CN113135015B - Gravure printing roller for three-dimensional printing lines and manufacturing method - Google Patents
Gravure printing roller for three-dimensional printing lines and manufacturing method Download PDFInfo
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- CN113135015B CN113135015B CN202110548397.8A CN202110548397A CN113135015B CN 113135015 B CN113135015 B CN 113135015B CN 202110548397 A CN202110548397 A CN 202110548397A CN 113135015 B CN113135015 B CN 113135015B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/18—Impression cylinders
- B41F13/187—Impression cylinders for rotogravure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/22—Means for cooling or heating forme or impression cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention discloses a gravure printing roller for three-dimensional printing lines and a manufacturing method thereof, wherein the gravure printing roller comprises the following steps: the printing roller comprises a printing roller body with a hollow structure, and a first valve core and a second valve core which are respectively arranged at two ends of the printing roller body, wherein the first valve core and the second valve core can axially slide along the inside of the printing roller body and are locked at a certain fixed position; the printing roller body is provided with a plurality of axial holes which are axially arranged and uniformly distributed along the printing roller body, and two ends of all the axial holes are provided with radial holes which are radially arranged and conducted inside the printing roller body; the end parts of the first valve core and the second valve core are provided with main channels with closed bottoms, and the first channel and the second channel are arranged. When the axial holes are in a parallel connection mode, the second channel is sealed by the printing roller body, and the first channel is communicated with the radial holes; when the axial holes are in a series connection mode, the first channel is sealed by the printing roller body, and the second channel is communicated with the radial holes. The invention can realize the switching between the parallel connection mode and the serial connection mode of the cooling channel in the gravure printing roller, so that the cooling channel meets different cooling requirements.
Description
Technical Field
The invention relates to the technical field of gravure printing rollers, in particular to a gravure printing roller with three-dimensional printing lines and a manufacturing method thereof.
Background
With the improvement of the intaglio printing process level, part of the intaglio printing rollers need to be cooled in a liquid cooling mode when in use. The liquid cooling methods of the gravure printing roller in the prior art are mainly three, one is a direct roller inner through type, and application number 2007201865998 discloses a cooling roller, namely, the whole gravure printing roller is a liquid flow channel, the cooling method has the defect of wasting the cooling liquid, and the actual cooling effect is not good because the distance between the cooling liquid and the outer surface of the gravure printing roller is too large.
Secondly, the side part of the gravure printing roller is cooled in a punching mode, and the cooling effect is good because the distance between the cooling liquid and the outer surface of the gravure printing roller is not large and the cooling holes can not reduce the strength and the rigidity of the gravure printing roller too much. However, the cooling mode has certain defects, because the cooling holes are axially distributed on the gravure printing roller, the cooling holes can be connected in series or in parallel when in use, and when the cooling mode is adopted for cooling, the requirement on the liquid flow is high, the energy consumption is high, and the temperature is not easy to control; when the serial cooling is adopted, the cooling effect is to be improved. In view of the foregoing, there is a need in the art for an intaglio printing roller that can be switched between series and parallel connection.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the intaglio roller with the three-dimensional pattern and the manufacturing method thereof, and solves the technical problems that the liquid cooling mode of the intaglio roller is single and cannot be switched in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an intaglio printing roller for three-dimensional pattern printing: the printing roller comprises a printing roller body with a hollow structure, and a first valve core and a second valve core which are respectively arranged at two ends of the printing roller body, wherein the first valve core and the second valve core can axially slide along the inside of the printing roller body and are locked at a certain fixed position;
the printing roller body is provided with a plurality of axial holes which are axially arranged and uniformly distributed along the printing roller body, and two ends of all the axial holes are provided with radial holes which are radially arranged and conducted inside the printing roller body;
the end parts of the first valve core and the second valve core are respectively provided with a main channel with a closed bottom, and the first valve core and the second valve core are respectively provided with a plurality of channels, all the channels are positioned on the same plane, and the first channel is radially arranged and communicated with the main channel;
the second channels are multiple, all the second channels are located on the other plane, all the second channels are radially arranged, adjacent second channels are communicated with each other and are not communicated with the main channel, and one second channel is communicated with the main channel;
the number of the axial holes, the number of the radial holes, the number of the first channels and the number of the second channels are all odd;
when the axial holes are in a parallel connection mode, the second channel is sealed by the printing roller body, and the first channel is communicated with the radial holes;
when the axial holes are in a series connection mode, the first channel is sealed by the printing roller body, and the second channel is communicated with the radial holes.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: guide pillars used for preventing the first valve core and the second valve core from rotating relative to the printing roller body are further arranged between the first valve core, the second valve core and the printing roller body, the cross sections of the guide pillars are regular hexagons, guide plates are arranged in the printing roller body, and the guide plates are connected with the guide pillars through regular hexagonal holes.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: a synchronous driving device used for enabling the first valve core and the second valve core to synchronously and oppositely move is arranged between the first valve core and the second valve core; the synchronous driving device comprises two racks which are respectively connected with the two guide pillars and the tooth surfaces of which are arranged oppositely, the two racks are connected through a gear, and the axis of the gear is connected with the printing roller body.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: and a positioning and locking assembly is further arranged between the main channel and the printing roller body, the positioning and locking assembly comprises an end cover, an end cover nut and a check ring connected with an inner hole of the printing roller body through threads, the check ring is arranged on the outer sides of the first valve element and the second valve element, the end cover nut is connected with the main channel through threads and fixes the end cover on the end part of the printing roller body, and a sealing gasket is further arranged between the end cover nut and the end part of the printing roller body.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: the end cover comprises an outer end cover and an inner end cover, one end of the outer end cover is connected with an inner hole at the end part of the printing roller body through a spigot, a plurality of conical grooves which are uniformly distributed on the circumference are arranged at the other end of the outer end cover, and the depth of each conical groove is reduced from the end part to the inside in sequence; the side part of the inner end cover is provided with a conical key matched with the shape of the conical groove, and when the outer end cover is connected with the inner end cover, the conical key is connected with the conical groove.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: and the adjacent second channels are connected through arc channels.
As a preferred aspect of the present invention, the intaglio roller for three-dimensional printing described above: the number of the axial holes and the number of the radial holes are eleven, and the number of the first channel and the second channel on a single valve core is eleven.
The manufacturing method of the gravure printing roller based on the three-dimensional pattern comprises the following steps: the following sequence of operations was followed:
inserting the first valve core and the second valve core into the inner hole from two ends of the printing roller body respectively at an angle corresponding to tooth surfaces of the two racks, and enabling the two racks to be meshed with the gear simultaneously;
screwing the retainer ring into the inner hole of the printing roller body from the end part of the printing roller body, and matching the position of the retainer ring with the conduction mode of the axial hole;
sequentially installing a sealing gasket, an end cover and an end cover nut, and enabling the locking torque of the end cover nut to reach a preset value;
when the conduction mode of the axial hole is adjusted, the end cover nut and the end cover are sequentially disassembled;
rotating the retainer ring and enabling the position of the retainer ring to be matched with the other conduction mode of the axial hole;
and sequentially installing a sealing gasket, an end cover and an end cover nut, and enabling the locking torque of the end cover nut to reach a preset value.
The invention achieves the following beneficial effects: the invention can realize the switching between the parallel connection mode and the serial connection mode of the cooling channel in the gravure printing roller, so that the cooling channel meets different cooling requirements.
When the cooling mode of the invention is switched, the invention can be realized only by axially adjusting the axial position of the valve core without replacing the printing roller body.
Drawings
FIG. 1 is an isometric view of an intaglio printing roll for three-dimensional embossing according to the present invention;
FIG. 2 is a partial exploded view of a three-dimensional engraved printing roll of the present invention;
FIG. 3 is a cross-sectional view of a three-dimensional embossed gravure roll of the present invention;
FIG. 4 is an enlarged partial view of an end of the body of the printing roll of the present invention;
FIG. 5 is a front view of the first valve cartridge of the present invention;
FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;
FIG. 7 is a cross-sectional view taken at B-B of FIG. 5;
FIG. 8 is a schematic view of the axial bores of the present invention connected in series;
FIG. 9 is a schematic view of the axial bores of the present invention connected in parallel;
the meaning of the reference numerals: 1-a printing roller body; 2-outer end cover; 3-a sealing gasket; 4-a main channel; 5-inner end cap; 6-valve core one; 601-valve core two; 7-guide pillar; 8-gear; 11-axial bore; 12-a radial hole; 13-a guide plate; 14-a gear holder; 15-a retainer ring; 21-a tapered slot; 22-a spigot; 41-end cap nut; 51-tapered bond; 61-channel one; 62-channel two; 621-arc channel; 622-feed and discharge channel; 71-rack.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 9: the embodiment discloses an intaglio printing roller with three-dimensional patterns, which comprises: the printing roller comprises a printing roller body 1 with a hollow structure, a first valve core 6 and a second valve core 601 which are respectively arranged at two ends of the printing roller body 1, wherein the first valve core 6 and the second valve core 601 can axially slide along the inside of the printing roller body 1 and are locked at a certain fixed position. The printing roller body 1 is provided with a plurality of axial holes 11 which are axially arranged and uniformly distributed along the printing roller body 1, and two ends of all the axial holes 11 are provided with radial holes 12 which are radially arranged and communicated with the inside of the printing roller body 1; the axial bores 11 and the radial bores 12 together form a cooling channel of the printing roller body 1.
The end parts of the first valve core 6 and the second valve core 601 are respectively provided with a main channel 4 with a closed bottom, and are respectively provided with a first channel 61 and a second channel 62, the first channel 61 is provided with a plurality of channels, all the first channels 61 are positioned on the same plane, and the first channels 61 are radially arranged and communicated with the main channel 4.
The second channels 62 are multiple, and all the second channels 62 are located on another plane (a certain distance from the plane where the first channels 61 are located), all the second channels 62 are radially arranged, and the adjacent second channels 62 are communicated with each other and are not communicated with the main channel 4, wherein one second channel 62 is communicated with the main channel 4. As shown in fig. 6, the adjacent second channels 62 are communicated through the arc channel 621, one of the second channels 62 is a feeding and discharging channel 622, and the feeding and discharging channel 622 is communicated with the main channel 4. The circular arc passage 621 can reduce the liquid resistance.
The number of the axial holes 11, the radial holes 12, the first channels 61 and the second channels 62 is odd; when guaranteeing its series connection mode like this, cooling channel's feed inlet, discharge gate switch on respectively in two main entrance 4 at both ends. In practice, the main channel 4 can be used as the central shaft of the entire gravure roll.
The number of the axial holes 11 and the radial holes 12 is preferably eleven, and the number of the first channel 61 and the second channel 62 on a single valve core is also preferably eleven.
When the axial holes 11 are in a parallel connection mode, the second channel 62 is sealed by the printing roller body 1, and the first channel 61 conducts the radial holes 12; when the axial holes 11 are connected in series, the first channel 61 is sealed by the printing roller body 1, and the second channel 62 leads the radial holes 12. The gaps between the first valve core 6, the second valve core 601 and the printing roller body 1 should be small enough, or a sealing ring is arranged on the outer surface of the valve core to ensure enough sealing performance.
Because the position of the valve core channel is required to be aligned with the position of the radial hole 12, a guide post 7 for preventing the valve core I6 and the valve core II 601 from rotating relative to the printing roller body 1 is further arranged between the valve core I6 and the printing roller body 1, the cross section of the guide post 7 is regular hexagon, a guide plate 13 is arranged in the printing roller body 1, and the guide plate 13 is connected with the guide post 7 through a regular hexagon hole and used for preventing the valve core (the valve core I6 and the valve core II 601) from rotating.
Because the switching of the connection mode of the cooling channel needs the synchronous action of the two valve cores, in order to facilitate the operation, a synchronous driving device for enabling the first valve core 6 and the second valve core 601 to synchronously and oppositely move is further arranged between the first valve core 6 and the second valve core 601; the synchronous driving device comprises two racks 71 which are respectively connected with the two guide posts 7 and the tooth surfaces of which are arranged oppositely, the two racks are connected through a gear 8, the axis of the gear 8 is connected with the printing roller body 1, a gear bracket 14 is arranged in the printing roller body 1, and the central shaft of the gear 8 is fixed on the gear bracket 14.
After the switching is completed, it is still necessary to ensure the fixing of the position of the valve core and the printing roller body 1, and the connection precision and strength between the main channel 4 and the printing roller body 1, therefore, a positioning and locking assembly is further provided between the main channel 4 and the printing roller body 1 in this embodiment, the positioning and locking assembly includes an end cover, an end cap nut 41 and a retainer ring 15 connected to the inner hole of the printing roller body 1 through a thread, the retainer ring 15 is provided outside the first valve core 6 and the second valve core 601, the end cap nut 41 is connected to the main channel 4 through a thread, and the end cap is fixed to the end portion of the printing roller body 1, and a sealing gasket 3 is further provided between the end cap nut 41 and the end portion of the printing roller body 1.
The end cover comprises an outer end cover 2 and an inner end cover 5, one end of the outer end cover 2 is connected with an inner hole at the end part of the printing roller body 1 through a spigot 22, a plurality of conical grooves 21 are uniformly distributed on the other end of the outer end cover, and the depth of each conical groove 21 is reduced from the end part to the inside (from the end cover nut 41 connecting end to the printing roller body 1 connecting end). The side part of the inner end cover 5 is provided with a conical key 51 matched with the shape of the conical groove 21, when the outer end cover 2 is connected with the inner end cover 5, the conical key 51 is connected with the conical groove 21, and the conical groove 21 is extruded through the conical key 51, so that the coaxiality of the end cover and the printing roller body 1 can be conveniently improved.
The embodiment also discloses a manufacturing method of the gravure roller with the three-dimensional pattern, which comprises the following steps: the following sequence of operations was followed:
the first valve core 6 and the second valve core 601 are respectively inserted into the inner holes from two ends of the printing roller body 1 at an angle corresponding to tooth surfaces of the two racks 71, and the two racks are simultaneously meshed with the gear 8, so that the axial positions of the first valve core 6 and the second valve core 601 can be ensured to be matched with the corresponding radial holes 12.
Then screwing the retainer ring 15 into the inner hole of the printing roller body 1 from the end part of the printing roller body 1, and matching the position of the retainer ring with the conduction mode of the axial hole 11; the retainer ring 15 is used for limiting the axial position of the valve element.
Then, the sealing gasket 3, the end cover and the end cover nut 41 are sequentially installed, the locking torque of the end cover nut 41 reaches a preset value, and the end cover nut 41 firmly pulls the end part of the valve core to be tightly attached to the retainer ring 15.
When the conduction mode of the axial hole 11 is adjusted, the end cover nut 41 and the end cover are sequentially detached, then the retainer ring 15 is rotated, and the position of the retainer ring is matched with the other conduction mode of the axial hole 11;
the sealing gasket 3, the end cover and the end cover nut 41 are sequentially installed, and the locking torque of the end cover nut 41 reaches a preset value.
With reference to fig. 8 and 9, for the convenience of viewing, fig. 8 and 9 illustrate the axial hole 11, the radial hole 12, the first channel 61, and the second channel 62 in five numbers, and the same principle applies when the number is 11. In the state of fig. 8, the circular arc channel 621 communicates the adjacent second channels 62, so as to communicate the adjacent cooling channels (the axial hole 11 and the radial hole 12), and the feeding and discharging channels 622 at the two ends communicate the two main channels 4 and the plurality of cooling channels connected in series, thereby forming a closed circulation loop.
When switched to the parallel state, the second all channels 62 are respectively communicated with the cooling channels, and all the cooling channels are connected in parallel through the two main channels 4.
Compared with the prior art, the cooling channel switching device can realize switching between a parallel connection mode and a series connection mode of the cooling channel in the gravure printing roller, so that different cooling requirements can be met.
When the cooling mode of the embodiment is switched, the cooling mode can be realized only by axially adjusting the axial position of the valve core without replacing the printing roller body 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an intaglio printing roller of three-dimensional seal line which characterized in that: the printing roller comprises a printing roller body (1) with a hollow structure, a first valve core (6) and a second valve core (601) which are respectively arranged at two ends of the printing roller body (1), wherein the first valve core (6) and the second valve core (601) can axially slide along the inside of the printing roller body (1) and are locked at a certain fixed position;
the printing roller body (1) is provided with a plurality of axial holes (11) which are axially arranged and uniformly distributed along the printing roller body (1), and two ends of all the axial holes (11) are provided with radial holes (12) which are radially arranged and communicated with the inside of the printing roller body (1);
the end parts of the first valve core (6) and the second valve core (601) are respectively provided with a main channel (4) with a closed bottom, and are respectively provided with a first channel (61) and a second channel (62), the first channels (61) are provided with a plurality of channels, all the first channels (61) are positioned on the same plane, and the first channels (61) are radially arranged and communicated with the main channels (4);
the second channels (62) are multiple, all the second channels (62) are positioned on the other plane, all the second channels (62) are arranged in a radial direction, the adjacent second channels (62) are communicated with each other and are not communicated with the main channel (4), and one second channel (62) is communicated with the main channel (4);
the number of the axial holes (11) and the number of the radial holes (12) are odd;
the number of the first channel (61) and the second channel (62) on a single valve core is odd;
when the axial holes (11) are connected in parallel, the second channel (62) is sealed by the printing roller body (1), and the first channel (61) is communicated with the radial holes (12);
when the axial holes (11) are connected in series, the first channel (61) is sealed by the printing roller body (1), and the second channel (62) is communicated with the radial holes (12).
2. The intaglio printing roller for three-dimensional printing according to claim 1, wherein: the printing roller is characterized in that guide pillars (7) used for preventing the first valve element (6) and the second valve element (601) from rotating relative to the printing roller body (1) are further arranged among the first valve element (6), the second valve element (601) and the printing roller body (1), the cross sections of the guide pillars (7) are regular hexagons, guide plates (13) are arranged in the printing roller body (1), and the guide plates (13) are connected with the guide pillars (7) through regular hexagon holes.
3. The intaglio printing roller for three-dimensional printing according to claim 2, wherein: a synchronous driving device used for enabling the first valve core (6) and the second valve core (601) to synchronously and oppositely move is further arranged between the first valve core (6) and the second valve core (601); the synchronous driving device comprises two racks (71) which are respectively connected to the two guide columns (7) and the tooth surfaces of which are arranged oppositely, the two racks are connected through a gear (8), and the axis of the gear (8) is connected with the printing roller body (1).
4. The intaglio printing roller for three-dimensional printing according to claim 1, wherein: still be equipped with the location locking subassembly between main entrance (4) and seal roller body (1), the location locking subassembly includes end cover, end cover nut (41) and passes through check ring (15) of threaded connection in seal roller body (1) hole, check ring (15) set up in the outside of case one (6), case two (601), end cover nut (41) are through threaded connection main entrance (4), and are fixed in the tip of seal roller body (1) with the end cover, still be equipped with sealed pad (3) between end cover nut (41) and seal roller body (1) tip.
5. The intaglio printing roller for three-dimensional printing according to claim 4, wherein: the end cover comprises an outer end cover (2) and an inner end cover (5), one end of the outer end cover (2) is connected with an inner hole at the end part of the printing roller body (1) through a spigot (22), the other end of the outer end cover is provided with a plurality of conical grooves (21) which are uniformly distributed on the circumference, and the depth of the conical grooves (21) is reduced from the end part to the inside in sequence; the side part of the inner end cover (5) is provided with a conical key (51) matched with the shape of the conical groove (21), and when the outer end cover (2) is connected with the inner end cover (5), the conical key (51) is connected with the conical groove (21).
6. The intaglio printing roller for three-dimensional printing according to claim 1, wherein: the adjacent second channels (62) are connected through the circular arc channel (621).
7. The intaglio printing roller for three-dimensional printing according to claim 1, wherein: the number of the axial holes (11) and the number of the radial holes (12) are eleven, and the number of the first channel (61) and the second channel (62) on a single valve core is eleven.
8. The method for manufacturing the intaglio roller based on the three-dimensional printing patterns of any one of claims 1 to 7, is characterized in that: the following sequence of operations was followed:
inserting the valve core I (6) and the valve core II (601) into the inner hole from two ends of the printing roller body (1) respectively at an angle of opposite tooth surfaces of the two racks (71), and enabling the two racks to be meshed with the gear (8) simultaneously;
screwing the retainer ring (15) into the inner hole of the printing roller body (1) from the end part of the printing roller body (1), and matching the position of the retainer ring with the conduction mode of the axial hole (11);
sequentially installing a sealing gasket (3), an end cover and an end cover nut (41), and enabling the locking torque of the end cover nut (41) to reach a preset value;
when the conduction mode of the axial hole (11) is adjusted, the end cover nut (41) and the end cover are sequentially disassembled;
rotating the retainer ring (15) and matching the position of the retainer ring with the other conduction mode of the axial hole (11);
the sealing gasket (3), the end cover and the end cover nut (41) are sequentially installed, and the locking torque of the end cover nut (41) reaches a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110548397.8A CN113135015B (en) | 2021-05-19 | 2021-05-19 | Gravure printing roller for three-dimensional printing lines and manufacturing method |
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| CN202110548397.8A CN113135015B (en) | 2021-05-19 | 2021-05-19 | Gravure printing roller for three-dimensional printing lines and manufacturing method |
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| CN113135015B true CN113135015B (en) | 2021-09-24 |
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| CN105817481A (en) * | 2015-01-07 | 2016-08-03 | 大连宝锋机器制造有限公司 | Adjustable cooling roller |
| DE102017125836A1 (en) * | 2017-11-06 | 2019-05-09 | Brückner Maschinenbau GmbH & Co. KG | chill roll |
| CN212046363U (en) * | 2019-11-20 | 2020-12-01 | 甘肃楷越建设工程有限公司 | Water-cooling heat dissipation printing roller |
| CN111113143A (en) * | 2019-12-20 | 2020-05-08 | 珠海格力电器股份有限公司 | Cooling system, electric spindle and numerical control machine tool |
| CN211942503U (en) * | 2020-03-04 | 2020-11-17 | 龙游运申制版有限公司 | Leather water-based printing gravure roller |
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| CN113135015A (en) | 2021-07-20 |
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Inventor after: Zhang Shu Inventor after: Cai Menghu Inventor after: Zhang Hailong Inventor before: Zhang Hailong Inventor before: Cai Menghu Inventor before: Zhang Shu |