Edge lifting prevention mechanism for decorative paper printing

Abstract

This utility model provides an anti-curling edge mechanism for decorative paper printing, including a printing frame. A take-up roller is rotatably connected to the tail end of the printing frame, and a pressure roller is rotatably connected via a rotating arm. Each of the two rotating arms has a tilting lever sleeve that can be tilted up and down. The end of each tilting lever sleeve is rotatably connected to a connecting arm via a torsion spring. The end of each connecting arm is fixedly connected to a pressure arm, and the end of each pressure arm is rotatably connected to a pressure roller. The pressure roller presses against the edge of the decorative paper roll after tilting down with the tilting lever sleeve and connecting arm. The side wall of each rotating arm has a mounting groove, and a rotating shaft is rotatably connected within the mounting groove. The corresponding end of each tilting lever sleeve is slidably connected to and sleeved on the rotating shaft. A limit component is installed on each tilting lever sleeve. This mechanism is easy for operators to use. When curling is observed at the edge of the paper roll, simply tilting down the lever sleeve will press the pressure roller against the edge of the paper roll. It is convenient to use and effectively prevents the paper roll from curling and cracking.

Description

Technical Field

[0001] This utility model relates to the field of decorative paper production technology, and in particular to an anti-curling mechanism for decorative paper printing. Background Technology

[0002] Decorative paperboard is generally used in home decoration. Its production process involves printing on paper first, then laminating the printed paper with board material to obtain decorative paperboard. After printing and drying, the decorative paper is wound into rolls.

[0003] During the winding process of decorative paper, the edges may curl up due to the increased printing tension. After winding to a certain number of rolls, the tension at the edge of the paper roll will reach a certain value and cause it to crack. Once it cracks, the corresponding number of rolls of paper will be scrapped. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an anti-curling edge mechanism for decorative paper printing. This mechanism is easy for operators to use. After discovering that the edge of the paper roll is curling up, simply flip it down and press the pressure roller onto the edge of the paper roll. It is convenient to use and can effectively prevent the paper roll from curling and cracking.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: An anti-curling edge mechanism for decorative paper printing includes a printing frame. A take-up roller is rotatably connected to the tail end of the printing frame, and a pressure roller is rotatably connected via a rotating arm. A flipping rod sleeve that can be flipped up and down is installed on the side wall of each of the two rotating arms. A connecting arm is rotatably connected to the end of the flipping rod sleeve via a torsion spring. A pressure arm is fixedly connected to the end of the connecting arm. A pressure roller is rotatably connected to the end of the pressure arm. The pressure roller presses against the edge of the decorative paper roll after flipping down with the flipping rod sleeve and the connecting arm.

[0006] Preferably, the side wall of the rotating arm is provided with a mounting groove, a rotating shaft is rotatably connected in the mounting groove, the corresponding end of the flipping rod sleeve is slidably connected and sleeved on the rotating shaft, and a limit component is installed on the flipping rod sleeve.

[0007] Preferably, the limiting component includes multiple limiting plates fixedly connected to the circumferential sidewall of the corresponding end of the flipping rod sleeve, and the circumferential inner wall of the mounting groove is provided with multiple limiting grooves, with each limiting groove corresponding to one of the multiple limiting plates.

[0008] Preferably, the torsion spring is embedded in the end of the connecting arm, and the end of the flipping rod sleeve is fixedly connected to the center end of the torsion spring.

[0009] Preferably, the number of limiting inserts is ten.

[0010] Preferably, the pressure roller is a bearing.

[0011] The beneficial effects of this utility model are as follows: 1. By installing the rotating shaft, flipping rod sleeve, limiting component, connecting arm, pressure arm, and pressure roller, the pressure roller is in the flipped-up position when not in use. When edge warping occurs, the operator only needs to pull the flipping rod sleeve outward to pull multiple limiting plates out of the limiting slots, then flip the connecting arm down to make the pressure roller touch the edge of the paper roll, and then push the connecting arm back to insert the multiple limiting plates at the end of the flipping rod sleeve back into the corresponding limiting slots to complete the locking. It is convenient to use and can effectively prevent edge warping.

[0012] 2. By installing a torsion spring, after the flipping lever is locked, the pressure roller presses against the paper edge. At this time, as the number of rolls increases, the torsion spring can keep the pressure roller at a certain pressure, thus improving the anti-curling effect. Attached Figure Description

[0013] Figure 1 This is a diagram showing the paper-pressing state of this utility model; Figure 2 This is a diagram showing the flip-up state of this utility model; Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram; Figure 4 This is a schematic diagram of the limit plate of this utility model in the pulled-out state.

[0014] In the diagram: 1 Printing machine frame, 2 Rotary arm, 3 Connecting arm, 4 Torsion spring, 5 Flipping rod sleeve, 6 Pressure roller, 7 Pressure arm, 8 Pressure wheel, 9 Rewinding roller, 10 Limiting plate, 11 Rotating shaft, 12 Limiting groove, 13 Mounting groove. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0017] Reference Figure 1-4 An anti-curling edge mechanism for decorative paper printing includes a printing frame 1. A take-up roller 9 is rotatably connected to the tail end of the printing frame 1, and a pressure roller 6 is rotatably connected via a rotating arm 2. A flipping rod sleeve 5 that can be flipped up and down is installed on the side wall of each of the two rotating arms 2. A connecting arm 3 is rotatably connected to the end of the flipping rod sleeve 5 via a torsion spring 4. A pressure arm 7 is fixedly connected to the end of the connecting arm 3. A pressure roller 8 is rotatably connected to the end of the pressure arm 7. The pressure roller 8 presses against the edge of the decorative paper roll after flipping down with the flipping rod sleeve 5 and the connecting arm 3.

[0018] Furthermore, the side wall of the rotating arm 2 is provided with a mounting groove 13, and a rotating shaft 11 is rotatably connected in the mounting groove 13. The corresponding end of the flipping rod sleeve 5 is slidably connected and sleeved on the rotating shaft 11, and a limit component is installed on the flipping rod sleeve 5.

[0019] Specifically, the limiting component includes multiple limiting plates 10 fixedly connected to the circumferential sidewall of the corresponding end of the flipping rod sleeve 5. The circumferential inner wall of the mounting groove 13 is provided with multiple limiting grooves 12, and the multiple limiting grooves 12 correspond one-to-one with the multiple limiting plates 10. First, pull the flipping rod sleeve 5 outward to pull the multiple limiting plates 10 out of the limiting grooves 12, and the connecting arm 3 can be flipped up or down.

[0020] Furthermore, the torsion spring 4 is embedded in the end of the connecting arm 3, and the end of the flipping rod sleeve 5 is fixedly connected to the center end of the torsion spring 4. After the flipping rod sleeve 5 is locked, the pressure roller 8 presses against the paper edge. At this time, as the number of rolls increases, the action of the torsion spring 4 can keep the pressure roller 8 at a certain pressure, thus improving the anti-curling effect.

[0021] Furthermore, there are ten limit plates 10, which have a wide range of adjustable angles.

[0022] Furthermore, pressure roller 8 is a bearing, which is low in cost.

[0023] When not in use, the pressure roller 8 is in the upward-flipped state. When edge warping occurs, the operator only needs to pull the flipping lever sleeve 5 outward to pull out the multiple limit plates 10 from the limit groove 12, then flip the connecting arm 3 downward so that the pressure roller 8 touches the edge of the paper roll. Then push the connecting arm 3 back to insert the multiple limit plates 10 at the end of the flipping lever sleeve 5 back into the corresponding limit groove 12 to complete the locking. It is convenient to use and can effectively prevent edge warping.

[0024] After the flipping lever sleeve 5 is locked, the pressure roller 8 presses against the paper edge. At this time, as the number of rolls increases, the torsion spring 4 can keep the pressure roller 8 at a certain pressure, thus improving the anti-curling effect.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanism for preventing edge curling in decorative paper printing, comprising a printing frame (1), wherein a take-up roller (9) is rotatably connected to the tail end of the printing frame (1), and a pressure roller (6) is rotatably connected via a rotating arm (2), characterized in that, Both of the rotating arms (2) are equipped with flipping rod sleeves (5) that can be flipped up and down. The end of the flipping rod sleeve (5) is rotatably connected to a connecting arm (3) via a torsion spring (4). The end of the connecting arm (3) is fixedly connected to a pressure arm (7). The end of the pressure arm (7) is rotatably connected to a pressure wheel (8). The pressure wheel (8) presses against the edge of the decorative paper roll after it flips down with the flipping rod sleeve (5) and the connecting arm (3).

2. The anti-curling mechanism for decorative paper printing according to claim 1, characterized in that, The side wall of the rotating arm (2) is provided with an installation groove (13), and a rotating shaft (11) is rotatably connected in the installation groove (13). The corresponding end of the flipping rod sleeve (5) is slidably connected and sleeved on the rotating shaft (11). A limit component is installed on the flipping rod sleeve (5).

3. The anti-curling mechanism for decorative paper printing according to claim 2, characterized in that, The limiting component includes multiple limiting plates (10) fixedly connected to the circumferential sidewall of the corresponding end of the flipping rod sleeve (5). The circumferential inner wall of the mounting groove (13) is provided with multiple limiting grooves (12), and the multiple limiting grooves (12) correspond one-to-one with the multiple limiting plates (10).

4. The anti-curling mechanism for decorative paper printing according to claim 1, characterized in that, The torsion spring (4) is embedded in the end of the connecting arm (3), and the end of the flipping rod sleeve (5) is fixedly connected to the center end of the torsion spring (4).

5. The anti-curling mechanism for decorative paper printing according to claim 3, characterized in that, The number of the limiting inserts (10) is ten.

6. The anti-curling mechanism for decorative paper printing according to claim 1, characterized in that, The pressure roller (8) is a bearing.

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