Front edge paper feeding wheel

Abstract

The front edge paper feeding wheel comprises an aluminum core, two embedded columns and a wheel body, sliding grooves are formed in the two ends of an opening of the wheel body, sliding blocks are connected into the two sliding grooves in a sliding mode, the lower surfaces of the two sliding blocks are fixedly connected with a first sliding column and a second sliding column respectively, and the side face of the second sliding column is fixedly connected with a filling column. A filling groove is formed in the first sliding column, the exterior of the filling column is slidably connected with the interior of the filling groove, so that more labor is saved during installation of the open end of the wheel body, the two ends of the two embedding columns are fixedly connected with installation cylinders, the interiors of the multiple installation cylinders are slidably connected with special-shaped columns, and the side faces of the special-shaped columns are fixedly connected with pull blocks. A worker does not need to press the front edge paper feeding wheel forcefully, the physical strength of the worker is saved, the installation efficiency is high, the front edge paper feeding wheel can be replaced and maintained conveniently when the friction force is insufficient, the wheel body can be limited conveniently after being installed, deviation in the using process is prevented, and then paper deflection in the paper feeding process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, specifically to a leading edge paper feed roller. Background Technology

[0002] Leading edge feed rollers are typically installed at the front of a printing press. They use friction to feed the printing paper to the designated position. Therefore, the friction generated by the leading edge feed rollers on the paper is particularly important. Insufficient friction can make printing difficult. Leading edge feed rollers made of polyurethane have sufficient friction to ensure smooth paper feeding.

[0003] Existing leading edge paper feed rollers, especially polyurethane ones, become smooth over time, leading to decreased friction and slippage during paper feeding, which affects print quality. The mounting end at the opening typically requires pressing, which is labor-intensive and lacks a limiting function, making it prone to displacement and paper skew. This new device makes the installation of the leading edge paper feed roller opening end much easier, saving labor and improving work efficiency. It also facilitates the replacement and maintenance of the leading edge paper feed roller and has a limiting function after installation to prevent displacement, ensuring product installation stability and guaranteeing paper feeding performance. Utility Model Content

[0004] The purpose of this utility model is to provide a leading edge paper feeding roller that solves the problem that after a long period of use, the surface of the leading edge paper feeding roller gradually becomes smooth, resulting in a decrease in friction and slippage during paper feeding, which affects print quality. The installation end at the opening usually requires pressing to install, which consumes a lot of the operator's strength and lacks the ability to limit movement after installation, making it easy for translation to occur, resulting in paper skewing.

[0005] To achieve the above objectives, a leading edge paper feeding roller is provided, comprising: an aluminum core, two fitting posts and a wheel body. Sliding grooves are provided at both ends of the wheel body opening. Sliding blocks are slidably connected inside the two sliding grooves. A first sliding post and a second sliding post are respectively fixedly connected to the lower surfaces of the two sliding blocks. A filling post is fixedly connected to the side of the second sliding post. A filling groove is provided inside the first sliding post. The outside of the filling post is slidably connected to the inside of the filling groove. This makes installation at the opening end of the wheel body easier, eliminating the need for workers to press forcefully, saving workers' energy, increasing installation efficiency, and facilitating replacement and maintenance when the leading edge paper feeding roller lacks friction.

[0006] Both ends of the two fitting columns are fixedly connected to the mounting cylinders. Multiple irregularly shaped columns are slidably connected inside the mounting cylinders. Pull blocks are fixedly connected to the sides of the irregularly shaped columns, and one end of the pull block extends to the outside of the mounting cylinder. The end of the irregularly shaped column away from the pull block passes through the mounting cylinder and is movably connected to the inside of the fitting column. Limiting protrusions are slidably connected to the upper and lower surfaces of the multiple irregularly shaped columns. The outer surface of the limiting protrusions is slidably connected to the inside of the mounting cylinder, which facilitates limiting after the wheel body is installed, preventing deviation during use, and thus preventing paper skewing during paper feeding.

[0007] According to the aforementioned leading edge paper feeding roller, the diameter of the filling column decreases towards the end away from the second slide column. The first slide column is elastic, and the second slide column gradually supports the first slide column. The elasticity of the first slide column is used to retract, thereby pressing the second slide column and reinforcing the connection between the first and second slide columns.

[0008] According to the aforementioned leading edge paper feeding roller, the roller body is mounted on the outer surface of the aluminum core, and the two fitting posts are both disposed on the inner surface of the roller body. The roller body is made of polyurethane material, which facilitates the installation of the roller body.

[0009] According to the aforementioned leading edge paper feeding roller, both the upper and lower surfaces of the irregular column are provided with limiting grooves, and the diameter of the irregular column decreases towards the end away from the pull block. The limiting grooves are used to control the rise or fall of the limiting protrusion.

[0010] According to the aforementioned leading edge paper feeding roller, the slider is provided with an inclined surface, and a limit block is provided on the upper surface of the slider to limit the movement of the slider and prevent it from falling off.

[0011] According to the aforementioned leading edge paper feeding roller, the cross-sectional dimensions of the chute match the cross-sectional dimensions of the slider, and the cross-sectional shape of the chute matches the cross-sectional shape of the slider, which facilitates the sliding of the first slide column and the second slide column.

[0012] According to the aforementioned leading edge paper feeding roller, the outer diameter of the aluminum core matches the inner diameter of the roller body, and a mounting hole is provided through the side of the aluminum core to facilitate connection between the aluminum core and the power source.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By pushing the first and second sliding pillars, the filling pillar is inserted into the filling groove. This supports the first sliding pillar, and the elasticity of the first sliding pillar compresses the filling pillar, thus fixing the first and second sliding pillars. The cooperation between the slider and the groove allows the first and second sliding pillars to move smoothly, making the installation of the wheel opening end easier. Workers do not need to press hard, saving their physical strength and increasing installation efficiency. It also facilitates replacement and maintenance when the friction of the leading edge paper feeding wheel is insufficient.

[0015] 2. After the wheel body is installed, the pull block pushes the irregular column to move and insert it into the fitting column. The diameter of the irregular column changes, thereby pushing the limiting protrusion out of the mounting cylinder. The fitting column elastically contracts and presses the irregular column to prevent it from moving. This facilitates limiting the position after the wheel body is installed, prevents deviation during use, improves the stability of the product installation, and prevents paper from skewing during paper feeding.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of a leading edge paper feeding roller according to the present invention;

[0019] Figure 2 This is a cross-sectional view of a leading edge paper feed roller for removing the aluminum core according to the present invention;

[0020] Figure 3 This utility model provides a leading edge paper feeding wheel. Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional view of a leading edge paper feed roller mounting cylinder according to the present invention;

[0022] Figure 5 This is a perspective view of an irregularly shaped column for the leading edge paper feeding wheel of this utility model.

[0023] In the diagram: 1. Aluminum core; 2. Wheel body; 3. Slide groove; 4. Slider; 5. First slide post; 6. Limiting protrusion; 7. Pull block; 8. Mounting cylinder; 9. Filling post; 10. Second slide post; 11. Fitting post; 12. Irregular post; 13. Filling groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5This utility model provides a technical solution: a leading edge paper feeding wheel, including: an aluminum core 1, two interlocking pillars 11 and a wheel body 2. The wheel body 2 has a sliding groove 3 at both ends of the opening to facilitate the sliding splicing of the first sliding pillar 5 and the second sliding pillar 10. The sliding grooves 3 are both connected to sliders 4 to make the first sliding pillar 5 and the second sliding pillar 10 slide smoothly. The lower surfaces of the two sliders 4 are respectively fixedly connected to the first sliding pillar 5 and the second sliding pillar 10. The side of the second sliding pillar 10 is fixedly connected to a filling pillar 9. By changing the diameter of the filling pillar 9, it can be supported when inserted into the filling groove 13 inside the first sliding pillar 5. The elastic contraction of the first sliding pillar 5 is used to fix the filling pillar 9. The first sliding pillar 5 has a filling groove 13 inside, and the outside of the filling pillar 9 is slidably connected to the inside of the filling groove 13.

[0026] Both ends of the two fitting columns 11 are fixedly connected to the mounting cylinders 8 to provide the mounting base. The interior of the multiple mounting cylinders 8 is slidably connected to the irregular columns 12. The diameter of the irregular columns 12 is changed to make the limiting protrusions 6 move up and down. The side of the irregular columns 12 is fixedly connected to the pull block 7 to facilitate pulling the irregular columns 12. One end of the pull block 7 extends to the outside of the mounting cylinder 8. The end of the irregular column 12 away from the pull block 7 passes through the mounting cylinder 8 and is movably connected to the interior of the fitting columns 11. The upper and lower surfaces of the multiple irregular columns 12 are slidably connected to the limiting protrusions 6. The outer surface of the limiting protrusions 6 is slidably connected to the interior of the mounting cylinder 8.

[0027] The diameter of the filling column 9 decreases towards the end away from the second sliding column 10. The first sliding column 5 is elastic, and the filling column 9 is fixed by the elastic contraction of the first sliding column 5. The wheel body 2 is installed on the outer surface of the aluminum core 1. Both fitting columns 11 are set on the inner surface of the wheel body 2, and the wheel body 2 is made of polyurethane. The upper and lower surfaces of the irregular column 12 are provided with limit grooves, so that the limit protrusion 6 moves up and down with the irregular column 12. The diameter of the irregular column 12 decreases towards the end away from the pull block 7. The slider 4 is provided with an inclined surface to limit it and prevent it from falling off. The upper surface of the slider 4 is provided with a limit block. The cross-sectional dimensions of the groove 3 match the cross-sectional dimensions of the slider 4, and the cross-sectional shape of the groove 3 matches the cross-sectional shape of the slider 4. The outer diameter of the aluminum core 1 matches the inner diameter of the wheel body 2. The side of the aluminum core 1 is provided with a through mounting hole.

[0028] Working principle: During installation, the first sliding column 5 and the second sliding column 10 are slid outwards. Then, the fitting column 11 inside the wheel body 2 is installed on the aluminum core 1. The opening of the wheel body 2 is aligned, and then the first sliding column 5 and the second sliding column 10 at both ends of the opening are pushed inwards. The sliding of the first sliding column 5 and the second sliding column 10 is restricted by the slider 4 and the sliding groove 3, so that the filling column 9 is inserted into the filling groove 13. The filling column 9 supports the first sliding column 5. The connection is reinforced by the elastic contraction of the first sliding column 5. After the wheel body 2 is installed, the pull block 7 pushes the irregular column 12. The gradually increasing diameter of the irregular column 12 causes the limiting protrusion 6 to slide out. The irregular column 12 will be inserted into the fitting column 11. The elastic contraction of the fitting column 11 will press and fix the irregular column 12 to prevent it from falling off. This allows the wheel body 2 to be limited to the left and right after installation, preventing offset after installation, improving installation quality, and preventing paper skewing during paper feeding.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leading-edge paper feeding roller, comprising: An aluminum core (1), two fitting posts (11) and a wheel body (2) are characterized in that the wheel body (2) has a sliding groove (3) at both ends of the opening, and a slider (4) is slidably connected inside the two sliding grooves (3). The lower surfaces of the two sliders (4) are respectively fixedly connected to a first sliding post (5) and a second sliding post (10). A filling post (9) is fixedly connected to the side of the second sliding post (10). A filling groove (13) is opened inside the first sliding post (5). The outside of the filling post (9) is slidably connected to the inside of the filling groove (13). Both ends of the two fitting columns (11) are fixedly connected to the mounting cylinder (8). The interior of the multiple mounting cylinders (8) is slidably connected to the irregular column (12). The side of the irregular column (12) is fixedly connected to the pull block (7), and one end of the pull block (7) extends to the outside of the mounting cylinder (8). The end of the irregular column (12) away from the pull block (7) passes through the mounting cylinder (8) and is movably connected to the interior of the fitting column (11). The upper and lower surfaces of the multiple irregular columns (12) are slidably connected to the limiting protrusion (6). The outer surface of the limiting protrusion (6) is slidably connected to the interior of the mounting cylinder (8).

2. The leading edge paper feed roller as described in claim 1, characterized in that: The diameter of the filling column (9) decreases toward the end away from the second sliding column (10), and the first sliding column (5) is elastic.

3. The leading edge paper feed roller as described in claim 1, characterized in that: The wheel body (2) is mounted on the outer surface of the aluminum core (1), and the two fitting posts (11) are both set on the inner surface of the wheel body (2), and the wheel body (2) is made of polyurethane.

4. The leading edge paper feed roller as described in claim 1, characterized in that: The upper and lower surfaces of the irregular column (12) are provided with limiting grooves, and the diameter of the irregular column (12) decreases towards the end away from the pull block (7).

5. The leading edge paper feed roller as described in claim 1, characterized in that: The slider (4) is provided with an inclined surface, and a limit block is provided on the upper surface of the slider (4).

6. The leading edge paper feed roller as described in claim 1, characterized in that: The cross-sectional dimensions of the groove (3) match the cross-sectional dimensions of the slider (4), and the cross-sectional shape of the groove (3) matches the cross-sectional shape of the slider (4).

7. The leading edge paper feed roller as described in claim 1, characterized in that: The outer diameter of the aluminum core (1) matches the inner diameter of the wheel body (2), and the side of the aluminum core (1) is provided with a mounting hole.

Images