Inkjet printing device with flexible medium support function

Abstract

The present invention discloses an inkjet printing device with a flexible medium supporting function, belonging to the technical field of printing devices. The structure thereof comprises a disc base, a supporting disc and two annular tables, wherein the two annular tables are stacked and installed together, the supporting disc is installed at the center of the annular tables, the disc base is located above the supporting disc, a protective shell is installed at the bottom of the disc base, and an inkjet printing module is arranged in the protective shell; the present application is not limited by the size of the flexible medium, and during the period of supporting the flexible medium, the device itself will not block the edge of the flexible medium, effectively avoiding local warping and wrinkling of the flexible medium, and ensuring the flatness of the printing area of ​​the flexible medium; on this basis, a multi-area separated printing method is adopted to reduce the long-distance movement requirement of the inkjet printing module, reduce the overall size of the device, increase the convenience of equipment manufacturing, handling and maintenance, and improve the comprehensive use efficiency of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, in particular to an inkjet printing equipment with a flexible medium supporting function. Background Art

[0002] The deformability of flexible packaging enables it to tightly wrap irregularly shaped items, thus saving space during transportation and storage. In addition, larger packaging materials can also be used as indicators to effectively convey marketing information and brand image. Compared with packaging that is spliced ​​and sewn together from multiple pieces, complete large-size flexible packaging can be more visually unified and continuous, effectively avoiding uneven seams, inconsistent colors, or bending caused by uneven tension, which has a better display effect on information and ensures the quality and appearance of the entire packaging material.

[0003] In the prior art, the Ricoh G6 industrial flatbed inkjet printing device is used to perform inkjet printing on packaging materials with large length and width. The device includes a printing platform, a door-shaped frame, a print head, an ink supply system and a control system. Specifically, the printing platform is composed of a large-sized flat structure to provide support for the packaging materials to be printed; the door-shaped frame can be movably mounted on the outside of the printing platform, and the print head can be movably installed on the door-shaped frame and driven by a toothed synchronous belt and a pulley assembly. As the door-shaped frame moves outside the printing platform and the print head moves on the door-shaped frame, the printing position of the print head is switched. The print head has a built-in ink supply system and a control system to realize the pattern forming of ink on the surface of the object to be printed;

[0004] When using the above-mentioned device to perform inkjet printing on packaging materials with larger length and width dimensions, due to the structural size limitations of the printing platform and the door-type frame, the door-type frame will hinder the edges of the packaging materials with larger widths to be printed, causing the edges of the packaging materials to be printed to warp, thereby limiting the device's printing ability for large-size packaging materials. If the width dimensions of the printing platform and the door-type frame are increased, the overall size and weight of the device will increase significantly, causing inconvenience in the manufacture, transportation, and maintenance of the equipment, and reducing the comprehensive use efficiency of the equipment. Therefore, the present application provides an inkjet printing device with a flexible medium support function. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide an inkjet printing device with a flexible medium supporting function, which is not limited by the size of the flexible medium. During the supporting period of the flexible medium, the device itself will not block the edge of the flexible medium, effectively avoiding local warping and wrinkling of the flexible medium, and ensuring the flatness of the printing area of ​​the flexible medium. On this basis, a multi-area separated printing method is adopted to reduce the long-distance movement requirement of the inkjet printing module, reduce the overall size of the equipment, increase the convenience of equipment manufacturing, transportation and maintenance, and improve the comprehensive use efficiency of the equipment.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] Provided is an inkjet printing device with a flexible medium supporting function, comprising a disc seat, a support disc and two annular tables, wherein the two annular tables are stacked and installed together, a gap is provided between the two annular tables for the flexible material to be printed to pass through, the support disc is installed at the center of the annular tables, the support disc and the annular table located at the lower side jointly support the flexible material to be printed, the disc seat is located above the support disc, a protective shell is installed at the bottom of the disc seat, and an inkjet printing module is arranged in the protective shell.

[0008] Furthermore, a reversing seat is rotatably installed on the annular platform located on the upper side, and multiple reversing seats are provided. The multiple reversing seats are arranged at equal angles on the annular platform located on the upper side, and a spherical transfer wheel is rotatably installed in each reversing seat. The bottoms of the multiple spherical transfer wheels are simultaneously tightly fitted against the upper side surface of the flexible material to be printed; multiple electromagnets are respectively provided on the two annular platforms, and the positions of the electromagnets on the two annular platforms correspond one to one, and are connected by magnetic adsorption coupling.

[0009] Furthermore, the annular platform located on the upper side is connected to the disc base through multiple connecting arms, and the multiple connecting arms are distributed on the circumference of the disc base at equal angular intervals. The protective shell is rotatably installed at the bottom of the disc base, and the rotation center of the disc base corresponds to the center of the supporting disc, so that the protective shell is stably maintained in a position above the middle of the supporting disc.

[0010] Furthermore, a plurality of diagonal support arms are provided at the bottom of the support plate, and a plurality of legs that can be detachably fixedly connected to the diagonal support arms are provided at the bottom of the annular platform located at the lower side. The annular platform is composed of a plurality of crescent-shaped plates connected end to end, and adjacent crescent-shaped plates are fixedly connected by connecting plates.

[0011] Furthermore, two groups of annular tables are provided, and the diameters of the two groups of annular tables are different but they are coaxially placed; a plurality of legs are fixedly installed on the bottom of the two annular tables located on the lower side, and the multiple legs on the bottom of the two annular tables correspond to each other one by one and are connected by positioning arms to ensure that the upper surfaces of the two annular tables located on the lower side remain flush.

[0012] Furthermore, the inkjet printing module is slidably installed on the traveling frame, the traveling frame is installed in the protective shell, an internal threaded sleeve is fixedly installed on the inkjet printing module, a screw is rotatably installed on the traveling frame, a rotation driver IV is installed on the traveling frame, the output shaft of the rotation driver IV is connected to the rotating shaft of the screw through a coupling, and the screw and the internal threaded sleeve are connected through a threaded transmission.

[0013] Furthermore, the traveling frame is rotatably installed in the protective shell, a shaft rod is fixedly installed in the protective shell, a flip-and-shift storage arm is rotatably installed on the shaft rod, and the flip-and-shift storage arm is fixedly installed on the top of the traveling frame.

[0014] Furthermore, limiting sleeves are fixedly installed on both sides of the interior of the protective shell, and cross arms are slidably installed in the two limiting sleeves. The two cross arms are fixedly installed on both sides of the sealing cover, and the sealing cover can cover the bottom of the protective shell.

[0015] Furthermore, a linear electric cylinder II is installed on the connecting plate corresponding to the annular table on the upper side, and a positioning head is fixedly installed on the movable end of the linear electric cylinder II. The positioning head can penetrate downward through the connecting plate and the annular table on the upper side, and be plugged into the embedded groove on the top of the lower annular table.

[0016] Furthermore, a foot pad is detachably fixedly installed at the bottom of the leg, a gasket is fixedly installed between the upper side of the foot pad and the bottom of the leg, a stud is integrally formed on the foot pad, and the stud is connected to the threaded hole at the bottom of the leg through a threaded screw.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The inkjet printing device with flexible medium support function of the example of the present invention uses a support plate and a ring-shaped table located at the lower side to jointly support the flexible material to be printed. Without adding equipment components, the middle part is suspended to expand the effective support range of the equipment for the flexible material to be printed, and the four sides of the flexible material to be printed are straightened by multiple spherical transfer wheels to keep it in a straight state, so as to achieve efficient and stable support for the flexible medium while optimizing the volume of the equipment.

[0019] 2. The inkjet printing device with flexible medium support function of the example of the present invention starts the inkjet printing module, performs printing operation on the strip area corresponding to the inkjet printing module on the surface of the flexible material to be printed, and after completing the first printing step, drives the protective shell and the inkjet printing module to rotate together at the bottom of the disk base, switches the printing range of the inkjet printing module, and completes the subsequent printing steps. As the protective shell rotates a full circle, a complete printing cycle is formed, and a pattern with a certain length and width is formed on the surface of the flexible material to be printed; through the multi-area separated printing method, the movement demand of the inkjet printing module is reduced, thereby eliminating the need for a larger door-type frame in the prior art, thereby reducing the overall size of the support disk, thereby increasing the convenience of equipment manufacturing, transportation and maintenance, and improving the comprehensive use efficiency of the equipment.

[0020] 3. The inkjet printing device with flexible medium supporting function of the example of the present invention coordinates the rotation of multiple reversing seats and spherical transfer wheels, controls the movement of the flexible material to be printed relative to the support plate, switches the printing area of ​​the flexible material to be printed, and uses industrial-grade visual recognition equipment to verify whether the flexible material to be printed reaches the specified position; since the flexible material to be printed can slide freely between the two annular tables, and there are no other components on the outside of the annular table, the edge of the flexible medium will not be blocked, thereby effectively avoiding local warping and wrinkling of the flexible medium during the support of the flexible medium, thereby ensuring the flatness of the printing area of ​​the flexible medium.

[0021] 4. In the inkjet printing device with flexible medium support function of the example of the present invention, the annular platform is composed of a plurality of crescent-shaped plates connected end to end, and adjacent crescent-shaped plates are fixedly connected by connecting plates; by disassembling the plurality of crescent-shaped plates and the connecting plates, the overall size of the device is reduced, and compared with the large-size printing platform used in the existing Ricoh G6 industrial flatbed inkjet printing device, the device is convenient to manufacture, transport and maintain.

[0022] 5. The inkjet printing device with flexible medium support function in the example of the present invention controls the traveling frame to retract into or extend from the protective shell by rotating the flipping storage arm, so that the device maintains a large distance from the upper side of the support plate when idle. Compared with the use of the print head close to the support platform in the prior art, the problem of flexible materials to be printed causing scratches on the inkjet printing module can be effectively avoided during the process of taking and placing flexible materials to be printed.

[0023] 6. The inkjet printing device with flexible medium supporting function in the example of the present invention controls the positioning head to move downward, and the positioning head passes through the connecting plate and the annular table on the upper side in sequence, and finally plugs into the embedding groove to lock the horizontal position between the two annular tables in the same group, effectively avoiding the slight horizontal movement of the two annular tables in the same group during the operation of the device, increasing the operating stability of the device, and ensuring the printing effect of the flexible material to be printed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 A schematic structural diagram of an inkjet printing device using two sets of annular stages provided in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of an inkjet printing device using a single set of annular stages provided by an embodiment of the present invention;

[0027] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0028] Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle;

[0029] Figure 5 For the present invention Figure 2 Enlarged view of point C in the middle;

[0030] Figure 6 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 1 ;

[0031] Figure 7 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 2 ;

[0032] Figure 8 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 3 ;

[0033] Fig. 9 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 4 ;

[0034] Fig.10 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 5 ;

[0035] Fig.11A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 6 ;

[0036] Fig.12 A schematic diagram of the structure of the inkjet printing device provided in an embodiment of the present invention Figure 7 ;

[0037] Fig.13 This is a schematic diagram of the structure of a foot pad provided by an embodiment of the present invention.

[0038] In the figure: 1 flexible material to be printed, 11 annular table, 12 electromagnet, 13 connecting plate, 14 support leg, 141 foot pad, 142 gasket, 15 support plate, 151 diagonal support arm, 16 reversing seat, 161 rotating driver I, 17 spherical transfer wheel, 171 rotating driver II, 18 C-shaped arm, 21 plate seat, 211 connecting arm I, 212 connecting arm II, 22 protective shell, 23 rotating driver III, 24 shaft, 25 limiting sleeve, 31 traveling frame, 32 inkjet printing module, 321 internal thread sleeve, 33 limiting edge, 34 arc surface, 35 screw rod, 36 rotating driver IV, 41 flip storage arm, 411 sliding pin, 42 linear electric cylinder I, 43 cross arm, 44 slide arm, 45 sealing cover, 46 anti-collision shrinkage edge, 51 linear electric cylinder II, 52 positioning head, 53 embedded groove. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0041] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0045] Embodiment 1:

[0046] like Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, this embodiment provides an inkjet printing device with a flexible medium supporting function, including a disc base 21, a support disc 15 and two annular tables 11; the two annular tables 11 are stacked and installed together, and a gap is provided between the two annular tables 11 for the flexible material 1 to be printed to pass through, and the support disc 15 is installed at the center of the annular table 11; the disc base 21 is located above the support disc 15, and a protective shell 22 is installed at the bottom of the disc base 21, and an inkjet printing module 32 is arranged in the protective shell 22.

[0047] In this embodiment, a plurality of inkjet printing modules 32 are installed in the protective shell 22 , and the plurality of inkjet printing modules 32 are used simultaneously to perform printing operations on the flexible material 1 to be printed corresponding to the bottom of the protective shell 22 .

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a reversing seat 16 is rotatably mounted on the annular table 11 located on the upper side, and a plurality of reversing seats 16 are provided, and the plurality of reversing seats 16 are arranged at equal angles on the annular table 11 located on the upper side, and a spherical transfer wheel 17 is rotatably mounted in each reversing seat 16, and the bottom of the spherical transfer wheel 17 protrudes downward from the bottom plane of the reversing seat 16 and the bottom plane of the annular table 11 located on the upper side, and an anti-slip coating is provided on the outer side of the spherical transfer wheel 17, and a PU coating or a polyurethane coating can be used for the anti-slip coating, and the bottoms of the plurality of spherical transfer wheels 17 are simultaneously tightly fitted against the upper side surface of the flexible material 1 to be printed.

[0049] like Figure 3 and Fig.12 As shown, a plurality of electromagnets 12 are respectively arranged on the two annular platforms 11. The electromagnets 12 use a large suction force to pull the electromagnets. The positions of the electromagnets 12 on the two annular platforms 11 correspond one to one and are connected by magnetic adsorption coupling, so that the two annular platforms 11 can stably maintain a spacing of 3-5 mm.

[0050] like Figure 2 As shown, the annular table 11 located on the upper side is connected to the disc base 21 through a plurality of connecting arms, and the plurality of connecting arms are distributed at equal angular intervals on the circumference of the disc base 21. The protective shell 22 is rotatably mounted on the bottom of the disc base 21. A rotating driver III23 is mounted on the disc base 21. The output shaft of the rotating driver III23 is connected to the rotating shaft III on the top of the protective shell 22 through a coupling. The rotation center of the disc base 21 corresponds to the center of the support disc 15, so that the protective shell 22 is stably maintained at a position above the middle of the support disc 15.

[0051] The specific structure of the connecting arm between the annular platform 11 and the disc base 21 is as follows:

[0052] The connecting arm is composed of a connecting arm I211 and a connecting arm II212. The connecting arm I211 is L-shaped. One end of the connecting arm I211 with a built-in reinforcement rib is plug-connected to the disk base 21 and locked in position by a fastener. The other end of the connecting arm I211 is detachably fixedly connected to the connecting arm II212. The connecting arm II212 is cylindrical and is detachably fixedly connected to the connecting plate 13 corresponding to the annular platform 11 located on the upper side.

[0053] like Figure 2 and Fig.12 As shown, a plurality of diagonal support arms 151 are provided at the bottom of the support plate 15, and a plurality of support legs 14 that can be detachably fixedly connected to the diagonal support arms 151 are provided at the bottom of the annular platform 11 at the lower side, so as to lock the relative position between the support plate 15 and the annular platform 11 at the lower side.

[0054] The specific details of the support and printing operation of the flexible medium using the inkjet printing device of the present application are as follows:

[0055] 1. Preparation before product printing;

[0056] First, multiple electromagnets 12 are started so that the two annular tables 11 always tend to approach each other. Multiple reversing seats 16 and spherical transfer wheels 17 are rotated to make the flexible material 1 to be printed pass through the gap between the two annular tables 11, and then the flexible material 1 to be printed is flattened on the upper side of the support plate 15.

[0057] Afterwards, multiple spherical transfer wheels 17 are used to abut and fit against the upper surface of the annular platform 11 located at the lower side to perform multi-point clamping and support on the flexible material to be printed 1 to maintain the flexible material to be printed 1 in a straight state. At the same time, a printing working gap is formed between the bottom of the inkjet printing module 32 and the upper side of the flexible material to be printed 1.

[0058] 2. Performing regional printing on the flexible material to be printed 1;

[0059] Start the inkjet printing module 32 and perform printing on the strip area on the surface of the flexible material 1 to be printed corresponding to the inkjet printing module 32. After completing the first printing step, start the rotary driver III 23 to drive the protective shell 22 and the inkjet printing module 32 to rotate together at the bottom of the disc base 21, switch the printing range of the inkjet printing module 32, and complete the subsequent printing steps. As the protective shell 22 rotates a full circle, a complete printing cycle is formed, and a pattern with a certain length and width is formed on the surface of the flexible material 1 to be printed.

[0060] 3. Switch the printing area of ​​the flexible material 1 to be printed;

[0061] The rotation of multiple reversing seats 16 and spherical transfer wheels 17 are coordinated and controlled to control the movement of the flexible material to be printed 1 relative to the support plate 15, the printing area of ​​the flexible material to be printed 1 is switched, and industrial-grade visual recognition equipment is used to verify whether the flexible material to be printed 1 reaches the specified position, and the operation of step 2 is repeated to complete the multi-area separated printing of the flexible material to be printed 1.

[0062] In the above step 1, the support plate 15 and the annular table 11 located at the lower side are used to support the flexible material to be printed 1 together, so that without adding equipment components, the middle part is suspended to expand the effective support range of the equipment for the flexible material to be printed 1, and the four sides of the flexible material to be printed 1 are straightened by a plurality of spherical transfer wheels 17 to keep it in a straight state, so as to achieve efficient and stable support for the flexible medium while optimizing the volume of the equipment.

[0063] In the above step 2, a separate printing area is formed on the upper side of the support plate 15. By adopting a multi-area separated printing method, the movement requirement of the inkjet printing module 32 is reduced, thereby eliminating the need for a larger door-type frame in the prior art, thereby reducing the overall size of the support plate 15, thereby increasing the convenience of equipment manufacturing, transportation and maintenance, and improving the comprehensive use efficiency of the equipment.

[0064] In the above step three, since the flexible material 1 to be printed can slide freely between the two annular platforms 11, and there are no other components on the outside of the annular platform 11, the edge of the flexible medium will not be blocked, thereby effectively avoiding local warping and wrinkling of the flexible medium during the supporting period, and ensuring the flatness of the printing area of ​​the flexible medium.

[0065] The present application provides a rotation control method for the reversing seat 16 and the spherical transfer wheel 17:

[0066] A rotation driver I161 is installed on the side of the annular table 11 located on the upper side through a C-shaped arm 18, and the output shaft of the rotation driver I161 is connected to the rotating shaft I on the top of the reversing seat 16 through a coupling; a rotation driver II171 is installed on the side of the reversing seat 16, and the output shaft of the rotation driver II171 is connected to the rotating shaft II on the side of the spherical transfer wheel 17 through a coupling.

[0067] In the present application, the annular table 11 is composed of a plurality of crescent-shaped plates connected end to end, and adjacent crescent-shaped plates are fixedly connected by connecting plates 13; by disassembling the plurality of crescent-shaped plates and the connecting plates 13, the overall size of the equipment is reduced, and compared with the flat-plate structure printing platform used in the existing Ricoh G6 industrial flatbed inkjet printing equipment, the equipment is convenient to manufacture, transport and maintain.

[0068] In order to avoid the inkjet printing module 32 from being scratched when taking and placing the flexible material 1 to be printed, Figure 7 , Figure 8 and Fig. 9 As shown, the traveling frame 31 is rotatably installed in the protective shell 22, the shaft rod 24 is fixedly installed in the protective shell 22, the flip storage arm 41 is rotatably installed on the shaft rod 24, and the flip storage arm 41 is fixedly installed on the top of the traveling frame 31; by rotating the flip storage arm 41, the traveling frame 31 is controlled to be retracted into the protective shell 22 or extended from the protective shell 22, so that when the device is idle, a large distance is maintained between the device and the upper side of the support plate 15. Compared with the use of the print head close to the support platform in the prior art, in the process of taking and placing the flexible material 1 to be printed, the problem of the flexible material 1 to be printed causing scratches on the inkjet printing module 32 can be effectively avoided.

[0069] Furthermore, limit sleeves 25 are fixedly installed on both sides of the interior of the protective shell 22, and cross arms 43 are slidably installed in the two limit sleeves 25. The two cross arms 43 are fixedly installed on both sides of the sealing cover 45. The sealing cover 45 can be used to cover the bottom of the protective shell 22 to further extend the service life of the equipment. In this embodiment, the protective shell 22 uses soft materials to avoid collision damage to the traveling frame 31.

[0070] In order to facilitate the horizontal placement of the annular table 11 and the support plate 15, as shown in FIG. Fig.12 and Fig.13 As shown, a foot pad 141 is detachably fixedly installed at the bottom of the leg 14, a gasket 142 is fixedly installed between the upper side of the foot pad 141 and the bottom of the leg 14, a stud is integrally formed on the foot pad 141, and the stud is connected to the threaded hole at the bottom of the leg 14 through a threaded engagement, and the foot pad 141 is rotated to adjust the distance between the top of the corresponding leg 14 and the horizontal plane, so that the annular table 11 and the support plate 15 can be placed in a horizontal state.

[0071] In order to avoid the slight horizontal movement of the two annular tables 11 in the same group during the operation of the equipment, Figure 5 and Fig.11 As shown, a linear electric cylinder II 51 is installed on the connecting plate 13 corresponding to the annular table 11 located on the upper side, the lower end of the connecting arm II 212 is sleeved on the outer side of the linear electric cylinder II 51 and is detachably fixedly connected to the corresponding connecting plate 13, and a positioning head 52 is fixedly installed on the movable end of the linear electric cylinder II 51. The positioning head 52 can penetrate downward through the connecting plate 13 and the annular table 11 located on the upper side, and is plugged and connected with the embedding groove 53 on the top of the annular table 11 located on the lower side; the bottom edge of the positioning head 52 is provided with an arc contact surface to avoid scratching and damage to the surface of the flexible material 1 to be printed.

[0072] The linear electric cylinder II 51 is started to control the positioning head 52 to move downward. The positioning head 52 passes through the connecting plate 13 and the annular table 11 on the upper side in sequence, and finally plugs into the embedding groove 53 to lock the horizontal position between the two annular tables 11 of the same group, effectively avoiding the slight horizontal movement of the two annular tables 11 of the same group during the operation of the equipment, increasing the stability of the equipment operation, and ensuring the printing effect of the flexible material 1 to be printed.

[0073] During the above operation, the flexible material 1 to be printed is pressed together by the multiple positioning heads 52 arranged on the peripheral side of the annular table 11, so that the flexible material 1 to be printed can always be in a flat and straight state during the printing stage, and the anti-loosening effect is good.

[0074] In the present application, a connecting arm is used to lock the relative position between the disk base 21 and the protective shell 22 and the annular table 11 located on the upper side, a diagonal support arm 151 is used to lock the relative position between the support disk 15 and the annular table 11 located on the lower side, and an electromagnet 12 and a positioning head 52 are used to lock the relative position between two annular tables 11 in the same group; the above-mentioned schemes are used in combination to stabilize the relative positions of the supporting component, the clamping component and the printing component, thereby maintaining smooth printing work.

[0075] Embodiment 2:

[0076] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1 and Figure 2 As shown, the contact mode between the spherical transfer wheels 17 and the flexible material to be printed 1 is point contact. At the position where the multiple spherical transfer wheels 17 do not clamp the flexible material to be printed 1, the flexible material to be printed 1 may be in a relaxed state, which may cause the pattern finally presented on the flexible material to be printed 1 to be deformed.

[0077] In view of this, in the present embodiment, two groups of the annular platforms 11 are provided, and the diameters of the two groups of annular platforms 11 are different but coaxially arranged; a plurality of legs 14 are fixedly installed at the bottom of the two annular platforms 11 located at the lower side, and the plurality of legs 14 at the bottom of the two annular platforms 11 correspond to each other one by one and are connected by a positioning arm, so as to ensure that the upper surfaces of the two annular platforms 11 located at the lower side remain flush.

[0078] The two sets of annular platforms 11 are respectively provided with a plurality of electromagnets 12, a reversing seat 16 and a spherical transfer wheel 17 which are independently controlled from each other; the middle of the inner annular platform 11 forms a circular printing area, and an annular adjustment area is formed between the two sets of annular platforms 11;

[0079] By controlling the rotation of the reversing seat 16 and the spherical transfer wheel 17 corresponding to the annular table 11 located on the outside, the spherical transfer wheels 17 on the two sets of annular tables 11 work together to pull and clamp the portion of the flexible material 1 to be printed in the annular adjustment area, thereby avoiding irregular wrinkles and looseness at the edge of the circular printing area of ​​the flexible material 1 to be printed, thereby ensuring the printing effect of the flexible material 1 to be printed.

[0080] Compared with the method of using only a single set of annular tables 11 to clamp the flexible material to be printed 1 in the first embodiment, the above-mentioned solution of this embodiment can effectively avoid the wrinkles caused by the edge of the flexible material to be printed 1 directly hanging down on the outside of the annular table 11, so as to meet the printing needs of the flexible material to be printed 1 with a larger size;

[0081] In addition, compared with the prior art method of using a large-size flat plate structure to support the flexible material to be printed 1, the above-mentioned scheme of this embodiment can greatly reduce the volume of the supporting components because the space between the two groups of annular tables 11 is hollow, which is convenient for the manufacture, transportation and maintenance of the equipment. When facing a larger-sized flexible material to be printed 1, another group of annular tables 11 can be added to support the flexible material to be printed 1. The equipment has good expandability and does not need to replace core components.

[0082] Embodiment three:

[0083] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Fig. 9 and Fig.10 As shown, in this embodiment, the inkjet printing module 32 is slidably installed with the traveling frame 31, the traveling frame 31 is installed in the protective shell 22, an internal threaded sleeve 321 is fixedly installed on the inkjet printing module 32, a screw rod 35 is rotatably installed on the traveling frame 31, a rotating driver IV36 is installed on the traveling frame 31, the output shaft of the rotating driver IV36 is connected to the rotating shaft of the screw rod 35 through a coupling, and the screw rod 35 and the internal threaded sleeve 321 are connected through a threaded transmission.

[0084] Start the rotary driver IV36, control the screw rod 35 to rotate, drive the inkjet printing module 32 to slide in the traveling frame 31, change the relative position between the inkjet printing module 32 and the flexible material 1 to be printed, and adjust the printing range of the inkjet printing module 32; compared with the first embodiment, the solution of using multiple groups of inkjet printing modules 32 at the same time can greatly reduce the manufacturing cost of the equipment and has good economic benefits.

[0085] Embodiment 4:

[0086] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 7 , Figure 8 and Fig. 9 As shown, in this embodiment, a linear electric cylinder Ⅰ42 is installed on the lower side of the top of the protective shell 22, the fixed end of the linear electric cylinder Ⅰ42 is rotatably connected to the protective shell 22, the movable end of the linear electric cylinder Ⅰ42 is rotatably connected to the flip storage arm 41, the other end of the cross arm 43 connected to the sealing cover 45 is connected to the slide arm 44, and a sliding pin 411 is fixedly installed on the end of the flip storage arm 41, and the sliding pin 411 is slidably connected to the slide groove on the slide arm 44.

[0087] When printing is required on the flexible material 1 to be printed:

[0088] The linear electric cylinder I 42 is started to contract, driving the traveling frame 31 and the flipping storage arm 41 to flip relative to the shaft 24, so that the inkjet printing module 32 extends outward from the protective shell 22. During this process, the bottom of the traveling frame 31 gradually becomes flush with the support plate 15, and a printing working gap is formed between the bottom of the inkjet printing module 32 and the upper side of the flexible material 1 to be printed.

[0089] When the printing operation on the flexible material to be printed 1 is completed:

[0090] The linear electric cylinder I 42 is started to extend, driving the traveling frame 31 and the flipping storage arm 41 to flip relative to the shaft 24, and the inkjet printing module 32 is stored in the protective shell 22. During this process, the sliding pins 411 on both sides of the flipping storage arm 41 slide in the two slide slot arms 44 respectively, driving the cross arm 43 and the sealing cover 45 to retract into the protective shell 22, covering the bottom of the traveling frame 31 to prevent foreign matter from entering the traveling frame 31.

[0091] By using the above-mentioned scheme of the present embodiment, the extension and retraction of the inkjet printing module 32 relative to the protective shell 22 are controlled by synchronously flipping the traveling frame 31 and the flipping storage arm 41, so that the protective shell 22 maintains a large distance from the upper side of the support plate 15 when it is idle. Compared with the use of the print head close to the support platform in the prior art, the problem of collision with the inkjet printing module 32 during the process of taking and placing the flexible material 1 to be printed can be effectively avoided; in addition, by simultaneously implementing the storage and covering operations of the traveling frame 31, the synchronous control effect of the equipment is increased, and collision of components and damage caused by the collision can be avoided.

[0092] Embodiment five:

[0093] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 4 , Figure 7 , Figure 8 and Fig.10 As shown, in this embodiment, a limit edge 33 is fixedly installed on the outer side of the traveling frame 31, and a curved surface 34 is provided on the side of the limit edge 33 close to the sealing cover 45 to prevent the limit edge 33 from colliding with the outer side surface of the sealing cover 45 during the turning process of the traveling frame 31;

[0094] like Figure 4 , Figure 7 and Figure 8 As shown, an anti-collision shrinkage edge 46 is fixedly installed at the bottom of the sealing cover 45, and the anti-collision shrinkage edge 46 is recessed in the edge of the sealing cover 45 to prevent the bottom of the sealing cover 45 from colliding with the edge of the traveling frame 31 during the flipping process of the traveling frame 31.

[0095] When covering and protecting the bottom of the traveling frame 31: the bottom edge of the limiting edge 33 abuts against the end of the sealing cover 45, the side edge of the traveling frame 31 overlaps with the inner wall of the sealing cover 45, and the end of the anti-collision shrinkage edge 46 abuts against the bottom edge of the traveling frame 31; through multi-directional shielding and protection, instead of the direct plane shielding and protection scheme, the sealing cover 45 and the bottom opening of the traveling frame 31 are guaranteed to fit tightly while avoiding collisions between the various components of the equipment.

[0096] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0097] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. An inkjet printing device with a flexible medium support function, characterized in that: The invention comprises two annular platforms (11) stacked at intervals, and a support plate (15) arranged at the center of the two annular platforms (11); the upper side surface of the support plate (15) and the upper side surface of the annular platform (11) located at the lower side together form a placement surface for supporting a flexible material to be printed (1); and a gap is provided between the two annular platforms (11) for the flexible material to be printed (1) to pass through; The annular platform (11) located at the upper side is mounted with a disk seat (21) via a plurality of connecting arms, a protective shell (22) is rotatably mounted on the bottom of the disk seat (21), and an inkjet printing module (32) is arranged in the protective shell (22); A plurality of reversing seats (16) are rotatably mounted on the annular table (11) located on the upper side, a spherical transfer wheel (17) is rotatably mounted inside the reversing seat (16), and the bottoms of the plurality of spherical transfer wheels (17) are simultaneously tightly fitted against the upper side surface of the flexible material to be printed (1); a plurality of electromagnets (12) are respectively arranged at positions corresponding to each other on the two annular tables (11); The bottom of the support plate (15) is provided with a plurality of diagonal support arms (151), and the bottom of the annular platform (11) located at the lower side is provided with a plurality of support legs (14) that can be detachably fixedly connected to the diagonal support arms (151), and the annular platform (11) is composed of a plurality of crescent-shaped plates connected end to end, and adjacent crescent-shaped plates are fixedly connected via a connecting plate (13).

2. The inkjet printing device with flexible medium supporting function according to claim 1, characterized in that: The annular platforms (11) are provided in two groups, and the arc centers of the two groups of annular platforms (11) with different diameters are located on the same virtual axis; The bottoms of the two annular platforms (11) located at the lower side are each provided with a plurality of supporting legs (14), and the supporting legs (14) at the bottoms of the two annular platforms (11) are connected via a positioning arm, thereby ensuring that the upper surfaces of the two annular platforms (11) located at the lower side are in the same virtual plane.

3. The inkjet printing device with flexible medium supporting function according to claim 1 or 2, characterized in that: The inkjet printing module (32) is installed in the protective housing (22) via a traveling frame (31); The inkjet printing module (32) is slidably mounted inside the traveling frame (31), and the traveling frame (31) is mounted inside the protective housing (22). An internal threaded sleeve (321) is fixedly mounted on the inkjet printing module (32), and a screw rod (35) and a rotation driver IV (36) for driving the screw rod (35) to rotate are mounted on the traveling frame (31). The screw rod (35) and the internal threaded sleeve (321) are connected via a threaded transmission.

4. The inkjet printing device with flexible medium supporting function according to claim 3, characterized in that: The traveling frame (31) is rotatably mounted in the protective shell (22), a shaft (24) is fixedly mounted in the protective shell (22), a flipping and storing arm (41) is rotatably mounted on the shaft (24), and the flipping and storing arm (41) is fixedly mounted on the top of the traveling frame (31).

5. The inkjet printing device with flexible medium supporting function according to claim 4, characterized in that: Limiting sleeves (25) are fixedly mounted on both sides of the interior of the protective housing (22), and cross arms (43) are slidably mounted in the two limiting sleeves (25). The two cross arms (43) are fixedly mounted on both sides of the sealing cover (45), and the sealing cover (45) can cover the bottom of the protective housing (22).

6. The inkjet printing device with flexible medium supporting function according to claim 5, characterized in that: A linear electric cylinder I (42) is installed on the lower side of the top of the protective housing (22); the fixed end of the linear electric cylinder I (42) is rotatably connected to the protective housing (22); the movable end of the linear electric cylinder I (42) is rotatably connected to the flip storage arm (41); the other end of the cross arm (43) connected to the sealing cover (45) is connected to a slide arm (44); a sliding pin (411) is fixedly installed on the end of the flip storage arm (41); the sliding pin (411) is slidably connected to the slide groove on the slide arm (44) by being engaged with the slide groove.

7. The inkjet printing device with flexible medium supporting function according to claim 6, characterized in that: A limiting edge (33) is fixedly mounted on the outer side of the traveling frame (31); a curved surface (34) is provided on a side of the limiting edge (33) close to the sealing cover (45); a bottom edge of the limiting edge (33) can abut against an end of the sealing cover (45); and a side edge of the traveling frame (31) can overlap with an inner side wall of the sealing cover (45).

8. The inkjet printing device with flexible medium supporting function according to claim 6, characterized in that: An anti-collision shrinkage edge (46) is fixedly mounted on the bottom of the sealing cover (45). The anti-collision shrinkage edge (46) is recessed in the edge of the sealing cover (45). The end of the anti-collision shrinkage edge (46) can abut against the bottom edge of the traveling frame (31).

9. The inkjet printing device with flexible medium supporting function according to claim 1 or 2, characterized in that: A linear electric cylinder II (51) is mounted on a connection plate (13) corresponding to the annular platform (11) located on the upper side, and a positioning head (52) is fixedly mounted on the movable end of the linear electric cylinder II (51). The positioning head (52) can penetrate downward through the connection plate (13) and the annular platform (11) located on the upper side, and be plugged into and connected with an embedding groove (53) located at the top of the annular platform (11) located on the lower side.

10. The inkjet printing device with flexible medium supporting function according to claim 1 or 2, characterized in that: A foot pad (141) is detachably fixedly mounted on the bottom of the supporting leg (14); a gasket (142) is fixedly mounted between the upper side of the foot pad (141) and the bottom of the supporting leg (14); a stud is integrally formed on the foot pad (141); the stud is engaged with a threaded hole at the bottom of the supporting leg (14) through a threaded buckle.

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