CN111453483A

CN111453483A - Paper feeding mechanism of printing machine

Info

Publication number: CN111453483A
Application number: CN202010315112.1A
Authority: CN
Inventors: 钱克模
Original assignee: Hubei Xiefeng Printing Co ltd
Current assignee: Hubei Xiefeng Printing Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-07-28

Abstract

The invention discloses a paper feeding mechanism of a printing machine, which comprises a rack and a conveying roller, wherein the conveying roller is arranged at the front end of the rack, a conveying belt is fixedly arranged above the rack, an adjusting roller and a positioning roller are arranged above the conveying belt, the adjusting roller and the positioning roller are pivotally arranged on the rack, the adjusting roller is a slip shaft, a sleeve is arranged on the outer periphery of the slip shaft, the outer periphery of the slip shaft is adjustably abutted against the inner periphery of the sleeve, the outer peripheral surface of the sleeve is abutted against the lower surface of paper, a positioning roller is arranged below one side of the adjusting roller, which is far away from the conveying roller, and the outer peripheral surface of the positioning roller is abutted against the. Set up regulating roller and registration roller between conveyer belt and printing device, adjust the rate of tension between conveying roller and the conveyer belt through regulating roller and registration roller to the roughness (smoothness degree) of adjustment paper avoids the paper to produce the overlapping at the printing in-process, causes the quality flaw of printed matter.

Description

Paper feeding mechanism of printing machine

Technical Field

The invention belongs to the technical field of printing machines, and particularly relates to a paper feeding mechanism of a printing machine.

Background

Machine for brushing text and images. Modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

The size of the common printed matter in the existing printing machine is set according to the requirement of a client, different clients have different requirements, therefore, the width of the printed matter is changed (generally required to be cut), especially when a large number of printed matters are required or a large advertising board is printed, a single piece of paper wastes materials, and therefore, the roll paper is generally adopted, so that the waste of materials can be reduced.

However, when roll paper is used, the paper is affected by its thickness variation, moisture, and a slight width is generated during roll delivery. The paper feeding mechanism of the existing printing machine generally comprises a conveying roller for fixing a roll of paper and driving the roll to rotate so as to convey the roll of paper to a printing device and a conveying belt for receiving the paper, but the paper feeding mechanism cannot adjust the tension of the paper between the roll and the printing mechanism according to the change (or crease) of the paper web, so that the paper of the roll can generate slight flaws in printing, and the printed products are unqualified.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a paper feeding mechanism of a printing machine, which has the advantage that the tension between a conveying roller and a printing device can be adjusted according to the width of paper during the conveying process, so that the quality of printed products is improved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a last paper mechanism of printing machine, includes frame and conveying roller, the front end of frame is equipped with the conveying roller, and the conveying roller is used for the solid fixed reel and drives the paper towards the printing device direction motion, the top installation of frame is fixed with the conveyer belt, and the conveyer belt is used for accepting the paper of being transported by the conveying roller end, and the conveyer belt transports the paper to printing device by the conveying roller.

The top of conveyer belt is equipped with dancer roll and registration roller, and dancer roll and registration roller pivot are installed in the frame, the dancer roll is the slippage axle, and the periphery of slippage axle is equipped with the sleeve, and the adjustable counterbalance of adjustable with telescopic inner periphery of slippage axle periphery, telescopic outer peripheral face and the lower surface of paper offset, one side below that the conveying roller was kept away from to the dancer roll is equipped with the registration roller, and the registration roller outer peripheral face offsets with the upper surface of paper, and dancer roll and registration roller are arranged in the roughness of adjustment paper in transit and adjust the rate of tension of paper between conveying roller and conveyer belt.

Preferably, the machine frame is provided with first pivoting seats at positions corresponding to two ends of the conveying roller, the two ends of the conveying roller are pivotally arranged on the first pivoting seats, a first driving device is arranged on the machine frame at a corresponding position, and a transmission end of the first driving device is connected with one end of the conveying roller.

Preferably, the frame is provided with a second pivot seat and a third pivot seat corresponding to the two ends of the adjusting roller and the positioning roller, the two ends of the adjusting roller are pivotally mounted on the second pivot seat, the frame is provided with a second driving device corresponding to the position, and the transmission end of the second driving device is connected with one end of the adjusting roller; but positioning roller both ends pivot is installed in third pin joint seat, and the third drive arrangement is installed to the corresponding position frame, the transmission end of third drive arrangement is connected with the one end of positioning roller.

Preferably, the conveyor belt comprises a driving roller, a driven roller and a fourth driving device, wherein the driving roller, the driven roller and the fourth driving device are pivotally arranged at two ends of the frame.

Preferably, the first drive device, the second drive device, the third drive device and the fourth drive device are all rotary servo motors.

In summary, the invention has the following advantages:

1. an adjusting roller and a positioning roller are arranged between the conveying belt and the printing device, and the tightness between the conveying roller and the conveying belt is adjusted through the adjusting roller and the positioning roller so as to adjust the flatness of paper and avoid the quality defects of printed matters caused by the overlapping of the paper in the printing process;

2. simultaneously can adapt to the stock form of equidimension not through regulating roller and registration roller, make the printing machine can print the printed matter of equidimension not, improve the application range of printing machine.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

description of reference numerals: 100. rolling paper; 1. a frame 2, a conveying roller; 201. a first driving device; 3. a conveyor belt; 301. a drive roll; 302. a driven roller; 303. a fourth drive device; 4. a regulating roller; 401. a second driving device; 5. a positioning roller 501 and a third driving device; 6. a sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an embodiment of the present invention is shown: the utility model provides a last paper mechanism of printing machine, the front end of frame 1 is equipped with conveying roller 2, conveying roller 2 is used for the solid fixed reel and drives the paper towards the printing device direction motion, the top installation of frame 1 is fixed with conveyer belt 3, conveyer belt 3 is used for accepting the paper by conveying roller 2 transportation, conveyer belt 3 transports the paper to the printing device by conveying roller 2, the top of conveyer belt 3 is equipped with regulating roller 4 and registration roller 5, regulating roller 4 and 5 pivotal mounting of registration roller are in frame 1, regulating roller 4 and 5 be used for adjusting the roughness of paper and the rate of tension of adjustment paper between conveying roller and conveyer belt in the transportation.

In the embodiment of the present invention, as shown in fig. 2, the adjustment roller 4 is sleeved with the sleeve 6, the sleeve 6 is adjustably contacted with the adjustment roller 4, the upper circumferential surface of the sleeve 6 is abutted against the lower surface of the paper, and the error generated during the paper delivery process by the roll paper 100 is adjusted by the adjustable contact of the adjustment roller 4 and the sleeve 6.

The adjusting roller 4 is a slip shaft, the outer periphery of the slip shaft is adjustably abutted against the inner periphery of the sleeve, for example, a slip shaft of CN 109132720A is adopted, which is mainly used for the winding process of the roll paper 100, in the invention, the tension of the roll paper 100 is adjusted only by adopting the change of the distance between the upper peripheral surface of the slip shaft and the sleeve, namely, the roll paper 100 is adjusted by a slip ring, and of course, the same technical effect can be realized by adopting other existing slip shafts.

Adjusting roller 4 and registration roller 5 are installed in 3 tops of conveyer belt, and adjusting roller 4 level is higher than the height of conveying roller 2 and registration roller 5, breadth adjusting device includes adjusting roller 4 and registration roller 5, adjusting roller 4 is pivoted and is installed in frame 1, the up end of adjusting roller 4 contacts with the paper, adjusting roller 4 is used for adjusting the roughness of paper, setting roller 5 and adjusting roller interval, positioning roller 5 is used for the paper location and the adjustment paper rate of tension of 4 transport of adjusting roller, 5 lower terminal surfaces of positioning roller cooperate with the transport with the paper from between the two. The adjustment roller 4 and the registration roller 5 cooperate to adjust the tension of the roll paper 100, and unevenness due to difference in the fit of the roll paper 100 when wound on the roll 6 can be adjusted, and the tightness and smoothness of the roll paper 100 can be adjusted.

In the embodiment of the present invention, the conveying belt 3 includes a driving roller 301 and a driven roller 302 pivotally mounted at two ends of the frame 1, a belt disposed between the driving roller 301 and the driven roller 302, and a fourth driving device 303 for driving, wherein the belt 33 is attached to the paper, and the paper is driven by the fourth driving device 303 to move toward the printing device.

In the embodiment of the invention, the frame 1 is provided with a first pivoting seat corresponding to the two ends of the conveying roller 2, the two ends of the conveying roller 2 are pivotally mounted on the first pivoting seat, the frame 1 is provided with a first driving device 201 corresponding to the position, the driving end of the first driving device 201 is connected with one end of the conveying roller 2, the frame 1 is provided with a second pivoting seat and a third pivoting seat corresponding to the two ends of the adjusting roller 4 and the positioning roller 5, the two ends of the adjusting roller 4 are pivotally mounted on the second pivoting seat, the frame corresponding to the position is provided with a second driving device 401, and the driving end of the second driving device 401 is connected with one end of the adjusting roller 4; two ends of the positioning roller 5 can be pivotally installed on the third pivot seat, a third driving device 501 is installed on the machine frame at the corresponding position, and the transmission end of the third driving device 501 is connected with one end of the positioning roller 5.

The first driving device 201, the second driving device 401, the third driving device 501 and the fourth driving device 303 are respectively rotary servo motors, the first driving device, the second driving device, the third driving device and the fourth driving device can also adopt the prior art, the servo motors can accurately control the rotating speed, the printing precision of the printing machine can be improved to the greatest extent, and the quality of printed matters is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a last paper mechanism of printing machine, includes frame (1) and conveying roller (2), its characterized in that: the front end of frame (1) is equipped with conveying roller (2), the top installation of frame (1) is fixed with conveyer belt (3), and the top of conveyer belt (3) is equipped with adjusting roller (4) and registration roller (5), and adjusting roller (4) and registration roller (5) pivot are installed on frame (1), adjusting roller (4) are the slippage axle, and the periphery of slippage axle is equipped with sleeve (6), and the adjustable counterbalance of inner periphery of slippage axle periphery and sleeve (6), and the outer peripheral face of sleeve (6) offsets with the lower surface of paper, one side below that conveying roller (2) were kept away from in adjusting roller (4) is equipped with registration roller (5), and registration roller (5) outer peripheral face offsets with the upper surface of paper.

2. A feeding mechanism of a printing press according to claim 1, wherein: frame (1) corresponds the position at conveying roller (2) both ends and installs first pin joint seat, but conveying roller (2) both ends pivot install in first pin joint seat, corresponds and installs first drive arrangement (201) on position frame (1), the transmission end of first drive arrangement (201) is connected with conveying roller (2) one end.

3. A feeding mechanism of a printing press according to claim 1, wherein: a second pivoting seat and a third pivoting seat are mounted at positions, corresponding to the two ends of the adjusting roller (4) and the positioning roller (5), of the rack (1), the two ends of the adjusting roller (4) can be pivotally mounted on the second pivoting seat, a second driving device (401) is mounted at the position, corresponding to the rack, of the rack, and a transmission end of the second driving device (401) is connected with one end of the adjusting roller (4); but positioning roller (5) both ends pivot mount in third pin joint seat, and corresponding position rack-mount has third drive arrangement (501), the transmission end of third drive arrangement (501) is connected with the one end of positioning roller (5).

4. A feeding mechanism of a printing press according to claim 1, wherein: the conveying belt (3) comprises a driving roller (301), a driven roller (302) and a fourth driving device (303), wherein the driving roller (301) and the driven roller are mounted at two ends of the frame (1) in a pivoting mode, and the fourth driving device is used for driving the driving roller and the driven roller.

5. A feeding mechanism of a printing press according to claim 1, wherein: the first driving device (201), the second driving device (401), the third driving device (501) and the fourth driving device (303) are all rotary servo motors.