Stainless steel plate surface printing equipment and method

Abstract

The invention belongs to the technical field of printing machines, and particularly relates to stainless steel plate surface printing equipment and method. A printing structure and a recycling mechanism are arranged on the printing machine, and a fixing plate is fixedly connected to the top face of the printing machine. The printing structure comprises an electric guide rail fixedly connected with the fixing plate, and a sliding block is slidably connected into the electric guide rail. By starting a second electric telescopic rod, the second electric telescopic rod drives a silk screen to make contact with a stainless steel plate, then the output end of a first electric telescopic rod drives a sliding rod and a scraping plate to move downwards, the scraping plate makes contact with the silk screen at the moment, and meanwhile a discharging plate makes contact with the silk screen under driving of the sliding rod; and at the moment, the sealing mechanism does not seal the end opening of the connecting rod any more, dye in the dye box can enter the discharging plate along the connecting rod and the sliding rod, the dye can evenly flow to a silk screen from the discharging hole at the moment, and the printing quality and efficiency of the stainless steel plate are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of printing machines, in particular to a stainless steel plate surface printing device and method. Background Art

[0002] Stainless steel plate surface printing equipment mainly includes various types of screen printers, laser engraving machines, chemical etching machines and other equipment. Each of these equipment has its own unique functions and advantages, which can meet the needs of different customers. The screen printer transfers ink to the surface of the stainless steel plate by using a screen template to form various patterns and texts.

[0003] However, the above technology often has the following defects: In the screen printing process, when it comes to the ink feeding step, the traditional method often relies on the manual operation of the operator. However, such manual operation easily leads to uneven distribution of ink on the screen, which in turn has an adverse effect on the quality and production efficiency of the stainless steel plate prints. Therefore, the present invention provides a stainless steel plate surface printing device and method. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present application proposes a stainless steel plate surface printing device and method.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a stainless steel plate surface printing device described in the present invention comprises a printing machine; the printing machine is provided with a printing structure and a recycling mechanism, and the top surface of the printing machine is fixedly connected with a fixing plate; The printing structure comprises an electric rail fixedly connected to a fixed plate, a slider is slidably connected in the electric rail, a first electric telescopic rod is fixedly connected to the slider, a scraper is fixedly connected to the output end of the first electric telescopic rod, a pair of mounting plates are fixedly connected to the fixed plate, a second electric telescopic rod is fixedly connected to the mounting plate, a connecting frame is fixedly connected to the output end of the second electric telescopic rod, and a printed screen is fixedly installed on the inner wall of the connecting frame; A hollow connecting rod is fixedly connected to the top surface of the slider, a hollow sliding rod is sealingly and slidably connected inside the connecting rod, an outer wall of the sliding rod is fixedly connected to the output end of the first electric telescopic rod through a bracket, the top of the connecting rod is connected to a dye box, the side wall of the dye box is connected to a feed pipe, the bottom end of the sliding rod is connected to a hollow discharge plate, a plurality of discharge holes are evenly arranged on the bottom surface of the discharge plate, and a sealing mechanism for sealing its port is provided inside the connecting rod.

[0006] Preferably, the sealing mechanism comprises a fixing rod fixedly connected to the top end of the sliding rod by means of a bracket, a sealing column fixedly connected to the top end of the fixing rod, and a sealing ring fixedly connected to the inner wall of the top end of the connecting rod for sealing with the sealing column.

[0007] Preferably, the inner wall of the dye box is sealingly and slidably connected with a pressure plate, a group of first springs are fixedly connected between the top surface of the pressure plate and the inner wall of the dye box, the top surface of the dye box is slidably connected with a round rod, and the bottom surface of the round rod is fixedly connected to the pressure plate.

[0008] Preferably, a hollow block is sealingly and slidingly connected to the inner wall of the discharge plate, a circular hole corresponding to the discharge hole is formed on the bottom surface of the hollow block, a through hole is formed on the side of the discharge plate away from the slide rod, a second spring is fixedly connected between the side of the hollow block away from the through hole and the inner wall of the discharge plate, and a feed hole is formed on the side of the hollow block close to the second spring.

[0009] Preferably, an alarm is fixedly connected to the top surface of the dye box, a connecting groove is provided on the inner side wall of the dye box, a trigger for activating the alarm is provided in the connecting groove, and a starting mechanism for activating the trigger is provided in the dye box.

[0010] Preferably, the starting mechanism includes a movable groove opened on the side of the pressure plate close to the connecting groove, a pressure block is slidably connected in the movable groove, the top surface of the pressure block is inclined, a third spring is fixedly connected between the side of the pressure block away from the connecting groove and the inner wall of the movable groove, the positions of the movable groove and the connecting groove are on the same horizontal line, an elastic sheet is fixedly connected to the inner wall of the connecting groove, and the trigger is a pressure-type trigger.

[0011] Preferably, a sliding plate is slidably connected to a side of the discharge plate away from the scraper plate, a recovery box is mounted on the sliding plate by screws, and a recovery groove is provided on a side of the bottom surface of the recovery box close to the discharge plate.

[0012] Preferably, a sealing plate is twisted on the top surface of the inner wall of the recovery trough through a torsion spring, a side of the sealing plate close to the discharge plate is fixedly connected to a magnetic block, a side of the sealing plate corresponding to the magnetic block is fixedly connected to a magnetic plate, the magnetic plate and the magnetic block repel each other, the inner wall of the recovery box is sealingly and slidingly connected to a movable plate, a side of the recovery box away from the discharge plate is slidingly connected to a push rod, one end of the push rod located in the recovery box is fixedly connected to the movable plate, and a fourth spring is fixedly connected between the side of the movable plate close to the push rod and the inner wall of the recovery box.

[0013] A method for printing on the surface of a stainless steel plate, the method using the above-mentioned stainless steel plate surface printing device, the method comprising the following steps: S1: Transfer the design pattern to the screen template, which is composed of fine mesh fabric and frame. The pattern forms a graphic area on the screen through photosensitive materials or chemical methods. Clean the surface of the stainless steel plate to ensure that it is free of oil, dust or other contaminants; S2: Inject the dye into the dye box from the feed pipe so that the dye is stored in the dye box, and then place the stainless steel plate on the printing press; S3: The output end of the first electric telescopic rod drives the sliding rod and the scraper to move downward. At this time, the scraper will contact the screen, and the discharge plate will also contact the screen driven by the sliding rod. At this time, the sealing column will be separated from the sealing ring, allowing the dye to enter the discharge plate from the dye box; S4: When the dye is discharged, the pressing plate will push the dye under the action of the first spring, so that the flow rate of the dye is accelerated, and the dye is discharged quickly and evenly from the discharge hole to the screen, and then the electric guide rail drives the slider to move, so that the scraper scrapes the dye on the screen, and prints the pattern on the screen onto the surface of the stainless steel plate; S5: When the dye in the dye box is insufficient, the trigger is activated by the starting mechanism, so that the trigger activates the alarm, and the alarm will sound and light alarm; S6: The pressing plate is reset by pulling the round rod. At this time, the position of the pressing plate is higher than the feed pipe, and then the dye is injected into the dye box from the feed pipe.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention injects the dye into the dye box from the feed pipe so that the dye is stored in the dye box, then places the stainless steel plate on the printing press, starts the second electric telescopic rod, drives the screen to contact the stainless steel plate, and then drives the slide bar and the scraper to move downward through the output end of the first electric telescopic rod. At this time, the scraper will contact the screen, and the discharge plate will also contact the screen driven by the slide bar. At this time, the sealing mechanism no longer seals the port of the connecting rod, so that the dye in the dye box can enter the discharge plate along the connecting rod and the inside of the slide bar. At this time, the dye can evenly flow from the discharge hole onto the screen, thereby improving the printing quality and efficiency of the stainless steel plate.

[0015] 2. When the slide rod of the present invention moves downward, it will drive the fixed rod and the sealing column to move downward. At this time, the sealing column will be separated from the sealing ring, so that the dye in the dye box can enter the discharge plate along the connecting rod and the slide rod. When the slide rod is driven to move upward and reset at the output end of the first electric telescopic rod, the slide rod will drive the sealing column and the sealing ring to cooperate in sealing to prevent the dye from continuing to enter the discharge plate. Through the above mechanism, the dye loading work can be automatically controlled during the movement of the slide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a three-dimensional diagram of a printing press in the present invention; Figure 2 It is a structural schematic diagram of the printing mechanism in the present invention; Figure 3 It is a schematic diagram of the internal structure of the dye box, connecting rod, sliding rod and discharge plate in the present invention; Figure 4 yes Figure 3 A magnified image of point A; Figure 5 yes Figure 3 The enlarged view of point B; Figure 6 yes Figure 3 Enlarged view of point C; Figure 7 It is a structural schematic diagram of the recovery mechanism in the present invention; Figure 8 yes Figure 7 The enlarged view of point D; Fig. 9 It is a flow chart of the method in the present invention.

[0018] In the figure: 1. printing machine; 2. electric guide rail; 3. first electric telescopic rod; 4. scraper; 5. connecting rod; 6. sliding rod; 7. dye box; 8. discharge plate; 9. second electric telescopic rod; 10. screen; 11. fixed rod; 12. sealing column; 13. sealing ring; 14. pressing plate; 15. round rod; 16. hollow block; 17. round hole; 18. feeding hole; 19. connecting groove; 20. trigger; 21. elastic sheet; 22. moving groove; 23. pressing block; 24. sliding plate; 25. recovery box; 26. moving plate; 27. push rod; 28. sealing plate; 29. ​​magnetic block; 30. magnetic plate; 31. alarm. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1: Figures 1 to 6 As shown, a stainless steel plate surface printing device according to an embodiment of the present invention comprises a printing machine 1; the printing machine 1 is provided with a printing structure and a recovery mechanism, and a fixing plate is fixedly connected to the top surface of the printing machine 1; The printing structure comprises an electric rail 2 fixedly connected to a fixed plate, a slider is slidably connected inside the electric rail 2, a first electric telescopic rod 3 is fixedly connected to the slider, a scraper 4 is fixedly connected to the output end of the first electric telescopic rod 3, a pair of mounting plates are fixedly connected to the fixed plate, a second electric telescopic rod 9 is fixedly connected to the mounting plate, a connecting frame is fixedly connected to the output end of the second electric telescopic rod 9, and a printed screen 10 is fixedly installed on the inner wall of the connecting frame; The top surface of the slider is fixedly connected with a hollow connecting rod 5, and a hollow sliding rod 6 is sealed and slidably connected inside the connecting rod 5. The outer wall of the sliding rod 6 is fixedly connected to the output end of the first electric telescopic rod 3 through a bracket. The top of the connecting rod 5 is connected with a dye box 7, and the side wall of the dye box 7 is connected with a feed pipe. The bottom end of the sliding rod 6 is connected with a hollow discharge plate 8, and the bottom surface of the discharge plate 8 is evenly provided with multiple groups of discharge holes. A sealing mechanism for sealing the port at the top of the connecting rod 5 is provided inside the connecting rod 5; The present invention injects the dye into the dye box 7 from the feed pipe so that the dye is stored in the dye box 7. Then, the stainless steel plate is placed on the printing machine 1, and then the stainless steel plate is printed using the printing structure. First, the second electric telescopic rod 9 is started to drive the screen 10 to contact the stainless steel plate, and then the output end of the first electric telescopic rod 3 drives the slide bar 6 and the scraper 4 to move downward. At this time, the scraper 4 will contact the screen 10, and the discharge plate 8 will also contact the screen 10 driven by the slide bar 6. At this time, the sealing mechanism no longer seals the port of the connecting rod 5, so that the dye in the dye box 7 can be The dye enters the discharge plate 8 along the connecting rod 5 and the sliding rod 6. At this time, the dye can flow evenly from the discharge hole to the screen 10, and then the slider is driven to move with the help of the electric guide rail 2, so that the scraper 4 scrapes the dye on the screen 10, and prints the pattern on the screen 10 onto the surface of the stainless steel plate. At this time, the discharge hole is always in the discharge state. Then, the second electric telescopic rod 9 and the first electric telescopic rod 3 respectively drive the screen 10, the discharge plate 8 and the scraper 4 to reset, thereby completing the printing work on the stainless steel plate. The above mechanism can discharge the dye evenly on the screen 10, thereby improving the printing quality and efficiency of the stainless steel plate.

[0021] The sealing mechanism includes a fixed rod 11 fixedly connected to the top of the sliding rod 6 by means of a bracket, a sealing column 12 fixedly connected to the top of the fixed rod 11, and a sealing ring 13 fixedly connected to the inner wall of the top of the connecting rod 5 for sealing with the sealing column 12; when the sliding rod 6 of the present invention moves downward, it will drive the fixed rod 11 and the sealing column 12 to move downward, and at this time the sealing column 12 will be separated from the sealing ring 13, so that the dye in the dye box 7 can enter the discharge plate 8 along the connecting rod 5 and the sliding rod 6, and when the sliding rod 6 is driven to move upward and reset at the output end of the first electric telescopic rod 3, the sliding rod 6 will drive the sealing column 12 to cooperate with the sealing ring 13 to seal, and prevent the dye from continuing to enter the discharge plate 8. Through the above-mentioned mechanism, the dye loading work can be automatically controlled during the movement of the sliding rod 6.

[0022] The inner wall of the dye box 7 is sealed and slidably connected with a pressure plate 14, a group of first springs are fixedly connected between the top surface of the pressure plate 14 and the inner wall of the dye box 7, the top surface of the dye box 7 is slidably connected with a round rod 15, and the bottom surface of the round rod 15 is fixedly connected to the pressure plate 14; when the sealing mechanism of the present invention no longer seals the end of the connecting rod 5, the pressure plate 14 will push the dye under the action of the first spring, so that the flow rate of the dye is accelerated, and the dye is discharged from the discharge hole to the screen 10 quickly and evenly. After the dye in the dye box 7 is used up, the round rod 15 can be pulled to reset the pressure plate 14. At this time, the position of the pressure plate 14 is higher than the feed pipe, and then the dye is injected into the dye box 7 from the feed pipe.

[0023] The inner wall of the discharge plate 8 is sealed and slidably connected with a hollow block 16, and a circular hole 17 corresponding to the discharge hole is provided on the bottom surface of the hollow block 16. A through hole is provided on the side of the discharge plate 8 away from the slide rod 6, and a second spring is fixedly connected between the side of the hollow block 16 away from the through hole and the inner wall of the discharge plate 8, and a feeding hole 18 is provided on the side of the hollow block 16 close to the second spring. When discharging, when the dye enters the discharge plate 8 from the slide rod 6, the dye will first be discharged from the discharge hole close to the slide rod 6. At this time, more material will be discharged from the discharge hole close to the slide rod 6, thereby causing unnecessary waste. The hollow block 1 is fixedly connected to the inner wall of the discharge plate 8 by the above mechanism. 6, so that in a normal state, the through hole on the hollow block 16 and the feed hole 18 are staggered, and there is a staggered gap between the port at the bottom end of the slide rod 6 and the top surface of the hollow block 16, and then the dye will enter the discharge plate 8 from the gap when discharging, and then enter the hollow block 16 from the feed hole 18. After the dye in the hollow block 16 is full, the hollow block 16 will be pushed, and the hollow block 16 will move to align the circular hole 17 with the discharge hole. At this time, the dye will be evenly discharged from the discharge hole, thereby further improving the uniformity of the dye on the silk screen 10, and at the same time can also reduce the waste of dye.

[0024] An alarm 31 is fixedly connected to the top surface of the dye box 7, a connecting groove 19 is provided on the inner side wall of the dye box 7, a trigger 20 for starting the alarm 31 is arranged in the connecting groove 19, and a starting mechanism for starting the trigger 20 is arranged in the dye box 7; when the dye in the dye box 7 is insufficient, the trigger 20 is started by the starting mechanism, so that the trigger 20 starts the alarm 31, and the alarm 31 will give out sound and light alarms to warn the staff to add the dye in time to prevent affecting the printing work on the stainless steel plate.

[0025] The starting mechanism includes a moving groove 22 opened on the side of the pressure plate 14 close to the connecting groove 19, a pressure block 23 is slidably connected in the moving groove 22, the top surface of the pressure block 23 is inclined, a third spring is fixedly connected between the side of the pressure block 23 away from the connecting groove 19 and the inner wall of the moving groove 22, the positions of the moving groove 22 and the connecting groove 19 are on the same horizontal line, an elastic sheet 21 is fixedly connected to the inner wall of the connecting groove 19, and the trigger 20 is a pressure trigger; the pressure plate 14 in the present application will move downward as the dye decreases, and when the pressure plate 14 drives the moving groove 22 to move to the connecting groove 19, it means that the dye in the dye box 7 has reached an insufficient position, and then the third spring will push the pressure block 23, so that the pressure block 23 squeezes the elastic sheet 21, and at this time the elastic sheet 21 squeezes the gas, so that the trigger 20 will feel the increase in the pressure value, thereby starting the alarm 31 to alarm, so as to achieve the effect of automatically starting the alarm 31 to alarm when the dye in the dye box 7 is insufficient.

[0026] Embodiment 2: Figures 7 and 8 As shown, in contrast to Example 1, another implementation of the present invention is as follows: a slide plate 24 is slidably connected to the side of the discharging plate 8 away from the scraper plate 4, a recovery box 25 is mounted on the slide plate 24 by screws, and a recovery groove is provided on the bottom side of the recovery box 25 close to the discharging plate 8; after the discharging plate 8 completes the discharging of the dye, the present invention needs to be raised with the help of the first electric telescopic rod 3, the recovery box 25 will always be in contact with the screen 10, and then when the slider moves to the right, the side wall of the recovery box 25 will scrape the dye, and then let the dye enter the recovery box 25 from the recovery groove, thereby achieving the purpose of recycling the dye and preventing the waste of the dye.

[0027] The top surface of the inner wall of the recovery groove is twisted with a sealing plate 28 through a torsion spring, and a magnetic block 29 is fixedly connected to the side of the sealing plate 28 close to the discharge plate 8, and a magnetic plate 30 is fixedly connected to the side of the sealing plate 28 corresponding to the magnetic block 29, and the magnetic plate 30 repels the magnetic block 29. The inner wall of the recovery box 25 is sealingly and slidably connected with a movable plate 26, and a push rod 27 is slidably connected to the side of the recovery box 25 away from the discharge plate 8. One end of the push rod 27 located in the recovery box 25 is fixedly connected to the movable plate 26, and a fourth spring is fixedly connected between the side of the movable plate 26 close to the push rod 27 and the inner wall of the recovery box 25; in the normal state of the present invention, the sealing plate 28 is not sealed to the recovery groove, and in the recovery box 25 When dye accumulates in the recovery groove, the discharge plate 8 moves downward to make the magnetic block 29 correspond to the magnetic plate 30. At this time, the magnetic block 29 will repel the magnetic plate 30, thereby pushing the sealing plate 28 to seal the recovery groove. At this time, there is a gap between the discharge plate 8 and the screen 10. Then the recovery box 25 is moved on the screen 10. At this time, the dye will accumulate in the recovery groove. Then the discharge plate 8 is moved upward to make the magnetic plate 30 away from the magnetic block 29. At this time, the sealing plate 28 will be reset under the action of the torsion spring and will no longer seal the recovery groove. Then the push rod 27 is pulled to make the movable plate 26 move in the recovery box 25. At this time, air will be taken in at the recovery groove, thereby sucking the dye into the recovery box 25, thereby improving the recovery effect of the dye.

[0028] like Fig. 9 As shown, a method for printing on the surface of a stainless steel plate, the method adopts the above-mentioned device for printing on the surface of a stainless steel plate, and the method comprises the following steps: S1: Transfer the design pattern to the screen 10 template, which is composed of a fine mesh fabric and a frame. The pattern forms a graphic area on the screen 10 through a photosensitive material or a chemical method. Clean the surface of the stainless steel plate to ensure that it is free of oil, dust or other contaminants; S2: injecting dye from the feed pipe into the dye box 7 so that the dye is stored in the dye box 7, and then placing the stainless steel plate on the printing press 1; S3: The output end of the first electric telescopic rod 3 drives the slide bar 6 and the scraper 4 to move downward, and the scraper 4 will contact the screen 10. At the same time, the discharge plate 8 will also contact the screen 10 driven by the slide bar 6. At this time, the sealing column 12 will be separated from the sealing ring 13, allowing the dye to enter the discharge plate 8 from the dye box 7; S4: When the dye is discharged, the pressing plate 14 pushes the dye under the action of the first spring to speed up the flow of the dye, and the dye is discharged quickly and evenly from the discharge hole to the screen 10, and then the electric guide rail 2 drives the slider to move, so that the scraper 4 scrapes the dye on the screen 10, and prints the pattern on the screen 10 onto the surface of the stainless steel plate; S5: When the dye in the dye box 7 is insufficient, the trigger 20 is activated by the starting mechanism, so that the trigger 20 activates the alarm 31, and the alarm 31 will sound and light alarm; S6: The pressing plate 14 is reset by pulling the round rod 15. At this time, the position of the pressing plate 14 is higher than the feeding pipe, and then the dye is injected into the dye box 7 from the feeding pipe.

[0029] Working principle: The present invention injects the dye into the dye box 7 from the feed pipe so that the dye is stored in the dye box 7. Then, the stainless steel plate is placed on the printing machine 1, and then the printing structure is used to print the stainless steel plate. First, the second electric telescopic rod 9 is started to drive the screen 10 to contact the stainless steel plate. Then, the output end of the first electric telescopic rod 3 drives the slide bar 6 and the scraper 4 to move downward. At this time, the scraper 4 will contact the screen 10, and the discharge plate 8 will also contact the screen 10 driven by the slide bar 6. At this time, the sealing mechanism no longer seals the port of the connecting rod 5, so that the dye in the dye box 7 is The material can enter the discharge plate 8 along the connecting rod 5 and the sliding rod 6. At this time, the dye can flow evenly from the discharge hole to the screen 10, and then the electric guide rail 2 drives the slider to move, so that the scraper 4 scrapes the dye on the screen 10, and prints the pattern on the screen 10 on the surface of the stainless steel plate. At this time, the discharge hole is always in the discharge state, and then the second electric telescopic rod 9 and the first electric telescopic rod 3 drive the screen 10, the discharge plate 8 and the scraper 4 to reset respectively, so as to complete the printing work on the stainless steel plate. Through the above mechanism, the dye can be evenly discharged on the screen 10, thereby improving the printing quality and efficiency of the stainless steel plate; When the slide bar 6 of the present invention moves downward, it will drive the fixed rod 11 and the sealing column 12 to move downward. At this time, the sealing column 12 will be separated from the sealing ring 13, so that the dye in the dye box 7 can enter the discharge plate 8 along the connecting rod 5 and the slide bar 6. When the output end of the slide bar 6 is driven to move upward and reset, the slide bar 6 will drive the sealing column 12 to cooperate with the sealing ring 13 to seal, so as to prevent the dye from continuing to enter the discharge plate 8. Through the above mechanism, the dye feeding work can be automatically controlled during the movement of the slide bar 6; when the sealing mechanism of the present invention no longer seals the port of the connecting rod 5, the pressing plate 14 will push the dye under the action of the first spring, so that the flow rate of the dye is accelerated, and the dye is discharged from the discharge hole to the screen 10 quickly and evenly. After the dye in the dye box 7 is used up, the round rod 15 can be pulled to reset the pressing plate 14. At this time, the position of the pressing plate 14 is higher than the feed pipe, and then the dye is injected into the dye box 7 from the feed pipe; When the dye enters the discharge plate 8 from the slide bar 6 during discharge, the dye will first be discharged from the discharge hole near the slide bar 6. At this time, more material will be discharged from the discharge hole near the slide bar 6, resulting in unnecessary waste. Through the arrangement of the hollow block 16 by the above-mentioned mechanism, the through hole on the hollow block 16 and the feed hole 18 are offset in a normal state. At the same time, there is an offset gap between the port at the bottom end of the slide bar 6 and the top surface of the hollow block 16. Then, when the dye is discharged, it will enter the discharge plate 8 from the gap, and then enter the hollow block 16 from the feed hole 18. After the dye in the hollow block 16 is full, the hollow block 16 will be pushed. At this time, the hollow block 16 will move to align the circular hole 17 with the discharge hole. At this time, the dye will be evenly discharged from the discharge hole, thereby further improving the uniformity of the dye on the screen 10. It can also reduce the waste of dye. When the dye in the dye box 7 is insufficient, the present invention starts the trigger 20 through the starting mechanism, so that the trigger 20 starts the alarm 31, and the alarm 31 will sound and light alarm to warn the staff to add dye in time to prevent affecting the printing work on the stainless steel plate. The pressing plate 14 in the present application will move downward as the dye decreases, and when the pressing plate 14 drives the moving groove 22 to move to the connecting groove 19, it means that the dye in the dye box 7 has reached an insufficient position, and then the third spring will push the pressing block 23, so that the pressing block 23 squeezes the elastic sheet 21. At this time, the elastic sheet 21 will squeeze the gas, so that the trigger 20 will feel the increase in the pressure value, thereby starting the alarm 31 to alarm, so as to achieve the effect of automatically starting the alarm 31 to alarm when the dye in the dye box 7 is insufficient.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A stainless steel plate surface printing device, comprising a printing machine (1); characterized in that: The printing machine (1) is provided with a printing structure and a recovery mechanism, and a fixing plate is fixedly connected to the top surface of the printing machine (1); The printing structure comprises an electric rail (2) fixedly connected to a fixed plate, a slider slidably connected inside the electric rail (2), a first electric telescopic rod (3) fixedly connected to the slider, a scraper (4) fixedly connected to the output end of the first electric telescopic rod (3), a pair of mounting plates fixedly connected to the fixed plate, a second electric telescopic rod (9) fixedly connected to the mounting plate, a connection frame fixedly connected to the output end of the second electric telescopic rod (9), a printed screen (10) fixedly mounted on the inner wall of the connection frame; A hollow connecting rod (5) is fixedly connected to the top surface of the sliding block, a hollow sliding rod (6) is sealingly and slidably connected inside the connecting rod (5), an outer wall of the sliding rod (6) is fixedly connected to the output end of the first electric telescopic rod (3) via a bracket, the top end of the connecting rod (5) is connected to a dye box (7), the side wall of the dye box (7) is connected to a feed pipe, the bottom end of the sliding rod (6) is connected to a hollow discharge plate (8), a plurality of groups of discharge holes are evenly arranged on the bottom surface of the discharge plate (8), and a sealing mechanism for sealing its port is provided inside the connecting rod (5).

2. The stainless steel plate surface printing device according to claim 1, characterized in that: The sealing mechanism comprises a fixing rod (11) fixedly connected to the top of the sliding rod (6) by means of a bracket, a sealing column (12) fixedly connected to the top of the fixing rod (11), and a sealing ring (13) that cooperates with the sealing column (12) for sealing is fixedly connected to the inner wall of the top of the connecting rod (5).

3. A stainless steel plate surface printing device according to claim 2, characterized in that: The inner wall of the dye box (7) is sealed and slidably connected to a pressure plate (14), a group of first springs are fixedly connected between the top surface of the pressure plate (14) and the inner wall of the dye box (7), the top surface of the dye box (7) is slidably connected to a round rod (15), and the bottom surface of the round rod (15) is fixedly connected to the pressure plate (14).

4. A stainless steel plate surface printing device according to claim 3, characterized in that: The inner wall of the discharge plate (8) is sealingly and slidably connected with a hollow block (16); a bottom surface of the hollow block (16) is provided with a circular hole (17) corresponding to the discharge hole; a through hole is provided on a side of the discharge plate (8) away from the slide rod (6); a second spring is fixedly connected between the side of the hollow block (16) away from the through hole and the inner wall of the discharge plate (8); and a feed hole (18) is provided on a side of the hollow block (16) close to the second spring.

5. A stainless steel plate surface printing device according to claim 4, characterized in that: An alarm (31) is fixedly connected to the top surface of the dye box (7), a connecting groove (19) is provided on the inner side wall of the dye box (7), a trigger (20) for activating the alarm (31) is arranged in the connecting groove (19), and a starting mechanism for activating the trigger (20) is arranged in the dye box (7).

6. A stainless steel plate surface printing device according to claim 5, characterized in that: The starting mechanism comprises a movable groove (22) provided on a side of the pressure plate (14) close to the connecting groove (19); a pressing block (23) is slidably connected in the movable groove (22); the top surface of the pressing block (23) is in the shape of an inclined surface; a third spring is fixedly connected between a side of the pressing block (23) away from the connecting groove (19) and an inner wall of the movable groove (22); the positions of the movable groove (22) and the connecting groove (19) are on the same horizontal line; an elastic sheet (21) is fixedly connected to the inner wall of the connecting groove (19); and the trigger (20) is a pressure-type trigger.

7. The stainless steel plate surface printing device according to claim 6, characterized in that: A sliding plate (24) is slidably connected to the side of the discharge plate (8) away from the scraper plate (4), a recovery box (25) is mounted on the sliding plate (24) by means of screws, and a recovery groove is provided on the bottom side of the recovery box (25) close to the discharge plate (8).

8. The stainless steel plate surface printing device according to claim 7, characterized in that: A sealing plate (28) is twistedly connected to the top surface of the inner wall of the recovery groove through a torsion spring, and a magnetic block (29) is fixedly connected to the side of the sealing plate (28) close to the discharge plate (8), and a magnetic plate (30) is fixedly connected to the side of the sealing plate (28) corresponding to the magnetic block (29), and the magnetic plate (30) repels the magnetic block (29). The inner wall of the recovery box (25) is sealingly slidably connected to a movable plate (26), and a push rod (27) is slidably connected to the side of the recovery box (25) away from the discharge plate (8), and one end of the push rod (27) located in the recovery box (25) is fixedly connected to the movable plate (26), and a fourth spring is fixedly connected between the side of the movable plate (26) close to the push rod (27) and the inner wall of the recovery box (25).

9. A method for printing on the surface of a stainless steel plate, the method using the stainless steel plate surface printing device as claimed in claim 8, characterized in that: The method comprises the following steps: S1: transferring the design pattern onto a screen (10) template, the screen (10) template being composed of a fine mesh fabric and a frame, the pattern forming a graphic area on the screen (10) by a photosensitive material or a chemical method, cleaning the surface of the stainless steel plate to ensure that it is free of oil, dust or other contaminants; S2: injecting dye from the feed pipe into the dye box (7) so that the dye is stored in the dye box (7), and then placing the stainless steel plate on the printing press (1); S3: The output end of the first electric telescopic rod (3) drives the slide bar (6) and the scraper (4) to move downward, and the scraper (4) will contact the screen (10). At the same time, the discharge plate (8) will also contact the screen (10) driven by the slide bar (6). At this time, the sealing column (12) will be separated from the sealing ring (13), allowing the dye to enter the discharge plate (8) from the dye box (7).

10. A method for printing the surface of a stainless steel plate according to claim 9, characterized in that: The method further comprises the steps of: S4: When the dye is discharged, the pressing plate (14) pushes the dye under the action of the first spring, so that the flow rate of the dye is accelerated, and the dye is discharged quickly and evenly from the discharge hole onto the screen (10), and then the electric guide rail (2) drives the slider to move, so that the scraper (4) scrapes the dye on the screen (10), and prints the pattern on the screen (10) onto the surface of the stainless steel plate; S5: When the dye in the dye box (7) is insufficient, the trigger (20) is activated by the activation mechanism, so that the trigger (20) activates the alarm (31), and the alarm (31) emits an audible and visual alarm; S6: The pressing plate (14) is reset by pulling the round rod (15). At this time, the position of the pressing plate (14) is higher than the feed pipe, and then dye is injected into the dye box (7) from the feed pipe.

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