Composite casting molding type polyurethane rubber roller

Abstract

The utility model discloses a composite casting molding type polyurethane rubber covered roller which comprises a rubber covered roller body, the rubber covered roller body comprises a roller core and roller shafts detachably connected with the roller core, a first free end and a second free end are arranged on the two sides of the roller core, and the roller shafts are arranged on the roller core at intervals. The first free end and the second free end are connected with the roller core in a detachable mode, the first free end and the second free end are in threaded connection with the roller core in a detachable mode, the first free end and the second free end extend outwards to form supporting ends, the supporting ends are of a short shaft structure, and the roller shafts arranged on the roller core are arranged at intervals. Key groove blocks are arranged on the roller core at intervals, the key groove blocks are installed in key grooves formed in the roller core, bolt positioning holes are formed in the center positions of the key groove blocks, and the bolt positioning holes and positioning channels formed in the roller core are coaxially arranged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rubber roll, concretely relates to a composite casting forming type polyurethane rubber roll. BACKGROUND

[0002] Rubber roll is the roll product made of metal or other material as the core and covered with rubber after vulcanization, which can be divided into papermaking rubber roll, printing and dyeing rubber roll, printing rubber roll, rice huller rubber roll, metallurgical rubber roll and mimeograph rubber roll according to the use, and the printing rubber roll is mainly used for transferring ink on the offset press, the rubber roll is an important equipment of the printing machine, which is used for transferring and coating ink to the printing plate, and the rubber roll directly affects the quality of products, so the rubber roll needs to be regularly disassembled, replaced, maintained and repaired.

[0003] The existing printing machine rubber roll structure can refer to the Chinese utility model patent with the application number CN202222696232.8, a rubber roll structure for printing machine, which comprises an ink basin, bearing seats are arranged on the front and rear sides of the ink basin, a first driving shaft is arranged in the bearing seat and close to one side, the first driving shaft is connected with one side of the ink basin through bearings, a screen roller is sleeved on the outer side of the first driving shaft, the screen roller is fixedly connected with the first driving shaft, a second driving shaft is arranged on one side of the bearing seat close to the first driving shaft, a rubber roll is sleeved on the outer side of the second driving shaft, and the rubber roll is in a fixed connection relationship with the second driving shaft. The rubber roll structure for printing machine can adjust the rotating speeds of the screen roller and the rubber roll respectively through the mode that the liquid pressure motor drives the rotation of the rubber roll alone, can adjust the rotating speeds of the screen roller and the rubber roll according to the actual rotating speed requirement, and is practical.

[0004] However, the printing machine rubber roll in the above-mentioned technology adopts a whole structure, the whole has poor heat dissipation, the surface of the rubber roll is uneven during daily work, the rubber roll with the whole structure is prone to deformation and damage after long-term use, especially under the operation conditions of continuous high load and high temperature, in addition, the whole rubber roll is prone to causing the accumulation of materials on the roll surface, which affects the production efficiency and product quality, and the whole rubber roll needs to be replaced in this state, thereby increasing the cost.

[0005] In view of the above factors, a composite casting forming type polyurethane rubber roll is provided, which can be assembled and disassembled and replaced in the use state, and the overall stability of the roll shaft is improved. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a composite casting forming type polyurethane rubber roll to solve the problems in the above background technology.

[0007] The utility model discloses a composite pouring forming type polyurethane roller, including the roller body, the roller body includes the roll core and with the roll core with detachable mode connection's roll axle, the both sides of roll core are provided with first free end and second free end,

[0008] The roll axle is arranged on the roll core, and the first free end and the second free end are detachably connected with the roll core.

[0009] Further, the first free end and the second free end are detachably connected with the roll core by screw connection, the first free end and the second free end extend outwardly with a support end, and the support end is a short shaft structure.

[0010] Further, the roll axles are arranged on the roll core, and the roll core is provided with key groove blocks arranged at intervals, the key groove blocks are installed in the key grooves formed on the roll core;

[0011] A bolt positioning hole is arranged at the center of the key groove block, the bolt positioning hole is coaxially arranged with the positioning channel formed on the roll core, and is positioned by a bolt, and the bolt positioning hole is arranged in a counterbore structure.

[0012] Further, the roll axles are single-shaft structures, the adjacent roll axles are arranged at intervals of 3-5 mm, the roll axles include positioning shaft cores, the positioning shaft cores are made of metal materials, and the outer circumferences of the positioning shaft cores are coated with polyurethane layers.

[0013] Further, limit grooves are symmetrically arranged on the inner walls of the positioning shaft cores, and the limit grooves cooperate with the key groove blocks.

[0014] Further, locking holes are symmetrically arranged on the key groove blocks, and the locking holes are arranged in a bolt hole structure.

[0015] A bolt channel is formed along the circumferential surface of the polyurethane layer, and the bolt channel is arranged in a through hole structure.

[0016] Further, the roll axles are double-shaft structures, the adjacent roll axles are arranged at intervals of 3-5 mm, the roll axles include positioning shaft cores, the positioning shaft cores are made of metal materials, and the outer circumferences of the positioning shaft cores are coated with polyurethane layers.

[0017] Further, limit grooves are symmetrically arranged on the inner walls of the positioning shaft cores, and the limit grooves cooperate with the key groove blocks.

[0018] Locking holes are symmetrically arranged on the key groove blocks, and the locking holes are arranged in a bolt hole structure.

[0019] A bolt channel is arranged along the circumferential surface of the polyurethane layer.

[0020] Compared with the prior art, the utility model has the beneficial effects of:

[0021] The roll shaft of the utility model adopts a composite polyurethane layer, and each roll shaft is arranged separately, the separate roll shaft comprises an independent roll core and a polyurethane layer wrapped outside the independent roll core, a rubber coating layer is arranged on the roll core, vulcanization treatment is carried out after the polyurethane layer, the polyurethane layer is a composite cast polyurethane glue (the polyurethane layer composite comprises the reaction product of polyol and isocyanate TDI, and the composite of vulcanizing agent MOCA), each roll shaft can be disassembled from the roll core, subsequent wear and replacement are facilitated, the separate roll shaft and roll core are matched and are not prone to deformation, the overall heat dissipation can be improved, the stability of the fiber on the roll shaft can be ensured under the condition of high load, and the service life is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic view of the utility model;

[0023] Figure 2 It is a plane schematic view of the utility model;

[0024] Figure 3 It is a key groove block and bolt positioning hole schematic view of the utility model;

[0025] Figure 4 It is a polyurethane layer bolt channel arrangement schematic view of the utility model;

[0026] Figure 5 It is a plane schematic view of the utility model;

[0027] Figure 6 It is a single shaft structure schematic view of the utility model;

[0028] Figure 7 It is a double shaft structure schematic view of the utility model. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] like Figures 1-7 As shown, a composite casting-molded polyurethane roller includes a roller body 1, the roller body 1 includes a roller core 2 and a roller shaft 3 detachably connected to the roller core 2, and the roller core 2 is provided with a first free end 4 and a second free end 5 on both sides.

[0033] The roller shafts 3 are spaced apart on the roller core 2, and the first free end 4 and the second free end 5 are detachably connected to the roller core 2.

[0034] To facilitate detachable replacement during use, the first free end 4 and the second free end 5 are detachably connected to the roller core 2 via a threaded connection. The first free end 4 and the second free end 5 extend outward to form a support end, which is a short shaft structure.

[0035] To facilitate the limiting and fixing of the roller shaft by setting keyway blocks 6 during use, the roller shafts 3 are arranged at intervals on the roller core 2, and keyway blocks 6 are arranged at intervals on the roller core 2. The keyway blocks 6 are installed in the keyways opened on the roller core 2.

[0036] The keyway block 6 has a bolt positioning hole 7 at its center. The bolt positioning hole 7 is coaxially arranged with the positioning channel opened on the roller core 2 and is positioned by bolts. The bolt positioning hole 7 is a countersunk hole structure.

[0037] Depending on the usage state, the roller shaft is set as a single shaft structure. The roller shaft 3 is a single shaft structure, and the interval between adjacent roller shafts 3 is 3-5mm. The roller shaft 3 includes a positioning shaft core 11, which is made of metal material, and the outer circumference of the positioning shaft core 11 is composite cast with a polyurethane layer 12.

[0038] The positioning shaft core 11 is symmetrically provided with a limiting groove 9 along the inner wall, and the limiting groove 9 cooperates with the key groove block 6.

[0039] The key groove block 6 is symmetrically provided with a locking hole 8, and the locking hole 8 is provided in the form of a bolt hole structure.

[0040] The bolt channel 13 is provided along the circumferential surface of the polyurethane layer 12 and is provided in the form of a through hole structure.

[0041] In the use state, the roller shaft is provided in the form of a double shaft structure according to different use states, the adjacent roller shafts 3 are provided with a spacing of 3-5 mm, the roller shaft 3 comprises a positioning shaft core 11, the positioning shaft core 11 is made of metal, and the outer circumference of the positioning shaft core 11 is compounded with a polyurethane layer 12.

[0042] The positioning shaft core 11 is symmetrically provided with a limiting groove 9 along the inner wall, and the limiting groove 9 cooperates with the key groove block 6.

[0043] The key groove block 6 is symmetrically provided with a locking hole 8, and the locking hole 8 is provided in the form of a bolt hole structure.

[0044] The bolt channel 13 is provided along the circumferential surface of the polyurethane layer 12 and is provided in the form of a through hole structure.

[0045] The roller shaft adopts a polyurethane layer 12, and each roller shaft is provided separately, the separate roller shaft comprises a separate roller core and a polyurethane layer 12 wrapped outside the separate roller core, a rubber coating layer 10 is arranged on the roller core, vulcanization treatment is performed after the polyurethane layer 12, the polyurethane layer 12 is a composite cast polyurethane glue (the polyurethane layer composite comprises a reaction product of polyol and isocyanate TDI, and a composite of vulcanizing agent MOCA), each roller shaft can be disassembled from the roller core 2, subsequent wear replacement is facilitated, the separate roller shaft and the roller core are matched and are not prone to deformation, the overall heat dissipation can be improved, the stability of the fiber on the roller shaft can be ensured under the condition of high load, and the service life is improved.

[0046] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0047] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A polyurethane roll of the cast composite type, characterized in that: The application relates to a rubber roller body (1) which comprises a roller core (2) and a roller shaft (3) detachably connected with the roller core (2), and first and second free ends (4 and 5) are arranged on the two sides of the roller core (2). The roller shaft (3) is arranged on the roller core (2) in a spaced manner, and the first and second free ends (4 and 5) are detachably connected with the roller core (2).

2. The composite cast polyurethane roll according to claim 1, wherein: The detachable connection between the first and second free ends (4 and 5) and the roller core (2) is screw connection, the first and second free ends (4 and 5) extend outwardly to support ends, and the support ends are short shaft structures.

3. The composite cast polyurethane roll according to claim 2, wherein: The roller shaft (3) is arranged on the roller core (2) in a spaced manner, and the roller core (2) is provided with key groove blocks (6) arranged in a spaced manner. A bolt positioning hole (7) is arranged at the center of the key groove block (6), the bolt positioning hole (7) is coaxially arranged with a positioning channel arranged on the roller core (2), and the bolt positioning hole (7) is positioned by a bolt, and the bolt positioning hole (7) is arranged in a counterbore structure.

4. The composite cast polyurethane roll according to claim 3, wherein: The roller shaft (3) is a single shaft structure, the interval between adjacent roller shafts (3) is 3-5 mm, the roller shaft (3) comprises a positioning shaft core (11), the positioning shaft core (11) is made of metal, and a polyurethane layer (12) is compounded and cast on the outer circumference of the positioning shaft core (11).

5. The composite cast polyurethane roll as claimed in claim 4, wherein: Limiting grooves (9) are symmetrically arranged on the inner wall of the positioning shaft core (11) and matched with the key groove blocks (6).

6. The composite cast polyurethane roll as claimed in claim 5, wherein: Locking holes (8) are symmetrically arranged on the key groove blocks (6) and arranged in a bolt hole structure. A bolt channel (13) is arranged along the circumferential surface of the polyurethane layer (12) and arranged in a through hole structure.

7. The composite cast polyurethane roll according to claim 3, wherein: The roller shaft (3) is a double shaft structure, the interval between adjacent roller shafts (3) is 3-5 mm, the roller shaft (3) comprises a positioning shaft core (11), the positioning shaft core (11) is made of metal, and a polyurethane layer (12) is compounded and cast on the outer circumference of the positioning shaft core (11).

8. The composite cast polyurethane roll according to claim 7, wherein: Limiting grooves (9) are symmetrically arranged on the inner wall of the positioning shaft core (11) and matched with the key groove blocks (6). Locking holes (8) are symmetrically arranged on the key groove blocks (6) and arranged in a bolt hole structure. A bolt channel (13) is arranged along the circumferential surface of the polyurethane layer (12) and arranged in a through hole structure.

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