Embossing roller structure with fixed mandrel

Abstract

The utility model belongs to the technical field of embossing rollers, and particularly relates to a mandrel-fixed embossing roller structure which comprises an outer roller and an inner mandrel, an embossing layer is arranged on the outer wall of the outer roller in a surrounding mode, one end of the outer roller is coaxially connected with a driving wheel in series, the other end of the outer roller is coaxially connected with a plug baffle in series, and the inner side of the outer roller is hollow. A bearing clamping base is arranged on the inner side of the outer roller, a rotating bearing is installed in the bearing clamping base, and the inner core shaft is fixedly connected into the rotating bearing in series and penetrates through the driving wheel and the plug baffle. The embossing roller provided by the utility model has the advantages that the outer cylinder rotates while the mandrel is fixed, the structure is stable and simple, the assembly and disassembly are convenient, the embossing quality of a product is favorably improved, and the shutdown time for equipment maintenance can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of embossing rollers, and particularly to a structure of an embossing roller cylinder with a fixed mandrel. Background Art

[0002] An embossing roller refers to a cylindrical object that can rotate in a machine. In the machine, a common power source is used to drive the embossing roller cylinder to roll on the surface of a paper towel material. By using the pressure generated by the embossing roller cylinder, the paper towel material is processed. As the most core part of a paper towel embossing machine device, by pressing different embossing shapes, it can improve the water absorption performance of the paper towel, enhance the surface beauty of the paper towel product, strengthen anti-counterfeiting, and protect trademarks.

[0003] After the roller pressing operation, the embossed surface of the embossing roller will inevitably continue to wear due to continuous roller pressing contact. In order to maintain the roller pressing quality, unless the damage has reached an unusable state, it is usually still used after repair to save the cost increased by replacing new products. However, the repair operation of the embossing roller is not only troublesome and time-consuming, but also easily hinders the production progress. In view of this, there are embossing roller components on the market that can disassemble the roller cylinder with a textured surface from the rotating shaft to facilitate equipment maintenance.

[0004] For example, in the patent document with the patent number CN200510093853.5 and the name "Embossing Roller", an embossing roller is disclosed, which mainly has a shaft rod and a plurality of embossing wheel rings sleeved and combined on the shaft rod. Each embossing wheel ring is adjacent to and abuts against each other, and has a texture engraved on the surface to form a continuous roller pressing surface. Thus, when a local roller pressing surface on the embossing roller is damaged due to wear or other factors, only the damaged embossing wheel ring needs to be removed for repair, or directly replace the damaged part of the embossing wheel ring, which is both fast and simple.

[0005] However, the above-designed embossing roller has many components, has high requirements for assembly accuracy, requires frequent maintenance, and needs to adjust the drive alignment every time after disassembly and assembly, leaving room for great improvement. Content of the Utility Model

[0006] In order to solve the problem that although the embossing concave-convex patterns on the surface of the commonly used embossing roller cylinder on the market can be disassembled, maintained and replaced, the design is relatively complex, the disassembly and assembly alignment operation is time-consuming, and it is not convenient to use, a structure of an embossing roller cylinder with a fixed mandrel is provided.

[0007] An embossing roller structure with a fixed core shaft comprises an outer roller and an inner core shaft, wherein an embossing layer is arranged around the outer wall of the outer roller, a driving wheel is coaxially connected to one end of the outer roller, and a plug baffle is coaxially connected to the other end, the inner side of the outer roller is hollow, a bearing seat is arranged on the inner side of the outer roller, a rotating bearing is installed in the bearing seat, the inner core shaft is fixedly connected in series in the rotating bearing, and the inner core shaft passes through the driving wheel and the plug baffle.

[0008] Furthermore, an outer side of the driving wheel is surrounded by an external tooth pattern, the external tooth pattern is meshed with a synchronous belt, and the synchronous belt is driven and connected to a rotating module.

[0009] Furthermore, bolt seats are provided at both ends of the outer roller, and positioning bolts are passed through the driving wheel and the plug baffle, and the positioning bolts are butt-jointed with the threaded seats.

[0010] Furthermore, a limiting ring is provided on the inner core shaft corresponding to the bearing seat and the inner ring of the rotary bearing, and the diameter of the limiting ring is larger than the inner ring of the rotary bearing.

[0011] Furthermore, a limit baffle is serially connected to the inner core shaft, and the rotary bearing is serially connected between the limit ring and the limit baffle.

[0012] Furthermore, a serial nut is provided in the middle of the limit baffle, and a limit thread is provided on the inner core shaft corresponding to the serial nut.

[0013] Furthermore, bearing seats are symmetrically arranged at both ends of the inner side of the outer roller, and limiting rings and limiting baffles are arranged at both ends of the inner core shaft corresponding to the bearing seats.

[0014] Furthermore, oil seals are provided in the middle of the driving wheel and the plug baffle, and the inner core shaft is inserted into the oil seals.

[0015] The advantages of the utility model are:

[0016] 1. When the embossing roller is running, the high-speed disturbance deformation is small and the heat generation is low, and the embossing pattern effect is continuous, stable and relatively uniform.

[0017] 2. The internal and external structures of the embossing roller are not assembled by welding. When mechanical problems occur, local components can be replaced to reduce the cost of use.

[0018] 3. It eliminates the precision requirements for traditional bearing seats, has low reliance on the skills of debugging operators, can shorten replacement time and improve efficiency.

[0019] 4. Easy to switch embossing specifications, high flexibility in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Cross-sectional perspective view of the embossing roller structure with the mandrel fixed;

[0022] Figure 2 Exploded view of the embossing roller structure with the mandrel fixed;

[0023] Figure 3 Structural schematic diagram of the embossing roller structure with the mandrel fixed.

[0024] Reference numerals in the drawings:

[0025] 1. Outer roller; 101. Embossing layer; 2. Inner mandrel; 201. Limiting ring; 202. Limiting thread; 3. Driving wheel; 301. External tooth pattern; 302. Synchronous belt; 303. Rotating motor; 4. Plug baffle; 5. Bearing seat; 6. Rotating bearing; 7. Positioning bolt; 8. Limiting baffle; 9. Oil seal. Detailed implementation manners

[0026] In order to solve the problem that although the embossing uneven patterns on the surface of the commonly used embossing rollers on the market can be disassembled, maintained and replaced, the design is relatively complex, the disassembly, assembly and alignment operations are time-consuming, and it is inconvenient to use, an embossing roller structure with a fixed mandrel is provided.

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that the terms such as "inner", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships shall also be regarded as the scope of implementation of the present invention without substantial change in the technical content. This is stated first for clarification.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0030] As Figures 1-3 shown, this embodiment provides a core shaft fixed embossing roller structure, including an outer roller 1 and an inner core shaft 2. An embossing layer 101 is arranged around the outer wall of the outer roller 1. A driving wheel 3 is coaxially connected in series at one end of the outer roller 1, and a plug baffle 4 is coaxially connected in series at the other end. The inside of the outer roller 1 is hollow, and a bearing seat 5 is arranged inside the outer roller 1. A rotary bearing 6 is installed in the bearing seat 5. The inner core shaft 2 is fixedly connected in series in the rotary bearing 6, and the inner core shaft 2 penetrates through the driving wheel 3 and the plug baffle 4.

[0031] Since the outer roller 1 with the embossing layer 101 is driven by the driving wheel 3 to rotate, and there is a rotary bearing 6 between the outer roller 1 and the inner core shaft 2, the outer roller 1 can continuously rotate on the fixed inner core shaft 2, and the inner core shaft 2 only needs to provide a supporting function. The design of integrally connecting the rotary bearing 6 and the outer roller 1 on the inner core shaft 2 is convenient for installation and disassembly, and the alignment is fast. There is no need to spend time on the alignment adjustment during assembly. In addition, the cooperation of the driving wheel 3 and the plug baffle 4 can effectively ensure the stable installation of the outer roller 1 on the inner core shaft 2 and avoid sliding and deviation.

[0032] External tooth patterns 301 are arranged around the outside of the driving wheel 3. The external tooth patterns 301 are meshed with a synchronous belt 302, and the synchronous belt 302 is drivingly connected to a rotation module. Among them, the rotation module can adopt a commonly used rotation motor 303 on the market. The rotation motor 303 equipped with the synchronous belt 302 is a commonly used rotation power source on the market, which is convenient for installation and disassembly, and is convenient for alignment debugging and switching the size of the embossing roller to be driven.

[0033] Both ends of the outer roller 1 are provided with bolt seats (not marked in the figure). The driving wheel 3 and the plug baffle 4 are both penetrated by positioning bolts 7, and the positioning bolts 7 are docked with the threaded seats. The driving wheel 3 and the plug baffle 4 are both installed by the positioning bolts 7, which is convenient for installation and disassembly.

[0034] On the inner core shaft 2, a limit ring 201 is provided corresponding to the inner rings of the bearing seat 5 and the rotary bearing 6. The diameter of the limit ring 201 is larger than the inner ring of the rotary bearing 6. A limit baffle 8 is strung on the inner core shaft 2, and the rotary bearing 6 is strung between the limit ring 201 and the limit baffle 8. The cooperation of the limit ring 201 and the limit baffle 8 can effectively improve the positioning stability of the rotary bearing 6 and avoid shaking and offset during operation.

[0035] A string nut (not marked in the figure) is provided in the middle of the limit baffle 8, and a limit thread 202 is provided on the inner core shaft 2 corresponding to the string nut. In actual use, a nut part can be directly selected as the limit baffle 8, which is convenient for installation and disassembly and can also take into account the positioning stability.

[0036] Bearing seats 5 are symmetrically arranged at both inner ends of the outer roller 1, and limit rings 201 and limit baffles 8 are provided at both ends of the inner core shaft 2 corresponding to the bearing seats 5. The symmetrically designed rotary bearings 6 can improve the rotation stability of the outer roller 1, avoid shaking and offset during operation, and thus reduce the frictional resistance and operating noise during equipment operation.

[0037] Oil seals 9 are provided in the middle of the driving wheel 3 and the plug baffle 4, and the inner core shaft 2 passes through the oil seals 9. The oil seals 9 can improve the sealing performance inside the outer roller 1 and prevent various pollutants from entering the roller interior. In addition, the oil seals 9 can avoid frictional wear between the continuously rotating driving wheel 3 and the plug baffle 4 and the inner core shaft 2, and reduce the operating resistance and operating noise of the equipment.

[0038] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. That is, all equal changes and modifications made according to the scope of this application should still fall within the scope covered by the present invention.

Claims

1. An embossing roller structure with a fixed mandrel, characterized in that: It includes an outer roller and an inner core shaft. The outer wall of the outer roller is surrounded by an embossing layer. One end of the outer roller is coaxially connected with a driving wheel, and the other end is coaxially connected with a plug baffle. The inner side of the outer roller is hollow. A bearing seat is provided on the inner side of the outer roller. A rotating bearing is installed in the bearing seat. The inner core shaft is fixedly connected in series in the rotating bearing, and the inner core shaft passes through the driving wheel and the plug baffle.

2. The embossing roller structure with a fixed mandrel according to claim 1, characterized in that: The outer side of the driving wheel is surrounded by an external tooth pattern, and the external tooth pattern is meshed with a synchronous belt, and the synchronous belt is driven and connected to a rotating module.

3. The embossing roller structure with a fixed mandrel according to claim 1, characterized in that: Bolt seats are arranged at both ends of the outer roller, and positioning bolts are passed through the driving wheel and the plug baffle, and the positioning bolts are butted with the threaded seats.

4. The embossing roller structure with a fixed mandrel according to claim 1, characterized in that: A limiting ring is arranged on the inner core shaft corresponding to the bearing seat and the inner ring of the rotary bearing, and the diameter of the limiting ring is larger than the inner ring of the rotary bearing.

5. The embossing roller structure with a fixed mandrel according to claim 4, characterized in that: The inner core shaft is connected in series with a limit baffle, and the rotary bearing is connected in series between the limit ring and the limit baffle.

6. The embossing roller structure with a fixed mandrel according to claim 5, characterized in that: A serial nut is arranged in the middle of the limit baffle, and a limit thread is arranged on the inner core shaft corresponding to the serial nut.

7. The embossing roller structure with a fixed mandrel according to claim 5, characterized in that: The inner two ends of the outer roller are symmetrically provided with bearing seats, and the two ends of the inner core shaft are provided with limiting rings and limiting baffles corresponding to the bearing seats.

8. The embossing roller structure with a fixed mandrel according to claim 1, characterized in that: The middle parts of the driving wheel and the plug baffle are both provided with oil seals, and the inner core shaft is connected with the oil seals.

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