A rapid ink cleaning device for laser lithography printing screen and a rapid cleaning process thereof

Abstract

The present invention discloses a rapid ink cleaning device for a laser lithography printing screen and a rapid cleaning process thereof, which relates to the field of printing screen cleaning devices and includes a main housing, a filter, and a motor. The filter is fixed to the inside of the main housing, and the motor is fixed to the left side of the main housing. A reciprocating screw is fixed to the output end of the motor, and the reciprocating screw bearing is connected to the main housing. The reciprocating screw and a movable frame are fixed to each other. The rapid ink cleaning device for a laser lithography printing screen and a rapid cleaning process thereof adopt a linkage adjustable cleaning mechanism to achieve reciprocating adjustment of the distance between the printing screen and the nozzle during the process of the nozzle flushing the printing screen. When the nozzle approaches the printing screen, the flushing area is reduced and the pressure is increased, which can effectively clean the solidified ink on the printing screen. When the nozzle is away from the printing screen, the flushing area is increased and the pressure is reduced, which can achieve a comprehensive flushing effect on the printing screen.

Description

Technical Field

[0001] The invention relates to the technical field of printing screen cleaning devices, in particular to a rapid ink cleaning device for a laser lithography printing screen and a rapid cleaning process thereof. Background Art

[0002] The printing screen is the core tool of screen printing technology. Its principle is to achieve pattern transfer by controlling the ink permeability of the image area. During printing, ink leaks through the mesh and is printed on the substrate, while the non-image area is blocked, thus achieving accurate pattern transfer.

[0003] After the printing screen has been used for a period of time, due to the curing characteristics of the ink, the mesh holes on the printing screen are blocked, affecting subsequent printing operations. The printing screen needs to be cleaned by a cleaning device. In actual use, the existing printing screen cleaning device mainly cleans the printing screen by spraying water mist through a mobile high-pressure nozzle. Since the distance between the high-pressure nozzle and the printing screen is fixed, the water mist sprayed by the high-pressure nozzle has a fixed impact force on the printing screen. It can have a good cleaning effect on uncured or incompletely cured ink, but has a poor cleaning effect on completely cured ink. If the water pressure is directly increased, although the cleaning effect can be guaranteed for completely cured ink, long-term high-pressure flushing may cause damage to the printing screen. Summary of the Invention

[0004] The object of the present invention is to provide a device for quickly cleaning ink of a laser lithography printing screen and a quick cleaning process thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for quickly cleaning ink of a laser lithography printing screen, comprising a main box body, a filter screen and a motor, a filter screen being fixed on the inside of the main box body, a motor being fixed on the left side of the main box body, a reciprocating screw being fixed on the output end of the motor, the reciprocating screw bearing being connected in the main box body, the reciprocating screw and the movable frame being fixed to each other, an adjusting mechanism being installed on the movable frame, the adjusting mechanism and the cleaning mechanism being connected to each other so that the cleaning mechanism can perform left and right reciprocating motion, the cleaning mechanism comprising a water diversion plate symmetrically arranged on the inner side of the movable frame front and back, a nozzle being fixed at equal intervals on one side of the water diversion plate, a sliding rod being fixed to the other end of the water diversion plate, a sliding connection being formed between the sliding rod and the inclined plane block, the inclined plane block being fixed on the movable frame, sliders being fixed symmetrically on the upper and lower sides of the water diversion plate, and a sliding connection being formed between the slider and the cross bar.

[0006] Preferably, a water storage tank is provided in the main box body, and the water storage tank is located at the lower side of the filter screen, and the water storage tank is connected to the water inlet installed on the main box body, and the water storage tank is connected to the water outlet valve installed on the main box body. Through the water inlet and the water outlet valve, the cleaning agent can be easily added and discharged to ensure the normal operation of the device.

[0007] Preferably, the front end face of the main box body is connected to a box door via a hinge, and the box door and the main box body are locked by a door lock, and an observation window is provided on the box door, through which the cleaning status of the printing screen can be conveniently observed.

[0008] Preferably, a control panel is also fixed on the front end face of the main box body, and a water pump is fixed on the left side of the main box body, and the water outlet of the water pump is connected to the water distribution plate through a hose. A dryer is installed on the upper side of the main box body, and water supply can be achieved through the water pump. In conjunction with the dryer, it can provide basic guarantee for the subsequent drying of the printed screen.

[0009] Preferably, a limiting mechanism is installed in the main box body, and the limiting mechanism includes an upper fixed plate and a lower fixed plate fixed in the main box body, and racks are fixed symmetrically on the upper fixed plate and the lower fixed plate, and a lower limiting frame is fixed on the lower fixed plate. Through the rack, the influence of the adjustment mechanism and the cleaning mechanism can be provided with basic protection.

[0010] Preferably, a vertical rod is fixed between the upper fixed plate and the lower fixed plate, and the vertical rod is slidably connected to the upper limit frame, and rubber pads are fixed on the upper limit frame and the lower limit frame. At the same time, a handle is fixed on the front end surface of the upper limit frame. The distance between the upper limit frame and the lower limit frame can be adjusted through the sliding action between the vertical rod and the upper limit frame, which is convenient for installing printing screens of different heights. Combined with the anti-slip effect of the rubber pad, the stability of the installation of the printing screen can be guaranteed.

[0011] Preferably, a scraper mechanism is installed on the movable frame, and the scraper mechanism includes a fixed rod fixed on the movable frame, and a fixed frame is fixed on the fixed rod, and a plastic scraper is connected to the equally spaced bearings on the fixed frame, and a torsion spring is fixed between the plastic scraper and the fixed frame. The plastic scraper on the left side of the movable frame and the plastic scraper on the right side of the movable frame are staggered, and the height of the plastic scraper is greater than the distance between two adjacent plastic scrapers. Through the action of the plastic scraper, the ink and cleaning agent on the printing screen can be scraped off to ensure the cleaning effect of the printing screen, and through the arrangement of multiple plastic scrapers, it can adapt to the printing screens of different heights for scraping, thereby improving the adaptability of the device.

[0012] Preferably, the adjusting mechanism includes a gear connected to the movable frame by a bearing, and the gear and the rack are meshed for transmission, and a cam is fixed on the gear, and the cam is slidably connected to the slide frame. A connecting block slidably connected to the guide rod is fixed on the side of the slide frame, and the guide rod is fixed on the movable frame. Through the transmission action between the gear and the rack, a basic force can be provided for the rotation of the cam, and the sliding action between the cam and the slide frame can provide a basic force for the reciprocating motion of the slide frame and the cleaning mechanism.

[0013] Preferably, a cross bar is fixed on the chute frame, and the cross bar is slidably connected to the slider, and a spring is fixed between the slider and the chute frame. The elastic action of the spring can provide a basic force for the automatic reset of the slider.

[0014] A rapid cleaning process for laser lithography printing screen ink comprises the following steps:

[0015] Step 1: Install the printing screen to be cleaned into the main box through the limiting mechanism;

[0016] Step 2: The motor drives the reciprocating screw, movable frame, scraping mechanism and cleaning mechanism to reciprocate left and right, and cooperates with the water pump, water distribution plate and nozzle to supply water to achieve the flushing effect of the printing screen, and cooperates with the plastic scraper to clean and scrape the ink on the printing screen;

[0017] Step 3: After cleaning, start the dryer to dry the printing screen.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This rapid ink cleaning device for laser lithography printing stencils and its rapid cleaning process utilizes a linked adjustable cleaning mechanism to achieve reciprocal adjustment of the distance between the printing stencil and the nozzle during the nozzle flushing process. When the nozzle approaches the printing stencil, the flushing area is reduced and the pressure is increased, effectively cleaning the solidified ink on the printing stencil. When the nozzle moves away from the printing stencil, the flushing area is increased and the pressure is reduced, achieving a comprehensive flushing effect on the printing stencil. Furthermore, by intermittently adjusting the flushing pressure, the cleaning effect of the solidified ink can be ensured while avoiding damage to the printing stencil caused by the constant high flushing pressure, thereby ensuring the cleaning effect of the printing stencil.

[0020] 2. The rapid ink cleaning device and rapid cleaning process for the laser lithography printing screen adopt a linked adjustment mechanism, which can not only provide a basic force for adjusting the distance between the nozzle and the printing screen, but also enable the nozzle to move back and forth synchronously when it moves with the movable frame. Through the reciprocating movement of the nozzle, when the movable frame moves back and forth once, the nozzle can perform multiple reciprocating flushing on the same position of the printing screen, thereby greatly improving the flushing efficiency of the printing screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front cross-sectional three-dimensional structure of the main box of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the front three-dimensional structure of the movable frame of the present invention;

[0025] Figure 5 This is a schematic diagram of a front cross-sectional three-dimensional structure of the movable frame of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the scraping mechanism and the cleaning mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of an enlarged three-dimensional structure of a side view of a partial section of the adjustment mechanism and the cleaning mechanism of the present invention.

[0028] In the figure: 1. Main box; 101. Water storage tank; 102. Water inlet; 103. Water outlet valve; 104. Box door; 105. Observation window; 106. Control panel; 107. Water pump; 108. Dryer; 2. Filter; 3. Limit mechanism; 301. Upper fixing plate; 302. Lower fixing plate; 303. Rack; 304. Lower limiting frame; 305. Vertical rod; 306. Upper limiting frame; 307. Rubber pad; 308. Handle; 4 , motor; 5. reciprocating screw; 6. movable frame; 7. scraper mechanism; 701. fixed rod; 702. fixed frame; 703. plastic scraper; 8. adjustment mechanism; 801. gear; 802. cam; 803. slide frame; 804. connecting block; 805. guide rod; 806. cross bar; 807. spring; 9. cleaning mechanism; 901. water distribution plate; 902. nozzle; 903. slide rod; 904. inclined block; 905. slider. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 The present invention provides a technical solution: a device for quickly cleaning ink of a laser lithography printing screen and a quick cleaning process thereof, comprising a main box body 1, a filter screen 2 and a motor 4, a filter screen 2 is fixed on the inside of the main box body 1, a motor 4 is fixed on the left side of the main box body 1, a reciprocating screw rod 5 is fixed on the output end of the motor 4, the reciprocating screw rod 5 bearing is connected in the main box body 1, the reciprocating screw rod 5 and the movable frame 6 are fixed to each other, an adjusting mechanism 8 is installed on the movable frame 6, the adjusting mechanism 8 and the cleaning mechanism 9 are connected to each other so that the cleaning mechanism 9 performs left and right reciprocating motion, the cleaning mechanism 9 comprises a water diversion plate 901 symmetrically arranged on the inside of the movable frame 6, a nozzle 902 is fixed at equal intervals on one side of the water diversion plate 901, a sliding rod 903 is fixed on the other end of the water diversion plate 901, the sliding rod 903 and the inclined plane block 904 are slidably connected, the inclined plane block 904 is fixed on the movable frame 6, and a slider 905 is symmetrically fixed on the water diversion plate 901, and the slider 905 and the cross bar 806 are slidably connected.

[0031] A water storage tank 101 is provided in the main box body 1, and the water storage tank 101 is located at the lower side of the filter screen 2, and the water storage tank 101 is connected to the water inlet 102 installed on the main box body 1, and the water storage tank 101 is connected to the water outlet valve 103 installed on the main box body 1; the front face of the main box body 1 is connected to the box door 104 by a hinge, and the box door 104 and the main box body 1 are locked by a door lock, and an observation window 105 is provided on the box door 104; a limiting mechanism 3 is installed in the main box body 1, and the limiting mechanism 3 includes a fixing on the main box body 1 The upper fixing plate 301 and the lower fixing plate 302 in the box body 1 are both symmetrically fixed with racks 303 on the upper fixing plate 301 and the lower fixing plate 302, and the lower limit frame 304 is fixed on the lower fixing plate 302; a vertical rod 305 is fixed between the upper fixing plate 301 and the lower fixing plate 302, and the vertical rod 305 is slidably connected to the upper limit frame 306, and rubber pads 307 are fixed on the upper limit frame 306 and the lower limit frame 304, and a handle 308 is fixed on the front end surface of the upper limit frame 306;

[0032] Step 1: Install the printing screen to be cleaned into the main box 1 through the limiting mechanism 3;

[0033] When using the ink rapid cleaning device of the laser lithography printing screen, Figure 1-Figure 7After the upper limit frame 306 is moved to the appropriate position, the printing screen is placed between the upper limit frame 306 and the lower limit frame 304, and the handle 308 is released. At this time, under the action of the upper limit frame 306's own weight, the upper limit frame 306 moves downward until the rubber pad 307 on the lower end surface of the upper limit frame 306 contacts the printing screen, and at this time, the lower end surface of the printing screen contacts the rubber pad 307 on the upper end surface of the lower limit frame 304 synchronously. The anti-skid effect of the rubber pad 307 ensures the stability of the printing screen installation.

[0034] A control panel 106 is also fixed to the front face of the main box body 1, and a water pump 107 is fixed to the left side of the main box body 1, and the water outlet of the water pump 107 is connected to the water distribution plate 901 through a hose, and a dryer 108 is installed on the upper side of the main box body 1; the adjusting mechanism 8 includes a gear 801 connected to the movable frame 6 by a bearing, and the gear 801 is meshed with the rack 303 for transmission, and a cam 802 is fixed to the gear 801, and the cam 802 is slidably connected to the chute frame 803, and a connecting block 804 is fixed to the side of the chute frame 803 for sliding connection with the guide rod 805, and the guide rod 805 is fixed to the movable frame 6; a cross bar 806 is fixed to the chute frame 803, and the cross bar 806 is slidably connected to the slider 905, and a spring 807 is fixed between the slider 905 and the chute frame 803;

[0035] Step 2: The motor 4 drives the reciprocating screw 5, the movable frame 6, the scraping mechanism 7 and the cleaning mechanism 9 to reciprocate left and right, and cooperates with the water pump 107, the water distribution plate 901 and the nozzle 902 to supply water to achieve the flushing effect of the printing screen, and cooperates with the plastic scraper 703 to clean and scrape off the ink on the printing screen;

[0036] After the printing screen is installed, Figure 1-Figure 7As shown, the box door 104 is closed, and the water pump 107 and the motor 4 are started at the same time. At this time, under the action of the water pump 107, the cleaning liquid in the water storage tank 101 is transported to the water distribution plate 901 through the hose and sprayed out through the nozzle 902. At this time, the reciprocating screw rod 5 is driven by the motor 4 to rotate, so that the movable frame 6 moves back and forth, thereby synchronously driving the nozzle 902 to move. When the water mist sprayed by the nozzle 902 contacts the printing screen, the ink on the printing screen can be flushed, and the movable frame 6 moves. When the chute frame 803 is moved, the gear 801 is synchronously driven to move, and the meshing transmission effect between the gear 801 and the rack 303 is matched, so that the gear 801 drives the convex shaft 802 to rotate, and the sliding effect between the convex shaft 802 and the chute frame 803 is matched, so that the chute frame 803 can perform orderly left and right reciprocating motion, and the sliding guide effect between the connecting block 804 and the guide rod 805 can ensure the stability of the movement of the chute frame 803. When the chute frame 803 reciprocates, the water distribution plate 901 and the nozzle 902 are synchronously driven. The nozzle 902 can move back and forth in an orderly manner, so that the water diverter plate 901 and the nozzle 902 can move back and forth synchronously when the movable frame 6 moves back and forth. That is, when the movable frame 6 moves back and forth once, the water diverter plate 901 and the nozzle 902 can move back and forth multiple times to achieve the ink flushing effect on the same position of the printing screen, thereby effectively improving the cleaning efficiency of the device. When the water diverter plate 901 and the nozzle 902 move back and forth, the sliding rod 903 is driven to move back and forth synchronously, and the sliding rod 903 is driven to move back and forth in coordination with the sliding rod 903. The sliding action between the rod 903 and the inclined block 904 allows the water diverter plate 901 and the nozzle 902 to move back and forth, thereby adjusting the distance between the nozzle 902 and the printing stencil. By adjusting the distance between the nozzle 902 and the printing stencil, the impact force of the water mist sprayed by the nozzle 902 on the printing stencil can be adjusted, which can not only ensure the effective flushing of the solidified ink on the printing stencil, but also avoid the damage to the printing stencil caused by the high pressure of the flushing for a long time, thereby effectively ensuring the cleaning quality of the printing stencil.

[0037] A scraper mechanism 7 is installed on the movable frame 6. The scraper mechanism 7 includes a fixed rod 701 fixed to the movable frame 6, and a fixed frame 702 is fixed on the fixed rod 701. Plastic scrapers 703 are connected to the fixed frame 702 with equally spaced bearings. At the same time, a torsion spring is fixed between the plastic scraper 703 and the fixed frame 702. The plastic scrapers 703 on the left side of the movable frame 6 and the plastic scrapers 703 on the right side of the movable frame 6 are staggered, and the height of the plastic scrapers 703 is greater than the distance between two adjacent plastic scrapers 703.

[0038] During the cleaning process of the printing stencil, Figure 1-Figure 7As shown, when the movable frame 6 moves and drives the cleaning mechanism 9 to clean the printing stencil, the plastic scraper 703 is simultaneously driven to move. During the movement of the plastic scraper 703, when the plastic scraper 703 contacts the printing stencil, the rotation between the plastic scraper 703 and the fixed frame 702 and the elastic action of the torsion spring enable the plastic scraper 703 to tilt and slide in contact with the printing stencil, thereby scraping off the ink and sewage on the printing stencil. In addition, through the multiple movable plastic scrapers 703, it is possible to adapt to the scraping of ink and sewage on printing stencils of different heights, and the force between the plastic scraper 703 and the printing stencil remains stable during the scraping process. Compared with the traditional brush rotation cleaning, the problem of damage to the printing stencil caused by the brush rotation friction can be avoided, thereby ensuring the safety of printing stencil cleaning.

[0039] Step 3: After cleaning is completed, the printing screen is dried by starting the dryer 108 .

[0040] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0041] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A device for quickly cleaning ink of a laser lithography printing screen, comprising a main housing (1), a filter (2) and a motor (4), wherein the filter (2) is fixed inside the main housing (1) and the motor (4) is fixed on the left side of the main housing (1), characterized in that: A reciprocating screw (5) is fixed to the output end of the motor (4), and the bearing of the reciprocating screw (5) is connected to the main box (1). The reciprocating screw (5) and the movable frame (6) are fixed to each other. An adjusting mechanism (8) is installed on the movable frame (6). The adjusting mechanism (8) and the cleaning mechanism (9) are connected to each other so that the cleaning mechanism (9) performs left and right reciprocating motion. The cleaning mechanism (9) includes a water distribution plate (901) symmetrically arranged on the inner side of the movable frame (6). Spray heads (902) are fixed at equal intervals on one side of the water distribution plate (901). A sliding rod (903) is fixed to the other end of the water distribution plate (901). The sliding rod (903) and the inclined block (904) are connected in a sliding manner. The inclined block (904) is fixed on the movable frame (6), the water dividing plate (901) is symmetrically fixed with a slider (905) above and below, and the slider (905) is slidably connected to the cross bar (806), and a limiting mechanism (3) is installed in the main box (1), and the limiting mechanism (3) includes an upper fixed plate (301) and a lower fixed plate (302) fixed in the main box (1), and the upper fixed plate (301) and the lower fixed plate (302) are both symmetrically fixed with a rack (303) on the front and back, and a lower limiting frame (304) is fixed on the lower fixed plate (302), and a vertical rod (305) is fixed between the upper fixed plate (301) and the lower fixed plate (302), and the vertical rod (305) is fixed between the upper fixed plate (301) and the lower fixed plate (302). 05) is connected to the upper limit frame (306) in a sliding manner, a scraping mechanism (7) is installed on the movable frame (6), the scraping mechanism (7) includes a fixed rod (701) fixed on the movable frame (6), and a fixed frame (702) is fixed on the fixed rod (701), and a plastic scraper (703) is connected to the fixed frame (702) at equal intervals. At the same time, a torsion spring is fixed between the plastic scraper (703) and the fixed frame (702), the plastic scraper (703) on the left side of the movable frame (6) and the plastic scraper (703) on the right side of the movable frame (6) are staggered, and the height of the plastic scraper (703) is greater than the distance between two adjacent plastic scrapers (703), and the regulating mechanism The structure (8) includes a gear (801) connected to the movable frame (6) by a bearing, and the gear (801) and the rack (303) are meshed and transmitted, and a cam (802) is fixed on the gear (801), and the cam (802) and the chute frame (803) are slidably connected, and a connecting block (804) is fixed on the side of the chute frame (803) and is slidably connected to the guide rod (805), and the guide rod (805) is fixed on the movable frame (6), and a cross bar (806) is fixed on the chute frame (803), and the cross bar (806) and the slider (905) are slidably connected, and a spring (807) is fixed between the slider (905) and the chute frame (803).

2. The device for quickly cleaning ink of a laser lithography printing screen according to claim 1, characterized in that: A water storage tank (101) is provided in the main box (1), and the water storage tank (101) is located below the filter screen (2). The water storage tank (101) is connected to a water inlet (102) installed on the main box (1), and the water storage tank (101) is connected to a water outlet valve (103) installed on the main box (1).

3. The device for quickly cleaning ink of a laser lithography printing screen according to claim 2, characterized in that: The front end surface of the main box body (1) is connected to a box door (104) via a hinge, and the box door (104) and the main box body (1) are locked via a door lock, and an observation window (105) is provided on the box door (104).

4. The device for quickly cleaning ink of a laser lithography printing screen according to claim 3, characterized in that: A control panel (106) is also fixed to the front end of the main box (1), and a water pump (107) is fixed to the left side of the main box (1), and the water outlet of the water pump (107) is connected to the water distribution plate (901) through a hose. A dryer (108) is installed on the upper side of the main box (1).

5. The device for quickly cleaning ink of a laser lithography printing screen according to claim 4, characterized in that: The upper limit frame (306) and the lower limit frame (304) are both fixed with rubber pads (307), and a handle (308) is fixed to the front end surface of the upper limit frame (306).

6. A rapid cleaning process for laser lithography printing screen ink, characterized by: The rapid ink cleaning device for a laser lithography printing screen as claimed in claim 5 comprises the following steps: Step 1: Install the printing screen to be cleaned in the main box (1) through the limiting mechanism (3); Step 2: The motor (4) drives the reciprocating screw (5), the movable frame (6), the scraping mechanism (7) and the cleaning mechanism (9) to perform left and right reciprocating motions, and cooperates with the water pump (107), the water distribution plate (901) and the nozzle (902) to supply water to achieve the flushing effect on the printing screen, and cooperates with the plastic scraper (703) to clean and scrape off the ink on the printing screen; Step 3: After cleaning is completed, the printing screen is dried by starting the drying machine (108).

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