CN109746756B

CN109746756B - Micro-groove combined disc cutter for supplying oil through rubber ring extrusion

Info

Publication number: CN109746756B
Application number: CN201811230961.6A
Authority: CN
Inventors: 阎秋生; 汤彪; 路家斌; 朱奕玮
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2021-02-09
Anticipated expiration: 2038-10-22
Also published as: CN109746756A

Abstract

The invention discloses a micro-groove combined disc cutter for supplying oil through rubber ring extrusion, which comprises a cutter body, a mounting seat and a rubber ring, wherein the mounting seat and the cutter body are coaxially fixed on a transmission shaft so as to fixedly connect the mounting seat and the cutter body together; the rubber ring is sleeved on the outer circumference of the mounting seat, an oil storage tank is arranged on the end face of the rubber ring, and a gap is formed between the end face of the rubber ring and the end face of the cutter body; when the cutter body rotates, the metal plate extrudes the outer circular surface of the rubber ring, the rubber ring deforms to extrude out the lubricating oil in the oil storage tank, and the lubricating oil flows to the cutting edge of the cutter body through the gap. When the rubber ring is cut, the outer circumference of the rubber ring is extruded to deform, so that the lubricating oil in the oil storage groove is extruded out of the oil storage groove. The extruded lubricating oil flows to the cutting edge of the cutter body through the gap under the action of centrifugal force, so that the cutting edge of the cutter body is lubricated, and the lubricating device has the beneficial effects of simple structure, uniform lubrication and low input cost.

Description

Micro-groove combined disc cutter for supplying oil through rubber ring extrusion

Technical Field

The invention relates to a disc cutter, in particular to a micro-groove combined disc cutter for supplying oil through extrusion of a rubber ring.

Background

The metal plate is cut mainly by two processing modes, namely, longitudinal cutting by a disc shear and transverse cutting by an inclined blade, wherein the longitudinal cutting by the disc shear is to cut the metal plate into a metal strip with a suitable width, and the transverse cutting is to cut the metal strip into a flat plate with a required length for subsequent processing.

The circular cutter is used for the fixed-width longitudinal shearing and slitting processing of the plate. As shown in fig. 1, two disc cutters 1 with the same size are installed on an upper transmission shaft 2 and a lower transmission shaft 2 in a staggered manner, and an elastic rubber ring 3 is installed on one side corresponding to the disc cutters 1. The lateral clearance and the radial clearance are adjusted according to the thickness, the performance and the slitting precision of the metal plate 4. The currently common disc cutter materials mainly comprise hard alloy, high-speed steel and the like.

4 pairs of friction pairs are always arranged between the metal plate and the upper cutter in the shearing processing process, namely the friction pair consisting of the side cutter face and the plate section and the friction pair consisting of the front cutter face and the plate surface, and the upper cutter and the lower cutter are respectively provided with 2 pairs. Particularly, a large lateral extrusion force exists between the side cutter face and the cross section, strong friction exists, even due to the dragging effect at the cutter cutting edge, the material is broken prematurely in the shearing process, and the finishing degree of the cross section is seriously influenced. On the other hand, the strong friction action can also accelerate the abrasion of the cutter and shorten the service life of the cutter.

The friction in the transverse shearing process can be effectively reduced by adopting reasonable lubrication, wherein the friction force and the friction coefficient are reduced, the shearing force and the shearing work are reduced, and the shearing temperature and the heat are reduced, so that the shearing section quality of the plate is improved, and the service life of a cutter is prolonged.

The mode of shearing lubrication mainly comprises the use of mechanical lubricating oil, the application of a lubricating coating on the surface of a cutter and the use of a self-lubricating cutter. Lubrication with mechanical lubricating oils is the most traditional method and the most widely used method in actual production. Common liquid lubrication liquid supply methods include manual oil supply, oil cup lubrication, oil immersion lubrication, splash lubrication, oil spray lubrication and the like. The most common lubrication liquid supply methods at present are manual oil supply and oil injection lubrication. The manual oil supply is that the cutter is oiled by a manual coating mode within a certain time, the efficiency is low, the oil film is quickly attenuated in the processing process, and the method is not suitable for large-scale production. The oil injection lubrication can realize the synchronization of lubrication and processing, but a set of special logistics system for lubricant storage, use and waste treatment is needed, so that the equipment structure is complex, the investment of hardware cost is high, and the consumption of lubricating oil is huge.

Disclosure of Invention

The invention aims to solve the problems that the existing manual oil supply has low working efficiency, an oil film is quickly attenuated in the processing process and is not suitable for large-scale production, and the oil injection lubrication needs a set of special logistics system for storing, using and discarding lubricants, so that the equipment structure is complex, the investment of hardware cost is high, and the consumption of the lubricants is huge, and provides the micro-groove combined disc cutter which is simple in structure, uniform in lubrication, low in investment cost and long in service life and can supply oil through extrusion of a rubber ring.

The purpose of the invention can be achieved by adopting the following technical scheme:

a micro-groove combined disc cutter for supplying oil through rubber ring extrusion comprises a cutter body, a mounting seat and a rubber ring, wherein the mounting seat and the cutter body are coaxially and fixedly mounted on a transmission shaft so as to fixedly connect the mounting seat and the cutter body together; the rubber ring is sleeved on the outer circumference of the mounting seat, an oil storage tank is arranged on the end face of the rubber ring, and a gap is formed between the end face of the rubber ring and the end face of the cutter body; when the cutter body rotates, the metal plate extrudes the outer circular surface of the rubber ring, the rubber ring deforms to extrude out the lubricating oil in the oil storage tank, and the lubricating oil flows to the cutting edge of the cutter body through the gap.

Preferably, a felt is arranged in the oil storage tank.

Preferably, the oil storage tank is provided in plurality and is uniformly distributed on the end face of the rubber ring.

Preferably, the oil storage tank has a width of 0.1-1mm and a depth of 0.1-1 mm.

Preferably, the tool body is made of high-speed steel or hard alloy material.

The implementation of the invention has the following beneficial effects:

1. when the cutter body shears a metal plate, the cutter body, the mounting seat and the rubber ring rotate under the driving of the transmission shaft, and the outer circumference of the rubber ring is extruded to deform, so that lubricating oil in the oil storage groove is extruded out of the oil storage groove. The extruded lubricating oil flows through the gap to the cutting edge of the cutter body by the force of centrifugal force, thereby lubricating the cutting edge of the cutter body. The invention can control the flow of the lubricating oil passing through the gap by adjusting the size of the gap, has smart structure and simple and convenient adjustment, and ensures that the supply quantity of the lubricating oil can adapt to the required quantity of the processing speed, thereby improving the use efficiency and the lubricating efficiency of the lubricating oil.

2. When the lubricating oil flows to the cutting edge of the cutter body through the gap, the flow rate of the lubricating oil is increased along with the increase of the rotating speed of the cutter body, and is also reduced along with the decrease of the rotating speed of the cutter body. Therefore, when the tool body rotates at a low speed and the required amount of lubrication is small, the lubricating oil in the oil storage tank automatically lubricates the cutting edge of the tool body at a small flow rate under the action of small centrifugal force. When the rotating speed of the cutter body is increased, the lubricating oil in the oil storage tank is automatically adjusted under the action of larger centrifugal force and lubricates the cutting edge of the cutter body at a larger flow rate, and the automatic flow rate adjusting and lubricating device has the characteristics of automatic flow rate adjustment, convenience in use and flexibility.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a conventional cutting disc:

FIG. 2 is a schematic structural diagram of a micro-groove combined cutting disc fed with oil by rubber ring extrusion according to the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic view of a first structure of a mounting seat and a rubber ring of the micro-groove combined cutting disc fed with oil by rubber ring extrusion according to the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a partial enlarged view of portion A of FIG. 5;

FIG. 7 is a second structural diagram of the mounting seat and the rubber ring of the micro-groove combined cutting disc fed by the rubber ring extrusion;

FIG. 8 is a cross-sectional view taken along the line C-C of FIG. 7;

fig. 9 is a partially enlarged view of a portion B of fig. 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 6, the present embodiment relates to a circular disc cutter, which includes a cutter body 1, a mounting seat 2 and a rubber ring 3, wherein the mounting seat 2 and the cutter body 1 are coaxially and fixedly mounted on a transmission shaft to fixedly connect the mounting seat 2 and the cutter body 1 together; the rubber ring 3 is sleeved on the outer circumference of the mounting seat 2, an oil storage tank 31 is arranged on the end face of the rubber ring 3, and a gap 32 is formed between the end face of the rubber ring 3 and the end face of the cutter body 1; when the tool body 1 is rotated, the metal plate presses the outer circumferential surface of the rubber ring 3, the rubber ring 3 deforms to squeeze out the lubricating oil in the oil storage tank 31, and the lubricating oil flows to the cutting edge of the tool body 1 through the gap 32. The rubber ring 3 is sleeved on the outer circumference of the mounting seat 2.

When the cutter body 1 shears a metal plate, the cutter body 1, the mounting seat 2 and the rubber ring 3 are driven by the transmission shaft to rotate, and the outer circumference of the rubber ring 3 is extruded to deform, so that the lubricating oil in the oil storage groove 31 is extruded out of the oil storage groove 31. The squeezed-out lubricating oil flows through the gap 32 to the cutting edges of the cutter body 1 by the force of centrifugal force, thereby lubricating the cutting edges of the cutter body 1. This structure can be through the flow that clearance 32 was passed through to the size control lubricating oil of adjusting clearance 32, and the structure is ingenious, adjusts simply and conveniently for the supply capacity of lubricating oil can adapt to the required quantity of process velocity, thereby improves the availability factor and the lubrication efficiency of lubricating oil.

When the lubricating oil flows onto the cutting edges of the tool body 1 through the gap 32, the flow rate of the lubricating oil increases with an increase in the rotational speed of the tool body 1 and also decreases with a decrease in the rotational speed of the tool body 1. Therefore, when the tool body 1 rotates at a low speed and the amount of lubrication required is small, the lubricating oil in the oil reservoir 31 automatically lubricates the cutting edge of the tool body 1 at a small flow rate by a small centrifugal force. When the rotating speed of the cutter body 1 is increased, the lubricating oil in the oil storage tank 31 is automatically adjusted under the action of larger centrifugal force and lubricates the cutting edge of the cutter body 1 at a larger flow rate, and the automatic adjustment type cutter has the characteristics of automatic flow rate adjustment, convenience in use and flexibility.

A felt 4 is arranged in the oil storage tank 31. Through set up the felt 4 in oil storage tank 31, can reduce the output speed of lubricating oil for lubricating oil can lubricate the cutting edge of cutter body 1 through clearance 32 with less flow under the effect of centrifugal force, and then prolong lubricated time.

The oil storage tanks 31 are arranged in plurality and are uniformly distributed on the end face of the rubber ring 3. By dividing one oil storage tank 31 into a plurality of smaller oil storage tanks 31, the rigidity of the rubber ring 3 can be improved, and it is ensured that the rubber ring 3 can be more stably mounted on the mounting base 2. As shown in fig. 6, the oil reservoir may have a square shape, a triangular shape as shown in fig. 7 to 9, or a circular shape.

The width of the oil storage tank 31 is 0.1-1mm, and the depth is 0.1-1 mm. The oil storage tank 31 of this size can provide the oil storage tank 31 with good rigidity and can store a large amount of lubricating oil.

The cutter body 1 is made of high-speed steel or hard alloy materials. Other corresponding materials can be selected for the tool body 1 according to the characteristics of the metal plate material.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides a little slot combination circle disc cutter through rubber ring extrusion fuel feeding which characterized in that: the cutting tool comprises a tool body, a mounting seat and a rubber ring, wherein the mounting seat and the tool body are coaxially and fixedly mounted on a transmission shaft so as to fixedly connect the mounting seat and the tool body together; the rubber ring is sleeved on the outer circumference of the mounting seat, an oil storage tank is arranged on the end face of the rubber ring, and a gap is formed between the end face of the rubber ring and the end face of the cutter body; when the cutter body rotates, the metal plate extrudes the outer circular surface of the rubber ring, the rubber ring deforms to extrude out the lubricating oil in the oil storage tank, and the lubricating oil flows to the cutting edge of the cutter body through the gap.

2. The micro-groove composite disc cutter for oil supply by rubber ring extrusion as claimed in claim 1, wherein: and a felt is arranged in the oil storage tank.

3. The micro-groove composite disc cutter for oil supply by rubber ring extrusion as claimed in claim 1, wherein: the oil storage tank is set to be a plurality of, and evenly distributed on the terminal surface of rubber circle.

4. A micro-groove composite disc cutter for oil supply by rubber ring extrusion as claimed in any one of claims 1 to 3, wherein: the width of the oil storage tank is 0.1-1mm, and the depth of the oil storage tank is 0.1-1 mm.

5. The micro-groove composite disc cutter for oil supply by rubber ring extrusion as claimed in claim 1, wherein: the cutter body is made of high-speed steel or hard alloy materials.