PET foam board particle foaming machine
By introducing a first stirring mechanism and a second stirring mechanism into the PET foam board granule foaming machine, the problem of uneven foaming is solved, and uniform heating and efficient mixing of the granules are achieved, resulting in high-quality foamed granules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SAIYINUO NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-17
AI Technical Summary
Existing PET foam board granule foaming machines have the problem of uneven foaming, resulting in uneven granule mixing.
The first and second stirring mechanisms work together, with the first motor driving the first stirring rod for mixing and the second motor driving the stirring frame and the second stirring rod for stirring, ensuring that the particles are heated evenly and forming uniformly foamed particles.
This process achieves uniform heating and foaming of the particles, improves mixing efficiency, and produces high-quality foamed particles.
Smart Images

Figure CN224130184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of PET foam board, specifically to a PET foam board granule foaming machine. Background Technology
[0002] PET foam board is a closed-cell thermoplastic structure foam suitable for all resin systems and processing technologies. PET foam board is easy to process and has good thermal stability when heated. The production of PET foam board requires the use of a foaming machine to foam the granules.
[0003] A search revealed a utility model patent in China with publication number CN212147259U: a foaming machine for manufacturing polyurethane foam granules, comprising a foaming machine body. The foaming machine body is divided into an upper and lower mixing chamber and a foaming chamber by a partition plate. The upper inner wall of the foaming machine body and the upper end of the partition plate are rotatably connected to the same first stirring rod by ball bearings. A drive motor is fixedly connected to the upper end of the foaming machine body. The output shaft of the drive motor passes through the upper end of the foaming machine body and is fixedly connected to the upper end of the first stirring rod. Multiple first mixing blades are evenly fixedly connected to the rod wall of the first stirring rod. Second stirring rods are rotatably connected to the inner walls of opposite sides of the mixing chamber by ball bearings. Multiple second mixing blades are evenly fixedly connected to the rod wall of the second stirring rod.
[0004] However, existing technical solutions still have the problem of uneven foaming of particles during heating, which makes it inconvenient to stir the particles. Therefore, a PET foam board particle foaming machine is needed to improve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a PET foam board particle foaming machine that uses the cooperation of a first stirring mechanism and a second stirring mechanism to ensure uniform heating of particles, followed by foaming and curing in a foaming chamber to form foamed particles. This machine is highly practical.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the present invention provides the following technical solution: a PET foam board granule foaming machine, comprising a foaming machine body, wherein four fixed columns are symmetrically fixedly installed at the bottom end of the foaming machine body, and each fixed column is provided with a moving wheel at the bottom end; the foaming machine body is provided with a working chamber and a foaming chamber.
[0009] The foaming machine body is equipped with a feeding mechanism, which includes two feeding boxes. The two feeding boxes are symmetrically fixed on the foaming machine body. Two feeding holes are symmetrically opened on the foaming machine body. The two feeding boxes and the two feeding holes are connected to each other through two feeding pipes. Each of the two feeding pipes is equipped with a first solenoid valve.
[0010] The working chamber is equipped with a first stirring mechanism, which includes a first motor. The first motor is fixedly installed on the foaming machine body. A first rotating shaft is fixedly installed at the output end of the first motor. Multiple first stirring rods are fixedly installed on the first rotating shaft. A connecting pipe is fixedly installed on the working chamber. A second solenoid valve is installed on the connecting pipe. A spray gun is connected to the connecting pipe.
[0011] A second stirring mechanism is provided in the foaming chamber. The second stirring mechanism includes a second motor. A second rotating shaft is fixedly installed at the output end of the second motor. A stirring frame is fixedly installed on the second rotating shaft. Multiple second stirring rods are symmetrically fixedly installed on the stirring frame. A discharge pipe is connected to the outer wall of the foaming machine body. A third solenoid valve is provided on the discharge pipe.
[0012] The mixing rack rotates stably via a stabilizing mechanism.
[0013] Preferably, the stabilizing mechanism includes two stabilizing rods, which are symmetrically fixed on the stirring frame. A slide rail is provided on the foaming chamber, and the two stabilizing rods are slidably connected to the slide rail.
[0014] Furthermore, a protective cover is fixedly installed on the foaming machine body, and the first motor is located inside the protective cover.
[0015] Furthermore, an observation window is provided on the main body of the foaming machine.
[0016] Based on the aforementioned scheme, a U-shaped frame is fixedly installed at the bottom of the foaming machine body, and the second motor is attached to the U-shaped frame.
[0017] Furthermore, a guide plate is fixedly installed at the bottom of the foaming chamber.
[0018] (III) Beneficial Effects
[0019] Compared with the prior art, this utility model provides a PET foam board granule foaming machine, which has the following beneficial effects:
[0020] The required materials are added to the two feed hoppers. By opening the two first solenoid valves, the materials in the two feed hoppers flow into the working chamber through the two feed pipes. By starting the first motor, the first rotating shaft is driven to rotate, which in turn causes the multiple first stirring rods to rotate, thus mixing the materials in the working chamber and improving the mixing efficiency. By opening the second solenoid valve, the mixed materials are sprayed out as granules through the spray gun. The second motor is started, which provides power to drive the second rotating shaft to rotate, which in turn causes the stirring frame and multiple second stirring rods to rotate. Through the cooperation of the stirring frame and multiple second stirring rods, the granules are stirred, thus ensuring that the granules are heated evenly. After foaming and curing in the foaming chamber, foamed granules are formed. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic cross-sectional view of the present invention.
[0023] Figure 3 This is a schematic diagram of the structure of the multiple first stirring rods of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the stirring rack and the second stirring rod of this utility model.
[0025] The attached diagram shows the following components: 1. Foaming machine body; 2. Fixed column; 3. Casters; 4. Feed box; 5. Feed pipe; 6. First solenoid valve; 7. First motor; 8. First rotating shaft; 9. First stirring rod; 10. Connecting pipe; 11. Second solenoid valve; 12. Spray gun; 13. Second motor; 14. Second rotating shaft; 15. Stirring frame; 16. Second stirring rod; 17. Discharge pipe; 18. Third solenoid valve; 19. Stabilizing rod; 20. Slide rail; 21. Protective cover; 22. Observation window; 23. U-shaped frame; 24. Guide plate. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0027] Example
[0028] Please see Figure 1 and Figure 2A PET foam board granule foaming machine includes a foaming machine body 1, four fixed columns 2 are symmetrically fixedly installed at the bottom of the foaming machine body 1, and each fixed column 2 is provided with a moving wheel 3 at the bottom. The foaming machine body 1 has a working chamber and a foaming chamber.
[0029] Please see Figure 1 and Figure 2 The foaming machine body 1 is equipped with a feeding mechanism, which includes two feeding boxes 4. The two feeding boxes 4 are symmetrically fixed on the foaming machine body 1. Two feeding holes are symmetrically opened on the foaming machine body 1. The two feeding boxes 4 and the two feeding holes are connected to each other through two feeding pipes 5. Each of the two feeding pipes 5 is equipped with a first solenoid valve 6. The required material is added into the two feeding boxes 4. By opening the two first solenoid valves 6, the material in the two feeding boxes 4 flows into the working chamber through the two feeding pipes 5.
[0030] Please see Figure 1-3 The working chamber is equipped with a first stirring mechanism, which includes a first motor 7. The first motor 7 is fixedly installed on the foaming machine body 1. A first rotating shaft 8 is fixedly installed at the output end of the first motor 7. Multiple first stirring rods 9 are fixedly installed on the first rotating shaft 8. A connecting pipe 10 is fixedly installed on the working chamber. A second solenoid valve 11 is installed on the connecting pipe 10. A spray gun 12 is connected to the connecting pipe 10. By starting the first motor 7, the first rotating shaft 8 is driven to rotate, thereby causing the multiple first stirring rods 9 to rotate and mix the material in the working chamber, improving the mixing efficiency. By opening the second solenoid valve 11, the mixed material is sprayed out as particles through the spray gun 12.
[0031] Please see Figure 1 , Figure 2 and Figure 4 The foaming chamber is equipped with a second stirring mechanism, which includes a second motor 13. A second rotating shaft 14 is fixedly installed at the output end of the second motor 13. A stirring frame 15 is fixedly installed on the second rotating shaft 14. Multiple second stirring rods 16 are symmetrically fixedly installed on the stirring frame 15. A discharge pipe 17 is connected to the outer wall of the foaming machine body 1. A third solenoid valve 18 is installed on the discharge pipe 17. When the second motor 13 is started, the second rotating shaft 14 is driven to rotate by the power provided by the second motor 13. This causes the stirring frame 15 and the multiple second stirring rods 16 to rotate. Through the cooperation of the stirring frame 15 and the multiple second stirring rods 16, the particles are stirred, so that the particles are heated evenly. After foaming and solidification in the foaming chamber, foamed particles are formed.
[0032] Please see Figure 1 , Figure 2 and Figure 4The mixing rack 15 rotates stably through a stabilizing mechanism, which includes two stabilizing rods 19. The two stabilizing rods 19 are symmetrically fixed on the mixing rack 15. A slide rail 20 is provided on the foaming chamber. The two stabilizing rods 19 are slidably connected to the slide rail 20. The arrangement of the two stabilizing rods 19 and the slide rail 20 makes the mixing rack 15 more stable when rotating.
[0033] Please see Figure 1 and Figure 2 A protective cover 21 is fixedly installed on the foaming machine body 1. The first motor 7 is located inside the protective cover 21. The protective cover 21 protects the first motor 7 during operation.
[0034] Please see Figure 1 It should also be noted that an observation window 22 is provided on the foaming machine body 1, which facilitates observation of the internal condition of the foaming machine body 1.
[0035] Please see Figure 2 A U-shaped frame 23 is fixedly installed at the bottom of the foaming machine body 1. The second motor 13 is attached to the U-shaped frame 23. The U-shaped frame 23 makes the second motor 13 more stable.
[0036] Please see Figure 2 A guide plate 24 is fixedly installed at the bottom of the foaming chamber. The guide plate 24 guides the foam particles and facilitates their discharge from the foaming machine body 1.
[0037] In summary, when using this PET foam board granule foaming machine, the required materials are added to the two feed hoppers 4, and the two first solenoid valves 6 are opened. The materials in the two feed hoppers 4 flow into the working chamber through the two feed pipes 5. The first motor 7 is started. This motor is a commercially available device known to those skilled in the art. Here, we are only using it practically and have not made any structural or functional improvements. We will not elaborate on these details here. The motor is equipped with a matching control switch. The installation position of the control switch is selected according to actual practical needs to facilitate operation and control by the operator. The first motor 7 drives the first rotating shaft 8 to rotate, thereby enabling... Multiple first stirring rods 9 rotate to mix the materials in the working chamber, improving mixing efficiency. By opening the second solenoid valve 11, the mixed particles are sprayed out through the spray gun 12. The second motor 13 is started, and the second motor 13 provides power to drive the second rotating shaft 14 to rotate, thereby causing the stirring frame 15 and multiple second stirring rods 16 to rotate. Through the cooperation of the stirring frame 15 and multiple second stirring rods 16, the particles are stirred, so that the particles are heated evenly. After foaming and solidification in the foaming chamber, foamed particles are formed. The particles in the foaming machine body 1 are guided by the guide plate 24 and discharged through the discharge pipe 17.
[0038] 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 PET foam slab granulator machine comprising a granulator machine body (1) characterized in that: The bottom of the foaming machine body (1) is symmetrically fixed with four fixed columns (2), and each fixed column (2) is provided with a moving wheel (3) at its bottom. The foaming machine body (1) is provided with a working chamber and a foaming chamber. The foaming machine body (1) is provided with a feeding mechanism, which includes two feeding boxes (4). The two feeding boxes (4) are symmetrically fixed on the foaming machine body (1). Two feeding holes are symmetrically opened on the foaming machine body (1). The two feeding boxes (4) and the two feeding holes are respectively connected through two feeding pipes (5). Each of the two feeding pipes (5) is provided with a first electromagnetic valve (6). The working chamber is provided with a first stirring mechanism, which includes a first motor (7). The first motor (7) is fixedly installed on the foaming machine body (1). The output end of the first motor (7) is fixedly installed with a first rotating shaft (8). Multiple first stirring rods (9) are fixedly installed on the first rotating shaft (8). A connecting pipe (10) is fixedly installed on the working chamber. A second electromagnetic valve (11) is provided on the connecting pipe (10). A spray gun (12) is connected to the connecting pipe (10). A second stirring mechanism is provided in the foaming chamber. The second stirring mechanism includes a second motor (13). A second rotating shaft (14) is fixedly installed at the output end of the second motor (13). A stirring frame (15) is fixedly installed on the second rotating shaft (14). Multiple second stirring rods (16) are symmetrically fixedly installed on the stirring frame (15). A discharge pipe (17) is connected to the outer wall of the foaming machine body (1). A third electromagnetic valve (18) is provided on the discharge pipe (17). The mixing rack (15) rotates stably through a stabilizing mechanism.
2. The PET foam board granulating machine according to claim 1, wherein: The stabilizing mechanism includes two stabilizing rods (19), which are symmetrically fixed on the stirring rack (15). A slide rail (20) is provided on the foaming chamber, and the two stabilizing rods (19) are slidably connected to the slide rail (20).
3. A PET foam board granulating machine according to claim 2, characterized in that: A protective cover (21) is fixedly installed on the foaming machine body (1), and the first motor (7) is located inside the protective cover (21).
4. A PET foam board granulating machine according to claim 3, characterized in that: An observation window (22) is provided on the main body (1) of the foaming machine.
5. A PET foam board granulating machine according to claim 4, characterized in that: A U-shaped frame (23) is fixedly installed at the bottom of the foaming machine body (1), and the second motor (13) is attached to the U-shaped frame (23).
6. A PET foam board granulating machine according to claim 5, characterized in that: A guide plate (24) is fixedly installed at the bottom of the foaming chamber.
Citation Information
Patent Citations
Foaming machine for manufacturing polyurethane foaming particles
CN212147259U