阅读说明：本技术 一种用于大型印刷机的印刷辊 (Printing roller for large-scale printing machine ) 是由 不公告发明人 于 2020-07-15 设计创作，主要内容包括：本发明公开了一种用于大型印刷机的印刷辊,属于印刷辊,一种用于大型印刷机的印刷辊,包括内辊,所述内辊的内部固定连接有螺旋换热道,所述内辊的两端固定连接有均固定连接有安装轴,所述安装轴的内部开通有换气孔,所述内辊的两侧端均开设有通孔；通过换热机构和螺旋换热道,螺旋换热道增加了气流的速度和气流的接触面积,可以把外辊传给内辊内部的热量带走,大大的提升了内辊与外辊的散热效率,避免内辊内存有余热与外辊的热量相叠加从而进一步提升外辊的热量使之加速老化,延长了外辊的使用寿命,并且当外辊损坏时,将固定套卸下,然后直接换上新的外辊,无需将之全部更换,减小了印刷设备更换的成本。(The invention discloses a printing roller for a large-scale printing machine, which belongs to printing rollers and comprises an inner roller, wherein a spiral heat exchange channel is fixedly connected inside the inner roller, both ends of the inner roller are fixedly connected with mounting shafts, the inside of each mounting shaft is provided with a ventilation hole, and both side ends of the inner roller are provided with through holes; through heat transfer mechanism and spiral heat exchange way, the spiral heat exchange way has increased the speed of air current and the area of contact of air current, can pass to outer roller and take away the inside heat of interior roller, great promotion the radiating efficiency of interior roller and outer roller, thereby it has waste heat and the heat of outer roller to superpose mutually to avoid interior roller to further promote the heat of outer roller and make it ageing with higher speed, the life of outer roller has been prolonged, and when outer roller damaged, lift fixed cover off, then directly change new outer roller, need not whole the change with it, the cost of lithography apparatus change has been reduced.)

1. A printing roller for large printing machines, comprising an inner roller (1), characterized in that: the inner roller is characterized in that a spiral heat exchange channel (2) is fixedly connected to the inside of the inner roller (1), both ends of the inner roller (1) are fixedly connected with an installation shaft (3), ventilation holes (4) are formed in the installation shaft (3), through holes (5) are formed in both side ends of the inner roller (1), both ends of the inside of the inner roller (1) are rotatably connected with a damping support (6) through ball bearings, the damping support (6) is fixedly connected to the inside of the ball bearings, a heat exchange mechanism (7) is fixedly installed at the end part of the damping support (6), heat dissipation holes (8) are fixedly connected to the outside of the inner roller (1), the heat dissipation holes (8) are communicated with the spiral heat exchange channel (2) in the inner roller (1), a limit block (9) is fixedly connected to the right end part of the outer roller (1), and an outer roller (10) is sleeved on the outside of the inner roller (1), thread groove (11) have been seted up to the right-hand member of interior roller (1), the right-hand member of interior roller (1) has retainer plate (12) through thread groove (11) threaded connection, and outer roller (10) pass through spacing collar fixed mounting in the outside of interior roller (1).

2. A printing roller for a large scale printing press according to claim 1, characterized in that: the inside fixedly connected with first filter screen (13) of scavenge port (4), the inside fixedly connected with second filter screen (14) of through-hole (5), and the mesh aperture of first filter screen (13) and second filter screen (14) is 2-3 mm.

3. A printing roller for a large scale printing press according to claim 1, characterized in that: shock absorber support (6) are including fixed cover (61), shock attenuation layer (62), shock attenuation post (63), adapter sleeve pole (64) and damping spring (65), the inside of roller (1) in fixed cover (61) fixed connection, the inside at fixed cover (61) is established in shock attenuation layer (62), shock attenuation post (63) swing joint is in the inside of fixed cover (61), and shock attenuation post (63) and shock attenuation layer (62) fixed connection, link sleeve pole (64) fixed connection is at the lateral wall of heat transfer mechanism (7), damping spring (65) fixed connection is in the inside of connecting sleeve pole (64), the tip of shock attenuation post (63) stretches into the inside and damping spring (65) fixed connection of connecting sleeve pole (64).

4. A printing roller for a large scale printing press according to claim 1, characterized in that: the shock absorption layer (62) is a base body made of rubber materials, and steel wires are arranged inside the shock absorption layer (62).

5. A printing roller for a large scale printing press according to claim 1, characterized in that: heat transfer mechanism (7) include motor (71) and heat dissipation fan (72), motor (71) fixed connection is at the tip of shock absorber support (6), heat dissipation fan (72) fixed connection is at the output shaft tip of motor (71).

6. A printing roller for a large scale printing press according to claim 1, characterized in that: the outer side of the inner roller (1) is fixedly connected with a pin block (15), the inner side of the outer roller (10) is provided with a pin groove (16), and the pin block (15) is inserted into the pin groove (16).

7. A printing roller for a large scale printing press according to claim 1, characterized in that: one side threaded connection of retainer plate (12) has supplementary installation pole (17), the department that links to each other of retainer plate (12) and outer roller (10) is equipped with gasket (18).

Technical Field

The invention relates to the field of printing, in particular to a printing roller for a large-scale printing machine.

Background

In the literal sense, the marking is called printing, and the erasing is called brushing. The brush is used for wiping to make the mark on other objects, namely printing. In short, printing is the industry that produces printed matter. The production of printed matter is similar to that of a stamp. The seal is first engraved, then the seal is stained with printing ink, and then the printing ink on the seal is transferred to printing stocks such as paper, silk and leather, and the printed matter is obtained. The computer-printed document may be passed through a laser printer, an ink jet printer, or other computer printer. In recent years, computer printing and industrial printing processes have been merged together, resulting in the development of digital printing. Printing is a technique of transferring ink to the surface of paper, textiles, plastics, leather, PVC, PC, or other materials by plate making, inking, and pressing original documents such as characters, pictures, photographs, and forgery prevention, and copying the contents of the original documents in bulk. Printing is the process of transferring the approved printing plate to the printing stock by printing machine and special ink.

The printing roller is needed in printing, the key in the offset printing technology is the control of the balance of a water path and an ink path, the ink and water balance depends on a key part of a rubber roller and an ink roller, and the quality of the ink and water balance can be directly acted on the product quality. The general printing enterprises need to maintain the equipment once every week, wherein include the maintenance of printing roller, only maintain printing roller, just can make the life of printing roller longer, and printing roller often can receive the thermal influence surface ageing often, and the rubber that shows appears coming off, shortens life, and printing roller surface damage back generally directly changes its whole down, changes a new printing roller, and the economic cost who produces is also higher.

Disclosure of Invention

1. Technical problem to be solved

In view of the problems of the prior art, the invention aims to provide a printing roller for a large-scale printing machine (the first stage has the advantages)

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A printing roller for a large-scale printing machine comprises an inner roller, wherein a spiral heat exchange channel is fixedly connected inside the inner roller, both ends of the inner roller are fixedly connected with an installation shaft, a ventilation hole is formed in the installation shaft, both side ends of the inner roller are provided with through holes, both ends of the inner roller are rotatably connected with a damping bracket through ball bearings, the damping bracket is fixedly connected inside the ball bearings, the end part of the damping bracket is fixedly provided with a heat exchange mechanism, the outer side of the inner roller is fixedly connected with a heat dissipation hole, the heat dissipation hole is communicated with the spiral heat exchange channel inside the inner roller, the right end of the outer side of the inner roller is fixedly connected with a limiting block, the outer side of the inner roller is sleeved with an outer roller, the right end of the inner roller is provided with a thread groove, the right end of the inner roller is connected with a fixing ring through thread groove and thread, and the outer roller is fixedly installed on the, through heat transfer mechanism and spiral heat exchange way, the spiral heat exchange way has increased the speed of air current and the area of contact of air current, can pass to outer roller and take away the inside heat of interior roller, great promotion the radiating efficiency of interior roller and outer roller, thereby it has waste heat and the heat of outer roller to superpose mutually to avoid interior roller to further promote the heat of outer roller and make it ageing with higher speed, the life of outer roller has been prolonged, and when outer roller damaged, lift fixed cover off, then directly change new outer roller, need not whole the change with it, the cost of lithography apparatus change has been reduced.

Further, the inside fixedly connected with first filter screen of scavenge port, the inside fixedly connected with second filter screen of through-hole, and the mesh aperture of first filter screen and second filter screen is 2-3mm, and when heat transfer mechanism during operation, outside air enters into the inside of interior roller from the inside of scavenge port and through-hole, and setting up of first filter screen and second filter screen has prevented that external foreign matter from entering into the inside of interior roller, avoids the inside foreign matter that has of interior roller to cause the jam to influence the heat dissipation.

Furthermore, the damping support comprises a fixed sleeve, a damping layer, a damping column, a connecting sleeve rod and a damping spring, the fixed sleeve is fixedly connected inside the inner roller, the damping layer is arranged inside the fixed sleeve, the damping column is movably connected inside the fixed sleeve and fixedly connected with the damping layer, the connecting sleeve rod is fixedly connected with the side wall of the heat exchange mechanism, the damping spring is fixedly connected inside the connecting sleeve rod, the end part of the damping column extends into the inside of the connecting sleeve rod and is fixedly connected with the damping spring, when a motor in the heat exchange mechanism works, the motor can generate vibration force, the vibration force generated by the motor is transmitted to the connecting sleeve rod and the damping column, the connecting sleeve rod transmits the vibration force to the damping column, most of the vibration force can be eliminated through the damping spring between the damping column and the connecting sleeve rod, and the damping layer inside the fixed sleeve further improves the damping effect, the aftershocks are all counteracted.

Further, the shock absorption layer is the base member that the rubber material was made, and the inside on shock absorption layer is equipped with the steel wire, and the shock absorption layer that rubber was made not only has absorbing effect, but also has reduced because the noise that vibrations produced, prevents to cause the influence to the work of outer roller and interior roller.

Further, heat transfer mechanism includes motor and heat dissipation fan, motor fixed connection is at the tip of shock absorber support, heat dissipation fan fixed connection is at the output shaft tip of motor.

Further, the outside fixedly connected with round pin piece of interior roller, the cotter way has been seted up to the inboard of outer roller, and round pin piece pegs graft with the cotter way, and during the outer roller of installation, cup joint the outer roller in the outside of interior roller, and the cotter way pin joint of outer roller inside have helped outer roller to fix a position, prevent that outer roller from rotating at the during operation, are favorable to counterpointing the installation to outer roller.

Further, one side threaded connection of retainer plate has supplementary installation pole, the retainer plate is equipped with the gasket with outer roller department of linking to each other, utilizes supplementary installation pole to rotate the retainer plate, and the people of being convenient for fasten outer roller, and the retainer plate is equipped with the gasket with the junction of outer roller in addition, is favorable to improving the frictional force of outer roller and interior roller, prevents that the retainer plate from appearing not hard up.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through heat transfer mechanism and spiral heat transfer way, the spiral heat transfer way has increased the speed of air current and the area of contact of air current, can pass to outer roller and take away the inside heat of interior roller, great promotion the radiating efficiency of interior roller and outer roller, thereby it has waste heat and the heat of outer roller to superpose mutually to avoid interior roller to further promote the heat of outer roller and make it ageing with higher speed, the life of outer roller has been prolonged, and when outer roller damaged, lift fixed cover off, then directly change new outer roller, need not whole changes with it, the cost of lithography apparatus change has been reduced.

(2) The inside fixedly connected with first filter screen of scavenge port, the inside fixedly connected with second filter screen of through-hole, and the mesh aperture of first filter screen and second filter screen is 2-3mm, when heat transfer mechanism during operation, outside air enters into the inside of interior roller from the inside of scavenge port and through-hole, the setting up of first filter screen and second filter screen has prevented external foreign matter to enter into the inside of interior roller, avoid the inside foreign matter of depositing of interior roller to cause to block up the influence heat dissipation.

(3) The damping bracket comprises a fixed sleeve, a damping layer, a damping column, a connecting sleeve rod and a damping spring, the fixed sleeve is fixedly connected inside the inner roller, the damping layer is arranged inside the fixed sleeve, the damping column is movably connected inside the fixed sleeve, the shock absorption column is fixedly connected with the shock absorption layer, the connecting sleeve rod is fixedly connected with the side wall of the heat exchange mechanism, the shock absorption spring is fixedly connected inside the connecting sleeve rod, the end part of the shock absorption column extends into the connecting sleeve rod and is fixedly connected with the shock absorption spring, when the motor in the heat exchange mechanism works, the motor can generate vibration force, the vibration force generated by the motor is transmitted to the connecting sleeve rod and the shock absorption column, the connecting sleeve rod transmits the vibration force to the shock absorption column, most of the vibration force can be eliminated through the shock absorption spring between the shock absorption column and the connecting sleeve rod, and the shock absorption layer in the fixed sleeve further improves the shock absorption effect and offsets the aftershocks.

(4) The shock absorption layer is the base member that the rubber material was made, and the inside on shock absorption layer is equipped with the steel wire, and the shock absorption layer that rubber was made not only has absorbing effect, but also has reduced because the noise that vibrations produced, prevents to cause the influence to the work of outer roller and interior roller.

(5) The outside fixedly connected with round pin piece of interior roller, the cotter way has been seted up to the inboard of outer roller, and the cotter piece pegs graft with the cotter way, and during the outer roller of installation, cup joints the outer roller in the outside of interior roller, and the cotter way pin joint of outer roller inside have helped outer roller to fix a position, prevent that outer roller from rotating at the during operation, are favorable to counterpointing the installation to outer roller.

(6) One side threaded connection of retainer plate has supplementary installation pole, and the retainer plate is equipped with the gasket with the continuous department of outer roller, utilizes supplementary installation pole to rotate the retainer plate, and the people of being convenient for fasten outer roller, and the retainer plate is equipped with the gasket with the junction of outer roller in addition, is favorable to improving the frictional force of outer roller and interior roller, prevents that the retainer plate from appearing not hard up.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the fixed sleeve and inner roller of the present invention;

FIG. 3 is an enlarged view of section B of the present invention;

FIG. 4 is an enlarged view of portion A of the present invention;

FIG. 5 is a schematic view of the construction of the inner roll of the present invention;

fig. 6 is a cross-sectional view of the present invention.

The reference numbers in the figures illustrate:

1. an inner roll; 2. a spiral heat exchange channel; 3. installing a shaft; 4. a ventilation hole; 5. a through hole; 6. a shock-absorbing support; 61. fixing a sleeve; 62. a shock absorbing layer; 63. a shock-absorbing post; 64. connecting the loop bar; 65. a damping spring; 7. a heat exchange mechanism; 71. a motor; 72. a heat dissipation fan; 8. heat dissipation holes; 9. a limiting block; 10. an outer roller; 11. a thread groove; 12. a stationary ring; 13. a first filter screen; 14. a second filter screen; 15. a pin block; 16. a pin slot; 17. an auxiliary mounting rod; 18. and (7) a gasket.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.