Printing piece offset printing mechanism

Abstract

The utility model is applicable to the technical field of printing, and provides a printing piece offset printing mechanism which comprises an offset printing mechanism body, the offset printing mechanism body comprises a mounting shell and a paper feeding mechanism, the mounting shell is fixedly mounted on the offset printing mechanism body, and the paper feeding mechanism is arranged on the offset printing mechanism body; the mounting frame is arranged on the mounting shell, a paper pressing roller is assembled on the mounting frame, and the paper pressing roller is used for pressing a printing piece conveyed by the paper feeding mechanism; and the placing frames are symmetrically arranged on the mounting shell, and paper receiving rollers are arranged on the placing frames and used for receiving the printing pieces conveyed by the paper feeding mechanism. According to the printing piece offset printing mechanism provided by the scheme, the printing piece can be printed and processed, the pressure applied to the printing piece by the paper pressing roller can be monitored, the condition that the printing piece is inclined is avoided, and the safety in the printing process of the printing piece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing, and particularly relates to an offset printing mechanism for printed matter. Background Art

[0002] The offset printing mechanism can perform corresponding printing work on printed matter. When the offset printing mechanism prints the printed matter, it is first necessary to convey the printed matter. When the paper feeding mechanism conveys the printed matter, the offset printing mechanism is provided with two pressure rollers to position the printed matter. When the printed matter enters the paper receiving roller, the pressure rollers need to be lifted to release the positioning of the printed matter. When the paper feeding mechanism releases the paper, the pressure rollers will immediately move down to contact the printed matter. However, on some existing offset printing mechanisms, there is often no function to monitor the pressure of the two pressure rollers. When the pressures of the two pressure rollers are inconsistent, the printed matter will be skewed, reducing the offset printing effect of the printed matter. Summary of the Utility Model

[0003] The utility model provides an offset printing mechanism for printed matter, aiming to solve the problem that the existing offset printing mechanism cannot well monitor the pressure of the pressure rollers.

[0004] The utility model is realized as follows: an offset printing mechanism for printed matter, comprising: an offset printing mechanism body, the offset printing mechanism body includes a mounting shell and a paper feeding mechanism, the mounting shell is fixedly installed on the offset printing mechanism body, and the paper feeding mechanism is arranged on the offset printing mechanism body; a mounting frame arranged on the mounting shell, a pressure roller is assembled on the mounting frame, and the pressure roller is used for pressing the printed matter conveyed by the paper feeding mechanism; placing frames symmetrically arranged on the mounting shell, a paper receiving roller is arranged on the placing frames, and the paper receiving roller is used for receiving the printed matter conveyed by the paper feeding mechanism; a paper feeding frame fixedly installed in the mounting shell; a pressure monitoring mechanism arranged on the paper feeding frame, and the pressure monitoring mechanism is used for monitoring the pressure of the pressure roller.

[0005] Preferably, the monitoring mechanism includes: a pressure sensor fixedly installed on the paper feeding frame, the pressure sensor is located directly below the pressure roller; a controller fixedly installed on the paper feeding frame, an alarm is arranged on the controller, and the controller is adapted to the pressure sensor and the alarm.

[0006] Preferably, a rotating mechanism is arranged on the mounting frame, and the rotating mechanism is used for driving the pressure roller to rotate. The rotating mechanism includes: a driving motor fixedly installed on the mounting frame; a mounting shaft rotatably installed on the mounting frame, one end of the mounting shaft is fixedly connected to the output shaft of the driving motor, and the mounting shaft is fixedly connected to the pressure roller.

[0007] Preferably, a driving mechanism is provided on the placing rack, and the driving mechanism is used to drive the paper receiving roller to rotate. The driving mechanism includes: a servo motor fixedly installed on the placing rack; a connecting shaft rotatably installed on the placing rack, one end of the connecting shaft is fixedly connected to the output shaft of the servo motor, and the connecting shaft is fixedly connected to the paper receiving roller.

[0008] Preferably, a plurality of first telescopic rods are fixedly installed on the installation shell. The output shafts of the plurality of first telescopic rods are respectively fixedly connected to the installation rack and the placing rack. The plurality of first telescopic rods are respectively used to adjust the use positions of the paper pressing roller and the paper receiving roller.

[0009] Preferably, a cleaning mechanism is provided on the offset printing mechanism body. The cleaning mechanism is used to clean the impurities adhered to the paper receiving roller and the paper pressing roller. The cleaning mechanism includes: a placing box arranged below the offset printing mechanism body, and a filter bag is arranged in the placing box; a blower fixedly installed on an outer wall of one side of the placing box, and an air inlet end of the blower is communicated with the placing box; a collecting pipe fixedly installed on the installation shell, and the collecting pipe is communicated with the placing box; a plurality of flexible hoses fixedly installed on the collecting pipe; a plurality of second telescopic rods fixedly installed on the collecting pipe, and a cleaning frame is fixedly installed on an output shaft of each of the plurality of second telescopic rods. The cleaning frame is communicated with the flexible hose. A plurality of collecting ports are formed on the cleaning frame, and a cleaning brush is arranged on the cleaning frame.

[0010] Preferably, a plurality of installation grooves are formed on the installation shell, guide rods are fixedly installed in the installation grooves, guide blocks are fixedly installed on both the installation rack and the placing rack, and the guide blocks are slidably connected to the guide rods.

[0011] Preferably, a transparent observation port is arranged on one side of the installation shell, and the transparent observation port is used to view the paper feeding condition inside the installation shell.

[0012] Compared with the related art, the offset printing mechanism for printed matter provided by the present utility model has the following beneficial effects:

[0013] The printed matter is conveyed by the paper feeding mechanism, the paper pressing roller presses and positions the printed matter, the paper receiving roller is used to receive the printed matter and convey it into the offset printing mechanism body for offset printing. The pressure monitoring mechanism can monitor the pressure applied by the paper pressing roller to the printed matter. When the pressures of the two paper pressing rollers are different, the pressure monitoring mechanism will give an alarm, so as to enable the staff to timely understand the situation and thus timely carry out maintenance work, avoid the situation of the printed matter being skewed, and improve the safety during the printing process of the printed matter. Description of the Drawings

[0014] Figure 1The front view structural schematic diagram of an offset printing mechanism provided by the present utility model;

[0015] Figure 2 The front view sectional structural schematic diagram of the present utility model;

[0016] Figure 3 For Figure 2 The enlarged structural schematic diagram of part A shown in

[0017] Figure 4 For Figure 3 The enlarged structural schematic diagram of part B shown in

[0018] Figure 5 For Figure 2 The enlarged structural schematic diagram of part C shown in

[0019] Figure 6 The side view sectional structural schematic diagram of the placement rack, paper receiving roller and driving mechanism in the present utility model;

[0020] Figure 7 The side view sectional structural schematic diagram of the mounting rack, paper pressing roller and rotating mechanism in the present utility model;

[0021] Figure 8 The three - dimensional structural schematic diagram of the cleaning rack in the present utility model.

[0022] Reference numerals: 1, offset printing mechanism body; 101, mounting shell; 102, paper feeding mechanism; 2, mounting rack; 3, paper pressing roller; 4, placement rack; 5, paper receiving roller; 6, paper feeding rack; 7, pressure sensor; 8, controller; 9, alarm; 10, driving motor; 11, mounting shaft; 12, servo motor; 13, connecting shaft; 14, first telescopic rod; 15, placement box; 16, filter bag; 17, fan; 18, collecting pipe; 19, hose; 20, cleaning rack; 21, second telescopic rod. Detailed implementation manners

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above - mentioned accompanying drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above - mentioned accompanying drawings are used to distinguish different objects and are not used to describe a specific order.

[0024] Reference to "embodiment" in this text means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment each time, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] An embodiment of the present utility model provides a printing offset mechanism, as Figure 1-8 shown. The printing offset mechanism includes: an offset mechanism body 1, the offset mechanism body 1 includes a mounting shell 101 and a paper feeding mechanism 102, the mounting shell 101 is fixedly installed on the offset mechanism body 1, and the paper feeding mechanism 102 is arranged on the offset mechanism body 1; a mounting frame 2 arranged on the mounting shell 101, a pressing roller 3 is assembled on the mounting frame 2, and the pressing roller 3 is used to press the printed matter conveyed by the paper feeding mechanism 102; a placing frame 4 symmetrically arranged on the mounting shell 101, a paper receiving roller 5 is arranged on the placing frame 4, and the paper receiving roller 5 is used to receive the printed matter conveyed by the paper feeding mechanism 102; a paper feeding frame 6 fixedly installed in the mounting shell 101; a pressure monitoring mechanism arranged on the paper feeding frame 6, and the pressure monitoring mechanism is used to monitor the pressure of the pressing roller 3.

[0026] It should be noted that on some existing offset mechanisms, there is often no function to monitor the pressure of the two pressing rollers. When the pressures of the two pressing rollers are different, it will cause the printed matter to be skewed, reducing the offset printing effect of the printed matter;

[0027] In this embodiment, when offset printing the printed matter, first, the paper feeding mechanism 102 conveys the printed matter. The paper feeding mechanism 102 conveys the printed matter to the paper feeding frame 6. When it is conveyed below the pressing roller 3, the pressing roller 3 moves down to press and position the printed matter. When the paper receiving roller 5 contacts the printed matter, the pressing roller 3 moves up to disengage from pressing the printed matter. As the paper receiving roller 5 conveys the printed matter to a certain extent, the paper feeding mechanism 102 disengages from contact with the printed matter. At this time, the pressing roller 3 moves down again to press and position the printed matter until the printed matter is conveyed into the offset mechanism body 1 for offset printing. By repeating such operations, the offset printing operation of the printed matter can be continuously carried out;

[0028] When the paper pressing rollers 3 move downward to press and contact the printed matter on the paper feeding rack 6, the two paper pressing rollers 3 will respectively contact two pressure monitoring mechanisms, so that the pressure exerted by the two paper pressing rollers 3 on the printed matter can be monitored. When the pressures of the two paper pressing rollers 3 are different, the pressure monitoring mechanism will give an alarm, so as to enable the staff to timely understand the situation and then carry out maintenance work in a timely manner, avoid the printed matter from being skewed, and improve the safety during the printing process of the printed matter (two paper pressing rollers 3 are arranged in parallel on the mounting shell 101, and two pressure monitoring mechanisms are arranged on the paper feeding rack 6).

[0029] In a further preferred embodiment of the present utility model, the monitoring mechanism includes: a pressure sensor 7 fixedly installed on the paper feeding rack 6, and the pressure sensor 7 is located directly below the paper pressing roller 3; a controller 8 fixedly installed on the paper feeding rack 6, an alarm 9 is arranged on the controller 8, and the controller 8 is adapted to the pressure sensor 7 and the alarm 9.

[0030] In this embodiment, when the paper pressing rollers 3 move downward to press and contact the printed matter on the paper feeding rack 6, the two paper pressing rollers 3 will respectively contact two pressure sensors 7 and exert pressure on the two pressure sensors 7. When the two pressure sensors 7 detect that the pressures of the two paper pressing rollers 3 are different, the pressure sensors 7 send signals to the controller 8. The controller 8 receives and identifies the signals, and then the controller 8 sends instructions to the alarm 9 to make the alarm 9 give an alarm, so as to enable the staff to timely understand the situation and then carry out maintenance work in a timely manner, avoid the printed matter from being skewed, and improve the safety during the printing process of the printed matter.

[0031] In a further preferred embodiment of the present utility model, a rotating mechanism is arranged on the mounting rack 2, and the rotating mechanism is used to drive the paper pressing roller 3 to rotate. The rotating mechanism includes: a driving motor 10 fixedly installed on the mounting rack 2; a mounting shaft 11 rotatably installed on the mounting rack 2, one end of the mounting shaft 11 is fixedly connected to the output shaft of the driving motor 10, and the mounting shaft 11 is fixedly connected to the paper pressing roller 3.

[0032] In this embodiment, when the paper pressing roller 3 is used to press the printed matter, the driving motor 10 is started to drive the mounting shaft 11 to rotate, thereby driving the paper pressing roller 3 to rotate, and further pressing and positioning the printed matter.

[0033] In a further preferred embodiment of the present utility model, a driving mechanism is provided on the placing rack 4, and the driving mechanism is used to drive the paper receiving roller 5 to rotate. The driving mechanism includes: a servo motor 12 fixedly installed on the placing rack 4; a connecting shaft 13 rotatably installed on the placing rack 4, one end of the connecting shaft 13 is fixedly connected to the output shaft of the servo motor 12, and the connecting shaft 13 is fixedly connected to the paper receiving roller 5.

[0034] In this embodiment, when the paper receiving roller 5 is in use, two servo motors 12 are respectively started to drive the two connecting shafts 13 to rotate relatively, so as to drive the two paper receiving rollers 5 to rotate relatively, thereby feeding and conveying the printed matter (two paper receiving rollers 5 and two driving mechanisms are provided on the mounting shell 101).

[0035] In a further preferred embodiment of the present utility model, a plurality of first telescopic rods 14 are fixedly installed on the mounting shell 101, the output shafts of the plurality of first telescopic rods 14 are respectively fixedly connected to the mounting rack 2 and the placing rack 4, and the plurality of first telescopic rods 14 are respectively used to adjust the use positions of the paper pressing roller 3 and the paper receiving roller 5.

[0036] In this embodiment, the first telescopic rod 14 is used to adjust the use positions of the paper pressing roller 3 and the paper receiving roller 5, and at the same time, it is convenient to convey printed matter of different thicknesses.

[0037] In a further preferred embodiment of the present utility model, a cleaning mechanism is provided on the offset printing mechanism body 1, and the cleaning mechanism is used to clean the impurities adhered to the paper receiving roller 5 and the paper pressing roller 3. The cleaning mechanism includes: a placing box 15 provided below the offset printing mechanism body 1, and a filter bag 16 is arranged in the placing box 15; a blower 17 fixedly installed on an outer wall of one side of the placing box 15, and an air inlet end of the blower 17 is communicated with the placing box 15; a collecting pipe 18 fixedly installed on the mounting shell 101, and the collecting pipe 18 is communicated with the placing box 15; a plurality of flexible hoses 19 fixedly installed on the collecting pipe 18; a plurality of second telescopic rods 21 fixedly installed on the collecting pipe 18, and a cleaning frame 20 is fixedly installed on the output shafts of the plurality of second telescopic rods 21. The cleaning frame 20 is communicated with the flexible hose 19, a plurality of collecting ports are opened on the cleaning frame 20, and a cleaning brush is arranged on the cleaning frame 20.

[0038] In this embodiment, when it is necessary to clean the paper pressing roller 3 and the paper receiving roller 5, first, a plurality of second telescopic rods 21 drive the corresponding cleaning frames 20 to move and contact the paper pressing roller 3 and the paper receiving roller 5 respectively, and at the same time, the paper pressing roller 3 and the paper receiving roller 5 are rotated. Then, the blower 17 is started to form a negative pressure inside the cleaning frame 20. During the rotation of the paper pressing roller 3 and the paper receiving roller 5, the cleaning brushes on the cleaning frame 20 clean the dust, and at the same time, the cleaned dust enters the collection pipe 18 through the hose 19 and is then collected into the filter bag 16, so that the impurities adhered to the paper pressing roller 3 and the paper receiving roller 5 can be cleaned, the cleanliness of the paper pressing roller 3 and the paper receiving roller 5 is improved, and thus the printing effect of the printed matter is improved.

[0039] In a further preferred embodiment of the present invention, a plurality of mounting grooves are formed in the mounting shell 101, guide rods 22 are fixedly installed in the mounting grooves, guide blocks 23 are fixedly installed on both the mounting frame 2 and the placement frame 4, and the guide blocks 23 are slidably connected to the guide rods 22.

[0040] In this embodiment, the stability of the mounting frame 2 and the placement frame 4 during use can be improved by the guide rods 22 and the guide blocks 23.

[0041] In a further preferred embodiment of the present invention, a transparent observation port is provided on one side of the mounting shell 101, and the transparent observation port is used to view the paper feeding situation inside the mounting shell 101.

[0042] In this embodiment, the transparent observation port is used to view the paper feeding situation inside the mounting shell 101.

[0043] In summary, compared with the related art, the printed matter is conveyed by the paper feeding mechanism 102, the paper pressing roller 3 presses and positions the printed matter, the paper receiving roller 5 is used to receive the printed matter and convey it to the offset printing mechanism body 1 for offset printing. The pressure monitoring mechanism can monitor the pressure applied by the paper pressing roller 3 to the printed matter. When the pressures of the two paper pressing rollers 3 are different, the pressure monitoring mechanism will give an alarm, so that the staff can timely understand the situation and thus carry out maintenance work in a timely manner, avoiding the situation of the printed matter being skewed and improving the safety during the printing process of the printed matter.

[0044] It should be noted that the circuits, electronic components and modules involved in the present invention are all prior arts, which can be completely realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve the improvement of software and methods.

[0045] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0046] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete or make other adjustments to the features in the various embodiments of the present utility model according to the circumstances, so as to obtain different technical solutions that essentially do not depart from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. An offset printing mechanism for printed matter, characterized in that, Comprising: The offset printing mechanism body (1), the offset printing mechanism body (1) includes a mounting shell (101) and a paper feeding mechanism (102), the mounting shell (101) is fixedly installed on the offset printing mechanism body (1), and the paper feeding mechanism (102) is arranged on the offset printing mechanism body (1); A mounting frame (2) arranged on the mounting shell (101), a paper pressing roller (3) is assembled on the mounting frame (2), and the paper pressing roller (3) is used to press the printed matter conveyed by the paper feeding mechanism (102); Placing frames (4) symmetrically arranged on the mounting shell (101), a paper receiving roller (5) is arranged on the placing frames (4), and the paper receiving roller (5) is used to receive the printed matter conveyed by the paper feeding mechanism (102); A paper feeding frame (6) fixedly installed inside the mounting shell (101); A pressure monitoring mechanism arranged on the paper feeding frame (6), and the pressure monitoring mechanism is used to monitor the pressure of the paper pressing roller (3).

2. The offset printing mechanism for printed matter according to claim 1, characterized in that, The monitoring mechanism includes: A pressure sensor (7) fixedly installed on the paper feeding frame (6), and the pressure sensor (7) is located directly below the paper pressing roller (3); A controller (8) fixedly installed on the paper feeding frame (6), an alarm (9) is arranged on the controller (8), and the controller (8), the pressure sensor (7) and the alarm (9) are all adapted to each other.

3. The offset printing mechanism for printed matter according to claim 1, characterized in that, A rotating mechanism is arranged on the mounting frame (2), and the rotating mechanism is used to drive the paper pressing roller (3) to rotate. The rotating mechanism includes: A driving motor (10) fixedly installed on the mounting frame (2); A mounting shaft (11) rotatably installed on the mounting frame (2), one end of the mounting shaft (11) is fixedly connected to the output shaft of the driving motor (10), and the mounting shaft (11) is fixedly connected to the paper pressing roller (3).

4. The offset printing mechanism for printed matter according to claim 1, wherein A driving mechanism is arranged on the placing frame (4), and the driving mechanism is used to drive the paper receiving roller (5) to rotate. The driving mechanism includes: A servo motor (12) fixedly installed on the placing frame (4); A connecting shaft (13) rotatably installed on the placing frame (4), one end of the connecting shaft (13) is fixedly connected to the output shaft of the servo motor (12), and the connecting shaft (13) is fixedly connected to the paper receiving roller (5).

5. The offset printing mechanism for printed matter according to claim 1, characterized in that, A plurality of first telescopic rods (14) are fixedly installed on the mounting shell (101), the output shafts of the plurality of first telescopic rods (14) are respectively fixedly connected to the mounting frame (2) and the placing frame (4), and the plurality of first telescopic rods (14) are respectively used to adjust the use positions of the paper pressing roller (3) and the paper receiving roller (5).

6. The offset printing mechanism for printed matter according to claim 1, characterized in that, A cleaning mechanism is arranged on the offset printing mechanism body (1), and the cleaning mechanism is used to clean the impurities adhered to the paper receiving roller (5) and the paper pressing roller (3). The cleaning mechanism includes: A placing box (15) arranged below the offset printing mechanism body (1), and a filter bag (16) is arranged inside the placing box (15); A blower (17) fixedly installed on an outer wall of one side of the placement box (15), and an air inlet end of the blower (17) is communicated with the placement box (15); A collecting pipe (18) fixedly installed on the installation shell (101), and the collecting pipe (18) is communicated with the placement box (15); A plurality of flexible hoses (19) fixedly installed on the collecting pipe (18); A plurality of second telescopic rods (21) fixedly installed on the collecting pipe (18), output shafts of the plurality of second telescopic rods (21) are fixedly installed with cleaning frames (20), the cleaning frames (20) are communicated with the flexible hoses (19), a plurality of collecting ports are formed in the cleaning frames (20), and cleaning brushes are arranged on the cleaning frames (20).

7. The offset printing mechanism for printed matter according to claim 1, characterized in that, A plurality of installation grooves are formed in the installation shell (101), guide rods (22) are fixedly installed in the installation grooves, guide blocks (23) are fixedly installed on both the installation frame (2) and the placement frame (4), and the guide blocks (23) are slidably connected with the guide rods (22).

8. The offset printing mechanism for printed matter according to claim 1, wherein A transparent observation port is arranged on one side of the installation shell (101), and the transparent observation port is used for checking the paper feeding condition in the installation shell (101).

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