CN220322329U - Meter roller and coating equipment - Google Patents

Abstract

The utility model discloses a metering roller and coating equipment, the metering roller comprises a roller body and a metering assembly, the metering assembly comprises a metering disc and a sensor, the metering disc is sleeved on the periphery of one end of the roller body, the sensor is opposite to the metering disc, the metering roller further comprises two oppositely arranged air bearing assemblies, the two air bearing assemblies are respectively arranged at two ends of the roller body, each air bearing assembly comprises a mounting seat and an air bearing sleeve arranged in the mounting seat, the air bearing sleeves of the two air bearing assemblies are respectively sleeved on the periphery of the two ends of the roller body, a sleeve inner cavity is arranged in the air bearing sleeve, a sleeve air pipe joint is arranged on the outer peripheral surface of the air bearing sleeve, the inside of the sleeve air pipe joint is communicated with the sleeve inner cavity, one end, far away from the air bearing sleeve, of the sleeve air pipe joint extends out of the mounting seat and is used for being connected with air supply equipment, a plurality of sleeve air outlet holes are uniformly distributed on the inner peripheral surface of the air bearing sleeve, and the plurality of sleeve air outlet holes are all communicated with the sleeve inner cavity. The utility model can ensure the accuracy of metering.

Description

Meter roller and coating equipment

Technical Field

The utility model relates to the technical field of coating, in particular to a metering roller and coating equipment.

Background

The metering roller of the existing coating equipment generally comprises a roller body, a metering assembly and two ball bearings. The meter rice subassembly includes meter rice dish and sensor, meter rice dish cover is established in the one end periphery of roll body and can rotate along with the roll body is synchronous, and the sensor is relative with meter rice dish. The two ball bearings are respectively sleeved on the peripheries of the two ends of the roller body and are respectively used for rotatably supporting the two ends of the roller body. Because two ball bearings are in direct contact with the two ends of the roller body, the friction force between the ball bearings and the roller body is larger, so that the resistance to the roller body is larger, the running tension of the coated base material (namely the pole piece) is small, and when the base material bypasses the roller body, the phenomena that the rotation speed of the roller body and the metering disc is asynchronous with the running speed of the base material, slipping and the like can occur, thus the metering accuracy of the metering assembly to the base material can be influenced, finished product deficiency is easily caused, and the product quality is influenced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the metering roller and the coating equipment, which can ensure the accuracy of metering, avoid the defect of finished products and ensure the quality of the products.

The technical scheme adopted for solving the technical problems is as follows:

the first aspect of the utility model provides a metering roller, which comprises a roller body and a metering assembly, wherein the metering assembly comprises a metering disc and a sensor, the metering disc is sleeved on the periphery of one end of the roller body, the sensor is opposite to the metering disc, the metering roller further comprises two air bearing assemblies which are oppositely arranged, the two air bearing assemblies are respectively arranged at two ends of the roller body, each air bearing assembly comprises a mounting seat and an air bearing shaft sleeve which is arranged in the mounting seat, the air bearing sleeves of the two air bearing assemblies are respectively sleeved on the periphery of the two ends of the roller body, the metering disc is positioned between the mounting seat of one air bearing assembly and the center of the roller body, an inner cavity is arranged in the air bearing sleeve, an air pipe joint is arranged on the periphery of the air bearing sleeve, the inner part of the air bearing sleeve is communicated with the inner cavity of the air bearing sleeve, one end, far away from the air bearing sleeve, of the air bearing joint extends out of the mounting seat and is used for being connected with air supply equipment, the air bearing sleeves are uniformly distributed with a plurality of air outlet holes along the periphery of the air bearing sleeve, and the air outlet holes are uniformly distributed on the periphery of the air bearing sleeve.

As the preferable technical scheme, at least two elastic sealing rings are arranged between the air-floating shaft sleeve and the inner wall of the mounting seat, and the shaft sleeve air pipe joint is positioned between the two elastic sealing rings.

As the preferable technical scheme, air bearing assembly still includes adjusting screw and plane air bearing, the one end outer wall that keeps away from the roll body center of mount pad is equipped with the screw hole, screw-in has in the screw hole adjusting screw's head is located the outside of mount pad, adjusting screw's end is located the inside of mount pad, adjusting screw's end with press from both sides between the tip of the corresponding one end of roll body is equipped with plane air bearing, plane air bearing's bearing air pipe joint is used for being connected with air supply equipment.

As the preferable technical scheme, the tail end of the adjusting screw is spherical, one end, far away from the center of the roller body, of the planar air bearing is provided with a groove, and the tail end of the adjusting screw is matched and propped against the groove of the corresponding planar air bearing.

As the preferable technical scheme, in the two air bearing assemblies, an adjusting screw of one air bearing assembly is provided with an adjusting nut in a threaded fit manner at the head part, an elastic piece is sleeved on the outer periphery of the adjusting screw, the elastic piece is positioned in a corresponding mounting seat, one end of the elastic piece is connected with the inner wall of one end, far away from the center of the roller body, of the corresponding mounting seat, and the other end of the elastic piece is connected with a boss of the adjusting screw.

As the preferable technical scheme, the air bearing assembly further comprises a bottom frame, the mounting seat is arranged at the top end of the bottom frame, and the sensor is arranged on the bottom frame of one of the air bearing assemblies through the sensor bracket.

As the preferable technical scheme, a limiting ring is arranged in one end, close to the center of the roller body, of the mounting seat, and one end, close to the center of the roller body, of the air floatation shaft sleeve is propped against the limiting ring.

As an optimized technical scheme, the meter rice tray is provided with a plurality of through holes, the through holes are annularly arranged at intervals around the center of the meter rice tray, and the sensor is opposite to one of the through holes of the meter rice tray.

As the preferable technical scheme, the air supporting axle sleeve includes first part and cover is established the second part of first part periphery, first part cover is established the periphery of the corresponding one end of roll body, the inner peripheral face of first part distributes has a plurality of axle sleeve ventholes, the inner peripheral face of second part has the cavity, the axle sleeve venthole with the cavity intercommunication, the outer peripheral face of second part is equipped with axle sleeve tracheal tube connects, axle sleeve tracheal tube connects with the cavity intercommunication, the cavity with form between the first part axle sleeve inner chamber.

A second aspect of the utility model provides a coating apparatus comprising a metering roll according to the above-described aspect.

The beneficial effects of the utility model are as follows: according to the utility model, through the two air bearing assemblies, when the roller body is practically applied, the coated substrate bypasses, compressed air can be respectively introduced into the inner cavities of the corresponding air bearing sleeves through the sleeve air pipe joints of the two air bearing sleeves by the air supply equipment, the introduced compressed air can flow out through the corresponding plurality of sleeve air outlet holes, a layer of uniform and stable high-rigidity air film can be formed on the inner peripheral surface of the corresponding air bearing sleeve by the air flowing out of the plurality of sleeve air outlet holes, the roller body can be supported by the air films formed by the air bearing sleeves of the two air bearing assemblies, so that the roller body can rotate in a suspended state, the direct contact with the roller body can be avoided, the friction force between the roller body and the roller body is greatly reduced, the resistance to the roller body is reduced, the rotation speed of the roller body and the meter disc is ensured to be synchronous with the running speed of the substrate, the meter counting accuracy of the substrate is improved, the finished product air is prevented from being caused, and the product quality is ensured.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a metering roll according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the metering roll shown in FIG. 1;

FIG. 3 is an exploded view of the metering roll of FIG. 1;

FIG. 4 is a schematic view of the mounting base of the metering roll of FIG. 1;

FIG. 5 is a schematic cross-sectional view of an air bearing sleeve of the metering roll of FIG. 1;

FIG. 6 is a schematic view of the air bearing sleeve of the metering roller of FIG. 1;

fig. 7 is a schematic structural view of an alternative to the air bearing sleeve of the metering roll shown in fig. 1.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

Referring to fig. 1 to 4, a metering roller according to an embodiment of the present utility model includes a roller body 10, two air bearing assemblies 20 and a metering assembly 40. A metering assembly 40 is provided at one end of the roll body 10 for metering the length of the substrate passing around the roll body 10. The two air bearing assemblies 20 are respectively arranged at two ends of the roller body 10 and are opposite to each other. The two air bearing assemblies 20 are used to provide rotational support to the ends of the roller body 10, respectively. Meter subassembly 40 is positioned adjacent one of air bearing assemblies 20.

The metering assembly 40 includes a metering disc 42, a sensor 43, and a sensor bracket 432. The meter rice tray 42 is sleeved on the periphery of one end of the roller body 10. The metering disc 42 is located between the air bearing assembly 20 and the center of the roll body in close proximity thereto. The meter tray 42 is provided with a plurality of through holes 422, and the through holes 422 are arranged at intervals in a ring shape around the center of the meter tray 42. The number of the through holes 422 may be set according to actual circumstances. The metering disc 42 can rotate synchronously with the roller body 10. The sensor 43 is located opposite one of the through holes 422 of the metering disc 42 and on the side of the air bearing assembly 20 adjacent thereto. The sensor 43 is arranged on the air bearing assembly 20 which is close to the sensor bracket 432, when the air bearing assembly is in practical application, the coated substrate bypasses the roller body 10, the meter counting disc 42 can synchronously rotate along with the roller body 10, the rotation number of the meter counting disc 42 can be detected through the detection of the through holes 422 by the sensor 43, the length of the substrate can be measured through the rotation number of the meter counting disc 42, and the meter counting of the substrate can be realized.

The air bearing assembly 20 comprises an air bearing sleeve 22, a mounting seat 23, an adjusting screw 24, a planar air bearing 25 and a bottom frame 26.

The air bearing sleeve 22 is arranged in the mounting seat 23. The air bearing sleeves 22 of the two air bearing assemblies 20 are respectively sleeved on the peripheries of the two ends of the roller body 10. The metering disc 42 is located between the mounting seat 23 adjacent thereto and the center of the roll body 10. The sensor 43 is located on the side of the mount 23 that is adjacent thereto. The interior of the air bearing sleeve 22 is provided with a sleeve cavity 221. The outer peripheral surface of the air-float shaft sleeve 22 is provided with a shaft sleeve hole site 222 communicated with the shaft sleeve inner cavity 221, and a shaft sleeve air pipe joint 223 is arranged in the shaft sleeve hole site 222. The interior of the sleeve air fitting 223 communicates with the sleeve interior cavity 221. The top of mount pad 23 is equipped with mounting hole 231, and mounting hole 231 communicates with the inside of mount pad 23, and the one end that the axle sleeve air pipe joint 223 was kept away from axle sleeve hole site 222 stretches out and is used for being connected with air supply equipment from mounting hole 231 of mount pad 23. The inner peripheral surface of the air-bearing sleeve 22 is uniformly provided with a plurality of sleeve air outlet holes 225 (see fig. 6 and 7) along the circumferential direction, and the plurality of sleeve air outlet holes 225 are communicated with the sleeve inner cavity 221. The mounting seat 23 is provided at the top end of the chassis 26 by a fastener such as a screw, etc., and the chassis 26 is used to be provided on the frame by a fastener such as a screw, etc., so that the setting of the metering roll on the frame can be achieved. Preferably, the chassis 26 has an L-shape, the mount 23 is disposed at the top end of the lateral portion of the chassis 26, the mount 23 is located between the vertical portion of the chassis 26 and the center of the roller body 10, and a space is provided between the mount 23 and the vertical portion of the chassis 26. The sensor bracket 432 has an L-shape, the sensor 43 is provided at the top end of the vertical portion of the sensor bracket 432, and the lateral portion of the sensor bracket 432 is provided on the lateral portion of the chassis 26 adjacent thereto.

Through the structure, when the novel high-rigidity air film meter is practically applied, the coated substrate bypasses the roller body 10, compressed air can be respectively introduced into the shaft sleeve inner cavity 221 of the corresponding air bearing shaft sleeve 22 through the shaft sleeve air pipe joint 223 of the two air bearing assemblies 20 by air supply equipment, the introduced compressed air can flow out through the corresponding plurality of shaft sleeve air outlet holes 225, a layer of uniform and stable high-rigidity air film can be formed on the inner peripheral surface of the corresponding air bearing shaft sleeve 22 by the air flowing out of the plurality of shaft sleeve air outlet holes 225, the roller body 10 can be supported by the air films respectively formed by the air bearing shaft sleeves 22 of the two air bearing assemblies 20, so that the roller body 10 can rotate in a suspended state, direct contact with the roller body 10 can be avoided, the friction force between the roller body 10 and the roller body 10 is greatly reduced, the resistance to the roller body 10 is reduced, the rotation speed of the roller body 10 and the meter-counting disc 42 is synchronous with the running speed of the substrate, namely the accuracy of the meter-counting assembly 40 on the substrate is improved, the finished product is avoided, and the quality of a product is ensured. The friction coefficient of the air bearing assembly 20 is 1/100 of that of the ball bearing, so that the resistance to the roller body 10 is small, and the metering roller is particularly suitable for occasions with small wrap angle between a base material and the roller body 10 and small tension of the base material.

In this embodiment, two elastic sealing rings 224 are disposed between the air-floating shaft sleeve 22 and the inner wall of the mounting seat 23, the shaft sleeve air pipe joint 223 is located between the two elastic sealing rings 224, when the air film supports the roller body 10, the air film can apply force to the air-floating shaft sleeve 22, and the elastic sealing rings 224 can play a role in buffering, in addition, the elastic sealing rings 224 also play a role in sealing, so that air can be prevented from flowing out from between the air-floating shaft sleeve 22 and the inner wall of the mounting seat 23. In other embodiments, the number of the elastic sealing rings 224 may be, for example, three, four, etc., and may be set according to practical situations.

The outer peripheral surface of the air-float shaft sleeve 22 is provided with two annular grooves, and two elastic sealing rings 224 are respectively arranged in the two annular grooves.

Further, an outer wall of one end of the mounting seat 23, which is far away from the center of the roller body 10, is provided with a notch 232 and a threaded hole 233. The notch 232 is located below the threaded hole 233 and communicates with the interior of the mounting block 23. The screw hole 233 corresponds to the center of the end of the corresponding end of the roller body 10. The threaded hole 233 is threadedly engaged with an adjusting screw 24. The head of the adjusting screw 24 is located outside the mount 23 and in the space between the mount 23 and the upright of the chassis 26, and the tip of the adjusting screw 24 is located inside the mount 23. A planar air bearing 25 is interposed between the tip of the adjusting screw 24 and the end of the corresponding end of the roller body 10. The planar air bearing 25 is partially located within the notch 232. A bearing air tube connector 252 of the planar air bearing 25 is positioned within the notch 232 and is adapted to be connected to an air supply.

The plane air bearing 25 is of an existing structure, specifically, the plane air bearing 25 comprises a body, a bearing air inlet hole is formed in the bottom end of the body, and the bearing air inlet hole is communicated with a bearing inner cavity of the body. The bearing air inlet hole is internally provided with the bearing air pipe joint 252. The body is close to the one end evenly distributed of roll body 10 center and has a plurality of bearing ventholes, a plurality of bearing ventholes and bearing inner chamber intercommunication. In practical application, compressed air can be introduced into the corresponding bearing inner cavity through the bearing air pipe joint 252 of the two plane air bearing 25 by the air supply equipment, the introduced compressed air can flow out through the corresponding plurality of bearing air outlet holes, a layer of uniform and stable high-rigidity air film can be formed on one end, close to the center of the roller body 10, of the corresponding body by the air flowing out of the plurality of bearing air outlet holes, the two end parts of the roller body 10 can be respectively compressed by the air films formed by the two plane air bearing 25, so that the axial limiting of the roller body 10 can be realized, the phenomenon of axial movement of the roller body 10 is avoided, and the rotating stability of the roller body 10 is improved. The position of the corresponding planar air bearing 25 can be adjusted by adjusting the screwing amount of the adjusting screw 24 of the two air bearing assemblies 20, so that the position of the roller body 10 in the axial direction can be adjusted.

Of the two air bearing assemblies 20, the adjusting screw 24 of the air bearing assembly 20 located on the right is in threaded fit with an adjusting nut 242, and an elastic member 243 is sleeved on the outer periphery of the adjusting screw, and the elastic member 243 is preferably a spring. The elastic member 243 is located inside the corresponding mounting seat 23, one end of the elastic member 243 is connected to an inner wall of one end of the corresponding mounting seat far away from the center of the roller body 10, and the other end is connected to the boss 241 of the adjusting screw 233. The elastic member 243 can adjust the pressing force of the adjusting screw 24 to the corresponding planar air bearing 25, thereby adjusting the pressing force to the two end parts of the roller body 10. By tightening the adjustment nut 242, the adjustment screw 24 may be locked to maintain the compressive force on the corresponding planar air bearing 20.

In this embodiment, the tail end of the adjusting screw 24 is spherical, a groove 253 is provided at the center of one end of the body of the planar air bearing 25, which is far away from the center of the roller body 10, the shape of the groove 253 is matched with the shape of the tail end of the adjusting screw 24, and the tail end of the adjusting screw 24 is matched with and abutted against the groove 253 of the corresponding planar air bearing 25, so that the structure is compact.

Further, a limiting ring 234 is arranged in one end, close to the center of the roller body 10, of the mounting seat 23, one end, close to the center of the roller body 10, of the air-floating shaft sleeve 22 is propped against the limiting ring 234, and the limiting ring 234 plays a limiting role, so that the air-floating shaft sleeve 22 can be prevented from moving towards the direction close to the center of the roller body 10. The stop collar 234 is preferably a snap spring.

Referring to fig. 5 and 6, in the present embodiment, the air bearing sleeve 22 includes an annular first portion 22a and an annular second portion 22b, and the second portion 22b is sleeved on the outer periphery of the first portion 22 a. The first portion 22a is sleeved on the outer periphery of the corresponding end of the roller body 10, and the plurality of shaft sleeve air outlet holes 225 are uniformly distributed on the inner peripheral surface of the first portion 22a along the circumferential direction. The inner peripheral surface of the second portion 22b is provided with a concave cavity, the shaft sleeve air outlet hole 225 is communicated with the concave cavity, the outer peripheral surface of the second portion 22b is provided with the shaft sleeve hole site 222, and the shaft sleeve hole site 222 is communicated with the concave cavity. The cavity forms the sleeve cavity 221 with the first portion 22 a. It will be appreciated that the first portion 22a may be a porous medium sleeve made of a porous medium, the porous medium is a material with a plurality of micropores with a submicron or micron pore size distributed therein, a layer of high-rigidity and uniform air film can be formed on the inner surface after the clean compressed air is introduced, the porous medium sleeve is made of porous graphite, and the second portion 22b is made of aluminum alloy, for example.

In other embodiments, referring to fig. 7, the first portion 22a is a small-hole orifice sleeve, the small-hole orifice sleeve is made of metal, such as aluminum alloy, and the inner diameter of the sleeve air outlet 225 of the small-hole orifice sleeve is, for example, 0.1-5 mm. The plurality of sleeve outlet holes 225 are divided into a plurality of rows, and the plurality of rows of sleeve outlet holes 225 are disposed at intervals along the circumferential direction of the first portion 22 a. The number of the air outlet holes 225 of the shaft sleeve can be set according to practical situations.

The utility model also provides coating equipment which comprises the metering roller.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a meter rice roller, includes the roll body and meter rice subassembly, meter rice subassembly includes meter rice dish and sensor, meter rice dish cover is established one end periphery of roll body, the sensor with meter rice dish is relative, its characterized in that still includes two air supporting bearing assemblies that are relative setting, two air supporting bearing assemblies set up respectively the both ends of roll body, air supporting bearing assemblies include the mount pad and set up air supporting axle sleeve in the mount pad, two air supporting axle sleeve of air supporting bearing assemblies overlap respectively and establish the both ends periphery of roll body, meter rice dish is located between the center of the mount pad of one of them air supporting bearing assemblies and roll body, the inside of air supporting axle sleeve is equipped with the axle sleeve inner chamber, the outer peripheral face of air supporting axle sleeve is equipped with axle sleeve tracheal coupling, the inside of axle sleeve tracheal coupling with axle sleeve inner chamber intercommunication, the one end that keeps away from of axle sleeve tracheal coupling air supporting axle sleeve stretches out outside the mount pad and is used for being connected with equipment, the air supporting axle sleeve inner peripheral even has a plurality of ventholes to evenly distributed along a plurality of ventholes.

2. The metering roll of claim 1, wherein at least two elastic sealing rings are arranged between the air-floating shaft sleeve and the inner wall of the mounting seat, and the shaft sleeve air pipe joint is positioned between the two elastic sealing rings.

3. The metering roll of claim 1, wherein the air bearing assembly further comprises an adjusting screw and a planar air bearing, a threaded hole is formed in the outer wall of one end, far away from the center of the roll body, of the mounting seat, the adjusting screw is in threaded fit with the threaded hole, the head of the adjusting screw is located outside the mounting seat, the tail end of the adjusting screw is located inside the mounting seat, the planar air bearing is clamped between the tail end of the adjusting screw and the end of the corresponding end of the roll body, and a bearing air pipe joint of the planar air bearing is used for being connected with air supply equipment.

4. A metering roll according to claim 3, wherein the tail end of the adjusting screw is spherical, a groove is formed in one end, far away from the center of the roll body, of the planar air bearing, and the tail end of the adjusting screw is matched and abutted with the groove of the corresponding planar air bearing.

5. A counter roller according to claim 3, wherein in the two air bearing assemblies, an adjusting screw of one air bearing assembly is in threaded fit with an adjusting nut, an elastic piece is sleeved on the outer periphery of the adjusting screw, the elastic piece is located in a corresponding mounting seat, one end of the elastic piece is connected with an inner wall of one end, far away from the center of the roller body, of the corresponding mounting seat, and the other end of the elastic piece is connected with a boss of the adjusting screw.

6. The metering roll of claim 1 wherein the air bearing assemblies further comprise a chassis, the mounting base is disposed at a top end of the chassis, and the sensor is disposed on the chassis of one of the air bearing assemblies by a sensor mount.

7. The metering roll of claim 1, wherein a stop collar is disposed in an end of the mounting base near the center of the roll body, and an end of the air-float shaft sleeve near the center of the roll body abuts against the stop collar.

8. The metering roll of claim 1 wherein the metering disc is provided with a plurality of through holes arranged in an annular spaced relationship about a center of the metering disc, and wherein the sensor is opposite one of the through holes of the metering disc.

9. The metering roll of claim 1, wherein the air-float sleeve comprises a first portion and a second portion sleeved on the outer periphery of the first portion, the first portion is sleeved on the outer periphery of the corresponding end of the roll body, the plurality of sleeve air outlets are distributed on the inner periphery of the first portion, a concave cavity is formed in the inner periphery of the second portion, the sleeve air outlets are communicated with the concave cavity, the sleeve air pipe joint is arranged on the outer periphery of the second portion, the sleeve air pipe joint is communicated with the concave cavity, and the sleeve inner cavity is formed between the concave cavity and the first portion.

10. Coating apparatus, characterized in that it comprises a metering roll according to any one of claims 1 to 9.