A kitchen appliance glass surface screen printing device and a control method thereof

Abstract

The application belongs to the technical field of screen printing devices, and particularly relates to a kitchen appliance glass surface screen printing device and a control method thereof, which comprises a rack, a material conveying assembly is fixedly installed on the top outer wall of the rack, a glass processing piece is movably connected to the top outer wall of the material conveying assembly, a brake mechanism is arranged on the outer wall of one side of the limiting mounting frame, an ink resisting mechanism is arranged on the bottom outer wall of the printing screen, a cleaning device and an ink jet device are arranged on the bottom of the brake mechanism, the cleaning device comprises a rubber scraper and an outer magnetic plate, when the rubber scraper passes above the ink resisting mechanism, the outer magnetic plate in the shape of an inverted triangle can magnetically attract the inner magnetic plate to make the ink resisting mechanism change from a flat shape to a rhombus shape, at this time, the cavity of the ink resisting mechanism is open, and the device can avoid ink backflow to the glass processing piece to cause uneven printing and paste of the printing object.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of screen printing devices, and particularly relates to a kitchen appliance glass surface screen printing device and a control method thereof. BACKGROUND

[0002] Screen printing on the surface of a kitchen appliance glass is usually completed by using a screen printing machine. The screen printing machine is a machine for printing by using a screen printing plate. It belongs to a kind of printing machine and is mainly used for printing text and images. It is a general term for machines or devices for producing printed matter. The screen printing machine is a machine for printing by using a screen printing plate. The plate is a silk screen made of silk, nylon, copper, steel or stainless steel wire, which is woven into a crisscross pattern with clear horizontal and vertical lines. The working principle of the screen printing machine is mainly based on the principle of stencil printing, that is, the ink is pressed out through the screen holes to form printing.

[0003] For example, the screen printing device and the screen printing method disclosed in the state patent CN106379037B include a silk screen printing plate and a power supply device. The silk screen printing plate includes a conductive screen. The power supply device is electrically connected with the conductive screen. The power supply device is configured to apply a positive voltage or a negative voltage to the conductive screen. The screen printing method includes using a printing head to rub the silk screen printing plate to print ink on a printing object for screen printing. The silk screen printing plate includes a conductive screen. A positive voltage or a negative voltage is applied to the conductive screen during the screen printing process. The screen printing device and the screen printing method can prevent static electricity from being generated.

[0004] However, in actual use, the printing head will scrape the excess ink on the silk screen printing plate to one side and then rub the silk screen printing plate to print ink on the printing object for screen printing. However, ink is a fluid. The accumulation of excess ink will cause the ink to flow back to more printing surface layers of the silk screen printing plate, such as the upper layer of the printing object. This will easily cause uneven printing and paste of the printing object. Therefore, we need to provide a screen printing device that can reduce the backflow of excess ink to cause uneven printing and paste of the printing object. SUMMARY

[0005] In view of the deficiencies of the prior art, the application aims to provide a kitchen appliance glass surface screen printing device and a control method thereof, which has the advantage of reducing the backflow of excess ink to cause uneven printing and paste of the printing object.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kitchen glass surface screen printing device, comprising a rack, the top outer wall of the rack is fixedly installed with a material conveying assembly, the top outer wall of the material conveying assembly is movably connected with a glass processing piece, one side outer wall of the rack is fixedly installed with a vertical drive guide rail, one side outer wall of the vertical drive guide rail is slidably connected with a horizontal drive guide rail, the horizontal drive guide rail is located directly above the rack, one side outer wall of the horizontal drive guide rail is fixedly connected with a connecting frame, the bottom outer wall of the connecting frame is fixedly connected with a screen retaining frame, the screen retaining frame is located directly above the material conveying assembly, the bottom outer wall of the screen retaining frame is movably connected with the top outer wall of the rack, the inner wall of the screen retaining frame is fixedly connected with a printing screen, one side outer wall of the printing screen is fixedly connected with an elastic screen, the bottom outer wall of the printing screen is movably connected with the top outer wall of the glass processing piece, the top outer wall of the horizontal drive guide rail is movably installed with a limiting mounting frame, one side outer wall of the limiting mounting frame is respectively provided with a brake mechanism, the bottom outer wall of the printing screen is provided with an ink resisting mechanism, the bottom of the brake mechanism is respectively provided with an ink cleaning device and an ink jet device, the ink cleaning device comprises a rubber scraper and an outer magnetic plate.

[0007] Preferably, the brake mechanism is divided into two groups, each group comprising a mounting beam fixed rod, a limiting motor, a threaded rod, a supporting threaded base, a limiting slide rod and a mounting plate, one side outer wall of the mounting beam is fixedly connected with one side outer wall of the limiting mounting frame, the bottom outer wall of the limiting motor is fixedly connected with the top outer wall of the fixed rod, the top end outer wall of the threaded rod is fixedly connected with the shaft of the fixed rod and the limiting motor, the bottom outer wall of the supporting threaded base is fixedly connected with the top outer wall of the mounting beam, the outer wall of the threaded rod is threadedly connected with the inner wall of the supporting threaded base, the top outer wall of the limiting slide rod is fixedly connected with the bottom outer wall of the fixed rod, the mounting beam is provided with a plurality of movable holes, the outer wall of the limiting slide rod is movably connected with the inner wall of the movable hole, and the bottom outer wall of the limiting slide rod is fixedly connected with the mounting plate.

[0008] Preferably, the ink resisting mechanism comprises a rubber connecting strip, an extension plate and a hinge one, the rubber connecting strip is divided into two pieces, the extension plate is divided into four pieces, one side outer wall of the rubber connecting strip is fixedly connected with one side outer wall of the two extension plates, the outer wall of the hinge one is fixedly connected with one side outer wall of the extension plate away from the rubber connecting strip, and the opposite sides of the two extension plates are hingedly connected through the hinge one, a cavity is formed in the middle of the ink resisting mechanism, the top outer wall of the ink resisting mechanism is fixedly connected with the bottom outer wall of the elastic screen, the bottom outer wall of the ink resisting mechanism is fixedly connected with a rubber gasket, and an ink removing device is arranged in the ink resisting mechanism.

[0009] Preferably, the top side of the extension plate of the ink resistance mechanism is provided with a flow channel connected to the top and bottom, and the top of the elastic screen is provided with a flow opening connected to the flow channel.

[0010] Preferably, the top side of the extension plate of the ink resistance mechanism is provided with a flow channel connected to the top and bottom, and the top of the elastic screen is provided with a flow opening connected to the flow channel.

[0011] Preferably, the ink removal device includes a plurality of hinges, connecting plates, magic tapes, and cleaning cotton wipes. The outer wall of the hinge is fixedly connected to one side of the connecting plate. The connecting plates are hingedly connected to each other. The outer wall of the magic tape is fixedly connected to one side of the connecting plate. The outer wall of the cleaning cotton wipe is fixedly connected to the magic tape. The outer wall of the cleaning cotton wipe is movably connected to the inner wall of the extension plate.

[0012] Preferably, the bottom of the top connecting plate of the ink removal device is fixedly connected to a hinge. One side of the hinge is fixedly connected to a support plate. The top of the bottom connecting plate of the ink removal device is fixedly connected to a spring hinge. One side of the spring hinge is fixedly connected to a limiting buckle. The outer wall of the support plate away from the hinge is movably connected to the outer wall of the limiting buckle.

[0013] Preferably, the inside of the screen holder is provided with a setting groove on both sides. The inner wall of the screen holder is provided with a rhombus groove connected to the setting groove. The outer wall of the rubber connecting strip is fixedly connected to the inner wall of the rhombus groove. The top of the setting groove is fixedly connected to a bidirectional operation motor. The shaft of the bidirectional operation motor is fixedly connected to a winding disc. The outer wall of the winding disc is wound with a pull rope. One end of the pull rope is fixedly connected to the outer wall of the hinge.

[0014] Preferably, the inkjet device comprises a printing rubber strip, an ink collecting box, a flow pipe and a flexible connecting pipe, the top outer wall of the printing rubber strip is fixedly connected with the bottom outer wall of the mounting plate of one of the brake mechanisms, the bottom outer wall of the printing rubber strip is provided with an overflow port, the bottom outer wall of the printing rubber strip is movably connected with the top outer wall of the printing screen, one side outer wall of the ink collecting box is fixedly connected with one side outer wall of the transverse driving guide rail, one end outer wall of the flow pipe is connected with the output end of the ink collecting box in communication, the flexible connecting pipe is embedded in the inside of the limiting mounting frame, one end outer wall of the flexible connecting pipe is connected with the flow pipe in communication, the outer wall of the end of the flexible connecting pipe away from the flow pipe is connected with the overflow port of the printing rubber strip in communication, and the top outer wall of the screen holder is provided with an ink discharge groove.

[0015] A control method of the kitchen appliance glass surface screen printing device, comprising any one of the kitchen appliance glass surface screen printing device described in the above description, preferably:

[0016] Step one: the glass processing piece to be processed is displaced to the lower side of the transverse driving guide rail through the material conveying assembly, and then the printing screen is pressed against the top outer wall of the glass processing piece through the downward movement of the transverse driving guide rail through the vertical driving guide rail;

[0017] Step two: the printing rubber strip is pressed against the outer wall of the printing screen through the brake mechanism, the brake mechanism is driven to move laterally on the outer wall of the transverse driving guide rail through the limiting mounting frame, at the same time, ink is supplied through the ink collecting box, and is transmitted to the printing rubber strip through the flow pipe and the flexible connecting pipe, and then flows out from the overflow port to print the printing screen, thereby completing the ink supply processing of the glass processing piece, at the same time, the movement of the brake mechanism enables the outer magnetic plate to attract the inner magnetic plate to extend the ink resisting mechanism, thereby avoiding the backflow of the ink;

[0018] Step three: the ink is removed through the ink removing device sliding in the ink resisting mechanism.

[0019] Compared with the prior art, the kitchen appliance glass surface screen printing device has the following beneficial effects:

[0020] In the kitchen appliance glass surface screen printing device, the ink resisting mechanism can be converted from a flat shape to a diamond shape through the splicing of the plurality of rubber connecting strips, the extension plate and the hinge one, when the printing screen is printed by the inkjet device through the lateral movement of the brake mechanism, the ink removing device is driven to move synchronously, when the rubber scraper plate passes above the ink resisting mechanism, the outer magnetic plate in the shape of an inverted triangle can magnetically attract the inner magnetic plate to convert the ink resisting mechanism from the flat shape to the diamond shape, at this time, the cavity of the ink resisting mechanism is open, the excess ink collected on the side of the printing screen can flow into the cavity of the ink resisting mechanism through the flow opening, thereby avoiding the backflow of the ink to the upper side of the glass processing piece, thereby avoiding the uneven printing and paste of the printing object. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Overall structure schematic diagram of the wire mesh holder of the present application when being lifted up;

[0022] Figure 2 Overall structure schematic diagram of the wire mesh holder of the present application when being dropped down;

[0023] Figure 3 Structure enlarged schematic diagram at A in the present application; Figure 2

[0024] Figure 4 Front view structure schematic diagram of the present application;

[0025] Figure 5 Right view structure schematic diagram of the present application;

[0026] Figure 6 Brake mechanism structure schematic diagram of the present application;

[0027] Figure 7 Structure enlarged schematic diagram at B in the present application; Figure 6

[0028] Half cut structure schematic diagram of the wire mesh holder of the present application; Figure 8

[0029] Structure enlarged schematic diagram at C in the present application; Figure 9 Figure 8 Overall structure schematic diagram of the ink resisting mechanism of the present application after being stretched into a diamond shape;

[0030] Figure 10 Structure enlarged schematic diagram at D in the present application;

[0031] Figure 11 Figure 10 Front view structure schematic diagram of the ink resisting mechanism of the present application;

[0032] Figure 12 Front view structure schematic diagram of the ink removing device of the present application;

[0033] Figure 13 Front view structure schematic diagram of the ink resisting mechanism of the present application after being stretched into a diamond shape;

[0034] Figure 14 Structure schematic diagram of the wire mesh holder of the present application after the setting slot is opened;

[0035] Figure 15 Structure schematic diagram of the wire mesh holder of the present application after the setting slot is opened;

[0036] Figure 16 Structure enlarged schematic diagram at E in the present application. Figure 15

[0037] ​​​​In the figure: 1, frame; 2, vertical drive guide rail; 3, transverse drive guide rail; 4, connecting frame; 5, silk screen holding frame; 6, printing silk screen; 7, elastic silk screen; 8, rubber connecting strip; 9, extension plate; 10, hinge one; 11, cavity; 12, rubber gasket; 13, flow-through opening; 14, flow-through groove; 15, hinge two; 16, connecting plate; 17, magic tape; 18, cleaning cotton wipe; 19, hinge three; 20, support plate; 21, spring hinge; 22, limit buckle; 23, pull rope; 24, bidirectional operation motor; 25, winding disc; 26, limit mounting frame; 27, mounting cross beam; 28, fixed rod; 29, limit motor; 30, threaded rod; 31, bearing threaded base; 32, limit sliding rod; 33, mounting plate; 34, printing rubber strip; 35, rubber scraper; 36, ink collecting box; 37, flow-through pipe; 38, soft connecting pipe; 39, outer magnetic plate; 40, material conveying assembly; 41, glass processing piece; 42, inner magnetic plate; 43, seating groove; 44, ink discharge groove. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions of the present application clear, complete description, and the advantages are more clear and obvious, the following will be combined with the drawings to further describe the embodiments of the present application. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all embodiments, only to explain the embodiments of the present application, and not for the purpose of limiting the embodiments of the present application, all other embodiments obtained by the person skilled in the art without doing creative work, belong to the scope of protection of the present application.

[0039] Embodiment one, please refer to Figures 1 to 16The application provides a technical scheme: a kitchen and electrical glass surface screen printing device, which comprises a rack 1, a material conveying assembly 40 is fixedly installed on the top outer wall of the rack 1, a glass processing piece 41 is movably connected to the top outer wall of the material conveying assembly 40, a vertical driving guide rail 2 is fixedly installed on one side outer wall of the rack 1, a horizontal driving guide rail 3 is slidably connected to one side outer wall of the vertical driving guide rail 2, the horizontal driving guide rail 3 is located directly above the rack 1, a connecting frame 4 is fixedly connected to one side outer wall of the horizontal driving guide rail 3, a screen retaining frame 5 is fixedly connected to the bottom outer wall of the connecting frame 4, the screen retaining frame 5 is located directly above the material conveying assembly 40, the bottom outer wall of the screen retaining frame 5 is movably connected to the top outer wall of the rack 1, a printing screen 6 is fixedly connected to the inner wall of the screen retaining frame 5, an elastic screen 7 is fixedly connected to one side outer wall of the printing screen 6, the bottom outer wall of the printing screen 6 is movably connected to the top outer wall of the glass processing piece 41, a limiting mounting frame 26 is movably installed on the top outer wall of the horizontal driving guide rail 3, a brake mechanism is arranged on one side outer wall of the limiting mounting frame 26, an ink resisting mechanism is arranged on the bottom outer wall of the printing screen 6, a cleaning device and an ink jet device are arranged on the bottom of the brake mechanism, the cleaning device comprises a rubber scraper 35 and an outer magnetic plate 39, the brake mechanism is divided into two groups, each group comprises a mounting beam 27, a fixed rod 28, a limiting motor 29, a threaded rod 30, a supporting threaded base 31, a limiting sliding rod 32 and a mounting plate 33, one side outer wall of the mounting beam 27 is fixedly connected to one side outer wall of the limiting mounting frame 26, the bottom outer wall of the limiting motor 29 is fixedly connected to the top outer wall of the fixed rod 28, the top end outer wall of the threaded rod 30 is fixedly connected to the shaft center of the fixed rod 28 and the limiting motor 29, the bottom outer wall of the supporting threaded base 31 is fixedly connected to the top outer wall of the mounting beam 27, the outer wall of the threaded rod 30 is threadedly connected to the inner wall of the supporting threaded base 31, the top outer wall of the limiting sliding rod 32 is fixedly connected to the bottom outer wall of the fixed rod 28, a plurality of movable holes are formed in the mounting beam 27, the outer wall of the limiting sliding rod 32 is movably connected to the inner wall of the movable hole, the bottom outer wall of the limiting sliding rod 32 is fixedly connected to the mounting plate 33, the ink jet device comprises a printing rubber strip 34, an ink collecting box 36, a flow pipe 37 and a soft connecting pipe 38, the top outer wall of the printing rubber strip 34 is fixedly connected to the bottom outer wall of the mounting plate 33 in one of the brake mechanisms, a overflow port is formed in the bottom outer wall of the printing rubber strip 34, the bottom outer wall of the printing rubber strip 34 is movably connected to the top outer wall of the printing screen 6, one side outer wall of the ink collecting box 36 is fixedly connected to one side outer wall of the horizontal driving guide rail 3, one end outer wall of the flow pipe 37 is in communication with the output end of the ink collecting box 36, the soft connecting pipe 38 is embedded in the inside of the limiting mounting frame 26, one end outer wall of the soft connecting pipe 38 is in communication with the flow pipe 37, the end outer wall of the soft connecting pipe 38, which is away from the flow pipe 37, is in communication with the overflow port of the printing rubber strip 34, and an ink discharge groove 44 is formed in the top outer wall of the screen retaining frame 5.

[0040] In this invention, the glass workpiece 41 to be processed is moved to the underside of the transverse drive rail 3 by the material conveying component 40. Then, the transverse drive rail 3 moves downward through the vertical drive rail 2 to press the printing screen 6 against the top outer wall of the glass workpiece 41. The limit motor 29 is activated by the braking mechanism, and the height of the threaded adjustment and supporting threaded base 31 is adjusted to press the printing adhesive strip 34 against the outer wall of the printing screen 6. The limit mounting bracket 26 drives the braking mechanism to move laterally on the outer wall of the transverse drive rail 3. At the same time, the ink collection box is used to... Ink is supplied through the flow pipe 37 and the flexible connecting pipe 38 to the printing strip 34, and flows out from the overflow port to print on the printing screen 6, completing the ink application process on the glass processing part 41. When the braking mechanism returns, the rubber scraper 35 in the ink cleaning device is pressed down to the surface layer of the printing screen 6. The movement of the ink cleaning device scrapes the excess ink on the printing screen 6 back to one end of the printing screen 6, thereby ensuring the cleanliness of the printing area of ​​the printing screen 6 and preventing the glass processing part 41 from being printed unevenly or becoming smeared due to excess ink.

[0041] In Example 2, based on Example 1, the ink blocking mechanism includes a rubber connecting strip 8, an extension plate 9, a hinge 10, and a cavity 11. The rubber connecting strip 8 is divided into two pieces, and the extension plate 9 is divided into four pieces. One outer wall of the rubber connecting strip 8 is fixedly connected to one outer wall of the two extension plates 9. The outer wall of the hinge 10 is fixedly connected to the outer wall of the extension plate 9 away from the rubber connecting strip 8. One outer wall of the two opposite extension plates 9 is hinged together by the hinge 10. The top outer wall of the ink blocking mechanism is fixedly connected to the bottom outer wall of the elastic mesh 7. A cavity 11 is formed in the middle of the ink blocking mechanism. A rubber gasket 12 is fixedly connected to the bottom outer wall of the ink blocking mechanism. An ink removal device is installed inside. The outer wall of one side of the top extension plate 9 in the ink blocking mechanism is provided with a flow groove 14 that is connected vertically. The top outer wall of the elastic screen 7 is provided with a flow opening 13 that is connected to the flow groove 14. The top extension plate 9 away from the flow groove 14 in the ink blocking mechanism is fixedly connected to an inner magnetic suction plate 42. The top outer wall of the rubber squeegee 35 is fixedly connected to the bottom outer wall of the mounting plate 33 in one of the braking mechanisms. The rubber squeegee 35 is in the shape of an inverted triangle. The bottom outer wall of the rubber squeegee 35 is slidably connected to the bottom outer wall of the printing screen 6. The outer magnetic suction plate 39 is fixedly connected to one side outer wall of the rubber squeegee 35. The outer magnetic suction plate 39 is magnetically connected to the inner magnetic suction plate 42.

[0042] In this invention, the ink blocking mechanism can be transformed from a flat shape to a rhombus shape by splicing multiple rubber connecting strips 8, extension plates 9 and hinges 10. When the braking mechanism moves laterally to print on the printing screen 6 using the inkjet device, it will drive the ink clearing device to move synchronously. When the rubber scraper 35 passes over the ink blocking mechanism, the inverted triangular outer magnetic suction plate 39 can magnetically attract the inner magnetic suction plate 42, causing the ink blocking mechanism to extend from a flat shape to a rhombus shape. At this time, the cavity 11 of the ink blocking mechanism is open, and the excess ink previously collected on one side of the printing screen 6 will flow into the cavity 11 of the ink blocking mechanism from the flow opening 13. This device prevents the ink from flowing back to the glass processing part 41, thus avoiding uneven printing and smearing of the substrate.

[0043] In Example 3, based on Example 2, the ink removal device includes multiple hinges 15, connecting plates 16, Velcro 17, and cleaning wipes 18. The outer wall of the hinges 15 is fixedly connected to one side of the outer wall of the connecting plates 16. The multiple connecting plates 16 are hinged to each other through the hinges 15. One side of the Velcro 17 is fixedly connected to one side of the outer wall of the connecting plates 16. One side of the outer wall of the cleaning wipes 18 is attached to the Velcro 17. The outer wall of the cleaning wipes 18 is movably connected to the inner wall of the extension plate 9.

[0044] In this invention, by splicing multiple hinges 15 and connecting plates 16, the ink removal device can synchronously change from a flat shape to a rhomboid shape, just like the ink blocking mechanism. When a certain amount of ink adheres to the ink blocking mechanism, the ink removal device slides in the cavity 11 of the ink blocking mechanism, and the cleaning cotton swab 18 wipes the inner wall of the extension plate 9, thereby cleaning the cavity 11 of the inner ink blocking mechanism. In actual use, if the cleaning cotton swab 18 is contaminated with too much ink for too long due to the long-term operation of this invention, resulting in a decrease in cleaning power, the operator can remove the ink removal device, peel off the cleaning cotton swab 18 with Velcro 17 for cleaning and replacement, and the secondary structure ensures the long-lasting cleaning power of the ink removal device.

[0045] In Example 4, based on Example 3, a hinge 3 19 is fixedly connected to the bottom outer wall of the top connecting plate 16 in the ink removal device, a support plate 20 is fixedly connected to one side outer wall of the hinge 3 19, a spring hinge 21 is fixedly connected to the top outer wall of the bottom connecting plate 16 in the ink removal device, a limit buckle 22 is fixedly connected to one side outer wall of the spring hinge 21, and the outer wall of the support plate 20 away from the hinge 3 19 is movably connected to one side outer wall of the limit buckle 22.

[0046] In this invention, when the ink blocking mechanism changes from a flat shape to a rhomboid shape, the ink removal device in the cavity 11 of the ink blocking mechanism deforms synchronously. The spring hinge 21 in this invention has strong rebound tension. The change of the ink removal device from a flat shape to a rhomboid shape causes the limiting buckle 22 connected to the spring hinge 21 to lose the pressure from the connecting plates 16 at both ends, resulting in a 90° rebound. Similarly, the support plate 20 loses pressure and naturally hangs down around the hinge 19. When the ink removal device is completely rhomboid, the outer wall of the end of the support plate 20 furthest from the hinge 19 will abut against the outer wall of the limiting buckle 22 through its downward movement, thus facilitating the connection. Plate 16 provides support, which prevents the ink removal device and ink blocking mechanism from changing from a rhomboid shape to a flat shape. When the braking mechanism returns to its original position after one round of printing, the rubber scraper 35 passes over the ink blocking mechanism again, squeezing the ink blocking mechanism. The driving force of the braking mechanism is greater than the rebound force of the spring hinge 21, causing the spring hinge 21 to deform under pressure. The limit buckle 22 rotates, and the hinge 19 disengages from the limit buckle 22 after losing pressure, causing the ink blocking mechanism and ink removal device to lose support and simultaneously change from a rhomboid shape to a flat shape, allowing excess ink generated during the previous printing to pass through, thus repeating the process.

[0047] In Example 5, based on Example 3, the wire mesh retainer 5 has a mounting groove 43 on both sides inside. The inner wall of the wire mesh retainer 5 has a diamond-shaped groove that communicates with the mounting groove 43. The outer wall of the rubber connecting strip 8 is fixedly connected to the inner wall of the diamond-shaped groove. A bidirectional motor 24 is fixedly connected to the top inner wall of the mounting groove 43. A take-up reel 25 is fixedly connected to the shaft of the bidirectional motor 24. A pull rope 23 is wound around the outer wall of the take-up reel 25. One end of the pull rope 23 passes through the diamond-shaped groove and is fixedly connected to the outer wall of one end of the hinge 15 in the ink removal device.

[0048] This device enables the bidirectional motor 24 to start and drive the take-up reel 25 to rotate, thereby moving the ink removal device in the cavity 11 of the ink blocking mechanism to clean the ink blocking mechanism.

[0049] Example 6: A method for controlling and using a screen printing device for the glass surface of kitchen appliances, comprising any one of the screen printing devices for the glass surface of kitchen appliances described in the above examples, characterized in that:

[0050] Step 1: The glass workpiece 41 to be processed is moved to the underside of the horizontal drive rail 3 by the material conveying component 40. Then, the horizontal drive rail 3 moves down through the vertical drive rail 2 to press the printing screen 6 against the top outer wall of the glass workpiece 41.

[0051] Step 2: The printing strip 34 is pressed onto the outer wall of the printing screen 6 by the braking mechanism. The limiting mounting bracket 26 drives the braking mechanism to move laterally on the outer wall of the transverse drive guide rail 3. At the same time, the ink collection box 36 supplies ink through the flow pipe 37 and the flexible connecting pipe 38 to the printing strip 34, which flows out from the overflow port to print on the printing screen 6, completing the ink application process on the glass processing part 41. Meanwhile, the movement of the braking mechanism allows the outer magnetic plate 39 to attract the inner magnetic plate 42, causing the ink blocking mechanism to extend and preventing ink backflow.

[0052] Step 3: Use the ink removal device to slide within the ink blocking mechanism to remove the ink.

[0053] The working principle and usage process of this invention are as follows: In this invention, the glass workpiece 41 to be processed is moved to the underside of the horizontal drive rail 3 by the material conveying component 40. Then, the horizontal drive rail 3 moves down through the vertical drive rail 2 to press the printing screen 6 against the top outer wall of the glass workpiece 41. The limit motor 29 is activated by the braking mechanism, and the height of the threaded adjustment and supporting threaded base 31 is adjusted to press the printing adhesive strip 34 against the outer wall of the printing screen 6. The limit mounting bracket 26 drives the braking mechanism to move laterally on the outer wall of the horizontal drive rail 3. At the same time, ink is supplied by the ink collection box 36 and transmitted to the printing adhesive strip 34 through the flow pipe 37 and the flexible connecting pipe 38, flowing out from the overflow port to print on the printing screen 6, thus completing the printing of the glass workpiece 41. In the ink application process of screen 1, when the braking mechanism returns, the rubber scraper 35 in the ink removal device is pressed down onto the surface layer of the printing screen 6. The movement of the ink removal device scrapes the excess ink on the printing screen 6 back to one end of the printing screen 6, thereby ensuring the cleanliness of the printing area of ​​the printing screen 6 and preventing excess ink from causing uneven printing and smearing on the glass processing part 41. In this invention, the ink blocking mechanism can be transformed from a flat shape to a diamond shape by splicing multiple rubber connecting strips 8, extension plates 9 and hinges 10. When the braking mechanism moves laterally to print on the printing screen 6 using the inkjet device, it will drive the ink removal device to move synchronously. When the rubber scraper 35 passes over the ink blocking mechanism, the inverted triangular outer magnetic plate 39 can magnetically attract the inner magnetic plate. Plate 42 extends the ink blocking mechanism from a flat shape to a rhomboid shape. At this time, the cavity 11 of the ink blocking mechanism is open, and the excess ink previously collected on one side of the printing screen 6 flows into the cavity 11 of the ink blocking mechanism through the flow opening 13. This device prevents ink from flowing back to the glass processing part 41, which would cause uneven printing and smearing on the substrate. In this invention, through the splicing of multiple hinges 15 and connecting plates 16, the ink removal device can synchronously change from a flat shape to a rhomboid shape, just like the ink blocking mechanism. When a certain amount of ink adheres to the ink blocking mechanism, the ink removal device slides in the cavity 11 of the ink blocking mechanism, and the inner wall of the extension plate 9 is wiped by the movement of the cleaning cotton swab 18, thereby completing the cleaning. In actual use, if the cleaning cotton swab 18 becomes contaminated with too much ink due to prolonged operation of the invention, resulting in a decrease in cleaning power, the operator can remove the ink removal device and peel off the cleaning cotton swab 18 using the Velcro 17 for cleaning and replacement. This structure ensures the long-lasting cleaning power of the ink removal device. In this invention, when the ink blocking mechanism changes from a flat shape to a rhomboid shape, the ink removal device in the ink blocking mechanism cavity 11 deforms synchronously. In this invention, the spring hinge 21 has strong rebound tension. The change of the ink removal device from a flat shape to a rhomboid shape causes the limiting buckle 22 connected to the spring hinge 21 to lose the pressure of the upper and lower connecting plates 16, thereby rebounding at a 90° directional angle.Furthermore, the support plate 20 will also be released from pressure, and the support plate 20 will hang naturally around the hinge 3 19 as the axis. When the ink removal device is completely in a diamond shape, the outer wall of the end of the support plate 20 away from the hinge 3 19 will support the connecting plate 16 by hanging down and just abutting against the outer wall of the limit buckle 22. This support will keep the diamond shape of the ink removal device and the ink blocking mechanism from changing into a flat shape. When the braking mechanism reciprocates for one round of printing preparation and returns to its original position, the rubber squeegee 35 passes over the ink blocking mechanism again. The passage of the rubber squeegee 35 will affect the ink blocking mechanism. The mechanism applies pressure, but the driving force of the braking mechanism is greater than the rebound force of the spring hinge 21, causing the spring hinge 21 to deform under pressure. The limit latch 22 rotates, and the hinge 19, after losing its pressure, disengages from the limit latch 22, causing the ink blocking mechanism and ink removal device to lose support. Simultaneously, the ink changes from a diamond shape to a flat shape, allowing excess ink from the previous reciprocating printing to pass through. This reciprocating motion, through which the bidirectional motor 24 starts, drives the take-up reel 25 to rotate, thereby moving the ink removal device within the cavity 11 of the ink blocking mechanism to clean it.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screen printing device for the glass surface of kitchen appliances, comprising a frame, characterized in that: A material conveying assembly is fixedly installed on the top outer wall of the frame. A glass processing component is movably connected to the top outer wall of the material conveying assembly. A vertical drive guide rail is fixedly installed on one side outer wall of the frame. A horizontal drive guide rail is slidably connected to one side outer wall of the vertical drive guide rail. The horizontal drive guide rail is located directly above the frame. A connecting frame is fixedly connected to one side outer wall of the horizontal drive guide rail. A wire mesh retainer is fixedly connected to the bottom outer wall of the connecting frame. The wire mesh retainer is located directly above the material conveying assembly. The bottom outer wall of the wire mesh retainer is movably connected to the top outer wall of the frame. The inner wall of the screen holder is fixedly connected to a printing screen, and one outer wall of the printing screen is fixedly connected to an elastic screen. The bottom outer wall of the printing screen is movably connected to the top outer wall of the glass processing part. A limit mounting bracket is movably installed on the top outer wall of the transverse drive guide rail. A braking mechanism is provided on one outer wall of the limit mounting bracket. An ink blocking mechanism is provided on the bottom outer wall of the printing screen. An ink cleaning device and an inkjet device are respectively provided at the bottom of the braking mechanism. The ink cleaning device includes a rubber scraper and an outer magnetic suction plate. The ink blocking mechanism includes a rubber connecting strip and an extension plate. The system comprises a hinge and a cavity. The rubber connecting strip is divided into two pieces, and the extension plate is divided into four pieces. One outer wall of the rubber connecting strip is fixedly connected to one outer wall of each of the two extension plates. The outer wall of the hinge is fixedly connected to the outer wall of the extension plate away from the rubber connecting strip. The outer walls of the two opposite extension plates are hinged together by the hinge. The top outer wall of the ink blocking mechanism is fixedly connected to the bottom outer wall of the elastic mesh. A cavity is formed in the middle of the ink blocking mechanism. A rubber gasket is fixedly connected to the bottom outer wall of the ink blocking mechanism. An ink removal device is installed inside the ink blocking mechanism. The ink blocking mechanism has a flow groove on one side of the outer wall of the top extension plate, which is connected vertically. The elastic screen has a flow opening on the top outer wall that is connected to the flow groove. The top extension plate away from the flow groove in the ink blocking mechanism is fixedly connected to an inner magnetic suction plate. The top outer wall of the rubber squeegee is fixedly connected to the bottom outer wall of the mounting plate in one of the braking mechanisms. The rubber squeegee is inverted triangular in shape. The bottom outer wall of the rubber squeegee is slidably connected to the bottom outer wall of the printing screen. The outer magnetic suction plate is fixedly connected to one side of the outer wall of the rubber squeegee. The outer magnetic suction plate is magnetically connected to the inner magnetic suction plate.

2. The screen printing device for kitchen appliance glass surfaces according to claim 1, characterized in that: The braking mechanism is divided into two groups, each group including a mounting beam, a fixed rod, a limit motor, a threaded rod, a supporting threaded base, a limit slide rod, and a mounting plate. One outer wall of the mounting beam is fixedly connected to one outer wall of the limit mounting bracket. The bottom outer wall of the limit motor is fixedly connected to the top outer wall of the fixed rod. The top outer wall of the threaded rod passes through the fixed rod and is fixedly connected to the shaft of the limit motor. The bottom outer wall of the supporting threaded base is fixedly connected to the top outer wall of the mounting beam. The outer wall of the threaded rod is threadedly connected to the inner wall of the supporting threaded base. The top outer wall of the limit slide rod is fixedly connected to the bottom outer wall of the fixed rod. The mounting beam has multiple movable holes. The outer wall of the limit slide rod is movably connected to the inner wall of the movable holes. The bottom outer wall of the limit slide rod is fixedly connected to the mounting plate.

3. The screen printing device for the glass surface of kitchen appliances according to claim 2, characterized in that: The ink removal device includes multiple hinges, connecting plates, Velcro, and a cleaning swab. The outer wall of the hinge is fixedly connected to one side of the outer wall of the connecting plate. The multiple connecting plates are hinged to each other through the hinges. One side of the Velcro is fixedly connected to one side of the outer wall of the connecting plate. One side of the outer wall of the cleaning swab is attached to the Velcro. The outer wall of the cleaning swab is movably connected to the inner wall of the extension plate.

4. The screen printing device for the glass surface of kitchen appliances according to claim 3, characterized in that: The bottom outer wall of the top connecting plate in the ink removal device is fixedly connected to a hinge three, and a support plate is fixedly connected to one side outer wall of the hinge three. The top outer wall of the bottom connecting plate in the ink removal device is fixedly connected to a spring hinge, and a limit buckle is fixedly connected to one side outer wall of the spring hinge. The outer wall of the support plate away from the hinge three is movably connected to the outer wall of the limit buckle.

5. The screen printing device for kitchen appliance glass surfaces according to claim 4, characterized in that: The wire mesh retainer has mounting grooves on both sides inside. The inner wall of the wire mesh retainer has a diamond-shaped groove that communicates with the mounting groove. The outer wall of the rubber connecting strip is fixedly connected to the inner wall of the diamond-shaped groove. A bidirectional motor is fixedly connected to the top inner wall of the mounting groove. A take-up reel is fixedly connected to the shaft of the bidirectional motor. A pull rope is wound around the outer wall of the take-up reel. One end of the pull rope passes through the diamond-shaped groove and is fixedly connected to the outer wall of one end of the hinge two in the ink removal device.

6. The screen printing device for the glass surface of kitchen appliances according to claim 5, characterized in that: The inkjet device includes a printing strip, an ink collection box, a flow tube, and a flexible connecting tube. The top outer wall of the printing strip is fixedly connected to the bottom outer wall of the mounting plate in one of the braking mechanisms. The bottom outer wall of the printing strip has an overflow port. The bottom outer wall of the printing strip is movably connected to the top outer wall of the printing screen. One side outer wall of the ink collection box is fixedly connected to one side outer wall of the transverse drive guide. One end of the flow tube is connected to the output end of the ink collection box. The flexible connecting tube is embedded inside the limiting mounting frame. One end of the flexible connecting tube is connected to the flow tube. The outer wall of the flexible connecting tube away from the flow tube is connected to the overflow port of the printing strip. The top outer wall of the screen holder has an ink discharge groove.

7. A control method for a screen printing device on the glass surface of kitchen appliances, characterized in that: The control method for the screen printing apparatus for the glass surface of kitchen appliances, as described in any one of claims 1-6, comprises the following steps: Step 1: The glass workpiece to be processed is moved to the underside of the horizontal drive rail by the material conveying component. Then, the horizontal drive rail moves down through the vertical drive rail to press the printing screen against the top outer wall of the glass workpiece. Step 2: The printing strip is pressed onto the outer wall of the printing screen by the braking mechanism. The limiting mounting bracket drives the braking mechanism to move laterally on the outer wall of the transverse drive guide. At the same time, ink is supplied by the ink collection box and transmitted to the printing strip through the flow pipe and flexible connecting pipe. It flows out from the overflow port to print on the printing screen and complete the ink application process on the glass parts. Meanwhile, the movement of the braking mechanism allows the outer magnetic plate to attract the inner magnetic plate, causing the ink to resist the extension of the mechanism and preventing ink backflow. Step 3: Use the ink removal device to slide within the ink blocking mechanism to remove the ink.

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