Screen printing head capable of controlling ink output

Abstract

The utility model discloses a silk-screen printing head capable of controlling ink output, which relates to the technical field of silk-screen and comprises two scrapers and a discharge pipeline, the number of the scrapers used for scraping ink is two, and the two scrapers are arranged in an inclined manner; the number of the discharging pipelines used for conveying the diluent is two, and the two discharging pipelines are fixedly connected with one sides of the upper ends of the two scraping plates correspondingly. The two positioning pieces play a role in fixing the silk screen, the silk screen is placed between the two positioning pieces, then the two positioning pieces fix the two ends of the silk screen, the two positioning pieces can enable the whole silk screen to be kept in a horizontal state, and the silk screen is prevented from shaking or inclining. Therefore, printing ink on the silk screen cannot flow randomly due to shaking or inclination of the silk screen. Before screen printing is carried out, the second motor is matched with the speed reducer to control the transmission part to rotate, the transmission part drives the stand column while rotating, and the stand column rotates with the joint of the stand column and the bearing seat as the circle center till the silk screen moves to be close to the workbench and is parallel to the workbench.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of silk screen printing, in particular to a silk screen printing head capable of controlling the output of ink. Background Art

[0002] Silk screen printing is also called screen printing. Silk screen printing is a major printing method in stencil printing. For products with a small number of prints and low quality requirements, manual printing is the most convenient. If a large quantity is required and a certain quality is required, a high-precision fully automatic printing machine is required. Since the materials, quality, and shapes of silk screen printing vary greatly, there are many types of printing machines.

[0003] When using a screen printing machine, ink is required. In order to facilitate storage and transportation, the ink is in a paste form. Paste ink has high viscosity and poor fluidity. Therefore, before screen printing, an appropriate amount of diluent needs to be mixed with the ink to use the diluent to turn the paste ink into a fluid state. There are many types of diluents. At present, ether compounds are generally used for ink dilution. Ether compounds have a good dilution effect, but ether molecules cannot form hydrogen bonds, so the boiling point of ether compounds is generally very low. Even at room temperature, ether compounds will evaporate quickly. When performing screen printing, after the diluted ink is placed on the screen, the ink is not used up at one time. After multiple screen printings, the ether diluent mixed in the ink gradually evaporates, making the ink on the screen gradually become viscous and unable to pass through the screen normally, resulting in the inability to perform screen printing normally. Utility Model Content

[0004] The purpose of the utility model is to provide a silk screen printing head capable of controlling the amount of ink output. Multiple nozzles at the upper ends of two scrapers can spray out diluents, which flow along the drainage grooves on the scrapers to the silk screen and mix with the ink. The ink is diluted while the silk screen printing is being performed, so that the ink always remains in a fluid state, thereby solving the technical problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A screen printing head capable of controlling the amount of ink output comprises a scraper and a discharge pipe, wherein two scrapers are provided for scraping the ink, and both scrapers are arranged at an angle;

[0007] There are two discharge pipes for conveying the diluent, and the two discharge pipes are fixedly connected to one side of the upper end of the two scrapers respectively;

[0008] The two discharge pipes are both provided with a plurality of nozzles, and the plurality of nozzles are all arranged at an inclination, and the inclination angle of the nozzles is the same as the inclination angle of the scraper; the two scrapers are both provided with a plurality of drainage grooves on one side close to the discharge pipes fixedly connected thereto, and the positions of the plurality of drainage grooves correspond to the positions of the plurality of nozzles respectively;

[0009] One end of the two discharge pipes is provided with a solenoid valve, and the ends of the two discharge pipes close to the solenoid valve are fixedly connected to the two sealing joints respectively, and the ends of the two sealing joints away from the discharge pipes are fixedly connected with hoses, and the ends of the two hoses away from the sealing joints are fixedly connected to the discharge port of the storage bin, and a feed port is provided on the top of the storage bin.

[0010] As a further technical solution of the utility model, the tops of the two scrapers are fixedly connected to the connecting seat by bolts, a threaded seat is welded in the middle of the top of the connecting seat, a threaded hole is provided in the middle of the upper end of the threaded seat, and sliding seats are fixedly connected to both sides of the top of the connecting seat.

[0011] As a further technical solution of the utility model, the storage bin is fixedly connected to the top of the top shell by bolts, and two sliding rods are symmetrically fixedly connected to the inner side of the top shell, and the two sliding seats are respectively slidably connected to the two sliding rods; the inner side of the threaded hole of the threaded seat is threadedly connected to the screw rod, and the two ends of the screw rod are respectively rotatably connected to the inner sides of the two ends of the top shell; the inner sides of the two ends of the top shell are fixedly connected with connecting plates by bolts, and the bottoms of the two connecting plates are fixedly connected with positioning parts for fixing the wire mesh by bolts.

[0012] As a further technical solution of the utility model, one end of the top shell is fixedly connected to a column, and a transmission member is rotatably connected to one side of the bottom of the column, and the end of the transmission member away from the column is fixedly connected to the output end of the reducer; the input end of the reducer is fixedly connected to the output shaft of motor 2; the reducer is fixedly connected to the bracket by bolts.

[0013] As a further technical solution of the utility model, the side of the bracket away from the reducer is fixedly connected to the inner side of the support plate, both sides of the upper end of the column are rotatably connected with bearing seats, and both ends of the two bearing seats are fixedly connected to the bracket by bolts.

[0014] As a further technical solution of the utility model, the top of the bracket is fixedly connected to an outer frame, which is rectangular. A workbench is installed on the inner side of the outer frame. The workbench is rectangular and the length of the workbench is greater than the length of the two scrapers; a controller is fixedly connected to the top of the side of the bracket away from the column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, two positioning members play the role of fixing the screen. The screen is placed between the two positioning members, and then the two positioning members fix the two ends of the screen. The two positioning members can keep the screen in a horizontal state as a whole, prevent the screen from shaking or tilting, and thus ensure that the ink on the screen will not flow randomly due to the shaking or tilting of the screen. Before screen printing, the second motor cooperates with the reducer to control the rotation of the transmission member, and the transmission member drives the column while rotating, so that the column rotates with the connection with the bearing seat as the center of the circle until the screen moves close to the workbench and is parallel to the workbench, and then the diluted ink is poured on the screen, and the ink is scraped on the screen by two scrapers, so that the ink falls on the object on the workbench through the leakage holes on the screen, thereby completing the screen printing work.

[0017] In the utility model, during the silk-screen printing process, the ink on the silk screen will gradually become viscous as the diluent evaporates. At this time, the diluent in the two discharge pipes will be sprayed out through multiple nozzles, flow onto the silk screen along the drainage grooves on the scraper and merge with the ink on the silk screen. At the same time, the scraper also stirs the ink in the process of scraping the ink horizontally, so that the ink can be more quickly integrated with the diluent, thereby accelerating the dilution efficiency of the ink; the ink on the silk screen can always be kept in a diluted state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 This utility model Figure 1 Side view of.

[0020] Figure 3 This utility model Figure 1 Schematic diagram of part of the structure.

[0021] Figure 4 This utility model Figure 3 Another perspective of the picture.

[0022] Figure 5 This utility model Figure 4 Another perspective of the picture.

[0023] Figure 6 This utility model Figure 3 Side view of.

[0024] Figure 7 This utility model Figure 3 Bottom view of .

[0025] Figure 8 This utility model Figure 3 Schematic diagram of part of the structure.

[0026] Fig. 9 This utility model Figure 8 Another perspective of the picture.

[0027] In the figure: 1-connecting seat, 2-clamping part, 3-scraper, 4-discharging pipe, 5-nozzle, 6-drainage groove, 7-sealing joint, 8-hose, 9-discharging port, 10-storage bin, 11-threaded seat, 12-sliding seat, 13-screw, 14-sliding rod, 15-motor 1, 16-top shell, 17-connecting plate, 18-positioning part, 19-column, 20-bearing seat, 21-transmission part, 22-reducer, 23-motor 2, 24-bracket, 25-support plate, 26-outer frame, 27-workbench, 28-controller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-9 In an embodiment of the utility model, a screen printing head capable of controlling the amount of ink output includes a scraper 3 and a discharge pipe 4, two scrapers 3 for scraping the ink are provided, and the two scrapers 3 are inclined;

[0030] There are two discharge pipes 4 for conveying the diluent, and the two discharge pipes 4 are fixedly connected to one side of the upper end of the two scrapers 3 respectively;

[0031] The two discharge pipes 4 are both provided with a plurality of nozzles 5, and the plurality of nozzles 5 are all inclined, and the inclination angle of the nozzles 5 is the same as the inclination angle of the scraper 3; the two scrapers 3 are both provided with a plurality of drainage grooves 6 on one side close to the discharge pipe 4 fixedly connected thereto, and the positions of the plurality of drainage grooves 6 correspond to the positions of the plurality of nozzles 5 respectively;

[0032] One end of the two discharge pipes 4 is provided with a solenoid valve, and the ends of the two discharge pipes 4 close to the solenoid valve are fixedly connected to two sealing joints 7 respectively, and the ends of the two sealing joints 7 away from the discharge pipes 4 are fixedly connected to hoses 8, and the ends of the two hoses 8 away from the sealing joints 7 are fixedly connected to the discharge port 9 of the storage bin 10, and the top of the storage bin 10 is provided with a feed port;

[0033] The tops of the two scrapers 3 are fixedly connected to the connecting seat 1 by bolts. A threaded seat 11 is welded in the middle of the top of the connecting seat 1. A threaded hole is provided in the middle of the upper end of the threaded seat 11. Both sides of the top of the connecting seat 1 are fixedly connected with sliding seats 12.

[0034] The storage bin 10 is fixedly connected to the top of the top shell 16 by bolts, and two sliding rods 14 are symmetrically fixedly connected to the inner side of the top shell 16, and the two sliding seats 12 are slidingly connected to the two sliding rods 14 respectively; the inner side of the threaded hole of the threaded seat 11 is threadedly connected to the screw rod 13, and the two ends of the screw rod 13 are respectively rotatably connected to the inner sides of the two ends of the top shell 16; the inner sides of the two ends of the top shell 16 are fixedly connected with connecting plates 17 by bolts, and the bottoms of the two connecting plates 17 are fixedly connected with positioning pieces 18 for fixing the wire mesh by bolts.

[0035] By adopting the above technical solution, the two positioning members 18 play the role of fixing the silk screen. The silk screen is placed between the two positioning members 18, and then the two positioning members 18 fix the two ends of the silk screen. The two positioning members 18 can keep the silk screen in a horizontal state as a whole, prevent the silk screen from shaking or tilting, thereby ensuring that the ink on the silk screen will not flow freely due to the shaking or tilting of the silk screen; before silk screen printing, the motor 23 cooperates with the reducer 22 to control the rotation of the transmission member 21. The transmission member 21 drives the column 19 while rotating, so that the column 19 rotates with the connection with the bearing seat 20 as the center of the circle until the silk screen moves close to the workbench 27 and is parallel to the workbench 27, and then the diluted ink is poured on the silk screen, and the ink is scraped on the silk screen by two scrapers 3, so that the ink falls on the object on the workbench 27 through the leakage holes on the silk screen, thereby completing the silk screen printing work.

[0036] In this embodiment, one end of the top shell 16 is fixedly connected to a column 19, and a transmission member 21 is rotatably connected to one side of the bottom of the column 19. The end of the transmission member 21 away from the column 19 is fixedly connected to the output end of the reducer 22; the input end of the reducer 22 is fixedly connected to the output shaft of the motor 23; the reducer 22 is fixedly connected to the bracket 24 by bolts;

[0037] The side of the bracket 24 away from the reducer 22 is fixedly connected to the inner side of the support plate 25, and the upper ends of the columns 19 are rotatably connected to the bearing seats 20 on both sides, and the two ends of the two bearing seats 20 are fixedly connected to the bracket 24 by bolts;

[0038] The top of the bracket 24 is fixedly connected to an outer frame 26, which is rectangular. A workbench 27 is installed on the inner side of the outer frame 26. The workbench 27 is rectangular and its length is greater than the length of the two scrapers 3; a controller 28 is fixedly connected to the top of the side of the bracket 24 away from the column 19.

[0039] By adopting the above technical solution, during the silk-screen printing process, the ink on the silk-screen will gradually become viscous as the diluent evaporates. At this time, the diluent in the two discharge pipes 4 will be sprayed out through multiple nozzles 5, and flow along the drainage groove 6 on the scraper 3 to the silk-screen and mix with the ink on the silk-screen. At the same time, the scraper 3 also stirs the ink during the process of scraping the ink horizontally, so that the ink can be more quickly integrated with the diluent, thereby accelerating the dilution efficiency of the ink; so that the ink on the silk-screen can always remain in a diluted state.

[0040] The working principle of the utility model is as follows: two positioning members 18 play the role of fixing the screen, the screen is placed between the two positioning members 18, and then the two positioning members 18 fix the two ends of the screen, the two positioning members 18 can keep the screen in a horizontal state as a whole, prevent the screen from shaking or tilting, thereby ensuring that the ink on the screen will not flow freely due to the shaking or tilting of the screen; before screen printing, the motor 23 cooperates with the reducer 22 to control the rotation of the transmission member 21, and the transmission member 21 drives the column 19 while rotating, so that the column 19 rotates with the connection with the bearing seat 20 as the center of the circle until the screen moves close to the workbench 27 and is parallel to the workbench 27, and then the diluted ink is poured on the screen, and the two scrapers 3 are used to scrape the ink on the screen, so that the ink falls on the object on the workbench 27 through the leakage holes on the screen, thereby completing the screen printing work;

[0041] During the silk-screen printing process, the ink on the silk-screen will gradually become viscous as the diluent evaporates. At this time, the diluent in the two discharge pipes 4 will be sprayed out through multiple nozzles 5, and flow along the drainage groove 6 on the scraper 3 to the silk-screen and mix with the ink on the silk-screen. At the same time, the scraper 3 also stirs the ink during the process of scraping the ink horizontally, so that the ink can blend with the diluent more quickly, thereby accelerating the dilution efficiency of the ink; allowing the ink on the silk-screen to always remain in a diluted state.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A screen printing head capable of controlling the amount of ink output, characterized in that: include A scraper (3), wherein two scrapers (3) are provided for scraping ink, and both scrapers (3) are arranged at an angle; A discharge pipe (4), two discharge pipes (4) for conveying a diluent are provided, and the two discharge pipes (4) are respectively fixedly connected to one side of the upper ends of the two scrapers (3); The two discharge pipes (4) are each provided with a plurality of nozzles (5), the plurality of nozzles (5) are each arranged in an inclined manner, and the inclination angle of the nozzles (5) is the same as the inclination angle of the scraper (3); the two scrapers (3) are each provided with a plurality of drainage grooves (6) on one side close to the discharge pipe (4) to which they are fixedly connected, and the positions of the plurality of drainage grooves (6) respectively correspond to the positions of the plurality of nozzles (5); One end of the two discharge pipes (4) is provided with a solenoid valve, and the ends of the two discharge pipes (4) close to the solenoid valve are fixedly connected to two sealing joints (7) respectively, and the ends of the two sealing joints (7) away from the discharge pipes (4) are fixedly connected to hoses (8), and the ends of the two hoses (8) away from the sealing joints (7) are fixedly connected to the discharge port (9) of the storage bin (10), and the top of the storage bin (10) is provided with a feed port.

2. The screen printing head capable of controlling the ink output according to claim 1, characterized in that: The tops of the two scrapers (3) are fixedly connected to the connecting seat (1) by bolts, a threaded seat (11) is welded in the middle of the top of the connecting seat (1), a threaded hole is provided in the middle of the upper end of the threaded seat (11), and sliding seats (12) are fixedly connected to both sides of the top of the connecting seat (1).

3. The screen printing head capable of controlling the ink output according to claim 2, characterized in that: The storage bin (10) is fixedly connected to the top of the top shell (16) by bolts, and two sliding rods (14) are symmetrically fixedly connected to the inner side of the top shell (16), and the two sliding seats (12) are respectively slidably connected to the two sliding rods (14); the inner side of the threaded hole of the threaded seat (11) is threadedly connected to the screw rod (13), and the two ends of the screw rod (13) are respectively rotatably connected to the inner sides of the two ends of the top shell (16); the inner sides of the two ends of the top shell (16) are fixedly connected to connecting plates (17) by bolts, and the bottoms of the two connecting plates (17) are fixedly connected to positioning pieces (18) for fixing the wire mesh by bolts.

4. The screen printing head capable of controlling the ink output according to claim 3, characterized in that: One end of the top shell (16) is fixedly connected to a column (19), one side of the bottom of the column (19) is rotatably connected to a transmission member (21), and one end of the transmission member (21) away from the column (19) is fixedly connected to the output end of a reducer (22); the input end of the reducer (22) is fixedly connected to the output shaft of a second motor (23); and the reducer (22) is fixedly connected to a bracket (24) via bolts.

5. The screen printing head capable of controlling the ink output according to claim 4, characterized in that: The side of the bracket (24) away from the reducer (22) is fixedly connected to the inner side of the support plate (25), and the upper ends of the columns (19) are rotatably connected to bearing seats (20), and both ends of the two bearing seats (20) are fixedly connected to the bracket (24) by bolts.

6. The screen printing head capable of controlling the ink output according to claim 5, characterized in that: The top of the bracket (24) is fixedly connected to an outer frame (26), the outer frame (26) is rectangular, a workbench (27) is installed on the inner side of the outer frame (26), the workbench (27) is rectangular and the length of the workbench (27) is greater than the length of the two scrapers (3); the top of the bracket (24) away from the column (19) is fixedly connected to a controller (28).

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