CN215964534U - Pipeline module, feedway and roller coating equipment - Google Patents

Abstract

The utility model relates to a pipeline module, a feeding device and a roller coating device, which comprise: the first pipeline unit comprises a first return pipeline, a first discharge control valve and a first return control valve, the first return control valve is connected in the first return pipeline, the first discharge pipeline is connected in the first return pipeline, and the first discharge control valve is connected in the first discharge pipeline; and the second pipeline unit comprises a second return pipeline, a second discharge control valve and a second return control valve, the second return control valve is connected in the second return pipeline, the second discharge pipeline is connected in the second return pipeline, and the second discharge control valve is connected in the second discharge pipeline. Can form the coating inner loop in the feedway, the coating just can flow into first discharge pipeline and second discharge pipeline rapidly from first return line and second return line, guarantees the promptness of the ejection of compact, promotes feed efficiency.

Description

Pipeline module, feedway and roller coating equipment

Technical Field

The utility model relates to the technical field of building construction equipment, in particular to a pipeline module, a feeding device and roll coating equipment.

Background

In recent years, with the annual rise of labor cost and the continuous improvement of technology level, various automatic devices are increasingly applied to various industries of production and life of people. For example, in the building industry, an indoor roller coating process is widely applied to the building process, and roller coating equipment can replace the traditional manual operation mode to automatically finish roller coating construction on the indoor wall surface of a building, so that the effects of quality improvement, efficiency improvement and cost reduction are achieved.

At present, when the roller coating equipment works, the power equipment is used for conveying the coating in the charging barrel to the front end executing mechanism, so that the front end executing mechanism can uniformly coat the coating on the wall surface. When the roller coating efficiency needs to be improved, more material conveying pipelines need to be equipped, for example, a power device is connected with two material conveying pipelines, and the coating is conveyed to two front-end execution mechanisms which are correspondingly connected through the two material conveying pipelines, so that the two front-end execution mechanisms can be subjected to roller coating processing simultaneously. However, the flow of the coating output by different material conveying pipelines is not uniform, and the rolling coating quality is further influenced; in addition, when the roller coating equipment is stopped for a period of time and works again, the coating flowing out of the charging barrel can be conveyed to the front end execution mechanism only after flowing in the empty conveying pipeline for a period of time, and the problems of untimely discharging, high hysteresis and influence on the whole construction efficiency of roller coating exist.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a pipeline module, feedway and roller coating equipment, aim at solving prior art ejection of compact inhomogeneous, the ejection of compact is not in time, influences the problem of roller coating construction quality and efficiency of construction.

In one aspect, the present application provides a pipeline module, the pipeline module includes:

the first pipeline unit comprises a first return pipeline, a first discharge control valve and a first return control valve, the first return pipeline is used for being connected with a corresponding first pumping mechanism, the first return control valve is connected into the first return pipeline, the first discharge pipeline is connected into the first return pipeline, and the first discharge control valve is connected into the first discharge pipeline; and

the second pipeline unit comprises a second return pipeline, a second discharge control valve and a second return control valve, the second return pipeline is used for being connected with a corresponding second pumping mechanism, the second return control valve is connected to the second return pipeline, the second discharge pipeline is connected to the second return pipeline, and the second discharge control valve is connected to the second discharge pipeline.

The pipeline module is applied to roll coating equipment and particularly used as a component unit of a feeding device to convey coating to a tail end roll coating executing mechanism. The feeding device further comprises a storage container, a first pumping mechanism and a second pumping mechanism, the first pumping mechanism and the second pumping mechanism are respectively connected with the storage container before use, then one end of the first return pipeline is connected with the first pumping mechanism, the other end of the first return pipeline is connected with the storage container, one end of the second return pipeline is connected with the second pumping mechanism, and the other end of the second return pipeline is connected with the storage container. When the coating needs to be supplied to the tail end roller coating executing mechanism, the first backflow control valve and the second backflow control valve are closed, the first discharging control valve and the second discharging control valve are opened at the same time, the first pumping mechanism and the second pumping mechanism can convey the coating in the storage container to the first discharging pipeline and the second discharging pipeline, and therefore the coating is supplied to the tail end roller coating executing mechanism for roller coating construction. When the roll coating operation is suspended or ended, and the work place is changed, the first discharge control valve and the second discharge control valve are closed, the first backflow control valve and the second backflow control valve are opened, the first pumping mechanism and the second pumping mechanism are kept in a working state, at the moment, the paint in the storage container can continuously flow in the first backflow pipeline and the second backflow pipeline under the driving of the first pumping mechanism and the second pumping mechanism and finally flows back into the storage container, namely, the internal circulation of the paint can be formed in the feeding device, therefore, when the feeding operation needs to be carried out again, the paint can quickly flow into the first discharge pipeline and the second discharge pipeline from the first backflow pipeline and the second backflow pipeline only by closing the first backflow control valve and the second backflow control valve and re-opening the first discharge control valve and the second discharge control valve, the timeliness of discharging is ensured, and the feeding efficiency is improved; and the internal circulation mode can also avoid the phenomenon of solidification or segregation layering caused by standing of the coating in pipelines and storage containers, thereby ensuring the coating quality and the roller coating quality.

The technical solution of the present application is further described below:

in one embodiment, the first return line comprises a first feeding end and a first discharging end, the second return line comprises a second feeding end and a second discharging end, the first feeding end and the first discharging end have a first connecting line therebetween, the second feeding end and the second discharging end have a second connecting line therebetween, and the first connecting line and the second connecting line intersect with each other.

In one embodiment, the pipeline module further comprises a flow meter connected to the first return line and the second return line.

In one embodiment, the line module further comprises a line filter connected to the first return line and the second return line.

In one embodiment, the line module further comprises a line pressure sensor connected to the first return line and the second return line.

In one embodiment, the line module further comprises a liquid level sensor connected to the first return line and the second return line.

In one embodiment, the pipeline module further comprises a first steering elbow and a second steering elbow, one end of the first steering elbow is connected with the first return pipeline, the other end of the first steering elbow is used for being connected with the first pumping mechanism, one end of the second steering elbow is connected with the second return pipeline, and the other end of the second steering elbow is used for being connected with the second pumping mechanism.

In one embodiment, the pipeline module further comprises a first return auxiliary pipe and a second return auxiliary pipe, one end of the first return auxiliary pipe is connected with one end of the first discharging pipeline far away from the first return pipeline, and the other end of the first return auxiliary pipe is connected with the first return pipeline; one end of the second backflow auxiliary pipe is connected with one end, far away from the second backflow pipeline, of the second discharging pipeline, and the other end of the second backflow auxiliary pipe is connected with the second backflow pipeline.

In another aspect, the present application further provides a feeding device, which includes the pipeline module as described above.

Furthermore, the application also provides a roller coating device which comprises the feeding device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a feeding device according to an embodiment of the present invention;

FIG. 2 is a structural reduction view of the right-view perspective of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

fig. 4 is a schematic structural diagram of a feeding device according to another embodiment of the present invention.

Description of reference numerals:

100. a feeding device; 10. a storage container; 11. a first feed back port; 12. a second feed back port; 13. a first discharge port; 14. a second discharge opening; 10a, a power mechanism; 20. a first pumping mechanism; 30. a second pumping mechanism; 40. a first piping unit; 41. a first return line; 411. a first discharge end; 412. a first feed end; 42. a first discharge line; 43. a first discharge control valve; 44. a first return flow control valve; 50. a second pipe unit; 51. a second return line; 511. a second discharge end; 512. a second feed end; 52. a second discharge line; 53. a second discharge control valve; 54. a second return flow control valve; 60. a flow meter; 70. a line filter; 80. a pipeline pressure sensor; 90. a liquid level sensor; 90a, a first steering elbow; 90b, a second steering elbow; 90c, a first return auxiliary pipe; 90d and a second return auxiliary pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The embodiment of the application provides a roller coating device which is used for replacing the operation mode that a traditional worker holds a roller to manually roll and coat a wall surface, realizing automatic roller coating construction of a large-area wall surface of a building and achieving the effects of improving quality, increasing efficiency and reducing cost.

Illustratively, the roll-coating apparatus in this embodiment includes, but is not limited to, a mobile chassis, an electric cabinet, a robotic arm, an end effector, and a feeder device 100. The movable chassis provides mobility for the roller coating equipment, so that the roller coating equipment can move conveniently to complete roller coating operation of a large-area wall surface, and transition and obstacle avoidance are facilitated; in addition, the movable chassis is also used for loading an electric cabinet, a mechanical arm, a tail end executing mechanism and a feeding device 100, so that the integration degree of the roller coating equipment is improved.

The electric cabinet is arranged on the movable chassis and is respectively electrically connected with the power mechanism 10a, the mechanical arm and the feeding device 100 of the movable chassis, so that the purposes of automatic walking, flexible movement of the mechanical arm driving end actuating mechanism and automatic feeding of the end actuating mechanism are achieved. For example, the power mechanism 10a for moving the chassis is composed of a motor, a driving wheel, a steering wheel, a battery, and the like.

The tail end of the mechanical arm is used for loading the tail end executing mechanism, the mechanical arm has high moving freedom degree, and the tail end executing mechanism can be driven to flexibly move in the space, so that high-quality roller coating operation is completed on the wall surface. For example, the mechanical arm is four-axis mechanical arm, six-axis mechanical arm etc. and specifically select according to actual need can.

The end execution mechanism is specifically an end roll coating execution mechanism in the application, and the end roll coating execution mechanism is a direct execution unit for executing roll coating construction on a wall surface. In particular, fluid coatings such as latex paints may be roll-applied to wall surfaces.

In order to improve the roller coating construction efficiency, two end roller coating executing mechanisms are adopted in the application. The two tail end roll coating executing mechanisms can be simultaneously arranged on one mechanical arm or respectively arranged on two different mechanical arms, and the two tail end roll coating executing mechanisms are selected according to actual needs. For example, the end-roll coating actuator in this embodiment may be, but is not limited to, any one of a roller, a nozzle, and the like.

As shown in fig. 1, 3 and 4, in the present embodiment, the feeding device 100 includes a storage container 10, a power mechanism 10a, a first pumping mechanism 20, a second pumping mechanism 30 and a pipeline module. The storage container 10 is used to hold a paint, such as latex paint, putty paste, etc., for roll-coating onto a wall surface. The magazine 10 may be in the form of a bucket, a box, a tank, etc., and is not particularly limited thereto.

In order to ensure that the storage container 10 has continuous feeding capability, the storage container 10 is further communicated with an external feeding device through a pipeline, and the feeding device can continuously replenish the coating material into the storage container 10. It is understood that the supply device supplies the paint into the magazine 10 at predetermined timing, or when the paint remaining in the magazine 10 is equal to or less than a predetermined value, the supply device supplies the magazine 10 with the paint.

The first pumping mechanism 20 and the second pumping mechanism 30 are respectively connected with the storage container 10; the power mechanism 10a is arranged on the material storage container 10; the power mechanism 10a is used for synchronously driving the first pumping mechanism 20 and the second pumping mechanism 30 to pump the coating.

Fig. 1 shows a pipeline module according to an embodiment of the present application. The pipeline module includes: a first pipe unit 40 and a second pipe unit 50. In order to reduce the difficulty and cost of design and manufacture, the first pipeline unit 40 and the second pipeline unit 50 are preferably designed to have a symmetrical structure. Of course, in other embodiments, the first pipeline unit 40 and the second pipeline unit 50 may have an asymmetric structure, and may be designed according to specific requirements.

The first pipeline unit 40 comprises a first return pipeline 41, a first discharge pipeline 42, a first discharge control valve 43 and a first return control valve 44, a first feeding end 412 of the first return pipeline 41 (i.e. the lower end of the first return pipeline 41 shown in fig. 1) is used for connecting with the corresponding first pumping mechanism 20, the first return control valve 44 is connected in the first return pipeline 41, the first discharge pipeline 42 is connected in the first return pipeline 41, and the first discharge control valve 43 is connected in the first discharge pipeline 42; the second pipeline unit 50 includes a second return pipeline 51, a second discharge pipeline 52, a second discharge control valve 53 and a second return control valve 54, a second feeding end 512 of the second return pipeline 51 (i.e., a lower end of the second return pipeline 51 shown in fig. 1) is used for connecting with the corresponding second pumping mechanism 30, the second return control valve 54 is connected in the second return pipeline 51, the second discharge pipeline 52 is connected in the second return pipeline 51, and the second discharge control valve 53 is connected in the second discharge pipeline 52.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the pipeline module of the above scheme is applied to a roll coating device, and is specifically used as a component unit of the feeding device 100 to realize the purpose of conveying the coating to the tail end roll coating executing mechanism. The feeding device 100 further comprises a storage container 10, a first pumping mechanism 20 and a second pumping mechanism 30, before use, the first pumping mechanism 20 and the second pumping mechanism 30 are respectively connected with the storage container 10, then one end of the first return pipeline 41 is connected with the first pumping mechanism 20, the other end of the first return pipeline is connected with the storage container 10, one end of the second return pipeline 51 is connected with the second pumping mechanism 30, and the other end of the second return pipeline is connected with the storage container 10.

When the coating needs to be supplied to the end roll coating executing mechanism, the first return control valve 44 and the second return control valve 54 are closed, and the first discharge control valve 43 and the second discharge control valve 53 are opened at the same time, so that the first pumping mechanism 20 and the second pumping mechanism 30 can convey the coating in the storage container 10 to the first discharge pipeline 42 and the second discharge pipeline 52, and the coating is supplied to the end roll coating executing mechanism for roll coating construction.

When the roll coating operation is suspended or ended, and the work site is changed, the first discharging control valve 43 and the second discharging control valve 53 are closed, the first backflow control valve 44 and the second backflow control valve 54 are opened, and the first pumping mechanism 20 and the second pumping mechanism 30 are kept in an operating state, at this time, the paint in the storage container 10 is driven by the first pumping mechanism 20 and the second pumping mechanism 30 to continuously flow in the first backflow pipeline 41 and the second backflow pipeline 51 and finally flow back into the storage container 10, i.e. internal circulation of the paint is formed in the feeding device 100, so that when feeding operation needs to be performed again, the paint can rapidly flow into the first discharging pipeline 42 and the second discharging pipeline 52 from the first backflow pipeline 41 and the second backflow pipeline 51 only by closing the first backflow control valve 44 and the second backflow control valve 54 and simultaneously re-opening the first discharging control valve 43 and the second discharging control valve 53, the timeliness of discharging is ensured, and the feeding efficiency is improved; and the internal circulation mode can also avoid the phenomenon of solidification or segregation layering caused by standing of the coating in the pipeline and the storage container 10, thereby ensuring the coating quality and the rolling coating quality.

It should be noted that the first discharging control valve 43, the second discharging control valve 53, the first backflow control valve 44 and the second backflow control valve 54 may be any one of, but not limited to, a pneumatic control valve, a solenoid valve, a ball valve, and the like. For example, in the present embodiment, the first discharge control valve 43 and the second discharge control valve 53 are both solenoid valves, and the first return control valve 44 and the second return control valve 54 are both pneumatic valves.

With reference to fig. 4, in addition, on the basis of the above embodiment, the pipeline module further includes a first return sub-pipe 90c and a second return sub-pipe 90d, one end of the first return sub-pipe 90c is connected to one end of the first discharging pipeline 42 away from the first return pipeline 41, and the other end is connected to the first return pipeline 41; one end of the second return sub-pipe 90d is connected to one end of the second discharge pipe 52 far away from the second return pipe 51, and the other end is connected to the second return pipe 51.

As can be seen from fig. 4, the first discharge line 42 and the second discharge line 52 are mounted in a cantilevered configuration on the outer sides of the first return line 41 and the second return line 51, respectively. The first discharging line 42 and the second discharging line 52 have a certain length, so that a certain amount of paint is contained, and when the feeding device 100 is in the internal circulation operation mode, the part of the contained paint is difficult to circulate into the storage container 10, and the risk of pipeline blockage caused by solidification is easily generated after a long time.

Based on this, through install first return auxiliary 90c additional between first ejection of compact pipeline 42 and first return line 41, install second return auxiliary 90d additional between second ejection of compact pipeline 52 and second return line 51 for first ejection of compact pipeline 42, second ejection of compact pipeline 52 and the storage container 10 between form the intercommunicating relation, except that the coating can realize circulation flow through first return line 41 and second return line 51, the coating can also circulate in first ejection of compact pipeline 42 and second ejection of compact pipeline 52, thereby reach and prevent that the coating from stewing in first ejection of compact pipeline 42 and second ejection of compact pipeline 52 and have the risk of knot blocking the pipeline and exist.

With continued reference to fig. 1, in some embodiments, the first return line 41 includes a first feed end 412 and a first discharge end 411, the second return line 51 includes a second feed end 512 and a second discharge end 511, the first feed end 412 has a first connection with the first discharge end 411, the second feed end 512 has a second connection with the second discharge end 511, and the first connection and the second connection intersect.

As can be seen from the view point of fig. 1, the top of the storage container 10 is provided with a first material return opening 11 and a second material return opening 12 which are adjacently arranged left and right, and the bottom of the storage container 10 is provided with a first material discharge opening 13 and a second material discharge opening 14 which are adjacently arranged left and right. Wherein the first discharge opening 13 and the first return opening 11 are both arranged close to the first return line 41, and the second discharge opening 14 and the second return opening 12 are arranged close to the second return line 51. During assembly, the first feeding end 412 of the first return pipeline 41 is connected with the first discharging port 13, the first discharging end 411 of the first return pipeline 41 is connected with the second returning port 12, the second feeding end 512 of the second return pipeline 51 is connected with the second discharging port 14, and the second discharging end 511 of the second return pipeline 51 is connected with the first returning port 11, so that a structural form that the second discharging end 511 and the first discharging end 411 are arranged in a left-right staggered manner, and the first connecting line and the second connecting line are arranged in an intersecting manner can be formed.

Traditionally, materials are required to be manually mixed before each operation of roller coating equipment, latex paint and water in a proper proportion are poured into a container, and are manually stirred uniformly and then poured into a storage container 10, so that the problems of time and labor waste and low efficiency exist. The pipeline module of this scheme then can reduce artifical material process and the work preparation time of mixing, only need pour the water and the emulsion paint of suitable proportion into storage container 10, start the stirring mode, feedway 100 will realize the coating circulation automatically, carry storage container 10 upper portion through first return line 41 and second return line 51 with the material of storage container 10 bottom, and be left right staggered butt joint setting because of first discharge end 411 of first return line 41 is with second return line 51's second discharge end 511, just can turn over about and trade about with the coating in the storage container 10, until the coating stirring is even, play the effect of automatic material of mixing. The working procedure can be completed intermittently during the transition and construction of the machine, so that the working time is saved, and the working efficiency is greatly improved.

In this embodiment, the first return flow control valve 44 is specifically installed in the first discharging end 411 and is disposed close to the second return port. A second return control valve 54 is specifically mounted in the second discharge end 511 and is disposed proximate the first return port. If more do benefit to and open and close accurate control to the return circuit coating.

With continued reference to fig. 1, in some embodiments, the line module further includes a flow meter 60, and the flow meter 60 is connected to the first return line 41 and the second return line 51. The flowmeter 60 can monitor the flow rate in the pipeline in real time and memorize the appropriate coating flow rate to achieve the purpose of saving materials.

With reference to fig. 1, the pipeline module further includes a pipeline filter 70, and the pipeline filter 70 is connected to the first return pipeline 41 and the second return pipeline 51. The pipeline module further comprises a pipeline pressure sensor 80, and the pipeline pressure sensor 80 is connected to the first return pipeline 41 and the second return pipeline 51. The line filter 70 is mainly used to filter particles and impurities in the line and prevent clogging of the nozzle of the front-end actuator. The pipeline pressure sensor 80 is used for detecting the pressure in the pipeline and recording the pressure data in the pipeline, the flowmeter 60 records the flow data in the pipeline and transmits the flow data to the central control system, so that the flow and the pressure in the pipeline of the first pumping mechanism 20 and the second pumping mechanism 30 (mainly a screw pump) are adjusted, and when the spraying operation is started again, the nozzle can discharge materials timely and the flow is stable.

Still further referring to fig. 3, the pipeline module further includes a liquid level sensor 90, and the liquid level sensor 90 is connected to the first return pipeline 41 and the second return pipeline 51. The liquid level sensor 90 is used for detecting the real-time liquid level height inside the material storage container 10, and when the real-time liquid level height is larger than a set liquid level, the machine gives an alarm to stop feeding; when the real-time liquid level is lower than the set liquid level, the liquid level sensor 90 feeds back a signal to the electric cabinet, and the electric cabinet controls the feeding equipment to feed the material to the material storage container 10 in time.

With continued reference to fig. 1 and 2, in still other embodiments, the pipeline module further includes a first diverting elbow 90a and a second diverting elbow 90b, wherein one end of the first diverting elbow 90a is connected to the first return pipeline 41, the other end is used for connecting to the first pumping mechanism 20, one end of the second diverting elbow 90b is connected to the second return pipeline 51, and the other end is used for connecting to the second pumping mechanism 30. The first and second steering elbows 90a and 90b thus provide the ability of the first and second return lines 41 and 51 to be turned right down and extended up so as to be able to be connected to the magazine 10 to form a circulation line structure for the internal circulation function of the supply device 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A piping module, characterized in that the piping module comprises:

the first pipeline unit comprises a first return pipeline, a first discharge control valve and a first return control valve, the first return pipeline is used for being connected with a corresponding first pumping mechanism, the first return control valve is connected into the first return pipeline, the first discharge pipeline is connected into the first return pipeline, and the first discharge control valve is connected into the first discharge pipeline; and

the second pipeline unit comprises a second return pipeline, a second discharge control valve and a second return control valve, the second return pipeline is used for being connected with a corresponding second pumping mechanism, the second return control valve is connected to the second return pipeline, the second discharge pipeline is connected to the second return pipeline, and the second discharge control valve is connected to the second discharge pipeline.

2. The piping module of claim 1, wherein said first return piping comprises a first infeed end and a first outfeed end, and said second return piping comprises a second infeed end and a second outfeed end, said first infeed end having a first line therebetween, said second infeed end having a second outfeed end, said first line intersecting said second line.

3. The piping module of claim 1, further comprising a flow meter connected in said first return line and said second return line.

4. The piping module of claim 1, further comprising a piping filter connected in said first return line and said second return line.

5. The piping module of claim 1, further comprising a line pressure sensor connected in said first return line and said second return line.

6. The piping module of claim 1, further comprising a level sensor connected in said first return line and said second return line.

7. The piping module of claim 1, further comprising a first diverting elbow and a second diverting elbow, said first diverting elbow having one end connected to said first return piping and another end for connecting to said first pumping mechanism, said second diverting elbow having one end connected to said second return piping and another end for connecting to said second pumping mechanism.

8. The piping module according to claim 1, further comprising a first return sub-pipe and a second return sub-pipe, wherein one end of the first return sub-pipe is connected to an end of the first discharge piping remote from the first return piping, and the other end is connected to the first return piping; one end of the second backflow auxiliary pipe is connected with one end, far away from the second backflow pipeline, of the second discharging pipeline, and the other end of the second backflow auxiliary pipe is connected with the second backflow pipeline.

9. A feeding device comprising a pipe module according to any one of claims 1 to 8.

10. A roller coating apparatus comprising a supply device according to claim 9.

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