High-temperature-resistant polyurethane rubber roller

Abstract

The utility model belongs to the technical field of rubber covered rollers, and particularly relates to a high-temperature-resistant polyurethane rubber covered roller which comprises a roller core, and roller shafts are integrally formed at the two ends of the roller core. The rubber sleeve is sleeved outside the roller core; the two end fixing discs are symmetrically arranged on the roller shaft in a sleeving mode, abut against the end face of the roller core and limit the rubber sleeve; and the outer protection layer is integrally formed outside the rubber sleeve.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber rollers, and particularly relates to a high-temperature resistant polyurethane rubber roller. Background Art

[0002] A rubber roller is a roller-shaped product with a core made of metal or other materials and a flexible material coated on the outside. It is an important component of a printing press. The rubber roller has appropriate hardness and elasticity, high oil resistance, resistance to washing solvents, wear resistance, and shape stability.

[0003] However, when the rubber roller works, friction is generated, releasing a large amount of heat, resulting in a very rapid increase in the temperature inside the rubber roller. If the temperature is too high, it is easy to reduce the service life of the rubber roller. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a polyurethane rubber roller with a simple structure, high temperature resistance, and long service life for the above-mentioned existing technical problems.

[0005] In view of this, the utility model provides a high-temperature resistant polyurethane rubber roller, including:

[0006] A roller core, with roller shafts integrally formed at both ends of the roller core;

[0007] A rubber sleeve, which is sleeved outside the roller core;

[0008] End fixing plates, two end fixing plates are symmetrically sleeved on the roller shafts and abut against the end faces of the roller core to limit the rubber sleeve;

[0009] An outer protective layer, which is integrally formed outside the rubber sleeve.

[0010] In the above technical solution, further, it further includes:

[0011] Outer cage, several outer cages are integrally formed on the outer wall of the roller core at equal intervals in the circumferential direction;

[0012] Among them, the outer cage extends from one end face of the roller core to the other end face, and there is a gap formed between adjacent outer cages, and the rubber sleeve is sleeved outside the outer cage.

[0013] In the above technical solution, further, the outer cage includes:

[0014] An outer support part, which is in contact with the rubber sleeve;

[0015] An inner reinforcement part, which is connected to the roller core and supports the outer support part;

[0016] Among them, a heat dissipation gap is formed between the outer support part and the inner reinforcement part.

[0017] In the above technical solution, further, the outer cage further includes:

[0018] External anti-offset bars are provided on the outer side of each outer support part.

[0019] In the above technical solution, further, the outer support part includes:

[0020] An outer arc surface support wall that fits against the inner wall of the rubber sleeve;

[0021] An inner gentle slope connecting wall located on the side connecting the inner reinforcement part;

[0022] Among them, the inner gentle slope connecting wall is inclined, so that the thickness of the outer support part shows an increasing trend from one side to the other side; and the external anti-offset bars are integrally formed on the outer side of the outer arc surface support wall, and an anti-offset groove matching the external anti-offset bars is formed on the inner wall of the rubber sleeve.

[0023] In the above technical solution, further, the outer cage further includes:

[0024] Heat dissipation holes, and a plurality of heat dissipation holes are uniformly distributed along the axial direction on the outer support part and penetrate the outer support part.

[0025] In the above technical solution, further, the inner reinforcement part is inclined and connected to the outer support part to form a shape like '>'.

[0026] In the above technical solution, further, it further includes:

[0027] Side heat dissipation grooves, and a plurality of side heat dissipation grooves are evenly arranged on the end fixing disc in a circumferential manner, and penetrate the end fixing disc and communicate with the heat dissipation gap.

[0028] In the above technical solution, further, the outer protective layer is made of butyl rubber.

[0029] In the above technical solution, further, it further includes:

[0030] Heat conduction bars, and a plurality of heat conduction bars are evenly distributed on the rubber sleeve and extend from the inner wall of the rubber sleeve to the outer wall.

[0031] The beneficial effects of the present utility model are:

[0032] 1. The setting of the outer protective layer can improve the overall heat resistance of the rubber roller, thereby ensuring the heat resistance effect during the use of the rubber roller;

[0033] 2. The setting of the outer cage can improve the overall structural strength of the rubber roller, thereby increasing the overall service life of the rubber roller. Description of the Drawings

[0034] Figure 1 It is a structural schematic diagram of the present utility model;

[0035] Figure 2It is a schematic cross-sectional view of the present utility model;

[0036] Figure 3 It is a schematic structural view of the connection between the roll core and the outer cage in the present utility model;

[0037] The markings in the figure are indicated as: 1 - roll core, 2 - roll shaft, 3 - rubber sleeve, 4 - end fixing plate, 5 - outer protective layer, 6 - outer cage, 6a - inner reinforcement part, 6b - outer anti-offset rib, 6c - outer arc surface support wall, 6d - inner gentle slope connection wall, 6e - heat dissipation hole, 7 - heat dissipation gap, 8 - side heat dissipation groove, 9 - heat conduction rib. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0039] Embodiment 1:

[0040] This embodiment provides a high-temperature resistant polyurethane rubber roll, including:

[0041] A roll core 1, with roll shafts 2 integrally formed at both ends of the roll core 1;

[0042] A rubber sleeve 3, with the rubber sleeve 3 sleeved outside the roll core 1;

[0043] End fixing plates 4, with two end fixing plates 4 symmetrically sleeved on the roll shafts 2 and abutted against the end faces of the roll core 1 to limit the rubber sleeve 3;

[0044] An outer protective layer 5, with the outer protective layer 5 integrally formed outside the rubber sleeve 3.

[0045] In this embodiment, the rubber sleeve 3 is made of polyurethane material, and the thickness of the outer protective layer 5 is greater than that of the rubber sleeve 3. The outer protective layer 5 can improve the structural stability outside the rubber roll, thereby increasing the service life of the rubber roll; and the end fixing pieces are fixedly connected to the roll shafts 2 on both sides of the roll core 1, and the rubber sleeve 3 is limited by the end fixing plates 4, thereby preventing the rubber sleeve 3 from shifting, and thus ensuring the strength of the installation structure of the rubber sleeve 3 and the outer protective layer 5; and the outer wall of the end fixing plate 4 extends to the outer protective layer 5 and is slightly lower than the outer wall of the outer protective layer 5, thereby ensuring both the fixing strength of the outer protective layer 5 and not affecting the operation of the outer protective layer 5.

[0046] Embodiment 2:

[0047] This embodiment provides a high-temperature resistant polyurethane rubber roll, which, in addition to including the technical solutions of the above embodiment, also has the following technical features.

[0048] It further includes:

[0049] The outer cage 6, several outer cages 6 are integrally formed on the outer wall of the roller core 1 evenly in a circumferential direction;

[0050] Among them, the outer cage 6 extends from one end face of the roller core 1 to the other side, and there is a gap formed between adjacent outer cages 6, and the rubber sleeve 3 is sleeved outside the outer cage 6.

[0051] In this embodiment, the setting of the outer cage 6 enables the roller core 1 to better support the rubber sleeve 3, and there is a gap formed between adjacent outer cages 6, so as to reduce the overall mass of the rubber roller.

[0052] Embodiment 3:

[0053] This embodiment provides a high-temperature resistant polyurethane rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0054] The outer cage 6 includes:

[0055] The outer support part, the outer support part is in contact with the rubber sleeve 3;

[0056] The inner reinforcement part 6a, the inner reinforcement part 6a is connected to the roller core 1 and supports the outer support part;

[0057] Among them, a heat dissipation gap 7 is formed between the outer support part and the inner reinforcement part 6a.

[0058] In this embodiment, the setting of the outer support part enables the outer cage 6 to better support the rubber sleeve 3; while the inner reinforcement part 6a can ensure the connection temperature between the outer cage 6 and the roller core 1, and there is a gap formed between adjacent outer cages 6, so as to take out heat from the inside of the rubber sleeve 3 and the inner side of the outer protective layer 5, so as to ensure the overall heat dissipation and heat resistance effects of the rubber roller through the two-way heat dissipation effect, thereby improving the overall service life of the rubber roller.

[0059] Embodiment 4:

[0060] This embodiment provides a high-temperature resistant polyurethane rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0061] The outer cage 6 further includes:

[0062] The outer anti-deviation rib 6b, the outer anti-deviation rib 6b is arranged on the outer side of each outer support part.

[0063] In this embodiment, the rubber sleeve 3 is detachably sleeved on the outside of the outer cage 6. The outer anti-deviation rib 6b can enhance the connection strength and stability between the rubber sleeve 3 and the outer cage 6, thereby preventing the rubber sleeve 3 from rotating; and the detachable setting of the rubber sleeve 3 enables replacement when the rubber sleeve 3 and the outer protective layer 5 are damaged, without replacing the entire rubber roller, thus reducing the maintenance cost.

[0064] Embodiment 5:

[0065] This embodiment provides a high-temperature resistant polyurethane rubber roller, which, in addition to including the technical solutions of the above embodiments, further has the following technical features.

[0066] The outer support portion includes:

[0067] The outer arc surface support wall 6c, and the outer arc surface support wall 6c is in contact with the inner wall of the rubber sleeve 3;

[0068] The inner gentle slope connecting wall 6d, and the inner gentle slope connecting wall 6d is located on one side of the connecting inner reinforcement portion 6a;

[0069] Wherein the inner gentle slope connecting wall 6d is inclined, such that the thickness of the outer support portion shows a trend of increasing from one side to the other side; and the outer anti-deviation rib 6b is integrally formed on the outside of the outer arc surface support wall 6c and an anti-deviation groove matching with the outer anti-deviation rib 6b is formed on the inner wall of the rubber sleeve 3.

[0070] In this embodiment, the outer arc surface support wall 6c enables the outer support portion to better support the rubber sleeve 3, while the inner gentle slope connecting wall 6d is used to connect the inner reinforcement portion 6a; and the inner gentle slope connecting wall 6d is inclined, such that the thickness of the outer support portion shows a trend of increasing from one side to the other side, thereby reducing the mass brought by it while ensuring the overall structural strength of the outer cage 6.

[0071] Embodiment 6:

[0072] This embodiment provides a high-temperature resistant polyurethane rubber roller, which, in addition to including the technical solutions of the above embodiments, further has the following technical features.

[0073] The outer cage 6 further includes:

[0074] Heat dissipation holes 6e, and a plurality of heat dissipation holes 6e are uniformly distributed along the axial direction on the outer support portion and penetrate through the outer support portion.

[0075] In this embodiment, the setting of the heat dissipation holes 6e can better dissipate the heat generated by the rubber sleeve 3.

[0076] Embodiment 7:

[0077] This embodiment provides a high-temperature resistant polyurethane rubber roller, which, in addition to including the technical solutions of the above embodiments, further has the following technical features.

[0078] The inner reinforcement part 6a is inclined and connected to the outer support part to form a shape like '>'.

[0079] In this embodiment, the inner reinforcement part 6a is connected to the outer support part to form a shape like '>', and since the outer cage 6 is integrally formed with the roller core 1 and made of a metal material, the structural strength of the outer cage 6 itself can be further improved, and the outer cage 6 itself has a certain compressive effect, thereby reducing the overall quality of the rubber roller while ensuring the structural strength and compressive capacity of the rubber roller.

[0080] Embodiment 8:

[0081] This embodiment provides a high-temperature resistant polyurethane rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0082] It further includes:

[0083] Side heat dissipation grooves 8, several side heat dissipation grooves 8 are evenly arranged on the end fixing disk 4 in a circumferential manner, and penetrate through the end fixing disk 4 and communicate with the heat dissipation gap 7.

[0084] In this embodiment, the arrangement of the side heat dissipation grooves 8 enables the heat in the heat dissipation gap 7 to be better discharged from the rubber roller, thereby achieving a good heat dissipation effect.

[0085] Embodiment 9:

[0086] This embodiment provides a high-temperature resistant polyurethane rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0087] The outer protective layer 5 is made of butyl rubber.

[0088] In this embodiment, the outer protective layer 5 made of butyl rubber material can better ensure the heat resistance performance of the outer part of the rubber roller, thereby ensuring the service life of the rubber roller.

[0089] Embodiment 10:

[0090] This embodiment provides a high-temperature resistant polyurethane rubber roller. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0091] It further includes:

[0092] Thermal conduction ribs 9, several thermal conduction ribs 9 are evenly distributed on the rubber sleeve 3 and extend from the inner wall to the outer wall of the rubber sleeve 3.

[0093] In this embodiment, the thermal conduction ribs 9 are made of a metal or non-metal material with good thermal conductivity. Through the arrangement of the thermal conduction ribs 9, the heat can be better transferred to the direction where the outer cage 6 is located, and then dissipated from the rubber roller through the heat dissipation gap 7, the heat dissipation holes 6e and the side heat dissipation grooves 8.

[0094] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A high-temperature resistant polyurethane rubber roller, characterized in that, Comprising: A roll core (1), with roll shafts (2) integrally formed at both ends of the roll core (1); A rubber sleeve (3), which is sleeved outside the roll core (1); End fixing discs (4), two of the end fixing discs (4) are symmetrically sleeved on the roll shafts (2) and abut against the end faces of the roll core (1) to limit the rubber sleeve (3); An outer protective layer (5), which is integrally formed outside the rubber sleeve (3).

2. The high-temperature resistant polyurethane rubber roller according to claim 1, wherein Further comprising: An outer cage (6), several of the outer cages (6) are integrally formed on the outer wall of the roll core (1) evenly in a circumferential manner; Among them, the outer cage (6) extends from one end face of the roll core (1) to the other, and there is a gap formed between adjacent outer cages (6), and the rubber sleeve (3) is sleeved outside the outer cage (6).

3. The high-temperature resistant polyurethane rubber roller according to claim 2, characterized in that The outer cage (6) comprises: An outer support part, which contacts the rubber sleeve (3); An inner reinforcement part (6a), which is connected to the roll core (1) and supports the outer support part; Among them, a heat dissipation gap (7) is formed between the outer support part and the inner reinforcement part (6a).

4. The high-temperature resistant polyurethane rubber roller according to claim 3, wherein, The outer cage (6) further comprises: Outer anti-deviation ribs (6b), and outer anti-deviation ribs (6b) are arranged on the outer side of each outer support part.

5. The high-temperature resistant polyurethane rubber roller according to claim 4, characterized in that, The outer support part comprises: An outer arc surface support wall (6c), which is attached to the inner wall of the rubber sleeve (3); An inner gentle slope connecting wall (6d), which is located on one side connecting the inner reinforcement part (6a); Among them, the inner gentle slope connecting wall (6d) is inclined, so that the thickness of the outer support part shows a trend of increasing from one side to the other; and the outer anti-deviation ribs (6b) are integrally formed on the outer side of the outer arc surface support wall (6c) and an anti-deviation groove matching with the outer anti-deviation ribs (6b) is formed on the inner wall of the rubber sleeve (3).

6. The high-temperature resistant polyurethane rubber roller according to claim 3, characterized in that The outer cage (6) further comprises: Heat dissipation holes (6e), several of the heat dissipation holes (6e) are evenly distributed on the outer support part along the axial direction and penetrate through the outer support part.

7. A high-temperature resistant polyurethane rubber roller according to any one of claims 3-6, characterized in that, The inner reinforcement part (6a) is inclined and connected to the outer support part to form a shape like >.

8. A high-temperature resistant polyurethane rubber roller according to any one of claims 3-6, characterized in that, Further comprising: Side heat dissipation grooves (8), several of the side heat dissipation grooves (8) are evenly arranged on the end fixing disc (4) in a circumferential manner, and penetrate through the end fixing disc (4) and communicate with the heat dissipation gap (7).

9. A high-temperature resistant polyurethane rubber roller according to claim 1, characterized in that, The outer protective layer (5) is made of butyl rubber.

10. A high-temperature resistant polyurethane rubber roller according to claim 1, characterized in that, Further comprising: Thermal conduction ribs (9), several of the thermal conduction ribs (9) are evenly distributed on the rubber sleeve (3) and extend from the inner wall of the rubber sleeve (3) to the outer wall.

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