CN117922167A - Full-automatic spray head cleaning device and spray head cleaning method - Google Patents
Full-automatic spray head cleaning device and spray head cleaning method Download PDFInfo
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- CN117922167A CN117922167A CN202410330908.2A CN202410330908A CN117922167A CN 117922167 A CN117922167 A CN 117922167A CN 202410330908 A CN202410330908 A CN 202410330908A CN 117922167 A CN117922167 A CN 117922167A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 206
- 239000007921 spray Substances 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 259
- 239000004744 fabric Substances 0.000 claims abstract description 166
- 238000005507 spraying Methods 0.000 claims abstract description 77
- 230000001105 regulatory effect Effects 0.000 claims abstract description 39
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 14
- 230000001276 controlling effect Effects 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005381 potential energy Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention discloses a full-automatic spray head cleaning device, which comprises a machine base, wherein a cloth unreeling device, a cleaning liquid collecting component and a cloth reeling device are arranged on the machine base; the cleaning liquid collecting assembly comprises a substrate, a liquid spraying cleaning block is arranged on the substrate, a liquid passing groove communicated with a liquid inlet is formed in the liquid spraying cleaning block, a plurality of liquid spraying holes communicated with the liquid passing groove are formed in the upper surface of the liquid spraying cleaning block, and a speed regulating valve for controlling liquid inlet speed and a pressure regulating valve for controlling liquid inlet pressure are arranged at the liquid inlet; part of cloth between the cloth unreeling device and the cloth reeling device is attached to the upper surface of the liquid spraying cleaning block; and a power assembly for driving the cloth winding device to rotate is further arranged on the machine base. The invention also discloses a spray head cleaning method. Through the washing liquid of effective control cloth soaks wet volume and waste liquid recovery, not only guarantees that the shower nozzle is safe clean, effectively reduces the shower nozzle and blocks up, can not pollute the shower nozzle in the cleaning process moreover, improves production efficiency.
Description
Technical Field
The invention relates to a full-automatic spray head cleaning device and a spray head cleaning method, and belongs to the technical field of automatic equipment.
Background
The spray head cleaning device has wide application field and is mostly applied to auxiliary equipment for cleaning various spray head surface foreign matters and spray holes thereof. Along with the gradual rise of the 3C industry on the requirement of the liquid crystal display, an efficient spray head cleaning device is needed to clean the surface of the spray head and spray holes so as to prevent the spray holes from being blocked, the production efficiency is improved, and the subsequent processing of the liquid crystal display is facilitated.
The prior patent number is: CN202310758784.3, patent name: the first scheme is that the spray head after glue discharge firstly cleans the surface of the spray head through a brush in a cleaning tank, and then the cleaned spray head wipes the surface of dust-free cloth; the second scheme is that the spray head after glue discharge is placed in a set space, the collision head is cleaned by utilizing positive pressure and negative pressure formed on two sides of the spray head in a non-contact airflow mode, and then the cleaned spray head is wiped on the surface of dust-free cloth.
Firstly, in the two methods in the patent, the cleaning process of the spray head after the glue discharge is carried out in two steps, so that the operation is complex, and the cleaning precision of the spray head is difficult to control; secondly, there is no description about whether the dust-free cloth needs to be soaked or not in the specification, if the dust-free cloth needs to be soaked, there is no description about how to control the soaking amount, and if the dust-free cloth does not need to be soaked, the spray heads are easy to damage when the dust-free cloth is directly used for wiping with some high-precision spray heads.
In addition, the cleaning surface is not cleaned in the cleaning or wiping process, and any cleaning liquid cannot overflow to other surfaces of the spray head.
Therefore, in order to ensure the cleaning of the high-precision spray head, the amount of the cleaning liquid, the already supplied liquid pressure and the flow rate must be precisely controlled during each cleaning process.
Disclosure of Invention
The invention aims to solve the technical problems of providing a full-automatic spray head cleaning device and a spray head cleaning method, which not only ensure the safe cleaning of the spray head and effectively reduce the blockage of the spray head, but also can not pollute the spray head in the cleaning process and improve the production efficiency by effectively controlling the wetting amount of cleaning liquid and the recovery of waste liquid of cloth.
In order to solve the technical problems, the invention adopts the following technical scheme:
A full-automatic shower nozzle cleaning device, its characterized in that: the device comprises a machine base, wherein the machine base is provided with a cloth unreeling device, a cleaning liquid collecting component and a cloth reeling device;
the cleaning liquid collecting assembly comprises a substrate, a liquid spraying cleaning block is arranged on the substrate, a liquid passing groove communicated with a liquid inlet is formed in the liquid spraying cleaning block, a plurality of liquid spraying holes communicated with the liquid passing groove are formed in the upper surface of the liquid spraying cleaning block, and a speed regulating valve for controlling liquid inlet speed and a pressure regulating valve for controlling liquid inlet pressure are arranged at the liquid inlet;
a part of cloth between the cloth unreeling device and the cloth reeling device is attached to the upper surface of the liquid spraying cleaning block;
and the machine base is also provided with a power assembly for driving the cloth winding device to rotate.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: the substrate is provided with a liquid spraying and collecting block, the liquid spraying and cleaning block is arranged at the central groove of the liquid spraying and collecting block and forms a waste liquid recovery groove, and a waste liquid recovery hole connected with the negative pressure generator is arranged in the waste liquid recovery groove.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: four corners of the liquid spraying and collecting block are connected with the base plate through spring guide posts.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: the edge of the liquid spraying cleaning block is of a circular arc-shaped angle guiding structure, a plurality of liquid passing grooves are formed in the edge of the liquid spraying cleaning block at equal intervals, the liquid passing grooves are communicated with each other through a communicating groove, the communicating grooves are communicated with the liquid inlet, a plurality of liquid spraying holes extending to the surface of the liquid spraying cleaning block are formed in each liquid passing groove at equal intervals, a plurality of liquid spraying holes extending to circular arc-shaped angle guiding surfaces are further formed in the liquid passing grooves at two ends of the liquid spraying cleaning block in the cloth advancing direction at equal intervals, and sealing blocks are arranged at the ends of the liquid passing grooves and the communicating grooves.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: the cloth unreeling device comprises a first rotating shaft which is connected to the machine base and can rotate relative to the machine base, and one end of the first rotating shaft is sequentially provided with a static friction ring, a dynamic friction ring, a first spring, a first gasket and a first adjusting nut; the other end of the first rotating shaft is provided with a discharging material roll.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: the cloth winding device comprises a second rotating shaft which is connected to the machine base and can rotate relative to the machine base, one end of the second rotating shaft is sequentially provided with a material receiving roll, a friction ring, a second spring, a second gasket and a second adjusting nut, and the other end of the second rotating shaft is provided with a first synchronous belt wheel.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: still be provided with delivery wheel and cloth between clean collection liquid subassembly and the cloth coiling mechanism and compress tightly the subassembly, the cloth compress tightly the subassembly including compress tightly the gyro wheel with be used for with compress tightly the gyro wheel compresses tightly to cylinder on the delivery wheel, the pivot of delivery wheel passes the tip of frame sets up second synchronous pulley, power component pass through the hold-in range with first synchronous pulley is connected with second synchronous pulley, just receive the initial diameter that the material rolled up is greater than the diameter of delivery wheel, the both ends department of delivery wheel is provided with the spacing ring.
The foregoing full-automatic shower nozzle cleaning device, its characterized in that: a first photoelectric sensing assembly is arranged between the cloth unreeling device and the cleaning liquid collecting assembly; the conveying wheel with be provided with the second photoelectric sensing subassembly between the cloth coiling mechanism, first photoelectric sensing subassembly is including fixing photoelectric sensor and the locating shaft on the frame, be provided with through the connection piece on the locating shaft and rotate relatively, be located the swager axle of cloth top, still be provided with on the connection piece and be used for triggering photoelectric sensor's light blocking piece.
A method of cleaning a spray head comprising the steps of:
(1) And (3) feeding: the cloth on the cloth unreeling device is reeled on the cloth reeling device after passing through the surface of the liquid spraying cleaning block;
(2) Soaking: the cloth above the liquid spraying cleaning block is soaked through the speed regulating valve and the pressure regulating valve which are arranged at the liquid inlet, the pressure of the pressure regulating valve is controlled to be P in the cloth soaking process, the flow rate of the speed regulating valve is Q, the liquid inlet time is T, the cloth above the liquid spraying cleaning block is ensured to be completely soaked, and the cloth cannot overflow, and the calculation process that the pressure of the pressure regulating valve is P, the flow rate of the speed regulating valve is Q, and the liquid inlet time is T is as follows:
Regarding the calculation of the control pressure regulating valve pressure P:
The pressure required to overcome the height is derived from pascal's law: p 1 = pgh, where h represents the height of the liquid inlet, ρ represents the density of the cleaning liquid, and g represents the gravitational acceleration;
the sum of the areas of all liquid spraying holes on the surface of the liquid spraying cleaning block is as follows:
；
wherein r represents the radius of a single liquid ejection hole, and n 1 represents the number of liquid ejection holes;
the sectional area of the liquid inlet is as follows:
；
wherein d represents the diameter of the liquid inlet;
Cloth flow resistance pressure to be eliminated by the spray cleaning block:
；
wherein C represents the flow resistance coefficient of the cloth, and h 1 represents the thickness of the cloth;
p=p 1+P2;
calculation of the flow rate Q for the speed valve:
When the cleaning liquid is sprayed from the liquid spraying cleaning block, gravitational potential energy and resistance of cloth need to be overcome, and the method is obtained according to the law of conservation of kinetic energy:
；
Wherein m=ρs 1h1, wherein ρ represents the density of the cleaning liquid, v represents the flow rate of the cleaning liquid in the liquid spraying hole, m represents the mass of the cleaning liquid, E P represents the gravitational potential energy of the cleaning liquid, E K represents the kinetic energy of the cleaning liquid, then
；
From this can be calculated
；
So that:
；
calculation of the time of intake T:
the contact area of the liquid spraying cleaning block and the cloth is as follows: s=a×b, where a represents the length of the liquid jet cleaning block and b represents the width of the liquid jet cleaning block;
the volume of the cleaning liquid required by the cloth soaking above the liquid spraying cleaning block is as follows:
；
Wherein, f represents the liquid absorption amount of the unit area of the cloth, ρ represents the density of the cleaning liquid, S represents the contact area between the liquid spraying cleaning block and the cloth, then
；
(3) Cleaning: the spray head is driven by a Z-axis servo motor to descend to a soaked cloth surface, is pressed down for 1mm after being contacted with cloth, and is controlled to move to leave at a uniform speed on the cloth surface, so that the spray head is cleaned;
(4) And (3) waste liquid recovery: when the spray head is pressed down, the cleaning liquid in the cloth and the ink on the surface of the spray head are dissolved, the redundant liquid flows into a designed waste liquid recovery tank along the periphery of the spray liquid cleaning block, and negative pressure is connected to recover the waste liquid, so that the pollution and corrosion of the overflow liquid to equipment are prevented;
(5) And (3) cloth moving: after the cleaning of the spray heads with one group is completed, the power assembly drives the cloth winding device to rotate, the cleaned cloth is wound, and simultaneously, the cloth which is not soaked is driven to move to the spray cleaning block, and the step (2), the step (3) and the step (4) are repeated to clean the spray heads with the next group.
The beneficial effects of the invention are as follows:
1. By adopting the cloth unreeling device and the cloth reeling device with the damping structures and matching with the photoelectric sensing assembly, the position of the cloth can be accurately controlled by one stepping motor, the cloth can be always in a tensioning state, the cleaning of the spray head is convenient to complete, and the failure stop rate generated by the cleaning mechanism is effectively reduced; meanwhile, the pressure regulating valve and the speed regulating valve are arranged at the liquid inlet to control the pressure, the flow speed and the time of liquid inlet each time, so that the wetting quantity of the cleaning liquid and the recovery of waste liquid of the cloth are effectively controlled, the safety and the cleanliness of the spray head are ensured, the blockage of the spray head is effectively reduced, the spray head is not polluted in the cleaning process, and the production efficiency is improved;
2. According to the height and diameter of a liquid inlet in the cleaning device, related parameters of cleaning liquid, the thickness of wiping cloth, the flow resistance coefficient of the selected cloth and the like, the consumption, pressure intensity, flow speed and other parameters of the cleaning liquid required in each cleaning process are calculated by combining the areas of a liquid spraying cleaning block and a liquid spraying hole, and a pressure regulating valve and a speed regulating valve are correspondingly arranged to ensure the cleaning quality.
Drawings
FIG. 1 is a front elevational view of a fully automatic spray head cleaning device of the present invention;
FIG. 2 is a rear elevational view of a fully automatic spray head cleaning device of the present invention;
FIG. 3 is a front view of a cleaning liquid collection assembly of a fully automatic spray head cleaning device of the present invention;
FIG. 4 is a top view of a cleaning liquid collection assembly of a fully automatic spray head cleaning device of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a cross-sectional view of a cloth unwind apparatus of a fully automatic spray head cleaning apparatus of the present invention;
FIG. 7 is a cross-sectional view of a cloth winding device of a fully automatic spray head cleaning device of the present invention;
FIG. 8 is a cross-sectional view of a fully automatic spray head cleaning device of the present invention at a feed wheel and cloth compression assembly;
Fig. 9 is a schematic structural view of a first photo-sensing assembly of a fully automatic spray head cleaning device according to the present invention.
Detailed Description
The invention will be further described with reference to the drawings.
1-9, A full-automatic spray head cleaning device comprises a machine base 1, wherein a cloth unreeling device 2, a cleaning liquid collecting component 4 and a cloth reeling device 7 are arranged on the machine base 1; the cleaning and liquid collecting assembly 4 comprises a substrate 41, wherein a liquid spraying cleaning block 43 is arranged on the substrate 41, a liquid passing groove 432 communicated with a liquid inlet 46 is formed in the liquid spraying cleaning block 43, a plurality of liquid spraying holes 431 communicated with the liquid passing groove 432 are formed in the upper surface of the liquid spraying cleaning block 43, and a speed regulating valve for controlling liquid inlet speed and a pressure regulating valve for controlling liquid inlet pressure are arranged at the liquid inlet 46; a part of cloth between the cloth unreeling device 2 and the cloth reeling device 7 is attached to the upper surface of the liquid spraying cleaning block 43; the machine base 1 is also provided with a power assembly 6 for driving the cloth winding device 7 to rotate.
The liquid feeding speed, liquid feeding time and liquid feeding pressure of the cleaning liquid at the liquid inlet 46 are controlled through the speed regulating valve and the pressure regulating valve, the cloth above the liquid spraying cleaning block 43 is ensured to be completely soaked and not overflowed, the spray head to be cleaned is controlled to be pressed down and is pressed down for a small distance after being contacted with the cloth above the liquid spraying cleaning block 43, then the spray head is horizontally moved relative to the cloth, in the moving process, the ink on the surface of the spray head is dissolved by the cleaning liquid in the cloth and simultaneously wiped, and the cleaning is completed, wherein four corners of the liquid spraying liquid collecting block 42 are connected with the base plate 41 through the spring guide posts 47, and the spray head is ensured not to be damaged in the pressing process of the spray head relative to the liquid spraying cleaning block 43.
In this embodiment, the substrate 41 is provided with a liquid spraying and collecting block 42, the liquid spraying and cleaning block 43 is disposed at a central groove of the liquid spraying and collecting block 42, and a waste liquid recovery groove 44 is formed, a waste liquid recovery hole 45 connected with a negative pressure generator is disposed in the waste liquid recovery groove 44, and waste liquid generated in the cleaning process flows into the waste liquid recovery groove 44 and is discharged through the negative pressure generator.
The edge of the liquid spraying cleaning block 43 is of a circular arc-shaped angle guiding structure, damage is avoided, a plurality of liquid passing grooves 432 are formed in the liquid spraying cleaning block 43 at equal intervals, the liquid passing grooves 432 are communicated with each other through a communicating groove 433, the communicating grooves 433 are communicated with the liquid inlet 46, a plurality of liquid spraying holes 431 extending to the surface of the liquid spraying cleaning block 43 are formed in each liquid passing groove 432 at equal intervals, a plurality of liquid spraying holes 431 extending to circular arc-shaped angle guiding surfaces are formed in the liquid passing grooves 432 at the two ends of the liquid spraying cleaning block 43 in the cloth advancing direction at equal intervals, and sealing blocks 48 are arranged at the ends of the liquid passing grooves 432 and the communicating grooves 433. Through evenly setting up hydrojet hole 431 at the surface of hydrojet cleaning piece 43, ensure that the washing liquid can be even in entering the cloth, be convenient for later stage clean. In the process that the spray head is pressed down and is pressed down for a small distance after being contacted with the cloth above the spray liquid cleaning block 43, a small amount of cleaning liquid extruded on the cloth can flow into the waste liquid recovery tank 44 along the arc-shaped guide angle at the edge, and the cleaning liquid can be effectively prevented from touching other surfaces of the spray head except the cleaning surface. The arc-shaped guide angles at the two ends of the spray cleaning block 43 in the cloth traveling direction are larger, so that the cloth is ensured to be completely attached to the surface of the spray cleaning block 43 in a state that the two ends of the cloth are tensioned by the cloth unreeling device 2 and the cloth reeling device 7.
The cloth unreeling device 2 comprises a first rotating shaft 225 which is connected to the machine base 1 and can rotate relative to the machine base 1, wherein one end of the first rotating shaft 225 is sequentially provided with a static friction ring 215, a dynamic friction ring 214, a first spring 213, a first gasket 212 and a first adjusting nut 211; the other end of the first rotating shaft 225 is provided with a discharge roll 221. The friction force between the static friction ring 215 and the dynamic friction ring 214 is adjusted through the first adjusting nut 211 according to the requirement, so that the discharging material roll 221 can be enabled to rotate and discharge under the condition of tensile force, and the discharging material roll 221 stops rotating immediately once the tensile force is lost.
The cloth winding device 7 comprises a second rotating shaft 715 which is connected to the base 1 and can rotate relative to the base 1, one end of the second rotating shaft 715 is sequentially provided with a material receiving roll 712, a friction ring 721, a second spring 722, a second gasket and a second adjusting nut 724, and the other end of the second rotating shaft 715 is provided with a first synchronous belt pulley 711. The friction force of the friction ring 721 relative to the material receiving roll 712 is regulated through the second regulating nut 724, when the first synchronous pulley 711 drives the second rotary shaft 715 to rotate, the material receiving roll 712 is driven to receive materials, when the power of the first synchronous pulley 711 disappears, the second rotary shaft 715 stops rotating, the material receiving roll 712 can not rotate due to the tensile force of cloth under the action of the friction ring 721, and therefore the cloth can be ensured to always process the tension state under the action of the cloth unreeling device 2 and the cloth reeling device 7 with damping effects, and the cleaning of a collision head is facilitated.
Still be provided with delivery wheel 5 and cloth hold-down assembly 8 between clean collection subassembly 4 and the cloth coiling mechanism 7, cloth hold-down assembly 8 include hold-down roller 83 and be used for with hold-down roller 83 compresses tightly cylinder 82 on the delivery wheel 5, the pivot 512 of delivery wheel 5 passes the tip of frame 1 sets up second synchronous pulley 511, power pack 6 pass through hold-in range 9 with first synchronous pulley 711 and second synchronous pulley 511 are connected, just the initial diameter of receipts material book 712 is greater than the diameter of delivery wheel 5, the both ends department of delivery wheel 5 is provided with spacing ring 514.
The rotating shaft 512 and the first synchronous belt pulley 711 are simultaneously driven to rotate by the power assembly 6 and the synchronous belt 9, the distance of each movement of the cloth is controlled by controlling the rotating distance of the rotating shaft 512, and when the diameter of the material receiving roll 712 on the second rotating shaft 715 driven by the first synchronous belt pulley 711 is gradually increased, in the rotating process, when the tension of the cloth is relative to the friction force generated by the friction ring 721 of the cloth, the material receiving roll 712 can slip relative to the second rotating shaft 715, the material receiving can not be continuously carried out, and the cloth is prevented from being broken. The initial diameter of the receiving roll 712 is larger than the diameter of the conveying wheel 5, so that the cloth is ensured to be tensioned in the initial state.
A first photoelectric sensing assembly 3 is arranged between the cloth unreeling device 2 and the cleaning liquid collecting assembly 4; the second photoelectric sensing assembly is arranged between the conveying wheel 5 and the cloth winding device 7, the first photoelectric sensing assembly 3 comprises a photoelectric sensor 314 and a positioning shaft 311 which are fixed on the machine base 1, a pressing shaft 312 which can rotate relative to the positioning shaft 311 and is positioned above cloth is arranged on the positioning shaft 311 through a connecting sheet, and a light blocking sheet 313 for triggering the photoelectric sensor 314 is also arranged on the connecting sheet.
In the initial state, the pressing shaft 312 is located above the cloth and is supported by the cloth, when the cloth feeding is completed, the support disappears, and the pressing shaft 312 rotates downwards, so that the light blocking piece 313 passes through the photoelectric sensor 314 and is triggered, and the staff is prompted that the cloth is used up. The structure of the second photoelectric sensing assembly is similar to that of the first photoelectric sensing assembly 3, the light blocking sheets are arranged on the rotating shaft 512 and symmetrically provided with two light blocking sheets, the corresponding photoelectric sensor can be triggered once when the light blocking sheets rotate for 180 degrees, the photoelectric sensor is electrically connected with the power assembly 6, and in the embodiment, the power assembly 6 can control the moving distance of the cloth by only selecting a relatively cheap stepping motor due to the cooperation of the second photoelectric sensing assembly, so that the cost is lower compared with a traditional mode of adopting servo motor control.
A method of cleaning a spray head comprising the steps of:
(1) And (3) feeding: the cloth on the cloth unreeling device 2 is reeled on the cloth reeling device 7 after passing through the surface of the liquid spraying cleaning block 43; after feeding, the material is preloaded and rotated for one circle through a power assembly, the diameter of a material receiving roll 712 is larger than that of a conveying wheel 5, and a cloth winding device 7 and a cloth unwinding device 2 are provided with damping slipping mechanisms, so that the material roll 221 is in a tensioning state;
(2) Soaking: the cloth above the liquid spraying cleaning block 43 is soaked by the speed regulating valve and the pressure regulating valve arranged at the liquid inlet 46, in the cloth soaking process, the pressure regulating valve is controlled to be P, the flow rate of the speed regulating valve is Q, the liquid inlet time is T, the cloth above the liquid spraying cleaning block 43 is ensured to be completely soaked and cannot overflow, and the calculating process of the pressure regulating valve is controlled to be P, the flow rate of the speed regulating valve is Q, and the liquid inlet time is T is as follows:
Regarding the calculation of the control pressure regulating valve pressure P:
the pressure required to overcome the height is derived from pascal's law: p 1 = pgh, where h represents the height of the liquid inlet 46, ρ represents the density of the cleaning liquid, and g represents the gravitational acceleration;
the area of all liquid ejection holes 431 on the surface of the liquid ejection cleaning block 43 is:
；
Where r represents the radius of a single liquid ejection hole 431 and n 1 represents the number of liquid ejection holes 431;
the cross-sectional area of the liquid inlet 46 is:
；
Wherein d represents the diameter of the inlet 46;
Cloth flow resistance pressure to be eliminated by the spray cleaning block 43:
；
wherein C represents the flow resistance coefficient of the cloth, and h 1 represents the thickness of the cloth;
p=p 1+P2;
calculation of the flow rate Q for the speed valve:
When the cleaning liquid is sprayed from the liquid spraying cleaning block 43, gravitational potential energy and resistance of cloth need to be overcome, and the method is obtained according to the law of conservation of kinetic energy:
；
Wherein m=ρs 1h1, where ρ represents the density of the cleaning liquid, v represents the flow rate of the cleaning liquid in the liquid spraying hole 431, m represents the mass of the cleaning liquid, E P represents the gravitational potential energy of the cleaning liquid, E K represents the kinetic energy of the cleaning liquid, then
；
From this can be calculated
；
So that:
；
calculation of the time of intake T:
The contact area between the liquid spraying cleaning block 43 and the cloth is as follows: s=a×b, where a denotes the length of the liquid ejection cleaning block 43, and b denotes the width of the liquid ejection cleaning block 43;
The volume of cleaning liquid required for soaking the cloth above the liquid spraying cleaning block 43 is as follows:
；
wherein f represents the liquid absorption amount per unit area of the cloth, ρ represents the density of the cleaning liquid, and S represents the contact area between the liquid spray cleaning block 43 and the cloth
；
(3) Cleaning: the spray head is driven by a Z-axis servo motor to descend to a soaked cloth surface, is pressed down for 1mm after being contacted with cloth, and is controlled to move to leave at a uniform speed on the cloth surface, so that the spray head is cleaned;
(4) And (3) waste liquid recovery: when the spray head is pressed down, the cleaning liquid in the cloth and the ink on the surface of the spray head are dissolved, the redundant liquid flows into a designed waste liquid recovery tank 44 along the periphery of the spray liquid cleaning block 43, and the waste liquid is recovered by connecting negative pressure, so that the pollution and corrosion of the equipment by the overflow liquid are prevented;
(5) And (3) cloth moving: after the cleaning of the spray heads with one group is completed, the power assembly 6 drives the cloth winding device 7 to rotate, the cleaned cloth is wound, and simultaneously, the cloth which is not soaked is driven to move to the spray cleaning block 43, and the step (2), the step (3) and the step (4) are repeated to clean the spray heads with the next group.
In this embodiment, the accurate values of the pressure regulating valve pressure P, the flow Q of the speed regulating valve and the liquid inlet time T are obtained through calculation, so that the cleaning liquid entering from the liquid inlet 46 can be ensured to completely soak the cloth above the liquid spraying cleaning block 43 each time, and in the process that the spray head is pressed down and moved, the spray head is not polluted due to the fact that the cleaning liquid overflows to other surfaces of the spray head, the cleaning quality is ensured, and further the synchronous cleaning of the spray head in the cleaning process is realized, and the cleaning efficiency is ensured.
In summary, according to the full-automatic spray head cleaning device and the spray head cleaning method provided by the invention, the spray head is ensured to be safely cleaned by effectively controlling the wetting amount of the cleaning liquid and the recovery of the waste liquid of the cloth, the spray head blockage is effectively reduced, the spray head is not polluted in the cleaning process, and the production efficiency is improved.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A full-automatic shower nozzle cleaning device, its characterized in that: the device comprises a machine base (1), wherein a cloth unreeling device (2), a cleaning liquid collecting component (4) and a cloth reeling device (7) are arranged on the machine base (1);
The cleaning liquid collecting assembly (4) comprises a substrate (41), a liquid spraying cleaning block (43) is arranged on the substrate (41), a liquid passing groove (432) communicated with a liquid inlet (46) is formed in the liquid spraying cleaning block (43), a plurality of liquid spraying holes (431) communicated with the liquid passing groove (432) are formed in the upper surface of the liquid spraying cleaning block (43), and a speed regulating valve for controlling liquid inlet speed and a pressure regulating valve for controlling liquid inlet pressure are arranged at the liquid inlet (46);
part of cloth between the cloth unreeling device (2) and the cloth reeling device (7) is attached to the upper surface of the liquid spraying cleaning block (43);
the machine seat (1) is also provided with a power component (6) for driving the cloth winding device (7) to rotate.
2. A fully automatic spray head cleaning device according to claim 1, wherein: the liquid spraying and collecting device is characterized in that a liquid spraying and collecting block (42) is arranged on the base plate (41), the liquid spraying and cleaning block (43) is arranged at the central groove of the liquid spraying and collecting block (42) and forms a waste liquid recovery groove (44), and a waste liquid recovery hole (45) connected with a negative pressure generator is formed in the waste liquid recovery groove (44).
3. A fully automatic spray head cleaning device according to claim 2, characterized in that: four corners of the liquid spraying and collecting block (42) are connected with the base plate (41) through spring guide posts (47).
4. A fully automatic spray head cleaning device according to claim 1, wherein: the edge of hydrojet washs piece (43) is convex chamfer structure, and inside equidistant a plurality of liquid passing groove (432) that are provided with, communicate each other through a intercommunication groove (433) between liquid passing groove (432), intercommunication groove (433) with inlet (46) are linked together, every equidistant a plurality of liquid spraying hole (431) that extend to hydrojet washs piece (43) surface that are provided with on liquid passing groove (432), and be located on liquid passing groove (432) of hydrojet washs piece (43) both ends department of cloth advancing direction and still equidistant a plurality of hydrojet holes (431) that extend to convex chamfer face respectively, the tip of liquid passing groove (432) and intercommunication groove (433) all is provided with sealing block (48).
5. A fully automatic spray head cleaning device according to claim 1, wherein: the cloth unreeling device (2) comprises a first rotating shaft (225) which is connected to the machine base (1) and can rotate relative to the machine base (1), wherein one end of the first rotating shaft (225) is sequentially provided with a static friction ring (215), a dynamic friction ring (214), a first spring (213), a first gasket (212) and a first adjusting nut (211); the other end of the first rotating shaft (225) is provided with a discharging material roll (221).
6. The fully automatic spray head cleaning device of claim 5, wherein: the cloth winding device (7) comprises a second rotating shaft (715) which is connected to the base (1) and can rotate relative to the base (1), one end of the second rotating shaft (715) is sequentially provided with a material receiving roll (712), a friction ring (721), a second spring (722), a second gasket and a second adjusting nut (724), and the other end of the second rotating shaft (715) is provided with a first synchronous belt wheel (711).
7. The fully automatic spray head cleaning device of claim 6, wherein: still be provided with delivery wheel (5) and cloth hold-down assembly (8) between clean collection liquid subassembly (4) and cloth coiling mechanism (7), cloth hold-down assembly (8) include hold-down roller (83) and be used for with hold-down roller (83) compress tightly cylinder (82) on delivery wheel (5), the pivot (512) of delivery wheel (5) pass the tip of frame (1) sets up second synchronous pulley (511), power pack (6) through hold-in range (9) with first synchronous pulley (711) and second synchronous pulley (511) are connected, just receive initial diameter that material rolled up (712) is greater than the diameter of delivery wheel (5), the both ends department of delivery wheel (5) is provided with spacing ring (514).
8. The fully automatic spray head cleaning device of claim 7, wherein: a first photoelectric sensing assembly (3) is arranged between the cloth unreeling device (2) and the cleaning liquid collecting assembly (4); the novel automatic feeding device is characterized in that a second photoelectric sensing assembly is arranged between the conveying wheel (5) and the cloth winding device (7), the first photoelectric sensing assembly (3) comprises a photoelectric sensor (314) and a positioning shaft (311) which are fixed on the machine base (1), a pressing shaft (312) which can rotate relative to the positioning shaft (311) and is positioned above cloth is arranged on the positioning shaft through a connecting sheet, and a light blocking sheet (313) used for triggering the photoelectric sensor (314) is further arranged on the connecting sheet.
9. A head cleaning method using the fully automatic head cleaning apparatus according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
(1) And (3) feeding: the cloth on the cloth unreeling device (2) is reeled on the cloth reeling device (7) after passing through the surface of the liquid spraying cleaning block (43);
(2) Soaking: the cloth above the liquid spraying cleaning block (43) is soaked through a speed regulating valve and a pressure regulating valve which are arranged at a liquid inlet (46), the pressure of the pressure regulating valve is controlled to be P, the flow rate of the speed regulating valve is Q, the liquid inlet time is T, the cloth above the liquid spraying cleaning block (43) is ensured to be completely soaked, and the cloth cannot overflow, and the calculation process of the pressure regulating valve is controlled to be P, the flow rate of the speed regulating valve is Q, and the liquid inlet time is T is as follows:
Regarding the calculation of the control pressure regulating valve pressure P:
The pressure required to overcome the height is derived from pascal's law: p 1 = pgh, where h represents the height of the liquid inlet (46), ρ represents the density of the cleaning liquid, and g represents the gravitational acceleration;
The sum of the areas of all the spray holes (431) on the surface of the spray cleaning block (43) is as follows:
；
Wherein r represents the radius of a single liquid ejection hole (431), and n 1 represents the number of liquid ejection holes (431);
The cross-sectional area of the liquid inlet (46) is:
；
Wherein d represents the diameter of the liquid inlet (46);
cloth flow resistance pressure to be eliminated by the spray cleaning block (43):
；
wherein C represents the flow resistance coefficient of the cloth, and h 1 represents the thickness of the cloth;
p=p 1+P2;
calculation of the flow rate Q for the speed valve:
when the cleaning liquid is sprayed from the liquid spraying cleaning block (43), gravitational potential energy and resistance of cloth need to be overcome, and the method is obtained according to the law of conservation of kinetic energy:
；
Wherein m=ρs 1h1, where ρ represents the density of the cleaning liquid, v represents the flow rate of the cleaning liquid in the liquid spraying hole (431), m represents the mass of the cleaning liquid, E P represents the gravitational potential energy of the cleaning liquid, E K represents the kinetic energy of the cleaning liquid, then
；
From this can be calculated
；
So that:
；
calculation of the time of intake T:
The contact area between the liquid spraying cleaning block (43) and the cloth is as follows: s=a×b, where a denotes a length of the liquid ejection cleaning block (43), and b denotes a width of the liquid ejection cleaning block (43);
The volume of the cleaning liquid required by the cloth soaking above the liquid spraying cleaning block (43) is as follows:
；
Wherein, f represents the liquid absorption amount of the unit area of the cloth, ρ represents the density of the cleaning liquid, and S represents the contact area between the liquid spraying cleaning block (43) and the cloth
；
(3) Cleaning: the spray head is driven by a Z-axis servo motor to descend to a soaked cloth surface, is pressed down for 1mm after being contacted with cloth, and is controlled to move to leave at a uniform speed on the cloth surface, so that the spray head is cleaned;
(4) And (3) waste liquid recovery: when the spray head is pressed down, the cleaning liquid in the cloth and the ink on the surface of the spray head are dissolved, the redundant liquid flows into a designed waste liquid recovery groove (44) along the periphery of the spray liquid cleaning block (43), and negative pressure is connected to recover the waste liquid, so that pollution and corrosion of the equipment by the overflow liquid are prevented;
(5) And (3) cloth moving: after the cleaning of the spray heads with one group is completed, the power assembly (6) drives the cloth winding device (7) to rotate, the cleaned cloth is wound, the non-soaked cloth is driven to move to the spray cleaning block (43), and the step (2), the step (3) and the step (4) are repeated to clean the spray heads with the next group.
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