the first die head 52 below, and can change its vertical position according to the molding force, adapting to the vertical stroke requirements in the corrugated plate pressing process.

[0121] Compression spring 413 is arranged between the two vertical plates of guide mounting block 411. The upper end of the spring is connected to the bottom of the horizontal plate, and the lower end is connected to the top of telescopic support block 412. It forms a fixed assembly position with the guide mounting block 411. When the corrugated plate is compressed and formed, it can generate compression deformation with the downward movement of telescopic support block 412, store elastic potential energy, and rely on its own elastic reset after the molding operation is completed to drive the telescopic support block 412 back to its position, so as to realize the ejection and demolding of the corrugated plate.

[0122] In one possible implementation, the lateral spacing adjustment structure 6 includes:

[0123] A transverse hydraulic cylinder 61, the cylinder body of which is fixed on the base 11, and the piston of which extends and retracts in the horizontal direction;

[0124] A transverse push plate 62, one side of which is fixedly connected to the piston of the transverse hydraulic cylinder 61, and the other side of which is simultaneously connected to the first side of the upper die roller slider 43 and the first side of the lower die roller slider 53.

[0125] The guide rail slider 63 is horizontally slidably mounted on the guide rail on the base 11, and the guide rail slider 63 is fixed to the bottom of the transverse push plate 62.

[0126] Two sets of cross braces 64 are installed on the upper mold structure 4 and the lower mold structure 5 respectively, and are connected in the same way. The side holes on both sides of the first set of cross braces 64 are fitted onto a set of first pins 65. Each set of first pins 65 is horizontally slidably installed in each set of waist-shaped grooves of each first mold head 52. Each middle hole of the first set of cross braces 64 is fitted onto each second pin 66. The second pins 66 are fixed to the plate surface between the two sides of the telescopic support block 412.

[0127] Specifically, the cylinder body of the transverse hydraulic cylinder 61 is fixedly mounted on the base 11. The piston of the transverse hydraulic cylinder 61 can extend and retract in the horizontal direction. The base 11 serves as a fixed bearing base, providing a horizontal power source for the entire transverse spacing adjustment structure 6. The horizontal extension and retraction of the piston provides a stable driving force for subsequent push plate transmission and spacing adjustment.

[0128] One side of the transverse push plate 62 is fixedly connected to the piston of the transverse hydraulic cylinder 61, and the other side of the transverse push plate 62 is simultaneously connected to the first side of the upper die roller slider 43 and the first side of the lower die roller slider 53. This allows the horizontal force output by the piston of the transverse hydraulic cylinder 61 to be synchronously transmitted to the upper die roller slider 43 and the lower die roller slider 53, thereby achieving synchronous linkage drive of the upper die structure 4 and the lower die structure 5.

[0129] The guide rail slider 63 is horizontally slidably mounted on the guide rail provided on the base 11. The guide rail slider 63 is fixed to the bottom of the transverse push plate 62 as one piece. Relying on the limiting and guiding function of the guide rail on the base 11, the transverse push plate 62 is constrained to slide in a straight line in the horizontal direction, so as to avoid the transverse push plate 62 from deviating and shaking when subjected to force, and to ensure the stability and motion accuracy of the transmission process of the transverse push plate 62.

[0130] The two sets of cross braces 64 are divided into a first set of cross braces 64 and a second set of cross braces 64, which are respectively installed on the upper mold structure 4 and the lower mold structure 5. The installation and connection methods of the two sets of cross braces 64 are exactly the same. The cross braces 64 are the core components for realizing the lateral spacing adjustment, and can synchronously and uniformly adjust the arrangement spacing between the first elastic support structure 51 and the first mold head 52, and between the second elastic support structure 41 and the second mold head 42. Taking the installation on the lower die structure 5 as an example, a set of side holes arranged opposite to each other on both sides of the first set of cross braces 64 are fitted onto a set of first pins 65. Each first pin 65 is horizontally slidably installed inside each set of waist-shaped grooves opened in a single first die head 52. Each middle hole of the first set of cross braces 64 is fitted onto each second pin 66. The second pin 66 is fixedly set on the plate surface between the two sides of the telescopic support block 412 in the first elastic support structure 51. Relying on the hinge opening and closing movement of the cross braces 64, the first die head 52 and the first elastic support structure 51 are precisely driven to move in a regular manner, thereby completing the uniform adjustment of the corrugation width. At the same time, when the telescopic support block 412 is pushed vertically up and down, the second pin 66 can move vertically in the middle hole of the first set of cross braces 64.

[0131] In one possible implementation, a vertically extending guide hole is provided on the other side of the transverse push plate 62, and a T-head 67 is installed on the first side of the upper die roller slider 43 and the first side of the lower die roller slider 53. One end of the T-head 67 is engaged in the guide hole and can move vertically along the guide hole.

[0132] When the transverse push plate 62 moves horizontally, the upper pressure die roller slider 43 and the lower pressure die roller slider 53 move horizontally synchronously through the T-shaped head 67.

[0133] Specifically, the side of the transverse push plate 62 is provided with a vertically extending guide hole. T-heads 67 are installed on the corresponding sides of the upper die roller slider 43 and the lower die roller slider 53. The T-heads 67 are inserted into the guide holes and can slide vertically along the guide holes. This structure can not only accommodate the vertical displacement of the upper and lower die structures 5 during molding, but also, when the transverse push plate 62 moves horizontally, through the locking linkage of the guide holes and the T-heads 67, drive the upper die roller slider 43 and the lower die roller slider 53 to simultaneously achieve horizontal withdrawal and inward pull-back. After the corrugation width is adjusted, it can accurately return to the initial position, ensuring that the spacing of each molding operation is regular and consistent.

[0134] The present invention also provides a synchronous variable-pitch one-time extrusion molding method for corrugated plate components, which is implemented based on the molding device described in the present invention. The molding method includes the following steps:

[0135] S1. Place the metal sheet 7 to be processed on top of the lower die structure 5. The horizontal spacing adjustment structure 6, the vertical guide support structure 3, the upper die structure 4, and the lower die structure 5 are in their initial positions.

[0136] S2. The vertical guide support structure 3 drives the upper pressing mold structure 4 to move downward. When the bottom of the upper pressing mold structure 4 contacts the metal plate to be processed 7, the pre-pressing and positioning of the metal plate to be processed is completed, and the metal plate to be processed 7 is kept in a stable position before forming.

[0137] S3. After the pre-pressing and positioning are completed, the vertical guide support structure 3 continues to drive the upper pressing mold structure 4 to move downward, so that the metal sheet to be processed 7 is bent and deformed between the upper pressing mold structure 4 and the lower pressing mold structure 5 to form a pre-made corrugated plate; at the same time, the horizontal spacing adjustment structure 6 transmits the horizontal force to the upper pressing mold structure 4 and the lower pressing mold structure 5, so that the upper pressing mold structure 4 and the lower pressing mold structure 5 adjust the corrugation spacing of the corrugated plate;

[0138] S4. When the vertical guide support structure 3 moves to the preset forming position and the horizontal spacing adjustment structure 6 moves to the corresponding horizontal spacing position, the upper pressing mold structure 4 and the lower pressing mold structure 5 work together to form the metal sheet to be processed 7 into a wave plate component with multiple continuous wave units in one step.

[0139] S5. After the molding is completed, the vertical guide support structure 3 moves in the opposite direction, driving the upper mold structure 4 to move upward, and the horizontal spacing adjustment structure 6 gradually resets.

[0140] Specifically, S1, the board is placed in place.

[0141] The metal sheet 7 to be processed is placed on the top forming area of ​​the lower die structure 5, so that the metal sheet 7, the lower die structure 5, and the first die head 52 form a reference fit and positioning; at this time, the upper die structure 4 is above the metal sheet 7 to be processed, and the horizontal spacing adjustment structure 6, the vertical guide support structure 3, the upper die structure 4, and the lower die structure 5 all maintain their initial positions. The horizontal hydraulic cylinder 61, the vertical hydraulic cylinder 34, the cross brace 64, the first die head 52, the second die head 42, and the telescopic support block 412 are all in the initial standby state, ready for the forming operation. Figure 6 As shown.

[0142] S2, Vertical preloading positioning

[0143] The vertical hydraulic cylinder 34 inside the vertical guide support structure 3 drives the middle template 32 to move downwards along the straight guide post 31. Simultaneously, the middle template 32 drives the upper pressing mold structure 4 to move downwards towards the metal sheet 7 to be processed. When the second die head 42 in the upper pressing mold structure 4 approaches and contacts the surface of the metal sheet 7, the pre-pressing and positioning of the sheet is completed. This vertical displacement is used to eliminate the initial gap between the second die head 42 and the metal sheet 7, forming a slight pressing limit on the sheet, ensuring that the metal sheet 7 remains stable before formal bending and forming, preventing displacement or slippage. Figure 7 As shown.

[0144] S3, Vertical bending forming and horizontal synchronous pitch-changing composite forming

[0145] After pre-pressing and positioning, the vertical hydraulic cylinder 34 continues to drive the middle template 32 and the upper pressing mold structure 4 downwards, causing the metal sheet 7 to be processed to bend and deform between the second mold head 42 of the upper pressing mold structure 4 and the first mold head 52 of the lower pressing mold structure 5. At the same time, the horizontal hydraulic cylinder 61 in the horizontal spacing adjustment structure 6 pushes the horizontal push plate 62 to move laterally along the guide rail groove of the base 11. The horizontal push plate 62 transmits the lateral force synchronously to the upper pressing mold structure 4 and the lower pressing mold structure 5 through the upper pressing mold roller slider 43 and the lower pressing mold roller slider 53. The cross brace 64 undergoes hinge deformation under the lateral force, and then drives multiple first mold heads 52, telescopic support blocks 412 and second mold heads 42 to move laterally closer or retract synchronously through the first pin shaft 65. The difference between the effective unfolded length of the sheet metal and the horizontal projection length after forming corresponds to the overall lateral shrinkage of each first die head 52 and second die head 42. Based on the target corrugation height, combined with the sheet metal thickness, die clearance, and springback compensation, the forming stroke of the vertical hydraulic cylinder 34 is set. The horizontal hydraulic cylinder 61 and the vertical hydraulic cylinder 34 operate in coordination according to preset displacement and speed, so that the lateral position changes of the first die head 52 and second die head 42 are precisely matched with the changes in the bending depth of the sheet metal. Figure 8 As shown.

[0146] S4. Pressing and Pressure Holding Forming

[0147] When the vertical hydraulic cylinder 34 moves to the preset forming position, and the horizontal hydraulic cylinder 61 simultaneously moves to the corresponding horizontal pitch-changing position, the second die head 42 and the second elastic support structure 41 of the upper die structure 4 cooperate with the first die head 52 and the first elastic support structure 51 of the lower die structure 5 to jointly form the complete forming contour of the target waveform, so that the metal sheet 7 to be processed is formed into a waveform plate component with multiple continuous trapezoidal waveform units in one go. Depending on the material and thickness of the sheet, short-term pressure holding can be applied at the forming endpoint to reduce the deviations in wave height, wave pitch, and bending angle caused by the elastic rebound of the sheet, ensuring the accuracy of the forming dimensions. Figure 9 As shown.

[0148] S5, Reset and Demolding

[0149] After the forming process is completed, the vertical hydraulic cylinder 34 retracts in the reverse direction, causing the middle template 32 and the upper die structure 4 to move upward as a whole; the horizontal hydraulic cylinder 61 can maintain its current position or gradually retract and reset according to the working conditions. During the forming process, the compressed spring 413 releases its stored energy, transmitting the elastic restoring force to the telescopic support block 412. The telescopic support block 412 applies an ejection force to the formed corrugated plate component, causing the corrugated plate component to separate from the first die head 52 and the second die head 42, achieving automatic demolding. Subsequently, the horizontal hydraulic cylinder 61, the cross brace 64, the first die head 52, the second die head 42, and the telescopic support block 412 return to their initial positions in sequence, and the entire machine returns to a standby state, ready to carry out the cyclic processing of the next metal sheet. Figure 10 As shown.

[0150] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A synchronous variable-pitch one-time extrusion molding device for corrugated plate components, characterized in that, include: Device base frame; The mounting bracket is fixedly connected to the base frame of the device; A vertical guide support structure is connected to the device base frame and the fixing frame, respectively; The upper molding structure is connected to the vertical guide support structure. The upper molding structure moves vertically under the guidance of the vertical guide support structure and can be compressed in the horizontal direction. The lower pressing mold structure is installed on the base frame of the device and can be compressed in the horizontal direction. When the upper pressing mold structure moves vertically, it is vertically interlocked with the lower pressing mold structure to form the metal sheet into a corrugated plate. A lateral spacing adjustment structure is fixed on the base frame of the device. The lateral spacing adjustment structure is used to drive the upper pressing die structure and the lower pressing die structure to produce horizontal compression displacement during the pressing of the metal sheet, thereby changing the spacing between the two laterally staggered arrangements and adjusting the lateral spacing between the corrugations on the corrugated plate.

2. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 1, characterized in that, The device base frame includes: Base; The first transverse guide rod is horizontally arranged and its two ends are fixed on the base; the lower pressure mold structure is sleeved on the first transverse guide rod and can be laterally compressed and deformed along the first transverse guide rod.

3. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 2, characterized in that, The fixing frame includes: Two sets of lateral mounting blocks, the bottoms of the two sets of lateral mounting blocks being fixedly connected to the side end faces of the device base on opposite sides; The top template has its side end faces on both sides fixedly connected to the top of the two sets of lateral mounting blocks; multiple corners of the top template are respectively connected to the top of the vertical guide support structure.

4. The synchronous variable-pitch one-time extrusion molding device for corrugated plate components according to claim 3, characterized in that, The vertical guide support structure includes: Multiple straight guide pillars, the tops of which are connected one-to-one with multiple corners of the top template, and the bottoms of which are fixedly connected to the base frame of the device; The middle template is slidably fitted onto the plurality of straight guide posts, and the middle template is located below the top template; The second transverse guide rod is horizontally arranged and its two ends are fixed on the middle template. The upper pressure mold structure is sleeved on the second transverse guide rod and can be laterally compressed and deformed along the second transverse guide rod. A vertical hydraulic cylinder, the cylinder body of which is fixed to the top of the fixed frame, the piston of which is fixedly connected to the middle template, and the axial direction of the piston of the vertical hydraulic cylinder is parallel to the axial direction of the straight guide column.

5. The synchronous variable-pitch one-time extrusion molding device for corrugated plate components according to claim 4, characterized in that, The lower pressing mold structure includes: Multiple first elastic support structures are slidably and evenly spaced on the first transverse guide rod; Multiple first mold heads are slidably and evenly spaced on the first transverse guide rod, and each first elastic support structure is located between every two first mold heads; The lower die roller slider is sleeved on one end of the first transverse guide rod and located between the lower die structure and the transverse spacing adjustment structure; the first side of the lower die roller slider is vertically rolled in contact with the transverse spacing adjustment structure, and the second side of the lower die roller slider is fixedly connected to the first elastic support structure or the first die head located at the far end of the first transverse guide rod; the bottom of the lower die roller slider is rolled in connection with the base plate of the base. When the first elastic support structure is subjected to a thrust from top to bottom, the first elastic support structure is compressed.

6. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 5, characterized in that, The upper mold structure includes: Multiple second elastic support structures are slidably and evenly spaced on the second transverse guide rod; Multiple second mold heads are slidably and evenly spaced on the second transverse guide rod, with each second mold head located between every two second elastic support structures; An upper die roller slider is sleeved on one end of the second transverse guide rod and located between the upper die structure and the transverse spacing adjustment structure; the first side of the upper die roller slider is vertically rolled in contact with the transverse spacing adjustment structure, and the second side of the upper die roller slider is fixedly connected to the second die head or the second elastic support structure located at the far end of the second transverse guide rod; the top of the upper die roller slider is rolled in contact with the bottom surface of the middle die plate. When the second elastic support structure is subjected to a thrust from bottom to top, the second elastic support structure is compressed; the distance between adjacent second elastic support structures and the second mold head is the same; each second mold head corresponds vertically to each first elastic support structure, and each second elastic support structure corresponds vertically to each first mold head.

7. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 6, characterized in that, The first elastic support structure and the second elastic support structure have the same structure and are arranged in a staggered manner facing each other. The second elastic support structure includes: A guide mounting block, comprising two vertical plates and a horizontal plate disposed on the top of the two vertical plates, wherein the bottom of the two vertical plates is sleeved on the second horizontal guide rod; A telescopic support block, wherein the two sides of the telescopic support block are vertically slidably embedded between the two vertical plates of the guide mounting block; A compression spring is located between the two vertical plates, with the top of the compression spring connected to the bottom of the horizontal plate and the bottom of the compression spring connected to the top of the telescopic support block. The bottom of the telescopic support block engages with the top of the first mold head located below it. When the corrugated plate is formed, the compression spring is compressed. After the corrugated plate is formed, the compression spring returns to its original position, pushing the formed corrugated plate out.

8. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 7, characterized in that, The lateral spacing adjustment structure includes: A transverse hydraulic cylinder, wherein the cylinder body of the transverse hydraulic cylinder is fixed on the base, and the piston of the transverse hydraulic cylinder extends and retracts in the horizontal direction; A transverse push plate, one side of which is fixedly connected to the piston of the transverse hydraulic cylinder, and the other side of which is simultaneously connected to the first side of the upper die roller slider and the first side of the lower die roller slider; A guide rail slider is horizontally slidably mounted on a guide rail on the base, and the guide rail slider is fixed to the bottom of the transverse push plate; Two sets of cross braces are provided. The first set of cross braces and the second set of cross braces are respectively installed on the upper mold structure and the lower mold structure, and are connected in the same way. The opposite side holes on both sides of the first set of cross braces are fitted onto a set of first pins. Each set of first pins is horizontally slidably installed in each set of waist-shaped grooves of each first mold head. Each middle hole of the first set of cross braces is fitted onto each second pin. The second pins are fixed to the plate surface between the two sides of the telescopic support block.

9. The synchronous variable-pitch one-time extrusion forming device for corrugated plate components according to claim 6, characterized in that, A vertically extending guide hole is provided on the other side of the transverse push plate. T-heads are installed on the first side of the upper die roller slider and the first side of the lower die roller slider. One end of the T-head is locked in the guide hole and can move vertically along the guide hole. When the transverse push plate moves horizontally, the upper pressure die roller slider and the lower pressure die roller slider move horizontally synchronously through the T-shaped head.

10. A method for synchronous variable-pitch one-time extrusion molding of a corrugated plate component, characterized in that, Based on the molding apparatus according to any one of claims 1 to 9, the molding method includes the following steps: The metal sheet to be processed is placed on top of the lower die structure, and the horizontal spacing adjustment structure, the vertical guide support structure, the upper die structure and the lower die structure are in their initial positions. The vertical guide support structure drives the upper mold structure to move downward. When the bottom of the upper mold structure contacts the metal sheet to be processed, the pre-pressing and positioning of the metal sheet to be processed is completed, and the metal sheet to be processed is kept in a stable position before forming. After pre-pressing and positioning are completed, the vertical guide support structure continues to drive the upper pressing mold structure to move downward, causing the metal sheet to be processed to bend and deform between the upper pressing mold structure and the lower pressing mold structure to form a pre-made corrugated plate; at the same time, the horizontal spacing adjustment structure transmits the horizontal force to the upper pressing mold structure and the lower pressing mold structure, so that the upper pressing mold structure and the lower pressing mold structure can adjust the corrugation spacing of the corrugated plate; When the vertical guide support structure moves to the preset forming position and the horizontal spacing adjustment structure moves to the corresponding horizontal spacing position, the upper pressing mold structure and the lower pressing mold structure work together to form the metal sheet to be processed into a wave plate component with multiple continuous wave units in one step. After the molding is completed, the vertical guide support structure moves in the opposite direction, causing the upper mold structure to move upward, and the horizontal spacing adjustment structure gradually resets.

Images