CN111760916A - Six-cutting guide device - Google Patents
Six-cutting guide device Download PDFInfo
- Publication number
- CN111760916A CN111760916A CN202010611167.7A CN202010611167A CN111760916A CN 111760916 A CN111760916 A CN 111760916A CN 202010611167 A CN202010611167 A CN 202010611167A CN 111760916 A CN111760916 A CN 111760916A
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- groove
- column
- fixedly connected
- sliding
- block
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- 238000005520 cutting process Methods 0.000 title claims description 26
- 230000011218 segmentation Effects 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 230000013011 mating Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the technical field of section steel rolling and discloses a six-segmentation guide and guard device which comprises a lower base, wherein the lower base is rotatably connected with a lower segmentation wheel, the top of the lower base is provided with a positioning groove, the inside of the positioning groove is movably connected with a connecting column, the left side of the connecting column is provided with a matching groove, the left side and the right side of the lower base are both provided with connecting grooves, the inside of each connecting groove is movably connected with a movable column, the right end of each movable column is fixedly connected with a matching block, the left end of each movable column is fixedly connected with a limiting flange, and the top of the lower base is movably connected with a bearing seat. This six segmentation guides and guards device through addding constant head tank, spliced pole and cooperation piece isotructure, makes the spacing joint that changes into of original bolt spacing, and owing to do not adopt the bolt spacing, can not appear smooth silk phenomenon when making the dismouting of guiding and guarding device, and then effectual messenger guides and guards the device and reaches the purpose of the maintenance of being convenient for.
Description
Technical Field
The invention relates to the technical field of section steel rolling, in particular to a six-slitting guide and guard device.
Background
The guide is a device which is arranged before and after a roll pass and helps rolled pieces accurately and stably enter and exit the roll pass according to a set direction and state in the process of rolling profile steel, profile steel with any section shape is rolled, the guide is almost used at the inlets and outlets of all rolls, and the guide has the function of enabling the rolled pieces to enter and exit the roll pass according to a required state and ensuring that the rolled pieces are rolled according to a set deformation condition.
In the rolling process of the section steel, a guide device is required to be used for splitting treatment, for example, a guide centering adjusting device of CN 102357538B has the advantages of accurate positioning, improved production efficiency and reduced guide consumption, but in the actual use of the guide device, a base and a top cover of the guide device are fixed by dozens of bolts, a splitting wheel is easy to damage, and the bolts are required to be frequently disassembled, so that the bolts are easy to slide, further inconvenience is brought to maintenance, when the height of the splitting wheel is required to be adjusted, three times of manual adjustment are required, inconvenience is caused in adjustment, adjustment deviation is easy to occur, and the guide device achieves the purposes of convenience in maintenance and convenience in adjustment, so the six-split guide device is provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention relates to and provides a six-segmentation guide and guard device which has the advantages of convenience in maintenance and adjustment and the like, and solves the problems that in the actual use of the guide and guard device, a base and a top cover of the guide and guard device are fixed by dozens of bolts, a segmentation wheel is easy to damage, the bolts are required to be frequently disassembled, so that the bolts are easy to slip, further inconvenience is brought to maintenance, when the height of the segmentation wheel needs to be adjusted, three times of manual adjustment are required, inconvenience is caused in adjustment, and adjustment deviation is easy to occur.
(II) technical scheme
In order to achieve the purposes of convenient maintenance and convenient adjustment, the invention provides the following technical scheme: a six-cutting guide and guard device comprises a lower base, wherein a lower cutting wheel is rotatably connected inside the lower base, a positioning groove is formed in the top of the lower base, a connecting column is movably connected inside the positioning groove, a matching groove is formed in the left side of the connecting column, connecting grooves are formed in the left side and the right side of the lower base, a movable column is movably connected inside the connecting grooves, a matching block is fixedly connected to the right end of the movable column, a limiting flange is fixedly connected to the left end of the movable column, a bearing seat is movably connected to the top of the lower base, adjusting blocks are fixedly connected to the front side wall and the rear side wall of the bearing seat, sliding grooves are formed in the opposite sides of the two adjusting blocks, sliding blocks are slidably connected inside the sliding grooves, a rotating column is rotatably connected to the opposite sides of the two sliding blocks, and an upper cutting wheel is fixedly connected between the two, the top fixedly connected with of sliding block adjusts the post, the horizontal board of top fixedly connected with of regulation post, the right side fixedly connected with of horizontal board extends the post, the right side fixedly connected with plate of accepting a top, the spout has been seted up in the left side of plate, the inside sliding connection of spout has built-in piece, the thread groove has been seted up at the top of built-in piece, the top of plate has been seted up and has been accepted the groove, the inside swing joint who accepts the groove has the screw thread post.
Preferably, the mating block is located inside the mating slot, and the length, width and height of the mating block are equal to the length, width and height of the mating slot, respectively.
Preferably, the height of the connecting column is equal to that of the positioning groove, and the connecting column is fixedly connected with the bearing seat.
Preferably, the diameter of the limiting flange is larger than that of the connecting groove, and the left side of the limiting flange is fixedly connected with a U-shaped grip.
Preferably, the distance between the two adjusting blocks is equal to the width of the upper cutting wheel, and the upper cutting wheel is positioned above the lower cutting wheel.
Preferably, one end of the adjusting column, which is far away from the sliding block, penetrates through the bearing seat and extends to the outside of the bearing seat to be fixedly connected with the transverse plate.
Preferably, the bottom end of the threaded column is located inside the threaded groove, and the threaded column is in threaded connection with the threaded groove.
Preferably, the thread groove is communicated with the sliding groove, and the height of the sliding groove is equal to that of the sliding groove.
Preferably, the connecting groove is communicated with the positioning groove, and the built-in block is fixedly connected with the extending column.
(III) advantageous effects
Compared with the prior art, the invention provides a six-segmentation guide and guard device, which has the following beneficial effects:
1. this six segmentation guide and guard device, when guide and guard device need maintain, hold and stimulate the U-shaped handle, the pulling in-process, spacing flange will drive movable post and cooperation piece in proper order and remove along the spread groove, break away from the cooperation groove until the cooperation piece, after the cooperation piece breaks away from the cooperation groove, the spliced pole will not be spacing, upwards the pulling is accepted the seat, it drives the spliced pole rebound to make to accept the seat, it can to break away from the constant head tank until the spliced pole, this accommodation process, through addding the constant head tank, spliced pole and cooperation piece isotructure, it is spacing to make the spacing joint that changes into of original bolt, and because it is spacing not adopting the bolt, the smooth silk phenomenon can not appear when making guide and guard device dismouting, and then effectual messenger guide and guard device reaches.
2. When the distance between the upper cutting wheel and the lower cutting wheel needs to be adjusted, the six-cutting guide device rotates the threaded column to separate the threaded column from the threaded groove, and after the threaded column is separated from the threaded groove, under the sliding action of the built-in block and the sliding groove, the transverse plate drives the adjusting column to move, under the sliding cooperation action of the sliding block and the sliding groove, the adjusting column drives the sliding block to move, the rotating column drives the upper cutting wheel to move until the upper cutting wheel is adjusted to a proper position, when the upper slitting wheel is adjusted to a proper position, the threaded column is rotated reversely, so that the threaded column is connected with the threaded groove again in a threaded manner, change sliding adjustment and screw thread regulation into through adjusting original screw thread and combine, and all with horizontal board fixed connection with three regulation post, avoided the user to adjust many times, and then effectual messenger guides and guards the device and reaches the purpose of being convenient for to adjust.
Drawings
Fig. 1 is a schematic structural view of a six-segment guide and guard device according to the present invention;
fig. 2 is a schematic partial enlarged view of a six-segment guide and guard device a according to the present invention;
fig. 3 is a left side view of a connection structure of a bearing seat in a six-segment guide and guard device according to the present invention;
fig. 4 is a partially enlarged schematic view of a six-segment guide and guard device B according to the present invention.
In the figure: the device comprises a lower base 1, a lower cutting wheel 2, a positioning groove 3, a connecting column 4, a matching groove 5, a connecting groove 6, a movable column 7, a matching block 8, a limiting flange 9, a bearing seat 10, an adjusting block 11, a sliding groove 12, a sliding block 13, a rotating column 14, a cutting wheel 15, an adjusting column 16, a transverse plate 17, an extending column 18, a plate block 19, a sliding groove 20, a built-in block 21, a threaded groove 22, a bearing groove 23 and a threaded column 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a six-segmentation guide and guard device comprises a lower base 1, a lower segmentation wheel 2 is rotatably connected inside the lower base 1, a positioning groove 3 is formed in the top of the lower base 1, a connecting column 4 is movably connected inside the positioning groove 3, a matching groove 5 is formed in the left side of the connecting column 4, connecting grooves 6 are formed in the left side and the right side of the lower base 1, a movable column 7 is movably connected inside the connecting groove 6, a matching block 8 is fixedly connected at the right end of the movable column 7, a limiting flange 9 is fixedly connected at the left end of the movable column 7, a bearing seat 10 is movably connected at the top of the lower base 1, adjusting blocks 11 are fixedly connected with the front side wall and the rear side wall of the bearing seat 10, sliding grooves 12 are formed in opposite sides of the two adjusting blocks 11, sliding blocks 13 are slidably connected inside the sliding grooves 12, rotating columns 14 are rotatably connected on opposite sides of the two sliding blocks 13, an upper segmentation, the top fixedly connected with of sliding block 13 adjusts post 16, adjusts the horizontal board 17 of the top fixedly connected with of post 16, the right side fixedly connected with of horizontal board 17 extends post 18, the right side fixedly connected with plate 19 at accepting seat 10 top, spout 20 has been seted up in the left side of plate 19, the inside sliding connection of spout 20 has built-in piece 21, threaded groove 22 has been seted up at the top of built-in piece 21, accepting groove 23 has been seted up at the top of plate 19, the inside swing joint who accepts groove 23 has threaded post 24.
In the present invention, the fitting block 8 is located inside the fitting groove 5, and the length, width and height of the fitting block 8 are equal to those of the fitting groove 5, respectively.
In the invention, the height of the connecting column 4 is equal to that of the positioning groove 3, and the connecting column 4 is fixedly connected with the bearing seat 10.
In the invention, the diameter of the limiting flange 9 is larger than that of the connecting groove 6, and the left side of the limiting flange 9 is fixedly connected with a U-shaped grip.
In the present invention, the distance between the two adjusting blocks 11 is equal to the width of the upper slitting wheel 15, and the upper slitting wheel 15 is located above the lower slitting wheel 2.
In the invention, one end of the adjusting column 16 far away from the sliding block 13 penetrates through the bearing seat 10 and extends to the outside of the bearing seat 10 to be fixedly connected with the transverse plate 17.
In the present invention, the bottom end of the threaded post 24 is located inside the threaded groove 22, and the threaded post 24 is threadedly coupled with the threaded groove 22.
In the present invention, the screw groove 22 communicates with the slide groove 20, and the height of the slide groove 20 is equal to the height of the slide groove 12.
In the invention, the connecting groove 6 is communicated with the positioning groove 3, and the built-in block 21 is fixedly connected with the extending column 18.
When the guide and guard device needs to be maintained, the U-shaped handle is held and pulled, in the pulling process, the limiting flange 9 sequentially drives the movable column 7 and the matching block 8 to move along the connecting groove 6 until the matching block 8 is separated from the matching groove 5, after the matching block 8 is separated from the matching groove 5, the connecting column 4 is not limited, the bearing seat 10 is pulled upwards, the bearing seat 10 drives the connecting column 4 to move upwards until the connecting column 4 is separated from the positioning groove 3, in the adjusting process, the original bolt limiting is changed into the clamping limiting through additionally arranging the positioning groove 3, the connecting column 4, the matching block 8 and other structures, in addition, the guide and guard device is not limited by bolts, the phenomenon of thread sliding does not occur when being disassembled and assembled, the guide and guard device can effectively achieve the purpose of being convenient to maintain, when the distance between the upper cutting wheel 15 and the lower cutting wheel 2 needs to be adjusted, the threaded column 24 is rotated, the threaded column 24 is separated from the threaded groove 22, after the threaded column 24 is separated from the threaded groove 22, under the sliding action of the built-in block 21 and the sliding groove 20, the transverse plate 17 drives the adjusting column 16 to move, under the sliding fit action of the sliding block 13 and the sliding groove 12, the adjusting column 16 drives the sliding block 13 to move, the rotating column 14 drives the upper dividing wheel 15 to move until the upper dividing wheel 15 is adjusted to a proper position, and after the upper dividing wheel 15 is adjusted to a proper position, the threaded column 24 is rotated reversely, so that the threaded column 24 is in threaded connection with the threaded groove 22 again.
To sum up, this six segmentation guide fittings, when guide fittings need maintenance, hold and stimulate the U-shaped handle, in the pulling process, spacing flange 9 will drive movable post 7 and cooperation piece 8 in proper order and remove along spread groove 6, until cooperation piece 8 breaks away from cooperation groove 5, after cooperation piece 8 breaks away from cooperation groove 5, spliced pole 4 will not be spacing, upwards stimulate socket 10, make socket 10 drive spliced pole 4 rebound, until spliced pole 4 breaks away from constant head tank 3 can, this accommodation process, through addding constant head tank 3, spliced pole 4 and cooperation piece 8 isotructures, it is spacing to make the spacing joint that changes into of original bolt, and because it is spacing not to adopt the bolt, can not appear the smooth silk phenomenon when making guide fittings dismouting, and then effectual guide fittings reaches the purpose of being convenient for the maintenance.
Moreover, when the distance between the upper cutting wheel 15 and the lower cutting wheel 2 needs to be adjusted, the threaded column 24 is rotated to enable the threaded column 24 to be separated from the threaded groove 22, after the threaded column 24 is separated from the threaded groove 22, under the sliding action of the built-in block 21 and the sliding groove 20, the transverse plate 17 drives the adjusting column 16 to move, under the sliding fit action of the sliding block 13 and the sliding groove 12, the adjusting column 16 drives the sliding block 13 to move, the rotating column 14 drives the upper cutting wheel 15 to move until the upper cutting wheel 15 is adjusted to a proper position, after the upper cutting wheel 15 is adjusted to a proper position, the threaded column 24 is reversely rotated to enable the threaded column 24 to be in threaded connection with the threaded groove 22 again, in the adjusting process, the original threaded adjustment is changed into the combination of sliding adjustment and threaded adjustment, and the three adjusting columns 16 are fixedly connected with the transverse plate 17, so that multiple adjustments of a user are avoided, and then effectual messenger guides the defending device and reaches the purpose of being convenient for to adjust, has solved and has led the defending device in-service use, and its base and top cap adopt tens of bolt fastening, and the slitting wheel is damaged easily, need often dismantle the bolt to lead to the bolt to slide easily, and then bring inconvenience for the maintenance, and when needs adjust the slitting wheel height, need the manual regulation of cubic, adjust and have inconvenience, and the problem that the regulation deviation appears easily.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the phrase "comprising a. -. said" to define an element does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a six segmentation guides and guards device, includes lower base (1), its characterized in that: the inner part of the lower base (1) is rotatably connected with a lower dividing wheel (2), the top of the lower base (1) is provided with a positioning groove (3), the inner part of the positioning groove (3) is movably connected with a connecting column (4), the left side of the connecting column (4) is provided with a matching groove (5), the left side and the right side of the lower base (1) are both provided with a connecting groove (6), the inner part of the connecting groove (6) is movably connected with a movable column (7), the right end of the movable column (7) is fixedly connected with a matching block (8), the left end of the movable column (7) is fixedly connected with a limiting flange (9), the top of the lower base (1) is movably connected with a bearing seat (10), the front side wall and the rear side wall of the bearing seat (10) are both fixedly connected with adjusting blocks (11), and one side of the two adjusting blocks (11), sliding blocks (13) are connected inside the sliding groove (12) in a sliding manner, one side of each sliding block (13) opposite to each other is rotatably connected with a rotating column (14), an upper cutting wheel (15) is fixedly connected between the two rotating columns (14), the top of the sliding block (13) is fixedly connected with an adjusting column (16), the top end of the adjusting column (16) is fixedly connected with a transverse plate (17), the right side of the transverse plate (17) is fixedly connected with an extension column (18), the right side of the top of the bearing seat (10) is fixedly connected with a plate block (19), a sliding groove (20) is formed in the left side of the plate (19), an internal block (21) is connected inside the sliding groove (20) in a sliding manner, the top of the built-in block (21) is provided with a thread groove (22), the top of the plate block (19) is provided with a bearing groove (23), and the inside of the bearing groove (23) is movably connected with a thread column (24).
2. A six-slitting guide and guard device according to claim 1, wherein: the matching block (8) is positioned inside the matching groove (5), and the length, the width and the height of the matching block (8) are respectively equal to the length, the width and the height of the matching groove (5).
3. A six-slitting guide and guard device according to claim 1, wherein: the height of the connecting column (4) is equal to that of the positioning groove (3), and the connecting column (4) is fixedly connected with the bearing seat (10).
4. A six-slitting guide and guard device according to claim 1, wherein: the diameter of the limiting flange (9) is larger than that of the connecting groove (6), and the left side of the limiting flange (9) is fixedly connected with a U-shaped grip.
5. A six-slitting guide and guard device according to claim 1, wherein: the distance between the two adjusting blocks (11) is equal to the width of the upper cutting wheel (15), and the upper cutting wheel (15) is positioned above the lower cutting wheel (2).
6. A six-slitting guide and guard device according to claim 1, wherein: one end of the adjusting column (16) far away from the sliding block (13) penetrates through the bearing seat (10) and extends to the outside of the bearing seat (10) to be fixedly connected with the transverse plate (17).
7. A six-slitting guide and guard device according to claim 1, wherein: the bottom end of the threaded column (24) is positioned inside the threaded groove (22), and the threaded column (24) is in threaded connection with the threaded groove (22).
8. A six-slitting guide and guard device according to claim 1, wherein: the thread groove (22) is communicated with the sliding groove (20), and the height of the sliding groove (20) is equal to that of the sliding groove (12).
9. A six-slitting guide and guard device according to claim 1, wherein: the connecting groove (6) is communicated with the positioning groove (3), and the built-in block (21) is fixedly connected with the extending column (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611167.7A CN111760916A (en) | 2020-06-29 | 2020-06-29 | Six-cutting guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611167.7A CN111760916A (en) | 2020-06-29 | 2020-06-29 | Six-cutting guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111760916A true CN111760916A (en) | 2020-10-13 |
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ID=72724171
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010611167.7A Pending CN111760916A (en) | 2020-06-29 | 2020-06-29 | Six-cutting guide device |
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| CN (1) | CN111760916A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799464U (en) * | 2010-09-19 | 2011-04-20 | 合肥东方冶金设备有限公司 | Six-segmentation guide device |
| CN202045155U (en) * | 2011-02-16 | 2011-11-23 | 合肥东方节能科技股份有限公司 | Rolling direction adjustable guide clamping mechanism |
| CN102357538A (en) * | 2011-10-10 | 2012-02-22 | 合肥市百胜科技发展股份有限公司 | Guide centering adjustment device |
| CN104162551A (en) * | 2014-08-13 | 2014-11-26 | 西安交通大学 | Circular guide plate device of ball forming mechanism of bar ball rolling machine |
| CN108160720A (en) * | 2017-12-27 | 2018-06-15 | 桥运精密部件（苏州）有限公司 | A kind of STAINLESS STEEL WIRE guide groove |
| CN209448637U (en) * | 2019-03-11 | 2019-09-27 | 华东交通大学 | A kind of quick detachable capacitive electric converter |
| CN212397654U (en) * | 2020-06-29 | 2021-01-26 | 靖江精益冶金科技有限公司 | Six-cutting guide device |
-
2020
- 2020-06-29 CN CN202010611167.7A patent/CN111760916A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799464U (en) * | 2010-09-19 | 2011-04-20 | 合肥东方冶金设备有限公司 | Six-segmentation guide device |
| CN202045155U (en) * | 2011-02-16 | 2011-11-23 | 合肥东方节能科技股份有限公司 | Rolling direction adjustable guide clamping mechanism |
| CN102357538A (en) * | 2011-10-10 | 2012-02-22 | 合肥市百胜科技发展股份有限公司 | Guide centering adjustment device |
| CN104162551A (en) * | 2014-08-13 | 2014-11-26 | 西安交通大学 | Circular guide plate device of ball forming mechanism of bar ball rolling machine |
| CN108160720A (en) * | 2017-12-27 | 2018-06-15 | 桥运精密部件（苏州）有限公司 | A kind of STAINLESS STEEL WIRE guide groove |
| CN209448637U (en) * | 2019-03-11 | 2019-09-27 | 华东交通大学 | A kind of quick detachable capacitive electric converter |
| CN212397654U (en) * | 2020-06-29 | 2021-01-26 | 靖江精益冶金科技有限公司 | Six-cutting guide device |
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