Transmission mechanism of printing machine

Abstract

The transmission mechanism of the printing machine comprises a mounting frame, a fixing frame and a printing head assembly, the fixing frame is fixedly mounted at the bottom of the mounting frame, a ball screw is mounted in the fixing frame through a bearing, the printing head assembly is mounted outside the ball screw through a nut, and a displacement sensor is arranged on the other side of the top of the printing head assembly. An encoder is arranged on one side of the ball screw, a speed reducer is fixedly installed on the other side of the exterior of the fixing frame, and a servo motor is arranged at the input end of the speed reducer. When the transmission mechanism is used, electric driving and digital control technologies are combined, the structural design is optimized, and the existing belt and chain design is replaced, so that the precision and the speed of the transmission mechanism can be improved, the noise and the vibration are reduced, the printing quality is improved, and the stability and the comfort of a machine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a transmission mechanism of a printing press. Background Art

[0002] Traditional printing press transmission mechanisms usually use mechanical transmission methods, and use mechanical parts such as gears, chains and belts to achieve the motion transmission of the printing press. However, it is found during use that these transmission methods usually have the following disadvantages:

[0003] 1. Since motion is transmitted through mechanical parts such as gears, chains and belts, errors are prone to occur.

[0004] 2. The mechanical transmission method generates a lot of noise, which affects the working environment and the health of operators.

[0005] 3. The mechanical transmission method has low precision, making it difficult to achieve high-speed and high-precision printing. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission mechanism for a printing press to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission mechanism of a printing machine, comprising a mounting frame, a fixing frame and a printing head assembly, the fixing frame is fixedly installed on the bottom of the mounting frame, a ball screw is installed inside the fixing frame through a bearing, two sets of linear guide rails are fixedly installed inside the fixing frame, the printing head assembly is installed on the outside of the ball screw through a nut, a line interface is provided on one side of the top of the printing head assembly, a displacement sensor is provided on the other side of the top of the printing head assembly, an encoder is provided on one side of the ball screw, and the encoder is fixed on the outside of the fixing frame, a reducer is fixedly installed on the other side of the outside of the fixing frame, and a servo motor is provided at the input end of the reducer.

[0008] When in use, the printing press control system controls the servo motor to power on and run, and the servo motor drives the reducer and then drives the ball screw to rotate. When the ball screw rotates, it drives the print head assembly to move through the nut. When the servo motor rotates forward and reverse, the print head assembly moves left and right, replacing the existing belt and chain design. The print head assembly is the printing mechanism of the printing press. The servo motor has the advantages of high precision, high speed and low noise. The ball screw has the advantages of high precision, high rigidity and high wear resistance. The linear guide has the advantages of high precision, high rigidity and high load-bearing capacity. In addition, through the use of encoders and displacement sensors, high-precision and high-speed position and speed monitoring can be achieved. Electric drive and combined with digital control technology are used to optimize the structural design to replace the existing belt and chain design, which can improve the accuracy and speed of the transmission mechanism, reduce noise and vibration, improve printing quality, and improve the stability and comfort of the machine.

[0009] Preferably, the printing head assembly is sleeved outside the linear guide rail, and the printing head assembly moves axially along the linear guide rail.

[0010] The linear guide rail can limit the sliding position of the print head assembly, thereby improving the stability of the print head assembly when sliding.

[0011] Preferably, a mounting bolt is installed penetratingly inside the mounting frame, and a slot is provided inside the mounting frame.

[0012] The mounting bracket can be stably mounted at a designated position by means of the mounting bolts, and the weight of the mounting bracket can be reduced by means of the slots, thereby reducing the production cost of the mounting bracket.

[0013] Preferably, the encoder is electrically connected to the displacement sensor and the servo motor.

[0014] The encoder is electrically connected to the displacement sensor and servo motor, and also needs to be connected to the printing press control system. The servo motor has the advantages of high precision, high speed, and low noise, and can accurately control the number of its rotations. The encoder can record the rotation data of the ball screw, and the displacement sensor can record the displacement data of the printing head assembly. By integrating the data, the device can control the reducer for precise rotation.

[0015] Preferably, the output end of the reducer is transmission-connected to a ball screw.

[0016] The servo motor drives the reducer to operate, and the reducer can drive the ball screw to rotate forward and reversely. The forward and reverse rotation of the ball screw can drive the printing head assembly to move horizontally through the nut.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] When the utility model is in use, the servo motor drives the ball screw to drive the printing head assembly to move, and the encoder and the displacement sensor are used in coordination to achieve high-precision and high-speed position and speed monitoring. The electric drive and digital control technology are adopted to replace the existing belt and chain design through the optimized structural design, so as to improve the accuracy and speed of the transmission mechanism, reduce noise and vibration, improve printing quality, and improve the stability and comfort of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 It is a front structural schematic diagram of the utility model.

[0022] In the figure: 1. mounting frame; 101. mounting bolt; 102. slot; 2. fixing frame; 201. ball screw; 202. encoder; 203. guide rail; 3. printing head assembly; 301. line interface; 302. displacement sensor; 4. reducer; 401. servo motor. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model proposes a transmission mechanism of a printing machine, including a mounting frame 1, a fixing frame 2 and a printing head assembly 3, the fixing frame 2 is fixedly installed on the bottom of the mounting frame 1, the interior of the fixing frame 2 is fixedly installed with a ball screw 201 through a bearing, the interior of the fixing frame 2 is fixedly installed with two sets of linear guide rails 203, the exterior of the ball screw 201 is installed with the printing head assembly 3 through a nut, a line interface 301 is arranged on one side of the top of the printing head assembly 3, a displacement sensor 302 is arranged on the other side of the top of the printing head assembly 3, an encoder 202 is arranged on one side of the ball screw 201, and the encoder 202 is fixed on the outside of the fixing frame 2, a reducer 4 is fixedly installed on the other side of the outside of the fixing frame 2, and a servo motor 401 is arranged on the input end of the reducer 4.

[0026] The working principle of the transmission mechanism of the printing press based on the first embodiment is: when in use, the printing press control system controls the servo motor 401 to be powered on and run, the servo motor 401 drives the reducer 4, and then drives the ball screw 201 to rotate, and when the ball screw 201 rotates, it will drive the print head assembly 3 to move through the nut, and when the servo motor 401 rotates forward and reverse, the print head assembly 3 will move left and right, replacing the existing belt and chain design, wherein the print head assembly 3 is the printing mechanism of the printing press, the servo motor 401 has the advantages of high precision, high speed, low noise, etc., the ball screw 201 has the advantages of high precision, high rigidity, high wear resistance, etc., the linear guide 203 has the advantages of high precision, high rigidity, high load-bearing capacity, etc., and through the coordinated use of the encoder 202 and the displacement sensor 302, high-precision, high-speed position and speed monitoring can be achieved, and the electric drive and the combination of digital control technology are adopted, and the existing belt and chain design is replaced by optimizing the structural design, so as to improve the precision and speed of the transmission mechanism, reduce noise and vibration, improve printing quality, and improve the stability and comfort of the machine.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 3 As shown, the transmission mechanism of a printing machine proposed by the utility model, compared with the first embodiment, this embodiment also includes: a printing head assembly 3 is sleeved on the outside of the linear guide rail 203, and the printing head assembly 3 moves axially along the linear guide rail 203, a mounting bolt 101 is installed through the inside of the mounting frame 1, a slot 102 is opened inside the mounting frame 1, the encoder 202 is electrically connected to the displacement sensor 302 and the servo motor 401, and the output end of the reducer 4 is transmission-connected to the ball screw 201.

[0029] In this embodiment, Figure 1 As shown, the linear guide rail 203 can limit the sliding position of the print head assembly 3, thereby improving the stability of the print head assembly 3 when sliding; Figure 1 As shown, the mounting bracket 1 can be stably mounted at a designated position by means of the mounting bolt 101, and the weight of the mounting bracket 1 can be reduced by means of the slot 102, while the production cost of the mounting bracket 1 can be reduced; Figure 3 As shown, the encoder 202 is electrically connected to the displacement sensor 302 and the servo motor 401, and also needs to be connected to the control system of the printing press. The servo motor 401 has the advantages of high precision, high speed, low noise, etc., and can accurately control the number of its rotations. The encoder 202 can record the rotation data of the ball screw 201, and the displacement sensor 302 can record the displacement data of the printing head assembly 3. By integrating the data, the device can control the reducer 4 to rotate accurately; as shown in FIG. Figure 3As shown, the servo motor 401 drives the reducer 4 to operate, and the reducer 4 can drive the ball screw 201 to rotate forward and reversely. The forward and reverse rotation of the ball screw 201 can drive the printing head assembly 3 to move horizontally through the nut.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A transmission mechanism of a printing press, comprising a mounting frame (1), a fixing frame (2) and a printing head assembly (3), characterized in that: A fixing frame (2) is fixedly mounted on the bottom of the mounting frame (1); a ball screw (201) is mounted inside the fixing frame (2) via a bearing; two sets of linear guide rails (203) are fixedly mounted inside the fixing frame (2); a printing head assembly (3) is mounted outside the ball screw (201) via a nut; a line interface (301) is arranged on one side of the top of the printing head assembly (3); a displacement sensor (302) is arranged on the other side of the top of the printing head assembly (3); an encoder (202) is arranged on one side of the ball screw (201), and the encoder (202) is fixed on the outside of the fixing frame (2); a reducer (4) is fixedly mounted on the other side of the outside of the fixing frame (2); and a servo motor (401) is arranged at the input end of the reducer (4).

2. The transmission mechanism of a printing press according to claim 1, characterized in that: The printing head assembly (3) is sleeved on the outside of the linear guide rail (203), and the printing head assembly (3) moves axially along the linear guide rail (203).

3. The transmission mechanism of a printing press according to claim 1, characterized in that: A mounting bolt (101) is installed through the interior of the mounting frame (1), and a slot (102) is provided inside the mounting frame (1).

4. The transmission mechanism of a printing press according to claim 1, characterized in that: The encoder (202) is electrically connected to the displacement sensor (302) and the servo motor (401).

5. The transmission mechanism of a printing press according to claim 1, characterized in that: The output end of the reducer (4) is transmission-connected to the ball screw (201).

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