CN219153997U

CN219153997U - Offset press

Info

Publication number: CN219153997U
Application number: CN202320072077.4U
Authority: CN
Inventors: 徐林杰
Original assignee: Cangzhou Zhongtian Packaging Printing Co ltd
Current assignee: Cangzhou Zhongtian Packaging Printing Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-09
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of offset presses and discloses an offset press, which comprises two side frames, wherein an offset printing assembly is arranged between the two side frames, the offset printing assembly comprises an upper embossing roller and a lower embossing roller, a limiting assembly is arranged on the left side of the offset printing assembly inside the two side frames, the limiting assembly comprises a limiting shell, the limiting shell is in sliding connection with the side frames through sliding rods, a third driving motor is arranged outside the limiting shell and between the two sliding rods, a driving screw is arranged at the output end of the third driving motor, the driving screw is connected with the side frames through screw threads in a matched manner, a side groove is formed inside the limiting shell, and a plurality of pulleys are rotatably arranged inside the side groove. According to the utility model, the limit structure for the paper is added, so that the paper is conveyed more stably, and offset quality is prevented from being influenced by paper deviation.

Description

Offset press

Technical Field

The utility model relates to the technical field of offset presses, in particular to an offset press.

Background

Offset printing presses (offset printing press) are one type of lithographic printing press in which the printed image is first printed from the plate onto a blanket cylinder and then transferred from the blanket cylinder to the paper. Offset presses are classified into sheet-fed offset presses and web offset presses according to the manner in which the paper is fed.

Such as chinese issued patent number CN 217622684U (an offset press): including the frame, set up first embossing roller, second embossing roller and be used for driving the driving piece of first embossing roller and second embossing roller in the frame respectively, first embossing roller and second embossing roller rotate with the frame respectively and are connected, be provided with the ink tank in the frame, the top of ink tank is provided with ink feeding mechanism, ink feeding mechanism includes regulation pole, the connecting rod, the ink roller, the cylinder, the mount, mount and frame fixed connection, the cylinder is fixed in on the mount, the output of cylinder rotates with the one end of regulation pole to be connected, the central point of regulation pole rotates with the frame to be connected, the other end that the cylinder was kept away from to the regulation pole rotates with the connecting rod to be connected, the connecting rod rotates with the ink roller to be connected.

In the prior art, when two embossing roller pairs are used for transporting offset printing paper, as the front side and the rear side of the paper are not provided with limiting structures, if offset occurs in the paper transportation process, the whole offset printing is caused to offset, so that the offset printing quality is influenced, and therefore, the offset printing machine is provided.

Disclosure of Invention

(one) solving the technical problems

In order to overcome the defects in the prior art, the utility model provides an offset press, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an offset press, includes two side frames, be provided with offset printing subassembly between two side frames, offset printing subassembly includes impression roller and lower impression roller, the inside left side that is located offset printing subassembly of two side frames is provided with spacing subassembly, spacing subassembly includes spacing shell, spacing shell carries out sliding connection through the slide bar with the side frame, spacing shell outside is located and installs third driving motor between two slide bars, driving screw is installed to third driving motor's output, and driving screw passes through screw-thread fit connection with the side frame, the inside of spacing shell is provided with the side tank, a plurality of pulleys are installed in the inside rotation of side tank.

Preferably, one ends of the outer parts of the upper embossing roller and the lower embossing roller are respectively provided with a transmission shaft, a driving gear is arranged on the outer part of the outer transmission shaft of the upper embossing roller, a transmission gear meshed with the driving gear is arranged on the outer part of the outer transmission shaft of the lower embossing roller, and the lower embossing roller rotates along with the transmission of the transmission gear and the driving gear.

Preferably, a first driving motor is arranged at one end, outside the driving gear, of the outer transmission shaft of the upper embossing roller, the first driving motor is fixedly connected with the side frame through a fixing frame, the output end of the first driving motor is fixedly connected with the transmission shaft of the upper embossing roller, and the first driving motor is used for driving the upper embossing roller.

Preferably, an ink roller is arranged on the right side of the offset printing assembly between the two side frames, and the front end and the rear end of the ink roller are respectively provided with a second driving motor, and the ink roller is used for transmitting ink to the lower imprinting roller.

Preferably, the upper end of the second driving motor is provided with a lifting mechanism, the lifting mechanism is fixedly connected with the second driving motor, the lower part of the ink roller is provided with an ink tank, and the ink tank is fixedly connected with the side frame, so that ink can be conveniently taken in the ink tank.

Preferably, a side plate is installed at the upper end of the lifting mechanism and is fixedly connected with the lifting mechanism, the side plate is fixedly connected with the side frame, and the side plate is used for fixing the lifting mechanism.

(III) beneficial effects

Compared with the prior art, the utility model provides an offset press, which has the following beneficial effects:

1. when the paper is transmitted through the upper embossing roller and the lower embossing roller, the third driving motor is started according to the position of the limiting shell of the width adjustment of the paper, the driving screw rotates, the driving screw and the side frame are in threaded fit, and the driving screw is converted into linear motion of the limiting shell under the sliding of the sliding rod and the side frame, so that the distance between the two limiting shells is changed through horizontal movement of the limiting shell, the paper is limited according to the width adjustment of the paper, the paper is convenient to transmit through the sliding of the matching pulley, the limiting structure of the paper is increased, the paper is conveyed more stably, and offset quality is prevented from being influenced by offset.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the overall internal structure of the present utility model;

fig. 3 is a perspective view of the limiting shell structure of the utility model.

In the figure: 1. a side frame; 2. an upper embossing roller; 3. a lower platen roller; 4. a drive gear; 5. a transmission gear; 6. a first driving motor; 7. a side plate; 8. a lifting mechanism; 9. a second driving motor; 10. an inking roller; 11. an ink tank; 12. a limit shell; 13. a slide bar; 14. a third driving motor; 15. driving a screw; 16. a side groove; 17. and (3) a pulley.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme, referring to fig. 1, 2 and 3, of an offset press, the offset press comprises two side frames 1, an offset printing assembly is arranged between the two side frames 1 and comprises an upper embossing roller 2 and a lower embossing roller 3, a limiting assembly is arranged on the left side of the offset printing assembly inside the two side frames 1 and comprises a limiting shell 12, the limiting shell 12 is in sliding connection with the side frames 1 through sliding rods 13, a third driving motor 14 is arranged outside the limiting shell 12 and between the two sliding rods 13, a driving screw 15 is arranged at the output end of the third driving motor 14, the driving screw 15 is in threaded fit connection with the side frames 1, a side groove 16 is formed inside the limiting shell 12, and a plurality of pulleys 17 are rotatably arranged inside the side groove 16.

When the paper sheet limiting device is used, the third driving motor 14 is started, the driving screw 15 rotates, the driving screw 15 and the side frame 1 are in threaded fit, and the sliding rod 13 and the side frame 1 slide to convert the rotation of the driving screw 15 into the linear motion of the limiting shell 12, so that the limiting shell 12 moves horizontally to change the distance between the two limiting shells 12, and the distance between the two limiting shells is adjusted according to the width of the paper sheet so as to limit the paper sheet. It should be noted that, for the sake of brevity, some conventional apparatuses, such as the lifting mechanism 8, will not be described in detail in this patent.

Referring to fig. 1 and 2, one end of the outer parts of the upper embossing roller 2 and the lower embossing roller 3 is provided with a transmission shaft, a driving gear 4 is mounted on the outer part of the transmission shaft of the outer part of the upper embossing roller 2, a transmission gear 5 in meshed connection with the driving gear 4 is mounted on the outer part of the transmission shaft of the outer part of the lower embossing roller 3, and the lower embossing roller 3 rotates along with the rotation of the upper embossing roller 2 through the transmission of the transmission gear 5 and the driving gear 4.

Referring to fig. 1 and 2, a first driving motor 6 is disposed at one end of the outer transmission shaft of the upper platen roller 2, which is located outside the driving gear 4, and the first driving motor 6 is fixedly connected with the side frame 1 through a fixing frame, an output end of the first driving motor 6 is fixedly connected with the transmission shaft of the upper platen roller 2, and the first driving motor 6 is used for driving the upper platen roller 2.

Referring to fig. 1 and 2, an ink roller 10 is disposed between the two side frames 1 on the right side of the offset printing assembly, and a second driving motor 9 is mounted at both front and rear ends of the ink roller 10, wherein the ink roller 10 is used for transferring ink to the lower platen roller 3.

Referring to fig. 1 and 2, a lifting mechanism 8 is disposed at an upper end of the second driving motor 9, the lifting mechanism 8 is fixedly connected with the second driving motor 9, an ink tank 11 is disposed below the ink roller 10, and the ink tank 11 is fixedly connected with the side frame 1, and the lifting mechanism 8 facilitates lifting of the ink roller 10, so that ink can enter the ink tank 11 to be dipped.

Referring to fig. 1 and 2, a side plate 7 is mounted at the upper end of the lifting mechanism 8, and the side plate 7 is fixedly connected with the lifting mechanism 8, the side plate 7 is fixedly connected with the side frame 1, and the side plate 7 is used for fixing the lifting mechanism 8.

The working principle of the device is as follows: the lifting mechanism 8 is started to enable the second driving motor 9 and the ink roller 10 to lift along with the lifting mechanism, so that the ink roller 10 enters the ink tank 11 and ink in the ink tank 11 is dipped, then the ink roller 10 is lifted to be in contact with the lower embossing roller 3, the second driving motor 9 is started to enable the ink roller 10 to rotate, the ink roller 10 uniformly transmits the ink to the outside of the lower embossing roller 3 to achieve embossing of paper, so that the inking is more uniform, when the paper is transmitted through the upper embossing roller 2 and the lower embossing roller 3, the position of the limiting shell 12 is adjusted according to the width of the paper, the third driving motor 14 is started, the driving screw 15 rotates, the driving screw 15 converts the rotary motion of the driving screw 15 into the linear motion of the limiting shell 12 under the threaded fit of the side frame 1 and the sliding of the sliding rod 13 and the side frame 1, the distance between the two limiting shells 12 is changed, the paper is adjusted according to the width of the paper to limit the paper, and the paper is conveniently transmitted by matching with the sliding of the pulley 17.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Offset press, comprising two side frames (1), characterized in that: be provided with offset printing subassembly between two side bearer (1), offset printing subassembly includes impression roller (2) and lower impression roller (3), the inside left side that is located offset printing subassembly of two side bearer (1) is provided with spacing subassembly, spacing subassembly includes spacing shell (12), spacing shell (12) carry out sliding connection through slide bar (13) with side bearer (1), third driving motor (14) are installed to spacing shell (12) outside being located between two slide bars (13), driving screw (15) are installed to the output of third driving motor (14), and driving screw (15) are connected through screw-thread fit with side bearer (1), the inside of spacing shell (12) is provided with side groove (16), the inside rotation of side groove (16) is installed a plurality of pulleys (17).

2. The offset printing press as recited in claim 1 wherein: the outer end of the upper embossing roller (2) and the outer end of the lower embossing roller (3) are respectively provided with a transmission shaft, a driving gear (4) is arranged outside the outer transmission shafts of the upper embossing roller (2), and a transmission gear (5) meshed and connected with the driving gear (4) is arranged outside the outer transmission shafts of the lower embossing roller (3).

3. Offset press according to claim 2, characterized in that: the outer end, located outside the driving gear (4), of the outer transmission shaft of the upper embossing roller (2) is provided with a first driving motor (6), the first driving motor (6) is fixedly connected with the side frame (1) through a fixing frame, and the output end of the first driving motor (6) is fixedly connected with the transmission shaft of the upper embossing roller (2).

4. The offset printing press as recited in claim 3 wherein: an ink roller (10) is arranged on the right side of the offset printing assembly between the two side frames (1), and a second driving motor (9) is arranged at the front end and the rear end of each ink roller (10).

5. The offset printing press as recited in claim 4 wherein: the upper end of second driving motor (9) is provided with elevating system (8), and elevating system (8) and second driving motor (9) fixed connection, the below of ink roller (10) is provided with ink tank (11), and ink tank (11) and side bearer (1) fixed connection.

6. The offset printing press as recited in claim 5 wherein: the upper end of the lifting mechanism (8) is provided with a side plate (7), the side plate (7) is fixedly connected with the lifting mechanism (8), and the side plate (7) is fixedly connected with the side frame (1).