Powder feeding device for viscous powder

Abstract

The utility model relates to the technical field of spraying equipment, in particular to a powder feeding device for viscous powder, which comprises a hopper, a top cover, a base assembly and a powder feeding device, a pneumatic vibrator is arranged on the outer wall of the hopper, a first air inlet valve is arranged on the pneumatic vibrator, the top cover is detachably connected to the top of the hopper, the base assembly is detachably connected to the bottom of the hopper, and a second air inlet valve is arranged on the base assembly. A feeding cavity communicated with the hopper is formed in the base assembly, a spiral powder guiding structure is arranged on the inner wall of the feeding cavity, a second air inlet valve and a powder feeding valve are arranged on one side of the base assembly, the base is fixedly arranged at the bottom of the base assembly, a nitrogen inlet and an air inlet pipeline are arranged on the base, and a nitrogen outlet is formed in the other side of the base assembly. The hopper is arranged at the top of the top cover, viscous powder is not prone to agglomerate by means of causing turbulence inside the hopper and loading a pneumatic vibrator, and meanwhile, a powder guiding structure is loaded at the bottom of the hopper, so that efficient powder feeding of the viscous powder prone to agglomerate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to a powder feeding device for viscous powder. Background Art

[0002] Currently, the most common powder feeders used in the spray coating industry are gravity-type and scraper-type powder feeders. When conveying sticky powders, these two types of feeders often experience blockage of the feed port due to powder agglomeration, resulting in low sticky powder conveying efficiency and even making sticky powders unusable in the spray coating industry.

[0003] Since sticky powders tend to agglomerate, they often stick to the powder feeder, blocking the hopper and powder feeding pipe, thus limiting the widespread application of sticky powders in the spraying field. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a powder feeding device for viscous powder to solve the problems raised in the above background technology.

[0005] Based on the above purpose, the utility model provides a powder feeding device for viscous powder, comprising:

[0006] A hopper, an outer wall of which is provided with a pneumatic vibrator, and the pneumatic vibrator is provided with a first air inlet valve;

[0007] a top cover, detachably connected and arranged on the top of the hopper;

[0008] A base assembly is detachably connected to the bottom of the hopper, a feed chamber connected to the hopper is provided inside the base assembly, a spiral powder guide structure is provided on the inner wall of the feed chamber, a second air inlet valve and a powder feeding valve are provided on one side of the base assembly, one end of the powder feeding valve is connected to one end of the powder guide structure near the bottom of the base assembly, and one end of the second air inlet valve is connected to one end of the powder guide structure at the top of the base assembly;

[0009] a base fixedly mounted on the bottom of the base assembly, wherein a nitrogen inlet is provided on the base, wherein one end of the nitrogen inlet is respectively connected to one end of the first inlet valve and one end of the second inlet valve away from the base assembly;

[0010] An air intake pipeline is arranged on the top of the top cover, and one end of the air intake pipeline passes through the top cover and is connected to the hopper.

[0011] Preferably, the air intake pipeline is connected to a flow meter, a pressure regulating valve and a pressure relief valve.

[0012] Preferably, a sealing ring is provided between the top cover and the hopper to prevent air leakage.

[0013] Preferably, a pressure gauge for detecting the internal pressure is installed on the outer wall of the hopper.

[0014] Preferably, a micro switch is installed on the outer wall of the hopper.

[0015] Preferably, a communication connector is provided at the bottom of the base, and the communication connector is installed on the nitrogen inlet.

[0016] Preferably, the base assembly and the powder guide structure are both made of transparent polymer materials.

[0017] The beneficial effects of this utility model include: nitrogen gas introduced into the top of the hopper creates a pressure differential inside the hopper, enabling stable powder feeding. A gas vibrator is installed in the middle of the hopper to evenly disperse easily agglomerated powders, creating a turbulent atmosphere. Simultaneously, at the bottom of the hopper, the carrier gas transports the powder along a spiral powder guide structure to the powder feed pipe, achieving efficient powder feeding for sticky, easily agglomerated powders. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the base assembly of an embodiment of the utility model.

[0021] The following are marked in the figure:

[0022] 01. Hopper; 02. Pneumatic vibrator; 03. Flow meter; 04. Pressure regulating valve; 05. Pressure relief valve; 06. Top cover; 07. Sealing ring; 08. Micro switch; 09. Pressure gauge; 10. First air inlet valve; 11. Base assembly; 12. Nitrogen inlet port; 13. Communication connector; 14. Base; 15. Second air inlet valve; 16. Powder feeding valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0025] like Figure 1 and Figure 2 As shown, a powder feeding device for viscous powder includes:

[0026] The hopper 01 has a pneumatic vibrator 02 mounted on its outer wall, and the pneumatic vibrator 02 is provided with a first air inlet valve 10;

[0027] A top cover 06 is detachably connected to the top of the hopper 01;

[0028] A base assembly 11 is detachably connected to the bottom of the hopper 01. A feed chamber connected to the hopper 01 is provided inside the base assembly 11. A spiral powder guide structure is provided on the inner wall of the feed chamber. A second air inlet valve 15 and a powder feeding valve 16 are provided on one side of the base assembly 11. One end of the powder feeding valve 16 is connected to an end of the powder guide structure near the bottom of the base assembly 11. One end of the second air inlet valve 15 is connected to an end of the powder guide structure at the top of the base assembly 11.

[0029] A base 14 is fixed to the bottom of the base assembly 11. A nitrogen inlet 12 is provided on the base 14. One end of the nitrogen inlet 12 is respectively connected to one end of the first inlet valve 10 and one end of the second inlet valve 15 away from the base assembly 11;

[0030] An air intake pipeline is provided on the top of the top cover 06 , and one end of the air intake pipeline passes through the top cover 06 and is in communication with the hopper 01 .

[0031] For example, nitrogen is introduced into hopper 01 through an air inlet line, creating a pressure differential within hopper 01 to achieve stable powder delivery. A gas vibrator is installed in the middle of hopper 01, which oscillates under the power of the gas. This prevents sticky powder from adhering to the inner walls of hopper 01 and evenly disperses easily agglomerated powder, creating a turbulent atmosphere. Simultaneously, at the bottom of hopper 01, a carrier gas flows along a spiral powder guide structure to transport powder to the powder delivery tube, achieving efficient powder delivery for sticky, easily agglomerated powder. This device effectively disperses easily agglomerated sticky powder, preventing powder agglomeration from clogging the powder delivery tube, thereby improving powder delivery efficiency and powder utilization.

[0032] As an optional embodiment, a flow meter 03, a pressure regulating valve 04 and a pressure relief valve 05 are connected to the air intake pipeline.

[0033] As an optional embodiment, a sealing ring 07 is provided between the top cover 06 and the hopper 01 to prevent air leakage.

[0034] As an optional embodiment, a pressure gauge 09 for detecting the internal pressure is installed on the outer wall of the hopper 01.

[0035] As an optional embodiment, a micro switch 08 is installed on the outer wall of the hopper 01.

[0036] As an optional embodiment, a communication connector 13 is provided at the bottom of the base 14 , and the communication connector 13 is installed on the nitrogen inlet 12 .

[0037] As an optional embodiment, the base assembly 11 and the powder guide structure are both made of transparent polymer materials.

[0038] For example, the advantage of using a transparent polymer material as the base assembly 11 and the powder guide structure is that the state of the internal powder can be observed.

[0039] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist for the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A powder feeding device for viscous powder, characterized in that: include: A hopper (01) has a pneumatic vibrator (02) mounted on its outer wall, and a first air inlet valve (10) is mounted on the pneumatic vibrator (02); A top cover (06) is detachably connected and arranged on the top of the hopper (01); A base assembly (11) is detachably connected and arranged at the bottom of the hopper (01); a feed chamber connected to the hopper (01) is provided inside the base assembly (11); a spiral powder guide structure is provided on the inner wall of the feed chamber; a second air inlet valve (15) and a powder feeding valve (16) are provided on one side of the base assembly (11); one end of the powder feeding valve (16) is connected to one end of the powder guide structure near the bottom of the base assembly (11); and one end of the second air inlet valve (15) is connected to one end of the powder guide structure at the top of the base assembly (11); A base (14) is fixedly mounted on the bottom of the base assembly (11), and a nitrogen inlet (12) is provided on the base (14), one end of the nitrogen inlet (12) is respectively connected to one end of the first inlet valve (10) and one end of the second inlet valve (15) away from the base assembly (11); An air intake pipeline is arranged on the top of the top cover (06), and one end of the air intake pipeline passes through the top cover (06) and is connected to the hopper (01).

2. A powder feeding device for viscous powder according to claim 1, characterized in that: The air intake pipeline is connected with a flow meter (03), a pressure regulating valve (04) and a pressure relief valve (05).

3. The powder feeding device for viscous powder according to claim 1, characterized in that: A sealing ring (07) is provided between the top cover (06) and the hopper (01) to prevent air leakage.

4. The powder feeding device for viscous powder according to claim 1, characterized in that: A pressure gauge (09) for detecting the internal pressure is installed on the outer wall of the hopper (01).

5. The powder feeding device for viscous powder according to claim 1, characterized in that: A micro switch (08) is installed on the outer wall of the hopper (01).

6. The powder feeding device for viscous powder according to claim 1, characterized in that: A communication connector (13) is provided at the bottom of the base (14), and the communication connector (13) is mounted on the nitrogen inlet (12).

7. The powder feeding device for viscous powder according to claim 1, characterized in that: The base assembly (11) and the powder guide structure are both made of transparent polymer materials.

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