KR101638841B1 - Auto cutting machine for pipe - Google Patents

Abstract

The present invention relates to an automatic pipe cutting machine for greatly improving cutting quality by adopting a trimming part that enables trimming for a cutting pipe to guarantee properties of a cut surface after cutting a pipe when the pipe, which is automatically supplied from a pipe supply part, is cut in a set length. More specifically, the automatic pipe cutting machine comprises: a pipe supply part which includes a main pusher; a cutting part which includes a cutting cutter, a cutting cutter advancing and retreating unit, and a raw pipe rotary unit, and manufactures a cutting pipe by cutting a raw pipe to be cut that is transported from the pipe supply part; the trimming part which includes a trimming cutter and a trimming cutter advancing and retreating unit; a controller which controls the pipe supply part, the cutting part, and the trimming part; and a base on which the pipe supply part, the cutting part, and the trimming part are installed.

Description

Pipe auto-cutting machine {AUTO CUTTING MACHINE FOR PIPE}

The present invention relates to a pipe auto-cutting machine,

More specifically, in order to cut a raw pipe continuously supplied automatically from a pipe supply unit to a predetermined length, a trimming unit for trimming a next cutting pipe is introduced in order to ensure high quality characteristics of the cutting surface And more particularly, to a pipe autocutting machine in which cutting quality is remarkably increased because a fixed raw cutting portion and a trimming portion cutter are used and a single raw pipe is rotated and cut.

Conventional pipes, especially metal pipe cutting machines and associated Donny technologies

Registered utility model No. 20-0466661 (Registration date April 24, 2013) There is [automatic pipe cutting device]

This registration system is designed to automatically cut pipes of various sizes and automatically cuts pipes of various sizes. By configuring a wheel control unit to automatically cut pipes of various sizes, If possible,

In addition, by providing a plurality of mounting brackets for mounting and supporting the oxygen cutter, the driving motor, and the switch unit so as to automatically cut pipes of various sizes, it is possible to improve the cutting precision of the pipe, The operator's injury can be prevented in advance.

However, this registration design is not related to the continuous supply and mass cutting characteristics of pipes.

In addition, there is a patent registration No. 10-1079121 (registered date October 27, 2011) [wire cutting device of fine metal pipe]

The present invention relates to a wire cutting apparatus for a fine metal pipe that automatically cuts a plurality of fine metal pipes to a predetermined length, and more particularly, to a wire cutting apparatus for cutting a plurality of metal pipes, Thereby eliminating the need for a separate burr removing step and significantly reducing the cutting defects.

However, due to the nature of the wire cutting, the end of the cutting pipe is irregularly irregular and sharp, so that a post-work process is inevitable to remove it, so that it is not related to a technique of providing a precise and smooth cut surface. have.

Next, there is a utility model registration No. 20-0473148 (registration date June 05, 2014) [metal pipe cutting device]

This registration design suggests a new structure of a metal pipe cutting device that can cut a small-diameter metal pipe to a certain length quickly.

However, the technology of this registration design also has a cutting blade that rotates the cutter, so that the cutting face of the cutting pipe is inevitably irregular and irregular in shape and inevitably requires post-processing.

In addition, there is patent registration No. 10-1456459 (registration date October 24, 2014) [automatic pipe cutting device]

This patent discloses a pipe automatic cutting apparatus that not only automates the operation to cut the pipe uniformly, but also can smoothly supply and clamp the pipe during the work to efficiently cut the pipe,

Particularly, along with the horizontal movement according to the pipe supply, means for guiding the vertical movement of the cutter in the turning operation for cutting can be constituted, so that cutting work of various types of pipes is facilitated and the quality of the finished product is improved.

However, this patent also uses a rotating cutting edge, so that the cut surface of the cutting pipe is not smooth, which is not related to the production of high quality cutting pipe.

Accordingly, in cutting a raw pipe continuously supplied automatically from a pipe supply part to a predetermined length, a trimming part for trimming the next cutting pipe is introduced in order to guarantee the high quality characteristics of the cutting surface And more particularly to a pipe autocutting machine in which cutting quality is remarkably improved because a method of cutting a single raw pipe using a fixed cutter and a cutter of a trimming part is adopted.

Further, according to the present invention, the pipe feeder feeds the pipe from the first high-speed feed mode to the second low-speed feed mode, and the cutting workbench of the cutting portion descends after completion of feeding of the cutting section of the pipe, And to provide a pipe auto-cutting machine that has a forward-and-backward stopper that advances in accordance with the length of the pipe, and that assures improved productivity and precision in cutting length.

In addition, the present invention includes a push bar provided on a bogie-type transport block in which a main pusher of a pipe feeder moves along a feed rail, wherein the first-order fast feed mode is performed by operation of a feed block, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a pipe auto-cutting machine in which a high-speed feed and a precision feed are simultaneously performed by a forward-and-backward plunger connecting the feed blocks.

In order to achieve the above object, a pipe auto-cutting machine according to the present invention comprises:

A pipe supply portion including a main pusher;

A cutting portion for cutting the raw pipe fed from the pipe feeding portion to manufacture a cutting pipe, the cutting portion including a cutting cutter, a cutting cutter advance and retract means, and a raw pipe rotating means;

A trimmer including a trimmer cutter and a trimmer cutter advancing / retreating means;

A controller for controlling the pipe supplying section, the cutting section, and the trimming section; And

A base provided with a pipe feeding portion, a cutting portion, and a trimming portion;

.

Further, in the pipe auto-cutting machine according to the present invention

Wherein the cutting feed pipe has a length corresponding to two or more cutting pipes, and the pipe feeder further includes a sub-pusher for feeding the pipe to the cutting portion when cutting the corresponding portion of the last cutting pipe,

Wherein the cutting portion has a cutting worktable having a retreat stopper at a rear end thereof,

The main pusher of the pipe feeder is driven by a controller to a secondary low speed conveying mode corresponding to a length of 40 to 1% after the first high speed conveying mode corresponding to a length of 60 to 99% is controlled to feed the cutting section of the raw pipe,

The stopper is moved backward after completion of feeding the cutting section of the raw pipe, advances to the cutting section length again when the raw pipe cutting section is supplied,

The main pusher includes a feed rail, a feed block moving along the feed rail, a push bar, and a forward / backward plunger connecting the feed bar and the push bar,

It is preferable that the push bar is advanced by the plunger in the second low-speed feed mode.

The pipe auto-cutting machine according to the present invention is characterized in that, in cutting a raw pipe continuously supplied continuously in a pipe supply section to a predetermined length, it is possible to trim the next cutting pipe after cutting in order to ensure high- In particular, the cutting quality can be improved remarkably by introducing a trimming section for cutting a raw pipe and cutting a single raw pipe by using a cutter of a fixed cutting section and a trimming section. In addition, After the feed mode, the pipe is supplied to the second low speed feed mode. The cutting work table of the cutting section is moved backward after completion of feeding of the cutting section of the pipe. Further, when the next pipe cutting section is supplied, the feed stopper is moved forward to meet the cutting section length. And accuracy of cutting length. Further, Wherein the pusher comprises a push bar mounted on a bogie-type transfer block moving along the transfer rail, the primary fast transfer mode being effected by the operation of a transfer block, and the second low speed transfer mode being effected by a push- So that high-speed feeding and precision feeding can be performed at the same time.

1 is a schematic front view of a pipe autocutting machine according to the present invention;
2 is a schematic plan view of a pipe autocutting machine according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the pipe auto-cutting machine A according to the present invention, an unambiguous approximate direction reference will be described with reference to FIG. 1, which is a front view, and FIG. 2,

The cutting work table 23 side of the cutting section 20 is set to the front side and the pipe feed section 10 side is set to the rear side. Unless otherwise specified in the description and claims of the invention relating to other drawings, Is specified.

As shown in FIGS. 1 and 2, the pipe auto-cutting machine A according to the present invention has a large

The pipe feeder 10 including the main pusher 11,

A raw pipe Pr which is fed from the pipe feeder 10 and which includes a cutting cutter 21, a cutting cutter advancement means 21m and a raw pipe Pr rotating means 20m, A cutting portion 20 for cutting pipe Pc,

A trimmer 30 including a trimmer cutter 31 and a trimmer cutter advancing / retracting means 31m,

A controller (C) for controlling the pipe supplying section, the cutting section, and the trimming section, and

And a base (B) provided with a pipe supply portion, a cutting portion, and a trimming portion.

The pipe supply unit 10 is provided at one side of the base B with a stay pipe for the continuous supply of the raw pipe Pr.

Further, the stay is composed of first and second stay bars (15, 17)

When the empty space is detected by the supply of the transferring die 11B of the pipe Pr by the sensor s17 provided on the second stay 17, the first stay 15 has a retaining part having the ascending / So that the lifting and lowering body E15 is moved by the lifting body C.

Furthermore, the retention portion is composed of first and second stage retention portions 15A and 15B so as to ensure smooth supply characteristics without entangling at the same time as the continuous supply of the pipe.

1, the first-stage retention section 15A has an inclined structure, and the second-stage retention section 15B and the ascending / descending body E15 arranged adjacent to the first-stage retention section 15B, that is, And the pipe Pr is rolled and conveyed to the elevating portion 15e.

The two-stage retention portion 15B also has a tilting structure so that the furnace pipe supplied from the first-stage elevating portion 15e sequentially rolls up and is arranged adjacent to the second stay 17, that is, And is supplied to the unit 15E.

The furnace pipe Pr supplied to the second stay 17 by the second stage elevating portion 15E is caught by the stopper 17a while being stopped along the inclined surface 17s of the second stay to the standby portion 17A And the detection sensor s17 at the beginning of the inclined surface are illustrated as being protruded for convenience in the figure (in the one-dot chain line ellipse in Fig. 1), but the actual equipment has an arrangement not obstructing the transfer of the pipe.

The standby portion 17A of the second stay 17 has a discontinuous structure such as a bar type and is finally disposed on the conveying die 11B and the pipe Pr is conveyed by the main pusher 11, (Pc) and the transfer die is empty,

If it is detected by various methods such as the sensor s20 of the cutting unit 20,

One path pipe Pr is again transferred to the transfer die 11B by the transfer section 17B of the second stay 17 having the overlapping section with the stopper 17a of the standby section 17A.

The conveying section 17B includes a lift panel 17P having an inclined surface 17S and one end of the lift panel has an overlapping section with the stopper 17a of the standby section 17A and the other end of the lift panel 17B has a conveying die 11B ),

When the lift panel is lowered, one end portion is located lower than the stopper 17a,

At the time of the rise, it is positioned higher than the stopper 17a, and the hearth pipe Pr hanging on the stopper is heard

The pipe is configured to be transferred to the transfer die via the other end arranged at the same height as the rolling transfer die 11B on the inclined surface 17S.

And a main pusher 11 for moving the pipe Pr located at the transfer die 11B of the pipe supply unit 10 back and forth to the cutting unit 20. [

The main pusher 11 has a conveyance block 11A which is moved along a conveyance rail 11C by a driving means such as a timing belt 11c and is brought into contact with a rear end of a bypass pipe Pr And has a push bar 11a.

The main pusher 11 is moved by the controller C to the first high-speed feed mode (conveyed to 'Sh') corresponding to a length of 60 to 99% of the cut length of the raw pipe Pr, The cutting section of the raw pipe is controlled to feed the cutting section of the raw pipe in the second low-speed feed mode ('Sℓ'), which corresponds to the length of%, so that productivity can be ensured by high-speed feed, .

Further, the main pusher 11 moves along the conveying rail 11C after the conveying block 11A proceeds to the first-order fast moving mode,

The push bar 11a connected to the transport block 11A through the plunger 11b and pushing the end portion of the pipe is fed through the advancing and retreating plunger 11b to proceed in the second low speed feed mode .

A cable chain c11 having a power supply line, a signal cable, and a pneumatic tube for advancing and retracting the plunger 11b is connected to the transport block 11A of the main pusher 11.

On the other hand, in order to ensure productivity, the cut-off transfer pipe Pr has a length corresponding to two or more cutting pipes Pc,

The pipe supply part 10 further includes a sub-pusher 13 for completely transferring the pipe to the cutting part 20 at the time of cutting the corresponding part of the last cutting pipe Pc to prevent material waste.

The sub pusher 13 includes a platform 13A that is elevated by an elevator means 13B constituted by an actuator or the like using a motor or a pneumatic cylinder and a push bar 13a provided on the platform to move forward and backward by the plunger 13b ).

When it is judged by the sensor s20 and the controller C of the cutting portion 20 that the last cut pipe Pc is cut by the corresponding portion of the platform B and the platform 21 positioned immediately after the cutting portion 20 Is raised by the elevating means 13B,

The push bar 13a located at the rear end of the pipe Pr is moved by the plunger 13b to the cutting part 20 and the pipe is loaded into the cutting part 20 at the last cutting step.

The cutting part loading of the pipe Pr into the last cutting step may be performed entirely by the sub pusher 13 alone or may be carried out by the sub pusher after transferring by the main pusher 11 for a predetermined period.

Actually, the present invention is designed in the latter case, and the operation of the plunger 11b for the second low-speed mode of the main pusher 11 at this time can be omitted if necessary.

The cutting portion 20 for cutting the furnace pipe Pr into a cutting pipe Pc charged by the main pusher or the main pusher and the sub pusher is connected to the base B and has a height corresponding to the feed die 11B As shown in Fig.

The cutting work table 23 has a pedestal 23a which is tilted to one side to allow the cutting pipe to fall down to the discharge portion 40 due to its own weight after the cutting is completed, as shown in the upper left one- And has an end structure of an alphabet 'L' character-like shape having a barrier wall 23b on the other side.

The cutting work table 23 has a retracting stopper 25 connected to the plunger 25a so as to be retracted after the completion of the pipe loading, particularly after completion of the second low-speed mode feed, and again after completion of cutting pipe Pc machining.

That is, the advance / retreat stopper 25 is retracted after the completion of the feeding of the cutting section of the raw pipe, and advances to the cutting section length again when the raw pipe cutting section is supplied.

When the charging of the pipe Pr to the cutting work table 23 is completed by the main pusher 11 or the main pusher and the sub pusher 13, the retracting stopper 25 connected to the plunger 25a is retracted, So as not to interfere with the rotation of the pipe by the rotation means 20m,

(Not shown) (which can be mechanically or electronically) before the driven pulley m2, which is connected to the drive motor m1 constituting the rotating means 20m via a belt, a chain or the like,

The chuck 27 is actuated to engage with the pipe Pr so that the rotational force of the rotating means is transmitted to the pipe by the pipe as shown schematically in the upper two-dot chain line in Fig.

The cutting cutter 21 is advanced by the advancing and retreating means 21m during the rotation by the rotating means 20m so that the cutting cutter 21 is brought into contact with the pipe Pr to be cut and the pipe Pr is first contacted with the pipe Pr at the start of the cutting process Cutting is completed by the cutting cutter 21 which moves finely to one side as set

When the cutting pipe Pc is machined, it falls down along the inclination of the pedestal 23a of the cutting work table 23 by its own weight and falls into the discharge part 40.

Thereafter, a trimming unit 30 is provided for cutting the next cutting pipe. The trimmer 31 of the trimming unit is moved by the advancing and retreating unit 31m to perform a trimming process.

The cutting portion 20 and the trimming portion 30 also have position adjustment blocks that are individually or integrated so as to be changeable according to the specifications of the cutting pipe.

Particularly, in the position adjusting block b shown in FIG. 1, the front and rear adjusting block b1 moves along the front and rear conveying rails so that the advancing / retracting means 21m and the cutting cutter 21 of the cutting portion 20 and the trimming portion are integrally adjusted ,

As shown in FIG. 2, the left and right adjusting block b2 is moved along the left and right feed rails to adjust the position of the cutting part and the trimming part, respectively.

As shown in the lower one-dot chain line block in Fig. 1, when a pipe pipe Pr cut into three cutting pipes Pc in the pipe auto-cutting machine A according to the present invention is transported from the pipe supply unit 10,

After the first trimming by the cutting cutter 21, particularly the cutting cutter 21 having the one-side outer oblique cutting edge 21a, proceeds at the time of pipe insertion by the sensing control of the cutting part sensor s20 and the controller C, The second trimming by the trimming cutter 31 having the other outer oblique cutting edge 31a proceeds to discharge the first and second puncture pipes p1 and p2 to the puncture receptacle 41,

The front end portion of the first cutting pipe Pc is formed and the first cutting process of the pipe is proceeded.

Then, as shown in the lowermost one-dot chain line ellipse of Fig. 1, a trimming pipe (p2) having inclined cutting edges corresponding to the outer oblique cutting edges (21a) and (31a) (Pc) cutting process proceeds.

After the delivery of the pipe to the first, second cutting pipe is made by the main pusher 11,

The transfer of the third last cutting pipe Pc is completed through the first feed by the main pusher 11 and the second feed by the sub pusher 13 so that the cutting process is performed.

After the last cutting pipe Pc is discharged, the remaining tubular trunk pipe is discharged as it is. After the third trunk pipe p2 is discharged by the trimming unit 30, the remaining trunk tubular pipe p3 is discharged to the receptacle 41 Can be achieved.

This is because a single pipe Pr is generated because the control program of the controller C is not manufactured in a high-efficiency manner in the case where the cutting process is performed in a number equal to or greater than four cutting pipes Pc, It is because it is superior.

Also, for the same reason, the situation in which the first puncturer pipe p1 is trimmed by the cutting cutter 21 when the pipe is first inserted is also for the same reason. However, if necessary, the generation of the second punctured pipe p2 in front of the first punctured pipe p1 or the third punctured pipe p3 can be adjusted so as to be non-evolving as needed.

The forward and backward movement of the plungers 11b, 13b, and 25a can be achieved by pneumatic pressure.

The feed position of the pipe pipe Pr and the cut length of the feed pipe by the trimming unit 30 are sensed and controlled by the sensor s20 and the controller C of the cutting unit.

In the above description, conventionally well-known techniques relating to the material, dimensions, specifications, cutter specifications, controller, push bar, advancing and retracting means of the cutting portion, rotating means, chuck, etc., are omitted from the above description, Guessing and reasoning can be reproduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Substitutions should be construed as falling within the scope of protection of the present invention.

A: Cutting machine B: Base
C: Controller Pr: raw pipe
Pc: Cutting pipe p1, p2, p3: Pitch pipe
10: pipe supply part 11: main pusher
11A: Feed block 11B: Feed die
11C: Feed rail 11a: Push bar
13: Surf pusher 13a: Push bar
13A: platform 13B: elevating means
15: First stay 17: Second stay
20: cutting portion 30: trimming portion

Claims (4)

A pipe supply portion including a main pusher;
A cutting unit for cutting the raw pipe fed from the pipe feeding unit to manufacture a cutting pipe, the cutting unit including a cutting cutter, a cutting cutter advancing means and a pipe rotating means;
A trimmer including a trimmer cutter and a trimmer cutter advancing / retreating means;
A controller for controlling the pipe supplying section, the cutting section, and the trimming section; And
A base provided with a pipe feeding portion, a cutting portion, and a trimming portion;
, ≪ / RTI >

Wherein the cutting transfer pipe has a length corresponding to two or more cutting pipes,
Wherein the pipe feeder further comprises a sub-pusher for feeding the pipe to the cutting portion when cutting the corresponding portion of the last cutting pipe. A pipe supply portion including a main pusher;
A cutting unit for cutting the raw pipe fed from the pipe feeding unit to manufacture a cutting pipe, the cutting unit including a cutting cutter, a cutting cutter advancing means and a pipe rotating means;
A trimmer including a trimmer cutter and a trimmer cutter advancing / retreating means;
A controller for controlling the pipe supplying section, the cutting section, and the trimming section; And
A base provided with a pipe feeding portion, a cutting portion, and a trimming portion;
, ≪ / RTI >

Wherein the cutting portion has a cutting worktable having a retreat stopper at a rear end thereof,
The main pusher of the pipe feeder is moved to the second low speed conveying mode corresponding to the length of the remaining 40 to 1% after the first high speed conveying mode corresponding to the length of 60 to 99% Controlled,
Wherein the stopper is retracted after completion of feeding of the cutting section of the pipe, and advances back to the length of the cutting section when the next pipe cutting section is supplied. 3. The method of claim 2,
The main pusher includes a feed rail, a feed block moving along the feed rail, a push bar, and a forward / backward plunger connecting the feed bar and the push bar,
And the push bar advances by the plunger in the second low speed feed mode. 4. The method according to any one of claims 1 to 3,
The pipe supply unit 10 includes a stay which is provided at one side of the base B for continuous supply of raw pipes Pr and has a pipe therein,
The staying zone is composed of first and second stay bars (15, 17)
When the empty space is detected by the supply of the transferring die 11B of the pipe Pr by the sensor s17 provided on the second stay 17, the first stay 15 has a retaining part having the ascending / The elevating member E15 is configured to move in accordance with the movement of the lifting member E,
The retention portion of the first retention base 15 is composed of first and second retention portions 15A and 15B to ensure smooth supply characteristics without being entangled with the continuous supply of the furnace pipe,
The first stage retention section 15A has a tilted structure so that the pipe Pr is rolled to the first stage elevation section 15e of the ascending / descending body E15 arranged adjacent to the second stage retention section 15B,
The two-stage retention portion 15B has a two-stage elevation portion (hereinafter referred to as " second-stage retention portion ") of the ascending / descending body E15 having a tilted structure and being supplied from the first- 15E,
The furnace pipe Pr supplied to the second stay 17 by the second stage elevating portion 15E is caught by the stopper 17a while being stopped along the inclined surface 17s of the second stay to the standby portion 17A A pipe auto-cutting machine.

Images