CN216804852U

CN216804852U - Printing machine adjusting device capable of preventing paper from being wrinkled

Info

Publication number: CN216804852U
Application number: CN202220180032.4U
Authority: CN
Inventors: 陈华义
Original assignee: Zhejiang Yunling Digital Technology Co ltd
Current assignee: Zhejiang Yunling Digital Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-24
Anticipated expiration: 2032-01-21

Abstract

The application relates to the technical field of printing machines, in particular to a printing machine adjusting device capable of preventing paper wrinkles, which comprises a rack, wherein a conveying belt used for conveying paper is arranged on the rack, a wrinkle removing frame stretching over two sides of the conveying belt is further arranged on the rack, an expanding roller used for removing paper wrinkles, a first flattening roller used for flattening the upper surface of the paper and a second flattening roller used for flattening the lower surface of the paper are rotatably arranged on the wrinkle removing frame, and heating pipes are arranged in the first flattening roller and the second flattening roller; the paper firstly passes through the surface of the spreading roller along the self-conveying direction and then passes between the first flattening roller and the second flattening roller. This application has and makes the paper can receive the expanding effect earlier before getting into the printing machine, and the effect of recompression and high temperature ironing effect makes the paper keep the leveling state after removing the wrinkle, reduces because of the not good probability of paper fold result in printing quality.

Description

Printing machine adjusting device capable of preventing paper from being wrinkled

Technical Field

The application relates to the technical field of printing machines, in particular to a printing machine adjusting device capable of preventing paper wrinkles.

Background

A printer is an apparatus for transferring characters and images to the surface of a printing material such as textiles, paper, and leather. The printing machine is generally composed of mechanisms such as plate loading, inking, stamping and paper feeding, when the printing machine works, the paper feeding mechanism firstly feeds paper and other printing stocks into the printing machine, and the stamping mechanism presses the inked printing plate on the printing stocks, so that patterns stained with the ink on the printing plate are transferred to the surfaces of the printing stocks to finish printing.

In view of the above-mentioned related arts, the inventor believes that when the printing material is paper, the paper may have small wrinkles which are not easily detected by an operator before being fed into the printing machine, and the feeding of the wrinkled paper into the printing machine for printing may cause uneven printed patterns, which in turn may cause poor printing quality.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the printing quality is poor when the wrinkled paper enters the printing machine for printing, the application provides a printing machine adjusting device capable of preventing the wrinkling of the paper.

The application provides a can prevent printing machine adjusting device of paper fold adopts following technical scheme:

a printing machine adjusting device capable of preventing paper wrinkles comprises a rack, wherein a conveying belt used for conveying paper is arranged on the rack, a wrinkle removing frame stretching across two sides of the conveying belt is further arranged on the rack, a spreading roller used for removing the paper wrinkles, a first flattening roller used for flattening the upper surface of the paper and a second flattening roller used for flattening the lower surface of the paper are rotatably arranged on the wrinkle removing frame, and heating pipes are arranged inside the first flattening roller and the second flattening roller; the paper passes through the surface of the spreading roller along the self-transmission direction and then passes between the first flattening roller and the second flattening roller.

By adopting the technical scheme, before the paper enters the printer for formal printing under the transportation of the conveyor belt, the paper can be firstly subjected to the spreading action of the spreading roller, the spreading roller applies a force to the paper, the force moves outwards from the center of the paper, and the paper is stressed and then outwards unfolded, so that fine wrinkles on the paper are reduced; after wrinkles are eliminated, the paper passes through a position between the first flattening roller and the second flattening roller, the heating pipe enables the surfaces of the first flattening roller and the second flattening roller to form high temperature, and the paper is subjected to flattening effect and high-temperature ironing effect brought by the first flattening roller and the second flattening roller simultaneously, so that the paper is kept in a flat state after the wrinkles are eliminated; the paper enters the printing machine after being subjected to the wrinkle removing and high-temperature flattening effects, and the probability of poor printing quality caused by the wrinkle of the paper can be reduced as much as possible.

Optionally, spacing screws are rotatably arranged on two inner walls of the wrinkle removing frame, axes of the spacing screws are perpendicular to the upper surface of the conveyor belt, the spacing screws penetrate through and are provided with a first sliding block and a second sliding block at the same time, thread turning directions of the spacing screws from the center to two ends are opposite, thread pitches of the spacing screws are the same, the first sliding block and the second sliding block are respectively in threaded connection with thread sections of the spacing screws in opposite turning directions, and the first sliding block and the second sliding block are both in sliding connection with the wrinkle removing frame; the first flattening roller is rotatably connected to the first sliding block, and the second flattening roller is rotatably connected to the second sliding block.

Through adopting above-mentioned technical scheme, the soon of first slider and second slider threaded connection department is opposite, consequently when the interval screw rod takes place to rotate, first slider and second slider can be close to simultaneously or keep away from simultaneously, and then drive first planishing roller and second planishing roller and be close to simultaneously or keep away from to change the distance between first planishing roller and the second planishing roller, so that adapt to the printed matter such as the paper of different thickness, improve device's practicality.

Optionally, the first slider is located above the second slider, the spreader bar is rotatably connected to the first slider, and a plane of the spreader bar and the first flattening roller is parallel to the upper surface of the conveyor belt.

By adopting the technical scheme, the expanding roller and the first flattening roller are simultaneously arranged on the first sliding block, and when the position of the first flattening roller is adjusted by rotating the spacing screw rod, the expanding roller can synchronously adjust the height along with the first flattening roller; when the distance between the first flattening roller and the second flattening roller is adjusted, the distance between the spreading roller and the conveying belt can be synchronously adjusted, so that the first flattening roller and the spreading roller can synchronously move to adapt to printed articles such as paper with different thicknesses, and the practicability of the device is improved; meanwhile, a driving mechanism for adjusting the spreading roller can be reduced, the relative position of the first flattening roller and the spreading roller can be kept unchanged, the probability of turning of the paper caused by height difference between the first flattening roller and the spreading roller is reduced, and the probability of wrinkles caused by turning of the paper in the operation process is also reduced.

Optionally, a driving cavity is formed in the top of the wrinkle removing frame, the top end of the spacing screw rod penetrates into the driving cavity and is coaxially fixed with a driven wheel, a driving rod is rotatably arranged on the inner wall of the driving cavity, two driving wheels penetrate through the driving rod and are coaxially fixed on the driving rod, and the driving wheels are meshed with the driven wheel.

Through adopting above-mentioned technical scheme, the operation actuating lever rotates, can drive the action wheel rotatory, again because of the action wheel with from the driving wheel meshing, the action wheel is rotatory can drive in step and rotate from the driving wheel, then it is rotatory to drive two interval screw rods synchronous occurrences, then make two pairs of first sliders and second slider be close to or keep away from in step, and then make between first flattening roller and the second flattening roller synchronous being close to or keeping away from, reduce because of two interval screw rods rotatory asynchronous probability that leads to two pairs of first sliders and the different displacement of second slider, and then also reduce the probability that first flattening roller both ends junction damaged.

Optionally, the rack is further provided with limiting frames stretching over two sides of the conveying belt, two ends of each limiting frame are connected with baffles in a sliding mode, the baffles are connected to two sides of the paper in a sliding mode respectively, and the baffles slide back and forth on the limiting frames along the width direction of the paper.

By adopting the technical scheme, the baffle is arranged to limit the conveying direction of the paper, so that the paper can be positioned in the center of the conveyor belt as far as possible for transportation, the probability of deviation of the paper during transportation is reduced, and the subsequent spreading roller can conveniently spread and expand the paper; and the probability that the paper continuously deviates under the expanding action of the expanding roller due to the deviation of the paper and finally the side edge of the paper touches the side edge of the rack to generate wrinkles is reduced.

Optionally, the limiting frame is rotatably provided with an adjusting screw, the extending direction of the adjusting screw is parallel to the width direction of the paper, the adjusting screw penetrates through the limiting frame and is in threaded connection with an adjusting slide block, the adjusting slide block is connected to the limiting frame in a sliding mode, and meanwhile the baffle is installed on the adjusting slide block.

Through adopting above-mentioned technical scheme, when rotating adjusting screw, can drive adjusting block and make a round trip to slide along paper width direction, and then drive the baffle and make a round trip to slide along paper width direction, and then adjusting block's position to printed article such as the paper of adaptation different width improve the practicality of device.

Optionally, the first flattening roller comprises a rotating shaft rotatably connected to the first slider, a first baffle is coaxially and fixedly arranged at one end of the rotating shaft, an outer cylinder for attaching paper is detachably connected to the circumference of the first baffle, and the outer cylinder is coaxial with the first baffle; a heating cavity is formed in the outer barrel, the heating pipes are uniformly distributed in the heating cavity, and the heating pipes are detachably connected to the first baffle plate; the first flattening roller and the second flattening roller have the same structure.

Through adopting above-mentioned technical scheme for heating pipe and urceolus on first flattening roller and the second flattening roller are all dismantled, and the maintenance and the dismouting of the follow-up heating pipe of being convenient for and urceolus improve the convenience of device.

Optionally, a clamping block is fixedly arranged at one end, close to the first baffle, of the outer barrel, and a clamping groove for inserting the clamping block is formed in the first baffle.

Through adopting above-mentioned technical scheme, when needing to install the urceolus, at first aim at fixture block and draw-in groove and peg graft, just confirmed the relative position of urceolus and first baffle after pegging graft, and then make the screw change when the installation aim at the screw hole, make the urceolus installation more convenient.

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

the paper can be subjected to a spreading effect, a flattening effect and a high-temperature ironing effect before entering a printer for formal printing under the transportation of the conveyor belt, so that the paper is kept in a flat state after wrinkle removal, and the probability of poor printing quality caused by the wrinkle of the paper can be reduced as much as possible;

the distance between the first flattening roller and the second flattening roller can be adjusted, the first flattening roller and the spreading roller are positioned on the same slide block, and the position of the spreading roller can be adjusted simultaneously when the first flattening roller is adjusted, so that the device is suitable for printing articles such as paper with different thicknesses, and the practicability of the device is improved;

the setting of baffle can carry out spacingly to the direction of delivery of paper, reduces the probability that the paper takes place the skew when the transportation.

Drawings

Fig. 1 is an overall view of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a stop block according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a wrinkle removing frame according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the first flattening roller and the second flattening roller of the embodiment of the present application.

Description of reference numerals: 1. a frame; 2. a conveyor belt; 3. a limiting mechanism; 4. a wrinkle removing mechanism; 5. a limiting frame; 6. a baffle plate; 7. a width adjusting section; 8. adjusting the screw rod; 9. adjusting the sliding block; 10. an adjustment groove; 11. adjusting a hand wheel; 12. a connecting rod; 13. connecting grooves; 14. a wrinkle removing frame; 15. a spreader roll; 16. a first flattening roller; 17. a second flattening roller; 18. a space adjusting section; 19. a spacing screw; 20. a first slider; 21. a second slider; 22. a sliding groove; 23. a drive section; 24. a drive chamber; 25. a drive rod; 26. a driving wheel; 27. a driven wheel; 28. spacing hand wheels; 29. a rotating shaft; 30. an inner roll; 31. a first baffle plate; 32. an outer cylinder; 33. a heating cavity; 34. heating a tube; 35. a second baffle; 36. a clamping block; 37. a clamping groove.

Detailed Description

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

The embodiment of the application discloses can prevent printing machine adjusting device of paper fold, refer to fig. 1, including frame 1, be provided with the conveyer belt 2 that is used for conveying the paper in frame 1, along the paper traffic direction set gradually spacing stop gear 3 to paper width direction and be used for reducing the wrinkle mechanism 4 that removes of paper fold in frame 1 simultaneously, the paper leaves to remove and send into the printing machine again behind wrinkle mechanism 4 and print, reduces the influence of paper fold to printing quality as far as possible.

Referring to fig. 2, the limiting mechanism 3 comprises a limiting frame 5 and baffle plates 6 respectively arranged at two ends of the limiting frame 5, two ends of the limiting frame 5 along the width direction of the conveyor belt 2 cross the conveyor belt 2 and are both fixedly connected to the upper surface of the frame 1, the two baffle plates 6 are respectively arranged at two sides of the conveyor belt 2, and the two baffle plates 6 are simultaneously connected to two sides of the conveyor belt 2 and two sides of a paper in a sliding manner; both ends of the limiting frame 5 are provided with width adjusting parts 7 for adjusting the positions of the baffles 6, and each width adjusting part 7 adjusts the position of one corresponding baffle 6.

Referring to fig. 2, the width adjusting portion 7 includes an adjusting screw 8 and an adjusting slider 9, the adjusting screw 8 passes through and is in threaded connection with the adjusting slider 9, an adjusting groove 10 is formed in the limiting frame 5, the extending direction of the adjusting groove 10 is parallel to the width direction of the conveyor belt 2, and the axis of the adjusting screw 8 is parallel to the width direction of the conveyor belt; one end of the adjusting screw 8 is rotatably connected to the inner wall of the adjusting groove 10, the other end of the adjusting screw 8 penetrates out of the limiting frame 5 and is connected to the limiting frame 5 in a sliding mode, one end, penetrating out of the limiting frame 5, of the adjusting screw 8 is coaxially and fixedly connected with an adjusting hand wheel 11, and meanwhile the adjusting slide block 9 is connected into the adjusting groove 10 in a sliding mode; the fixed surface of adjusting block 9 is provided with connecting rod 12, and the one end fixed connection that adjusting block 9 was kept away from to connecting rod 12 is in 6 upper surfaces of baffle, still sets up the spread groove 13 that supplies connecting rod 12 to wear out on the sliding frame, and the extending direction of spread groove 13 is on a parallel with 2 width direction of conveyer belt, and connecting rod 12 slides along 2 width direction of conveyer belt and connects in spread groove 13.

Referring to fig. 2, rotating the adjusting hand wheel 11 can drive the adjusting screw 8 to rotate, then drive the adjusting slide block 9 to slide back and forth along the width direction of the conveyor belt 2, and further drive the baffle 6 to slide back and forth along the width direction of the conveyor belt 2. The baffle 6 homoenergetic at frame both ends that slides carries out position control, carries out spacingly through two baffles 6 to the paper that send on the area 2, reduces because of the skew probability that influences the printing effect of paper direction of delivery.

Referring to fig. 3, the wrinkle removing mechanism 4 includes a wrinkle removing frame 14, two ends of the wrinkle removing frame 14 along the width direction of the conveyor belt 2 cross the conveyor belt 2 and are both fixedly connected to the frame 1, and the wrinkle removing frame 14 is simultaneously fixedly connected to the upper surface of the frame 1 and the vertical side wall of the frame 1 far away from the limiting mechanism 3; an expanding roller 15, a first flattening roller 16 and a second flattening roller 17 are arranged between the wrinkle removing frames 14, the expanding roller 15 and the first flattening roller 16 are parallel to each other in the horizontal direction, the first flattening roller 16 and the second flattening roller 17 are parallel to each other in the vertical direction, and paper firstly passes through the lower surface of the expanding roller 15 along the self-conveying direction and then passes between the first flattening roller 16 and the second flattening roller 17.

Referring to fig. 3, two opposite vertical inner walls of the wrinkle removing frame 14 are respectively provided with a distance adjusting part 18 for adjusting the distance between the first flattening roller 16 and the second flattening roller 17, the distance adjusting part 18 comprises a distance screw 19, a first slider 20 and a second slider 21, the expander roller 15 and the first flattening roller 16 are both rotatably connected to the first slider 20, and the second flattening roller 17 is rotatably connected to the second slider 21; the spacing screw rod 19 simultaneously penetrates through and is in threaded connection with the first sliding block 20 and the second sliding block 21; taking the upper surface of the transmission belt as a boundary, the two sections of threads of the pitch screw 19 positioned above and below the boundary have opposite rotating directions and the same thread pitch, the first slide block 20 is positioned below the boundary, and the second slide block 21 is positioned below the boundary; two opposite vertical inner walls of the wrinkle removing frame 14 are respectively provided with a sliding groove 22, and the first sliding block 20 and the second sliding block 21 are connected in the sliding grooves 22 in a sliding manner along the vertical direction; two interval screw rods 19 are all vertical, and simultaneously the bottom of interval screw rods 19 is rotated and is connected in the inner wall of 22 bottoms of sliding groove, and the top of interval screw rods 19 is worn out and sliding connection is in the inner wall of 22 tops of sliding groove.

Referring to fig. 3, the wrinkle removing frame 14 is further provided with a driving part 23 for driving the two spaced screws 19 to rotate simultaneously, and the top of the wrinkle removing frame 14 is provided with a driving cavity 24 for accommodating the driving part 23; the driving portion 23 includes a drive lever 25, two action wheels 26 and two driven wheels 27, action wheel 26 all sets up to bevel gear from driven wheel 27, the one end of drive lever 25 is rotated and is connected in the 24 inner walls of drive chamber, the other end of drive lever 25 is worn out and is removed wrinkle frame 14 and coaxial fixedly connected with interval hand wheel 28, drive lever 25 passes simultaneously and coaxial fixed connection in two action wheels 26, follow the equal fixed connection of 27 one end that slides out slot 22 in interval screw rod 19, action wheel 26 meshes with driven wheel 27. The rotating distance hand wheel 28 can drive the driving rod 25 to rotate, then drive the driving wheel 26 to rotate, the driving wheel 26 rotates to drive the driven wheel 27 to rotate, then drive the two distance screw rods 19 to synchronously rotate, so that the first sliding block 20 and the second sliding block 21 are close to or far away from each other, and the distance between the first flattening roller 16 and the second flattening roller 17 is adjusted to adapt to paper with different thicknesses.

Referring to fig. 4, the first flattening roller 16 is identical in structure to the second flattening roller 17; the second flattening roller 17 comprises a rotating shaft 29 which is rotatably connected with the first sliding block 20 or the second sliding block 21, an inner roller 30 is coaxially and fixedly arranged on the rotating shaft 29, a first baffle plate 31 is coaxially and fixedly sleeved at one end of the rotating shaft 29, and meanwhile, the first baffle plate 31 is fixedly connected with the end part of the inner roller 30; the first baffle 31 is coaxially connected with an outer cylinder 32 through a screw, the circumferential outer surface of the outer cylinder 32 is flush and smooth with the circumferential outer wall of the first baffle 31, and the circumferential outer surface of the outer cylinder 32 is smooth and is attached to paper; a heating cavity 33 is formed between the outer cylinder 32 and the inner roller 30, and meanwhile, three heating pipes 34 are connected to the first baffle plate 31 through screws, and the three heating pipes 34 are uniformly distributed in the heating cavity 33.

Referring to fig. 4, one end of the rotating shaft 29, which is far away from the first baffle 31, is coaxially sleeved and connected with a second baffle 35 in a sliding manner, the circumferential outer surface of the second baffle 35 is smooth, the second baffle 35 is fixedly connected with the inner roller 30 through a screw, and meanwhile, the second baffle 35 is fixedly connected with the outer barrel 32 through a screw, so that the second baffle 35 and the outer barrel 32 can be detached, and the outer barrel 32 and the heating pipe 34 can be conveniently detached and maintained; a clamping block 36 is fixedly arranged at one end of the outer cylinder 32 close to the first baffle 31, a clamping groove 37 for inserting the clamping block 36 is correspondingly formed in the first baffle 31, the clamping block 36 is also correspondingly arranged at one end of the outer cylinder 32 close to the second baffle 35, and the clamping groove 37 (not shown in the figure) is correspondingly formed in the second baffle 35; when the outer cylinder 32 is installed, the clamping block 36 is inserted into the corresponding clamping groove 37, so that the relative positions of the outer cylinder 32, the first baffle 31 and the second baffle 35 are fixed conveniently, and further, when the screw is installed, the screw hole is aligned more easily, so that the outer cylinder 32 is installed more conveniently.

The implementation principle of the printing machine adjusting device capable of preventing paper wrinkles in the embodiment of the application is as follows: when the paper is printed, firstly, the adjusting hand wheel 11 is rotated to adjust the positions of the baffle plates 6 at the two ends of the sliding frame, so that the baffle plates 6 limit the two sides of the paper; then, a spacing hand wheel 28 is rotated to adjust the spacing between the first flattening roller 16 and the second flattening roller 17 and the spacing between the expanding roller 15 and the upper surface of the conveyor belt 2, so that the spacing can adapt to the thickness of the paper; the paper leaves the baffle 6 and then passes through the lower surface of the expanding roller 15, and the expanding roller 15 can apply a force outwards from the center of the paper to the paper, so that fine wrinkles on the paper are reduced; then, the paper passes through between the first flattening roller 16 and the second flattening roller 17, at this time, the electric heating pipes 34 in the first flattening roller 16 and the second flattening roller 17 work to enable the circumferential outer surfaces of the first flattening roller 16 and the second flattening roller 17 to form a high-temperature state, the paper after wrinkle removal keeps flat under the high-temperature and flattening effects of the first flattening roller 16 and the second flattening roller 17, and then wrinkle removal of the paper is achieved; the paper after wrinkle removal enters the printing machine again to be printed, and the probability of poor printing quality caused by the wrinkle of the paper is reduced as much as possible.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: 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

1. The utility model provides a can prevent printing machine adjusting device of paper fold, includes frame (1), is provided with conveyer belt (2) that are used for conveying the paper in frame (1), its characterized in that: the machine frame (1) is further provided with a wrinkle removing frame (14) stretching across two sides of the conveyor belt (2), the wrinkle removing frame (14) is rotatably provided with a spreading roller (15) used for removing wrinkles of paper, a first flattening roller (16) used for flattening the upper surface of the paper and a second flattening roller (17) used for flattening the lower surface of the paper, and heating pipes (34) are arranged inside the first flattening roller (16) and the second flattening roller (17); the paper passes through the surface of the spreading roller (15) along the self-conveying direction and then passes between the first flattening roller (16) and the second flattening roller (17).

2. A printer adjustment device for preventing wrinkling of paper according to claim 1 wherein: spacing screw rods (19) are rotatably arranged on two inner walls of the wrinkle removing frame (14), the axes of the spacing screw rods (19) are perpendicular to the upper surface of the conveyor belt (2), the spacing screw rods (19) simultaneously penetrate through and are provided with first sliding blocks (20) and second sliding blocks (21), the screwing directions of the screw threads from the center to two ends of the spacing screw rods (19) are opposite, the screw pitches of the screw threads are the same, the first sliding blocks (20) and the second sliding blocks (21) are respectively in threaded connection with the screw thread sections of the spacing screw rods (19) in the opposite screwing directions, and the first sliding blocks (20) and the second sliding blocks (21) are both in sliding connection with the wrinkle removing frame (14); the first flattening roller (16) is rotatably connected to the first sliding block (20), and the second flattening roller (17) is rotatably connected to the second sliding block (21).

3. A printer adjustment device for preventing paper cocking as set forth in claim 2, wherein: the first sliding block (20) is positioned above the second sliding block (21), the spreading roller (15) is rotatably connected to the first sliding block (20), and the plane of the spreading roller (15) and the plane of the first flattening roller (16) are parallel to the upper surface of the conveyor belt (2).

4. A printer adjustment device for preventing paper cocking as set forth in claim 2, wherein: drive chamber (24) have been seted up at wrinkle chasing frame (14) top, the top of interval screw rod (19) all penetrates drive chamber (24) and coaxial fixation has from driving wheel (27), it is provided with actuating lever (25) to rotate on the inner wall of drive chamber (24), pass on actuating lever (25) and coaxial fixation have two action wheels (26), action wheel (26) with from driving wheel (27) meshing.

5. A printer adjustment device for preventing wrinkling of paper according to claim 1 wherein: still be provided with on frame (1) and span spacing (5) in conveyer belt (2) both sides, the both ends of spacing (5) are all slided and are connected with baffle (6), baffle (6) sliding connection is in the both sides of paper respectively, and baffle (6) are all made a round trip to slide in spacing (5) along paper width direction.

6. A printer adjustment device for preventing paper cocking according to claim 5, wherein: spacing (5) are gone up to rotate and are provided with adjusting screw (8), adjusting screw (8) extending direction is on a parallel with the width direction of paper, adjusting screw (8) pass and threaded connection has adjusting block (9), adjusting block (9) sliding connection is in spacing (5), simultaneously baffle (6) are installed in adjusting block (9).

7. A printer adjustment device for preventing paper cocking as set forth in claim 2, wherein: the first flattening roller (16) comprises a rotating shaft (29) which is rotatably connected to the first sliding block (20), one end of the rotating shaft (29) is coaxially and fixedly provided with a first baffle (31), an outer cylinder (32) used for attaching paper is detachably connected to the circumference of the first baffle (31), and the outer cylinder (32) is coaxial with the first baffle (31); a heating cavity (33) is formed in the outer barrel (32), the heating pipes (34) are uniformly distributed in the heating cavity (33), and meanwhile, the heating pipes (34) are detachably connected to the first baffle plate (31); the first flattening roller (16) and the second flattening roller (17) have the same structure.

8. A printer adjustment assembly to prevent paper cocking as set forth in claim 7 wherein: a clamping block (36) is fixedly arranged at one end, close to the first baffle (31), of the outer barrel (32), and a clamping groove (37) used for being connected with the clamping block (36) in an inserting mode is formed in the first baffle (31).