Paper cutting machine for advertising board printing

Abstract

The utility model discloses a paper cutter for billboard printing, which relates to the technical field of billboard printing and comprises a cutting table, a lifting table capable of moving up and down is arranged on the cutting table, and a cutting blade for cutting paper is arranged on the bottom surface of the lifting table. A limiting assembly is arranged on the lifting table and comprises a pressing plate capable of moving up and down along with the lifting table, and a first rubber pad is arranged on the bottom face of the pressing plate. According to the coated paper cutting device, the first rubber pad on the pressing plate is matched with the second rubber pad on the cutting table, coated paper is pre-fixed before the cutting blade descends, the problem of off tracking of the coated paper in the cutting process is effectively avoided, meanwhile, due to the fact that the first rubber pad and the second rubber pad are both made of flexible materials, the coated paper is not prone to falling off, and the cutting efficiency is improved. Coated paper can be protected against damage caused by too large pressure in the pre-tightening and clamping process, and the cutting quality and the paper utilization rate are improved.

Description

Technical Field

[0001] This utility model belongs to the field of billboard printing technology, specifically a paper cutter for billboard printing. Background Technology

[0002] Coated paper, with its smooth and delicate surface, excellent ink absorption, and outstanding color reproduction, occupies a pivotal position in the advertising printing industry. It not only accurately presents every detail of the advertising design but also greatly enhances the visual appeal and communication effect of advertisements through rich color combinations and high-definition image display. In the production of billboards, coated paper is often used as an important printing medium. Whether it's large outdoor billboards or indoor display advertisements, coated paper adds significantly to the advertising content with its superior quality. However, in the production process of coated paper printing advertisements, the paper cutting stage, as a crucial step connecting printing and subsequent processing, directly affects the overall effect of the finished advertisement through its precision and quality.

[0003] Currently, although there are various paper cutting devices on the market for cutting coated paper, these devices still reveal many shortcomings in practical applications. On the one hand, many paper cutters lack an effective pre-fixing mechanism during the cutting process, which makes the coated paper prone to deviation during cutting, thus affecting the cutting accuracy and paper utilization rate, and increasing production costs. On the other hand, the existing paper cutter's feeding method relies on manual feeding, which is often not precise or smooth enough, making it difficult to ensure that the distance of each piece of coated paper fed out is consistent, resulting in the coated paper being of inconsistent sizes after cutting, which brings great inconvenience to subsequent advertising printing operations. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model proposes a paper cutter for billboard printing.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A paper cutter for printing billboards includes a cutting table, a lifting platform that can move up and down on the cutting table, and a cutting blade for cutting paper on the bottom surface of the lifting platform.

[0007] Furthermore, a limit component is provided on the lifting platform, the limit component includes a pressure plate that can move up and down with the lifting platform, and a rubber pad is provided on the bottom surface of the pressure plate.

[0008] As a further preferred embodiment of this technical solution: the lifting platform is connected to a sliding shaft via a connecting seat, and the pressure plate is slidably connected to the sliding shaft, with a spring sleeved on the sliding shaft and arranged between the connecting seat and the pressure plate.

[0009] As a further preferred embodiment of this technical solution, the height of the pressure plate arrangement is lower than the height of the cutting blade.

[0010] As a further preferred embodiment of this technical solution: the cutting table is also provided with a second rubber pad that works in conjunction with the first rubber pad, and the cutting table is provided with guide holes arranged on both sides of the second rubber pad for the sliding shaft to pass through.

[0011] As a further preferred embodiment of this technical solution: the cutting table is also provided with a feeding mechanism, which includes two rotatable conveying rollers arranged in parallel, and each conveying roller has a number of rubber protrusions evenly distributed on its outer surface.

[0012] As a further preferred embodiment of this technical solution: the cutting table is also provided with guide components arranged on both sides of the feeding mechanism;

[0013] Each set of guide components includes two movable blocks, and a slide bar and a limiting sleeve disposed between the two movable blocks.

[0014] As a further preferred embodiment of this technical solution: the cutting table is also provided with a threaded block, the threaded block has a threaded hole, and the threaded hole is internally threaded with a threaded rod for driving the movable block to move.

[0015] As a further preferred embodiment of this technical solution: the cutting table is provided with a second sliding groove corresponding to the arrangement below multiple movable blocks.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the No. 1 rubber pad on the pressure plate and the No. 2 rubber pad on the cutting table cooperate to pre-fix the coated paper before the cutting blade descends, which effectively avoids the problem of the coated paper deviating during the cutting process. At the same time, since both the No. 1 and No. 2 rubber pads are made of flexible materials, they can protect the coated paper from damage caused by excessive pressure during the pre-tightening and clamping process, thereby improving the cutting quality and paper utilization rate.

[0018] 2. In this utility model, the coated paper is intermittently and automatically fed by the conveyor roller. The distance of the coated paper fed each time is more precise, which ensures that the size of the cut coated paper is uniform and facilitates subsequent advertising printing operations. At the same time, the rubber protrusions on the outer surface of the conveyor roller increase the friction between it and the paper, making the feeding smoother.

[0019] 3. In this utility model, guide components are provided on both sides of the feeding mechanism, and the limiting sleeve is fitted on the top of the coated paper, which effectively avoids the problem of the coated paper bending and curling during the conveying process. At the same time, by adjusting the position of the movable block, it is further ensured that the coated paper can be conveyed straight to the cutting area, thereby improving the cutting accuracy and stability. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0024] Figure 5 This is a partial three-dimensional structural diagram of the present invention. Figure 3 .

[0025] Legend: 1. Cutting table; 2. Fixed frame No. 1; 3. Slide No. 1; 4. Lifting platform; 5. Cutting blade; 6. Connecting seat; 7. Slide shaft; 8. Pressure plate; 9. Rubber pad No. 1; 10. Spring; 11. Rubber pad No. 2; 12. Guide hole; 13. Fixed frame No. 2; 14. Rotating shaft; 15. Belt drive assembly; 16. Conveying roller; 17. Rubber protrusion; 18. Threaded block; 19. Threaded rod; 20. Movable block; 21. Slide rod; 22. Limiting sleeve; 23. Slide No. 2. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1:

[0028] Please see Figures 1-5This application provides a paper cutter for billboard printing, including a cutting table 1. The cutting table 1 is equipped with a lifting platform 4 that can move up and down. Specifically, the cutting table 1 is equipped with a first fixed frame 2, and the first fixed frame 2 is equipped with a first sliding groove 3 for the lifting platform 4 to slide. The lifting platform 4 is driven to move up and down along the Y-axis by a driving component, preferably a cylinder. The lifting platform 4 is connected to the output end of the cylinder to provide a power source. The bottom surface of the lifting platform 4 is equipped with a cutting blade 5 for cutting paper. The lifting platform 4 is equipped with a limiting component, which includes a pressure plate 8 that can move up and down with the lifting platform 4. The bottom surface of the pressure plate 8 is equipped with a first rubber pad 9 to avoid excessive pressure on the coated paper, which could lead to damage to the coated paper.

[0029] In this embodiment, the lifting platform 4 is connected to the sliding shaft 7 via the connecting seat 6, and the pressure plate 8 is slidably connected to the sliding shaft 7. The sliding shaft 7 is fitted with a spring 10 arranged between the connecting seat 6 and the pressure plate 8, which allows the cutting blade 5 to continue to descend during the process of the pressure plate 8 pre-fixing the coated paper, while the pressure plate 8 presses on the upper surface of the coated paper.

[0030] In this embodiment, the height of the pressure plate 8 is lower than the height of the cutting blade 5, so that the coated paper can be pre-fixed by the pressure plate 8 before the cutting blade 5 cuts, thus avoiding deviation.

[0031] In this embodiment, the cutting table 1 is also provided with a second rubber pad 11 that works in conjunction with the first rubber pad 9. The first rubber pad 9 clamps and limits the upper surface of the coated paper, while the second rubber pad 11 is located on the bottom surface of the coated paper. Both are made of flexible rubber, so the coated paper is protected from damage caused by excessive pressure during pre-tightening and clamping. The cutting table 1 is provided with guide holes 12 arranged on both sides of the second rubber pad 11 for the sliding shaft 7 to pass through. After the first rubber pad 9 on the pressure plate 8 is attached to the coated paper, it provides space for the sliding shaft 7 to descend.

[0032] The specific operating steps of this embodiment are as follows: When the lifting platform 4 moves the cutting blade 5 downward to cut the coated paper used for printing advertisements, the lifting platform 4 moves the pressure plate 8 downward synchronously. The height of the pressure plate 8 is lower than the height of the cutting blade 5. Therefore, the first rubber pad 9 and the second rubber pad 11 on the bottom surface of the pressure plate 8 cooperate to first limit and fix the coated paper to ensure that the coated paper will not move. As the cutting blade 5 descends, the spring 10 is compressed and, under the action of its elasticity, clamps the coated paper more tightly until the cutting blade 5 falls and cuts the coated paper.

[0033] Example 2:

[0034] Based on Embodiment 1, the cutting table 1 is further provided with a feeding mechanism, which includes two rotatable conveying rollers 16 arranged in parallel. It should be noted that the outer surface of the conveying rollers 16 is made of a material with a high coefficient of friction, and each conveying roller 16 has several rubber protrusions 17 evenly arranged on its outer surface, which can increase the friction with the paper and make the feeding smoother. Specifically, the cutting table 1 is provided with a second fixing frame 13, and the second fixing frame 13 is rotatably connected to two rotating shafts 14 respectively for transmission connection with the corresponding conveying rollers 16. The two rotating shafts 14 are connected by a belt drive assembly 15, which consists of two pulleys and a belt disposed on the two pulleys. The two pulleys are respectively disposed at the ends of the rotating shafts 14. The second fixing frame 13 is provided with a drive source for driving one of the rotating shafts 14 to rotate, preferably a servo motor.

[0035] The specific operation steps of this embodiment are as follows: the drive source drives one of the rotating shafts 14 to rotate intermittently. When the cutting blade 5 is cutting the coated paper, the connecting seat 6 is in a stopped state, that is, feeding at the same time. The rotating shaft 14 drives the conveying roller 16 to rotate, and pushes the coated paper to move below the cutting blade 5 through the conveying roller 16 and the rubber protrusion 17 on the conveying roller 16. This process can automatically feed the paper, and the distance of the coated paper fed each time is more accurate, so that the size of the cut coated paper is more uniform, which is convenient for subsequent printing of advertisements on the coated paper.

[0036] Example 3:

[0037] Based on Embodiment 2, the cutting table 1 is further provided with guide components arranged on both sides of the feeding mechanism; each set of guide components includes two movable blocks 20, and a slide rod 21 and a limiting sleeve 22 arranged between the two movable blocks 20. It should be noted that there are two slide rods 21, and the limiting sleeve 22 is sleeved on the outside of the two slide rods 21. The limiting sleeve 22 is arranged above the coated paper, which can prevent the coated paper from bending and curling.

[0038] In this embodiment, the cutting table 1 is also provided with a threaded block 18, the threaded block 18 is provided with a threaded hole, and the threaded hole is internally threaded with a threaded rod 19 for driving the movable block 20 to move. The threaded rod 19 is rotatably connected to the movable block 20. It should be noted that the end of the threaded rod 19 is provided with a rotating wheel, which can facilitate the operation of the rotating wheel to rotate the threaded rod 19.

[0039] In this embodiment, the cutting table 1 is provided with a second sliding groove 23 corresponding to the arrangement below the multiple movable blocks 20, which serves as a guide and limit.

[0040] The specific operation steps of this embodiment are as follows: The limiting sleeve 22 is fitted and set above the coated paper, which can prevent the coated paper from bending and curling during the conveying process. By rotating the threaded rod 19, the movable block 20 is driven to slide inside the second slide groove 23 until it is close to the side of the coated paper but not in contact with it, which is a critical state. This allows the coated paper to be conveyed straight to the cutting area, avoiding the problem that the edge of the cut coated paper is also tilted.

[0041] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A paper cutter for billboard printing, comprising a cutting table (1), characterized in that: The cutting table (1) is provided with a lifting platform (4) that can move up and down, and the bottom surface of the lifting platform (4) is provided with a cutting blade (5) for cutting paper. Furthermore, the lifting platform (4) is provided with a limiting component, which includes a pressure plate (8) that can move up and down with the lifting platform (4), and a rubber pad (9) is provided on the bottom surface of the pressure plate (8).

2. The paper cutter for billboard printing according to claim 1, characterized in that, The lifting platform (4) is connected to a sliding shaft (7) via a connecting seat (6), and the pressure plate (8) is slidably connected to the sliding shaft (7). A spring (10) is sleeved on the sliding shaft (7) and arranged between the connecting seat (6) and the pressure plate (8).

3. A paper cutter for billboard printing according to claim 1, characterized in that, The height of the pressure plate (8) is lower than the height of the cutting blade (5).

4. A paper cutter for billboard printing according to claim 2, characterized in that, The cutting table (1) is also provided with a second rubber pad (11) that works in conjunction with the first rubber pad (9), and the cutting table (1) is provided with guide holes (12) arranged on both sides of the second rubber pad (11) for the sliding shaft (7) to pass through.

5. A paper cutter for billboard printing according to claim 1, characterized in that, The cutting table (1) is also provided with a feeding mechanism, which includes two rotatable conveying rollers (16) arranged in parallel, and each conveying roller (16) has a number of rubber protrusions (17) evenly arranged on its outer surface.

6. A paper cutter for billboard printing according to claim 5, characterized in that, The cutting table (1) is also provided with guide components arranged on both sides of the feeding mechanism; Each set of the guide components includes two movable blocks (20), a slide bar (21) and a limiting sleeve (22) disposed between the two movable blocks (20).

7. A paper cutter for billboard printing according to claim 6, characterized in that, The cutting table (1) is also provided with a threaded block (18), the threaded block (18) is provided with a threaded hole, and the threaded hole is internally threaded with a threaded rod (19) for driving the movable block (20) to move.

8. A paper cutter for billboard printing according to claim 6, characterized in that, The cutting table (1) is provided with a second slide groove (23) corresponding to the arrangement below multiple movable blocks (20).

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