Mixing equipment for mixing coating

Abstract

The utility model discloses mixing equipment for mixing paint, which comprises a mixing tank, a mixing motor is fixedly mounted on the rear end face of the mixing tank, and an output shaft of the mixing motor is connected with a mixing hollow rotating shaft positioned in the mixing tank through a coupler. And a plurality of mixing sleeves are fixedly mounted on the upper and lower end surfaces of the mixing hollow rotating shaft. The material discharging device has the advantages that the arc-shaped scrapers can be ensured to be in contact with the inner wall of the material mixing tank only in the material discharging process through the scraper position adjusting mechanism, so that the friction time between the arc-shaped scrapers and the inner wall of the material mixing tank in the operation process of equipment is shortened, and the material discharging efficiency is improved. Meanwhile, it can be ensured that the arc-shaped scraping plate with the diameter reduced due to friction can be always attached to the inner wall of the mixing tank, the arc-shaped scraping plate can be continuously used, and the service life of the arc-shaped scraping plate is prolonged through the technical scheme.

Description

Technical Field

[0001] The utility model relates to the technical field of material mixing, in particular to a material mixing device used for mixing coatings. Background Art

[0002] The mixing equipment used for coating mixing is a kind of equipment that mixes various components in the coating evenly by mechanical stirring. It is usually composed of a motor, a stirring paddle and a container. The motor drives the stirring paddle to rotate, so that the particles in the coating are constantly moving and colliding, thereby achieving mixing of the components;

[0003] Patent number CN220780052U in the prior art is an automatic mixing device for a powder coating production line. The stirring shaft drives two fixed rods to rotate. The two fixed rods cooperate with the annular groove and the two sliding blocks to drive two arc-shaped scrapers to slide on the inner wall of the mixing tank. The powder attached to the inner wall of the mixing tank can be scraped off, thereby solving the problem that part of the powder will adhere to the inner wall of the mixing tank during stirring and mixing. The powder attached to the inner wall of the mixing tank cannot be well processed, resulting in insufficient utilization of the powder, thereby wasting powder resources.

[0004] However, when using this mixing equipment, its arc scraper will continuously rub against the inner wall of the mixing tank during the operation of the equipment. The diameter of the arc scraper will gradually decrease during the continuous friction with the inner wall of the mixing tank until it can no longer make contact with the inner wall of the mixing tank. At this time, in order to scrape off the powder contaminated on the inner wall of the mixing tank, a new arc scraper needs to be replaced, and the removed arc scraper can no longer be used and has a short service life. Therefore, it does not meet the existing needs. In this regard, we propose a mixing equipment for coating mixing. Utility Model Content

[0005] The purpose of the utility model is to provide a mixing device for coating mixing, so as to solve the problem proposed in the above-mentioned background technology that when using this mixing device, its arc scraper will continuously generate friction with the inner wall of the mixing tank during the operation of the equipment, and the diameter of the arc scraper will gradually decrease during the continuous friction with the inner wall of the mixing tank until it can no longer come into contact with the inner wall of the mixing tank. At this time, in order to scrape off the powder contaminated on the inner wall of the mixing tank, a new arc scraper needs to be replaced, and the removed arc scraper can no longer be used and its service life is short.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing device for coating mixing, comprising a mixing tank, a mixing motor is fixedly installed on the rear end face of the mixing tank, the output shaft of the mixing motor is connected to a mixing hollow shaft located inside the mixing tank through a coupling, a plurality of mixing sleeves are fixedly installed on the upper and lower end faces of the mixing hollow shaft, each of the mixing sleeves is provided with a mixing rod fitted with its inner wall, the upper end faces of all mixing rods located above the mixing hollow shaft are fixedly connected with an arc-shaped scraper, the lower end faces of all mixing rods located below the mixing hollow shaft are also fixedly connected with an arc-shaped scraper, a scraper position adjustment mechanism is provided inside the mixing hollow shaft, and the two arc-shaped scrapers can be moved inward or outward synchronously by the scraper position adjustment mechanism.

[0007] Preferably, the scraper position adjustment mechanism includes an adjustment motor, the output shaft of the adjustment motor is connected to a transmission shaft through a coupling, the outer side of the rear end of the transmission shaft is provided with an internal threaded sleeve fixed to the inside of the mixing tank, the middle position and the rear end of the internal threaded sleeve are both located inside the mixing hollow shaft, and the internal threaded sleeve located inside the mixing hollow shaft is connected to the mixing hollow shaft through a roller bearing.

[0008] Preferably, the interior of the internal threaded sleeve is provided with a threaded column matching its internal thread, a square slot is provided in the middle of the front end face of the threaded column, a square rod is inserted into the square slot, and the front end face of the square rod is fixed to the transmission shaft.

[0009] Preferably, the inner wall of the square slot has a square cross-sectional shape, the outer surface of the square rod fits with the inner wall of the square slot, and the square rod is slidably connected to the square slot.

[0010] Preferably, a long rotating shaft is connected to the middle position of the rear end surface of the threaded column, and a plurality of bevel rings are provided on the outer surface fixed sleeve of the long rotating shaft, the number of the bevel rings is half the number of the mixing rods, and the surface of the bevel ring facing the mixing rod and the surface of the mixing rod facing the bevel ring are both inclined surfaces.

[0011] Preferably, a metal rod located on the inner wall of the mixing sleeve is provided on both sides of the mixing rod, a spring is sleeved on the outer surface of the metal rod, one end of the spring is connected to a movable sleeve with a metal sleeve on the outer surface of the spring, and the surface of the metal sleeve facing the mixing rod is fixed to the mixing rod.

[0012] Preferably, a support plate is provided below the adjustment motor, the surface of the support plate facing the mixing tank is fixed to the mixing tank, a support rod is fixed on both sides of the lower end surface of the support plate, and the other end of the support rod is fixed to the mixing tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can adjust the positions of two arc-shaped scrapers located inside the mixing tank through the scraper position adjustment mechanism. When the equipment is performing a mixing operation, the position of the arc-shaped scraper is adjusted so that it is one to two centimeters away from the inner wall of the mixing tank. When discharging after the mixing operation is completed, the position of the arc-shaped scraper is adjusted through the scraper position adjustment mechanism so that it contacts the inner wall of the mixing tank, so that the powder contaminated on the inside of the mixing tank is scraped off by the arc-shaped scraper. The above technical solution reduces the time of friction between the arc-shaped scraper and the inner wall of the mixing tank during the operation of the equipment, thereby increasing the service life of the arc-shaped scraper;

[0015] 2. The utility model can move the arc scraper outward through the scraper position adjustment mechanism when the arc scraper has been used for a period of time and its outer surface has reduced in diameter due to wear, until the arc scraper with reduced diameter contacts the inner wall of the mixing tank. The above technical solution can ensure that the arc scraper with reduced diameter due to friction can always fit the inner wall of the mixing tank, so that it can continue to be used, thereby further improving the service life of the arc scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is the front view of the internal structure of the utility model as a whole;

[0018] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0019] Figure 4 For this utility model Figure 3 A magnified view of the structure at point B.

[0020] In the figure: 1. mixing tank; 2. mixing motor; 3. adjustment motor; 4. mixing hollow shaft; 5. mixing sleeve; 6. mixing rod; 7. arc scraper; 8. metal rod; 9. spring; 10. metal sleeve; 11. transmission shaft; 12. internal thread sleeve; 13. threaded column; 14. square slot; 15. square rod; 16. long shaft; 17. bevel ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The mixing tank 1 (model BSCH-500), the mixing motor 2 (model 80-355Y) and the threaded column 13 (model M16) mentioned in the utility model can be purchased from the market or obtained by private customization.

[0023] like Figure 1 and Figure 2 As shown, an embodiment of the utility model is: a mixing device for coating mixing, comprising a mixing tank 1, a mixing motor 2 is fixedly installed on the rear end face of the mixing tank 1, the output shaft of the mixing motor 2 is connected to a mixing hollow shaft 4 located inside the mixing tank 1 through a coupling, a plurality of mixing sleeves 5 are fixedly installed on the upper and lower end faces of the mixing hollow shaft 4, each mixing sleeve 5 is provided with a mixing rod 6 fitted with its inner wall inside, the upper end faces of all mixing rods 6 located above the mixing hollow shaft 4 are fixedly connected with an arc scraper 7, the lower end faces of all mixing rods 6 located below the mixing hollow shaft 4 are also fixedly connected with an arc scraper 7, a scraper position adjustment mechanism is provided inside the mixing hollow shaft 4, and the two arc scrapers 7 can be moved inward or outward synchronously by the scraper position adjustment mechanism.

[0024] As the preferred technical solution of this embodiment, Figure 2 and Figure 3 As shown, the scraper position adjustment mechanism includes an adjustment motor 3, the output shaft of the adjustment motor 3 is connected to a transmission shaft 11 through a coupling, and the outer side of the rear end of the transmission shaft 11 is provided with an internal threaded sleeve 12 fixed to the inside of the mixing tank 1, the middle position and the rear end of the internal threaded sleeve 12 are both located inside the mixing hollow shaft 4, and the internal threaded sleeve 12 located inside the mixing hollow shaft 4 is connected to the mixing hollow shaft 4 through a roller bearing; when it is necessary to mix the raw materials located inside the mixing tank 1, the mixing motor 2 is started, and the mixing motor 2 can drive The mixing hollow shaft 4 connected thereto rotates inside the mixing tank 1. When the mixing hollow shaft 4 rotates inside the mixing tank 1, the mixing sleeve 5 located on the outer surface of the mixing hollow shaft 4, the mixing rod 6 located inside the mixing sleeve 5, and the arc-shaped scraper 7 fixed to the outer surface of the mixing rod 6 will rotate together inside the mixing tank 1 to mix the raw materials. When the mixing is completed, when discharging, the mixing motor 2 is turned off first and then the adjustment motor 3 is started. The adjustment motor 3 can drive the transmission shaft 11 connected thereto to rotate.

[0025] A threaded column 13 matching the internal thread of the internal threaded sleeve 12 is provided inside, and a square slot 14 is provided in the middle of the front end surface of the threaded column 13, and a square rod 15 is inserted inside the square slot 14, and the front end surface of the square rod 15 is fixed to the transmission shaft 11; the inner wall cross-section of the square slot 14 is square, the outer surface of the square rod 15 fits with the inner wall of the square slot 14, and the square rod 15 is slidably connected to the square slot 14; when the transmission shaft 11 rotates, the square rod 15 fixed thereto will also rotate accordingly, because the square rod 15 fits with the inner wall of the square slot 14 located on the outer surface of the threaded column 13, so when the square rod 15 rotates, it will drive the threaded column 13 to rotate synchronously, and the rotating threaded column 13 can move forward and backward through the internal thread transmission of the internal threaded sleeve 12;

[0026] A long rotating shaft 16 is connected to the middle position of the rear end surface of the threaded column 13, and a plurality of bevel rings 17 are fixedly sleeved on the outer surface of the long rotating shaft 16. The number of bevel rings 17 is half of the number of mixing rods 6, and the surface of the bevel ring 17 facing the mixing rod 6 and the surface of the mixing rod 6 facing the bevel ring 17 are both inclined surfaces; at this time, the threaded column 13 is moved backward, and the long rotating shaft 16 fixed thereto and the bevel ring 17 fixedly sleeved on the outer surface of the long rotating shaft 16 will move along with the movement of the threaded column 13. When the bevel ring 17 When moving backward, the mixing rod 6 will be pushed outward by the inclined surface located on the bevel ring 17 and the outer surface of the mixing rod 6. The arc scraper 7 fixed to the mixing rod 6 will also move along with it during the outward movement. When the arc scraper 7 contacts the inner wall of the mixing tank 1, the adjustment motor 3 is turned off, and then the mixing motor 2 is started again to drive the mixing hollow shaft 4, the mixing sleeve 5, the mixing rod 6 and the arc scraper 7 to rotate. The rotating arc scraper 7 can scrape off the powder contaminated on the inner wall of the mixing tank 1.

[0027] As the preferred technical solution of this embodiment, Figure 4As shown, both sides of the mixing rod 6 are provided with a metal rod 8 located on the inner wall of the mixing sleeve 5, and a spring 9 is sleeved on the outer surface of the metal rod 8. One end of the spring 9 is connected to a metal sleeve 10 that is movable and sleeved on the outer surface of the spring 9, and the surface of the metal sleeve 10 facing the mixing rod 6 is fixed to the mixing rod 6; when the mixing rod 6 is pushed outward, the metal sleeve 10 fixed to it will also move accordingly. When the metal sleeve 10 moves outward, it will squeeze the spring 9 accordingly. When the powder contaminated on the inner wall of the mixing tank 1 is completely scraped off, the mixing motor 2 is turned off, and the adjustment motor 3 is started again. At this time, the inclined ring 17 moves forward. When the inclined ring 17 moves forward, through The reaction force of the squeezed spring 9 can gradually push the mixing rod 6 and the arc scraper 7 back to their original positions, so that the arc scraper 7 does not come into contact with the inner wall of the mixing tank 1. The above technical solution ensures that the arc scraper 7 will come into contact with the inner wall of the mixing tank 1 only during the discharge process, thereby reducing the time of friction between the arc scraper 7 and the inner wall of the mixing tank 1 during the operation of the equipment, and at the same time ensures that the arc scraper 7, whose diameter is reduced due to friction, can always fit with the inner wall of the mixing tank 1, so that it can continue to be used. This structure increases the service life of the arc scraper 7.

[0028] As the preferred technical solution of this embodiment, Figure 2 As shown, a support plate is provided below the adjustment motor 3, and the surface of the support plate facing the mixing tank 1 is fixed to the mixing tank 1, and a support rod is fixed on both sides of the lower end surface of the support plate, and the other end of the support rod is fixed to the mixing tank 1; the adjustment motor 3 can be supported by the support plate located below the adjustment motor 3 to prevent it from falling.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A mixing device for mixing coatings, comprising a mixing tank (1), characterized in that: A mixing motor (2) is fixedly mounted on the rear end surface of the mixing tank (1); the output shaft of the mixing motor (2) is connected to a mixing hollow shaft (4) located inside the mixing tank (1) via a coupling; a plurality of mixing sleeves (5) are fixedly mounted on the upper and lower end surfaces of the mixing hollow shaft (4); each mixing sleeve (5) is provided with a mixing rod (6) fitted with its inner wall; the upper end surfaces of all mixing rods (6) located above the mixing hollow shaft (4) are fixedly connected to an arc scraper (7); the lower end surfaces of all mixing rods (6) located below the mixing hollow shaft (4) are also fixedly connected to an arc scraper (7); a scraper position adjustment mechanism is provided inside the mixing hollow shaft (4); the two arc scrapers (7) can be moved inward or outward synchronously by the scraper position adjustment mechanism.

2. A mixing device for coating mixing according to claim 1, characterized in that: The scraper position adjustment mechanism comprises an adjustment motor (3), the output shaft of the adjustment motor (3) is connected to a transmission shaft (11) via a coupling, an inner threaded sleeve (12) fixed to the inside of the mixing tank (1) is provided on the outer side of the rear end of the transmission shaft (11), the middle position and the rear end of the inner threaded sleeve (12) are both located inside the mixing hollow shaft (4), and the inner threaded sleeve (12) located inside the mixing hollow shaft (4) is connected to the mixing hollow shaft (4) via a roller bearing.

3. A mixing device for coating mixing according to claim 2, characterized in that: The inner thread sleeve (12) is provided with a thread column (13) matching the inner thread thereof, the middle position of the front end surface of the thread column (13) is provided with a square slot (14), the inner part of the square slot (14) is inserted with a square rod (15), and the front end surface of the square rod (15) is fixed to the transmission shaft (11).

4. A mixing device for coating mixing according to claim 3, characterized in that: The inner wall cross-section of the square slot (14) is in the shape of a square. The outer surface of the square rod (15) fits the inner wall of the square slot (14), and the square rod (15) is slidably connected to the square slot (14).

5. A mixing device for coating mixing according to claim 4, characterized in that: A long rotating shaft (16) is connected to the middle position of the rear end surface of the threaded column (13); a plurality of bevel rings (17) are fixedly sleeved on the outer surface of the long rotating shaft (16); the number of the bevel rings (17) is half the number of the mixing rods (6); and the surface of the bevel ring (17) facing the mixing rod (6) and the surface of the mixing rod (6) facing the bevel ring (17) are both inclined surfaces.

6. A mixing device for coating mixing according to claim 1, characterized in that: A metal rod (8) is provided on both sides of the mixing rod (6) and is located on the inner wall of the mixing sleeve (5). A spring (9) is sleeved on the outer surface of the metal rod (8). One end of the spring (9) is connected to a metal sleeve (10) that is movable and sleeved on the outer surface of the spring (9). The surface of the metal sleeve (10) facing the mixing rod (6) is fixed to the mixing rod (6).

7. A mixing device for coating mixing according to claim 2, characterized in that: A support plate is provided below the adjustment motor (3); the surface of the support plate facing the mixing tank (1) is fixed to the mixing tank (1); a support rod is fixedly provided on both sides of the lower end surface of the support plate; and the other end of the support rod is fixed to the mixing tank (1).

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