Double car cleaning device for digital printing machine

Abstract

The present invention discloses a dual-car cleaning device for a digital printing machine, which belongs to the field of printing technology and includes a first printing car and a second printing car. The first printing car and the second printing car are driven to slide by a driving mechanism. Both the first printing car and the second printing car are provided with a mounting plate, an inkjet plate is fixed on the mounting plate, a plurality of nozzles and a drainage member are installed around the mounting plate corresponding to the inkjet plate, an annular sealing gasket is installed around the mounting plate corresponding to the plurality of nozzles, and the first printing car is provided with an operating mechanism that enables the two mounting plates to slide relative to each other, and the annular sealing gaskets respectively located on the two mounting plates are used to abut against each other. The dual-car cleaning device for a digital printing machine of the present invention can simultaneously clean and moisturize the inkjet plates of the dual cars.

Description

Technical Field

[0001] The invention relates to the technical field of printing, in particular to a double-car cleaning device of a digital printing machine. Background Art

[0002] A digital printing machine is a printing device that uses digital technology. It can print patterns directly on fabrics through inkjet printing, thereby achieving a printing effect.

[0003] The Chinese utility model patent with announcement number CN203282856U introduces a nozzle cleaning mechanism, including a main frame, a lifting device is installed on the main frame, a lifting platform is slidably connected to the lifting device, a drainage trough is fixed on the lifting platform, a moisturizing trough is installed in the drainage trough, and a sealing ring is provided at the edge of the moisturizing trough; a plurality of drainage holes are provided on the inner side of the moisturizing trough, a plurality of water outlet holes are provided on the inner side of the drainage trough, and the length of the moisturizing trough is smaller than the length of the drainage trough; a small pipe hole is provided on the bottom surface of the drainage trough, and a large pipe hole is provided on the lifting platform corresponding to the small pipe hole.

[0004] The problem solved in the above scheme is that the nozzle can be sealed in a moisturizing tank in a humid environment. The nozzle can prevent the dye on the nozzle from drying up in a humid environment, thereby maintaining the nozzle and extending its service life. The dye on the nozzle can be cleaned, which can improve printing efficiency and prevent the problem of poor printing effect caused by the nozzle being covered with dye.

[0005] However, in the case of a double-car printing machine, the cleaning mechanism needs to be moved to the narrow space between the two cars, and two separate cleaning mechanisms are also required, which makes the structure complicated.

[0006] Therefore, this application provides another technical solution to this technical problem. Summary of the invention

[0007] The purpose of the present invention is to solve the problems in the prior art and to propose a double-car cleaning device for a digital printing machine.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A double-car cleaning device for a digital printing machine comprises a first printing car and a second printing car, the first printing car and the second printing car are driven to slide by a driving mechanism, the first printing car and the second printing car are both provided with a mounting plate, the mounting plate is fixed with an inkjet plate, a plurality of nozzles and a drainage member are mounted around the mounting plate corresponding to the inkjet plate, an annular sealing gasket is mounted around the mounting plate corresponding to the plurality of nozzles, the first printing car is provided with an operating mechanism for making the two mounting plates slide relative to each other, and the annular sealing gaskets respectively located on the two mounting plates are used to abut against each other.

[0010] The present invention is further configured as follows: the second printing vehicle includes a fixed seat and a sliding seat, the sliding seat is fixed with a guide rod, one end of the guide rod passes through the fixed seat and is fixed with a stop block, the guide rod sleeve is provided with a spring 1, the spring 1 is connected to the stop block and the fixed seat, and the mounting plate of the second printing vehicle is fixed on the sliding seat.

[0011] The present invention is further configured as follows: the sliding seat is provided with a force-bearing member, the operating mechanism comprises a force-applying member and a driving member for driving the force-applying member to move, and the force-applying member is in contact with the force-bearing member.

[0012] The present invention is further configured as follows: the force-bearing member includes two guide protrusions formed on the sliding seat, the two guide protrusions are combined to form a sliding path, the driving member includes a driving motor fixed to a printing vehicle, the force-applying member includes a rotating rod, one end of the rotating rod is fixed to the output shaft of the driving motor, and the other end of the rotating rod is equipped with a protrusion extending into the sliding path, and the protrusion abuts against the guide protrusion.

[0013] The present invention is further configured such that: the position of the nozzle away from the mounting plate and the position toward the inkjet plate form a water mist outlet and a water flow outlet respectively, and a switching component for switching the water flow direction is arranged in the nozzle.

[0014] The present invention is further configured as follows: the nozzle includes an annular seat and a sliding head sliding in the annular seat, the water mist outlet is located at the sliding head, the water flow outlet is located at the side wall of the annular seat, the switching assembly includes a second spring and a block for blocking the water mist outlet, the block is fixed to the annular seat, both ends of the second spring abut against the block and the sliding head, the sliding head is formed with a connecting channel for communicating with the water flow outlet, one end of the connecting channel away from the block opens toward the side wall of the annular seat, and the sliding heads respectively located on the two mounting plates are used to abut against each other.

[0015] The present invention is further configured as follows: the drainage component includes a one-way exhaust valve, a water guide pipe and a connecting valve fixed to each other, and the water guide pipe and the one-way exhaust valve penetrate and are fixed to the mounting plate.

[0016] The present invention is further configured as follows: a guide recess is formed on one end of the annular sealing gasket facing the ground, the drainage member is located at the guide recess, and the one-way exhaust valve is close to the end of the annular sealing gasket away from the ground.

[0017] In summary, the present invention has the following beneficial effects:

[0018] By forming a closed space between the first printing vehicle and the second printing vehicle, the inkjet plate is cleaned by water flow from the nozzle and a certain water level is maintained in the closed space, so that the inkjet plate can be cleaned and moisturized.

[0019] The nozzle can automatically switch between two states: spraying water flow and spraying water mist, so as to ensure the inkjet plate is moisturized when not in use or in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 The structure of the second printing vehicle of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 3 It is a structural schematic diagram of the printing vehicle 1 of the present invention;

[0023] Figure 4 The structure of the second printing vehicle of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 5 The structure of the nozzle of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 6 The structure of the nozzle of the present invention is shown in FIG. Figure 2 .

[0026] In the figure: 1, inkjet printing vehicle 1; 2, driving mechanism; 3, mounting plate; 4, inkjet plate; 5, fixed seat; 6, sliding seat; 7, annular sealing gasket; 8, annular seat; 9, sliding head; 10, water mist outlet; 11, water flow outlet; 12, stopper; 13, spring 2; 14, guide convex; 15, driving motor; 16, rotating rod; 17, convex block; 18, guide rod; 19, stop block; 20, spring 1; 21, one-way exhaust valve; 22, water guide pipe; 23, connecting valve; 24, connecting channel. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments.

[0028] like Figure 1As shown, the present application provides a dual-car cleaning device for a digital printing machine, which can be mounted on a digital printing machine platform, including a printing car 1 and a printing car 2. The digital printing machine platform is provided with a driving mechanism 2, and the driving mechanism 2 is provided with two groups. The two groups of driving mechanisms 2 respectively drive the printing car 1 and the printing car 2 to slide. The driving mechanism 2 includes a slide rail slider assembly and a belt drive assembly. The belt drive assemblies respectively located in the two groups of driving mechanisms 2 are driven by the same control motor. The printing car 1 and the printing car 2 are respectively installed on the sliders of the two groups of driving mechanisms 2, and are connected to the belts of the two groups of driving mechanisms 2. The printing car 1 and the printing car 2 can slide simultaneously along the slide rail under the action of the belt, so that the positions of the printing car 1 and the printing car 2 are moderately corresponding, and then the same position on both sides of the cloth can be printed simultaneously.

[0029] like Figure 2 and Figure 3 As shown, both the printing vehicle 1 and the printing vehicle 2 are provided with a mounting plate 3, on which an inkjet plate 4 is fixed, and the inkjet plate 4 is used for printing. A number of nozzles are installed around the mounting plate 3 corresponding to the inkjet plate 4, and the nozzles are connected to the water pump through water pipes, and a water mist outlet 10 is provided at a position of the nozzle away from the mounting plate 3. When the printing vehicle 1 and the printing vehicle 2 slide and the inkjet plate 4 is printing, the nozzle will spray water mist through the water mist outlet 10, thereby increasing the environmental humidity around the fabric and the inkjet plate 4, reducing the probability of static electricity generation, thereby reducing the interference of static electricity on ink jetting, and improving the printing effect, and annular sealing gaskets 7 are installed around the mounting plate 3 corresponding to the number of nozzles.

[0030] like Figure 5 and Figure 6 As shown, a water flow outlet 11 is arranged at the position of the nozzle facing the inkjet plate 4, the nozzle includes an annular seat 8 and a sliding head 9, the annular seat 8 is fixedly connected to the mounting plate 3, and the sliding head 9 is slidably arranged in the annular seat 8, the water mist outlet 10 is located at the sliding head 9, a water flow outlet 11 is opened on the side wall of the annular seat 8, and the opening direction of the water flow outlet 11 faces the inkjet plate 4, the sliding head 9 is formed with a connecting channel 24 for communicating with the water flow outlet 11, and one end of the connecting channel 24 opens toward the side wall of the annular seat 8, wherein a switching component is arranged in the annular seat 8 and the sliding head 9, the switching component includes a spring 13 and a block 12, the block 12 is used to block the water inlet end of the water mist outlet 10, and the block 12 is fixed to the annular seat 8, and both ends of the spring 13 are in contact with the block 12 and the sliding head 9.

[0031] In the initial state, the sliding head 9 slides under the action of the spring and maintains contact with the annular seat 8. At this time, the opening of one end of the connecting channel 24 facing the side wall of the annular seat 8 is misaligned with the water flow outlet 11, so that the water in the annular seat 8 cannot pass through the water flow outlet 11, and the nozzle cannot spray water. At this time, the block 12 will not block the water mist outlet 10, and the water in the annular seat 8 can pass through the water mist outlet 10, so that the nozzle will spray water mist.

[0032] like Figure 2 and Figure 4 As shown, the second printing vehicle includes a fixed seat 5 and a sliding seat 6. The mounting plate 3 of the second printing vehicle is fixed on the sliding seat 6. The sliding seat 6 is fixed with a guide rod 18. One end of the guide rod 18 passes through the fixed seat 5 and is fixed with a stop block 19, so that the sliding seat 6 and the fixed seat 5 can slide relative to each other, and the fixed seat 5 is fixed to the slider and belt of the driving mechanism 2, and the guide rod 18 is provided with a spring 20, and the spring 20 is connected to the stop block 19 and the fixed seat 5. In the initial state, the fixed seat 5 and the sliding seat 6 and the fixed seat 5 will remain in contact under the action of the spring 20.

[0033] like Figure 1 , Figure 2 as well as Figure 3 As shown, a force-bearing member is provided on the outer side wall of the sliding seat 6, and the force-bearing member includes two guide protrusions 14 formed on the sliding seat 6, and the two guide protrusions 14 are combined to form a sliding path, and the sliding path is inclined, and one end of the sliding path is opened close to the printing vehicle 1, and the other end of the sliding path is opened away from the printing vehicle 1, wherein the printing vehicle 1 is provided with an operating mechanism, and the operating mechanism includes a force-applying member and a driving member, and the driving member includes a driving motor 15, and the driving motor 15 is fixedly mounted on the printing vehicle 1, and the force-applying member includes a rotating rod 16, one end of the rotating rod 16 is fixed to the output shaft of the driving motor 15, and the other end of the rotating rod 16 is installed with a protrusion 17.

[0034] After the printing vehicle 1 and the printing vehicle 2 complete the printing, the driving motor 15 is controlled, the rotating rod 16 will rotate under the action of the driving motor 15, the protrusion 17 will rotate and extend into the sliding channel, the protrusion 17 will abut against the guide protrusion 14, and through the interaction of forces, the sliding seat 6 will overcome the elastic force of the spring 1 20 to slide, so that the sliding seat 6 slides in the direction close to the printing vehicle 1 until the annular sealing gaskets 7 respectively located on the two mounting plates 3 are used to abut against each other, and the driving motor 15 stops working. At this time, the two mounting plates 3 and the two annular sealing gaskets 7 will form a closed space, and the nozzle and the inkjet plate 4 are both located in the closed space.

[0035] When the sliding seat 6 slides toward the direction close to the printing vehicle 1, the sliding heads 9 located on the two mounting plates 3 will abut against each other, and the sliding head 9 will overcome the elastic force of the spring 2 13 to slide toward the direction close to the block 12. When the end of the sliding head 9 away from the mounting plate 3 is flush with the opening of the annular seat 8, the sliding head 9 contacts the block 12, so that the spray head is blocked by the block 12, and the opening of the connecting channel 24 at one end facing the side wall of the annular seat 8 corresponds to the water flow outlet 11, so that the nozzle can not spray water mist but can spray water flow.

[0036] like Figure 2 As shown, a drainage component is arranged around the mounting plate 3 corresponding to the inkjet plate 4, and the drainage component is located on the inner side of the annular sealing gasket 7, so that when a closed space is formed between the printing vehicle 1 and the printing vehicle 2, the drainage component is also located in the closed space, wherein the drainage component includes a one-way exhaust valve 21 and a water pipe 22 and a connecting valve 23 fixed to each other, the water pipe 22 and the one-way exhaust valve 21 pass through and are fixed to the mounting plate 3, the connecting valve 23 is controlled by a solenoid valve, so that it can control whether water can flow through the water pipe 22, and a guiding recess is formed at one end of the annular sealing gasket 7 facing the ground, the drainage component is located at the guiding recess, and the one-way exhaust valve 21 is close to the end of the annular sealing gasket 7 away from the ground.

[0037] After the closed space is formed, the water pipe 22 is connected through the connecting valve 23. At this time, the nozzle will spray water under the action of the water pump, and the water will be sprayed on the inkjet plate 4 to clean the residual ink on the inkjet plate 4. The sewage generated by the cleaning will flow to the wastewater tank through the water pipe 22 for collection. After the cleaning is completed, the connecting valve 23 makes the water pipe 22 unconnected, and the nozzle continues to spray water. The air in the closed space will flow out through the one-way exhaust valve 21 until the water level in the closed space completely immerses the inkjet plate 4. At this time, the water injection into the closed space is stopped, and the inkjet plate 4 will remain in contact with the water, thereby moisturizing the inkjet plate 4.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A double-carriage cleaning device for a digital printing machine includes a first printing car and a second printing car, wherein the first printing car and the second printing car are driven to slide by a driving mechanism, and the characteristics are: The first and second printing vehicles are both provided with a mounting plate, the mounting plate is fixed with an inkjet plate, a plurality of nozzles and drainage parts are installed around the mounting plate corresponding to the inkjet plate, an annular sealing gasket is installed around the mounting plate corresponding to the plurality of nozzles, the first printing vehicle is provided with an operating mechanism for making the two mounting plates slide relative to each other, the annular sealing gaskets respectively located on the two mounting plates are used to abut against each other, the position of the nozzle away from the mounting plate and the position toward the inkjet plate form a water mist outlet and a water flow outlet respectively, a switching component for switching the water flow direction is arranged in the nozzle, the second printing vehicle includes a fixed seat and a sliding seat, the sliding seat is fixed with a guide rod, one end of the guide rod passes through the fixed seat and then A stop block is fixed, the guide rod sleeve is provided with a spring 1, the spring 1 is connected to the stop block and the fixed seat, the mounting plate of the second printing vehicle is fixed to the sliding seat, the sliding seat is provided with a force-bearing member, the operating mechanism includes a force-applying member and a driving member that drives the force-applying member to move, the force-applying member abuts against the force-bearing member, the force-bearing member includes two guide protrusions formed on the sliding seat, the two guide protrusions are combined to form a sliding path, the driving member includes a driving motor fixed to the first printing vehicle, the force-applying member includes a rotating rod, one end of the rotating rod is fixed to the output shaft of the driving motor, and the other end of the rotating rod is provided with a protrusion extending into the sliding path, and the protrusion abuts against the guide protrusion.

2. The double-car cleaning device for a digital printing machine according to claim 1, characterized in that: The nozzle includes an annular seat and a sliding head sliding in the annular seat, the water mist outlet is located on the sliding head, and the water flow outlet is located on the side wall of the annular seat. The switching assembly includes a second spring and a block for blocking the water mist outlet, the block is fixed on the annular seat, both ends of the second spring abut against the block and the sliding head, the sliding head is formed with a connecting channel for communicating with the water flow outlet, one end of the connecting channel away from the block opens toward the side wall of the annular seat, and the sliding heads respectively located on the two mounting plates are used to abut against each other.

3. The double-car cleaning device for a digital printing machine according to claim 1, characterized in that: The drainage component comprises a one-way exhaust valve, a water guide pipe and a connecting valve fixed to each other, and the water guide pipe and the one-way exhaust valve penetrate and are fixed to the mounting plate.

4. The double-car cleaning device for a digital printing machine according to claim 3 is characterized in that: A guide recess is formed on one end of the annular sealing gasket facing the ground, the drainage member is located at the guide recess, and the one-way exhaust valve is close to one end of the annular sealing gasket away from the ground.

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