Rubber roller structure for printing machine

Abstract

The utility model relates to a rubber roller structure for a printing machine, which comprises a roller core made of metal materials, an airflow channel is arranged in the roller core along the length direction of the roller core, a plurality of metal radiating fins which are annularly distributed are fixedly connected onto the outer side wall of the roller core, and a rubber coating layer is connected onto the outer side of the roller core through a connecting structure. Air pipes are fixedly connected to the two ends of the roller core, one ends of the metal cooling fins penetrate through the side wall of the roller core and extend into the airflow channel, the other ends of the metal cooling fins are inserted into the rubber coating layer, and when the rubber coating layer generates heat due to extrusion and friction in the using process, the heat can be conducted to the metal cooling fins, so that the heat dissipation effect is improved. And heat on the metal heat dissipation fins is brought out through flowing air in the airflow channel, so that the purpose of continuously dissipating heat of the rubber coating layer is achieved, and the problems that the temperature of the rubber coating layer is too high, the aging speed of the rubber roller is increased, the service life of the rubber roller is affected, and transfer and uniformity of printing ink are affected are solved as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rubber roll, and particularly relates to a rubber roll structure for printing machine. BACKGROUND

[0002] Rubber roll is divided into hard stick and soft roll, is used for printing machinery, is used as impression, ink adjusting, ink transmission, rubber roll has moderate hardness and elasticity, high oil resistance, washing solvent resistance, wear resistance and shape stability, soft roll is generally made of SBR, CR and PU, and the surface of hard stick is originally copper material and is replaced by polyester resin later.

[0003] Rubber roll generates a large amount of heat due to friction and extrusion for a long time, which leads to temperature rise of rubber roll, high temperature not only increases the aging speed of rubber roll, influences the service life of rubber roll, and also influences the transmission and uniformity of ink. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rubber roll structure for printing machine, which has the advantages of simple structure, reasonable design and the like.

[0005] The utility model discloses a rubber roll structure for printing machine, which has the advantages of simple structure, reasonable design and the like.

[0006] A rubber roll structure for printing machine, which comprises a roll core made of metal material, a airflow channel is formed in the roll core along the length direction of the roll core, a plurality of annularly distributed metal heat dissipation fins are fixedly connected to the outer sidewall of the roll core, a rubber coating layer is connected to the outer side of the roll core through a connecting structure, air pipes are fixedly connected to both ends of the roll core, one end of the air pipe close to the roll core is in communication with the airflow channel, air holes are formed in the sidewall of the middle section of the air pipe, a gas collecting cover is sleeved on one of the air pipes and is rotatably connected to the air pipe, a communication pipe is fixedly connected to the outer wall of the gas collecting cover and is in communication with the inside of the gas collecting cover, and a wind blocking structure is installed on the other air pipe.

[0007] As a further optimization scheme of the utility model, the metal heat dissipation fins are in rectangular plate structure, the length of the metal heat dissipation fins is less than the length of the roll core, and one end of the metal heat dissipation fins penetrates through the outer sidewall of the roll core and extends into the airflow channel.

[0008] As a further optimization scheme of the utility model, the connecting structure comprises an adhesive layer sleeved on the middle section of the roll core, and one end of the metal heat dissipation fins located on the outer side of the roll core penetrates through the adhesive layer and extends into the rubber coating layer.

[0009] As a further optimization scheme of the utility model, the gas collecting cover is in tubular structure, sealing rings are arranged at the connection positions of the two ends of the gas collecting cover and the air pipe, the inner ring of the sealing ring is sleeved on the air pipe and can rotate around the air pipe, and the outer ring of the sealing ring is fixed to the inner wall of the end part of the gas collecting cover.

[0010] As a further optimization scheme of the utility model, the free end of the communication pipe is fixedly connected with a joint, and an external thread for connecting with an external gas supply pipeline is formed on the outer surface of the joint.

[0011] As a further optimization scheme of the utility model, the wind shielding structure is that a wind shield is fixedly sleeved on the end of the air pipe away from the roller core, the wind shield is in a horn shape structure, and a gap is reserved between the inner side wall of the wind shield and the outer surface of the air pipe.

[0012] The utility model discloses the beneficial effect lies in: because the roller core outer wall is provided with a plurality of annular distribution's metal heat dissipation fin, metal heat dissipation fin one end penetrates the roller core lateral wall and extends to the airflow channel, and the other end of metal heat dissipation fin is inserted into the rubber coating layer, when the rubber coating layer generates heat in the use process due to extrusion and friction, heat can be conducted to the metal heat dissipation fin, and the flowing air in the airflow channel carries out the heat on the metal heat dissipation fin, reach the purpose of the sustained heat dissipation of rubber coating layer, try to avoid the rubber coating layer temperature too high, not only will increase the rubber roller aging speed, influence the service life of rubber roller, and will influence the transmission and uniformity of ink. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the connection structure schematic diagram of the utility model metal heat dissipation fin and roller core;

[0015] Figure 3 It is the sectional structure schematic diagram of the utility model Figure 2 .

[0016] Figure 4 It is the local detail enlarged view of A in the utility model Figure 3 .

[0017] In the drawing: 1, roller core;2, airflow channel;3, metal heat dissipation fin;4, adhesive layer;5, rubber coating layer;6, air pipe;7, air hole;8, support shaft;9, sealing ring;10, gas collecting cover;11, communication pipe;12, joint;13, wind shield. DETAILED DESCRIPTION

[0018] The following detailed description of the application in conjunction with the drawings, it is necessary to point out here that the following detailed description only for the further description of the application, can not be understood as the limitation of the scope of the application, the skilled person in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0019] EMBODIMENT

[0020] As Figure 1 -Figure 4 The utility model provides a printing machine glue roll structure, including the roll core 1 made of metal material, the roll core 1 is seted up with the air flow channel 2 along the length direction of roll core 1 in, can make air flow along the air flow channel 2 in the roll core 1,

[0021] The outer side wall of the roll core 1 is fixedly connected with a plurality of annularly distributed metal heat dissipation fins 3, the metal heat dissipation fins 3 are in the form of rectangular plates, the length of the metal heat dissipation fins 3 is less than the length of the roll core 1,

[0022] The outer side of the roll core 1 is connected with a rubber coating layer 5 through a connecting structure, the connecting structure includes an adhesive layer 4 sleeved on the middle segment of the roll core 1, one end of the metal heat dissipation fins 3 located on the outer side of the roll core 1 penetrates through the adhesive layer 4 and extends into the rubber coating layer 5, the other end of the metal heat dissipation fins 3 penetrates through the outer side wall of the roll core 1 and extends into the air flow channel 2, when heat is generated in the rubber coating layer 5 due to extrusion and friction during use, the heat can be conducted to the metal heat dissipation fins 3, at this time, the flowing air in the air flow channel 2 in the roll core 1 is used to take out the heat on the metal heat dissipation fins 3, so as to dissipate heat for the rubber coating layer 5, and the temperature of the rubber coating layer 5 after long-term use is prevented from being too high, which not only increases the aging speed of the glue roll and affects the service life of the glue roll, but also affects the transmission and uniformity of the ink;

[0023] Both ends of the roll core 1 are fixedly connected with air pipes 6, one end of the air pipes 6 close to the roll core 1 is in communication with the air flow channel 2, the other end of the air pipes 6 away from the roll core 1 is fixedly installed with a support shaft 8, and a gas hole 7 is formed in the side wall of the middle segment of the air pipes 6, so that air can enter the air flow channel 2 through the gas hole 7 formed in one of the air pipes 6 and be discharged from the gas hole 7 formed in the other air pipe 6;

[0024] One of the air pipes 6 is installed with a gas collecting hood 10, the gas collecting hood 10 is in the form of a tube, and sealing rings 9 are arranged at the connection positions of the two ends of the gas collecting hood 10 and the air pipe 6, the inner ring of the sealing ring 9 is sleeved on the air pipe 6 and can rotate around the air pipe 6, and the outer ring of the sealing ring 9 is fixedly connected with the inner wall of the end portion of the gas collecting hood 10, so that the gas collecting hood 10 can rotate relative to the air pipe 6;

[0025] The outer wall of the gas collecting hood 10 is fixedly connected with a communication pipe 11 in communication with the inside of the gas collecting hood 10, a connector 12 is fixedly connected to the free end of the communication pipe 11, and external threads are formed on the outer surface of the connector 12 for connecting with an external air supply pipeline, so that the user can screw and fix the external air supply pipeline with the communication pipe 11 through the connector 12, the flowing air is conveyed into the gas collecting hood 10 through the communication pipe 11, and then is conveyed into the air flow channel 2 through the cooperation of the gas hole 7 and the air pipe 6, so that the cold air moving at high speed in the air flow channel 2 can take out the heat of the metal heat dissipation fins 3, so as to continuously dissipate heat for the rubber coating layer 5;

[0026] Another air pipe 6 is provided with a windproof structure, the windproof structure is that a windproof cover 13 is fixedly sleeved on the end of the air pipe 6 away from the roller core 1, the windproof cover 13 is a horn-shaped structure, a gap is reserved between the inner side wall of the windproof cover 13 and the outer surface of the air pipe 6, the windproof structure is arranged for guiding the air discharged by the air hole 7 of the air pipe 6, and the influence of the flowing air on printing is avoided as much as possible.

[0027] It should be noted that the rubber roller structure of the printing machine is used, first, the external air supply pipeline is screwed and fixed with the communication pipe 11 through the joint 12, the high-speed flowing cold air is delivered into the airflow passage 2 in the roller core 1 through the air pipe 6 and the air hole 7, the roller core 1 is provided with a plurality of annular distributed metal heat dissipation fins 3 on the outer wall, one end of the metal heat dissipation fin 3 extends into the airflow passage 2 through the side wall of the roller core 1, the other end of the metal heat dissipation fin 3 is inserted into the rubber coating layer 5, when the rubber coating layer 5 generates heat due to extrusion and friction in the use process, the heat can be conducted to the metal heat dissipation fin 3, the heat on the metal heat dissipation fin 3 is taken out by the flowing air in the airflow passage 2, the rubber coating layer 5 is continuously cooled, and the temperature of the rubber coating layer 5 is prevented from being too high after long time use, so that the aging speed of the rubber roller is increased, the service life of the rubber roller is affected, and the problems of ink transmission and uniformity are affected.

[0028] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A structure of a rubber roller for a printing machine, comprising a roller core (1) made of a metal material, characterized in that: The air flow channel (2) is arranged in the roller core (1) along the length direction of the roller core (1), a plurality of annularly distributed metal heat dissipation fins (3) are fixedly connected to the outer side wall of the roller core (1), the outer side of the roller core (1) is connected with a rubber coating layer (5) through a connecting structure, the two ends of the roller core (1) are fixedly connected with air pipes (6), one end of the air pipe (6) close to the roller core (1) is in communication with the air flow channel (2), air holes (7) are arranged on the side wall of the middle section of the air pipe (6), one of the air pipes (6) is sleeved with a gas collecting cover (10) which is rotatably connected with the air pipe (6), a communication pipe (11) which is in communication with the inside of the gas collecting cover (10) is fixedly connected to the outer wall of the gas collecting cover (10), and the other air pipe (6) is provided with a wind blocking structure.

2. The rubber roll structure for a printing press according to claim 1, wherein: The metal heat dissipation fin (3) is in a rectangular plate structure, the length of the metal heat dissipation fin (3) is less than the length of the roller core (1), and one end of the metal heat dissipation fin (3) penetrates through the outer side wall of the roller core (1) and extends into the air flow channel (2).

3. The rubber roller structure for a printing machine according to claim 2, characterized in that: The connecting structure comprises an adhesive layer (4) sleeved on the middle section of the roller core (1), and one end of the metal heat dissipation fin (3) located on the outer side of the roller core (1) penetrates through the adhesive layer (4) and extends into the rubber coating layer (5).

4. The rubber roll structure for a printing press according to claim 1, wherein: The gas collecting cover (10) is in a tubular structure, sealing rings (9) are arranged at the connection between the two ends of the gas collecting cover (10) and the air pipe (6), the inner ring of the sealing ring (9) is sleeved on the air pipe (6) and can rotate around the air pipe (6), and the outer ring of the sealing ring (9) is fixedly connected to the inner wall of the end portion of the gas collecting cover (10).

5. The rubber roller structure for a printing machine according to claim 4, characterized in that: A connector (12) is fixedly connected to the free end of the communication pipe (11), and external threads are arranged on the outer surface of the connector (12) for connecting with an external gas supply pipeline.

6. The rubber roller structure for a printing machine according to claim 1, wherein: The wind blocking structure is that a wind blocking cover (13) is fixedly sleeved on the end of the air pipe (6) away from the roller core (1), the wind blocking cover (13) is in a horn-shaped structure, and a gap is arranged between the inner side wall of the wind blocking cover (13) and the outer surface of the air pipe (6).

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