Double-layer structure roller body and conveying rubber roller

Abstract

The utility model discloses a roller body with a double-layer structure and a conveying rubber roller. The roller body with the double-layer structure comprises a buffer layer, a supporting layer, a reinforcing ring, a reinforcing rib and a shaft sleeve, the supporting layer is arranged on the inner surface of the buffering layer, the reinforcing rings and the reinforcing ribs are arranged between the inner surface of the supporting layer and the outer surface of the shaft sleeve, and the reinforcing rings are fixedly connected with the reinforcing ribs. The buffering layer, the supporting layer and the shaft sleeve used for installing the metal roller core are arranged, the supporting layer is used for improving the supporting capacity of the roller body, it is guaranteed that the roller body cannot deform, the buffering layer is used for improving the buffering capacity of the roller body, and the roller body is protected against direct physical damage; the reinforcing ribs and the reinforcing rings are arranged between the inner surface of the supporting layer and the outer surface of the shaft sleeve, the reinforcing ribs are used for reducing the influence of internal stress and avoiding deformation of the roller body, meanwhile, the reinforcing rings are used for increasing the strength of the roller body and converting radial force into axial force, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber rollers, in particular to a double-layer structure roller body and a conveying rubber roller. Background Art

[0002] A rubber roller is a roller-shaped product with a metal or other material core and an outer rubber covering vulcanized. A conveying rubber roller mainly consists of a metal roller core, an adhesive layer, and a covering rubber layer.

[0003] Most of the existing rubber rollers are made of single-layer rubber. Since it is in direct contact with the inner metal roller core, it is easy to reduce its antioxidant ability. At the same time, when using a rubber roller to convey items, the existing single-layer rubber roller has poor friction resistance.

[0004] To achieve better friction resistance, a double-layer rubber roller can be used. For example, a plastic laminating machine rubber roller disclosed in patent document CN110712782A includes a metal roller core, a foamed rubber layer made of foamed rubber material, and a non-foamed rubber layer made of non-foamed rubber material. The foamed rubber layer is arranged outside the metal roller core, and the non-foamed rubber layer is arranged outside the foamed rubber layer. This double-layer rubber roller composed of a non-foamed rubber layer and a foamed rubber layer is usually formed by pressing. When the rubber roller rotates at high speed, due to the influence of rolling and friction, heat will be generated, and the heat will cause the adhesion between the two rubber layers and between the foamed rubber layer and the metal roller core to decrease, resulting in delamination, affecting the use of the rubber roller. Moreover, the foamed rubber layer is directly wrapped around the outside of the metal roller core. Affected by heat and internal stress during long-term use, it is easy to deform, age, or break, thus affecting the performance of the rubber roller. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a double-layer structure roller body and a conveying rubber roller, aiming to solve the technical problem that the existing double-layer rubber roller is prone to delamination due to the decrease in adhesion during high-speed operation, or the aging of the foamed rubber layer affects the performance.

[0006] To achieve the above purpose, the utility model provides a double-layer structure roller body, including: a buffer layer, a support layer, a reinforcing ring, a reinforcing rib, and a bushing; the support layer is arranged on the inner surface of the buffer layer, and the reinforcing ring and the reinforcing rib are arranged between the inner surface of the support layer and the outer surface of the bushing, and the reinforcing ring is fixedly connected to the reinforcing rib.

[0007] Preferably, an annular groove is arranged between the buffer layer and the support layer.

[0008] Preferably, the outer surface of the buffer layer is provided with patterns.

[0009] Preferably, the shape of the pattern is a triangle or a regular quadrilateral.

[0010] Preferably, a splicing line is provided on the outer surface of the buffer layer.

[0011] Preferably, the end of the reinforcing rib is lower than the end of the bushing.

[0012] Preferably, the buffer layer is made of thermoplastic polyurethane rubber, and the thickness of the buffer layer is 2 to 8 mm;

[0013] The support layer is made of nylon fiberglass composite material, and the thickness of the support layer is 2 to 8 mm.

[0014] Preferably, the reinforcing ring, the reinforcing rib and the bushing are all made of nylon fiberglass composite material.

[0015] Preferably, the buffer layer and the support layer are formed by two-color injection molding.

[0016] In addition, the present invention also provides a conveying rubber roll, which includes a double-layer structure roll body and a roll core as described in any one of the above; the roll core is installed inside the double-layer structure roll body.

[0017] The double-layer structure roll body and the conveying rubber roll of the present invention have the following beneficial effects:

[0018] 1) For the double-layer structure roll body of the present invention, a buffer layer, a support layer and a bushing for installing a metal roll core are provided. The support layer is used to improve the support ability of the roll body to ensure that the roll body does not deform, and the buffer layer is used to improve the buffer ability of the roll body to protect the roll body from direct physical damage;

[0019] 2) For the double-layer structure roll body of the present invention, a reinforcing rib and a reinforcing ring are provided between the inner surface of the support layer and the outer surface of the bushing. The reinforcing rib is used to reduce the influence of internal stress to avoid deformation of the roll body. At the same time, the reinforcing ring is used to increase the strength of the roll body, convert the radial force into an axial force, and extend the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of a double-layer structure roll body in an embodiment of the present invention;

[0022] Figure 2 It is a front view of a double-layer structure roll body in an embodiment of the present invention;

[0023] Figure 3 is a schematic cross-sectional view along Figure 2 the A-A line in the middle;

[0024] Figure 4 is the internal cross-sectional view of the double-layer structure roller body in an embodiment of the present utility model;

[0025] Figure 5 is the three-dimensional structure schematic diagram of the conveying rubber roller in an embodiment of the present utility model.

[0026] The serial numbers in the figure are as follows:

[0027] 1. Buffer layer; 11. Joint line; 12. Pattern; 2. Support layer; 3. Reinforcing rib; 4. Reinforcing ring; 5. Bush; 6. Annular groove; 100. Double-layer structure roller body; 200. Roller core; 300. Transmission part. Detailed implementation manners

[0028] In order to better understand the above technical solutions, the exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0029] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] It should be noted that in the embodiments of the present utility model, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the coordinate system shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the parts referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two parts or the interaction relationship between two parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0033] The present utility model provides a double-layer structure roller body for conveying rubber rollers. Referring to Figures 1 to 4 , in one embodiment, the double-layer structure roller body includes a buffer layer 1, a support layer 2, a reinforcement ring 4, a reinforcing rib 3 and a bushing 5; the support layer 2 is disposed on the inner surface of the buffer layer 1, and the reinforcement ring 4 and the reinforcing rib 3 are disposed between the inner surface of the support layer 2 and the outer surface of the bushing 5, and the reinforcement ring 4 is fixedly connected to the reinforcing rib 3.

[0034] In this embodiment, the double-layer structure roller body includes a buffer layer 1. The support layer 2 is disposed on the inner surface of the buffer layer 1. The reinforcing ribs 3 are respectively disposed along the length direction (i.e., the axial direction) on the inner surface of the support layer 2, and the reinforcement ring 4 connected to the reinforcing ribs 3 is disposed along the radial direction. The reinforcing ribs 3 and the reinforcement ring 4 form a reinforcing member, and the inner surface of the support layer 2 is fixedly connected to the outer surface of the bushing 5 through the reinforcing member. Preferably, a certain plane is disposed on the inner surface of the bushing 5 for limiting the roller core.

[0035] It can be understood that the numbers of the reinforcing ribs 3 and the reinforcement ring 4 are set according to requirements. For example, the number of the reinforcing ribs 3 is set to 3 to 6, and the number of the reinforcement ring 4 is set to 1 to 5. In an alternative embodiment, when the number of the reinforcement ring 4 is set to one, the reinforcement ring 4 is disposed at the middle position of the bushing 5, and when the number of the reinforcing ribs 3 is set to four, the reinforcing ribs 3 are uniformly disposed along the axial direction between the support layer 2 and the bushing 5.

[0036] It is understandable that the outer diameter and length of the double-layer structure roller body are set according to requirements. For example, the outer diameter of the double-layer structure roller body is 10 to 60 cm, and the length is 10 to 100 mm.

[0037] In summary, the double-layer structure roller body of this embodiment has the following beneficial effects:

[0038] 1) For the double-layer structure roller body of this embodiment, a buffer layer 1, a support layer 2, and a bushing 5 for installing a metal roller core are provided. The support layer is used to improve the support ability of the roller body to ensure that the roller body does not deform, and the buffer layer 1 is used to improve the buffer ability of the roller body to protect the roller body from direct physical damage;

[0039] 2) For the double-layer structure roller body of this embodiment, by arranging reinforcing ribs 3 and reinforcing rings 4 between the inner surface of the support layer 2 and the outer surface of the bushing 5, the influence of internal stress is reduced by the reinforcing ribs 3 to avoid deformation of the roller body. At the same time, the strength of the roller body is increased by the reinforcing rings 4, the radial force is converted into an axial force, and the service life of the product is extended.

[0040] As a preferred embodiment, the material of the buffer layer 1 is thermoplastic polyurethane rubber, and the thickness of the buffer layer 1 is 2 to 8 mm; the material of the support layer 2 is nylon fiberglass composite material, and the thickness of the support layer 2 is 2 to 8 mm.

[0041] In this embodiment, the material of the buffer layer 1 is thermoplastic polyurethane rubber, the material of the support layer 2 is nylon fiberglass composite material, and the thickness of the buffer layer 1 is preferably the same as that of the support layer 2.

[0042] It is understandable that for the double-layer structure roller body of this embodiment, its inner layer (i.e., the support layer 2) is made of nylon fiberglass composite material. This layer not only has excellent wear resistance to resist wear during long-term operation, but also has strong support ability to ensure the stable structure of the roller body and bear high loads without deformation; the outer layer (i.e., the buffer layer 1) covers the inner layer, and thermoplastic polyurethane rubber (i.e., thermoplastic TPU) is selected. This layer can provide appropriate friction to ensure that the roller body can transfer power or materials smoothly and efficiently when contacting other components. At the same time, the elastic characteristics of thermoplastic TPU endow the outer layer with a significant buffering effect, effectively absorbing shocks and reducing vibrations, and protecting the equipment and the materials to be processed from damage. At this time, adopting this double-layer structure not only improves the running stability of the roller body, but also extends the overall service life.

[0043] As a preferred embodiment, the materials of the reinforcing ring 4, the reinforcing rib 3, and the bushing 5 are all nylon fiberglass composite materials.

[0044] It is understandable that for the double-layer structure roller body of this embodiment, the bushing 5 is in direct contact with the roller core, and the reinforcing ribs 3 and reinforcing rings 4 of the bushing 5 are made of the same material as the support layer 2, that is, nylon glass fiber composite material, which not only ensures the stability and durability of the contact with the roller core, but also significantly improves the overall mechanical strength.

[0045] As a preferred embodiment, referring to Figure 3 and Figure 4 , a circular groove 6 is provided between the buffer layer 1 and the support layer 2.

[0046] In this embodiment, a circular groove 6 is provided between the buffer layer 1 and the support layer 2. The circular groove 6 is a circular concave groove or a circular pointed shape, and the number of circular grooves 6 is set according to requirements.

[0047] For example, four circular concave grooves are provided at intervals on the outer surface of the support layer 2, and four circular convex grooves are provided on the inner surface of the buffer layer 1 to cooperate with the four circular concave grooves.

[0048] It is understandable that for the double-layer structure roller body of this embodiment, by providing the circular groove 6 between the buffer layer 1 and the support layer 2, the bonding force between the buffer layer 1 and the support layer 2 can be increased, and the buffer layer 1 can be prevented from falling off axially.

[0049] As a preferred embodiment, referring to Figure 1 and Figure 2 , a pattern 12 is provided on the outer surface of the buffer layer 1.

[0050] It is understandable that for the roller body of this embodiment, by providing the pattern 12 on the outer surface of the buffer layer 1, the effect of increasing friction can be achieved.

[0051] As a preferred embodiment, the shape of the pattern 12 is a triangle or a regular quadrilateral.

[0052] It is understandable that the pattern 12 on the outer surface of the buffer layer 1 can be a triangular pattern, or patterns such as a square or a rhombus.

[0053] As a preferred embodiment, referring to Figure 1 and Figure 2 , a splicing line 11 is provided on the outer surface of the buffer layer 1.

[0054] In this embodiment, at least one splicing line 11 is provided on the outer surface of the buffer layer 1 along the length direction (i.e., the axial direction). By providing the splicing line 11 on the outer surface of the buffer layer 1, the drop can be avoided when splicing the double-layer structure roller bodies.

[0055] As a preferred embodiment, referring to Figure 3 , the end of the reinforcing rib 3 is lower than the end of the bushing 5.

[0056] In this embodiment, the reinforcing rib 3 is axially arranged between the inner surface of the support layer 2 and the outer surface of the bushing 5, and both ends of the reinforcing rib 3 are lower than the ends of the bushing 5. Through this clearance treatment, production and assembly are facilitated.

[0057] As a preferred embodiment, the buffer layer 1 and the support layer 2 are formed by two-color injection molding.

[0058] The existing double-layer rubber roller is formed by pressing two layers of rubber. During use, it is prone to delamination due to poor adhesion, affecting its use. At the same time, it is difficult to grind and process the rubber surface, and it is difficult to process a surface with high smoothness.

[0059] In this embodiment, the support layer 2 and the buffer layer 1 of the roller body are formed by two-color injection molding. Further, the semi-finished product after two-color injection molding is integrally formed with the reinforcement ring 4 and the reinforcing rib 3. Compared with the existing double-layer rubber roller formed by pressing two rubber layers, the two-color injection molding method reduces the mold change time. At the same time, the compatibility between the inner and outer layers of the two materials is strong, the bonding is firm, and delamination is not likely to occur. Moreover, there is no need to grind and process the rubber surface, improving the yield rate. Further, combined with the integral forming method, it can reduce the production steps, lower the production cost, and improve the production efficiency.

[0060] In addition, the present utility model also provides a conveying rubber roller. Referring to Figure 5 , in one embodiment, the conveying rubber roller includes a double-layer structure roller body 100 and a roller core 200 as described in any of the above embodiments; the roller core 200 is installed inside the double-layer structure roller body 100.

[0061] Further, nuts are installed at both ends of the roller core 200.

[0062] It can be understood that for the conveying rubber roller in this embodiment, multiple groups of double-layer structure roller bodies 100 can be installed at intervals on the roller core 200 according to production requirements. Each group of double-layer structure roller bodies 100 is connected by a transmission member 300. For a group of double-layer structure roller bodies 100, it can include one or multiple continuous double-layer structure roller bodies 100. When a group of double-layer structure roller bodies 100 includes multiple continuous double-layer structure roller bodies 100, the multiple double-layer structure roller bodies 100 are spliced according to the splicing line 11.

[0063] In summary, for the conveying rubber roller in this embodiment, through the double-layer structure roller body 100 installed on the roller core 200, while achieving stable and efficient conveying of items, it can ensure that the conveying rubber roller has good friction resistance, buffering performance, and running stability, as well as extend the overall service life of the conveying rubber roller.

[0064] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A double-layer structure roller body, characterized in that, The double-layer structure roll body includes: a buffer layer, a support layer, a reinforcing ring, reinforcing ribs, and a bushing; the support layer is disposed on the inner surface of the buffer layer, and the reinforcing ring and the reinforcing ribs are disposed between the inner surface of the support layer and the outer surface of the bushing, and the reinforcing ring is fixedly connected to the reinforcing ribs.

2. The double-layer structure roller body according to claim 1, characterized in that, An annular groove is disposed between the buffer layer and the support layer.

3. The double-layer structure roller body according to claim 1, wherein, Patterns are provided on the outer surface of the buffer layer.

4. The double-layer structure roller body according to claim 3, wherein, The shape of the patterns is triangular or regular quadrilateral.

5. The double-layer structure roller body according to claim 1, characterized in that, A splicing line is provided on the outer surface of the buffer layer.

6. The double-layer structure roll body according to claim 1, characterized in that, The end of the reinforcing rib is lower than the end of the bushing.

7. The double-layer structure roller body according to claim 1, wherein The material of the buffer layer is thermoplastic polyurethane rubber, and the thickness of the buffer layer is 2 to 8 millimeters; The material of the support layer is a nylon glass fiber composite material, and the thickness of the support layer is 2 to 8 millimeters.

8. The double-layer structure roller body according to claim 7, wherein The materials of the reinforcing ring, the reinforcing ribs, and the bushing are all nylon glass fiber composite materials.

9. The double-layer structure roller body according to claim 7, characterized in that, The buffer layer and the support layer are formed by two-color injection molding.

10. A transfer rubber roller, characterized in that, The conveyor rubber roll includes the double-layer structure roll body as described in any one of claims 1-9 and a roll core; the roll core is installed inside the double-layer structure roll body.

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