Fiberboard hot-pressing and punching integrated forming device for automobile

Abstract

The application provides a fiberboard hot-pressing and punching integrated forming device for automobiles, and belongs to the technical field of fiberboard forming for automobiles. In view of the problem of poor quality of the integrated forming of hot-pressing and punching of fiberboard for automobiles, the application provides a fiberboard hot-pressing and punching integrated forming device for automobiles, which comprises an upper die seat and a lower die seat, the upper die seat is provided with a hot-pressing female die and a plurality of first punching mechanisms, and the lower die seat is provided with a hot-pressing male die and a plurality of auxiliary mechanisms; when the integrated forming device is in a hot-pressing state, the first punching mechanisms and the auxiliary mechanisms are movable and form a second forming area therebetween, and the second forming area is below a first forming area of a first edge formed by the hot-pressing female die and the hot-pressing male die. The application can realize hot-pressing and punching forming of the edge end face of the fiberboard for automobiles, and the forming quality is good.

Description

Technical Field

[0001] This application relates to the field of automotive fiberboard molding technology, and more particularly to an integrated hot-pressing and punching molding apparatus for automotive fiberboard. Background Technology

[0002] In the traditional fiberboard production process, hot pressing and punching are two independent processes.

[0003] The hot pressing process involves placing pre-treated baked sheet material into a hot press mold, applying high pressure through hot pressing equipment to tightly bond the internal fiber structure of the sheet material, thereby pressing it into the shape of the product. However, the edge quality of products formed by hot pressing often fails to meet the requirements of high-precision production.

[0004] The punching process mainly addresses the dimensional inaccuracies and irregular edges of products after hot pressing. It involves secondary processing using punching dies and equipment to remove excess material and achieve the specified accuracy standards.

[0005] This traditional step-by-step processing model has many drawbacks:

[0006] Firstly, companies need to purchase and maintain two separate sets of molds and equipment, one for hot pressing and the other for punching, which significantly increases equipment purchase costs, installation and commissioning costs, and subsequent maintenance costs.

[0007] Secondly, each process requires handling and clamping of the product, which not only consumes a lot of manpower but also significantly prolongs the production cycle and reduces production efficiency.

[0008] Third, the multiple process changes and operations greatly increase the risk of product damage, deformation and other quality problems, affecting the overall quality of the product.

[0009] Currently, integrated hot pressing and punching forming devices have also emerged, which do not require product transfer and can directly punch after hot pressing. However, their forming quality is poor, especially the forming quality of the product edges. Summary of the Invention

[0010] The purpose of this application is to solve the problem of poor quality in the existing technology of hot pressing and punching integrated forming of automotive fiberboard. Therefore, this application provides an integrated hot pressing and punching forming device for automotive fiberboard. Through the layout design of the hot pressing mold and the cooperation of the first punching mechanism and auxiliary mechanism, the device achieves hot pressing and punching forming of the edge end face of automotive fiberboard, and the forming quality is relatively good.

[0011] This application provides an integrated hot-pressing and punching forming device for automotive fiberboard. The automotive fiberboard includes a first edge that curves downward. The integrated forming device includes an upper die base and a lower die base. The upper die base is provided with a hot-pressing die and a plurality of first punching mechanisms. The lower die base is provided with a hot-pressing punch and a plurality of auxiliary mechanisms.

[0012] Each of the first punching mechanisms can move relative to the hot pressing die, and each of the auxiliary mechanisms can move relative to the hot pressing punch;

[0013] When the integrated molding device is in a hot-press state, the first punching mechanism and the auxiliary mechanism are movable, forming a second molding area between them. The second molding area is connected to the first molding area below the first molding area formed by the hot-pressing die and the hot-pressing punch forming the first edge. Furthermore, the side of the first punching mechanism used to form the second molding area is connected to the side of the hot-pressing die used to form the first molding area, and the side of the auxiliary mechanism used to form the second molding area is connected to the side of the hot-pressing punch used to form the first molding area.

[0014] In some embodiments, the side of the first punching mechanism used to form the second forming area extends in the same direction as the side of the hot pressing die used to form the first forming area, and the side of the auxiliary mechanism used to form the second forming area extends in the same direction as the side of the hot pressing punch used to form the first forming area.

[0015] In some embodiments, when the integrated molding device is in a punching state, the auxiliary mechanism can be moved to expand the second molding area along the punching direction of the first punching mechanism and form a first blanking space. The first punching mechanism can be moved to punch the remaining material in the second molding area and form the end face of the first edge, and push the punching remaining material into the first blanking space.

[0016] In some embodiments, the hot-pressing punch includes a punch body and a first edge forming portion protruding from the punch body, and the auxiliary mechanism is vertically movable relative to the first edge forming portion; and...

[0017] When the integrated molding device is in a hot-press state, the auxiliary mechanism can rise and approach the first edge molding part, and form the second molding area with the first punching mechanism;

[0018] When the integrated molding device is in the punching state, the auxiliary mechanism can descend away from the first edge molding part and form the first material dropping space.

[0019] In some embodiments, the auxiliary mechanism includes a stop and a stop drive;

[0020] The driving end of the stop block drive is connected to the stop block and drives the stop block to rise and fall vertically, so that the stop block can rise and approach the first edge forming part, and the side of the stop block is connected to the side of the first edge forming part and extends in the same direction.

[0021] In some embodiments, the automotive fiberboard further includes a second edge, and a plurality of through holes extending through the thickness direction of the automotive fiberboard are provided near the second edge;

[0022] The upper mold base is provided with a second punching mechanism corresponding to each of the plurality of through holes. The second punching mechanism is used to punch out the through holes.

[0023] In some embodiments, the second punching mechanism includes a second drive member and a punching rod;

[0024] The second driving member is used to drive the punching rod down when the hot pressing die and the hot pressing punch are closed, so as to punch and form the through hole, and to drive the punching rod back to its original position when the die is closed.

[0025] In some embodiments, the end face of the second edge extends vertically;

[0026] The hot pressing die is fixed with a plurality of second cutters corresponding to the second edge, and the lower die base is provided with a second blanking space vertically downwards corresponding to the plurality of second cutters;

[0027] The plurality of second cutters are used to punch and shape the end face of the second edge simultaneously with the closing of the hot pressing die and the hot pressing punch, and to push the punching residue into the second blanking space.

[0028] In some embodiments, the upper die base is provided with a plurality of pressing mechanisms near the second edge. The pressing mechanisms can be raised and lowered relative to the hot pressing die and are used to press against the automotive fiberboard when the hot pressing die and the hot pressing punch are separated after the hot pressing is completed.

[0029] In some embodiments, the automotive fiberboard further includes a third edge connecting the first edge and the second edge, the end face of the third edge being vertically downward;

[0030] The upper die base is also provided with a third punching mechanism corresponding to the third edge, and the lower die base is provided with a third blanking space vertically downwards corresponding to the third punching mechanism;

[0031] The third punching mechanism and the first punching mechanism are designed such that one punches and returns to its original position before the other punches.

[0032] Beneficial effects:

[0033] This application integrates hot pressing and punching into one unit, which is beneficial for achieving energy conservation and environmental protection in the molding process of automotive fiberboard, while also improving molding quality. Specifically, the automotive fiberboard is formed by the cooperation of an upper hot pressing die and a lower hot pressing punch, allowing the first edge forming direction to be vertically downward, thus facilitating subsequent punching and blanking, and ensuring the molding quality of the first edge. Furthermore, a second forming area is formed by an auxiliary mechanism and a first punching mechanism, which connects with the first forming area to achieve a certain degree of hot pressing on the blank located outside the first forming area, making the blank at this location thinner and harder, thus facilitating subsequent punching and improving the flatness of the punched end face, i.e., improving the end face forming quality of the first edge. At the same time, the connection between the second forming area and the first forming area is such that both sides are in contact, thus ensuring a certain continuity in the hot pressing deformation direction of the blank at the junction of the first and second forming areas, that is, the fiber extension direction at the end of the first edge is smooth and will not produce large bends, thereby further improving the molding quality of the first edge.

[0034] Other features and corresponding beneficial effects of this application will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in this application. Attached Figure Description

[0035] Figure 1 This is a structural schematic diagram of the automotive fiberboard to which this application applies;

[0036] Figure 2 This is a structural schematic diagram of the automotive fiberboard to which this application applies from another angle;

[0037] Figure 3 This is a schematic diagram of the integrated molding apparatus of this application;

[0038] Figure 4 This is a schematic diagram of the upper mold base of the integrated molding device of this application;

[0039] Figure 5 This is a schematic diagram of the lower mold base of the integrated molding device of this application;

[0040] Figure 6 This is a partial structural schematic diagram of the integrated molding device of this application;

[0041] Figure 7 This is a partial cross-sectional structural diagram of this application;

[0042] Figure 8 This is a schematic diagram of the structure of the first punching mechanism of this application;

[0043] Figure 9 This is a schematic diagram of the auxiliary mechanism of this application;

[0044] Figure 10 This is a schematic diagram of the structure of the second punching mechanism of this application;

[0045] Figure 11 This is a schematic diagram of the structure of the second cutter and the hot pressing die after assembly in this application;

[0046] Figure 12 This is a schematic diagram of the anti-pressure mechanism of this application;

[0047] Figure 13 This is a schematic diagram of the third punching mechanism of this application.

[0048] Explanation of reference numerals in the attached figures:

[0049] 10. Automotive fiberboard; 11. First edge; 12. Second edge; 13. Through hole; 14. Third edge;

[0050] 100. Upper mold base; 110. Hot pressing die; 111. First forming area;

[0051] 200. Lower die holder; 210. Hot pressing punch; 211. Punch body; 212. First edge forming part;

[0052] 300, First punching mechanism; 301, Second forming area; 310, First driving component; 320, First tool holder; 321, Guide block; 330, First cutting blade;

[0053] 410. Stop block; 420. Stop block drive component;

[0054] 500. Second punching mechanism; 510. Second driving component; 520. Punching rod;

[0055] 600. Second cutter; 610. Pressing mechanism; 611. Pressing block; 612. Pressing drive component;

[0056] 700, Third punching mechanism; 710, Third driving component; 720, Connecting rod; 730, Third cutter. Detailed Implementation

[0057] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with preferred embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0058] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0059] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] The hot pressing process typically begins by preparing a blank according to the product shape. The blank is usually relatively flat compared to the product (the blank thickness is usually 1.5-2 times the thickness of the product to be formed, and the edges usually protrude about 30mm beyond the edge of the product). Through the hot pressing process, the blank softens and deforms under heat, fitting it to the mold, and the upper and lower molds press it down, causing the blank to thin out in the thickness direction and form concave and convex shapes in various positions. After cooling, the hot-pressed blank is then punched to remove excess material from the edges, resulting in the final shape.

[0061] However, the two processes mentioned above usually require two pieces of equipment, which is costly. Furthermore, the slab needs to be transferred between the equipment, which further complicates the process, reduces efficiency, wastes resources, and easily damages the slab.

[0062] Currently, integrated hot pressing and punching forming devices have emerged. However, since the edge shape of products is usually quite complex, there are usually many hot pressing and punching components concentrated in this area. The limited space at the edge of the mold makes it difficult for the hot pressing and punching components to be fully adapted to the forming requirements as separate hot pressing and punching equipment. In other words, current integrated hot pressing and punching forming devices cannot take into account both hot pressing quality and punching quality, resulting in poor edge forming effect.

[0063] Please see Figures 1-2 , Figure 1 This is a schematic diagram of the structure of the automotive fiberboard 10 to which this application applies; Figure 2 This is a structural schematic diagram of the automotive fiberboard 10 to which this application applies from another angle.

[0064] The automotive fiberboard 10 is nearly triangular in shape and includes a first edge 11 and a second edge 12.

[0065] The first edge 11 curves downwards, and its end face is nearly horizontal.

[0066] The second edge 12 has a complex shape with multiple concave and convex structures, and its end face extends vertically.

[0067] Near the second edge 12, there are also a plurality of through holes 13 that penetrate the thickness direction of the automotive fiberboard 10.

[0068] The edge of this type of automotive fiberboard 10 is formed using conventional methods, but the forming quality of its edge end face is poor.

[0069] For this purpose, please see Figures 3-7 , Figure 3 This is a schematic diagram of the integrated molding apparatus of this application; Figure 4 This is a schematic diagram of the upper mold base 100 of the integrated molding device of this application; Figure 5 This is a schematic diagram of the lower mold base 200 of the integrated molding device of this application; Figure 6This is a partial structural schematic diagram of the integrated molding device of this application; Figure 7 This is a partial cross-sectional structural diagram of this application.

[0070] This application provides an integrated hot-pressing and punching forming device for automotive fiberboard. By integrating hot-pressing and punching, the two processes of hot pressing and punching can be combined. Only one set of equipment is needed to complete the production, which greatly reduces equipment investment and maintenance costs. At the same time, the simplified process reduces the use of manpower, lowers production costs, and the process combination is more energy-efficient and environmentally friendly.

[0071] Moreover, the integrated process achieves seamless connection between hot pressing and punching, eliminating the time spent on process conversion and product handling in traditional processes, greatly shortening the production cycle, significantly improving production efficiency, and better meeting the market's demand for bulk products.

[0072] In addition, the integrated process can reduce the number of times the product is handled and clamped during process changes, effectively reducing the risk of quality problems such as damage and deformation caused by repeated operations, thereby improving the dimensional accuracy and edge quality of the product.

[0073] Specifically, this integrated molding device includes an upper mold base 100 and a lower mold base 200.

[0074] The upper mold base 100 is provided with a hot pressing die 110, and the lower mold base 200 is provided with a hot pressing punch 210. After the hot pressing die 110 and the hot pressing punch 210 are closed, they form a fiberboard 10 for automobiles. That is, the entire mold cavity is bent downward, so that the forming direction of the first edge 11 can be vertically downward, which facilitates subsequent punching and blanking, and ensures the forming quality of the first edge 11.

[0075] The upper die holder 100 is also equipped with multiple first punching mechanisms 300, and the lower die holder 200 is also equipped with multiple auxiliary mechanisms.

[0076] Each of the first punching mechanisms 300 can move relative to the hot pressing die 110, and each of the auxiliary mechanisms can move relative to the hot pressing punch 210.

[0077] When the integrated molding device is in a hot-pressing state, the first punching mechanism 300 and the auxiliary mechanism are movable, forming a second molding area 301 between them. The second molding area 301 is connected to the first molding area 111 below the hot-pressing die 110 and the hot-pressing punch 210 forming the first edge 11. That is, the second molding area 301 is connected and cooperates with the first molding area 111, so that the blank located outside the first molding area 111 is immediately subjected to a certain degree of hot pressing, which makes the blank at this position thinner and harder, thereby facilitating subsequent punching and improving the flatness of the punched end face, that is, improving the end face forming quality of the first edge 11.

[0078] Preferably, the side of the first punching mechanism 300 used to form the second forming area 301 is connected to the side of the hot pressing die 110 used to form the first forming area 111, and the side of the auxiliary mechanism used to form the second forming area 301 is connected to the side of the hot pressing punch 210 used to form the first forming area 111. That is, the connection between the second forming area 301 and the first forming area 111 is such that both sides are connected, so that the second forming area 301 and the first forming area 111 are completely corresponding rather than misaligned. This makes the hot pressing deformation direction of the blank at the junction of the first forming area 111 and the second forming area 301 have a certain continuity, that is, the fiber extension direction at the end of the first edge 11 is smooth and will not produce large bends, thereby further improving the forming quality of the first edge 11.

[0079] Furthermore, the side of the first punching mechanism 300 used to form the second forming area 301 extends in the same direction as the side of the hot pressing die 110 used to form the first forming area 111. The side of the auxiliary mechanism used to form the second forming area 301 extends in the same direction as the side of the hot pressing punch 210 used to form the first forming area 111. This makes the second forming area 301 and the first forming area 111 smoothly connected, so that the edge fiber compression ratio and the pressure direction are smooth, further improving the forming quality of the first edge 11.

[0080] In one embodiment, when the integrated molding device is in the punching state, the auxiliary mechanism can move to expand the second molding area 301 along the punching direction of the first punching mechanism 300 and form a first blanking space. The first punching mechanism 300 can move to punch the excess material in the second molding area 301 and form the end face of the first edge 11, and push the punching excess material into the first blanking space, thereby realizing punching and blanking, ensuring the quality of the end face of the first edge 11, and preventing the first punching mechanism 300 from impacting and damaging the auxiliary mechanism.

[0081] In one embodiment, the hot pressing pressure of the hot pressing die 110 and the hot pressing punch 210 is 15MPa - 30MPa, and the hot pressing time is 30s - 60s.

[0082] The punching pressure of the first punching mechanism 300 is 15MPa - 25MPa.

[0083] This method can balance the molding quality and production efficiency of automotive fiberboard 10.

[0084] Please see Figure 8 , Figure 8 This is a schematic diagram of the structure of the first punching mechanism 300 of this application.

[0085] In one embodiment, the first punching mechanism 300 includes a first drive member 310, a first blade holder 320, and a first cutter 330.

[0086] The first driving component 310 is a hydraulic cylinder, and the driving end of the first driving component 310 is connected to the first cutter holder 320, on which a first cutting blade 330 is provided. By using a hydraulic cylinder as the first driving component 310, it is possible to ensure that the punching force is suitable for the automotive fiberboard 10, thereby improving the punching quality of the end face of the first edge 11 of the automotive fiberboard 10.

[0087] Preferably, the first cutter 330 has a first thickness and is used to form a second forming region 301 with the auxiliary mechanism.

[0088] In one embodiment, the upper die holder 100 is provided with a guide groove, and the first cutter holder 320 is connected to a guide block 321. The guide block 321 is slidably disposed in the guide groove, so that the first cutter holder 320 drives the first cutter 330 to move along the guide groove, thereby improving the accuracy of the punching position of the first cutter 330 and further improving the punching quality of the end face of the first edge 11 of the automotive fiberboard 10. At the same time, it can also ensure the accuracy of the movement of the first cutter 330 and prevent it from impacting and damaging the hot pressing die 110.

[0089] In one embodiment, the hot pressing punch 210 includes a punch body 211 and a first edge forming part 212 protruding from the punch body 211, and the auxiliary mechanism can be vertically raised and lowered relative to the first edge forming part 212.

[0090] When the integrated molding device is in a hot-pressing state, the auxiliary mechanism can rise and approach the first edge molding part 212, and form a second molding area 301 with the first punching mechanism 300.

[0091] When the integrated molding device is in the punching state, the auxiliary mechanism can descend away from the first edge molding part 212 and form the first material dropping space.

[0092] Preferably, the first cutter 330 has a cutting surface and a guide surface. The cutting surface and the stop block 410 form a second forming area 301. The guide surface is in contact with the cutting surface and is inclined toward the side away from the stop block 410.

[0093] The auxiliary mechanism descends a first distance to form the first material drop space.

[0094] The length of the cutting surface and the first distance are both less than the length of the blank (i.e. the scrap) in the second forming area 301, so that the upper part of the punched scrap is pushed into the first blanking space by the first cutter 330, so that the scrap is completely separated from the forming blank. At the same time, the lower part of the scrap is tilted by the stop block 410 and slides down along the guide surface of the first cutter 330 to the side away from the hot pressing punch 210 and the auxiliary mechanism, so as to avoid the scrap getting stuck between the hot pressing punch 210 and the auxiliary mechanism, which is convenient for cleaning.

[0095] Please see Figure 9 , Figure 9 This is a schematic diagram of the auxiliary mechanism of this application.

[0096] In one embodiment, the auxiliary mechanism includes a stop 410 and a stop drive 420.

[0097] The drive end of the stop block drive 420 is connected to the stop block 410 and drives the stop block 410 to rise and fall vertically, so that the stop block 410 can rise and approach the first edge forming part 212, and the side of the stop block 410 is connected to the side of the first edge forming part 212 and extends in the same direction, thereby improving the hot pressing forming quality.

[0098] It should be noted that hot press molds are relatively expensive. To prevent the stop 410 from impacting and damaging the hot press punch 210, the lifting and lowering of the stop 410 needs to be controlled at a minimum distance from the hot press punch 210. In one embodiment, this distance is 0.2 mm. This optimal gap distance was obtained through multiple tests, achieving both protection and ensuring the quality of hot press forming.

[0099] In one embodiment, the upper mold base 100 is provided with a second punching mechanism 500 corresponding to each of the multiple through holes 13. The second punching mechanism 500 is used to punch out the through holes 13.

[0100] Please see Figure 10 , Figure 10 This is a schematic diagram of the structure of the second punching mechanism 500 of this application.

[0101] In one embodiment, the second punching mechanism 500 includes a second drive member 510 and a punching rod 520.

[0102] The second drive component 510 is used to drive the punching rod 520 down when the hot pressing die 110 and the hot pressing punch 210 are closed, so as to punch and form the through hole 13, and to drive the punching rod 520 back to its original position when the die is closed.

[0103] That is, the second punching mechanism 500 punches and returns to the automotive fiberboard 10 when the mold is closed. The clamping of the automotive fiberboard 10 by the mold can be used to prevent the punching rod 520 from sticking and causing the automotive fiberboard 10 to move when it rises away from the automotive fiberboard 10, which would affect the molding quality.

[0104] It is understandable that when multiple through holes 13 are close together, the same second punching mechanism 500 can be used for punching to control costs. In this case, only the corresponding number of punching rods 520 need to be set.

[0105] To ensure the quality of punching, it is preferable that the second punching mechanism 500 is equipped with 1-3 punching rods 520.

[0106] In one embodiment, the punching bar 520 includes a guide end and a bar portion disposed below the guide end.

[0107] A guide seat is provided below the second driving member 510. The guide end is connected to the driving end of the second driving member 510 and is located inside the guide seat. The guide seat and the guide end are provided with matching guide structures, such as guide groove and slider, or bow-shaped cross section, so that the rod can punch vertically downward and improve the punching quality at this position.

[0108] Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of the second cutter 600 and the hot pressing die 110 after assembly.

[0109] In one embodiment, the hot pressing die 110 is fixed with a plurality of second cutters 600 corresponding to the second edge 12, and the lower die base 200 is provided with a second blanking space vertically downward corresponding to the plurality of second cutters 600.

[0110] Multiple second cutters 600 are used to punch and shape the end face of the second edge 12 simultaneously with the closing of the hot pressing die 110 and the hot pressing punch 210, and push the punching residue into the second blanking space.

[0111] This method simplifies the structure by using a second cutter 600 fixed to the hot-pressing die 110 to punch synchronously with the die closing, eliminating the need for a driving component and improving the compactness of the device. In particular, a second punching mechanism 500 for forming the through hole 13 is provided near the second edge 12. This second punching mechanism 500 already occupies most of the space in that position of the upper die base 100, leaving very limited space. However, this device forms the second edge 12 using the second cutter 600, eliminating the need for a driving component and greatly controlling the volume. This allows for the formation of both the second edge 12 and the through hole 13 while maintaining a small overall device size.

[0112] It should be noted that the second cutter 600 may stick to the automotive fiberboard 10. When the mold separates, the second cutter 600 will move the automotive fiberboard 10 as it rises with the hot pressing die 110, thus affecting the molding quality.

[0113] Therefore, in one embodiment, the upper die base 100 is provided with a plurality of pressing mechanisms 610 near the second edge 12. The pressing mechanisms 610 can be raised and lowered relative to the hot pressing die 110 and are used to press the automotive fiberboard 10 when the hot pressing die 110 and the hot pressing punch 210 are separated after the hot pressing and punching is completed, so as to ensure that the automotive fiberboard 10 does not move.

[0114] When the mold separates, the pressing mechanism 610 remains stationary (during hot pressing, the pressing mechanism 610 and the hot pressing die 110 descend synchronously to ensure the integrity of the forming surface of the hot pressing die 110), pressing against the automotive fiberboard 10; after the mold separates, the pressing mechanism 610 rises again to detach from the automotive fiberboard 10, so that the automotive fiberboard 10 can be removed from the mold.

[0115] Please see Figure 12 , Figure 12 This is a schematic diagram of the anti-pressure mechanism 610 of this application.

[0116] In one embodiment, the pressing mechanism 610 includes a pressing block 611 and a pressing drive member 612 connected to the pressing block 611. The pressing block 611 can be raised and lowered relative to the hot pressing die 110 under the drive of the pressing drive member 612.

[0117] It is understood that the shape of the pressing surface (i.e. the bottom surface) of the pressing block 611 of the pressing mechanism 610 set in different positions is adapted to the surface of the hot pressing die 110 at the corresponding position, thereby ensuring the integrity of the corresponding forming surface of the hot pressing die 110 and sufficient contact with the automotive fiberboard 10 at that position.

[0118] It should be noted that the first edge 11 curves downwards, meaning its end face is nearly horizontal, while the end face of the second edge 12 is vertically downwards, meaning their end faces are nearly perpendicular. The first edge 11 is formed by the first punching mechanism 300, and the second edge 12 is formed by the second cutter 600. When the first edge 11 and the second edge 12 come into contact, since the second cutter 600 is fixed on the hot press die 110, the cutting edges of the two cutters are prone to collision and damage during the punching process of the first cutter 330.

[0119] Therefore, in one embodiment, a third edge 14 is separated at the junction of the second edge 12 and the first edge 11 of the automotive fiberboard 10, that is, the third edge 14 connects the first edge 11 and the second edge 12, and the end face of the third edge 14 is vertically downward.

[0120] The upper die holder 100 is provided with a third punching mechanism 700 corresponding to the third edge 14, and the lower die holder 200 is provided with a third blanking space vertically downwards corresponding to the third punching mechanism 700.

[0121] The third punching mechanism 700 and the first punching mechanism 300 work together so that one punches and returns to its original position before the other punches, thus avoiding collision and damage between the cutting edges of the two mechanisms.

[0122] Please see Figure 13 , Figure 13 This is a schematic diagram of the third punching mechanism 700 of this application.

[0123] In one embodiment, the third punching mechanism 700 includes a third drive member 710, a connecting rod 720, and a third cutter 730.

[0124] The third driving component 710 is a hydraulic cylinder. The driving end of the third driving component 710 is connected to a connecting rod 720, and the connecting rod 720 is connected to a third cutter 730. The third cutter 730 is used to punch and form the end face of the third edge 14 and push the punching residue into the third blanking space. By using a hydraulic cylinder as the third driving component 710, it is possible to ensure that the punching force is suitable for the automotive fiberboard 10, thereby improving the punching quality of the end face of the third edge 14 of the automotive fiberboard 10.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A thermoforming and punching integrated forming apparatus for automotive fiberboard, wherein the automotive fiberboard includes a downwardly curved first edge, characterized in that... The integrated molding device includes an upper mold base and a lower mold base. The upper mold base is provided with a hot pressing die and multiple first punching mechanisms, and the lower mold base is provided with a hot pressing punch and multiple auxiliary mechanisms. Each of the first punching mechanisms can move relative to the hot pressing die, and each of the auxiliary mechanisms can move relative to the hot pressing punch; When the integrated molding device is in a hot-press state, the first punching mechanism and the auxiliary mechanism are movable, forming a second molding area between them. The second molding area is connected to the first molding area below the first molding area formed by the hot-pressing die and the hot-pressing punch forming the first edge. Furthermore, the side of the first punching mechanism used to form the second molding area is connected to the side of the hot-pressing die used to form the first molding area, and the side of the auxiliary mechanism used to form the second molding area is connected to the side of the hot-pressing punch used to form the first molding area.

2. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 1, characterized in that, The side of the first punching mechanism used to form the second forming area extends in the same direction as the side of the hot pressing die used to form the first forming area, and the side of the auxiliary mechanism used to form the second forming area extends in the same direction as the side of the hot pressing punch used to form the first forming area.

3. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 1, characterized in that, When the integrated molding device is in the punching state, the auxiliary mechanism can move to expand the second molding area along the punching direction of the first punching mechanism and form a first blanking space. The first punching mechanism can move to punch the remaining material in the second molding area and form the end face of the first edge, and push the punching remaining material into the first blanking space.

4. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 3, characterized in that, The hot-pressing punch includes a punch body and a first edge forming portion protruding from the punch body; the auxiliary mechanism can be vertically raised and lowered relative to the first edge forming portion; and... When the integrated molding device is in a hot-press state, the auxiliary mechanism can rise and approach the first edge molding part, and form the second molding area with the first punching mechanism; When the integrated molding device is in the punching state, the auxiliary mechanism can descend away from the first edge molding part and form the first material dropping space.

5. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 4, characterized in that, The auxiliary mechanism includes a stop block and a stop block drive component; The driving end of the stop block drive is connected to the stop block and drives the stop block to rise and fall vertically, so that the stop block can rise and approach the first edge forming part, and the side of the stop block is connected to the side of the first edge forming part and extends in the same direction.

6. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 1, characterized in that, The automotive fiberboard also includes a second edge, and a plurality of through holes penetrating the thickness direction of the automotive fiberboard are provided near the second edge; The upper mold base is provided with a second punching mechanism corresponding to each of the plurality of through holes, and the second punching mechanism is used to punch out the through holes.

7. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 6, characterized in that, The second punching mechanism includes a second driving member and a punching rod; The second driving member is used to drive the punching rod down when the hot pressing die and the hot pressing punch are closed, so as to punch and form the through hole, and to drive the punching rod back to its original position when the die is closed.

8. The integrated hot-pressing and punching forming device for automotive fiberboard according to claim 7, characterized in that, The end face of the second edge extends vertically; The hot pressing die is fixed with a plurality of second cutters corresponding to the second edge, and the lower die base is provided with a second blanking space vertically downwards corresponding to the plurality of second cutters; The plurality of second cutters are used to punch and shape the end face of the second edge simultaneously with the closing of the hot pressing die and the hot pressing punch, and to push the punching residue into the second blanking space.

9. The integrated hot-pressing and punching forming apparatus for automotive fiberboard according to claim 8, characterized in that, The upper die base is provided with a plurality of pressing mechanisms near the second edge. The pressing mechanisms can be raised and lowered relative to the hot pressing die and are used to press the automotive fiberboard when the hot pressing die and the hot pressing punch are separated after the hot pressing is completed.

10. The integrated hot-pressing and punching forming apparatus for automotive fiberboard according to claim 8, characterized in that, The automotive fiberboard also includes a third edge connecting the first edge and the second edge, the end face of the third edge being vertically downward; The upper die base is also provided with a third punching mechanism corresponding to the third edge, and the lower die base is provided with a third blanking space vertically downwards corresponding to the third punching mechanism; The third punching mechanism and the first punching mechanism are designed such that one punches and returns to its original position before the other punches.

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