A foaming agent feeding device for producing polypropylene foam material

Abstract

The utility model discloses a foaming agent feeding device for the production of polypropylene foaming materials. The utility model relates to the technical field of feeding equipment. The foaming agent feeding device for the production of polypropylene foaming materials drives the foaming agent to be input from the foaming agent feeding pipe to the distribution pipe through an electric control liquid pump, and uses the feeding pipe head to uniformly feed the inside of the tank body, so as to avoid the situation of high local foaming agent concentration, reduce the time of uniform diffusion of the foaming agent, and help improve the processing quality and processing efficiency of the equipment. When the foaming agent is added, the check ball is pushed to move to the lower side of the active cavity through the hydraulic pressure in the pipe, so that the foaming agent is sprayed out from the adding port. When the electric control liquid pump finishes working, due to the disappearance of the hydraulic pressure, the reset spring drives the check ball to move upwards and fits to block the L-shaped cavity, so as to prevent the mixed raw materials from flowing back into the feeding structure due to factors such as excessively high liquid level, and help avoid the problem of backflow and backflow affecting the normal use of the feeding structure.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a foaming agent feeding device used for the production of polypropylene foaming materials. Background Art

[0002] Foamed polypropylene is a lightweight, heat-insulating, flame-retardant plastic material made from polypropylene through a foaming process. Polypropylene is a common thermoplastic. Due to its high strength, stiffness, and heat resistance, it can be processed over a wide temperature range and is widely used in construction, packaging, transportation, and other fields.

[0003] For example, patent No. CN219186768U discloses a feeding device for the production of polyurethane foaming agent, comprising: a stirring tank, a feeding mechanism arranged at the top of the stirring tank, the feeding mechanism comprising: a material storage shell fixedly connected to the top of the stirring tank and connected to the inside of the stirring tank, a sealing plate fixedly connected to the L-shaped structure of the inner wall of the material storage shell, a plurality of partitions fixedly connected to the inner wall of the material storage shell, a door closing mechanism arranged on the back of the sealing plate, and a second drive motor fixedly installed on the back of the material storage shell for driving the door closing mechanism to operate; two door panels are opened at the same time, and the raw materials in the material storage shell are concentrated into the stirring tank to realize the centralized feeding function, and the first drive motor is started at the same time, and the stirring mechanism is driven by the first drive motor to operate, and the raw materials are stirred and mixed at a high speed to improve the foaming effect.

[0004] When the existing foaming agent feeding device is performing the feeding operation, due to its relatively simple feeding port structure, the foaming agent feeding range is generally relatively concentrated, resulting in a high local foaming agent concentration and requiring a certain diffusion time, which is not conducive to improving work efficiency and has a certain impact on production and processing operations. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a foaming agent feeding device for the production of polypropylene foam materials, so as to solve the problem raised in the above background technology that when the existing foaming agent feeding device is performing the feeding operation, due to its relatively simple feeding port structure, the foaming agent feeding range is generally relatively concentrated, resulting in a high local foaming agent concentration and requiring a certain diffusion time, which is not conducive to improving work efficiency and has a certain impact on production and processing operations.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a foaming agent feeding device for the production of polypropylene foam material, comprising a polypropylene foam material processing tank, a foaming agent feeding pipe is fixedly installed on the left side of the surface of the polypropylene foam material processing tank, a distribution pipe is fixedly installed on the upper side inside the polypropylene foam material processing tank, a feeding pipe head is fixedly installed on the surface of the distribution pipe, an L-shaped cavity is arranged inside the feeding pipe head, a movable cavity is arranged at the lower end of the L-shaped cavity, a adding port is opened on the surface of the feeding pipe head located on the side of the movable cavity, a limiting ring is fixedly installed on the lower side inside the movable cavity, a reset spring is fixedly installed inside the L-shaped cavity, and a check ball is fixedly installed at the lower end of the reset spring extending to the inside of the movable cavity.

[0007] Preferably, a support frame is fixedly installed on the lower side of the surface of the polypropylene foam material processing tank, and a driving motor is fixedly installed on the upper end of the polypropylene foam material processing tank.

[0008] Preferably, an electrically controlled liquid pump is disposed on the surface of the foaming agent feeding pipe, and the right end of the foaming agent feeding pipe extends to the interior of the polypropylene foam material processing tank and is connected to the distribution pipe.

[0009] Preferably, the distribution pipe is designed in an annular structure, and the feeding pipe heads are distributed in an annular array.

[0010] Preferably, the feeding pipe head is designed in an L-shaped structure, and the L-shaped cavity is connected to the distribution pipe.

[0011] Preferably, the addition ports are distributed in a ring array, and the inner diameter of the limiting ring is smaller than the check ball.

[0012] Preferably, the check ball is slidably connected to the movable cavity, and the inner diameter of the L-shaped cavity is smaller than the check ball.

[0013] Beneficial Effects

[0014] The utility model provides a foaming agent feeding device for the production of polypropylene foam materials. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The foaming agent feeding device used for the production of polypropylene foaming materials drives the foaming agent from the foaming agent feeding pipe to the distribution pipe through an electrically controlled liquid pump, and uses multiple feeding pipe heads distributed in a ring array to evenly feed the inside of the polypropylene foaming material processing tank, thereby avoiding the situation of high local foaming agent concentration, greatly reducing the time for uniform diffusion of the foaming agent, and being beneficial to improving the processing quality and efficiency of the equipment.

[0016] 2. The foaming agent feeding device used for the production of polypropylene foamed materials, when adding the foaming agent, the hydraulic pressure in the pipe pushes the check ball to move to the lower side of the movable cavity, so that the foaming agent is ejected from the adding port, and when the electric control liquid pump finishes working, due to the disappearance of the hydraulic pressure, the return spring drives the check ball to move upward, and fits to block the L-shaped cavity, preventing the operation of the equipment and the excessively high liquid level in the tank from causing the mixed raw materials to flow back into the feeding structure, which is beneficial to avoid the problem of backflow and backflow affecting the normal use of the feeding structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the distribution pipe structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the check ball structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the feeding pipe head of the utility model.

[0021] In the figure: 1. Polypropylene foam material processing tank; 2. Foaming agent feeding pipe; 3. Distribution pipe; 4. Feeding pipe head; 5. L-shaped cavity; 6. Movable cavity; 7. Adding port; 8. Limiting ring; 9. Return spring; 10. Check ball; 11. Support frame; 12. Drive motor; 13. Electronically controlled liquid pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a foaming agent feeding device for the production of polypropylene foam material, comprising a polypropylene foam material processing tank 1, a foaming agent feeding pipe 2 is fixedly installed on the left side of the surface of the polypropylene foam material processing tank 1, a distribution pipe 3 is fixedly installed on the upper side of the inside of the polypropylene foam material processing tank 1, a feeding pipe head 4 is fixedly installed on the surface of the distribution pipe 3, a support frame 11 is fixedly installed on the lower side of the surface of the polypropylene foam material processing tank 1, a driving motor 12 is fixedly installed on the upper end of the polypropylene foam material processing tank 1, and the surface of the foaming agent feeding pipe 2 is provided with There is an electric-controlled liquid pump 13, the right end of the foaming agent feeding pipe 2 extends to the inside of the polypropylene foam material processing tank 1 and is connected to the distribution pipe 3. The distribution pipe 3 is designed in an annular structure, and the feeding pipe heads 4 are distributed in an annular array. The foaming agent is driven from the foaming agent feeding pipe 2 to the distribution pipe 3 by the electric-controlled liquid pump 13, and the inside of the polypropylene foam material processing tank 1 is uniformly fed by using multiple feeding pipe heads 4 distributed in the annular array, so as to avoid the situation of high local foaming agent concentration, greatly reduce the time for uniform diffusion of the foaming agent, and help improve the processing quality and processing efficiency of the equipment;

[0024] An L-shaped cavity 5 is arranged inside the feeding pipe head 4, and a movable cavity 6 is arranged at the lower end of the L-shaped cavity 5. An addition port 7 is provided on the surface of the feeding pipe head 4 at the side of the movable cavity 6. A limit ring 8 is fixedly installed on the lower side of the movable cavity 6. A return spring 9 is fixedly installed inside the L-shaped cavity 5. The lower end of the return spring 9 extends to the inside of the movable cavity 6 and a check ball 10 is fixedly installed. The feeding pipe head 4 is designed in an L-shaped structure. The L-shaped cavity 5 is connected to the distribution pipe 3. The addition ports 7 are distributed in a ring array. The inner diameter of the limit ring 8 is smaller than the check ball 10. The ball 10 is slidably connected to the movable cavity 6. The inner diameter of the L-shaped cavity 5 is smaller than the check ball 10. When the foaming agent is added, the hydraulic pressure in the tube pushes the check ball 10 to move to the lower side of the movable cavity 6, so that the foaming agent is ejected from the adding port 7. When the electric control liquid pump 13 finishes working, due to the disappearance of the hydraulic pressure, the return spring 9 drives the check ball 10 to move upward and fits to block the L-shaped cavity 5, preventing the operation of the equipment and the excessive liquid level in the tank from causing the mixed raw materials to flow back into the feeding structure, which is beneficial to avoid the problem of backflow and backflow affecting the normal use of the feeding structure.

[0025] During operation, the processing equipment is started, and the electric-controlled liquid pump 13 is used to drive the foaming agent from the foaming agent feeding pipe 2 to the distribution pipe 3, and multiple feeding pipe heads 4 distributed in a ring array are used to evenly feed the interior of the polypropylene foam material processing tank 1 to avoid the situation where the local foaming agent concentration is high, and greatly reduce the time for the foaming agent to diffuse evenly. When adding the foaming agent, the check ball 10 is pushed to the lower side of the active cavity 6 by the hydraulic pressure in the pipe, so that the foaming agent is ejected from the addition port 7. When the electric-controlled liquid pump 13 finishes working, due to the disappearance of the hydraulic pressure, the return spring 9 drives the check ball 10 to move upward, and fits and blocks the L-shaped cavity 5, preventing the operation of the equipment and the excessively high liquid level in the tank from causing the mixed raw materials to flow back into the feeding structure.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A foaming agent feeding device for the production of polypropylene foam material, comprising a polypropylene foam material processing tank (1), characterized in that: A foaming agent feeding pipe (2) is fixedly installed on the left side of the surface of the polypropylene foam material processing tank (1), a distribution pipe (3) is fixedly installed on the upper side of the interior of the polypropylene foam material processing tank (1), a feeding pipe head (4) is fixedly installed on the surface of the distribution pipe (3), an L-shaped cavity (5) is arranged inside the feeding pipe head (4), a movable cavity (6) is arranged at the lower end of the L-shaped cavity (5), a feeding port (7) is provided on the surface of the feeding pipe head (4) at the side of the movable cavity (6), a limiting ring (8) is fixedly installed on the lower side of the interior of the movable cavity (6), a return spring (9) is fixedly installed inside the L-shaped cavity (5), and a check ball (10) is fixedly installed at the lower end of the return spring (9) extending to the interior of the movable cavity (6).

2. The foaming agent feeding device for producing polypropylene foam material according to claim 1, characterized in that: A support frame (11) is fixedly mounted on the lower side of the surface of the polypropylene foam material processing tank (1), and a driving motor (12) is fixedly mounted on the upper end of the polypropylene foam material processing tank (1).

3. The foaming agent feeding device for the production of polypropylene foam material according to claim 2, characterized in that: An electrically controlled liquid pump (13) is disposed on the surface of the foaming agent feeding pipe (2), and the right end of the foaming agent feeding pipe (2) extends to the interior of the polypropylene foam material processing tank (1) and is connected to the distribution pipe (3).

4. The foaming agent feeding device for the production of polypropylene foam material according to claim 3, characterized in that: The distribution pipe (3) is designed in an annular structure, and the feeding pipe heads (4) are distributed in an annular array.

5. The foaming agent feeding device for producing polypropylene foam material according to claim 4, characterized in that: The feeding pipe head (4) is designed to be an L-shaped structure, and the L-shaped cavity (5) is connected to the distribution pipe (3).

6. The foaming agent feeding device for producing polypropylene foam material according to claim 1, characterized in that: The addition ports (7) are distributed in a ring array, and the inner diameter of the limiting ring (8) is smaller than the check ball (10).

7. A foaming agent feeding device for the production of polypropylene foam material according to claim 6, characterized in that: The check ball (10) is slidably connected to the movable cavity (6), and the inner diameter of the L-shaped cavity (5) is smaller than the check ball (10).

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