Powder coating filtering device

Abstract

The utility model relates to a powder coating filtering device which comprises an outer shell, a filtering device and a filtering device. The screening barrel is arranged between the first shell and the second shell; the stirring rod comprises a hollow rod, an auger sheet, a hollow supporting rod and a second threaded blind hole; the adjusting rod is arranged in the first shell; the top plug block and the lifting piece are arranged in the hollow supporting rod; the motor is in transmission connection with the stirring rod through a belt pulley and a transmission belt. Through the arrangement of the second shell, the stirring rod, the motor, the belt wheel, the transmission belt and other components, the stirring rod can be driven by the motor to rotate through the matching relation among the motor, the belt wheel and the transmission belt, and then powder materials can be conveyed into the screening barrel under the action of the auger piece; the whole stirring rod is driven to rotate, and air flow can be sprayed out in the stirring process by introducing air into the stirring rod.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating filtering and screening equipment, in particular to a powder coating filtering device. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. It is different from ordinary solvent-based coating and water-based coating. Its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation and low energy consumption.

[0003] Chinese patent CN219519575U discloses a powder coating filtering and screening device, which describes: "During the production process of powder coating, a drum-type screening device is required to screen the powder coating to obtain powder coating with uniform particles. During screening, the traditional drum-type screening device sets the rotating stirring component in close contact with the screen drum to ensure the screening effect. This setting generates a large impact force on the screen drum, which is easy to cause damage to the screen and the stirring component." The above patent adopts a rubber pad to solve the problem that the stirring component and the screen drum are easily damaged by the impact force due to close contact;

[0004] Although the above method can alleviate the damage caused by the impact force to a certain extent, it cannot completely avoid the damage caused by the impact force. Therefore, a powder coating filtering device is proposed to solve the above-mentioned problem. Utility Model Content

[0005] Based on the above description, the utility model provides a powder coating filtering device to solve the problem that the stirring component is easily damaged due to the too close contact between the stirring component and the sieve cylinder.

[0006] The utility model solves the above-mentioned technical problems through the following technical solutions: A powder coating filtering device, comprising: an outer shell, the outer shell comprising a first shell and a second shell, the first shell and the second shell being connected to each other by screws and nuts, a screening cylinder being arranged between the first shell and the second shell, a stirring rod being connected to the first shell and the second shell at the same time through a bearing, and comprising a hollow rod, a auger piece, a hollow support rod and a second threaded blind hole, an adjusting rod being arranged inside the first shell and extending to the inside of the hollow rod, and comprising a threaded column, a main rod and an annular protrusion, a top plug block and a lifting member being both arranged inside the hollow support rod, the top plug block comprising an air outlet, the lifting member comprising a partition and a blocking block, the blocking block extending to the inside of the air outlet, and a motor being connected to the stirring rod through a pulley and a transmission belt.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the first shell includes a first support plate, the first support plate is connected to the main shell via a transverse tube, a first threaded blind hole is provided at one end of the transverse tube, and the transverse tube is connected to the main shell.

[0009] Furthermore, the second shell includes a second support plate, a material delivery pipe is arranged inside the second support plate, a feed pipe is arranged at the top end of the material delivery pipe, and the feed pipe is communicated with the main shell through the material delivery pipe.

[0010] Furthermore, the screening drum comprises a perforated cylinder body, and a first positioning block and a second positioning block are respectively provided at two ends of the perforated cylinder body, and the perforated cylinder body is communicated with the feed pipe.

[0011] Furthermore, the hollow rod is connected to the first shell and the feed pipe via a bearing, an auger piece is arranged outside the hollow rod, and the auger piece is arranged inside the feed pipe.

[0012] Furthermore, a hollow support rod is arranged outside the hollow rod, the inner diameter of the hollow support rod away from one end of the hollow rod is larger than the inner diameter of the hollow support rod close to one end of the hollow rod, the hollow support rod is connected to the hollow rod, and a second threaded blind hole is arranged at one end of the hollow support rod.

[0013] Furthermore, the threaded column and the first threaded blind hole fit together, and a sealing rod, a main rod and an annular groove are sequentially provided at one end of the threaded column, an annular groove is provided on the outside of the sealing rod, a sealing ring is provided on the inside of the annular groove, an annular protrusion is provided on the outside of the main rod, a support column is provided at one end of the main rod, and an opening is provided on the outside of the support column.

[0014] Furthermore, the top plug block includes a top plate, a hollow threaded block is arranged at the bottom of the top plate, the hollow threaded block is threadedly connected to the second threaded blind hole, and an air outlet hole interconnected with the hollow threaded block is arranged at the top end of the top plate.

[0015] Furthermore, the lifting member includes a lifting rod, which is arranged inside the hollow support rod and contacts the annular protrusion.

[0016] Furthermore, a partition is provided on the outside of the lifting rod, an air vent is provided on the upper surface of the partition, a support spring is provided between the partition and the top plug block, and a blocking block is provided at the top end of the lifting rod, and the blocking block extends to the inside of the air outlet.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. The utility model is provided with a second housing, a stirring rod, a motor, a pulley, a transmission belt and other components. Through the cooperation between the motor, the pulley and the transmission belt, the stirring rod can be driven by the motor to rotate, so that the powder material entering from the feed pipe can be transported to the inside of the screening cylinder under the action of the auger piece, and the whole stirring rod is driven to rotate. By introducing air into the stirring rod, air flow can be ejected during the stirring process;

[0019] 2. By setting the adjusting rod, the top plug block and the lifting member and other components, the effect of controlling whether the airflow is ejected from the stirring rod is achieved. By rotating the adjusting rod, the adjusting rod is moved in the direction away from the second shell body, that is, after the annular protrusion is separated from the lifting rod, the lifting rod moves downward under the action of the downward elastic force of the supporting spring. At this time, the blocking block is separated from the air outlet, and the airflow can be discharged from the air outlet, so that the airflow can move with the stirring rod to push the powder material out of the screening cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a powder coating filtering device provided by an embodiment of the utility model;

[0021] Figure 2 for Figure 1 Structural cross-sectional view of

[0022] Figure 3 for Figure 2 A structural diagram from another perspective;

[0023] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area;

[0024] Figure 5 This is a schematic diagram of the structure of the first housing in the embodiment of the utility model;

[0025] Figure 6 for Figure 5 A structural diagram from another perspective;

[0026] Figure 7 This is a schematic diagram of the structure of the screening cylinder in the embodiment of the utility model;

[0027] Figure 8 for Figure 7 A structural diagram from another perspective;

[0028] Fig. 9 This is a schematic diagram of the structure of the stirring rod in the embodiment of the utility model;

[0029] Fig.10 This is a schematic diagram of the structure of the adjustment rod in the embodiment of the utility model;

[0030] Fig.11 This is a schematic diagram of the structure of the top plug block in the embodiment of the utility model;

[0031] Fig.12 This is a schematic diagram of the structure of the lifting member in the embodiment of the utility model;

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. First shell; 111. First support plate; 112. Main shell; 113. Horizontal tube; 114. First threaded blind hole; 2. Second shell; 21. Second support plate; 22. Feed pipe; 23. Feed pipe; 3. Screening cylinder; 31. Perforated cylinder; 32. First positioning block; 33. Second positioning block; 4. Stirring rod; 41. Hollow rod; 42. Auger piece; 43. Hollow support rod; 44. Second threaded blind hole; 5. , adjusting rod; 51, threaded column; 52, sealing rod; 53, annular groove; 54, main rod; 55, annular protrusion; 56, supporting column; 57, opening; 6, top plug block; 61, top plate; 62, hollow threaded block; 63, air vent; 7, pulley; 8, transmission belt; 9, motor; 10, lifting member; 101, lifting rod; 102, partition; 103, vent; 104, blocking block; 11, supporting spring. DETAILED DESCRIPTION

[0034] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0037] See also Figure 1 , Figure 3 , Figure 5-Figure 8 , a powder coating filtering device, comprising:

[0038] The housing comprises a first shell 1 and a second shell 2, wherein the first shell 1 and the second shell 2 are connected to each other by screws and nuts, the first shell 1 comprises a first support plate 111, the first support plate 111 is connected to a main shell 112 by a transverse tube 113, one end of the transverse tube 113 is provided with a first threaded blind hole 114, the transverse tube 113 is communicated with the main shell 112, the second shell 2 comprises a second support plate 21, a material delivery pipe 22 is provided inside the second support plate 21, a material delivery pipe 23 is provided at the top end of the material delivery pipe 22, and the feed pipe 23 is communicated with the main shell 112 by the material delivery pipe 22;

[0039] A screening drum 3 is arranged between the first shell 1 and the second shell 2, and comprises a perforated cylinder 31, two ends of which are provided with a first positioning block 32 and a second positioning block 33, respectively, and the perforated cylinder 31 is communicated with the feed pipe 22;

[0040] Based on the above, the first shell 1 and the second shell 2 are connected to each other by screws and nuts, and the screening drum 3 is fixed between the first shell 1 and the second shell 2, wherein the first positioning block 32 and the second positioning block 33 respectively cooperate with the first shell 1 and the second shell 2 to play a fixing role, so that the position of the screening drum 3 is fixed, and the setting of the cross tube 113 and the first threaded blind hole 114 enables the adjusting rod 5 to pass through the cross tube 113 and extend into the interior of the stirring rod 4.

[0041] like Figure 2 , Figure 3 as well as Fig. 9 As shown, the stirring rod 4 is connected to the first shell 1 and the second shell 2 through a bearing, and includes a hollow rod 41, an auger piece 42, a hollow support rod 43 and a second threaded blind hole 44. The hollow rod 41 is connected to the first shell 1 and the feeding pipe 22 through a bearing, and the auger piece 42 is arranged on the outside of the hollow rod 41, and the auger piece 42 is arranged inside the feeding pipe 22. The hollow rod 41 is provided with a hollow support rod 43 on the outside, and the inner diameter of the hollow support rod 43 away from the end of the hollow rod 41 is larger than the inner diameter of the end close to the hollow rod 41. The hollow support rod 43 is connected to the hollow rod 41, and one end of the hollow support rod 43 is provided with a second threaded blind hole 44;

[0042] Based on the above, the setting of the hollow rod 41 allows air to pass into the interior of the stirring rod 4, and the auger piece 42 allows the powder coating material entering the interior of the delivery pipe 22 from the feed pipe 23 to be transported toward the screening cylinder 3, and the setting of the hollow support rod 43 allows the airflow to be discharged, and the second threaded blind hole 44 allows the top plug block 6 to be interconnected with the hollow support rod 43.

[0043] like Figure 2 , Figure 3 as well as Fig.10 As shown, the adjusting rod 5 is arranged inside the first housing 1 and extends to the inside of the hollow rod 41, and includes a threaded column 51, a main rod 54 and an annular protrusion 55. The threaded column 51 fits with the first threaded blind hole 114. One end of the threaded column 51 is sequentially provided with a sealing rod 52, a main rod 54 and an annular groove 53. The outside of the sealing rod 52 is provided with an annular groove 53, and the inside of the annular groove 53 is provided with a sealing ring. The outside of the main rod 54 is provided with an annular protrusion 55. One end of the main rod 54 is provided with a supporting column 56, and the outside of the supporting column 56 is provided with an opening 57.

[0044] Based on the above, the adjusting rod 5 cooperates with the first threaded blind hole 114 so that the adjusting rod 5 can move along the direction of the hollow rod 41 when it rotates. After the adjusting rod 5 moves, the position of the annular protrusion 55 changes, thereby playing a role in lifting the lifting rod 10. The annular groove 53 and the sealing ring cooperate with each other to play a sealing role, thereby preventing the airflow from being discharged from one end of the hollow rod 41 close to the threaded column 51, and the setting of the support column 56 plays a role in providing supporting force, so that the main rod 54 can support sufficient pressure, and the opening 57 allows the airflow to flow normally.

[0045] like Figure 3 , Figure 4 , Fig.11 and Fig.12 As shown, the top plug block 6 and the lifting member 10 are both arranged inside the hollow support rod 43, and a support spring 11 is arranged between the two. The top plug block 6 includes an air outlet 63, and the lifting member 10 includes a partition 102 and a blocking block 104, wherein:

[0046] The top plug block 6 includes a top plate 61, a hollow thread block 62 is provided at the bottom of the top plate 61, the hollow thread block 62 is threadedly connected to the second threaded blind hole 44, and an air outlet 63 is provided at the top of the top plate 61 and is interconnected with the hollow thread block 62;

[0047] A partition 102 is disposed outside the lifting rod 101, and a vent hole 103 is disposed on the upper surface of the partition 102. A support spring 11 is disposed between the partition 102 and the top plug block 6. A blocking block 104 is disposed at the top end of the lifting rod 101, and the blocking block 104 extends to the inside of the air outlet hole 63.

[0048] A block 104 extending to the inside of the air outlet 63;

[0049] A motor 9, which is connected to the stirring rod 4 through a pulley 7 and a transmission belt 8;

[0050] Based on the above, the top plug block 6 and the second threaded blind hole 44 cooperate with each other to compress the support spring 11 and restrict the lifting rod 101 to the inside of the hollow support rod 43. When the adjusting rod 5 moves, the lifting rod 101 loses the support at the bottom. At this time, the lifting rod 101 moves in the direction away from the top plug block 6 under the action of the elastic force of the support spring 11, thereby separating the block 104 from the air outlet 63. At this time, the air can be discharged from the air outlet 63. On the contrary, when the lifting rod 101 is lifted by the annular protrusion 55, the block 104 blocks the air outlet 63 to prevent the powder coating from entering the inside of the stirring rod 4, and the motor 9, the pulley 7 and the transmission belt 8 play a role in driving the stirring rod 4 to move.

[0051] In actual use of this embodiment, air flow is introduced from the stirring rod 4 so that the air flow enters the interior of the stirring rod 4. By rotating the adjusting rod 5, the adjusting rod 5 drives the annular protrusion 55 to move horizontally and then separate from the lifting rod 101. At this time, the lifting rod 101 moves in a direction away from the top plug 6 under the action of the elastic force of the supporting spring 11. In this process, the blocking block 104 is separated from the air outlet 63, so that the air flow can be ejected from the air outlet 63.

[0052] When the airflow is ejected, it will impact the powder material inside the screening drum 3, providing external force to discharge the powder material from the sieve holes on the surface of the screening drum 3. At the same time, the motor 9 is energized to drive the hinged rod 4 to rotate through the pulley 7 and the transmission belt 8. On the one hand, when the auger piece 42 on the surface of the stirring rod 4 rotates, the powder coating introduced from the feed pipe 23 to the inside of the feed pipe 22 can be transported toward the screening drum 3, and the powder coating enters the inside of the screening drum 3, that is, the feeding process. On the other hand, when the stirring rod 4 rotates, it can also play a stirring role, so that the force on the powder coating is more uniform.

[0053] Compared with the method in the comparative patent, the filtering device uses airflow to provide impact force instead of the force applied to the powder coating by the stirring component, so that the distance between the stirring component and the screening cylinder 3 is increased, avoiding the situation where both the stirring component and the inner wall of the screening cylinder 3 are damaged due to too close contact between the stirring component and the inner wall of the screening cylinder 3.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 powder coating filtering device, characterized in that: include: A housing comprising a first housing (1) and a second housing (2), wherein the first housing (1) and the second housing (2) are connected to each other via screws and nuts; A screening cylinder (3) disposed between the first shell (1) and the second shell (2); A stirring rod (4), which is connected to the first shell (1) and the second shell (2) via a bearing, and comprises a hollow rod (41), a auger piece (42), a hollow support rod (43) and a second threaded blind hole (44); An adjusting rod (5), which is arranged inside the first housing (1) and extends into the interior of the hollow rod (41), and comprises a threaded column (51), a main rod (54) and an annular protrusion (55); The top plug block (6) and the lifting member (10) are both arranged inside the hollow support rod (43), and a supporting spring (11) is arranged between the two. The top plug block (6) includes an air outlet hole (63), and the lifting member (10) includes a partition plate (102) and a blocking block (104), wherein: A blocking block (104) extending to the interior of the air outlet hole (63); The motor (9) is connected to the stirring rod (4) through a pulley (7) and a transmission belt (8).

2. The powder coating filter device according to claim 1, characterized in that: The first shell (1) comprises a first support plate (111), the first support plate (111) being connected to the main shell (112) via a transverse tube (113), one end of the transverse tube (113) being provided with a first threaded blind hole (114), and the transverse tube (113) and the main shell (112) being in communication with each other.

3. The powder coating filtering device according to claim 2, characterized in that: The second shell (2) comprises a second support plate (21), a material delivery pipe (22) is arranged inside the second support plate (21), a material feed pipe (23) is arranged at the top end of the material delivery pipe (22), and the material feed pipe (23) is connected to the main shell (112) through the material delivery pipe (22).

4. The powder coating filter device according to claim 3, characterized in that: The screening drum (3) comprises a perforated drum (31), with a first positioning block (32) and a second positioning block (33) respectively provided at both ends of the perforated drum (31), and the perforated drum (31) is communicated with the feed pipe (22).

5. The powder coating filter device according to claim 3, characterized in that: The hollow rod (41) is connected to the first shell (1) and the feed pipe (22) via a bearing, and an auger piece (42) is arranged outside the hollow rod (41), and the auger piece (42) is arranged inside the feed pipe (22).

6. The powder coating filter device according to claim 5, characterized in that: A hollow support rod (43) is arranged outside the hollow rod (41); the inner diameter of the end of the hollow support rod (43) away from the hollow rod (41) is larger than the inner diameter of the end of the hollow support rod (43) close to the hollow rod (41); the hollow support rod (43) is connected to the hollow rod (41); and a second threaded blind hole (44) is arranged at one end of the hollow support rod (43).

7. The powder coating filtering device according to claim 6, characterized in that: The threaded column (51) and the first threaded blind hole (114) are fitted with each other, and a sealing rod (52), a main rod (54) and an annular groove (53) are sequentially arranged at one end of the threaded column (51); an annular groove (53) is arranged outside the sealing rod (52), a sealing ring is arranged inside the annular groove (53), an annular protrusion (55) is arranged outside the main rod (54), and a supporting column (56) is arranged at one end of the main rod (54), and an opening (57) is arranged outside the supporting column (56).

8. The powder coating filtering device according to claim 7, characterized in that: The top plug block (6) comprises a top plate (61), a hollow threaded block (62) is arranged at the bottom of the top plate (61), the hollow threaded block (62) is threadedly connected to the second threaded blind hole (44), and an air outlet hole (63) is arranged at the top end of the top plate (61) and is interconnected with the hollow threaded block (62).

9. The powder coating filter device according to claim 8, characterized in that: The lifting member (10) comprises a lifting rod (101), wherein the lifting rod (101) is arranged inside the hollow support rod (43) and is in contact with the annular protrusion (55).

10. The powder coating filter device according to claim 9, characterized in that: A partition (102) is arranged outside the lifting rod (101), and a vent hole (103) is arranged on the upper surface of the partition (102). A support spring (11) is arranged between the partition (102) and the top plug block (6). A blocking block (104) is arranged at the top end of the lifting rod (101), and the blocking block (104) extends to the inside of the air outlet hole (63).

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