Pre-foaming foamed plastic storage cage
By designing a storage cage for pre-foamed plastic, and using dry hot air to agitate the particles, the problem of moisture loss during the storage of pre-foamed particles was solved, thus improving the molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建裕巨包装材料有限公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-05
AI Technical Summary
Existing pre-expanded polystyrene granules are prone to squeezing against each other during storage, making it difficult for moisture to evaporate and affecting the final molding quality.
A pre-foamed plastic storage cage was designed. By combining a mounting frame, a heightening frame, a mesh screen, a ventilation pipe, and a hot air blower, the pre-foamed particles are disturbed by dry hot air, which evaporates the moisture in the particles.
It effectively reduces the moisture content of pre-foamed granules, improves the molding effect, and ensures the efficient operation of molding equipment.
Smart Images

Figure CN224198408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foam plastic production equipment, specifically a pre-foamed foam plastic storage cage. Background Technology
[0002] Foamed plastic is a material formed by the expansion of polystyrene particles under high pressure steam. After being molded by high temperature steam, it can form a tightly arranged foam product. After drying, a foamed plastic product with high hardness can be obtained.
[0003] When producing polystyrene using existing processes, it is necessary to pre-foam the polystyrene particles to allow them to expand in volume beforehand. Then, during high-temperature steam molding, the pre-foamed polystyrene particles are injected into the mold, reducing the time required for high-temperature steam molding.
[0004] However, after pre-foaming, the pre-foamed granules in the ordinary storage cage are squeezed together, and the presence of moisture in the granules will affect the final molding process. The granules located in the middle of the storage cage have difficulty dissipating moisture, resulting in a defect of high humidity in the pre-foamed plastic granules in the storage cage.
[0005] Based on this, the present invention designs a pre-foamed plastic storage cage to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a pre-foamed plastic storage cage to solve the above-mentioned technical problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes a mounting frame, on which a heightening frame is fixedly mounted; a mesh screen is fixedly mounted around the mounting frame and the heightening frame, the mesh screen being ring-shaped; a discharge hopper is fixedly mounted at the bottom of the mounting frame, a discharge valve is fixedly mounted on the discharge hopper, and a ventilation pipe is fixedly mounted on the discharge hopper, the ventilation pipe being placed within the heightening frame; the ventilation pipe has multiple ventilation openings; an end plate is fixedly mounted on the end of the ventilation pipe away from the discharge hopper; a filter screen is fixedly mounted on the end of the ventilation pipe near the hopper; a hot air blower is fixedly mounted on the mounting frame, and the outlet of the hot air blower is connected to the end of the ventilation pipe with the filter screen.
[0008] By adopting the above technical solution, the hot air blower blows warm and dry air through the ventilation pipe into the pre-foamed particles in the mounting frame and the riser frame. This causes the pre-foamed particles, which are being squeezed together, to be constantly disturbed by the dry hot air. This allows the pre-foamed particles that are squeezed in the middle to have space to evaporate the moisture on their own, thereby reducing the humidity of the raw materials when they are conveyed into the molding equipment and improving the molding effect.
[0009] Preferably, a butterfly valve is fixedly installed on the ventilation duct, and the valve divides the ventilation duct into two sections.
[0010] By adopting the above technical solution, the butterfly valve can divide the ventilation pipe into two sections and control the outflow height of the drying hot airflow according to the storage amount of pre-foamed particles in the storage cage.
[0011] Preferably, multiple butterfly valves are provided.
[0012] By adopting the above technical solution, the outflow height of the dry hot airflow can be controlled more precisely, thereby improving the utilization rate of the dry hot airflow.
[0013] Preferably, an anti-intrusion net is fixedly installed on the ventilation opening.
[0014] By adopting the above technical solution, the anti-intrusion mesh is installed to prevent pre-foamed particles from entering the ventilation duct from the vent and causing blockage when the airflow intensity is low.
[0015] Preferably, a reinforcing plate is connected between the riser and the end plate, and multiple reinforcing plates are provided.
[0016] By adopting the above technical solution, the reinforcing plate is connected between the ventilation duct and the riser frame, which improves the structural strength of the ventilation duct and ensures the stability of the ventilation duct during the operation of the hot air blower.
[0017] In summary, this application has the following beneficial technical effects: by blowing warm and dry air through a hot air blower into the pre-foamed particles in the mounting frame and the riser frame through a ventilation pipe, the pre-foamed particles that are being squeezed together are constantly disturbed by the dry hot air. This allows the pre-foamed particles that are squeezed in the middle to have space to evaporate the moisture on their own, thereby reducing the humidity of the raw material when it is conveyed into the molding equipment and improving the molding effect. It also has the advantage of reducing the humidity of the pre-foamed particles in the storage cage. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the mounting bracket structure in this embodiment;
[0020] Figure 2 This is a schematic diagram of the ventilation duct installation in this embodiment;
[0021] Figure 3 This is a cross-sectional view of the ventilation duct structure in this embodiment.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Mounting frame; 2. Elevator frame; 3. Mesh screen; 4. Discharge hopper; 5. Discharge valve; 6. Ventilation pipe; 7. End plate; 8. Reinforcing plate; 9. Anti-intrusion mesh; 10. Filter screen; 11. Butterfly valve; 12. Hot air blower. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] The following is in conjunction with the appendix Figure 1 —3 provides further detailed description of this application.
[0026] A pre-foamed plastic storage cage includes a mounting frame 1; a heightening frame 2 is fixedly mounted on the mounting frame 1, and a mesh 3 is fixedly mounted around the mounting frame 1 and the heightening frame 2, the mesh 3 being in a ring shape.
[0027] A discharge hopper 4 is fixedly installed at the bottom of the mounting frame 1. A discharge valve 5 is fixedly installed on the discharge hopper 4. A ventilation pipe 6 is fixedly installed on the discharge hopper 4. The ventilation pipe 6 is placed in the riser frame 2. An end plate 7 is fixedly installed at the end of the ventilation pipe 6 away from the discharge hopper 4. A reinforcing plate 8 is connected between the riser frame 2 and the end plate 7. There are four reinforcing plates 8.
[0028] Ventilation duct 6 has ventilation openings (not shown in the figure), and anti-intrusion nets 9 are fixedly installed on the ventilation openings. There are multiple ventilation openings. A filter screen 10 is fixedly installed on one end of the ventilation duct 6 near the hopper. Three butterfly valves 11 are fixedly installed on the ventilation duct 6, and the valves divide the ventilation duct 6 into multiple sections.
[0029] A hot air blower 12 is fixedly installed on the mounting bracket 1, and the air outlet of the hot air blower 12 is connected to one end of the ventilation pipe 6 where a filter screen 10 is installed.
[0030] The implementation principle of this embodiment is as follows: When the storage cage is working, the pre-foamed granules are conveyed into the storage cage from the top of the riser 2. When needed, the output of the pre-foamed granules is controlled by the discharge valve 5 on the discharge hopper 4. At the same time, the hot air blower 12 is working. After being filtered by the filter screen 10, the dry hot air flows through the ventilation pipe 6 and then escapes into the storage cage through the ventilation port. This causes the pre-foamed granules in the storage cage to be disturbed, and the pre-foamed granules that are squeezed against each other can evaporate their own moisture. At the same time, during storage, the opening and closing state of the three butterfly valves 11 is selected by the amount of pre-foamed granules stored, so that the pre-foamed granules cover the ventilation port from which the dry hot air escapes, improving the utilization rate of the dry hot air and achieving the purpose of reducing the humidity of the pre-foamed granules in the storage cage.
[0031] The hot air blower 12 blows warm, dry air through the ventilation pipe 6 into the pre-foamed particles in the mounting frame 1 and the riser frame 2. This causes the pre-foamed particles, which are being squeezed together, to be constantly disturbed by the dry, hot air. This allows the pre-foamed particles in the middle to have space to evaporate their moisture, reducing the humidity of the raw material when it is conveyed into the molding equipment and improving the molding effect. It has the advantage of reducing the humidity of the pre-foamed particles in the storage cage.
[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pre-foamed plastic storage cage, characterized in that: The system includes a mounting frame (1), on which a heightening frame (2) is fixedly mounted. A mesh (3) is fixedly mounted around the mounting frame (1) and the heightening frame (2), and the mesh (3) is in a ring shape. A discharge hopper (4) is fixedly mounted at the bottom of the mounting frame (1), and a discharge valve (5) is fixedly mounted on the discharge hopper (4). A ventilation pipe (6) is fixedly mounted on the discharge hopper (4), and the ventilation pipe (6) is placed in the heightening frame (2). A ventilation opening is provided on the ventilation pipe (6), and multiple ventilation openings are provided. An end plate (7) is fixedly mounted on the end of the ventilation pipe (6) away from the discharge hopper (4). A filter screen (10) is fixedly mounted on the end of the ventilation pipe (6) near the hopper. A hot air blower (12) is fixedly mounted on the mounting frame (1), and the air outlet of the hot air blower (12) is connected to the end of the ventilation pipe (6) where the filter screen (10) is located.
2. The pre-foamed plastic storage cage according to claim 1, characterized in that: A butterfly valve (11) is fixedly installed on the ventilation pipe (6).
3. The pre-foamed plastic storage cage according to claim 2, characterized in that: Multiple butterfly valves (11) are provided.
4. The pre-foamed plastic storage cage according to claim 1, characterized in that: An anti-intrusion net (9) is fixedly installed on the ventilation opening.
5. The pre-foamed plastic storage cage according to claim 1, characterized in that: A reinforcing plate (8) is connected between the height-increasing frame (2) and the end plate (7), and multiple reinforcing plates (8) are provided.