CN113370644A - Screen printing machine with cleaning device and cleaning method - Google Patents

Screen printing machine with cleaning device and cleaning method Download PDF

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Publication number
CN113370644A
CN113370644A CN202110716287.8A CN202110716287A CN113370644A CN 113370644 A CN113370644 A CN 113370644A CN 202110716287 A CN202110716287 A CN 202110716287A CN 113370644 A CN113370644 A CN 113370644A
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CN
China
Prior art keywords
roller
silk screen
wiping
rack
screen plate
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Granted
Application number
CN202110716287.8A
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Chinese (zh)
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CN113370644B (en
Inventor
陈千
秦仕城
张�杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Saier Printing Equipment Co.,Ltd.
Original Assignee
Jiangsu Saier Plate Making Co ltd
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Application filed by Jiangsu Saier Plate Making Co ltd filed Critical Jiangsu Saier Plate Making Co ltd
Priority to CN202110716287.8A priority Critical patent/CN113370644B/en
Publication of CN113370644A publication Critical patent/CN113370644A/en
Application granted granted Critical
Publication of CN113370644B publication Critical patent/CN113370644B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
    • B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/10—Screen printing machines characterised by their constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/244—Rewinding the cleaning cloth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/26—Spraying devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)

Abstract

The invention discloses a screen printer with a cleaning device, which comprises a printing mechanism, wherein the printing mechanism comprises mounting arms connected to two ends of a screen plate; the silk screen plate comprises an inner frame and an outer frame; the spraying assembly stretches across the outer frame and is connected to the outer frame in a sliding manner; a switching component for driving the spraying component to switch between a working state and a standby state is arranged on the outer frame; the continuous wiping component is used for wiping the silk screen and comprises a winding roller, a recovery roller, a first guide roller and a press roller; the arrangement of the spraying component and the continuous wiping component can clean the blocked silk screen plate, so that the time for disassembling the silk screen plate is saved, the purchase of an additional cleaning device is avoided, and the cost is reduced; the spray assembly utilizes the cleaning liquid to spray and wash the silk screen plate, the continuous cleaning assembly can clean and clean the silk screen plate, and the spray assembly can utilize hot clean gas to dry the silk screen plate after cleaning, so that the cleaning effect of the silk screen plate is effectively guaranteed, and the silk screen plate is prevented from being damaged during cleaning.

Description

Screen printing machine with cleaning device and cleaning method
Technical Field
The invention relates to the technical field of screen printers, in particular to a screen printer with a cleaning device and a cleaning method.
Background
The screen printing is also called silk screen printing, which means that a screen is used as a plate base, a screen printing plate is manufactured by a photosensitive plate making method, printing is carried out by using the basic principle that part of meshes of an image-text part in the screen printing plate can penetrate ink and part of meshes of a non-image-text part can not penetrate ink, in the printing process, ink is poured into one end of the screen printing plate, a scraper plate is used for applying certain pressure to the ink part on the screen printing plate, meanwhile, the scraper plate moves towards the other end of the screen printing plate at a constant speed, and the ink is extruded onto a printing stock from the meshes of the image-text part by the scraper plate in the moving process, so that the process of transferring the pattern on the printing plate onto the printing stock is realized.
The traditional screen printer is not provided with a cleaning device, when impurities, dust or ink are remained on a screen printing plate to block meshes, the printing of characters and patterns is unclear, incomplete or even cannot be smoothly printed on the surface; chinese patent publication No. CN212555435U discloses a screen printing machine with a cleaning device, which comprises a fixing device, a screen printing machine body and an auxiliary device, wherein an automatic telescopic rod and a universal wheel are installed, so that the movement and the transportation of equipment are facilitated, the consumption of manpower is reduced, the flexibility is high, through arranging a first sliding block and a sliding groove, an ink return scraper and a printing scraper can move left and right, a movable crawler is arranged, a movable arm can move up and down, the effect of adjusting the position randomly is achieved, the printing efficiency is improved, the cleaning device is installed, a screen printing plate can be scrubbed through a mechanical arm, the screen printing plate is cleaner, and the printing efficiency of a screen printing product is further improved; however, in the use process of the scheme, the dust removing brush is in contact with the screen printing plate, and the screen is easily damaged due to the rotary friction of the dust removing brush.
Disclosure of Invention
The invention mainly solves the technical problems that: the screen printing machine with the cleaning device and the cleaning method are good in cleaning effect and capable of avoiding damage to the screen printing plate.
In order to solve the main technical problems, the following technical scheme is adopted:
a screen printing machine provided with a cleaning device, comprising:
the platform is used for placing a to-be-printed product and supporting all parts;
the printing mechanism is arranged on the platform and comprises mounting arms connected to two ends of the silk screen plate; the silk screen plate comprises an inner frame for fixing a silk screen and an outer frame sleeved outside the inner frame; mounting through holes are formed in the two opposite sides of the inner frame;
the spraying assembly is communicated with outside fluid and is used for spraying or drying the silk screen; the spraying assembly stretches across the outer frame and is connected to the outer frame in a sliding manner; a switching component for driving the spraying component to switch between a working state and a standby state is arranged on the outer frame;
the continuous wiping component is used for wiping the silk screen and comprises a winding roller, a recovery roller, a first guide roller and a press roller; a first guide roller is arranged in each mounting through hole; the winding roller is used for placing continuous and cuttable wiping cloth, and the recovery roller is used for collecting used wiping cloth; the winding roller and the recovery roller are both positioned below the silk screen plate and are respectively positioned at two opposite sides of the inner frame; the press roller is arranged above the silk screen plate through a lifting assembly and is used for pressing the wiping cloth to be in contact with the silk screen; the recovery roller is connected with a power drive to drive the wiping cloth to convey forwards; when the spraying assembly is in a standby state, the wiping cloth is fed to the recovery roller from the winding roller through the space between the first guide roller and the pressing roller.
Preferably, the lifting assembly comprises a lifting plate, a screw rod and a connecting plate; the connecting plate is arranged on the mounting arm; the support of the compression roller penetrates through the connecting plate and is arranged on the lifting plate; the lifting plate is arranged on the screw rod; the lead screw is connected to the connecting plate and drives the lifting plate to lift under the action of the motor.
Preferably, the connecting plate is slidably connected to the mounting arm and connected to the transverse cylinder; the compression roller can transversely translate under the driving of the transverse air cylinder.
Preferably, the continuous wiping assembly further comprises two second guide rollers; one of the second guide rollers is positioned between the winding roller and one of the first guide rollers, and the other second guide roller is positioned between the recovery roller and the other first guide roller; and the second guide roller, the winding roller and the recovery roller are all arranged on the support cabinet of the platform through a support.
Preferably, the recovery roller and the first guide roller close to the winding roller are made of magnetic materials; the recovery roller and one first guide roller are respectively provided with a magnetic strip which is detachably arranged; when the continuous wiping component works, the magnetic strip clings the end part of the wiping cloth to the surface of the recovery roller; when the continuous wiping component is in standby, the magnetic strip enables the end part of the wiping cloth to be tightly attached to the surface of the first guide roller close to the winding roller.
Preferably, the spraying assembly comprises a long pipe and a connecting frame; the long pipe transversely spans the outer frame through the connecting frame, and the connecting frame is connected with the outer frame in a sliding manner; the long pipe is connected with a plurality of branch pipes distributed along the axis of the long pipe; the moving direction of the long pipe and the moving direction of the wiping cloth are positioned on the same straight line; the long pipe can rotate relative to the connecting frame; the two end faces of the long pipe are connected with rotary joints; one of the rotary joints is connected with the cleaning liquid through a connecting pipe, and the other rotary joint is connected with the hot clean gas through a connecting pipe; a first control valve is arranged on the connecting pipe connected with the cleaning liquid, and a second control valve is arranged on the connecting pipe connected with the hot clean gas; the first control valve is started to open before the continuous wiping component works; the second control valve is activated to open after the continuous wiping assembly is operated.
Preferably, the switching assembly comprises a gear mounted at the end of the long pipe, a first rack and a second rack which are mounted on the outer frame and distributed in a straight line; the first rack is close to the winding roller, and the second rack is close to the recovery roller; the gear is meshed with the first rack or the second rack; the lengths of the first rack and the second rack are matched with the rotation of the gear by 180 degrees.
A cleaning method of a screen printing machine comprises the following steps,
s1: when cleaning is started, the printing mechanism is far away from the silk screen plate, the silk screen plate is far away from the platform, and the printing mechanism stops working;
s2: opening the first control valve to enable the cleaning liquid to be closed after the long pipe is filled with the cleaning liquid; the long pipe is driven by the connecting frame to translate, when the long pipe passes through the first rack, the gear rotates 180 degrees, the branch pipe is changed from vertical upward to vertical downward, the spraying assembly is switched from a standby state to a working state, and the cleaning liquid is dripped onto the wire mesh through the branch pipe under the action of gravity; along with the continuous translation of the connecting frame, the gear reaches the second rack, the gear rotates 180 degrees again at the moment, the branch pipe is changed from vertical downward to vertical upward at the moment, and the spraying assembly is changed from a working state to a standby state;
s3: pulling out the end part of the wiping cloth from the position between the first guide roller and the press roller and winding the end part of the wiping cloth on the recovery roller, pressing the end part of the wiping cloth on the surface of the recovery roller by using the magnetic strip, starting a motor, and adjusting the distance between the press roller and the screen plate to enable the wiping cloth to be tightly attached to the surface of the screen plate; starting power drive to enable the recovery roller to drive the wiping cloth to be conveyed forwards, and wiping and cleaning the silk screen plate in the conveying process; after the wiping cloth is wiped clean, cutting off the wiping cloth and enabling the end part of the wiping cloth to be attached to the surface of the first guide roller close to the winding roller by the magnetic stripe again;
s4: the second control valve is opened, the long pipe moves in the reverse direction under the action of the connecting frame, when the long pipe passes through the second rack, the gear rotates 180 degrees, at the moment, the branch pipe is changed from vertical upward to vertical downward, the spraying assembly is switched from a standby state to a working state, hot clean gas is sprayed to the surface of the silk screen plate from the branch pipe, and the silk screen is dried; along with the continuous translation of link, the gear reaches first rack, and the gear rotates 180 once more after meshing with first rack this moment, and the branch pipe becomes vertical upwards by vertical downwards, and spray assembly becomes standby state by operating condition, and the long tube gets back to initial position, and the second control valve is closed, and the clearance is accomplished.
Compared with the prior art, the screen printing machine has the following advantages when being applied to the screen printing machine:
(1) the screen printing machine is provided with the spraying assembly and the continuous wiping assembly, and the blocked screen printing plate can be cleaned, so that the time for disassembling the screen printing plate is saved, the purchase of an additional cleaning device is avoided, the cost is reduced, and the printing efficiency is improved.
(2) The spray assembly utilizes the cleaning liquid to spray and wash the silk screen plate, the spray-washing back is cleaned the subassembly in succession and can be cleaned the further clearance of silk screen plate, cleans the back, and the spray assembly can utilize hot clean gas to dry the silk screen plate to the clearance effect of effectual assurance silk screen plate can avoid causing the damage to the silk screen plate simultaneously again.
(3) The continuous wiping component can continuously and semi-automatically wipe the silk screen plate, so that the labor is saved and the wiping effect is good; the spraying assembly comprises a long pipe and a supporting frame, the supporting frame drives the long pipe to move left and right, two ends of the long pipe are communicated with the first control valve and the second control valve respectively, and the spraying assembly can realize switching between spraying and drying and is simple to operate by controlling the opening of the first control valve and the second control valve.
(4) The switching assembly comprises a gear arranged at the end part of the long pipe, and a first rack and a second rack which are arranged on the outer frame and distributed in a straight line; the automatic switching between the working state and the standby state of the spraying assembly is realized by the movement of the connecting frame, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic view of the overall structure of the continuous wiping assembly when in an operative condition, with the pressure roller not in place for clarity of illustration;
FIG. 2 is an enlarged schematic view of the lifting assembly;
fig. 3 is a schematic top view of the screen plate, and the wiping cloth is omitted for clarity.
In the figure: the printing device comprises a platform 1, a support cabinet 101, a printing mechanism 2, a mounting arm 21, a screen printing plate 3, an inner frame 31, an outer frame 32, a mounting through hole 33, a spraying assembly 4, a long pipe 41, a connecting frame 42, a branch pipe 43, a rotary joint 44, a connecting pipe 45, a first control valve 46, a second control valve 47, a switching assembly 5, a gear 51, a first rack 52, a second rack 53, a continuous wiping assembly 6, a winding roller 61, a recovery roller 62, a power drive 621, a compression roller 63, a first guide roller 64, a second guide roller 65, a magnetic strip 66, a lifting assembly 7, a lifting plate 71, a screw rod 72, a connecting plate 73, a motor 74 and a transverse cylinder 75.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.
The first embodiment,
Referring to fig. 1-3, a screen printer with a cleaning device includes a platform 1, a printing mechanism 2, a spraying assembly 4, and a continuous wiping assembly 6; the printing machine comprises a platform 1, a support cabinet 101, a printing machine and a printing machine, wherein the platform 1 is used for placing a to-be-printed product and supporting various parts; the printing mechanism 2 is a main structure for printing; a spray assembly 4 and a continuous wiping assembly 6 are used to clean the screen 3.
The printing mechanism 2 is arranged on the platform 1 and comprises installation arms 21 connected with two ends of the silk screen plate 3; the mounting arm 21 and the screen plate 3 are mounted together by a fastener, the mounting arm 21 is in a vertical state, and the screen plate 3 is in a horizontal state.
The screen plate 3 comprises an inner frame 31 for fixing the screen and an outer frame 32 sleeved outside the inner frame 31; the inner frame 31 and the outer frame 32 are equal in height, the left side and the right side of the inner frame 31 are provided with mounting through holes 33, and the length extension direction of the mounting through holes 33 is the front-back direction in the drawing.
The spraying assembly 4 is communicated with external hot clean gas or cleaning liquid, and is used for spraying the silk screen when the spraying assembly 4 is communicated with the external cleaning liquid and drying the silk screen when the spraying assembly 4 is communicated with the external hot clean gas; the spray assembly 4 spans the outer frame 32 and is connected to the outer frame 32 in a sliding manner; a switching component 5 for driving the spraying component 4 to switch between a working state and a standby state is arranged on the outer frame 32; normally, when the spraying assembly 4 is in an operating state, a liquid receiving tank for containing waste liquid or a liquid absorbing cloth is placed on the platform 1.
The spraying assembly 4 comprises a long pipe 41 and a connecting frame 42; the long tube 41 transversely spans the outer frame 32 through the connecting frame 42, and the connecting frame 42 is slidably connected with the front side and the rear side of the outer frame 32; the long pipe 41 is connected with a plurality of branch pipes 43 distributed along the axis of the long pipe 41, the branch pipes 43 are welded on the long pipe 41, the long pipe 41 is communicated with the branch pipes 43, and the axial direction of the branch pipes 43 is consistent with the radial direction of the long pipe 41; the end part of the long pipe 41 is rotatably connected with the connecting frame 42 through a bearing; two end faces of the long pipe 41 are connected with rotary joints 44; one of the rotary joints 44 is connected with the cleaning liquid through a connecting pipe 45, and the other rotary joint 44 is connected with the hot clean gas through a connecting pipe 45; a first control valve 46 is arranged on the connecting pipe 45 connected with the cleaning liquid, and a second control valve 47 is arranged on the connecting pipe 45 connected with the hot cleaning gas; the first control valve 46 is activated to open before the continuous wiping assembly 6 is operated; and the second control valve 47 is started to be opened after the continuous wiping component 6 works, namely after the spraying component 4 sprays the screen printing plate 3, the continuous wiping component 6 wipes the screen printing plate, and after the screen printing plate is wiped, the spraying component 4 dries the screen printing plate.
The switching assembly 5 comprises a gear 51 mounted at the end of the long tube 41, a first rack 52 and a second rack 53 mounted on the outer frame 32 and distributed in a straight line; the first rack 52 is close to the winding roller 61, and the second rack 53 is close to the recovery roller 62; the gear 51 can be meshed with a first rack 52, and the gear 51 can also be meshed with a second rack 53; the lengths of the first rack 52 and the second rack 53 are matched with the rotation of the gear 51 by 180 degrees, namely, after the first rack 52 is meshed with the gear 51 for transmission, the gear 51 rotates by 180 degrees, after the second rack 53 is meshed with the gear 51 for transmission, the gear 51 also rotates by 180 degrees, and the switching component 5 is matched with the support frame in a moving way, so that automatic switching is realized.
The continuous wiping component 6 is used for wiping the silk screen and comprises a winding roller 61, a recovery roller 62, a first guide roller 64 and a press roller 63; a first guide roller 64 is installed in each installation through hole 33; the axis of the first guide roller 64 coincides with the longitudinal extension direction of the mounting through-hole 33; the highest point of the first guide roller 64 is slightly higher than the surface of the inner frame body, or the highest point of the first guide roller 64 is flush with the inner frame body; the axial length of the first guide roll 64 is adapted to the length of the web in this direction; the winding roller 61 is used for initially placing continuous and cutting wiping cloths, and the recovery roller 62 is used for collecting used wiping cloths; the winding roller 61 and the recovery roller 62 are both positioned below the silk screen plate 3 and are respectively positioned at the left side and the right side of the inner frame 31 together with the recovery roller 62, and the rotation of the winding roller 61 and the recovery roller 62 does not influence the work of the printing mechanism 2; the press roller 63 is arranged above the silk screen plate 3 through the lifting assembly 7 and is used for pressing the wiping cloth to be in contact with the silk screen; when the spraying assembly 4 is in a standby state, the wiping cloth is fed from the winding roller 61 to the recovery roller 62 through the space between the first guide roller 64 and the pressing roller 63, when the spraying assembly 4 is in the standby state, the continuous wiping assembly 6 is started to work, and the wiping cloth is fed to the recovery roller 62 from the winding roller 61 through the space between the first guide roller 64 and the pressing roller 63; the moving direction of the wiping cloth and the moving direction of the long pipe 41 are positioned on the same straight line; the recovery roller 62 is connected with a power drive 621, and after the recovery roller 62 rotates, the cleaning cloth is driven to wipe the surface of the silk screen, so that the silk screen plate 3 is cleaned; the wiping cloth can be cut off manually or by means of a cutting unit (not shown), and when the spraying unit 4 is in operation, the wiping cloth does not cover the surface of the screen plate 3.
The lifting assembly 7 comprises a lifting plate 71, a screw rod 72 and a connecting plate 73; the connecting plate 73 is mounted on the mounting arm 21; the bracket of the press roller 63 passes through the connecting plate 73 and is arranged on the lifting plate 71, and the bracket of the press roller 63 can lift relative to the connecting plate 73; the lifting plate 71 is arranged on a screw rod 72; the screw 72 is connected to the connecting plate 73 and drives the lifting plate 71 to lift under the action of the motor 74; in order to avoid that the pressure roller 63 affects the operation of the printing mechanism 2, said connecting plate 73 is slidingly connected to the mounting arm 21 and to the transversal cylinder 75; under the driving of the transverse cylinder 75, the connecting plate 73 drives the screw rod 72 and the pressing roller 63 to transversely translate.
Example II,
Referring to fig. 1-3, the difference between the second embodiment and the first embodiment is that the continuous wiping member 6 further includes two second guide rollers 65; one of the second guide rollers 65 is positioned between the winding roller 61 and one of the first guide rollers 64, and the other of the second guide rollers 65 is positioned between the recovery roller 62 and the other of the first guide rollers 64; the setting of second guide roll 65 can cooperate first guide roll 64 to cloth to wiping have the spacing of better effect, second guide roll 65, winding up roller 61, recovery roller 62 all pass through the support mounting on the supporting cabinet 101 of platform 1.
Example III,
Referring to fig. 1-3, the difference between the third embodiment and the second embodiment is that, on the basis of the second embodiment, the recovery roller 62 and the first guiding roller 64 adjacent to the winding roller 61 are made of magnetic material; the recovery roller 62 and the first guide roller 64 close to the winding roller 61 are both provided with a magnetic strip 66 which is detachably arranged; the magnetic strip 66 is usually adsorbed on the supporting cabinet 101 and adsorbed on the surface of the first guide roller 64 or the recovery roller 62 when installation is needed; when the continuous wiping component 6 works, the magnetic strip 66 clings the end of the wiping cloth to the surface of the recovery roller 62, so that the recovery roller 62 drives the used wiping cloth to wind on the surface of the recovery roller 62; when the continuous wiping component 6 is in standby, the magnetic strip 66 tightly presses the end of the wiping cloth against the surface of the first guide roller 64 close to the winding roller 61, so that the wiping cloth can be quickly spread on the surface of the silk screen plate 3 when the continuous wiping component is used next time; the installation is convenient and quick by utilizing the magnetic strip 66.
The working process of the invention is as follows: the printing mechanism 2 is stopped: when cleaning is started, the printing mechanism 2 is far away from the silk screen plate 3, the silk screen plate 3 is far away from the platform 1, and the printing mechanism 2 stops working;
the spray assembly 4 utilizes cleaning liquid to spray the silk screen plate 3: opening the first control valve 46 to make the cleaning liquid fill the long pipe 41 and then close; the long pipe 41 is driven by the connecting frame 42 to translate from left to right, when the long pipe passes through the first rack 52, the gear 51 rotates 180 degrees, at the moment, the branch pipe 43 is changed from vertical upward to vertical downward, the spraying assembly 4 is switched from a standby state to a working state, and the cleaning solution is dropped on the wire mesh through the branch pipe 43 under the action of gravity; with the continuous translation of the connecting frame 42, the gear 51 reaches the second rack 53, at which time the gear 51 rotates 180 ° again, at which time the branch pipe 43 changes from vertical downward to vertical upward, and the spraying assembly 4 changes from the working state to the standby state;
the continuous wiping component 6 cleans the silk screen plate 3: the magnetic strip 66 adsorbed on the first guide roller 64 is separated from the surface of the first guide roller 64; pulling out the end of the wiping cloth from the space between the first guide roller 64 and the press roller 63 and winding the end of the wiping cloth on the recovery roller 62, pressing the end of the wiping cloth on the surface of the recovery roller 62 by using the magnetic strip 66, starting the motor 74, and adjusting the space between the press roller 63 and the silk screen plate 3 to enable the wiping cloth to be tightly adhered to the surface of the silk screen; starting a power drive 621 to drive the recovery roller 62 to carry the wiping cloth forward, and wiping and cleaning the screen plate 3 in the conveying process; after the wiping cloth is wiped clean, cutting the wiping cloth and enabling the end part of the wiping cloth to be tightly attached to the surface of the first guide roller 64 close to the winding roller 61 by the magnetic strip 66 again;
the spray assembly 4 dries the silk screen plate 3 by using hot clean gas: the second control valve 47 is opened, the long pipe 41 moves from right to left under the action of the connecting frame 42, when the long pipe passes through the second rack 53, the gear 51 rotates 180 degrees, at the moment, the branch pipe 43 changes from vertical upward to vertical downward, the spraying assembly 4 is switched from the standby state to the working state, hot clean gas is blown to the surface of the silk screen plate 3 from the branch pipe 43, and the silk screen is dried; with the continuous translation of the connecting frame 42, the gear 51 reaches the first rack 52, at this time, the gear 51 is meshed with the first rack 52 and then rotates 180 degrees again, at this time, the branch pipe 43 changes from vertical downward to vertical upward, the spraying assembly 4 changes from the working state to the standby state, the long pipe 41 returns to the initial position, the second control valve 47 is closed, and the cleaning is completed.
It should be noted that the terms "upper, lower, left, right, inner and outer" in the present invention are defined based on the relative positions of the components in the drawings, and are only used for clarity and convenience of the technical solution, and it should be understood that the application of the terms of orientation does not limit the scope of the present application.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a screen printer with cleaning device which characterized in that includes:
the platform is used for placing a to-be-printed product and supporting all parts;
the printing mechanism is arranged on the platform and comprises mounting arms connected to two ends of the silk screen plate; the silk screen plate comprises an inner frame for fixing a silk screen and an outer frame sleeved outside the inner frame; mounting through holes are formed in the two opposite sides of the inner frame;
the spraying assembly is communicated with outside fluid and is used for spraying or drying the silk screen; the spraying assembly stretches across the outer frame and is connected to the outer frame in a sliding manner; a switching component for driving the spraying component to switch between a working state and a standby state is arranged on the outer frame;
the continuous wiping component is used for wiping the silk screen and comprises a winding roller, a recovery roller, a first guide roller and a press roller; a first guide roller is arranged in each mounting through hole; the winding roller is used for placing continuous and cuttable wiping cloth, and the recovery roller is used for collecting used wiping cloth; the winding roller and the recovery roller are both positioned below the silk screen plate and are respectively positioned at two opposite sides of the inner frame; the press roller is arranged above the silk screen plate through a lifting assembly and is used for pressing the wiping cloth to be in contact with the silk screen; the recovery roller is connected with a power drive to drive the wiping cloth to convey forwards; when the spraying assembly is in a standby state, the wiping cloth is fed to the recovery roller from the winding roller through the space between the first guide roller and the pressing roller.
2. The screen printing machine provided with a cleaning device according to claim 1, wherein the lifting assembly includes a lifting plate, a lead screw and a connecting plate; the connecting plate is arranged on the mounting arm; the support of the compression roller penetrates through the connecting plate and is arranged on the lifting plate; the lifting plate is arranged on the screw rod; the lead screw is connected to the connecting plate and drives the lifting plate to lift under the action of the motor.
3. The screen printing machine with a cleaning device of claim 2, wherein the connecting plate is slidably connected to the mounting arm and connected to the transverse cylinder; the compression roller can transversely translate under the driving of the transverse air cylinder.
4. The screen printing machine provided with a cleaning device according to claim 1, wherein the continuous wiping unit further comprises two second guide rollers; one of the second guide rollers is positioned between the winding roller and one of the first guide rollers, and the other second guide roller is positioned between the recovery roller and the other first guide roller; and the second guide roller, the winding roller and the recovery roller are all arranged on the support cabinet of the platform through a support.
5. The screen printing machine with a cleaning device according to claim 1, wherein the recovery roller and the first guide roller adjacent to the winding roller are made of a magnetic material; the recovery roller and one first guide roller are respectively provided with a magnetic strip which is detachably arranged; when the continuous wiping component works, the magnetic strip clings the end part of the wiping cloth to the surface of the recovery roller; when the continuous wiping component is in standby, the magnetic strip enables the end part of the wiping cloth to be tightly attached to the surface of the first guide roller close to the winding roller.
6. The screen printing machine provided with a cleaning device according to any one of claims 1 to 5, wherein the shower assembly includes a long pipe, a connecting frame; the long pipe transversely spans the outer frame through the connecting frame, and the connecting frame is connected with the outer frame in a sliding manner; the long pipe is connected with a plurality of branch pipes distributed along the axis of the long pipe; the moving direction of the long pipe and the moving direction of the wiping cloth are positioned on the same straight line; the long pipe can rotate relative to the connecting frame; the two end faces of the long pipe are connected with rotary joints; one of the rotary joints is connected with the cleaning liquid through a connecting pipe, and the other rotary joint is connected with the hot clean gas through a connecting pipe; a first control valve is arranged on the connecting pipe connected with the cleaning liquid, and a second control valve is arranged on the connecting pipe connected with the hot clean gas; the first control valve is started to open before the continuous wiping component works; the second control valve is activated to open after the continuous wiping assembly is operated.
7. The screen printing machine with cleaning device as claimed in claim 6, wherein the switching assembly comprises a gear mounted at the end of the long tube, a first rack and a second rack mounted on the outer frame in a linear arrangement; the first rack is close to the winding roller, and the second rack is close to the recovery roller; the gear is meshed with the first rack or the second rack; the lengths of the first rack and the second rack are matched with the rotation of the gear by 180 degrees.
8. A cleaning method of a screen printing machine according to claim 7, comprising the steps of,
s1: when cleaning is started, the printing mechanism is far away from the silk screen plate, the silk screen plate is far away from the platform, and the printing mechanism stops working;
s2: opening the first control valve to enable the cleaning liquid to be closed after the long pipe is filled with the cleaning liquid; the long pipe is driven by the connecting frame to translate, when the long pipe passes through the first rack, the gear rotates 180 degrees, the branch pipe is changed from vertical upward to vertical downward, the spraying assembly is switched from a standby state to a working state, and the cleaning liquid is dripped onto the wire mesh through the branch pipe under the action of gravity; along with the continuous translation of the connecting frame, the gear reaches the second rack, the gear rotates 180 degrees again at the moment, the branch pipe is changed from vertical downward to vertical upward at the moment, and the spraying assembly is changed from a working state to a standby state;
s3: pulling out the end part of the wiping cloth from the position between the first guide roller and the press roller and winding the end part of the wiping cloth on the recovery roller, pressing the end part of the wiping cloth on the surface of the recovery roller by using the magnetic strip, starting a motor, and adjusting the distance between the press roller and the screen plate to enable the wiping cloth to be tightly attached to the surface of the screen plate; starting power drive to enable the recovery roller to drive the wiping cloth to be conveyed forwards, and wiping and cleaning the silk screen plate in the conveying process; after the wiping cloth is wiped clean, cutting off the wiping cloth and enabling the end part of the wiping cloth to be attached to the surface of the first guide roller close to the winding roller by the magnetic stripe again;
s4: the second control valve is opened, the long pipe moves in the reverse direction under the action of the connecting frame, when the long pipe passes through the second rack, the gear rotates 180 degrees, at the moment, the branch pipe is changed from vertical upward to vertical downward, the spraying assembly is switched from a standby state to a working state, hot clean gas is sprayed to the surface of the silk screen plate from the branch pipe, and the silk screen is dried; along with the continuous translation of link, the gear reaches first rack, and the gear rotates 180 once more after meshing with first rack this moment, and the branch pipe becomes vertical upwards by vertical downwards, and spray assembly becomes standby state by operating condition, and the long tube gets back to initial position, and the second control valve is closed, and the clearance is accomplished.
CN202110716287.8A 2021-06-25 2021-06-25 Screen printing machine with cleaning device and cleaning method Active CN113370644B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013043322A (en) * 2011-08-23 2013-03-04 Nippon Steel & Sumikin Electronics Devices Inc Method and apparatus for cleaning screen printing table
CN202986336U (en) * 2011-11-16 2013-06-12 松下电器产业株式会社 Screen printing device
CN204736562U (en) * 2015-05-25 2015-11-04 湖州宏鑫绸厂 Circular screen printer's mould cleaning device
CN107876492A (en) * 2017-12-25 2018-04-06 南华大学 Inner liner of reaction kettle cleaning device and cleaning method
CN109865616A (en) * 2019-02-28 2019-06-11 程剑 A kind of panel material spray painting automatic turning device
CN110815438A (en) * 2019-11-15 2020-02-21 江苏益圆居品制造有限公司 Plank compression fittings for compound plank
CN111871651A (en) * 2020-07-21 2020-11-03 湖州中搏智能机械有限公司 Automatic device capable of changing adjusting direction for spraying parts

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013043322A (en) * 2011-08-23 2013-03-04 Nippon Steel & Sumikin Electronics Devices Inc Method and apparatus for cleaning screen printing table
CN202986336U (en) * 2011-11-16 2013-06-12 松下电器产业株式会社 Screen printing device
CN204736562U (en) * 2015-05-25 2015-11-04 湖州宏鑫绸厂 Circular screen printer's mould cleaning device
CN107876492A (en) * 2017-12-25 2018-04-06 南华大学 Inner liner of reaction kettle cleaning device and cleaning method
CN109865616A (en) * 2019-02-28 2019-06-11 程剑 A kind of panel material spray painting automatic turning device
CN110815438A (en) * 2019-11-15 2020-02-21 江苏益圆居品制造有限公司 Plank compression fittings for compound plank
CN111871651A (en) * 2020-07-21 2020-11-03 湖州中搏智能机械有限公司 Automatic device capable of changing adjusting direction for spraying parts

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Effective date of registration: 20240408

Address after: 212299 Building 8, Wanyang Chuangcheng, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province

Patentee after: Jiangsu Saier Printing Equipment Co.,Ltd.

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Address before: 212219 No.8, Chuangxin Avenue, Baqiao Town, Yangzhong City, Zhenjiang City, Jiangsu Province

Patentee before: JIANGSU SAIER PLATE MAKING Co.,Ltd.

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