CN112551036B - Quenched and tempered steel forging positioning device and positioning process - Google Patents
Quenched and tempered steel forging positioning device and positioning process Download PDFInfo
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- CN112551036B CN112551036B CN202011332722.9A CN202011332722A CN112551036B CN 112551036 B CN112551036 B CN 112551036B CN 202011332722 A CN202011332722 A CN 202011332722A CN 112551036 B CN112551036 B CN 112551036B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
- B65G13/02—Roller-ways having driven rollers
- B65G13/06—Roller driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
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Abstract
The invention discloses a quenched and tempered steel forging positioning device and a positioning process, which are characterized in that: comprises a frame, a notch arranged on the frame and a positioning mechanism arranged in the notch; the positioning mechanism comprises a hollow frame, a discharging mechanism, a jacking hydraulic cylinder and a plurality of groups of supporting rollers, the right end of the hollow frame is rotatably connected with the right side of the bottom of the gap through a first rotating shaft, the bottom of the jacking hydraulic cylinder is rotatably connected with a machine frame below the gap, an output shaft at the top of the jacking hydraulic cylinder is rotatably connected with the left side of the bottom surface of the hollow frame, the plurality of groups of supporting rollers are rotatably installed in the hollow frame from left to right at intervals, and the supporting rollers are perpendicular to the front side and the back side of the gap; the top right side of the hollow frame is vertically provided with a baffle, the bottom of the baffle is provided with a through groove, and the bottom of the through groove is flush with the top surface of the hollow frame. The invention improves the convenience of forging positioning and ensures the processing quality of products.
Description
Technical Field
The invention relates to the field of forging, in particular to a quenched and tempered steel forging positioning device and a positioning process.
Background
When quenched and tempered steel is machined, after the quenched and tempered steel is heated and forged, fragments such as oxide skin and the like can appear on the heating position and the forging, and manual cleaning at a later stage is needed. Meanwhile, in the conveying process, the conveying stability is affected due to easy deviation. Therefore, the technical problem is solved by the skilled person in the art.
Disclosure of Invention
The invention aims to provide a quenched and tempered steel forging positioning device and a positioning process.
In order to achieve the purpose, the invention adopts the technical scheme that: a quenched and tempered steel forging positioning device comprises a rack and a positioning mechanism arranged on the rack, wherein a notch is formed in the rack, and the positioning mechanism is arranged in the notch;
the positioning mechanism comprises a hollow frame, a discharging mechanism, a jacking hydraulic cylinder and a plurality of groups of supporting rollers, the right end of the hollow frame is rotatably connected with the right side of the bottom of the gap through a first rotating shaft, the bottom of the jacking hydraulic cylinder is rotatably connected with a machine frame below the gap, an output shaft at the top of the jacking hydraulic cylinder is rotatably connected with the left side of the bottom surface of the hollow frame, the plurality of groups of supporting rollers are rotatably installed in the hollow frame from left to right at intervals, and the supporting rollers are perpendicular to the front side and the back side of the gap;
a baffle is vertically arranged on the right side of the top of the hollow frame, a through groove is formed in the bottom of the baffle, and the bottom of the through groove is flush with the top surface of the hollow frame;
the discharging mechanism is arranged on the rear side of the top surface of the hollow frame;
the top surface of the hollow frame is flush with the top surface of the rack in a retraction state of the output shaft of the jacking hydraulic cylinder; and under the state that the output shaft of the jacking hydraulic cylinder extends out, the left side of the top of the hollow frame is arranged above the top surface of the rack, and the hollow frame is inclined downwards from left to right.
In the technical scheme, the discharging mechanism comprises a connecting rod, a connecting hydraulic cylinder and a plurality of groups of material turning pieces, two ends of the connecting rod are rotatably mounted on the rear side of the top of the hollow frame, the connecting rod is perpendicular to the first rotating shaft and the supporting roll, the bottom of the connecting hydraulic cylinder is rotatably connected with the bottom of the rear side of the hollow frame, a connecting plate is arranged on the rear side of the middle of the connecting rod, and an output shaft of the connecting hydraulic cylinder is rotatably connected with the rear side of the connecting plate; the material turning pieces are arranged on the connecting rods from left to right, each group of material turning pieces are arranged right opposite to adjacent supporting rollers, the front ends of the material turning pieces are arranged below the adjacent supporting rollers when the output shaft of the connecting hydraulic cylinder extends out, and the rear ends of the material turning pieces are arranged above the rear side of the top surface of the hollow frame; and under the retraction state of the output shaft of the connecting hydraulic cylinder, the rear end of the material turning part is arranged below the top surface of the rack, and the front end of the material turning part is arranged above the top surface of the hollow frame.
In the technical scheme, the material turning part comprises a front side plate and a rear side plate, the rear end of the front side plate is fixedly connected with the connecting rod, the front end of the rear side plate is connected with the rear end of the front side plate, an included angle of 120-150 degrees is formed between the front side plate and the rear side plate, an upward limiting rod is arranged at the top of the front end of each group of front side plates, and the limiting rods are perpendicular to the top surface of the front side plate; under the connection pneumatic cylinder output shaft state of stretching out, the posterior lateral plate set up in the rear side of cavity frame top surface top, the front end of preceding curb plate reaches the top of gag lever post sets up in the below between the adjacent backing roll, just the front end of preceding curb plate is close to the front side setting of cavity frame.
Among the above-mentioned technical scheme, be equipped with the multiunit groove of stepping down in the frame of breach rear side, every group the stirring spare is just right the groove setting of stepping down, connect under the pneumatic cylinder output shaft retraction state, the rear end of rear side board sets up in corresponding the below of groove of stepping down, the front end of preceding curb plate set up in the top surface top of hollow frame.
In the technical scheme, two groups of first conical bulges are symmetrically arranged on the outer edge surface of the supporting roller and are symmetrically arranged on the front side and the rear side of the supporting roller respectively, and the diameter of the inner end of each first conical bulge is smaller than that of the outer end of each first conical bulge.
In the above technical scheme, a plurality of groups of heat dissipation through grooves are uniformly distributed in the middle of the first conical protrusion in an annular manner, and the inner end and the outer end of each heat dissipation through groove are respectively communicated with the inner end surface and the outer end surface of the first conical protrusion.
In order to achieve the purpose, the invention adopts a quenched and tempered steel forging positioning process, which comprises the following steps:
firstly, the product rolls backwards from the front end of the rack and falls into the hollow frame, and is supported by a plurality of groups of supporting rollers;
secondly, the output shaft of the jacking hydraulic cylinder extends out to push the hollow frame to rotate clockwise along the first rotating shaft, so that the hollow frame inclines downwards from left to right;
in the second step, after the hollow frame is jacked up and inclined, the product can also move rightwards along the supporting roller, so that the right end of the product is abutted against the baffle and is limited by the baffle; after the product is also tilted with the hollow frame, some debris on the surface of the product may fall off the right side;
fourthly, after the right side of the product is contacted with the baffle, the output shaft of the jacking hydraulic cylinder retracts, so that the hollow frame returns to the original position, and the product is parallel to the horizontal plane; then an output shaft connected with the hydraulic cylinder retracts to drive the material turning piece to rotate clockwise, so that the front end of the material turning piece rotates upwards, the rear end of the material turning piece rotates downwards, the front end of the material turning piece can jack up a product on the supporting roll to roll towards the rear side, and the product is ejected from the hollow frame to roll onto the top surface of the rack;
and fifthly, connecting the output shaft of the hydraulic cylinder to extend out to drive the material turning part to return to the original position, and positioning a group of products.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the product is supported by the rack in a rolling manner, the hollow frame is arranged, the product rolls onto the supporting roller of the hollow frame, one end of the product is lifted by the rotation of the hollow frame, the product is inclined and collides with the baffle plate, fragments such as oxide skin on the surface of the product are knocked and dropped, and the product is sent out by the discharging mechanism, so that the stability of a product conveying position is ensured, and the efficiency and the quality of a subsequent processing position are ensured.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic side view of a positioning mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a positioning mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic end view of the junction of the support roller and the first conical projection according to one embodiment of the present invention.
Wherein: 1. a frame; 2. a notch; 3. a hollow frame; 4. a jacking hydraulic cylinder; 5. a support roller; 6. a first rotating shaft; 7. a baffle plate; 8. a through groove; 9. a connecting rod; 10. connecting a hydraulic cylinder; 11. turning over the material; 12. a connecting plate; 13. a front side plate; 14. a rear side plate; 15. a limiting rod; 16. a yielding groove; 17. a first conical projection; 18. the heat dissipation leads to the groove.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1 to 4, a quenched and tempered steel forging positioning device comprises a frame 1 and a positioning mechanism arranged on the frame, wherein a notch 2 is arranged on the frame, and the positioning mechanism is arranged in the notch;
the positioning mechanism comprises a hollow frame 3, a discharging mechanism, a jacking hydraulic cylinder 4 and a plurality of groups of supporting rollers 5, the right end of the hollow frame is rotatably connected with the right side of the bottom of the gap through a first rotating shaft 6, the bottom of the jacking hydraulic cylinder is rotatably connected with the rack below the gap, an output shaft at the top of the jacking hydraulic cylinder is rotatably connected with the left side of the bottom surface of the hollow frame, the plurality of groups of supporting rollers are rotatably arranged in the hollow frame from left to right at intervals, and the supporting rollers are perpendicular to the front side surface and the back side surface of the gap;
a baffle 7 is vertically arranged on the right side of the top of the hollow frame, a through groove 8 is arranged at the bottom of the baffle, and the bottom of the through groove is flush with the top surface of the hollow frame;
the discharging mechanism is arranged on the rear side of the top surface of the hollow frame;
the top surface of the hollow frame is flush with the top surface of the rack in a retraction state of the output shaft of the jacking hydraulic cylinder; and under the state that the output shaft of the jacking hydraulic cylinder extends out, the left side of the top of the hollow frame is arranged above the top surface of the rack, and the hollow frame is inclined downwards from left to right.
In the embodiment, during actual use, a product after preliminary forging rolls backwards into the hollow frame from the front end of the rack, the product is supported by a plurality of groups of supporting rollers, then an output shaft of the jacking hydraulic cylinder extends out to jack the left side of the hollow frame, so that the hollow frame is inclined, meanwhile, the left side of the product is also lifted, the product moves towards the lower part of the side after being stressed, and rapidly drops rightwards through rolling support of the supporting rollers, because of the existence of the baffle, the baffle can block the right end of the product, at the moment, the product collides with the baffle, so that impurities such as oxide skin on the surface of the product can drop, meanwhile, the position of the product can be repositioned, then the output shaft of the jacking hydraulic cylinder retracts, the product is parallel to the horizontal plane again, the discharging mechanism works, the product in the hollow frame is taken out to the rear side of the rack and continuously rolls towards the rear side of the rack, rolling to the next working procedure. At this in-process, the product is given the location by the cavity frame at the middle part of frame for the right-hand member of product is close to the right-hand member of frame, and the product is when removing once more like this, and the position is more stable, prevents that the product from breaking away from the frame, guarantees the stability that the product was carried, and when guaranteeing follow-up forging, forging support is better, reduces the influence of impurity pair to forging.
Referring to fig. 1 to 3, the discharging mechanism comprises a connecting rod 9, a connecting hydraulic cylinder 10 and a plurality of groups of material turning pieces 11, two ends of the connecting rod are rotatably mounted on the rear side of the top of the hollow frame, the connecting rod is perpendicular to the first rotating shaft and the supporting roll, the bottom of the connecting hydraulic cylinder is rotatably connected with the bottom of the rear side of the hollow frame, a connecting plate 12 is arranged on the rear side of the middle of the connecting rod, and an output shaft of the connecting hydraulic cylinder is rotatably connected with the rear side of the connecting plate; the material turning pieces are arranged on the connecting rods from left to right, each group of material turning pieces are arranged right opposite to adjacent supporting rollers, the front ends of the material turning pieces are arranged below the adjacent supporting rollers when the output shaft of the connecting hydraulic cylinder extends out, and the rear ends of the material turning pieces are arranged above the rear side of the top surface of the hollow frame; and under the retraction state of the output shaft of the connecting hydraulic cylinder, the rear end of the material turning part is arranged below the top surface of the rack, and the front end of the material turning part is arranged above the top surface of the hollow frame.
In this embodiment, normally, the front end of the material turning member is located below the space between the adjacent supporting rollers, so that when the product is located on the supporting rollers, the rear end of the material turning member is located above the top surface of the hollow frame, and when the product rolls backwards to the hollow frame, even if the rolling speed is higher, the product can be blocked by the material turning member even if the product directly moves backwards through the supporting rollers. When the product needs to be separated from the supporting roll and move backwards, the output shaft connected with the hydraulic cylinder retracts, the material turning piece rotates anticlockwise, the front end of the material turning piece faces upwards, the rear end of the material turning piece faces downwards, namely, the front end of the material turning piece separates the product on the supporting roll from the hollow frame, rolls backwards to separate from the hollow frame and rolls to the rack and the roller conveying line.
Referring to fig. 1-3, the material turning part comprises a front side plate 13 and a rear side plate 14, the rear end of the front side plate is fixedly connected with the connecting rod, the front end of the rear side plate is connected with the rear end of the front side plate, an included angle of 120-150 degrees is formed between the front side plate and the rear side plate, an upward limiting rod 15 is arranged at the top of the front end of each group of front side plates, and the limiting rods are perpendicular to the top surface of the front side plate; under the connection pneumatic cylinder output shaft state of stretching out, the posterior lateral plate set up in the rear side of cavity frame top surface top, the front end of preceding curb plate reaches the top of gag lever post sets up in the below between the adjacent backing roll, just the front end of preceding curb plate is close to the front side setting of cavity frame.
In this embodiment, through the setting of gag lever post, like this when preceding curb plate overturns up, can utilize the gag lever post to block the front end of product for the product can be blocked by gag lever post and preceding curb plate, prevents that the product from overturning again when upwards removing and breaking away from the backing roll and falling into the front side of frame or in the hollow frame, guarantees that the product can be smooth break away from towards the back removal above the backing roll.
Referring to fig. 1, be equipped with multiunit groove 16 of stepping down in the frame of breach rear side, every group the stirring spare is just right the groove setting of stepping down, under the connection pneumatic cylinder output shaft retraction state, the rear end of rear side board set up in corresponding the below of groove of stepping down, the front end of preceding curb plate set up in the top surface top of hollow frame. Through the arrangement of the abdicating groove, the rotation of the material turning piece is convenient.
Referring to fig. 1 to 4, two sets of first conical protrusions 17 are symmetrically arranged on the outer edge surface of the supporting roller, the two sets of first conical protrusions are symmetrically arranged on the front side and the rear side of the supporting roller respectively, and the diameter of the inner end of each first conical protrusion is smaller than that of the outer end of each first conical protrusion.
Through the bellied setting of two sets of first toper, the backing roll constitutes one by the arc structure like this, also the middle part of arc mechanism is recessed, when the product rolls above the backing roll like this, can be spacing by two sets of first toper archs, prevent that the product from breaking away from the backing roll because the rolling speed is fast slightly, guarantee simultaneously when hollow frame slopes, the orientation right side that the product can be smooth removes, the product can not incline, guarantee the stability and the quality of removal, also prevent simultaneously that the product from breaking away from hollow frame.
Referring to fig. 4, a plurality of groups of heat dissipation through grooves 18 are uniformly distributed in the middle of the first conical protrusion in an annular manner, and the inner end and the outer end of each heat dissipation through groove are respectively communicated with the inner end surface and the outer end surface of the first conical protrusion. Because the product itself has high temperature, in order to prevent that first toper arch and product contact time overlength from leading to the temperature to rise and warp, through the setting of heat dissipation logical groove, prolong first toper protruding life, prevent the emergence of deformation phenomenon as far as.
In order to achieve the purpose, the invention adopts a quenched and tempered steel forging positioning process, which comprises the following steps:
firstly, the product rolls backwards from the front end of the rack and falls into the hollow frame, and is supported by a plurality of groups of supporting rollers;
secondly, the output shaft of the jacking hydraulic cylinder extends out to push the hollow frame to rotate clockwise along the first rotating shaft, so that the hollow frame inclines downwards from left to right;
in the second step, after the hollow frame is jacked up and inclined, the product can also move rightwards along the supporting roller, so that the right end of the product is abutted against the baffle and is limited by the baffle; after the product is also tilted with the hollow frame, some debris on the surface of the product may fall off the right side;
fourthly, after the right side of the product is contacted with the baffle, the output shaft of the jacking hydraulic cylinder retracts, so that the hollow frame returns to the original position, and the product is parallel to the horizontal plane; then an output shaft connected with the hydraulic cylinder retracts to drive the material turning piece to rotate clockwise, so that the front end of the material turning piece rotates upwards, the rear end of the material turning piece rotates downwards, the front end of the material turning piece can jack up a product on the supporting roll to roll towards the rear side, and the product is ejected from the hollow frame to roll onto the top surface of the rack;
and fifthly, connecting the output shaft of the hydraulic cylinder to extend out to drive the material turning part to return to the original position, and positioning a group of products.
Claims (5)
1. The utility model provides a quenching and tempering steel forging positioner which characterized in that: the positioning device comprises a rack and a positioning mechanism arranged on the rack, wherein a notch is formed in the rack, and the positioning mechanism is arranged in the notch;
the positioning mechanism comprises a hollow frame, a discharging mechanism, a jacking hydraulic cylinder and a plurality of groups of supporting rollers, the right end of the hollow frame is rotatably connected with the right side of the bottom of the gap through a first rotating shaft, the bottom of the jacking hydraulic cylinder is rotatably connected with a machine frame below the gap, an output shaft at the top of the jacking hydraulic cylinder is rotatably connected with the left side of the bottom surface of the hollow frame, the plurality of groups of supporting rollers are rotatably installed in the hollow frame from left to right at intervals, and the supporting rollers are perpendicular to the front side and the back side of the gap;
a baffle is vertically arranged on the right side of the top of the hollow frame, a through groove is formed in the bottom of the baffle, and the bottom of the through groove is flush with the top surface of the hollow frame;
the discharging mechanism is arranged on the rear side of the top surface of the hollow frame;
the top surface of the hollow frame is flush with the top surface of the rack in a retraction state of the output shaft of the jacking hydraulic cylinder; when the output shaft of the jacking hydraulic cylinder extends out, the left side of the top of the hollow frame is arranged above the top surface of the rack, and the hollow frame is obliquely arranged downwards from left to right;
the discharging mechanism comprises a connecting rod, a connecting hydraulic cylinder and a plurality of groups of material turning pieces, two ends of the connecting rod are rotatably mounted on the rear side of the top of the hollow frame, the connecting rod is perpendicular to the first rotating shaft and the supporting roll, the bottom of the connecting hydraulic cylinder is rotatably connected with the bottom of the rear side of the hollow frame, a connecting plate is arranged on the rear side of the middle of the connecting rod, and an output shaft of the connecting hydraulic cylinder is rotatably connected with the rear side of the connecting plate; the material turning pieces are arranged on the connecting rods from left to right, each group of material turning pieces are arranged right opposite to adjacent supporting rollers, the front ends of the material turning pieces are arranged below the adjacent supporting rollers when the output shaft of the connecting hydraulic cylinder extends out, and the rear ends of the material turning pieces are arranged above the rear side of the top surface of the hollow frame; under the retraction state of the output shaft of the connecting hydraulic cylinder, the rear end of the material turning part is arranged below the top surface of the rack, and the front end of the material turning part is arranged above the top surface of the hollow frame;
the material turning part comprises a front side plate and a rear side plate, the rear end of the front side plate is fixedly connected with the connecting rod, the front end of the rear side plate is connected with the rear end of the front side plate, an included angle of 120-150 degrees is formed between the front side plate and the rear side plate, an upward limiting rod is arranged at the top of the front end of each group of front side plates, and the limiting rods are perpendicular to the top surface of the front side plate; under the connection pneumatic cylinder output shaft state of stretching out, the posterior lateral plate set up in the rear side of cavity frame top surface top, the front end of preceding curb plate reaches the top of gag lever post sets up in the below between the adjacent backing roll, just the front end of preceding curb plate is close to the front side setting of cavity frame.
2. The quenched and tempered steel forging positioning device of claim 1, wherein: the rack of breach rear side is equipped with the multiunit groove of stepping down, and every group the stirring spare is just right the groove setting of stepping down, connect under the pneumatic cylinder output shaft retraction state, the rear end of posterior lateral plate sets up in corresponding the below in groove of stepping down, the front end of anterior lateral plate set up in hollow frame's top surface top.
3. The quenched and tempered steel forging positioning device of claim 1, wherein: the outer fringe face symmetry of backing roll is equipped with two sets of first toper archs, and is two sets of first toper arch respectively the symmetry set up in the front side and the rear side of backing roll, the bellied inner diameter of first toper is less than the bellied outer end diameter of first toper.
4. The quenched and tempered steel forging positioning device of claim 3, wherein: the middle part of the first conical protrusion is annularly and uniformly provided with a plurality of groups of heat dissipation through grooves, and the inner end and the outer end of each heat dissipation through groove are respectively communicated with the inner end surface and the outer end surface of the first conical protrusion.
5. A quenched and tempered steel forging and positioning process applying the quenched and tempered steel forging and positioning device of claim 1 comprises the following steps:
firstly, the product rolls backwards from the front end of the rack and falls into the hollow frame, and is supported by a plurality of groups of supporting rollers;
secondly, the output shaft of the jacking hydraulic cylinder extends out to push the hollow frame to rotate clockwise along the first rotating shaft, so that the hollow frame inclines downwards from left to right;
in the second step, after the hollow frame is jacked up and inclined, the product can also move rightwards along the supporting roller, so that the right end of the product is abutted against the baffle and is limited by the baffle; after the product is also tilted with the hollow frame, some debris on the surface of the product may fall off the right side;
fourthly, after the right side of the product is contacted with the baffle, the output shaft of the jacking hydraulic cylinder retracts, so that the hollow frame returns to the original position, and the product is parallel to the horizontal plane; then an output shaft connected with the hydraulic cylinder retracts to drive the material turning piece to rotate clockwise, so that the front end of the material turning piece rotates upwards, the rear end of the material turning piece rotates downwards, the front end of the material turning piece can jack up a product on the supporting roll to roll towards the rear side, and the product is ejected from the hollow frame to roll onto the top surface of the rack;
and fifthly, connecting the output shaft of the hydraulic cylinder to extend out to drive the material turning part to return to the original position, and positioning a group of products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332722.9A CN112551036B (en) | 2020-11-24 | 2020-11-24 | Quenched and tempered steel forging positioning device and positioning process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332722.9A CN112551036B (en) | 2020-11-24 | 2020-11-24 | Quenched and tempered steel forging positioning device and positioning process |
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| CN112551036A CN112551036A (en) | 2021-03-26 |
| CN112551036B true CN112551036B (en) | 2022-04-22 |
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| CN114516545A (en) * | 2022-01-14 | 2022-05-20 | 首钢京唐钢铁联合有限责任公司 | Tinned plate stacking device for transverse cutting production line |
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| FI20000872A0 (en) * | 2000-04-12 | 2000-04-12 | Raute Oyj | Inverter for disc shaped objects |
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|---|---|---|---|---|
| CN201545503U (en) * | 2009-10-14 | 2010-08-11 | 江苏天奇物流系统工程股份有限公司 | Tire overturning machine |
| CN206156195U (en) * | 2016-10-17 | 2017-05-10 | 百耐尔河北建材科技有限公司 | Transporter of coiled materials |
| CN206395294U (en) * | 2017-01-04 | 2017-08-11 | 重庆联陆机械有限公司 | New conveyer frames |
| CN209871543U (en) * | 2019-04-22 | 2019-12-31 | 嘉兴格鲁博机械有限公司 | Iron core feeding mechanism |
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