Overturning type demolding mold for large automobile part

Abstract

The invention discloses an overturning type demolding mold for a large automobile part, and relates to the technical field of molds for automobile part machining, the overturning type demolding mold comprises a base and a supporting seat, a rack is fixed above the base, and a lower mold is arranged in an inner cavity of the rack. According to the overturning type demolding mold for the large automobile part, the gear is moved to a designated position and then is in engaged connection with the tooth block for overturning, so that loads can be more uniformly distributed between the gear and the tooth block, local stress concentration is reduced, the fault risk is reduced, and when the lower mold transversely moves, extrusion can be generated between the top frame and the rolling wheels, so that the demolding quality is improved. According to the technical scheme, the jacking mechanism can jack the edge position of the automobile part before the pneumatic jacking assembly jacks materials, so that the automobile part is loosened in advance, the risk that a workpiece adheres to the interior of a die is reduced, the buffering material receiving mechanism can prevent the automobile part from directly falling to the position above the conveying belt assembly from the interior of a higher lower die, and the production efficiency is improved. And the impact of the falling automobile parts is reduced, and the automobile parts are prevented from being collided and damaged.

Description

Technical Field

[0001] The invention relates to the technical field of molds for processing automobile parts, in particular to a turnover demoulding mold for large automobile parts. Background Art

[0002] Auto parts include a large number of components such as covers. When these parts are formed, a large-scale automotive component flip-type demolding mold is used. This type of mold is mainly a cold stamping mold. The molding molds for different automotive parts are diverse, but the main structure is similar, including an upper mold and a lower mold. Usually, the upper mold is installed under the lifting drive mechanism, and the lower mold is fixed in the corresponding lower position. After the upper and lower molds are separated and processed, the upper mold is moved up and separated, and the lower mold is equipped with an additional ejection mechanism to facilitate the loading and unloading and demolding operations of the component molding process.

[0003] However, the existing flip demolding mold for large automobile parts needs to be flipped over to unload the automobile parts after the automobile parts are formed. Usually, rotating shafts are set at both ends of the lower mold, and the rotating shafts are driven by a motor to drive the lower mold to flip. This method increases power consumption, and when the lower mold is directly flipped over to unload, the edge of the automobile part is easily stuck in the lower mold, which increases the burden and wear of the original ejector pin, affects the unloading efficiency, and reduces the working efficiency and practicality of the flip demolding mold for large automobile parts. For this reason, we propose a flip demolding mold for large automobile parts. Summary of the Invention

[0004] The object of the present invention is to provide a flip-type demoulding mold for large automobile parts to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a flip-type demolding mold for large automobile parts, comprising a base and a support base, a frame being fixed above the base, a lower mold being provided in the inner cavity of the frame, a pneumatic ejecting assembly being installed below the lower mold, a supporting plate and a cross bar being fixedly installed on the inner wall of the frame near the bottom of the pneumatic ejecting assembly, the support base being fixed above the cross bar, a roller being installed on the inner side of the support base through a movable shaft, two ends of the lower mold being fixedly connected to a No. 1 rotating shaft and a No. 2 rotating shaft respectively, strip grooves are opened on the inner walls of both sides of the frame, one end of the No. 1 rotating shaft near the strip groove is connected to a moving block through a bearing, and one end of the No. 2 rotating shaft near the strip groove is fixedly connected to a gear, and gear blocks distributed at equal intervals are fixed on the inner wall of the frame near the strip groove, and a lifting mechanism is installed on the inner side of the lower mold, the lifting mechanism comprising a lift frame sliding through the inner side of the lower mold, and a lift block being threadedly sleeved on the bottom end of the lift frame.

[0006] Preferably, a support spring is sleeved on the outer side of the top frame, one end of the strip groove is connected to an arc groove formed on the inner wall of the frame, and a moving groove is formed on the inner side of the frame close to the moving block.

[0007] Preferably, the moving block and the moving groove are slidably connected, and the first rotating shaft passes through the inner side of the strip groove.

[0008] Preferably, a round rod is fixedly connected to one side of the lower mold close to the second rotating shaft, and the round rod is slidably connected to the strip groove.

[0009] Preferably, a No. 2 electric push rod is connected to one side of the moving block, and the No. 2 electric push rod is connected to the frame through a bracket, and a No. 1 electric push rod is installed on the middle inner wall of the frame close to the supporting plate.

[0010] Preferably, an upper mold is provided inside the frame above the lower mold, a hydraulic cylinder is installed on the top of the frame, and the upper part of the upper mold is connected to the hydraulic cylinder.

[0011] Preferably, guide rods are fixed at the four corners of the upper mold near the hydraulic cylinder, the guide rods are slidably connected to the top of the frame, one end of the frame is fixedly connected to a protective cover, and a feeding window is provided on the side of the frame away from the protective cover.

[0012] Preferably, a conveyor belt assembly is installed at the bottom end of the frame, and a buffer material receiving mechanism is installed inside the protective cover and the frame.

[0013] Preferably, the buffer material receiving mechanism includes a No. 1 rotating seat fixed on the inner walls on both sides of the frame, a material receiving plate is provided on the inner side of the protective cover, a rotating shaft is fixed on the inner wall of the protective cover close to the material receiving plate, and the rotating shaft and the material receiving plate are movably connected.

[0014] Preferably, a buffer pad is fixed on the surface of the material receiving plate, a No. 2 rotating seat is fixed on both ends of the material receiving plate, and an electric telescopic rod is movably connected between the No. 1 rotating seat and the No. 2 rotating seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This flip-type demoulding mold for large automotive parts moves the lower mold horizontally and flips it, allowing it to approach the receiving plate for unloading. The gear moves to a specified position and then engages with the gear block for flipping. This allows the load to be more evenly distributed between the gear and gear block, reducing local stress concentration and minimizing the risk of failure. 2. This flip-type demoulding mold for large automotive parts creates compression between the ejector frame and rollers as the lower mold moves laterally. This allows the lifting mechanism to lift the edge of the automotive part before the pneumatic ejector assembly ejects the material, loosening the part in advance and reducing the risk of the workpiece adhering to the mold. This speeds up ejection, improves overall production efficiency, and reduces the burden on the ejector pins in the mold, as well as wear and energy consumption. 3. The flip-over demoulding mold for large automobile parts and the setting of the buffer material receiving mechanism can prevent automobile parts from falling directly from the higher lower mold to the top of the conveyor belt assembly, reducing the impact of the falling automobile parts and avoiding collision and damage to the automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the frame of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the feeding window of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the conveyor belt assembly of the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the frame of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the buffer material receiving mechanism of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the crossbar of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the gear of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the strip groove of the present invention; Figure 9 Schematic diagram of the three-dimensional cross-sectional structure of the movable groove of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the lower mold of the present invention; Figure 11 This is a schematic diagram of the three-dimensional structure of the first rotating shaft of the present invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the top frame of the present invention; Figure 13 It is a schematic diagram of the three-dimensional structure of the jacking mechanism of the present invention.

[0017] In the figure: 1. Base; 2. Frame; 3. Hydraulic cylinder; 4. Protective cover; 5. Buffering material receiving mechanism; 501. No. 1 rotating seat; 502. Electric telescopic rod; 503. No. 2 rotating seat; 504. Buffer pad; 505. Material receiving plate; 6. Guide rod; 7. Conveyor belt assembly; 8. Lifting mechanism; 801. Ejector frame; 802. Support spring; 803. Ejector block; 9. Upper mold; 10. Lower mold; 11. Feeding window; 12. Cross bar; 13. Rotating shaft; 14. Support plate; 15. No. 1 electric push rod; 16. Pneumatic ejector assembly; 17. Moving block; 18. No. 1 rotating shaft; 19. No. 2 electric push rod; 20. Strip groove; 21. Arc groove; 22. Tooth block; 23. Roller; 24. Support seat; 25. Round rod; 26. Gear; 27. No. 2 rotating shaft; 28. Moving groove. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 4 The present invention provides a technical solution: a flip-type demoulding mold for large automobile parts, comprising a base 1 and a support base 24, a frame 2 is fixed above the base 1, a lower mold 10 is provided in the inner cavity of the frame 2, a pneumatic ejecting assembly 16 is installed below the lower mold 10, an upper mold 9 is provided inside the frame 2 above the lower mold 10, a hydraulic cylinder 3 is installed on the top of the frame 2, the upper part of the upper mold 9 is connected to the hydraulic cylinder 3, guide rods 6 are fixed at the four corners of the upper mold 9 near the hydraulic cylinder 3, and the guide rods 6 are slidably connected to the top of the frame 2.

[0020] See also Figure 3 、 Figure 4 and Figure 6 A supporting plate 14 and a cross bar 12 are fixedly mounted on the inner wall of the frame 2 near the bottom of the pneumatic ejection assembly 16, and a No. 1 electric push rod 15 is mounted on the middle inner wall of the frame 2 near the supporting plate 14.

[0021] In this flip-type demoulding mold for large automobile parts, during the stamping process, the lower mold 10 is subjected to a large pressure, and the bottom end of the lower mold 10 can be supported by a support plate 14 to disperse the pressure and improve the stability of the lower mold 10. Since the lower mold 10 is heavy when there are automobile parts in the lower mold 10, the No. 1 electric push rod 15 can be extended when the lower mold 10 moves horizontally to assist in pushing the lower mold 10, thereby reducing the load of the No. 2 electric push rod 19 and reducing the power consumption of the No. 2 electric push rod 19.

[0022] See also Figure 3 、 Figure 4 、 Figure 6 and Figure 10-13 The support seat 24 is fixed above the cross bar 12, and a roller 23 is installed on the inner side of the support seat 24 through a movable shaft. A lifting mechanism 8 is installed on the inner side of the lower mold 10, and the lifting mechanism 8 includes a top frame 801 that slides through the inner side of the lower mold 10. The bottom end of the top frame 801 is threadedly connected with a top block 803, and the outer side of the top frame 801 is connected with a support spring 802, and the top block 803 is set to a conical structure.

[0023] The present invention relates to a flip demoulding mold for large automobile parts. The lower mold 10 drives the lifting mechanism 8 to approach the roller 23 while moving horizontally. The lower mold 10 drives the top block 803 to contact the roller 23. Since the top block 803 is a cone and the lower mold 10 continues to move horizontally, the inclined surface of the top block 803 and the roller 23 generate an extrusion force. The top block 803 drives the top frame 801 to move upward. The top frame 801 lifts the edge of the automobile part, causing the automobile part to loosen and the elastic expansion of the support spring 802. The retractability can drive the ejector frame 801 to return to its original position. The ejector frame 801 and the ejector block 803 are threaded together, which is convenient for replacing the damaged ejector block 803 and the support spring 802. The setting of the ejector frame 801 and the roller 23 can lift the edge position of the automobile part before the pneumatic ejection assembly 16 ejects the material, loosening the automobile part in advance to reduce the risk of the workpiece adhering to the mold, thereby accelerating the ejection speed, improving the overall production efficiency, and reducing the burden on the ejector rod in the mold, as well as wear and energy consumption.

[0024] See also Figure 3 、 Figure 4 and Figures 6-11The two ends of the lower mold 10 are respectively fixedly connected to the No. 1 rotating shaft 18 and the No. 2 rotating shaft 27. The inner walls on both sides of the frame 2 are provided with strip grooves 20. The end of the No. 1 rotating shaft 18 close to the strip groove 20 is connected to the moving block 17 through a bearing. The end of the No. 2 rotating shaft 27 close to the strip groove 20 is fixedly connected to the gear 26. The inner wall of the frame 2 close to the strip groove 20 is fixed with tooth blocks 22 distributed at equal intervals. The inner side of the frame 2 close to the moving block 17 is provided with a moving groove 28, and the moving block 17 and the moving groove 28 are slidably connected.

[0025] The invention relates to a flip demoulding mold for large automobile parts. After the automobile parts are stamped and formed, the No. 2 electric push rod 19 extends and pushes the moving block 17 to slide in the moving groove 28. The moving block 17 pulls the lower mold 10 to move through the No. 1 rotating shaft 18. The No. 1 rotating shaft 18 slides in the strip groove 20. At the same time, the No. 1 electric push rod 15 applies a thrust to the middle part of the lower mold 10, so that the lower mold 10 moves horizontally, and the lower mold 10 drives the No. 2 rotating shaft 27 to slide in the strip groove 20. When the No. 2 rotating shaft 27 drives the gear 26 to reach the position of the tooth block 22, the gear 26 and the tooth block 22 are meshed and connected. The rear gear 26 rotates counterclockwise on the tooth block 22, and the gear 26 drives the second rotating shaft 27 to rotate, and the second rotating shaft 27 drives the lower mold 10 to rotate, so that the lower mold 10 is tilted, which is convenient for flipping and fast unloading. By moving the lower mold 10 horizontally and flipping it, the lower mold 10 can be brought close to the receiving plate 505 for unloading, and at the same time, the automobile parts can be loosened to avoid jamming. The setting of moving the gear 26 and then engaging with the tooth block 22 for flipping can make the load more evenly distributed between the gear 26 and the tooth block 22, reduce local stress concentration, and reduce the risk of failure.

[0026] See also Figure 3 、 Figure 4 and Figures 6-11 One end of the strip groove 20 is connected to an arc groove 21 opened on the inner wall of the frame 2, and the No. 1 rotating shaft 18 passes through the inner side of the strip groove 20. The side of the lower mold 10 close to the No. 2 rotating shaft 27 is fixedly connected to a round rod 25, and the round rod 25 and the strip groove 20 are slidably connected. One side of the moving block 17 is connected to the No. 2 electric push rod 19, and the No. 2 electric push rod 19 is connected to the frame 2 through a bracket. The No. 1 rotating shaft 18 and the No. 2 rotating shaft 27 are coaxially arranged.

[0027] The invention relates to a flip demoulding mold for large automobile parts. When the lower mold 10 is flipped, the lower mold 10 drives the round rod 25 to slide into the arc groove 21 to guide the round rod 25. The strip groove 20 guides the first rotating shaft 18, so that the lower mold 10 can move stably and flip.

[0028] See also Figure 1-Figure 5One end of the frame 2 is fixedly connected to a protective cover 4, a feeding window 11 is opened on the side of the frame 2 away from the protective cover 4, and a conveyor belt assembly 7 is installed at the bottom end of the frame 2.

[0029] The invention relates to a flip-type demoulding mold for large automobile parts. The protective cover 4 is used to prevent automobile parts from falling into the external environment to prevent damage. The setting of the feeding window 11 allows workers to place automobile parts into the lower mold 10 through the feeding window 11 for molding. The conveyor belt assembly 7 can transport the molded automobile parts out of the inner cavity of the frame 2. The invention is easy to operate and has high work efficiency.

[0030] See also Figure 1 、 Figure 4 and Figure 5 A buffer material receiving mechanism 5 is installed inside the protective cover 4 and the frame 2. The buffer material receiving mechanism 5 includes a No. 1 rotating seat 501 fixed on the inner walls of both sides of the frame 2, and a material receiving plate 505 is provided on the inner side of the protective cover 4.

[0031] The invention relates to a flip demoulding mold for large automobile parts. After the lower mold 10 is flipped and the automobile parts are pushed out by the pneumatic ejecting assembly 16, the automobile parts first slide onto the receiving plate 505, and the receiving plate 505 supports and transitions the automobile parts. Then, the automobile parts slide from the receiving plate 505 to the conveyor belt assembly 7. The setting of the receiving plate 505 can prevent the automobile parts from falling directly from the lower mold 10 to the top of the conveyor belt assembly 7, thereby reducing the impact of the automobile parts falling and avoiding bumps and damage to the automobile parts.

[0032] See also Figure 1 、 Figure 4 and Figure 5 The protective cover 4 is fixed with a rotating shaft 13 on the inner wall near the receiving plate 505, and the rotating shaft 13 and the receiving plate 505 are movably connected. A buffer pad 504 is fixed on the surface of the receiving plate 505, and a No. 2 rotating seat 503 is fixed at both ends of the receiving plate 505. An electric telescopic rod 502 is movably connected between the No. 1 rotating seat 501 and the No. 2 rotating seat 503, and the material of the buffer pad 504 is polyurethane.

[0033] In this flip-type demoulding mold for large automobile parts, the buffer pad 504 improves the buffering performance of the receiving plate 505, and the polyurethane material has good elasticity and buffering performance, which can avoid friction between the automobile parts and the receiving plate 505. The inclination angle of the receiving plate 505 can be adjusted by the electric telescopic rod 502, so that the bottom end of the receiving plate 505 is closer to the surface of the conveyor belt assembly 7, which is convenient for stable unloading.

[0034] In summary, when using the flip demoulding mold for large automobile parts, the automobile parts are placed at the feeding window 11, and then the hydraulic cylinder 3 is started to push the upper mold 9 downward to make the upper mold 9 and the lower mold 10 dock. At the same time, the guide rod 6 guides the descent of the upper mold 9, and the upper mold 9 applies pressure to the lower mold 10 to stamp the automobile parts. When the automobile parts are formed, the No. 2 electric push rod 19, the No. 1 electric push rod 15, the No. 1 rotating shaft 18, the gear 26 and the gear block 22 drive the lower mold 10 to move and flip, and at the same time the lifting mechanism 8 and the roller 23 lift the automobile parts, so that the automobile parts are pressed. The edges of the automobile parts are loose, which makes it easier for the pneumatic ejecting assembly 16 to eject the automobile parts, and the automobile parts slide onto the receiving plate 505. Then, the automobile parts are transitionally buffered by the buffer receiving mechanism 5, so that the automobile parts slide smoothly onto the surface of the conveyor belt assembly 7. Finally, the conveyor belt assembly 7 conveys the formed automobile parts out of the inner cavity of the frame 2. The operations of moving, flipping, ejecting and receiving buffering improve the working efficiency, practicality and safety of the flip demolding mold for large automobile parts. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flip-type demoulding mold for large automobile parts, comprising a base (1) and a support base (24), wherein a frame (2) is fixed above the base (1), characterized in that: A lower mold (10) is provided in the inner cavity of the frame (2), a pneumatic ejection assembly (16) is installed below the lower mold (10), a support plate (14) and a cross bar (12) are fixedly installed on the inner wall of the frame (2) near the bottom of the pneumatic ejection assembly (16), the support seat (24) is fixed above the cross bar (12), a roller (23) is installed on the inner side of the support seat (24) through a movable shaft, the two ends of the lower mold (10) are respectively fixedly connected to the first rotating shaft (18) and the second rotating shaft (27), and strips are provided on the inner walls of both sides of the frame (2). shaped groove (20), one end of the No. 1 rotating shaft (18) close to the strip groove (20) is connected to a moving block (17) through a bearing, one end of the No. 2 rotating shaft (27) close to the strip groove (20) is fixedly connected to a gear (26), and gear blocks (22) distributed at equal intervals are fixed on the inner wall of the frame (2) close to the strip groove (20), and a lifting mechanism (8) is installed on the inner side of the lower mold (10), and the lifting mechanism (8) includes a top frame (801) that slides through the inner side of the lower mold (10), and the bottom end of the top frame (801) is threadedly sleeved with a top block (803).

2. The flip demoulding mold for large automobile parts according to claim 1, characterized in that: A support spring (802) is sleeved on the outer side of the top frame (801), one end of the strip groove (20) is connected to an arc groove (21) provided on the inner wall of the frame (2), and a moving groove (28) is provided on the inner side of the frame (2) near the moving block (17).

3. The flip demoulding mold for large automobile parts according to claim 2, characterized in that: The moving block (17) and the moving groove (28) are in sliding connection, and the first rotating shaft (18) passes through the inner side of the strip groove (20).

4. The flip demoulding mold for large automobile parts according to claim 1, characterized in that: A round rod (25) is fixedly connected to one side of the lower mold (10) close to the second rotating shaft (27), and the round rod (25) is slidably connected to the strip groove (20).

5. The flip demoulding mold for large automobile parts according to claim 2, characterized in that: A No. 2 electric push rod (19) is connected to one side of the moving block (17), and the No. 2 electric push rod (19) is connected to the frame (2) through a bracket. A No. 1 electric push rod (15) is installed on the inner wall of the middle portion of the frame (2) near the supporting plate (14).

6. The flip demoulding mold for large automobile parts according to claim 1, characterized in that: An upper mold (9) is provided inside the frame (2) above the lower mold (10), a hydraulic cylinder (3) is installed on the top of the frame (2), and the upper part of the upper mold (9) is connected to the hydraulic cylinder (3).

7. The flip demoulding mold for large automobile parts according to claim 6, characterized in that: Guide rods (6) are fixed at the four corners of the upper mold (9) near the hydraulic cylinder (3), and the guide rods (6) are slidably connected to the top of the frame (2). A protective cover (4) is fixedly connected to one end of the frame (2), and a feeding window (11) is provided on the side of the frame (2) away from the protective cover (4).

8. The flip demoulding mold for large automobile parts according to claim 7, characterized in that: A conveyor belt assembly (7) is installed at the bottom end of the frame (2), and a buffer material receiving mechanism (5) is installed inside the protective cover (4) and the frame (2).

9. The flip demoulding mold for large automobile parts according to claim 8, characterized in that: The buffer material receiving mechanism (5) includes a No. 1 rotating seat (501) fixed on the inner walls of both sides of the frame (2), a material receiving plate (505) is provided on the inner side of the protective cover (4), a rotating shaft (13) is fixed on the inner wall of the protective cover (4) close to the material receiving plate (505), and the rotating shaft (13) and the material receiving plate (505) are movably connected.

10. The flip demoulding mold for large automobile parts according to claim 9, characterized in that: A buffer pad (504) is fixed on the surface of the material receiving plate (505), a second rotating seat (503) is fixed at both ends of the material receiving plate (505), and an electric telescopic rod (502) is movably connected between the first rotating seat (501) and the second rotating seat (503).

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