Thin paper printing and collecting mechanism of offset press

Abstract

According to the technical scheme, the thin paper printing and collecting mechanism is characterized in that the thin paper printing and collecting mechanism comprises wallboards, installation supports are installed at the inner ends of a pair of wallboards, the installation supports are symmetrically distributed, the inner sides of the pair of installation supports are movably connected with a fan frame, and the inner sides of the fan frame are fixedly connected with the wallboards. The inner end of the fan frame is movably connected with a fan structure, and a plurality of air blowing devices are movably inserted into a gap in the bottom side of the fan structure; a plurality of rows of air blowing devices are arranged, air blowing nozzles are reasonably arranged on each air blowing pipe, universal balls are arranged in the air blowing nozzles, the angle can be adjusted at will, the air volume of each air blowing nozzle can be controlled, and the front-back positions of the air blowing pipes and the air volume of each air blowing pipe can be adjusted according to the breadth size and the material of printing paper. The machine can adapt to paper with different gram weights and different breadths during high-speed operation, the paper can be collected and tidied, the working efficiency is greatly improved, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of printing paper receiving mechanisms, and in particular to a paper receiving mechanism for offset printing machine thin paper printing. Background Technology

[0002] Currently, double-sided monochrome (multicolor) offset printing presses have achieved a high degree of automation due to the adoption of computer programmable control technology, which coordinates the entire machine's operation through a processor. The conjugate cam-driven centering pendulum gripper mechanism effectively reduces machine vibration and noise through high-point gripper closing and smooth transmission design, thus improving the stability of the printing process. The main motor uses frequency modulation technology, which is not only highly efficient but also consumes less energy, achieving the goal of energy saving and emission reduction. The high stacking paper design allows the machine to operate continuously without stopping, improving production efficiency. Therefore, it has now become the mainstream of modern paper printing.

[0003] The structure of a double-sided monochrome (multicolor) offset printing press mainly includes a paper feeding unit, a front conveyor unit, a frame unit, a back printing unit, a front printing unit, and a paper receiving unit. These units work together to achieve printing on both sides of the paper. Among them, the paper receiving unit, as the last link in the printing process, is responsible for receiving and sorting the printed paper. The paper receiving unit is usually equipped with a chain paper receiving device, a paper receiving table air blowing device, a photoelectric automatic detection and lowering device, a paper receiving table full paper detection device, a paper receiving table rapid lifting device, a paper receiving static eliminator, and a paper receiving table lower limit switch. These devices work together to ensure that the printed paper can be effectively collected and sorted, avoiding paper mess or damage, and also preparing for subsequent printing work.

[0004] Existing paper delivery mechanisms for thin paper printing have certain drawbacks. First, there is no blowing device between the delivery roller and the front guide. When the machine is running at high speed, it cannot adapt to paper of different weights and sizes, resulting in messy paper delivery, incomplete paper collection, low work efficiency, and paper waste. The delivery roller only has one ion bar electrostatic eliminator between the delivery roller and the front guide, which cannot eliminate static electricity on the paper, causing the paper to stick together and not be able to be separated, making it impossible to arrange the paper neatly. In addition, static electricity on the paper will also attract paper dust and other impurities, affecting the printing quality. Furthermore, static electricity also poses certain safety hazards. Although the existing fans are large, the air volume is generally small, and the number is small. The front and rear of the fans cannot be adjusted independently, so they cannot fully cover various paper sizes or meet the printing needs of paper of different weights. The machine's operating speed cannot be increased, resulting in low work efficiency. Therefore, we propose a paper delivery mechanism for offset printing machines for thin paper printing. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a paper receiving mechanism for offset printing machines that prints thin paper. By setting up a blowing device, this mechanism has multiple rows of blowing devices from the paper receiving roller to the front paper stop. Each blowing pipe has a reasonably arranged blowing nozzle, which is equipped with a universal ball, allowing for arbitrary angle adjustment and control of the air volume of each blowing nozzle. Furthermore, the front and rear positions of the blowing pipes and the air volume of each blowing pipe can be adjusted according to the size and material of the printed paper. This allows the mechanism to achieve positional adjustability, enabling it to adapt to paper of different weights and sizes when the machine is running at high speed. It can not only collect the paper neatly but also greatly improve work efficiency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A paper receiving mechanism for offset printing machine includes wall panels. A pair of wall panels have mounting brackets installed at their inner ends, and the mounting brackets are symmetrically distributed. A fan frame is movably connected to the inner side of each pair of mounting brackets. A fan structure is movably connected to the inner end of each fan frame. Several air-blowing devices are movably inserted through the gap at the bottom side of the fan structure. Each air-blowing device includes an air-blowing pipe, and an air inlet bend is sleeved on the outer end of the air-blowing pipe.

[0008] By installing a blower, it can accommodate papers of different weights and sizes, which not only helps to collect the papers but also greatly improves work efficiency.

[0009] Furthermore, several static eliminators are installed on the bottom side of the fan structure, and the static eliminators are located in the gaps on the bottom side of the fan frame.

[0010] By installing a blower-type static eliminator, static electricity removal can be achieved for paper of different sizes, enhancing the machine's adaptability.

[0011] Furthermore, the inner end of the fan frame is rotatably connected to multiple fan structures.

[0012] By installing a fan structure, it can fully cover various paper sizes and meet the printing needs of paper with different weights, thus satisfying the customer's usage requirements.

[0013] Furthermore, the blower tube is provided with a plurality of blower nozzles arranged at intervals on its upper side, and the blower nozzles are connected to the inner end of the blower tube.

[0014] By installing a blower nozzle, which, together with the blower tube, can effectively blow out the wind energy transmitted by the blower, the structure can evenly transmit wind energy, thus improving the convenience of the structure's transmission.

[0015] Furthermore, the inner end of the fan frame is threaded with multiple screws.

[0016] By installing screws, the assembly and combination of the mechanisms can be made more convenient.

[0017] Furthermore, the outer end of the fan frame is equipped with assembly rods, which are symmetrically distributed.

[0018] The assembly of this mechanism is made easier by installing an assembly rod.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. By setting up a blowing device, this mechanism has multiple rows of blowing devices from the paper receiving roller to the front paper stop. The blowing devices are interspersed in the gaps at the bottom of the fan frame. Each blowing pipe has a reasonable arrangement of blowing nozzles. The blowing nozzles are equipped with universal balls, which can not only adjust the angle arbitrarily, but also control the air volume of each blowing nozzle. In addition, according to the size and material of the printed paper, the front and rear positions of the blowing pipes and the air volume of each blowing pipe can be adjusted, which makes the mechanism position adjustable. When the machine is running at high speed, it can adapt to paper of different weights and sizes, which can not only collect the paper, but also greatly improve work efficiency and reduce the labor intensity of workers.

[0021] 2. By setting up blower static eliminators, multiple blower static eliminators with airflow are installed from the take-up roller to the front paper guide. These blower static eliminators are also interspersed in the gaps at the bottom of the fan frame. The blower static eliminators are ion bar static elimination structures. The original one is retained, and several additional blower static eliminators with airflow are added. They can be moved back and forth according to the paper size. The positions of multiple blower static eliminators with airflow are adjustable. These ion bars can not only eliminate static electricity on the paper, preventing the papers from sticking together and arranging them neatly, but also help remove paper dust and other impurities, improving printing quality. In addition, they can also eliminate certain safety hazards. After adjusting the placement of several blower static eliminators, static electricity removal can be achieved for full coverage of different paper sizes, enhancing the machine's adaptability.

[0022] 3. By designing a fan structure that differs from traditional structures, this new structure utilizes small, high-volume, and low-noise fans. It employs a multi-row fan frame, with several fans arranged in each row to fully cover the paper surface. Each row can be individually adjusted forward and backward according to the paper size. The fan structure features a compact arrangement; although there are many fans, the fan units are small, yet the airflow is large and the noise is low. Furthermore, the individual forward and backward adjustment of the fans ensures comprehensive coverage of various paper sizes and can accommodate printing on paper of different weights. Even at high speeds, the machine collects paper neatly, meeting customer needs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0024] Figure 2 This is a three-dimensional structural diagram of the fan frame in this embodiment;

[0025] Figure 3 This is a schematic diagram of the front view plane in this embodiment;

[0026] Figure 4 This is a schematic diagram of the structure in the top view of this embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of the airflow adjustment switch plane in this embodiment;

[0028] Figure 6 This is a three-dimensional structural diagram of the blower device in this embodiment.

[0029] In the diagram, 1 is the wall panel; 101 is the mounting bracket; 2 is the fan frame; 3 is the screw; 4 is the fan structure; 5 is the blower; 501 is the blower duct; 502 is the air inlet bend; 503 is the blower nozzle; 8 is the blower static eliminator; and 9 is the assembly rod. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0032] Reference Figure 1-6 As shown, a paper receiving mechanism for thin paper printing in an offset printing machine is provided in a preferred embodiment of the present invention. It includes a wall panel 1. A mounting bracket 101 is installed on the inner end of each pair of wall panels 1. The mounting brackets 101 are symmetrically distributed. A fan frame 2 is movably connected to the inner side of the pair of mounting brackets 101. A fan structure 4 is movably connected to the inner end of the fan frame 2. Several air blowing devices 5 are movably inserted in the gap at the bottom side of the fan structure 4. The air blowing device 5 includes an air blowing pipe 501. An air inlet bend 502 is sleeved on the outer end of the air blowing pipe 501.

[0033] By installing the blowing device 5, this mechanism has multiple rows of blowing devices 5 from the paper receiving roller to the front paper stop. Each blowing pipe 501 has a reasonably arranged blowing nozzle 503. The blowing nozzle 503 has a universal ball, which can not only adjust the angle arbitrarily, but also control the air volume of each blowing nozzle 503. In addition, according to the size and material of the printed paper, the front and rear positions of the blowing pipe 501 and the air volume of each blowing pipe 501 can be adjusted. The air inlet bend 502 is connected to the control switch and the air pump through the pipeline. Each blowing pipe 501 has multiple internally connected blowing nozzles 503 on its outer circle. The blowing device 5 is equipped with an air volume adjustment switch, which can control the blowing device 5 to turn on, making it convenient to control the air volume of the blowing device 5. This allows the mechanism to be position adjustable. When the machine is running at high speed, it can adapt to paper of different weights and sizes, which can not only collect the paper, but also greatly improve work efficiency and reduce the labor intensity of workers.

[0034] Reference Figure 1-3 As shown, several static eliminators 8 are installed on the bottom side of the fan structure 4, and the static eliminators 8 are located in the gaps on the bottom side of the fan frame 2.

[0035] By installing blower static eliminators 8, which are connected to the air compressor via pipelines, the blower static eliminators 8 are interspersed in the gaps at the bottom of the fan frame 2. Four blower static eliminators 8 with airflow are installed from the take-up roller to the front paper guide. These blower static eliminators 8 are ion bar static elimination structures; one original ion bar is retained, and the additional few are blower static eliminators 8 with airflow. They can be moved back and forth according to the paper size, and the positions of multiple blower static eliminators 8 are adjustable. These ion bars not only eliminate static electricity on the paper, preventing it from sticking together and ensuring neat arrangement, but also help remove paper dust and other impurities, improving printing quality. Furthermore, they can eliminate certain safety hazards. After adjusting the placement of several blower static eliminators 8, static electricity removal can be achieved for full coverage of different paper sizes, enhancing the machine's adaptability.

[0036] Reference Figure 1 and Figure 4 As shown, multiple fan structures 4 are rotatably connected to the inner end of the fan frame 2.

[0037] By installing fan structure 4, which differs from traditional structures, a new type of fan is used that is small in size, has a large air volume, and is low in noise. Multiple fan frames 2 are movably arranged on the mounting bracket 101 and can be adjusted according to the paper size. Each fan frame 2 has multiple fan mounting ports, which are symmetrically arranged. Several rows of fan frames 2 are used, with several fan structures 4 arranged on each row to cover the entire paper surface. Each row can be adjusted forward and backward according to the paper size. The fan structures 4 are compactly arranged, with several fans in each row. Although there are many fans, each fan body is small in size, has a large air volume, and is low in noise. At the same time, the forward and backward adjustment of the fans can fully cover various paper sizes and meet the printing needs of different paper weights. When the machine is running at high speed, the paper is collected neatly, meeting the customer's usage needs.

[0038] Reference Figure 1 , Figure 5 and Figure 6 As shown, multiple air nozzles 503 are arranged at intervals on the upper part of the air blowing pipe 501, and the air nozzles 503 are connected to the inner end of the air blowing pipe 501.

[0039] By installing the blower nozzle 503, the blower nozzle 503, together with the blower pipe 501, can effectively blow out the wind energy transmitted by the blower device 5, allowing the structure to conduct wind energy evenly.

[0040] Reference Figure 1-3 As shown, the inner end of the fan bracket 2 is threaded with multiple screws 3.

[0041] By installing screws 3, the stability of the connection between the fan bracket 2 and the fan structure 4 can be increased. When the screws 3 are loosened, each fan bracket 2 can be moved, making the assembly and combination of the mechanism structures more convenient.

[0042] Reference Figure 1 As shown, the outer end of the fan frame 2 is equipped with an assembly rod 9, which is symmetrically distributed.

[0043] By installing assembly rods 9, multiple assembly rods 9 can increase the stability of the connection between the whole device and the wall panel 1, making the assembly of the mechanism convenient.

[0044] Specific implementation process: Multiple small-sized, high-volume, and low-noise new fans are installed, using a multi-row fan frame 2. Each row of fan frame 2 has several fan structures 4 to cover the entire paper surface. Each row can be individually adjusted forward and backward according to the paper size. The fan structures 4 are arranged compactly, with several fans per row. Although there are many fans, each fan is small in size, has a large air volume, and low noise. The fans can be individually adjusted forward and backward, fully covering various paper sizes and meeting the printing needs of different paper weights. At high speeds, the paper is neatly collected. Multiple rows of blowing devices 5 are installed from the paper collection roller to the front guide. An air volume adjustment switch controls the activation of the multiple rows of blowing devices 5. Each blowing pipe 501 has a reasonably arranged blowing nozzle 503, which has a universal ball joint, allowing for arbitrary angle adjustment and control of the air volume of each nozzle 503. The air volume can be adjusted according to the size and material of the printed paper. The position of the air duct 501 and the air volume of each air duct 501 allow the mechanism to be adjusted. When the machine is running at high speed, it can adapt to paper of different weights and sizes, which can not only collect the paper but also greatly improve work efficiency. Several air-blowing static eliminators 8 are installed from the take-up roller to the front paper stop. The air-blowing static eliminators 8 are ion bar static elimination structures. The original one is retained, and several additional air-blowing static eliminators 8 are added. They can be moved back and forth according to the size of the paper. The positions of multiple air-blowing static eliminators 8 are adjustable. These ion bars can not only eliminate static electricity on the paper and prevent the paper from sticking together and arranging neatly, but also help remove paper dust and other impurities, improving printing quality. In addition, they can also eliminate certain safety hazards. After the positions of multiple air-blowing static eliminators 8 are adjusted, static electricity removal can be achieved for full coverage of paper of different sizes, enhancing the adaptability of the machine.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paper receiving mechanism for thin paper printing on an offset printing machine, characterized in that: The system includes a wall panel (1), and a mounting bracket (101) is installed on the inner end of each pair of wall panels (1). The mounting brackets (101) are symmetrically distributed. A fan frame (2) is movably connected to the inner side of each pair of mounting brackets (101). A fan structure (4) is movably connected to the inner end of the fan frame (2). Several air blowing devices (5) are movably inserted in the gap at the bottom side of the fan structure (4). The air blowing device (5) includes an air blowing pipe (501). An air inlet bend (502) is sleeved on the outer end of the air blowing pipe (501).

2. The offset printing machine thin paper receiving mechanism according to claim 1, characterized in that: Several blower static eliminators (8) are installed on the bottom side of the fan structure (4), and the blower static eliminators (8) are located in the gaps on the bottom side of the fan frame (2).

3. The offset printing machine thin paper receiving mechanism according to claim 2, characterized in that: The inner end of the fan frame (2) is rotatably connected to multiple fan structures (4).

4. The offset printing machine thin paper receiving mechanism according to claim 1, characterized in that: The blower tube (501) is provided with a plurality of blower nozzles (503) arranged at intervals on the upper part, and the blower nozzles (503) are connected to the inner end of the blower tube (501).

5. The offset printing machine thin paper receiving mechanism according to claim 1, characterized in that: The inner end of each fan frame (2) is threaded with multiple screws (3).

6. The offset printing machine thin paper receiving mechanism according to claim 5, characterized in that: The fan frame (2) is equipped with an assembly rod (9) at its outer end, and the assembly rod (9) is symmetrically distributed.

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