CN222076915U - A powder pump for powder spraying - Google Patents
A powder pump for powder spraying Download PDFInfo
- Publication number
- CN222076915U CN222076915U CN202420517763.2U CN202420517763U CN222076915U CN 222076915 U CN222076915 U CN 222076915U CN 202420517763 U CN202420517763 U CN 202420517763U CN 222076915 U CN222076915 U CN 222076915U
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- powder
- gas
- pipe
- pump
- air
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- 239000000843 powder Substances 0.000 title claims abstract description 185
- 238000005507 spraying Methods 0.000 title claims abstract description 28
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 210000003298 dental enamel Anatomy 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
Landscapes
- Nozzles (AREA)
Abstract
The utility model provides a powder pump for powder spraying, which comprises a pump body, a powder inlet connecting pipe, a first gas pipe and a powder outlet pipe, wherein a mixing cavity is formed in the pump body, one end of the powder inlet connecting pipe extends into the pump body and is communicated with the mixing cavity, the other end of the powder inlet connecting pipe extends outwards relative to the pump body, the first gas pipe and the powder outlet pipe are respectively and detachably connected to two ends of the pump body and are communicated with the mixing cavity, a powder outlet channel communicated with the mixing cavity is formed in the powder outlet pipe, the first gas pipe can blow air into the mixing cavity and enable powder to move towards the direction of the powder outlet channel, and the powder pump provided by the utility model is convenient for later maintenance and maintenance work, saves the production cost of enterprises and further improves the overall service life of the pump body.
Description
Technical Field
The utility model relates to the technical field of powder electrostatic spraying, in particular to a powder pump for powder spraying.
Background
The powder spraying is to spray the powder paint onto the surface of the workpiece with the powder spraying equipment, and the powder will be adsorbed to the workpiece surface to form powder coating.
However, in the powder pump for enamel powder spraying in the prior art, because the hardness of enamel powder is relatively large, the powder outlet pipe of the air pump is easy to wear after long-term use, and the existing enamel powder spraying powder pump disclosed in the Chinese patent CN109395908A is provided on the market, as in the prior art, the powder outlet pipe and the air pump are arranged in an integrated manner, namely, the powder outlet pipe and the air pump are arranged in an inseparable manner, so that the powder can be worn to some different degrees along with the increase of the service time, and once the powder pipe is worn to cause the poor powder spraying effect, the problem cannot be solved by independently replacing the powder pipe, and finally, only the whole powder pump can be selected to be replaced, thereby causing the increase of the cost and unnecessary resource waste.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the powder pump which is used for powder spraying, has a simple structure and is more convenient to maintain and replace.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The powder pump for powder spraying comprises a pump body, a powder inlet connecting pipe, a first gas pipe and a powder outlet pipe, wherein a mixing cavity is formed in the pump body, one end of the powder inlet connecting pipe stretches into the pump body to be communicated with the mixing cavity, the other end of the powder inlet connecting pipe extends outwards relative to the pump body, the first gas pipe and the powder outlet pipe are detachably connected to two ends of the pump body respectively and are communicated with the mixing cavity, a powder outlet channel communicated with the mixing cavity is formed in the powder outlet pipe, and the first gas pipe can blow air into the mixing cavity and enable powder to move towards the direction of the powder outlet channel.
Preferably, the first gas pipe comprises a first gas connector and a gas nozzle, one end of the gas nozzle is connected with the first gas connector, the other end of the gas nozzle is connected with the mixing cavity, and the inner diameter of a gas outlet of the gas nozzle is smaller than the inner diameter of a gas inlet of the gas nozzle.
Preferably, the air nozzle, the mixing cavity and the powder outlet channel are arranged on the same axis.
Preferably, the powder mixing device further comprises an inner tube, wherein the inner tube is positioned between the mixing cavity and the powder outlet tube, two ends of the inner tube are respectively communicated with the mixing cavity and the powder outlet channel, at least part of the inner tube is positioned in the powder outlet tube, and the inner diameter of the inner tube is smaller than the inner diameter of the powder outlet channel.
Preferably, the inner tube and/or the powder outlet tube are/is made of ceramic materials.
Preferably, the powder pump comprises an inner tube and further comprises a sleeve, one end of the sleeve stretches into the mixing cavity and is connected with the pump body, the sleeve is sleeved outside the inner tube, a gap is reserved between the inner wall of the sleeve and the outer wall of the inner tube, and the gap is communicated with the powder outlet channel.
Preferably, the pump further comprises a second air pipe, the second air pipe is connected with the pump body and communicated with the sleeve, a plurality of through holes are further formed in the sleeve, the through holes are arranged around the sleeve, and the through holes are communicated with the gaps.
Preferably, the second gas pipe comprises a second gas connector and a flow limiting connector, one end of the flow limiting connector is connected with the second gas connector, the other end of the flow limiting connector is connected with the pump body, an air flow channel is arranged in the flow limiting connector and is communicated with the powder outlet channel through the through hole, and the inner diameter of an air inlet of the air flow channel is smaller than the inner diameter of an air outlet of the air flow channel.
Preferably, the first gas pipe comprises a first gas joint, filters are arranged in the first gas joint and the second gas joint, and the filters are respectively positioned between the gas inlets and the gas outlets of the first gas pipe and the second gas pipe.
Preferably, the powder outlet pipe is further provided with a connecting part at one end close to the powder outlet, and the connecting part is arranged on the outer side wall of the powder outlet pipe in a step shape.
The powder pump for powder spraying has the advantages that the powder outlet pipe, the first air pipe and the pump body are detachably arranged, if the powder outlet pipe or the first air pipe is damaged in the use process, the powder outlet pipe or the first air pipe can be detached from the pump body for maintenance or replacement, the service life of the pump body is further prolonged, the whole powder pump is prevented from being replaced when one part is damaged, and meanwhile, the parts, connected with the pump body, of the powder outlet pipe and the first air pipe are subjected to sealing treatment, so that the production cost of enterprises is saved, and the sealing performance of the pump body in the powder spraying process is ensured.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.
FIG. 1 is a schematic cross-sectional view of a powder pump according to the present utility model;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic diagram of an exploded construction of the powder pump of the present utility model;
FIG. 4 is a schematic view of the overall structure of the powder pump according to the present utility model;
FIG. 5 is a schematic view of the flow direction of the gas according to the present utility model;
In the figure, a pump body 1, a mixing cavity 10, a powder inlet connecting pipe 2, a first gas pipe 3, a first gas joint 30, an air tap 31, a powder outlet pipe 4, a powder outlet channel 40, a connecting part 41, an inner pipe 5, a sleeve 6, a gap 60, a through hole 61, a second gas pipe 7, a second gas joint 70, a flow limiting joint 71, a gas flow channel 710 and a filter 72 are arranged.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-5, the utility model provides a powder pump for powder spraying, which comprises a pump body 1, a powder inlet connecting pipe 2, a first gas pipe 3 and a powder outlet pipe 4, wherein a mixing cavity 10 is arranged in the pump body 1, one end of the powder inlet connecting pipe 2 extends into the pump body 1 to be communicated with the mixing cavity 10, the other end of the powder inlet connecting pipe extends outwards relative to the pump body 1, the first gas pipe 3 and the powder outlet pipe 4 are respectively and detachably connected (comprising detachable connection in a splicing mode, a threaded connection mode and the like) at two ends of the pump body 1, the first gas pipe 3 is communicated with the mixing cavity 10, a powder outlet channel 40 communicated with the mixing cavity 10 is arranged in the powder outlet pipe 4, and the first gas pipe 3 can blow air into the mixing cavity 10 and enable powder to move towards the direction of the powder outlet channel 40.
Referring to fig. 1 to 5, the powder pump for powder spraying provided by the present utility model has the specific working principle that:
Firstly, the first air pipe 3 is connected with an external air source (such as an air bottle or an air pump is used for conveying air to the first air pipe 3), the air is conveyed to the mixing cavity 10 in the pump body 1 through the first air pipe 3, in this embodiment, the first air pipe 3 adopts a one-way ventilation mode, so that the situation that powder flows backwards can be avoided, meanwhile, enamel powder is sucked into the mixing cavity 10 through the inlet of the powder inlet pipe 2 (the powder is sucked into the mixing cavity 10, the powder is understood to be mainly sprayed out through the powder outlet channel 40 along with the direction of the air flow after the air is introduced into the mixing cavity 10, negative pressure is formed at the powder outlet of the powder pipe along with the air sprayed out at a high speed, so that the powder is sucked into the mixing cavity 10), the powder and the air blown out at a high speed simultaneously blow off the powder, so that the air in the cavity is fully mixed with the powder, and the powder is blown out along with the direction of the air flow, and then sprayed out of the powder outlet channel 40, so that the surface of a workpiece is sprayed on the next step.
Compared with the existing powder pump, the powder pump has the advantages that the connection parts of the powder outlet pipe 4 and the first air conveying pipe 3 and the pump body 1 are detachable, in the use process, if the powder outlet pipe 4 or the first air conveying pipe 3 is damaged, the powder outlet pipe or the first air conveying pipe 3 can be detached from the pump body 1 for maintenance or replacement respectively, the service life of the pump body 1 is further prolonged, the whole powder pump is prevented from being replaced when one part is damaged, meanwhile, the parts, connected with the pump body 1, of the powder outlet pipe 4 and the first air conveying pipe 3 are subjected to sealing treatment, the production cost of enterprises is saved, and the sealing performance of the pump body 1 in the powder spraying process is guaranteed.
Referring to fig. 3, in a preferred embodiment, the first gas pipe 3 includes a first gas connector 30 and a gas nozzle 31, one end of the gas nozzle 31 is connected to the first gas connector 30, and the other end is connected to the mixing chamber 10, and an inner diameter of a gas outlet of the gas nozzle 31 is smaller than an inner diameter of a gas inlet thereof. The first gas connector 30 is communicated with the mixing cavity 10 through the gas nozzle 31, and gas flows through the first gas connector 30 and then flows into the mixing cavity 10 through the gas nozzle 31. Referring to fig. 1, the inner diameter of the air tap 31 is reduced from the air inlet to the air outlet, and the air is compressed by such a structure, so that the air can be ejected at a high speed.
Referring to fig. 1 and 5, in the preferred embodiment, the air tap 31, the mixing chamber 10 and the powder discharge passage 40 are coaxially arranged. Through the arrangement of the same axis, powder can be rapidly sprayed out along with the direction of airflow movement, meanwhile, powder accumulation is avoided, and the powder discharging effect is further ensured.
Referring to fig. 1-3, in the preferred embodiment, the powder discharging device further comprises an inner tube 5, wherein the inner tube 5 is positioned between the mixing cavity 10 and the powder discharging tube 4, two ends of the inner tube 5 are respectively communicated with the mixing cavity 10 and the powder discharging channel 40, at least part of the inner tube 5 is positioned in the powder discharging tube 4, and the inner diameter of the inner tube 5 is smaller than the inner diameter of the powder discharging channel 40. In this embodiment, the inner tube 5 is preferably a venturi tube in order to provide a rapid, long-distance transport of the powder in the fluidized state.
In a preferred embodiment, the inner tube 5 and/or the powder outlet tube 4 are both ceramic. Because the powder of carrying is enamel powder, hardness is great, consequently, adopts ceramic material can the pipeline wear resistance higher, and the powder also is difficult for bonding in inner tube 5 and play powder passageway 40 simultaneously, and is better to the conveying effect of powder, and it is also more even to spout the powder effect simultaneously.
Referring to fig. 1-3, in the preferred embodiment, the powder pump comprises an inner tube 5 and a sleeve 6, wherein one end of the sleeve 6 extends into the mixing cavity 10 and is connected with the pump body 1, the sleeve 6 is sleeved outside the inner tube 5, a gap 60 is arranged between the inner wall of the sleeve 6 and the outer wall of the inner tube 5, and the gap 60 is communicated with the powder outlet channel 40. Referring to fig. 5, after the gap 60 is communicated with the powder discharge channel 40, a second air flow channel 710 is formed, and air can be blown to the powder discharge channel 40 through the gap 60, so that the powder discharge efficiency is improved.
Referring to fig. 1-5, in a preferred embodiment, the pump further comprises a second air pipe 7, the second air pipe 7 is connected with the pump body 1 and communicated with the sleeve 6, a plurality of through holes 61 are arranged on the sleeve 6 at intervals, the plurality of through holes 61 are arranged around the sleeve 6, the flow direction of air flow can be more uniform through the surrounding arrangement, the plurality of through holes 61 are communicated with the gap 60, and in a further preferred embodiment, the second air pipe 7 is detachably connected with the pump body 1, and the function is also convenient for maintenance or replacement.
Referring to fig. 1 to 5, in the preferred embodiment, the second gas pipe 7 includes a second gas connector 70 and a flow-limiting connector 71, one end of the flow-limiting connector 71 is connected to the second gas connector 70, and the other end is connected to the pump body 1, an air flow passage 710 is provided inside the flow-limiting connector 71, the air flow passage 710 communicates with the powder discharge passage 40 through the through hole 61, and an air inlet inner diameter of the air flow passage 710 is smaller than an air outlet inner diameter thereof.
In this embodiment, the second air pipe 7 is added to increase kinetic energy in the powder conveying process, specifically, in the actual use process, since a certain distance is provided between the air tap 31 and the powder outlet channel 40, the powder may have a situation that the kinetic energy is attenuated when reaching the position of the powder outlet channel 40 along with the movement direction of the air flow, and the air can be blown (equivalent to the effect of air supplementing) in the direction of the powder outlet channel 40 through the second air pipe 7, so that the powder can be conveyed rapidly, the conveying distance is further longer, the powder spraying efficiency and effect are further improved, and the direction indicated by the arrow in the figure is the direction of the movement of the air flow with reference to fig. 5.
Referring to fig. 1 and 5, in the preferred embodiment, the first air delivery pipe 3 includes a first air connector 30, and filters 72 are disposed inside the first air connector 30 and the second air connector 70, and the filters 72 are located between the air inlet and the air outlet of the first air delivery pipe 3 and the second air delivery pipe 7, respectively. The filter 72 can filter out large particle impurities in the gas, so that the impurities are prevented from staying on the surface of a workpiece in the spraying process, the appearance of the product is affected, and the surface coating of the product is prevented from being damaged.
Referring to fig. 4, in the preferred embodiment, the powder discharge tube 4 is further provided with a connection portion 41 at one end near the powder outlet thereof, and the connection portion 41 is provided in a stepped shape on the outer side wall of the powder discharge tube 4. The connection 41 is primarily convenient for connection to a spray gun or other conduit.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. A powder pump for powder spraying is characterized by comprising a pump body, a powder inlet connecting pipe, a first air pipe and a powder outlet pipe, wherein a mixing cavity is formed in the pump body, one end of the powder inlet connecting pipe extends into the pump body to be communicated with the mixing cavity, the other end of the powder inlet connecting pipe extends outwards relative to the pump body, the first air pipe and the powder outlet pipe are respectively and detachably connected to two ends of the pump body, the first air pipe is communicated with the mixing cavity, a powder outlet channel communicated with the mixing cavity is formed in the powder outlet pipe, and the first air pipe can blow air into the mixing cavity and enable powder to move towards the direction of the powder outlet channel.
2. The powder pump for powder spraying according to claim 1, wherein the first gas pipe comprises a first gas connector and a gas tap, one end of the gas tap is connected with the first gas connector, the other end of the gas tap is connected with the mixing cavity, and an inner diameter of a gas outlet of the gas tap is smaller than an inner diameter of a gas inlet of the gas tap.
3. The powder pump for powder spraying according to claim 2, wherein the air tap, the mixing chamber and the powder outlet passage are coaxially arranged.
4. The powder pump for powder spraying according to claim 1, further comprising an inner tube, wherein the inner tube is located between the mixing chamber and the powder outlet tube, two ends of the inner tube are respectively communicated with the mixing chamber and the powder outlet channel, at least part of the inner tube is located in the powder outlet tube, and the inner diameter of the inner tube is smaller than the inner diameter of the powder outlet channel.
5. The powder pump for powder spraying according to claim 4, wherein the inner tube and/or the powder outlet tube are/is made of ceramic material.
6. The powder pump for powder spraying according to claim 1, further comprising a sleeve, wherein one end of the sleeve extends into the mixing chamber and is connected with the pump body, the sleeve is sleeved outside the inner tube, a gap is formed between the inner wall of the sleeve and the outer wall of the inner tube, and the gap is communicated with the powder outlet channel.
7. The powder pump for powder spraying according to claim 6, further comprising a second air pipe connected to the pump body and communicated to the sleeve, wherein a plurality of through holes are further provided in the sleeve at intervals, the plurality of through holes are provided around the sleeve, and the plurality of through holes are communicated with the gap.
8. The powder pump for powder spraying according to claim 7, wherein the second gas pipe includes a second gas joint and a flow-limiting joint, one end of the flow-limiting joint is connected with the second gas joint, the other end of the flow-limiting joint is connected with the pump body, an air flow passage is arranged in the flow-limiting joint, the air flow passage is communicated with the powder outlet passage through the through hole, and an inner diameter of an air inlet of the air flow passage is smaller than an inner diameter of an air outlet of the air flow passage.
9. The powder pump for powder spraying of claim 8, wherein the first gas pipe includes a first gas connector, and filters are disposed inside the first gas connector and the second gas connector, and the filters are located between the gas inlets and the gas outlets of the first gas pipe and the second gas pipe, respectively.
10. The powder pump for powder spraying according to claim 1, wherein the powder outlet pipe is further provided with a connecting portion at one end near the powder outlet thereof, and the connecting portion is provided in a stepped shape on an outer side wall of the powder outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420517763.2U CN222076915U (en) | 2024-03-15 | 2024-03-15 | A powder pump for powder spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420517763.2U CN222076915U (en) | 2024-03-15 | 2024-03-15 | A powder pump for powder spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222076915U true CN222076915U (en) | 2024-11-29 |
Family
ID=93596395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420517763.2U Active CN222076915U (en) | 2024-03-15 | 2024-03-15 | A powder pump for powder spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222076915U (en) |
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2024
- 2024-03-15 CN CN202420517763.2U patent/CN222076915U/en active Active
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