CN216153381U

CN216153381U - Paper preheating device of printing machine

Info

Publication number: CN216153381U
Application number: CN202121932138.7U
Authority: CN
Inventors: 石呈杨
Original assignee: Yueqing Moxiang Color Printing Packaging Co ltd
Current assignee: Yueqing Moxiang Color Printing Packaging Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-04-01
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a paper preheating device of a printing machine, which adopts the technical scheme that the paper preheating device comprises a paper feeding conveying device and a guide frame, wherein the guide frame is arranged above the paper feeding conveying device, the preheating device is arranged on the guide frame, the preheating device comprises a guide roller, the guide roller is provided with a heat conduction roller body, and a heating pipe is arranged in the guide roller. The utility model has the following beneficial effects: before the printing, paper feed conveyor drives the paper and removes to printing mechanism, and preheating device on the guide frame laminates on the paper, and the heat conduction roll body surface and the paper contact of guide roller to the heat conduction roll body rolls along with the paper through frictional force, so that the heat evenly conducts on the paper, heats the paper before the printing, in order to reduce the difference in temperature of paper around the printing, avoids paper bending deformation.

Description

Paper preheating device of printing machine

Technical Field

The present invention relates to a printing press apparatus, and more particularly, to a sheet preheating device of a printing press.

Background

In printing, the existing printing machine needs to heat the paper after printing and inking, and evaporate water to fix the pattern. Because the continuous development of printing machine, speed is constantly accelerated, leads to the heating time to constantly shorten, in order to ensure that the ink is painted, heat output increases in the unit interval, and the temperature of heating improves, and the paper is aggravated at the difference in temperature around the printing, and the easy bending deformation of paper.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a paper preheating device of a printing machine, which is used for heating paper before printing so as to reduce the temperature difference of the paper before and after printing and avoid the bending deformation of the paper.

In order to achieve the purpose, the utility model provides the following technical scheme: a paper preheating device of a printing machine comprises a machine frame, wherein a paper feeding conveying device and a guide frame are mounted on the machine frame, the guide frame is mounted above the paper feeding conveying device, a preheating device is mounted on the guide frame, the preheating device comprises a guide roller, the guide roller is provided with a heat conduction roller body, and a heating pipe is arranged in the guide roller body.

The utility model is further configured to: the preheating device further comprises two mounting seats, the two mounting seats are fixedly connected to the guide frame, and two ends of the guide roller are respectively and rotatably connected to the corresponding mounting seats.

The utility model is further configured to: the mounting seat is provided with a fixing hole, and the heating pipe passes through the fixing hole and is connected with a fastener.

The utility model is further configured to: the two ends of the guide roller are provided with connecting sleeves, the mounting seat is also provided with a bearing hole, a rolling bearing is arranged in the bearing hole, and the rolling bearing is sleeved on the connecting sleeves.

The utility model is further configured to: the preheating devices are multiple in number and are arranged at equal intervals along the length direction of the guide frame.

The utility model is further configured to: the frame is connected with a plurality of connecting rods in a rotating manner, and one ends of the connecting rods are connected to the guide frame in a rotating manner.

The utility model is further configured to: the paper feeding and conveying device comprises a conveying belt, and the guide frame is parallel to the top surface of the conveying belt.

The utility model is further configured to: the paper feeding and conveying device further comprises a driving roller and a driven roller, the driving roller and the driven roller are both connected to the rack in a rotating mode, the conveying belt is sleeved on the driving roller and the driven roller, and the rack is provided with a driving motor which is used for driving the driving roller to rotate.

The utility model is further configured to: the frame is also provided with a heating plate, the heating surface of the heating plate is abutted against the inner belt surface of the conveying belt, and the front end and the rear end of the heating plate are both provided with guide cambered surfaces.

In conclusion, the utility model has the following beneficial effects: before the printing, paper feed conveyor drives the paper and removes to printing mechanism, and preheating device on the guide frame laminates on the paper, and the heat conduction roll body surface and the paper contact of guide roller to the heat conduction roll body rolls along with the paper through frictional force, so that the heat evenly conducts on the paper, heats the paper before the printing, in order to reduce the difference in temperature of paper around the printing, avoids paper bending deformation.

Drawings

FIG. 1 is a schematic view showing a connection structure of a sheet preheating device of a printing press;

fig. 2 is a schematic view of a connection structure of the preheating device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-2, a paper preheating device for a printing machine includes a frame 1, a paper feeding and conveying device 2 and a guiding frame 3 are mounted on the frame 1, the guiding frame 3 is mounted above the paper feeding and conveying device 2, a preheating device 4 is mounted on the guiding frame 3, the preheating device 4 includes a guiding roller 41, the guiding roller 41 is provided with a heat conducting roller 411, and a heating pipe 42 is disposed inside the guiding roller.

Through the scheme, before the printing, paper feed conveyor 2 drives the paper to move to printing mechanism, preheating device 4 on the guide frame 3 is laminated on the paper, the surface of heat conduction roller body 411 of guide roller 41 contacts with the paper, and heat conduction roller body 411 rolls along with the paper through frictional force, so that the heat is uniformly conducted to the paper, the paper before the printing is heated, the temperature difference of the paper before and after the printing is reduced, and the paper is prevented from being bent and deformed.

As a modified specific embodiment, the preheating device 4 further includes two mounting seats 43, both the two mounting seats 43 are fixedly connected to the guide frame 3, and both ends of the guide roller 41 are respectively rotatably connected to the corresponding mounting seats 43.

Through the scheme, the guide roller 41 is rotatably connected to the guide frame 3 through the mounting seat 43, so that the installation, the disassembly and the maintenance are convenient, and the guide roller 41 can conveniently extend downwards to be in contact with paper.

As a modified embodiment, the mounting seat 43 is provided with a fixing hole 431, and the heating pipe 42 passes through the fixing hole 431 and is connected with a fastener.

Through the above scheme, the heating pipe 42 is fixed by the fixing hole 431, and the heating pipe 42 heats the heat conduction roller body 411 through air or other media, so that the heating pipe 42 is ensured to be firmly connected, the electric connection is stable, and poor contact is not easy to occur.

As a modified specific embodiment, the two ends of the guide roller 41 are provided with connecting sleeves 412, the mounting seat 43 is further provided with a bearing hole 432, a rolling bearing 433 is arranged in the bearing hole 432, and the rolling bearing 433 is sleeved on the connecting sleeves 412.

Through above-mentioned scheme, antifriction bearing 433 reduces frictional force, increase of service life.

As a modified specific embodiment, the preheating devices 4 are plural in number and are disposed at equal intervals along the length direction of the guide frame 3.

Through above-mentioned scheme, a plurality of preheating device 4 preheat in proper order, progressively improve heating temperature, avoid the difference in temperature too big.

As a modified specific embodiment, a plurality of connecting rods 11 are rotatably connected to the frame 1, and one ends of the plurality of connecting rods 11 are rotatably connected to the guide frame 3.

Through the scheme, the guide frame 3 can be kept horizontal and moves in an arc line by the connecting rods 11.

As a modified embodiment, the paper feeding and conveying device 2 includes a conveying belt 21, and the guide frame 3 is parallel to the top surface of the conveying belt 21.

With the above-described arrangement, the guide frame 3 smoothly brings the preheating device 4 into abutment on the top surface of the conveying belt 21 to contact the sheet.

As an improved specific embodiment, the paper feeding and conveying device 2 further includes a driving roller 22 and a driven roller 23, the driving roller 22 and the driven roller 23 are both rotatably connected to the frame 1, the conveying belt 21 is sleeved on the driving roller 22 and the driven roller 23, the frame 1 is provided with a driving motor 13, and the driving motor 13 is used for driving the driving roller 22 to rotate.

Through the scheme, the driving motor 13 drives the driving roller 22 to rotate, so that the conveying belt 21 is driven to rotate, the speed can be adjusted, the speed is changed, and the preheating effect of each paper is ensured to be consistent.

As a modified specific embodiment, the frame 1 is further provided with a heating plate 12, a heating surface of the heating plate 12 abuts against an inner belt surface of the conveyor belt 21, and the front end and the rear end of the heating plate are provided with guide arc surfaces 121.

Through above-mentioned scheme, heating plate 12 heating conveyer belt 21, and then through conveyer belt 21 heating paper, the two-sided heating, it is more even to preheat the effect.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a paper preheating device of printing machine, includes frame (1), characterized by: the paper feeding and conveying device is characterized in that a paper feeding and conveying device (2) and a guide frame (3) are installed on the rack (1), the guide frame (3) is installed above the paper feeding and conveying device (2), a preheating device (4) is installed on the guide frame (3), the preheating device (4) comprises a guide roller (41), the guide roller (41) is provided with a heat conduction roller body (411), and a heating pipe (42) is arranged in the guide roller (41).

2. The sheet preheating device of a printing press according to claim 1, wherein: the preheating device (4) further comprises two mounting seats (43), the two mounting seats (43) are fixedly connected to the guide frame (3), and two ends of the guide roller (41) are respectively rotatably connected to the corresponding mounting seats (43).

3. The sheet preheating device of a printing press according to claim 2, wherein: the mounting seat (43) is provided with a fixing hole (431), and the heating pipe (42) penetrates through the fixing hole (431) and is connected with a fastener.

4. The sheet preheating device of a printing press according to claim 3, wherein: the two ends of the guide roller (41) are provided with connecting sleeves (412), the mounting base (43) is further provided with a bearing hole (432), a rolling bearing (433) is arranged in the bearing hole (432), and the rolling bearing (433) is sleeved on the connecting sleeves (412).

5. The sheet preheating device of a printing press according to claim 4, wherein: the preheating devices (4) are multiple in number and are arranged at equal intervals along the length direction of the guide frame (3).

6. The sheet preheating device of a printing press according to any one of claims 1 to 5, wherein: the frame (1) is connected with a plurality of connecting rods (11) in a rotating mode, and one ends of the connecting rods (11) are connected to the guide frame (3) in a rotating mode.

7. The sheet preheating device of a printing press according to claim 6, wherein: the paper feeding and conveying device (2) comprises a conveying belt (21), and the guide frame (3) is parallel to the top surface of the conveying belt (21).

8. The sheet preheating device of a printing press according to claim 7, wherein: paper feed conveyor (2) are still including drive roll (22) and driven voller (23), drive roll (22) and driven voller (23) are all rotated and are connected in frame (1), conveyer belt (21) cover is established on drive roll (22) and driven voller (23), install driving motor (13) on frame (1), driving motor (13) are used for driving drive roll (22) and rotate.

9. The sheet preheating device of a printing press according to claim 8, wherein: the heating plate (12) is further installed on the rack (1), the heating surface of the heating plate (12) is abutted to the inner belt surface of the conveying belt (21), and the front end and the rear end of the heating plate are provided with guide arc surfaces (121).