Mixing equipment for polyurethane coating production

Abstract

The utility model discloses mixing equipment for polyurethane coating production, and relates to the technical field of polyurethane coating production and processing, the mixing equipment comprises a mixing box, a rotating rod is rotatably connected in the mixing box, a plurality of symmetrical bearing grooves are formed in the rod wall of the rotating rod, stirring rods are arranged in the bearing grooves, and the stirring rods are arranged in the bearing grooves. And rotating shafts are fixedly connected to two symmetrical surfaces of the plurality of stirring rods. A plurality of bearing grooves are formed in the rod wall of a rotating rod, a plurality of stirring rods are rotationally connected into the bearing grooves, a plurality of rotating shafts are fixedly connected to the two side faces of each stirring rod, and coil springs are fixedly connected to the outer walls of the rotating shafts and the inner walls of the bearing grooves jointly. And polyurethane residues adhered to the inner walls of the rotating rod and the mixing box are scraped, so that a polyurethane finished product is completely discharged out of the mixing box, and the waste of the polyurethane finished product is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane coating production and processing, in particular to a mixing device for polyurethane coating production. Background Art

[0002] Polyurethane coatings are a common type of coatings, which can be divided into two-component polyurethane coatings and one-component polyurethane coatings. Two-component polyurethane coatings are generally composed of two parts: isocyanate prepolymer and hydroxyl-containing resin, usually called curing agent component and main agent component. This type of coating generally has good mechanical properties, high solid content, and good performance in all aspects.

[0003] One-component polyurethane coatings are mainly used for floor coatings, anti-corrosion coatings, pre-coil coatings, etc. Their overall performance is not as comprehensive as two-component coatings. When processing polyurethane coatings, the coating raw materials need to be mixed and stirred to synthesize the coating, and mixing equipment is needed at this time.

[0004] After searching, the applicant found that a Chinese patent disclosed "a mixing device for the production and processing of polyurethane waterproof coatings", and its announcement number is "CN209917738U". This patent is mainly designed with a clamping frame, a threaded rod, a connecting frame, a rotating sleeve, a rotating rod, and a rotating disk. The staff can rotate the rotating disk, so that the rotating disk drives its No. 1 gear to rotate through the rotating rod, so that the No. 1 gear will be meshed with the No. 2 gear, so that the No. 2 gear forces its threaded rod to rotate. When the threaded rod rotates, it will rotate with the clamping frame, causing the clamping frame to slide in the connecting frame, and the length of the clamping frame can be expanded outward, and finally the scraper and the main body of the equipment are in contact and friction. Therefore, when the equipment is used and cleaned, the connecting frame can be manually stretched to adjust the distance between the scraper and the inner wall;

[0005] The device in the above patent can manually adjust the scraper to contact the equipment body through the staff, and then scrape and clean the inner wall of the equipment through the scraper. However, when the scraper rotates and stirs, there will still be a part of the polyurethane residue sticking to the scraper, resulting in the discharge of the material cannot be completely discharged from the equipment body, resulting in waste of finished products. Utility Model Content

[0006] The purpose of the utility model is to provide a mixing device for the production of polyurethane coatings, so as to solve the problem raised in the above background technology that when the scraper rotates and stirs, a part of the polyurethane will still remain on the scraper and stick to the scraper, resulting in the inability to completely discharge the material from the equipment body, resulting in waste of finished products.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing device for the production of polyurethane coatings, comprising a mixing box, a rotating rod rotatably connected to the inside of the mixing box, a rod wall of the rotating rod is provided with a plurality of symmetrical receiving grooves, a plurality of the receiving grooves are provided with stirring rods, two symmetrical surfaces of the plurality of stirring rods are fixedly connected with rotating shafts, the plurality of rotating shafts are inserted into the two side walls of the receiving grooves, the rod walls of the plurality of rotating shafts are fixedly connected with coil springs, and the ends of the plurality of coil springs away from the rotating shafts are fixedly connected to the inside of the side wall of the receiving groove.

[0008] Preferably, slide grooves are provided on two symmetrical sides of the inner wall of the mixing box, wherein a guide rod is fixedly connected to the interior of one of the slide grooves, and a threaded rod is rotatably connected to the interior of the other slide groove.

[0009] Preferably, the threaded rod and the rod wall of the guide rod are both slidably connected with a slider, and the two sliders are commonly fixedly connected with a scraper, and the scraper is slidably connected to the rotating rod.

[0010] Preferably, a driving motor is fixedly connected to the top surface of the mixing box, and an output end of the driving motor is fixedly connected to the top end of the rotating rod.

[0011] Preferably, a reciprocating motor is fixedly connected to the top surface of the mixing box, and an output end of the reciprocating motor is fixedly connected to the top end of the threaded rod.

[0012] Preferably, a group of support frames are fixedly connected to the top surface of the mixing box, and two of the support frames are commonly fixedly connected to a feed box.

[0013] Preferably, the outer wall of the feed box is provided with scales, the top of the feed box is provided with a box cover, the bottom end of the feed box is fixedly connected with a feed pipe, the outer wall of the feed pipe is provided with a first valve, and the feed pipe is connected with a mixing box.

[0014] Preferably, a discharge pipe is fixedly connected to the bottom surface of the mixing box, and a second valve is fixedly connected to the outer wall of the discharge pipe.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The utility model provides a plurality of receiving grooves on the rod wall of the rotating rod, and a plurality of stirring rods are rotatably connected in the plurality of receiving grooves. A plurality of rotating shafts are fixedly connected to the two side surfaces of the stirring rods, and a coil spring is fixedly connected to the outer wall of the rotating shaft and the inner wall of the receiving groove. When the scraper moves downward, the polyurethane residue adhering to the stirring rod, the rotating rod and the inner wall of the mixing box can be scraped off, and then the polyurethane finished product can be completely discharged from the mixing box to avoid the waste of the polyurethane finished product.

[0017] 2. The utility model provides a group of support frames at the top of the mixing box, and a feed box is fixedly connected between the support frames. At the same time, the outer wall of the feed box is provided with scales, so that when the raw materials are added, they can be added to the mixing box in a quantitative proportion, so that the synthesized polyurethane material can exert the best performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating rod of the utility model.

[0020] Figure 3 It is a schematic diagram of the front cross-sectional structure of the mixing box of the utility model.

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the rotating rod of the utility model.

[0022] In the figure: 1. mixing box; 2. rotating rod; 3. receiving trough; 4. stirring rod; 5. rotating shaft; 6. coil spring; 7. driving motor; 8. slide groove; 9. threaded rod; 10. guide rod; 11. slider; 12. scraper; 13. reciprocating motor; 14. support frame; 15. feed box; 16. scale; 17. discharge pipe; 18. first valve; 19. box cover; 20. discharge pipe; 21. second valve. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides Figure 1-4 A mixing device for the production of polyurethane coatings is shown, including a mixing box 1, wherein a rotating rod 2 is rotatably connected inside the mixing box 1, and a rod wall of the rotating rod 2 is provided with a plurality of symmetrical receiving grooves 3, and a stirring rod 4 is provided inside the plurality of receiving grooves 3, and two symmetrical surfaces of the plurality of stirring rods 4 are fixedly connected with a rotating shaft 5, and the plurality of rotating shafts 5 are inserted into the two side walls of the receiving groove 3, and the rod walls of the plurality of rotating shafts 5 are fixedly connected with a coil spring 6, and one end of the plurality of coil springs 6 away from the rotating shaft 5 is fixedly connected to the inside of the side wall of the receiving groove 3, and the coil spring 6 is fixedly connected to the inside of the receiving groove 3 through the rotating shaft 5. At this time, due to the elastic force of the coil spring 6 and the dead weight of the stirring rod 4, the stirring rod 4 can always maintain a horizontal state.

[0025] like Figure 1 As shown, a group of support frames 14 are fixedly connected to the top surface of the mixing box 1, and a feed box 15 is fixedly connected to the two support frames 14. The outer wall of the feed box 15 is provided with a scale 16, and the top of the feed box 15 is provided with a box cover 19. The bottom end of the feed box 15 is fixedly connected to a discharge pipe 17, and the outer wall of the discharge pipe 17 is provided with a first valve 18. The discharge pipe 17 is connected to the mixing box 1. Through the scale 16 on the outer wall of the feed box 15, when adding raw materials, the raw materials can be added according to a certain proportion to ensure the best performance of the coating.

[0026] like Figure 1 As shown, a discharge pipe 20 is fixedly connected to the bottom surface of the mixing box 1 , and a second valve 21 is fixedly connected to the outer wall of the discharge pipe 20 .

[0027] like Figure 3 As shown, slide grooves 8 are provided on two symmetrical sides of the inner wall of the mixing box 1, wherein a guide rod 10 is fixedly connected inside one of the slide grooves 8, and a threaded rod 9 is rotatably connected inside the other slide groove 8, and a driving motor 7 is fixedly connected to the top surface of the mixing box 1, and the output end of the driving motor 7 is fixedly connected to the top end of the rotating rod 2.

[0028] like Figure 3 As shown, the rod walls of the threaded rod 9 and the guide rod 10 are slidably connected with a slider 11, the two sliders 11 are commonly fixedly connected with a scraper 12, the scraper 12 is slidably connected with the rotating rod 2, and the top surface of the mixing box 1 is fixedly connected with a reciprocating motor 13, and the output end of the reciprocating motor 13 is fixedly connected to the top end of the threaded rod 9.

[0029] Working principle of the utility model: When the utility model is used, first open the box cover 19, add a certain amount of raw materials into the feed box 15, open the first valve 18, and drop the raw materials into the mixing box 1 through the feeding pipe 17, and then mix and stir the raw materials;

[0030] First, start the driving motor 7, and drive the rotating rod 2 to rotate through the output end of the driving motor 7, and drive the stirring rod 4 to rotate through the rotation of the rotating rod 2. When the mixing is completed, open the second valve 21 and discharge the material through the discharge pipe 20. At this time, start the reciprocating motor 13 at the same time, and drive the threaded rod 9 to rotate through the output end of the reciprocating motor 13, and drive the slider 11 to move through the rotation of the threaded rod 9. The scraper 12 moves downward through the movement of the slider 11. When it moves to the stirring rod 4, the scraper 12 squeezes the stirring rod 4, forcing the stirring rod 4 to retract into the receiving groove 3, and at the same time scrapes off the polyurethane residue adhering to the surface of the stirring rod 4 and the outer wall of the rotating rod 2 until the scraper 12 moves to the bottom of the inner wall of the mixing box 1. Through the squeezing of the scraper 12, the polyurethane finished product can be completely discharged from the mixing box 1. This article highlights the innovative structure and does not elaborate on the prior art.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mixing device for producing polyurethane coatings, comprising a mixing box (1), characterized in that: The mixing box (1) is rotatably connected to a rotating rod (2) inside, and the rod wall of the rotating rod (2) is provided with a plurality of symmetrical receiving grooves (3), and a stirring rod (4) is provided inside the plurality of receiving grooves (3), and two symmetrical surfaces of the plurality of stirring rods (4) are fixedly connected to a rotating shaft (5), and the plurality of rotating shafts (5) are inserted into the two side walls of the receiving groove (3), and the rod walls of the plurality of rotating shafts (5) are fixedly connected to a coil spring (6), and the ends of the plurality of coil springs (6) away from the rotating shaft (5) are fixedly connected to the inside of the side wall of the receiving groove (3).

2. A mixing device for producing polyurethane coatings according to claim 1, characterized in that: The mixing box (1) has two symmetrical inner walls provided with slide grooves (8), wherein a guide rod (10) is fixedly connected to the interior of one of the slide grooves (8), and a threaded rod (9) is rotatably connected to the interior of the other slide groove (8).

3. A mixing device for producing polyurethane coatings according to claim 2, characterized in that: The rod walls of the threaded rod (9) and the guide rod (10) are both slidably connected with a slider (11), and the two sliders (11) are commonly fixedly connected with a scraper (12), and the scraper (12) is slidably connected with the rotating rod (2).

4. A mixing device for producing polyurethane coatings according to claim 1, characterized in that: The top surface of the mixing box (1) is fixedly connected to a driving motor (7), and the output end of the driving motor (7) is fixedly connected to the top end of the rotating rod (2).

5. The mixing equipment for producing polyurethane coating according to claim 1, characterized in that: A reciprocating motor (13) is fixedly connected to the top surface of the mixing box (1), and the output end of the reciprocating motor (13) is fixedly connected to the top end of the threaded rod (9).

6. A mixing device for producing polyurethane coatings according to claim 1, characterized in that: A group of support frames (14) are fixedly connected to the top surface of the mixing box (1), and two of the support frames (14) are fixedly connected to a feed box (15).

7. A mixing device for producing polyurethane coatings according to claim 6, characterized in that: The outer wall of the feed box (15) is provided with a scale (16), the top of the feed box (15) is provided with a box cover (19), the bottom end of the feed box (15) is fixedly connected with a feed pipe (17), the outer wall of the feed pipe (17) is provided with a first valve (18), and the feed pipe (17) is connected with the mixing box (1).

8. The mixing equipment for producing polyurethane coating according to claim 1, characterized in that: A discharge pipe (20) is fixedly connected to the bottom surface of the mixing box (1), and a second valve (21) is fixedly connected to the outer wall of the discharge pipe (20).

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