CN210312666U

CN210312666U - Unwinding device of broad width inkjet printer

Info

Publication number: CN210312666U
Application number: CN201921211378.0U
Authority: CN
Inventors: 高玉宝
Original assignee: Shanghai Bohao Digital Technology Co Ltd
Current assignee: Shanghai Bohao Digital Technology Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-14
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to an unwinding device of broad width air brushing machine belongs to the technical field of air brushing machine, and it includes the frame, install unwinding mechanism in the frame, unwinding mechanism is including rotating side by side and installing first bearing roller and second bearing roller in the frame, first bearing roller with place the unwinding roller that is used for installing the air brushing yardage roll on the second bearing roller, the subaerial adjustment mechanism that all is provided with at unwinding roller both ends, still install on the adjustment mechanism and be used for the drive the driving motor who unwinds the roller, driving motor fixed mounting is in on the adjustment mechanism, install in driving motor's the pivot and be used for the centre gripping the hold assembly of unwinding roller. The utility model discloses have and to carry out the bearing in order to reduce its effect of warping to broad width air brushing cloth.

Description

Unwinding device of broad width inkjet printer

Technical Field

The utility model belongs to the technical field of the technique of inkjet printer and specifically relates to an unwinding device of broad width inkjet printer is related to.

Background

The inkjet printer is a product of a large-scale printer series, and has no printing and high definition of a photo printer, but the definition of the inkjet printer which is proposed at present is greatly improved. The inkjet printer uses solvent type or UV curing type ink, wherein the solvent type ink has strong smell and corrosivity, and the ink permeates into the interior of a printing material through corrosion in the printing process, so that an image is not easy to fade, and the inkjet printer has the characteristics of water resistance, ultraviolet resistance, scratch resistance and the like.

If the chinese patent with the publication number of grant CN204638462U, it discloses a 3D membrane machine for broad building air brushing advertisement, including unwinding device, carry over pinch rolls, air brushing mechanism, spray gun, force pump, control valve, hot seal tectorial membrane structure and coiling mechanism, the unwinding device right side is provided with the carry over pinch rolls, is provided with air brushing mechanism before the carry over pinch rolls, is provided with the spray gun on the air brushing mechanism, and the spray gun passes through the control valve and links to each other with the force pump in the printing ink coating, and the carry over pinch rolls right side is provided with hot seal tectorial membrane structure and coiling mechanism.

The above prior art solutions have the following drawbacks: because the last general coating of air brushing has the PVC layer, therefore the thickness of air brushing is big, the square gram is great, especially to wide width air brushing machine, the width of air brushing is great, consequently with air brushing coiling back on the refill, if directly wear to unreel on the roller, then the air brushing of centre droops easily under the effect of self gravity and takes place to warp, and it warp to carry out the pattern that the air brushing leads to the air brushing to obtain easily on the air brushing after warping, influence the off-the-shelf quality of air brushing, consequently need one kind can carry out the unwinding device in order to reduce its deformation to wide air brushing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wide width air brushing machine's unwinding device, it has can carry out the bearing in order to reduce its effect of warping to wide width air brushing cloth.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides an unwinding device of broad width inkjet printer, includes the frame, install unwinding mechanism in the frame, unwinding mechanism is including rotating side by side and installing first bearing roller and second bearing roller in the frame, first bearing roller with place the unwinding roller that is used for installing the air brushing yardage roll on the second bearing roller, the subaerial adjustment mechanism that all is provided with at unwinding roller both ends, still install on the adjustment mechanism and be used for the drive the driving motor who unreels the roller, driving motor fixed mounting be in on the adjustment mechanism, install in driving motor's the pivot and be used for the centre gripping the clamping part of unwinding roller.

Through adopting above-mentioned technical scheme, will unreel the roller and put on first bearing roller and second bearing roller after unreeling the roller and installing the air brushing yardage roll, and through adjustment mechanism, adjust driving motor's position according to the book footpath of air brushing yardage roll, with convenient centre gripping part to unreeling the roller and carry out the centre gripping, can unreel the operation after the centre gripping is accomplished, owing to there are first bearing roller and second bearing roller to carry out the bearing to the air brushing yardage roll, then even the width of air brushing yardage roll is great, each position of air brushing yardage roll also homoenergetic obtains effectual bearing, the air brushing yardage roll has been reduced and has taken place the deformation and influence the possibility of quality under the effect of air brushing gravity.

The utility model discloses further set up to: adjustment mechanism includes the leveling member, the leveling member is including the platform that slides, the platform fixed mounting that slides is in the subaerial in the frame outside, the groove of sliding has been seted up on the platform that slides, slidable mounting has the sliding block in the groove that slides, install the mount table on the sliding block, the bench that slides still rotates installs the lead screw, the lead screw runs through the mount table and with the mount table passes through threaded connection, the subaerial leveling motor that still installs of platform one side that slides, leveling motor with the lead screw key-type connection, the mount table is kept away from lifting unit is installed to one side in groove that slides.

Through adopting above-mentioned technical scheme, according to the book footpath of air brushing cloth book, adjust driving motor's vertical height through elevating part, start horizontal accommodate motor afterwards, horizontal accommodate motor passes through the lead screw and rotates the elevating part that drives and lead screw threaded connection and slide along the sliding groove, and horizontal position when driving motor adjusts the back and carries out the centre gripping through clamping part to unreeling the roller, can unreel the operation.

The utility model discloses further set up to: the lifting component comprises a lifting rod, the lifting rod is installed on one side, away from the mounting table, of the sliding table, the lifting rod is far away from one end, away from the sliding block, of the sliding block, the lifting table is installed in a sliding mode, and the driving motor is fixedly installed on the lifting table.

By adopting the technical scheme, the roll diameter of the spray painting cloth roll can be gradually reduced along with the unreeling, and the corresponding unreeling roller can vertically move downwards due to the reduction of the diameter of the spray painting cloth roll so as to keep the spray painting cloth roll in contact with the first bearing roller and the second bearing roller; and install driving motor on the elevating platform that can slide and go up and down, when the book footpath of spray painting yardage roll diminishes, driving motor descends thereupon can, and driving motor's weight still can make spray painting yardage roll and first bearing roller and second bearing roller contact inseparabler.

The utility model discloses further set up to: positioning bolts are arranged on the peripheral side wall of the lifting platform through threads and are tightly abutted to the lifting rod, and a handle is arranged at one end, far away from the lifting rod, of each positioning bolt.

By adopting the technical scheme, when the driving motor is not needed, the lifting platform can be pulled, and after the lifting platform is lifted, the lifting platform is fixed on the lifting rod by screwing the positioning bolt; the handle reduces the force required for screwing the positioning bolt by lengthening the force arm, and reduces the labor intensity of workers.

The utility model discloses further set up to: the clamping component comprises a mounting plate fixedly mounted on a rotating shaft of the driving motor, one end, far away from the driving motor, of the mounting plate is provided with a first mounting ring and a second mounting ring which are concentric, the diameter of the first mounting ring is smaller than that of the second mounting ring, a plurality of rotating rods are circumferentially mounted on the circumferential side wall of the first mounting ring, the rotating rods penetrate through the second mounting ring and are rotatably connected with the second mounting ring, and a first bevel gear is mounted on each rotating rod between the first mounting ring and the second mounting ring; a baffle is arranged at one end of the first mounting ring and the second mounting ring far away from the driving motor, a second bevel gear is rotatably sleeved on the first mounting ring and meshed with the first bevel gear, a planar thread is arranged at one side of the second bevel gear far away from the driving motor, a plurality of first sliding holes are circumferentially arranged on the baffle, a second sliding hole communicated with the first sliding holes is arranged on the circumferential side wall of the second mounting ring, a limiting strip is arranged on the inner side wall of the second sliding hole, one end of the limiting strip close to the first mounting ring is connected with the first mounting ring, a clamping block is arranged in the first sliding hole, a limiting groove is arranged on the clamping block along the length direction and is connected with the limiting strip in a sliding manner, and a rack is arranged at one side of the clamping block close to the second bevel gear, the rack is meshed with the plane thread, and a clamping block is installed on one side, far away from the second bevel gear, of the clamping block.

Through adopting above-mentioned technical scheme, when needs carry out the centre gripping to unreeling the roller, will unreel the roller and put into the passageway of first collar, rotate first bevel gear afterwards, first bevel gear drives the second bevel gear rotation of meshing with it, second bevel gear drives plane screw thread and rotates, with plane screw thread engaged's rack along plane screw thread precession, then the fixture block slides towards the direction of rack precession under the drive of rack, at the in-process that slides of fixture block, spacing strip and spacing groove cooperation, it slides along second sliding hole to prescribe a limit to the fixture block, finally the fixture block drives the grip block and supports tightly in order to unreel the roller centre gripping in the passageway of first collar with unreeling the roller.

The utility model discloses further set up to: the positioning blocks are mounted at two ends of the unwinding roller, the positioning grooves are circumferentially formed in the circumferential side walls of the positioning blocks, and the clamping blocks are connected with the positioning grooves in a sliding mode.

Through adopting above-mentioned technical scheme, when the grip block carries out the centre gripping to unreeling the roller, the grip block card has reduced the grip block and has unreeled the roller and take place the possibility that relative rotation influences unreeling quality with unreeling.

The utility model discloses further set up to: and a cooling fan is further installed on one side of the driving motor, which is far away from the unwinding roller.

By adopting the technical scheme, the driving motor can generate heat when working, the driving motor needs to be cooled, and the added cooling fan improves the heat dissipation capacity of the driving motor.

The utility model discloses further set up to: the unwinding roller is an air expansion shaft, and a storage ring for placing an inflating nozzle is further arranged on the rack on one side of the unwinding roller.

By adopting the technical scheme, the air expansion shaft is convenient to use, the spray painting cloth roll can be stably installed on the air expansion shaft only by filling high-pressure air into the air expansion shaft through the inflating nozzle, the common inflating nozzle is placed at will and is easily rolled by the spray painting machine to cause production safety accidents, the placing position of the inflating nozzle can be limited by the added object placing ring, the placing and placing are convenient, and the possibility of production safety accidents caused by the messy placing of the inflating nozzle is reduced.

The utility model discloses further set up to: the unwinding roller is far away from the feeding end side still install the installation pole in the frame, the installation pole is kept away from the one end of frame is rotated and is installed the roller that destatics.

By adopting the technical scheme, the spray painting cloth roll is easy to generate static electricity, the static electricity not only has potential safety hazard, but also changes the surface tension of the spray painting cloth roll, so that the adhesive force between the spray painting cloth roll and the coating is changed, and the spray painting quality is influenced; the added static removing roller can reduce static on the spray painting cloth roll and can adjust the tension of the spray painting cloth roll by increasing or decreasing the weight of the static removing roller.

To sum up, the utility model discloses a beneficial technological effect does:

1. the first carrying roller and the second carrying roller are arranged to carry out bearing on the unwinding roller, the driving motor drives the unwinding roller through the adjusting mechanism and can move along with the unwinding roller, and all parts of the spray painting cloth roll can be effectively supported, so that the possibility that the spray painting quality is influenced due to the deformation of the spray painting cloth roll under the action of gravity is reduced;

2. the driving motors can move in the horizontal and vertical directions through the horizontal adjusting part and the lifting part, so that the convenience in mounting the unwinding roller is improved, and the unwinding roller is pressed on the two bearing rollers through the weight average of the two driving motors;

3. by arranging the clamping component, the unwinding roller can be conveniently clamped, and the possibility of relative rotation between the unwinding roller and the clamping component is reduced;

4. the cooling fan is additionally arranged on the driving motor, so that the heat dissipation performance of the driving motor is improved;

5. by installing the static removing roller, not only the static on the spray painting cloth roll is reduced, but also the tension of the spray painting cloth roll can be controlled through the static removing roller.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the leveling member and the elevating member of the present invention;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is an exploded view of the clamping member of the present invention;

fig. 5 is a schematic structural diagram of the planar screw thread, the first sliding hole and the second sliding hole of the present invention.

In the figure, 1, a frame; 11. a placement ring; 12. mounting a rod; 13. a static electricity removing roller; 2. an unwinding mechanism; 21. a first carrier roller; 22. a second carrier roller; 23. unwinding rollers; 24. a drive motor; 25. a cooling fan; 3. an adjustment mechanism; 4. a horizontal adjustment member; 41. a sliding table; 42. a sliding groove; 43. a sliding block; 44. an installation table; 45. a screw rod; 46. a horizontal adjustment motor; 5. a lifting member; 51. a lifting rod; 52. a lifting platform; 53. positioning the bolt; 54. a handle; 6. a clamping member; 61. mounting a plate; 62. a first mounting ring; 63. a second mounting ring; 64. a rotating rod; 65. a first bevel gear; 66. a second bevel gear; 67. a planar thread; 7. a baffle plate; 71. a through hole; 72. a first sliding hole; 73. a second sliding hole; 74. a limiting strip; 75. a clamping block; 76. a limiting groove; 77. a rack; 78. a clamping block; 8. positioning blocks; 81. and (6) positioning a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses an unwinding device of broad width inkjet printer, including frame 1, install unwinding mechanism 2 on the frame 1. The unwinding mechanism 2 comprises a first bearing roller 21 and a second bearing roller 22 which are parallelly and parallelly installed on the frame 1, the first bearing roller 21 and the second bearing roller 22 can rotate, and the first bearing roller 21 and the second bearing roller 22 are not in contact with each other. Unwinding rollers 23 for mounting inkjet cloth rolls are arranged on the first bearing roller 21 and the second bearing roller 22. The unwinding roller 23 is an air expansion shaft, and the outer side wall of the frame 1 on one side of the unwinding roller 23 is further provided with a storage ring 11 for placing an inflating nozzle.

The inner wall of the frame 1, which is far away from the feeding end side of the unwinding roller 23, is rotatably provided with an installation rod 12, and one end, which is far away from the frame 1, of the installation rod 12 is rotatably provided with a static removing roller 13.

As shown in fig. 1 and 2, the adjusting mechanisms 3 are mounted on the ground at both ends of the unwinding roller 23, and the adjusting mechanisms 3 include horizontal adjusting members 4. The horizontal adjusting component 4 comprises a sliding table 41 fixedly arranged on the ground outside the frame 1, two mutually parallel sliding grooves 42 are arranged on the sliding table 41, and the sliding grooves 42 are parallel to the unwinding roller 23; the two sliding grooves 42 are both provided with sliding blocks 43 in a sliding way, and the sliding blocks 43 are provided with mounting platforms 44. The sliding table 41 is further rotatably provided with a screw rod 45, the screw rod 45 penetrates through the mounting table 44 and is in threaded connection with the mounting table 44, a horizontal adjusting motor 46 is further mounted on the ground in the rack 1, and the horizontal adjusting motor 46 is in key connection with the screw rod 45.

The mounting table 44 on the side far away from the sliding block 43 is also provided with a lifting component 5, the lifting component 5 comprises four mutually parallel lifting rods 51, and the lifting rods 51 are vertically arranged on the mounting table 44; a lifting platform 52 is slidably mounted on a lifting rod 51 at an end remote from the mounting platform 44.

As shown in fig. 2 and 3, a positioning bolt 53 is installed on the peripheral side wall of the lifting platform 52 through a thread, and the positioning bolt 53 penetrates through the lifting platform 52 and is tightly pressed against the lifting rod 51; the end of the positioning bolt 53 remote from the lifting rod 51 is provided with a handle 54.

The lifting platform 52 at the side far away from the mounting platform 44 is fixedly provided with the driving motor 24 for driving the unwinding roller 23 to unwind, one driving motor 24 of the two driving motors 24 is in an energized state, and the other driving motor 24 is in a de-energized state. A cooling fan 25 is further installed on one side of the driving motor 24 far away from the unwinding roller 23, and a clamping component 6 for clamping the unwinding roller 23 is installed on a rotating shaft of the driving motor 24.

As shown in fig. 4 and 5, the clamping member 6 includes a cylindrical mounting plate 61 fixedly mounted on the rotating shaft of the driving motor 24, a concentric first mounting ring 62 and a concentric second mounting ring 63 are mounted on the mounting plate 61 far from the driving motor 24, the diameter of the first mounting ring 62 is smaller than that of the second mounting ring 63, the first mounting ring 62 is located in the inner cavity of the second mounting ring 63, and the axes of the first mounting ring 62 and the second mounting ring 63 are coincident with the axis of the mounting plate 61.

Three cylindrical rotating rods 64 are circumferentially and equidistantly rotatably mounted on the peripheral side wall of the first mounting ring 62, and the axis of the first mounting ring 62 passes through the intersection points of the axis extension lines of the three rotating rods 64. The three rotating rods 64 penetrate through the second mounting ring 63 and are rotatably connected with the second mounting ring 63. A first bevel gear 65 is fixedly mounted on the rotating rod 64 between the first mounting ring 62 and the second mounting ring 63. A second bevel gear 66 is further rotatably sleeved on the first mounting ring 62 on the side far away from the mounting plate 61, the second bevel gear 66 is positioned in a channel enclosed by the first mounting ring 62 and the second mounting ring 63, and the second bevel gear 66 is meshed with the first bevel gear 65. The second bevel gear 66 on the side remote from the mounting plate 61 is provided with a flat thread 67, and the flat thread 67 is screwed from the side close to the second mounting ring 63 to the side close to the first mounting ring 62.

The first mounting ring 62 and the second mounting ring 63 far away from the mounting plate 61 are fixedly provided with a cylindrical baffle 7 for covering a channel enclosed by the first mounting ring 62 and the second mounting ring 63, and the baffle 7 is provided with a through hole 71 for the unwinding roller 23 to pass through. Three first sliding holes 72 are circumferentially formed in the baffle 7, and the length direction of the first sliding holes 72 coincides with the axis of the rotating rod 64. The peripheral side walls of the first mounting ring 62 and the second mounting ring 63 are provided with a second sliding hole 73 communicated with the first sliding hole 72, and the second sliding hole 73 is communicated with the inner cavity of the first mounting ring 62. Two limiting strips 74 which are parallel to each other are fixedly mounted on the first mounting ring 62 and the second mounting ring 63 in the second sliding hole 73, and the length direction of the limiting strips 74 is perpendicular to the axis of the first mounting ring 62. A clamping block 75 is slidably mounted in the first sliding hole 72 and the second sliding hole 73, a limiting groove 76 is formed in each of two sides of the clamping block 75 along the length direction, and the limiting groove 76 is slidably connected with the limiting strip 74. The latch 75 near the second bevel gear 66 is also provided with a rack 77, and the rack 77 is engaged with the plane thread 67. The latch block 75 on the side away from the second bevel gear 66 is also mounted with a holding block 78. The two ends of the unwinding roller 23 are provided with positioning blocks 8, the circumferential side wall of each positioning block 8 is provided with three positioning grooves 81 in the circumferential direction, and the positioning grooves 81 are connected with the clamping blocks 78 in a sliding mode.

The implementation principle of the embodiment is as follows:

sleeving the spray painting cloth roll on an unwinding roller 23, and placing the unwinding roller 23 provided with the spray painting cloth roll on a first bearing roller 21 and a second bearing roller 22; because the unwinding roller 23 is an inflatable shaft, the inflating nozzle is taken down from the article placing ring 11, high-pressure air is filled into the inflatable shaft, and then the inflating nozzle is placed back on the article placing ring 11.

Depending on the position of the unwinding roller 23, the elevating table 52 is pulled so that the axis of the drive motor 24 coincides with the axis of the unwinding roller 23. And then starting the horizontal adjusting motor 46, wherein the horizontal adjusting motor 46 drives the lifting component 5 in threaded connection with the screw rod 45 to slide along the sliding groove 42 through the rotation of the screw rod 45, and finally the unreeling roller 23 penetrates into the inner cavity of the first mounting ring 62.

After the unwinding roller 23 penetrates into the first mounting ring 62, the first bevel gear 65 is rotated, the first bevel gear 65 drives the second bevel gear 66 engaged therewith to rotate, the second bevel gear 66 drives the planar thread 67 to rotate, the rack 77 engaged with the planar thread 67 is screwed in along the planar thread 67, the fixture block 75 is driven by the rack 77 to slide in the screwing direction of the rack 77, in the sliding process of the fixture block 75, the limiting strip 74 is matched with the limiting groove 76 to limit the fixture block 75 to slide along the second sliding hole 73, and finally the fixture block 75 drives the clamping block 78 to abut against the unwinding roller 23 so as to clamp the unwinding roller 23 in the channel of the first mounting ring 62.

In the process, the positioning block 8 is clamped in the positioning groove 81, so that the possibility that the unreeling quality is influenced due to the fact that the clamping block 78 and the unreeling roller 23 rotate relatively is reduced.

In the process of unreeling the inkjet printing cloth roll, the roll diameter of the inkjet printing cloth roll is gradually reduced along with the unreeling, and the corresponding unreeling roller 23 vertically moves downwards due to the reduction of the diameter of the inkjet printing cloth roll so as to keep the inkjet printing cloth roll in contact with the first bearing roller 21 and the second bearing roller 22; the driving motor 24 is installed on the lifting table 52 which can be lifted and lowered in a sliding manner, when the roll diameter of the spray painting cloth roll is reduced, the driving motor 24 is lowered, and the spray painting cloth roll is in closer contact with the first bearing roller 21 and the second bearing roller 22 due to the weight of the driving motor 24.

In the process of unreeling the spray painting cloth roll, the static removing roller 13 is put down to be in contact with the spray painting cloth, so that static on the spray painting cloth roll can be reduced, and the tension of the spray painting cloth roll can be adjusted by increasing or decreasing the weight of the static removing roller 13. The cooling fan 25 removes heat generated by the driving motor 24 by blowing air flow, thereby improving heat dissipation capability of the driving motor 24.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an unwinding device of broad width inkjet printer, includes frame (1), its characterized in that: install unwinding mechanism (2) in frame (1), unwinding mechanism (2) is including rotating side by side and installing first bearing roller (21) and second bearing roller (22) in frame (1), first bearing roller (21) with place on second bearing roller (22) and be used for installing unreeling roller (23) that the air brushing cloth was rolled up, it all is provided with adjustment mechanism (3) all to unreel subaerial at roller (23) both ends, still install on adjustment mechanism (3) and be used for the drive unreel driving motor (24) of roller (23), driving motor (24) fixed mounting be in on adjustment mechanism (3), install in the pivot of driving motor (24) and be used for the centre gripping unreel clamping part (6) of roller (23).

2. The unwinding device of the wide inkjet printer according to claim 1, wherein: the adjusting mechanism (3) comprises a horizontal adjusting component (4), the horizontal adjusting component (4) comprises a sliding table (41), the sliding table (41) is fixedly arranged on the ground outside the frame (1), a sliding groove (42) is arranged on the sliding table (41), a sliding block (43) is arranged in the sliding groove (42) in a sliding way, an installation platform (44) is installed on the sliding block (43), a screw rod (45) is also rotatably installed on the sliding platform (41), the screw rod (45) penetrates through the mounting table (44) and is connected with the mounting table (44) through threads, a horizontal adjusting motor (46) is also arranged on the ground at one side of the sliding platform (41), horizontal adjustment motor (46) with lead screw (45) key-type connection, mount table (44) are kept away from lifting unit (5) are installed to one side in groove (42) that slides.

3. The unwinding device of the wide inkjet printer according to claim 2, wherein: lifting unit (5) include lifter (51), lifter (51) are installed mount table (44) are kept away from on one side of platform (41) slides, lifter (51) are kept away from the one end slidable mounting of sliding block (43) has lifter (52), fixed mounting has on lifter (52) driving motor (24).

4. The unwinding device of the wide inkjet printer according to claim 3, wherein: positioning bolts (53) are installed on the peripheral side wall of the lifting platform (52) through threads, the positioning bolts (53) are tightly abutted to the lifting rod (51), and a handle (54) is arranged at one end, far away from the lifting rod (51), of each positioning bolt (53).

5. The unwinding device of the wide inkjet printer according to claim 1, wherein: the clamping component (6) comprises a mounting plate (61) fixedly mounted on a rotating shaft of the driving motor (24), one end, far away from the driving motor (24), of the mounting plate (61) is provided with a first mounting ring (62) and a second mounting ring (63) which are concentric, the diameter of the first mounting ring (62) is smaller than that of the second mounting ring (63), a plurality of rotating rods (64) are circumferentially mounted on the circumferential side wall of the first mounting ring (62), the rotating rods (64) penetrate through the second mounting ring (63) and are in rotating connection with the second mounting ring (63), and a first bevel gear (65) is mounted on the rotating rods (64) between the first mounting ring (62) and the second mounting ring (63); one ends, far away from the driving motor (24), of the first mounting ring (62) and the second mounting ring (63) are provided with a baffle (7), the first mounting ring (62) is rotatably sleeved with a second bevel gear (66), the second bevel gear (66) is meshed with the first bevel gear (65), one side, far away from the driving motor (24), of the second bevel gear (66) is provided with a planar thread (67), the baffle (7) is circumferentially provided with a plurality of first sliding holes (72), the peripheral side wall of the second mounting ring (63) is provided with a second sliding hole (73) communicated with the first sliding hole (72), the inner side wall of the second sliding hole (73) is provided with a limiting strip (74), one end, close to the first mounting ring (62), of the limiting strip (74) is connected with the first mounting ring (62), and a clamping block (75) is arranged in the first sliding hole (72), a limiting groove (76) is formed in the clamping block (75) along the length direction, the limiting groove (76) is in sliding connection with the limiting strip (74), a rack (77) is arranged on one side, close to the second bevel gear (66), of the clamping block (75), the rack (77) is meshed with the plane threads (67), and a clamping block (78) is installed on one side, far away from the second bevel gear (66), of the clamping block (75).

6. The unwinding device of the wide inkjet printer according to claim 5, wherein: locating piece (8) are all installed at the both ends of unreeling roller (23), constant head tank (81) have been seted up to circumference on the week lateral wall of locating piece (8), grip block (78) with constant head tank (81) sliding connection.

7. The unwinding device of the wide inkjet printer according to claim 1, wherein: and a cooling fan (25) is further installed on one side, away from the unwinding roller (23), of the driving motor (24).

8. The unwinding device of the wide inkjet printer according to claim 1, wherein: the unwinding roller (23) is an air expansion shaft, and a storage ring (11) used for placing an inflating nozzle is further arranged on the rack (1) on one side of the unwinding roller (23).

9. The unwinding device of the wide inkjet printer according to claim 1, wherein: unreel roller (23) and keep away from supplied material end one side still install installation pole (12) on frame (1), installation pole (12) are kept away from the one end of frame (1) is rotated and is installed destaticizing roller (13).