Drying device for exterior wall coating production

Abstract

The utility model discloses a drying device for outer wall coating production, and belongs to the technical field of coating processing equipment. A drying device for exterior wall coating production comprises a box body, a heating chamber is formed in the box body, an electric heating pipe is arranged at the bottom of the heating chamber, conveying pipes are arranged on the two sides of the heating chamber, inlets of the conveying pipes are located at the bottom of the heating chamber, outlets of the conveying pipes are located at the top of the heating chamber, and the conveying pipes are arranged in the heating chamber. A liftable material turning mechanism is arranged in the heating chamber, the edge of the material turning mechanism is attached to the inner wall of the heating chamber, and a one-way valve structure through which coating can only pass from top to bottom is arranged on the material turning mechanism; the coating mixing device has the advantages that rapid mixing is facilitated, and coating mixing is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of paint processing equipment, in particular to a drying device for producing exterior wall paint. Background Art

[0002] Exterior wall decoration is directly exposed to nature and is subject to wind, rain and sun. Therefore, the paint is required to be water-resistant, color-retaining, pollution-resistant, aging-resistant and have good adhesion. It also has the characteristics of good freeze-thaw resistance and low film-forming temperature. Exterior wall paint is used to paint the exterior walls of buildings, so the most important indicator is resistance to ultraviolet radiation, and it is required to achieve long-term exposure without discoloration. Since 2013, energy-saving and environmentally friendly liquid stone water-based paint has attracted more and more attention. Some exterior wall paints are also required to have water resistance and self-cleaning properties. The paint film should be hard and smooth, and dirt will fall off with a wash. Exterior wall paint can be used for interior wall painting because it also has water resistance; while interior wall paint does not have sun resistance, so interior wall paint cannot be used as exterior wall paint.

[0003] During the production process of existing exterior wall paints, it is necessary to control the liquid ratio in the paint at different concentrations. Most of the existing methods for controlling the liquid ratio are to add additives, which can easily affect the composition ratio of the exterior wall paint, causing the functionality of the paint to decrease and affecting the use effect of the product. Therefore, reducing the moisture in the paint by drying can effectively change the liquid ratio.

[0004] After searching, it is found that the existing drying devices have complex structures and general heating efficiency. For example, the utility model with announcement number CN210021194U discloses a drying device for exterior wall paint production, which drives a stirring rod to perform alternating forward and reverse reciprocating motions through a driving motor to stir the paint. When the stirring rod mainly rotates in the horizontal direction, the liquid surface on the top of the paint continuously exchanges heat with the hot air, and then the heat is brought into the paint under the action of flipping. First, there are dead angles during stirring, and second, the flow direction of the paint is parallel to the flow direction of the hot air, which is not conducive to rapid mixing and heating of the paint. Utility Model Content

[0005] The utility model aims to solve the problem that the drying device for paint production in the prior art is not conducive to rapid mixing and heating of paint, and proposes a drying device for exterior wall paint production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A drying device for producing exterior wall paint comprises a box body, a heating chamber is provided inside the box body, an electric heating tube is arranged at the bottom of the heating chamber, material delivery pipes are arranged on both sides of the heating chamber, the inlet of the material delivery pipe is located at the bottom of the heating chamber, and the outlet of the material delivery pipe is located at the top of the heating chamber, a liftable material turning mechanism is arranged inside the heating chamber, the edge of the material turning mechanism is in contact with the inner wall of the heating chamber, and a one-way valve structure is arranged on the material turning mechanism so that paint can only pass from top to bottom.

[0008] Furthermore, the material turning mechanism includes a piston rod, the top of the piston rod is connected to the working end of the drive unit, the bottom of the piston rod is connected to the top of the piston plate, the edge of the piston plate is in contact with the inner wall of the heating chamber, and a one-way valve structure for one-way passage of paint is provided on the piston plate.

[0009] Furthermore, the one-way valve structure includes a material turning hole penetrating the piston plate in the vertical direction, and a stopper that can float on the paint is arranged at the bottom of the material turning hole, and the stopper is installed on the piston plate in a liftable manner in the vertical direction.

[0010] Furthermore, a slide rod hole is provided on one side of the material turning hole, a slide rod is provided on the inner side of the slide rod hole, a blocking block is provided on the top of the slide rod, the bottom of the slide rod is connected to the top of the blocking block, and the blocking block is slidably installed in the slide rod hole along the vertical direction through the slide rod.

[0011] Furthermore, the stopper is a conical structure that is small at the top and large at the bottom, and a conical groove for accommodating the stopper is provided at the bottom of the slide rod hole.

[0012] Furthermore, the electric heating tube is embedded and installed in the bottom of the heating chamber, and the top of the electric heating tube is flush with the bottom of the heating chamber.

[0013] Furthermore, a feed port, an air inlet valve, and a pressure relief valve are provided on the top of the box body, and a discharge port is provided on the bottom of the box body. The feed port, air inlet valve, pressure relief valve, and discharge port are all connected to the heating chamber, and a valve is provided on the discharge port.

[0014] Compared with the prior art, the utility model provides a drying device for exterior wall paint production, which has the following beneficial effects:

[0015] The utility model discloses a drying device for producing exterior wall paint. When in use, paint is added into a heating chamber, and an electric heating tube and a turning mechanism are started. The electric heating tube heats the paint at the bottom first. During the heating process, the turning mechanism moves downward to squeeze the paint into a feed pipe and flows from the outlet of the feed pipe to the top of the turning mechanism. During this process, the heated paint at the bottom is continuously fed to the top of the turning mechanism until all the paint is fed to the top of the turning mechanism, and all the paint is heated once. Then, the turning mechanism is controlled to move upward, and the paint flows from the top of the turning mechanism to the bottom through a one-way valve structure to be repeatedly heated.

[0016] When the paint flows from the inlet of the feed pipe and then flows out from the outlet to the top of the turning mechanism, there is a mixing effect, and when it flows downward to the bottom of the heating chamber through the one-way valve structure, there is another mixing effect. Therefore, the turning mechanism can turn and mix the paint twice by lifting and lowering it once, and all the paint in the heating chamber is squeezed, turned and mixed, thereby realizing rapid mixing and heating.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional diagram of the box structure of the utility model;

[0020] Figure 3 This is a perspective schematic diagram of the material delivery pipe structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 A schematic diagram of the structure enlargement of part A;

[0022] Figure 5 This is a schematic diagram of the structure of the material turning mechanism of the utility model;

[0023] Figure 6 It is a three-dimensional schematic diagram of the cross-section structure of the material turning mechanism of the utility model;

[0024] Figure 7 For the utility model Figure 6 A schematic diagram of the structure of part B in the middle is enlarged;

[0025] Figure 8 This is a schematic diagram of the cross-sectional test of the material turning mechanism structure of the utility model;

[0026] Fig. 9 For the utility model Figure 8 Schematic diagram of the enlarged structure of part C in the middle.

[0027] In the figure:

[0028] 1. Box body; 101. Feed inlet; 102. Inlet valve; 103. Pressure relief valve; 104. Discharge port; 105. Feed pipe; 2. Drive unit; 3. Turning mechanism; 301. Piston rod; 302. Piston plate; 303. One-way valve structure; 30301. Block; 30302. Slide rod; 30303. Block; 30304. Slide rod hole; 30305. Conical groove; 30306. Turning hole; 4. Heating chamber; 5. Electric heating tube. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1-9 The utility model discloses a drying device for producing exterior wall paint, comprising a box body 1, a heating chamber 4 is provided inside the box body 1, an electric heating tube 5 is provided at the bottom of the heating chamber 4, a material delivery pipe 105 is provided on both sides of the heating chamber 4, the inlet of the material delivery pipe 105 is located at the bottom of the heating chamber 4, the outlet of the material delivery pipe 105 is located at the top of the heating chamber 4, a liftable material turning mechanism 3 is provided inside the heating chamber 4, the edge of the material turning mechanism 3 is in contact with the inner wall of the heating chamber 4, and a one-way valve structure 303 is provided on the material turning mechanism 3 so that the paint can only pass from top to bottom.

[0031] A feed port 101, an air inlet valve 102, and a pressure relief valve 103 are provided on the top of the box body 1, and a discharge port 104 is provided at the bottom of the box body 1. The feed port 101, the air inlet valve 102, the pressure relief valve 103, and the discharge port 104 are all connected to the heating chamber 4, and a valve is provided on the discharge port 104.

[0032] The initial position of the turning mechanism 3 is located below the outlet of the feed pipe 105 and above the heating chamber 4. When in use, the exterior wall paint to be processed is added into the heating chamber 4 through the feed inlet 101. The paint will first fall onto the turning mechanism 3 and then flow into the bottom of the heating chamber 4 through the one-way valve structure 303. After the feeding is completed, the electric heating tube 5 is started to heat the paint, and the turning mechanism 3 is started to descend, squeezing the paint to flow upward from the feed pipe 105, and turning the paint at the bottom of the heating chamber 4 to the upper part of the heating chamber 4.

[0033] Since the paint at the bottom of the heating chamber 4 is continuously heated and continuously fed into the upper part of the heating chamber 4, the paint originally far away from the electric heating tube 5 continuously descends close to the electric heating tube 5 for heating, and the cycle is repeated until the turning mechanism 3 presses all the paint into a position above itself. At the same time, all the paint is also heated once and mixed when it flows from the outlet of the feed pipe 105 to the top of the turning mechanism 3.

[0034] When the turning mechanism 3 rises from the bottom of the heating chamber 4, the paint mixed once flows to the bottom of the heating chamber 4 again through the one-way valve structure 303, and is mixed for the second time, and continues to be heated.

[0035] The mixing and heating are repeated in this way. When the water in the paint starts to evaporate, it is discharged through the pressure relief valve 103. After the paint is dried, the valve is opened, and air enters the heating chamber 4 from the air inlet valve 102, and the paint is discharged from the discharge port 104.

[0036] There are multiple material delivery pipes 105, which are arranged side by side on both sides of the heating chamber 4. When the paint flows out from the material delivery pipes 105 on both sides, they collide with each other and are mixed.

[0037] The turning mechanism 3 includes a piston rod 301, the top of the piston rod 301 is connected to the working end of the driving unit 2, the bottom of the piston rod 301 is connected to the top of the piston plate 302, the edge of the piston plate 302 is in contact with the inner wall of the heating chamber 4, and a one-way valve structure 303 for one-way passage of paint is provided on the piston plate 302.

[0038] The driving unit 2 can be a hydraulic cylinder, an electric cylinder or a motor connected to a crank mechanism. The driving unit 2 drives the piston plate 302 to perform lifting and reciprocating motion in the heating chamber 4 through the piston rod 301, and presses down the piston plate 302 to turn the paint.

[0039] The one-way valve structure 303 includes a material turning hole 30306 penetrating the piston plate 302 in the vertical direction. A stopper 30301 that can float on the paint is provided at the bottom of the material turning hole 30306. The stopper 30301 is installed on the piston plate 302 in a liftable manner in the vertical direction.

[0040] The stopper 30301 can be made of plastic or hollow metal. When the piston plate 302 drives the stopper 30301 to descend, the stopper 30301 will fit upward with the piston plate 302 to block the bottom end of the turning hole 30306. Then the piston plate 302 and the stopper 30301 press the paint downward together to press the paint into the feed pipe 105.

[0041] When the piston plate 302 rises, the rising speed of the piston plate 302 can be set to be greater than the rising speed of the paint liquid level. A certain distance is always maintained between the piston plate 302 and the paint liquid level below. Under the pressure of its own weight and the paint, the block 30301 moves away from the material turning hole 30306, and the paint flows from the top of the piston plate 302 to the bottom of the piston plate 302 through the material turning hole 30306.

[0042] A slide rod hole 30304 is provided on one side of the material turning hole 30306, a slide rod 30302 is provided on the inner side of the slide rod hole 30304, a clamping block 30303 is provided on the top of the slide rod 30302, the bottom of the slide rod 30302 is connected to the top of the stopper 30301, and the stopper 30301 is slidably installed in the slide rod hole 30304 along the vertical direction through the slide rod 30302.

[0043] In the same one-way valve structure 303, a plurality of material turning holes 30306 are distributed in the circumferential direction around a slide rod hole 30304. When the piston plate 302 descends, the block 30301 rises upward to block the material turning hole 30306. When the piston plate 302 rises, the block 30301 descends to open the material turning hole 30306, thereby achieving a one-way passage effect.

[0044] The stopper 30301 is a conical structure that is small at the top and large at the bottom. A conical groove 30305 for accommodating the stopper 30301 is provided at the bottom of the slide rod hole 30304.

[0045] The material turning hole 30306 is located above the conical structure. When the paint flows from the material turning hole 30306 onto the conical structure, it automatically spreads downward along the arc surface of the conical structure, and finally forms a hollow columnar structure. This structure is conducive to heat exchange between paints of different temperatures, making the paint heating more even.

[0046] The electric heating tube 5 is embedded and installed in the bottom of the heating chamber 4 , and the top of the electric heating tube 5 is flush with the bottom of the heating chamber 4 .

[0047] When the piston plate 302 drives the stopper 30301 to contact the bottom of the heating chamber 4, the stopper 30301 is received in the conical groove 30305, and the bottom of the stopper 30301 is flush with the bottom surface of the piston plate 302. The bottom surface of the piston plate 302 fits with the bottom surface of the heating chamber 4, making it easy to press all the paint into the feed pipe 105 and reduce dead angles.

[0048] Working principle: When in use, add the exterior wall paint into the heating chamber 4 through the feed port 101, the paint first falls on the piston plate 302, then flows from the turning hole 30306 to the bottom of the piston plate 302, and flows to the bottom of the heating chamber 4, and the electric heating tube 5 and the drive unit 2 are started. The electric heating tube 5 first heats the paint at the bottom. During the heating process, the piston plate 302 moves downward, and the block 30301 slides upward after receiving the reaction force of the paint, and is stored in the conical groove 30305, blocking the turning hole 30306. At this time, the piston plate 302 and the block 30301 squeeze the paint into the feed pipe 105 together, and the paint flows back from the outlet of the feed pipe 105 to the top of the piston plate 302;

[0049] When the piston plate 302 moves to the bottom of the heating chamber 4, the control driving unit 2 drives the piston plate 302 to start rising. At this time, the bottom of the stopper 30301 loses support and slides downward under the action of its own gravity and the pressure of the paint. The turning hole 30306 opens, and the paint flows onto the stopper 30301 through the turning hole 30306, and then continues to flow from the bottom edge of the stopper 30301 to the bottom of the heating chamber 4 in a hollow cylindrical shape.

[0050] During the heating process, the water vapor evaporated above the piston plate 302 is directly discharged from the pressure relief valve 103, and the water vapor evaporated below the piston plate 302 enters above the piston plate 302 through the material turning hole 30306 after the coating on the piston plate 302 flows out each time, and then continues to be discharged from the pressure relief valve 103;

[0051] The dried paint is discharged from the discharge port 104 by opening the valve.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A drying device for producing exterior wall paint, comprising a housing (1), wherein a heating chamber (4) is provided inside the housing (1), characterized in that: An electric heating tube (5) is arranged at the bottom of the heating chamber (4), and material delivery pipes (105) are arranged on both sides of the heating chamber (4), the inlet of the material delivery pipe (105) is located at the bottom of the heating chamber (4), and the outlet of the material delivery pipe (105) is located at the top of the heating chamber (4), and a liftable material turning mechanism (3) is arranged inside the heating chamber (4), the edge of the material turning mechanism (3) is in contact with the inner wall of the heating chamber (4), and the material turning mechanism (3) is provided with a one-way valve structure (303) through which paint can only pass from top to bottom.

2. A drying device for exterior wall paint production according to claim 1, characterized in that: The material turning mechanism (3) comprises a piston rod (301), the top of the piston rod (301) is connected to the working end of the drive unit (2), the bottom of the piston rod (301) is connected to the top of a piston plate (302), the edge of the piston plate (302) is in contact with the inner wall of the heating chamber (4), and a one-way valve structure (303) for one-way passage of paint is provided on the piston plate (302).

3. A drying device for exterior wall paint production according to claim 2, characterized in that: The one-way valve structure (303) comprises a material turning hole (30306) penetrating the piston plate (302) in the vertical direction, and a stopper (30301) capable of floating on the paint is arranged at the bottom of the material turning hole (30306), and the stopper (30301) is installed on the piston plate (302) in a manner that it can be lifted and lowered in the vertical direction.

4. A drying device for exterior wall paint production according to claim 3, characterized in that: A slide rod hole (30304) is provided on one side of the material turning hole (30306), a slide rod (30302) is provided on the inner side of the slide rod hole (30304), a clamping block (30303) is provided on the top of the slide rod (30302), the bottom of the slide rod (30302) is connected to the top of the stopper (30301), and the stopper (30301) is installed in the slide rod hole (30304) by sliding in a vertical direction through the slide rod (30302).

5. A drying device for exterior wall paint production according to claim 4, characterized in that: The stopper (30301) is a tapered structure that is smaller at the top and larger at the bottom, and a tapered groove (30305) for accommodating the stopper (30301) is provided at the bottom of the slide rod hole (30304).

6. A drying device for exterior wall paint production according to claim 5, characterized in that: The electric heating tube (5) is embedded and installed in the bottom of the heating chamber (4), and the top of the electric heating tube (5) is flush with the bottom of the heating chamber (4).

7. A drying device for producing exterior wall paint according to claim 1, characterized in that: The top of the box body (1) is provided with a feed port (101), an air intake valve (102), and a pressure relief valve (103); the bottom of the box body (1) is provided with a discharge port (104); the feed port (101), the air intake valve (102), the pressure relief valve (103), and the discharge port (104) are all in communication with the heating chamber (4); and a valve is provided on the discharge port (104).

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