CN112319015A

CN112319015A - High-speed smearing-preventing single-color double-sided offset press

Info

Publication number: CN112319015A
Application number: CN201910715073.1A
Authority: CN
Inventors: 刘长华
Original assignee: Rugao Changchen Printing Machinery Co ltd
Current assignee: Rugao Changchen Printing Machinery Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2021-02-05

Abstract

The invention relates to a high-speed anti-smearing single-color double-sided offset press which consists of a paper feeder, a regular paper transfer component, a paper flattening mechanism, a reverse side frame, a forward transfer roller I, a forward transfer roller II, a reverse side impression roller, a reverse side blanket cylinder, a reverse side forme cylinder, a reverse side ink path system, a middle transfer roller I, a middle transfer roller II, a front side frame, a front side ink path system, a front side forme cylinder, a front side blanket cylinder, a front side impression roller, a paper collecting guide rail, a paper collecting frame, a paper collecting fan and a paper collecting table; because the paper feeder adopting the antistatic device, the regular paper transfer part adapting to high-speed paper handover, the roller of the tapered roller bearing and the paper pressing fan with the stepless adjustable rotating speed of 3X4 are adopted, the anti-smearing paper supporting plate with the reduced contact area is provided, and the paper flattening mechanism and the non-stop paper feeding mechanism are added, thereby ensuring that the running speed of the machine can reach 15000 r/h.

Description

High-speed smearing-preventing single-color double-sided offset press

Technical Field

The invention relates to an offset press in the printing industry, in particular to a high-speed anti-smearing single-color double-sided offset press.

Background

Through searching related patent documents, a high-speed anti-smearing monochrome double-sided offset press with the same structure as the invention is not searched at present. The existing domestic folio single-color double-sided offset press generally adopts a soft pressing and softening mode or a hard pressing and softening mode to print, when the soft pressing and softening mode is adopted for printing, because two blanket cylinders deform greatly during pressing, screen points are easy to deform, enlarge and lose during printing, and the quality of a printed product is seriously influenced; when the hard-pressing soft mode is adopted for printing, although the quality of the screen dots is obviously improved, the phenomena of waste paper, irregular paper collection and the like are easy to occur in the printing process, and the defects of low machine running speed, insufficient stability and the like exist. Therefore, there is a need for a high-speed anti-smearing single-color double-sided offset press which improves the existing offset press, improves the quality of printed products, and enables the printing speed to reach 15000 sheets/hour so as to meet the market demand.

Disclosure of Invention

The invention aims to provide a high-speed printing paper, which meets the high-quality printing requirement and has a compact structure.

The invention is technically characterized in that: the paper feeding machine is designed to be composed of a paper feeding machine, a paper flattening mechanism, a regular paper conveying component, a reverse side frame, a front conveying roller I, a front conveying roller II, a reverse side impression roller, a reverse side blanket roller, a reverse side forme roller, a reverse side ink path system, a middle conveying roller I, a middle conveying roller II, a front side frame, a front side ink path system, a front side forme roller, a front side blanket roller, a front side impression roller, a paper collecting guide rail, a paper collecting frame, a paper collecting fan and a paper collecting table on the basis of considering compact structure, work efficiency providing and convenient use, and the paper feeding machine of the anti-static device is connected with the reverse side frame through the paper feeding table; the paper flattening mechanism is arranged on the reverse side frame; the gauge paper-transferring component is arranged on the reverse side frame; the forward-conveying roller I and the forward-conveying roller II are respectively arranged on the reverse side rack; the reverse impression cylinder, the reverse blanket cylinder, the reverse printing plate cylinder and the reverse ink and wash path system are respectively arranged on the reverse rack; the middle transfer cylinder I, the middle transfer cylinder II, the front printing plate cylinder, the front blanket cylinder, the front impression cylinder and the front ink and wash circuit system are respectively arranged on the front frame; the paper delivery machine frame is connected with the front machine frame; the delivery roller and the delivery guide rail are respectively arranged on the delivery rack; the forward-conveying cylinder I, the forward-conveying cylinder II, the reverse-side impression cylinder, the reverse-side blanket cylinder, the reverse-side printing plate cylinder, the middle-conveying cylinder I, the middle-conveying cylinder II, the front-side printing plate cylinder, the front-side blanket cylinder and the front-side impression cylinder all adopt tapered roller bearing structures; the delivery roller is a structure body which can be axially adjusted and prevent smearing; the paper delivery guide rail adopts a totally-enclosed guide rail structure; the paper collecting fan is a 3X4 stepless adjustable rotating speed fan.

The center distance between the back impression cylinder and the back rubber cylinder is 300-300.5 mm; the center distance between the front rubber roller and the front impression roller is 300-300.6 mm;

the paper feeder is provided with an electrostatic elimination device and a non-stop paper feeding mechanism;

the paper flattening mechanism consists of a shaft sleeve, a shaft, a pressure plate connecting seat, a pressure plate, a connecting rod, a pressure adjusting mechanism I, a pressure adjusting mechanism II, a rolling ball and a cam; the shaft is respectively provided with a shaft sleeve, the pressing plate connecting seat, a pressing plate, a connecting rod and a pressure adjusting mechanism I; the pressure adjusting mechanism II and the rolling ball are respectively arranged on the pressure adjusting mechanism I; the cam is arranged on the reverse side frame; the pressing plate connecting seats are at least provided with eight groups, and the pressing plates are connected with the shaft through fasteners; the pressure adjusting mechanism I is an adjusting mechanism for adjusting the pressure between the pressing plate and the paper; the pressure adjusting mechanism II is an adjusting mechanism for adjusting the pressure between the rolling ball and the cam;

the paper collecting roller is provided with an anti-smearing paper tray which can be axially adjusted, and the circumferential end face of the anti-smearing paper tray is of a tooth-shaped structure.

The paper collecting table consists of a chain, a paper collecting table plate, a worm wheel, a worm, a gear mechanism and a three-phase asynchronous motor component; at least four chains are used for hanging the paper collecting bedplate; the worm wheel and the worm are respectively arranged on the paper collecting rack through a shaft bracket; the three-phase asynchronous motor assembly is arranged on the paper collecting rack and is meshed with the gear mechanism.

When the printing machine is used, printing paper is transferred to the reverse side printing part from the paper conveying part through the forward transfer part to be printed on the reverse side, then the paper is transferred to the front side printing part through the transfer part to be printed on the front side, and the printed paper is collected orderly through the paper collecting part.

The invention has the advantages that: because the paper feeder adopting the antistatic device, the regular paper transfer component adapting to high-speed paper handover, the roller of the tapered roller bearing and the paper pressing fan with the stepless adjustable rotating speed of 3X4 are adopted, the anti-smearing paper supporting plate with the reduced contact area is provided, and the paper flattening mechanism and the non-stop paper feeding mechanism are added, thereby ensuring that the running speed of the machine can reach 15000 r/h; the paper feeding machine is provided with the non-stop paper feeding structure, so that the paper feeding auxiliary time is reduced, and the efficiency is improved; the paper feeder is provided with the anti-static device, so that paper is stably conveyed, and the paper conveying speed is ensured; because the paper conveying cylinder, the printing plate cylinder, the blanket cylinder and the impression cylinder all adopt tapered roller bearing structures, on one hand, the universality of parts is improved, on the other hand, the running stability of the machine is ensured, and the printing speed of the machine is ensured; due to the arrangement of the paper flattening mechanism, the paper is guaranteed to be flat when entering the regular paper conveying part, the probability of paper lotus leaf edges is reduced, and the stability of paper handover is guaranteed; the control range of the center distance between the impression cylinder on the front side and the back side and the blanket cylinder on the back side is 300-300.6 mm, so that the printing pressure adjusting range of the machine is enlarged, the machine is suitable for paper with more thickness, and the application range is enlarged; because the delivery cylinder is provided with the paper supporting wheel which is toothed at the periphery and can be axially adjusted, the contact area between the paper supporting wheel and paper is reduced, the printed image-text part is effectively avoided, and the printed product is prevented from being scratched and smeared; because the paper collecting guide rail adopts a totally-enclosed guide rail structure, the flying of the paper collecting discharge is prevented, the safety is improved, the transition is smooth, and the vibration and the noise of the chain during high-speed operation are reduced; the delivery fan adopts a 3X4 stepless adjustable rotating speed fan, so that the low-speed linearity is good, and the delivery fan can adapt to printing delivery of paper with multiple specifications; the structure layout is reasonable, the operation is convenient, and therefore, the device has great practical and popularization values.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a high-speed anti-smearing monochrome double-sided offset printing machine according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 taken in the direction A;

FIG. 3 is a schematic view of the structure of FIG. 1 in the direction B;

FIG. 4 is a schematic structural view of a delivery table of the present invention;

Detailed Description

Referring to the attached

drawings

1, 2, 3 and 4, the high-speed anti-smearing single-color double-sided offset press comprises a paper feeder 1, a gauge paper transfer part 2, a paper flattening mechanism 3, a reverse side frame 4, a front transfer roller I5, a front transfer roller II 6, a reverse side impression roller 7, a reverse side blanket cylinder 8, a reverse side printing plate cylinder 9, a reverse side ink path system 10, a middle transfer roller I11, a middle transfer roller II 12, a front side frame 13, a front side ink path system 14, a front side printing plate cylinder 15, a front side blanket cylinder 16, a front side impression cylinder 17, a paper collecting cylinder 18, a paper collecting guide rail 19, a paper collecting frame 20 and a paper collecting fan 21 and a paper collecting table 22, and is characterized in that: the paper feeder 1 of the antistatic device is connected with the reverse side frame 4 through a paper feeding table; the paper flattening mechanism 3 is arranged on the reverse side frame 4; the regular paper transfer component 2 is arranged on the reverse side frame 4; the forward-conveying roller I5 and the forward-conveying roller II 6 are respectively arranged on the reverse side frame 4; the reverse impression cylinder 7, the reverse blanket cylinder 8, the reverse printing plate cylinder 9 and the reverse ink and wash path system 10 are respectively arranged on the reverse frame 4; the middle conveying cylinder I11, the middle conveying cylinder II 12, the front printing plate cylinder 15, the front blanket cylinder 16, the front impression cylinder 17 and the front ink path system 14 are respectively arranged on the front frame 13; the delivery frame 20 is connected with the front frame 13; the delivery roller 18 and the delivery guide rail 19 are respectively arranged on the delivery frame 20; the forward-conveying cylinder I5, the forward-conveying cylinder II 6, the reverse impression cylinder 7, the reverse blanket cylinder 8, the reverse printing plate cylinder 9, the middle-conveying cylinder I11, the middle-conveying cylinder II 12, the front printing plate cylinder 15, the front blanket cylinder 16 and the front impression cylinder 17 all adopt a tapered roller bearing structure; the delivery cylinder 18 is a structure body which can be adjusted in the axial direction and prevent smearing; the paper delivery guide rail 19 adopts a totally-enclosed guide rail structure; the paper collecting fan 21 is a 3X4 stepless adjustable rotating speed fan; the center distance between the back impression cylinder 7 and the back rubber cylinder 8 is 300 mm-300.5 mm; the center distance between the front rubber roller 16 and the front impression roller 17 is 300 mm-300.6 mm; the paper feeder 1 is provided with an electrostatic elimination device 101 and a non-stop paper feeding mechanism 102; the paper flattening mechanism 3 consists of a shaft sleeve 301, a shaft 302, a pressure plate connecting seat 303, a pressure plate 304, a connecting rod 305, a pressure adjusting mechanism I306, a pressure adjusting mechanism II 307, a rolling ball 308 and a cam 309; the shaft 302 is respectively provided with a shaft sleeve 301, a pressure plate connecting seat 303, a pressure plate 304, a connecting rod 305 and a pressure adjusting mechanism I306; the pressure adjusting mechanism II 307 and the rolling ball 308 are respectively arranged on the pressure adjusting mechanism I306; the cam 309 is arranged on the reverse side frame 4; the pressing plate connecting seat 303 is at least provided with eight groups, and the pressing plate 304 is connected with the shaft 302 through a fastener; the pressure adjusting mechanism I306 is an adjusting mechanism for adjusting the pressure between the pressing plate and the paper; the pressure adjusting mechanism II 307 is an adjusting mechanism for adjusting the pressure between the rolling ball and the cam; the paper delivery roller 17 is provided with an anti-smearing paper tray 1701 which can be axially adjusted, and the circumferential end surface of the anti-smearing paper tray 1701 is of a tooth-shaped structure; the delivery table 21 consists of a chain 211, a delivery platen 212, a worm gear 213, a worm 214, a gear mechanism 215 and a three-phase asynchronous motor component 216; at least four chains 211 are used for hanging the paper collecting bedplate 212; the worm wheel 213 and the worm 214 are respectively arranged on the paper collecting rack 20 through a shaft bracket; the three-phase asynchronous motor assembly 216 is arranged on the delivery frame 20 and is meshed with the gear mechanism 215.

Claims

1. The utility model provides a high-speed single-colored two-sided offset press of preventing set-off, it is by paper feed machine (1), rule transfer unit (2), paper flattening mechanism (3), reverse side frame (4), preceding cylinder I (5), preceding cylinder II (6), reverse side impression cylinder (7), reverse side blanket cylinder (8), reverse side forme cylinder (9), reverse side ink and wash way system (10), well cylinder I (11), well cylinder II (12), positive frame (13), positive ink and wash way system (14), positive forme cylinder (15), positive blanket cylinder (16), positive impression cylinder (17), collection cylinder (18), collection guide rail (19), collection frame (20), collection fan (21), collection platform (22) constitute, its characterized in that: the paper feeder (1) is connected with the reverse side frame (4) through a paper feeding table; the paper flattening mechanism (3) is arranged on the reverse side rack (4); the gauge paper-transferring component (2) is arranged on the reverse side frame (4); the forward-conveying roller I (5) and the forward-conveying roller II (6) are respectively arranged on the reverse side rack (4); the reverse impression cylinder (7), the reverse blanket cylinder (8), the reverse printing plate cylinder (9) and the reverse ink and wash circuit system (10) are respectively arranged on the reverse rack (4); the middle conveying cylinder I (11), the middle conveying cylinder II (12), the front printing plate cylinder (15), the front blanket cylinder (16), the front impression cylinder (17) and the front ink path system (14) are respectively arranged on the front rack (13); the delivery frame (20) is connected with the front frame (13); the delivery roller (18) and the delivery guide rail (19) are respectively arranged on the delivery rack (20); the forward-conveying cylinder I (5), the forward-conveying cylinder II (6), the reverse impression cylinder (7), the reverse blanket cylinder (8), the reverse printing plate cylinder (9), the middle-conveying cylinder I (11), the middle-conveying cylinder II (12), the front printing plate cylinder (15), the front blanket cylinder (16) and the front impression cylinder (17) all adopt tapered roller bearing structures; the delivery roller (18) is a structure body which can be axially adjusted and prevent smearing; the paper delivery guide rail (19) adopts a totally-enclosed guide rail structure; the paper collecting fan (21) is a 3X4 stepless adjustable rotating speed fan.

2. The high-speed set-off prevention monochrome double-sided offset printing machine according to claim 1, characterized in that: the center distance between the reverse impression cylinder (7) and the reverse rubber cylinder (8) is 300-300.5 mm; the center distance between the front rubber roller (16) and the front impression roller (17) is 300-300.6 mm.

3. The high-speed set-off prevention monochrome double-sided offset printing machine according to claim 1, characterized in that: the paper feeder (1) is provided with a static electricity eliminating device (101) and a non-stop paper feeding mechanism (102).

4. The high-speed set-off prevention monochrome double-sided offset printing machine according to claim 1, characterized in that: the paper flattening mechanism (3) consists of a shaft sleeve (301), a shaft (302), a pressure plate connecting seat (303), a pressure plate (304), a connecting rod (305), a pressure adjusting mechanism I (306), a pressure adjusting mechanism II (307), a rolling ball (308) and a cam (309); the shaft (302) is respectively provided with a shaft sleeve (301), the pressure plate connecting seat (303), a pressure plate (304), a connecting rod (305) and a pressure adjusting mechanism I (306); the pressure adjusting mechanism II (307) and the rolling ball (308) are respectively arranged on the pressure adjusting mechanism I (306); the cam (309) is arranged on the reverse side frame (4); the pressing plate connecting seats (303) are at least provided with eight groups, and the pressing plates (304) are connected with the shafts (302) through fasteners; the pressure adjusting mechanism I (306) is an adjusting mechanism for adjusting the pressure between the pressure plate and the paper; the pressure adjusting mechanism II (307) is an adjusting mechanism for adjusting the pressure between the rolling ball and the cam.

5. The high-speed set-off prevention monochrome double-sided offset printing machine according to claim 1, characterized in that: the paper collecting roller (17) is provided with an anti-smearing paper tray (1701) which can be axially adjusted, and the circumferential end surface of the anti-smearing paper tray (1701) is of a tooth-shaped structure.

6. The high-speed set-off prevention monochrome double-sided offset printing machine according to claim 1, characterized in that: the paper delivery table (21) consists of a chain (211), a paper delivery table plate (212), a worm wheel (213), a worm (214), a gear mechanism (215) and a three-phase asynchronous motor component (216); at least four chains (211) are used for hanging the paper collecting bedplate (212); the worm wheel (213) and the worm (214) are respectively arranged on the paper collecting rack (20) through a shaft bracket; the three-phase asynchronous motor assembly (216) is arranged on the paper delivery rack (20) and is meshed with the gear mechanism (215).