Tension control equipment of printing machine

Abstract

The utility model belongs to the technical field of printing machines, and particularly relates to a printing machine tension control device which comprises a base, control frames are fixedly connected to the two sides of the top of the base, and a conveying roller is rotationally connected to the upper portion between the two control frames. The utility model provides tension control equipment of a printing machine, and solves the problems that in the prior art, when a printing machine prints paper, the paper needs to be conveyed through an external conveying device, in order to improve the quality of printed products, the tension degree of the paper needs to be frequently adjusted, however, the manual adjustment precision is poor, and the printing efficiency is high. In the prior art, the tension degree of paper cannot be accurately adjusted to the most appropriate range and cannot be adjusted in real time, so that the flatness of the paper after entering a printing machine is affected, the printing quality is further affected, deviation is likely to be generated in the paper conveying process, and if the paper is not subjected to rapid induction correction, printing errors are caused, and the printing quality is affected. The printing efficiency is reduced; and the production cost is improved.

Description

Technical Field

[0001] The utility model belongs to the field of printing machines, in particular to a tension control device for a printing machine. Background Art

[0002] A printing press is a device that prints text, patterns or other information on the surface of paper or film. In order to ensure good printing results, precise tension control of the paper or film is required.

[0003] The printing press in the prior art needs to transmit the paper through an external transmission device when printing. In order to improve the quality of printed products, the tension of the paper needs to be adjusted frequently. However, the accuracy of manual adjustment is poor, and the tension of the paper cannot be accurately adjusted to the most appropriate range. In addition, the degree of automation is low, and real-time adjustment cannot be performed, which affects the flatness of the paper after entering the printing press, thereby affecting the printing quality. In addition, deviation is easy to occur during the paper transmission process. If the paper is not quickly sensed and corrected, printing errors will occur, thereby reducing printing efficiency and increasing production costs. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a tension control device for a printing press.

[0005] The technical solution of the utility model is as follows: a printing press tension control device, comprising a base, both sides of the top of the base are fixedly connected with control frames, a conveying roller is rotatably connected above the two control frames, a limiting rod is slidably connected between the two control frames and on one side of the conveying roller, a tension adjustment roller is rotatably connected outside the limiting rod, a transmission roller is rotatably connected below the two control frames, limiting rings are fixedly connected on both sides of the outside of the tension adjustment roller, an adjustment component is arranged inside the control frame, and a deviation correction component is arranged at the bottom of the control frame.

[0006] As a preferred embodiment, the adjustment assembly includes a fixed plate, the fixed plate is fixedly connected to an inner side of the control frame, a sliding rod is slidably connected to the inner side of the fixed plate, one end of the sliding rod is fixedly connected to the limit rod, an electric telescopic rod is fixedly connected to the inner side of the control frame away from the limit rod through a mounting block, the output end of the electric telescopic rod is fixedly connected to the sliding rod, a pressure sensor is installed inside the fixed plate and on the outer side of the sliding rod, and a spring is provided outside the sliding rod and between the limit rod and the pressure sensor.

[0007] As a preferred embodiment, the correction component includes an infrared sensor and a transmission unit, a fixed block is fixedly connected to the upper inner side of the two control frames, an infrared sensor is installed at the bottom of the two fixed blocks, an adjustment plate is slidably connected to the outside of the limit rod and on both sides of the tension adjustment roller, the tension adjustment roller is rotatably connected between the two adjustment plates, the bottom of the two control frames are fixedly connected to the limit plate, and the inside of the two limit plates are slidably connected to a slider, and the tension adjustment roller can move through the transmission unit.

[0008] As a preferred embodiment, the transmission unit includes a screw, which is rotatably connected between two sliders, and the two adjustment plates are threadedly connected to the outside of the screw, wherein a support plate is fixedly connected to the outer side of one of the sliders, and a motor is fixedly connected to the top of the support plate, and the output end of the motor extends to the inner side of the limit plate and is fixedly connected to the screw, and the output end of the motor is rotatably connected to the inside of the limit plate and the support plate.

[0009] As a preferred implementation, the outsides of the conveying roller, the tension adjustment roller and the driving roller are all provided with anti-skid pads, and the anti-skid pads are made of rubber material.

[0010] As a preferred implementation manner, the pressure sensor is electrically connected to the electric telescopic rod through an external controller, and the infrared sensor is electrically connected to the motor through an external controller.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device can sense the real-time tension of the paper through a pressure sensor, and quickly adjust and control the tension according to the sensed value, so that the tension of the paper is always controlled within an appropriate range, avoiding paper damage or wrinkles caused by insufficient or excessive tension, thereby improving the subsequent printing quality of the paper.

[0013] This device can quickly sense and correct the deviation phenomenon during paper transmission, preventing the paper from being transmitted to the inside of the printing machine after deviation, causing printing errors, improving printing efficiency, and reducing printing error rate and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a bottom-up stereogram of the present utility model;

[0017] Figure 3It is a cross-sectional view of the control frame in the utility model;

[0018] Figure 4 It is a cross-sectional view of the tension adjustment roller in the utility model;

[0019] Figure 5 For the utility model Figure 1 Enlarged view of point A in the middle.

[0020] In the figure: 1. base; 2. control frame; 3. conveying roller; 4. limit rod; 5. tension adjustment roller; 6. transmission roller; 7. limit ring; 8. infrared sensor; 9. fixed plate; 10. slide bar; 11. pressure sensor; 12. spring; 13. electric telescopic rod; 14. adjustment plate; 15. limit plate; 16. slider; 17. lead screw; 18. support plate; 19. motor; 20. fixed block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1-5 A printing press tension control device comprises a base 1, control frames 2 are fixedly connected to both sides of the top of the base 1, a conveying roller 3 is rotatably connected to the upper part between the two control frames 2, a limit rod 4 is slidably connected between the two control frames 2 and on one side of the conveying roller 3, a tension adjustment roller 5 is rotatably connected to the outer part of the limit rod 4, a transmission roller 6 is rotatably connected to the lower part between the two control frames 2, limit rings 7 are fixedly connected to both sides of the outer part of the tension adjustment roller 5, an adjustment component is arranged inside the control frame 2, and a deviation correction component is arranged at the bottom of the control frame 2.

[0023] Specifically, the adjustment component includes a fixed plate 9, which is fixedly connected to one side of the interior of the control frame 2, a sliding rod 10 is slidably connected to the interior of the fixed plate 9, one end of the sliding rod 10 is fixedly connected to the limit rod 4, an electric telescopic rod 13 is fixedly connected to the side of the interior of the control frame 2 away from the limit rod 4 through a mounting block, an output end of the electric telescopic rod 13 is fixedly connected to the sliding rod 10, a pressure sensor 11 is installed inside the fixed plate 9 and on the outside of the sliding rod 10, a spring 12 is provided outside the sliding rod 10 and between the limit rod 4 and the pressure sensor 11, the correction component includes an infrared sensor 8 and a transmission unit, fixed blocks 20 are fixedly connected to the upper inner sides of the two control frames 2, infrared sensors 8 are installed at the bottoms of the two fixed blocks 20, the limit rod 4 is outside and Adjustment plates 14 are slidably connected to both sides of the tension adjustment roller 5, and the tension adjustment roller 5 is rotatably connected between the two adjustment plates 14. The bottoms of the two control frames 2 are fixedly connected to limit plates 15, and the insides of the two limit plates 15 are slidably connected to sliders 16. The tension adjustment roller 5 can move through a transmission unit, and the transmission unit includes a lead screw 17, which is rotatably connected between the two sliders 16. The two adjustment plates 14 are threadedly connected to the outside of the lead screw 17, and a support plate 18 is fixedly connected to one side of the outside of one of the sliders 16, and a motor 19 is fixedly connected to the top of the support plate 18, and the output end of the motor 19 extends to the inner side of the limit plate 15 and is fixedly connected to the lead screw 17, and the output end of the motor 19 is rotatably connected to the inside of the limit plate 15 and the support plate 18.

[0024] Through the above technical solution, the paper to be printed is firstly wound around the outside of the conveying roller 3. When the paper needs to be printed and transmitted, one end of the paper is pulled out and passed through the tension adjustment roller 5. The paper is limited by the limiting rings 7 on both sides of the outside of the tension adjustment roller 5 to facilitate the subsequent deviation correction work. Finally, the paper passes through the bottom of the transmission roller 6, and the transmission roller 6 can be used to transmit the paper to the printing machine for printing. During the transmission process of the paper, when the tension of the paper is loose or too tight, the limiting rod 4 will slide inside the control frame 2, thereby causing the spring 12 to deform. After the spring 12 is deformed, it squeezes the pressure sensor 11. The force will change accordingly. When the pressure sensor 11 senses the changing pressure value, it transmits the value to the external controller, and controls the electric telescopic rod 13 to start through the external controller, so that the output end of the electric telescopic rod 13 drives the slide bar 10 to slide inside the fixed plate 9, until the slide bar 10 drives the limit rod 4 and the tension adjustment roller 5 to a suitable position, and the pressure value generated by the spring 12 on the pressure sensor 11 reaches a preset value, thereby stopping the movement of the electric telescopic rod 13, thereby achieving the purpose of tension control during paper transmission by adjusting the position of the tension adjustment roller 5. When the paper is deviated during transmission, the paper One side of the paper will cover the sensing range of the infrared sensor 8, so that the infrared sensor 8 will sense it, and then the sensed value will be transmitted to the external controller, and the motor 19 will be started by the external controller, so that the output end of the motor 19 drives the lead screw 17 to rotate, and the lead screw 17 then drives the two adjustment plates 14 to move in the same direction under the limit of the limit rod 4 through the threaded connection relationship, thereby driving the inner tension adjustment roller 5 and the limit ring 7 to adjust the left and right positions, until the paper is driven by the limit ring 7 to adjust to the position that the infrared sensors 8 on both sides cannot sense it, and the infrared sensor 8 then controls the motor 19 to stop running through the external controller, that is, The purpose of quickly correcting the deviation of paper during transmission can be achieved. The device can sense the real-time tension of the paper through the pressure sensor 11, and quickly adjust and control the tension according to the sensed value, so that the tension of the paper is always controlled within an appropriate range, avoiding damage or wrinkles to the paper due to insufficient tension or excessive tension, thereby improving the subsequent printing quality of the paper, and can quickly sense and correct the deviation phenomenon during the paper transmission process, preventing the paper from being transmitted to the inside of the printing machine after deviation, causing printing errors, improving printing efficiency, and reducing printing error rate and production costs.

[0025] Specifically, the outside of the conveying roller 3, the tension adjustment roller 5 and the driving roller 6 are all provided with anti-skid pads made of rubber material. The pressure sensor 11 is electrically connected to the electric telescopic rod 13 through an external controller, and the infrared sensor 8 is electrically connected to the motor 19 through an external controller.

[0026] Through the above technical solution, the anti-skid pads arranged outside the conveying roller 3, the tension adjustment roller 5 and the driving roller 6 can increase the friction between the conveying roller 3, the tension adjustment roller 5 and the driving roller 6, thereby further improving the transmission stability of the paper.

[0027] When in use, firstly, the paper to be printed is wound around the outside of the conveying roller 3. When the paper needs to be printed and transmitted, one end of the paper is pulled out and passed through the tension-adjusting roller 5. The paper is limited by the limiting rings 7 on both sides of the outside of the tension-adjusting roller 5 to facilitate the subsequent deviation correction work. Finally, the paper is passed through the bottom of the transmission roller 6. The paper can be transmitted to the printing machine through the transmission roller 6 for printing. During the transmission process of the paper, when the tension of the paper is loose or too tight, the limiting rod 4 will slide inside the control frame 2, thereby causing the spring 12 to deform. After the spring 12 is deformed, the squeezing force on the pressure sensor 11 will change accordingly. When the pressure sensor 11 senses After the changed pressure value is detected, the value is transmitted to the external controller, and the electric telescopic rod 13 is controlled to start by the external controller, so that the output end of the electric telescopic rod 13 drives the slide bar 10 to slide inside the fixed plate 9, until the slide bar 10 drives the limit rod 4 and the tension adjustment roller 5 to a suitable position, and the pressure value generated by the spring 12 on the pressure sensor 11 reaches a preset value, thereby stopping the movement of the electric telescopic rod 13, thereby achieving the purpose of tension control during paper transmission by adjusting the position of the tension adjustment roller 5. When the paper is offset during transmission, one side of the paper will cover the sensing range of the infrared sensor 8, thereby the infrared sensor 8 The sensed value is then transmitted to an external controller, and the motor 19 is started by the external controller, so that the output end of the motor 19 drives the lead screw 17 to rotate, and the lead screw 17 drives the two adjustment plates 14 to move in the same direction under the limit of the limit rod 4 through a threaded connection relationship, thereby driving the inner tension adjustment roller 5 and the limit ring 7 to adjust the left and right positions, until the paper is driven by the limit ring 7 to be adjusted to a position that cannot be sensed by the infrared sensors 8 on both sides, and the infrared sensor 8 controls the motor 19 to stop running through the external controller, so as to achieve the purpose of quickly correcting the paper during transmission. The device can use the pressure sensor 11 to detect the real-time tension of the paper. The force is sensed and the tension is quickly adjusted and controlled according to the sensed value, so that the tension of the paper is always controlled within an appropriate range, avoiding damage or wrinkles to the paper due to insufficient tension or excessive tension, thereby improving the subsequent printing quality of the paper, and can quickly sense and correct the deviation phenomenon in the paper transmission process, preventing the paper from being transmitted to the inside of the printing machine after deviation, causing printing errors, improving printing efficiency, and reducing printing error rate and production costs. The anti-skid pads arranged on the outside of the conveying roller 3, the tension adjustment roller 5 and the driving roller 6 can increase the friction between the paper and the paper, further improving the transmission stability of the paper.

[0028] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A printing press tension control device, comprising a base (1), characterized in that: Both sides of the top of the base (1) are fixedly connected to control frames (2); a conveying roller (3) is rotatably connected above the two control frames (2); a limit rod (4) is slidably connected between the two control frames (2) and located on one side of the conveying roller (3); a tension adjustment roller (5) is rotatably connected to the outside of the limit rod (4); a transmission roller (6) is rotatably connected to the bottom between the two control frames (2); both sides of the outside of the tension adjustment roller (5) are fixedly connected to limit rings (7); an adjustment component is arranged inside the control frame (2); and a deviation correction component is arranged at the bottom of the control frame (2).

2. A printing press tension control device according to claim 1, characterized in that: The adjustment assembly comprises a fixed plate (9), the fixed plate (9) being fixedly connected to one side of the interior of the control frame (2), a sliding rod (10) being slidably connected to the interior of the fixed plate (9), one end of the sliding rod (10) being fixedly connected to a limit rod (4), an electric telescopic rod (13) being fixedly connected to the interior of the control frame (2) away from the limit rod (4) via a mounting block, an output end of the electric telescopic rod (13) being fixedly connected to the sliding rod (10), a pressure sensor (11) being installed inside the fixed plate (9) and located outside the sliding rod (10), and a spring (12) being provided outside the sliding rod (10) and located between the limit rod (4) and the pressure sensor (11).

3. A printing press tension control device according to claim 2, characterized in that: The deviation correction component comprises an infrared sensor (8) and a transmission unit. A fixed block (20) is fixedly connected to the upper inner side of the two control frames (2). The bottom of the two fixed blocks (20) is installed with an infrared sensor (8). The outside of the limit rod (4) and on both sides of the tension adjustment roller (5) are slidably connected with an adjustment plate (14). The tension adjustment roller (5) is rotatably connected between the two adjustment plates (14). The bottom of the two control frames (2) is fixedly connected with the limit plate (15). The inside of the two limit plates (15) is slidably connected with a slider (16). The tension adjustment roller (5) can move through the transmission unit.

4. A printing press tension control device according to claim 3, characterized in that: The transmission unit comprises a lead screw (17), wherein the lead screw (17) is rotatably connected between two sliders (16), and the two adjustment plates (14) are both threadedly connected to the outside of the lead screw (17), wherein a support plate (18) is fixedly connected to the outside of one of the sliders (16), and a motor (19) is fixedly connected to the top of the support plate (18), wherein an output end of the motor (19) extends to the inside of the limit plate (15) and is fixedly connected to the lead screw (17), and an output end of the motor (19) is rotatably connected to the inside of the limit plate (15) and the support plate (18).

5. A printing press tension control device according to claim 4, characterized in that: The outsides of the conveying roller (3), the tension adjustment roller (5) and the driving roller (6) are all provided with anti-skid pads, and the anti-skid pads are made of rubber material.

6. A printing press tension control device according to claim 5, characterized in that: The pressure sensor (11) is electrically connected to the electric telescopic rod (13) via an external controller, and the infrared sensor (8) is electrically connected to the motor (19) via an external controller.

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