Fireproof coating mixing device

Abstract

The utility model discloses a fireproof coating mixing device, which belongs to the technical field of fireproof coating mixing and comprises a mixing bin, the top of the mixing bin is connected with a motor, the motor is connected with a first rotating shaft, the first rotating shaft is connected with a half gear, the first rotating shaft is connected with an annular half gear ring, and the half gear and the annular half gear ring are positioned on the same horizontal plane; a gear is arranged between the half gear and the annular half gear ring, and when the gear is meshed with the half gear, the gear is not meshed with the annular half gear ring; the mixing bin is rotationally connected with a second rotating shaft, the second rotating shaft is connected with the gear, the second rotating shaft penetrates through the top surface of the mixing bin and extends to the bottom of the mixing bin, and the outer wall of the second rotating shaft is connected with a plurality of stirring rods. The fire retardant coating mixing device has the advantages that fire retardant coating raw materials are well mixed uniformly, and the inner wall of the mixing bin is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of fire retardant coating mixing, in particular to a fire retardant coating mixing device. Background Art

[0002] Fire retardant coating is a special coating used on the surface of combustible substrates. It can reduce the flammability of the coated material, block the rapid spread of fire, and improve the fire resistance of the coated material. It is applied on the surface of combustible substrates to change the combustion characteristics of the material surface and block the rapid spread of fire; or applied on building components to improve the fire resistance of the components. Special coatings are called fire retardant coatings.

[0003] In the production process of fire retardant coating, stirring and mixing is an indispensable step. After searching, a variety of fire retardant coating mixing devices have appeared in the prior art, such as a fire retardant coating production mixing and stirring device shown in announcement number 202223527510.3, including a base, a stirring barrel is provided on the base, a fixed shaft is provided in the stirring barrel, a rotating shaft is provided in the fixed shaft, a plurality of first stirring blades are fixedly provided on the outside of the fixed shaft, and a plurality of second stirring blades are fixedly provided on the outside of the rotating shaft. The stirring blades are changed to fixed type, and the stirring barrel is driven to rotate by a motor, so that the fire retardant coating in the stirring barrel can be mixed. There are the following problems in the above device: 1. The stirring blade is fixed, and the stirring barrel is rotated. The rotation speed of the stirring barrel is reduced accordingly according to the size of the stirring barrel. As the stirring barrel rotates, the centrifugal force of the fire retardant coating in the stirring barrel may not be greater than the gravity. A part of the fire retardant coating may fall in advance or fail to rotate and rise with the stirring barrel during the process of following the stirring barrel to rise, and this part does not participate in the mixing; 2. After the stirring is completed, the fire retardant coating may adhere to the inner wall of the stirring barrel, affecting the next mixing of the fire retardant coating. Utility Model Content

[0004] In order to solve the above problems in the prior art, a fire retardant coating mixing device is provided.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The utility model proposes a fire-retardant coating mixing device, comprising a mixing bin, wherein a motor is connected to the top of the mixing bin, the motor is connected to a first rotating shaft, a half gear is connected to the first rotating shaft, the first rotating shaft is connected to an annular half gear ring, the half gear and the annular half gear ring are located in the same horizontal plane; a gear is provided between the half gear and the annular half gear ring, and when the gear is meshed with the half gear, the gear is not meshed with the annular half gear ring; the mixing bin is rotatably connected to a second rotating shaft, the second rotating shaft is connected to the gear, the second rotating shaft passes through the top surface of the mixing bin and extends to the bottom of the mixing bin, and a plurality of stirring rods are connected to the outer wall of the second rotating shaft.

[0007] Preferably, a scraper is connected to one end of the stirring rod away from the second rotating shaft, and the scraper is in contact with the inner wall of the mixing bin.

[0008] Preferably, a groove is provided at the end of the stirring rod, an extension rod is slidably arranged in the groove, a spring is also provided in the groove, one end of the spring is connected to the stirring rod, and the other end is connected to the end of the extension rod; the scraper is hinged with a guide plate, a slide groove is provided on the other side of the guide plate, a slider is slidably arranged in the slide groove, and the slider is connected to the extension rod.

[0009] Preferably, when the motor is not started, the slider is located in the middle of the slide slot, and at this time, the spring is in a compressed state.

[0010] Preferably, the slide groove is a 'T'-shaped groove.

[0011] Preferably, a feed pipe is connected above the mixing bin, and a discharge pipe is connected below the mixing bin.

[0012] Preferably, valves are provided at both the feed pipe and the discharge pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model provides a motor above the mixing bin, the motor is connected to the first rotating shaft, the first rotating shaft is connected to the half gear, the first rotating shaft is connected to the annular half gear ring, the half gear and the annular half gear ring are located in the same horizontal plane; a gear is provided between the half gear and the annular half gear ring; the mixing bin is rotatably connected to the second rotating shaft, the second rotating shaft is connected to the gear, the second rotating shaft passes through the top surface of the mixing bin and extends to the bottom of the mixing bin, and the outer wall of the second rotating shaft is connected to a plurality of stirring rods; the first rotating shaft is driven to rotate by starting the motor, and then the half gear and the annular half gear ring are driven to rotate in the same direction, when the gear is meshed with the half gear, the gear rotates clockwise, and then drives the second rotating shaft to rotate clockwise together, and when the gear is meshed with the annular half gear ring, the gear is no longer meshed with the half gear, and the gear drives the second rotating shaft to rotate counterclockwise, thereby realizing the two-way rotation of the stirring rod, so that the fire retardant coating is mixed evenly.

[0015] 2. The utility model also connects a scraper through the end of the stirring rod away from the second rotating shaft, and the scraper is in contact with the inner wall of the mixing bin; a groove is provided at the end of the stirring rod, a spring and an extension rod are provided in the groove, and both ends of the spring are respectively connected to the inner wall of the groove of the stirring rod and the extension rod; the scraper is hinged with a guide plate, and the guide plate is provided with a slide groove, and a slider is provided in the slide groove for sliding, and the slider is connected to the extension rod. When the stirring rod rotates clockwise following the second rotating shaft, the stirring rod drives the extension rod to rotate together, and then drives the slider to move along the slide groove. When the slider moves to the end of the slide groove, the guide plate contacts the inner wall of the mixing bin, so that the fire retardant coating located at the edge of the mixing bin gathers to the middle stirring zone, further improving the mixing uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the utility model;

[0018] Figure 2 It is a half-section view of the mixing bin of the utility model (the annular half gear ring and the half gear are not shown in the figure);

[0019] Figure 3 It is a cross-sectional view of the interior of the mixing bin;

[0020] Figure 4 is a schematic diagram of the groove;

[0021] Figure 5 It is a schematic diagram of the chute.

[0022] Description of reference numerals:

[0023] 1. Mixing bin; 2. Motor; 3. Half gear; 4. Annular half gear ring; 5. Gear; 6. Second rotating shaft; 7. Stirring rod; 8. Scraper; 9. Guide plate; 10. Inclined surface; 11. Groove; 12. Extension rod; 13. Spring; 14. Feed pipe; 15. Discharge pipe; 16. Slide; 17. Slider. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Embodiment 1

[0026] like Figure 1-5 A fire retardant coating mixing device shown includes a mixing chamber 1, a motor 2 is connected to the top of the mixing chamber 1, the motor 2 is connected to a first rotating shaft, a half gear 3 is connected to the first rotating shaft, the first rotating shaft is auxiliaryly connected to an annular half gear ring 4, the half gear 3 and the annular half gear ring 4 are located in the same horizontal plane, that is, when the first rotating shaft rotates, the half gear 3 and the annular half gear ring 4 are driven to rotate in the same direction; a gear 5 is provided between the half gear 3 and the annular half gear ring 4, when the gear 5 is meshed with the half gear 3, the gear 5 is not meshed with the annular half gear ring 4; the mixing chamber 1 is rotatably connected to a second rotating shaft 6, the second rotating shaft 6 is connected to the gear 5, the second rotating shaft 6 passes through the top surface of the mixing chamber 1 and extends to the bottom of the mixing chamber 1, and the outer wall of the second rotating shaft 6 is connected to a plurality of stirring rods 7.

[0027] A feed pipe 14 is connected above the mixing bin 1, and a discharge pipe 15 is connected below the mixing bin 1. Valves are provided at the feed pipe 14 and the discharge pipe 15.

[0028] Here’s how it works:

[0029] The raw material of the fire-retardant coating enters the mixing bin 1 through the feed pipe 14, and the motor 2 is started. The motor 2 drives the annular half gear ring 4 and the half gear 3 to rotate counterclockwise. When the gear 5 is meshed with the half gear 3, the gear 5 rotates clockwise, and then drives the second rotating shaft 6 to rotate clockwise together, so that the stirring rod 7 rotates clockwise; when the gear 5 is meshed with the teeth of the annular half gear ring 4, the gear 5 is no longer meshed with the half gear 3. With the counterclockwise rotation of the annular half gear ring 4, the gear 5 is driven to rotate counterclockwise, and then drives the second rotating shaft 6 to rotate counterclockwise, so that the stirring rod 7 rotates counterclockwise. The bidirectional rotation of the second rotating shaft 6 is realized by the annular half gear ring 4 and the half gear 3, and bidirectional stirring is realized, so that the fire-retardant coating is mixed evenly and the stirring and mixing efficiency is improved.

[0030] Embodiment 2

[0031] Continue to refer to the attached Figure 1-5 One end of the stirring rod 7 away from the second rotating shaft 6 is connected to a scraper 8, and the scraper 8 is in contact with the inner wall of the mixing bin 1.

[0032] A groove 11 is provided at the end of the stirring rod 7, and an extension rod 12 is slidably arranged in the groove 11. A spring 13 is also provided in the groove 11, and one end of the spring 13 is connected to the stirring rod 7, and the other end is connected to the end of the extension rod 12; the end of the extension rod 12 is in a 'T' shape to prevent the extension rod 12 from escaping from the groove 11 of the stirring rod 7. A guide plate 9 is hingedly connected to the end of the scraper 8 that does not contact the mixing bin 1. The cross-sectional shape of the guide plate 9 is a trapezoid. The two inclined surfaces 10 of the guide plate 9 make the fire retardant coating raw materials at the edge of the mixing bin 1 gather to the position of the central stirring rod 7 when following the rotation of the stirring rod 7; a slide groove 16 is provided on the other side of the guide plate 9, and a slider 17 is slidably arranged in the slide groove 16, and the slider 17 is connected to the extension rod 12.

[0033] In this embodiment, a notch is provided at the bottom of the mixing bin 1, a bin door is rotatably connected at the notch, a latch is connected to the outer wall of the bin door, and a latch seat for fixing the latch is connected to the outer wall of the mixing bin 1. After the fire retardant coating raw materials are mixed, the bin door is opened to clean the bottom of the mixing bin 1 through the notch.

[0034] When the motor 2 is not started, the slider 17 is located in the middle of the slide slot 16 . At this time, the spring 13 is in a compressed state, the slide slot 16 is a T-shaped slot, and the slider 17 is separated from the slide slot 16 .

[0035] When the stirring rod 7 rotates clockwise following the second rotating shaft 6, the stirring rod 7 drives the extension rod 12 to rotate together, and then drives the slider 17 to move to the right along the slide groove 16. At the same time, under the action of the spring 13, the extension rod 12 slides outward along the groove 11, so that the guide plate 9 rotates relative to the scraper 8. When the slider 17 moves to the end of the slide groove 16, the guide plate 9 contacts the inner wall of the mixing bin 1. Under the action of the inclined surface 10 of the guide plate 9, the fire retardant coating located at the inner edge of the mixing bin 1 is gathered to the middle stirring zone, further improving the mixing uniformity; when the stirring rod 7 rotates counterclockwise following the second rotating shaft 6, the stirring rod 7 drives the slider 17 to move to the left along the slide groove 16 through the extension rod 12, so that the other end of the guide plate 9 contacts the inner wall of the mixing bin 1.

[0036] At the same time, after the mixing of the fire-retardant coating raw materials is completed, the fire-retardant coating is discharged from the mixing bin 1 through the discharge pipe 15. At this time, the motor 2 is started to drive the half gear 3 and the annular half gear ring 4 to rotate, and then the second shaft 6 is driven to rotate through the gear 5, and then the scraper 8 and the guide plate 9 are driven by the stirring rod 7 to clean the inner wall of the mixing bin 1 to prevent affecting the mixing of the next fire-retardant coating raw materials. The guide plate 9 guides the fire-retardant coating raw materials at the edge of the mixing bin 1 to gather in the middle stirring area during the mixing. After the mixing is completed, the guide plate 9 also acts as a scraper 8 to improve the mixing efficiency, reduce the time required for mixing, and ensure the use effect of the next fire-retardant coating after mixing.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fire retardant coating mixing device, comprising a mixing chamber (1), the top of which is connected to a motor (2), characterized in that: The motor (2) is connected to a first rotating shaft, a half gear (3) is connected to the first rotating shaft, and the first rotating shaft is connected to an annular half gear ring (4), and the half gear (3) and the annular half gear ring (4) are located in the same horizontal plane; a gear (5) is provided between the half gear (3) and the annular half gear ring (4), and when the gear (5) is meshed with the half gear (3), the gear (5) is not meshed with the annular half gear ring (4); the mixing chamber (1) is rotatably connected to a second rotating shaft (6), the second rotating shaft (6) is connected to the gear (5), the second rotating shaft (6) passes through the top surface of the mixing chamber (1) and extends to the bottom of the mixing chamber (1), and the outer wall of the second rotating shaft (6) is connected to a plurality of stirring rods (7).

2. The fire retardant coating mixing device according to claim 1, characterized in that: One end of the stirring rod (7) away from the second rotating shaft (6) is connected to a scraper (8), and the scraper (8) is in contact with the inner wall of the mixing bin (1).

3. The fire retardant coating mixing device according to claim 2, characterized in that: The end of the stirring rod (7) is provided with a groove (11), an extension rod (12) is slidably arranged in the groove (11), and a spring (13) is also arranged in the groove (11), one end of the spring (13) is connected to the stirring rod (7), and the other end is connected to the end of the extension rod (12); the scraper (8) is hinged with a guide plate (9), the other side of the guide plate (9) is provided with a slide groove (16), a slider (17) is slidably arranged in the slide groove (16), and the slider (17) is connected to the extension rod (12).

4. The fire retardant coating mixing device according to claim 3, characterized in that: When the motor (2) is not started, the slider (17) is located in the middle position of the slide groove (16), and at this time, the spring (13) is in a compressed state.

5. The fire retardant coating mixing device according to claim 3, characterized in that: The slide groove (16) is a 'T' shaped groove.

6. The fire retardant coating mixing device according to claim 1, characterized in that: The mixing bin (1) is connected with a feed pipe (14) at the top, and a discharge pipe (15) at the bottom.

7. The fire retardant coating mixing device according to claim 6, characterized in that: The feed pipe (14) and the discharge pipe (15) are both provided with valves.

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