CN217415255U - Printing equipment suitable for long coil stock - Google Patents

Abstract

The application relates to printing equipment suitable for long coiled materials, which comprises a bearing table and a transmission mechanism, wherein the transmission mechanism is arranged on an installation plate; the bearing table is provided with a feeding end and a discharging end, the bearing table is provided with two groups of mounting plates, the two groups of mounting plates are respectively positioned in the middle of the bearing table, and a gap is formed between the two groups of mounting plates; the transmission mechanism comprises a material placing component, a pressing component, a follower roller and a material collecting roll; the material placing assembly and the follower roller are positioned at the material feeding end, the material receiving roll is positioned at the material discharging end, and the follower roller and the material receiving roll are rotatably connected with the mounting plate; the pressing assembly comprises a pressing rear roller and a pressing front roller, the pressing rear roller is located at the feeding end, the pressing front roller is located at the discharging end, and the pressing rear roller and the pressing front roller are higher than the end face, far away from the ground, of the bearing platform and form a first pressing channel for long coil to pass through. This application has the promotion pressfitting effect to improve the effect of the printing quality of long coil stock.

Description

Printing equipment suitable for long coil stock

Technical Field

The application relates to the technical field of printing, in particular to a printing device suitable for long roll materials.

Background

A printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. The basic operating principle of an ink jet printer is to generate small ink droplets and then to direct fine black or color ink droplets to a set position by an ink jet head to form an image or text. The smaller the ink drop, the sharper the printed picture.

The ink-jet printer occupies the vast middle and low-end market due to good printing effect and lower price, has flexible processing capacity, can print on common media such as envelopes and letter paper and can also print on special media such as various films, photo paper, compact disc covers and roll paper in the aspect of selection of printing media, and the printing media are mostly single materials after being cut. Among the relevant technical means, the processing of ink jet printer to long coil stock material adds blowing roller and receipts material roller respectively in printing apparatus both sides, and the blowing of driving piece blowing roller, long coil stock get into print area after accomodate the long coil stock of accomplishing the printing through receiving the material roller, and this in-process, the phenomenon of print medium swell or fold appears easily at the printing in-process in long coil stock.

Aiming at the related technical means, in the printing process, the defects of poor feeding and pressing effect and poor printing quality exist due to overlong printing length of the long roll material.

SUMMERY OF THE UTILITY MODEL

In order to improve long coil stock material and have the feeding pressfitting effect not good enough at the printing in-process, print the defect that the quality is poor, this application provides a printing apparatus suitable for long coil stock.

The application provides a printing apparatus suitable for long coil stock adopts following technical scheme:

a printing apparatus for long webs of material comprising,

the bearing platform is provided with a feeding end and a discharging end and is provided with an installation plate;

the printing mechanism is arranged on the bearing table, and a printing channel for the long roll to pass through is formed between the printing mechanism and the bearing table;

the transmission mechanism is arranged on the mounting plate; the conveying mechanism comprises a material placing assembly, a pressing assembly and a material collecting roll, the material placing assembly is located at the material inlet end, the material collecting roll is located at the material outlet end, and the material collecting roll is rotatably connected with the mounting plate; the pressing assembly comprises a pressing rear roller and a pressing front roller, the pressing rear roller is located at the feeding end, the pressing front roller is located at the discharging end, and first pressing channels for leveling long rolls are formed among the pressing rear roller, the pressing front roller and the bearing table.

By adopting the technical scheme, the long coil on the material placing assembly enters the first material pressing channel from the feeding end, the long coil is curled and pressed due to storage by the material pressing rear roller, so that the long coil is flat, the long coil passes through the material discharging end and enters the material pressing front roller, the printed long coil is pressed again by the material pressing front roller, the material pressing front roller and the material pressing rear roller are matched with each other, the curling of the long coil in the printing process is reduced, the printed long coil is wound by the material receiving roller, and the subsequent storage and transportation are facilitated; compared with the prior art, the pressfitting is all carried out to long coil stock around printing to this application for long coil stock has reduced the phenomenon of bulging or fold at the printing in-process, thereby improves the printing quality of long coil stock.

Optionally, the pressing assembly further includes a middle pressing roller mounted on the mounting plate, and the middle pressing roller is located between the front pressing roller and the rear pressing roller; the material pressing middle roller is parallel to the material pressing front roller and the material pressing rear roller respectively, and a second material pressing channel for secondary leveling of long coiled materials is formed between the material pressing middle roller and the bearing platform.

By adopting the technical scheme, the long coil stock enters the second material pressing channel after being subjected to pressing treatment of the material pressing rear roller, the long coil stock is in contact with the material pressing middle roller to generate friction so as to drive the material pressing middle roller to rotate, the material pressing middle roller performs secondary pressing on the long coil stock, the bulging phenomenon at the middle part of the long coil stock in the printing and feeding process is reduced, the pressing effect is further improved, and the printing quality of the long coil stock is improved.

Optionally, the mounting panel is provided with the compression roller guide block, the compression roller guide block is provided with and is used for the restriction press the spacing groove of roller orientation long coil stock pay-off direction motion in the material with be used for the bearing the standing groove of roller in the material, the standing groove with the spacing groove intercommunication, just be formed with the material loading space that is used for the free passing through of long coil stock between the low level end of standing groove.

By adopting the technical scheme, in the printing work, two ends of the material pressing middle roller are respectively positioned in the limiting grooves, and the long coil enters the printing channel through the second material pressing channel to be printed; when the long coil needs to be replaced, the pressing middle roller is adjusted from the limiting groove to the placing groove, and the pressing middle roller passes through a feeding space formed between the pressing middle roller and the bearing platform, so that the second pressing channel is enlarged, and the long coil is convenient to replace; after the long coil stock is replaced, the pressing middle roller is adjusted from the placing groove to the limiting groove, so that the pressing middle roller continuously presses the long coil stock.

Optionally, the pressing component further includes a material pressing sheet, the material pressing sheet is located between the printing mechanism and the bearing table, the printing mechanism includes a portal frame, the portal frame is consistent with the central axis direction of the material pressing rear roller, the material pressing sheet is connected with the portal frame, and a pressing passage through which long rolls pass is formed between the material pressing sheet and the bearing table.

By adopting the technical scheme, the long coil enters the pressing channel after being pressed for the second time by the pressing middle roller, the pressing plate presses the long coil for the third time, so that the phenomena of edge warping and edge curling of the long coil in the printing process are reduced, and the positions of the two sides of the long coil are leveled, so that the pressing effect of the long coil is enhanced, and the printing quality of the long coil is improved; on the other hand, the subsequent winding work of the long coil materials is smoother.

Optionally, the material pressing sheet includes a pressing part for pressing the long roll material, and a length direction of the pressing part is consistent with a feeding direction of the long roll material; the pressing part) is provided with a guide inclined plane at one end close to the feeding end, and the guide inclined plane and the end surface of the bearing table far away from the ground form an opening gradually narrowed along the feeding direction of the long coil.

Through adopting above-mentioned technical scheme, long coil stock is after the roller secondary pressfitting in pressing the material, and then gets into the pressfitting passageway through the opening that forms between the terminal surface that direction inclined plane and plummer kept away from ground, and the opening of pressfitting passageway has been enlarged on the direction inclined plane for long coil stock is changeed and is got into the pressfitting passageway, has effectively reduced long coil stock and has got into the possibility that the pressfitting passageway produced the fold, has guaranteed the pressfitting effect of long coil stock.

Optionally, it includes that bearing frame, blowing material roll, is used for driving to put the material subassembly the pivoted drive roller is rolled up to the blowing and for the drive roller provides drive power's second driving piece, the bearing frame with mounting panel fixed connection, the blowing material roll install in on the bearing frame, the drive roller with the mounting panel rotates to be connected.

Through adopting above-mentioned technical scheme, the second driving piece drives the drive roller and rotates, and then the outermost friction of drive roller and long coil stock. Thereby drive the blowing and roll up and rotate for long coil stock keeps the at the uniform velocity state of walking about the material, realizes long coil stock's even feed effect, receives the material to roll up and the blowing is rolled up and is cooperated each other and make long coil stock keep certain tensile force.

Optionally, put the material subassembly still including being used for cooperating the drive roller bears the weight of the bearing roller of roll of unreeling, bearing the weight of the roller with the mounting panel is rotated and is connected, the central axis that bears the weight of the roller with the central axis of drive roller is parallel and be located same horizontal plane.

By adopting the technical scheme, the driving roller and the bearing roller form the discharging roll dragging for placing the whole roll of the long roll, the driving roller drives the discharging roll to move, so that the discharging roll and the bearing roller rub to drive the bearing roller to move, and the driving roller is matched with the bearing roller, so that on one hand, the power is provided for feeding the long roll, and the feeding operation is completed; on the other hand, the damage of the long coil caused by the pulling force of the receiving coil to feed is avoided.

Optionally, the transmission device is still including the tensioning subassembly that is used for strengthening long coil stock tensile force, the feed end with the discharge end is all installed the tensioning subassembly, the tensioning subassembly includes tensioning roller, follower roll and tensioning sliding frame, the tensioning roller with tensioning sliding frame rotates to be connected, the follower roll with the mounting panel rotates to be connected.

Through adopting above-mentioned technical scheme, long coil stock is worn out from the tensioning roller below, the tensioning roller forms the difference in height with the follower roll, the position that the tensioning roller is located the mounting groove according to the tensile force adjustment tensioning roller between the coil of blowing material and the receipts material book, gravity because of the tensioning roller provides the tensile force for long coil stock, subduct the coil of blowing material and receive the speed difference between the material book, make long coil stock guarantee the tensioning state all the time in transmission course, effectively reduced long coil stock because of relaxing the long coil stock produces the possibility of fold in transmission course, improve the printing quality of long coil stock.

Optionally, the tensioning assembly further comprises a synchronous gear, and the synchronous gear is located at two ends of the tensioning roller; the tensioning slides and puts up and be provided with and be used for holding the mounting groove of tensioning roller and be used for the cooperation the rack of synchronizing gear, the rack with tensioning slides and puts up fixed connection, synchronizing gear with the rack toothing.

Through adopting above-mentioned technical scheme for when the tensioning roller was located the position of mounting groove according to the tensioning force adjustment tensioning roller between the material roll of blowing material and the receipts material roll, the central axis that keeps the central axis of tensioning roller and material roll, the pressfitting back roller keeps parallel, rectifies the feeding of long coil stock when guaranteeing the tensioning force of long coil stock, reduces the possibility that long coil stock produced fold and swell.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the long coil penetrates through the follower roller and enters the first pressing channel from the feeding end, the long coil is pressed for the first time by the roller after pressing to be smooth, the long coil is pressed for the second time by the roller in pressing, the long coil after the second time pressing enters the pressing channel, the long coil is pressed for the third time by the pressing plate, and the pressed long coil is placed on the bearing table and printed through the printing channel; compared with the prior art, diversified pressfitting is carried out to long coil stock to this application for long coil stock has reduced the bulge or has appeared sticking up the phenomenon of limit and turn-up printing the in-process, promotes the pressfitting effect, thereby improves the printing quality of long coil stock.

2. The compression roller guide block is additionally arranged, so that long coil materials are required to be replaced, the compression roller is adjusted to press the materials, the middle roller passes through the feeding space formed between the middle roller and the bearing platform, the second material pressing channel is enlarged, and replacement of the long coil materials is facilitated.

3. The driving roller and the bearing roller form a discharging roll dragging device for placing the whole roll of the long roll, the driving roller rubs with the outermost layer of the long roll to drive the discharging roll to rotate, the discharging roll rubs with the bearing roller to drive the bearing roller to move, and the driving roller is matched with the bearing roller, so that on one hand, assistance is provided for feeding of the long roll, and feeding operation is completed; on the other hand, the damage of long coil materials caused by the fact that the coil materials are fed by the tension of the coil materials is avoided.

4. The tensioning roller and the follower roller form a height difference, the position of the tensioning roller in the mounting groove is adjusted according to the tensioning force between the material discharging roll and the material receiving roll, and the speed difference between the material discharging roll and the material receiving roll is reduced; the central axis that synchronous gear kept the tensioning roller keeps parallel with the central axis of roll up, the pressfitting back roller, rectifies the feeding of long coil stock when guaranteeing the tensile force of long coil stock, has effectively reduced long coil stock because of the lax possibility that leads to long coil stock production fold in transmission process.

Drawings

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

Fig. 2 is a schematic view of the overall structure from another angle in the present application.

Fig. 3 is a partially enlarged view highlighting a portion a in fig. 1.

FIG. 4 is a schematic view of a portion of the material placement assembly and the tensioning assembly.

Description of the reference numerals:

1. a bearing platform; 11. a feeding end; 12. a discharge end; 13. mounting a plate; 131. a compression roller guide block; 1311. a limiting groove; 1312. a placement groove; 132. a lifting adjusting member; 2. a printing mechanism; 21. a gantry; 211. a cross bar; 3. a transport mechanism; 31. a material placing component; 311. a bearing frame; 3111. a cross beam; 3112. a column; 3113. a bearing block; 312. placing a material roll; 313. a drive roller; 3131. a driven gear; 314. a carrier roller; 315. a second driving member; 3151. a drive gear; 32. pressing the components; 321. pressing a material and then rolling; 322. a material pressing middle roller; 3221. a second pressing channel; 323. a material pressing front roller; 324. pressing sheets; 3241. pressing the channel; 3242. a fixed part; 3243. a waist-shaped hole; 3244. a press-fit portion; 3245. a guide slope; 34. a first pressing channel; 35. a tension assembly; 351. a tension roller; 352. a synchronizing gear; 353. a follower roller; 354. tensioning the sliding frame; 3541. installing a groove; 3542. a rack; 36. a first driving member; 37. collecting a material roll; 4. a print channel.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses printing equipment suitable for long coil stock.

Referring to fig. 1 and 2, a printing apparatus for long rolls includes a carrier 1 for providing an installation base, a printing mechanism 2 for printing the long rolls, and a transport mechanism 3 for transporting the long rolls; the printing mechanism 2 is arranged on the bearing platform 1, and a printing channel 4 which is used for printing the long roll and passes through is formed between the printing mechanism 2 and the bearing platform 1.

Referring to fig. 1, the carrier table 1 is a rectangular parallelepiped having a pair of long side walls parallel to each other and a pair of short side walls parallel to each other, and the carrier table 1 has a feed end 11 and a discharge end 12. In this embodiment, the feeding end 11 and the discharging end 12 are respectively located at two sides of the symmetry axis of the bearing table 1 along the length direction. The plummer 1 is provided with mounting panel 13, and mounting panel 13 is flat cubic, and mounting panel 13 is provided with two sets ofly, and two sets of mounting panels 13 are located plummer 1 middle part position respectively and have the distance between the two, and two sets of mounting panels 13 are the symmetry setting along the symmetry axis both sides of plummer 1 width direction.

The printing mechanism 2 comprises a portal frame 21 and a printing nozzle for jetting ink drops, and the long edge of the portal frame 21 is consistent with the length direction of the bearing table 1 and is parallel to the symmetry axis of the bearing table 1 along the length direction; the gantry 21 has a cross bar 211, and the print head is mounted on the cross bar 211 and slidably connected with the cross bar 211 to adjust a printing range of the print head.

Referring to fig. 1 and 2, the conveying mechanism 3 includes a material placing assembly 31 for placing and feeding materials, a pressing assembly 32 for pressing long rolls of materials, a tensioning assembly 35 for providing tensioning force, a material receiving roll 37, and a first driving member 36 for providing driving force for the material receiving roll 37; the material placing assembly 31 is located on the side of the feeding end 11, the material receiving roll 37 is located on the side of the discharging end 12, the material receiving roll 37 is rotatably connected with the mounting plate 13, the first driving piece 36 is fixedly connected with the bearing table 1, and the pressing assembly 32 is located above the material placing assembly 31.

Referring to fig. 2, the material placing assembly 31 includes a bearing frame 311, a material discharging roll 312, a driving roller 313 for driving the material discharging roll 312 to rotate, a bearing roller 314 for cooperating with the driving roller 313 to bear the material discharging roll 312 with long material, and a second driving member 315 for providing driving force for the driving roller 313; bearing frame 311 and mounting panel 13 fixed connection, blowing are rolled up 312 and are installed on bearing frame 311, and drive roller 313 rotates with mounting panel 13 and is connected, and bearing roller 314 rotates with mounting panel 13 and is connected and lie in the coplanar with drive roller 313, and drive roller 313 and bearing roller 314 form the blowing that supplies the whole coil stock of long coil stock to place and roll up and drag.

Driven gears 3131 are provided at both ends of the driving roller 313, a driving gear 3151 is provided at an output end of the second driving member 315, and the driven gears 3131 and the driving gear 3151 are engaged with each other. In the present embodiment, driven gear 3131 and drive gear 3151 are provided in two sets, and driven gear 3131 and drive gear 3151 are located on opposite end surfaces of two sets of mounting plates 13. The second driving element 315 drives the driving roller 313 to move, the driving roller 313 rubs with the long coil stock on the outer circumferential wall of the discharge coil 312 to drive the discharge coil 312 to move, the long coil stock on the outer circumferential wall of the discharge coil 312 rubs with the bearing roller 314 to drive the bearing roller 314 to move, and the driving roller 313 is matched with the bearing roller 314, so that the long coil stock keeps a constant-speed feeding state to provide assistance for feeding, and feeding operation is completed.

In this embodiment, the bearing frame 311 has a cross beam 3111, two sets of parallel upright posts 3112, and two sets of bearing blocks 3113; the length direction of crossbeam 3111 is unanimous and parallel to each other with the length direction of plummer 1, and crossbeam 3111 is located between two sets of mounting panel 13 and the both ends of crossbeam 3111 respectively with the opposite face fixed connection of two sets of mounting panel 13, the length direction of two sets of stands 3112 all with the length direction mutually perpendicular of crossbeam 3111, bearing block 3113 install on stand 3112 and with stand 3112 slide and be connected, the blowing is rolled up 312 and is located between two bearing blocks 3113. Further, in order to enlarge the adaptability of the bearing frame 311, the cross beam 3111 is provided with a slide rail, and the upright 3112 is provided with a slide block matched with the slide rail, so that the upright 3112 is connected with the cross beam 3111 in a sliding manner to adjust the distance between the two upright 3112 according to the size of the coil 312.

Referring to fig. 1 and 2, the nip assembly 32 includes a back nip roll 321, a middle nip roll 322, a front nip roll 323, and a nip 324. The length directions of the back pressing roller 321, the middle pressing roller 322 and the front pressing roller 323 are consistent with and parallel to the length direction of the bearing platform 1, and two ends of the back pressing roller 321, the middle pressing roller 322 and the front pressing roller 323 are respectively connected with the two groups of mounting plates 13 in a rotating manner; the back pressing roller 321 is located at the feeding end 11, the front pressing roller 323 is located at the discharging end 12, and both the back pressing roller 321 and the front pressing roller 323 are higher than the end surface of the bearing platform 1 far away from the ground and form a first pressing channel 34 for the long coil to pass through. In order to adapt to long rolls of different thicknesses, the mounting plate 13 is further provided with a lifting adjusting member 132 for adjusting the back nip roller 321 and the front nip roller 323. In the present embodiment, the elevation adjusting member 132 is provided with four sets respectively located at both ends of the nip rear roller 321 and the nip front roller 323.

The middle swaging roller 322 is located between the front swaging roller 323 and the rear swaging roller 321 and below the cross bar 211 of the gantry 21, and the end surfaces of the middle swaging roller 322 and the bearing table 1 far away from the ground form a second swaging channel 3221 for the long coil to pass through. Further, in order to facilitate replacement of the long coil, a pressing roller guide block 131 is further arranged at a joint of the mounting plate 13 and the pressing medium roller 322, the pressing roller guide block 131 is provided with a limiting groove 1311 for limiting the pressing medium roller 322 and a placing groove 1312 for supporting the pressing medium roller 322, the placing groove 1312 is higher than the limiting groove 1311 and is communicated with the limiting groove 1311, and an opening end of the limiting groove 1311 faces the bearing table 1. In the printing work, two ends of the material pressing middle roller 322 are respectively positioned in the limiting grooves 1311; when the long coil needs to be replaced, the pressing middle roller 322 is adjusted from the limiting groove 1311 to the placing groove 1312, so that the second pressing channel 3221 is enlarged, and the long coil is convenient to replace; after the long coil stock is replaced, the pressing middle roller 322 is adjusted from the placing groove 1312 into the limiting groove 1311, so that the pressing middle roller 322 can press the long coil stock continuously.

Referring to fig. 1 and 3, the tablet 324 is located between the gantry 21 and the carrier table 1, and a pressing channel 3241 for passing the long roll is provided between the tablet 324 and the carrier table 1. The material pressing sheet 324 comprises a fixing portion 3242 for connecting the portal frame 21 and a pressing portion 3244 for pressing the long material, the fixing portion 3242 is located at one end of the material pressing sheet 324 close to the feeding end 11, and the pressing portion 3244 is located at one end of the material pressing sheet 324 close to the discharging end 12. The fixing portion 3242 is provided with a waist-shaped hole 3243 through which a bolt penetrates, and the bolt penetrates through the waist-shaped hole 3243 so that the material pressing sheet 324 can be detachably connected with the portal frame 21 and the position of the material pressing sheet 324 can be adjusted; the length direction of the pressing part 3244 is consistent with the feeding direction of the long coil, a guide inclined surface 3245 is arranged at one end of the pressing part 3244 close to the feeding end 11, and an opening which is gradually narrowed along the feeding direction of the long coil is formed by the guide inclined surface 3245 and the end surface of the bearing table 1 far away from the ground.

Referring to fig. 2 and 3, the long coil passes through the feeding end 11 and enters the first pressing channel 34, the pressing rear roller 321 performs first pressing on the long coil to enable the long coil to be flat, the pressing middle roller 322 performs second pressing on the long coil, the long coil after the second pressing enters the pressing channel 3241 through an opening formed between the guide inclined surface 3245 and the end surface of the bearing table 1 far away from the ground, the pressing plate performs third pressing on the long coil, the phenomena of edge warping and edge curling of the long coil in the printing process are reduced, and the long coil is leveled.

Referring to fig. 1 and 4, the tension assembly 35 includes a tension roller 351, a synchronizing gear 352 mounted to both ends of the tension roller 351, a follower roller 353, and a tension sliding bracket 354 for mounting the tension roller. The tensioning roller 351 is located in the tensioning sliding frame 354 and is connected with the tensioning sliding frame 354 in a sliding mode, the synchronizing gear 352 is fixedly connected with the tensioning roller 351, the follow-up roller 353 is located on the side of the feeding end 11 and is rotationally connected with the mounting plate 13, and the tensioning sliding frame 354 is fixedly connected with the mounting plate 13. In this embodiment, the tension sliding frame 354 has two sets, the center of gravity is located on the same horizontal plane, a gear set is arranged between the follower roller 353 and the driving roller 313, and the follower roller 353 transmits the driving force to rotate through the gear set.

Referring to fig. 2 and 4, the further tension sliding frame 354 is provided with a rack 3542 for engaging the synchronizing gear 352 and a mounting groove 3541 for accommodating the tension roller 351, the rack 3542 is fixedly connected with the tension sliding frame 354, and the synchronizing gear 352 is engaged with the rack 3542. In this embodiment, the tensioning assemblies 35 are arranged in two groups and located at the feeding end 11 and the discharging end 12, the tensioning rollers 351 are located below the follower rollers 353 and the unwinding roll 312 and form a height difference, the long roll material passes through the follower rollers 353 and passes out of the lower portion of the tensioning rollers 351 to enter the first material pressing channel 34, the tensioning rollers 351 adjust the relative positions of the synchronizing gear 352 and the rack 3542 according to the tensioning force between the unwinding roll 312 and the winding roll 37, and the speed difference and the deviation correction between the unwinding roll 312 and the winding roll 37 are reduced, so that the long roll material is kept in a tensioned state in the conveying process, and a tensioning force is provided for the long roll material.

The implementation principle of the printing equipment suitable for the long coil stock is as follows: the second driving piece 315 drives the driving roller 313 to rotate, the driving roller 313 rubs the long roll material on the outer circumferential wall of the discharge roll 312 to drive the discharge roll 312 to move, so that the long roll material on the outer circumferential wall of the discharge roll 312 rubs the bearing roller 314 to drive the bearing roller 314 to move to realize feeding; the long coil passes through the upper end of the follower roller 353, passes through the lower end of the tension roller 351 and enters the first pressing channel 34, and the long coiled material is pressed for the first time by the pressing rear roller 321; the primarily pressed long coil enters the second pressing channel 3221 from the feeding end 11 and passes through the pressing middle roller 322, the long coil enters the second pressing channel 3221 and contacts with the pressing middle roller 322 to generate friction so as to drive the pressing middle roller 322 to rotate, and the pressing middle roller 322 performs secondary pressing on the middle position of the long coil; after secondary pressing, the long coil enters a pressing channel 3241 through a guide inclined surface 3245 and passes through a pressing plate to be pressed for the third time and be flattened on two sides; the long coil stock after the third pressing is placed on the bearing platform 1 and passes through the printing channel 4, the printing nozzle prints and sprays the long coil stock, the long coil stock further passes through the discharge end 12 and enters the front pressing roller 323, the front pressing roller 323 performs pressing again on the printed long coil stock, and the first driving piece 36 drives the material collecting roll 37 to rotate to collect the printed long coil stock.

The above is the preferred embodiment of the present application and is not intended to limit the scope of the present application in that like parts are represented by like reference numerals, it being understood that the words "upper" and "lower" used in the above description refer to directions in the drawings and the words "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of the particular part. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. Printing equipment suitable for long rolls of material, characterized by comprising,

the device comprises a bearing table (1), wherein the bearing table (1) is provided with a feeding end (11) and a discharging end (12), and the bearing table (1) is provided with a mounting plate (13);

the printing mechanism (2) is arranged on the bearing table (1) and forms a printing channel (4) for the long coil stock to pass through with the bearing table (1);

the transmission mechanism (3), the said transmission mechanism (3) is set up on the said mounting plate (13); the conveying mechanism (3) comprises a material placing assembly (31), a pressing assembly (32) and a material collecting roll (37), the material placing assembly (31) is located at the feeding end (11), the material collecting roll (37) is located at the discharging end (12), and the material collecting roll (37) is rotatably connected with the mounting plate (13); the pressing assembly (32) comprises a rear pressing roll (321) and a front pressing roll (323), the rear pressing roll (321) is located at the feeding end (11), the front pressing roll (323) is located at the discharging end (12), and first pressing channels (34) for leveling long rolls are formed among the rear pressing roll (321), the front pressing roll (323) and the bearing table (1).

2. A printing apparatus adapted for long webs according to claim 1, wherein the nip assembly (32) further comprises a nip middle roller (322) mounted to the mounting plate (13), the nip middle roller (322) being located between the nip front roller (323) and the nip back roller (321); the middle pressing roller (322) is parallel to the front pressing roller (323) and the rear pressing roller (321), and a second pressing channel (3221) for secondary leveling of the long coil is formed between the middle pressing roller (322) and the bearing table (1).

3. The printing device suitable for the long roll material is characterized in that the mounting plate (13) is provided with a pressing roller guide block (131), the pressing roller guide block (131) is provided with a limiting groove (1311) used for limiting the movement of the medium pressing roller (322) towards the feeding direction of the long roll material and a placing groove (1312) used for supporting the medium pressing roller (322), the placing groove (1312) is communicated with the limiting groove (1311), and a feeding space used for the free passing of the long roll material is formed between the low end of the placing groove (1312) and the low end of the limiting groove (1311).

4. The printing device suitable for long rolls of material according to claim 1, wherein the pressing assembly (32) further comprises a pressing sheet (324), the pressing sheet (324) is located between the printing mechanism (2) and the carrier (1), the printing mechanism (2) comprises a gantry (21), the gantry (21) is in the same direction as the central axis of the pressing rear roller (321), the pressing sheet (324) is connected with the gantry (21), and a pressing channel (3241) for long rolls of material to pass through is arranged between the pressing sheet (324) and the carrier (1).

5. The printing apparatus for long webs according to claim 4, wherein the sheet holder (324) includes a pressing portion (3244) for pressing the long web, a length direction of the pressing portion (3244) is identical to a feeding direction of the long web; one end of the pressing part (3244) close to the feeding end (11) is provided with a guide inclined plane (3245), and the guide inclined plane (3245) and the end face of the bearing table (1) far away from the ground form an opening which gradually narrows along the feeding direction of the long coil.

6. A printing apparatus according to claim 1, wherein the material holding assembly (31) comprises a bearing frame (311), a material discharging roll (312), a driving roller (313) for driving the material discharging roll (312) to rotate, and a second driving member (315) for providing a driving force for the driving roller (313), the bearing frame (311) is fixedly connected with the mounting plate (13), the material discharging roll (312) is mounted on the bearing frame (311), and the driving roller (313) is rotatably connected with the mounting plate (13).

7. A printing device suitable for long webs according to claim 6, characterized in that said material placement unit (31) further comprises a carrying roller (314) for cooperating with said driving roller (313) to carry said material discharge roll (312), said carrying roller (314) being rotatably connected to said mounting plate (13), the central axis of said carrying roller (314) being parallel to and level with the central axis of said driving roller (313).

8. A printing device suitable for long rolls according to claim 1, wherein said transport mechanism (3) further comprises a tensioning assembly (35) for increasing the tensioning force of the long rolls, said tensioning assembly (35) is mounted on both said feed end (11) and said discharge end (12), said tensioning assembly (35) comprises a tensioning roller (351), a follower roller (353) and a tensioning sliding frame (354), said tensioning roller (351) is rotationally connected with said tensioning sliding frame (354), said follower roller (353) is rotationally connected with said mounting plate (13).

9. A printing apparatus adapted for long webs according to claim 8, characterized in that said tensioning assembly (35) further comprises a synchronizing gear (352), said synchronizing gear (352) being located at both ends of said tensioning roller (351); the tensioning sliding frame (354) is provided with a mounting groove (3541) used for accommodating the tensioning roller (351) and a rack (3542) used for matching the synchronizing gear (352), the rack (3542) is fixedly connected with the tensioning sliding frame (354), and the synchronizing gear (352) is meshed with the rack (3542).

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