Tensioning machine of rotary press

Abstract

The utility model relates to the technical field of rotary presses, and discloses a tensioning machine of a rotary press, which comprises a working table, the front top end and the rear top end of the working table are fixedly connected with protective plates, the middle of each protective plate is provided with a limiting groove, and the middle of the top end of each protective plate is fixedly connected with a servo motor. The output end of the servo motor is fixedly connected with a ball screw, the bottom end of the ball screw is rotatably connected with a limiting ring, and the bottom end of the limiting ring is fixedly connected with the workbench. When the numerical value, transmitted to the pressure sensor through the probe, of the pressure borne by the tensioning roller exceeds the range, the pressure sensor triggers the servo motor to be started, the tensioning roller is moved downwards to adjust the tensioning force, automatic adjustment of the tensioning roller does not need manual monitoring or adjustment, and full automation of the device is effectively enhanced; and the two ends of the paper can be limited.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary machines, specifically a tensioner for rotary machines. Background Technology

[0002] Rotary printing presses are widely used in the label printing industry. They integrate feeding, printing, drying, and collecting, improving the efficiency of label printing. However, during operation, the tension on the substrate is not easily adjusted, which can easily lead to substrate breakage or wrinkles, affecting the quality of the finished product and increasing costs. Therefore, rotary printing presses equipped with tensioning devices have emerged to address this issue.

[0003] In existing equipment, if the belt or chain experiences tension changes due to wear or other factors during operation, it cannot be automatically adjusted and requires manual monitoring or adjustment. Furthermore, due to factors such as vibration, the screw may loosen, leading to unstable tension. Therefore, a tensioner for the rotary machine is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a tensioner for a rotary machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensioning machine for a rotary machine, comprising a worktable,

[0006] Protective plates are fixedly connected to the front and rear top ends of the worktable. Limiting grooves are opened in the middle of the protective plates. A servo motor is fixedly connected to the top middle of the protective plate. A ball screw is fixedly connected to the output end of the servo motor. A limiting ring is rotatably connected to the bottom end of the ball screw. The bottom end of the limiting ring is fixedly connected to the worktable.

[0007] Furthermore, the ball screw is threadedly connected to a ball nut seat in the middle, and connecting plates are fixedly connected to both the left and right sides of the ball nut seat.

[0008] Furthermore, each of the connecting plates has a guide rod running through its center, and the connecting plate and the guide rod are slidably connected vertically.

[0009] Furthermore, a support plate is fixedly connected to the inner side of the ball nut seat, and a U-shaped bracket is fixedly connected to one end of the support plate.

[0010] Furthermore, a number of return springs are fixedly connected to the top of the U-shaped bracket, and a tension roller is fixedly connected to the bottom of the return springs.

[0011] Furthermore, limit rods are fixedly connected to the front and rear bottom ends of the tensioning roller.

[0012] Furthermore, pressure sensors are fixedly connected to the front and rear top ends of the U-shaped bracket, and probes are fixedly connected to the output ends of the pressure sensors. The probes penetrate the U-shaped bracket and are in close contact with the upper end of the tension roller.

[0013] Furthermore, a first conveying roller and a second conveying roller are fixedly connected to the top of the worktable.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting up a servo motor, ball screw, ball nut seat, support plate, and U-shaped bracket, starting the servo motor drives the ball screw to rotate, causing the ball nut seat to move up and down. The U-shaped bracket connected to the support plate moves together, thereby adjusting the position of the tension roller. By setting up a pressure sensor, probe, return spring, and tension roller, when the pressure on the tension roller exceeds the range transmitted by the probe to the pressure sensor, the pressure sensor will trigger the servo motor to start, moving the tension roller downward to adjust the tension force. This automatic adjustment eliminates the need for manual monitoring or adjustment, effectively enhancing the full automation of the device. By setting a limit rod, the two ends of the paper can be limited. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0020] Figure 4 This is a front cross-sectional view of the present invention.

[0021] In the diagram: 1. Workbench; 2. Protective plate; 3. Servo motor; 4. Ball screw; 5. Ball nut seat; 6. Limit ring; 7. Connecting plate; 8. Guide rod; 9. Support plate; 10. U-shaped bracket; 11. Return spring; 12. Tension roller; 13. Limit rod; 14. Pressure sensor; 15. Probe; 16. First conveyor roller; 17. Second conveyor roller; 18. Limit groove. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

[0025] Please see Figure 1-4This utility model provides a tensioning machine technical solution for a rotary machine: a tensioning machine for a rotary machine includes a worktable 1, with protective plates 2 fixedly connected to the front and rear top ends of the worktable 1, and limit grooves 18 formed in the middle of the protective plates 2. A servo motor 3 is fixedly connected to the middle of the top end of the protective plates 2. By setting up the servo motor 3, ball screw 4, ball nut seat 5, support plate 9 and U-shaped bracket 10, the servo motor 3 is started, and the servo motor 3 drives the ball screw to rotate, causing the ball nut seat 5 to move up and down. The U-shaped bracket connected to the support plate 9 moves together to adjust the position of the tensioning roller 12. The output end of the servo motor 3 is fixedly connected to the ball screw 4, and the bottom end of the ball screw 4 is rotatably connected to a limit ring 6. The bottom end of the limit ring 6 is fixedly connected to the worktable 1.

[0026] A ball screw 4 is threadedly connected to a ball nut seat 5. Connecting plates 7 are fixedly connected to both sides of the ball nut seat 5. A guide rod 8 is threaded through the middle of each connecting plate 7. The connecting plate 7 and the guide rod 8 are slidably connected vertically. A support plate 9 is fixedly connected to the inner side of the ball nut seat 5. A U-shaped bracket 10 is fixedly connected to one end of the support plate 9. Several return springs 11 are fixedly connected to the top of the inside of the U-shaped bracket 10. A tension roller 12 is fixedly connected to the bottom of each return spring 11. Limiting rods 13 are fixedly connected to the front and rear bottom ends of the tension roller 12. By setting the limiting rods 13, the two ends of the paper can be limited. The front and rear top ends of the U-shaped bracket 10 are fixedly connected... A pressure sensor 14 is connected. By setting up the pressure sensor 14, probe 15, reset spring 11 and tension roller 12, when the pressure on the tension roller 12 is transmitted to the pressure sensor 14 through the probe 15 and the value exceeds the range, the pressure sensor 14 will trigger the servo motor 3 to start and move the tension roller 12 downward to adjust the tension force. This allows for automatic adjustment without manual monitoring or adjustment, effectively enhancing the full automation of the device. The output end of the pressure sensor 14 is fixedly connected to the probe 15, which passes through the U-shaped bracket 10 and is close to the upper end of the tension roller 12. The top of the worktable 1 is fixedly connected to the first conveyor roller 16 and the second conveyor roller 17 respectively.

[0027] When this utility model is in use, if the paper tape becomes loose during transmission and the pressure on the tension roller 12 is transmitted to the pressure sensor 14 through the probe 15 and the value exceeds the range, the pressure sensor 14 will trigger the servo motor 3 to start, moving the tension roller 12 downward to adjust the tension force. This allows for automatic adjustment without manual monitoring or adjustment, effectively enhancing the full automation of the device. By setting up the servo motor 3, ball screw 4, ball nut seat 5, support plate 9, and U-shaped bracket 10, starting the servo motor 3 causes the ball screw to rotate, making the ball nut seat 5 move up and down. The U-shaped bracket connected to the support plate 9 moves together to adjust the position of the tension roller 12. By setting the limit rod 13, the two ends of the paper can be limited.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensioner for a rotary machine, comprising a worktable (1), characterized in that: The front and rear top ends of the workbench (1) are fixedly connected to protective plates (2). Each protective plate (2) has a limiting groove (18) in the middle. A servo motor (3) is fixedly connected to the top middle of the protective plate (2). A ball screw (4) is fixedly connected to the output end of the servo motor (3). A limiting ring (6) is rotatably connected to the bottom end of the ball screw (4). The bottom end of the limiting ring (6) is fixedly connected to the workbench (1).

2. The tensioner for a rotary machine according to claim 1, characterized in that: The ball screw (4) is threadedly connected to a ball nut seat (5), and connecting plates (7) are fixedly connected to both the left and right sides of the ball nut seat (5).

3. The tensioner for a rotary machine according to claim 2, characterized in that: Each of the connecting plates (7) has a guide rod (8) that runs through its middle, and the connecting plate (7) and the guide rod (8) are slidably connected vertically.

4. The tensioner for a rotary machine according to claim 3, characterized in that: A support plate (9) is fixedly connected to the inner side of the ball nut seat (5), and a U-shaped bracket (10) is fixedly connected to one end of the support plate (9).

5. The tensioner for a rotary machine according to claim 4, characterized in that: The top of the U-shaped bracket (10) is fixedly connected to several return springs (11), and the bottom of the return springs (11) is fixedly connected to tension rollers (12).

6. The tensioner for a rotary machine according to claim 5, characterized in that: Limiting rods (13) are fixedly connected to the front and rear bottom ends of the tensioning roller (12).

7. The tensioner for a rotary machine according to claim 6, characterized in that: Pressure sensors (14) are fixedly connected to the front and rear top ends of the U-shaped bracket (10). A probe (15) is fixedly connected to the output end of the pressure sensor (14). The probe (15) passes through the U-shaped bracket (10) and is close to the upper end of the tension roller (12).

8. The tensioner for a rotary machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a first conveyor roller (16) and a second conveyor roller (17).

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