Mixing mechanism for gun head of polyurethane foaming machine

Abstract

The utility model discloses a polyurethane foaming machine gun head mixing mechanism which comprises a shell and a bearing, a spiral conveying rod is fixedly installed on an inner ring of the bearing, stirring rods are installed on the two sides of the spiral conveying rod, a stirring frame is installed at the bottom of the spiral conveying rod, and a discharging pipe is installed in the middle of the bottom of the shell in an embedded mode. According to the gun head mixing mechanism of the polyurethane foaming machine, through the spiral conveying rod, the stirring rod and the stirring frame, after a polyurethane material enters the shell from the two feeding pipes, the motor drives the spiral conveying rod to rotate through the transmission structure, the spiral conveying rod conveys the material on the lower portion in the shell upwards, and the stirring frame stretches into the discharging pipe; the stirring rods on the two sides of the spiral conveying rod stir the materials, the two materials are fully mixed and stirred together, the mixed materials enter the discharging pipe along the flow guide plate, the spiral conveying rod drives the stirring rods to stir the materials in the discharging pipe, and the effect of avoiding blockage is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane foaming machines, in particular to a gun head mixing mechanism of a polyurethane foaming machine. Background Art

[0002] A polyurethane foaming machine is a device used to produce polyurethane foam products. It mixes multi-component raw materials and injects them into a mold. The raw materials then react under certain temperature and pressure conditions to expand them into foam materials. These foam materials can be used in various fields, such as building insulation, packaging materials, furniture manufacturing, etc. The mixing mechanism of the polyurethane foaming machine gun head is responsible for mixing two or more raw materials required for polyurethane foaming. The mixing mechanisms commonly used are static mixers or dynamic mixers to ensure that the raw materials are fully mixed and discharged at the appropriate time.

[0003] When the current polyurethane foam machine gun head mixing mechanism mixes materials, the height of the materials inside the storage structure changes little, and some materials will accumulate in one place, resulting in insufficient mixing between the materials, affecting the quality of the output. Utility Model Content

[0004] The purpose of the present invention is to provide a polyurethane foaming machine gun head mixing mechanism to solve the problem in the above background technology that the polyurethane foaming machine gun head mixing mechanism cannot fully mix the materials.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane foaming machine gun head mixing mechanism, comprising a shell, a shell cover and a screw, two screw grooves are symmetrically provided on both sides of the top of the shell, and two circular holes are symmetrically provided on the shell cover, the two screws pass through the two circular holes and are engaged with the two screw grooves, the shell cover on the opposite side of the two circular holes is embedded with bearings, a spiral conveying rod is fixedly installed on the inner ring of the bearing, a motor is installed on the top of the shell cover above the spiral conveying rod, stirring rods are installed on both sides of the spiral conveying rod, a stirring frame is installed at the bottom of the spiral conveying rod, a discharge pipe is embedded in the middle of the bottom of the shell, the stirring frame extends into the inside of the discharge pipe, and a feed pipe is embedded on both sides of the shell.

[0006] Preferably, two support plates are symmetrically welded to the top of the shell cover on both sides of the motor, and fixing plates are welded to the top of the two support plates. The fixing plates are provided with fixing holes in a rectangular array.

[0007] Preferably, a fixing plate is installed on the top of the two screw rods.

[0008] Preferably, flange 1 is installed on the opposite ends of the two feed pipes.

[0009] Preferably, the motor transmission structure is fixedly connected to the top of the spiral conveying rod.

[0010] Preferably, guide plates are installed on both sides of the bottom end of the shell, and the two guide plates correspond to the discharge pipes.

[0011] Preferably, a second flange is installed at the bottom of the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The polyurethane foaming machine gun head mixing mechanism uses a spiral conveying rod, a stirring rod and a stirring frame. After the polyurethane material enters the shell from two feed pipes, the motor drives the spiral conveying rod to rotate through the transmission structure. The spiral conveying rod conveys the material below the shell upward to maintain the fluidity of the material. The stirring rods on both sides of the spiral conveying rod stir the material to fully mix the two materials together. The mixed material enters the discharge pipe along the guide plate. The spiral conveying rod drives the stirring rod to stir the material inside the discharge pipe to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first angle;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from a third angle;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model.

[0018] In the figure: 1. Shell; 2. Flange 1; 3. Shell cover; 4. Bearing; 5. Fixing plate; 6. Fixing hole; 7. Feed pipe; 8. Flange 2; 9. Discharge pipe; 10. Support plate; 11. Motor; 12. Screw; 13. Fixing plate; 14. Screw groove; 15. Round hole; 16. Screw conveyor rod; 17. Stirring rod; 18. Guide plate; 19. Stirring frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4The utility model provides a technical solution: a polyurethane foaming machine gun head mixing mechanism, including a shell 1, a shell cover 3 and a screw 12. Two screw grooves 14 are symmetrically provided on both sides of the top of the shell 1, and two round holes 15 are symmetrically provided on the shell cover 3. The two screws 12 pass through the two round holes 15 and are meshed with the two screw grooves 14. A fixed disk 13 is installed on the top of the two screws 12. The shell cover 3 on the opposite side of the two round holes 15 is embedded with a bearing 4. A spiral conveying rod 16 is fixedly installed on the inner ring of the bearing 4. A motor 11 is installed on the top of the shell cover 3 above the spiral conveying rod 16. The transmission structure of the motor 11 is fixedly connected to the top of the spiral conveying rod 16. Stirring rods 17 are installed on both sides of the conveying rod 16, and a stirring frame 19 is installed at the bottom of the spiral conveying rod 16. A discharge pipe 9 is embedded in the middle of the bottom of the shell 1, and the stirring frame 19 extends into the discharge pipe 9. Guide plates 18 are installed on both sides of the bottom end of the shell 1. The two guide plates 18 correspond to the discharge pipe 9. Flange 2 8 is installed at the bottom of the discharge pipe 9. Feed pipes 7 are embedded on both sides of the shell 1, and flange 1 2 is installed on the opposite ends of the two feed pipes 7. Two support plates 10 are symmetrically welded on the top of the shell cover 3 on both sides of the motor 11, and a fixing plate 5 is welded on the top of the two support plates 10. The fixing plate 5 is provided with fixing holes 6 in a rectangular array.

[0021] Working principle: Through the fixing hole 6 of the fixing plate 5, use bolts and other tools to fix the fixing plate 5 to the polyurethane foaming machine. The two feed pipes 7 are connected to the pipeline for conveying polyurethane materials through two flanges 1 2. The discharge pipe 9 is connected to the gun head through flange 2 8. After the polyurethane material enters the shell 1 from the two feed pipes 7, the motor 11 drives the spiral conveying rod 16 to rotate through the transmission structure. The spiral conveying rod 16 conveys the material at the bottom of the shell 1 upward to maintain the fluidity of the material. The stirring rods 17 on both sides of the spiral conveying rod 16 stir the material and fully mix the two materials together. The mixed material enters the discharge pipe 9 along the guide plate 18. The spiral conveying rod 16 drives the stirring rod 17 to stir the material inside the discharge pipe 9, and the material inside the discharge pipe 9 enters the inside of the gun head.

[0022] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Polyurethane foaming machine gun head mixing mechanism, characterized by: The invention comprises a shell (1), a shell cover (3) and a screw (12), wherein two screw grooves (14) are symmetrically provided on both sides of the top of the shell (1), and two circular holes (15) are symmetrically provided on the shell cover (3), and the two screws (12) pass through the two circular holes (15) and are meshed with the two screw grooves (14). The shell cover (3) on the opposite side of the two circular holes (15) is embedded with a bearing (4), and a spiral conveying rod (16) is fixedly installed on the inner ring of the bearing (4). A motor (11) is installed on the top of the shell cover (3) above the spiral conveying rod (16), stirring rods (17) are installed on both sides of the spiral conveying rod (16), and a stirring frame (19) is installed at the bottom of the spiral conveying rod (16). A discharge pipe (9) is embedded in the middle of the bottom of the shell (1), and the stirring frame (19) extends into the inside of the discharge pipe (9). A feed pipe (7) is embedded on both sides of the shell (1).

2. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: Two support plates (10) are symmetrically welded to the tops of the shell covers (3) on both sides of the motor (11), and fixing plates (5) are welded to the tops of the two support plates (10). The fixing plates (5) are provided with fixing holes (6) in a rectangular array.

3. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: A fixing plate (13) is installed on the top of each of the two screw rods (12).

4. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: The two feed pipes (7) are both provided with flange 1 (2) at their opposite ends.

5. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: The transmission structure of the motor (11) is fixedly connected to the top of the spiral conveying rod (16).

6. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: Guide plates (18) are installed on both sides of the bottom end of the shell (1), and the two guide plates (18) correspond to the discharge pipes (9).

7. The polyurethane foaming machine gun head mixing mechanism according to claim 1, characterized in that: A second flange (8) is installed at the bottom of the discharge pipe (9).

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