CN218135594U - Flame cutting device capable of being pre-cleaned - Google Patents

Abstract

The application discloses can be abluent flame cutting device in advance, can carry out the gas cutting to a work piece, can be abluent flame cutting device in advance includes a gas cutting piece and a cleaning member in advance, the gas cutting piece forms a first air inlet, a second air inlet, a jet and a gas blowing mouth, the gas cutting piece forms the second air inlet passes through pipeline and a combustion gas jar intercommunication, the gas cutting piece is set up can with follow the leading-in combustion gas of second air inlet ignites into high temperature flame, and the jet is used for spraying high temperature flame, the high temperature flame that the jet sprays is to aiming at the work piece burns, the gas cutting piece forms first air inlet passes through pipeline and an oxygen suppliment jar intercommunication, makes the oxygen entering of oxygen suppliment jar the gas cutting piece, the cleaning member includes a cleaning body and an injection piece in advance, the injection piece is set up to pass through the nozzle emission laser, be used for getting rid of the spot of work piece surface.

Description

Flame cutting device capable of being pre-cleaned

Technical Field

The utility model relates to a gas cutting equipment especially relates to abluent flame cutting device in advance.

Background

Gas cutting means that gas is used for generating flame to preheat metal to be cut to a burning point, the metal is violently combusted in oxygen to form slag, the slag generated by combustion is blown off under the blowing of high-pressure oxygen, and constructors control a cutting torch to move to form a cutting seam, so that the metal is cut into a required shape or size. Among the gases capable of generating a flame are acetylene, liquefied petroleum gas, hydrogen, and the like.

Rust, dirt, oil stains and other stains are often attached to the metal surface, and the stains can prevent oxygen from entering the gas cutting part, so that the gas cutting is prevented from being carried out. Therefore, in order to ensure that the gas cutting can be smoothly performed, the constructor needs to remove the dirt on the metal surface before performing the gas cutting. At present, the commonly adopted cleaning mode is to wipe the metal surface before gas cutting by cloth or paper towel to remove stains, but rust cannot be wiped clean, and the part of the oil stain still remains on the metal surface after being wiped, so the cleaning mode has low efficiency and low cleaning degree.

The existing gas cutting equipment adopts constructors to hold a cutting torch and drive the cutting torch to move, so as to cut metal into a preset shape. However, in the moving process, the constructor cannot drive the cutting torch to stably move, so that the cutting opening is uneven.

In-process that gas cutting was carried out to the metal at flame, the slag that oxygen blown off can produce the phenomenon of splashing, because the slag that the high temperature burning produced, the temperature is higher, splashes constructor on one's body, can cause the scald to constructor to the slag floats in construction environment's air, breathes and then in the respiratory track along with constructor, can cause the damage to constructor's respiratory track health.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an advantage lies in providing abluent flame cutting device in advance, the utility model discloses before can carrying out the gas cutting to the metal, clean metal surface's spot for spots such as metal surface's rust, greasy dirt are clear away, make the gas cutting go on smoothly.

The utility model has the advantages of a can abluent flame cutting device in advance is provided, the utility model discloses can adsorb the slag that the gas cutting in-process produced and collect, prevent that the slag splashes.

In order to achieve the utility model discloses above at least one advantage, the utility model provides a abluent flame cutting device in advance can carry out gas cutting to a work piece, abluent flame cutting device in advance includes:

the gas cutting piece is provided with a first air inlet, a second air inlet, a jet orifice and a blowing port, wherein the jet orifice and the blowing port formed by the gas cutting piece are arranged to be aligned with the surface of the workpiece, the second air inlet formed by the gas cutting piece is communicated with a combustion gas tank through a pipeline, so that combustion gas in the combustion gas tank enters the gas cutting piece, the gas cutting piece is arranged to ignite the combustion gas introduced from the second air inlet into high-temperature flame, the jet orifice is used for jetting the high-temperature flame, the high-temperature flame jetted by the jet orifice burns the aligned workpiece, the first air inlet formed by the gas cutting piece is communicated with an oxygen supply tank through a pipeline, so that oxygen in the oxygen supply tank enters the gas cutting piece and is jetted through the blowing port, and slag generated by the workpiece combustion is blown away by the high-temperature flame;

the pre-cleaning component comprises a cleaning body and a spraying piece, wherein the spraying piece is connected to the cleaning body and is installed on the gas cutting piece, the spraying piece is provided with an emitting opening, the emitting opening is aligned to the surface of the workpiece, and the spraying piece is arranged to emit laser through the emitting opening so as to remove stains on the surface of the workpiece.

According to the utility model discloses an embodiment, the flame cutting device that can wash in advance still includes an arc orbit area and changes the subassembly, arc orbit area changes the subassembly and includes an installed part and one and drives and change the piece, gas cutting piece eccentrically connect in the installed part, the installed part be can drive connect in drive and change the piece, the installed part is used for driving gas cutting piece with it is rotatory to spray.

According to the utility model discloses an embodiment, the flame cutting device that can wash in advance still includes a supporting member, the supporting member includes a base, a connecting piece and an extension, the base is installed in a tip of connecting piece, the connecting piece is kept away from a tip of base is installed the extension, the gas cutting piece with the injection piece passes through drive the piece install in the extension.

According to the utility model discloses an embodiment, the extension includes a supporting part and a connecting portion, the supporting part forms an at least first guide rail, connecting portion slidable install in first guide rail, the connecting piece is kept away from a tip connection of base the supporting part, drive the piece install in connecting portion, the flame cutting device that can wash in advance still includes a straight line orbit area and moves the subassembly, the straight line orbit area moves the subassembly and includes that a horizontal area moves the piece, connecting portion by driveably connect in horizontal area moves the piece, horizontal area moves the piece and is used for driving connecting portion are along lateral shifting.

According to the utility model discloses an embodiment, the straight line orbit area moves the subassembly and still includes that a vertical area moves the piece, the connecting piece by drivenly connect in vertical area moves the piece, vertical area moves the piece and is used for driving the connecting piece is along longitudinal movement, the base forms an at least second guide rail, the connecting piece slidable install in the second guide rail, the second guide rail is used for injecing the moving direction of connecting piece.

According to the utility model discloses an embodiment, the flame cutting device that can wash in advance still includes an interval adjustment piece, the connecting piece includes a movable part and a fixed part, the movable part telescopically install in the fixed part, extend the piece install in the movable part is kept away from a tip of fixed part, the fixed part is kept away from a tip of movable part install in the base, the interval adjustment piece installed in the fixed part with between the movable part, be used for driving the movable part is along vertical removal, be used for the adjustment pass through the installed part install in extend on the piece gas cut piece with interval between the work piece.

According to the utility model discloses an embodiment, but precleaned flame cut device still includes a year thing subassembly, it includes a year thing seat to carry the thing subassembly, it forms a loading end to carry the thing seat, is used for the bearing the work piece, the gas cutting piece forms the jet nozzle with it forms to carry the thing seat the loading end sets up relatively.

According to the utility model discloses an embodiment, carry the thing seat form one collect the chamber and with collect an opening of chamber intercommunication, carry the thing seat in the inner wall of collecting the chamber forms one and supports protruding edge, support protruding edge with collect the chamber and fall into an upper portion, a lower part and a middle part, and give upper portion with the opening intercommunication, support protruding edge formation the loading end, the lower part be used for right the piece that the work piece gas cutting produced is collected.

According to the utility model discloses an embodiment, it still includes a negative pressure formation piece to carry the thing subassembly, the negative pressure formation piece pass through the pipeline with the lower part intercommunication makes the lower part forms the negative pressure.

According to the utility model discloses an embodiment, the degree of depth on upper portion is set up can with the work piece hide in upper portion.

Drawings

Fig. 1 shows a schematic structural view of the pre-cleanable flame cutting apparatus of the present invention.

Fig. 2 shows a schematic structural diagram of a part of the flame cutting device capable of pre-cleaning according to the present invention.

Fig. 3 shows a side view of the precleanable flame cutting apparatus of the present invention.

Fig. 4 shows a cross-sectional view of the precleanable flame cutting apparatus of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms are not to be construed as limiting the invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 2, a pre-cleanable flame cutting apparatus capable of gas cutting a workpiece 900 according to a preferred embodiment of the present invention will be described in detail below.

The pre-cleanable flame cutting apparatus includes a torch cutting member 10 and a pre-cleaning member 20.

The gas cutting member 10 forms a first gas inlet 1001, a second gas inlet 1002, a jet 1003 and a blow port 1004, wherein the jet 1003 and the blow port 1004 formed in the gas cutting member 10 are disposed to be aligned with the surface of the workpiece 900.

The second gas inlet 1002 formed in the gas cutting member 10 is communicated with a combustion gas tank 800 through a pipe, so that the combustion gas in the combustion gas tank 800 enters the gas cutting member 10. The gas cutting member 10 is provided to ignite the combustion gas introduced from the second gas inlet 1002 into a high temperature flame, and the injection port 1003 is configured to inject the high temperature flame, whereby the high temperature flame injected from the injection port 1003 burns the aligned workpiece 900.

The first gas inlet 1001 formed in the gas cutting member 10 is communicated with an oxygen supply tank 700 through a pipeline, so that oxygen in the oxygen supply tank 700 enters the gas cutting member 10 and is sprayed through the gas blowing port 1004 to blow away slag formed by combustion of the workpiece 900 by high-temperature flame, so as to form a notch, thereby achieving gas cutting of the workpiece 900.

The pre-cleaning member 20 includes a cleaning body 21 and a spray member 22. The injection member 22 is connected to the cleaning body 21, and the injection member 22 is attached to the gas cutting member 10. The spray member 22 has a spray opening 2201, wherein the spray opening 2201 is aligned with the surface of the workpiece 900. The injection member 22 is configured to emit laser through the emission port 2201 to remove stains, such as oil stains, rust stains, etc., on the surface of the workpiece 900. The laser emitted from the pre-cleaning member 20 through the emission port 2201 can heat the surface of the workpiece 900, so that the stains attached to the surface of the workpiece 900 are removed.

As will be appreciated by those skilled in the art, oil contamination of the surface of the workpiece 900 can impede oxygen access to the gas cutting site, resulting in impeded gas cutting. In order to enable the gas cutting member 10 to smoothly gas cut the workpiece 900, before the gas cutting member 10 performs gas cutting on the workpiece 900, the pre-cleaning member 20 heats the surface of the workpiece 900, so as to vaporize oil stains attached to the surface of the workpiece 900, and thus the workpiece 900 is cleaned, and the gas cutting member 10 sprays high-temperature flame and oxygen to the workpiece 900 cleaned by the pre-cleaning member 20, so that the workpiece 900 can be smoothly gas cut.

In an embodiment, the pre-cleaning member 20 is implemented as a laser cleaner, wherein the cleaning body 21 is implemented to comprise a laser and the spray member 22 is implemented to comprise a cleaning head.

Referring to fig. 1-2, further, the pre-cleanable flame cutting apparatus further includes an arc track rotation assembly 30.

Specifically, the arc track rolling assembly 30 includes a mounting member 31 and a driving member 32. The gas cutting element 10 is eccentrically connected to the mounting element 31, the mounting element 31 is drivingly connected to the driving element 32, so that after the mounting element 31 is driven by the driving element 32, the mounting element 31 drives the gas cutting element 10 to rotate, so that the gas cutting element 10 performs gas cutting on the workpiece 900 and the gas cutting element 10 performs curvilinear motion, so that the workpiece 900 can be gas cut into a semicircular shape or a circular shape.

The ejector 22 is attached to the mounting member 31 so as to be deformable.

In one embodiment, the driver 32 is implemented to include a motor.

Referring to fig. 1 and 3, further, the pre-cleanable flame cutting apparatus further includes a supporting member 40.

The support member 40 includes a base 41, a connecting member 42 and an extending member 43.

The base 41 is mounted to an end of the connector 42, and the connector 42 mounts the extension 43 away from an end of the base 41. The gas cutting member 10 and the injection member 22 are mounted to the extension member 43 via the driving member 32.

Preferably, the connecting member 42 includes a movable portion 421 and a fixed portion 422. The movable portion 421 is telescopically mounted to the fixing portion 422, the extending member 43 is mounted to an end of the movable portion 421 away from the fixing portion 422, and an end of the fixing portion 422 away from the movable portion 421 is mounted to the base 41.

Preferably, the extension member 43 includes a support portion 431 and a connecting portion 432. The supporting portion 431 forms at least a first guide rail 4311, and the connecting portion 432 is slidably mounted on the first guide rail 4311. One end of the movable portion 421 away from the fixed portion 422 is connected to the supporting portion 431, and the rotation driving member 32 is mounted to the connecting portion 432.

Referring to fig. 1, further, the pre-cleanable flame cutting apparatus further includes a linear track moving assembly 50.

The linear track tape moving assembly 50 includes a transverse tape moving member 51. The connecting portion 432 is connected to the transverse belt moving member 51 in a driving manner, and the transverse belt moving member 51 is used for driving the connecting portion 432 to move transversely, so that after the connecting portion 432 is driven by the transverse belt moving member 51, the gas cutting member 10 and the spraying member 22 move transversely through the arc-shaped track belt transferring assembly 30, so that the gas cutting member 10 performs gas cutting on the workpiece 900, and simultaneously, the arc-shaped track belt transferring assembly 30 drives the gas cutting member 10 to move transversely through the transverse belt moving member 51, so that the gas cutting member 10 performs transverse gas cutting on the workpiece 900.

In one example, the lateral belt transfer member 51 is implemented to include an air cylinder.

In a variant embodiment, the arcuate path take-up assembly 30 may be eliminated. The spraying member 22 and/or the gas cutting member 10 are/is mounted on the connecting portion 432, the connecting portion 432 is connected to the transverse belt moving member 51 in a driving manner, and the transverse belt moving member 51 is used for driving the spraying member 22 and the gas cutting member 10 to move transversely through the connecting portion 432.

The linear track tape transport assembly 50 further includes a longitudinal tape transport 52. The fixing portion 422 is connected to the longitudinal belt moving member 52 in a driving manner, and the longitudinal belt moving member 52 is configured to drive the connecting member 42 to move in the longitudinal direction, so that after the connecting member 42 is driven by the longitudinal belt moving member 52, the gas cutting member 10 and the spraying member 22 mounted on the mounting member 31 are driven by the connecting member 42 through the extending member 43 to move in the longitudinal direction, so that the gas cutting member 10 performs gas cutting on the workpiece 900, and simultaneously, the gas cutting member 10 moves in the longitudinal direction, so that the gas cutting member 10 performs longitudinal gas cutting on the workpiece 900.

Preferably, the base 41 forms at least one second guide rail 411, the connecting element 42 is slidably mounted on the second guide rail 411, and the second guide rail 411 is used for limiting the moving direction of the connecting element 42.

In one example, the lateral belt transfer member 51 is implemented to include an air cylinder.

In a preferred embodiment, after the connecting portion 432 drives the gas cutting member 10 and the spraying member 22 to move to a side close to the connecting member 42 for a preset length in the transverse direction by the transverse belt moving member 51, then the longitudinal belt moving member 52 drives the gas cutting member 10 and the spraying member 22 to move in the longitudinal direction, then the transverse belt moving member 51 drives the gas cutting member 10 and the spraying member 22 to move in the transverse direction to a side far from the connecting member 42, and finally the longitudinal belt moving member 52 drives the gas cutting member 10 and the spraying member 22 to move in the longitudinal direction, so that the gas cutting member 10 gas-cuts the workpiece 900 into a rectangle.

It should be noted that, while the connecting portion 432 drives the gas cutting member 10 to move transversely through the transverse belt moving member 51, the longitudinal belt moving member 52 drives the gas cutting member 10 to move longitudinally, so that the gas cutting member 10 performs gas cutting on the workpiece 900 to form an inclined cut, and thus the gas cutting member 10 can perform gas cutting on the workpiece 900 to form other polygons such as a triangle and a parallelogram.

Referring to fig. 3 to 4, further, the pre-cleanable flame cutting apparatus further includes a spacing adjustment member 60.

The distance adjusting member 60 is installed between the fixed portion 422 and the movable portion 421 to drive the movable portion 421 to move vertically, so as to adjust the distance between the gas cutting member 10 installed on the connecting portion 432 and the workpiece 900. It will be appreciated that the distance between the torch cutting member 10 and the workpiece 900 is adjusted to ensure torch cutting quality, depending on the thickness of the workpiece 900.

In one example, the spacing adjustment 60 is embodied as a cylinder.

Referring to fig. 4, further, the pre-cleanable flame cutting apparatus further includes a carrier assembly 70.

The carrier assembly 70 includes a carrier mount 71. The carrier 71 forms a carrying surface 7101 for carrying the workpiece 900. The injection port 1003 formed in the gas cutting member 10 is disposed opposite to the carrying face 7101 formed in the carrying seat 71, so that the gas cutting member 10 can perform gas cutting on the workpiece 900 on the carrying face 7101.

Preferably, the carrier 71 defines a collection chamber 7102 and an opening 7103 in communication with the collection chamber 7102. The carrier block 71 forms a supporting ledge 711 on the inner wall of the collecting chamber 7102, and the supporting ledge 711 divides the collecting chamber 7102 into an upper portion 71021, a lower portion 71022 and a middle portion 71023, and communicates the upper portion 71021 with the opening 7103. The supporting ledge 711 forms the bearing face 7101.

The lower portion 71022 is configured to collect debris resulting from gas cutting of the workpiece 900. The workpiece 900 is placed on the carrying surface 7101 from the opening 7103, and chips generated during the gas cutting of the workpiece 900 by the gas cutting member 10 fall to the lower portion 71022.

Preferably, the carrier assembly 70 further comprises a negative pressure forming member 72, and the negative pressure forming member 72 is communicated with the lower part 71022 through a pipe, so that the lower part 71022 forms negative pressure. In this way, the workpiece 900 held by the support ledge 711 is fixed to the carrying face 7101 by the negative pressure formed by the negative pressure forming member 72 on the lower portion 71022, so that the workpiece 900 is prevented from moving during the gas cutting of the workpiece 900 by the gas cutting member 10, and the chips generated during the gas cutting are collected in the lower portion 71022 by the negative pressure.

It should be noted that the depth of the upper portion 71021 is set to hide the workpiece 900 in the upper portion 71021, so that the side wall of the upper portion 71021 can prevent the chips generated by gas cutting from splashing, and the chips generated by gas cutting can be prevented from splashing to cause injury to the worker in the process of gas cutting the workpiece 900 by the gas cutting piece 10.

The utility model discloses still provide the working method of the flame cutting device that can wash in advance, including following step:

(A) The pre-cleaning component 20 cleans the workpiece 900;

(B) The gas cutting member 10 gas-cuts the workpiece 900 cleaned by the pre-cleaning member 20 so that the workpiece 900 can be gas-cut into a predetermined shape.

A step (C) of adjusting the distance between the jet member 22 and the gas cutting member 10 and the workpiece 900 by the distance adjusting member 60 according to the thickness of the workpiece 900 is further included before the step (a).

In step (B), the negative pressure forming member 72 forms a negative pressure on the lower portion 71022 to fix the workpiece 900 on the carrying surface 7101, and debris generated during the gas cutting process is collected in the collecting chamber 7102 by the negative pressure.

In the step (B), the mounting member 31 drives the spraying member 22 and the gas cutting member 10 to rotate through the driving member 32, so that the gas cutting member 10 can gas cut the workpiece 900 into a circle or a semicircle.

In the step (B), the transverse belt-moving member 51 drives the spraying member 22 and the gas cutting member 10 to move transversely, and the longitudinal belt-moving member 52 drives the spraying member 22 and the gas cutting member 10 to move longitudinally, so that the gas cutting member 10 can gas cut the workpiece 900 into polygons.

It will be understood by those skilled in the art that the embodiments of the present invention described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The advantages of the present invention are already complete and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (10)

1. The flame cutting device that can wash in advance can carry out gas cutting to a work piece, its characterized in that, the flame cutting device that can wash in advance includes:

the gas cutting piece is provided with a first air inlet, a second air inlet, a jet orifice and a blowing port, wherein the jet orifice and the blowing port formed by the gas cutting piece are arranged to be aligned with the surface of the workpiece, the second air inlet formed by the gas cutting piece is communicated with a combustion gas tank through a pipeline, so that combustion gas in the combustion gas tank enters the gas cutting piece, the gas cutting piece is arranged to ignite the combustion gas introduced from the second air inlet into high-temperature flame, the jet orifice is used for jetting the high-temperature flame, the high-temperature flame jetted by the jet orifice burns the aligned workpiece, the first air inlet formed by the gas cutting piece is communicated with an oxygen supply tank through a pipeline, so that oxygen in the oxygen supply tank enters the gas cutting piece and is jetted through the blowing port, and slag generated by the workpiece combustion is blown away by the high-temperature flame;

the pre-cleaning component comprises a cleaning body and a spraying piece, wherein the spraying piece is connected to the cleaning body and is installed on the gas cutting piece, the spraying piece is provided with an emitting opening, the emitting opening is aligned to the surface of the workpiece, and the spraying piece is arranged to emit laser through the emitting opening so as to remove stains on the surface of the workpiece.

2. The pre-cleanable flame cutting apparatus of claim 1 further comprising an arcuate path rotating assembly, the arcuate path rotating assembly comprising a mounting member and a rotating member, the torch member being eccentrically coupled to the mounting member, the mounting member being drivingly coupled to the rotating member, the mounting member being configured to rotate the torch member and the jet member.

3. The precleanable flame cutting apparatus of claim 2, further comprising a support member, said support member including a base, a connector and an extension, said base being mounted to an end of said connector, said connector being mounted to said extension at an end remote from said base, said gas cutting element and said jet member being mounted to said extension by said drive member.

4. The precleanable flame cutting apparatus according to claim 3, wherein said extension member comprises a support portion and a connecting portion, said support portion defining at least a first rail, said connecting portion being slidably mounted to said first rail, an end of said connecting member remote from said base being connected to said support portion, said driving member being mounted to said connecting portion, said precleanable flame cutting apparatus further comprising a linear path belt moving assembly, said linear path belt moving assembly comprising a transverse belt moving member, said connecting portion being drivingly connected to said transverse belt moving member, said transverse belt moving member being configured to move said connecting portion in a transverse direction.

5. The precleanable flame cutting apparatus according to claim 4, wherein said linear path displacement assembly further comprises a longitudinal displacement member, said connecting member being drivingly connected to said longitudinal displacement member, said longitudinal displacement member being configured to displace said connecting member in a longitudinal direction, said base defining at least a second guide, said connecting member being slidably mounted to said second guide, said second guide being configured to define a direction of displacement of said connecting member.

6. The pre-cleanable flame cutting apparatus of claim 5 further comprising a spacing adjustment member, wherein the connecting member comprises a movable portion and a fixed portion, the movable portion is telescopically mounted to the fixed portion, the extension member is mounted to an end of the movable portion remote from the fixed portion, an end of the fixed portion remote from the movable portion is mounted to the base, and the spacing adjustment member is mounted between the fixed portion and the movable portion for moving the movable portion vertically to adjust a spacing between the torch cutting member mounted to the extension member via the mounting member and the workpiece.

7. The flame cutting apparatus of claim 5 or 6, further comprising a carrier assembly, wherein the carrier assembly comprises a carrier base, the carrier base forms a carrying surface for carrying the workpiece, and the jet ports formed by the gas cutting member are disposed opposite to the carrying surface formed by the carrier base.

8. The precleanable flame cutting apparatus of claim 7, wherein said carrier block defines a collection chamber and an opening communicating with said collection chamber, said carrier block defining a support ledge on an interior wall of said collection chamber, said support ledge dividing said collection chamber into an upper portion, a lower portion and a middle portion and communicating with said opening, said support ledge defining said bearing surface, said lower portion for collecting debris from said gas cutting of said workpiece.

9. The pre-cleanable flame cutting apparatus of claim 8 wherein the carrier assembly further comprises a negative pressure forming member in communication with the lower portion through a conduit such that the lower portion forms a negative pressure.

10. The precleanable flame cutting apparatus of claim 9, wherein the upper portion is configured to have a depth such that the workpiece is concealed from the upper portion.

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