CN220220057U - Paper positioning mechanism of offset press - Google Patents

Abstract

The utility model discloses a paper positioning mechanism of an offset printing machine, which comprises an adjusting base, wherein an external motor is arranged on the adjusting base, the output end of the external motor is connected with a screw rod, a sliding moving block is arranged on the screw rod, a gear plate is fixedly connected on the moving block, an adjusting block is arranged on the moving block, a motor is arranged on the adjusting block, the output end of the motor is connected with a transmission shaft, a rotary gear column is fixedly connected on the transmission shaft, and a paper limiting device is arranged in the adjusting block.

Description

A paper positioning mechanism for an offset printing press

Technical field

The utility model relates to the technical field of paper positioning, and in particular to a paper positioning mechanism of an offset printing press.

Background technique

An offset printing machine is a type of lithographic printing machine. During printing, the printed graphics and text are first printed from the printing plate onto the rubber cylinder, and then transferred to the paper by the rubber cylinder;

Referring to the paper positioning mechanism of an offset printing press with application number CN202223458467. The paper is limited on both sides, so that the paper can be transported stably. When paper of different sizes is limited, the handle is turned, and the handle drives the transmission rod on one side to rotate. It is driven by the transmission wheel and transmission belt, causing the transmission rods on both sides to rotate. , driven by the first bevel gear and the second bevel gear, the two threaded rods rotate, that is, the two adjustment plates move, that is, the push-pull rod can be pushed or pulled, that is, the position of the limit rollers on both sides can be adjusted, which is convenient Stable transportation of paper of different sizes;

When existing offset printing machines print paper, the paper is prone to move, causing paper misalignment, resulting in skewed printing and affecting product quality. At the same time, the position of the paper on existing offset printing machines is mostly fixed, making it difficult to adjust. Less flexibility makes work less efficient.

To this end, we designed a paper positioning mechanism for offset printing presses.

Utility model content

The purpose of this utility model is to propose a paper positioning mechanism for an offset printing press in order to solve the problem in the prior art that paper movement is easy to occur and affects product quality, and that the position of the paper on the offset printing press is mostly fixed and difficult to adjust.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A paper positioning mechanism for an offset printing press, including an adjusting base. An external motor is provided on the adjusting base, and the output end of the external motor is connected to a screw rod. The screw rod is provided with a sliding moving block. A gear plate is fixedly connected to the moving block, an adjusting block is provided to the moving block, a motor is provided to the adjusting block, and the output end of the motor is connected to a transmission shaft, and a rotating gear column is fixedly connected to the transmission shaft. , a paper limiting device is provided in the adjustment block, a rotating rod is rotatably connected to the adjusting block, and a worm gear is fixedly connected to the rotating rod.

Preferably, the paper limiting device includes a plurality of double-headed threaded rods that are rotationally connected in the adjustment block, and a threaded plate is threadedly connected to the double-headed threaded rod, and a limiting plate is fixedly connected to the threaded plate. A worm is fixedly connected to the rod, and the threaded plate moves in the adjusting block through a double-headed threaded rod.

Preferably, the peripheral motor provides power to the screw rod, and the moving block moves on the adjusting base through the screw rod.

Preferably, the electric motor powers the transmission shaft, and the transmission shaft is rotated by the electric motor.

Preferably, the gear plate is engaged with the rotating gear column for transmission, and the rotating gear column moves on the moving block through the gear plate.

Preferably, the worm is engaged with a worm gear for transmission, and the worm rotates through the worm gear.

The beneficial effects of this utility model are:

1. This utility model uses a double-headed threaded rod on the adjustment block. The threaded plate connected to the double-headed threaded rod moves by the alignment of the double-headed threaded rod. The movement of the threaded plate causes the limiting plate to move, so that the limiter plate can move. Limiting paper sizes of different sizes effectively avoids printing errors caused by paper movement during printing, thereby effectively improving work efficiency.

2. This utility model uses a screw rod on the adjusting base. The setting of the screw rod causes the moving block to move forward and backward to adjust the position of the paper. At the same time, the adjusting block is provided with a rotating gear column. Because the rotating gear column and the gear Plate meshing transmission, when the rotating gear column rotates, the paper on the adjusting block is adjusted left and right under the action of the rotating gear column. By adjusting the position of the paper forward, backward, left, and right, the flexibility of paper printing is better, thereby effectively improving work efficiency. .

Description of the drawings

Figure 1 is a schematic structural diagram of a paper positioning mechanism of an offset printing press proposed by the utility model;

Figure 2 is a schematic structural diagram of an adjusting device in a paper positioning mechanism of an offset printing press;

Figure 3 is a schematic structural diagram of a limiting device in a paper positioning mechanism of an offset printing press.

In the picture: 1 adjusting base, 2 peripheral motor, 3 screw rod, 4 moving block, 5 gear plate, 6 adjusting block, 7 electric motor, 8 transmission shaft, 9 rotating gear column, 10 double-headed threaded rod, 11 threaded plate, 12 limit plate, 13 worm, 14 rotating rod, 15 worm gear.

Detailed ways

Referring to Figures 1 to 3, a paper positioning mechanism for an offset printing press includes an adjusting base 1. An external motor 2 is provided on the adjusting base 1, and the output end of the external motor 2 is connected to a screw rod 3. The screw rod 3 There is a sliding moving block 4 on the top. The peripheral motor 2 provides power for the screw rod 3, and the moving block 4 moves on the adjusting base 1 through the screw rod 3. The setting of the screw rod 3 causes the moving block 4 to move forward and backward. Adjust the position of the paper. By adjusting the position of the paper forward and backward, the flexibility of paper printing is better, thus effectively improving work efficiency;

The moving block 4 is fixedly connected with a gear plate 5, and the moving block 4 is provided with an adjusting block 6. The adjusting block 6 is provided with a motor 7, and the output end of the motor 7 is connected to a transmission shaft 8, and the motor 7 provides power for the transmission shaft 8. , and the transmission shaft 8 is rotated by the motor 7, the transmission shaft 8 is fixedly connected with the rotating gear column 9, the gear plate 5 meshes with the rotating gear column 9 for transmission, and the rotating gear column 9 moves on the moving block 4 through the gear plate 5, the transmission shaft 8 Through the rotation of the motor 7, the rotation of the transmission shaft 8 causes the rotation of the rotating gear column 9 that is fixedly connected to the transmission shaft 8. Since the rotating gear column 9 meshes with the gear plate 5 for transmission, when the rotating gear column 9 rotates, the rotating gear column 9 is fixed to the rotating gear column 9. The connected transmission shaft 8 moves on the gear plate 5. The movement of the transmission shaft 8 causes the adjustment block 6 connected with the transmission shaft 8 to move left and right on the gear plate 5. The left and right movement of the adjustment block 6 causes the paper to move left and right, thereby making the paper The flexibility of printing is good, which effectively improves work efficiency;

There is a paper limiting device in the adjusting block 6. A rotating rod 14 is rotatably connected in the adjusting block 6, and a worm gear 15 is fixedly connected to the rotating rod 14. When the rotating rod 14 is rotated, the rotation of the rotating rod 14 makes it fixedly connected to the rotating rod 14. The worm gear 15 rotates;

Referring to Figure 3, the paper limiting device includes a plurality of double-headed threaded rods 10 that are rotationally connected in the adjustment block 6, and the double-headed threaded rods 10 are threadedly connected to a threaded plate 11, and the threaded plate 11 is fixedly connected to a limiting plate 12, A worm 13 is fixedly connected to the double-ended threaded rod 10. The worm 13 meshes with the worm gear 15 for transmission, and the worm 13 rotates through the worm gear 15. The threaded plate 11 moves in the adjusting block 6 through the double-ended threaded rod 10, and the paper is arranged and placed in the adjusting block 6. On block 6, the rotation of the worm gear 15 causes the worm 13 that is meshed and driven with the worm gear 15 to rotate. The rotation of the worm 13 causes the double-ended threaded rod 10 fixedly connected to the worm 13 to rotate. The rotation of the double-ended threaded rod 10 causes the double-ended threaded rod 10 to rotate. The two threaded plates 11 on the threaded plate 10 move relative to each other. The movement of the threaded plate 11 causes the limiting plate 12 fixedly connected to the threaded plate 11 to move and limit the paper. The movement of the limiting plate 12 can limit paper of different sizes. , effectively avoiding printing errors caused by movement of paper during printing, thus effectively improving work efficiency.

The working principle of the utility model is as follows: first, arrange the paper and place it on the adjusting block 6, rotate the rotating rod 14, and the rotation of the rotating rod 14 causes the worm wheel 15 to rotate;

Further, the rotation of the worm gear 15 causes the worm 13 to rotate, the rotation of the worm 13 causes the double-started threaded rod 10 to rotate, and the rotation of the double-started threaded rod 10 causes the two threaded plates 11 connected with the double-started threaded rod 10 to move relative to each other. The movement of the threaded plate 11 causes the limiting plate 12 to move the limiting paper. The movement of the limiting plate 12 can limit paper of different sizes, effectively avoiding printing errors caused by movement during paper printing, thereby effectively improving work efficiency. efficiency;

Further, the peripheral motor 2 provides power to the screw rod 3, and the moving block 4 moves on the adjusting base 1 through the screw rod 3. The setting of the screw rod 3 causes the moving block 4 to move forward and backward, thereby adjusting the position of the paper. , by adjusting the position of the paper forward and backward, the flexibility of paper printing is better, thus effectively improving work efficiency;

Further, the transmission shaft 8 is rotated by the motor 7, and the rotation of the transmission shaft 8 causes the rotation gear column 9 to rotate. Since the rotation gear column 9 meshes with the gear plate 5 for transmission, when the rotation gear column 9 rotates, the transmission shaft 8 is on the gear plate 5. Movement, the movement of the transmission shaft 8 causes the adjustment block 6 to move left and right on the gear plate 5, and the left and right movement of the adjustment block 6 causes the paper to move left and right, thereby making paper printing more flexible and effectively improving work efficiency.

The above are only preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed by the present utility model, implement the present utility model according to the present utility model. Novel technical solutions and utility model concepts, including equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a paper positioning mechanism of offset press, includes adjustment base (1), its characterized in that, be equipped with peripheral hardware motor (2) on adjustment base (1), and the output of peripheral hardware motor (2) is connected with lead screw (3), be equipped with gliding movable block (4) on lead screw (3), fixedly connected with gear plate (5) on movable block (4), be equipped with regulating block (6) on movable block (4), be equipped with motor (7) on regulating block (6), and the output of motor (7) is connected with transmission shaft (8), fixedly connected with rotation gear post (9) on transmission shaft (8), be equipped with paper stop device in regulating block (6), be connected with dwang (14) in the rotation of regulating block (6), and fixedly connected with worm wheel (15) on dwang (14).

2. The paper positioning mechanism of an offset printing press according to claim 1, wherein the paper limiting device comprises a plurality of double-headed threaded rods (10) which are rotationally connected with each other through an adjusting block (6), a threaded plate (11) is connected to the double-headed threaded rods (10) in a threaded manner, a limiting plate (12) is fixedly connected to the threaded plate (11), a worm (13) is fixedly connected to the double-headed threaded rods (10), and the threaded plate (11) moves in the adjusting block (6) through the double-headed threaded rods (10).

3. A sheet positioning mechanism of an offset printing press according to claim 1, characterized in that the external motor (2) powers a screw (3), and the moving block (4) moves on the adjustment base (1) through the screw (3).

4. A sheet positioning mechanism of an offset printing press according to claim 1, characterized in that the motor (7) powers the drive shaft (8), and that the drive shaft (8) is rotated by the motor (7).

5. A sheet positioning mechanism of an offset printing press according to claim 1, wherein the gear plate (5) is in meshed transmission with a rotary gear column (9), and the rotary gear column (9) is moved in the moving block (4) by the gear plate (5).

6. A sheet positioning mechanism of an offset printing press according to claim 2, wherein the worm (13) is geared with a worm wheel (15), and the worm (13) is rotated by the worm wheel (15).