CN211684015U - Two-color printing rotating device for two-color printing machine - Google Patents
Two-color printing rotating device for two-color printing machine Download PDFInfo
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- CN211684015U CN211684015U CN202020131398.3U CN202020131398U CN211684015U CN 211684015 U CN211684015 U CN 211684015U CN 202020131398 U CN202020131398 U CN 202020131398U CN 211684015 U CN211684015 U CN 211684015U
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Abstract
The utility model discloses a double-color printing rotating device for a double-color printing machine, which comprises a turntable bottom plate, wherein a rotating bottom plate is fixedly arranged on the turntable bottom plate through bolts, a safety disc is fixedly arranged on the lower surface of the turntable bottom plate through bolts, a shaft seat is fixed on the rotating bottom plate through bolts, the rotating bottom plate is arranged above the turntable bottom plate, an eccentric shaft is arranged on the shaft seat, and the end part of the eccentric shaft is provided with a deep groove ball bearing; the utility model has the advantages that: realizing the front double-color printing or the back double-color printing or the one-positive-negative double-color printing; the tension before and after printing is always kept constant, and the situation that the tightness of the paper is different before and after printing is avoided; when the second color set is printed, no air blowing device is arranged, so that the problem of inaccurate color registration is avoided; paper does not need to be threaded at a special high position during paper threading, so that the safety of workers during working is ensured; simple structure and low manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of double-color printing machine, and relates to a double-color printing rotary device for double-color printing machine, which belongs to the field of double-color printing machine.
Background
In the printing process of the general two-color printing machine series products, the paper can be printed in three conditions of front two-color printing or reverse two-color printing or one-front-reverse printing according to the requirements of customers. The conventional two-color printing machine can only realize reverse printing of paper when the paper is not turned over, and if printing of a second group of paper is needed, a group of turning frames must be added to turn over the reverse side of the paper so as to print a second color on the front side of the paper, as shown in fig. 1 and 12. However, this has the following drawbacks: 1. the tension before and after printing can not be ensured to be consistent, so that the rolling tightness can not be ensured during rolling, and the quality of the product can not meet the requirements of customers; 2. when the second set of color register is printed, because the air blowing device is arranged on the upper side of the turnover frame, the air flow is not uniform, so that the rear color register is not accurate (the second set of printing colors are out of position); 3. when 650 width is printed, the roll-over stand needs to be erected above the printing group, the height reaches about 3 meters, and great inconvenience is caused to paper threading and adjustment.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a double-colored printing method of double-colored printing machine realizes positive double-colored printing or reverse double-colored printing or one just anti-double-colored printing.
The technical scheme of the utility model is that:
a double-color printing method of a double-color printing machine comprises a reverse double-color printing method, a front double-color printing method and a front and back double-color printing method, and the specific method comprises the following steps:
when reverse side double-color printing is carried out, paper is fed according to a reverse side double-color printing paper feeding route without rotating a rotating bottom plate of a rotating device, and then reverse side double-color printing can be realized, the paper sequentially passes through a paper feeding mechanism, a first printing mechanism and a second printing mechanism, and the paper feeding mechanism, the first printing mechanism and the second printing mechanism are sequentially arranged; the first printing mechanism comprises a first bottom roller and a first printing plate roller, and the second printing mechanism comprises a second bottom roller and a second printing plate roller; and the first printing plate roller and the second printing plate roller are used for printing a color respectively, so that reverse double-color printing is realized.
The paper is printed between the printing plate roller and the bottom roller, and the printing part is arranged on the plate roller wall plates at two ends of the printing plate roller.
Wherein, first galley roller is equipped with first printing position, first galley roller and first form roller laminate mutually, first galley roller sets up on first version roller wallboard, second galley roller is equipped with second printing position, second galley roller and the laminating of second form roller mutually, second galley roller sets up on second version roller wallboard.
Secondly, during the front double-color printing, fixing bolts on the whole rotating bottom plate are loosened through a rotating device, the whole rotating bottom plate and two printing mechanisms arranged on the rotating bottom plate rotate 180 degrees on a horizontal plane at the same time, then paper is fed through a front double-color printing paper feeding route, the double-color front printing can be realized, and the paper is printed through a paper feeding mechanism, a second printing mechanism (a second bottom roller and a second printing plate roller) and a first printing mechanism (a first bottom roller and a first printing plate roller) in sequence; the paper passes through the paper feeding mechanism, bypasses the first printing mechanism, reaches the second printing mechanism, is printed by the second printing mechanism and then returns to the first printing mechanism for printing, and double-color printing on the front surface can be realized;
and thirdly, during the first-side and first-side double-color printing, paper is fed according to the paper feeding route of the front-side and back-side double-color printing, so that the first-side and first-side double-color printing can be realized, a first rotary roller is arranged at the top of the first printing mechanism, paper passes through the paper feeding mechanism, then is wound to the other side of the first printing mechanism, namely one side far away from the paper feeding mechanism, then returns to the first printing mechanism (a first bottom roller and a first printing plate roller), is printed on the front side through the first printing mechanism, and then is conveyed to the second printing mechanism (a second bottom roller and a second printing plate roller) to be printed on the back side.
A rotating device for the double-color printing method of the double-color printing machine, the double-color printing machine comprises a machine body, the machine body is provided with the rotating device,
the printing mechanism of the printing machine is arranged on the rotating device and comprises a first printing mechanism and a second printing mechanism, the printing mechanism can rotate through the rotation of the rotating device, and the purposes of reverse side double-color printing, front side double-color printing and one-positive and one-negative double-color printing are achieved.
The rotating device comprises a turntable bottom plate, the turntable bottom plate is fixed on a frame of the machine body, a rotating bottom plate is fixedly mounted on the turntable bottom plate through bolts, a safety disc is fixedly mounted below the turntable bottom plate through bolts, a shaft seat is fixed on the rotating bottom plate through bolts, the rotating bottom plate is arranged above the turntable bottom plate, an eccentric shaft is arranged on the shaft seat, a deep groove ball bearing is arranged at the end part of the eccentric shaft, the eccentric shaft rotates eccentrically to drive the center of the deep groove ball bearing mounted at the end part of the eccentric shaft to deviate from the shaft center, the center moves downwards to achieve the effect of separating the rotating bottom plate from the turntable bottom plate, the rotating bottom plate is fixed on the turntable bottom plate through bolts, and when the rotating device needs to rotate, the bolts.
The rotary bottom plate is provided with a printing group wallboard through a bolt and is used for supporting the printing group and a paper guide roller through which paper passes.
The safety disc is provided with the positioning blocks, the lower part of the bottom plate of the rotary disc is provided with two limiting blocks corresponding to the positioning blocks, so that the safety disc can only rotate 180 degrees, and the positioning blocks are in contact with the limiting blocks, so that the effect of limiting the rotating device is achieved.
When the rotary device rotates to 180 degrees, the limiting blocks limit the position of the whole rotary device, and the rotary device rotates 180 degrees on the horizontal plane.
The utility model has the advantages that:
(1) realizing the front double-color printing or the back double-color printing or the one-positive-negative double-color printing;
(2) the tension before and after printing is always kept constant, and the situation that the tightness of the paper is different before and after printing is avoided;
(3) when the second color set is printed, no air blowing device is arranged, so that the problem of inaccurate color registration is avoided;
(4) paper does not need to be threaded at a special high position during paper threading, so that the safety of workers during working is ensured;
(5) simple structure and low manufacturing cost.
The present invention will be further explained with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic structural view of a conventional two-color printing roll-over stand;
FIGS. 2 and 5 are schematic structural views of the reverse bicolor printing of the embodiment of the present invention;
fig. 3 and 6 are schematic structural diagrams of front-side two-color printing according to an embodiment of the present invention;
FIGS. 4 and 7 are schematic structural views of front and back double-sided double-color printing according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a rotating bottom of a rotating device according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a rotating structure of a rotating device according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a positioning structure of a rotating device according to an embodiment of the present invention;
fig. 11 is a schematic diagram of the position of the rotating device in the whole equipment according to the embodiment of the present invention;
FIG. 12 is a schematic view of the overall structure of a conventional two-color printing;
in the figure: 1-turntable bottom plate, 2-rotating bottom plate, 3-printing group wall plate, 4-fixing bolt, 5-eccentric shaft, 6-deep groove ball bearing, 7-safety disc, 8-limiting block, 9-shaft seat and 10-positioning block.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.
Example 1
A double-color printing method of a double-color printing machine comprises a reverse double-color printing method, a front double-color printing method and a front and back double-color printing method.
When reverse side double-color printing is carried out, a rotating bottom plate is not needed, and reverse side double-color printing can be realized only by carrying out paper passing according to a reverse side double-color printing paper passing route shown in figure 2, as shown in figure 2, paper passes through a paper feeding mechanism, a first printing mechanism and a second printing mechanism in sequence, and the paper feeding mechanism, the first printing mechanism and the second printing mechanism are arranged in sequence; the first printing mechanism comprises a first bottom roller 11 and a first printing plate roller 12, and the second printing mechanism comprises a second bottom roller 21 and a second printing plate roller 22; the first printing plate roller 12 and the second printing plate roller 22 respectively print one color, so that reverse double-color printing is realized.
The paper is printed between the printing plate roller and the bottom roller, and the printing part is arranged on the plate roller wall plates at two ends of the printing plate roller.
Wherein, first galley roller 12 is equipped with first printing position 13, first galley roller 12 laminates with first form roller 14 mutually, first galley roller 12 sets up on first version roller wallboard 15, second galley roller 22 is equipped with second printing position 23, second galley roller 22 laminates with second form roller 24 mutually, second galley roller sets up on second version roller wallboard 25.
(II) during the front-side double-color printing, the four fixing bolts on the whole rotating bottom plate are loosened by the rotating device, the rotating handle rod is lifted, the whole rotating bottom plate and the two printing color groups (the printing color groups are the whole printing wall plate, the printing roller, the ink transfer roller, the bottom roller and the assembly group formed by the total assembly of the printing parts) arranged on the rotating bottom plate are arranged on the roller wall plate and originally arranged in the direction of the reverse-side printing bottom plate, the paper can be fed from the paper feeding direction after rotating (the two printing mechanisms are simultaneously arranged on the rotating bottom plate and are simultaneously driven to rotate during rotating) are simultaneously rotated on the horizontal plane by 180 degrees, then the paper is fed according to the front-side double-color printing paper feeding route shown in figure 3, and the double-color front-side printing can be realized, and as shown in figure 3, the paper is sequentially printed by the paper feeding mechanism and the second printing mechanism (the second bottom, A second printing plate roller 22), a first printing mechanism (a first base roller 11, a first printing plate roller 12); the paper passes through the paper feeding mechanism, bypasses the first printing mechanism, reaches the second printing mechanism, is printed by the second printing mechanism and then returns to the first printing mechanism for printing, and double-color printing on the front surface can be realized;
and (iii) during the first-side and second-side double-color printing, the paper is fed according to the paper feeding route for the front-side and second-side double-color printing shown in fig. 4, so as to realize the first-side and second-side double-color printing, as shown in fig. 4, a first rotary roller 16 is arranged at the top of the first printing mechanism, the paper passes through the paper feeding mechanism, then is wound to the other side (the side far away from the paper feeding mechanism) of the first printing mechanism through the first rotary roller, then returns to the first printing mechanism (the first bottom roller 11 and the first printing plate roller 12), prints the front side through the first printing mechanism, and then is conveyed to the second printing mechanism (the second bottom roller 11 and the second printing plate roller 12) to print the back side.
A rotating device for the double-color printing method of the double-color printing machine comprises a machine body, and the machine body is provided with the rotating device.
The rotary device is provided with a printing mechanism of the printing machine, and the printing mechanism can rotate through the rotation of the rotary device, so that the purposes of reverse double-color printing, front double-color printing and one-positive-negative double-color printing are achieved.
The rotating device comprises a turntable bottom plate 1, the turntable bottom plate 1 is fixed (the turntable bottom plate 1 is fixed, the rotating bottom plate 2 can rotate) on a frame of the machine body, the upper surface of the turntable bottom plate 1 is fixedly provided with the rotating bottom plate 2 through bolts, the lower surface of the turntable bottom plate 1 is fixedly provided with a safety disc 7 through bolts, a shaft seat 9 is fixed on the rotating bottom plate 2 through bolts, the rotating bottom plate 2 is arranged above the turntable bottom plate 1, the shaft seat 9 is provided with an eccentric shaft 5, the end part of the eccentric shaft 5 is provided with a deep groove ball bearing 6, the eccentric rotation of the eccentric shaft 5 drives the center of the deep groove ball bearing 6 arranged at the end part of the eccentric shaft 5 to deviate from the shaft center and move downwards to achieve the effect of separating the rotating bottom plate 2 and the turntable bottom plate 1, the rotating bottom plate 2 is fixed on the turntable bottom plate, supported by deep groove ball bearings 6.
The rotary bottom plate 2 is provided with a printing group wallboard 3 through bolts and is used for supporting a printing group and a paper guide roller through which paper passes.
The safety disc 7 is provided with a positioning block 10, the lower part of the turntable base plate 1 is provided with two limiting blocks 8 corresponding to the positioning block 10, so that the safety disc 7 can only rotate 180 degrees, and the positioning block 10 is in contact with the limiting blocks 8, thereby limiting the rotation device.
When rotating, loosen four fixing bolts 4 (install on rotating bottom plate 2, when not rotating, will rotate bottom plate 2 and fix at carousel bottom plate 1 through bolt 4), rotate eccentric shaft 5 and let whole rotating bottom plate 2 and carousel bottom plate 1 separate, and support through deep groove ball bearing 6 (deep groove ball bearing 6 sets up the tip at eccentric shaft 5, the center of deep groove ball bearing 6 of eccentric shaft 5 tip deviates from the axle center, the center moves down, play the effect that makes rotating bottom plate 2 and carousel bottom plate 1 separate, manual rotation printing group wallboard 3, let rotating bottom plate 2 and printing group wallboard 3 rotate 180 degrees on the horizontal plane simultaneously, when rotating to 180 degrees, stopper 8 restricts whole rotary device and live the position, realize rotary device and rotate 180 degrees's conversion on the horizontal plane.
Claims (3)
1. A double-colored printing rotary device for double-colored printing machine, double-colored printing machine includes the organism, its characterized in that: the machine body is provided with a rotating device, a printing mechanism of a printing machine is arranged on the rotating device, and the printing mechanism comprises a first printing mechanism and a second printing mechanism;
the rotating device comprises a turntable bottom plate, the turntable bottom plate is fixed on a frame of the machine body, a rotating bottom plate is fixedly mounted on the turntable bottom plate through bolts, a safety disc is fixedly mounted below the turntable bottom plate through bolts, a shaft seat is fixed on the rotating bottom plate through bolts, the rotating bottom plate is arranged above the turntable bottom plate, an eccentric shaft is arranged on the shaft seat, and a deep groove ball bearing is arranged at the end part of the eccentric shaft.
2. The two-color printing rotary device for two-color printing press according to claim 1, characterized in that: and the rotary bottom plate is provided with a printing group wallboard through a bolt.
3. The two-color printing rotary device for two-color printing press according to claim 1, characterized in that: the safety disc is provided with a positioning block, and the lower part of the bottom plate of the rotary disc is provided with two limiting blocks corresponding to the positioning block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131398.3U CN211684015U (en) | 2020-01-20 | 2020-01-20 | Two-color printing rotating device for two-color printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131398.3U CN211684015U (en) | 2020-01-20 | 2020-01-20 | Two-color printing rotating device for two-color printing machine |
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| Publication Number | Publication Date |
|---|---|
| CN211684015U true CN211684015U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020131398.3U Active CN211684015U (en) | 2020-01-20 | 2020-01-20 | Two-color printing rotating device for two-color printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211684015U (en) |
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2020
- 2020-01-20 CN CN202020131398.3U patent/CN211684015U/en active Active
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