CN217257839U

CN217257839U - Sponge roller and forming die

Info

Publication number: CN217257839U
Application number: CN202122125861.0U
Authority: CN
Inventors: 周杰; 万科学
Original assignee: Dishe Intelligent Technology Wuhan Co Ltd
Current assignee: Dishe Intelligent Technology Wuhan Co Ltd
Priority date: 2021-09-05
Filing date: 2021-09-05
Publication date: 2022-08-23
Anticipated expiration: 2031-09-05

Abstract

The utility model is suitable for a cleaning appliance technical field. The utility model discloses a sponge cylinder and forming die, wherein this sponge cylinder includes the cylinder body and installs in the cylindric sponge of cylinder body circumference surface, cylindric sponge surface is equipped with a set of wave cambered surface structure along the radial square cross-section of cylinder body at least, and this wave cambered surface is spiral or arc along cylindric sponge length direction. Because the sponge cylinder surface is equipped with at least and is equipped with a set of wave cambered surface structure, can both improve the wearability through this wave cambered surface structure, can avoid the long-time friction increase that uses of sponge cylinder when using for a long time to lead to the consumption to increase again, and the improvement user uses and experiences the variation. Meanwhile, the areas exposed out of the inner layer of the roller sponge are distributed on the surface of the roller sponge, so that low water absorption rate caused by surface compactness of the sponge roller can be avoided, and the cleaning efficiency is improved.

Description

Sponge roller and forming die

Technical Field

The utility model relates to a cleaning device technical field especially relates to a sponge cylinder and forming die.

Background

The roller is used on the cleaning device integrating the mopping and sweeping, the roller is usually a sponge roller made of PVA material, and the sponge roller made of PVA material is used as a cleaning component on the cleaning device integrating the mopping and sweeping by utilizing the characteristics of high density, high water absorption, low cost, easy acquisition and the like of the sponge roller. After the device is installed, the roller is extruded and the like by using a specific mechanical structure, so that the effect of cleaning and reusing is achieved.

Sponge cylinder surface is usually after the shaping, need be through simple polishing, be formed with the surface of certain roughness, in addition the sponge itself has certain porosity, in the use clean integrative cleaning device's of sweeping in-process, the sponge cylinder surface (the part in non-space) of a bit of surface roughness slightly, can be worn more and more levelly and more smoothly at long-term friction in-process with treating the clearance surface, sponge material can be bigger and more with the actual area of contact who treats the clearance surface, resistance when sweeping integrative cleanness will be bigger and more, increase the equipment and use energy consumption, shorten battery duration, and user experience also can be along with the live time increase degree is more and more poor. How to provide a wear-resisting sponge cylinder, improve user experience and increase and worsen with the live time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a sponge cylinder and forming die, and wherein this sponge cylinder can avoid the sponge cylinder to use the frictional force increase for a long time to lead to consumption increase and user to use to experience the variation in quality.

In order to solve the technical problem, the utility model provides a sponge roller, this sponge roller include cylinder body and install in the cylindric sponge of cylinder body circumference surface, cylindric sponge surface is equipped with a set of wave cambered surface structure along the radial square cross-section of cylinder body at least, and this wave cambered surface structure includes the wave cambered surface, and this wave cambered surface is spiral, arc or bar along cylindric sponge length direction.

Further, the wavy cambered surface structure comprises three groups.

Furthermore, each group of the wave-shaped arc surface structure comprises two wave-shaped arc surfaces and a sponge surface arranged between the two wave-shaped arc surfaces.

Further, the wavy cambered surface structure is uniformly distributed in the circumferential direction of the surface of the cylindrical sponge.

Furthermore, the wavy cambered surface is arranged along the length direction of the roller body.

Furthermore, each wavy cambered surface is formed by a plurality of convex strips arranged at intervals, and a groove is formed between every two adjacent convex strips.

Further, the depth of the groove is 1-2mm, and the width of the groove is more than 0.5 mm.

Further, the width of the convex strip is larger than 0.5 mm.

Further, the width of the convex strip is the same as that of the groove.

Further, the area of the wave-shaped cambered surface occupies 1/4-1/3 of the circumferential surface of the cylindrical sponge.

Furthermore, the wave-shaped cambered surface is spiral or arc-shaped along the length direction of the cylindrical sponge.

Furthermore, the surface of the roller sponge is distributed with inner layer areas exposed out of the inner layer of the roller sponge, and the inner layer areas are distributed at intervals.

The utility model also provides a sponge cylinder forming die, this sponge cylinder forming die include, preparation sponge cylinder's die cavity, the die cavity inner wall has the sponge cylinder structure.

The roller body with the sponge roller structure and the cylindrical sponge arranged on the circumferential surface of the roller body are further characterized in that the cylindrical sponge surface is at least provided with a group of wavy cambered surface structures along the radial square section of the roller body.

Further, the wavy cambered surface structure comprises three groups of wavy cambered surface structures.

Further, each group of the wavy cambered surface structures comprises two wavy cambered surfaces and a sponge surface arranged between the two wavy cambered surfaces.

Further, the wavy cambered surface structures are uniformly distributed in the circumferential direction of the surface of the cylindrical sponge.

Further, the width of the convex strip is larger than 0.5 mm.

Further, the width of the convex strip is the same as that of the groove.

Further, the wavy cambered surface is spiral or arc-shaped along the length direction of the cylindrical sponge.

The utility model also provides a sponge roller forming method, which comprises the following steps,

a step of forming a sponge roller, wherein at least one group of wavy cambered surface structures are formed on the sponge roller through a special die;

polishing the surface of the sponge roller, namely polishing the surface film on the surface of the sponge roller to partially abrade the surface film and expose the inner layer of the sponge roller;

and a sponge roller cutting step, namely cutting the sponge roller with the polished surface, and chamfering the two ends of the sponge roller by the length.

Further, the chamfer length is 3-7mm, and the chamfer angle ranges from 30-70 degrees.

Further, in the sponge roller surface polishing step, the interval between sponge inner layer areas distributed on the surface of the sponge roller is 0.2-1.0 mm.

Further, the step of polishing the surface of the sponge roller further comprises the step of polishing each group of wavy cambered surface structures.

Further, the step of polishing each group of the wavy cambered surface structures comprises forming exposed sponge inner layer structures at intervals on the wavy cambered surfaces.

Further, the wavy cambered surface is arranged along the length direction of the roller body.

Further, the width of the convex strip is larger than 0.5 mm.

Further, the width of the convex strip is the same as that of the groove.

Further, when the plurality of wavy arc surfaces are provided, each wavy arc surface is uniformly distributed in the circumferential direction of the surface of the cylindrical sponge.

The utility model relates to a sponge cylinder, forming die and forming method, wherein this sponge cylinder includes the cylinder body and installs in the cylindric sponge of cylinder body circumferential surface, cylindric sponge surface is equipped with a set of wave cambered surface structure along the radial square cross-section of cylinder body at least. Because the sponge cylinder surface is equipped with at least and is equipped with a set of wave cambered surface structure, can both improve the wearability through this wave cambered surface structure, can avoid again that the long-time friction increase of using of sponge cylinder leads to the consumption to increase when using for a long time, improves the user and uses experience variation.

Drawings

In order to illustrate more clearly the embodiments of the invention or the solutions of the prior art, reference will now be made briefly to the attached drawings that are needed in the description of the embodiments or the prior art, it being understood that the drawings in the description illustrate only some embodiments of the invention and are therefore not to be considered limiting of its scope, and that, to a person skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of an embodiment of the sponge roller of the present invention.

Fig. 2 is a schematic structural view of an embodiment of the roller sponge forming mold of the present invention.

Fig. 3 is a schematic view of fig. 2 in an axial sectional view.

Fig. 4 is a schematic flow chart of an embodiment of the roller sponge forming method of the present invention.

Fig. 5a is a schematic structural view of the drum sponge after being molded and polished.

Fig. 5b is a schematic diagram of the structure of the drum sponge after being polished to enlarge 20 times.

Fig. 5c is a schematic diagram of the structure of the drum sponge after being polished to enlarge 100 times.

Fig. 5d is a schematic diagram of the structure of the drum sponge after being polished according to the present invention, wherein the structure is enlarged by 200 times.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The following claims are presented in conjunction with the detailed description of the invention and the accompanying drawings, it being understood that the embodiments described are only some embodiments of the invention and not all embodiments. Based on the embodiments of the present invention, those skilled in the art can find out all other embodiments without creative efforts, and all the embodiments also belong to the protection scope of the present invention.

It should be understood that in the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., are used herein based on the orientation and position shown in the drawings or the orientation and position of the product, and are not intended to limit the present invention, but to simplify the description of the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.

Furthermore, the use of ordinal numbers such as "first", "second", etc., in the present application is for distinguishing purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in at least one of the features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.

In the present invention, unless explicitly specified or limited otherwise, the terms "mounting," "setting," "connecting," "fixing," "screwing" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be relatively fixed, or the components may be physically fixed and connected, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements may be connected to each other or may be in an interaction relationship with each other, and unless otherwise explicitly limited by the specification, the specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations, except that the corresponding function or effect cannot be achieved in other understanding.

The present invention relates to a control technique or unit that is conventional for those skilled in the art, such as a controller and a control circuit, and the control circuit of the controller can be implemented by those skilled in the art using existing techniques, such as simple programming. Software or programs related to the implementation of the control result in cooperation with hardware, such as software or program control procedures related to the implementation of the control result, which are not described in detail in the specification, belong to the technical field of the prior art or the routine of a person with ordinary skill in the art. The power also adopts belong to this field of prior art, and the utility model discloses main utility model technical point lies in improving mechanical device, so the utility model discloses no longer explain in detail concrete circuit control relation and circuit connection.

The present disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described in the present invention. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in FIG. 1, the utility model provides an embodiment of a sponge roller.

The sponge roller comprises a roller body 10 and a cylindrical sponge 11 arranged on the circumferential surface of the roller body 10, wherein a group of wave-shaped cambered surface structures are at least arranged on the surface 110 of the cylindrical sponge 11 along the radial square section of the roller body.

Specifically, the wavy cambered surface structure comprises three groups of wavy cambered surface structures. Each group of the wave-shaped cambered surface structures comprises a first wave-shaped cambered surface 112 and a second wave-shaped cambered surface 113 arranged between the two first wave-shaped cambered surfaces 112. The first wavy arc surface 112 and the second wavy arc surface 113 are uniformly distributed in the circumferential direction of the surface of the cylindrical sponge 11. The wave-shaped cambered surface structure is provided with a wave-shaped cambered surface along the axial length direction of the roller body 10 along the length direction.

Each wavy arc surface is formed by a plurality of convex strips arranged at intervals, grooves are arranged between every two adjacent convex strips, the number of the convex strips and the number of the grooves are arranged according to requirements, and the first wavy arc surface 112 is formed by distributing two convex strips and three grooves at intervals in the embodiment; the second wavy arc surface 113 is formed by three convex strips and four grooves which are distributed at intervals.

Because the wavy cambered surface structure is distributed on the surface of the sponge roller, when the sponge roller is used, the wavy cambered surface structure and the cleaning surface generate larger friction force, so that garbage is easier to clean. Meanwhile, the clearance between each adjacent first wavy cambered surface 112 and each adjacent second wavy cambered surface 113 is different, when the roller works, the surface of the roller and the cleaning surface form friction force and clearance change, and stubborn garbage is easier to clean. Meanwhile, due to the fact that the grooves exist, gaps are reserved in the grooves when the top of the protrusions is compressed, when a small amount of liquid is in the cleaning surface, the liquid can be collected and taken away through the bottom space of the grooves, and therefore the carrying capacity of the sponge roller for the liquid is improved.

The groove structure can also have better carrying effect on granular garbage, thereby being capable of adapting to different garbage cleaning. And the contact surface of the roller contacting the ground is changed from the original plane into the combination of the surface and the line, and the line is scraped for more than two times at the same time at the same position on the ground through the gap between the line and the line, so that the cleaning force is increased. In addition, the whole contact area with the ground is reduced, the friction force is reduced, the comfort of mopping the ground is improved, and the power consumption is indirectly reduced.

Through tests, the depth of the groove (not shown in the attached drawing) is 1-2mm, the width of the groove is larger than 0.5mm, the width of the convex strip is larger than 0.5mm, and the cleaning effect is better. The width of the raised strips is the same as that of the grooves, so that the cleaning effect can be further improved.

According to the requirement, the area of the wave-shaped cambered surface occupies 1/4-1/3 of the circumferential surface of the cylindrical sponge, and the cleaning effect is the best. According to the requirement, the wavy cambered surface is spirally or arcuately arranged along the length direction of the cylindrical sponge 11, so that only part of the contact surface is contacted with the cleaning contact surface during cleaning, the working load of a motor on the roller can be reduced, and the cleaning effect is not influenced.

According to the requirement, the sponge inner layer exposed out of the roller is uniformly distributed on the surface area of the sponge roller except the wavy cambered surface structure, as shown in figures 5a-5 d. Can further reduce cylinder sponge surface friction, increase the transport rubbish ability simultaneously to further improve clean efficiency. Expose the holistic roughness of cylinder sponge and make the holistic roughness of cylinder sponge increase simultaneously, have the utilization to stubborn rubbish clearance.

As shown in fig. 2-3, the present invention further provides an embodiment of a sponge roller forming mold.

This sponge cylinder forming die includes, is used for fixed cylinder axle core 21's the fixed lid of controlling during sponge design sleeve 20 of preparation cylinder sponge and the shaping, sponge design sleeve 20 is equipped with the die cavity that the diameter is greater than cylinder axle core, controls fixed lid and fixed back with sponge design sleeve 20 and cylinder axle core 21, makes cylinder axle core surface and the same cylinder sponge of die cavity interval become the die cavity, die cavity inner wall has the sponge cylinder structure, and die cavity inner wall is equipped with along the radial square cross-section of cylinder and is equipped with a set of wave cambered surface structure at least promptly for the structure in cylinder sponge surface formation above-mentioned embodiment of forming process.

Specifically, the left fixing cover 23 and the right fixing cover 22 are respectively provided with two fixing steps, namely a first fixing step 231 and a second fixing step 231, wherein the first fixing step 231 is fixed with the roller shaft core 21 and is positioned around the shaft center of the sponge setting sleeve 20, and the second fixing step 232 is fixed with the sponge setting sleeve 20. The first fixing step 231 and the second fixing step 231 are coaxially disposed. A sealing ring (not shown in the drawings) is arranged between the second fixing step 231 and the sponge shaping sleeve 20, so that the phenomenon that the sponge is foamed and exposed to affect the appearance and the subsequent processing process during the forming process is avoided.

The wave-shaped cambered surface structure comprises three groups of wave-shaped cambered surface structures. Each group of the wave-shaped cambered surface structures comprises a first wave-shaped cambered surface 112 and a second wave-shaped cambered surface 113 arranged between the two first wave-shaped cambered surfaces 112. The first wavy arc surface 112 and the second wavy arc surface 113 are uniformly distributed in the circumferential direction of the surface of the cylindrical sponge 11. The wave-shaped cambered surface structure is provided with a wave-shaped cambered surface along the axial length direction of the roller body 10 along the length direction.

Each wavy arc surface is formed by a plurality of raised lines arranged at intervals, grooves are arranged between every two adjacent raised lines, the number of the raised lines and the number of the grooves are arranged according to needs, and the first wavy arc surface 112 is formed by distributing two raised lines and three grooves at intervals in the embodiment; the second wavy arc surface 113 is formed by three convex strips and four grooves which are distributed at intervals.

Because the wavy cambered surface structure is distributed on the surface of the sponge roller, when the sponge roller is used, the wavy cambered surface structure and the cleaning surface generate larger friction force, so that garbage is easier to clean. Meanwhile, the gap between each adjacent first wavy arc surface 112 and the second wavy arc surface 113 is different, when the roller works, the surface of the roller and the cleaning surface form friction force and gap change, and stubborn garbage can be cleaned more easily.

According to the requirement, the surface of the roller sponge is distributed with inner layer areas exposed out of the inner layer of the roller sponge, and the inner layer areas are distributed at intervals. Because there is the clearance in cylinder sponge inlayer region, produce great frictional force with the cleaning surface contact, and the cylinder sponge surface is less owing to contact with the closely knit smooth top layer friction of mould formation during the foaming shaping, can improve the roughness of cylinder sponge during consequently above-mentioned setting, has the utilization to stubborn rubbish clearance.

As shown in fig. 4-5 d, the present invention further provides an embodiment of a sponge roller forming method.

The sponge roller forming method comprises the steps of,

s10, forming roller sponge, namely forming roller sponge with uniform thickness on the surface of a sponge roller (roller shaft core) through a special die, wherein the surface of the roller sponge is provided with at least one group of wavy cambered surface structures;

and S11, cutting the sponge roller to a proper length, and chamfering two ends of the sponge roller.

Specifically, in the step of roller sponge molding, the roller core 21 is placed in the sponge molding sleeve 20, the roller core 21 and the sponge molding sleeve 20 are coaxial through the left and right fixing covers and the first fixing step 231, and then the second fixing step 232 is fixed with the sponge molding sleeve 20, and the surface of the roller core 21 and the inner wall of the sponge molding sleeve 20 are uniformly spaced, and then a sponge material, such as a PVA material, is injected into a cavity (mold cavity) formed by the roller core 21 and the sponge molding sleeve 20 to perform foam molding, so that a wavy arc surface structure is formed on the surface of the roller sponge.

During the process of forming the sponge shaping sleeve 20, the sponge forms a smooth surface layer on the sponge due to the contact surface of the sponge and the mold cavity of the sponge shaping sleeve 20. Because the smooth surface layer friction of the roller sponge surface is small, the cleaning face cannot be effectively cleaned.

The roller sponge surface is at least provided with a group of wave arc surface structures, so that the wave arc surface structures can be arranged on the smooth surface layer of the roller sponge, when the sponge roller works, the side walls of the grooves between the wave crests of the wave arc surfaces on the roller sponge surface can be contacted with a cleaning surface to generate friction force, and therefore garbage, especially garbage stuck to the surface, can be conveniently and efficiently cleaned.

Since burrs and the like may exist during the sponge roller forming process by forming the roller sponge on the surface of the roller core 21, it is necessary to perform a cutting step on the sponge roller formed by the roller sponge forming in step S10 to make the sponge roller have a proper length and chamfer both ends thereof.

After the sponge roller is demoulded, a layer of film skin with the thickness of 0.2-0.5 mm is formed on the surface, and the skin grinding brings two problems: the contact area with the ground is increased, and under the equal unit pressure, the friction force is increased and exceeds the friction force required by normal mopping and cleaning; simultaneously, because the sponge surface has certain thickness and very strong tension, can be inside a confined space with the extrusion of inside sponge layer, the elasticity that the constraint part material itself has, and the cylinder sponge during operation, the extrusion sponge that need not stop, therefore rebound speed is higher with the life-span requirement, also can release elasticity through polishing, promotes the wholeness ability.

Before the sponge roller is cut in the step S11, the roller sponge surface is polished, and the sponge roller surface area except the wavy arc surface structure is polished to partially wear the roller sponge surface layer, and the roller sponge surface layer is formed with the exposed roller sponge inner layer uniformly distributed, as shown in fig. 5a-5 d. The friction force on the surface of the roller sponge can be further reduced, and the garbage carrying capacity is increased, so that the cleaning efficiency is further improved.

According to the requirement, the step of polishing each group of the wave-shaped cambered surface structures comprises the step of forming exposed sponge inner layer structures distributed at intervals on the wave-shaped cambered surfaces.

The wave cambered surface structure, the wave cambered surface structure includes three group's wave cambered surface structures. Each group of the wave-shaped cambered surface structures comprises a first wave-shaped cambered surface 112 and a second wave-shaped cambered surface 113 arranged between the two first wave-shaped cambered surfaces 112. The first wavy arc surface 112 and the second wavy arc surface 113 are uniformly distributed in the circumferential direction of the surface of the cylindrical sponge 11. The wave-shaped cambered surface structure is provided with a wave-shaped cambered surface along the axial length direction of the roller body 10 along the length direction.

Each wavy arc surface is formed by a plurality of convex strips arranged at intervals, grooves are arranged between every two adjacent convex strips, the number of the convex strips and the number of the grooves are arranged according to requirements, and the first wavy arc surface 112 is formed by distributing two convex strips and three grooves at intervals in the embodiment; the second wavy arc surface 113 is formed by distributing three convex strips and four grooves at intervals.

Because the wavy cambered surface structure is distributed on the surface of the sponge roller, when the sponge roller is used, the wavy cambered surface structure and the cleaning surface generate larger friction force, so that garbage is easier to clean. Meanwhile, the clearance between each adjacent first wavy cambered surface 112 and each adjacent second wavy cambered surface 113 is different, when the roller works, the surface of the roller and the cleaning surface form friction force and clearance change, and stubborn garbage is easier to clean.

Through tests, the depth of the groove (not shown in the attached figures) is 1-2mm, the width of the groove is larger than 0.5mm, and the width of the raised line is larger than 0.5mm, so that the cleaning effect is better. The width of the raised strips is the same as that of the grooves, so that the cleaning effect can be further improved.

According to the requirement, the surface of the roller sponge is distributed with inner layer areas exposed out of the inner layer of the roller sponge, and the inner layer areas are distributed at intervals. Because there is the clearance in cylinder sponge inlayer region, produce great frictional force with the cleaning surface contact, and the cylinder sponge surface is less owing to contact with the closely knit smooth top layer friction of mould formation during foam molding, can improve the roughness of cylinder sponge during consequently above-mentioned setting, has the utilization to stubborn rubbish clearance.

In the sponge roller surface polishing step, the interval between sponge inner layer areas distributed on the surface of the sponge roller is 0.2-1.0 mm. The length of the chamfer is 3-7mm, and the range of the chamfer angle is 30-70 degrees.

The sponge roller surface polishing step further comprises a polishing step of each group of wave-shaped cambered surface structures, and the polishing step of each group of wave-shaped cambered surface structures comprises exposing sponge inner layer structures distributed at intervals on the wave-shaped cambered surfaces.

Because the groove exists, when the compressed area of the top of the protrusion is formed, the groove is separated to form a gap, when a small amount of liquid is in the cleaning surface, the liquid can be collected and taken away through the space at the bottom of the groove, and therefore the carrying capacity of the sponge roller for the liquid is improved.

The groove structure can also have better carrying effect on granular garbage, thereby being capable of adapting to different garbage cleaning. And the contact surface of the roller contacting the ground is changed from the original plane into the combination of the surface and the lines, and the lines are scraped for more than two times at the same time at the same position on the ground through the gaps between the lines, so that the cleaning force is increased. In addition, the whole contact surface with the ground is reduced, the friction force is reduced, the comfort of mopping the ground is improved, and the power consumption is indirectly reduced.

Within the motion track of cylinder, protruding profile of tooth structure constantly rotates and to clear up the remaining tiny rubbish of whole track, and when the water bar that passes through at every turn simultaneously, also indirectly reduced extruded intensity, when keeping the dryness fraction after the extrusion, reduced extruded consumption.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described embodiments, or equivalents may be substituted for some of the features of the embodiments, without departing from the spirit or scope of the present invention.

Claims

1. The utility model provides a sponge roller, includes the cylinder body and installs in the cylindric sponge of cylinder body circumference surface, its characterized in that, cylindric sponge surface is equipped with a set of wave arc surface structure along the radial square cross-section of cylinder body at least, and this wave arc surface structure includes the wave cambered surface, and this wave cambered surface is spiral, arc or bar along cylindric sponge length direction.

2. The sponge roller as claimed in claim 1 wherein the undulating cambered surface structure comprises three sets.

3. The sponge roller as claimed in claim 1 wherein each set of undulating arcs comprises two undulating arcs and a sponge surface disposed between the two undulating arcs.

4. The sponge roller as claimed in claim 2 wherein the wavy cambered surface structure is uniformly distributed in the circumferential direction of the surface of the cylindrical sponge.

5. The sponge roller as claimed in claim 3 wherein the wavy arcuate surface is disposed along the length of the roller body.

6. The sponge roller as claimed in claim 5 wherein each undulating arcuate surface is formed by a plurality of spaced ribs with grooves between adjacent ribs.

7. The sponge roller as claimed in claim 6 wherein the grooves have a depth of 1-2mm and a width of greater than 0.5 mm.

8. The sponge roller as claimed in claim 7 wherein the ribs are greater than 0.5mm wide.

9. The sponge roller as claimed in claim 8 wherein the ribs are the same width as the grooves.

10. The sponge roller as claimed in claim 5 wherein the wave-like arc surface area occupies from 1/4 to 1/3 of the cylindrical sponge circumferential surface.

11. The sponge roller as claimed in claim 3 wherein the wave-like arc surface is spiral or curved along the length of the cylindrical sponge.

12. The sponge roller as claimed in claim 1 wherein the surface of the roller sponge has inner regions exposed to the inner layer of the roller sponge, the inner regions being spaced apart.

13. A sponge roller forming die, which comprises a die cavity for manufacturing a sponge roller, and is characterized in that the inner wall of the die cavity is provided with the sponge roller structure as claimed in any one of claims 1 to 12.