Forming device for EPS foam production
The EPS foam production device, which uses a hydraulic cylinder to push a pressure plate to extrude and cool the EPS foam, solves the problems of high temperature and long cooling time after EPS foam molding, and achieves efficient production and safe operation.
Patent Information
- Application Number
- CN202423029378.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing EPS foams have high temperatures after molding, and their sticky surface makes them difficult to remove completely. They also have long cooling times, which affects production efficiency.
A molding device for EPS foam production was designed, comprising a hydraulic cylinder pushing a pressure plate to squeeze the foam in the molding box, which is then conveyed to a cooling box for cooling by a conveyor and a cold air fan to ensure that the foam is separated from the molding box and can be easily removed directly.
It improves the production efficiency of foam molding, avoids manual operation in high-temperature environments, and ensures personnel safety.
Smart Images
Figure CN223493720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EPS foam production technology, and more specifically to a molding device for EPS foam production. Background Technology
[0002] EPS foam is a lightweight porous polymer. It is made by adding a foaming agent to polystyrene resin and heating it to create a closed honeycomb structure containing air bubbles. Finally, the structure of the foam is fixed by molding equipment to obtain foam plastic products. Ultimately, a lightweight polymer foam plastic is produced, which has the characteristics of strong heat insulation, light weight, low water absorption, and high strength.
[0003] The shortcomings of existing technologies: Foam molding in existing technologies is usually carried out at high temperatures. The foam after molding is at a high temperature, so the surface is sticky and will stick to the inner wall of the mold. Using tools to remove the molded foam from the mold will damage the integrity of the foam surface and affect the quality of the foam product. Furthermore, the foam molding device in existing technologies needs to wait for the foam to cool down before removing it from the mold. The cooling time is long, resulting in low production efficiency. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a molding device for EPS foam production, which solves the problems of high temperature of the molded foam, certain stickiness on the surface, inability to be completely removed from the mold, and long cooling time, resulting in low work efficiency.
[0005] This utility model provides the following technical solution: a molding device for EPS foam production, including an operating table and a support frame fixedly installed on one side of its top. An installation groove is opened on one side of the top of the operating table, and a conveyor is provided in the inner cavity of the installation groove. Two limiting blocks are fixedly connected at equal distances on the other side of the top of the operating table, and a molding box for foam molding is provided between the two limiting blocks. A hydraulic cylinder is fixedly installed at the bottom of the support frame, and a pressure plate is fixedly connected to the extended end of the hydraulic cylinder. A pushing mechanism for picking up materials is provided above the pressure plate.
[0006] The pushing mechanism includes an L-shaped push rod located above the pressure plate, with an insert rod fixedly connected to the middle of the L-shaped push rod, and a push plate provided at one end of the molding box.
[0007] Preferably, the push plate is movably connected between two limiting blocks, and the shape and size of the pressure plate are adapted to the shape and size of the inner cavity of the molding box, and the pressure plate is movably connected to the inner cavity of the molding box.
[0008] Preferably, one end of the L-shaped push rod is rotatably connected to a connecting shaft, the other end of the L-shaped push rod is fixedly connected to a connecting block, and the end of the push plate near the L-shaped push rod is fixedly connected to a rotating connecting piece.
[0009] Preferably, the middle part of the connecting shaft is fixedly connected to one side of the extended end of the hydraulic cylinder, and the connecting block is rotatably connected to the middle part of the inner cavity of the rotating connecting member.
[0010] Preferably, guide blocks are fixedly connected to both sides of the inner wall of the support frame, and a groove is provided in the middle of the guide block. The two ends of the insertion rod away from the L-shaped push rod are respectively movably connected to the inner cavity of the two grooves.
[0011] Preferably, a cooling box is fixedly installed on the top of the operating table away from the support frame, and two cold air fans are fixedly installed on the top of the cooling box, which is located above the conveyor.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model uses a molding box to fix the shape of the foam. The heated foam raw material is added to the inner cavity of the molding box, and the pressure plate is pushed downward by a hydraulic cylinder to squeeze the foam into shape in the inner cavity of the molding box. After molding, the molding box is directly conveyed to the inner cavity of the cooling box by a conveyor. The molding box is cooled by a cold air fan. After cooling, the foam shape is fixed and forms foam plastic, which will separate from the inner wall of the molding box. The foam can then be directly removed from the inner cavity of the molding box, which effectively improves production efficiency.
[0014] 2. This utility model has a pushing mechanism that allows the extruded foam to be directly pushed onto the conveyor. After the hydraulic cylinder pushes the pressure plate downward to extrude the foam, the extended end of the hydraulic cylinder retracts to its shortest length, causing the L-shaped push rod to rotate upward. This causes the other end of the L-shaped push rod to push the push plate to move between the two limit blocks, so that the push plate pushes the forming box to the top of the conveyor for transmission. This avoids the risk of injury to personnel caused by manual handling of materials in high-temperature environments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the propulsion mechanism of this utility model.
[0017] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 1 .
[0018] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 2 .
[0019] The attached diagram is labeled as follows: 1. Operating table; 2. Mounting slot; 3. Transmitter; 4. Support frame; 5. Limiting block; 6. Forming box; 7. Hydraulic cylinder; 8. Pressure plate; 9. Pushing mechanism; 91. L-shaped push rod; 92. Connecting shaft; 93. Insert rod; 94. Push plate; 95. Connecting block; 96. Rotating connector; 10. Guide block; 11. Cooling box; 12. Air cooler. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The molding device for EPS foam production involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] This utility model provides a molding device for EPS foam production, such as... Figure 1 - Figure 4 As shown, it includes an operating table 1 and a support frame 4 fixedly installed on one side of its top. An installation groove 2 is provided on one side of the top of the operating table 1. A conveyor 3 is provided in the inner cavity of the installation groove 2. Two limit blocks 5 are fixedly connected at equal distances on the other side of the top of the operating table 1. A molding box 6 for foam molding is provided between the two limit blocks 5. A hydraulic cylinder 7 is fixedly installed at the bottom of the support frame 4. A pressure plate 8 is fixedly connected to the extended end of the hydraulic cylinder 7. A pushing mechanism 9 for picking up materials is provided above the pressure plate 8.
[0022] Furthermore, such as Figure 2 As shown, the pushing mechanism 9 includes an L-shaped push rod 91 located above the pressure plate 8, with a plug rod 93 fixedly connected to the middle of the L-shaped push rod 91, and a push plate 94 provided at one end of the molding box 6.
[0023] Furthermore, such as Figure 1 and Figure 2 As shown, the push plate 94 is movably connected between two limiting blocks 5. The limiting blocks 5 ensure the stability of the push plate 94 during movement. The shape and size of the pressure plate 8 are adapted to the shape and size of the inner cavity of the molding box 6. The pressure plate 8 is movably connected to the inner cavity of the molding box 6. The extension end of the hydraulic cylinder 7 drives the pressure plate 8 to move up and down. After the heated foam material is added to the inner cavity of the molding box 6, the extension end of the hydraulic cylinder 7 pushes the pressure plate 8 downward in the inner cavity of the molding box 6, so that the foam is squeezed into shape.
[0024] Furthermore, such as Figure 2As shown, one end of the L-shaped push rod 91 is rotatably connected to the connecting shaft 92, and the other end of the L-shaped push rod 91 is fixedly connected to the connecting block 95. The end of the push plate 94 near the L-shaped push rod 91 is fixedly connected to the rotating connecting piece 96.
[0025] Furthermore, such as Figure 3 and Figure 4 As shown, the middle part of the connecting shaft 92 is fixedly connected to one side of the extended end of the hydraulic cylinder 7, and the connecting block 95 is rotatably connected to the middle of the inner cavity of the rotating connecting piece 96. After the hydraulic cylinder 7 drives the pressure plate 8 to squeeze in the inner cavity of the forming box 6, the extended end of the hydraulic cylinder 7 retracts upward. During the retraction process, the L-shaped push rod 91 rotates on one side of the extended end of the hydraulic cylinder 7 through the connecting shaft 92. At the same time, the connecting block 95 also rotates in the inner cavity of the rotating connecting piece 96, so that the push plate 94 always remains vertical. During the retraction process of the extended end of the hydraulic cylinder 7, the L-shaped push rod 91 also rotates continuously through the connecting shaft 92, so that the L-shaped push rod 91 pushes the push plate 94 to move between the two limit blocks 5, and pushes the forming box 6 to move towards the conveyor 3. When the extended end of the hydraulic cylinder 7 retracts to its shortest length, the forming box 6 moves to the top side of the conveyor 3. The conveyor 3 moves the forming box 6, avoiding the situation where personnel are injured due to manual material handling in a high-temperature environment.
[0026] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, guide blocks 10 are fixedly connected to both sides of the inner wall of the support frame 4. A groove is provided in the middle of the guide block 10. The two ends of the insertion rod 93 away from the L-shaped push rod 91 are movably connected to the inner cavity of the two grooves respectively. As the L-shaped push rod 91 rotates, the insertion rod 93 moves in the inner cavity of the groove in the middle of the guide block 10 according to the rotation of the L-shaped push rod 91. The stability of the movement of the L-shaped push rod 91 is ensured by the insertion rod 93.
[0027] Furthermore, such as Figure 3 and Figure 4 As shown, a cooling box 11 is fixedly installed on the top of the operating table 1 away from the support frame 4. Two air coolers 12 are fixedly installed on the top of the cooling box 11. The cooling box 11 is located above the conveyor 3. The extruded molding box 6 is at a high temperature and is transported into the cooling box 11 by the conveyor 3. Cooling air is provided by the air coolers 12 to cool the molding box 6. After cooling, the foam shape is fixed and foam plastic is formed, which will separate from the inner wall of the molding box 6. The foam can then be directly taken out from the inner cavity of the molding box 6, which effectively improves production efficiency.
[0028] The working principle of this utility model is as follows: First, heated foam material is added to the inner cavity of the molding box 6. Then, the hydraulic cylinder 7 is activated. When the extended end of the hydraulic cylinder 7 is in its initial position, the pressure plate 8 is located above the molding box 6, and the molding box 6 is located between the two limiting blocks 5. After the material is added, the extended end of the hydraulic cylinder 7 extends to its maximum length, pushing the pressure plate 8 downward in the inner cavity of the molding box 6, so that the foam material is squeezed and shaped. After the squeezing is completed, the extended end of the hydraulic cylinder 7 retracts upward. During the retraction process, the L-shaped push rod 91 rotates on one side of the extended end of the hydraulic cylinder 7 through the connecting shaft 92. At the same time, the connecting block 95 also rotates in the inner cavity of the rotating connecting piece 96, so that the push plate 94 always remains in a vertical state. During the retraction process of the extended end of the hydraulic cylinder 7, the L-shaped push rod 91 rotates on one side of the extended end of the hydraulic cylinder 7. The rod 91 also rotates continuously through the connecting shaft 92, causing the L-shaped push rod 91 to push the push plate 94 between the two limit blocks 5. The push plate 94 pushes the molding box 6 towards the conveyor 3, avoiding manual material handling in a high-temperature environment, which could lead to injury. When the extended end of the hydraulic cylinder 7 retracts to its shortest length, the molding box 6 moves to the top side of the conveyor 3. The conveyor 3 moves the molding box 6 into the inner cavity of the cooling box 11. Then, the cold air fan 12 is started to provide cooling air, which cools the molding box 6. After cooling, the foam shape is fixed and forms foam plastic, which separates from the inner wall of the molding box 6. The foam can then be directly removed from the inner cavity of the molding box 6, effectively improving production efficiency.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A molding device for EPS foam production, comprising an operating table (1) and a support frame (4) fixedly installed on one side of its top, characterized in that: The top side of the operating table (1) is provided with an installation groove (2), and the inner cavity of the installation groove (2) is provided with a conveyor (3). Two limiting blocks (5) are fixedly connected at equal distances on the other side of the top of the operating table (1). A molding box (6) for foam molding is provided between the two limiting blocks (5). A hydraulic cylinder (7) is fixedly installed at the bottom of the support frame (4). A pressure plate (8) is fixedly connected to the extended end of the hydraulic cylinder (7). A pushing mechanism (9) for picking up materials is provided above the pressure plate (8). The pushing mechanism (9) includes an L-shaped push rod (91) located above the pressure plate (8), with a plug rod (93) fixedly connected to the middle of the L-shaped push rod (91), and a push plate (94) provided at one end of the molding box (6).
2. The molding device for EPS foam production according to claim 1, characterized in that: The push plate (94) is movably connected between two limiting blocks (5), and the shape and size of the pressure plate (8) are adapted to the shape and size of the inner cavity of the molding box (6). The pressure plate (8) is movably connected to the inner cavity of the molding box (6).
3. The molding device for EPS foam production according to claim 1, characterized in that: One end of the L-shaped push rod (91) is rotatably connected to a connecting shaft (92), and the other end of the L-shaped push rod (91) is fixedly connected to a connecting block (95). The push plate (94) is fixedly connected to a rotating connector (96) at the end near the L-shaped push rod (91).
4. The molding device for EPS foam production according to claim 3, characterized in that: The middle part of the connecting shaft (92) is fixedly connected to one side of the extended end of the hydraulic cylinder (7), and the connecting block (95) is rotatably connected to the middle part of the inner cavity of the rotating connecting piece (96).
5. The molding device for EPS foam production according to claim 1, characterized in that: Guide blocks (10) are fixedly connected to both sides of the inner wall of the support frame (4). A groove is provided in the middle of the guide block (10). The two ends of the insertion rod (93) away from the L-shaped push rod (91) are respectively movably connected to the inner cavity of the two grooves.
6. The molding device for EPS foam production according to claim 1, characterized in that: A cooling box (11) is fixedly installed on the top of the operating table (1) away from the support frame (4). Two air coolers (12) are fixedly installed on the top of the cooling box (11). The cooling box (11) is located above the conveyor (3).