Digital jet printing equipment for PVC (polyvinyl chloride) edge band

Abstract

The utility model discloses digital jet printing equipment for a PVC (polyvinyl chloride) edge band, which comprises an equipment body. The ink supply device is arranged on the equipment body, the printing spray head is arranged on the equipment body in a sliding mode, the printing bearing table is arranged on the equipment body and located below the printing spray head, the unwinding device is arranged on one side of the equipment body, and the winding device is arranged on the other side of the equipment body. The ink supply device is connected with the printing nozzle to supply ink to the printing nozzle; a limiting groove is formed in the printing bearing table; therefore, the PVC edge sealing strip can be subjected to jet printing treatment so as to meet the use requirement of plate and edge integration, and the edge sealing use experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray printing, in particular to a digital spray printing device for PVC edge banding strips. Background Art

[0002] Edge banding is an auxiliary material used to protect and decorate the cross-section of home and furniture panels. In home and furniture manufacturing, edge banding can not only provide waterproof and beautifying effects, but also effectively prevent the volatilization of harmful substances (such as formaldehyde) inside the panels. Common edge banding materials include ABS, metal, acrylic and PVC, among which PVC edge banding occupies the mainstream position in the market with its excellent performance and low cost.

[0003] Traditional edge banding is mainly black, white, gray, brown and other basic colors, and its function focuses on waterproofing and protecting the board. Although these edge bandings perform well in terms of functionality, they are limited in decorative effect. With the rise of the customized panel furniture market and the improvement of consumers' requirements for home decoration, users have put forward the demand for "board edge integration", that is, the color, texture and even touch of PVC edge banding and board should be consistent. However, the existing PVC edge banding obviously cannot meet the above requirements. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a digital printing device for PVC edge banding strips, so that the PVC edge banding strips can be printed to meet the use requirements of "board edge integration" and improve the edge banding user experience.

[0005] To achieve the above purpose, the specific scheme of the utility model is as follows:

[0006] A digital printing device for PVC edge banding strips comprises a device body, an ink supply device arranged on the device body, a print head slidably arranged on the device body, a print support platform arranged on the device body and below the print head, a reeling device arranged on one side of the device body and a reeling device arranged on the other side of the device body; the ink supply device is connected to the print head to supply ink to the print head; and a limiting groove is arranged on the print support platform.

[0007] Optionally, the ink supply device includes an ink cartridge, on which a liquid level alarm is provided; the ink cartridge is also provided with a stirring pump; and the ink cartridge is also provided with a heating module.

[0008] Optionally, adsorption holes are provided at intervals throughout the limiting groove along its length direction, and the adsorption holes are connected to adsorption nozzles.

[0009] Optionally, an adsorption groove is arranged at the bottom of the limiting groove, and the adsorption holes are arranged on the bottom of the adsorption groove.

[0010] Optionally, the printing platform is provided with a heating hole extending along the length direction of the limiting groove, and a heating rod is provided in the heating hole.

[0011] Optionally, the device body is provided with a drying device between the printing support platform and the winding device.

[0012] Optionally, the equipment body is provided with a positioning device above the winding device for clamping and positioning the PVC edge banding strip;

[0013] The positioning device includes a first guide roller rotatably connected to the equipment body, two first limiting rollers rotatably connected to the equipment body and distributed on both sides of the first guide roller, one end of the first guide roller is connected to a first driving member for driving the first guide roller to rotate, and the first driving member is installed on the equipment body.

[0014] Optionally, the positioning device further comprises a material pressing mechanism provided on the equipment body and located above the first guide roller;

[0015] The material pressing mechanism comprises a material pressing driving member arranged on the equipment body, a material pressing shaft rotatably connected to the equipment body, and a material pressing unit sleeved on the material pressing shaft; one end of the material pressing shaft is connected to a swing rod, and the swing rod is connected to the output end of the material pressing driving member;

[0016] The pressing unit includes a pressing seat fixedly connected to the equipment body, a pressing plate hinged on the pressing seat and a pressing roller axially connected to one end of the pressing plate. A tension spring is connected between the other end of the pressing plate and the pressing seat, and the tension spring causes the other end of the pressing plate to be in an upward tilted state; a pressing platform in contact with the surface of the pressing plate is arranged on the outer wall of the pressing shaft corresponding to the position of the pressing plate.

[0017] Optionally, the unwinding device and the rewinding device both include a rewinding support, the rewinding support is provided with a mounting position, the mounting position is movably provided with a film winder, two second guide rollers are installed on the rewinding support at intervals, and the periphery of the film winder contacts the roller surface of the second guide roller;

[0018] The unwinding device and the rewinding device both further include a power assembly installed on the rewinding and unwinding support, and the power assembly is connected to one of the second guide rollers to drive the second guide roller to rotate.

[0019] Optionally, a second limiting roller is provided on the device body at a side of the printing platform close to the unwinding device.

[0020] The beneficial effects of the utility model are as follows: the utility model arranges a unwinding device and a rewinding device on both sides of the equipment body, arranges an ink supply device, a printing nozzle and a printing support platform on the equipment body, and arranges a limiting groove on the printing support platform, so that the PVC edge banding strip can be printed to meet the use requirements of "board edge integration" and improve the edge banding use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0023] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0024] Figure 4 It is a partial structural schematic diagram of the utility model;

[0025] Figure 5 It is a partial structural schematic diagram of the ink supply device of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the printing carrier provided by the utility model;

[0027] Figure 7 yes Figure 6 A local enlarged schematic diagram of the middle A;

[0028] Figure 8 It is another structural schematic diagram of the printing support platform provided by the utility model;

[0029] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0030] Fig.10 It is a structural schematic diagram of the unwinding device or the rewinding device of the utility model;

[0031] Fig.11 It is a partial structural schematic diagram of the unwinding device or the rewinding device of the utility model;

[0032] Fig.12 It is a cross-sectional schematic diagram of the film winder of the utility model;

[0033] Fig.13 It is a cross-sectional schematic diagram of the drying device of the utility model;

[0034] Fig.14 It is a structural schematic diagram of the positioning device of the utility model;

[0035] Fig.15 It is a cross-sectional schematic diagram of the positioning device of the utility model;

[0036] Fig.16 It is a cross-sectional schematic diagram of the material pressing unit of the utility model;

[0037] Fig.17 It is a cross-sectional schematic diagram of the second material pressing mechanism of the utility model;

[0038] Description of the accompanying drawings: 1. Equipment body; 11. Second limiting roller; 2. Ink supply device; 21. Ink storage box; 22. Ink cartridge; 23. Liquid level alarm; 24. Stirring pump; 25. Heating module; 3. Print nozzle; 4. Print carrier; 41. Limiting groove; 42. Adsorption hole; 43. Adsorption groove; 44. Heating hole; 45. First plate body; 46. Second plate body; 5. Unwinding device; 6. Rewinding device; 7. Drying device; 71. Drying seat; 72. Infrared quartz heater; 73. Exhaust fan; 8. Positioning device; 81. First guide roller; 82. First limiting roller; 83. First driving member; 84. First pressing mechanism; 9. Second pressing mechanism;

[0039] 101, material pressing driving member; 102, material pressing shaft; 103, swing rod; 104, pressing platform; 105, material pressing seat; 106, pressing plate; 107, pressing roller; 108, handle; 109, pressing arm;

[0040] 102, 201, reel support; 202, film winder; 2021, first disk; 2022, second disk; 2023, first reel; 2024, second reel; 2025, magnet; 2026, iron sheet; 203, second guide roller; 2041, power motor; 2042, first gear; 2043, second gear. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0042] like Figures 1 to 17 As shown, the digital printing device for PVC edge banding strips described in this embodiment includes a device body 1, an ink supply device 2 arranged on the device body 1, a print head 3 slidably arranged on the device body 1, a print support platform 4 arranged on the device body 1 and located below the print head 3, a reeling device 5 arranged on one side of the device body 1 and a reeling device 6 arranged on the other side of the device body 1; the ink supply device 2 is connected to the print head 3 to supply ink to the print head 3; the print support platform 4 is provided with a limiting groove 41.

[0043] Exemplarily, the ink supply device 2 is fixedly installed on the top of the equipment body 1, and the print head 3 is installed on the equipment body 1 through a linear module. The linear module is used to drive the print head 3 to move to print the PVC edge banding. The PVC edge banding to be printed is wound on the unwinding device 5, and the PVC edge banding to be printed is transported to the printing carrier 4 through the unwinding device 5. The printed PVC edge banding is reeled up by the reeling device 6.

[0044] When the digital printing device of this embodiment is actually used, ink is transported to the printing nozzle 3 through the ink supply device 2, and the unwinding device 5 transports the PVC edge banding strip to be printed to the limiting groove 41 of the printing support table 4. The limiting groove 41 limits the PVC edge banding strip to be printed so that the printing nozzle 3 can print the PVC edge banding strip. Then the printing nozzle 3 moves to the top of the PVC edge banding strip and prints the PVC edge banding strip. The printed PVC edge banding strip is rolled up on the winding device 6. As the unwinding device 5 continues to unwind and the winding device 6 continues to wind, the PVC edge banding strip is continuously printed by the printing nozzle 3.

[0045] In this embodiment, a reeling device 5 and a reeling device 6 are arranged on both sides of the equipment body 1, an ink supply device 2, a printing nozzle 3 and a printing support platform 4 are arranged on the equipment body 1, and a limiting groove 41 is arranged on the printing support platform 4, so that the PVC edge banding strip can be printed to meet the use requirements of "board edge integration" and improve the edge banding use experience.

[0046] like Figure 5 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the ink supply device 2 includes an ink storage box 21 and an ink cartridge 22 arranged in the ink storage box 21, and a liquid level alarm 23 is arranged on the ink cartridge 22. In this embodiment, the liquid level alarm 23 is arranged on the ink cartridge 22, so that the ink in the ink cartridge 22 is detected by the liquid level alarm 23. When the ink level in the ink cartridge 22 is lower than a preset value, the liquid level alarm 23 generates an alarm signal to prompt the user to replenish the ink in the ink cartridge 22 in time, so as to ensure the reliable printing of the PVC edge banding, and the structure is reliable to use.

[0047] like Figure 5 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, a stirring pump 24 is provided on the top of the ink cartridge 22. In this embodiment, the stirring pump 24 is provided to stir the ink in the ink cartridge 22, so that the ink is more uniform, which is conducive to maintaining the working viscosity of the ink and ensuring the smoothness of the ink discharge.

[0048] like Figure 5 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, a heating module 25 is provided on the side wall of the ink cartridge 22. By providing the heating module 25, the ink in the ink cartridge 22 can be heated by the heating module 25, so as to adapt to the printing operation in a low temperature environment. If the heating module 25 is set to start working automatically when the temperature is lower than 15°C, the ink in the ink cartridge 22 can be heated to ensure the fluidity of the ink, so that the ink can be maintained between 30-40 degrees Celsius to ensure the smoothness of the ink discharge.

[0049] like Figures 6 to 9 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, adsorption holes 42 are provided at intervals throughout the length direction of the limiting groove 41, and the adsorption holes 42 are connected to adsorption nozzles (not shown in the figure). In this embodiment, by providing adsorption holes 42 and adsorption nozzles, when the PVC edge banding enters the limiting groove 41, the adsorption holes 42 and adsorption nozzles cooperate to perform negative pressure adsorption on the PVC edge banding in the limiting groove 41, so that the back of the PVC edge banding is closely attached to the bottom surface of the limiting groove 41, thereby ensuring that the PVC edge banding will not fluctuate up and down due to its own stress, ensuring the flatness of the PVC edge banding in the limiting groove 41, and facilitating the printing effect of the PVC edge banding.

[0050] Exemplarily, the adsorption nozzle can be connected to an air path formed by an exhaust fan, or can be connected to a vacuum generator to perform negative pressure adsorption on the PVC edge banding.

[0051] like Figures 6 to 9 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the bottom of the limit groove 41 is provided with an adsorption groove 43, and the adsorption hole 42 is provided on the bottom of the adsorption groove 43. In this embodiment, by providing the adsorption groove 43, when the PVC edge banding enters the limit groove 41, the PVC edge banding and the adsorption groove 43 form an adsorption cavity, so that the PVC edge banding is more reliably adsorbed under negative pressure, and the warping phenomenon of the PVC edge banding due to its own stress is more effectively overcome. Preferably, the printing support platform 4 can be made of aluminum.

[0052] like Figures 6 to 9 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the printing platform 4 is provided with a heating hole 44 extending along the length direction of the limiting groove 41, and a heating rod (not shown in the figure) is provided in the heating hole 44. In this embodiment, by providing a heating rod on the printing platform 4, the printing platform 4 can be heated by the heating rod, such as heating to fifty degrees Celsius, thereby helping to make the PVC edge banding passing through the limiting groove 41 soft, the gap is opened, and the PVC edge banding is easier to be better integrated with the ink, further improving the printing effect.

[0053] For example, Figure 6 and Figure 7 As shown, the printing platform 4 can adopt an integrated molding structure; Figure 8 and Fig. 9 As shown, the printing platform 4 may also include a first plate 45 and a second plate 46 stacked up and down, the first plate 45 is provided with a limiting groove 41 and a heating hole 44, and the second plate 46 is provided with an adsorption hole 42 and an adsorption groove 43.

[0054] like Figure 1 , Figure 3 , Figure 4 and Fig.13 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the device body 1 is provided with a drying device 7 between the printing carrier 4 and the winding device 6. In this embodiment, the drying device 7 is provided so that the ink can be reliably combined with the PVC edge banding. For example, the drying device 7 can make the PVC edge banding reach 70°C after printing, thereby promoting the further fusion of the ink and the PVC edge banding, which can effectively improve the adhesion and flexibility of the ink when the plate is laminated after post-processing.

[0055] For example, Fig.13 As shown, the drying device 7 is an infrared heating device, which includes a drying seat 71 fixedly connected to the device body 1, and an infrared quartz heater 72 and an exhaust fan 73 arranged on the drying seat 71. The number of infrared quartz heaters 72 can be multiple, and multiple infrared quartz heaters 72 are arranged side by side at intervals. The number of exhaust fans 73 can be multiple, and multiple exhaust fans 73 are arranged side by side at intervals, which can be freely set according to actual design needs.

[0056] like Figure 1 , Figure 3 , Figure 4 , Figures 14 to 16 As shown, a digital printing device for PVC edge banding strips described in this embodiment, in some embodiments, a positioning device 8 for clamping and positioning the PVC edge banding strips is provided above the winding device 6 on the device body 1; in this embodiment, the PVC edge banding strips are guided and limited by the positioning device 8, so that the PVC edge banding strips are not easily offset, thereby ensuring reliable printing of the PVC edge banding strips.

[0057] For example, Figure 3 , Fig.14 and Fig.15As shown, the positioning device 8 includes a first guide roller 81 rotatably connected to the equipment body 1, two first limiting rollers 82 rotatably connected to the equipment body 1 and distributed on both sides of the first guide roller 81, and one end of the first guide roller 81 is connected to a first driving member 83 for driving the first guide roller 81 to rotate, and the first driving member 83 is installed on the equipment body 1. Preferably, the first driving member 83 can adopt a servo motor, and the servo motor drives the first guide roller 81 to rotate, so as to apply traction to the PVC edge banding strip, so as to reel and unwind the PVC edge banding strip, and the PVC edge banding strip is limited by the first limiting roller 82, so that the limiting groove 41 can adapt to the printing of the PVC edge banding strip within a certain width range, and at the same time, the first limiting roller 82 cooperates with the first guide roller 81 to tension the PVC edge banding strip to ensure the tension of the PVC edge banding strip, which is conducive to the continuous printing operation of the PVC edge banding strip.

[0058] like Figure 1 , Figure 3 , Figure 4 , Fig.14 and Fig.15 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the positioning device 8 also includes a first pressing mechanism 84 provided on the device body 1 and located above the first guide roller 81. By providing the first pressing mechanism 84, the PVC edge banding is clamped and positioned between the first guide roller 81 and the first pressing mechanism 84. In this embodiment, the first pressing mechanism 84 cooperates with the first guide roller 81, so that the PVC edge banding is clamped between the first pressing mechanism 84 and the first guide roller 81, thereby further preventing the PVC edge banding from deviating during movement, and the structural reliability is higher.

[0059] For example, Figures 14 to 16 As shown, the first pressing mechanism 84 includes a pressing driving member 101 arranged on the equipment body 1, a pressing shaft 102 rotatably connected to the equipment body 1, and a pressing unit sleeved on the pressing shaft 102; one end of the pressing shaft 102 is connected to a swing rod 103, and the swing rod 103 is connected to the output end of the pressing driving member 101;

[0060] The material pressing unit includes a material pressing seat 105 fixedly connected to the equipment body 1, a pressing plate 106 hinged on the material pressing seat 105, and a pressing roller 107 axially connected to one end of the pressing plate 106. A tension spring (not shown in the figure) is connected between the other end of the pressing plate 106 and the material pressing seat 105, and the tension spring makes the other end of the pressing plate 106 tilt upward; the outer wall of the material pressing shaft 102 is provided with a pressing platform 104 in contact with the surface of the pressing plate 106 at a position corresponding to the pressing plate 106. Preferably, the material pressing driving member 101 of the first material pressing mechanism 84 is an electric push rod.

[0061] Specifically, when the PVC edge banding strip needs to be loaded, the pressing drive 101 drives the pressing shaft 102 to rotate through the rocker rod 103, and the pressing shaft 102 drives the pressing platform 104 to rotate. The pressing platform 104 squeezes the pressing plate 106, so that the other end of the pressing plate 106 overcomes the tension of the tension spring and swings downward, so that the pressing roller 107 is in an upward tilted state, and the pressing roller 107 is out of contact with the first guide roller 81 to facilitate the loading and unloading operations of the PVC edge banding strip.

[0062] like Figures 1 to 4 , Figures 10 to 12 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the unwinding device 5 and the rewinding device 6 both include a rewinding and unwinding support 201, a mounting position is provided on the rewinding and unwinding support 201, a film winder 202 is movably provided on the mounting position, two second guide rollers 203 are installed at intervals on the rewinding and unwinding support 201, and the periphery of the film winder 202 is in contact with the roller surface of the second guide roller 203;

[0063] The unwinding device 5 and the rewinding device 6 both further include a power assembly installed on the rewinding and unwinding support 201, and the power assembly is connected to one of the second guide rollers 203 to drive the second guide roller 203 to rotate. In this embodiment, the second guide roller 203 provides support for the film reel 202, so that during the rewinding and unwinding process of the PVC edge banding, the second guide roller 203 is used to provide guidance for the film reel 202, so that the film reel 202 can be reliably rewound and unwound, making the rewinding and unwinding of the PVC edge banding smoother.

[0064] For example, Fig.11 As shown, the power assembly includes a power motor 2041, a first gear 2042 connected to the output end of the power motor 2041, and a second gear 2043 connected to one end of the second guide roller 203, and the second gear 2043 is meshed with the first gear 2042. The power motor 2041 drives the first gear 2042 to rotate, and the first gear 2042 drives the second gear 2043 to rotate, thereby driving the second guide roller 203 to rotate, so as to smoothly retract and unwind the PVC edge banding.

[0065] like Fig.12As shown, the film winder 202 includes a first disk 2021 and a second disk 2022 that are arranged opposite to each other, the first disk 2021 and the second disk 2022 are arranged coaxially, a first reel 2023 is arranged at the center of the first disk 2021, a magnet 2025 is arranged on the end surface of the first reel 2023 facing the second disk 2022, a second reel 2024 is arranged at the center of the second disk 2022, an iron sheet 2026 corresponding to the position of the magnet 2025 is arranged on the end surface of the second reel 2024 facing the first disk 2021, and the first disk 2021 and the second disk 2022 are connected together by magnetic adsorption of the magnet 2025 and the iron sheet 2026; the PVC edge banding strip is wound on the first reel 2023 and the second reel 2024. In this embodiment, the first disk 2021 and the second disk 2022 are assembled into the film winder 202 by magnetic adsorption, so as to facilitate the disassembly and assembly of the film winder 202.

[0066] It should be noted that the magnetic attraction between the magnet 2025 and the iron sheet 2026 can ensure that the first disk 2021 and the second disk 2022 do not separate when the film winder 202 falls from a height of 1.5 m in a fully wound state.

[0067] like Figure 1 , Figure 3 , Figure 4 and Fig.17 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the device body 1 is provided with a second pressing mechanism 9 above the printing carrier 4; the second pressing mechanism 9 has the same structure as the first pressing mechanism 84. Preferably, as Fig.17 As shown, the pressing drive component 101 of the second pressing mechanism 9 includes a pressing motor and a rotating disk; the rocker arm 103 of the second pressing mechanism 9 is connected to the rotating disk; in this way, the rotating disk is driven to rotate by the pressing motor, and the rotating disk drives the rocker arm 103 to swing, thereby driving the pressing shaft 102 to rotate; the pressing drive component 101 of the second pressing mechanism 9 adopts a structural method in which the pressing motor and the rotating disk are matched to reduce the installation space occupied.

[0068] Specifically, when the PVC edge banding strip needs to be loaded, the pressing drive member 101 of the second pressing mechanism 9 drives the pressing shaft 102 of the second pressing mechanism 9 to rotate through the swing rod 103 of the second pressing mechanism 9, and the pressing shaft 102 of the second pressing mechanism 9 drives the pressing table 104 of the second pressing mechanism 9 to rotate, and the pressing table 104 of the second pressing mechanism 9 squeezes the pressing plate 106 of the second pressing mechanism 9, so that the other end of the pressing plate 106 of the second pressing mechanism 9 overcomes the tension of the tension spring of the second pressing mechanism 9 and swings downward, so that the pressing roller 107 of the second pressing mechanism 9 is in an upward tilted state, and the pressing roller 107 of the second pressing mechanism 9 is out of contact with the printing carrier 4, so as to facilitate the loading and unloading operations of the PVC edge banding strip;

[0069] During printing, the pressing drive 101 of the second pressing mechanism 9 drives the pressing shaft 102 of the second pressing mechanism 9 to rotate in the opposite direction through the rocker rod 103 of the second pressing mechanism 9, so that the pressing roller 107 of the second pressing mechanism 9 contacts the printing support platform 4, so that the PVC edge strip can be reliably limited in the limiting groove 41.

[0070] like Figure 2 and Figure 3 As shown, in the digital printing device for PVC edge banding described in this embodiment, in some embodiments, the device body 1 is provided with a second limiting roller 11 on the side of the printing platform 4 close to the unwinding device 5. In this embodiment, the second limiting roller 11 is provided to tension and limit the unrolled PVC edge banding, and at the same time, it is helpful to reduce the stress generated by the PVC edge banding on the printing platform 4. Preferably, the number of the second limiting rollers 11 is two, and the two second limiting rollers 11 are arranged side by side at an interval.

[0071] For example, Figure 5 As shown, the number of ink cartridges 22 can be set to eight, and the eight ink cartridges 22 are filled with inks of different colors to meet the color requirements of different plates; each ink cartridge 22 is provided with a liquid level alarm 23, a stirring pump 24 and a heating module 25. For example, a filter is provided on the print head 3 to filter the ink to prevent the ink from clogging the print head 3. The filter can be a 5μ butterfly filter. For example, Figure 6 and Figure 7 As shown, the printing platform 4 is provided with twenty limit slots 41 arranged at intervals along the length direction of the printing platform 4. Figure 1 , Figure 2 , Fig.10 As shown, twenty mounting positions are arranged on the reel support 201, and a film winder 202 is arranged at each mounting position; a pressing unit is arranged corresponding to each limiting groove 41 of the pressing shaft 102 of the first pressing mechanism 84 and the pressing shaft 102 of the second pressing mechanism 9, so that twenty PVC edge banding strips can be printed at the same time, which greatly improves the production efficiency; since the number of limiting grooves 41 is twenty, limiting grooves 41 of different widths can be arranged on the same printing carrier 4 to meet the printing of PVC edge banding strips in different width ranges, such as for the printing of PVC edge banding strips in the width range of 20-65mm, it can be set according to actual production needs, so that the structure is more flexible.

[0072] For example, Fig.16As shown, one side of the pressing seat 105 is also rotatably connected to a handle 108, and the handle 108 is connected to a pressing arm 109 that can contact the other end of the pressing plate 106; in this way, by rotating the handle 108, the handle 108 drives the pressing arm 109 to swing, and the pressing arm 109 squeezes the pressing plate 106, so that the other end of the pressing plate 106 overcomes the tension of the tension spring and swings downward, thereby making the pressing roller 107 in an upward tilted state; thereby, each pressing unit can be independently controlled by the handle 108, so that when it is necessary to adjust the printing operation of one of the PVC edge banding strips, the pressing plate 106 can be swung by the handle 108, thereby controlling the swing of the pressing roller 107. With such an arrangement, the structure is more flexible.

[0073] The above is only a preferred embodiment of the present utility model, so any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the protection scope of the present utility model patent application.

Claims

1. A digital printing device for PVC edge banding, characterized in that: The invention comprises an equipment body, an ink supply device arranged on the equipment body, a print head slidably arranged on the equipment body, a print support platform arranged on the equipment body and below the print head, a reeling device arranged on one side of the equipment body and a reeling device arranged on the other side of the equipment body; the ink supply device is connected to the print head to supply ink to the print head; and a limiting groove is arranged on the print support platform.

2. A digital printing device for PVC edge banding according to claim 1, characterized in that: The ink supply device comprises an ink cartridge, on which a liquid level alarm is arranged; the ink cartridge is also provided with a stirring pump; and the ink cartridge is also provided with a heating module.

3. The digital printing device for PVC edge banding according to claim 1, characterized in that: Adsorption holes are arranged at intervals in the limiting groove along the length direction thereof, and the adsorption holes are connected with adsorption nozzles.

4. The digital printing device for PVC edge banding according to claim 3, characterized in that: The bottom of the limiting groove is provided with an adsorption groove, and the adsorption holes are arranged on the bottom of the adsorption groove.

5. The digital printing device for PVC edge banding according to claim 1, characterized in that: The printing support platform is provided with a heating hole extending along the length direction of the limiting groove, and a heating rod is arranged in the heating hole.

6. The digital printing device for PVC edge banding according to claim 1, characterized in that: The equipment body is provided with a drying device between the printing support platform and the winding device.

7. The digital printing device for PVC edge banding according to claim 1, characterized in that: The equipment body is provided with a positioning device above the winding device for clamping and positioning the PVC edge banding strip; The positioning device includes a first guide roller rotatably connected to the equipment body, two first limiting rollers rotatably connected to the equipment body and distributed on both sides of the first guide roller, one end of the first guide roller is connected to a first driving member for driving the first guide roller to rotate, and the first driving member is installed on the equipment body.

8. The digital printing device for PVC edge banding according to claim 7, characterized in that: The positioning device also includes a first material pressing mechanism disposed on the equipment body and located above the first guide roller; the first material pressing mechanism includes a material pressing driving member disposed on the equipment body, a material pressing shaft rotatably connected to the equipment body, and a material pressing unit sleeved on the material pressing shaft; one end of the material pressing shaft is connected to a swing rod, and the swing rod is connected to the output end of the material pressing driving member; The pressing unit includes a pressing seat fixedly connected to the equipment body, a pressing plate hinged on the pressing seat and a pressing roller axially connected to one end of the pressing plate. A tension spring is connected between the other end of the pressing plate and the pressing seat, and the tension spring causes the other end of the pressing plate to be in an upward tilted state; a pressing platform in contact with the surface of the pressing plate is arranged on the outer wall of the pressing shaft corresponding to the position of the pressing plate.

9. The digital printing device for PVC edge banding according to claim 1, characterized in that: The unwinding device and the rewinding device both include a rewinding and unwinding support, a mounting position is provided on the rewinding and unwinding support, a film winder is movably provided on the mounting position, two second guide rollers are installed on the rewinding and unwinding support at intervals, and the periphery of the film winder contacts the roller surface of the second guide roller; The unwinding device and the rewinding device both further include a power assembly installed on the rewinding and unwinding support, and the power assembly is connected to one of the second guide rollers to drive the second guide roller to rotate.

10. The digital printing device for PVC edge banding according to claim 1, characterized in that: The equipment body is provided with a second limiting roller on one side of the printing platform close to the unwinding device.

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