阅读说明：本技术 一种精品钢材制备用底吹氮管卷筒 (Fine work steel preparation is with bottom blowing nitrogen pipe reel ) 是由 欧阳文 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种精品钢材制备用底吹氮管卷筒,其结构包括底脚、传动箱、收纳箱、转柱、支撑架,底脚上端螺柱连接于支撑架下端,传动箱内侧嵌固连接于转柱外侧,收纳箱内侧活动卡合于转柱外侧,支撑架上端螺栓连接于传动箱下端,氮管使用完毕后,将卷筒进行通电,使支撑架上端的传动箱带动转柱进行转动,转柱带动收纳箱内的抵圈进行转动,抵圈带动固定装置将氮管卷入卡盘内,使氮管对压板内的压块与支撑杆进行挤压,使弧条与弹块收缩抵住顶块与抵块,抵块推动卡口抵住卡环内侧的固定圈进行固定,使氮管固定在固定装置内,防止氮管发生滑动,导致氮管外表面夹杂着碎屑在卡盘内进行左右滑动摩擦,造成氮管外表面发生损坏。(The invention discloses a bottom-blowing nitrogen pipe winding drum for preparing fine steel, which structurally comprises a footing, a transmission case, a containing case, a rotary column and a support frame, wherein a stud at the upper end of the footing is connected to the lower end of the support frame, the inner side of the transmission case is fixedly embedded and connected to the outer side of the rotary column, the inner side of the containing case is movably clamped and connected to the outer side of the rotary column, the upper end of the support frame is connected to the lower end of the transmission case through a bolt, after the nitrogen pipe is used, the winding drum is electrified, the transmission case at the upper end of the support frame drives the rotary column to rotate, the rotary column drives a supporting ring in the containing case to rotate, the supporting ring drives a fixing device to roll the nitrogen pipe into the chuck, the nitrogen pipe extrudes a pressing block and a supporting rod in a pressing plate, an arc strip and an elastic block contract to abut against an abutting block, the clamping opening pushes a fixing ring at the inner side of the clamping ring to fix the nitrogen pipe in the fixing device, the nitrogen pipe is prevented from sliding, and the outer surface of the nitrogen pipe is mixed with scraps to slide and rub in the chuck from left and right, causing damage to the outer surface of the nitrogen tube.)

1. A bottom nitrogen blowing pipe winding drum for preparing fine steel products structurally comprises a footing (1), a transmission case (2), a containing case (3), a rotary column (4) and a support frame (5), wherein a stud at the upper end of the footing (1) is connected to the lower end of the support frame (5), the inner side of the transmission case (2) is fixedly embedded and connected to the outer side of the rotary column (4), the inner side of the containing case (3) is movably clamped on the outer side of the rotary column (4), and the upper end of the support frame (5) is connected to the lower end of the transmission case (2) through bolts; the method is characterized in that:

be equipped with chuck (31), support ring (32), support column (33), fixing device (34), scraping device (35) in containing box (3), chuck (31) front end welds with support column (33) rear end, support ring (32) outside and chuck (31) inboard fixed mutually, support column (33) outside and fixing device (34) inboard riveting mutually, fixing device (34) rear end and chuck (31) front end laminating, scraping device (35) rear end and chuck (31) front end clearance fit.

2. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 1, characterized in that: the fixing device is characterized in that a pressing plate (341), a clamping ring (342), a top plate (343), a fixing column (344) and a clamping groove (345) are arranged in the fixing device (34), the rear end of the pressing plate (341) is embedded and fixed at the front end of the top plate (343), the front end of the clamping ring (342) is welded at the rear end of the fixing column (344), the outer side of the top plate (343) is riveted at the inner side of the clamping groove (345), and the inner side of the fixing column (344) is clamped at the outer side of the clamping groove (345).

3. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 2, characterized in that: be equipped with briquetting (a1), connecting plate (a2), card frame (a3), guide slot (a4), bracing piece (a5) in clamp plate (341), briquetting (a1) rear end fixed connection is in guide slot (a4) front end, connecting plate (a2) front end and guide slot (a4) rear end laminating, card frame (a3) rear end riveting is connected in connecting plate (a2) front end, the inboard welded connection in bracing piece (a5) outside of guide slot (a 4).

4. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 3, characterized in that: be equipped with layering (a11), snap ring (a12), retainer plate (a13), support mouthful (a14), spliced pole (a15) in briquetting (a1), layering (a11) rear end is fixed with retainer plate (a13) front end, snap ring (a12) inboard riveting is in the retainer plate (a13) outside, the inboard embedded solid in spliced pole (a15) outside of retainer plate (a13), support mouthful (a14) outside block is inboard in spliced pole (a 15).

5. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 4, characterized in that: be equipped with arc strip (b1), bullet piece (b2), kicking block (b3), bayonet socket (b4), support piece (b5) in layering (a11), arc strip (b1) outside is inlayed admittedly and is connected in bullet piece (b2) inboard, bullet piece (b2) rear end and kicking block (b3) front end laminating, kicking block (b3) lower extreme fixed connection is in supporting block (b5) upper end, bayonet socket (b4) and support block (b5) are the integrated structure.

6. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 1, characterized in that: the scraping device (35) is internally provided with a scraper (351), a fixing ring (352), a pressing ring (353), a pressing column (354), a pressing rod (355) and a guide opening (356), the outer side of the scraper (351) is embedded and fixed on the inner side of the pressing column (354), the front end of the fixing ring (352) is welded with the rear end of the pressing ring (353), the inner side of the pressing ring (353) is in threaded connection with the outer side of the pressing column (354), the pressing rod (355) is arranged between the scraper (351) for supporting and matching, and the guide opening (356) is arranged on the inner side of the fixing ring (352) for guiding and matching.

7. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 6, characterized in that: be equipped with in scraper blade (351) and scrape piece (c1), splint (c2), supporting shoe (c3), arc mouth (c4), fixed block (c5), cardboard (c6), scrape piece (c1) lower extreme and cardboard (c6) upper end looks block, splint (c2) front end with scrape piece (c1) rear end clearance fit, supporting shoe (c3) upper end is fixed mutually with shift (c2) lower extreme, arc mouth (c4) and supporting shoe (c3) are integrated structure, fixed block (c5) upper end is connected with supporting shoe (c3) lower extreme, cardboard (c6) lower extreme is inlayed and is fixed in supporting shoe (c3) upper end.

8. The bottom-blown nitrogen pipe reel for fine steel product preparation according to claim 7, characterized in that: be equipped with bullet strip (c11), bullet board (c12), arc piece (c13), interface (c14), ejector pad (c15) in scraping piece (c1), bullet strip (c11) rear end riveting in bullet board (c12) front end, bullet board (c12) lower extreme is inlayed and is consolidated in arc piece (c13) upper end, arc piece (c13) lower extreme is connected with ejector pad (c15) upper end, the cooperation is connected to ejector pad (c15) lower extreme is located in interface (c 14).

Technical Field

The invention belongs to the technical field of fine steel product preparation, and particularly relates to a bottom nitrogen blowing pipe winding drum for fine steel product preparation.

Background

After the fine work steel smelting finishes, pull out the nitrogen pipe from the reel, cool off the groove of steel through the mode that bottom blown, blow off the piece in the recess, make the recess of steel can not remain the piece and influence processing on next step.

Based on the above description, the inventor finds that the existing bottom-blown nitrogen pipe winding drum for manufacturing fine steel mainly has the following defects, such as: when steel cools off, can produce a large amount of thermal current steam, strike and form the drop of water at the nitrogen pipe surface, the drop of water contacts the back with the piece that blows and fall subaerial, makes the piece cover at the nitrogen pipe surface, and the back that finishes using, when accomodating in taking in the reel with the nitrogen pipe, the traction force of nitrogen pipe reel drives, leads to the nitrogen pipe surface to be mingled with the piece and carries out side to side sliding friction in the chuck, causes the nitrogen pipe surface to take place to damage.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a bottom nitrogen blowing pipe winding drum for preparing fine steel products so as to solve the problems in the prior art.

The technical scheme adopted by the invention for realizing the technical purpose is as follows: this fine work steel preparation is with end nitrogen blowing pipe reel, its structure includes footing, transmission case, containing box, rotary column, support frame, footing upper end stud connection is in the support frame lower extreme, the inboard embedded joint of transmission case is in the rotary column outside, the inboard activity block of containing box is in the rotary column outside, support frame upper end bolted connection is in the transmission case lower extreme.

As a further improvement of the invention, a chuck, a supporting ring, supporting columns, a fixing device and a scraping device are arranged in the storage box, the front end of the chuck is welded with the rear end of the supporting column, the outer side of the supporting ring is fixed with the inner side of the chuck, the outer side of the supporting column is riveted with the inner side of the fixing device, the rear end of the fixing device is attached to the front end of the chuck, the rear end of the scraping device is in clearance fit with the front end of the chuck, six fixing devices are arranged and distributed around the rotating columns, and six clamping columns are arranged on the inner side of the supporting ring and clamped in the outer sides of the rotating columns.

As a further improvement of the invention, a pressing plate, a clamping ring, a top plate, a fixing column and a clamping groove are arranged in the fixing device, the rear end of the pressing plate is embedded and fixed at the front end of the top plate, the front end of the clamping ring is welded at the rear end of the fixing column, the outer side of the top plate is riveted at the inner side of the clamping groove, the inner side of the fixing column is clamped at the outer side of the clamping groove, and two fixing columns and two clamping rings are arranged and distributed symmetrically.

As a further improvement of the invention, a pressing block, a connecting plate, a clamping frame, a guide groove and support rods are arranged in the pressing plate, the rear end of the pressing block is fixedly connected to the front end of the guide groove, the front end of the connecting plate is attached to the rear end of the guide groove, the rear end of the clamping frame is connected to the front end of the connecting plate in a riveting mode, the inner side of the guide groove is connected to the outer side of the support rods in a welding mode, the number of the support rods is two, the inner side of the support rods is arc-shaped, and the number of the clamping frames is six and is symmetrically distributed in parallel.

As a further improvement of the invention, the pressing block is internally provided with a pressing strip, a clamping ring, a fixing ring, four connecting columns and connecting columns, the rear end of the pressing strip is fixed with the front end of the fixing ring, the inner side of the clamping ring is riveted outside the fixing ring, the inner side of the fixing ring is embedded and fixed outside the connecting columns, the outer sides of the connecting columns are clamped inside the connecting columns, and the four connecting columns are distributed around the connecting columns.

As a further improvement of the invention, an arc strip, an elastic block, a top block, a bayonet and a butting block are arranged in the pressing strip, the outer side of the arc strip is fixedly embedded and connected with the inner side of the elastic block, the rear end of the elastic block is attached to the front end of the top block, the lower end of the top block is fixedly connected with the upper end of the butting block, the bayonet and the butting block are of an integrated structure, and the arc strip and the elastic block are made of rubber materials and have elasticity.

As a further improvement of the invention, the scraping device is internally provided with a scraper, a fixing ring, a support ring, a compression post, a support rod and guide openings, the outer side of the scraper is embedded and fixed at the inner side of the compression post, the front end of the fixing ring is welded with the rear end of the support ring, the inner side of the support ring is in threaded connection with the outer side of the compression post, the support rod is arranged between the scrapers for supporting and matching, the guide openings are arranged at the inner side of the fixing ring for guiding and matching, and the four scrapers and the four support rods are annularly distributed.

The scraping plate is further improved, a scraping block, a clamping plate, a supporting block, two arc openings, a fixing block and a clamping plate are arranged in the scraping plate, the lower end of the scraping block is clamped with the upper end of the clamping plate, the front end of the clamping plate is in clearance fit with the rear end of the scraping block, the upper end of the supporting block is fixed with the shift-adding lower end, the arc openings and the supporting block are of an integrated structure, the upper end of the fixing block is connected with the lower end of the supporting block, the lower end of the clamping plate is embedded and fixed at the upper end of the supporting block, and the two fixing blocks are obliquely and symmetrically distributed.

As a further improvement of the invention, an elastic strip, an elastic plate, an arc block, a connector and a push block are arranged in the scraping block, the rear end of the elastic strip is riveted at the front end of the elastic plate, the lower end of the elastic plate is embedded and fixed at the upper end of the arc block, the lower end of the arc block is connected with the upper end of the push block, the connector is arranged at the lower end of the push block for connection and matching, and the elastic strip and the elastic plate are made of plastic fibers and have high elasticity and high toughness.

The invention has the beneficial effects that:

1. the back that the nitrogen pipe finished using, the circular telegram with the reel, make the transmission case of support frame upper end drive the rotary column and rotate, the rotary column drives the circle of keeping to in the containing box and rotates, it drives fixing device to be drawn into the nitrogen pipe in the chuck to keep to the circle, make the nitrogen pipe extrude briquetting and bracing piece in the clamp plate, make briquetting and bracing piece hug closely remain stable in the inboard guide slot of connecting plate, the nitrogen pipe promotes arc strip and bullet piece, make arc strip and bullet piece shrink and support kicking block and support the piece, it promotes the bayonet socket and supports the inboard retainer plate of snap ring and fix to support the piece, make the nitrogen pipe fix in fixing device, prevent that the nitrogen pipe from taking place to slide, lead to the nitrogen pipe surface to be mingled with the piece and carry out the side-to-side sliding friction in the chuck, cause the nitrogen pipe surface to take place to damage.

2. When the nitrogen pipe passes the guide port, piece and the scraper blade contact in the nitrogen pipe outside, bullet strip in the scraper blade extrudees the shrink with playing the board to the piece, bullet strip supports the arc piece with the ejector pad with playing the board and supports, the ejector pad promotes the interface and supports the cardboard of splint front end, splint are hugged closely in supporting shoe and fixed block upper end, the fixed block supports the compression leg and fixes with the solid fixed ring that supports the ring rear end, after the nitrogen pipe is accomodate and is accomplished, bullet strip breaks away from the extrusion with playing the board and kick-backs and tremble the piece, prevent that the piece from entering into the containing box in, lead to the nitrogen pipe to be mingled with piece extrusion friction of each other, cause the nitrogen pipe surface impaired.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a bottom-blown nitrogen tube reel for fine steel production according to the present invention;

FIG. 2 is a side view of the storage box of the present invention;

FIG. 3 is a front view of the fixing device of the present invention;

FIG. 4 is a front view of the platen of the present invention;

FIG. 5 is a schematic structural view of a compact according to the present invention;

FIG. 6 is a schematic front view of a molding bar according to the present invention;

fig. 7 is a side view of the scraping device of the present invention;

FIG. 8 is a front view of the squeegee of the present invention;

FIG. 9 is a front view of a scraping block according to the present invention;

in the figure: footing-1, transmission case-2, containing case-3, rotary column-4, support frame-5, chuck-31, support ring-32, support column-33, fixing device-34, scraping device-35, pressing plate-341, clamping ring-342, top plate-343, fixing column-344, clamping groove-345, pressing block-a 1, connecting plate-a 2, clamping frame-a 3, guide groove-a 4, support rod-a 5, pressing strip-a 11, clamping ring-a 12, fixing ring-a 13, support opening-a 14, connecting column-a 15, arc strip-b 1, elastic block-b 2, top block-b 3, bayonet-b 4, pressing block-b 5, scraper-351, fixing ring-352, pressing ring-353, pressing column-354, pressing rod-355, pressing rod-b, Guide opening-356, scraping block-c 1, clamping plate-c 2, supporting block-c 3, arc opening-c 4, fixing block-c 5, clamping plate-c 6, elastic strip-c 11, elastic plate-c 12, arc block-c 13, interface-c 14 and pushing block-c 15.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example 1

As shown in figures 1 to 6:

the invention provides a bottom nitrogen blowing pipe winding drum for preparing fine steel, which structurally comprises a footing 1, a transmission case 2, a containing case 3, a rotary column 4 and a support frame 5, wherein a stud at the upper end of the footing 1 is connected to the lower end of the support frame 5, the inner side of the transmission case 2 is fixedly embedded and connected to the outer side of the rotary column 4, the inner side of the containing case 3 is movably clamped and connected to the outer side of the rotary column 4, and the upper end of the support frame 5 is connected to the lower end of the transmission case 2 through a bolt.

Wherein, be equipped with chuck 31 in the containing box 3, support ring 32, support column 33, fixing device 34, scraping device 35 to support, chuck 31 front end and the welding of support column 33 rear end, it is fixed mutually to support ring 32 outside and chuck 31 inboard, support column 33 outside and the inboard riveting of fixing device 34, fixing device 34 rear end and the laminating of chuck 31 front end, scraping device 35 rear end and chuck 31 front end clearance fit, fixing device 34 is equipped with six, encircles the 4 distributions of rotary column, support ring 32 inboard is equipped with six card posts, and the card is in the 4 outsides of rotary column, makes the nitrogen pipe can not take place the horizontal slip when accomodating.

The fixing device 34 is internally provided with a pressing plate 341, a clamping ring 342, a top plate 343, a fixing column 344 and a clamping groove 345, the rear end of the pressing plate 341 is embedded at the front end of the top plate 343, the front end of the clamping ring 342 is welded at the rear end of the fixing column 344, the outer side of the top plate 343 is riveted at the inner side of the clamping groove 345, the inner side of the fixing column 344 is clamped at the outer side of the clamping groove 345, and the two fixing columns 344 and the clamping ring 342 are symmetrically distributed, so that the pressing plate 341 at the front end of the top plate 343 can be kept stable after being extruded.

Wherein, be equipped with briquetting a1, connecting plate a2, card frame a3, guide slot a4, bracing piece a5 in the clamp plate 341, briquetting a1 rear end fixed connection is in guide slot a4 front end, connecting plate a2 front end and guide slot a4 rear end laminating, card frame a3 rear end riveting is connected in connecting plate a2 front end, the inboard welded connection in the bracing piece a5 outside of guide slot a4, bracing piece a5 is equipped with two, is the arc form to the inboard, card frame a3 is equipped with six, is parallel symmetric distribution, can be absorbed in the arc groove of bracing piece a5 when making the nitrogen pipe extrude to the outside and lead.

Wherein, be equipped with layering a11, snap ring a12, retainer plate a13, support mouthful a14, spliced pole a15 in the briquetting a1, layering a11 rear end is fixed with retainer plate a13 front end, snap ring a12 inboard riveting in the retainer plate a13 outside, retainer plate a13 inboard is inlayed and is fixed in the spliced pole a15 outside, support mouthful a14 outside block in spliced pole a15 inboard, spliced pole a15 is equipped with four, encircles and supports mouthful a14 and distributes, and when making the nitrogen pipe promote layering a11, layering a11 can carry out the slope to the nitrogen pipe and fix.

Wherein, be equipped with arc b1, bullet piece b2, kicking block b3, bayonet socket b4, support piece b5 in the layering a11, arc b1 outside is inlayed the solid and is connected in bullet piece b2 inboard, bullet piece b2 rear end and the laminating of kicking block b3 front end, kicking block b3 lower extreme fixed connection is in supporting block 5 upper end, bayonet socket b4 and supporting block b5 are the integrated structure, arc b1 and bullet piece b2 are the rubber material, have elasticity, make the nitrogen pipe outer wall when carrying out the extrusion friction to arc b1 and bullet piece b2, can not damage the nitrogen pipe surface.

The specific use mode and function of the embodiment are as follows:

in the invention, after the nitrogen tube is used, the winding drum is electrified, so that the transmission case 2 at the upper end of the support frame 5 drives the rotary column 4 to rotate, the rotary column 4 drives the abutting ring 32 in the containing case 3 to rotate, the abutting ring 32 drives the fixing device 34 to roll the nitrogen tube into the chuck 31, so that the nitrogen tube extrudes the pressing block a1 and the supporting rod a5 in the pressing plate 341, the pressing block a1 and the supporting rod a5 are tightly attached to the guide groove a4 at the inner side of the connecting plate a2 to be stable, the nitrogen tube pushes the arc b1 and the spring block b2, the arc b1 and the spring block b2 are contracted to abut against the top block b3 and the abutting block b5, the abutting block b5 pushes the bayonet b4 to abut against the fixing ring a13 at the inner side of the snap ring a12 to be fixed, the nitrogen tube is fixed in the chuck fixing device 34, the nitrogen tube is prevented from sliding, and the outer surface of the nitrogen tube is rubbed with chips in a left and right sliding mode, and the outer surface of the nitrogen tube is damaged.

Example 2

As shown in fig. 7 to 9:

the invention provides a bottom nitrogen blowing pipe winding drum for preparing fine steel, wherein a scraping plate 351, a fixing ring 352, a resisting ring 353, pressure columns 354, resisting rods 355 and guide openings 356 are arranged in a scraping device 35, the outer side of the scraping plate 351 is embedded and fixed on the inner side of the pressure columns 354, the front end of the fixing ring 352 is welded with the rear end of the resisting ring 353, the inner side of the resisting ring 353 is in threaded connection with the outer side of the pressure columns 354, the resisting rods 355 are arranged among the scraping plates 351 for supporting and matching, the guide openings 356 are arranged on the inner side of the fixing ring 352 for guiding and matching, and the four scraping plates 351 and the resisting rods 355 are distributed annularly, so that when a nitrogen pipe enters an accommodating box 3, scraps on the outer wall of the nitrogen pipe can be scraped.

The scraper 351 is internally provided with a scraping block c1, a clamping plate c2, a supporting block c3, an arc opening c4, a fixing block c5 and a clamping plate c6, the lower end of the scraping block c1 is clamped with the upper end of the clamping plate c6, the front end of the clamping plate c2 is in clearance fit with the rear end of the scraping block c1, the upper end of the supporting block c3 is fixed with the lower end of the overtime c2, the arc opening c4 and the supporting block c3 are of an integrated structure, the upper end of the fixing block c5 is connected with the lower end of the supporting block c3, the lower end of the clamping plate c6 is embedded and fixed at the upper end of the supporting block c3, and the two fixing blocks c5 are obliquely and symmetrically distributed, so that the fixing blocks c5 can abut against the front end of the fixing ring 352 to be kept stable.

The scraping block c1 is internally provided with an elastic strip c11, an elastic plate c12, an arc block c13, a connector c14 and a pushing block c15, the rear end of the elastic strip c11 is riveted at the front end of the elastic plate c12, the lower end of the elastic plate c12 is embedded at the upper end of the arc block c13, the lower end of the arc block c13 is connected with the upper end of the pushing block c15, the connector c14 is arranged at the lower end of the pushing block c15 for connection and matching, the elastic strip c11 and the elastic plate c12 are made of plastic fibers and have high elasticity and high toughness, so that when the elastic strip c11 and the elastic plate c12 scrape the scraps on the outer surface of the nitrogen pipe, the scraps cannot be squeezed and rubbed, and the outer surface of the nitrogen pipe is prevented from being damaged.

The specific use mode and function of the embodiment are as follows:

in the invention, when a nitrogen pipe passes through a guide port 356, debris outside the nitrogen pipe is in contact with a scraper 351, an elastic strip c11 and an elastic plate c12 in the scraper 351 compress and contract the debris, the elastic strip c11 and the elastic plate c12 abut against an arc block c13 and a push block c15 to support, the push block c15 pushes a connector c14 to abut against a clamping plate c6 at the front end of a clamping plate c2, the clamping plate c2 is tightly attached to the upper ends of a supporting block c3 and a fixed block c5, the fixed block c5 abuts against a fixed ring 352 at the rear end of a pressing column 354 and a fixed ring 353 to fix, after the nitrogen pipe is completely stored, the elastic strip c11 and the elastic plate c12 are separated from extrusion to rebound to shake away the debris, the debris is prevented from entering a storage box, the debris is mixed with the debris to be squeezed and rubbed with each other, and the outer surface of the nitrogen pipe is damaged.

The invention solves the problems in the prior art, and through the mutual combination of the components, the invention prevents the outer surface of the nitrogen tube from sliding, so that the outer surface of the nitrogen tube is mixed with the scraps to carry out left-right sliding friction in the chuck, so that the outer surface of the nitrogen tube is damaged, and prevents the scraps from entering the containing box, so that the outer surface of the nitrogen tube is damaged due to the mutual extrusion friction of the scraps mixed with the nitrogen tube.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.