Circulating cooling intaglio roller device

Abstract

The utility model belongs to the technical field of gravure rollers, and particularly relates to a circulating cooling gravure roller device which comprises a gravure cylinder, an inner supporting cylinder and two connectors. A hollow rotating shaft I is arranged at one end of the gravure cylinder; a plurality of guide grooves distributed in the circumferential direction and two annular grooves close to the two ends are formed in the periphery of the inner supporting cylinder, a second hollow rotating shaft is arranged at the end, away from the first hollow rotating shaft, of the inner supporting cylinder, a plurality of through holes are formed in the two annular grooves, and the two annular grooves communicate with the interior of the first hollow rotating shaft and the interior of the second hollow rotating shaft through the through holes correspondingly; circulating cooling water is injected between the gravure cylinder body and the inner supporting cylinder, high temperature generated by friction is taken away through the cooling water, the temperature of a plate roller is reduced, the purpose of keeping the conventional temperature zone of printing ink is achieved, and therefore the conditions of plate blocking and plate drying are reduced, and the printing quality is improved. The service life of the printing roller is prolonged, and the product printing quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gravure printing plate rollers, and in particular relates to a circulating cooling gravure printing plate roller device. Background Art

[0002] When the gravure plate is running at high speed, the scraper is pressed on the plate for a long time, and the friction generates high temperature. The high temperature is released into the ink, and the temperature of the ink rises. Due to the characteristics of water-based ink, the solvent is composed of water and alcohol, which accelerates the evaporation of the solvent, resulting in easy blockage of the printed product, dry plate and poor ink transfer, affecting product quality and plate durability. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a circulating cooling gravure roller device, which can remove the temperature of the gravure roller by introducing circulating cooling water, reduce plate blockage and plate drying, improve ink transferability, and enhance product printing quality.

[0004] The utility model provides a circulating cooling gravure printing plate roller device, comprising:

[0005] A gravure printing cylinder, one end of which is provided with a hollow rotating shaft 1;

[0006] An inner support cylinder is fixedly arranged in the gravure cylinder body, a plurality of guide grooves distributed circumferentially and two annular grooves near two ends are opened on the outer circumference of the inner support cylinder, the two ends of the plurality of guide grooves are respectively connected with the two annular grooves, a hollow shaft 2 is arranged at one end of the inner support cylinder away from the hollow shaft 1, a plurality of through holes are opened in the two annular grooves, and the two annular grooves are respectively connected with the interior of the hollow shaft 1 and the interior of the hollow shaft 2 through the plurality of through holes; and

[0007] Two connectors are respectively arranged at the first end of the hollow rotating shaft and the second end of the hollow rotating shaft for sealing and rotation, and the two connectors are respectively connected to the water inlet pipe and the water outlet pipe.

[0008] Optionally, both ends of the inner support cylinder are provided with partitions, the two partitions are respectively connected with the interior of the hollow rotating shaft one and the interior of the hollow rotating shaft two, and the two annular grooves are respectively connected with the two partitions through through holes.

[0009] Optionally, a threaded hole is provided on the inner side of one end of the gravure cylinder close to the hollow rotating shaft one, and the threaded hole extends to the hollow rotating shaft one. A threaded cylinder is provided at one end of the inner support cylinder, and the threaded cylinder is screwed to the threaded hole.

[0010] Optionally, one end of the inner support cylinder is fixedly connected to a fixing plate, the second hollow rotating shaft is fixed to the fixing plate, and the fixing plate is fixedly connected to the gravure cylinder body by bolts.

[0011] Optionally, the fixing plate is a circular plate, and its diameter is the same as the outer diameter of the inner support tube. The fixing plate is fixed to one end of the inner support tube by screws or welding. A plurality of screw holes are provided on the outer periphery of the fixing plate, and a corresponding plurality of countersunk holes are provided on the gravure cylinder body. The fixing plate and the gravure cylinder body are connected by a plurality of bolts.

[0012] Optionally, sealing rings are embedded at both ends of the inner support tube, and the two ends of the inner support tube are sealed with the gravure cylinder through the sealing rings.

[0013] Optionally, sealing rings are embedded in the two connectors, and the two connectors are respectively rotatably sealed with the hollow rotating shaft one and the hollow rotating shaft two through the sealing rings.

[0014] Optionally, the circulating cooling gravure plate roller device further includes two clamping fixing seats for fixing the two connecting heads respectively.

[0015] Optionally, the clamping fixing seat includes a base and a pressing plate, the base is provided with a positioning groove, the connecting head is arranged in the positioning groove, and the pressing plate and the base are connected by bolts to fasten the connecting head.

[0016] Optionally, the hollow rotating shaft 1 and the hollow rotating shaft 2 are respectively connected to the bearing 1 and the bearing 2.

[0017] The beneficial effect of the utility model is that the cooling water flows through the hollow shaft 2, the connector, the through hole and the annular groove at one end of the inner support cylinder in sequence, and enters the annular groove, at which time the heat of the gravure cylinder is absorbed, and then the cooling water flows through the annular groove, the through hole and the connector at the other end in sequence to the hollow shaft 2 and then flows out, and the circulation in the water inlet pipe and the water outlet pipe is circulating cooling, so that by injecting circulating cooling water between the gravure cylinder and the inner support cylinder, the high temperature generated by friction is taken away by the cooling water, and the temperature of the plate roller is reduced, so as to achieve the purpose of maintaining the normal temperature range of the ink, thereby reducing the blockage and dry plate situation, improving the ink transfer and the life of the plate roller, and improving the printing quality of the product. In addition, the main body of the gravure plate roller is designed as an inner and outer double-layer structure composed of the gravure cylinder and the inner support cylinder, the printed pattern is engraved on the surface of the gravure cylinder, and the inner support cylinder is used to support the gravure cylinder, so that the gravure cylinder can be designed to be as light and thin as possible, and not easy to deform, and the inner support cylinder is a hollow structure, and the cooling water only flows from the guide groove, which reduces the overall weight of the gravure plate roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the circulating cooling gravure printing plate roller device provided by the utility model;

[0019] Figure 2 A cross-sectional view of the circulating cooling gravure printing plate roller device provided by the utility model;

[0020] Figure 3for Figure 2 A magnified view of area A in;

[0021] Figure 4 This is a schematic structural diagram of the inner support tube provided by the utility model.

[0022] In the figure: 10, gravure cylinder; 11, hollow shaft 1; 12, countersunk hole; 13, bearing 1; 20, inner support cylinder; 21, guide groove; 22, annular groove; 23, through hole; 24, hollow shaft 2; 25, compartment; 26, fixing plate; 261, screw hole; 27, threaded cylinder; 28, bearing 2; 29, sealing ring; 30, connector; 31, sealing ring; 40, clamping seat; 41, base; 42, pressure plate. DETAILED DESCRIPTION

[0023] like Figure 1-4 As shown, the utility model provides a circulating cooling gravure plate roller device, comprising: a gravure cylinder 10, an inner support cylinder 20 fixedly arranged in the gravure cylinder 10, and two connecting heads 30; wherein, a hollow rotating shaft 11 is arranged at one end of the gravure cylinder 10; a plurality of guide grooves 21 distributed circumferentially and two annular grooves 22 near the two ends are provided on the outer periphery of the inner support cylinder 20, and the two ends of the plurality of guide grooves 21 are respectively connected with the two annular grooves 22, and a hollow rotating shaft 24 is arranged at the end of the inner support cylinder 20 away from the hollow rotating shaft 11, and a plurality of through holes 23 are provided in the two annular grooves 22, and the two annular grooves 22 are respectively connected with the interior of the hollow rotating shaft 11 and the interior of the hollow rotating shaft 24 through the plurality of through holes 23; the two connecting heads 30 are respectively arranged at the ends of the hollow rotating shaft 11 and the hollow rotating shaft 24 for sealing rotation, and the two connecting heads 30 are respectively connected with the water inlet pipe and the water outlet pipe.

[0024] Compared with the prior art, the utility model provides a circulating cooling gravure plate roller device, in which cooling water flows through the hollow shaft 24, the connector 30, the through hole 23 and the annular groove 22 at one end of the inner support cylinder 20 in sequence, and enters the annular groove 22, at which time it absorbs the heat of the gravure cylinder 10, and then the cooling water flows through the annular groove 22, the through hole 23 and the connector 30 at the other end in sequence, flows to the hollow shaft 24 and then flows out, and circulating cooling flows in the water inlet pipe and the water outlet pipe. In this way, by injecting circulating cooling water between the gravure cylinder 10 and the inner support cylinder 20, the high temperature generated by friction is taken away by the cooling water, the temperature of the plate roller is reduced, and the purpose of maintaining the normal temperature range of the ink is achieved, thereby reducing plate clogging and plate drying, improving ink transferability and plate roller life, and improving product printing quality. In addition, the main body of the gravure roller is designed as an inner and outer double-layer structure consisting of a gravure cylinder 10 and an inner support cylinder 20. The printed pattern is engraved on the surface of the gravure cylinder 10, and the inner support cylinder 20 is used to support the gravure cylinder 10. In this way, the gravure cylinder 10 can be designed to be as light and thin as possible and not easy to deform. The inner support cylinder 20 is a hollow structure, and the cooling water only flows through the guide groove 21, which reduces the overall weight of the gravure roller.

[0025] In one embodiment, see Figure 2 Both ends of the inner support tube 20 are provided with compartments 25, and the two compartments 25 are respectively connected with the interior of the hollow shaft 11 and the interior of the hollow shaft 2 24, and the two annular grooves 22 are respectively connected with the two compartments 25 through the through holes 23.

[0026] Specifically, the main structure of the inner support cylinder 20 is made of a steel cylinder, and a linear guide groove 21 of a moving depth is opened in the circumferential direction of the cylinder. The number of the guide grooves 21 is 10-30, and an annular groove 22 is opened near the two ends of the cylinder respectively. The depth of the annular groove 22 is not less than the depth of the guide groove 21, and a plurality of circular through holes 23 are opened along the annular groove 22. The through holes 23 at both ends extend to the hollow rotating shaft 11 and the hollow rotating shaft 24 respectively; the compartment 25 is formed by two steel plates welded in the inner support cylinder 20 at intervals. The compartment 25 plays a buffering role, so that the cooling water introduced from the hollow rotating shaft 24 can flow to the surroundings more evenly, thereby making the water flow in each guide groove 21 more uniform, which is beneficial to absorbing heat and cooling the gravure cylinder 10.

[0027] In one embodiment, refer to Figure 2, a threaded hole is provided on the inner side of one end of the gravure cylinder 10 near the hollow rotating shaft 11, and the threaded hole extends to the hollow rotating shaft 11, and a threaded cylinder 27 is provided at one end of the inner support cylinder 20, and the threaded cylinder 27 is screwed with the threaded hole. Specifically, a threaded hole is provided along the axis at the inner end of the gravure cylinder 10, or the end cover and the main body of the gravure cylinder 10 are two parts, the end cover is first coaxially welded and fixed with the hollow rotating shaft 11, and then a threaded hole is provided, and then the end cover is welded to the main body of the gravure cylinder 10; a threaded cylinder 27 is welded and fixed on a steel plate forming a compartment 25 at one end of the inner support cylinder 20, and a connecting hole is provided on the steel plate to communicate with the threaded cylinder 27, and the inner support cylinder 20 is fixedly installed in the gravure cylinder 10 by screwing the threaded cylinder 27 with the threaded hole, so that the inner support cylinder 20 and the gravure cylinder 10 are detachable structures.

[0028] In one embodiment, one end of the inner support cylinder 20 is fixedly connected with a fixing plate 26, the hollow shaft 24 is fixed on the fixing plate 26, and the fixing plate 26 is fixedly connected to the gravure cylinder 10 by bolts. In this way, the connection strength between the inner support cylinder 20 and the gravure cylinder 10 is improved, and the stability of the rotating gravure plate roller is improved.

[0029] Specifically, the fixing plate 26 is a circular plate, and its diameter is the same as the outer diameter of the inner support cylinder 20. The fixing plate 26 is fixed to one end of the inner support cylinder 20 by screws or welding. 4-8 screw holes 261 are opened on the outer periphery of the fixing plate 26, and 4-8 corresponding countersunk holes 12 are opened on the gravure cylinder 10. After the inner support cylinder 20 and the gravure cylinder 10 are screwed together through the threaded cylinder 27 and the threaded holes, each screw hole 261 is aligned with a countersunk hole 12, and the bolts are screwed into the countersunk holes 12, so that the fixing plate 26 and the gravure cylinder 10 are fixedly connected by 4-8 bolts.

[0030] In one embodiment, see Figure 3 The inner support tube 20 is provided with sealing rings 29 at both ends, and the inner support tube 20 is sealed with the gravure cylinder 10 through the sealing rings 29. In this way, the sealing between the gravure cylinder 10 and the inner support tube 20 is improved, and the cooling water is prevented from overflowing from between the fixing plate 26 and the gravure cylinder 10.

[0031] In one embodiment, refer to Figure 3 The two connectors 30 are both embedded with sealing rings 31, and the two connectors 30 are respectively engaged with the hollow shaft 11 and the hollow shaft 2 24 through the sealing rings 31 to prevent the cooling water from overflowing from the two connectors 30 and the hollow shaft 11 and the hollow shaft 2 24. The sealing structure of the hydraulic cylinder can also be used.

[0032] In one embodiment, the circulating cooling gravure roller device further comprises two clamping and fixing seats 40 for fixing the two connectors 30 respectively, so that the two connectors 30 are fixed and will not deviate when the gravure roller rotates. It should be noted that the gravure roller rotation adopts the existing technology, so it is not described here.

[0033] In a specific embodiment, the clamping and fixing seat 40 includes a base 41 and a pressing plate 42. A positioning groove is provided on the base 41. The connector 30 is provided in the positioning groove. The pressing plate 42 and the base 41 are connected by bolts to fasten the connector 30. Further, the outer periphery of the connector 30 is a rectangular profile, the positioning groove is a rectangular groove, the outer periphery of the connector 30 and the positioning groove are clearance-matched, the base 41 is provided with two screw holes 261, the pressing plate 42 has two round holes and the middle screw hole 261, and the base 41 and the pressing plate 42 are fastened by three bolts to press the connector 30.

[0034] In one embodiment, hollow shaft 11 and hollow shaft 2 24 are connected to bearing 13 and bearing 2 28 respectively. Bearing 13 and bearing 2 28 both have fixed seats, which are used to center and rotate hollow shaft 1 1 and hollow shaft 2 24 respectively, so that the gravure plate roller can rotate stably.

[0035] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0036] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A circulating cooling gravure printing plate roller device, characterized in that: include: A gravure printing cylinder (10), wherein one end of the gravure printing cylinder (10) is provided with a hollow rotating shaft 1 (11); An inner support cylinder (20) is fixedly arranged in the gravure printing cylinder body (10), the outer circumference of the inner support cylinder (20) is provided with a plurality of guide grooves (21) distributed in the circumferential direction and two annular grooves (22) near the two ends, the two ends of the plurality of guide grooves (21) are respectively connected to the two annular grooves (22), the end of the inner support cylinder (20) away from the hollow rotating shaft one (11) is provided with a hollow rotating shaft two (24), the two annular grooves (22) are provided with a plurality of through holes (23), and the two annular grooves (22) are respectively connected to the interior of the hollow rotating shaft one (11) and the interior of the hollow rotating shaft two (24) through the plurality of through holes (23); and Two connectors (30) are respectively arranged at the ends of the first hollow rotating shaft (11) and the second hollow rotating shaft (24) in a sealing and rotatable manner, and the two connectors (30) are respectively connected to the water inlet pipe and the water outlet pipe.

2. The circulating cooling gravure plate roller device according to claim 1, characterized in that: Both ends of the inner support cylinder (20) are provided with compartments (25), the two compartments (25) are respectively connected to the interior of the first hollow rotating shaft (11) and the interior of the second hollow rotating shaft (24), and the two annular grooves (22) are respectively connected to the two compartments (25) through through holes (23).

3. The circulating cooling gravure printing plate roller device according to claim 1, characterized in that: A threaded hole is provided on the inner side of one end of the gravure cylinder (10) close to the hollow rotating shaft (11), and the threaded hole extends to the hollow rotating shaft (11). A threaded cylinder (27) is provided at one end of the inner support cylinder (20), and the threaded cylinder (27) is screwed to the threaded hole.

4. The circulating cooling gravure printing plate roller device according to claim 1, characterized in that: One end of the inner support cylinder (20) is fixedly connected to a fixing plate (26), the second hollow rotating shaft (24) is fixed on the fixing plate (26), and the fixing plate (26) is fixedly connected to the gravure cylinder (10) by bolts.

5. The circulating cooling gravure plate roller device according to claim 4, characterized in that: The fixing plate (26) is a circular plate, and its diameter is the same as the outer diameter of the inner support tube (20). The fixing plate (26) is fixed to one end of the inner support tube (20) by screws or welding. A plurality of screw holes (261) are provided on the outer periphery of the fixing plate (26), and a corresponding plurality of countersunk holes (12) are provided on the gravure cylinder (10). The fixing plate (26) is connected to the gravure cylinder (10) by a plurality of bolts.

6. The circulating cooling gravure plate roller device according to claim 1, characterized in that: Sealing rings (29) are embedded at both ends of the inner support tube (20), and the two ends of the inner support tube (20) are sealed with the gravure printing cylinder (10) through the sealing rings (29).

7. The circulating cooling gravure plate roller device according to claim 1, characterized in that: A sealing ring (31) is embedded in each of the two connectors (30), and the two connectors (30) are respectively rotatably sealed with the first hollow rotating shaft (11) and the second hollow rotating shaft (24) through the sealing rings (31).

8. The circulating cooling gravure printing plate roller device according to claim 1, characterized in that: It also includes two clamping and fixing seats (40) for fixing the two connecting heads (30) respectively.

9. The circulating cooling gravure printing plate roller device according to claim 8, characterized in that: The clamping fixing seat (40) comprises a base (41) and a pressing plate (42); a positioning groove is provided on the base (41); the connecting head (30) is arranged in the positioning groove; and the pressing plate (42) and the base (41) are connected by bolts to fasten the connecting head (30).

10. The circulating cooling gravure printing plate roller device according to any one of claims 1 to 9, characterized in that: The hollow rotating shaft 1 (11) and the hollow rotating shaft 2 (24) are respectively connected to the bearing 1 (13) and the bearing 2 (28).

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