Complex-shaped product mold for secondary mold pressing foaming

Abstract

The utility model relates to the technical field of supercritical foaming, and discloses a complex-shape product mold for secondary mold pressing foaming, which comprises a base, a bottom plate I fixedly connected to the top of the base, a bottom plate II fixedly connected to the top of the bottom plate I, a lower mold fixedly connected to the top of the bottom plate II, and a lower mold fixedly connected to the top of the lower mold. A plurality of first hydraulic rods are rotationally connected to the top of the base, second rotating parts are rotationally connected to the driving ends of the first hydraulic rods, an upper mold is fixedly connected to the rear sides of the second rotating parts, an electric push rod is fixedly connected to the top of the base, and a sliding plate is fixedly connected to the driving end of the electric push rod. And the top of the sliding plate is fixedly connected with a plurality of primary pushing rods. According to the utility model, the secondary ejection mechanism is additionally arranged, so that foaming products with complex and special structures can be completely demoulded, the integrity and the precision of the products are improved, and the additionally arranged cutting mechanism can effectively cut burrs and improve the appearance quality of the products.

Description

Technical Field

[0001] The utility model relates to the technical field of supercritical foaming, in particular to a mold for complex-shaped products for secondary compression molding and foaming. Background Art

[0002] The mold for complex-shaped products for secondary compression molding and foaming is usually a mold specifically designed for producing foamed products with complex geometric shapes. Such a mold needs to have high-precision cavities and cores, a perfect heating and cooling system, an efficient ejection mechanism, and good exhaust performance to ensure the quality and production efficiency of the products.

[0003] In the prior art, workers need to heat and cool the mold to control the process of the foaming reaction, and then quickly cool the mold through the cooling system to solidify and form the product and then eject the product. However, in the prior art, due to some foamed products with complex shapes and special structures, they cannot be effectively and completely demolded. Therefore, a mold for complex-shaped products for secondary compression molding and foaming is proposed to solve the above problems. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a mold for complex-shaped products for secondary compression molding and foaming, aiming to improve the problem of poor demolding effect of some products in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A mold for complex-shaped products for secondary compression molding and foaming, including a base, a first bottom plate is fixedly connected to the top of the base, a second bottom plate is fixedly connected to the top of the first bottom plate, a lower mold is fixedly connected to the top of the second bottom plate, a plurality of first hydraulic rods are rotatably connected to the top of the base, a second rotating member is rotatably connected to the driving end of the first hydraulic rod, an upper mold is fixedly connected to the rear side of the second rotating member, an electric push rod is fixedly connected to the top of the base, a sliding plate is fixedly connected to the driving end of the electric push rod, a plurality of first pushing rods are fixedly connected to the top of the sliding plate, a pushing plate is slidably connected to the top of the sliding plate, a plurality of second pushing rods are fixedly connected to the top of the pushing plate, two first rotating members are fixedly connected to the top of the sliding plate, two pulleys are rotatably connected to the inside of the first rotating member, and a cutting assembly for cutting burrs is arranged inside the upper mold.

[0007] As a further description of the above technical solution:

[0008] The outside of the first pushing rod is slidably connected inside the lower mold, and the outside of the second pushing rod is slidably connected inside the lower mold.

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

[0010] A plurality of universal wheels are fixedly connected to the bottom of the base, a support frame is fixedly connected to the right side of the base, and an electrical box is fixedly connected to the top of the support frame.

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

[0012] Hydraulic rods II are rotatably connected to the top of the left and right sides of the base, and a rotating rod is fixedly connected to the driving end of the hydraulic rod II.

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

[0014] Two fixing frames are fixedly connected to the top of the upper mold, and the outer parts of the two rotating rods are rotatably connected inside the fixing frames.

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

[0016] The cutting assembly includes two blades, and the outer parts of the two blades are respectively rotatably connected to the left and right sides inside the upper mold.

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

[0018] A fixing rod is fixedly connected to the inside of the blade, a spring is sleeved on the outer part of the fixing rod, and a sliding member is slidably connected to the outer part of the fixing rod.

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

[0020] A rotating plate is rotatably connected to the top of the sliding member, and the outer part of the rotating plate is rotatably connected to the inside of the blade.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the rotation and closing of the upper mold driven by the hydraulic rod I cause the blade to move downward, and the reaction force of the spring pushes the sliding member to slide backward, driving the rotating plate to rotate, forming an inclination for the blade, and powerfully cutting the burrs of the die-pressing raw material through the reaction force of the spring, improving the appearance quality of the product.

[0023] 2. In the utility model, the electric push rod drives the sliding plate to slide upward, thereby driving a plurality of primary push rods to slide upward, ejecting the products of the secondary die-pressing at one time, and the sliding of the sliding plate also drives the top rotating member I and the pulley to move upward. When one end of the pulley is limited by the boundary of the base II, it drives the rotating member I to rotate, thereby driving the push plate to slide upward again, and finally a plurality of secondary push rods at the top push the secondary die-pressing products upward for the second time, improving the demoulding efficiency of complex structures and increasing the demoulding effect. Description of the Drawings

[0024] Figure 1 This is a three-dimensional view of the mold for complex-shaped products used in secondary compression molding and foaming proposed by the present utility model;

[0025] Figure 2 This is a schematic structural view of the second base of the mold for complex-shaped products used in secondary compression molding and foaming proposed by the present utility model;

[0026] Figure 3 This is a schematic structural view of the push plate of the mold for complex-shaped products used in secondary compression molding and foaming proposed by the present utility model;

[0027] Figure 4 This is a schematic structural view of the upper mold of the mold for complex-shaped products used in secondary compression molding and foaming proposed by the present utility model;

[0028] Figure 5 This is a schematic structural view of the blade of the mold for complex-shaped products used in secondary compression molding and foaming proposed by the present utility model.

[0029] Legend:

[0030] 1. Base; 2. Universal wheel; 3. Support frame; 4. Electric box; 5. First hydraulic rod; 6. First bottom plate; 7. Second bottom plate; 8. Lower mold; 9. Upper mold; 10. Second hydraulic rod; 11. Fixed frame; 12. Rotating rod; 13. Electric push rod; 14. Sliding plate; 15. Push plate; 16. Second push rod; 17. First rotating part; 18. Pulley; 19. Blade; 20. Rotating plate; 21. Fixed rod; 22. Spring; 23. First push rod; 24. Second rotating part; 25. Sliding part. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1, An embodiment provided by the present utility model: A mold for complex-shaped products for secondary compression foaming, including a base 1. The base 1 serves as the support foundation for the entire mold and is usually welded from strong steel materials, having sufficient strength and stability to withstand various pressures and impact forces generated during the working process of the mold. A first bottom plate 6 is fixedly connected to the top of the base 1. A sliding assembly is arranged inside the first bottom plate 6 to drive the subsequent structure to eject the product raw material. A second bottom plate 7 is fixedly connected to the top of the first bottom plate 6. A lower mold 8 is fixedly connected to the top of the second bottom plate 7. A plurality of first hydraulic rods 5 are rotatably connected to the top of the base 1. The driving end of the first hydraulic rod 5 is rotatably connected to a second rotating member 24. The first hydraulic rod 5 is usually composed of a hydraulic cylinder and a piston rod, providing a powerful driving force through a hydraulic system. The rotatable connection mode of the first hydraulic rod 5 enables it to move flexibly within a certain angle range, thereby realizing the opening and closing actions of the subsequent structure. A rear side of the second rotating member 24 is fixedly connected to an upper mold 9. The upper mold 9 corresponds to the lower mold 8 and jointly forms the cavity of the mold.

[0033] Referring to Figures 1 to 2 , An electric push rod 13 is fixedly connected to the top of the base 1. The electric push rod 13 provides the power source for the subsequent ejection mechanism. The driving end of the electric push rod 13 is fixedly connected to a sliding plate 14. The sliding plate 14 is made of stainless steel metal plate, having good strength and stiffness, and drives the subsequent structure to eject the product. A plurality of first pushing rods 23 are fixedly connected to the top of the sliding plate 14. The first pushing rods 23 are usually made of metal bars, and their diameters and lengths are designed according to the specific requirements of the mold. The function of the first pushing rods 23 is to initially eject the formed product from the cavity of the lower mold 8 after the mold is opened, preparing for the subsequent secondary ejection. A pushing plate 15 is slidably connected to the top of the sliding plate 14. The pushing plate 15 is used to connect the subsequent secondary pushing structure for pushing operations. A plurality of second pushing rods 16 are fixedly connected to the top of the pushing plate 15. The second pushing rods 16 further eject the product completely from the cavity of the lower mold 8, ensuring that the product can be smoothly demolded. The structure and material of the second pushing rods 16 are similar to those of the first pushing rods 23, but the length is increased to adapt to different ejection requirements. Two first rotating members 17 are fixedly connected to the top of the sliding plate 14. The first rotating members 17 are L-shaped and drive the other end to rotate upward when a reaction force is applied to one end, driving the pushing plate 15 to slide upward again. Two pulleys 18 are rotatably connected inside the first rotating members 17. The pulleys 18 are used to reduce the frictional contact of the first rotating members 17 and increase the service life. A cutting assembly for cutting burrs is arranged inside the upper mold 9. The outside of the first pushing rods 23 is slidably connected inside the lower mold 8. The outside of the second pushing rods 16 is slidably connected inside the lower mold 8.

[0034] Referring to Figures 1 to 2, multiple universal wheels 2 are fixedly connected to the bottom of the base 1. The universal wheels 2 are made of a sturdy rubber or plastic material for the wheel body, and are paired with a metal bracket. The universal wheels 2 enable the entire mold to be easily moved to adapt to the requirements of different production sites. A support frame 3 is fixedly connected to the right side of the base 1. The support frame 3 is welded from steel plates and has high strength and stability. The function of the support frame 3 is to provide stable support for the subsequent structure. An electrical box 4 is fixedly connected to the top of the support frame 3. The function of the electrical box 4 is to provide power and control signals for each electrical component of the mold to achieve the automated operation of the mold. The outer shell of the electrical box 4 has good protection performance, which can prevent external factors such as dust and water vapor from affecting the internal electrical components. At the same time, heat dissipation holes or fans and other heat dissipation devices are provided on the electrical box 4 to ensure that the internal electrical components will not be damaged due to excessive temperature during operation. Hydraulic rods II 10 are rotatably connected to the top of the left and right sides of the base 1. The hydraulic rods II 10 provide a squeezing force for the sealing of the upper mold 9. The driving end of the hydraulic rod II 10 is fixedly connected to a rotating rod 12. Two fixing frames 11 are fixedly connected to the top of the upper mold 9. By rotating the rotating rod 12 inside the fixing frame 11, the direction of the force is changed. The outer parts of the two rotating rods 12 are rotatably connected inside the fixing frame 11, so that the upward thrust is changed into a downward pressure to increase the sealing performance for mold pressing.

[0035] Refer to Figures 4 to 5 , the cutting assembly includes two blades 19. The outer parts of the two blades 19 are respectively rotatably connected to the left and right sides inside the upper mold 9. The blades 19 are made of high-strength alloy steel and have good wear resistance and cutting performance. A fixing rod 21 is fixedly connected to the inside of the blade 19. The fixing rod 21 realizes guiding and limiting for the subsequent elastic structure to prevent deformation. A spring 22 is sleeved on the outside of the fixing rod 21. The spring 22 is used to provide a reaction force to increase the rotational pressure of the blade 19 and improve the cutting effect. A sliding part 25 is slidably connected to the outside of the fixing rod 21. The sliding part 25 is used to receive the elastic force of the spring 22 for the subsequent structure. A rotating plate 20 is rotatably connected to the top of the sliding part 25. The rotating plate 20 is used to change the direction of the force, changing the sliding force into a rotational force. The outer part of the rotating plate 20 is rotatably connected to the inside of the blade 19.

[0036] Working principle: First, the driving end of the hydraulic rod 1 is retracted, driving the rotating part 2 to rotate, and then driving the upper mold 9 to rotate and open, opening the top of the lower mold 8. The product raw material to be secondarily molded is placed inside the lower mold 8. The hydraulic rod 1 drives the upper mold 9 to rotate and close. At this time, the rotation of the upper mold 9 drives the blade 19 to move downward, and the reaction force of the spring 22 pushes the sliding part 25 to slide backward, driving the rotating plate 20 to rotate inside the upper mold 9 to form an inclination. The reaction force of the spring 22 powerfully cuts the flash of the molded raw material, improving the dimensional accuracy of the product, making the appearance of the product smoother and neater, and enhancing the overall quality of the product.

[0037] Secondly, after the heating and secondary molding are completed, the electric push rod 13 is activated to drive the sliding plate 14 to slide upward, thereby driving a plurality of primary push rods 23 to slide upward inside the lower mold 8 to eject the product of the secondary molding. At the same time, the sliding of the sliding plate 14 drives the top rotating part 1 and the pulley 18 to move upward. When one end of the pulley 18 is limited by the boundary of the bottom plate 2, it drives the rotating part 1 to rotate, thereby driving the push plate 15 to slide upward again. The plurality of secondary push rods 16 on the top of the push plate 15 eject the product of the secondary molding upward again. For some foamed products with complex shapes and special structures, such as products with deep cavities, undercuts, side holes and other structures, they may not be able to completely separate from the mold cavity or core after the first ejection. The secondary ejection mechanism can perform a second ejection action after the first ejection makes the product partially separate, ensuring that the product can smoothly fall off from the mold, effectively solving the demolding problem of products with special shapes.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mold for a complex-shaped product for secondary compression foaming, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a bottom plate 1 (6), the top of the bottom plate 1 (6) is fixedly connected to a bottom plate 2 (7), the top of the bottom plate 2 (7) is fixedly connected to a lower mold (8), the top of the base (1) is rotatably connected to a plurality of hydraulic rods 1 (5), the driving end of the hydraulic rod 1 (5) is rotatably connected to a rotating member 2 (24), the rear side of the rotating member 2 (24) is fixedly connected to an upper mold (9), the top of the base (1) is fixedly connected to an electric push rod (13), the electric push rod (13) is The driving end is fixedly connected to a sliding plate (14), the top of the sliding plate (14) is fixedly connected to a plurality of primary push rods (23), the top of the sliding plate (14) is slidably connected to a push plate (15), the top of the push plate (15) is fixedly connected to a plurality of secondary push rods (16), the top of the sliding plate (14) is fixedly connected to two rotating parts (17), the interior of the rotating part (17) is rotatably connected to two pulleys (18), and a cutting component for cutting burrs is arranged inside the upper mold (9).

2. The complex-shaped product mold for secondary compression foaming according to claim 1, characterized in that: The outer portion of the primary push rod (23) is slidably connected to the inner portion of the lower mold (8), and the outer portion of the secondary push rod (16) is slidably connected to the inner portion of the lower mold (8).

3. The complex-shaped product mold for secondary compression foaming according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to a plurality of universal wheels (2), the right side of the base (1) is fixedly connected to a support frame (3), and the top of the support frame (3) is fixedly connected to an electrical box (4).

4. The complex-shaped product mold for secondary compression foaming according to claim 1, characterized in that: The tops of both left and right sides of the base (1) are rotatably connected to hydraulic rods 2 (10), and the driving ends of the hydraulic rods 2 (10) are fixedly connected to rotating rods (12).

5. The complex-shaped product mold for secondary compression foaming according to claim 4, characterized in that: The top of the upper mold (9) is fixedly connected to two fixing frames (11), and the outsides of the two rotating rods (12) are rotatably connected to the insides of the fixing frames (11).

6. The complex-shaped product mold for secondary compression foaming according to claim 1, characterized in that: The cutting assembly comprises two blades (19), the exteriors of the two blades (19) being rotatably connected to the interiors of the left and right sides of the upper mold (9) respectively.

7. The complex-shaped product mold for secondary compression foaming according to claim 6, characterized in that: The interior of the blade (19) is fixedly connected to a fixing rod (21), the exterior of the fixing rod (21) is sleeved with a spring (22), and the exterior of the fixing rod (21) is slidably connected to a sliding member (25).

8. The complex-shaped product mold for secondary compression foaming according to claim 7, characterized in that: The top of the sliding member (25) is rotatably connected to a rotating plate (20), and the outside of the rotating plate (20) is rotatably connected to the inside of the blade (19).

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