CN111016439A - Spray head cleaning mechanism and application method thereof - Google Patents
Spray head cleaning mechanism and application method thereof Download PDFInfo
- Publication number
- CN111016439A CN111016439A CN202010007084.7A CN202010007084A CN111016439A CN 111016439 A CN111016439 A CN 111016439A CN 202010007084 A CN202010007084 A CN 202010007084A CN 111016439 A CN111016439 A CN 111016439A
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- Prior art keywords
- water
- ink stack
- pipe
- spray head
- ink
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- 238000004140 cleaning Methods 0.000 title claims abstract description 65
- 239000007921 spray Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 230000008093 supporting effect Effects 0.000 claims abstract description 49
- 238000005406 washing Methods 0.000 claims abstract description 33
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 32
- 239000002351 wastewater Substances 0.000 claims description 28
- 238000007654 immersion Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims 1
- 230000010405 clearance mechanism Effects 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000976 ink Substances 0.000 description 135
- 238000007639 printing Methods 0.000 description 15
- 239000002699 waste material Substances 0.000 description 10
- 238000007790 scraping Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 6
- 238000009736 wetting Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2002/16573—Cleaning process logic, e.g. for determining type or order of cleaning processes
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention relates to a spray head cleaning mechanism and a using method thereof, and the spray head cleaning mechanism comprises an ink stack body, an ink stack supporting table and a lifting mechanism, wherein the lifting mechanism comprises a driving motor and a bidirectional screw rod connected with the driving motor, both ends of the bidirectional screw rod are in threaded connection with screw fixing plates, and the screw fixing plates are abutted to an ink stack bottom plate; the screw fixing plates are connected with a shear type supporting frame, the bottom of the shear type supporting frame is connected with the two screw fixing plates, and the top of the shear type supporting frame is connected with the ink stack supporting table; the ink stack body moves simultaneously along with the ink stack supporting table, the bottom of each ink stack body is communicated with a cleaning pipe, each cleaning pipe comprises a water washing pipe used for water inlet and outlet and an air suction pipe used for air suction, one end, far away from the ink stack body, of each water washing pipe is connected with a water pump, and one end, far away from the ink stack body, of each air suction pipe is connected with an air pump. The invention has the effect of more fully cleaning the spray head.
Description
Technical Field
The invention relates to the technical field of cleaning of printing machines, in particular to a spray head cleaning mechanism.
Background
The printer sprays the ink with different color combinations to the spray medium through the nozzle to form the required pattern on the spray medium. The spray head is arranged on the spray vehicle and is driven by the spray vehicle to move transversely so as to spray in the width direction of the spray medium.
After the existing nozzle sprays ink, the ink can be left on the lower surface of the nozzle, and is easily dried after a period of time, so that the ink is blocked at the spray hole of the nozzle, and the subsequent ink is difficult to spray from the nozzle to print a printing medium; or the ink can print the dried ink block on the printing medium, which affects the printing effect. Therefore, after the printer is stopped for a period of time and needs to print again, the cleaning assembly needs to be used for cleaning the spray head, and the ink blocks blocked on the lower surface of the spray head are cleaned.
At present, for a printer using a cleaning assembly, an ink stack is a core working component on the cleaning assembly, and the overall structure of the ink stack is a component mainly composed of rubber, plastics, sponge, stainless steel meshes and the like. The assembled ink stack is a cavity with an upward opening, and rubber is arranged around the top of the ink stack. The hollow cylinder is led out from the lower part of the cavity and connected with a cleaning pipe for sucking ink, and the cleaning pipe is connected to an external air pump. When the spray hole on the spray head is blocked, the lifting mechanism on the cleaning assembly enables the ink stack to rise and the spray head to be sealed to form a cavity, the external pump body starts to suck ink, the cavity forms negative pressure, the ink in the spray hole is sucked out, and therefore a flow channel in the spray hole on the spray head is dredged. The quality of the working performance of the ink stack thus indirectly determines the final print quality of the printer.
However, in the above prior art, the cleaning operation of the nozzle is mainly performed by sucking the excess waste ink in the nozzle by the way of pumping vacuum by the air pump, and after the ink is coagulated into blocks, the effect of sucking and cleaning the ink blocks is greatly reduced.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a nozzle cleaning mechanism.
One of the above objects of the present invention is achieved by the following technical solutions: a spray head cleaning mechanism comprises an ink stack body, an ink stack supporting table and a lifting mechanism, wherein the ink stack supporting table corresponds to spray heads one by one, the ink stack supporting table supports the ink stack, the lifting mechanism drives the ink stack supporting table to lift, the lifting mechanism comprises a driving motor and a bidirectional screw rod, the driving motor is connected to an ink stack bottom plate, the bidirectional screw rod is connected to the driving motor, screw fixing plates are in threaded connection with two ends of the bidirectional screw rod, the screw fixing plates abut against the ink stack bottom plate, and when the bidirectional screw rod rotates, the two screw fixing plates move in an; the ink stack supporting platform is driven by the shear type supporting frame to ascend or descend when the two screw fixing plates move relatively; the ink stack body moves simultaneously along with the ink stack supporting table, the bottom of each ink stack body is communicated with a cleaning pipe, each cleaning pipe comprises a water washing pipe used for water inlet and outlet and an air suction pipe used for air suction, one end, far away from the ink stack body, of each water washing pipe is connected with a water pump, and one end, far away from the ink stack body, of each air suction pipe is connected with an air pump.
Through adopting above-mentioned technical scheme, use the stable drive china ink stack brace table of two-way lead screw to go up and down for the range of going up and down is more controllable, goes up and down more stably, and the load is bigger, even intake, when going out water, still can keep the outrigger to china ink stack brace table, can not take place to rock, leads to sealed not tight.
The present invention in a preferred example may be further configured to: the ink stack bottom plate is provided with a limiting mechanism at one end of the bidirectional screw rod, the limiting mechanism comprises a limiting plate connected to the ink stack bottom plate, a threaded through hole parallel to the axial direction of the bidirectional screw rod is formed in the limiting plate, a limiting bolt is connected to the threaded through hole in an internal thread mode, and a screw rod of the limiting bolt penetrates through the limiting plate and is located on a movement track of the screw fixing plate.
By adopting the technical scheme, the maximum lifting height of the ink stack supporting table can be adjusted, so that the situation that the spray head is blocked by the ink stack supporting table and cannot work normally is prevented;
when the screw fixing plates move, the lowest position of the ink stack supporting platform is the position of the two screw fixing plates when the two screw fixing plates abut against each other, and the highest position of the ink stack supporting platform is the position of the screw fixing plates when the screw fixing plates abut against the limiting bolts; and the position accessible of the screw rod of spacing bolt is twisted spacing bolt and is adjusted, and the deeper that spacing bolt twists, the screw fixation board just more easily with spacing bolt butt, the highest height of china ink stack brace table just is lower.
The present invention in a preferred example may be further configured to: the washing pipe includes the soaking pipe that directly communicates with the ink stack body, to the inlet tube that soaks the pipe water supply and will soak the outlet pipe that intraductal rivers were taken out, and the inlet tube is connected respectively in different water pumps with the outlet pipe, and inlet tube and outlet pipe all are equipped with the valve, and the valve is located the intersection of inlet tube, outlet pipe and soaking pipe.
Through adopting above-mentioned technical scheme, when using the pipe of washing to wash the shower nozzle, gas straw, outlet pipe seal under the control of valve, and elevating system rises, makes ink stack body and shower nozzle form a seal chamber, and the intake pump starts afterwards, and the water injection is washed towards the shower nozzle water injection to after the water injection volume reaches certain water yield, the intake pump is closed. After a period of immersion cleaning, the water outlet pipe is opened under the control of the valve, the water outlet pump sucks water after the water outlet pipe is opened, and the sewage and sundries in the water washing pipe are sucked away together to finish the cleaning of the spray head.
The present invention in a preferred example may be further configured to: the connection part of the immersion cleaning pipe and the ink stack body is divided into a first uniform flow pipe and a second uniform flow pipe, and the first uniform flow pipe and the second uniform flow pipe are respectively connected with different positions of the ink stack body.
By adopting the technical scheme, the first uniform flow pipe and the second uniform flow pipe are respectively communicated with different positions of the ink stack body, so that when water is fed, the cleaning is more uniform, and cross-flow scouring of the spray head is realized through mutual collision of two water flows, so that a better cleaning effect is achieved;
and when going out water, go out water simultaneously through two pipes, also enable the better outflow of the solid impurity in aquatic, the filth that remains in the ink stack body is still less.
The present invention in a preferred example may be further configured to: the top surface of the ink stack supporting table is dug with a discharge groove, a plurality of bulges are formed at positions where the discharge groove is not dug, one part of the bulges is called as a supporting seat, and the ink stack body is in one-to-one correspondence with the supporting seat and is connected to the top of the supporting seat; the discharge groove is provided with a waste water discharge channel downwards.
Through adopting above-mentioned technical scheme, establish through digging of blow-down tank and the setting of supporting seat for the height of ink stack body is higher relatively, thereby when making to have waste water, useless ink accidental outflow in the ink stack body, perhaps when the shower nozzle carries out the preliminary election, useless ink can converge the blow-down tank, and can not stop in ink stack body department.
The present invention in a preferred example may be further configured to: and a drainage line extending into the wastewater discharge channel is arranged in the discharge groove, is made of water-absorbing materials and is continuously and uniformly laid along the discharge groove.
By adopting the technical scheme, when the waste water and the waste ink contact the drainage line, the capillary tubes of the surface of the fabric and the inner gap holes are utilized to absorb water and absorb ink through capillary action until the drainage line is more and more wet, and under the wetting action, the part of the drainage line in the waste water discharge channel becomes wet as well even if the drainage line cannot directly absorb water;
at the moment, the waste water in the drainage line in the waste water discharge channel flows away along the waste water discharge channel under the action of gravity, and new waste water is supplemented under the action of wetting while old waste water flows away, so that the accumulated water in the discharge groove is continuously discharged under the coordination of gravity, wetting and capillary action, and the discharge groove is ensured not to have accumulated water, but only has one wetted drainage line;
the drainage line is used for drainage, so that the drainage groove only needs to be kept horizontal and does not need to be obliquely arranged, accumulated water can be drained, the manufacturing process is greatly simplified, and the manufacturing cost is saved.
The second aim of the invention is realized by the following technical scheme: a use method of a spray head cleaning mechanism comprises the following steps:
s1, starting a driving motor, and lifting the ink stack supporting table by the scissor type supporting frame until the ink stack body is abutted to the spray head to form a closed cavity;
s2, judging whether water washing is needed, if yes, entering the next step, and if not, turning to S6;
s3, sealing the air suction pipe and the water outlet pipe, starting the water inlet pump, and injecting water towards the spray head for immersion cleaning;
s4, detecting the water injection amount of the water inlet pump, and closing the water inlet pump after the water amount reaches the required water amount;
s5, detecting the immersion cleaning time, starting the water pump after the immersion cleaning time reaches the required time, and closing the water pump after absorbing the water for a period of time;
s6, sealing the water inlet pipe and the water outlet pipe, starting the air pump, and closing the air pump after sucking for a period of time;
and S7, starting the driving motor, resetting the ink stack supporting table, and ending.
The present invention in a preferred example may be further configured to: in step S2, calculating the shutdown time according to the starting time and the real-time of the last driving motor, performing water washing when the shutdown time exceeds a threshold value, and not performing water washing when the shutdown time is lower than the threshold value; the threshold value is preset by the operator.
The present invention in a preferred example may be further configured to: in step S4, detecting the water quantity by using a water flow sensor, and stopping the water inlet pump when the water quantity exceeds a threshold value; the threshold value is calculated by the staff according to the size and the type of the spray head and is preset.
The present invention in a preferred example may be further configured to: the suction time of the water pump in the step S5 and the suction time of the air pump in the step S6 are calculated by the staff according to the size and type of the nozzle, and are preset.
In summary, the invention includes at least one of the following beneficial technical effects:
1. through the arrangement of the lifting mechanism, the ink stack supporting table is more stable in work and can be used in the washing process of water washing to keep stable;
2. through the arrangement of the limiting mechanism, the maximum adjusting height of the ink stack supporting table can be adjusted through the position of the preset limiting bolt, so that the situation that the normal use of the spray head is influenced due to the collision of the spray head and the ink stack supporting table is avoided;
3. through the design of the first uniform flow pipe and the second uniform flow pipe, the turbulent flow scouring of the spray head is realized, and the cleaning effect of the spray head is improved;
4. through the setting of drain line for the waste water in the drain tank can be more convenient handle.
Drawings
FIG. 1 is a schematic view of the overall structure of a printing machine body;
FIG. 2 is a schematic view of the printer carriage after hiding a portion of the housing showing the positions of the ink stack support table and the drive mechanism;
FIG. 3 is a schematic view of the cleaning section, i.e., the ink stack section, in the cart;
FIG. 4 is a schematic structural diagram of an ink stack body;
FIG. 5 is an enlarged view of portion A of FIG. 3;
FIG. 6 is a schematic structural view of the lifting mechanism;
FIG. 7 is an enlarged view of portion B of FIG. 6;
FIG. 8 is a flow chart of a method of using the showerhead cleaning mechanism.
In the figure, 1, a printing machine body; 2. a printing press carriage; 21. a spray head; 3. an ink stack support table; 31. an ink stack body; 32. an ink stack platform; 33. an ink pad base plate; 331. a supporting seat; 332. a discharge tank; 333. a waste water discharge channel; 334. a water discharge line; 4. a lifting mechanism; 41. a drive motor; 42. a bidirectional screw rod; 43. twisting the disc; 44. a coupling; 45. a screw fixing plate; 5. a scissor type support frame; 51. a first scissor-type support plate; 52. a second scissor-type support plate; 6. an ink stack backplane; 61. a guide plate; 62. a guide block; 63. a guide bar; 64. a baffle plate; 65. a limiting mechanism; 66. a limit bolt; 67. a screw connecting plate; 68. a rectangular groove; 69. connecting the through grooves; 7. cleaning the tube; 71. an air suction pipe; 72. washing the tube with water; 721. a water inlet pipe; 722. a water outlet pipe; 723. a dip pipe; 724. a first uniform flow pipe; 725. a second uniform flow pipe; 8. scraping a blade; 81. a doctor blade fixing plate; 82. a doctor blade clamp plate; 83. a first waist-shaped through groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the nozzle cleaning mechanism disclosed by the present invention is connected to a printing machine carriage 2 of a printing machine body 1, and can be used for printing of a printer, or printing of cloth, printing of paper, etc.
As shown in fig. 3, the cleaning mechanism structure includes an ink stack support table 3 supporting a plurality of ink stack bodies 31, an elevating mechanism 4 controlling the elevation of the ink stack support table 3, and an ink stack bottom plate 6 supporting the elevating mechanism 4. Wherein seted up a plurality of purge holes on the ink stack brace table 3, every ink stack body 31 all is equipped with the scavenge pipe 7 that passes the purge hole, and scavenge pipe 7 one end and ink stack body 31 intercommunication, the other end communicate in the pump body.
As shown in fig. 3 and 4, the cleaning pipe 7 includes a water cleaning pipe 72 and an air suction pipe 71, the air suction pipe 71 and the water cleaning pipe 72 are both PVC hoses, and the air suction pipe 71 and the water cleaning pipe 72 are both connected to each other and provided with an electromagnetic valve. The end of the air suction pipe 71 far away from the ink stack support table 3 is connected with an air pump, when the nozzle hole on the nozzle 21 is blocked, the water washing pipe 72 is closed under the control of the electromagnetic valve, the lifting mechanism 4 enables the ink stack body 31 to rise and the nozzle 21 to be sealed to form a cavity, then the air pump sucks air to enable the cavity to form negative pressure, waste ink in the nozzle 21 is sucked out and is sucked away along the air suction pipe 71, and therefore the nozzle 21 is dredged.
The washing pipe 72 is divided into three parts, namely a water inlet pipe 721 for providing a clean water source, a water outlet pipe 722 for sucking away water, and a washing pipe 723 directly communicated with the ink stack body 31, and the three pipes are integrally shaped like a Chinese character 'ren'. The water inlet pipe 721 and the water outlet pipe 722 are respectively connected to the water inlet pump and the water outlet pump, the water inlet pipe 721 and the water outlet pipe 722 are respectively provided with an electromagnetic valve, and the electromagnetic valve is positioned at the intersection of the water inlet pipe 721, the water outlet pipe 722 and the immersion cleaning pipe 723.
When the nozzle 21 is not used for a long time or normal printing cannot be performed after cleaning through the air suction pipe 71, and waste ink is ejected, the ink stack body 31 is cleaned by using the water cleaning pipe 72. At this moment, the air suction pipe 71 and the water outlet pipe 722 are closed under the control of the electromagnetic valve, the lifting mechanism 4 is lifted, the ink stack body 31 and the spray head 21 form a sealed cavity, then the water inlet pump is started, water is injected towards the spray head 21 for immersion cleaning, and after the water injection amount reaches a certain amount of water, the water inlet pump is closed, and the water injection amount can be detected through the water flow sensor. After a period of immersion cleaning, the water outlet pipe 722 is opened under the control of the solenoid valve, and the immersion cleaning time can be preset by a user and realized in the circuit through a 555 timer. After the water outlet pipe 722 is opened, the water outlet pump pumps the sewage and the impurities in the washing pipe 72, so that the washing of the spray head 21 is completed.
In order to better clean the spray head 21, the soaking pipe 723 is divided into a first uniform flow pipe 724 and a second uniform flow pipe 725, and main parts of the first uniform flow pipe 724, the second uniform flow pipe 725 and the soaking pipe 723 are connected through a tee pipe. First even flow tube 724 and second even flow tube 725 communicate respectively in the different positions of ink stack body 31, when intaking or going out water, can intake simultaneously or go out water simultaneously to when intaking, not only abluent more even, can be through the collision each other of two streams moreover, realize the cross-flow scouring to shower nozzle 21, reach better cleaning performance. And when going out water, go out water simultaneously through two pipes, also can make the better outflow of the solid impurity in aquatic, the filth that remains in the ink stack body 31 is still less.
The air suction pipe 71 is also divided into two uniform flow pipes, as with the soaking pipe 723, and when suction is performed, the two air flows can suck the spray head 21 from different directions, so that the air flows are disturbed, and adhered firmer dirt is washed and adsorbed.
As shown in fig. 3 and 5, a discharge groove 332 is formed in the top surface of the ink stack support table 3, a plurality of projections are formed at positions where the discharge groove 332 is not formed, a part of the projections is referred to as a support base 331, and when the waste water flows to the ink stack support table 3, the waste water flows between the support base 331 and the remaining projections. The stack bodies 31 correspond to the supporting seats 331 one to one, and are connected to the tops of the supporting seats 331 through bolts, the discharge slots 332 surround each of the stack bodies 31, and when waste water and waste ink accidentally flow out of the stack bodies 31 or the nozzles 21 perform preliminary spraying, the waste water and waste ink can flow into the discharge slots 332 without staying at the stack bodies 31.
The drain tank 332 is opened with a waste water drain channel 333 downwards, a drain line 334 extending into the waste water drain channel 333 is arranged in the drain tank 332, and the drain line 334 is made of fiber fabric and is uniformly laid along the drain tank 332 without interruption. When the waste water and the waste ink contact the drain line 334, the capillary tubes of the slit holes on the surface and inside of the fabric absorb water and ink by capillary action until the drain line 334 becomes more and more wet, and the portion of the drain line 334 in the waste water discharge passage 333 becomes wet as well even if it fails to absorb water directly. At this time, the waste water in the drain line 334 in the waste water discharge channel 333 flows away along the waste water discharge channel 333 under the action of gravity, and the new waste water is replenished under the action of wetting while the old waste water flows away, so that the accumulated water in the discharge groove 332 is continuously discharged under the cooperation of gravity, wetting and capillary action, and the discharge groove 332 is ensured not to have accumulated water and waste ink, but only one wetted drain line 334 is provided. The drainage line 334 is used for drainage, so that the drainage groove 332 can realize drainage of accumulated water only by keeping horizontal without inclined arrangement, the manufacturing process is greatly simplified, and the manufacturing cost is saved.
A scraping blade 8 for cleaning the spray head 21 is further arranged on one side of the ink stack supporting platform 3, the spray head 21 needs to use a scraping blade to clean redundant ink on the spray head 21 in the printing process and after printing is finished, the ink is also discharged along the discharge groove 332 and the water discharge line 334, and the waste water discharge channel 333 is arranged at the position, close to the scraping blade 8, of the ink stack supporting platform 3. Through the design of scraper blade, can realize partly useless waste ink treatment equally, cooperation ink stack body 31 reaches better useless waste ink and gets rid of the effect.
The wiper blades 8 are connected through wiper blade fixing plates 81, the wiper blade fixing plates 81 are L-shaped, in order to adjust the positions of the wiper blade fixing plates 81 and thus indirectly adjust the positions of the wiper blades 8, first waist-shaped through grooves 83 are separately formed in horizontal portions of the wiper blade fixing plates 81, and the first waist-shaped through grooves 83 penetrate through the wiper blade fixing plates 81 in the gravity direction and extend in the working direction of the spray head 21. The ink stack support table 3 is provided with a threaded hole under the first waist-shaped through groove 83, the threaded hole projects in the first waist-shaped through groove 83, and a bolt is connected with the threaded hole in a threaded manner. When the bolt is not used, the scraper fixing plate 81 can move along the length direction of the first waist-shaped through groove 83, when the bolt is used, the bolt passes through the first waist-shaped through groove 83 and is screwed in the threaded hole, and at the moment, the nut of the bolt, the scraper 8 and the scraper fixing plate 81 are abutted tightly, so that the scraper fixing plate 81 is locked.
In order to adjust the working height of the scraping blade 8 in the vertical direction, the scraping blade 8 is provided with a second waist-shaped through groove which penetrates through the scraping blade 8 along the thickness direction of the scraping blade 8 and extends along the gravity direction. One side butt of doctor-bar 8 is equipped with doctor-bar splint 82 in the vertical part of doctor-bar fixed plate 81, the opposite side of doctor-bar 8, and doctor-bar splint 82 and doctor-bar fixed plate 81 all are equipped with the through-hole of projection in the logical inslot of second waist type, wear to be equipped with the bolt in the through-hole, and the end threaded connection is worn out to the screw rod of bolt has the nut. When the bolt and the nut are not screwed tightly, the scraping blade 8 can slide along the length direction of the second waist-shaped through groove; when the bolt is screwed with the nut, the nut of the bolt is abutted against the wiper clamping plate 82, and the nut is abutted against the wiper fixing plate 81, so that the wiper 8 is abutted and locked.
As shown in fig. 6, the ink stack support table 3 includes an ink stack platform 32 directly connected to the elevating mechanism 4, and an ink pad bottom plate 33 (fig. 3) connected above the ink stack platform 32 and directly supporting the ink stack body 31, and the ink pad bottom plate 33 is connected to the ink stack platform 32 by bolts.
The lifting mechanism 4 comprises a driving motor 41 connected to the ink stack bottom plate 6 and a bidirectional screw rod 42 connected to the driving motor 41, wherein the driving motor 41 is connected to the ink stack bottom plate 6 through a motor fixing plate, two ends of the bidirectional screw rod 42 are respectively provided with a positive thread and a negative thread, the positive thread and the negative thread are respectively provided with a screw fixing plate 45 in threaded connection, the screw fixing plates 45 are abutted to the ink stack bottom plate 6, and when the bidirectional screw rod 42 rotates, the two screw fixing plates 45 move oppositely or back to back. One end of the bidirectional screw rod 42 is connected with the driving motor 41, and an output shaft of the driving motor 41 is connected with the bidirectional screw rod 42 through a coupler 44; the other end of the bidirectional screw rod 42 is provided with a twisting disc 43, and when the driving motor 41 is damaged, the manual driving of the bidirectional screw rod 42 can be realized by rotating the twisting disc 43.
The screw fixing plates 45 are upwards connected with the scissor type support frame 5, the bottom of the scissor type support frame 5 is connected with the two screw fixing plates 45, the top of the scissor type support frame 5 is connected with the ink stack platform 32, and when the two screw fixing plates 45 move relatively, the scissor type support frame 5 drives the ink stack platform 32 to ascend or descend. Specifically, the scissor type support frame 5 comprises a first scissor type support plate 51 with a bottom end rotatably connected to the screw fixing plate 45 and a top end rotatably connected to the ink stack platform 32, and a second scissor type support plate 52 with a bottom end rotatably connected to the ink stack bottom plate 6 and a top end rotatably connected to the middle section of the first scissor type support plate 51, wherein each first scissor type support plate 51 and each second scissor type support plate 52 are called a set of support plate groups, and two ends of each screw fixing plate 45 are connected with a set of support plate groups.
When the driving motor 41 drives the bidirectional screw rod 42 to rotate, so that the two screw fixing plates 45 move in opposite directions, the ends of the first scissors-type supporting plate 51 connected to the screw fixing plates 45 are close to each other, and at this time, the first scissors-type supporting plate 51 rotates with the connecting point of the first scissors-type supporting plate 51 and the second scissors-type supporting plate 52 as the center of a circle, so that the height of the end of the first scissors-type supporting plate 51 connected to the ink stack platform 32 is continuously reduced, and the effect of reducing the height of the ink stack. In the process of lifting and stopping the ink stack platform 32, the second scissor-type support plates 52 both have the effect of supporting the first scissor-type support plate 51, so that the first scissor-type support plate 51 is connected and limited by the second scissor-type support plate 52 and the screw fixing plate 45, and a stable supporting effect is achieved.
In order to further enhance the stability of the screw fixing plate 45 and prevent the screw fixing plate from deflecting, guide plates 61 are arranged at both ends of the bidirectional screw rod 42, the guide plates 61 are fixed on the ink stack bottom plate 6, and the rotation connection point of the second scissor-type support plate 52 and the ink stack bottom plate 6 is located on the guide plates 61. Each guide plate 61 is composed of two guide blocks 62, two guide blocks 62 are respectively arranged on two sides of the bidirectional screw rod 42, and the bidirectional screw rod 42 projects in a gap between the two guide blocks 62. Two guide rods 63 are connected to the two guide blocks 62 on the same side of the bidirectional screw rod 42, so that four guide rods 63 are connected to two sides of the bidirectional screw rod 42, and each guide rod 63 is parallel to the axis of the bidirectional screw rod 42. The screw fixing plate 45 is provided with a guide hole matched with the guide rod 63, and the guide rod 63 penetrates through the guide hole and is abutted against the inner wall of the guide hole, so that the screw fixing plate 45 can only move along the axial direction of the guide rod 63. In order to further enhance the stability of the screw fixing plate 45, the ink stack bottom plate 6 is connected with a blocking piece 64 at both ends of the screw fixing plate 45, and both ends of the screw fixing plate 45 are respectively abutted against one blocking piece 64 and slide along the length direction of the blocking piece 64.
In order to prevent the ink stack platform 32 from being lifted beyond the range under the action of the lifting mechanism 4, which results in the failure of the normal operation of the nozzle 21, a limiting mechanism 65 is arranged at one end of the bidirectional screw rod 42 of the ink stack bottom plate 6. The limiting mechanism 65 includes a limiting plate connected to the ink stack bottom plate 6, and the limiting plate and the guide plate 61 can be the same plate. The limiting plate is provided with a threaded through hole parallel to the axial direction of the bidirectional screw rod 42, the threaded through hole is connected with a limiting bolt 66 in a threaded manner, a screw rod of the limiting bolt 66 penetrates through the limiting plate and is positioned on the movement track of the screw fixing plate 45, when the screw fixing plate 45 moves, the lowest position of the ink stack platform 32 is the position when the two screw fixing plates 45 abut against each other, and the highest position of the ink stack platform 32 is the position when the screw fixing plate 45 abuts against the limiting bolt 66. The position of the screw of the limit bolt 66 can be adjusted by screwing the limit bolt 66, and the deeper the limit bolt 66 is screwed, the easier the screw fixing plate 45 abuts against the limit bolt 66, and the lower the maximum height of the ink stack platform 32 is.
When carrying out the scope restriction, only need be spacing with a screw fixation plate 45, just can realize spacing to ink stack platform 32, and in order to be better spacing to this screw fixation plate 45, stop gear 65 is equipped with two sets ofly altogether, and two sets of stop gear 65 projections are at the both ends of same screw fixation plate 45.
As shown in fig. 6 and 7, when the bidirectional screw rod 42 is used to drive the screw fixing plate 45 to move, in order to more conveniently install and debug the screw fixing block, the screw fixing plate 45 is divided into a sliding portion, a screw thread portion in threaded fit with the bidirectional screw rod 42, and a screw connection plate 67 connecting the screw thread portion and the sliding portion, wherein the sliding portion is a main body of the screw fixing plate 45, a rectangular groove 68 is dug at a position where the sliding portion is connected with the bidirectional screw rod 42, and the screw thread portion is a hexagon nut abutting against an inner wall of the rectangular groove 68 and connected with the bidirectional screw rod 42.
The cross section of the screw connecting plate 67 is in an inverted L shape, the top surface of the screw connecting plate 67 is horizontally arranged and abuts against the right upper side of the hexagonal nut to seal the top surface of the rectangular groove 68, and the top surface of the screw connecting plate 67 is matched with the inner wall of the rectangular groove 68 to tightly abut against the hexagonal nut, so that the hexagonal nut cannot rotate relative to the rectangular groove 68 and cannot be separated from the rectangular groove 68; the other side of the screw connecting plate 67 is vertically arranged and abuts against the side wall of the sliding portion, the side face of the rectangular groove 68 is sealed, meanwhile, the connecting through groove 69 is formed in the vertical face of the screw connecting plate 67, the screw fixing plate 45 is provided with a threaded hole projected in the connecting through groove 69, the connecting through groove 69 is penetrated through the tightening bolt and screwed in the threaded hole, and the tightening of the nut of the tightening bolt, the screw connecting plate 67 and the screw fixing plate 45 is achieved. Connect logical groove 69 along its length intercommunication outside screw connecting plate 67 for when holding tightly the bolt and unscrewing, just can directly take off screw connecting plate 67, further made things convenient for the dismouting to the screw fixed block.
Example two: a method of using a spray head cleaning mechanism, as shown in fig. 8, comprising the steps of:
s1, starting the driving motor 41, and lifting the ink stack supporting table 3 by the scissor type supporting frame 5 until the ink stack body 31 abuts against the spray head 21 to form a closed cavity;
s2, judging whether water washing is needed, if yes, entering the next step, and if not, turning to S6;
s3, sealing the air suction pipe 71 and the water outlet pipe 722, starting the water inlet pump, and injecting water towards the spray head 21 for immersion cleaning;
s4, detecting the water injection amount of the water inlet pump, and closing the water inlet pump after the water amount reaches the required water amount;
s5, detecting the immersion cleaning time, starting the water pump after the immersion cleaning time reaches the required time, and closing the water pump after absorbing the water for a period of time;
s6, closing the water inlet pipe 721 and the water outlet pipe 722, starting the air pump, and closing the air pump after sucking for a period of time;
and S7, starting the driving motor 41, resetting the ink stack supporting table 3 and ending.
Specifically, when judging whether water washing is needed, the shutdown time length needs to be calculated according to the starting time and the real-time of the last driving motor 41, when the shutdown time length exceeds a threshold, water washing is performed, and when the shutdown time length is lower than the threshold, water washing is not performed; the threshold value is preset by a worker, and a test can be carried out according to the actual drying and solidifying speed of the ink in a factory so as to achieve a more accurate numerical value; it is also possible to input a conventional numerical value as the threshold value according to the type of ink.
When the water inlet pump is used for injecting water, the water flow sensor can be used for detecting the water amount, and when the water amount exceeds a threshold value, the water inlet pump is stopped; the threshold value is calculated by the worker according to the size and type of the head 21 and is set in advance.
When the water suction pump is used for sucking water and the air pump is used for sucking air, the suction time length is calculated by workers according to the size and the type of the spray head 21 and is preset.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a shower nozzle clearance mechanism, includes ink stack body (31) with shower nozzle (21) one-to-one, supports ink stack brace table (3) and the elevating system (4) that drive ink stack brace table (3) go up and down of ink stack, its characterized in that: the lifting mechanism (4) comprises a driving motor (41) connected to the ink stack bottom plate (6) and a bidirectional screw rod (42) connected to the driving motor (41), wherein both ends of the bidirectional screw rod (42) are in threaded connection with screw fixing plates (45), the screw fixing plates (45) are abutted to the ink stack bottom plate (6), and when the bidirectional screw rod (42) rotates, the two screw fixing plates (45) move in the opposite direction or in the opposite direction; the ink stack support platform is characterized in that the screw fixing plates (45) are connected with a shear type support frame (5), the bottom of the shear type support frame (5) is connected with the two screw fixing plates (45), the top of the shear type support frame (5) is connected with the ink stack support platform (3), and when the two screw fixing plates (45) move relatively, the shear type support frame (5) drives the ink stack support platform (3) to ascend or descend; ink stack body (31) is along with ink stack brace table (3) simultaneous movement, and every ink stack body (31) bottom all communicates there is scavenge pipe (7), scavenge pipe (7) are including water washing pipe (72) that are used for business turn over water and air suction pipe (71) that are used for bleeding, and wherein the one end that ink stack body (31) were kept away from in water washing pipe (72) is connected with the water pump, and the one end that ink stack body (31) were kept away from in air suction pipe (71) is connected with the air pump.
2. The spray head cleaning mechanism of claim 1, wherein: ink stack bottom plate (6) are equipped with stop gear (65) in the one end of two-way lead screw (42), stop gear (65) are including connecting in the limiting plate of ink stack bottom plate (6), set up on the limiting plate and be on a parallel with two-way lead screw (42) axial screw thread through-hole, screw thread through-hole female connection has spacing bolt (66), and the screw rod of spacing bolt (66) passes the limiting plate and is located the movement track of screw fixation board (45).
3. The spray head cleaning mechanism of claim 1, wherein: the washing pipe (72) comprises a washing pipe (723) directly communicated with the ink stack body (31), a water inlet pipe (721) for supplying water to the washing pipe (723) and a water outlet pipe (722) for pumping water in the washing pipe (723), the water inlet pipe (721) and the water outlet pipe (722) are respectively connected with different water pumps, valves are arranged on the water inlet pipe (721) and the water outlet pipe (722), and the valves are located at the intersection of the water inlet pipe (721), the water outlet pipe (722) and the washing pipe (723).
4. A spray head cleaning mechanism according to claim 3, wherein: the connection part of the soaking and washing pipe (723) and the ink stack body (31) is divided into a first uniform flow pipe (724) and a second uniform flow pipe (725), and the first uniform flow pipe (724) and the second uniform flow pipe (725) are respectively connected to different positions of the ink stack body (31).
5. The spray head cleaning mechanism of claim 1, wherein: the ink stack support platform (3) is provided with a discharge groove (332) on the top surface in an excavated mode, a plurality of bulges are formed at positions where the discharge groove (332) is not excavated, a part of the bulges is called as a support seat (331), and the ink stack bodies (31) correspond to the support seat (331) one by one and are connected to the top of the support seat (331); the discharge groove (332) is provided with a waste water discharge channel (333) downwards.
6. The spray head cleaning mechanism of claim 5, wherein: the drainage groove (332) is internally provided with a drainage line (334) extending into the waste water discharge channel (333), and the drainage line (334) is made of water-absorbing materials and is continuously and uniformly laid along the drainage groove (332).
7. A method of using a spray head cleaning mechanism comprising all the features of claims 1 to 6, characterised by the steps of:
s1, starting a driving motor (41), and lifting the ink stack supporting table (3) by the scissor type supporting frame (5) until the ink stack body (31) is abutted to the spray head (21) to form a closed cavity;
s2, judging whether water washing is needed, if yes, entering the next step, and if not, turning to S6;
s3, sealing the air suction pipe (71) and the water outlet pipe (722), starting the water inlet pump, and injecting water towards the spray head (21) for immersion cleaning;
s4, detecting the water injection amount of the water inlet pump, and closing the water inlet pump after the water amount reaches the required water amount;
s5, detecting the immersion cleaning time, starting the water pump after the immersion cleaning time reaches the required time, and closing the water pump after absorbing the water for a period of time;
s6, closing the water inlet pipe (721) and the water outlet pipe (722), starting the air pump, and closing the air pump after sucking for a period of time;
and S7, starting the driving motor (41), resetting the ink stack supporting table (3), and ending.
8. The method of using a spray head cleaning mechanism of claim 7, wherein: in step S2, calculating the shutdown time according to the starting time and the real-time of the last driving motor (41), when the shutdown time exceeds a threshold value, washing, and when the shutdown time is lower than the threshold value, not washing; the threshold value is preset by the operator.
9. The method of using a spray head cleaning mechanism of claim 7, wherein: in step S4, detecting the water quantity by using a water flow sensor, and stopping the water inlet pump when the water quantity exceeds a threshold value; the threshold value is calculated by the worker according to the size and type of the spray head (21) and is preset.
10. The method of using a spray head cleaning mechanism of claim 7, wherein: the suction time of the water pump in the step S5 and the suction time of the air pump in the step S6 are calculated by the staff according to the size and the type of the spray head (21) and are preset.
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| CN202010007084.7A CN111016439A (en) | 2020-01-03 | 2020-01-03 | Spray head cleaning mechanism and application method thereof |
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