Vehicle structure part hot press molding device

Abstract

The invention discloses a vehicle structure part hot-press forming device which comprises a moving seat, a first linear motor, a second linear motor, a second linear motor and a hot-press forming device, the moving seat is slidably arranged on the first linear motor of a workbench, and a feeding area and a discharging area are arranged on the side face of the moving seat; the feeding mechanism is arranged between the first linear motor and the feeding area; the movable lower die is driven to be arranged on the movable seat in an overturning manner; the lifting upper die is arranged above the first linear motor in a lifting mode through driving of an air cylinder, a second butt joint groove is formed in the bottom of the lifting upper die, a pressing head is arranged in the second butt joint groove, an arc-shaped elastic pressing plate is arranged on a guide seat of the pressing head in a sliding mode, and an airflow channel communicated with the second butt joint groove is formed in the pressing head. By means of the design, continuous automatic production of feeding, pressing and flattening of a film structure on an automobile part, stable hot-pressing film covering, cooling, demolding and discharging can be achieved, and the production efficiency and the hot-pressing forming film covering machining quality are improved.

Description

Technical Field

[0001] This invention relates to the field of hot pressing forming equipment technology, specifically a hot pressing forming equipment for vehicle structural parts. Background Technology

[0002] The coating process for protective films on automotive parts and other film structures is generally achieved through thermoforming equipment. The specific process involves: first, loading the automotive parts and the film structure; then, performing a thermoforming operation to melt and bond the adhesive surface of the film structure to the surface of the automotive parts; finally, cooling and unloading the automotive parts. However, existing thermoforming equipment cannot achieve continuous loading, thermoforming, and unloading operations. Manual assistance is generally required for structure positioning and finished product removal, resulting in low production efficiency. During coating, the automotive parts and film structure may not adhere tightly, leaving air gaps that affect the coating's tightness and easily lead to quality defects such as bubbles. Incomplete heating of the film structure results in insufficient melting of the adhesive surface, leading to weak adhesion and uneven surfaces. Furthermore, unloading the finished product after thermoforming is inconvenient. Therefore, the quality of thermoforming coating is poor. Summary of the Invention

[0003] The purpose of this invention is to provide a hot pressing device for vehicle structural parts in order to solve the problems of low production efficiency and poor processing quality of existing hot pressing molding devices for coating the surface of automotive parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hot pressing forming apparatus for vehicle structural components, comprising:

[0005] The movable seat is slidably mounted on the first linear motor of the worktable, and its side is provided with a loading area and a unloading area;

[0006] The feeding mechanism is located between the first linear motor and the feeding area;

[0007] The movable lower mold is driven to flip and is mounted on the movable seat;

[0008] The upper lifting mold is driven by a cylinder and is positioned above the first linear motor. A second docking groove is opened at its bottom, and a pressure head is set in the second docking groove. An arc-shaped elastic pressure plate is slidably set on the guide seat of the pressure head. An airflow channel communicating with the second docking groove is provided on the pressure head.

[0009] As a further description of the above technical solution:

[0010] The positioning column of the feeding mechanism is positioned on the worktable. The swing beam is driven to rotate on the positioning column by the second servo motor. A second linear motor is set in the length direction of the beam. The slide is slidably set on the second linear motor. An electric cylinder is assembled at the bottom of the slide. The output end of the electric cylinder is connected to the material picking structure.

[0011] As a further description of the above technical solution:

[0012] The bottom of the material handling structure is equipped with several suction nozzles for connecting to external vacuum generating devices.

[0013] As a further description of the above technical solution:

[0014] The movable lower mold includes a flip base plate and a lower mold body (52). The top of the lower mold body (52) has a first docking groove corresponding to the pressure head, and a limiting barrier is provided in the first docking groove.

[0015] As a further description of the above technical solution:

[0016] The side of the flip-up substrate is connected to the rotating shaft via an extension block, and the rotating shaft is connected to the output end of the first servo motor on the moving base.

[0017] As a further description of the above technical solution:

[0018] The inner sidewall of the first docking groove has a slot for insertion into the end of the elastic pressure plate, and the outer end of the slot gradually expands outward to form a wedge-shaped surface.

[0019] As a further description of the above technical solution:

[0020] The bottom of the pressure head has a groove, and a partition extends downward from the inner side of the groove. The partition divides the groove to form a U-shaped airflow channel. One end of the airflow channel is connected to an external airflow supply device through an air intake channel, and the other end is connected to an external airflow recovery device through an exhaust channel.

[0021] As a further description of the above technical solution:

[0022] The end of the elastic pressure plate is provided with a number of toothed inserts, which move through the corresponding insertion holes of the guide seat.

[0023] As a further description of the above technical solution:

[0024] The side sliding dock of the upper lifting mold with the vertical guide rail on the worktable.

[0025] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0026] The vehicle structural component hot pressing forming apparatus of the present invention is used for hot pressing forming and coating of automotive parts and protective films and other film structures on their surfaces. In use, the loading mechanism places the automotive parts and film structures sequentially into the movable lower mold in the loading area; a first linear motor drives the movable lower mold to move below the lifting upper mold, and a cylinder drives the lifting upper mold to move downwards, completing the mold closing operation with the movable lower mold. During this process, the bottom protrusion of the elastic pressure plate first contacts the middle of the film structure. As the mold closing process continues, the elastic pressure plate is deformed under pressure and gradually flattens, pushing the film structure to flatten it and tightly adhere it to the surface of the automotive part, ensuring a tight hot pressing bond in the subsequent process; a high-temperature airflow is introduced into the airflow channel to achieve high thermal conductivity... The rapid and uniform heating of the elastic pressure plate ensures the complete melting of the adhesive surfaces where the membrane structure contacts the automotive parts. Pressure applied to the membrane structure by the pressure head and elastic pressure plate achieves thermoforming and lamination. Subsequently, a low-temperature airflow is introduced into the airflow channel to stably cool the elastic pressure plate, absorbing heat from the automotive parts and membrane structure, achieving stable cooling and efficient shaping. Upon mold opening, the elastic pressure plate structure recovers, arches downwards, and detaches from the membrane structure. The movable lower mold is driven to move to the unloading area and flips over, enabling rapid unloading of the laminated automotive parts. This design allows for continuous automated production of loading, pressing and flattening the membrane structure on the automotive parts, stable thermoforming and lamination, cooling, demolding, and unloading, improving production efficiency and the quality of thermoforming and lamination. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This describes the usage state of a hot pressing forming device for vehicle structural components. Figure 1 .

[0029] Figure 2 This is a cross-sectional view of the movable lower mold and the lifting upper mold in a thermoforming device for vehicle structural parts during mold opening.

[0030] Figure 3 This describes the usage state of a hot pressing forming device for vehicle structural components. Figure 2 .

[0031] Figure 4 This describes the usage state of a hot pressing forming device for vehicle structural components. Figure 3 .

[0032] Figure 5 This is a cross-sectional view of the movable lower mold and the lifting upper mold in a hot pressing forming device for vehicle structural parts when the mold is closed.

[0033] Legend:

[0034] 1. Moving seat; 11. First linear motor; 12. First servo motor; 2. Loading area; 3. Loading mechanism; 31. Positioning column; 32. Swinging beam; 33. Second servo motor; 34. Second linear motor; 35. Slide; 36. Electric cylinder; 37. Material handling structure; 4. Unloading area; 5. Movable lower mold; 51. Flipping base plate; 511. Extension block; 512. Rotating shaft; 52. Lower mold body; 521. First docking groove; 522. Slot; 53. Limiting barrier; 6. Lifting upper mold; 61. Cylinder; 62. Second docking groove; 63. Press head; 631. Groove; 632. Partition; 633. Air intake channel; 634. Exhaust channel; 64. Guide seat; 641. Insertion hole; 65. Elastic pressure plate; 651. Insert block; 66. Airflow channel; 67. Vertical guide rail; 100. Automotive parts; 200. Membrane structure. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0037] It should be noted that similar labels 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.

[0038] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, 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 limiting the present invention.

[0039] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Example 1:

[0041] Please see Figure 1-5 The present invention provides a technical solution: a hot pressing forming apparatus for vehicle structural parts, comprising:

[0042] The movable seat 1 is slidably mounted on the first linear motor 11 of the worktable, and the loading area 2 and unloading area 4 are provided on its side;

[0043] The feeding mechanism 3 is disposed between the first linear motor 11 and the feeding area 2;

[0044] The movable lower mold 5 is driven to flip and is mounted on the movable seat 1;

[0045] The upper lifting mold 6 is driven to lift and is positioned above the first linear motor 11 by a cylinder 61. A second docking groove 62 is opened at its bottom. A pressure head 63 is set in the second docking groove 62. An arc-shaped elastic pressure plate 65 is slidably set on the guide seat 64 of the pressure head 63. An airflow channel 66 communicating with the second docking groove 62 is provided on the pressure head 63.

[0046] The vehicle structural component hot pressing forming apparatus of the present invention is used for hot pressing forming and coating processing of automotive parts 100 and film structures 200 such as protective films on their surfaces. In use, the loading mechanism 3 sequentially places the automotive parts 100 and the film structure 200 in the loading area 2 into the movable lower mold 5, such as... Figure 1 , 3 As shown; the first linear motor 11 drives the movable lower mold 5 to move below the lifting upper mold 6, and the cylinder 61 drives the lifting upper mold 6 to move downward, completing the mold closing operation with the movable lower mold 5, as shown. Figure 4As shown, during the process, the bottom protrusion of the elastic pressure plate 65 first contacts the middle of the membrane structure 200. As the mold closing process continues, the elastic pressure plate 65 is deformed under pressure and gradually flattens, pushing the membrane structure 200 to flatten it and tightly adhere it to the surface of the automotive part 100, ensuring a tight hot-press bond in the subsequent process. High-temperature airflow is introduced into the airflow channel 66 to achieve rapid and uniform heating of the highly thermally conductive elastic pressure plate 65, allowing the adhesive surfaces of the membrane structure 200 and the automotive part 100 to fully melt. The pressure applied to the membrane structure 200 by the pressure head 63 and the elastic pressure plate 65 achieves hot-press molding and film coating. Afterwards, low-temperature airflow is introduced into the airflow channel 66 to stably cool the elastic pressure plate 65, absorbing heat from the automotive part 100 and the membrane structure 200, achieving stable cooling and efficient shaping of both. Upon mold opening, the elastic pressure plate 65 recovers its original structure, arches downward, and detaches from the membrane structure 200, as shown in the image. Figure 2 , 5 As shown; the movable lower mold 5 is driven to move to the unloading area 4 and completes its flipping, realizing the rapid unloading of the coated automotive part 100, as shown. Figure 1 As shown. The above design enables continuous automated production of material feeding, pressing and flattening of the membrane structure 200 on the automotive part 100, stable hot pressing and coating, cooling, demolding, and unloading, thereby improving production efficiency and the quality of hot pressing and coating processing.

[0047] The movable lower mold 5 includes a flip base plate 51 and a lower mold body 52. ​​The top of the lower mold body 52 has a first docking groove 521 corresponding to the pressure head 63, and a limiting barrier 53 is provided in the first docking groove 521. Through the multi-layer docking and fitting of the first docking groove 521 with the pressure head 63 and the second docking groove 62 with the movable lower mold 5, the tightness and airtightness of the mold closing can be improved. When the automotive part 100 is placed, the limiting barrier 53 is embedded, which can improve the positioning stability, so as to ensure the stability of subsequent mold opening and closing and the quality of hot pressing.

[0048] The side of the flipping substrate 51 is connected to the rotating shaft 512 via an extension block 511, and the rotating shaft 512 is connected to the output end of the first servo motor 12 on the moving base 1. This improves the stability and efficiency of the flipping drive and unloading of the movable lower mold 5.

[0049] The bottom of the pressure head 63 has a groove 631, and a partition 632 extends downward from the inner side of the groove 631. The partition 632 divides the groove 631 into a U-shaped airflow channel 66. One end of the airflow channel 66 connects to an external airflow supply device through an air inlet channel 633, and the other end connects to an external airflow recovery device through an exhaust channel 634. The aforementioned airflow supply device and airflow recovery device are both existing technologies, used for supplying temperature-controlled airflow and recovering exhaust airflow, respectively. The two can be connected to achieve a circulating airflow supply. Combined with the U-shaped airflow channel 66, high-temperature or low-temperature airflow can be introduced into the internal flow to achieve efficient heat transfer with the elastic pressure plate 65, thereby improving the efficiency of hot pressing and post-forming structure cooling.

[0050] The end of the elastic pressure plate 65 is provided with a plurality of toothed inserts 651, which movably pass through the corresponding insertion holes 641 of the guide seat 64. The inner sidewall of the first mating groove 521 has a slot 522 for insertion into the end of the elastic pressure plate 65, and the outer end of the slot 522 gradually expands outward to form a wedge-shaped surface. This allows for structural guidance of the elastic pressure plate 65 during deformation, improving its operational stability.

[0051] The side sliding dock of the upper lifting mold 6 with the vertical guide rail 67 on the worktable guides the lifting and lowering movement of the upper lifting mold 6, thereby improving the stability of mold opening and closing.

[0052] Example 2:

[0053] Please see Figure 4 The figure shows a hot pressing forming apparatus for vehicle structural parts provided in Embodiment 2 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solutions: The positioning column 31 of the feeding mechanism 3 is positioned on the worktable. The swing beam 32 is driven to rotate on the positioning column 31 by a second servo motor 33. A second linear motor 34 is arranged along the length of the beam. A slide block 35 is slidably mounted on the second linear motor 34. An electric cylinder 36 is mounted at its bottom. The output end of the electric cylinder 36 is connected to the material handling structure 37. The bottom of the material handling structure 37 is provided with several suction nozzles for connecting to external vacuum generators.

[0054] The working principle of the hot pressing molding device for vehicle structural parts in this embodiment includes: during use, the second servo motor 33 drives the swing beam 32 to swing on the positioning column 31 to adjust the orientation of the material picking structure 37, and the second linear motor 34 drives the slide block 35 to extend outward or move inward, thereby realizing the adjustment of the position of the material picking structure 37 on the horizontal plane, so that it moves to the top of the loading area 2 or the movable lower mold 5. With the lifting drive of the electric cylinder 36, the material picking structure 37 can perform adsorption and material picking and unloading operations, thereby improving the flexibility, convenience and efficiency of the loading mechanism 3 in picking and unloading materials.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hot pressing forming apparatus for vehicle structural components, characterized in that, include: The movable seat is slidably mounted on the first linear motor of the worktable, and its side is provided with a loading area and a unloading area; The feeding mechanism is located between the first linear motor and the feeding area; The movable lower mold is driven to flip and is mounted on the movable seat; The upper lifting mold is driven by a cylinder and is positioned above the first linear motor. A second docking groove is opened at its bottom, and a pressure head is set in the second docking groove. An arc-shaped elastic pressure plate is slidably set on the guide seat of the pressure head. An airflow channel communicating with the second docking groove is provided on the pressure head.

2. The hot pressing forming apparatus for vehicle structural components according to claim 1, characterized in that, The positioning column of the feeding mechanism is positioned on the worktable. The swing beam is driven to rotate on the positioning column by the second servo motor. A second linear motor is set in the length direction of the beam. The slide is slidably set on the second linear motor. An electric cylinder is assembled at the bottom of the slide. The output end of the electric cylinder is connected to the material picking structure.

3. The hot pressing forming apparatus for vehicle structural components according to claim 2, characterized in that, The bottom of the material handling structure is equipped with several suction nozzles for connecting to external vacuum generating devices.

4. The hot pressing forming apparatus for vehicle structural components according to claim 1, characterized in that, The movable lower mold includes a flip base plate and a lower mold body (52). The top of the lower mold body (52) has a first docking groove corresponding to the pressure head, and a limiting barrier is provided in the first docking groove.

5. The hot pressing forming apparatus for vehicle structural parts according to claim 4, characterized in that, The side of the flip-up substrate is connected to the rotating shaft via an extension block, and the rotating shaft is connected to the output end of the first servo motor on the moving base.

6. The hot pressing forming apparatus for vehicle structural components according to claim 4, characterized in that, The inner sidewall of the first docking groove has a slot for insertion into the end of the elastic pressure plate, and the outer end of the slot gradually expands outward to form a wedge-shaped surface.

7. The hot pressing forming apparatus for vehicle structural components according to claim 1, characterized in that, The bottom of the pressure head has a groove, and a partition extends downward from the inner side of the groove. The partition divides the groove to form a U-shaped airflow channel. One end of the airflow channel is connected to an external airflow supply device through an air intake channel, and the other end is connected to an external airflow recovery device through an exhaust channel.

8. The hot pressing forming apparatus for vehicle structural components according to claim 1, characterized in that, The end of the elastic pressure plate is provided with a number of toothed inserts, which move through the corresponding insertion holes of the guide seat.

9. The hot pressing forming apparatus for vehicle structural components according to claim 1, characterized in that, The side sliding dock of the upper lifting mold with the vertical guide rail on the worktable.

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