Paper feed baffle adjustment signal transmission device for water-based ink printing machine

Abstract

This utility model discloses a signal transmission device for adjusting the paper feed baffle of a water-based ink printing machine, belonging to the field of packaging and printing technology. It includes an adjusting motor and an encoder mounted on a support frame. The output shaft of the adjusting motor passes through the support frame and is connected to a lead screw via a coupling. A driving gear is mounted on the lead screw, and a driven gear meshing with the driving gear is mounted on the transmission shaft of the encoder. This utility model can accurately calculate the actual displacement without changing the original control system. It successfully overcomes the limitations of the original encrypted operating system, increases the lead screw pitch, and improves the adjustment speed of the baffle.

Description

Technical Field

[0001] This utility model belongs to the field of packaging and printing technology, and in particular relates to a signal transmission device for adjusting the paper feed baffle of a water-based ink printing machine. Background Technology

[0002] In the overall architecture of water-based ink printing equipment, the paper feeding mechanism is one of its core subsystems, and its performance directly affects printing accuracy, production efficiency, and equipment stability. This mechanism is also one of the most easily damaged or inaccurate parts of the equipment, especially after long-term high-load operation, where wear and aging are particularly prominent. Therefore, it often becomes a key target for upgrading and retrofitting imported equipment, and related improvement needs account for a significant proportion of equipment maintenance and performance enhancement.

[0003] The control systems of imported high-end water-based ink printing presses often employ encrypted operating systems, which presents significant challenges for localization and performance upgrades. Encryption means that modifications must be made while preserving the original program framework to avoid triggering system protection mechanisms or causing malfunctions. However, this preservation also severely limits the potential for performance improvements, as many enhanced functions are difficult to implement due to the inability to overcome the limitations of the original program.

[0004] The side baffle mechanism in the paper feeding section is used for left and right adjustment. This device has a long adjustment distance and is used frequently, and its drive core uses a lead screw and nut pair. In the original design, the lead screw pitch was mostly 5mm; theoretically, increasing it to 10mm could significantly improve the adjustment speed and response efficiency. However, since the system encoder has not been changed, there is a strict mathematical relationship between its feedback pulse and the lead screw lead. After the pitch is changed, the pulse equivalent fed back by the encoder no longer matches the actual displacement, resulting in inaccurate position control and preventing the modification from being directly achieved. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a signal transmission device for adjusting the paper feed baffle of a water-based ink printing machine. It can accurately calculate the actual displacement without changing the original control system. It successfully breaks through the limitations of the original encrypted operating system, realizes the increase of the lead screw pitch, and improves the adjustment speed of the baffle.

[0006] This utility model is implemented as follows: a paper feed baffle adjustment signal transmission device for a water-based ink printing machine includes an adjustment motor and an encoder mounted on a support frame. The output shaft of the adjustment motor passes through the support frame and is connected to a lead screw via a coupling. A drive gear is mounted on the lead screw, and a driven gear that meshes with the drive gear is mounted on the transmission shaft of the encoder.

[0007] Furthermore, the support frame includes a first fixed plate and a second fixed plate arranged in parallel and spaced apart. The first fixed plate and the second fixed plate are fixed together by a pad, so that a receiving space is formed between the first fixed plate and the second fixed plate, and the driving gear and the driven gear are placed in the receiving space. The adjusting motor is disposed on the outer end face of the first fixed plate, and the encoder is disposed on the outer end face of the second fixed plate, such that the adjusting motor and the encoder are relatively distributed.

[0008] Furthermore, both the first fixing plate and the second fixing plate are provided with mounting elongated holes, and the pad is connected to the first fixing plate and the second fixing plate through the cooperation of fasteners and mounting elongated holes.

[0009] Furthermore, the opening direction of the mounting elongated hole is set along the length direction of the first fixing plate and the second fixing plate.

[0010] Furthermore, the length of the pad is 32 mm.

[0011] Furthermore, the gear ratio i between the driving gear and the driven gear is... ,in, The number of teeth on the driven gear. The number of teeth on the driven gear; the pitch variation rate λ of the lead screw = in, The original lead screw pitch. The pitch of the lead screw after the change is given; the ratio of the number of teeth of the driving gear to that of the driven gear is equal to the rate of change of the lead screw pitch.

[0012] Furthermore, the adjusting motor is an NMRV geared motor.

[0013] The advantages and technical effects of this utility model are as follows: By adopting the above technical solution, the encoder is directly linked to the lead screw via a gear set. The gear set increases the rotational speed of the encoder's drive shaft. When the lead screw pitch is increased, the actual displacement can be accurately calculated without changing the original control system. This successfully overcomes the limitations of the original encrypted operating system, achieving an increase in the lead screw pitch and improving the adjustment speed of the baffle. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure provided in an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the support frame structure provided in an embodiment of the present utility model.

[0016] Figure 3 This is a top view of the overall structure provided in an embodiment of this utility model.

[0017] In the diagram: 1. Support frame; 1-1. First fixing plate; 1-2. Second fixing plate; 1-3. Pad; 1-4. Mounting elongated hole; 2. Adjustment motor; 3. Encoder; 4. Lead screw; 5. Drive gear; 6. Driven gear. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0019] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0020] like Figures 1 to 3 As shown, this application provides a signal transmission device for adjusting the paper feed baffle of a water-based ink printing machine, including an adjusting motor 2 and an encoder 3 mounted on a support frame 2. Specifically, the adjusting motor 2 is an NMRV geared motor. The output shaft of the adjusting motor 2 passes through the support frame 2 and is connected to a lead screw 4 via a coupling. A drive gear 5 is mounted on the lead screw 4, and a driven gear 6 that meshes with the drive gear 5 is mounted on the transmission shaft of the encoder 3.

[0021] Furthermore, the support frame 2 includes a first fixed plate 1-1 and a second fixed plate 1-2 arranged in parallel at intervals. The first fixed plate 1-1 and the second fixed plate 1-2 are fixed together by a pad 1-3, forming an accommodating space between the first fixed plate 1-1 and the second fixed plate 1-2. The driving gear 5 and the driven gear 6 are placed within the accommodating space. The first fixed plate 1-1 and the second fixed plate 1-2 are connected by the pad 1-3, forming a high-rigidity frame structure. This structure can effectively resist vibrations or deformations that may occur during operation, providing a stable and reliable working environment for gear meshing and encoder 3 sampling. The driving gear 5 and the driven gear 6 are placed within the accommodating space, which can effectively prevent foreign objects such as dust, paper scraps, and oil stains from entering the gear meshing area, extending the service life of the transmission components and ensuring the long-term reliability of signal transmission.

[0022] The adjusting motor 2 is disposed on the outer end face of the first fixed plate 1-1, and the encoder 3 is disposed on the outer end face of the second fixed plate 1-2, so that the adjusting motor 2 and the encoder 3 are distributed opposite to each other. The adjusting motor 2 and the encoder 3 are respectively mounted on the outer sides of the two fixed plates, realizing the isolated distribution of the power unit and the detection unit. This layout ensures that the two do not interfere with each other in physical space, which not only saves space, but also allows the debugging, inspection and maintenance of the equipment to be carried out independently without affecting each other, greatly improving maintainability.

[0023] Furthermore, both the first fixing plate 1-1 and the second fixing plate 1-2 are provided with mounting elongated holes 1-4. Specifically, the opening direction of the mounting elongated holes 1-4 is along the length direction of the first fixing plate 1-1 and the second fixing plate 1-2. The pad 1-3 is connected to the first fixing plate 1-1 and the second fixing plate 1-2 through the cooperation of fasteners and mounting elongated holes 1-4. The fasteners can be bolts. The mounting elongated holes 1-4 provide the necessary adjustment margin for the connection between the pad 1-3 and the fixing plate, and meet the installation of gear sets with various gear ratios, improving the adaptability of the overall structure.

[0024] In one embodiment, the length of the pads 1-3 is 32 mm.

[0025] The gear ratio i between the driving gear 5 and the driven gear 6 is ,in, The number of teeth on the driven gear. The number of teeth on the driven gear; the pitch variation rate λ of the lead screw = in, The original lead screw pitch. The pitch of the lead screw 4 after the change is given; the ratio of the number of teeth of the driving gear to the number of teeth of the driven gear is equal to the rate of change of the lead screw pitch. In another embodiment, the original lead screw 4 has a pitch of 5 mm, and after the increase, the pitch of the lead screw 4 is 10 mm. To ensure that the encoder 3 accurately calculates the actual displacement, the ratio of the number of teeth of the driven gear 6 to the number of teeth of the driving gear 5 is 1:2.

[0026] By adopting the above technical solution, encoder 3 is directly linked to lead screw 4 through a gear set. The gear set increases the rotational speed of the encoder 3's drive shaft. When the pitch of lead screw 4 is increased, the actual displacement can be accurately calculated without changing the original control system. This successfully overcomes the limitations of the original encrypted operating system, realizes the increase in lead screw 4 pitch, and improves the adjustment speed of the baffle.

[0027] 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 and improvements 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 signal transmission device for adjusting the paper feed baffle of a water-based ink printing press, characterized in that, It includes an adjustment motor and an encoder mounted on a support frame. The output shaft of the adjustment motor passes through the support frame and is connected to a lead screw via a coupling. The lead screw is equipped with a drive gear, and the drive shaft of the encoder is equipped with a driven gear that meshes with the drive gear.

2. The water-based ink press paper feed dam adjustment signal transmission device according to claim 1, characterized by, The support frame includes a first fixed plate and a second fixed plate arranged in parallel and spaced apart. The first fixed plate and the second fixed plate are fixed together by a pad, so that a receiving space is formed between the first fixed plate and the second fixed plate, and the driving gear and the driven gear are placed in the receiving space. The adjusting motor is disposed on the outer end face of the first fixed plate, and the encoder is disposed on the outer end face of the second fixed plate, such that the adjusting motor and the encoder are relatively distributed.

3. The water-based ink press paper feed dam adjustment signal transmission device according to claim 2, characterized by, Both the first fixing plate and the second fixing plate are provided with mounting elongated holes, and the pad is connected to the first fixing plate and the second fixing plate through the cooperation of fasteners and mounting elongated holes.

4. The water-based ink press paper feed dam adjustment signal transmission device according to claim 3, characterized by, The opening direction of the mounting elongated hole is set along the length direction of the first fixing plate and the second fixing plate.

5. The water-based ink press paper feed dam adjustment signal transmission device according to claim 2, characterized by, The length of the pad is 32 mm.

6. The water-based ink press fender adjustment signal transmission device of claim 1, wherein, The gear ratio i between the driving gear and the driven gear is ,in, The number of teeth on the driven gear. The number of teeth on the driven gear; the pitch variation rate λ of the lead screw = in, The original lead screw pitch. The pitch of the lead screw after the change is given; the ratio of the number of teeth of the driving gear to that of the driven gear is equal to the rate of change of the lead screw pitch.

7. The water-based ink press fender adjustment signal transmission device of claim 1, wherein, The adjusting motor is an NMRV geared motor.

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