CN219190374U

CN219190374U - Guide wheel device of wire cutting machine

Info

Publication number: CN219190374U
Application number: CN202223284487.XU
Authority: CN
Inventors: 曹建伟; 朱亮; 卢嘉彬; 王金荣; 周锋; 傅林坚; 沈振宏; 程远瑶; 董医芳
Original assignee: Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Current assignee: Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-16
Anticipated expiration: 2032-12-07

Abstract

The embodiment of the utility model provides a guide wheel device of a wire cutting machine, which belongs to the related technical field of wire cutting machines and comprises a guide wheel shaft and a shell. The shell surrounds the outer side surface of the guide wheel shaft. The shell can be filled with gas, and the gas and the guide wheel shaft act to form a gas film between the outer side surface of the guide wheel shaft and the inside of the shell, and the gas film supports the guide wheel shaft and reduces friction force in rotation of the guide wheel shaft; the technical effect that the fluctuation of the wire net is not affected after the guide wheel of the wire cutting machine is used for a long time is achieved.

Description

Guide wheel device of wire cutting machine

Technical Field

The utility model relates to the technical field of wire cutting machines, in particular to a guide wheel device of a wire cutting machine.

Background

In the normal use process of the wire cutting machine, the wire cutting machine is required to be used for a wire arranging guide wheel, a tension guide wheel and an inclined guide wheel, and the cutting wire is required to reciprocate in the slicing process of the wire cutting machine for the bar, so that the guide wheel is used frequently.

In the prior art, the guide wheel in the wire cutting machine adopts a contact type bearing to provide a supporting function, but the bearing belongs to a consumable part, and after the time is long, the abrasion condition exists. After the bearing is worn, fluctuation can be generated to the wire cutting tension, meanwhile, because the bearing assembly has the difference, the individual difference problem exists among different guide wheel main bodies, and the stability of the cutting wire can be influenced.

Therefore, the technical problems of the prior art are: after the guide wheel of the wire cutting machine is used for a long time, the fluctuation of the wire net can be influenced.

Disclosure of Invention

The embodiment of the application provides a guide wheel device of a wire cutting machine, which solves the technical problem that the fluctuation of a wire net can be influenced after the guide wheel of the wire cutting machine is used for a long time in the prior art; the technical effect that the fluctuation of the wire net is not affected after the guide wheel of the wire cutting machine is used for a long time is achieved.

The embodiment of the application provides a line cutting machine guide pulley device, and the guide pulley device includes: a guide wheel shaft; the shell surrounds the outer side surface of the guide wheel shaft; and a gas can be introduced into the shell, and the gas and the guide wheel shaft act, so that a gas film is formed between the outer side surface of the guide wheel shaft and the inside of the shell, the gas film supports the guide wheel shaft, and the friction force in the rotation of the guide wheel shaft is reduced.

Preferably, a channel is arranged in the shell, and the channel is communicated with the outer side surface of the guide wheel shaft, so that gas entering from the channel can form a gas film on the outer side surface of the guide wheel shaft.

Preferably, the housing includes: the shaft sleeve surrounds the outer side face of the guide wheel shaft, and is connected with the guide wheel shaft; the end cover is positioned at the end part of the guide wheel shaft, the end cover is connected with the side surface of the shaft sleeve, and the end cover, the shaft sleeve and the guide wheel shaft form a closed space; wherein the gas enters the closed space from the sleeve.

Preferably, the sleeve includes: an outer layer in which a channel is left; the inner layer is positioned in the outer layer, the inner layer is connected with the outer layer, the inner layer is communicated with the channel, and a gap is formed in the inner layer, so that gas can enter the inner layer from the outer layer and act on the guide wheel shaft.

Preferably, the inner layer is made of a loose porous material.

Preferably, the ratio of the length to the thickness of the inner layer is in the range of 1.2 to 1.3.

Preferably, the length of the inner layer ranges from 8 to 14mm.

Preferably, the material of the inner layer is graphite.

Preferably, the outer surface of the inner layer is provided with a groove, and the groove is communicated with the channel.

Preferably, the pressure of the gas is greater than or equal to 0.8Mpa.

The above-mentioned one or more technical solutions in the embodiments of the present application at least have one or more of the following technical effects:

1. in the embodiment of the application, the air can be introduced into the shell, and the air and the guide wheel shaft act, so that an air film is formed between the outer side surface of the guide wheel shaft and the inside of the shell, the air film supports the guide wheel shaft, and the friction force in the rotation of the guide wheel shaft is reduced, so that the abrasion in the use process of the guide wheel shaft is reduced, and the technical problem that the fluctuation of a wire net can be influenced after the guide wheel of the wire cutting machine in the prior art is used for a long time is solved; the technical effect that the fluctuation of the wire net is not affected after the guide wheel of the wire cutting machine is used for a long time is achieved.

Drawings

FIG. 1 is a schematic view of a prior art pay-off and take-up device;

FIG. 2 is a schematic diagram of a guide wheel device of a wire cutting machine according to an embodiment of the present disclosure;

fig. 3 is a cross-sectional view A-A of fig. 2.

Reference numerals:

100. a guide wheel; 110. a winding displacement guide wheel; 120. a tension guide wheel; 130. an inclined guide wheel; 200. a guide wheel shaft; 210. a rotating shaft; 220. a connecting plate; 300. a housing; 310. a shaft sleeve; 311. an outer layer; 312. an inner layer; 3121. a groove; 320. an end cap; 330. a channel.

Detailed Description

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

In the working process of the wire cutting machine, the guide wheel is frequently used in the process of cutting the bar by the long-time winding and unwinding wire, and the guide wheel in the existing wire cutting machine adopts a contact bearing to provide a supporting function, so that the bearing belongs to a consumable part, and the abrasion condition exists after the time is long. After the bearing is worn, the cutting tension of the wire mesh is easy to fluctuate, so that the final slicing quality is affected.

As shown in fig. 1, in the working process of the wire cutting machine, the cutting wire is continuously retracted, and contact bearings are adopted by the bearings on the wire arranging guide wheel 110, the tension arm guide wheel 120 and the inclined guide wheel 130. After the wire cutting machine works for a long time, the bearing can be worn. The utility model provides a line cutter guide pulley device for after the guide pulley of slicer used for a long time, the guide pulley bearing is difficult for wearing and tearing, can not influence the net fluctuation, thereby is favorable to improving the section quality.

As shown in fig. 2 and 3, a guide wheel device of a wire cutting machine comprises a guide wheel shaft 200 and a housing 300. Housing 300 surrounds the outer side of idler shaft 200. Wherein, a gas can be introduced into the housing 300, and the gas acts with the guide wheel shaft 200, so that a gas film is formed between the outer side surface of the guide wheel shaft 200 and the inside of the housing 300, and the gas film supports the guide wheel shaft 200, thereby reducing the friction force in the rotation of the guide wheel shaft 200. It should be noted that, when the wire cutting machine works for a long time, gas is introduced into the housing 300, so that a gas film is formed between the outer side surface of the guide wheel shaft 200 and the interior of the housing 300, the gas film supports the guide wheel shaft 200, the friction force in the rotation of the guide wheel shaft 200 is reduced, abrasion of the guide wheel bearing is avoided, the wire net fluctuation cannot be influenced after the guide wheel of the wire cutting machine is used for a long time, and the quality of final cutting is not easily influenced.

Housing 300, as shown in fig. 2 and 3, housing 300 is configured to store air along with the outer side surface of idler shaft 200, and simultaneously housing 300 and air support idler shaft 200 to reduce friction during rotation of idler shaft 200. A passage 330 is provided in the housing 300, and the passage 330 communicates with the outer side surface of the guide roller shaft 200, so that gas introduced from the passage 330 can form a gas film on the outer side surface of the guide roller shaft 200. In one embodiment, housing 300 includes a sleeve 310 and an end cap 320. Sleeve 310 surrounds the outer surface of idler shaft 200, and sleeve 310 is coupled to idler shaft 200. End cap 320 is located at the end of idler shaft 200, end cap 320 is connected to the side of sleeve 310, and end cap 320, sleeve 310 and idler shaft 200 form an enclosed space. Wherein gas enters the enclosed space from the sleeve 310. Specifically, in one embodiment, the connection between the sleeve 310, the end cap 320 and the guide shaft 200 is such that the sleeve 310 is sleeved on the outer side surface of the guide shaft 200, and is located on one end surface of the guide shaft 200 through the end cap 320, and the end cap 320 and the guide shaft 200 are fixed under the action of external fixing elements such as bolts. Sleeve 310 is compressed by end cap 320 and idler shaft 200. As shown in fig. 3, the guide shaft 200 includes a rotation shaft 210 and a connection plate 220. The rotation shaft 210 and the connection plate 220 are perpendicular to each other, and the rotation shaft 210 and the connection plate 220 are integrally formed. In the guide wheel use process, the rotating shaft 210 is connected with a motor (not shown in the figure), and the rotating shaft 210 is driven to rotate under the action of the motor. Under the integral forming action of the rotating shaft 210 and the connecting plate 220, the arrangement of the end cover 320 is matched, so that an air film is formed between the shaft sleeve 310 and the rotating shaft 210, and abrasion of the rotating shaft 210 in the using process is avoided. It should be noted that, a closed space is formed by the end cover 320, the shaft sleeve 310 and the guide wheel shaft 200, and the gas enters into the closed space from the shaft sleeve 310, so that the gas can enter into the outer side surface of the guide wheel shaft 200 and the interior of the shaft sleeve 310 more quickly, thereby forming a gas film on the outer side surface of the guide wheel shaft 200, reducing the friction force in the rotation of the guide wheel shaft 200, and avoiding the easy abrasion of the guide wheel bearing. It will be appreciated that gas films may also be possible as gas enters the outer side of idler shaft 200 from end cap 320 and inside sleeve 310.

Further, as shown in FIG. 3, the sleeve 310 includes an outer layer 311 and an inner layer 312. The outer layer 311 leaves the location of the channels 330. The inner layer 312 is positioned inside the outer layer 311, the inner layer 312 is connected to the outer layer 311, the inner layer 312 is in communication with the channel 330, and there is a void in the inner layer 312 so that gas can enter the inner layer 312 from the outer layer 311 and act on the guide shaft 20. During the connection between the inner layer 312 and the outer layer 311, a crimp connection is used between the inner layer 312 and the outer layer 311 or the outer surface of the inner layer 312 is in contact with the inner surface of the outer layer 311. It will be appreciated that the inner layer 312 is made of a loose porous material. In one embodiment, the material of the inner layer 312 is graphite. The graphite is provided with a plurality of holes, and gas enters the inner layer 312 from the outer layer 311, and the inner layer 312 is provided with a plurality of holes, so that the gas can enter the outer surface of the rotating shaft 210 in the guide wheel shaft 200 through the inner layer 312, and the gas can form a gas film between the outer surface of the rotating shaft 210 and the inner layer 312, and the gas film can play a supporting role on the rotating shaft 210, thereby reducing the friction force in the rotating process of the rotating shaft 210 and avoiding the abrasion of the rotating shaft 210. It should be noted that the material of the inner layer 312 is not limited to graphite, and may be used when the material of the inner layer 312 is other materials, but the material contains multiple holes.

When gas is introduced into the housing 300 so that the gas forms a film on the outer surface of the guide roller shaft 200 and the inner side of the housing 300, the introduced gas is high-pressure gas, and the pressure of the gas is 0.8Mpa or more. It will be appreciated that the gas may be air or an inert gas. In order that the guide wheel can be normally applied to a wire cutting machine after high-pressure gas is introduced, the inner layer 312 of the shaft sleeve 310 in the housing 300 needs to satisfy certain conditions. Specifically, the ratio of the length to the thickness of the inner layer 312 is in the range of 1.2-1.3. The length of the inner layer 312 ranges from 8-14mm. In addition, the outer surface of the inner layer 312 is provided with grooves 3121, the grooves 3121 communicating with the channels 330. The provision of grooves 3121 facilitates faster gas entry into inner layer 312, thereby facilitating the support of idler shaft 200 by the gas film and reducing friction during rotation of idler shaft 200.

Working principle/steps:

as shown in fig. 3, by introducing gas into the housing 300, the gas forms a gas film between the outer side surface of the guide wheel shaft 200 and the interior of the housing 300, and the gas film supports the guide wheel shaft 200, so that friction force in rotation of the guide wheel shaft 200 is reduced, abrasion of the guide wheel shaft 200 is avoided, and fluctuation of a wire net is influenced;

the housing 300 includes a sleeve 310 and an end cap 320, and the sleeve 310 includes an outer layer 311 and an inner layer 312. The inner layer 312 contains multiple holes, and is communicated with the inner layer 312 through the channel 330 in the outer layer 311, so that gas is conveyed from the outer side surface of the outer shell 300 to the guide wheel shaft 200, and a gas film is formed between the outer side surface of the outer shell 300, thereby realizing the purpose of reducing friction force in rotation of the guide wheel shaft 200, avoiding abrasion of the guide wheel shaft 200 and affecting fluctuation of a wire net.

The technical effects are as follows:

1. in the embodiment of the application, a gas can be introduced into the shell 300, and the gas acts with the guide wheel shaft 200, so that a gas film is formed between the outer side surface of the guide wheel shaft 200 and the inside of the shell 300, the gas film supports the guide wheel shaft 200, and the friction force in the rotation of the guide wheel shaft 200 is reduced, so that the abrasion of the guide wheel shaft 200 in the use process is reduced, and the technical problem that the fluctuation of a wire net is influenced after the guide wheel of a wire cutting machine in the prior art is used for a long time is solved; the technical effect that the fluctuation of the wire net is not affected after the guide wheel of the wire cutting machine is used for a long time is achieved.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A wire cutting machine guide wheel device, characterized in that the guide wheel device comprises:

a guide wheel shaft;

the shell surrounds the outer side surface of the guide wheel shaft;

and a gas can be introduced into the shell, and the gas and the guide wheel shaft act, so that a gas film is formed between the outer side surface of the guide wheel shaft and the inside of the shell, the gas film supports the guide wheel shaft, and the friction force in the rotation of the guide wheel shaft is reduced.

2. A wire cutting machine guide wheel assembly as claimed in claim 1 wherein a passageway is provided in the housing, the passageway communicating with the outer side of the guide wheel shaft such that gas entering from the passageway can form a gas film on the outer side of the guide wheel shaft.

3. A wire cutting machine guide wheel assembly as defined in claim 2, wherein said housing includes:

the shaft sleeve surrounds the outer side face of the guide wheel shaft, and is connected with the guide wheel shaft;

the end cover is positioned at the end part of the guide wheel shaft, the end cover is connected with the side surface of the shaft sleeve, and the end cover, the shaft sleeve and the guide wheel shaft form a closed space;

wherein the gas enters the closed space from the sleeve.

4. A wire cutting machine guide wheel assembly as defined in claim 3, wherein said sleeve comprises:

an outer layer in which a channel is left;

the inner layer is positioned in the outer layer, the inner layer is connected with the outer layer, the inner layer is communicated with the channel, and a gap is formed in the inner layer, so that gas can enter the inner layer from the outer layer and act on the guide wheel shaft.

5. A wire cutting machine guide wheel assembly as defined in claim 4, wherein said inner layer is made of a porous material.

6. A wire cutter guide wheel assembly as defined in claim 4 or claim 5 wherein the ratio of the length to the thickness of the inner layer is in the range of 1.2 to 1.3.

7. A wire cutter guide wheel assembly as defined in claim 6, wherein said inner layer has a length in the range of 8-14mm.

8. A wire cutting machine guide wheel assembly as defined in claim 5, wherein said inner layer is graphite.

9. A wire cutting machine guide wheel assembly as defined in claim 4, wherein the outer surface of said inner layer is provided with grooves, the grooves communicating with the channels.

10. A wire cutting machine guide wheel arrangement as claimed in claim 1 or 9, wherein the pressure of the gas is greater than or equal to 0.8Mpa.