CN108726128B - Flexible cable suspension device of glass mother rod for continuous production of glass child bar - Google Patents
Flexible cable suspension device of glass mother rod for continuous production of glass child bar Download PDFInfo
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- CN108726128B CN108726128B CN201810448685.4A CN201810448685A CN108726128B CN 108726128 B CN108726128 B CN 108726128B CN 201810448685 A CN201810448685 A CN 201810448685A CN 108726128 B CN108726128 B CN 108726128B
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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
- B65G35/00—Mechanical conveyors not otherwise provided for
- B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention discloses a flexible hanging device for a glass mother rod for continuous production of glass child rod materials. Belongs to the technical field of hanging devices. The glass mother rod hanging device mainly solves the problems that a glass mother rod hanging device is prone to being inclined, a thin iron wire is inconvenient to tie up and cannot be reused in an existing manual hanging mode. It is mainly characterized in that: consists of a fixed hanging unit and a movable hanging unit; the fixed hanging unit comprises a hanging seat and an elastic locking mechanism; the movable hanging unit comprises a flexible steel wire rope, an upper hanging core and a movable clamp, wherein the upper hanging core is connected to one end of the flexible steel wire rope and can be matched with the hanging seat in a sleeved mode; the lower end of the movable clamp is provided with an annular groove. The invention has the characteristics of higher operation safety, better flexibility, convenient operation and repeated use, and is mainly used for flexible hanging of the glass mother rod in the continuous production process of the glass sub-rod.
Description
Technical Field
The invention belongs to the technical field of hanging devices, and particularly relates to a flexible hanging device for a glass mother rod in a glass sub-rod continuous production process.
Background
The secondary drawing process of the glass rod material is to bake, melt and soften the glass mother rod and then draw the glass mother rod into glass sub-rods with different diameters and specifications. According to the drawing process requirement, the glass mother rod needs to be vertically hung. Generally, a manual hanging mode is adopted, a ring-shaped groove is firstly ground on a grinding machine at the position of the glass mother rod close to the upper end part, then the glass mother rod is tightly wound and tied by a thin iron wire, and then the glass mother rod is hung on a hanging hook. The principle mode is shown in figure 1.
The operation mode of the hanging has some disadvantages:
(1) when a circle of annular groove is formed in the glass mother rod on the grinding machine, glass slag is splashed and cracked, so that potential safety hazards are caused;
(2) the grooves are irregular and have different depths, which are not beneficial to binding and fixing;
(3) when the binding is carried out by using the thin iron wires, the binding is very inconvenient because the wire pliers are used for repeatedly winding the binding to prevent slipping; and the sharp edges at the periphery of the glass concave ring groove can be cracked when the glass is bundled;
(4) due to the asymmetry of iron wire bundling for various reasons, the glass mother rod is inclined when being hung, so that the drawing of the daughter rod is influenced;
(5) the bundled iron wires are difficult to recover and cannot be reused.
Disclosure of Invention
The invention aims to overcome the defects of the hanging mode and further improve the operation status of the glass mother rod hanging, and designs a hanging device capable of being quickly assembled, disassembled and hung. Has the characteristics of higher operation safety, better flexibility, convenient operation and repeated use.
The technical solution of the invention is as follows: the utility model provides a flexible cable suspension device of glass mother stick for glass child bar continuous production which characterized in that: consists of a fixed hanging unit and a movable hanging unit; the fixed hanging unit comprises a hanging seat and an elastic locking mechanism; the movable hanging unit comprises a flexible steel wire rope, an upper hanging core and a movable clamp, wherein the upper hanging core is connected to one end of the flexible steel wire rope and can be matched with the hanging seat in a sleeved mode; the lower end of the movable clamp is provided with an annular groove.
The movable clamp comprises a fixed clamp head and a movable detachable clamp head; the lower end of the fixed chuck is provided with a semi-annular groove; the lower end of the movable detachable chuck is provided with a semi-annular groove; the fixed chuck and the movable detachable chuck are provided with matched fixed mounting holes.
According to the technical scheme, an inner cavity hole is formed in the lower end of the hanging seat, and a threaded hole is formed in the side wall of the hanging seat; the elastic locking mechanism consists of a valve core sleeve, a pressing cap, a small hand wheel, a return spring and a movable valve core, and is arranged on a threaded hole on the side wall of the hanging seat through an external screw thread on the valve core sleeve; the outer part of the upper hanging core is in clearance fit with the hole of the inner cavity of the hanging seat, the waist part is provided with an annular groove matched with the movable valve core, and the center is provided with a steel wire rope passing through hole.
The other end of the flexible steel wire rope is connected with a fixed chuck in the movable clamp through a lower hanging core; the lower part of the lower hanging core is provided with an external screw, and the center of the lower hanging core is provided with a steel wire rope passing through hole; the upper end of the fixed chuck in the movable clamp is provided with an inner cavity threaded hole matched with the lower hanging core; the lower hanging core is arranged on an inner cavity threaded hole of the fixed chuck in the movable clamp.
In the technical scheme of the invention, the upper end part of the hanging seat is provided with four mounting holes.
The diameter of the flexible steel wire rope in the technical scheme is 2 mm.
In the technical scheme of the invention, the upper end part of the upper hanging core is provided with a 120-degree conical pit, and the lower end part of the lower hanging core is provided with a 120-degree conical pit; the upper hoisting core and the lower hoisting core are connected together through copper-based surfacing welding at two ends of the flexible steel wire rope.
The wall thickness of the hanging seat in the technical scheme of the invention is 4-6 mm; the clearance between the upper hanging core and the hanging seat is 0.1mm-0.25 mm; the diameter of the steel wire rope of the lower hanging core penetrating through the through hole is 3mm, the wall thickness is 5.5mm, the outer diameter is 14mm, and the thread state is a coarse thread structure.
The wall thickness of the valve core sleeve in the technical scheme of the invention is 4-6 mm; the small hand wheel is connected with the movable valve core through a connecting pin, the connecting pin is a stainless steel wire with the diameter of 2mm, and two ends of the connecting pin are riveted.
The movable clamp in the technical scheme of the invention is made of an antioxidant stainless steel material.
The working principle of the invention is as follows:
according to the production process requirement, an annular groove is formed in a special clamp at the upper end of a glass mother rod to be melted, baked, softened and drawn, the annular groove of the glass mother rod is buckled by a fixed chuck and a movable detachable chuck in a movable hanging unit, the glass mother rod and the movable hanging unit are assembled together, a small hand wheel in the fixed hanging unit is pulled backwards, an upper hanging core in the movable hanging unit buckled with the glass mother rod is plugged into a hanging seat in the fixed hanging unit, the small hand wheel in the fixed hanging unit is loosened, a movable valve core in the fixed hanging unit enters a hanging seat cavity under the action of a return spring, the left end of the movable valve core is clamped in the groove of the upper hanging core of the movable hanging unit → the movable hanging unit buckled with the glass mother rod does not fall, and the secondary hanging process of the glass rod is completed.
Drawings
FIG. 1 is a schematic view of a glass master rod for hanging by hand.
FIG. 2 is a schematic structural diagram of the present invention
In the figure: 1. a hanging seat; 2. a valve core sleeve; 3. a compression cap; 4. a small hand wheel; 5. a coupling pin; 6. a return spring; 7. a movable valve core; 8. an upper hanging core; 9. a flexible wire rope; 10. a lower hanging core; 11. a fixed chuck; 12. a removable collet; 13. a glass master rod.
Detailed Description
The invention provides a flexible suspension device capable of being quickly assembled, disassembled and suspended, which is designed for improving the operation status of a glass mother rod suspension.
As shown in FIG. 2, the invention relates to a flexible hanging device for a glass mother rod for continuous production of glass child rod materials, which comprises a fixed hanging unit and a movable hanging unit.
The fixed hanging unit is composed of a hanging seat 1, a valve core sleeve 2, a pressing cap 3, a small hand wheel 4, a connecting pin 5, a return spring 6 and a movable valve core 7. In this unit, the invention is given corresponding structures and shapes according to the function and functional requirements of each constituent element.
The hanging seat 1 has the structural characteristics that: the lower end is provided with an inner cavity opening which is used for being conveniently connected with the movable hanging unit. The right side is provided with a threaded hole, the upper end part is provided with four mounting holes, and the hanging seat 1 can be connected with other carrier structures (such as a rack and the like) through the four mounting holes at the upper end part. Considering the bearing strength of the structure and the rigidity condition in the use process, the wall thickness of the hanging seat 1 is generally designed to be 4-6mm, and the design concept enables the hanging seat 1 to be compact and economical on one hand, and reduces the weight of the hanging seat 1 on the other hand.
The valve core sleeve 2 has the structural characteristics that: the left end of the valve core sleeve 2 is provided with an external thread which can be connected with the hanging seat 1 through the thread, the thread is designed into a coarse thread structure for the convenience and time saving of screwing operation, the right end of the valve core sleeve 2 is also provided with a connecting thread with a coarse thread structure, and the inside of the valve core sleeve 2 is provided with a small-sized through hole and a large-sized counter bore. The wall thickness design also follows the principle of 4-6 mm.
The pressing cap 3 has a structure design with a coarse thread and a small-sized through hole, and the pressing cap 3 is used for screwing and pressing and preventing elements connected with the pressing cap from being separated.
The small hand wheel 4 is designed with a small size through hole and a large size flange and fixing pin hole. In order to prevent the flange from slipping when being held by hands, the cylindrical surface of the flange is rolled with a plurality of patterns.
The connecting pin 5 is used for fixing the small hand wheel 4, so that the small hand wheel 4 cannot slide and fall off with other connected elements when pulled rightwards, and as the connecting pin 5 is thin and has the diameter size of 2mm, in order to prevent the small hand wheel 4 from being frequently pulled and sheared, the connecting pin 5 adopts 2mm stainless steel wires, and after the connecting pin 5 and the small hand wheel 4 are fixed, the two end parts of the connecting pin are riveted by an anti-channeling process.
the reset spring 6 is a standard component, in this hanging unit, in order not to make the dynamics that the operator pulled the small hand wheel 4 too big, the reset spring 6 has adopted the mode of selection of small diameter steel wire and big pitch, reset spring 6's effect is when pulling the loose hand of 4 er back of small hand wheel right, the small hand wheel 4 returns original position under reset spring 6 effect, according to hooke's law, reset spring 6's restoring force is decided by formula F = K △ X, wherein K is the coefficient of stiffness (this coefficient is decided by the material of spring), △ X is decided by reset spring 6's compression capacity.
The movable valve core 7, which is a core element in the fixed hanging unit, is installed in the valve core sleeve 2 as seen in fig. 2, the right end rod part is sleeved with the return spring 6, the pressing cap 3 penetrates through the movable valve core 7 and the internal thread thereof is screwed on the valve core sleeve 2 to prevent the return spring 6 from jumping out, the small hand wheel 4 penetrates through the movable valve core 7 and is riveted on the movable valve core 7 through the connecting pin 5, because the left end part of the movable valve core 7 needs to bear weight, in order to increase the bending strength of the movable valve core, tempering and quenching are adopted in the manufacturing process, in order to ensure the flexibility of the movable valve core 7 when moving left and right, the cylindrical surface of the movable valve core 7 is manufactured by adopting a grinding process, and.
The movable hanging unit is composed of an upper hanging core 8, a flexible steel wire rope 9, a lower hanging core 10, a fixed chuck 11 and a movable detachable chuck 12.
The upper hanging core 8 has the structural characteristics that: the upper part is provided with a conical pit with an included angle of 120 degrees, the middle part is provided with a thin through hole, the waist part is provided with an annular groove, and the groove has the function of facilitating the left end part of the movable valve core 7 in the fixed hanging unit to clamp the upper hanging core 8 and preventing the upper hanging core from sliding downwards. In order to ensure that the left end part of the movable valve core 7 smoothly enters the annular groove, the width of the groove is designed and manufactured to be 2mm larger than that of the left end part of the movable valve core 7. In addition, the connection between the movable hanging unit and the fixed hanging unit is realized by the insertion of the upper hanging core 8, so that the hanging seat 1 and the upper hanging core 8 are designed to be in clearance fit as shown in fig. 2, the clearance is too small, the insertion is not smooth, the whole movable hanging unit can shake when the clearance is too large, and tests show that the clearance is more suitable between 0.1mm and 0.25mm, and the clearance is 0.15 mm.
The flexible steel wire rope 9 is a purchased standard part, because the hung object is not very heavy (W is less than or equal to 10 Kg), the diameter of the flexible steel wire rope 9 can bear 100Kg when being 2mm and can bear 200Kg when being 4mm through the calculation and check of tensile strength, and the flexibility of the steel wire rope with the diameter of 2mm is much stronger than that of the steel wire rope with the diameter of 4mm through the flexibility comparison test when the flexible steel wire rope is hung on a heavy object, so the steel wire rope with the diameter of 2mm is adopted as an intermediate connector in the hanging device.
The structural characteristics of the lower suspension core 10 are: the lower end part is designed into a conical pit with an included angle of 120 degrees, the pit is used for fixing the flexible steel wire rope 9 in a brazing mode in the process so as not to be separated after the flexible steel wire rope 9 penetrates through the upper hanging core 8 and the lower hanging core 10, welding scars cannot bulge to influence assembly during surfacing due to the pit, the wall thickness of the lower hanging core 10 also meets the design principle of 4-6mm, the wire penetrating aperture of the flexible steel wire rope 9 is designed to be 3mm when the diameter of the flexible steel wire rope is 2mm, the wall thickness is designed to be 5.5mm, the outer diameter is 14mm, and the thread state is in a coarse thread structure.
The fixed chuck 11 is characterized in that: the upper part is provided with a M14 coarse thread hole which is used for matching when being connected with the lower hanging core 10, the lower part is provided with a semi-annular groove, in addition, the cylindrical surface of the fixed chuck 11 is provided with two fixing holes, and because the fixed chuck 11 enters a high-temperature hearth in the using process, the fixed chuck 11 is made of stainless steel materials with better oxidation resistance from the perspective of preventing oxidation.
The movable detachable chuck 12 is structurally characterized in that: the lower part is designed with a semi-annular groove, the cylindrical surface is designed with two fixing holes, and the detachable chuck 12 also adopts stainless steel material with better oxidation resistance for preventing oxidation.
Generally, several sets of movable hanger units are provided for continuous production.
The diameter of the mother glass rod 13 to be hung is 40mm, the length is about 1600mm, before hanging, an annular groove is formed on a special clamp, then the groove at the upper end part of the mother glass rod 13 to be hung is buckled by flanges at the port parts of the fixed chuck 11 and the movable detachable chuck 12, and then the mother glass rod 13 and the movable hanging unit are assembled together by clamping through two fixed holes on the cylindrical surfaces of the fixed chuck 11 and the movable detachable chuck 12 to form a new unit to be hung. Thereby completing the preparation work before hanging.
The new unit to be hung which is prepared before the hanging is finished enters a hanging program, and then the hanging step is finished according to the working principle of the invention.
And because the temperature that the flexible hanging device that finishes the hanging step is very high in the subsequent process, the temperature when the movable hanging unit among them withdraws from the fixed hanging unit finally will also be very high, so its fixed chuck 11 and activity detachable chuck 12 can not be dismantled immediately and clamped glass mother rod 13 again, in order to facilitate the next round of hanging operation, in the scene of continuous production operation, will generally be according to the needs of production technology, several sets of the same flexible hanging device.
Claims (9)
1.⑵ the ⑵ glass ⑵ mother ⑵ rod ⑵ flexible ⑵ hanging ⑵ device ⑵ for ⑵ continuous ⑵ production ⑵ of ⑵ glass ⑵ child ⑵ bars ⑵ is ⑵ characterized ⑵ by ⑵ comprising ⑵ a ⑵ fixed ⑵ hanging ⑵ unit ⑵ ⑴ ⑵ and ⑵ a ⑵ movable ⑵ hanging ⑵ unit ⑵, ⑵ wherein ⑵ the ⑵ fixed ⑵ hanging ⑵ unit ⑵ comprises ⑵ a ⑵ hanging ⑵ seat ⑵ ⑴ ⑵ and ⑵ an ⑵ elastic ⑵ locking ⑵ mechanism ⑵, ⑵ the ⑵ elastic ⑵ locking ⑵ mechanism ⑵ comprises ⑵ a ⑵ valve ⑵ core ⑵ sleeve ⑵, ⑵ a ⑵ pressing ⑵ cap ⑵, ⑵ a ⑵ small ⑵ hand ⑵ wheel ⑵, ⑵ a ⑵ reset ⑵ spring ⑵ ⑴ ⑵ and ⑵ a ⑵ movable ⑵ valve ⑵ core ⑵. ⑵
2. The flexible hanging device for the glass mother rod for the continuous production of the glass child rod materials as claimed in claim 1, is characterized in that: the movable clamp comprises a fixed chuck
And a movable detachable chuck
(ii) a Fixed chuck
The lower end of the groove is provided with a semi-annular groove; movable dismounting type chuck
The lower end is provided with a semi-annular groove; fixed chuck
And a movable detachable chuck
And a matched fixed mounting hole is arranged on the bracket.
3.⑴ the ⑴ flexible ⑴ hanging ⑴ device ⑴ for ⑴ the ⑴ glass ⑴ mother ⑴ rods ⑴ for ⑴ continuous ⑴ production ⑴ of ⑴ the ⑴ glass ⑴ child ⑴ bar ⑴ materials ⑴ according ⑴ to ⑴ claim ⑴ 1 ⑴ or ⑴ 2 ⑴ is ⑴ characterized ⑴ in ⑴ that ⑴ an ⑴ inner ⑴ cavity ⑴ hole ⑴ is ⑴ formed ⑴ in ⑴ the ⑴ lower ⑴ end ⑴ of ⑴ a ⑴ hanging ⑴ seat ⑴, ⑴ threaded ⑴ holes ⑴ are ⑴ formed ⑴ in ⑴ the ⑴ side ⑴ wall ⑴ of ⑴ the ⑴ hanging ⑴ seat ⑴, ⑴ the ⑴ outer ⑴ portion ⑴ of ⑴ an ⑴ upper ⑴ hanging ⑴ core ⑴ is ⑴ in ⑴ clearance ⑴ fit ⑴ with ⑴ the ⑴ inner ⑴ cavity ⑴ hole ⑴ of ⑴ the ⑴ hanging ⑴ seat ⑴, ⑴ an ⑴ annular ⑴ groove ⑴ matched ⑴ with ⑴ a ⑴ movable ⑴ valve ⑴ core ⑴ - ⑴ train ⑴ is ⑴ formed ⑴ in ⑴ the ⑴ waist ⑴ of ⑴ the ⑴ upper ⑴ hanging ⑴ core ⑴, ⑴ and ⑴ a ⑴ steel ⑴ wire ⑴ rope ⑴ penetrating ⑴ through ⑴ hole ⑴ is ⑴ formed ⑴ in ⑴ the ⑴ center ⑴ of ⑴ the ⑴ upper ⑴ hanging ⑴ core ⑴. ⑴
4. the flexible hanging device of the mother glass rod for continuous production of the glass sub-rod materials as claimed in claim 1 or 2, wherein the other end of the flexible steel wire rope has a self-sustaining point with a fixed core in a movable clampClamping head
the lower part of the lower hanging core ⑽ is provided with an external screw, the center ⑽ is provided with a steel wire rope passing through hole, and the fixed chuck in the movable clamp
⑽ the ⑽ upper ⑽ end ⑽ of ⑽ the ⑽ lower ⑽ hanging ⑽ core ⑽ is ⑽ provided ⑽ with ⑽ an ⑽ inner ⑽ cavity ⑽ threaded ⑽ hole ⑽ matched ⑽ with ⑽ the ⑽ lower ⑽ hanging ⑽ core ⑽, ⑽ and ⑽ the ⑽ lower ⑽ hanging ⑽ core ⑽ is ⑽ arranged ⑽ in ⑽ a ⑽ fixed ⑽ chuck ⑽ of ⑽ the ⑽ movable ⑽ clamp ⑽
On the threaded hole of the inner cavity.
5. the flexible hanging device for the glass mother rod for continuous production of the glass sub-rod materials as claimed in claim 1 or 2, is characterized in that four mounting holes are formed in the upper end portion of the hanging seat.
6. the flexible hanging device for the mother glass rod for continuous production of the glass sub-rod materials as claimed in claim 1 or 2, wherein the diameter of the flexible wire rope is 2 mm.
7. the flexible hanging device for the glass mother rod for continuously producing the glass child rod material ⑽ is characterized in that the upper end portion of the upper hanging core ⑽ is provided with a 120-degree conical pit, the lower end portion of the lower hanging core ⑽ is provided with a 120-degree conical pit, ⑻ and the upper hanging core ⑻ and the lower hanging core are connected together through copper-based overlaying at both ends.
8. the flexible hanging device for the glass mother rod for continuous production of the glass child bar materials according to claim 4, ⑽ is characterized in that the wall thickness of the hanging seat ⑽ is 4-6mm, the gap between the upper hanging core ⑻ and the hanging seat ⑽ is 0.1-0.25 mm, the diameter of the steel wire rope passing through the lower hanging core ⑽ is 3mm, the wall thickness ⑽ is 5.5mm, the outer diameter ⑽ is 14mm, ⑻ and the steel wire rope ⑽ is in a coarse-tooth structure in a threaded state.
9. the flexible hanging device for the glass mother rod for continuous production of glass child bars as claimed in claim 3, ⑵ is characterized in that the wall thickness of the valve core sleeve ⑵ is 4-6mm, ⑷ and the small hand wheel ⑷ and the movable valve core ⑺ are connected through a connecting pin
Coupling, connecting pin
Is a stainless steel wire with the diameter of 2mm, and two ends of the stainless steel wire are riveted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448685.4A CN108726128B (en) | 2018-05-11 | 2018-05-11 | Flexible cable suspension device of glass mother rod for continuous production of glass child bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448685.4A CN108726128B (en) | 2018-05-11 | 2018-05-11 | Flexible cable suspension device of glass mother rod for continuous production of glass child bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108726128A CN108726128A (en) | 2018-11-02 |
| CN108726128B true CN108726128B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810448685.4A Active CN108726128B (en) | 2018-05-11 | 2018-05-11 | Flexible cable suspension device of glass mother rod for continuous production of glass child bar |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS606707B2 (en) * | 1976-06-28 | 1985-02-20 | 太平洋セメント株式会社 | gripper for bottles |
| JPH07330125A (en) * | 1994-06-06 | 1995-12-19 | Singer Nikko Kk | Stacker hanger |
| CN201773526U (en) * | 2010-02-03 | 2011-03-23 | 石狮市创意纸塑制品有限公司 | Hanger |
| CN202687762U (en) * | 2012-06-01 | 2013-01-23 | 天津思创机械制造有限公司 | Lifting tool for rectangular pipe fittings |
| CN203545429U (en) * | 2013-11-15 | 2014-04-16 | 陕西钢铁集团有限公司 | Bar material lifting tool |
| EP3529216A1 (en) * | 2016-10-24 | 2019-08-28 | Prysmian S.p.A. | Suspending device for optical fibre preforms |
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2018
- 2018-05-11 CN CN201810448685.4A patent/CN108726128B/en active Active
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