CN210211695U - Cooling roller for printing machine - Google Patents

Abstract

The utility model provides a chill roll for printing machine, include: a roll shaft and a roll body. The roll body is the cylinder, and the roll body has seted up perpendicularly in circular cross section's center and has changeed the hole, changes the hole and runs through whole roll body, and the roller is inserted and is located to change and is connected with the roll body in the hole. The roller body comprises a roller core and a roller shell, a water storage cavity is formed in the middle of the roller core and the roller shell, and the roller core and the roller shell are respectively connected with the rotating shaft. The roller is a cylinder, a shaft cavity is vertically formed in the center of the circular cross section of the roller, an input channel is formed in the roller core, and the shaft cavity and the water storage cavity are communicated with the input channel respectively. The roller core is provided with an output channel, and the shaft cavity and the water storage cavity are respectively communicated with the output channel. The part of the roll shaft between the input channel and the output channel is provided with a first partition plate, and the first partition plate partitions the shaft cavity. The cooling water is large in contact area with the roller shaft and the roller body, so that the cooling cost of the cooling roller for the printing machine is reduced while the good printing effect of the bottom plate to be printed by the printing machine is ensured.

Description

Cooling roller for printing machine

Technical Field

The utility model relates to a printing machine field especially relates to a chill roll for printing machine.

Background

As a device for printing characters and images, a printing machine is generally composed of mechanisms such as plate-setting, inking, stamping, conveying, curing, and the like. The curing mechanism is a device for curing and drying the printed and formed product. Taking a traditional four-color printing machine as an example, the surface pattern of the printed product is formed by overlapping four kinds of black, medium blue, brown and green printing inks, and the pattern formed by overlapping can be effectively dried and cured by timely curing treatment. In the process, the base plate to be printed needs to be sequentially dyed through four ink tanks, and each ink tank can rotate one plate roller at a high speed. When the traditional four-color printing machine works for a long time, the surface temperature of each printing roller can be increased due to the long-time high-speed operation of each printing roller, and when the surface temperature of each printing roller is too high, the printing effect of the four-color printing machine on a bottom plate to be printed can be influenced. The operation of the four-color printing press has to be stopped to cool down the respective printing rollers, which greatly affects the production efficiency of the four-color printing press.

In the process of regulating and controlling the temperature of a traditional temperature-controllable plate roller for a printing machine, the temperature of the plate roller in high-speed operation is reduced by arranging a cooling device on the plate roller. However, such a cooling method is costly, inefficient, and increases the structural complexity of the printing press.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a cooling roller for a printing machine, which aims at the technical problems of high cooling cost and low cooling efficiency.

A chill roll for a printing press, comprising: a roll shaft and a roll body;

the roller body is a cylinder, a rotating hole is vertically formed in the center of the circular cross section of the roller body, the rotating hole penetrates through the whole roller body, and the roller shaft is inserted into the rotating hole and connected with the roller body;

the roller body comprises a roller core and a roller shell, a water storage cavity is formed in the middle of the roller core and the roller shell, and the roller core and the roller shell are respectively connected with the roller shaft;

the roller shaft is a cylinder, a shaft cavity is vertically formed in the center of the circular cross section of the roller shaft, an input channel is formed in the roller core, and the shaft cavity and the water storage cavity are respectively communicated with the input channel; the roller core is provided with an output channel, and the shaft cavity and the water storage cavity are respectively communicated with the output channel; a first partition plate is arranged at the middle part of the roller shaft between the input channel and the output channel and partitions the shaft cavity;

in one embodiment, the first baffle is disposed proximate the input channel.

In one embodiment, the first partition fills the shaft cavity in portions of the input channel and the output channel.

In one embodiment, a second partition plate is arranged at the part of the roller shaft between the input channel and the output channel, and the second partition plate is arranged close to the output channel.

In one embodiment, the roller core is provided with a plurality of input channels and a plurality of output channels, and the input channels and the output channels are respectively arranged on two sides of the first partition plate.

In one embodiment, the input channel and the output channel are respectively arranged on two sides of the roller shaft.

In one embodiment, the cooling roller for the printing machine further comprises two fixing plates, the two fixing plates are respectively located at two sides of the roller body, and the two fixing plates are respectively connected with the roller body and the roller shaft.

In one embodiment, the cooling roller for the printing machine further comprises a water storage tank, a water pump, a first pipeline and a second pipeline; the input of water pump with the tank intercommunication, the output of water pump with the input of first pipeline intercommunication, the output of first pipeline with baffle one side the axial cavity intercommunication, the baffle another side the axial cavity with the input of second pipeline intercommunication, the output of second pipeline with the tank intercommunication.

In one embodiment, the cooling roller for the printing machine further comprises a high-altitude spraying device, the input end of the high-altitude spraying device is connected with the output end of the second pipeline, and the output end of the high-altitude spraying device corresponds to the water storage tank.

In one embodiment, the output end of the first pipeline is provided with a first valve, and the input end of the second pipeline is provided with a second valve.

Above-mentioned a chill roll for printing machine is at the operation in-process, and the roller shaft drives the roll body and rotates in order to cooperate the printing machine work. When the printing machine work for a long time, the surface temperature of the roller body can be increased due to the fact that the cooling rollers for the printing machine run at a high speed for a long time, cooling water is introduced into a shaft cavity of a roller shaft of the cooling roller for the printing machine, the cooling water enters a water storage cavity formed in the middle of a roller core and a roller shell of the roller body through an input channel and is used for cooling the cooling roller for the printing machine, the temperature of the cooling roller for the printing machine is increased after the cooling roller is cooled in the cooling water storage cavity, and the cooling water with the increased temperature flows into the shaft cavity of the roller shaft from the water storage cavity through an output channel under the action of water pressure and is discharged to the outside. Because the part of the roller shaft between the input channel and the output channel is provided with the first partition plate, the cooling water cannot directly pass through the shaft cavity. The cooling water needs to be discharged from the shaft cavity to the outside through the input passage, the water storage cavity and the output passage. The cooling water in the cooling roller for the printing machine is large in contact area with the roller shaft and the roller body, the cooling roller for the printing machine is dynamically cooled through flowing cooling water, the surface temperature of the cooling roller for the printing machine is effectively reduced, and the cooling cost of the cooling roller for the printing machine is reduced while the good printing effect of the printing machine on a bottom plate to be printed is guaranteed.

Drawings

FIG. 1 is a schematic diagram of a chill roll for a printing press in one embodiment;

FIG. 2 is another schematic view of the cooling roller for the printing press in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of a chill roll for a printing press in one embodiment;

FIG. 4 is a schematic diagram of a chill roll for a printing press in one embodiment;

FIG. 5 is a schematic diagram of a chill roll for a printing press in one embodiment;

FIG. 6 is a schematic diagram of a chill roll for a printing press in one embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2 together, the present invention provides a chill roll 10 for a printing press, the chill roll 10 for a printing press comprising: a roller shaft 100 and a roller body 200. The roller body 200 is a cylinder, a rotating hole (not shown) is vertically formed in the center of the circular cross section of the roller body 200, the rotating hole penetrates through the entire roller body 200, and the roller shaft 100 is inserted into the rotating hole and connected with the roller body 200. The roller shaft 100 is used for driving the roller body 200 to rotate. The roller body 200 includes a roller core 210 and a roller shell 220, a water storage cavity 230 is opened at a portion of the roller body 200 between the roller core 210 and the roller shell 220, and the roller core 210 and the roller shell 220 are respectively connected with the roller shaft 100. The water storage chamber 230 is used to store cooling water.

The roller shaft 100 is a cylinder, the roller shaft 100 is vertically provided with a shaft cavity 110 at the center of the circular cross section, the roller core 210 is provided with an input channel 211, and the shaft cavity 110 and the water storage cavity 230 are respectively communicated with the input channel 211. The cooling water enters the water storage chamber 230 through the shaft chamber 110 opened by the roller shaft 100 and the input passage 211. The roller core 210 is further provided with an output channel 212, and the shaft cavity 110 and the water storage cavity 230 are respectively communicated with the output channel 212. The cooling water in the water storage chamber 230 is heated by the cooling process and then discharged from the water storage chamber 230 through the output passage 212 and the shaft chamber 110. The roller shaft 100 is provided with a first partition 120 at a portion intermediate between the input passage 211 and the output passage 212, and the first partition 120 partitions the shaft cavity 110 so that the cooling water cannot directly pass through the shaft cavity 110.

In operation of the cooling roller 10 for a printing press, the roller shaft 100 drives the roller body 120 to rotate to cooperate with the printing press. When the printing press is operated for a long time, the cooling roller 10 for the printing press is operated at a high speed for a long time, causing the surface temperature of the roller body 120 to rise. Cooling water is introduced into the shaft cavity 110 of the roller shaft 100 of the cooling roller 10 for the printing machine, the cooling water enters the water storage cavity 230 through the input channel 211 to cool the cooling roller 10 for the printing machine, the temperature of the cooling water rises after the cooling roller 10 for the printing machine is cooled in the water storage cavity 230, and the cooling water with the temperature rising flows into the shaft cavity 110 of the roller shaft 100 from the water storage cavity 230 through the output channel 212 under the action of water pressure and is discharged to the outside. Since the portion of the roller shaft 100 intermediate the input passage 211 and the output passage 212 is provided with the first partition 120, the cooling water cannot directly pass through the shaft cavity 110. The cooling water is required to pass through the input passage 211, the water storage chamber 230, and the output passage 212 in order, and then discharged from the shaft chamber 110 to the outside. The cooling water in the cooling roller 10 for the printing machine has a large contact area with the roller shaft 100 and the roller body 120, and the cooling roller 10 for the printing machine is dynamically cooled by the flowing cooling water, so that the temperature of the surface of the cooling roller 10 for the printing machine is effectively reduced, and the cooling cost of the cooling roller 10 for the printing machine is reduced while the good printing effect of the printing machine on a base plate to be printed is ensured.

In order to further improve the cooling effect of the cooling roller for the printing press, in one embodiment, the input passage 211 and the output passage 212 are opened at both sides of the roller shaft 100, respectively. Like this, cooling water can circulate to the opposite side from one side of water storage chamber 230 and lower the temperature to roll body 200, has guaranteed the flow area of cooling water in water storage chamber 230, has improved the cooling effect that is used for the chill roll of printing machine.

In order to improve the structural strength of the cooling roller for the printing press, please refer to fig. 1 and fig. 2 together, in one embodiment, the cooling roller for the printing press further includes two fixing plates 300, the two fixing plates 300 are respectively located at two sides of the roller body 200, and the two fixing plates 300 are respectively connected with the roller body 200 and the roller shaft 100. As such, the two fixing plates 300 improve the structural strength of the cooling roller for a printing machine, increasing the lifespan of the cooling roller for a printing machine.

Since the portion between the first partition plate 120 and the input path 211 and the portion between the first partition plate 120 and the output path 212 are dead spaces, when the above-described cooling roller for a printing machine is operated for a long time, the dead spaces between the first partition plate 120 and the input path 211 and the dead spaces between the first partition plate 120 and the output path 212 may deposit some foreign substances, which are difficult to clean. In order to avoid deposition of impurities in dead space between the first partition plate 120 and the input channel 211, referring to fig. 3, in one embodiment, the first partition plate 120 is disposed close to the input channel 211. So that there is no dead space between the first partition 120 and the inlet passage 211, and the cooling water directly enters the water storage chamber 230 through the inlet passage 211 at the first partition 120 along the shaft chamber 110. In order to avoid the dead space between the first partition 120 and the output channel 212 from depositing impurities, in one embodiment, the first partition fills the shaft cavity in the input channel and the output channel, so that there is no dead space between the first partition 120 and the output channel 212, so that the cooling water directly enters the water storage cavity 230 through the input channel 211 on one side of the first partition 120 and flows out through the output channel 212 on the other side of the first partition 120 along the shaft cavity 110. In this way, maintainability of the chill roll for a printing press is improved.

In order to reduce the cost of eliminating the dead space between the first partition 120 and the output channel 212, referring to fig. 3, in one embodiment, the second partition 130 is disposed at the middle portion of the roller shaft 100 between the input channel 211 and the output channel 212, and the second partition 130 is disposed near the output channel 212. That is, the first partition 120 and the second partition 130 are hollow. In one aspect, the positioning of the second baffle 130 adjacent to the output channel 212 eliminates dead space in the middle of the first baffle 120 and the output channel 212. On the other hand, the second partition 130 is disposed close to the output passage 212, which reduces the cost of eliminating the dead space of the axial cavity 110 in the middle portion between the first partition 120 and the output passage 212. Secondly, the hollowing between the first and second partitions 120 and 130 reduces the weight of the roller shaft 100, thereby reducing the working power of the cooling roller for the printing machine, and further reducing the production cost of the cooling roller for the printing machine.

In order to increase the circulation speed of cooling water in the cooling roller for the printing press, referring to fig. 4, in one embodiment, the roller core 210 is provided with a plurality of input channels 211 and a plurality of output channels 212, and the plurality of input channels 211 and the plurality of output channels 212 are respectively provided at both sides of the first partition plate 120. It should be noted that, in the present embodiment, the input channel 211 close to the first partition plate 120 among the plurality of input channels 211 is tightly attached to the first partition plate 120, and the output channel 212 close to the first partition plate 120 among the plurality of output channels 212 is tightly attached to the first partition plate 120, so as to avoid dead corners near both sides of the first partition plate 120. In this way, the cooling water directly enters the water storage chamber 230 through the input channels 211 on one side of the first partition 120 and flows out through the output channels 212 on the other side of the first partition 120 along the shaft chamber 110, so that the circulation speed of the cooling water in the cooling roller for the printing machine is greatly increased, and the cooling time of the cooling roller for the printing machine is reduced.

In order to save water resources and reduce the cooling cost of the cooling roller for the printing press, please refer to fig. 1 and 5 together, in one embodiment, the cooling roller for the printing press further includes a water storage tank 400, a water pump 500, a first pipe 600 and a second pipe 700. The input end of the water pump 500 is communicated with the water storage tank 400, the output end of the water pump 500 is communicated with the input end of the first pipeline 600, the output end of the first pipeline 600 is communicated with the axial cavity 110 on one side of the partition plate 120, the axial cavity 110 on the other side of the partition plate 120 is communicated with the input end of the second pipeline 700, and the output end of the second pipeline 700 is communicated with the water storage tank 400. In the working process of the cooling roller for the printing machine, the water pump 500 is used for pumping cooling water in the water storage tank 400 to the shaft cavity 110 of the roller shaft 100 through the first pipeline 600, the cooling water enters the water storage cavity 230 formed in the middle of the roller core 210 and the roller shell 220 through the input channel 211 under the action of water pressure to perform cooling treatment on the cooling roller for the printing machine, the temperature of the cooling water rises after the cooling roller for the printing machine is cooled in the water storage cavity 230, the cooling water with the temperature rising flows into the shaft cavity 110 from the water storage cavity 230 through the output channel 212 under the action of the water pressure, and the cooling water flowing into the shaft cavity 110 is discharged into the water storage tank 400 through the second pipeline 700. In this embodiment, the water reservoir 400 is an open water reservoir to ensure that the cooling water in the water reservoir dissipates heat through the opening. Therefore, the cooling water is recycled, and the cooling cost of the cooling roller for the printing machine is reduced.

In order to improve the cooling efficiency of the cooling water in the cooling roller for the printing press, please refer to fig. 1 and fig. 6 together, in one embodiment, the cooling roller for the printing press further comprises a high-altitude spraying device 800, an input end of the high-altitude spraying device 800 is connected with an output end of the second pipeline 700, and an output end of the high-altitude spraying device 800 is communicated with the water storage tank 400. That is, the cooling water flows out from the output end of the second pipe 700 and then falls into the water storage tank 400 from high altitude through the high altitude spraying device 800, and the temperature of the cooling water is reduced in the process of falling from high altitude. To further save the cooling cost of the cooling roller for the printing press, in the present embodiment, the output end of the first pipe 600 is provided with the first valve 610, and the input end of the second pipe 700 is provided with the second valve 710. When the shaft cavity 110 and the water storage cavity 230 are filled with the cooling water, the first valve 610 and the second pipe 700 are closed, the water pump 500 is turned off, so that the cooling water in the shaft cavity 110 and the water storage cavity 230 is cooled for a period of time, and after a period of time, the first valve 610, the second pipe 700 and the water pump 500 are turned on to replace the cooling water in the shaft cavity 110 and the water storage cavity 230. Thus, the cooling efficiency of the cooling water in the cooling roller for the printing machine is improved, the first valve 610 provided at the output end of the first pipe 600 and the second valve 710 provided at the input end of the second pipe 700 can prevent the water pump 500 from working for a long time, and the cooling cost of the cooling roller for the printing machine is reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A chill roll for a printing press, comprising: a roll shaft and a roll body;

the roller body is a cylinder, a rotating hole is vertically formed in the center of the circular cross section of the roller body, the rotating hole penetrates through the whole roller body, and the roller shaft is inserted into the rotating hole and connected with the roller body;

the roller body comprises a roller core and a roller shell, a water storage cavity is formed in the middle of the roller core and the roller shell, and the roller core and the roller shell are respectively connected with the roller shaft;

the roller shaft is a cylinder, a shaft cavity is vertically formed in the center of the circular cross section of the roller shaft, an input channel is formed in the roller core, and the shaft cavity and the water storage cavity are respectively communicated with the input channel; the roller core is provided with an output channel, and the shaft cavity and the water storage cavity are respectively communicated with the output channel; and a first partition plate is arranged at the part of the roll shaft between the input channel and the output channel and partitions the shaft cavity.

2. The chill roll for a printing press as recited in claim 1, wherein said first baffle is disposed proximate said input channel.

3. The chill roll for a printing press as recited in claim 1, wherein said first divider fills portions of said shaft cavity between said input channel and said output channel.

4. The chill roll for a printing press as recited in claim 2, wherein a portion of said roll axis intermediate said input and output channels is provided with a second baffle, said second baffle being disposed adjacent said output channel.

5. The chill roll for a printing press as recited in claim 1, wherein said roll core defines a plurality of said inlet channels and a plurality of said outlet channels, said plurality of inlet channels and said plurality of outlet channels respectively defined on opposite sides of said first divider.

6. The chill roll for a printing press as defined in claim 1 wherein the input channel and the output channel open on either side of the roll axis.

7. The cooling roller for a printing press as claimed in any one of claims 1 to 6, further comprising two fixing plates respectively located on both sides of the roller body, the two fixing plates being respectively connected to the roller body and the roller shaft.

8. The chill roll for a printing press as recited in claim 7, further comprising a water reservoir, a water pump, a first duct, and a second duct; the input of water pump with the tank intercommunication, the output of water pump with the input of first pipeline intercommunication, the output of first pipeline with the axle chamber intercommunication, the axle chamber with the input of second pipeline intercommunication, the output of second pipeline with the tank intercommunication.

9. The chill roll for a printing press as recited in claim 8, further comprising an overhead spray device, an input end of the overhead spray device being connected to an output end of the second duct, an output end of the overhead spray device corresponding to the water storage tank.

10. The chill roll for a printing press as recited in claim 8, wherein an output end of the first conduit is provided with a first valve and an input end of the second conduit is provided with a second valve.

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