A transport device for decorative paper printing and a working method thereof

Abstract

The present invention relates to the technical field of paper transport devices, and in particular to a transport device for decorative paper printing and a working method thereof, wherein the device comprises: a material discharging tray, which rotates along its own axis; a plurality of expansion shafts, which are evenly distributed around the material discharging tray, each expansion shaft being rotatably mounted on the material discharging tray and used to place the paper material tray; a rubber roller, which rotates along its own axis; two relative plane structures and two relative curved surface structures are arranged on the side of the rubber roller; adsorption holes are arranged on the curved surface structure; a knife roller, which rotates along its own axis and is connected to the rubber roller by transmission; a cutter is arranged on the side of the knife roller; an installation roller, which rotates along its own axis and is connected to the rubber roller by transmission; an installation structure for installing paper is arranged on the side of the installation roller; both the side of the installation roller and the side of the knife roller are tangent to the curved surface structure; a tension mechanism is arranged between the material discharging tray and the rubber roller and used to tighten the paper. The present invention can effectively meet the printing and transportation needs of decorative paper, thereby ensuring the printing quality.

Description

Technical Field

[0001] The invention relates to the technical field of paper transport devices, and in particular to a transport device for decorative paper printing and a working method thereof. Background Art

[0002] Decorative paper is an indispensable raw material in many building materials products, and it mainly plays the role of providing decorative patterns. The patterns on decorative paper are usually formed by printing. In the printing process, due to the limited length of a single roll of raw paper, the device for transporting raw paper needs to be replaced every once in a while, which is inefficient, so an automatic material replacement structure is required to replace the material. The related automatic material replacement structure in the prior art usually alternately glues the front and back sides of the paper at the connection point of the paper, and because decorative paper can usually only be printed on its front side, the existing method of alternating the front and back sides will cause some decorative papers to be printed with patterns, and even the smoother side of the tape will affect the operation of the printing device. Summary of the invention

[0003] The present invention provides a decorative paper printing transport device and a working method thereof, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above object, the present invention provides a decorative paper printing conveying device, comprising:

[0005] The discharge tray rotates along its own axis;

[0006] Multiple expansion shafts are evenly distributed around the discharge tray. Each expansion shaft is rotatably mounted on the discharge tray to place the paper tray.

[0007] The rubber roller rotates along its own axis; two opposite plane structures and two opposite curved surface structures are arranged on the side of the rubber roller; adsorption holes are arranged on the curved surface structure;

[0008] The knife roller rotates along its own axis and is connected to the rubber roller through transmission; a cutting knife is arranged on the side of the knife roller;

[0009] The mounting roller rotates along its own axis and is transmission-connected with the rubber roller; a mounting structure for mounting paper is arranged on the side of the mounting roller;

[0010] The side surfaces of the mounting roller and the knife roller are both tangent to the curved surface structure;

[0011] The tension mechanism is arranged between the unloading tray and the rubber roller and is used to make the paper taut.

[0012] Furthermore, it also includes an adjustment roller group; the adjustment roller group is arranged on the side of the rubber roller away from the discharge tray, and the adjustment roller group moves toward and away from the rubber roller in the horizontal direction; the adjustment roller group includes two vertically distributed rollers.

[0013] Furthermore, a first intermediate roller and a positioning roller group are sequentially arranged on the side of the adjustment roller group away from the knife roller; the positioning roller group is higher than the adjustment roller group, and the first intermediate roller is higher than the positioning roller group; the positioning roller group includes two vertically distributed rollers.

[0014] Furthermore, the knife roller and the mounting roller are symmetrically arranged on both sides of the rubber roller, and there is a gap between the knife roller and the mounting roller.

[0015] Furthermore, first adjustment blocks that slide vertically are arranged at both ends of the knife roller; and second adjustment blocks that slide vertically are arranged at both ends of the mounting roller.

[0016] Furthermore, the radius of the curved surface structure of the rubber roller is R, the radius of the knife roller and the installation roller are the same, both r, and R=2·r; the rotation ratio of the rubber roller to the knife roller is 2; and the rotation ratio of the rubber roller to the installation roller is 2.

[0017] Further, the mounting structure of the mounting roller is arranged on a side away from the knife roller.

[0018] Furthermore, a second intermediate roller is arranged between the discharge tray and the knife roller.

[0019] The present invention also provides a working method of a decorative paper printing transport device, which is used for the decorative paper printing transport device, and the steps include:

[0020] S10: Perform initialization settings so that a plane structure of the rubber roller faces the knife roller; set the two expansion shafts closest to the rubber roller as the material waiting area and the material discharging area in an up-down order; set the expansion shaft farthest from the rubber roller as the material changing area; and then install paper trays on each expansion shaft;

[0021] S20: Pull the paper out of the discharging area and pass it through between the knife roller and the rubber roller to start the paper transportation operation;

[0022] S30: Pull the paper in the unloading area out through between the knife roller and the rubber roller, with the paper in the unloading area above the paper in the unloading area, and then fix the end of the paper in the unloading area on the mounting roller; through the adsorption effect of the adsorption hole of the rubber roller, stick the adhesive tape on the curved surface structure of the rubber roller, with the adhesive side facing outwards;

[0023] S40: When the paper in the discharge area is almost used up, the rubber roller rotates 180 degrees, and the knife roller and the installation roller rotate simultaneously with the rotation of the rubber roller. During the rotation, the cutter of the knife roller will cut the paper in the discharge area and the paper in the waiting discharge area evenly, and the tape will stick to the ends of the paper in the discharge area and the paper in the waiting discharge area to connect them into one;

[0024] S50: The material discharging tray rotates, so that the material waiting area is transferred to the material discharging area, the material discharging area is transferred to the material changing area, and the material changing area is transferred to the material waiting area;

[0025] S60: Replace the new material tray in the material changing area;

[0026] S70: Repeat S30 to S60 to achieve continuous transmission of paper.

[0027] Furthermore, the conveying device for decorative paper printing also includes an adjustment roller group;

[0028] In step S40: during the rotation of the rubber roller, the adjustment roller group will move away from the rubber roller;

[0029] In step S40: during the rotation of the unloading tray, the adjustment roller set will move toward the rubber roller.

[0030] The technical solution of the present invention can achieve the following technical effects:

[0031] 1. Through the cooperation of rubber roller, knife roller and installation roller, the paper can be automatically replaced, which effectively reduces manual intervention and ensures that the paper can be smoothly connected during cutting and replacing, avoiding the problem of tape affecting printing quality in traditional replacing method, and ensuring the continuity of printing process and the quality of finished products.

[0032] 2. This structure can ensure that the back side of the paper is always taped when the paper is changed, thereby ensuring continuous printing of the paper.

[0033] 3. The components of the device are compactly arranged and have high space utilization, making it suitable for installation in various production environments, especially in situations where space is limited, to maximize its efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the structure of the conveying device for decorative paper printing in the present invention;

[0036] Figure 2 This is a schematic diagram of the working state of the decorative paper printing transport device of the present invention when the rubber roller rotates 0°;

[0037] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0038] Figure 4 This is a schematic diagram of the working state of the decorative paper printing transport device of the present invention when the rubber roller rotates 45°;

[0039] Figure 5 For the present invention Figure 4 The enlarged view of point B;

[0040] Figure 6 This is a schematic diagram of the working state of the decorative paper printing transport device of the present invention when the rubber roller rotates 75°;

[0041] Figure 7 For the present invention Figure 6 Enlarged view of point C;

[0042] Figure 8 This is a schematic diagram of the working state of the decorative paper printing transport device of the present invention when the rubber roller rotates 180°;

[0043] Fig. 9 For the present invention Figure 8 The enlarged view of point D;

[0044] Fig.10 It is a schematic diagram of the working of the conveying device for decorative paper printing in the present invention when the discharge tray rotates;

[0045] Fig.11 It is a schematic diagram of the structure of the rubber roller, the knife roller and the installation roller in the present invention;

[0046] Figure numerals: 1. discharge tray; 2. expansion shaft; 3. rubber roller; 3a. plane structure; 3b. curved structure; 3c. adsorption hole; 4. knife roller; 4a. cutting knife; 5. mounting roller; 5a. mounting structure; 6. tension mechanism; 7. adjustment roller group; 8. first intermediate roller; 9. positioning roller group; 10. first adjustment block; 11. second adjustment block; 12. second intermediate roller. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0048] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The present invention relates to a conveying device for decorative paper printing, such as Figures 1 to 11 As shown, including:

[0051] The material discharging tray 1 rotates along its own axis; the material discharging tray 1 is driven to rotate by the worm gear structure, and the self-locking function of the worm gear structure is used to ensure the stability of the material discharging tray 1 when it stops;

[0052] Multiple expansion shafts 2 are evenly distributed around the discharge tray 1. Each expansion shaft 2 is rotatably mounted on the discharge tray 1 to place the paper tray. The expansion shaft 2 can change its own shaft diameter through the operation of a pneumatic or mechanical structure so that it can resist the paper tray. The specific principle and mechanism are prior art and will not be described here. Each expansion shaft 2 is controlled to rotate by a separate motor.

[0053] The rubber roller 3 rotates along its own axis; two opposite plane structures 3a and two opposite curved structures 3b are arranged on the side of the rubber roller 3; adsorption holes 3c are arranged on the curved structure 3b; the rubber roller 3 itself is driven to rotate by a motor;

[0054] The knife roller 4 rotates along its own axis and is connected to the rubber roller 3 through a gear transmission; a cutting knife 4a is provided on the side of the knife roller 4;

[0055] The mounting roller 5 rotates along its own axis and is connected to the rubber roller 3 through gear transmission; a mounting structure 5a for mounting paper is provided on the side of the mounting roller 5;

[0056] The side surface of the installation roller 5 and the side surface of the knife roller 4 are both tangent to the curved surface structure 3b;

[0057] The tension mechanism 6 is arranged between the discharge tray 1 and the rubber roller 3. The tension mechanism 6 usually includes a tension roller and an elastic mechanism connected to the tension roller. When in use, the paper will pass through the tension roller, so that the paper is tightened by the elastic mechanism. Its specific principle and mechanism are prior art and will not be repeated here.

[0058] The specific working principle of this transport device is as follows: Figure 2~3As shown, the two expansion shafts 2 closest to the rubber roller 3 are set as the waiting area and the discharging area in the upper and lower order; the expansion shaft 2 farthest from the rubber roller 3 is set as the material changing area. The paper in the discharging area (the solid line part in the figure) will first pass through the tension mechanism 6, and then pass between the rubber roller 3 and the knife roller 4, and then be connected to the printing equipment for printing. The paper in the waiting area for discharging (the dotted line part in the figure) is pulled out and passed between the rubber roller 3 and the knife roller 4, and must be above the paper in the discharging area, and then the paper in the waiting area for discharging is fixed on the mounting structure 5a of the mounting roller 5. Cut the tape into the required width, and then place it on the curved surface structure 3b of the rubber roller 3 close to the knife roller 4, and absorb the tape through the adsorption hole 3c.

[0059] When the paper in the discharge area is running out, Figures 4 and 5 As shown, the rubber roller 3 is controlled to start rotating, and the knife roller 4 and the installation roller 5 will also rotate. As the rubber roller 3 rotates, the curved surface structure 3b of the rubber roller 3 will fit with the knife roller 4 to clamp the paper in the discharge area and the paper in the waiting discharge area, and then the cutter on the knife roller 4 will cut the paper in the discharge area and the paper in the waiting discharge area during the rotation process. When cutting, Figures 6 and 7 As shown, the paper in the discharge area on the left side of the cutting position will be quickly drawn away under the action of the tension mechanism 6, while the paper in the to-be-discharged area on the left side of the cutting position will remain and stick to the adhesive tape as it rotates because there is no tension mechanism 6; the paper in the discharge area on the right side of the cutting position will stick to the adhesive tape before, while the paper in the to-be-discharged area on the right side of the cutting position will be rolled up onto the installation roller 5 as the installation roller 5 rotates; finally, the rubber roller 3 rotates to the position shown in FIG. Figures 8 and 9 The position shown in the figure makes the curved surface structure 3b horizontal, and the distance between the rubber roller 3 and the knife roller 4 is freed up again. Then the material discharging tray 1 starts to rotate, as shown in the figure. Fig.10 As shown, the waiting area is turned to the discharging area. As the unloading tray 1 rotates, the paper in the waiting area will press against the tension mechanism 6, so that the paper is tightened again. At the same time, the waste turntable will be turned to the material replacement area for replacement, and the new material tray originally installed in the material replacement area will also rotate to the waiting area. After that, the new paper in the waiting area can be installed according to the previous installation method, and the new paper in the discharging area is responsible for supplying paper to the printing equipment until it is used up and the next material replacement is performed.

[0060] Preferably, an adjustment roller group 7 is also provided in the transport device. The adjustment roller group 7 is provided on the side of the rubber roller 3 away from the discharge tray 1, and the adjustment roller group 7 moves toward and away from the rubber roller 3 in the horizontal direction. The movement of the adjustment roller group 7 can be realized by a screw slider structure. The adjustment roller group 7 includes two vertically distributed rollers, the two rollers are in contact with each other, and the paper passes between the two rollers. By moving the adjustment roller group 7, in the normal feeding and the early stage of automatic material change, the adjustment roller group 7 is moved close to the rubber roller 3, which can effectively ensure the support of the paper; and after the rubber roller 3 starts to rotate, the rubber roller 3 will lift the paper upward. At this time, the adjustment roller group 7 needs to be away from the rubber roller 3 to make the paper corresponding to the rubber roller 3 more easily deformed.

[0061] Preferably, a first intermediate roller 8 and a positioning roller group 9 are sequentially arranged on the side of the adjustment roller group 7 away from the knife roller 4; the positioning roller group 9 is higher than the adjustment roller group 7, and the first intermediate roller 8 is higher than the positioning roller group 9; the positioning roller group 9 includes two vertically distributed rollers, the two rollers are in contact with each other, and the paper passes between the two rollers. Under this structure, the first intermediate roller 8 can form a larger wrap angle for the paper, thereby further flattening the paper; the first intermediate roller 8 can also cooperate with the adjustment roller group 7, and when the adjustment roller group 7 moves, the length of the paper can change relatively smoothly.

[0062] Preferably, the knife roller 4 and the installation roller 5 are symmetrically arranged on both sides of the rubber roller 3, and there is a gap between the knife roller 4 and the installation roller 5. When the rubber roller 3 rotates, Figure 5 As shown, the top of the curved structure 3b will extend between the knife roller 4 and the installation roller 5 before it can contact with the knife roller 4 and the installation roller 5. At this time, the curved structure 3b can lift the paper upward to ensure that the paper here can be taut, and the knife roller 4 and the installation roller 5 can cooperate with the rubber roller 3 to clamp the paper to avoid wrinkles or skewness of the paper during cutting.

[0063] Since the knife roller 4 and the installation roller 5 need to be able to ensure that they are in contact with the rubber roller 3 to achieve the above-mentioned function, a first vertically sliding adjustment block 10 can be set at both ends of the knife roller 4, and a second vertically sliding adjustment block 11 can be set at both ends of the installation roller 5. A plurality of rotating threaded rods are set on the frame, so that each threaded rod is screwed into a corresponding first adjustment block 10 or second adjustment block 11. In this way, the positions of the first adjustment block 10 and the second adjustment block 11 can be controlled by rotating the threaded rod, thereby ensuring the contact and the strength of the contact.

[0064] It is preferred to set the radius of the curved surface structure 3b of the rubber roller 3 to R, the radius of the knife roller 4 and the installation roller 5 to be the same, both r, and R=2·r; the rotation ratio of the rubber roller 3 to the knife roller 4 is 2; the rotation ratio of the rubber roller 3 to the installation roller 5 is 2. Under the above settings, it can be ensured that after the rubber roller 3 rotates half a circle, the knife roller 4 and the installation roller 5 both rotate one circle, so that after each material change, the stop position of the knife roller 4 and the installation roller 5 will be maintained at a fixed angle, so that personnel can operate at a fixed position.

[0065] The mounting structure 5a of the mounting roller 5 is preferably arranged on a side away from the knife roller 4, so as to facilitate the operation of personnel, and allow the paper to be partially wrapped on the mounting roller 5 first, to ensure the subsequent smooth winding. The mounting structure 5a can adopt a long mounting plate structure, and the mounting plate is fixed to the mounting roller 5 by screws. By loosening the screws to form a gap between the mounting plate and the mounting roller 5, the end of the paper is inserted into the gap and then the screws are tightened to clamp the paper.

[0066] Preferably, a second intermediate roller 12 is further provided between the discharge tray 1 and the knife roller 4. The paper extending from the area to be discharged must pass under the second intermediate roller 12 and abut against the second intermediate roller 12. The second intermediate roller 12 makes the part of the paper in the area to be discharged between the discharge tray and the knife roller 4 form an angle shape with an opening upward, so as to ensure that the paper in the area to be discharged is tightened. If necessary, the second intermediate roller 12 can be set to the same structure as the tension mechanism 6 to provide tension for the paper.

[0067] The present invention also relates to a working method of a decorative paper printing transport device, which is used for the above decorative paper printing transport device, and the steps include:

[0068] S10: Perform initialization settings, so that a plane structure 3a of the rubber roller 3 faces the knife roller 4; set the two expansion shafts 2 closest to the rubber roller 3 as the material waiting area and the material discharging area in an up-down order; set the expansion shaft 2 farthest from the rubber roller 3 as the material changing area; and then install paper trays on each expansion shaft 2;

[0069] S20: Pull the paper out of the discharging area and pass it through between the knife roller 4 and the rubber roller 3 to start the paper transportation operation;

[0070] S30: Pull the paper in the unloading area out through between the knife roller 4 and the rubber roller 3, with the paper in the unloading area above the paper in the unloading area, and then fix the end of the paper in the unloading area on the mounting roller 5; through the adsorption effect of the adsorption hole 3c of the rubber roller 3, stick the adhesive tape on the curved surface structure 3b of the rubber roller 3, with the adhesive side facing outwards;

[0071] S40: When the paper in the discharge area is almost used up, the rubber roller 3 rotates 180 degrees, and the knife roller 4 and the installation roller 5 rotate simultaneously with the rotation of the rubber roller 3. During the rotation, the cutter 4a of the knife roller 4 will cut the paper in the discharge area and the paper in the waiting discharge area evenly, and the adhesive tape will stick to the ends of the paper in the discharge area and the paper in the waiting discharge area to connect them into one;

[0072] S50: The material discharging tray 1 rotates to transfer the material discharging area to the material discharging area, the material discharging area to the material changing area, and the material changing area to the material discharging area;

[0073] S60: Replace the new material tray in the material changing area;

[0074] S70: Repeat S30 to S60 to achieve continuous transmission of paper.

[0075] Preferably, the decorative paper printing transport device further comprises an adjustment roller set 7;

[0076] In step S40: during the rotation of the rubber roller 3, the adjustment roller set 7 will move away from the rubber roller 3;

[0077] In step S40 : during the rotation of the unloading tray 1 , the adjusting roller set 7 will move toward the rubber roller 3 .

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A conveying device for decorative paper printing, characterized in that: include: The material discharging plate (1) rotates along its own axis; A plurality of expansion shafts (2) are evenly distributed around the discharge tray (1), and each expansion shaft (2) is rotatably mounted on the discharge tray (1) and is used to place the paper tray; The rubber roller (3) rotates along its own axial direction; two opposite plane structures (3a) and two opposite curved surface structures (3b) are arranged on the side of the rubber roller (3); and adsorption holes (3c) are arranged on the curved surface structures (3b); The knife roller (4) rotates along its own axial direction and is drivingly connected to the rubber roller (3); a cutting knife (4a) is arranged on the side of the knife roller (4); The mounting roller (5) rotates along its own axial direction and is drivingly connected to the rubber roller (3); a mounting structure (5a) for mounting paper is arranged on the side of the mounting roller (5); The side surface of the installation roller (5) and the side surface of the knife roller (4) are both tangent to the curved surface structure (3b); A tension mechanism (6), arranged between the discharge tray (1) and the rubber roller (3), and used for tightening the paper; When working, the two expansion shafts (2) closest to the rubber roller (3) are respectively set as the material waiting area and the material discharging area in an upper and lower order; The paper in the discharge area first passes through the tension mechanism (6), then passes between the knife roller (4) and the rubber roller (3), and then is connected to the printing device; The paper in the unloading area first passes between the knife roller (4) and the rubber roller (3), with the paper in the unloading area above the paper in the unloading area, and then the end of the paper in the unloading area is fixed on the mounting roller (5).

2. The decorative paper printing transport device according to claim 1, characterized in that: It also includes an adjustment roller group (7); the adjustment roller group (7) is arranged on a side of the rubber roller (3) away from the discharge tray (1), and the adjustment roller group (7) moves towards and away from the rubber roller (3) in the horizontal direction; the adjustment roller group (7) includes two vertically distributed rollers.

3. The decorative paper printing transport device according to claim 2, characterized in that: A first intermediate roller (8) and a positioning roller group (9) are sequentially arranged on the side of the adjustment roller group (7) away from the knife roller (4); the positioning roller group (9) is higher than the adjustment roller group (7), and the first intermediate roller (8) is higher than the positioning roller group (9); the positioning roller group (9) includes two vertically distributed rollers.

4. The decorative paper printing transport device according to claim 1, characterized in that: The knife roller (4) and the installation roller (5) are symmetrically arranged on both sides of the rubber roller (3), and there is a gap between the knife roller (4) and the installation roller (5).

5. The decorative paper printing transport device according to claim 1, characterized in that: First adjustment blocks (10) that slide vertically are arranged at both ends of the knife roller (4); and second adjustment blocks (11) that slide vertically are arranged at both ends of the installation roller (5).

6. The decorative paper printing transport device according to claim 1, characterized in that: The radius of the curved surface structure (3b) of the rubber roller (3) is R, the radii of the knife roller (4) and the installation roller (5) are the same, both r, and R=2·r; the rotation ratio of the rubber roller (3) to the knife roller (4) is 2; and the rotation ratio of the rubber roller (3) to the installation roller (5) is 2.

7. The decorative paper printing transport device according to claim 6, characterized in that: The mounting structure (5a) of the mounting roller (5) is arranged on a side away from the knife roller (4).

8. The decorative paper printing transport device according to claim 1, characterized in that: A second intermediate roller (12) is also provided between the discharge tray (1) and the knife roller (4).

9. A method for operating a conveying device for decorative paper printing, characterized in that: The decorative paper printing transport device according to any one of claims 1 to 8 comprises the following steps: S10: Performing initialization settings so that a plane structure (3a) of the rubber roller (3) faces the knife roller (4); setting the two expansion shafts (2) closest to the rubber roller (3) as the material waiting area and the material discharging area in an up-down order; setting the expansion shaft (2) farthest from the rubber roller (3) as the material changing area; and then installing a paper material tray on each expansion shaft (2); S20: Pull the paper out of the discharging area and pass it through between the knife roller (4) and the rubber roller (3), and start the paper transportation operation; S30: Pull the paper in the area to be discharged through between the knife roller (4) and the rubber roller (3), with the paper in the area to be discharged above the paper in the discharge area, and then fix the end of the paper in the area to be discharged on the mounting roller (5); through the adsorption effect of the adsorption hole (3c) of the rubber roller (3), stick the adhesive tape on the curved surface structure (3b) of the rubber roller (3), with the adhesive side facing outwards; S40: When the paper in the discharge area is almost used up, the rubber roller (3) rotates 180 degrees, and the knife roller (4) and the installation roller (5) rotate simultaneously with the rotation of the rubber roller (3). During the rotation, the cutter (4a) of the knife roller (4) will cut the paper in the discharge area and the paper in the waiting discharge area flush, and the adhesive tape will stick to the ends of the paper in the discharge area and the paper in the waiting discharge area to connect them into one; S50: the unloading tray (1) rotates so that the material-to-be-discharged area is transferred to the material-discharging area, the material-discharging area is transferred to the material-changing area, and the material-changing area is transferred to the material-to-be-discharged area; S60: Replace the new material tray in the material changing area; S70: Repeat S30 to S60 to achieve continuous transmission of paper.

10. The working method of the decorative paper printing transport device according to claim 9, characterized in that: The decorative paper printing transport device further comprises an adjustment roller group (7); In step S40: during the rotation of the rubber roller (3), the adjustment roller group (7) moves away from the rubber roller (3); In step S40: during the rotation of the discharge tray (1), the adjustment roller set (7) will move towards the rubber roller (3).

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