Digital nozzle lifting device

Abstract

The utility model relates to the technical field of digital printing, in particular to a digital spray head lifting device which comprises a lifting seat, a plurality of digital spray printing heads, two position adjusting mechanisms, a plurality of guide rollers and a plurality of winding rollers rotationally arranged on the feeding side of the first guide roller. The position adjusting mechanism comprises a fixed seat arranged outside one side of the lifting seat, a sliding seat slidably connected to the fixed seat, a translation driving module arranged on the fixed seat and in driving connection with the sliding seat, and a lifting driving module arranged on the sliding seat and in driving connection with the lifting seat, and the translation driving module is used for driving the sliding seat to translate; the lifting driving module is used for driving the lifting base to ascend and descend, and a belt receiving sensor is arranged on the outer side of the winding roller and electrically connected with the lifting driving module. According to the utility model, the lifting and horizontal position adjustment of the digital jet printing head can be realized, the connecting head of the material belt can be avoided, the digital jet printing of the material belts with different thicknesses can be realized, and the material belt can be conveniently replaced or threaded.

Description

TECHNICAL FIELD

[0001] The utility model relates to digital printing technical field especially is a kind of digital nozzle lifting device. BACKGROUND

[0002] Digital jet printing machine is generally used to print on soft material such as cloth, paper and the like, and a conveying assembly is used to drive the soft material to be conveyed to the jet printing platform for printing. Digital printing is widely used. In the prior art, a digital printer nozzle lifting device is disclosed in Chinese patent document No. 202120468148.3, which comprises a nozzle body and a support side wall. A light rod is fixedly connected to the inner side of the support side wall through a fixed connecting block. A sliding cylinder is movably connected to the side surface of the light rod. A connecting piece is fixedly connected to the side surface of the nozzle body, and the connecting piece is fixedly connected to the sliding cylinder. A fixed frame is fixedly connected to the inner side of the support side wall near the top. A driving motor is fixedly connected to the top of the fixed frame. A transmission shaft is fixedly connected to the output end of the driving motor. A transmission screw rod is movably connected to the inner side of the support side wall. The transmission screw rod is threadedly connected to the connecting piece. The bottom end of the transmission shaft is drivingly connected to the transmission screw rod through a transmission member. The patent document can only realize the lifting adjustment of the nozzle body, and cannot realize the automatic sensing of the belt connection position. Therefore, the defect is obvious, and a solution is urgently needed. SUMMARY

[0003] To solve the above technical problems, the purpose of the utility model is to provide a digital nozzle lifting device.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A digital nozzle lifting device comprises a lifting seat, a plurality of digital jet printing heads installed on the lifting seat, two position adjustment mechanisms symmetrically arranged at the two ends of the lifting seat, a plurality of guide rollers arranged side by side below the bottom surface of the lifting seat and below the digital jet printing heads, and a plurality of winding rollers arranged on the material feeding side of the first guide roller. The position adjustment mechanism comprises a fixed seat arranged outside one side of the lifting seat, a sliding seat slidingly connected to the fixed seat, a translation driving module installed on the fixed seat and drivingly connected to the sliding seat, and a lifting driving module installed on the sliding seat and drivingly connected to the lifting seat. The translation driving module is used to drive the sliding seat to translate, and the lifting driving module is used to drive the lifting seat to lift. The outer side of the winding roller is provided with a belt connection sensor, and the belt connection sensor is electrically connected to the lifting driving module.

[0006] Further, the belt connection sensor is a color marker electric eye.

[0007] Further, the lifting driving module comprises two lifting driving cylinders, cylinder bodies of the lifting driving cylinders are arranged on the sliding base, and piston rods of the lifting driving cylinders are fixedly connected with the lifting seat.

[0008] Further, the digital nozzle lifting device further comprises an elastic supporting assembly arranged between the end of the lifting seat and the sliding base, and the elastic supporting assembly is used for elastically supporting the lifting seat.

[0009] Further, an end side wall of the lifting seat is provided with a lifting stroke hole, the elastic supporting assembly comprises a guide column seat arranged on the sliding base, an elastic piece sleeved outside a column body of the guide column seat, a guide sleeve arranged on the end of the lifting seat and slidingly penetrating the guide column, and a cap arranged on a top end of the guide column seat, the column body top end of the guide column seat extends into the lifting stroke hole, the cap is located in the lifting stroke hole, a bottom end of the elastic piece abuts against a seat plate of the guide column seat, and a top end of the elastic piece is used for abutting against a bottom end surface of the guide sleeve.

[0010] Further, the elastic piece is a spring.

[0011] Further, the end of the lifting seat is provided with a descending limit adjusting module, a lifting limit end of the descending limit adjusting module extends into the lifting stroke hole and is located above the cap.

[0012] Further, the descending limit adjusting module comprises a threaded stud threadedly connected with the end of the lifting seat, a rotary driver arranged on the end of the lifting seat, a driving wheel sleeved on a rotary shaft of the rotary driver, a plurality of driven wheels rotationally connected with the end of the lifting seat, and a transmission belt wound on the driving wheel and the plurality of driven wheels, a bottom end of the threaded stud extends into the lifting stroke hole, a top end of the threaded stud slidingly penetrates a center hole of one of the driven wheels, the threaded stud is keyed connected with an inner wall of the center hole of the driven wheel, the bottom end of the threaded stud is used for abutting against a top surface of the cap, and the threaded stud can be lifted and moved relative to the driven wheel.

[0013] Further, an axial key groove is arranged on a circumferential side wall of the threaded stud, and a connecting key is arranged on the inner wall of the center hole of the driven wheel, the connecting key extends into the key groove, and the connecting key and the key groove can be lifted and slid relative to the lifting.

[0014] The utility model discloses beneficial effect: in practical application, the material band is in turn after winding through a plurality of winding rollers, and the material band moves along the top side of a plurality of guide rollers, with the movement of the material band, a plurality of digital jet printing heads carry out digital jet printing to the material band, when the material band joint sensor detects the material band joint position (the position of the two material bands of the material band joint), the material band joint sensor feedback signal to the lifting drive module, so that the lifting drive module drives the lifting seat to take a plurality of digital jet printing heads and make the distance between digital jet printing head and guide roller greater than the thickness of the material band joint position, so that the material band joint position passes smoothly, avoid the material band joint position and digital jet printing head friction and wear digital jet printing head, to realize avoiding the material band joint position, in addition, when needing to wear the band, the sliding drive module drives the sliding seat to take the lifting seat and a plurality of digital jet printing heads horizontal movement, so that the lifting seat is far away from the guide roller, and it is convenient to replace the material band or wear the material band. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Fig. 2 It is the three-dimensional structure schematic diagram of the position adjusting mechanism of the utility model.

[0017] Fig. 3 It is the sectional view of the position adjusting mechanism of the utility model.

[0018] BRIEF DESCRIPTION OF DRAWINGS:

[0019] 1, lifting seat, 2, digital jet printing head, 3, position adjusting mechanism, 4, guide roller, 5, winding roller, 6, fixed seat, 7, sliding seat, 8, sliding drive module, 9, lifting drive module, 10, material band joint sensor, 11, lifting drive cylinder, 12, elastic support assembly, 13, lifting stroke hole, 14, guide column seat, 15, elastic piece, 16, guide sleeve, 17, cap, 18, lower limit position adjusting module, 19, stud, 20, rotary driver, 21, driving wheel, 22, driven wheel, 23, transmission belt. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the utility model is further explained below in conjunction with the embodiment and the drawing, and the content mentioned in the embodiment is not the limitation of the utility model.

[0021] As Figs. 1 to 3The utility model provides a digital shower head lifting device, which comprises a lifting seat 1, a plurality of digital inkjet heads 2 arranged on the lifting seat 1, two position adjustment mechanisms 3 symmetrically arranged at the two ends of the lifting seat 1, a plurality of guide rollers 4 arranged side by side below the bottom surface of the lifting seat 1 and below the digital inkjet heads 2, and a plurality of winding rollers 5 arranged on the feed side of the first guide roller 4. The position adjustment mechanism 3 comprises a fixed seat 6 arranged on one side of the lifting seat 1, a sliding seat 7 slidably connected to the fixed seat 6, a translation driving module 8 arranged on the fixed seat 6 and drivingly connected to the sliding seat 7, and a lifting driving module 9 arranged on the sliding seat 7 and drivingly connected to the lifting seat 1. The translation driving module 8 is used to drive the sliding seat 7 to translate, and the lifting driving module 9 is used to drive the lifting seat 1 to lift. The outer side of the winding roller 5 is provided with a tape sensor 10. The plurality of guide rollers 4 are distributed along the length of the lifting seat 1, and the tape sensor 10 is electrically connected to the lifting driving module 9. The two position adjustment mechanisms 3 work synchronously, and the plurality of guide rollers 4 form an inkjet platform.

[0022] In actual application, after the material tape is wound through the plurality of winding rollers 5 in turn, the material tape moves along the top side of the plurality of guide rollers 4. With the movement of the material tape, the plurality of digital inkjet heads 2 perform digital inkjet printing on the material tape. When the tape sensor 10 detects the tape joint position (the position of the joint of the two material tapes or the joint head of the material tape), the tape sensor 10 feeds back a signal to the lifting driving module 9, so that the lifting driving module 9 drives the lifting seat 1 and the plurality of digital inkjet heads 2 to rise, so that the distance between the digital inkjet heads 2 and the guide rollers 4 is greater than the thickness of the tape joint position, so that the tape joint position can smoothly pass through, and the tape joint position is prevented from rubbing against the digital inkjet heads 2 to wear the digital inkjet heads 2, so as to realize avoidance of the tape joint position. In addition, when it is necessary to thread the material tape, the translation driving module 8 drives the sliding seat 7, the lifting seat 1 and the plurality of digital inkjet heads 2 to horizontally move, so that the lifting seat 1 is away from the guide rollers 4, and the material tape can be replaced or threaded. Of course, since the thicknesses of different material tapes are different, the distance between the digital inkjet heads 2 and the guide rollers 4 can be adjusted by the lifting driving module 9 to satisfy digital inkjet printing on material tapes with different thicknesses. The utility model can realize lifting and horizontal position adjustment of the digital inkjet heads 2, can avoid the joint head of the material tape, can satisfy digital inkjet printing on material tapes with different thicknesses, and is convenient for replacing or threading the material tape.

[0023] In the embodiment, the tape sensor 10 is a color mark electric eye. The color mark electric eye can sense or identify the tape joint position or the mark point of the material tape.

[0024] In the embodiment, the lifting driving module 9 comprises two lifting driving cylinders 11, the cylinder body of the lifting driving cylinder 11 is arranged on the sliding base 7, and the piston rod of the lifting driving cylinder 11 is fixedly connected with the lifting seat 1. In actual application, the two lifting driving cylinders 11 work synchronously to improve the stability of driving the lifting seat 1 to lift.

[0025] In the embodiment, the digital nozzle lifting device further comprises an elastic supporting assembly 12 arranged between the end of the lifting seat 1 and the sliding base 7, which is used for elastically supporting the lifting seat 1. When the lifting seat 1 is in the low position, the elastic supporting assembly 12 supports the lifting seat 1, reduces the load of the lifting driving module 9 supporting the lifting seat 1, and protects the lifting driving module 9.

[0026] In the embodiment, the end side wall of the lifting seat 1 is provided with a lifting stroke hole 13, the elastic supporting assembly 12 comprises a guide column seat 14 arranged on the sliding base 7, an elastic element 15 sleeved on the outer column of the guide column seat 14, a guide sleeve 16 arranged on the end of the lifting seat 1 and slidingly penetrating the guide column, and a cap 17 arranged on the top end of the guide column seat 14, the top end of the column of the guide column seat 14 extends into the lifting stroke hole 13, the cap 17 is located in the lifting stroke hole 13, the bottom end of the elastic element 15 abuts against the seat plate of the guide column seat 14, and the top end of the elastic element 15 is used for abutting against the bottom end surface of the guide sleeve 16; specifically, the elastic element 15 is a spring. When the lifting driving module 9 drives the lifting seat 1 to lift, the guide sleeve 16 on the lifting seat 1 lifts and slides relative to the column of the guide column seat 14, when the lifting seat 1 is in the low position, the guide sleeve 16 on the lifting seat 1 abuts against the top end of the elastic element 15, and the elastic element 15 elastically supports the guide sleeve 16. The cover plate limits the lifting seat 1, avoiding the lifting seat 1 from separating from the guide column seat 14.

[0027] In the embodiment, the end of the lifting seat 1 is provided with a descending limit adjusting module 18, the descending limit end of the descending limit adjusting module 18 extends into the lifting stroke hole 13 and is located above the cap 17. In actual application, according to the material belt with different thickness, the descending limit adjusting module 18 is adjusted in advance to adjust the lowest position of the lifting seat 1.

[0028] In the embodiment, the descending limit adjusting module 18 comprises a stud 19 threadedly connected to the end of the lifting seat 1, a rotary driver 20 arranged at the end of the lifting seat 1, a driving wheel 21 sleeved on the rotary shaft of the rotary driver 20, a plurality of driven wheels 22 rotatably connected to the end of the lifting seat 1, and a transmission belt 23 wound around the driving wheel 21 and the plurality of driven wheels 22. The bottom end of the stud 19 extends into the lifting stroke hole 13, the top end of the stud 19 slidably penetrates the central hole of one of the driven wheels 22, the stud 19 is keyed to the inner wall of the central hole of the driven wheel 22, the bottom end of the stud 19 is used to abut against the top surface of the cap 17, and the stud 19 can be lifted and moved relative to the driven wheel 22. Specifically, the rotary driver 20 can be an electric motor.

[0029] In actual application, the rotary driver 20 drives the driving wheel 21 to rotate, the rotating driving wheel drives the driven wheels 22 to rotate through the transmission belt 23, and the rotating driven wheels 22 drive the stud 19 to rotate. Since the stud 19 is threadedly connected to the lifting seat 1 and is keyed to the driven wheel 22, the stud 19 can be lifted and moved relative to the driven wheel 22. Therefore, the stud 19 can be lifted and moved relative to the lifting seat 1 while the stud 19 is rotating. By adjusting the length of the stud 19 extending into the lifting stroke hole 13, the lowest position to which the lifting seat 1 can be lowered can be adjusted.

[0030] Specifically, the peripheral sidewall of the stud 19 is axially recessed with a key groove, the inner wall of the central hole of the driven wheel 22 is provided with a connecting key, the connecting key extends into the key groove, and the connecting key and the key groove can be lifted and moved relative to the lifting seat 1. This structure design ensures that the driven wheel 22 can drive the stud 19 to rotate, and the stud 19 can be lifted and moved relative to the driven wheel 22.

[0031] All the technical features in the embodiment can be freely combined according to actual needs.

[0032] The above embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other ways. Any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A digital printhead lifting device, characterized in that: The system includes a lifting base (1), multiple digital inkjet heads (2) mounted on the lifting base (1), two position adjustment mechanisms (3) symmetrically arranged at both ends of the lifting base (1), multiple guide rollers (4) rotatably arranged side-by-side below the bottom surface of the lifting base (1) and below the digital inkjet heads (2), and multiple winding rollers (5) rotatably arranged on the feed side of the first guide roller (4). The position adjustment mechanism (3) includes a fixed base (6) arranged outside one side of the lifting base (1) and a sliding connection to... The fixed seat (6) has a slide (7), a translation drive module (8) installed on the fixed seat (6) and driven by the slide (7), and a lifting drive module (9) installed on the slide (7) and driven by the lifting seat (1). The translation drive module (8) is used to drive the slide (7) to translate, and the lifting drive module (9) is used to drive the lifting seat (1) to lift. A belt contact sensor (10) is provided on the outer side of the winding roller (5), and the belt contact sensor (10) is electrically connected to the lifting drive module (9).

2. The digital printhead lifting device according to claim 1, characterized in that: The sensor (10) is a color mark photocell.

3. The digital printhead lifting device according to claim 1, characterized in that: The lifting drive module (9) includes two lifting drive cylinders (11). The cylinder body of the lifting drive cylinder (11) is mounted on the slide (7), and the piston rod of the lifting drive cylinder (11) is fixedly connected to the lifting seat (1).

4. The digital printhead lifting device according to claim 1, characterized in that: The digital printhead lifting device also includes an elastic support component (12) disposed between the end of the lifting seat (1) and the slide (7), the elastic support component (12) being used to provide elastic support for the lifting seat (1).

5. A digital printhead lifting device according to claim 4, characterized in that: The end side wall of the lifting seat (1) is provided with a lifting stroke hole (13). The elastic support assembly (12) includes a guide column seat (14) installed on the slide (7), an elastic element (15) fitted on the outside of the column of the guide column seat (14), a guide sleeve (16) installed on the end of the lifting seat (1) and sliding through the guide column, and a cap (17) installed on the top of the guide column seat (14). The top of the column of the guide column seat (14) extends into the lifting stroke hole (13), and the cap (17) is located in the lifting stroke hole (13). The bottom end of the elastic element (15) abuts against the seat plate of the guide column seat (14), and the top end of the elastic element (15) abuts against the bottom end face of the guide sleeve (16).

6. A digital printhead lifting device according to claim 5, characterized in that: The elastic element (15) is a spring.

7. A digital printhead lifting device according to claim 5, characterized in that: The end of the lifting seat (1) is provided with a lowering limit adjustment module (18), and the lifting limit end of the lowering limit adjustment module (18) extends into the lifting stroke hole (13) and is located above the cap (17).

8. A digital printhead lifting device according to claim 7, characterized in that: The lowering limit adjustment module (18) includes a stud (19) threaded to the end of the lifting seat (1), a rotary driver (20) mounted on the end of the lifting seat (1), a drive wheel (21) fitted on the rotary shaft of the rotary driver (20), several driven wheels (22) rotatably connected to the end of the lifting seat (1), and a transmission belt (23) wound around the drive wheel (21) and several driven wheels (22). The bottom end of the stud (19) extends into the lifting stroke hole (13), and the top end of the stud (19) slides through the center hole of one of the driven wheels (22). The stud (19) is keyed to the inner wall of the center hole of the driven wheel (22). The bottom end of the stud (19) is used to abut against the top surface of the cap (17). The stud (19) can move up and down relative to the driven wheel (22).

9. A digital printhead lifting device according to claim 8, characterized in that: The stud (19) has a keyway recessed in the circumferential sidewall, and a connecting key is provided on the inner wall of the central hole of the driven wheel (22). The connecting key extends into the keyway, and the connecting key and the keyway can slide relative to each other.

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