CN113400775A

CN113400775A - Printing roller used for printing machine and convenient to adjust temperature

Info

Publication number: CN113400775A
Application number: CN202110847358.8A
Authority: CN
Inventors: 杨震
Original assignee: Individual
Current assignee: Shandong Damei New Materials Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-09-17
Anticipated expiration: 2041-07-27
Also published as: CN113400775B

Abstract

The invention discloses a printing roller convenient for temperature adjustment for a printing machine, which comprises a printing mechanism, a first mounting mechanism, a second mounting mechanism, a water circulation mechanism and a heating mechanism, wherein the printing mechanism comprises a rotating shaft, a positioning ring, a printing sleeve, a mounting head, a fixing sleeve, a heat transfer element and a pipeline, the rotating shaft is hollow, one end of the rotating shaft is opened, the inside of the rotating shaft is connected with the heat transfer element tightly contacted with the inner wall of the rotating shaft through a screw, the pipeline is arranged on the inner side of the heat transfer element, one end of the pipeline extending into the rotating shaft is not contacted with the inner wall of the rotating shaft, the mounting head is integrally formed in the center of the other end of the rotating shaft, and a slot with a regular cross section is formed in the center of one end of the mounting head far away from the rotating shaft. The invention realizes the function of conveniently replacing and cleaning the printing sleeve, can realize the function of heating the printing sleeve before use, and can realize the function of cooling the printing sleeve in the use process.

Description

Printing roller used for printing machine and convenient to adjust temperature

Technical Field

The invention relates to the technical field of printing, in particular to a printing roller which is used for a printing machine and is convenient for temperature adjustment.

Background

Printing machines are machines for printing text and images, modern printing machines generally consisting of plate-loading, inking, stamping, paper-feeding, etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate. The printing roller is one of essential parts in the printing machine, and before the printing roller is used, the temperature of the printing roller is low, so that the printing quality is not facilitated; in the using process, the printing roller which runs at a high speed can be used for printing the printed material, but in the using process of the printing roller, the printing roller can rub when in contact with the printed material, so that a large amount of heat can be generated in long-time running, when the heat on the surface of the printing roller cannot be timely removed, certain damage can be caused to the printed material, and great inconvenience is brought to the printing work; after the printing roller is used, ink can be attached to the printing roller, glazing on the surface of the printing roller is easily caused, and therefore the printing roller used for a printing machine and convenient for temperature adjustment is provided.

Disclosure of Invention

The present invention is directed to solving the above problems by providing a printing roller for a printing machine that facilitates temperature adjustment.

The invention realizes the purpose through the following technical scheme:

a printing roller convenient for temperature adjustment for a printing machine comprises a printing mechanism, a first mounting mechanism, a second mounting mechanism, a water circulation mechanism and a heating mechanism, wherein the printing mechanism comprises a rotating shaft, a positioning ring, a printing sleeve, a mounting head, a fixing sleeve, a heat transfer element and a pipeline, the rotating shaft is hollow and has an opening at one end, the rotating shaft is internally connected with the heat transfer element which is tightly contacted with the inner wall of the rotating shaft through a screw, the pipeline is arranged at the inner side of the heat transfer element, one end of the pipeline extending into the rotating shaft is not contacted with the inner wall of the rotating shaft, the mounting head is integrally formed at the center of the other end of the rotating shaft, a slot with a regular cross section is arranged at the center of one end of the mounting head far away from the rotating shaft, the positioning ring, the printing sleeve and the fixing sleeve are sequentially arranged at the outer side of the rotating shaft, the first mounting mechanism comprises a bearing connecting column, a connecting rod, a spring and an inserting rod, one side of the bearing connecting column close to the mounting head is integrally formed with the connecting rod, the center of one side of the connecting rod, which is close to the mounting head, is provided with a chute corresponding to the position and the shape of the slot, the inner side of the chute is connected with an insert rod in a sliding manner, one side of the insert rod is fixedly connected with a spring, one end of the spring, which is far away from the insert rod, is fixed in the chute, the second mounting mechanism comprises a bearing connecting sleeve, a connecting nut and a water pipe connector, one side of the bearing connecting sleeve, which is close to the rotating shaft, is welded with the connecting nut, the connecting nut is screwed outside the rotating shaft, the inner side of one end, which is far away from the connecting nut, of the bearing connecting sleeve is in interference fit with the water pipe connector, the water circulation mechanism comprises a water tank, a refrigerator, a drain pipe, a water inlet pipe, a connecting water pipe and a water pump, the refrigerator is arranged in the water tank, the top of the water tank is communicated with one end of the drain pipe, one end, which is far away from the water tank, is connected outside the water pipe connector through a sealing bearing, one end of the water inlet pipe is connected to the inner side of the water pipe connector through a sealing bearing, one end of the water inlet pipe, which is far away from the water pipe connector, penetrates through the water discharge pipe and is connected to the top of the heating mechanism, the bottom of the heating mechanism is connected with a connecting water pipe, one end of the connecting water pipe, which is far away from the heating mechanism, is connected to the water outlet end of the water pump through a hose clamp, the water pump is connected to one side of the water tank through a bolt, the connecting nut can be rotated to separate the rotating shaft from the connecting nut, the inserted rod is pushed, the inserted rod extrudes the spring to separate the inserted rod from the slot, the fixing sleeve is rotated to separate the fixing sleeve from the mounting head, so that the printing sleeve can be dismounted, the function of conveniently replacing and cleaning the printing sleeve is realized, the water pump and the heating mechanism can be started before use, the water pumped by the water pump is sprayed into the rotating shaft after being heated by the heating mechanism, the heat is rapidly transmitted by the heat transfer piece, the printing sleeve is at a proper temperature, and the function of heating the printing sleeve is realized, in the using process, the heating mechanism can be closed and the refrigerator can be started due to the temperature rise of the friction heat transfer element, so that the water pumped by the water pump is cold water and enters the rotating shaft, the heat is rapidly transferred through the heat transfer element, the printing sleeve is at a proper temperature, and the function of cooling the printing sleeve is realized.

Preferably, the distance between one end of the pipeline extending into the rotating shaft and the inner wall of the rotating shaft is 20-30mm, so that water in the pipeline smoothly flows into the rotating shaft.

Preferably, the holding ring is close to one side of printing cover has seted up a plurality of draw-in groove, the printing cover is close to one side of holding ring is provided with the fixture block, and this fixture block joint is inboard at this draw-in groove, sets up like this and to prescribe a limit to the printing cover by the holding ring, prevents to take place to rotate between printing cover and the pivot, influences printing quality.

Preferably, fixed cover includes screw thread portion and extrusion portion, and this extrusion portion and this screw thread portion welded connection, this screw thread portion outside are hexagonal, and inside spiro union is in install the head outside, this extrusion portion cover is established the pivot outside, and support the printing is sheathe in, sets up like this and can realize heating mechanism's fixing through screw thread portion, extrudes the impression brush cover through extrusion portion, has realized printing cover's fixed.

Preferably, the heat transfer element comprises a heat transfer pipe and a plurality of heat transfer fins, the heat transfer fins are welded on the inner side of the heat transfer pipe, and the pipeline is arranged among the heat transfer fins, so that water in the rotating shaft can flow through the heat transfer fins, the contact area between the heat transfer element and the water is increased, and the heat transfer efficiency is higher.

Preferably, the water pipe connector comprises an inner ring, an outer ring and a plurality of connecting pieces which are welded between the inner ring and the outer ring and are distributed at equal angles, and water can be filled between the inner ring and the outer ring under the condition that the strength of the water pipe connector is guaranteed.

Preferably, heating mechanism includes heating cabinet, heating pipe, spiral pipe, the heating cabinet passes through the screw connection and is in water tank one side, the inside fixed mounting of heating cabinet has the heating pipe, the winding of the heating pipe outside has the spiral pipe, the spiral pipe both ends respectively with the inlet tube connect water piping connection, set up like this and can heat the inside water of spiral pipe through the heating pipe, and then flow into the inside water level hot water of inlet tube.

Preferably, the heating mechanism comprises a heating box, a straight-through pipe and a spiral heating pipe, the heating box is connected to one side of the water tank through screws, the straight-through pipe is fixedly mounted inside the heating box, two ends of the straight-through pipe are respectively connected with the water inlet pipe and the connecting water pipe, the spiral heating pipe is wound around the straight-through pipe, and therefore water inside the straight-through pipe can be heated through the spiral heating pipe, and water level hot water flowing into the water inlet pipe can flow into the water pipe.

Preferably, the outer side of the connecting rod is provided with an external thread, the external thread is the same as the thread on the outer side of the mounting head, and the outer side of the external thread is screwed with a threaded sleeve, so that the threaded sleeve can be screwed on the outer side of the mounting head, and the stability of connection between the first mounting mechanism and the printing mechanism is improved.

Preferably, the rotation direction of the connecting nut lock at the outer side of the rotating shaft is opposite to the rotation direction of the rotating shaft during printing, so that the connecting nut and the rotating shaft can be prevented from being connected and loosening.

The technical scheme provided by the invention can have the following beneficial effects:

1. according to the invention, the connecting nut can be rotated to separate the rotating shaft from the connecting nut, the inserted rod is pushed to extrude the spring, the inserted rod is separated from the slot, the fixing sleeve is rotated to separate the fixing sleeve from the mounting head, and then the printing sleeve can be dismounted, so that the functions of convenient replacement and cleaning of the printing sleeve are realized;

2. the water pump and the heating mechanism can be started before the water pump is used, water pumped by the water pump is heated by the heating mechanism and then sprayed into the rotating shaft, and heat is quickly transferred through the heat transfer element, so that the printing sleeve is at a proper temperature, and the function of heating the printing sleeve is realized;

3. when the temperature-reducing device is used, the heating mechanism is closed and the refrigerating machine is started due to the fact that the temperature of the friction heat transfer element rises, so that water pumped by the water pump is cold water and enters the rotating shaft, heat is rapidly transferred through the heat transfer element, the printing sleeve is at a proper temperature, and the function of reducing the temperature of the printing sleeve is achieved.

Additional features of the invention and advantages thereof will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a printing roll for a printing press for facilitating temperature regulation according to the present invention; 4

FIG. 2 is a schematic structural view of a first mounting mechanism of a printing roller for a printing press for facilitating temperature adjustment according to the present invention;

FIG. 3 is a cross-sectional view of the first mounting mechanism of FIG. 2 of a printing roller for a printing press to facilitate temperature regulation in accordance with the present invention;

FIG. 4 is a schematic diagram of a printing mechanism for a printing roller of a printing press for facilitating temperature adjustment according to the present invention;

FIG. 5 is a cross-sectional view of the printing mechanism of FIG. 4 with a print roller for a printing press that facilitates temperature adjustment in accordance with the present invention;

FIG. 6 is a schematic view of the assembly of a second mounting mechanism, a water circulation mechanism and a heating mechanism of a printing roller for a printing machine for facilitating temperature adjustment according to the present invention;

FIG. 7 is a cross-sectional view of the first embodiment of the assembly of the second mounting mechanism, the water circulation mechanism and the heating mechanism of FIG. 6 for a printing roller for a printing press that facilitates temperature regulation in accordance with the present invention;

fig. 8 is a sectional view of a second embodiment of the assembly of the second mounting mechanism, the water circulation mechanism and the heating mechanism of fig. 6 of a printing roller for a printing press for facilitating temperature adjustment according to the present invention.

The reference numerals are explained below:

1. a printing mechanism; 2. a first mounting mechanism; 3. a second mounting mechanism; 4. a water circulation mechanism; 5. a heating mechanism; 101. a rotating shaft; 102. a positioning ring; 103. printing the cover; 104. a mounting head; 105. fixing a sleeve; 106. a heat transfer member; 107. a pipeline; 1041. a slot; 1061. a heat transfer tube; 1062. heat transfer fins; 201. a bearing connection column; 202. a connecting rod; 203. a threaded sleeve; 204. a spring; 205. inserting a rod; 301. a bearing connecting sleeve; 302. a connecting nut; 303. a water pipe connector; 401. a water tank; 402. a refrigerator; 403. a drain pipe; 404. a water inlet pipe; 405. connecting a water pipe; 406. a water pump; 501. a heating box; 502. heating a tube; 503. a spiral tube; 51. a straight-through pipe; 52. a spiral heating pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-7, a printing roller for a printing machine, which is convenient for temperature adjustment, comprises a printing mechanism 1, a first mounting mechanism 2, a second mounting mechanism 3, a water circulation mechanism 4, and a heating mechanism 5, wherein the printing mechanism 1 comprises a rotating shaft 101, a positioning ring 102, a printing sleeve 103, a mounting head 104, a fixing sleeve 105, a heat transfer element 106, a pipe 107, a hollow structure with an open end inside the rotating shaft 101, the heat transfer element 106 tightly contacted with the inner wall of the rotating shaft 101 is connected inside the rotating shaft 101 through a screw, the pipe 107 is arranged inside the heat transfer element 106, one end of the pipe 107 extending into the rotating shaft 101 is not contacted with the inner wall of the rotating shaft 101, the mounting head 104 is integrally formed at the center of the other end of the rotating shaft 101, a slot 1041 with a regular cross section is formed at the center of one end of the mounting head 104 far away from the rotating shaft 101, the positioning ring 102, the printing sleeve 103, and the fixing sleeve 105 are sequentially arranged outside the rotating shaft 101, the first mounting mechanism 2 comprises a bearing connecting post 201, a fixing post, The connecting rod 202, the spring 204 and the inserted link 205 are integrally formed on one side of the bearing connecting column 201 close to the mounting head 104, a chute corresponding to the position and the shape of the slot 1041 is formed in the center of one side of the connecting rod 202 close to the mounting head 104, the inserted link 205 is connected to the inner side of the chute in a sliding manner, the spring 204 is fixedly connected to one side of the inserted link 205, one end of the spring 204 far away from the inserted link 205 is fixed inside the chute, the second mounting mechanism 3 comprises a bearing connecting sleeve 301, a connecting nut 302 and a water pipe connector 303, the connecting nut 302 is welded on one side of the bearing connecting sleeve 301 close to the rotating shaft 101 and is screwed outside the rotating shaft 101, the water pipe connector 303 is in interference fit with the inner side of one end of the bearing connecting sleeve 301 far away from the connecting nut 302, the water circulation mechanism 4 comprises a water tank 401, a refrigerator 402, a drain pipe 403, a water inlet pipe 404, a connecting water pipe 405 and a water pump 406, the refrigerator 402 is arranged inside the water tank 401, the top of the water tank 401 is communicated with one end of the water discharge pipe 403, one end of the water discharge pipe 403 far away from the water tank 401 is connected to the outer side of the water pipe connector 303 through a sealing bearing, one end of the water inlet pipe 404 is connected to the inner side of the water pipe connector 303 through a sealing bearing, one end of the water inlet pipe 404 far away from the water pipe connector 303 passes through the water discharge pipe 403 and is connected to the top of the heating mechanism 5, the bottom of the heating mechanism 5 is connected with a connecting water pipe 405, one end of the connecting water pipe 405 far away from the heating mechanism 5 is connected to the water outlet end of the water pump 406 through a hose clamp, the water pump 406 is connected to one side of the water tank 401 through a bolt, the rotating shaft 101 can be separated from the connecting nut 302 through rotating the connecting nut 302, the inserting rod 205 is pushed and extrudes the spring 204, the inserting rod 205 is separated from the slot 1041, the fixing sleeve 105 is rotated, the fixing sleeve 105 is separated from the mounting head 104, and the printing sleeve 103 can be further disassembled, thereby realizing the function of convenient replacement and cleaning of the printing sleeve 103, before the use, the water pump 406 and the heating mechanism 5 are started, water pumped by the water pump 406 is heated by the heating mechanism 5 and then sprayed into the rotating shaft 101, heat is rapidly transferred through the heat transfer element 106, so that the printing sleeve 103 is at a proper temperature, the function of heating the printing sleeve 103 is realized, in the use process, due to the temperature rise of the friction heat transfer element 106, the heating mechanism 5 is closed, the refrigerator 402 is started, water pumped by the water pump 406 is cold water and enters the rotating shaft 101, heat is rapidly transferred through the heat transfer element 106, so that the printing sleeve 103 is at a proper temperature, the function of cooling the printing sleeve 103 is realized, the distance between one end of the pipeline 107 extending into the rotating shaft 101 and the inner wall of the rotating shaft 101 is 20mm, the arrangement is characterized in that the water in the pipeline 107 smoothly flows into the rotating shaft 101, one side of the positioning ring 102 close to the printing sleeve 103 is provided with a plurality of clamping grooves, the side of the printing sleeve 103 close to the positioning ring 102 is provided with a fixture block which is clamped at the inner side of the fixture block, the positioning ring 102 is arranged to limit the printing sleeve 103, the printing sleeve 103 and the rotating shaft 101 are prevented from rotating, the printing quality is prevented from being influenced, the fixing sleeve 105 comprises a threaded part and an extrusion part, the extrusion part is welded with the threaded part, the outer side of the threaded part is a hexagonal surface, the inner part of the threaded part is screwed at the outer side of the mounting head 104, the extrusion part is sleeved at the outer side of the rotating shaft 101 and is abutted against the printing sleeve 103, the fixing of the heating mechanism 5 can be realized through the threaded part, the printing sleeve 103 is extruded and pressed by the extrusion part, the fixing of the printing sleeve 103 is realized, the heat transfer part 106 comprises a heat transfer pipe 1061 and heat transfer fins 1062, a plurality of heat transfer fins 1062 are welded at the inner side of the heat transfer pipe 1061, a pipeline 107 is arranged between the heat transfer fins 1062, the water in the rotating shaft 101 can flow through the arrangement, the contact area of the heat transfer element 106 and water is increased, so that the heat transfer efficiency is higher, the water pipe connector 303 comprises an inner ring, an outer ring and a plurality of connecting pieces which are welded between the inner ring and the outer ring and are distributed at equal angles, under the condition that the strength of the water pipe connector 303 is ensured, water can be communicated between the inner ring and the outer ring, the heating mechanism 5 comprises a heating box 501, a heating pipe 502 and a spiral pipe 503, the heating box 501 is connected to one side of the water tank 401 through screws, the heating pipe 502 is fixedly installed in the heating box 501, the spiral pipe 503 is wound on the outer side of the heating pipe 502, two ends of the spiral pipe 503 are respectively connected with the water inlet pipe 404 and the connecting water pipe 405, the water in the spiral pipe 503 can be heated through the heating pipe 502, water level hot water in the water inlet pipe 404 flows into, the outer side of the connecting rod 202 is provided with an external thread, and the external thread is the same as the thread on the outer side of the mounting head 104, the threaded sleeve 203 is screwed on the outer side of the external thread, so that the threaded sleeve 203 can be screwed on the outer side of the mounting head 104, the connection stability between the first mounting mechanism 2 and the printing mechanism 1 is improved, the rotation direction of the connecting nut 302 locked on the outer side of the rotating shaft 101 is opposite to the rotation direction of the connecting nut 302 when the rotating shaft 101 is printed, and the looseness of the connection between the connecting nut 302 and the rotating shaft 101 can be prevented.

In the structure, when the printing sleeve 103 needs to be cleaned or replaced, the rotating shaft 101 can be separated from the connecting nut 302 by rotating the connecting nut 302, the inserting rod 205 is pushed, the inserting rod 205 extrudes the spring 204, the inserting rod 205 is separated from the slot 1041, the fixing sleeve 105 is rotated, the fixing sleeve 105 is separated from the mounting head 104, and then the printing sleeve 103 can be disassembled, so that the function of conveniently replacing and cleaning the printing sleeve 103 is realized, before the printing sleeve is used, the water pump 406 is started and the heating pipe 502 is electrified, water pumped by the water pump 406 enters the spiral pipe 503 and is heated by heat generated by electrifying the heating pipe 502 and then enters the connecting rod 202, and finally the water is sprayed into the rotating shaft 101, the heat is rapidly transferred by the heat transfer member 106, so that the printing sleeve 103 is at a proper temperature, the function of heating the printing sleeve 103 is realized, and the temperature of the friction heat transfer member 106 can be increased in the using process, the heating mechanism 5 is turned off, the refrigerating machine 402 is started, so that the water pumped by the water pump 406 is cold water and enters the rotating shaft 101, the heat is rapidly transferred through the heat transfer element 106, the printing sleeve 103 is at a proper temperature, and the function of cooling the printing sleeve 103 is realized.

Example 2

As shown in fig. 8, embodiment 2 differs from embodiment 1 in that: the heating mechanism 5 comprises a heating box 501, a straight-through pipe 51 and a spiral heating pipe 52, the heating box 501 is connected to one side of the water tank 401 through screws, the straight-through pipe 51 is fixedly installed inside the heating box 501, two ends of the straight-through pipe 51 are respectively connected with a water inlet pipe 404 and a connecting water pipe 405, the spiral heating pipe 52 is wound on the periphery of the straight-through pipe 51, and therefore water inside the straight-through pipe 51 can be heated through the spiral heating pipe 52 and then flows into water level hot water inside the water inlet pipe 404.

In the above structure, when the printing sleeve 103 needs to be cleaned or replaced, the connecting nut 302 can be rotated to separate the rotating shaft 101 from the connecting nut 302, the inserting rod 205 is pushed, the inserting rod 205 extrudes the spring 204, the inserting rod 205 is separated from the slot 1041, the fixing sleeve 105 is rotated to separate the fixing sleeve 105 from the mounting head 104, and then the printing sleeve 103 can be disassembled, so that the function of conveniently replacing and cleaning the printing sleeve 103 is realized, before the use, the water pump 406 is started and the spiral heating pipe 52 is electrified, water pumped by the water pump 406 enters the straight-through pipe 51 and is heated by heat generated by the electrification of the spiral heating pipe 52 and then enters the connecting rod 202, and finally the water is sprayed into the rotating shaft 101, the heat is rapidly transferred by the heat transfer member 106, so that the printing sleeve 103 is at a proper temperature, the function of heating the printing sleeve 103 is realized, and the temperature of the friction heat transfer member 106 can be increased in the use process, the heating mechanism 5 is turned off, the refrigerating machine 402 is started, so that the water pumped by the water pump 406 is cold water and enters the rotating shaft 101, the heat is rapidly transferred through the heat transfer element 106, the printing sleeve 103 is at a proper temperature, and the function of cooling the printing sleeve 103 is realized.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A printing roller for a printing machine convenient for temperature adjustment is characterized in that: the printing mechanism comprises a rotating shaft, a positioning ring, a printing sleeve, an installing head, a fixing sleeve, a heat transfer element and a pipeline, wherein the rotating shaft is hollow and is provided with an opening at one end, the rotating shaft is internally connected with the heat transfer element which is tightly contacted with the inner wall of the rotating shaft through a screw, the pipeline is arranged on the inner side of the heat transfer element, one end of the pipeline extending into the rotating shaft is not contacted with the inner wall of the rotating shaft, the installing head is integrally formed in the center of the other end of the rotating shaft, a slot with a regular-edged cross section is formed in the center of one end of the installing head far away from the rotating shaft, the positioning ring, the printing sleeve and the fixing sleeve are sequentially arranged on the outer side of the rotating shaft, the first mounting mechanism comprises a bearing connecting column, a connecting rod, a spring and an inserting rod, the connecting rod is integrally formed on one side of the bearing connecting column close to the installing head, and a chute corresponding to the position and shape of the slot is formed in the center of one side of the connecting rod close to the installing head, the inner side of the chute is connected with an inserted rod in a sliding way, one side of the inserted rod is fixedly connected with a spring, one end of the spring, which is far away from the inserted rod, is fixed inside the chute, the second mounting mechanism comprises a bearing connecting sleeve, a connecting nut and a water pipe connector, one side of the bearing connecting sleeve, which is close to the rotating shaft, is welded with the connecting nut, the connecting nut is screwed outside the rotating shaft, the inner side of one end of the bearing connecting sleeve, which is far away from the connecting nut, is in interference fit with the water pipe connector, the water circulation mechanism comprises a water tank, a refrigerator, a drain pipe, a water inlet pipe, a connecting water pipe and a water pump, the refrigerator is arranged inside the water tank, the top of the water tank is communicated with one end of the drain pipe, which is far away from the water tank, is connected outside the water pipe connector through a sealing bearing, one end of the water inlet pipe, which is far away from the water pipe connector, penetrates through the drain pipe and is connected to the top of the heating mechanism, the bottom of the heating mechanism is connected with a connecting water pipe, one end of the connecting water pipe, which is far away from the heating mechanism, is connected with the water outlet end of the water pump through a hose clamp, and the water pump is connected with one side of the water tank through a bolt.

2. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the distance between one end of the pipeline extending into the rotating shaft and the inner wall of the rotating shaft is 20-30 mm.

3. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the printing device is characterized in that one side of the positioning ring, which is close to the printing sleeve, is provided with a plurality of clamping grooves, one side of the printing sleeve, which is close to the positioning ring, is provided with a clamping block, and the clamping block is clamped on the inner side of the clamping grooves.

4. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the fixed cover comprises a threaded portion and an extrusion portion, the extrusion portion is connected with the threaded portion in a welded mode, the outer side of the threaded portion is a hexagonal surface, the outer side of the mounting head is in threaded connection with the outer side of the threaded portion, the extrusion portion is sleeved on the outer side of the rotating shaft and abuts against the printing cover.

5. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the heat transfer element comprises a heat transfer pipe and heat transfer fins, wherein a plurality of heat transfer fins are welded on the inner side of the heat transfer pipe, and the pipelines are arranged among the heat transfer fins.

6. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the water pipe connector comprises an inner ring, an outer ring and a plurality of connecting pieces which are welded between the inner ring and the outer ring and are distributed at equal angles.

7. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: heating mechanism includes heating cabinet, heating pipe, spiral pipe, the heating cabinet passes through the screw connection and is in water tank one side, the inside fixed mounting of heating cabinet has the heating pipe, the winding of the heating pipe outside has the spiral pipe, the spiral pipe both ends respectively with the inlet tube connect water piping connection.

8. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the heating mechanism comprises a heating box, a straight-through pipe and a spiral heating pipe, the heating box is connected to one side of the water tank through screws, the straight-through pipe is fixedly mounted inside the heating box, two ends of the straight-through pipe are respectively connected with the water inlet pipe and the connecting water pipe, and the spiral heating pipe is wound around the straight-through pipe.

9. A printing roller for a printing press facilitating temperature regulation according to claim 1, wherein: the outer side of the connecting rod is provided with an external thread, the external thread is the same as the thread on the outer side of the mounting head, and the outer side of the external thread is screwed with a thread sleeve.

10. A printing roller for a printing press facilitating temperature regulation according to claim 9, wherein: the rotation direction of the connecting nut locked at the outer side of the rotating shaft is opposite to the rotation direction of the rotating shaft during printing.