Elastic polyurethane rubber roller

Abstract

The utility model belongs to the technical field of rubber covered rollers, and particularly relates to an elastic polyurethane rubber covered roller which comprises a roller body, and roller shafts are formed at the two ends of the roller body. The rubber roller sleeve is arranged outside the roller body in a sleeving manner; the two limiting covers are arranged at the two ends of the roller body respectively and limit the rubber roller sleeve; and the multiple inner supporting assemblies are evenly distributed between the rubber roller sleeve and the roller body according to the circumference.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber rollers, in particular to an elastic polyurethane rubber roller. Background Art

[0002] The rubber roller is a roll-shaped product made of metal or other materials as the core and rubber covered by vulcanization. It is an important component of the printing machine. The rubber roller has moderate hardness and elasticity, high oil resistance, washing solvent resistance, wear resistance and shape stability. However, the existing printing rubber roller has a simple structure and poor rebound performance, which can easily cause the printing rubber roller to deform and is not durable enough, which affects the service life of the rubber roller. Utility Model Content

[0003] The purpose of the utility model is to provide a simple structure with good elasticity and stable structure in order to solve the above-mentioned technical problems.

[0004] In view of this, the utility model provides an elastic polyurethane rubber roller, comprising:

[0005] A roller body, with roller shafts formed at both ends of the roller body;

[0006] The rubber roller sleeve is arranged outside the roller body;

[0007] Limiting covers, two limiting covers are respectively arranged at both ends of the roller body and limit the rubber roller sleeve;

[0008] Inner support components, a plurality of inner support components are evenly distributed between the rubber roller sleeve and the roller body along the circumference.

[0009] In the present technical solution, the roller body plays a good supporting role in the rubber roller, and the roller shaft can facilitate the installation and fixation of the rubber roller; the rubber roller sleeve is made of polyurethane rubber, and is sleeved outside the roller body and limited by a limit cover, and the inner support is first assembled on the roller body before the rubber roller sleeve is sleeved on the roller body; and the set inner support assembly plays a good elastic support effect between the rubber roller sleeve and the roller body, thereby improving the overall elasticity and service life of the rubber roller.

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

[0011] Positioning ribs, a plurality of positioning ribs are integrally formed on the outside of the roller body;

[0012] Positioning grooves, a plurality of positioning grooves are evenly distributed on the inner wall of the rubber roller sleeve according to the circumference;

[0013] The positioning rib is matched with the positioning groove.

[0014] In this technical solution, the cooperation between the positioning ribs and the positioning grooves can improve the stability of the connection between the roller body and the rubber roller sleeve, and can ensure that the roller body can transmit the torque to the rubber roller sleeve without the need for adhesives, and can facilitate the subsequent maintenance and replacement of the rubber roller sleeve.

[0015] In the above technical solution, further, it also includes:

[0016] Support grooves, a plurality of support grooves are formed between the roller body and the rubber roller sleeve;

[0017] The supporting grooves and the positioning grooves are alternately distributed, and the inner supporting components are arranged in the supporting grooves.

[0018] In the technical solution, the setting of the support groove can facilitate the installation and fixation of the inner support assembly, so in the above technical solution, further, the inner support assembly includes:

[0019] Supporting pieces, a plurality of supporting pieces are evenly distributed in the supporting groove;

[0020] The limiting rod is inserted from one end of the limiting cover and passes through a plurality of supporting sheets and then comes out from the other limiting rod.

[0021] In the present technical solution, the support sheet is supported in the support groove, thereby providing good elastic support for the rubber roller sleeve and the roller body, and the setting of the limit rod can improve the stability of the overall structure of the inner support assembly.

[0022] In the above technical solution, further, the supporting sheet includes:

[0023] Connecting parts, the two connecting parts are symmetrically arranged and fixedly connected to the supporting groove on one side of the roller body;

[0024] The support part is formed in a trapezoidal shape in the middle of the two connecting parts and protrudes toward the support groove located on the side of the rubber roller sleeve and abuts against each other, and the support part is in an arc shape.

[0025] In the present technical solution, the connecting portion is used to connect to the roller body and can be fixed by bolts, thereby facilitating the disassembly and installation of the support sheet; and the supporting portion is provided to provide good support for the rubber roller sleeve, thereby reducing the probability of deformation of the rubber roller sleeve and increasing the overall service life of the rubber roller.

[0026] In the above technical solution, further, the support sheet also includes:

[0027] An arc-shaped receiving portion is provided at the connection between the supporting portion and the connecting portion;

[0028] A matching groove, which runs through both sides of the supporting part;

[0029] The limiting rod passes through the matching groove and is gap-matched with the matching groove.

[0030] In the present technical solution, the setting of the limit rod can play a role in supporting the support sheet and reduce the radial deviation of the support sheet; the setting of the arc-shaped receiving part can ensure the stability of the connection between the support part and the connecting part.

[0031] In the above technical solution, further, the supporting sheet is made of elastic metal.

[0032] In the present technical solution, the support sheet made of elastic metal material can play a good elastic supporting effect, thereby ensuring good support for the rubber roller cover and ensuring that the structure of the rubber roller cover is stable and not easily deformed.

[0033] In the above technical solution, further, both ends of the limiting rod are respectively fixedly connected to the limiting cover.

[0034] In the technical solution, both ends of the limit rod pass through the limit cover respectively and are then fixed in a detachable manner by bolts or other means, thereby facilitating the maintenance of the rubber roller in the later stage.

[0035] The beneficial effects of the utility model are:

[0036] 1. The inner support component plays a good elastic support role between the rubber roller sleeve and the roller body;

[0037] 2. The cooperation between the positioning rib and the positioning groove can improve the connection between the roller body and the rubber roller sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model;

[0039] Figure 2 It is a schematic diagram of a transverse section of the utility model;

[0040] Figure 3 It is a longitudinal cross-sectional schematic diagram of the utility model;

[0041] Figure 4 It is a partial structural schematic diagram of the utility model;

[0042] Figure 5 It is a structural schematic diagram of the support sheet in the utility model;

[0043] The markings in the figure are: 1-roller body, 2-rubber roller sleeve, 3-limiting cover, 4-positioning rib, 5-support groove, 6-support plate, 6a-connecting part, 6b-support part, 6c-arc-shaped receiving part, 6d-matching groove, 7-limiting rod. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] Embodiment 1:

[0046] This embodiment provides an elastic polyurethane rubber roller, comprising:

[0047] A roller body 1, with roller shafts formed at both ends of the roller body 1;

[0048] The rubber roller cover 2 is arranged outside the roller body 1;

[0049] Limiting covers 3, two limiting covers 3 are respectively arranged at two ends of the roller body 1 and limit the rubber roller sleeve 2;

[0050] Inner support components, a plurality of inner support components are evenly distributed between the rubber roller sleeve 2 and the roller body 1 along the circumference.

[0051] In the present technical solution, the roller body 1 plays a good supporting role in the rubber roller, and the roller shaft can facilitate the installation and fixation of the rubber roller; the rubber roller cover 2 is made of polyurethane rubber, and is sleeved outside the roller body 1 and limited by the limit cover 3, and the inner support is first assembled on the roller body 1 before the rubber roller cover 2 is sleeved on the roller body 1; and the set inner support component plays a good elastic support effect between the rubber roller cover 2 and the roller body 1, thereby improving the overall elasticity and service life of the rubber roller.

[0052] Embodiment 2:

[0053] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] Also includes:

[0055] Positioning ribs 4, a plurality of positioning ribs 4 are integrally formed on the outer side of the roller body 1;

[0056] Positioning grooves, a plurality of positioning grooves are evenly distributed on the inner wall of the rubber roller sleeve 2 according to the circumference;

[0057] The positioning rib 4 is matched with the positioning groove.

[0058] In the present technical solution, the cooperation between the positioning rib 4 and the positioning groove can improve the stability of the connection between the roller body 1 and the rubber roller sleeve 2, and can ensure that the roller body 1 can transmit the torque to the rubber roller sleeve 2 without the need for adhesives, and can facilitate the maintenance and replacement of the rubber roller sleeve 2 in the later stage.

[0059] Embodiment 3:

[0060] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] Also includes:

[0062] Support grooves 5, a plurality of support grooves 5 are formed between the roller body 1 and the rubber roller cover 2;

[0063] The supporting grooves 5 and the positioning grooves are alternately distributed, and the inner supporting components are arranged in the supporting grooves 5 .

[0064] In this technical solution, the setting of the support groove 5 can facilitate the installation and fixation of the inner support assembly, thereby

[0065] Embodiment 4:

[0066] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] The inner support assembly includes:

[0068] A support sheet 6, wherein a plurality of support sheets 6 are equidistantly distributed in the support groove 5;

[0069] The limiting rod 7 is inserted from one end of the limiting cover 3 and passes through a plurality of supporting sheets 6 and then passes out from another limiting rod 7 .

[0070] In the present technical solution, the support sheet 6 is supported in the support groove 5, thereby providing good elastic support for the rubber roller sleeve 2 and the roller body 1, and the setting of the limit rod 7 can improve the stability of the overall structure of the inner support assembly.

[0071] Embodiment 5:

[0072] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] The support sheet 6 comprises:

[0074] The two connecting parts 6a are symmetrically arranged and fixedly connected to the supporting groove 5 on one side of the roller body 1;

[0075] The support portion 6b is formed in a trapezoidal shape in the middle of the two connecting portions 6a and protrudes toward the support groove 5 located on the side of the rubber roller cover 2 and abuts against each other, and the support portion 6b is in an arc shape.

[0076] In the present technical solution, the connecting portion 6a is used to connect to the roller body 1 and can be fixed by bolts, thereby facilitating the disassembly and installation of the support sheet 6; and the supporting portion 6b is provided to provide good support for the rubber roller cover 2, thereby reducing the deformation probability of the rubber roller cover 2 and increasing the overall service life of the rubber roller.

[0077] Embodiment 6:

[0078] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0079] The support sheet 6 also includes:

[0080] An arc-shaped receiving portion 6c is provided at the connection between the supporting portion 6b and the connecting portion 6a;

[0081] Matching groove 6d, matching groove 6d passes through both sides of the supporting portion 6b;

[0082] The limiting rod 7 passes through the matching groove 6d and is in clearance fit with the matching groove 6d.

[0083] In the present technical solution, the setting of the limit rod 7 can support the support sheet 6 and reduce the radial deviation of the support sheet 6; the setting of the arc-shaped receiving portion 6c can ensure the stability of the connection between the support portion 6b and the connecting portion 6a.

[0084] Embodiment 7:

[0085] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] The supporting sheet 6 is made of elastic metal.

[0087] In the present technical solution, the support sheet 6 made of elastic metal material can play a good elastic supporting role, thereby ensuring good support for the rubber roller cover 2 and ensuring that the structure of the rubber roller cover 2 is stable and not easily deformed.

[0088] Embodiment 8:

[0089] This embodiment provides an elastic polyurethane rubber roller, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0090] Both ends of the limiting rod 7 are fixedly connected to the limiting cover 3 respectively.

[0091] In the present technical solution, both ends of the limit rod 7 pass through the limit cover 3 respectively and are then fixed in a detachable manner by bolts or other means, thereby facilitating the subsequent maintenance of the rubber roller.

[0092] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An elastic polyurethane rubber roller, characterized in that: include: A roller body (1), wherein roller shafts are formed at both ends of the roller body (1); A rubber roller cover (2), wherein the rubber roller cover (2) is arranged outside the roller body (1); Limiting covers (3), two limiting covers (3) are respectively arranged at two ends of the roller body (1) and limit the rubber roller sleeve (2); An inner support assembly, wherein a plurality of the inner support assemblies are evenly distributed along the circumference between the rubber roller sleeve (2) and the roller body (1).

2. The elastic polyurethane rubber roller according to claim 1, characterized in that: Also includes: Positioning ribs (4), wherein a plurality of the positioning ribs (4) are integrally formed on the outer side of the roller body (1); Positioning grooves, wherein a plurality of the positioning grooves are evenly distributed on the inner wall of the rubber roller sleeve (2) along a circumference; The positioning rib (4) is matched with the positioning groove.

3. An elastic polyurethane rubber roller according to claim 2, characterized in that: Also includes: Support grooves (5), wherein a plurality of the support grooves (5) are formed between the roller body (1) and the rubber roller cover (2); The support grooves (5) and the positioning grooves are alternately distributed, and the inner support components are arranged in the support grooves (5).

4. The elastic polyurethane rubber roller according to claim 3, characterized in that: The inner support assembly comprises: A supporting sheet (6), wherein a plurality of the supporting sheets (6) are equidistantly distributed in the supporting groove (5); A limiting rod (7), wherein the limiting rod (7) penetrates from one end of the limiting cover (3), passes through a plurality of supporting sheets (6), and then passes out from another limiting rod (7).

5. The elastic polyurethane rubber roller according to claim 4, characterized in that: The support sheet (6) comprises: A connecting portion (6a), wherein the two connecting portions (6a) are symmetrically arranged and fixedly connected to the supporting groove (5) on one side of the roller body (1); The support portion (6b) is formed in a trapezoidal shape in the middle of the two connecting portions (6a) and protrudes toward and abuts against the support groove (5) located on the side of the rubber roller sleeve (2), and the support portion (6b) is arc-shaped.

6. The elastic polyurethane rubber roller according to claim 5, characterized in that: The support sheet (6) further comprises: An arc-shaped receiving portion (6c), wherein the arc-shaped receiving portion (6c) is provided at the connection between the supporting portion (6b) and the connecting portion (6a); A matching groove (6d), wherein the matching groove (6d) passes through both sides of the supporting portion (6b); The limiting rod (7) passes through the matching groove (6d) and is clearance-matched with the matching groove (6d).

7. The elastic polyurethane rubber roller according to claim 6, characterized in that: The supporting sheet (6) is made of elastic metal.

8. The elastic polyurethane rubber roller according to claim 7, characterized in that: Both ends of the limiting rod (7) are respectively fixedly connected to the limiting cover (3).

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