An EPS foam particle curing box
By designing a rotating mesh cylinder and a striking block structure, the problem of adhesion caused by uneven ventilation in the EPS foam particle curing box was solved, achieving uniform curing of foam particles and efficient production, thus improving product quality and the quietness of the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI GERUI PLASTIC CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-03
AI Technical Summary
The ventilation mechanism of the existing EPS foam particle curing box has a fixed position that makes it difficult to cover the entire box. As a result, the foam particles at the bottom are prone to sticking together due to insufficient airflow, which affects the curing uniformity and efficiency.
The system employs a rotating mesh cylinder and a drive motor in conjunction with a striking block structure. The striking action on the outer wall of the rotating mesh cylinder breaks the adhesion between foam particles, and a hot air blower provides a uniform flow of hot air to ensure that each particle is fully in contact with the air.
It effectively prevents foam particles from clumping, improves curing uniformity and efficiency, reduces noise, provides a stable working environment, and improves product quality and production efficiency.
Smart Images

Figure CN224446624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foam particle processing, specifically to an EPS foam particle maturation box. Background Technology
[0002] EPS foam granules, also known as expanded polystyrene, possess advantages such as low relative density, low thermal conductivity, low water absorption, impact and vibration resistance, heat insulation, sound insulation, moisture resistance, vibration damping, and excellent dielectric properties. They are widely used as shockproof packaging materials for machinery, instruments, household appliances, handicrafts, and other fragile and valuable products, as well as for fast food packaging. When processing EPS foam granules, the foamed granules need to be cured first, requiring the use of a curing box. During the curing process, the foam granules tend to adhere to the inner wall of the curing box.
[0003] Chinese patent CN221756616U discloses an EPS foam particle curing box, which includes a box body, support legs, a feed inlet and a discharge outlet. Support legs are fixed to the four corners of the bottom of the box body. A feed inlet is opened at the top of the box body. A discharge outlet is opened at the bottom of the front surface of the box body. A ventilation mechanism is installed on the outer wall of the box body.
[0004] In the above solution, the rotation of the motor can drive the rotating rod to rotate, which in turn drives the spiral blade to rotate. The foam particles lifted to the top of the spiral blade will fall in an umbrella shape. This results in the following disadvantages: the ventilation mechanism delivers air in a fixed position, which is difficult to cover the entire box. The foam particles at the bottom are prone to sticking together due to insufficient airflow. Utility Model Content
[0005] The purpose of this invention is to provide an EPS foam particle curing box to solve the problem that the ventilation mechanism delivers air in a fixed position, which makes it difficult to cover the entire box, and the foam particles at the bottom tend to stick together due to insufficient airflow.
[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an EPS foam particle curing box, comprising a rotating mesh cylinder, the rotating mesh cylinder being rotatably mounted on the inner wall of the box, a drive motor being fixed to the outer left side of the box, one end of the output shaft of the drive motor passing through the rotating mesh cylinder and extending to the right side of the inner wall of the box, the rotating mesh cylinder being fixed to the outer wall of the output shaft of the drive motor, a plurality of abutting blocks being fixed to the outer wall of the rotating mesh cylinder, a plurality of connecting plates being fixed to the outer wall of the rotating mesh cylinder, a plurality of mounting grooves being provided on both the front and rear sides of the inner wall of the box, two springs being fixed to the inner wall of the mounting groove, and a striking block being fixed to the other end of the spring, the striking block contacting the abutting block, and the striking block being slidably connected in the mounting groove.
[0007] Preferably, mounting holes are provided on both the left and right sides of the housing, and a hot air blower is fixed to the inner wall of the mounting holes. A protective cover is rotatably connected to the top surface of the housing via a hinge, and an air outlet is provided on the protective cover.
[0008] Preferably, sliding grooves are provided on both the left and right sides of the inner wall of the mounting groove, and sliding blocks are fixed on both the left and right sides of the striking block. The sliding blocks are slidably connected to the sliding grooves, and rollers are rotatably provided on the sliding blocks.
[0009] Preferably, a sealing gasket is fixed to the bottom surface of the protective cover, and the sealing gasket is in contact with the top surface of the box.
[0010] Preferably, the front side of the box has a placement groove, the inner wall of the placement groove is slidably connected to a collection box, and the bottom surface of the box has a discharge port, which is connected to the placement groove.
[0011] Preferably, the top surface of the box has two receiving slots, and the inner wall of the receiving slots is filled with a sound-insulating foam layer.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. Through the cooperation of the drive motor, abutment block, connecting plate, spring, and striking block, the outer wall of the rotating screen cylinder is struck during the curing process of the foam particles. This effectively breaks up the adhesion between foam particles, prevents them from clumping, and ensures that each foam particle has sufficient contact with air, thereby guaranteeing the uniformity of curing and improving product quality. During the curing process of EPS foam particles, certain temperature conditions are required to promote the curing reaction. A hot air blower can deliver hot air into the chamber, increasing the temperature inside the chamber and accelerating the curing speed of the foam particles, allowing them to reach the curing requirements more quickly and improving production efficiency.
[0014] Second, the rollers reduce the friction between the sliding block and the sliding groove during the movement of the striking block, making the movement smoother and ensuring the striking efficiency, thus improving the practicality of the rollers. The sealing gasket increases the seal between the protective cover and the box body, effectively reducing heat loss from the box and helping to maintain a stable temperature inside the box, ensuring the curing effect of the foam particles, thereby improving product quality.
[0015] Third, the collection box allows for the centralized collection of cured foam particles, facilitating subsequent processing by staff and preventing particles from scattering throughout the chamber, thus avoiding cleaning difficulties and material waste. The sound-absorbing foam layer absorbs and blocks noise generated by the impact of the blocks, reducing the diffusion of internal noise to the external environment and minimizing the impact on surrounding staff, providing a relatively quiet working environment. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.
[0017] Figure 2 This is a breakdown diagram of an embodiment.
[0018] Figure 3 This is a schematic diagram showing the disassembled parts of the abutment block and connecting plate in an embodiment.
[0019] Figure 4 This is a planar schematic diagram of the rotating mesh cylinder in an embodiment.
[0020] Figure 5 For the example Figure 2 Enlarged diagram of point A in the middle.
[0021] In the diagram: 1. Rotating mesh cylinder; 2. Box body; 3. Drive motor; 4. Abutting block; 5. Connecting plate; 6. Mounting groove; 7. Spring; 8. Striking block; 9. Mounting hole; 10. Hot air blower; 11. Protective cover; 12. Air outlet; 13. Sliding groove; 14. Sliding block; 15. Roller; 16. Sealing gasket; 17. Placement groove; 18. Collection box; 19. Discharge port; 20. Receiving groove; 21. Sound insulation foam layer. Detailed Implementation
[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0023] like Figures 1-5 As shown, an EPS foam particle maturation box includes a rotating mesh cylinder 1, which is rotatably mounted on the inner wall of a box body 2. The outer wall of the rotating mesh cylinder 1 is a mesh structure, and a feed inlet is provided on the outer wall of the rotating mesh cylinder 1. A drive motor 3 is fixed to the outer left side of the box body 2. One end of the output shaft of the drive motor 3 passes through the rotating mesh cylinder 1 and extends to the right side of the inner wall of the box body 2. The rotating mesh cylinder 1 is fixed to the outer wall of the output shaft of the drive motor 3. Several abutment blocks 4 are fixed to the outer wall of the rotating mesh cylinder 1. The outer wall of the box 2 is fixed with several connecting plates 5. The inner wall of the box 2 has several mounting slots 6 on both the front and rear sides. The inner wall of the mounting slot 6 is fixed with two springs 7. The other end of the spring 7 is fixed with a striking block 8. The striking block 8 is in contact with the abutting block 4. The striking block 8 is slidably connected in the mounting slot 6. The left and right sides of the box 2 are provided with mounting holes 9. The inner wall of the mounting hole 9 is fixed with a hot air blower 10. The top surface of the box 2 is rotatably connected with a protective cover 11 through a hinge. The protective cover 11 is provided with an air outlet 12.
[0024] When it is necessary to mature the foam particles during use, the feed port on the rotating screen cylinder 1 can be opened first, and then the foam particles can be put into the rotating screen cylinder 1 through the feed port. After that, the feed port is closed and the protective cover 11 is closed at the same time.
[0025] At this time, the drive motor 3 and the hot air blower 10 can be started. The drive motor 3 will drive the rotating mesh cylinder 1 to rotate counterclockwise on the inner wall of the box 2. The hot air blower 10 can deliver hot air into the box 2 to increase the temperature inside the box 2, so that the foam particles in the rotating mesh cylinder 1 can effectively contact the hot air. When the inclined surface on the abutting block 4 contacts the inclined surface on the striking block 8, the abutting block 4 will abut the striking block 8 under the rotational driving force. The striking block 8 will squeeze the spring 7 and retract into the mounting groove 6. When the abutting block 4 crosses the critical point, the striking block 8 will contact the restriction, and the spring 7 will restore its elastic performance. Thus, the spring 7 will push the striking block 8 to reset. At the same time, the striking block 8 will impact the connecting plate 5 under the action of the spring 7. Then, the connecting plate 5 will transmit the vibration force to the outer wall of the rotating mesh cylinder 1. Under the continuous knocking of the striking block 8, the vibration wave is transmitted to the particle layer through the outer wall of the rotating mesh cylinder 1, effectively deagglomerating the clumps of particles.
[0026] After the foam particles have matured, the protective cover 11 and the feed inlet can be opened. Then, the drive motor 3 can be controlled to rotate the feed inlet to the discharge outlet 19, so that the matured foam particles will slide through the discharge outlet 19 into the collection box 18 for centralized collection.
[0027] Through the cooperation of the drive motor 3, the abutment block 4, the connecting plate 5, the spring 7, and the striking block 8, the outer wall of the rotating mesh cylinder 1 can be struck during the curing process of the foam particles. This effectively breaks the adhesion between the foam particles, prevents them from clumping, and ensures that each foam particle has sufficient contact with the air, thereby guaranteeing the uniformity of the curing process and improving product quality. During the curing process of EPS foam particles, certain temperature conditions are required to promote the curing reaction. The hot air blower 10 can deliver hot air into the chamber 2, increasing the temperature inside the chamber 2 and accelerating the curing speed of the foam particles, allowing them to reach the curing requirements more quickly and improving production efficiency.
[0028] like Figure 1 , Figure 2 and Figure 5As shown, sliding grooves 13 are provided on both the left and right sides of the inner wall of the mounting groove 6. Sliding blocks 14 are fixed on both the left and right sides of the striking block 8. The sliding blocks 14 are slidably connected to the sliding grooves 13. Rollers 15 are rotatably provided on the sliding blocks 14. A sealing gasket 16 is fixed on the bottom surface of the protective cover 11. The sealing gasket 16 is in contact with the top surface of the box 2. A placement groove 17 is provided on the front side of the box 2. A collection box 18 is slidably connected to the inner wall of the placement groove 17. A discharge port 19 is provided on the bottom surface of the box 2. The discharge port 19 is connected to the placement groove 17. Two receiving grooves 20 are provided on the top surface of the box 2. The inner wall of the receiving grooves 20 is filled with a sound-insulating foam layer 21.
[0029] During use, the rollers 15 reduce the friction between the sliding block 14 and the sliding groove 13 when the striking block 8 moves, making the striking block 8 move more smoothly and ensuring its striking efficiency, thus improving the practicality of the rollers 15. The sealing gasket 16 increases the seal between the protective cover 11 and the box 2, effectively reducing heat loss inside the box 2 and helping to maintain a stable temperature inside the box 2, ensuring the curing effect of the foam particles and thus improving product quality. The collection box 18 allows for the centralized collection of the cured foam particles, facilitating subsequent processing by staff and preventing foam particles from scattering throughout the box 2, causing cleaning difficulties and material waste. The sound-insulating foam layer 21 absorbs and blocks the noise generated by the striking block 8, reducing the diffusion of noise from inside the box 2 to the external environment, thereby reducing the impact on surrounding staff and providing a relatively quiet working environment.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An EPS foam particle maturation box comprising a rotating mesh cylinder (1) which is rotatably arranged on the inner wall of a box body (2), characterized in that, A drive motor (3) is fixed to the outside of the left side of the box (2). One end of the output shaft of the drive motor (3) passes through the rotating mesh cylinder (1) and extends to the right side of the inner wall of the box (2). The rotating mesh cylinder (1) is fixed to the outer wall of the output shaft of the drive motor (3). Several abutting blocks (4) are fixed to the outer wall of the rotating mesh cylinder (1). Several connecting plates (5) are fixed to the outer wall of the rotating mesh cylinder (1). Several mounting slots (6) are opened on both the front and rear sides of the inner wall of the box (2). Two springs (7) are fixed to the inner wall of the mounting slot (6). A striking block (8) is fixed to the other end of the spring (7). The striking block (8) is in contact with the abutting block (4). The striking block (8) is slidably connected in the mounting slot (6).
2. An EPS foam particle maturation bin according to claim 1, characterised in that: The box (2) has mounting holes (9) on both the left and right sides. A hot air blower (10) is fixed to the inner wall of the mounting hole (9). A protective cover (11) is rotatably connected to the top surface of the box (2) via a hinge. An air outlet (12) is provided on the protective cover (11).
3. An EPS foam particle maturation bin according to claim 1, characterised in that: The inner wall of the mounting groove (6) is provided with sliding grooves (13) on both the left and right sides. The left and right sides of the striking block (8) are fixed with sliding blocks (14). The sliding blocks (14) are slidably connected to the sliding grooves (13). Rollers (15) are rotatably provided on the sliding blocks (14).
4. An EPS foam particle maturation bin according to claim 2, characterised in that: A sealing gasket (16) is fixed to the bottom surface of the protective cover (11), and the sealing gasket (16) is in contact with the top surface of the box (2).
5. An EPS foam particle maturation bin according to claim 4, characterised in that: The front side of the box (2) is provided with a placement groove (17), and a collection box (18) is slidably connected to the inner wall of the placement groove (17). The bottom surface of the box (2) is provided with a discharge port (19), and the discharge port (19) is connected to the placement groove (17).
6. An EPS foam particle maturation bin according to claim 5, characterised in that: The top surface of the box (2) has two receiving slots (20), and the inner wall of the receiving slots (20) is filled with a sound-insulating foam layer (21).