Polyurethane foam foaming device

Abstract

The utility model relates to the technical field of foam, and discloses a polyurethane foam foaming device which comprises a hollow foaming barrel, a cross-shaped frame plate and four auxiliary stirring rods. The frame plate is erected and installed at the top of the foaming barrel, and lantern rings are fixedly installed at the bottoms of the four corners of the frame plate and installed on the outer side of the top of the foaming barrel in a sleeving mode; a driving gear and four driven gears can drive four auxiliary stirring rods to rotate while a main stirring rod rotates, and five positions in a foaming barrel can be stirred, so that raw materials for producing polyurethane foam are fully mixed and contacted with foaming liquid, and the foaming effect of subsequent polyurethane foam is improved; in addition, when the main stirring rod rotates, four auxiliary stirring rods can move downwards through cooperation of a driving lower pressing plate and four driven lower pressing plates, and a pressing circular plate is used for vertically pressing and stirring the foaming polyurethane foam raw materials in the foaming barrel, so that the mixing effect of the polyurethane foam raw materials is improved.

Description

Technical Field

[0001] This application relates to the technical field of foams, especially the polyurethane foam foaming device. Background Art

[0002] Polyurethane foam is a new type of organic polymer material, known as the "fifth plastic", and is widely used in many fields such as light industry, chemical industry, electronics, textile, medical, automotive, aerospace, etc. due to its excellent performance. Hydrophilic polyurethane foam is a foam with high water absorption and good water locking effect by adding water-absorbing components such as solidifying agents, and has achieved rapid development in the fields of medical, feminine sanitary napkins, baby diapers, etc. due to its excellent water absorption and water locking effect.

[0003] After retrieval, Chinese Patent Publication No. CN217752428U discloses a foaming machine for foam production, including a production tank and a stirring unit; Production tank: A motor is provided on its upper end surface through a mounting seat, and a gas transmission pipe is rotatably connected in a rotation hole provided in the middle of the upper end surface of the production tank. The upper end of the gas transmission pipe is fixedly connected to the lower end of the output shaft of the motor, and evenly distributed blades are provided on the lower outer arc surface of the gas transmission pipe; Stirring unit: It is arranged on the top wall surface of the production tank, and the stirring unit is fixedly connected to the upper outer arc surface of the gas transmission pipe; Among them: It also includes a control switch group, and the control switch group is arranged on the outer arc surface of the production tank. This foaming machine for foam production makes the foam raw materials easier to form eddies during the stirring process, thereby avoiding the sedimentation of the foam raw materials, achieving a better mixing effect, improving the production quality of the foam raw materials, enabling the heated air to fully contact the foam raw materials, and greatly improving the foaming efficiency and quality during foam production. However, in actual use, there are deficiencies in the stirring efficiency, uniformity, and bubble control of its stirring structure, and it is difficult to meet the production requirements of high-quality polyurethane foam. Utility Model Content

[0004] In order to solve the problems raised in the above background art, this application provides a polyurethane foam foaming device.

[0005] The polyurethane foam foaming device provided by this application adopts the following technical solutions:

[0006] The polyurethane foam foaming device includes a hollow foaming barrel, a cross-shaped frame plate, and four auxiliary stirring rods;

[0007] The shelf board is installed on the top of the foaming barrel. At the bottom of the four corners of the shelf board, collar rings are fixedly installed, and the collar rings are sleeved on the outside of the top of the foaming barrel. A driving motor is fixedly installed on the top of the shelf board. The output end of the driving motor movably penetrates through the shelf board and is installed with a main stirring rod. A connecting rod is fixedly installed on the outside of the main stirring rod. One end of the connecting rod away from the main stirring rod is fixedly installed with an active lower pressing plate. Four hollow rotating sleeves are rotatably installed inside the shelf board. Two symmetrical rectangular limiting sliding grooves are opened at the bottom ends of the four rotating sleeves;

[0008] Spring pressing plates are installed at the top ends of the four auxiliary stirring rods. Return springs are sleeved on the outside of the top ends of the four auxiliary stirring rods. The spring pressing plates and the return springs at the tops of the four auxiliary stirring rods are respectively located inside the four rotating sleeves. Two ends of the return spring are respectively fixedly connected with the bottom of the spring pressing plate and the bottom of the inner cavity of the rotating sleeve. Driven lower pressing discs are fixedly installed on the outside of the four auxiliary stirring rods. Pressing circular plates are fixedly installed at the bottom ends of the four auxiliary stirring rods. Limiting sliding rods are fixedly installed on both sides of the top ends of the auxiliary stirring rods. The limiting sliding rods are respectively slidably installed inside the limiting sliding grooves.

[0009] Preferably, an active gear is fixedly installed on the outside of the main stirring rod. Driven gears are fixedly installed on the outside of the bottom ends of the four rotating sleeves. The outside of the active gear meshes with the outside of the four driven gears.

[0010] Preferably, one end of the active lower pressing plate is arc-shaped, and the position of the top of the active lower pressing plate is higher than the positions of the tops of the four driven lower pressing discs.

[0011] Preferably, a plurality of main stirring blades are fixedly installed on the outside of the main stirring rod.

[0012] Preferably, a plurality of auxiliary stirring blades are fixedly installed on both sides of the four auxiliary stirring rods.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] The rotation of the main stirring rod can drive the rotation of the four auxiliary stirring rods through the driving gear and the four driven gears, enabling the stirring of five positions inside the foaming barrel, ensuring the full mixing and contact of the raw materials for producing polyurethane foam and the foaming liquid, and enhancing the subsequent foaming effect of the polyurethane foam. Additionally, while the main stirring rod rotates, the cooperation of the driving lower pressing plate and the four driven lower pressing plates can cause the four auxiliary stirring rods to move downward, and the polyurethane foam raw materials undergoing foaming inside the foaming barrel can be vertically pressed and stirred through the pressing circular plate, improving the mixing effect of the polyurethane foam raw materials, thereby enhancing the foaming effect, effectively increasing the stirring area and the bubble dispersion effect, and improving the stirring efficiency and the foam quality. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the application;

[0016] Figure 2 is a structural schematic diagram of a partial bottom view of an embodiment of the application;

[0017] Figure 3 is a structural schematic diagram of a partial three-dimensional view of an embodiment of the application;

[0018] Figure 4 is a structural schematic diagram of a partial external view of an embodiment of the application;

[0019] Figure 5 is a structural schematic diagram of a partial cross-sectional view of an embodiment of the application.

[0020] Description of the Reference Numerals: 1, foaming barrel; 2, mounting plate; 3, rotating sleeve; 4, driving motor; 5, collar; 6, auxiliary stirring blade; 7, pressing circular plate; 8, driven gear; 9, driven lower pressing plate; 10, driving gear; 11, driving lower pressing plate; 12, connecting rod; 13, auxiliary stirring rod; 14, main stirring rod; 15, main stirring blade; 16, limiting sliding groove; 17, return spring; 18, spring pressing plate; 19, limiting sliding rod. Detailed Description of the Embodiment

[0021] The following further describes the present application in detail Figures 1-5 with reference to the accompanying drawings.

[0022] The embodiment of the present application discloses a polyurethane foam foaming device. Refer to Figures 1-5, a polyurethane foam foaming device, comprising a foaming barrel 1 provided with a hollow interior, a cross-shaped frame plate 2 and four auxiliary stirring rods 13; the frame plate 2 is installed on the top of the foaming barrel 1, and sleeves 5 are fixedly installed at the bottoms of the four corners of the frame plate 2, and the sleeves 5 are sleeved and installed on the outer side of the top of the foaming barrel 1. A driving motor 4 is fixedly installed on the top of the frame plate 2. The output end of the driving motor 4 movably penetrates through the frame plate 2 and is installed with a main stirring rod 14. A plurality of main stirring blades 15 are fixedly installed on the outer side of the main stirring rod 14. The distance between two vertically adjacent main stirring blades 15 is 50 cm. A connecting rod 12 is fixedly installed on the outer side of the main stirring rod 14. One end of the connecting rod 12 away from the main stirring rod 14 is fixedly installed with an active lower pressing plate 11. The active lower pressing plate 11 is arc-shaped, and one end of the active lower pressing plate 11 is arc-shaped. The height of the active lower pressing plate 11 is 40 cm. Four hollow rotating sleeves 3 are rotatably installed inside the frame plate 2. Two symmetrically arranged rectangular limiting sliding grooves 16 are opened at the bottom ends of the four rotating sleeves 3; Spring pressing plates 18 are installed at the top ends of the four auxiliary stirring rods 13. A plurality of auxiliary stirring blades 6 are fixedly installed on both sides of the four auxiliary stirring rods 13. The distance between two vertically adjacent auxiliary stirring blades 6 is 40 cm, and the distance between the vertically adjacent auxiliary stirring blade 6 and the main stirring blade 5 is 5 cm. Return springs 17 are sleeved on the outer sides of the top ends of the four auxiliary stirring rods 13. The spring pressing plates 18 and the return springs 17 at the tops of the four auxiliary stirring rods 13 are respectively located inside the four rotating sleeves 3. The inside of the rotating sleeve 3 is hollow, and a circular opening is opened at one end. The size of the circular opening is smaller than the cross-sectional size of the inner hollow. The spring pressing plate 18 is movably installed in the hollow position inside the rotating sleeve 3. The two ends of the return spring 17 are respectively fixedly connected to the bottom of the spring pressing plate 18 and the bottom of the inner cavity of the rotating sleeve 3. Driven lower pressing plates 9 are fixedly installed on the outer sides of the four auxiliary stirring rods 13. The position of the top of the active lower pressing plate 11 is higher than the positions of the tops of the four driven lower pressing plates 9, and the four driven lower pressing plates 9 are located on the rotation track of the active lower pressing plate 11. Pressing circular plates 7 are fixedly installed at the bottoms of the four auxiliary stirring rods 13. Limiting sliding rods 19 are fixedly installed on both sides of the top ends of the auxiliary stirring rods 13. The limiting sliding rods 19 are respectively slidably installed inside the limiting sliding grooves 16. An active gear 10 is fixedly installed on the outer side of the main stirring rod 14. Driven gears 8 are fixedly installed on the outer sides of the bottom ends of the four rotating sleeves 3. The outer side of the active gear 10 meshes with the outer sides of the four driven gears 8.

[0023] During use, all the electrical components in this application are externally connected to a power source and a control switch. First, place the raw materials for producing polyurethane foam into the interior of the foaming barrel 1, then add the foaming liquid. After that, the collar 5 can be placed on the top of the foaming barrel 1 and sleeved on the outer side of the top of the foaming barrel 1. Then start the drive motor 4. The output end of the drive motor 4 can drive the main stirring rod 14 to rotate, thereby driving the main stirring blade 15 to rotate and stir the interior of the foaming barrel 1, so that the raw materials for producing polyurethane foam are fully mixed and contacted with the foaming liquid. In addition, when the main stirring rod 14 rotates, it can drive the driving gear 10 to rotate, thereby driving the four driven gears 8 to rotate, causing the four rotating sleeves 3 to rotate, and cooperating with the limiting slide rod 19 and the limiting chute 16 to make the auxiliary stirring rod 13 rotate, so that the auxiliary stirring blade 6 rotates to assist in stirring the interior of the foaming barrel 1 and improve the stirring effect. In addition, when the main stirring rod 14 rotates, it can drive the active lower pressing plate 11 to rotate through the connecting rod 12. When the active lower pressing plate 11 passes by the driven lower pressing disc 9, the driven lower pressing disc 9 can be moved downward, thereby driving the auxiliary stirring rod 13 to move downward, and making the pressing circular plate 7 move downward. And cooperating with the return spring 17 and the spring pressing plate 18, the auxiliary stirring rod 13 can perform reciprocating up and down movements, so that the pressing circular plate 7 performs reciprocating up and down movements to vertically press and stir the polyurethane foam raw materials that are foaming inside the foaming barrel 1, improving the mixing effect of the polyurethane foam raw materials and thus enhancing the foaming effect.

[0024] During this process, through the driving gear 10 and the four driven gears 8, the four auxiliary stirring rods 13 can be driven to rotate while the main stirring rod 14 rotates, and five positions inside the foaming barrel 1 can be stirred, enabling the raw materials for producing polyurethane foam to be fully mixed and contacted with the foaming liquid, improving the subsequent foaming effect of the polyurethane foam. In addition, while the main stirring rod 14 rotates, the four auxiliary stirring rods 13 can be moved downward through the cooperation of the active lower pressing plate 11 and the four driven lower pressing discs 9, and the polyurethane foam raw materials that are foaming inside the foaming barrel 1 are vertically pressed and stirred through the pressing circular plate 7, improving the mixing effect of the polyurethane foam raw materials and thus enhancing the foaming effect, effectively increasing the stirring area and the bubble dispersion effect, and improving the stirring efficiency and the foam quality.

[0025] Finally, several 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 "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0026] Secondly: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0028] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. Polyurethane foam foaming device, characterized in that: It includes a foaming barrel (1) with a hollow setting, a cross-shaped shelf board (2) and four auxiliary stirring rods (13); The shelf board (2) is erected and installed on the top of the foaming barrel (1). At the bottom of the four corners of the shelf board (2), collar rings (5) are fixedly installed, and the collar rings (5) are sleeved and installed on the outer side of the top of the foaming barrel (1). A driving motor (4) is fixedly installed on the top of the shelf board (2). The output end of the driving motor (4) movably penetrates through the shelf board (2) and is installed with a main stirring rod (14). A connecting rod (12) is fixedly installed on the outer side of the main stirring rod (14). One end of the connecting rod (12) far from the main stirring rod (14) is fixedly installed with an active lower pressing plate (11). Four hollow rotating sleeves (3) are rotatably installed inside the shelf board (2). At the bottom ends of the four rotating sleeves (3), two symmetrically arranged rectangular limiting sliding grooves (16) are opened; Spring pressing plates (18) are installed at the top ends of the four auxiliary stirring rods (13). Return springs (17) are sleeved on the outer sides of the top ends of the four auxiliary stirring rods (13). The spring pressing plates (18) and the return springs (17) at the tops of the four auxiliary stirring rods (13) are respectively located inside the four rotating sleeves (3). Two ends of the return spring (17) are respectively fixedly connected with the bottom of the spring pressing plate (18) and the bottom of the inner cavity of the rotating sleeve (3). Driven lower pressing discs (9) are fixedly installed on the outer sides of the four auxiliary stirring rods (13). Pressing circular plates (7) are fixedly installed at the bottoms of the four auxiliary stirring rods (13). Limiting sliding rods (19) are fixedly installed on both sides of the top ends of the auxiliary stirring rods (13), and the limiting sliding rods (19) are respectively slidably installed inside the limiting sliding grooves (16).

2. The polyurethane foam foaming device according to claim 1, characterized in that: An active gear (10) is fixedly installed on the outer side of the main stirring rod (14). Driven gears (8) are fixedly installed on the outer sides of the bottom ends of the four rotating sleeves (3), and the outer side of the active gear (10) meshes with the outer sides of the four driven gears (8).

3. The polyurethane foam foaming device according to claim 1, characterized in that: One end of the active lower pressing plate (11) is arc-shaped, and the position of the top of the active lower pressing plate (11) is higher than the positions of the tops of the four driven lower pressing discs (9).

4. The polyurethane foam foaming device according to claim 1, characterized in that: Multiple main stirring blades (15) are fixedly installed on the outer side of the main stirring rod (14).

5. The polyurethane foam foaming device according to claim 1, characterized in that: Multiple auxiliary stirring blades (6) are fixedly installed on both sides of the four auxiliary stirring rods (13).

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