KR20190006361A - Multifunction piping cutting device - Google Patents

Abstract

More specifically, the present invention relates to a multi-cutting apparatus, and more particularly, to a multi-cutting apparatus which rotates an object to be processed and cuts the cutting object by simply pressing the cutting support point during the rotation of the object, The present invention relates to a cutting device for a workpiece having a structure capable of reducing the diameter of an end of a workpiece and capable of performing surface finishing work on a separate cut surface.

Description

{Multifunction piping cutting device}

The present invention relates to a multi-cutting apparatus and, as cutting is performed in such a manner that a cutting member presses an object in a process of rotation of the object, the cutting operation and the diameter reduction of the end of the object can be simultaneously performed, It is about technologies that can increase efficiency.

The present invention also relates to a multi-cutting apparatus having a structure in which a plurality of functions are provided as a whole together with a machining means for machining a surface of a cut surface after cutting.

A metal or non-metal object to be used for various purposes is cut after being cut to an appropriate length through a cutting device in the field, and a general multi-cutting device is used in which a cutting blade rotating in a state in which a workpiece is fixed is vertically rotated .

In such an existing cutting device, since the user must cut the cutting edge by rotating the handle of the cutting edge with the other hand while fixing the object with one hand, a safety accident such as cutting a hand holding the object frequently occurs frequently.

In addition, the object to be processed, which is used for fluid, is connected in a state where each end portion is inserted into a separate sealing member in a process of connecting the objects to be processed. Since the end face edge of the object to be cut by the conventional cutting apparatus is rough and sharp, The edge of the end face of the object is chamfered to prevent the sealing member from being damaged by contact with the edge of the end face of the object in the insertion process.

However, since the conventional cutting apparatus has merely a cutting function of the object to be processed, the chamfering is performed through a separate apparatus after the cutting operation, which lowers the overall efficiency of the object to be processed.

The conventional art has a structure in which a workpiece is fixed by a roller chain in a state where the workpiece is placed on a guide roll and is cut in contact with a cutting blade rotated by a separate driving motor in the process of rotating the workpiece through rotation of the guide roll .

Accordingly, since the worker does not have to fix the object to be processed, it is possible to prevent a safety accident in the work process, and the surface of the cut surface is formed in a straight shape because the object is cut while being rotated.

In addition, there is an advantage that the cutting blade can be replaced with a cutting blade for cutting after cutting, and the chamfering of the surface of the cut surface can be continuously performed by the same device.

However, such a conventional technique requires a replacement of the cutting blade every time for chamfering, so that the replacement operation is troublesome and the chamfering position is set after the replacement of the cutting edge.

In addition, according to the diameter of the object to be processed, there is also a problem that various types of cutting blades for the face must be prepared.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a multi-cutting apparatus capable of increasing the overall working efficiency by simultaneously reducing the diameter of the end portion corresponding to the existing chamfering processing, ≪ / RTI >

Also, it is intended to provide a multi-cutting apparatus which can reduce the time and labor required for replacing the cutting blade every time the cutting and chamfering operations are performed, as well as the whole processing time of the object to be processed.

According to another aspect of the present invention, there is provided an apparatus for cutting a workpiece, comprising: a main body; a workpiece rotating means installed on the main body for rotating a workpiece to be processed; And a pressing cutter connected to the object to be pressed and cutting the object to be cut, wherein the object to be pressed comprises a raising and lower driving member, and a connection part connecting the raising and lower driving member And an upper frame disposed at a lower side of the up and down frame and provided with a press roller at a lower portion thereof. The lower frame is connected to both sides of the up and down frame such that an upper end thereof is slidable, A guide shaft which is fixed to the guide shaft, And in that it comprises a gap forming member to maintain the spacing of teeth on the frame, characterized in that configuration.

The lifting and lowering driving member may include a plurality of supporting bars installed vertically to the rear of the main body and a plurality of support bars provided between the supporting bars, And an up and down operation guide bar for raising and lowering the up and down frames.

The lifting and lowering driving member may include a plurality of supporting bars installed vertically to the rear of the main body and a plurality of support bars provided between the supporting bars, And an up and down operation guide bar for raising and lowering the up and down frames.

The body may further include a cutting finishing member including a rotation induction lever and a cutting tip connected to the rotation induction lever.

According to the present invention having the characteristic features as described above, as the pressing cutter presses the cutting point of the object to be processed in the course of position fixation and rotation of the object by the object pressing means and the rotating means, The diameter of the end portion of the object to be processed is reduced by the pressing force which is exerted simultaneously on the object to be chamfered.

In addition, since the cutting of the object and the reduction of the end diameter can be performed at the same time by a single pushing cutting machine, there is an advantage that it is possible to eliminate the troublesome to replace the cutting blade with the cutting blade for each use.

In addition, since the surface of the cut surface can be smoothly machined immediately after cutting through the surface machining means of a separate cut surface, the cutting, the reduction of the end diameter, and the surface finishing of the cut surface can both be accomplished with one cutting device The overall operation efficiency is improved.

1 is a perspective view
2 is a rear perspective view
Figs. 3 and 4 show side use graphs
Figures 5 and 6 show the front use views of Figures 3 and 4

Hereinafter, the present invention will be described in detail based on the configuration shown in the drawings.

The multi-cutting apparatus according to the present invention comprises a main body 100, a workpiece turning means 200, a workpiece pressing means 300, and a press cutting device 400.

The main body 100 is provided with all the components of the present invention. The main body 100 is provided with an operation switch 110 on one side and a side support portion 120 on both sides

The workpiece rotating means 200 is a part for rotating the workpiece P to be processed and rotates with the support roller 210, And an induction unit 220.

The support roller 210 is a portion on which the object P is seated and rotated and is further provided with a lower support roller 212 for supporting the lower portion of the object P and a lower support roller 212 for supporting the lower object support P And a side support roller 214, which is positioned slightly above the lower portion of the lower portion of the workpiece P, for supporting the object P to be processed.

The lower support roller 212 is in the form of a simple rod and is rotatably coupled to the side supporting portion 120 of the main body 100 in a state where the lower supporting roller 212 is divided into two at right and left intervals.

The side support roller 214 is also in the form of a simple rod, and a pivot shaft 214a at both ends is rotatably coupled to the main body side support portion and is positioned slightly above the lower support roller 212. [

The side support roller 214 is used to additionally support the object to be processed when the object diameter is large and the lower support roller 212 can not stably hold the object.

A sprocket wheel S is provided at one end of each of the support rollers 212 and 214 for connection with the rotation inducing unit 220.

The rotation inducing unit 220 for rotating the support rollers 212 and 214 is provided with a drive motor 222 inside the main body 100 and a drive motor 222 for driving the drive motor 222 through a chain C And the shaft and each of the support rollers 212 and 214 are connected to each other.

Therefore, when the drive motor 222 is driven, all the support rollers 212 and 214 are interlocked at the same time.

The workpiece pressing means 300 is a part for performing a function of fixing the object P in the cutting process and an operation function of a push cutter 400 which will be described later and further includes an up and down driving member and a pressure roller 315 .

First, the lifting and lowering driving member is an element that serves as a lifting and lowering driving force of a pressure roller 315 described later. As shown in Figs. 1 to 3, the supporting bar 311 and the driving shaft 312, A bar 313, and an ascending and descending frame 314.

First, the support bar 311 serves to serve as a pillar of the object pressing means 300 and to assist in a stable upward and downward movement of the pressurizing roller 315 described later. The lower end of the support bar 311 is vertically As shown in FIG.

A drive box 316 is installed at the upper end of each support bar 311 and a drive shaft 312 is installed at one side of the drive box 316.

One end of the driving shaft 312 is inserted into one side wall of the driving box 316 and a rotary knob 317 is provided at an end of the driving shaft 312 located outside the driving box 316 And a first bevel gear 312a is provided at an end located inside the driving box 316. [

Up and down operation guide bars 313 are positioned between the support bars 311. The upward and downward operation guide bars 313 transmit the driving force of the drive shaft 312 to a pressure roller 315 And is formed in the shape of a bar in a screw shape and is installed in parallel with the support bar 311 and has a second bevel gear 313a at the upper end thereof and connected to the first bevel gear 312a.

Each of the support bars 311 and the upward and downward operation induction bar 313 is coupled with the upward and downward frames 314 through which the pressurizing roller 315 and the press cutter 400 to be described later are installed. The frame 314 and the raising and lowering operation inducing bar 313 are mutually bolted to each other so that the raising and lowering frame 314 is moved up and down by the operation of the raising and lowering operation inducing bar 313 when the raising and lowering operation inducing bar 313 rotates, And is lifted up and down.

A separate upper end of the guide shaft 318 is connected to both sides of the ascending and descending frame 314 and a lower end of the guide shaft 318 is connected to a mounting frame 319 for mounting a pressing roller 315 described later.

At this time, the guide shaft 318 is slidably engaged with the lifting and lowering frame 314, and is fixedly coupled to the mounting frame 319. The guide shaft 318 is provided with a spring-shaped gap forming member 318a for maintaining a gap between the ascending and descending frame 314 and the mounting frame 319.

For reference, the gap forming member 318a can be deformed into various shapes if it has a structure capable of maintaining the spacing between the rising and falling frame 314 and the mounting frame 319 in addition to the spring.

A pressing roller 315 is provided under the mounting frame 319. The pressing roller 315 serves to keep the rotation of the object P and fix the upper part of the object P at the time of cutting And a pair is provided at intervals.

A pushing cutter 400 is provided on the front side of the mounting frame 319. The pushing cutter 400 serves as a cutting tool for cutting the object P. The pushing cutter 400 has a cutting blade structure of a circular plate, do.

Unlike the conventional multi-cutting device in which the cutting blade is rotated through the driving motor, the pusher 400 of the present invention does not have a separate driving source.

The surface machining means 500 of the cut surface is further provided with a cut surface machining means 500 on one side of the main body 100. The cut surface machining means 500 cuts the cut target And a rotation guide lever 520 is coupled to one end of the installation block 510. The other end of the installation block 510 is connected to the other end of the installation block 510, The machining tip 530 is connected to the rotation shaft (not shown) of the rotation induction lever 520 and is rotated.

At this time, when the machining tip 530 is rotated to one side, it is contacted to the surface of the cut surface of the object P and is rotated in the opposite direction, so that the contact with the object is released.

Hereinafter, the operation of the present invention and the unique effects generated in the process will be described below.

First, as shown in FIG. 3, the object to be processed P is placed on the lower support roller 212 and the position of the cutting point is adjusted.

When the drive motor 222 of the workpiece turning means 200 is operated, the lower support rollers 212 and the side support rollers 214 connected to each other through the chain C rotate simultaneously, .

5 and 6, when the rotary knob 317 of the object pressing means 300 is turned, the upward and downward movement inducing bar 313 is rotated by the engagement between the bevel gears 312a and 313a, As a result, the lifting and lowering frame 314 is lowered. As the lifting and lowering frame 314 is lowered, the pressurizing roller 315 including the mounting frame 319 and the press cutting device 400 are lowered together.

When the pressing roller 315 and the pushing cutter 400 come into contact with the upper portion of the object P in the descending process, they are rotated together by the rotational force of the object P to be processed.

In this state, when the raising and lowering frame 314 is continuously lowered, the pressing roller 315 presses the object P, and the pressing cutter 400 presses the cutting point of the object P.

As the pressing roller 315 presses the object P, the object P is rotated in a state in which the position is stably fixed by the pressing roller 315 and the lower supporting roller 212. [

As the pushing cutter 400 presses the work P in the state where the work P is rotating, the cutting is performed along the outer circumferential surface of the work P as shown in FIG. 7. In this process, The cutting is performed by pressing the cutting point by the pressing force.

Consequently, the shape in which the cutting end of the object P is cut down, that is, the diameter A of the end of the object to be processed is reduced compared with the original diameter A '.

As the end of the object to be machined is cut in this way, the end edge is prevented from being brought into contact with the threaded member at the time of insertion into the threaded member, so that it has the same structure as the end face machining of the existing object.

That is, unlike the existing apparatus in which the cutting blade is rotated by the driving motor, the present invention is a structure in which the cutting is performed due to the rotation of the object in the process of simply pressing the object. It will be.

If the pushing cutter 400 is pressed by the separate driving motor, the cutting force of the pushing cutter 400 is increased. As a result, the cutting is completed before sufficient pressure is applied. Therefore, The reduction phenomenon does not occur.

In the state where the cutting of the object P is completed, the surface of the cut surface becomes the inclined state (R) by the blade angle of the pushing cutter 400. At this time, The rotation of the rotation induction lever 520 of the workpiece 500 causes the machining tip 530 to rotate so that the surface of the cut surface is made flat while being in contact with the surface of the cut surface of the object P to be processed.

In this process, the operator adjusts the degree of rotation of the rotation induction lever 520 to determine the degree of surface machining of the cut surface. For reference, the operator does not directly operate the rotation induction lever 520, The machining tip 530 may be automatically rotated by the set angle.

As described above, according to the present invention, the cutting of the object to be processed and the reduction of the end diameter can be performed simultaneously by only one cutting machine,

The need to replace the cutting blade for cutting and the cutting blade for cotton is eliminated.

In addition, since the cutting operation, the diameter reduction operation, and the surface machining operation of the cut surface can all be performed by a single device, the overall operation efficiency is also increased.

Claims (1)

An object to be processed which is mounted on the main body and rotated to rotate the object to be processed; an object to be pressed and raised and raised and raised above the object to be processed; A multi-cutting apparatus comprising a pressing cutter for cutting an object to be machined to be moved,
The object to be processed is pressed,
An upper and lower frame connected to the upper and lower driving members, an installation frame disposed below the upper and lower frames and provided with a pressing roller at a lower portion thereof, And a gap forming member installed on the guide shaft to maintain a gap between the rising frame and the mounting frame,
The object rotating means includes:
A supporting roller on which the object to be processed is seated, and a rotation inducing portion for rotating the supporting roller,
The supporting roller includes a pair of lower supporting rollers which support the lower portion of the object to be processed and are disposed in parallel with the object to be processed and a pair of upper and lower supporting rollers disposed on the upper side of the lower supporting roller, A support roller,
The lifting and lowering driving member includes:
A plurality of support bars provided at a rear side of the main body in a vertical direction,
And a lifting and lowering operation guide bar provided between the supporting bars and lifting and lowering the lifting and lowering frame as the lifting and lowering frame rotates and bolts with each other,
A cutting finishing member including a rotation induction lever and a processing tip connected to the rotation induction lever is provided at one side of the main body
Wherein the multi-cutting device comprises:

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