CN111409349A - Dual-purpose printing equipment - Google Patents
Dual-purpose printing equipment Download PDFInfo
- Publication number
- CN111409349A CN111409349A CN202010430447.8A CN202010430447A CN111409349A CN 111409349 A CN111409349 A CN 111409349A CN 202010430447 A CN202010430447 A CN 202010430447A CN 111409349 A CN111409349 A CN 111409349A
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- Prior art keywords
- roller
- printing
- gravure roller
- scraper
- gravure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/38—Screens, Frames; Holders therefor curved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/08—Wiping mechanisms
- B41F9/10—Doctors, scrapers, or like devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses dual-purpose printing equipment which comprises a magnetic table, a replaceable printing plate and a scraping device, wherein the printing plate is any one of a round screen and a hollow gravure roller, when the printing plate is the hollow gravure roller, the gravure roller is a metal cylinder with no opening on the surface and 0.5-1 mm in thickness, a scraper mechanism is installed outside the gravure roller, a bearing roller support is fixedly installed inside the gravure roller along the axial direction of the gravure roller, two shaft ends of the bearing roller are fixedly installed on the bearing roller support through a connecting plate, and the bearing roller is tangent to the inner wall of the gravure roller at the position where the scraper abuts against the outer wall of the gravure roller. According to the invention, on the basis of not changing the parts below the guide belt of the circular screen printing machine on the production line, the gravure roller capable of replacing the circular screen and the scraper component matched with the gravure roller are arranged at the installation station of the circular screen, so that the transformation cost is low, the production line is optimized, and the printing pattern plate can be flexibly switched on the existing production line according to the production requirement.
Description
Technical Field
The invention relates to the field of textile machinery equipment, in particular to dual-purpose printing equipment.
Background
At present, disperse dye printing generally adopts the following modes:
1. transfer printing: the disperse dye is printed on the transfer paper by a digital jet printing or gravure printing mode, and then is thermally transferred to the fabric by a transfer printing machine. The method has the advantages that the sizing amount can be accurately controlled, and the method can avoid water washing after high-temperature baking, and has the defects of long process flow and high cost.
2. Printing by a gravure roller: the principle of gravure printing is that a concave dot matrix is processed on the surface of a steel roller by an electrical engraving or corrosion method according to a printing pattern, the depth of concave points is controlled according to the size application amount, then printing paste is fully distributed on the surface of the roller, paste outside the concave points is scraped by a scraper, the roller body is pressed tightly on a fabric, and at the moment, the paste in the concave points of the roller body is transferred to the fabric. The method has the advantages that the sizing amount can be accurately controlled, the gravure roller can be free from washing after being baked at high temperature, and the method has the defects of complex processing of the gravure roller and high roller manufacturing cost, and is suitable for the mass production and use of chemical fiber fabrics.
3. Rotary screen printing: the rotary screen is arranged on the machine frame at the two sides of the printing machine, the color paste scraper/magnetic roller is arranged on the scraper frame in the rotary screen, the color paste enters the rotary screen through the paste feeding pump through the paste pipe, and then the color paste is printed on the fabric through the meshes on the rotary screen by the color paste scraper/magnetic roller. The method has the advantages of low manufacturing cost of the rotary screen, quick reaction, suitability for small-batch and various products, long process flow, difficult control of sizing amount, waste of sizing agent and water waste, and the defects that the printing auxiliary agent needs to be removed by washing after printing baking.
The transfer printing and gravure printing roller printing can be used for disperse dye printing of chemical fiber fabrics due to the advantage of no water washing. However, for printing enterprises, the existing washing-free printing equipment is higher in manufacturing cost, and the cost burden of the enterprises is greatly increased by additionally arranging a production line for the disperse dye printing of small-batch chemical fiber fabrics. How to enable the existing rotary screen printing equipment to achieve the intaglio printing effect, and the washing-free printing can be realized without additionally arranging a production line is a subject worth researching in the field of printing equipment and has wide market prospect.
Disclosure of Invention
The invention aims to provide dual-purpose printing equipment.
The technical scheme for realizing the purpose of the invention is as follows: a dual-purpose printing device comprises a magnetic table, a replaceable printing plate and a scraping printing device, wherein the printing plate is arranged above the magnetic table in a liftable manner, a printing guide belt is arranged between the printing plate and the magnetic table, and a fabric to be printed is placed on the printing guide belt; the scraping and printing device comprises a magnetic roller and a slurry pipe used for supplying slurry to the printing plate, one end of the slurry pipe is closed, the other end of the slurry pipe is communicated with a slurry supply system, a plurality of slurry supply holes are formed in the bottom of the slurry pipe along the length direction of the slurry pipe, the magnetic roller is installed in the printing plate and attached to the inner wall of the bottom of the printing plate, and the magnetic roller is parallel to a roller shaft of the printing plate; the printing pattern plate is any one of a circular screen and a hollow gravure roller, when the printing pattern plate is a circular screen, the pulp pipe penetrates through the circular screen, the closed end of the pulp pipe penetrates out of the other shaft end of the circular screen from one shaft end of the circular screen through an inner cavity of the circular screen and then is fixed on a lifting mechanism for driving the circular screen to lift, a pulp feeding hole of the pulp pipe is opposite to the inner wall of the bottom of the circular screen, a drainage plate is arranged on the side wall of the pulp pipe along the length direction of the pulp pipe, the drainage plate downwards inclines from the side wall of the pulp pipe and extends to the side of the magnetic roller at the same side of the pulp pipe, and the inclined section of the drainage plate is; when the printing stencil is a hollow gravure roller, the gravure roller is a metal cylinder with no hole on the surface and 0.5-1 mm in thickness, a scraper mechanism is arranged outside the gravure roller, the scraper mechanism comprises a cutter shaft, a scraper seat and a scraper, the cutter shaft and the gravure roller are arranged in parallel, two ends of the cutter shaft are rotatably arranged on a cutter shaft lifting mechanism for driving the cutter shaft to lift, the scraper seat is fixedly arranged on the cutter shaft, the scraper is fixedly arranged on the scraper seat, the height of the cutter shaft and the distance between the cutter shaft and the gravure roller are limited by the fact that the scraper can conflict with the outer wall of the gravure roller when rotating downwards along with the cutter shaft, a bearing roller support is fixedly arranged inside the gravure roller along the axial direction of the gravure roller, two ends of a bearing roller are fixedly arranged on the bearing roller support through a connecting plate, and the bearing roller is tangent to the inner wall of the gravure roller where the outer walls of, two shaft ends of a support roller support extend out of the gravure roller and are connected with the gravure roller through bearings, two ends of the support roller are parallelly erected on a lifting mechanism for driving a circular screen to lift, a slurry pipe is installed on a rack above a joint of a cutting edge of a scraper and the outer wall of the gravure roller, and a cavity for receiving slurry is formed when the cutting edge of the scraper contacts with the outer wall of the gravure roller.
Further, the cutter shaft is installed on a rotary screen lifting mechanism, the rotary screen lifting mechanism comprises first air cylinders which are respectively installed on the machine frames at the two end sides of the printing stencil, and a support frame used for fixing the printing stencil and the cutter shaft is respectively installed on the free end of a piston rod of each first air cylinder. The structure that the printing stencil and the cutter shaft lift together is compact and has good synchronism.
On the basis of not changing the parts below the guide belt of the circular screen printing machine on the production line, the gravure roller capable of replacing the circular screen and the scraper component matched with the gravure roller are arranged at the installation station of the circular screen, so that the printing pattern plate can be flexibly switched on the existing production line according to the production requirement. The external dimension and the installation mode of the gravure roller are the same as those of a circular screen, compared with the traditional gravure roller, the gravure roller has the advantages of easiness in plate carving and low plate making cost, and the gravure carving under the assistance of the bearing roller can achieve the effect of simulating digital printing. The innovative dual-purpose printing equipment is particularly suitable for small-batch production of various printed fabrics, and has very wide application prospect.
Drawings
FIG. 1 is a schematic front view of a printing machine according to embodiment 1 of the present invention;
FIG. 2 is a schematic view, partly in section and partly in perspective, of FIG. 1 without the lifting mechanism;
FIG. 3 is a left-side partial perspective structural schematic view of the pulp tube, gravure roll and magnetic table in FIG. 1;
FIG. 4 is a schematic top view of the doctor mechanism of FIG. 1;
FIG. 5 is a schematic front view of a printing machine according to embodiment 2 of the present invention;
fig. 6 is a partially sectional and partially perspective structural schematic view of fig. 5 without the lifting mechanism.
Wherein the rotating arrow represents the direction of movement of the gravure roll and the horizontal arrow represents the direction of movement of the conduction band.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, a dual-purpose printing apparatus comprises a gravure roller 1, a magnetic table 2 and a scraping device 3, wherein the gravure roller 1 is opposite to the magnetic table 2 and is installed above the magnetic table 2 through a circular screen lifting mechanism in a liftable manner, a printing conduction band 4 is installed in a gap between the gravure roller 1 and the magnetic table 2 in a penetrating manner, a fabric 20 to be printed is placed on the printing conduction band 4, the scraping device 3 comprises a magnetic roller 31, a pulp pipe 32 for supplying pulp to the gravure roller 1 and a scraper mechanism 33, the magnetic roller 31 is installed in the gravure roller 1 and is attached to the inner wall of the bottom of the gravure roller 1, the magnetic roller 31 is parallel to the roller shaft of the gravure roller 1, one end of the pulp pipe 32 is closed, the other end of the pulp pipe 32 is communicated with a pulp supply system (not shown in the figure), and a pulp supply hole 321 is formed in the bottom of the pulp.
In the embodiment, the gravure roller 1 is a metal cylinder with a surface without holes and a thickness of 0.5-1 mm, the scraper mechanism 33 is installed outside the gravure roller 1, the scraper mechanism 33 includes a knife shaft 331, a scraper seat 332 and a scraper 333, the knife shaft 331 is parallel to the gravure roller 1, a bearing roller support 34 is fixedly installed inside the gravure roller 1 along the axial direction of the gravure roller, two ends of a bearing roller 35 are fixedly installed on the bearing roller support 34 through a connecting plate 36, the bearing roller 35 is tangent to the inner wall of the gravure roller 1 where the scraper 333 abuts against the outer wall 11 of the gravure roller 1, and two shaft ends of the bearing roller support 34 extend out of the gravure roller 1 and are connected with the gravure roller 1 through a bearing 37; the cylinder elevating system is including installing first cylinder 5 in 1 both ends of gravure roller frame 10 on the distolateral first cylinder 5, every the free end fixed mounting of the piston rod 51 of first cylinder 5 has a support frame 6, support roller support 34 both ends parallel mount is on two support frames 6, arbor 331 both ends rotatably parallel mount is on support frame 6, scrape blade holder 332 fixed mounting on arbor 331, scraper 333 fixed mounting is on scraping blade holder 332, the height of arbor 331 and gravure roller 1's interval can conflict as the limit with gravure roller 1 outer wall when scraper 333 is along with arbor 331 rotation downwards, form the cavity that is used for accepting the thick liquids when the cutting edge of scraper 333 contacts with gravure roller 1's outer wall.
When the device works, the slurry pipe supplies slurry to the joint of the cutting edge of the scraper and the outer wall of the gravure roller, then the gravure roller is rotated, the scraper is contacted with the rotating gravure roller to scrape the slurry outside the concave point, then the lifting cylinder is started to drive the gravure roller fixed on the support frame through the bearing roller and the scraper seat on the cutter shaft to descend until the gravure roller tightly presses the fabric, and then the slurry in the concave point of the roller body is transferred to the fabric; because the wall thickness of the gravure roller is very thin, the gravure roller still needs to be pressed downwards by a magnetic rod in the gravure roller, and a bearing roller is contacted with the rotating gravure roller to bear the pressure of a doctor blade on the gravure roller.
Example 2
As shown in fig. 5 and 6, a dual-purpose printing apparatus includes a circular screen 1 ', a magnetic table 2 ' and a scraping device 3 ', the circular screen 1 ' is installed on a station of the circular screen 1 ' instead of the gravure roll of embodiment 1, the scraping device 3 ' includes a magnetic roller 31 ' and a pulp tube 32 ', the magnetic roller 31 ' is installed in the circular screen 1 ' and attached to the inner wall of the bottom of the circular screen 1 ', the magnetic roller 31 ' is parallel to the roller shaft of the circular screen 1 ', the end of the pulp tube 32 ' is a closed end, the bottom of the pulp tube 32 ' is provided with a plurality of pulp feeding holes 321 ' along the length direction of the pulp tube, the end of the pulp tube 32 ' penetrates out of the inner cavity of the circular screen 1 ' from one shaft end of the circular screen 1 ' to the other shaft end of the circular screen 1 ' and then is fixed on a liftable support frame 6 ', the pulp feeding holes 321 ' of the pulp tube 32 ' are opposite to the inner wall of the bottom of the circular screen 1 ', the side wall of the pulp tube 32 ' is, the drainage plate 322 ' extends from the side wall of the pulp pipe to the side of the magnetic roller 31 on the same side, and the inclined section of the drainage plate 322 ' is positioned on the path of the pulp falling from the pulp hole 321 '.
When the rotary screen works, color paste flows to the bottom of the rotary screen from the paste supply holes on the paste supply pipe, and then is printed on the fabric through the meshes by the magnetic roller attracted with the magnetic table.
Both the gravure roll 1 in example 1 and the cylinder 1' in example 2 are printing plates according to the invention.
The dual-purpose printing equipment can flexibly replace the printing pattern plate according to production needs on the basis of not changing a magnetic table on a production line, and the novel gravure roller also improves the printing precision of the original rotary screen printing. Compared with a production line with a newly added gravure printing device in a factory building, the dual-purpose printing device greatly reduces the investment cost of enterprises, and is particularly suitable for small-batch production of various printed fabrics.
The thickness of the innovative intaglio plate net wall is within 1mm, normal engraving operation of engraving equipment can be ensured by additionally arranging a bearing roller in the net during plate making, and the intaglio roller is made of common metal for intaglio rollers on the market and is not described herein again; the lifting device for driving the printing plate to lift is not limited to a lifting cylinder, and can also be other conventional lifting devices in the mechanical field such as screw rod lifting and the like; the gravure roller and the cutter shaft can be lifted independently, but the lifting structure jointly fixed on the support frame is more compact and has good synchronism; the structure of the device for driving the knife shaft to rotate is the prior art, and for example, the angle adjusting mechanism for the scraper device of the intaglio printing machine described in patent number 201520561584.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent flow transformations made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (2)
1. A dual-purpose printing equipment which is characterized in that: the printing device comprises a magnetic table, a replaceable printing plate and a scraping printing device, wherein the printing plate is arranged above the magnetic table in a liftable manner, a printing guide belt is arranged between the printing plate and the magnetic table, and a fabric to be printed is placed on the printing guide belt; the scraping and printing device comprises a magnetic roller and a slurry pipe used for supplying slurry to the printing plate, one end of the slurry pipe is closed, the other end of the slurry pipe is communicated with a slurry supply system, a plurality of slurry supply holes are formed in the bottom of the slurry pipe along the length direction of the slurry pipe, the magnetic roller is installed in the printing plate and attached to the inner wall of the bottom of the printing plate, and the magnetic roller is parallel to a roller shaft of the printing plate; the printing pattern plate is any one of a circular screen and a hollow gravure roller, when the printing pattern plate is a circular screen, the pulp pipe penetrates through the circular screen, the closed end of the pulp pipe penetrates out of the other shaft end of the circular screen from one shaft end of the circular screen through an inner cavity of the circular screen and then is fixed on a circular screen lifting mechanism for driving the circular screen to lift, a pulp feeding hole of the pulp pipe is opposite to the inner wall of the bottom of the circular screen, a drainage plate is arranged on the side wall of the pulp pipe along the length direction of the pulp pipe, the drainage pipe downwards inclines from the side wall of the pulp pipe to extend to the side of the magnetic roller at the same side of the pulp pipe, and the inclined section of the drainage plate is; when the printing stencil is a hollow gravure roller, the gravure roller is a metal cylinder with no hole on the surface and 0.5-1 mm in thickness, a scraper mechanism is arranged outside the gravure roller, the scraper mechanism comprises a cutter shaft, a scraper seat and a scraper, the cutter shaft and the gravure roller are arranged in parallel, two ends of the cutter shaft are rotatably arranged on a cutter shaft lifting mechanism for driving the cutter shaft to lift, the scraper seat is fixedly arranged on the cutter shaft, the scraper is fixedly arranged on the scraper seat, the height of the cutter shaft and the distance between the cutter shaft and the gravure roller are limited by the fact that the scraper can conflict with the outer wall of the gravure roller when rotating downwards along with the cutter shaft, a bearing roller support is fixedly arranged inside the gravure roller along the axial direction of the gravure roller, two ends of a bearing roller are fixedly arranged on the bearing roller support through a connecting plate, and the bearing roller is tangent to the inner wall of the gravure roller where the outer walls of, two shaft ends of the bearing roller support extend out of the gravure roller and are connected with the gravure roller through bearings, two ends of the bearing roller are parallelly erected on the circular screen lifting mechanism, the pulp pipe is installed on the rack above the joint of the cutting edge of the scraper and the outer wall of the gravure roller, and a cavity for receiving pulp is formed when the cutting edge of the scraper contacts with the outer wall of the gravure roller.
2. The dual-purpose printing apparatus of claim 1, wherein: the cutter shaft is installed on the rotary screen lifting mechanism, the rotary screen lifting mechanism comprises first air cylinders which are respectively installed on the machine frames at the two end sides of the printing stencil, and a support frame used for fixing the printing stencil and the cutter shaft is respectively installed on the free end of a piston rod of each first air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430447.8A CN111409349A (en) | 2020-05-20 | 2020-05-20 | Dual-purpose printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430447.8A CN111409349A (en) | 2020-05-20 | 2020-05-20 | Dual-purpose printing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111409349A true CN111409349A (en) | 2020-07-14 |
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ID=71488723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010430447.8A Pending CN111409349A (en) | 2020-05-20 | 2020-05-20 | Dual-purpose printing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111409349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537123A (en) * | 2020-11-27 | 2021-03-23 | 博格曼(江苏)纺织科技有限公司 | Circular screen printer |
-
2020
- 2020-05-20 CN CN202010430447.8A patent/CN111409349A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537123A (en) * | 2020-11-27 | 2021-03-23 | 博格曼(江苏)纺织科技有限公司 | Circular screen printer |
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