A paper coloring apparatus for colored paper

Abstract

The utility model discloses a kind of non-color papermaking coloring equipment, it is related to papermaking equipment technical field, including coloring tank, the inside of coloring tank is provided with spraying assembly, coloring tank both sides middle part is uniformly provided with paper in-out slot, each the paper in-out slot upside is uniformly provided with one tensioning assembly;The tensioning assembly includes fixing frame, the fixing frame is provided with two and symmetrically arranged, each the fixing frame upper surface is uniformly penetrated and provided with one through slot, each the through slot is slidably provided with one lifting plate, each the lifting plate upper end is arrayed and penetrated and provided with a plurality of buckle holes, each the fixing frame one side is uniformly provided with one buckle assembly, the utility model is provided with tensioning assembly, can guarantee that paper always keeps steady and constant tension in spraying area, effectively eliminates the code blur and ghosting phenomenon caused by jitter.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically a colored paper coloring device. Background Technology

[0002] In modern papermaking, in addition to basic dyeing processes, it is sometimes necessary to perform localized and precise coloring and information marking on the surface of the finished paper. This step is called inkjet coding. This process uses non-contact inkjet equipment to digitally spray functional inks of specific colors onto the paper surface to print product batch numbers, production dates, variable barcodes, or company logos in real time.

[0003] A patent with publication number CN221918766U discloses a paper coloring and coding device, "including a box and a shell, with a coloring mechanism installed on the upper part of the box and an adjustment mechanism installed on the upper part of the coloring mechanism." This utility model relates to the technical field of paper coloring and coding. The paper to be colored and coded is inserted into an opening at one end of the box, passes over the upper surface of the second roller and the platform, and exits from an opening at the other end of the box, connecting to a winding device. Then, the pump is activated, and the pump can draw out the dye stored in the lower part of the box through a second pipe, discharge the dye into a third pipe through a first pipe, and finally spray it out through several spray heads. However, this device does not add a tensioning component to the paper movement mechanism. During the paper conveying process, from the feeding roll to the winding, the diameter of the roll changes continuously, which can cause the paper to become loose or overstretched during the conveying process, resulting in printing ghosting, blurring, or paper breakage, affecting production.

[0004] Based on this, a colored paper making and coloring device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a colored paper making and coloring device to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A colored paper making and coloring device includes a coloring box, a spraying component is provided inside the coloring box, and paper inlet and outlet slots are provided in the middle of both sides of the coloring box. A tensioning component is provided on the upper side of each paper inlet and outlet slot. The tensioning assembly includes a fixing frame, two of which are symmetrically arranged. Each fixing frame has a through slot on its upper surface, and a lifting plate is slidably arranged in each through slot. Each lifting plate has a plurality of buckle holes arranged in an array at its upper end. Each fixing frame has a buckle assembly on one side. Limiting grooves are formed on adjacent sides of the lower ends of the two lifting plates. A tensioning roller is arranged between the lower ends of the two lifting plates. A rotating rod is rotatably connected to the middle of both ends of the tensioning roller. The rotating rod is slidably arranged inside the adjacent limiting groove. A spring column is provided at the upper end of the rotating rod, and the upper end of the spring column is fixedly connected to the top of the limiting groove.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative embodiment: the buckle assembly includes a buckle box, which is fixedly connected to one side of the fixing frame. A push plate is provided on one side of the buckle box, and a buckle post is fixedly connected to one side of the push plate. A first spring is fixedly connected to the other side of the push plate. A pull rod is provided on the outside of the buckle box. The pull rod is U-shaped, and both ends of the pull rod pass through one side of the buckle box and are fixedly connected to one side of the adjacent push plate.

[0008] In one alternative embodiment: the spring column includes a spring column base, a spring column slide rod is slidably disposed on the upper end of the spring column base, and a second spring is disposed between the spring column slide rod and the spring column base.

[0009] In one alternative: an auxiliary roller is rotatably arranged at both ends of the coloring box, and several support rollers are rotatably arranged in the middle of the coloring box.

[0010] In one alternative: the upper surfaces of all the auxiliary rollers and support rollers are arranged on the same horizontal plane.

[0011] In one alternative embodiment: the spraying assembly includes a spray box, which is fixedly connected to the middle of the upper surface of the coloring box. A sprayer is disposed in the middle of the coloring box. A hose is fixedly connected to the input end of the sprayer. The upper end of the hose is fixedly connected to the bottom of the spray box. Several nozzles are fixedly connected to the output end of the sprayer.

[0012] In one alternative: several electric lifting columns are fixedly connected to the top of the coloring box, and the lower end of the electric lifting columns is fixedly connected to the upper surface of the sprayer.

[0013] In one alternative: several support legs are fixedly connected around the lower surface of the coloring box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a tensioning assembly consisting of an adjustable lifting plate and a tensioning roller with a built-in buffer mechanism. Its first advantage lies in its ability to quickly achieve initial positioning. By manually lifting the lifting plate and utilizing the locking pins in the locking assembly with locking holes of different heights, the tensioning roller can be quickly adjusted to a suitable initial pre-tension position to accommodate paper of varying thicknesses or initial tensions. The second advantage is its automatic fine-tuning and buffering capabilities. During operation, when the paper tension changes instantaneously, the tensioning roller can slide within the limiting groove via rotating rods at both ends, compressing or releasing the second spring within the spring column. This elastic structure instantly absorbs vibration and compensates for tension fluctuations, ensuring the paper maintains a stable and constant tension in the spraying area, effectively eliminating blurry and ghosting caused by vibration. This purely mechanical structure achieves the core function of automated tension control, effectively improving the quality of inkjet printing and the stability of the production line, while also offering advantages such as low cost, high reliability, and easy maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the spraying component structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the tensioning component structure of this utility model.

[0019] Figure 5 This is an exploded view of the tensioning component structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the spring column structure of this utility model.

[0021] Figure label annotations: 1. Coloring box; 2. Support leg; 3. Spray box; 4. Paper feed slot; 5. Auxiliary roller; 6. Support roller; 7. Sprayer; 8. Electric lifting column; 9. Spray head; 10. Fixing frame; 11. Lifting plate; 12. Tensioning roller; 13. Snap-in hole; 14. Limiting groove; 15. Through groove; 16. Snap-in box; 17. Snap-in column; 18. Push plate; 19. First spring; 20. Pull rod; 21. Rotating rod; 22. Spring column; 23. Spring column base; 24. Spring column slide bar; 25. Second spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-6 As shown, a colored paper making and coloring device includes a coloring box 1, a spraying component is provided inside the coloring box 1, and paper inlet and outlet slots 4 are provided in the middle of both sides of the coloring box 1. A tensioning component is provided on the upper side of each paper inlet and outlet slot 4. The tensioning assembly includes a fixing frame 10, two of which are symmetrically arranged. Each fixing frame 10 has a through groove 15 through its upper surface. Each through groove 15 has a slidably arranged lifting plate 11. Each lifting plate 11 has a plurality of buckle holes 13 through its upper end. Each fixing frame 10 has a buckle assembly on one side. Each pair of lifting plates 11 has a limit groove 14 on the adjacent lower ends. A tensioning roller 12 is arranged between the lower ends of the two lifting plates 11. A rotating rod 21 is rotatably connected to the middle of each end of the tensioning roller 12. The rotating rod 21 is slidably arranged inside the adjacent limit groove 14. A spring column 22 is arranged at the upper end of the rotating rod 21. The upper end of the spring column 22 is fixedly connected to the top of the limit groove 14. In this embodiment, the paper enters from the paper inlet / outlet slot 4 on one side and passes under the tension roller 12. The fixing frame 10 provides support for the entire assembly. The operator can manually lift or press down the two lifting plates 11 as needed, so that they slide in the through slot 15 of the fixing frame 10, thereby coarsely adjusting the height of the tension roller 12. The elasticity of the spring column 22 acts on the rotating rod 21, providing a continuous downward tension to the tension roller 12. When the paper slackens during operation, the spring column 22 will push the tension roller 12 down to automatically tighten the paper. When the paper is momentarily too tight, the tension roller 12 can overcome the spring force and move upward to avoid paper breakage. The sliding structure of the rotating rod 21 in the limiting slot 14 ensures that the tension roller 12 can float up and down, and also prevents it from detaching.

[0024] In one embodiment, such as Figure 5As shown, the buckle assembly includes a buckle box 16, which is fixedly connected to one side of the fixing frame 10. A push plate 18 is provided inside the buckle box 16 on one side, and a buckle post 17 is fixedly connected to one side of the push plate 18. A first spring 19 is fixedly connected to the other side of the push plate 18. A pull rod 20 is provided on the outside of the buckle box 16. The pull rod 20 is U-shaped, and both ends of the pull rod 20 pass through one side of the buckle box 16 and are fixedly connected to one side of the adjacent push plate 18. When it is necessary to adjust the height of the lifting plate 11... The operator pulls the U-shaped lever 20 outward, which causes the two push plates 18 to compress the first spring 19, thereby causing the latching post 17, which is fixed to the push plate 18, to disengage from the latching hole 13 of the lifting plate 11. At this time, the lifting plate 11 can be raised and lowered freely. After adjusting to a suitable height, the lever 20 is released. Under the reset action of the first spring 19, the latching post 17 will re-engage into the corresponding latching hole 13, thus achieving reliable locking of the lifting plate 11. The latching box 16 provides installation and protection space for the entire latching mechanism.

[0025] In one embodiment, such as Figure 6 As shown, the spring column 22 includes a spring column base 23, with a spring column slide rod 24 slidably disposed on the upper end of the spring column base 23. A second spring 25 is disposed between the spring column slide rod 24 and the spring column base 23. When the tension roller 12 is subjected to an upward force from the paper, it will press the spring column top rod 24 downward through the rotating rod 21, compressing the second spring 25 inside. At this time, the spring column 22 absorbs energy and acts as a buffer. When the paper tension decreases, the compressed second spring 25 releases potential energy, pushing the spring column top rod 24 to return to its original position, and then pushing the tension roller 12 downward through the rotating rod 21 to tighten the paper again. The sliding cooperation between the spring column base 23 and the spring column top rod 24 ensures smooth and stable movement.

[0026] In one embodiment, such as Figure 3 As shown, an auxiliary roller 5 is rotatably installed at both ends of the coloring box 1, and several support rollers 6 are rotatably installed in the middle of the coloring box 1 to maintain the balance of paper transport.

[0027] In one embodiment, such as Figure 3 As shown, the upper surfaces of all the auxiliary rollers 5 and support rollers 6 are set on the same horizontal plane, which facilitates spraying.

[0028] In one embodiment, such as Figure 3As shown, the spraying assembly includes a spray tank 3, which is fixedly connected to the middle of the upper surface of the coloring tank 1. A sprayer 7 is arranged in the middle of the coloring tank 1. A hose is fixedly connected to the input end of the sprayer 7. The upper end of the hose is fixedly connected to the bottom of the spray tank 3. Several nozzles 9 are fixedly connected to the output end of the sprayer 7. The spray tank 3 stores colorant or ink. The colorant is transported from the spray tank 3 to the sprayer 7 through the hose and finally sprayed evenly onto the paper surface passing below by several nozzles 9 arranged in an array.

[0029] In one embodiment, such as Figure 3 As shown, several electric lifting columns 8 are fixedly connected to the top of the coloring box 1. The lower end of the electric lifting column 8 is fixedly connected to the upper surface of the sprayer 7. The sprayer 7 can be raised and lowered as a whole under the drive of the electric lifting column 8 to adjust the distance between the nozzle 9 at its output end and the paper surface. This is to adapt to different coding requirements or paper thicknesses and ensure the best spraying effect.

[0030] In one embodiment, such as Figure 1 As shown, several support legs 2 are fixedly connected around the lower surface of the coloring box 1 to provide support.

[0031] The above embodiment discloses a colored paper coloring device. Paper enters from the paper inlet / outlet slot 4 on one side of the device, passes sequentially through a horizontal conveying surface formed by auxiliary rollers 5 and support rollers 6, and then exits from the paper inlet / outlet slot 4 on the other side. Before entering and leaving the coloring box 1, the paper passes around the tension rollers 12 in the tensioning components on both sides. The operator first releases the lock by pulling out the latching assembly lever 20 according to the paper type, manually adjusts the height of the lifting plate 11 on the fixed frame 16 to set an initial pre-tight position for the tension rollers 12, and then releases the lever 20 so that the latching post 17, under the action of the first spring 19 in the latching assembly, engages with the latching hole 13 of the lifting plate 11 to complete the coarse adjustment and locking. During device operation, the paper tension is monitored in real time. During this process, the tension roller 12 can be automatically fine-tuned with the cooperation of the rotating rods 21 and spring columns 22 at both ends: when the paper is loose, the second spring 25 inside the spring column 22 pushes the spring column top rod 24, causing the rotating rod 21 to press down the tension roller 12 to tighten the paper; when the paper is too tight, the tension overcomes the spring force, causing the tension roller 12 to move upward, and the spring column 22 is compressed to buffer the overload. This process ensures that the paper maintains a constant and stable tension when passing through the spraying area. At the same time, the controller controls the electric lifting column 8 to adjust the height of the sprayer 7 so that the nozzle 9 is at the optimal working distance. The colorant in the spray box 3 is delivered to the sprayer 7 via a soft pump, and finally the nozzle 9 performs precise and uniform coloring or coding operations on the paper running smoothly below.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A colored paper making and coloring device, comprising a coloring box (1), wherein a spraying component is provided inside the coloring box (1), and paper inlet and outlet slots (4) are provided in the middle of both sides of the coloring box (1), and a tensioning component is provided on the upper side of each paper inlet and outlet slot (4); Its features are, The tensioning assembly includes a fixing frame (10), two fixing frames (10) are provided and symmetrically arranged. Each fixing frame (10) has a through groove (15) through its upper surface. Each through groove (15) has a sliding lifting plate (11). Each lifting plate (11) has a number of buckle holes (13) through its upper end. Each fixing frame (10) has a buckle assembly on one side. Each of the two lifting plates (11) has a limit groove (14) on the adjacent side of its lower end. A tensioning roller (12) is provided between the lower ends of the two lifting plates (11). A rotating rod (21) is rotatably connected to the middle of both ends of the tensioning roller (12). The rotating rod (21) is slidably arranged inside the adjacent limit groove (14). A spring column (22) is provided at the upper end of the rotating rod (21). The upper end of the spring column (22) is fixedly connected to the top of the limit groove (14).

2. The colored paper making and coloring equipment according to claim 1, characterized in that, The buckle assembly includes a buckle box (16), which is fixedly connected to one side of the fixing frame (10). A push plate (18) is provided on one side of the buckle box (16), and a buckle post (17) is fixedly connected to one side of the push plate (18). A first spring (19) is fixedly connected to the other side of the push plate (18). A pull rod (20) is provided on the outside of the buckle box (16). The pull rod (20) is U-shaped, and both ends of the pull rod (20) pass through one side of the buckle box (16) and are fixedly connected to one side of the adjacent push plate (18).

3. The colored paper making and coloring equipment according to claim 1, characterized in that, The spring column (22) includes a spring column base (23), a spring column slide rod (24) is slidably disposed on the upper end of the spring column base (23), and a second spring (25) is disposed between the spring column slide rod (24) and the spring column base (23).

4. The colored paper making and coloring equipment according to claim 1, characterized in that, An auxiliary roller (5) is rotatably installed at both ends of the coloring box (1), and several support rollers (6) are rotatably installed in the middle of the coloring box (1).

5. The colored paper making and coloring equipment according to claim 4, characterized in that, All of the auxiliary rollers (5) and support rollers (6) have their upper surfaces set on the same horizontal plane.

6. The colored paper making and coloring equipment according to claim 1, characterized in that, The spraying assembly includes a spray box (3), which is fixedly connected to the middle of the upper surface of the coloring box (1). A sprayer (7) is provided in the middle of the coloring box (1). A hose is fixedly connected to the input end of the sprayer (7). The upper end of the hose is fixedly connected to the bottom of the spray box (3). Several nozzles (9) are fixedly connected to the output end of the sprayer (7).

7. The colored paper making and coloring equipment according to claim 1, characterized in that, Several electric lifting columns (8) are fixedly connected to the top of the coloring box (1), and the lower end of the electric lifting column (8) is fixedly connected to the upper surface of the sprayer (7).

8. The colored paper making and coloring equipment according to claim 1, characterized in that, The coloring box (1) has several support legs (2) fixedly connected around its lower surface.

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