Forming device for flame-retardant foam production

By introducing a buffer structure and hydraulic system into the flame-retardant foam molding device, the problems of poor buffering effect and inconvenient material ejection are solved, thereby extending the life of the die-cutting blade and ensuring safe and efficient material removal.

CN224239796UActive Publication Date: 2026-05-15KUNSHAN SHENGNUOER ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN SHENGNUOER ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing flame-retardant foam molding devices have poor cushioning effects, cannot automatically eject materials, and have low safety and efficiency.

Method used

A buffer structure including a pressure plate, a buffer plate, an auxiliary plate, a main positioning rod, a secondary positioning rod, a limit plate, and elastic elements was designed. The die-cutting blade is driven by a hydraulic system to perform die cutting, and the material is automatically ejected after die cutting.

Benefits of technology

It improves the service life of the die-cutting blade and enhances the safety and production efficiency when removing flame-retardant foam.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a forming device for flame-retardant foam production, which comprises a base, the upper surface of the base is fixedly connected with a mounting frame and a die cutting seat respectively, the upper surface of the mounting frame is fixedly connected with a hydraulic cylinder, a telescopic rod of the hydraulic cylinder is fixedly connected with a movable plate, and the lower surface of the movable plate is fixedly connected with a mounting plate and a die cutter. The lower surface of the bearing plate is fixedly connected with a buffer plate, the lower end of the buffer plate penetrates through a penetrating opening formed in the base to be slidably connected into a limiting plate, meanwhile, the limiting plate is fixedly connected to the top of an inner cavity of the base, and through holes are symmetrically formed in the bottom of an inner cavity of the limiting plate. Auxiliary positioning rods are correspondingly connected to the positions, corresponding to the through holes, of the lower surface of the buffer plate, and elastic elements sleeve the surfaces of the auxiliary positioning rods. Through cooperation of the main positioning rod, the auxiliary positioning rod, the elastic element, the buffer plate, the auxiliary plate and the bearing plate, the device can have the buffering and automatic material ejecting effects, and then the flame-retardant foam production efficiency can be improved in an auxiliary mode.
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Description

Technical Field

[0001] This utility model relates to the technical field of foam forming equipment, specifically to a forming device for the production of flame-retardant foam. Background Technology

[0002] Foam is a material made by foaming plastic particles. It is characterized by high elasticity, light weight, flexibility, ultra-thinness, and reliable performance. Flame-retardant foam, on the other hand, is a type of foam material that acquires fire-retardant properties by adding specific flame retardants. It can effectively slow down or prevent combustion, reducing the risk of fire, and is widely used in construction, automotive, and electronics industries. To adapt to different usage environments, large pieces of foam need to be divided into appropriately sized units to fit different spaces. Flame-retardant foam is usually cut using die-cutting equipment. However, existing common die-cutting equipment has poor cushioning and lacks ejection functionality. When using the equipment, the die-cutting blade cannot be cushioned, and the material cannot be ejected after cutting, requiring the user to reach inside to retrieve it, which is unsafe and inconvenient. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a molding apparatus for the production of flame-retardant foam is provided to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a molding apparatus for producing flame-retardant foam is provided, comprising: a base, an mounting frame and a die-cutting seat fixedly connected to the upper surface of the base, a hydraulic cylinder fixedly connected to the upper surface of the mounting frame, a movable plate fixedly connected to the telescopic rod of the hydraulic cylinder, an mounting plate and a die-cutting blade fixedly connected to the lower surface of the movable plate, a pressure plate slidably connected to the inner cavity of the die-cutting seat, a buffer plate fixedly connected to the lower surface of the pressure plate, and the lower end of the buffer plate slidably connected to a limiting plate through a through-hole in the base, while the limiting plate is fixedly connected to the top of the inner cavity of the base, and through holes are symmetrically opened at the bottom of the inner cavity of the limiting plate. A secondary positioning rod is connected to the lower surface of the buffer plate corresponding to the position of the through hole, and an elastic element is sleeved on the surface of the secondary positioning rod. An auxiliary plate is fixedly connected to both ends of the pressure plate through a fixing block, and a main positioning rod is sleeved on the auxiliary plate. The lower end of the main positioning rod is fixedly connected to the upper surface of the base, and an elastic element is sleeved on the lower end of the main positioning rod.

[0005] Preferably, the base has a square cylindrical structure, and multiple sets of reinforcing plates are fixedly connected in parallel and at equal intervals inside the base cavity. The reinforcing plates have a rectangular structure, and the cross-section formed by the combination of the reinforcing plates and the base has a V-shaped structure.

[0006] Preferably, the buffer plate has a rectangular structure, the through-hole size of the buffer plate and the base is adapted to each other, and multiple sets of secondary positioning rods are fixedly connected parallel to each other at equal intervals along the length direction on the lower surface of the buffer plate, and all sets of secondary positioning rods have a cylindrical structure.

[0007] Preferably, the limiting plate has a U-shaped structure, the dimensions of the inner cavity of the limiting plate and the lower end of the buffer plate are matched, and the dimensions of the secondary positioning rod and the through hole are matched.

[0008] Preferably, the pressure plate has a rectangular structure, the dimensions of the pressure plate and the inner cavity of the die-cutting seat are matched, and the cross-section formed by the combination of the pressure plate and the buffer plate is T-shaped, while the upper surface of the pressure plate is fixedly connected to the die-cutting pad.

[0009] Preferably, multiple sets of fixing blocks are fixedly connected at equal intervals at both ends of the pressure plate. The multiple sets of fixing blocks are all rectangular in structure, and through slots are opened on the side of the die-cutting seat relative to the position of the fixing blocks. The through slots are also rectangular in structure. At the same time, multiple sets of fixing blocks at the same end of the pressure plate are fixedly connected to the same set of auxiliary plates, and the auxiliary plates and fixing blocks are combined to form an E-shaped structure.

[0010] Preferably, the movable plate has a rectangular structure, with two sets of mounting slots symmetrically opened inside the movable plate. The cross-section of both sets of mounting slots is a convex structure, and an electromagnet is fixedly connected to the upper end of the mounting slot. The size of the lower end of the mounting slot is adapted to that of the positioning column. At the same time, the two ends of the movable plate are movably connected to adjusting bolts through bearings.

[0011] Preferably, the clamping plate screwed to the adjusting bolt has a rectangular structure, while the fitting part fixedly connected to the lower surface of the clamping plate has a long strip structure, and the positioning column fixedly connected to the upper surface of the mounting plate has a U-shaped cross section. At the same time, fitting grooves are opened at the positions of the fitting parts at both ends of the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the pressure plate, buffer plate, auxiliary plate, main positioning rod, secondary positioning rod, limiting plate and elastic element, the die-cutting seat of the device can have a corresponding buffer structure, which can buffer the die-cutting blade and help extend the service life of the die-cutting blade. At the same time, after the flame-retardant foam is die-cut, the reset pressure plate can automatically eject the material, thereby improving the efficiency and safety of flame-retardant foam removal. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a top view of an embodiment of the present utility model.

[0015] Figure 3This is a partial disassembled schematic diagram of the movable plate, mounting plate, and clamping plate according to an embodiment of the present utility model.

[0016] Figure 4 This is a schematic diagram of the base and buffer plate structure of an embodiment of the present utility model.

[0017] In the diagram: 1. Base; 2. Reinforcing plate; 3. Limiting plate; 4. Die-cutting seat; 5. Buffer plate; 6. Auxiliary plate; 7. Fixing block; 8. Main positioning rod; 9. Pressure plate; 10. Die-cutting blade; 11. Clamping plate; 12. Adjusting bolt; 13. Mounting frame; 14. Mounting plate; 15. Positioning column; 16. Electromagnet; 17. Hydraulic cylinder; 18. Moving plate; 19. Secondary positioning rod. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a molding device for the production of flame-retardant foam, including: a base 1, an mounting frame 13 and a die-cutting seat 4 are fixedly connected to the upper surface of the base 1, a hydraulic cylinder 17 is fixedly connected to the upper surface of the mounting frame 13, and a moving plate 18 is fixedly connected to the telescopic rod of the hydraulic cylinder 17. An mounting plate 14 and a die-cutting blade 10 are fixedly connected to the lower surface of the moving plate 18, and a pressure plate 9 is slidably connected to the inner cavity of the die-cutting seat 4. A buffer plate 5 is fixedly connected to the lower surface of the pressure plate 9, and the lower end of the buffer plate 5 is slidably connected to the limiting plate 3 through a through-hole opened in the base 1. At the same time, the limiting plate 3 is fixedly connected to the top of the inner cavity of the base 1, and through holes are symmetrically opened at the bottom of the inner cavity of the limiting plate 3. A secondary positioning rod 19 is connected to the lower surface of the buffer plate 5 at a position corresponding to the through holes. An elastic element is sleeved on the surface of the secondary positioning rod 19, and an auxiliary plate 6 is fixedly connected to both ends of the pressure plate 9 through a fixing block 7. A main positioning rod 8 is sleeved on the auxiliary plate 6, and the lower end of the main positioning rod 8 is fixedly connected to the upper surface of the base 1. An elastic element is sleeved on the lower end of the main positioning rod 8.

[0019] In this embodiment, the flame-retardant foam to be processed is placed on the surface of the pressure plate 9 inside the die-cutting seat 4. The switch of the hydraulic cylinder 17 is activated, and the extension rod of the hydraulic cylinder 17 can push the fixedly connected moving plate 18, mounting plate 14 and die-cutting blade 10 to move down synchronously. Then, the die-cutting blade 10 can perform corresponding die-cutting processing on the flame-retardant foam, which facilitates the forming of the flame-retardant foam. During the die-cutting process of the die-cutting blade 10, the flame-retardant foam and the pressure plate 9 will move down synchronously. The fixed block 7, auxiliary plate 6, buffer plate 5 and limit plate 3 squeeze the corresponding elastic elements, which has a corresponding buffering effect on the die-cutting blade 10. After the flame-retardant foam is die-cut and formed, the reset switch of the hydraulic cylinder 17 is activated, and the die-cutting blade 10 is disengaged from the inner cavity of the die-cutting seat 4. At the same time, the auxiliary plate 6, buffer plate 5 and pressure plate 9 will reset and move up under the action of the squeezed elastic elements, thereby realizing the ejection of the flame-retardant foam. This can effectively improve the safety and production efficiency when the flame-retardant foam is removed.

[0020] As a preferred embodiment, the base 1 has a square cylindrical structure, and multiple sets of reinforcing plates 2 are fixedly connected in parallel and at equal intervals inside the base 1. The reinforcing plates 2 have a rectangular structure, and the cross section formed by the combination of the reinforcing plates 2 and the base 1 has a U-shaped structure.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 4 The reinforcement plate 2 helps to enhance the overall structural strength of the base 1 and reduce the probability of deformation and damage to the base 1. At the same time, the hollow structure of the base 1 helps to reduce the overall weight of the device.

[0022] As a preferred embodiment, the buffer plate 5 has a rectangular structure, the through opening size of the buffer plate 5 and the base 1 is adapted to each other, and multiple sets of secondary positioning rods 19 are fixedly connected parallel to each other at equal intervals along the length direction on the lower surface of the buffer plate 5, and all sets of secondary positioning rods 19 have a cylindrical structure.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 4 The size of the buffer plate 5 and the through-hole are matched, which helps to enhance the stability of the buffer plate 5 when it moves. At the same time, the setting of the secondary positioning rod 19 can limit the compression path of the elastic element in the inner cavity of the limiting plate 3, ensuring that the elastic element can be compressed and reset normally, and reducing the probability of damage to the elastic element.

[0024] As a preferred embodiment, the limiting plate 3 has a U-shaped structure, the inner cavity of the limiting plate 3 and the lower end of the buffer plate 5 are matched in size, and the secondary positioning rod 19 and the through hole are matched in size.

[0025] In this embodiment, as Figure 2 and Figure 4 The inner cavity of the limiting plate 3 and the lower end of the buffer plate 5 are matched in size, which can help enhance the stability of the buffer plate 5 when it moves. At the same time, the setting of the secondary positioning rod 19 and the through hole can also help reduce the probability of the buffer plate 5 shaking when it moves.

[0026] In a preferred embodiment, the pressure plate 9 has a rectangular structure, the dimensions of the pressure plate 9 and the inner cavity of the die-cutting seat 4 are matched, and the cross section formed by the combination of the pressure plate 9 and the buffer plate 5 is T-shaped, while the die-cutting pad is fixedly connected to the upper surface of the pressure plate 9.

[0027] In this embodiment, as Figure 1 and Figure 2 The size setting of the pressure plate 9 can help enhance the stability of the pressure plate 9 when it moves inside the die-cutting seat 4. At the same time, the setting of the die-cutting pad can help reduce the probability of wear of the die-cutting blade 10 when cutting flame-retardant foam.

[0028] In a preferred embodiment, multiple sets of fixing blocks 7 are fixedly connected at equal intervals at both ends of the pressure plate 9. The multiple sets of fixing blocks 7 are all rectangular in structure, and through slots are opened on the side of the die-cutting seat 4 relative to the positions of the fixing blocks 7. The through slots are rectangular in structure. At the same time, the multiple sets of fixing blocks 7 at the same end of the pressure plate 9 are fixedly connected to the same set of auxiliary plates 6, and the auxiliary plates 6 and fixing blocks 7 are combined together to form an E-shaped structure.

[0029] In this embodiment, as Figure 1 and Figure 2 The dimensions of the fixing block 7 and the through groove are matched, which helps to enhance the stability of the pressure plate 9 and the auxiliary plate 6 when they move. The main positioning rod 8 helps to limit the compression and reset path of the corresponding elastic element.

[0030] As a preferred embodiment, the movable plate 18 has a rectangular structure, and two sets of mounting slots are symmetrically opened inside the movable plate 18. The cross-section of the two sets of mounting slots is convex, and the upper end of the mounting slot is fixedly connected to the electromagnet 16, while the lower end of the mounting slot is adapted to the size of the positioning column 15. At the same time, the two ends of the movable plate 18 are movably connected to the adjusting bolts 12 through bearings.

[0031] In this embodiment, as Figure 1 and Figure 3 The positioning post 15 is made of stainless steel. With the cooperation of the electromagnet 16 and the positioning post 15, the mounting plate 14 and the die-cutting blade 10 can be easily installed under the moving plate 18, which makes it easier for the device to die-cut flame-retardant foam into different sizes and shapes, thus enhancing the practicality of the device.

[0032] In a preferred embodiment, the clamping plate 11 screwed to the adjusting bolt 12 has a rectangular structure, the fitting part fixedly connected to the lower surface of the clamping plate 11 has a long strip structure, and the positioning post 15 fixedly connected to the upper surface of the mounting plate 14 has a U-shaped cross section. At the same time, fitting grooves are opened at the positions of the fitting parts at both ends of the mounting plate 14.

[0033] In this embodiment, as Figure 1 and Figure 3 The sizes of the fitting part and the fitting groove are matched. Then, when the adjusting bolt 12 pushes the screwed clamping plate 11 to move, the fitting part of the clamping plate 11 can be smoothly inserted into the fitting groove, thereby realizing the secondary fixation between the mounting plate 14 and the moving plate 18, thus avoiding the chance of the die-cutting knife 10 falling and being damaged due to accident.

Claims

1. A molding apparatus for producing flame-retardant foam, comprising: The base (1) is characterized in that: the upper surface of the base (1) is fixedly connected to the mounting frame (13) and the die-cutting seat (4), the upper surface of the mounting frame (13) is fixedly connected to the hydraulic cylinder (17), and the telescopic rod of the hydraulic cylinder (17) is fixedly connected to the moving plate (18). The lower surface of the moving plate (18) is fixedly connected to the mounting plate (14) and the die-cutting blade (10), and the inner cavity of the die-cutting seat (4) is slidably connected to the pressure plate (9). The lower surface of the pressure plate (9) is fixedly connected to the buffer plate (5), and the lower end of the buffer plate (5) slides through the through-hole opened in the base (1). Connected inside the limiting plate (3), the limiting plate (3) is fixedly connected to the top of the inner cavity of the base (1). The bottom of the inner cavity of the limiting plate (3) has symmetrical through holes, and the position of the lower surface of the buffer plate (5) relative to the through holes is connected to the secondary positioning rod (19). The surface of the secondary positioning rod (19) is fitted with an elastic element, and the two ends of the pressure plate (9) are fixedly connected to the auxiliary plate (6) through the fixing block (7). The auxiliary plate (6) is fitted with the main positioning rod (8), and the lower end of the main positioning rod (8) is fixedly connected to the upper surface of the base (1). The lower end of the main positioning rod (8) is fitted with an elastic element.

2. The molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, The base (1) has a square cylindrical structure. Multiple sets of reinforcing plates (2) are fixedly connected in parallel and at equal intervals in the inner cavity of the base (1). The reinforcing plates (2) have a rectangular structure, and the cross section formed by the combination of the reinforcing plates (2) and the base (1) has a V-shaped structure.

3. The molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, The buffer plate (5) has a rectangular structure. The through-hole size of the buffer plate (5) and the base (1) is matched. Multiple sets of auxiliary positioning rods (19) are fixedly connected at equal intervals along the length direction on the lower surface of the buffer plate (5). At the same time, the multiple sets of auxiliary positioning rods (19) are all cylindrical structures.

4. A molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, The limiting plate (3) has a U-shaped structure. The inner cavity of the limiting plate (3) and the lower end of the buffer plate (5) are matched. The secondary positioning rod (19) and the through hole are matched.

5. A molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, The pressure plate (9) has a rectangular structure. The dimensions of the pressure plate (9) and the inner cavity of the die-cutting seat (4) are matched. The cross section formed by the pressure plate (9) and the buffer plate (5) is T-shaped. The die-cutting pad is fixedly connected to the upper surface of the pressure plate (9).

6. A molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, Multiple sets of fixing blocks (7) are fixedly connected at equal intervals at both ends of the pressure plate (9). The multiple sets of fixing blocks (7) are all rectangular in structure. A through groove is opened on the side of the die-cutting seat (4) relative to the position of the fixing block (7). The through groove is rectangular in structure. At the same time, multiple sets of fixing blocks (7) at the same end of the pressure plate (9) are fixedly connected to the same set of auxiliary plates (6). The auxiliary plates (6) and fixing blocks (7) are combined together to form an E-shaped structure.

7. A molding apparatus for producing flame-retardant foam according to claim 1, characterized in that, The movable plate (18) has a rectangular structure. Two sets of mounting slots are symmetrically opened inside the movable plate (18). The cross-section of the two sets of mounting slots is convex. The upper end of the mounting slot is fixedly connected to an electromagnet (16), while the lower end of the mounting slot is matched with the size of the positioning column (15). At the same time, the two ends of the movable plate (18) are movably connected to adjusting bolts (12) through bearings.

8. A molding apparatus for producing flame-retardant foam according to claim 7, characterized in that, The clamping plate (11) screwed by the adjusting bolt (12) has a rectangular structure, and the fitting part fixedly connected to the lower surface of the clamping plate (11) has a long strip structure. The positioning column (15) fixedly connected to the upper surface of the mounting plate (14) has a U-shaped cross section. At the same time, the fitting grooves are opened at the positions of the fitting parts at both ends of the mounting plate (14).