Rotary screen and digital printing combined printing device and method

Abstract

The invention discloses a rotary screen and digital printing combined printing device and method, and relates to the technical field of printing device.According to the scheme, the rotary screen and digital printing combined printing device comprises a U-shaped base and a support which are sequentially arranged, two supporting rollers are symmetrically connected to the interior of the U-shaped base in a penetrating and rotating mode, and a plurality of adjustable driving mechanisms are installed on the outer surface of the support; a rotary screen printing roller is clamped in the adjustable driving mechanism, a first drying machine, a digital printing machine and a second drying machine are sequentially and fixedly installed on the upper surface of the support, and an adjustable cleaning mechanism is installed in the U-shaped seat. Through the arrangement of the adjustable driving mechanism and the rotary screen printing roller, the rotary screen printing roller is convenient to replace, adjustment can be carried out according to the rotary screen printing rollers with different diameters and cloth with different thicknesses, through the arrangement of the adjustable cleaning mechanism, the cloth can be subjected to air penetration, sweeping and dust removal in the using process, and the dust removal effect is improved; and adjustment can be carried out according to the width and thickness of the cloth.

Description

Technical Field

[0001] The present invention relates to the technical field of printing devices, and in particular to a printing device and method combining a rotary screen with digital printing. Background Art

[0002] With the rapid development of digital inkjet printing technology, its advantages are increasingly favored by the textile printing industry, especially its printing quality that does not require plate making and is close to the image level has greatly attracted people's attention. Its feature of printing without plate making makes it possible to produce small batches of personalized textile printing, and its high-quality printing quality makes the quality of textile printing patterns more gorgeous. All of these make textile printing manufacturers urgently need to combine digital inkjet printing technology with traditional rotary screen printing production processes. After searching, the Chinese patent publication number CN206913904U discloses a digital inkjet and rotary screen printing combined machine, including a frame, a rotary screen printing device, a digital inkjet printing device, a printing device and a control device; multiple rotary screen printing mechanisms are arranged on the frame, and the rotary screen printing mechanism includes a rotary screen printing roller, a V-shaped transmission seat and a drive motor. The rotary screen printing roller is installed on the frame through the V-shaped transmission seat and is driven by the drive motor through the V-shaped transmission seat. This technical solution is transmitted through a V-shaped transmission seat. Although round screen printing rollers of different diameters can be installed, when in use, the V-shaped transmission seat structure is fixed and cannot be adjusted according to the thickness of the fabric and the diameter of the round screen printing roller, thus affecting normal use.

[0003] The Chinese patent publication number CN218536005U discloses a rotary screen digital wallpaper printer, which includes a printer body, a dust cleaning mechanism and a dust suction cleaning mechanism. A base is fixedly installed at the bottom of the printer body; the dust cleaning mechanism is located in front of the feeding end of the printer body, and the dust cleaning mechanism includes a top plate, a vertical plate, a dust hood, an upper roller, a cleaning brush, an electric push rod, an elastic connector and a rotation drive assembly, and the bottom end of the vertical plate is fixedly connected to one side of the upper surface of the base. Although this technical solution can clean the dust attached to the surface of the fabric, the dust removal effect is limited during use, and the dust embedded in the fabric cannot be cleaned, and it is inconvenient to adjust and clean. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a printing device and method combining rotary screen and digital printing, which solves the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A printing device and method combining a rotary screen and digital printing, comprising a U-shaped seat and a bracket arranged in sequence, wherein two support rollers are symmetrically penetrated and rotatably connected inside the U-shaped seat, a plurality of adjustable driving mechanisms are installed on the outer surface of the bracket, a rotary screen printing roller is clamped inside the adjustable driving mechanism, a first dryer, a digital printing machine and a second dryer are fixedly installed on the upper surface of the bracket in sequence, and an adjustable cleaning mechanism is installed inside the U-shaped seat;

[0006] The adjustable driving mechanism includes a first cylinder fixedly installed on the bottom of the bracket, the bottom end of the first cylinder is fixedly connected to a U-shaped frame, the interior of the U-shaped frame is rotatably connected with a first bidirectional screw rod, the outer surface of the first bidirectional screw rod is symmetrically threaded with two side plates, the top of the side plate is fixedly installed with a driving motor, and the output shaft of the driving motor is fixedly connected to a positioning frame.

[0007] Preferably, the rotary screen printing roller includes a printing roller body, both ends of the printing roller body are fixedly connected with clamping blocks, the clamping blocks are clamped with the inside of the positioning frame, and a placement groove is provided on the top of the positioning frame to facilitate the connection between the printing roller body and the adjustable driving mechanism, and facilitate the installation and disassembly of the printing roller body.

[0008] Preferably, a first motor is fixedly mounted on one side of the U-shaped frame, and an output shaft of the first motor is fixedly connected to one end of a first bidirectional screw rod, so that the first motor can drive the first bidirectional screw rod to rotate.

[0009] Preferably, connecting plates are fixedly connected to both sides of the outer surface of the bracket and close to the U-shaped seat, and a guide roller is rotatably connected between the two connecting plates to guide the cloth after dust removal.

[0010] Preferably, the adjustable cleaning mechanism includes a symmetrically arranged dust hood and an air outlet hood, one side of the dust hood is fixedly connected to the inner wall of the U-shaped seat, a second cylinder is fixedly connected between the bottom of the air outlet hood and the bottom of the U-shaped seat, a filter box and an exhaust fan are fixedly installed on the top of the U-shaped seat in sequence, two branch pipes are fixedly connected between the top of the dust hood and the filter box, one side of the bottom end of the filter box is fixedly connected to the suction end of the exhaust fan, an air duct is fixedly connected between the air outlet end of the exhaust fan and the bottom end of the air outlet hood, two filter nets are inserted and penetrated in sequence inside the filter box, the cloth can be ventilated for dust removal, and the dust embedded in the cloth can be removed, thereby improving the dust removal effect.

[0011] Preferably, an air collecting scoop is fixedly connected to the interior of the filter box and located between the two filter screens, a one-way valve is fixedly connected to the bottom end of the air collecting scoop, and solenoid valves are fixedly installed inside the two branch pipes to facilitate replacement of the top filter screen.

[0012] Preferably, a second motor is fixedly mounted on one side of the outer surface of the dust hood, and a cleaning roller is fixedly connected to the output shaft of the second motor, which can clean the surface of the cloth and further improve the dust removal effect.

[0013] Preferably, a third motor is fixedly installed on one side of the outer surface of the dust hood and the air outlet hood, the output shaft of the third motor is fixedly connected to a second bidirectional screw, the outer surface of the second bidirectional screw is symmetrically threaded with two baffles, and the baffles are slidably connected to the corresponding inner walls of the dust hood and the air outlet hood, so as to facilitate the adjustment of the air outlet and dust suction area according to the width of the cloth to avoid affecting the dust removal effect.

[0014] Preferably, an outer surface of the baffle located inside the dust cover is provided with an opening that matches the cleaning roller, so as to facilitate the normal operation of the cleaning roller.

[0015] A printing method comprises the following steps:

[0016] S1. The cloth passes through the adjustable cleaning mechanism, which can deeply clean the cloth and improve the dust removal effect;

[0017] S2, the fabric passes through the adjustable driving mechanism and the rotary screen printing roller, and can be rotary screen printed by the rotary screen printing roller;

[0018] S3, the fabric passes through the first dryer, the digital printing machine and the second dryer, and can be dried after rotary screen printing, and then digitally printed again, and dried again.

[0019] The present invention provides a printing device and method combining rotary screen and digital printing, which has the following beneficial effects:

[0020] 1. The printing device and method combining a rotary screen and digital printing, through the provision of an adjustable driving mechanism and a rotary screen printing roller, not only facilitates the replacement of the rotary screen printing roller, but also can adjust the height of the rotary screen printing roller according to the diameter of the rotary screen printing roller, is convenient for use, and can be adjusted according to rotary screen printing rollers of different diameters and thicknesses of fabrics, thereby solving the problem that the V-shaped transmission seat structure of the existing printing machine is fixed and it is inconvenient to adjust according to rotary screen printing rollers of different diameters and thicknesses of fabrics.

[0021] 2. This printing device and method combining a rotary screen with digital printing can, through the adjustable cleaning mechanism, perform air cleaning and dust removal on the fabric during use, thereby improving the dust removal effect. It can also be adjusted according to the width and thickness of the fabric, and the filter can be disassembled and replaced without stopping the machine, thereby improving work efficiency, thereby solving the problems of limited dust removal effect of existing devices, inability to clean dust embedded in the fabric, and inconvenience in adjustment and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the adjustable driving mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the positioning frame of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the adjustable cleaning mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the filter box of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the dust hood and the air outlet hood of the present invention.

[0029] In the figure, 1, U-shaped seat; 2, bracket; 3, support roller; 4, adjustable driving mechanism; 41, first cylinder; 42, U-shaped frame; 43, first bidirectional screw rod; 44, side plate; 45, driving motor; 46, positioning frame; 47, placement slot; 48, first motor; 5, round screen printing roller; 51, printing roller body; 52, block; 6, first dryer; 7, digital printing machine; 8, second dryer; 9, adjustable cleaning mechanism; 91, dust hood; 92, air outlet hood; 93, second cylinder; 94, filter box; 95, exhaust fan; 96, branch pipe; 97, air duct; 98, filter net; 99, wind collecting bucket; 910, one-way valve; 911, second motor; 912, cleaning roller; 913, third motor; 914, second bidirectional screw rod; 915, baffle; 10, connecting plate; 11, guide roller. DETAILED DESCRIPTION

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

[0031] Embodiment 1:

[0032] like Figures 1 to 4As shown, a printing device and method combining a rotary screen and digital printing, comprising a U-shaped seat 1 and a bracket 2 arranged in sequence, wherein two support rollers 3 are symmetrically penetrated and rotatably connected inside the U-shaped seat 1, a plurality of adjustable driving mechanisms 4 are installed on the outer surface of the bracket 2, a rotary screen printing roller 5 is clamped inside the adjustable driving mechanism 4, a first dryer 6, a digital printing machine 7 and a second dryer 8 are fixedly installed on the upper surface of the bracket 2 in sequence, the adjustable driving mechanism 4 comprises a first cylinder 41 fixedly installed at the bottom of the bracket 2, a U-shaped frame 42 is fixedly connected at the bottom end of the first cylinder 41, a first bidirectional screw rod 43 is rotatably connected inside the U-shaped frame 42, and two side plates 44 are symmetrically threadedly connected on the outer surface of the first bidirectional screw rod 43, a driving motor 45 is fixedly installed at the top of the side plate 44, and a positioning frame 46 is fixedly connected to the output shaft of the driving motor 45. The rotary screen printing roller 5 comprises a printing roller body 51, and a clamping block 52 is fixedly connected at both ends of the printing roller body 51, and the clamping block 52 is clamped with the inside of the positioning frame 46, and a placement groove 47 is provided on the top of the positioning frame 46. A first motor 48 is fixedly mounted on one side of the U-shaped frame 42, and an output shaft of the first motor 48 is fixedly connected to one end of the first bidirectional screw 43. Connecting plates 10 are fixedly connected to both sides of the outer surface of the bracket 2 and close to the U-shaped seat 1, and a guide roller 11 is rotatably connected between the two connecting plates 10.

[0033] The operation of the first cylinder 41 can drive the rotary screen printing roller 5 to rise and fall, and can be adjusted according to the thickness of the cloth and the diameter of the rotary screen printing roller 5. When the rotary screen printing roller 5 needs to be replaced or removed, it is only necessary to start the first motor 48. The rotation of the first motor 48 drives the first bidirectional screw rod 43 to rotate, and the side plates 44 and the positioning frame 46 on both sides can be driven to move relative to each other through the thread. The matched block 52 can quickly realize the installation and removal of the rotary screen printing roller 5, thereby solving the problem that the V-shaped transmission seat structure of the existing printing machine is fixed and it is inconvenient to adjust according to the rotary screen printing rollers of different diameters and the thickness of the cloth.

[0034] Embodiment 2:

[0035] like Figure 1 and Figure 2 As shown, an adjustable cleaning mechanism 9 is installed inside the U-shaped seat 1, and the adjustable cleaning mechanism 9 includes a dust hood 91 and an air outlet hood 92 which are symmetrically arranged. One side of the dust hood 91 is fixedly connected to the inner wall of the U-shaped seat 1, and a second cylinder 93 is fixedly connected between the bottom of the air outlet hood 92 and the bottom of the U-shaped seat 1, and a filter box 94 and an exhaust fan 95 are fixedly installed on the top of the U-shaped seat 1 in sequence. Two branch pipes 96 are fixedly connected between the top of the dust hood 91 and the filter box 94, and one side of the bottom end of the filter box 94 is fixedly communicated with the suction end of the exhaust fan 95, and an air duct 97 is fixedly communicated between the air outlet end of the exhaust fan 95 and the bottom end of the air outlet hood 92, and two filter screens 98 are inserted and penetrated in sequence inside the filter box 94.

[0036] The operation of the exhaust fan 95 can generate suction inside the dust hood 91 and wind inside the air outlet hood 92, thereby allowing air to pass through the fabric to remove dust. The dust embedded in the fabric can be removed and sucked away, thereby improving the dust removal effect, thereby solving the problem that the existing printing machine can only remove dust from the surface of the fabric but not from the inside.

[0037] An air collecting scoop 99 is fixedly connected to the interior of the filter box 94 and between the two filter screens 98 . A one-way valve 910 is fixedly connected to the bottom end of the air collecting scoop 99 . Solenoid valves are fixedly installed inside the two branch pipes 96 .

[0038] By setting the one-way valve 910, the solenoid valve and the two filters 98, when one filter 98 is replaced, the other filter 98 can be used normally, and the air can be filtered normally without stopping the machine for replacement, which can improve work efficiency and solve the problem that the existing printing machine needs to be stopped for cleaning and reduces work efficiency.

[0039] A second motor 911 is fixedly mounted on one side of the outer surface of the dust cover 91 , and a cleaning roller 912 is fixedly connected to the output shaft of the second motor 911 .

[0040] The second motor 911 rotates to drive the cleaning roller 912 to rotate, so as to clean the dust on the surface of the cloth and improve the cleaning effect.

[0041] A third motor 913 is fixedly mounted on one side of the outer surface of the dust hood 91 and the air outlet hood 92. The output shaft of the third motor 913 is fixedly connected to a second bidirectional screw 914. Two baffles 915 are symmetrically threadedly connected to the outer surface of the second bidirectional screw 914. The baffles 915 are slidably connected to the inner walls of the corresponding dust hood 91 and the air outlet hood 92. The outer surface of the baffle 915 located inside the dust hood 91 is provided with an opening that matches the cleaning roller 912.

[0042] The third motor 913 rotates to drive the second bidirectional screw rod 914 to rotate, and the corresponding two baffles 915 can be driven to move relative to each other through the thread, and can be adjusted according to the width of the cloth, thereby solving the problem that the cleaning structure of the existing printing machine is inconvenient to adjust.

[0043] Embodiment 3:

[0044] like Figures 1 to 7 As shown, a printing method comprises the following steps:

[0045] S1, the cloth passes through the adjustable cleaning mechanism 9, which can perform deep cleaning on the cloth to improve the dust removal effect;

[0046] S2, the cloth passes through the adjustable driving mechanism 4 and the rotary screen printing roller 5, and can be rotary screen printed by the rotary screen printing roller 5;

[0047] S3, the fabric passes through the first drying machine 6, the digital printing machine 7 and the second drying machine 8, and can be dried after rotary screen printing, and then digitally printed again, and dried again.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A printing device combining a rotary screen and digital printing, comprising a U-shaped seat (1) and a bracket (2) arranged in sequence, characterized in that: Two support rollers (3) are symmetrically and rotatably connected inside the U-shaped seat (1); a plurality of adjustable driving mechanisms (4) are installed on the outer surface of the bracket (2); a round screen printing roller (5) is clamped inside the adjustable driving mechanism (4); a first drying machine (6), a digital printing machine (7) and a second drying machine (8) are fixedly installed on the upper surface of the bracket (2) in sequence; and an adjustable cleaning mechanism (9) is installed inside the U-shaped seat (1); The adjustable driving mechanism (4) comprises a first cylinder (41) fixedly mounted on the bottom of the bracket (2); the bottom end of the first cylinder (41) is fixedly connected to a U-shaped frame (42); a first bidirectional screw rod (43) is rotatably connected to the inside of the U-shaped frame (42); the outer surface of the first bidirectional screw rod (43) is symmetrically threadedly connected to two side plates (44); a driving motor (45) is fixedly mounted on the top end of the side plate (44); and the output shaft of the driving motor (45) is fixedly connected to a positioning frame (46).

2. A printing device combining rotary screen and digital printing according to claim 1, characterized in that: The rotary screen printing roller (5) comprises a printing roller body (51), both ends of which are fixedly connected with clamping blocks (52), the clamping blocks (52) being clamped with the inside of a positioning frame (46), and a placement groove (47) is provided on the top of the positioning frame (46).

3. The printing device combining rotary screen and digital printing according to claim 1, characterized in that: A first motor (48) is fixedly mounted on one side of the U-shaped frame (42), and an output shaft of the first motor (48) is fixedly connected to one end of a first bidirectional screw rod (43).

4. The printing device combining rotary screen and digital printing according to claim 1, characterized in that: Connecting plates (10) are fixedly connected to both sides of the outer surface of the bracket (2) and at positions close to the U-shaped seat (1), and a guide roller (11) is rotatably connected between the two connecting plates (10).

5. The printing device combining rotary screen and digital printing according to claim 1, characterized in that: The adjustable cleaning mechanism (9) comprises a symmetrically arranged dust hood (91) and an air outlet hood (92); one side of the dust hood (91) is fixedly connected to the inner wall of the U-shaped seat (1); a second cylinder (93) is fixedly connected between the bottom of the air outlet hood (92) and the bottom of the U-shaped seat (1); a filter box (94) and an exhaust fan (95) are fixedly installed on the top of the U-shaped seat (1) in sequence; two branch pipes (96) are fixedly connected between the top of the dust hood (91) and the filter box (94); one side of the bottom end of the filter box (94) is fixedly connected to the suction end of the exhaust fan (95); an air duct (97) is fixedly connected between the air outlet end of the exhaust fan (95) and the bottom end of the air outlet hood (92); and two filter screens (98) are inserted and penetrated in sequence inside the filter box (94).

6. A printing device combining rotary screen and digital printing according to claim 5, characterized in that: An air collecting scoop (99) is fixedly connected inside the filter box (94) and between the two filter screens (98), a one-way valve (910) is fixedly connected to the bottom end of the air collecting scoop (99), and electromagnetic valves are fixedly installed inside the two branch pipes (96).

7. The printing device combining rotary screen and digital printing according to claim 5, characterized in that: A second motor (911) is fixedly mounted on one side of the outer surface of the dust cover (91), and a cleaning roller (912) is fixedly connected to the output shaft of the second motor (911).

8. A printing device combining rotary screen and digital printing according to claim 7, characterized in that: A third motor (913) is fixedly mounted on one side of the outer surface of the dust hood (91) and the air outlet hood (92); the output shaft of the third motor (913) is fixedly connected to a second bidirectional screw rod (914); the outer surface of the second bidirectional screw rod (914) is symmetrically threaded with two baffles (915); the baffles (915) are slidably connected to the inner walls of the corresponding dust hood (91) and the air outlet hood (92).

9. A printing device combining rotary screen and digital printing according to claim 8, characterized in that: The outer surface of the baffle (915) located inside the dust cover (91) is provided with an opening that matches the cleaning roller (912).

10. A printing method, comprising a printing device combining a rotary screen and digital printing as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the cloth passes through the adjustable cleaning mechanism (9), and the adjustable cleaning mechanism (9) can perform deep cleaning on the cloth to improve the dust removal effect; S2, the cloth passes through the adjustable driving mechanism (4) and the rotary screen printing roller (5), and can be rotary screen printed by the rotary screen printing roller (5); S3, the fabric passes through a first drying machine (6), a digital printing machine (7) and a second drying machine (8), and can be dried after rotary screen printing, and then digitally printed again, and then dried again.

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