Printing roller cooling mechanism

Abstract

The utility model discloses a printing roller cooling mechanism which comprises a printing roller body, a cooling assembly and an equalizing assembly. The cooling assembly comprises an inner rod movably installed in the printing roller body and an air inlet channel formed in the center of the inner rod, and multiple sets of blocking strips are fixedly arranged at the outer end of the inner rod. According to the printing roller cooling mechanism, when the printing roller body is used, cold air can evenly enter the multiple sets of cooling cavities and cooling openings between the blocking strips at the outer end of the inner rod through the air inlet channel in the inner rod, so that the outer end of the printing roller body is evenly and efficiently cooled, the cooling effect in the using process of the printing roller body is improved, and meanwhile the cooling effect is improved. And after being cooled, the cold air can be exhausted along the exhaust port in the fixed cover under the blocking of the blocking ring at the outer end, so that the problem that the exhausted high-temperature air is guided into the outer end of the air inlet channel to cause cooling of the internal cold air is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing rollers, in particular to a printing roller cooling mechanism. Background Art

[0002] The printing roller is one of the key components of the offset printing machine. It is used to transfer and apply ink during the printing process to ensure that the ink is evenly applied to the printing plate or paper to achieve high-quality printing effects. The printing roller cooling mechanism is an important component in the printing equipment for reducing the temperature of the printing roller.

[0003] Existing printing roller cooling mechanisms, such as a printing roller cooling mechanism for a printing device disclosed in publication number CN220500227U, have the advantages of being able to improve the heat dissipation efficiency of the roller body and avoid heat accumulation in the roller body. However, the cooling structure inside the printing roller is not convenient for the cold air to be directly close to the inner wall of the printing roller after passing through, and it is not convenient to ensure that the cold air can be evenly distributed to the inner wall around the printing roller during flow, thereby resulting in poor cooling uniformity. For this reason, we propose a printing roller cooling mechanism. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A printing roller cooling mechanism comprises: a printing roller body, a cooling assembly, and an equalizing assembly; the cooling assembly comprises an inner rod movably installed in the printing roller body, an air inlet channel opened at the center of the inner rod, a plurality of barrier strips arranged and fixedly installed at the outer end of the inner rod, a cooling cavity formed between the barrier strips in the printing roller body, cooling ports arranged and opened at the inner wall of the printing roller body, and a fixed cover fixedly installed on the inner rod; the equalizing assembly comprises an air outlet cone opened at one side of the air inlet channel, and a plurality of equalizing plates arranged and fixedly installed in the air outlet cone.

[0007] Preferably, a plurality of exhaust ports are arranged and penetrated in the fixed cover.

[0008] Preferably, a blocking ring is also fixedly mounted on the outer end of the fixed cover.

[0009] Preferably, threaded holes and mounting holes are respectively provided in the printing roller body and the fixing cover, and fastening screws are movably installed in the threaded holes at the outer ends of the fixing cover and the mounting holes.

[0010] Preferably, a heat insulation sleeve is fixedly installed in the air intake passage.

[0011] Preferably, a guide cone is fixedly mounted on one side of the printing roller body.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, when the printing roller body is in use, cold air can enter the multiple cooling cavities and cooling ports between the barrier strips at the outer end of the inner rod through the air inlet channel in the inner rod, thereby cooling the outer end of the printing roller body uniformly and efficiently to improve the cooling effect during use. At the same time, after cooling, the cold air can also be discharged along the exhaust port in the fixed cover under the blocking of the blocking ring at the outer end, thereby avoiding the problem of internal cold air cooling caused by the discharged high-temperature gas being introduced into the outer end of the air inlet channel;

[0014] 2. In the utility model, the outlet cone provided on one side of the air inlet channel, the equalizing plate installed in the outlet cone and the guide cone installed outside the outlet cone mainly ensure that the cold air introduced into the air inlet channel can be evenly distributed to the multiple cooling cavities at the outer end of the inner rod when discharged, so as to ensure uniform cooling of the printing roller body. The heat insulation sleeve fixedly installed in the air inlet channel is mainly used for temperature insulation during the introduction of cold air into the air inlet channel, thereby reducing heat dissipation during the circulation of cold air to ensure the subsequent cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 This is a disassembly diagram of the inner rod of the utility model;

[0017] Figure 3 Another perspective of the disassembly diagram of the inner rod of the utility model;

[0018] Figure 4 It is a side sectional view of the utility model;

[0019] Figure 5 It is a cross-sectional view of the utility model;

[0020] Figure 6 For this utility model Figure 5 A is an enlarged view of the middle image.

[0021] Reference numerals:

[0022] 100. Printing roller body;

[0023] 200, cooling assembly; 201, inner rod; 202, air inlet channel; 203, barrier strip; 204, cooling cavity; 205, cooling port; 206, fixing cover; 207, exhaust port; 208, blocking ring; 209, threaded hole; 210, mounting hole; 211, fastening screw;

[0024] 300, equalizing component; 301, air outlet cone; 302, equalizing plate; 303, thermal insulation sleeve; 304, guide cone. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] A printing roller cooling mechanism provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0027] Embodiment 1:

[0028] Combination Figure 1-4 As shown, the utility model provides a printing roller cooling mechanism, comprising: a printing roller body 100, a cooling assembly 200, and an equalizing assembly 300; the cooling assembly 200 comprises an inner rod 201 movably installed in the printing roller body 100, an air inlet channel 202 opened at the center of the inner rod 201, a plurality of barrier strips 203 arranged and fixedly installed at the outer end of the inner rod 201, a cooling cavity 204 formed between the barrier strips 203 in the printing roller body 100, cooling ports 205 arranged and opened at the inner wall of the printing roller body 100, and a fixed cover 206 fixedly installed on the inner rod 201; a plurality of exhaust ports 207 are arranged and opened through the fixed cover 206, a blocking ring 208 is fixedly installed at the outer end of the fixed cover 206, threaded holes 209 and mounting holes 210 are respectively opened in the printing roller body 100 and the fixed cover 206, and fastening screws 211 are movably installed in the threaded holes 209 and the mounting holes 210 at the outer end of the fixed cover 206.

[0029] Specifically, the printing roller is one of the key components of the offset printing machine, which is used to transfer and apply ink during the printing process. The printing roller cooling mechanism is an important component in the printing equipment for reducing the temperature of the printing roller. When the printing roller body 100 is in use, cold air can pass through the air inlet channel 202 in the inner rod 201 and evenly enter the multiple groups of cooling cavities 204 and cooling ports 205 between the barrier strips 203 at the outer end of the inner rod 201, thereby uniformly and efficiently cooling the outer end of the printing roller body 100 to improve its cooling effect during use. At the same time, after cooling, the cold air can also be discharged along the exhaust port 207 in the fixed cover 206 under the obstruction of the blocking ring 208 at the outer end, thereby avoiding the problem of internal cold air cooling caused by the exhaust high-temperature gas being introduced into the outer end of the air inlet channel 202. The cooling port 205 opened at the inner wall of the printing roller body 100 is mainly used to reduce the cooling thickness, thereby improving its cooling effect.

[0030] Embodiment 2:

[0031] Combination Figure 3 , Figure 5 , Figure 6As shown, on the basis of embodiment one, the equalizing component 300 includes an air outlet cone 301 opened on one side of the air inlet channel 202, a plurality of groups of equalizing plates 302 arranged and fixedly installed in the air outlet cone 301, a heat insulation sleeve 303 is also fixedly installed in the air inlet channel 202, and a guide cone 304 is also fixedly installed on one side of the printing roller body 100.

[0032] Specifically, the air outlet cone 301 arranged on one side of the air inlet channel 202, the equalizing plate 302 installed in the air outlet cone 301, and the guide cone 304 installed outside the air outlet cone 301 mainly ensure that the cold air entering the air inlet channel 202 can be evenly distributed to the multiple cooling chambers 204 at the outer end of the inner rod 201 when discharged, so as to ensure uniform cooling of the printing roller body 100. The heat insulation sleeve 303 fixedly installed in the air inlet channel 202 is mainly used for temperature insulation during the passage of cold air into the air inlet channel 202, thereby reducing heat dissipation during the circulation of cold air to ensure the subsequent cooling effect.

[0033] The working principle and use process of this utility model:

[0034] When the printing roller body 100 is cooled, cold air enters through the air inlet channel 202 at the outer end of the inner rod 201, and flows inwardly in insulation along the heat insulation sleeve 303 in the air inlet channel 202. When the cold air flows to the air outlet cone 301 at the inner end of the air inlet channel 202, it is evenly divided by the equalizing plate 302 in the air outlet cone 301, and evenly guided along the arc groove at the inner end of the guide cone 304 to flow into the multiple groups of cooling cavities 204 and cooling ports 205 at the outer end of the inner rod 201, so that when flowing in the cooling cavity 204 and the cooling port 205, the cold air is close to the inner wall of the printing roller body 100, so as to evenly cool the printing roller body 100 during use. After cooling, the cold air will be discharged along the exhaust port 207 in the fixed cover 206, and after being discharged, it will diffuse to the outer end under the blocking of the blocking ring 208 to avoid flowing out to the outer end of the air inlet channel 202.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A printing roller cooling mechanism, characterized in that: include: A printing roller body (100), a cooling component (200), and an equalizing component (300); The cooling assembly (200) comprises an inner rod (201) movably installed in a printing roller body (100), an air inlet channel (202) opened at the center of the inner rod (201), a plurality of groups of barrier strips (203) arranged and fixedly installed at the outer end of the inner rod (201), a cooling cavity (204) formed between the barrier strips (203) in the printing roller body (100), cooling ports (205) arranged and opened at the inner wall of the printing roller body (100), and a fixed cover (206) fixedly installed on the inner rod (201); The equalizing component (300) comprises an air outlet cone (301) opened on one side of the air inlet channel (202) and a plurality of groups of equalizing plates (302) arranged and fixedly installed in the air outlet cone (301).

2. A printing roller cooling mechanism according to claim 1, characterized in that: The fixed cover (206) is also provided with a plurality of exhaust ports (207) arranged and extending therethrough.

3. A printing roller cooling mechanism according to claim 1, characterized in that: A blocking ring (208) is also fixedly mounted on the outer end of the fixed cover (206).

4. A printing roller cooling mechanism according to claim 1, characterized in that: The printing roller body (100) and the fixing cover (206) are respectively provided with threaded holes (209) and mounting holes (210), and fastening screws (211) are movably installed in the threaded holes (209) and mounting holes (210) at the outer ends of the fixing cover (206).

5. A printing roller cooling mechanism according to claim 1, characterized in that: A heat insulation sleeve (303) is also fixedly installed in the air inlet passage (202).

6. A printing roller cooling mechanism according to claim 1, characterized in that: A guide cone (304) is also fixedly mounted on one side of the printing roller body (100).

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