A T8LED lamp processing pad printing machine

Abstract

The present invention relates to the technical field of LED lamp processing, and discloses a T8LED lamp processing pad printer, comprising: a pad printing steel plate platform, a support frame, a moving mechanism, a pad printing rubber head, a workbench, a conveyor belt and an LED lamp tube, wherein the pad printing steel plate platform is fixedly installed with support frames on both sides of the top, the support frame is movably installed with a moving mechanism on one side of the top, and a fixed frame is fixedly installed at the bottom of the moving mechanism. The T8LED lamp processing pad printer provided by the present application, by setting structures such as a movable guide rod, a shielding sleeve, a fixed block, a first movable conductive shaft, a hot and cold jet box, a nozzle, a second movable conductive shaft and a third movable conductive shaft, avoids the existing pad printing rubber head from having insufficient ink gelling during pad printing, thereby causing damage to the clarity of the pad-printed pattern, resulting in serious ghosting, displacement, pattern stretching and distortion, etc., and effectively prevents the ink from solidifying and adhering to the bottom of the pad printing rubber head, thereby achieving the effect of timely removing the ink.

Description

Technical Field

[0001] The present application relates to the technical field of LED lamp processing, and in particular to a pad printing machine for processing T8 LED lamps. Background Art

[0002] In the processing and production of existing T8LED lamps, it is necessary to perform pad printing of trademark patterns on one end of the LED lamps to complete the purpose of decorating the surface of the LED lamps. At present, pad printing equipment is generally used to complete the printing of the surface patterns of the T8LED lamps. The more commonly used is the oil-gu pad printing machine. The oil-gu pad printing machine is a new type of environmentally friendly ink pad printing equipment, which is generally composed of an oil-gu, a pad printing steel plate, a pad printing rubber head, a controller, an adjustment mechanism, a lifting handle, a driving device and other components. The working principle of the oil-gu pad printing machine is: the oil-gu filled with ink is moved back and forth on the surface of the pad printing steel plate in a straight line, and the ink in the oil-gu is filled into the concave pattern on the surface of the pad printing steel plate during the movement, and then the pad printing rubber head moves vertically downward to pick up the ink filled in the concave pattern, and then translates to the top of the printing workpiece, and then moves downward to press the ink that adheres to the surface of the pad printing rubber head to form a concave pattern on the surface of the printing workpiece, thereby completing the pad printing work.

[0003] When the existing LED lamp is processed and pad printed, the ink is easily affected by the environment. When the rubber head picks up the ink and pads it to the lamp tube, it is very easy for the ink to not yet form a gel and the viscosity is not high, resulting in the rubber head carrying ink with excessive fluidity for pad printing, which causes the clarity of the pad-printed pattern to be damaged, and will cause serious ghosting, displacement, pattern stretching and distortion and other problems, greatly reducing the pad printing quality. At the same time, after the pad printing is completed, some ink will remain on the surface of the rubber head, and when the rubber head performs the next ink adhesion pad printing, it will cause excessive ink, resulting in the pattern pad printing color being too dark, resulting in different pattern colors, and the ink will adhere to the surface of the rubber head for a long time, which will cause the rubber head to dry and crack, resulting in the problem that the rubber head is damaged and cannot be used normally. Summary of the invention

[0004] This application proposes a T8LED lamp processing pad printing machine, which has the advantages of autonomously enhancing the viscosity of the ink on the surface of the pad head, effectively removing the residual ink on the surface of the pad head, and ensuring the quality of pad printing. It is used to solve the problem that the viscosity of the ink on the surface of the existing pad head is insufficient and the residual ink on the surface of the pad head cannot be removed in time, resulting in poor pad printing quality.

[0005] To achieve the above-mentioned objectives, the present application adopts the following technical scheme: a T8LED lamp processing pad printing machine, comprising: a pad printing steel plate platform, a support frame, a moving mechanism, a pad printing rubber head, a workbench, a conveyor belt and an LED lamp tube, wherein the support frames are fixedly installed on both sides of the top of the pad printing steel plate platform, a moving mechanism is movably installed on one side of the top of the support frame, a fixed frame is fixedly installed on the bottom of the moving mechanism, a pad printing rubber head is fixedly installed on the bottom of the fixed frame, a workbench is fixedly installed on one side surface of the pad printing steel plate platform, a conveyor belt is movably installed on the top of the workbench, an LED lamp tube is arranged in a recess on the top of the conveyor belt, movable guide rods are fixedly installed on both sides of the bottom of the fixed frame, a shielding sleeve is movably installed on the bottom side surface of the movable guide rod, a fixed block located on the bottom side surface of the movable guide rod is fixedly installed in the middle of the shielding sleeve, a first movable conductive shaft is movably installed inside the fixed block, and a movable contact shaft is movably installed on the bottom side surface of the movable guide rod.

[0006] Furthermore, a hot and cold jet box is provided above the top of the workbench, and nozzles are fixedly installed on the inner surfaces of one side of the upper and lower ends of the hot and cold jet box, a second movable conductive shaft is movably installed inside one side of the bottom of the hot and cold jet box, and a third movable conductive shaft is movably installed inside one side of the top of the hot and cold jet box, an ink cleaning table is fixedly installed on the top of the hot and cold jet box, an ink collecting tray is movably installed inside the bottom end of the ink cleaning table, an ink scraper is movably installed on the inner surface of the ink cleaning table, a support plate is fixedly installed on the top of the ink cleaning table, a first electric telescopic rod is fixedly installed on the inner surface of one side of the support plate, a contact switch component is fixedly installed inside the outer surface of the ink cleaning table, and one end of the ink collecting tray is movably installed with a second electric telescopic rod located inside the outer surface of the ink cleaning table.

[0007] Furthermore, the fixing frame is in the shape of a rectangle, and a hole is provided on the surface of the fixing frame, and the length and width of the hole can be sufficient to allow the hot and cold jet boxes, the nozzle, the second movable conductive shaft, the third movable conductive shaft, the ink cleaning table, the ink collecting tray, the ink scraper, the support plate and the first electric telescopic rod to pass through. The overall shape of the movable guide rod is in the shape of an inverted "F", and there are a number of protrusions protruding outward on the surface of one side of the bottom of the movable guide rod, and the protrusions on the surface of one side of the bottom of the movable guide rod are conductive, and the position of the movable contact shaft on the surface of one side of the bottom of the movable guide rod is higher than the position of the protrusions on the surface of the bottom of the movable guide rod on the surface of one side of the bottom of the movable guide rod.

[0008] Furthermore, the side shape of the shielding sleeve is in the shape of a "7", and the shielding sleeve is movably connected to the bottom side surface of the movable guide rod through a hinge. The transverse section of the shielding sleeve is elastic, and the vertical section of the shielding sleeve is rigid and wear-resistant. The thickness of the vertical section of the shielding sleeve is adapted to the gap value between the protrusion on the bottom side surface of the movable guide rod and the outer surface of the hot and cold jet boxes, and the surface of the shielding sleeve is provided with a slot hole adapted to the size of the fixed block.

[0009] Furthermore, there are a total of several first movable conductive shafts, each of which is composed of a contact shaft, a spring and a fixed sleeve. A groove matching the diameter of the fixed sleeve of the first movable conductive shaft is provided inside the fixed block. The fixed sleeve of the first movable conductive shaft is fixedly installed at the deepest part of the groove, and the contact shaft of the first movable conductive shaft is located in the middle of the fixed sleeve of the first movable conductive shaft, and the contact shaft of the first movable conductive shaft is slidably connected to the fixed sleeve of the first movable conductive shaft. The spring sleeve of the first movable conductive shaft is arranged on the outer surface of the contact shaft of the first movable conductive shaft and between the contact shaft of the first movable conductive shaft and the fixed sleeve of the first movable conductive shaft. The contact shaft of the electric shaft is conductive, the structures of the second movable conductive shaft and the third movable conductive shaft are basically the same as that of the first movable conductive shaft, and the contact shafts of the second movable conductive shaft and the third movable conductive shaft are also conductive, and the differences among the first movable conductive shaft, the second movable conductive shaft and the third movable conductive shaft are that the contact shaft end of the third movable conductive shaft is in the shape of a flat head with an arc-shaped edge, while the contact shaft ends of the first movable conductive shaft and the second movable conductive shaft are in the shape of a round head, and the positions of the first movable conductive shaft and the third movable conductive shaft are not on the same vertical line as the position of the second movable conductive shaft, and the position of the first movable conductive shaft and the position of the third movable conductive shaft are on the same vertical line.

[0010] Furthermore, the shape of the hot and cold jet boxes is in a "concave" shape, the inner surface of the ink cleaning platform is inclined at one hundred and thirty-five degrees, one end surface of the ink scraper is slidably connected to the inner surface of the ink cleaning platform, the overall shape of the ink scraper is rectangular, and the two side edges of the ink scraper are inclined, a flexible wear-resistant plastic sleeve is provided on the edge surface of the ink scraper facing the pad printing rubber head, and a spring is provided between the bottom surface of the ink scraper and the lower surface of the inner surface of the ink cleaning platform.

[0011] Furthermore, the ink collecting tray is in a rectangular shape, and the interior of the ink collecting tray is in a groove shape. The bottom surface of the inner groove of the ink collecting tray is inclined, and the thickness of the inclined changes from thick to thin from the inside to the outside.

[0012] Furthermore, the contact switch element is conductive, the contact switch element is connected to the first electric telescopic rod through an electric wire, and the contact switch element is connected to the second electric telescopic rod through an electric wire. Beneficial Effects

[0013] The present application provides a T8 LED lamp processing pad printer, which is provided with structures such as a movable guide rod, a shielding sleeve, a fixed block, a first movable conductive shaft, a hot and cold jet box, a nozzle, a second movable conductive shaft and a third movable conductive shaft, so that a movable mechanism drives a pad printing rubber head downward to prepare for pad printing, and when passing through the bottom of the hot and cold jet box, low-temperature gas is blown out from the bottom of the hot and cold jet box, so that the viscosity of the ink on the surface of the pad printing rubber head increases and the fluidity decreases, and then forms a gel, thereby strengthening the adhesion between the ink on the bottom surface of the pad printing rubber head and the surface of the LED lamp tube, improving the pad printing quality and efficiency, and at the same time ensuring that the ink on the bottom surface of the pad printing rubber head is uniformly gelled, and the ink on the bottom surface of the pad printing rubber head can be fully adhered and fitted with the surface of the LED lamp tube, thereby avoiding the existing pad printing rubber head. The ink gelling degree is insufficient during pad printing, which causes the pad printing rubber head to have a damaged clarity of the pattern printed during pad printing, and will cause serious ghosting, displacement, pattern stretching and distortion and other problems.

[0014] By arranging structures such as a movable guide rod, a shielding sleeve, a fixed block, a first movable conductive shaft, a hot and cold jet box, a nozzle, a second movable conductive shaft and a third movable conductive shaft, when the pad printing rubber head completes pad printing, a high-speed airflow with hot temperature is generated by the heating pump air device inside the hot and cold jet box, and then the nozzle is aimed at the bottom surface of the pad printing rubber head for jet blowing, so that the ink remaining on the bottom surface of the pad printing rubber head is affected by the heat temperature, and the viscosity becomes smaller and the fluidity becomes larger, thereby effectively preventing the ink from solidifying and adhering to the bottom of the pad printing rubber head, avoiding the problem that the bottom of the pad printing rubber head is cracked due to excessive existing ink residue and too long residence time, and causing the bottom structure of the pad printing rubber head to be damaged.

[0015] At the same time, when the pad printing rubber head continues to move upward, the first electric telescopic rod and the second electric telescopic rod are used to respectively drive the ink scraper to move downward and the ink collecting tray to extend outward. When the ink scraper moves downward, one side edge of the ink scraper is close to the bottom surface of the pad printing rubber head to scrape off the residual ink. At the same time, the second electric telescopic rod pushes the ink collecting tray to move outward, so that the ink collecting tray receives the scraped ink under the bottom of the ink scraper, thereby achieving timely removal of ink and avoiding ink residue on the surface of the existing pad printing rubber head that cannot be removed in time, which leads to excessive ink when the pad printing rubber head performs the next ink adhesion pad printing, thereby causing the pattern pad printing color to be too heavy, resulting in the problem of inconsistent pattern colors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0017] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a front plan view schematic diagram of the structure of the present invention;

[0020] Figure 3 It is a schematic front view of the structural section of the present invention;

[0021] Figure 4 It is a schematic diagram of the state when the first movable conductive shaft and the third movable conductive shaft of the present invention are in contact with each other;

[0022] Figure 5 It is a schematic diagram of the state when the movable contact shaft of the present invention touches the contact switch element;

[0023] Figure 6 It is a three-dimensional schematic diagram of the pad printing rubber head and the movable guide rod of the present invention;

[0024] Figure 7 It is a three-dimensional schematic diagram of the workbench of the present invention;

[0025] Figure 8 For the present invention Figure 3 A partial enlarged schematic diagram of the structure at center A;

[0026] Fig. 9 For the present invention Figure 3 A partial enlarged schematic diagram of the structure at B in the middle;

[0027] Fig.10 For the present invention Figure 4 A partial enlarged schematic diagram of the structure at C in the middle;

[0028] Fig.11 For the present invention Figure 5 A partial enlarged schematic diagram of the structure at point D in the middle.

[0029] In the figure: 1. pad printing steel plate platform; 2. support frame; 3. moving mechanism; 4. fixed frame; 5. pad printing rubber head; 6. workbench; 7. conveyor belt; 8. LED lamp tube; 9. movable guide rod; 10. shielding sleeve; 11. fixed block; 12. first movable conductive shaft; 13. movable contact shaft; 14. hot and cold jet box; 15. nozzle; 16. second movable conductive shaft; 17. third movable conductive shaft; 18. ink cleaning station; 19. ink collecting tray; 20. ink scraper; 21. support plate; 22. first electric telescopic rod; 23. contact switch member; 24. second electric telescopic rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Example

[0031] See also Figure 1-Figure 11 A T8LED lamp processing pad printing machine comprises: a pad printing steel plate platform 1, a support frame 2, a moving mechanism 3, a pad printing rubber head 5, a workbench 6, a conveyor belt 7 and an LED lamp tube 8. The support frame 2 is fixedly installed on both sides of the top of the pad printing steel plate platform 1, the moving mechanism 3 is movably installed on one side of the top of the support frame 2, the fixing frame 4 is fixedly installed on the bottom of the moving mechanism 3, the pad printing rubber head 5 is fixedly installed on the bottom of the fixing frame 4, the workbench 6 is fixedly installed on one side surface of the pad printing steel plate platform 1, the conveyor belt 7 is movably installed on the top of the workbench 6, and the LED lamp tube 8 is arranged in the top depression of the conveyor belt 7, movable guide rods 9 are fixedly installed on both sides of the bottom of the fixing frame 4, a shielding sleeve 10 is movably installed in the bottom side surface of the movable guide rod 9, a fixed block 11 located on the bottom side surface of the movable guide rod 9 is fixedly installed in the middle of the shielding sleeve 10, a first movable conductive shaft 12 is movably installed inside the fixed block 11, and a movable contact shaft 13 is movably installed on the bottom side surface of the movable guide rod 9. Example

[0032] Based on Example 1, please refer to Figure 1-Figure 11A hot and cold jet box 14 is provided above the top of the workbench 6, and a nozzle 15 is fixedly installed on the inner surface of one side of the upper and lower ends of the hot and cold jet box 14, a second movable conductive shaft 16 is movably installed inside the bottom side of the hot and cold jet box 14, and a third movable conductive shaft 17 is movably installed inside the top side of the hot and cold jet box 14. An ink cleaning station 18 is fixedly installed on the top of the hot and cold jet box 14, and an ink collecting tray 19 is movably installed inside the bottom end of the ink cleaning station 18. An ink scraper 20 is movably installed on the inner surface of the ink cleaning station 18, a support plate 21 is fixedly installed on the top of the ink cleaning station 18, and a first electric telescopic rod 22 is fixedly installed on the inner surface of one side of the support plate 21, a contact switch member 23 is fixedly installed inside the outer surface of the ink cleaning station 18, and the ink collecting tray 19 is fixedly installed on the inner surface of the ink cleaning station 18. A second electric telescopic rod 24 located inside the outer surface of the ink cleaning station 18 is movably installed at one end. By setting structures such as a movable guide rod 9, a shielding sleeve 10, a fixed block 11, a first movable conductive shaft 12, a hot and cold jet box 14, a nozzle 15, a second movable conductive shaft 16 and a third movable conductive shaft 17, when the moving mechanism 3 drives the pad printing rubber head 5 downward to perform ink pad printing, the movable guide rod 9 moves downward with the pad printing rubber head 5. When the movable guide rod 9 moves to the bottom of the hot and cold jet box 14, that is, moves to the position of the second movable conductive shaft 16, at this time, because the movable guide rod 9 moves downward, the vertical section surface of the shielding sleeve 10 and the outer surface of the support plate 21, the ink cleaning station 18 and the hot and cold jet box 14 generate friction, and due to friction The resistance is opposite to the movement direction of the movable guide rod 9, and then under the action of the friction resistance and the top pressure of the contact shaft end of the second movable conductive shaft 16, the surface protrusions of the shielding sleeve 10 and the movable guide rod 9 are separated from each other, and then the vertical section of the shielding sleeve 10 can no longer block the surface protrusions of the movable guide rod 9, and the surface protrusions of the movable guide rod 9 are exposed to the outside, and then the surface protrusions of the movable guide rod 9 can touch the contact shaft end of the second movable conductive shaft 16, thereby achieving the power-on effect, so that the current is passed to the refrigeration pump gas equipment at the bottom of the hot and cold jet box 14. At the same time, after the shielding sleeve 10 is separated from the surface protrusions of the movable guide rod 9, it will move upward, so that the vertical section of the shielding sleeve 10 will block the surface of the fixed block 11, so that the first movable conductive shaft 12 retracts inwards and cannot extend outwards, and is electrically connected to the contact shaft end of the second movable conductive shaft 16 through the protrusion on the surface of the movable guide rod 9, so that the refrigeration pump gas equipment in the inner cavity at the bottom of the hot and cold jet box 14 is powered on, thereby generating a low-temperature and high-speed airflow, which is blown to the bottom surface of the pad printing rubber head 5 to cool the ink on the bottom surface of the pad printing rubber head 5. According to the characteristics of the ink, when the temperature drops, the viscosity of the ink increases and the fluidity decreases, and when the temperature rises, the viscosity of the ink decreases and the fluidity increases. Then, when the pad printing rubber head 5 moves downward to prepare for pad printing, when passing through the bottom of the hot and cold jet box 14, it is affected by the low-temperature gas blown from the bottom of the hot and cold jet box 14, and the viscosity of the ink on the surface of the pad printing rubber head 5 increases and the fluidity decreases, thereby forming a gelatinous state.Because the temperature of the low-temperature gas blown by the hot and cold jet box 14 is constant and meets the temperature value when the ink at the bottom of the pad printing rubber head 5 can be in a jelly state, it ensures that the ink at the bottom of the pad printing rubber head 5 is in a uniform jelly state. When the pad printing rubber head 5 passes through the hot and cold jet box 14 and reaches the top of the LED lamp tube 8 for pad printing, the ink on the bottom surface of the pad printing rubber head 5 can fully adhere to the surface of the LED lamp tube 8, thereby effectively avoiding the existing pad printing rubber head 5 from having insufficient ink jelly state during pad printing, resulting in excessive ink fluidity, which in turn causes the pad printing rubber head 5 to have a damaged clarity of the pattern printed during pad printing, and will cause serious ghosting, displacement, pattern stretching and distortion and other problems.

[0033] When the pad printing rubber head 5 is completed, the moving mechanism 3 drives the pad printing rubber head 5 to move upward. At this time, the movable guide rod 9 also moves upward with the pad printing rubber head 5. When the movable guide rod 9 moves upward, the vertical section surface of the shielding sleeve 10 again rubs against the outer surfaces of the hot and cold jet boxes 14, the ink cleaning station 18 and the support plate 21. Because the friction resistance is opposite to the movement direction of the movable guide rod 9, the shielding sleeve 10 is under the action of the friction resistance and the obstruction of the contact shaft end of the second movable conductive shaft 16. The shielding sleeve 10 is downwardly fitted with the surface protrusion of the movable guide rod 9 again. At this time, the vertical section of the shielding sleeve 10 blocks the surface protrusion of the movable guide rod 9 again, so that the surface protrusion of the movable guide rod 9 can no longer contact the contact shaft end of the second movable conductive shaft 16. At this time, the vertical section of the shielding sleeve 10 can no longer The surface of the pad printing rubber head 5 is blocked, and then under the action of the spring, the first movable conductive shaft 12 pops outward until the pad printing rubber head 5 moves to the top of the hot and cold jet box 14. At this time, the first movable conductive shaft 12 touches the end of the third movable conductive shaft 17, so that the external power supply current is conducted to the heating pump air device in the top cavity of the hot and cold jet box 14. The heating pump air device inside the hot and cold jet box 14 generates a high-speed airflow with hot temperature, which is aimed at the bottom surface of the pad printing rubber head 5 again through the nozzle 15 for jet blowing. At this time, the ink remaining on the bottom surface of the pad printing rubber head 5 is affected by the heat, and the viscosity becomes smaller and the fluidity becomes larger, thereby effectively preventing the ink from solidifying and adhering to the bottom of the pad printing rubber head 5, avoiding the problem that the existing ink residue is too much and the residence time is too long, resulting in the bottom of the pad printing rubber head 5 cracking, causing the bottom structure of the pad printing rubber head 5 to be damaged.

[0034] At the same time, when the pad printing rubber head 5 continues to move upward, if the pad printing rubber head 5 moves to the position of the ink cleaning station 18, at this time, the end of the movable contact shaft 13 touches the contact switch 23, and the electrical signal is transmitted to the existing control system. Through the internal control module of the existing control system, the first electric telescopic rod 22 and the second electric telescopic rod 24 are energized, so that the first electric telescopic rod 22 and the second electric telescopic rod 24 are energized and operated. At the same time, the mobile mechanism 3 is temporarily powered off, that is, the pad printing rubber head 5 is suspended, and the stay time is based on The downward movement and extension rates of the first electric telescopic rod 22 and the second electric telescopic rod 24 are set and adjusted accordingly. During this period, the telescopic end of the first electric telescopic rod 22 moves downward, thereby pushing the ink scraper 20 to move downward. When the ink scraper 20 moves downward, one side edge of the ink scraper 20 is close to the bottom surface of the pad printing rubber head 5 for scraping. Because the pad printing rubber head 5 is heated by the hot gas when passing through the top of the hot and cold jet box 14, the ink on the bottom surface of the pad printing rubber head 5 is no longer solidified and has greater fluidity, so the ink scraper 20 can be easily The ink on the bottom surface of the pad printing rubber head 5 can be easily scraped off. At the same time, the telescopic end of the second electric telescopic rod 24 extends outward, thereby pushing the ink collecting tray 19 to move outward. Since the first electric telescopic rod 22 and the second electric telescopic rod 24 move and extend at the same time and the frequency is adapted, the distance that the ink collecting tray 19 moves outward is proportional to the distance that the ink scraping blade 20 moves downward. Therefore, when the ink scraping blade 20 scrapes off the ink, the ink collecting tray 19 receives the scraped ink below the bottom of the ink scraping blade 20. When the ink falls into the groove in the top of the ink collecting tray 19, the bottom surface of the groove is inclined. Then the ink flows along the inclined surface to the inner side of the ink collecting tray 19, thereby being collected centrally, thereby preventing the scraped ink from dripping downwards and causing secondary pollution to the LED lamp 8 below. At the same time, the ink scraper 20 is used to effectively and timely scrape off the ink remaining at the bottom of the pad printing rubber head 5, thereby achieving timely removal of the ink, avoiding ink residue on the surface of the existing pad printing rubber head 5 that cannot be removed in time, thereby causing the pad printing rubber head 5 to have excessive ink when performing the next ink adhesion pad printing, thereby causing the pattern pad printing color to be too heavy, resulting in the problem of inconsistent pattern colors.

[0035] See also Figure 1-Figure 11 The fixing frame 4 is rectangular in shape, and a hole is provided on the surface of the fixing frame 4, and the length and width of the hole can satisfy the passage of the hot and cold jet box 14, the nozzle 15, the second movable conductive shaft 16, the third movable conductive shaft 17, the ink cleaning station 18, the ink collecting tray 19, the ink scraping blade 20, the support plate 21 and the first electric telescopic rod 22. The overall shape of the movable guide rod 9 is an inverted "F" shape, and there are a total of several protrusions protruding outward on the surface of one side of the bottom of the movable guide rod 9. The protrusion on the surface of one side of the bottom of the movable guide rod 9 is conductive, and the position of the movable contact shaft 13 on the surface of one side of the bottom of the movable guide rod 9 is higher than the position of the protrusion on the bottom surface of the movable guide rod 9 on the surface of one side of the bottom of the movable guide rod 9.

[0036] See also Figure 1-Figure 11 The side shape of the shielding sleeve 10 is in the shape of a "7". The shielding sleeve 10 is movably connected to the bottom side surface of the movable guide rod 9 through a hinge. The transverse section of the shielding sleeve 10 is elastic, and the vertical section of the shielding sleeve 10 is rigid and wear-resistant. The thickness of the vertical section of the shielding sleeve 10 is adapted to the gap value between the protrusion on the bottom side surface of the movable guide rod 9 and the outer surface of the hot and cold jet box 14. The surface of the shielding sleeve 10 is provided with a slot hole adapted to the size of the fixing block 11.

[0037] See also Figure 1-Figure 11 There are a total of several first movable conductive shafts 12, each of which is composed of a contact shaft, a spring and a fixed sleeve. A groove matching the diameter of the fixed sleeve of the first movable conductive shaft 12 is provided inside the fixed block 11, and the fixed sleeve of the first movable conductive shaft 12 is fixedly installed at the deepest part of the groove, and the contact shaft of the first movable conductive shaft 12 is located in the middle of the fixed sleeve of the first movable conductive shaft 12, and the contact shaft of the first movable conductive shaft 12 is slidably connected to the fixed sleeve of the first movable conductive shaft 12, the spring sleeve of the first movable conductive shaft 12 is arranged on the outer surface of the contact shaft of the first movable conductive shaft 12, and is arranged between the contact shaft of the first movable conductive shaft 12 and the fixed sleeve of the first movable conductive shaft 12, the contact shaft of the first movable conductive shaft 12 is conductive, the structures of the second movable conductive shaft 16 and the third movable conductive shaft 17 are basically the same as those of the first movable conductive shaft 12, and the second movable conductive shaft 16 The contact shafts of the first movable conductive shaft 12, the second movable conductive shaft 16 and the third movable conductive shaft 17 are also conductive. The differences between the first movable conductive shaft 12, the second movable conductive shaft 16 and the third movable conductive shaft 17 are as follows: the contact shaft end of the third movable conductive shaft 17 is in the shape of a flat head with an arc-shaped edge, while the contact shaft ends of the first movable conductive shaft 12 and the second movable conductive shaft 16 are in the shape of a round head, and the positions of the first movable conductive shaft 12 and the third movable conductive shaft 17 are not on the same vertical line as the position of the second movable conductive shaft 16, and the position of the first movable conductive shaft 12 and the position of the third movable conductive shaft 17 are on the same vertical line. In addition, the position of the movable contact shaft 13 is not on the same vertical line as the positions of the first movable conductive shaft 12 and the third movable conductive shaft 17. At the same time, the contact switch element 23 is not on the same vertical line as the second movable conductive shaft 16 and the third movable conductive shaft 17, and the movable contact shaft 13 is on the same vertical line as the contact switch element 23.

[0038] See also Figure 1-Figure 11The shape of the hot and cold jet boxes 14 is in a "concave" shape, the inner surface of the ink cleaning platform 18 is inclined at one hundred and thirty-five degrees, one end surface of the ink scraper 20 is slidably connected to the inner surface of the ink cleaning platform 18, the overall shape of the ink scraper 20 is rectangular, and the two side edges of the ink scraper 20 are inclined, and a flexible wear-resistant plastic sleeve is provided on the edge surface of the ink scraper 20 facing the pad printing rubber head 5. When scraping off the residual ink at the bottom of the pad printing rubber head 5, the surface of the pad printing rubber head 5 can be prevented from being damaged, and secondary damage can be avoided. A spring is provided between the bottom surface of the ink scraper 20 and the lower surface of the inner surface of the ink cleaning platform 18.

[0039] See also Figure 1-Figure 11 The ink collecting tray 19 is in a rectangular shape, and the interior of the ink collecting tray 19 is in a groove shape. The bottom surface of the inner groove of the ink collecting tray 19 is inclined, and the thickness of the inclined changes from thick to thin from the inside to the outside.

[0040] See also Figure 1-Figure 11 The contact switch element 23 is conductive, and is connected to the first electric telescopic rod 22 through an electric conductor, and is connected to the second electric telescopic rod 24 through an electric conductor.

[0041] The working principle of the method of the present invention is as follows:

[0042] When the LED lamp tube 8 needs to be processed and printed, first, start the existing pad printing machine drive equipment and control system, and start the moving mechanism 3 and the conveyor belt 7. The conveyor belt 7 is powered on and starts to run continuously, showing a continuous conveying state. At this time, the LED lamp tube 8 is manually held and placed into the groove at the top of the conveyor belt 7 in sequence, and the LED lamp tube 8 is fixed in position. The conveyor belt 7 is used to drive the LED lamp tube 8 to move forward continuously. When the conveyor belt 7 drives the LED lamp tube 8 to move to the position of the pad printing rubber head 5, before that, the oil jar filled with ink moves back and forth on the surface of the pad printing steel plate in a straight line, and the ink in the oil jar fills the pad printing steel plate during the movement. The concave pattern on the surface is formed, and then the pad printing rubber head 5 is driven by the moving mechanism 3 to move vertically downward to pick up the ink filled in the concave pattern, and then it is translated to the top of the LED lamp tube 8. At this time, the bottom of the pad printing rubber head 5 is exactly opposite to the position on the surface of the LED lamp tube 8 to be printed. The moving mechanism 3 is controlled to move downward by the existing control system, and then the moving mechanism 3 drives the pad printing rubber head 5 downward together to start preparing for ink pad printing. When the pad printing rubber head 5 moves downward, at this time, the movable guide rod 9 moves downward with the pad printing rubber head 5. When the movable guide rod 9 moves to the bottom of the hot and cold jet box 14, that is, moves to the position of the second movable conductive shaft 16, you can refer to Figure 3The moving state of each component in the shielding sleeve 10 is that when the movable guide rod 9 moves downward, the vertical section surface of the shielding sleeve 10 is always in close contact with the outer surface of the support plate 21, the ink cleaning table 18 and the hot and cold jet box 14, and then under the action of the moving force of the movable guide rod 9, the vertical section surface of the shielding sleeve 10 and the outer surface of the support plate 21, the ink cleaning table 18 and the hot and cold jet box 14 produce friction, that is, a certain friction resistance is generated. Because the friction resistance is opposite to the movement direction of the movable guide rod 9, and because the shielding sleeve 10 is movably connected to the movable guide rod 9, under the friction resistance and the top pressure of the contact shaft end of the second movable conductive shaft 16, the shielding sleeve 10 and the movable guide rod 9 surface protrusions are separated from each other and are no longer in close contact. When the shielding sleeve 10 is separated from the movable guide rod 9, the vertical section of the shielding sleeve 10 can no longer block the raised surface of the movable guide rod 9, and the raised surface of the movable guide rod 9 contacts the contact shaft end of the second movable conductive shaft 16. At the same time, after the shielding sleeve 10 is separated from the raised surface of the movable guide rod 9, it will move upward, so that the vertical section of the shielding sleeve 10 will block the surface of the fixed block 11, causing the first movable conductive shaft 12 to retract inward and unable to extend outward. Because the raised surface of the movable guide rod 9 and the contact shaft end of the second movable conductive shaft 16 are both conductive, the current can be passed to the bottom refrigeration pump gas equipment of the hot and cold jet box 14 through conduction between the movable guide rod 9 and the second movable conductive shaft 16.

[0043] Among them, the outer surface of the movable guide rod 9 is provided with a plurality of power supply components, which respectively energize the movable guide rod 9 and the first movable conductive shaft 12, so that when the movable guide rod 9 contacts the second movable conductive shaft 16 and the first movable conductive shaft 12 contacts the third movable conductive shaft 17, the current of the external power supply can be transmitted through the movable guide rod 9, the second movable conductive shaft 16, the first movable conductive shaft 12 and the third movable conductive shaft 17, so that the external power supply can be respectively connected to the refrigeration pump gas equipment in the bottom inner cavity of the cold and hot jet box 14 and the top inner cavity of the cold and hot jet box 14. The heating pumping air equipment forms a passage to power the refrigeration pumping air equipment in the bottom inner cavity of the cold and hot jet box 14 and the heating pumping air equipment in the top inner cavity of the cold and hot jet box 14 to make them operate, wherein the refrigeration pumping air equipment in the bottom inner cavity of the cold and hot jet box 14 has the same structure as the existing condenser and air pump, and the heating pumping air equipment in the top inner cavity of the cold and hot jet box 14 has the same structure as the existing heater and air pump, and the air pumps arranged in the top and bottom inner cavities of the cold and hot jet box 14 are respectively connected to the nozzle 15, so that when the gas is generated and pumped out, it can be ejected outward through the nozzle 15.

[0044] When the current flows to the refrigeration pump gas equipment in the bottom inner cavity of the hot and cold jet box 14, the refrigeration pump gas equipment in the bottom inner cavity of the hot and cold jet box 14 is powered on, thereby generating a low-temperature and high-speed airflow, which is blown to the bottom surface of the pad printing rubber head 5 through the nozzle 15 to cool the ink on the bottom surface of the pad printing rubber head 5. According to the characteristics of the ink, when the temperature drops, the greater the viscosity of the ink, the smaller the fluidity, and when the temperature rises, the smaller the viscosity of the ink, the greater the fluidity, and then when the pad printing rubber head 5 moves downward to prepare for pad printing, when passing through the bottom of the hot and cold jet box 14, it is affected by the low-temperature gas blown out from the bottom of the hot and cold jet box 14, and the viscosity of the ink on the surface of the pad printing rubber head 5 becomes larger and the fluidity becomes smaller, thereby forming a gel. Among them, the gas temperature blown out by the hot and cold jet box 14 can be adjusted according to the appropriate temperature when the ink is in a gel state. Similarly, the hot and warm gas blown out by the hot and cold jet box 14 is also adjusted according to the appropriate temperature when the ink is melted.

[0045] Because the temperature of the low-temperature gas blown out by the hot and cold jet box 14 is constant and satisfies the temperature value when the ink at the bottom of the pad printing rubber head 5 can be in a gel state, it ensures that the ink at the bottom of the pad printing rubber head 5 is in a gel state, thereby ensuring that the ink at the bottom of the pad printing rubber head 5 is in a uniform gel state. Therefore, when the pad printing rubber head 5 passes through the hot and cold jet box 14 and reaches the top of the LED lamp tube 8 for pad printing, the ink on the bottom surface of the pad printing rubber head 5 can be fully adhered to the surface of the LED lamp tube 8, thereby effectively avoiding the existing pad printing rubber head 5 from having insufficient gel state during pad printing, resulting in excessive ink fluidity, which in turn causes the pad printing rubber head 5 to damage the clarity of the pattern printed by the pad printing rubber head 5 during pad printing, and will cause serious ghosting, displacement, pattern stretching and distortion and other problems.

[0046] When the pad printing rubber head 5 is completed, the moving mechanism 3 drives the pad printing rubber head 5 to move upward, and the movable guide rod 9 also moves upward with the pad printing rubber head 5. When the movable guide rod 9 moves upward, the surface of the vertical section of the shielding sleeve 10 again rubs against the outer surfaces of the hot and cold jet boxes 14, the ink cleaning station 18 and the support plate 21. Because the friction resistance is opposite to the movement direction of the movable guide rod 9, the shielding sleeve 10 is under the action of the friction resistance and the obstruction of the contact shaft end of the second movable conductive shaft 16. The shielding sleeve 10 is downwardly fitted with the surface protrusion of the movable guide rod 9 again. At this time, the vertical section of the shielding sleeve 10 again blocks the surface protrusion of the movable guide rod 9, so that the surface protrusion of the movable guide rod 9 can no longer contact the contact shaft end of the second movable conductive shaft 16. At the same time, the vertical section of the shielding sleeve 10 does not Then, the surface of the fixed block 11 is blocked. Under the action of the spring, the first movable conductive shaft 12 pops outward until the pad printing rubber head 5 moves to the top of the hot and cold jet box 14. The first movable conductive shaft 12 touches the end of the third movable conductive shaft 17, thereby conducting the external power supply current to the heating pumping equipment in the top cavity of the hot and cold jet box 14. According to the operation steps of the refrigeration pumping equipment in the bottom cavity of the hot and cold jet box 14, it can be known that the heating pumping equipment inside the hot and cold jet box 14 will generate a high-speed airflow with hot temperature, and the nozzle 15 will be used to blow the bottom surface of the pad printing rubber head 5 again. At this time, the ink remaining on the bottom surface of the pad printing rubber head 5 is affected by the heat, and the viscosity becomes smaller and the fluidity becomes larger, thereby preventing the ink from solidifying and adhering to the bottom of the pad printing rubber head 5.

[0047] At the same time, the pad printing rubber head 5 continues to move upward. When the pad printing rubber head 5 moves to the position of the ink cleaning station 18, the end of the movable contact shaft 13 contacts the contact switch member 23. The structure of the movable contact shaft 13 is basically the same as that of the first movable conductive shaft 12, and is also composed of a contact shaft, a spring and a fixed sleeve. At the same time, a shielding sleeve 10 and a fixed block 11 are provided on the outside of the movable contact shaft 13. Figure 8The structural distribution of the movable contact shaft 13 is shown in the figure. When the end of the movable contact shaft 13 touches the contact switch 23, the contact contact action is converted into an electrical signal through the contact detection module, that is, the electrical signal generated by the combination of the capacitor and the inductor will be sent to the control circuit. When the electrical signal is transmitted to the existing control system, that is, the control circuit, the first electric telescopic rod 22 and the second electric telescopic rod 24 are energized through the internal control module of the existing control system, so that the first electric telescopic rod 22 and the second electric telescopic rod 24 are energized and operated. At the same time, the mobile mechanism 3 is temporarily stopped from supplying power, thereby pausing the movement of the pad printing rubber head 5. The dwell time is set and adjusted accordingly according to the downward movement and extension rate of the first electric telescopic rod 22 and the second electric telescopic rod 24, that is, the stop The retention time is equal to the time value required for the first electric telescopic rod 22 to push the ink scraper 20 from the upper end to the lower end. Similarly, it is also equal to the time value required for the second electric telescopic rod 24 to push the ink collecting tray 19 from the innermost side to the outermost side. During this period, the telescopic end of the first electric telescopic rod 22 moves downward, pushing the ink scraper 20 to move downward. When the ink scraper 20 moves downward, one side edge of the ink scraper 20 is close to the bottom surface of the pad printing rubber head 5 for scraping action. When the pad printing rubber head 5 passes through the top of the hot and cold jet box 14, it is heated by the hot gas, and the ink on the bottom surface of the pad printing rubber head 5 is no longer solidified and has greater fluidity. Therefore, the ink scraper 20 can easily scrape off the ink on the bottom surface of the pad printing rubber head 5, thereby achieving the effect of removing the residual ink at the bottom of the pad printing rubber head 5.

[0048] At the same time, the telescopic end of the second electric telescopic rod 24 extends outward, pushing the ink collecting tray 19 to move outward. The ink collecting tray 19 can receive the scraped ink below the bottom of the ink scraper 20. When the ink falls into the inner groove at the top of the ink collecting tray 19, the bottom surface of the groove is inclined, and the ink flows along the inclined surface to the inner side of the ink collecting tray 19, thereby being collected and concentrated, thereby preventing the scraped ink from dripping downward and causing secondary pollution to the LED lamp 8 below. At the same time, the effect of timely removing the ink is achieved.

[0049] When the dwell time reaches the limit, at this time, the existing control system transmits an electrical signal to the driving device of the mobile mechanism 3, so that the mobile mechanism 3 resumes power supply, thereby driving the pad printing rubber head 5 to continue moving. At the same time, the first electric telescopic rod 22 and the second electric telescopic rod 24 are retracted and reset. The second electric telescopic rod 24 drives the ink collecting tray 19 to move inward and reset, the first electric telescopic rod 22 moves upward and retracts, and the ink scraper 20 rebounds and resets under the action of the spring. When the mobile mechanism 3 drives the pad printing rubber head 5 to move upward and is located above the top of the support plate 21, at this time, the pad printing rubber head 5 is driven by the mobile mechanism 3 to move backward and reset to the location of the oil pond again to prepare for the next ink dipping pad printing work. When the pad printing rubber head 5 moves to the top of the LED lamp tube 8 again to prepare for pad printing, the above steps will be repeated for operation until the LED lamp tube 8 completes all pad printing. When the LED lamp tube 8 completes pad printing, the existing pad printing machine driving equipment and control system are turned off, and the mobile mechanism 3 and the conveyor belt 7 are started.

Claims

1. A T8LED lamp processing pad printer, characterized in that: include: A pad printing steel plate platform (1), a support frame (2), a moving mechanism (3), a pad printing rubber head (5), a workbench (6), a conveyor belt (7) and an LED light tube (8), wherein the support frame (2) is fixedly installed on both sides of the top of the pad printing steel plate platform (1), the moving mechanism (3) is movably installed on one side of the top of the support frame (2), a fixed frame (4) is fixedly installed on the bottom of the moving mechanism (3), a pad printing rubber head (5) is fixedly installed on the bottom of the fixed frame (4), and the workbench (6) is fixedly installed on one side of the surface of the pad printing steel plate platform (1) A conveyor belt (7) is movably mounted on the top of the workbench (6), an LED lamp tube (8) is arranged in a recessed area at the top of the conveyor belt (7), movable guide rods (9) are fixedly mounted on both sides of the bottom of the fixing frame (4), a shielding sleeve (10) is movably mounted on the bottom side surface of the movable guide rod (9), a fixed block (11) located on the bottom side surface of the movable guide rod (9) is fixedly mounted in the middle of the shielding sleeve (10), a first movable conductive shaft (12) is movably mounted inside the fixed block (11), and the movable guide rod ( A movable contact shaft (13) is movably mounted on the bottom side surface of the workbench (9), a hot and cold jet box (14) is arranged above the top of the workbench (6), a nozzle (15) is fixedly mounted on the inner surface of one side of the upper and lower ends of the hot and cold jet box (14), a second movable conductive shaft (16) is movably mounted inside the bottom side of the hot and cold jet box (14), a third movable conductive shaft (17) is movably mounted inside the top side of the hot and cold jet box (14), an ink cleaning station (18) is fixedly mounted on the top of the hot and cold jet box (14), and the ink cleaning station (18) is fixedly mounted on the top of the hot and cold jet box (14). An ink collecting tray (19) is movably mounted inside the bottom end of the platform (18), an ink scraper (20) is movably mounted on the inner surface of the ink cleaning platform (18), a support plate (21) is fixedly mounted on the top end of the ink cleaning platform (18), a first electric telescopic rod (22) is fixedly mounted on the inner surface of one side of the support plate (21), a contact switch component (23) is fixedly mounted inside the outer surface of the ink cleaning platform (18), and a second electric telescopic rod (24) located inside the outer surface of the ink cleaning platform (18) is movably mounted on one end of the ink collecting tray (19).

2. A T8LED lamp processing pad printer according to claim 1, characterized in that: The fixing frame (4) is rectangular in shape, and a hole is formed on the surface of the fixing frame (4), and the length and width of the hole are sufficient to allow the hot and cold jet boxes (14), the nozzles (15), the second movable conductive shaft (16), the third movable conductive shaft (17), the ink cleaning table (18), the ink collecting tray (19), the ink scraping blade (20), the support plate (21), and the first electric telescopic rod (22) to pass through. The overall shape of the movable guide rod (9) is an inverted "F" shape, and a plurality of protrusions protruding outward are provided on the surface of one side of the bottom of the movable guide rod (9), and the protrusions on the surface of one side of the bottom of the movable guide rod (9) are conductive. The position of the movable contact shaft (13) on the surface of one side of the bottom of the movable guide rod (9) is higher than the position of the protrusions on the surface of the bottom of the movable guide rod (9) on the surface of one side of the bottom of the movable guide rod (9).

3. The T8LED lamp processing pad printer according to claim 2, characterized in that: The side profile of the shielding sleeve (10) is in the shape of a "7". The shielding sleeve (10) is movably connected to the bottom side surface of the movable guide rod (9) via a hinge. The transverse section of the shielding sleeve (10) is elastic. The vertical section of the shielding sleeve (10) is rigid and wear-resistant. The thickness of the vertical section of the shielding sleeve (10) is compatible with the gap value between the protrusion on the bottom side surface of the movable guide rod (9) and the outer surface of the hot and cold jet box (14). The surface of the shielding sleeve (10) is provided with a slot hole that is compatible with the size of the fixing block (11).

4. The T8 LED lamp processing pad printer according to claim 3, characterized in that: There are a plurality of first movable conductive shafts (12), each of which is composed of a contact shaft, a spring and a fixed sleeve. A groove matching the diameter of the fixed sleeve of the first movable conductive shaft (12) is provided inside the fixed block (11). The fixed sleeve of the first movable conductive shaft (12) is fixedly installed at the deepest part of the groove, and the contact shaft of the first movable conductive shaft (12) is located in the middle of the fixed sleeve of the first movable conductive shaft (12). The contact shaft of the first movable conductive shaft (12) is slidably connected to the fixed sleeve of the first movable conductive shaft (12). The spring sleeve of the first movable conductive shaft (12) is arranged on the outer surface of the contact shaft of the first movable conductive shaft (12) and between the contact shaft of the first movable conductive shaft (12) and the fixed sleeve of the first movable conductive shaft (12). The contact shaft of the first movable conductive shaft (12) The invention relates to a movable conductive shaft having conductivity, wherein the structures of the second movable conductive shaft (16) and the third movable conductive shaft (17) are substantially the same as the structure of the first movable conductive shaft (12), and the contact shafts of the second movable conductive shaft (16) and the third movable conductive shaft (17) are also conductive, and the first movable conductive shaft (12), the second movable conductive shaft (16) and the third movable conductive shaft (17) are different in that the contact shaft end of the third movable conductive shaft (17) is in the shape of a flat head with an arc-shaped edge, while the contact shaft ends of the first movable conductive shaft (12) and the second movable conductive shaft (16) are in the shape of a round head, and the positions of the first movable conductive shaft (12) and the third movable conductive shaft (17) are not on the same vertical line as the position of the second movable conductive shaft (16), and the position of the first movable conductive shaft (12) and the position of the third movable conductive shaft (17) are on the same vertical line.

5. The T8LED lamp processing pad printer according to claim 4, characterized in that: The hot and cold jet boxes (14) are in the shape of a "concave" character. The inner surface of the ink cleaning platform (18) is inclined at 135 degrees. One end surface of the ink scraper (20) is slidably connected to the inner surface of the ink cleaning platform (18). The overall shape of the ink scraper (20) is rectangular, and the two side edges of the ink scraper (20) are inclined. A flexible wear-resistant plastic sleeve is provided on the edge surface of one side of the ink scraper (20) facing the pad printing rubber head (5). A spring is provided between the bottom surface of the ink scraper (20) and the lower surface of the inner surface of the ink cleaning platform (18).

6. The T8 LED lamp processing pad printer according to claim 5, characterized in that: The ink collecting tray (19) is in the shape of a rectangle, and the interior of the ink collecting tray (19) is in the shape of a groove. The bottom surface of the inner groove of the ink collecting tray (19) is in an inclined shape, and the thickness of the inclined shape changes from thick to thin from the inside to the outside.

7. The T8 LED lamp processing pad printer according to claim 6, characterized in that: The contact switch component (23) is conductive, the contact switch component (23) is connected to the first electric telescopic rod (22) via an electric conductor, and the contact switch component (23) is connected to the second electric telescopic rod (24) via an electric conductor.

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