Polyurethane raw material self-preparation mixing device

Abstract

The utility model discloses a polyurethane raw material self-preparation mixing device which comprises a material mixing box, and the top end of the material mixing box is connected with a box cover through a lock catch. The material mixing device has the beneficial effects that the material mixing frame and the box cover are connected into a whole through the rotary table, and a mixed material is conveniently pulled, inserted and fixed through the matching of the square inserting groove and the square inserting rod, so that the material mixing frame and the box cover can be conveniently lifted and disassembled while the normal rotation and material mixing of the material mixing frame are ensured through the design; therefore, the material mixing frame is convenient to overhaul and maintain after being damaged, the overhaul and maintenance efficiency of components in the device is improved when the components in the device are damaged, meanwhile, high-pressure gas is sprayed into the device in cooperation with a high-pressure gas pump and an annular spraying cover during discharging, polyurethane raw materials adhering to the interior of the device can be blown down to a material guiding frustum, and the material mixing frame is convenient to maintain. Therefore, polyurethane raw materials are guided into the discharging pipe through the material guiding frustum, sufficient discharging of the polyurethane raw materials is achieved, and adhesion waste of the polyurethane raw materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane processing, and particularly relates to a polyurethane raw material self-matching and mixing device. Background Art

[0002] Polyurethane is a polymer containing urethane groups in the main chain of macromolecules, called polyurethane for short. Polyurethane is divided into two categories: polyester-type polyurethane and polyether-type polyurethane. Polyester-type polyurethane is prepared from diisocyanate and hydroxyl-terminated polyester. Polyether-type polyurethane is prepared from diisocyanate and hydroxyl-terminated polyether. In the process of polyurethane raw material processing, a mixing device is needed to mix and stir the polyurethane processing raw materials.

[0003] The Chinese patent with the patent number CN201822227831.9 discloses a polyurethane raw and auxiliary material mixing device, which includes a mixing device body and a rotating shaft. An inlet is arranged at the upper end of the mixing device body, a mixing chamber is arranged at the lower end of the inlet, several helical gear tracks are arranged on the inner surface of the mixing chamber, a rotating shaft is arranged on one side of the helical gear track, several through holes are arranged inside the rotating shaft, a sleeve is arranged inside the through hole, a telescopic rod is arranged inside the sleeve, several stirring rods are arranged on the surface of the telescopic rod, and a helical gear is arranged on one side of the stirring rod.

[0004] Although the above-mentioned polyurethane raw and auxiliary material mixing device can mix and stir the polyurethane processing raw materials during use, on the one hand, since the stirring frame on the above-mentioned polyurethane raw and auxiliary material mixing device is fixedly installed inside the device, it is inconvenient to repair and maintain the stirring frame inside the device when it is damaged, resulting in a relatively low repair and maintenance efficiency of the internal components of the device when they are damaged. On the other hand, since the bottom inside the above-mentioned polyurethane raw and auxiliary material mixing device is mainly a flat-bottom structure and there are no auxiliary discharging components inside the device, it is easy for the polyurethane raw materials to adhere and remain inside the device when discharging after use, resulting in insufficient discharge of the mixed polyurethane raw materials and waste of polyurethane raw materials. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is to provide a polyurethane raw material self-matching and mixing device according to the current situation of the prior art.

[0007] (2) Technical Solutions

[0008] The utility model is realized through the following technical solutions: The utility model provides a polyurethane raw material self-mixing device, which includes a mixing tank. The top of the mixing tank is connected with a tank cover through a buckle. The middle part of the bottom end of the tank cover is connected with a mixing frame through a turntable. A square slot is formed in the middle part of the bottom end of the mixing frame. A square plug rod is arranged in the square slot. The bottom end of the square plug rod is connected to the power output shaft of the motor. A guiding conical platform is formed at the inner bottom end of the mixing tank. A discharge pipe with a built-in valve is installed at the discharge port of the mixing tank. An annular spray cover is fixed around the inner top end of the tank cover. The air inlet of the annular spray cover is connected to a high-pressure air pump fixed outside the mixing tank through a detachable pipe.

[0009] Further, the turntable is rotatably connected to the tank cover, and the part of the tank cover where the turntable is located is a hollow structure.

[0010] By adopting the above technical solution, the mixing frame can be conveniently rotated relative to the tank cover by means of the turntable.

[0011] Further, the size of the square slot matches the size of the square plug rod, and the mixing frame penetrates through the annular spray cover.

[0012] By adopting the above technical solution, the cooperation between the square plug rod and the square slot can conveniently transmit the power of the motor to the mixing frame, so as to conveniently rotate the mixing frame and realize the mixing and stirring of polyurethane raw materials.

[0013] Further, the air jet ports of the annular spray cover are radially oriented towards the inside of the mixing tank, and the constricted part of the guiding conical platform is communicated with the discharge pipe.

[0014] By adopting the above technical solution, when discharging, blowing air into the annular spray cover through the high-pressure air pump can conveniently blow the high-pressure gas inside the mixing tank, so as to reduce the adhesion and residue of the polyurethane raw materials inside the mixing tank after mixing and stirring, and ensure the full discharge of the mixed polyurethane raw materials.

[0015] Further, a feed hopper for feeding polyurethane raw materials into the mixing tank is welded on one side of the upper end of the tank cover, and a lifting rod is also provided on the outer wall of the tank cover.

[0016] By adopting the above technical solution, polyurethane raw materials can be conveniently added into the mixing tank through the feed hopper.

[0017] Further, a control panel for conveniently opening and closing the motor and the high-pressure air pump is connected to the middle part of the outer side wall of the mixing tank through bolts. A U-shaped push handle is welded below the control panel on the mixing tank, and a storage battery is fixed below the push handle on the mixing tank.

[0018] By adopting the above technical solution, the coordinated operation of the motor and the high-pressure air pump can be realized under the action of the operation panel, thereby ensuring the stable operation of the device.

[0019] Furthermore, an inverted U-shaped moving base for facilitating the installation and fixation of the motor is welded to the bottom end of the mixing tank, and the power output shaft of the motor penetrates through the top end of the moving base and the bottom end of the mixing tank.

[0020] By adopting the above technical solution, the flexible movement of the device can be realized according to actual usage needs with the help of the moving base.

[0021] (III) Beneficial Effects

[0022] The utility model has the following beneficial effects compared with the prior art:

[0023] To solve the problem that although the existing polyurethane raw material mixing device can mix and stir the polyurethane processing raw materials during use, on the one hand, since the stirring frame on the polyurethane raw material mixing device with the above structure is fixedly installed inside the device, it is inconvenient to repair and maintain the stirring frame inside the device when it is damaged, resulting in a relatively low repair and maintenance efficiency of the internal components of the device when they are damaged. On the other hand, since the bottom inside the polyurethane raw material mixing device with the above structure is mainly a flat bottom structure and there are no components for assisting in discharging materials inside the device, it is easy for polyurethane raw materials to adhere and remain inside the device during discharging, resulting in insufficient discharge of the mixed polyurethane raw materials and waste of polyurethane raw materials. The utility model connects the mixing frame and the box cover into one body through a turntable, and realizes the convenient plugging and unplugging fixation of the mixing material through the cooperation of a square slot and a square plug. Such a design can ensure the normal rotation and mixing of the mixing frame while realizing the convenient lifting and disassembly of the mixing frame and the box cover, thereby facilitating the convenient repair and maintenance of the mixing frame when it is damaged and improving the repair and maintenance efficiency of the internal components of the device when they are damaged. At the same time, when discharging, in cooperation with a high-pressure air pump and an annular spray cover, high-pressure gas is sprayed into the device, which can blow the polyurethane raw materials adhering to the inside of the device to the guide conical platform, so as to introduce the polyurethane raw materials into the discharge pipe through the guide conical platform, realize the full discharge of the polyurethane raw materials, and avoid the adhesion and waste of the polyurethane raw materials. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a polyurethane raw material self-mixing device of the utility model;

[0025] Figure 2 is a main cross-sectional view of a polyurethane raw material self-mixing device of the utility model.

[0026] The descriptions of the reference numerals are as follows:

[0027] 1. Feed hopper; 2. Box cover; 3. Mixing box; 4. Operation panel; 5. Push handle; 6. Battery; 7. Mobile base; 8. Motor; 9. Discharge pipe; 10. High-pressure air pump; 11. Annular spray cover; 12. Square slot; 13. Mixing rack; 14. Square insertion rod; 15. Turntable; 16. Guide cone. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] As Figure 1 - Figure 2 shown, a polyurethane raw material self-mixing device in this embodiment includes a mixing box 3. The top end of the mixing box 3 is connected with a box cover 2 through a buckle. The middle part of the bottom end of the box cover 2 is connected with a mixing rack 13 through a turntable 15. A square slot 12 is formed in the middle part of the bottom end of the mixing rack 13. The square insertion rod 14 and the square slot 12 can cooperate to conveniently transmit the power of the motor 8 to the mixing rack 13, so as to realize the convenient rotation of the mixing rack 13 and achieve the mixing and stirring of the polyurethane raw materials. The square insertion rod 14 is arranged in the square slot 12, and the bottom end of the square insertion rod 14 is connected with the power output shaft of the motor 8. A guide cone 16 is formed at the bottom end inside the mixing box 3. A discharge pipe 9 with a built-in valve is installed at the discharge port of the mixing box 3. The outer periphery of the top end inside the box cover 2 is fixed with an annular spray cover 11. The air inlet of the annular spray cover 11 is connected with a high-pressure air pump 10 fixed outside the mixing box 3 through a detachable pipe. When discharging, blowing air into the annular spray cover 11 through the high-pressure air pump 10 can make the high-pressure gas spray the inside of the mixing box 3 conveniently, so as to reduce the adhesion and residue of the polyurethane raw materials inside the mixing box 3 after mixing and stirring, and ensure the full discharge of the mixed polyurethane raw materials.

[0030] As Figure 1 - Figure 2 shown, in this embodiment, the turntable 15 is rotatably connected with the box cover 2. The part of the box cover 2 located at the turntable 15 is a hollow structure. With the help of the turntable 15, the convenient rotation of the mixing rack 13 relative to the box cover 2 can be realized. The size of the square slot 12 matches the size of the square insertion rod 14. The mixing rack 13 penetrates through the annular spray cover 11. The air jet openings of the annular spray cover 11 are radially oriented towards the inside of the mixing box 3. The constricted part of the guide cone 16 is communicated with the discharge pipe 9.

[0031] As Figure 1 - Figure 2As shown in the figure, in this embodiment, on one side of the upper end of the box cover 2, there is also a welded feed hopper 1 for feeding materials into the mixing tank 3. On the outer wall of the box cover 2, there is also a handle. Through the feed hopper 1, the polyurethane raw materials can be conveniently added into the mixing tank 3. In the middle of one side wall outside the mixing tank 3, there is an operation panel 4 connected by bolts for conveniently opening and closing the motor 8 and the high-pressure air pump 10. Below the operation panel 4 on the mixing tank 3, there is a welded U-shaped push handle 5. Below the push handle 5 on the mixing tank 3, there is a fixed storage battery 6. Under the action of the operation panel 4, the coordinated operation of the motor 8 and the high-pressure air pump 10 can be realized, thus ensuring the stable operation of the device. At the bottom end of the mixing tank 3, there is also a welded inverted U-shaped moving base 7 for conveniently installing and fixing the motor 8. The power output shaft of the motor 8 penetrates through the top end of the moving base 7 and the bottom end of the mixing tank 3. With the help of the moving base 7, the device can be flexibly moved according to actual usage needs.

[0032] The specific implementation process of this embodiment is as follows: During use, first add the raw materials for polyurethane processing into the mixing tank 3 through the feed hopper 1, and then just drive the mixing rack 13 to rotate under the action of the motor 8 to realize the mixing and stirring of the polyurethane raw materials. When the polyurethane raw materials need to be discharged after mixing, blowing air into the annular spray cover 11 with the help of the high-pressure air pump 10 can make the high-pressure gas spray the inside of the mixing tank 3 conveniently, so as to reduce the adhesion and residue of the polyurethane raw materials inside the mixing tank 3 after mixing and stirring, and ensure that the mixed polyurethane raw materials can be fully guided away and discharged under the action of the guiding conical platform 16. When the mixing rack 13 is damaged during the use of the device, just open the lock on the outside of the box cover 2 and then lift the box cover 2 upward to realize the convenient disassembly of the mixing rack 13, thus facilitating the efficient maintenance of the mixing rack 13 and improving the maintenance efficiency of the internal components of the device when they are damaged.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A polyurethane raw material self-mixing device, characterized in that: The invention comprises a mixing box (3), wherein the top of the mixing box (3) is connected to a box cover (2) through a lock, the middle of the bottom end of the box cover (2) is connected to a mixing frame (13) through a turntable (15), a square slot (12) is provided in the middle of the bottom end of the mixing frame (13), a square plug rod (14) is arranged in the square slot (12), the bottom end of the square plug rod (14) is connected to the power output shaft of the motor (8), a material guide cone (16) is formed at the bottom end of the mixing box (3), a discharge pipe (9) with a valve is installed at the discharge port on the mixing box (3), an annular spray hood (11) is fixed to the outer periphery of the top end of the box cover (2), and the air inlet of the annular spray hood (11) is connected to a high-pressure air pump (10) fixed to the outside of the mixing box (3) through a detachable pipeline.

2. A polyurethane raw material self-mixing device according to claim 1, characterized in that: The turntable (15) is rotatably connected to the box cover (2), and the box cover (2) is hollow in the area located on the turntable (15).

3. A polyurethane raw material self-mixing device according to claim 1, characterized in that: The size of the square slot (12) matches the size of the square insertion rod (14), and the mixing rack (13) passes through the annular spray hood (11).

4. A polyurethane raw material self-mixing device according to claim 1, characterized in that: The air jets of the annular spray hood (11) are radially directed toward the interior of the mixing box (3), and the constricted portion of the material guide cone (16) is connected to the discharge pipe (9).

5. The polyurethane raw material self-mixing device according to claim 1, characterized in that: A feeding hopper (1) for feeding materials into the mixing box (3) is welded to one side of the upper end of the box cover (2), and a lifting rod is provided on the outer wall of the box cover (2).

6. A polyurethane raw material self-mixing device according to claim 1, characterized in that: An operating panel (4) for realizing convenient opening and closing of the motor (8) and the high-pressure air pump (10) is connected to the middle of an outer side wall of the mixing box (3) by bolts; a U-shaped push handle (5) is welded to the mixing box (3) below the operating panel (4); and a storage battery (6) is fixed to the mixing box (3) below the push handle (5).

7. A polyurethane raw material self-mixing device according to claim 1, characterized in that: An inverted U-shaped mobile base (7) is welded to the bottom of the mixing box (3) for convenient installation and fixation of the motor (8), and the power output shaft of the motor (8) passes through the top of the mobile base (7) and the bottom of the mixing box (3).

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