CN1238740A - Unitary, high-load capacity plastics reel - Google Patents
Unitary, high-load capacity plastics reel Download PDFInfo
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- CN1238740A CN1238740A CN 97180054 CN97180054A CN1238740A CN 1238740 A CN1238740 A CN 1238740A CN 97180054 CN97180054 CN 97180054 CN 97180054 A CN97180054 A CN 97180054A CN 1238740 A CN1238740 A CN 1238740A
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Abstract
A unitary, high-load capacity plastic reel of lightweight design comprises first and second substantially circular flanged side portions, a drum portion formed between the flanged side portions, a central shaft hole extending linearly along a central axis of the reel between each flange portion, and a plurality of holes extending from each flange portion to partially within the drum portion parallel to the central shaft hole, the plurality of holes contributing to the lightweight design. A unitary reel forming mold for manufacturing the unitary reel consists of a gate opening enabling a plastics extrusion device to fill the mold. A centrally located mold-pin of tapered design is provided in the mold having an upper surface proximate the gate opening to facilitate even distribution of the plastics from the extrusion device to all parts within the mold.
Description
Technical field
The present invention relates generally to a kind of high-load capacity plastics reel, exactly, the present invention relates to a kind of unitary, high-load capacity plastics reel and manufacture method thereof.
Background technology
Many industry have used large-scale capacity plastics reel to reel, store and broadcast industrial cable (no matter whether these cables are non-conductives), and these bobbins all are many compound types or assembly type bobbin.For example, the U.S. Pat 5,605 before me, 305 have disclosed a kind of assembly type high capacity plastic cable bobbin, wherein tube portion and side flange be make separately and be assembled subsequently and become bobbin, introduce US5 as a reference at this, 605,305 content and description.
The assembly type high capacity cable bobbin of prior art has several shortcomings.At first, complicated fitting work and the many manufacturing procedures of most of existing assembly type bobbin needs.Such modular structure for example needs injection moulding to form two side flanges and extruding simultaneously cuts out central tube portion.Subsequently, after molded the flange part of bobbin is linked to each other with tube portion, this is normally by supersonic welding and/or realize by Steel Bolt.Usually, nuts and bolt fluffs moving, and this can cause bobbin unbalance.Therefore, for guaranteeing cable operating winding accurately and especially when with the speed coiling cable of nearly 7000 feet per minutes, it is necessary that the balance of these bobbins and/or bolt are tightened.
In another kind of assembly type bobbin structure, bobbin may be made of two injection molding parts, and each injection molding part comprises a flange part and half portion, and these two parts link to each other with the plastics locking part by Steel Bolt.In most of the cases, locking part being set between two and half portions rotates separately to prevent half other relatively half portion of portion.Disturbed spiral technology at these two and half portion places and the independent rotation between them.Plastics locking part itself often ruptures and the phenomenon that these two parts rotate separately occurs.Unfortunately, be difficult to detect locking part and when rupture, this is because they are positioned at bobbin inside and thereby can't see easily.
Another shortcoming is, assembly type bobbin of the prior art was original just not too durable, and this is because they have thin spot and stress point and are easy to fracture.Above-mentioned super sonic solder joint is an example.In addition, the flange part intensity of mainly bearing bending and flange part just was not enough to bear some step of wire rod manufacturing process originally.In addition, the assembly type capacity plastics reel in the most prior art possibly can't bear the dropping of several feet height between fork truck and the ground.Usually, when car collides flange again, fork truck itself will damage plastic flange.In addition, if cable resemble in process of production frequent appearance bending or fracture, then cable is wound up into the repeatedly interruption that causes the wire production process on the assembly type capacity plastics reel, if bobbin bending, distortion or fracture, then the user will lose bobbin.If bobbin need be tightened, then wire rod production line will have to be interrupted, and this is the subject matter that wire production manufacturers are faced.Steel bobbin manufacturer provides the maintenance service to many compound type bobbins that are out of shape or rupture now, and this is a biennialization business.The capacity plastics reel of fracture also finally is embedded in the soil by chopping usually.
The assembly type bobbin that has such prior art, promptly this steel bobbin are used to reel limitedly, and those make hot copper wire or the hot aluminium wires that typically have 150 temperature because of pushing.The steel bobbin is generally very heavy, and it is at least 120 pounds and its easy deformation, and when its lack of equilibrium, it causes vibration in winding process.They need continuous balance.Even bending almost is ND, it also may still cause dislocation in process of production, and this causes interrupted debatching of wire rod even wire rod fracture, and this will cause manufacturing line to interrupt and scrape off the part material.Therefore, the steel bobbin is used to transportation hardly, and this is because they are very heavy and cost is too high.
The integral type capacity plastics reel of exist actually, but these capacity plastics reels are very little very light, they are used to carry light silk or a small amount of coated wires, and promptly they do not have the ability (with regard to load-carrying capacity and size) of the heavy cable of carrying.These capacity plastics reels normally by be crushed to and they may need complicated afterproduct processing as machinework.
Be difficult to extrusion technique is used for big-and-middle-sized unitary, high-load bobbin, this is because material thickness and bobbin desirable strength cause extruding to be difficult to carry out.In addition, the large-scale required machinework of integral type bobbin is measured may cost very high in advance.
Therefore, people's an urgent demand provides a kind of very durable medium-sized unitary, high-load light plastic bobbin.
In addition, be starved of provide a kind of can be under the situation of machine operations behind the minimum molding of needs produced quickly and efficiently medium-sized unitary, high-load bobbin.
Summary of the invention
The present invention is a kind of integral type capacity plastics reel, and it has first flange part, second flange part and takes shape in tube portion between these two flange parts point-blank.The size of integral type bobbin and shape are beneficial to handles medium load and high capacity, and described bobbin comprises that the linearly extended central shaft hole of central axis of an axle along the line and it also are provided with many and are parallel to central shaft hole ground and partly stretch into a portion to alleviate the pore of bobbin weight.But the intensity of integral type bobbin is not affected, and light integral formula bobbin has 50 pounds～2000 pounds load-carrying capacity according to the diameter of its flange part and tube portion.This is because in fact eliminated the stress point that exists usually in many compound type bobbins in such integral type bobbin.
For moulding technology provides a kind of bounded system.Especially provide a kind of four sectional dies to form a complete bobbin forming cavity, one of them mold comprises a cast gate that allows molten plastic to flow into die cavity from extrusion press.Central shaft hole and many loss of weight recesses form in moulding process, and the center shaft opening needs of short duration secondary machine so that finish this central shaft hole.Therefore, the manufacture method of unitary, high-load bobbin rapidly and efficiently.
In the appended claims, particularly pointed out and constituted characteristics of the present invention and various new features that become this paper part.In order to understand the present invention, service advantages better and by using the specific purpose that realizes, should and represent the description of the preferred embodiment of the present invention referring to the accompanying drawings and the description below.
Brief description
Fig. 1 is the transparent view of unitary, high-load bobbin of the present invention.
Fig. 2 (a) shows the upper mold portion of bobbin mould, and Fig. 2 (b) is the viewgraph of cross-section along the upper mold portion of the AA line of Fig. 2 (a).
Fig. 3 (a) shows the lower mold portion of bobbin mould, and Fig. 3 (b) is the viewgraph of cross-section along the lower mold portion of the BB line of Fig. 3 (a).
Fig. 4 (a) shows the central side mold of bobbin mould, and Fig. 4 (b) is the viewgraph of cross-section along the central side mold of the CC line of Fig. 4 (a).
Fig. 5 is the cross sectional drawing of the full die before filling.
Fig. 6 shows the bobbin cavity that is full of fully.
Fig. 7 is the cross sectional drawing of integral type bobbin.
Embodiment
Fig. 1 shows the transparent view of unitary, high-load bobbin 50 (hereinafter referred to as " bobbin ").As its name suggests, the high capacity bobbin comprises the medium load that can bear as 50 pounds～1000 pounds, but it can bear bigger load.
As shown in Figure 1, bobbin 50 comprises two flange part 55a, 55b and a central tube portion 60, and the size of bobbin is enough to store materials such as concurrent amplification quantity cable, line.According to special purpose and customer requirements, the diameter of each flange part 55a, 55b can be 16 "～32 " or bigger, and tube portion 60 diameters are 12 "～22 " or bigger.Therefore, the load-carrying capacity of integral type bobbin and weight thereof change.For nearly weigh 30 pounds 16 " bobbin, anticipated duty are 50 pounds～100 pounds.For nearly weigh 50 pounds 22 " bobbin, anticipated duty are 100 pounds～500 pounds.For nearly weigh 100 pounds 30 " bobbin, anticipated duty are 250 pounds～1000 pounds.The thickness of each flange part 55a, 55b also will change and this thickness can change between one inch to several inches with customer requirements.Therefore, the above bobbin weight and the prediction of load range will change according to thickness of flange.
As shown in Figure 1, bobbin comprises the first central shaft hole portion 75, it pass each flange part 55a, 55b and tube portion 60 centers in case bobbin is installed in that cable is broadcasted or the spool of winding apparatus or core bar on the coiling that promotes cable materials and/or broadcast.Such as will be described, the major part of central shaft hole 75 is molded in moulding process, and the sub-fraction in hole is finished by machinework in secondary operation.Many hollow recesses or hole 80 are around central shaft hole portion 75, and these holes 80 also form in moulding process, and they are parallel to described axis hole ground and feed bobbin tube portion 60 inside from each flange part 55a, 55b.The purpose that these holes 80 are set is in order to alleviate bobbin weight and thereby to alleviate the bobbin load.As shown in Figure 1, offered eight holes, still, can offer hole according to required charge capacity greater or less than eight.The aperture can change according to required charge capacity and customer requirements.According to principle of design of the present invention, these holes are to offer in the process that forms the integral type bobbin, rather than in machining processes subsequently, form.
As known to the skilled person, can also machinework or be molded at least one drive hole 90 as shown in Figure 1 so that link to each other with user's the coiling/equipment of broadcasting and make bobbin at the coiling of cable or broadcast in the process and rotate.Come although draw, can contact edge's machinework of fixing cable when reeling with flange or be molded to additional starting cable hole at cable.
The method of making unitary, high-load bobbin of the present invention require with molten plastic inject following will be referring to the mould 100 that Fig. 2 (a)～Fig. 6 describes.Provide molten plastic by an extrusion press (not shown).The molten plastic kind that manufacturing integral type bobbin is used comprises any traditional thermoplastic resin commodity and the engineering resin commodity that contain or do not contain color concentrated additive, illuminating foaming agent and other increase flexibility, work life, rigidity and/or intensity, and this is comprising polypropylene, polyethylene, polystyrene resin, alkide resin, PVC, polycarbonate etc.When using some high-density polyethylene material or other heat proof material, formed integral type capacity plastics reel can be used for the operating winding of heated filament line.In addition, bobbin of the present invention can be the resin of handling again and/or reclaim (behind the industrial utilization and/or after user's use).In a preferred embodiment, make the output of extrusion press pass one and be arranged on the cast gate 110 in the molded section that mold is a mould 100 so that under pressure, molten plastic injected mould 100 (Fig. 5).In an example, the aperture of cast gate can be 2 "～4 ", but if desired, can enlarge described cast gate so that fill and make the large mold that large-scale bobbin is used.
As Fig. 2 (a)～shown in Figure 5, mould 100 is four sectional dies with upper mold portion 210, lower mold portion 220, first central part 230 and second central part 240, and this four part is by suitably parts such as pin, bolt 99a ... 99b connects together.The diameter of cast gate 110 can make itself and extrusion press 135 form and closely cooperate, thereby is enough to be full of at short notice osed top die cavity 150 from the molten plastic of extrusion press.It should be understood that the size of the extrusion press that molten plastic is provided and type and the size thereof that specification will depend on the integral type bobbin to a great extent thereof.
Fig. 2 (a) shows the view of the downside of upper mold portion 210, and Fig. 2 (b) shows along the cross sectional drawing of the upper mold portion 210 of the AA line of Fig. 2 (a).Upper mold portion 210 sizes are about 1 "～2 " as the little square billet of aluminium or steel and it has a central opening 215 that links to each other with extrusion press 135.Shown in Fig. 2 (a), 2 (b), the lower surface of upper mold portion comprises that also one forms the flange part of integral type bobbin 90 such as the round lip or the flange part 212 of flange part 55b (Fig. 1) shape.The split part that it should be understood that circumferential lip portion can be integral with the downside of upper mold portion or link to each other with described downside by bolt, its thickness preferably approximates the desired thickness of spool flange portion as 2 ".As shown in the birds-eye view of upper mold portion 210, also be provided with several bolt accommodation holes 208 among Fig. 2 (a) so that be contained in the round lip- region steel pin 218a, 218b (shown in Fig. 2 (b)) are fixed on the bolt on the upper mold portion bottom side, described bolt is outstanding downwards in die cavity.As following will the explanation, in the bobbin forming process, molten plastic flows in mould around steel pin and solidifies around steel pin, and the result has formed the hollow recess that leads to formed spool flange portion in tube portion, has formed low weight bobbin.Many bolt accommodation holes such as 204a have been offered ... 204d is so that be fastened on upper mold portion in the first center die portion and the second center die portion.
Fig. 3 (a) shows the top view of lower mold portion 210, and Fig. 3 (b) shows along the cross sectional drawing of the lower mold portion of the BB line of Fig. 3 (a).Shown in Fig. 3 (a), 3 (b), lower mold portion 220 is one and resembles the flat part 221 that forms the upper mold portion 210 and it preferably has similar thickness.As in the upper mold portion, lower mold portion has boss edge or the lip 222 that upwards extends (when keeping flat mould), and and the round lip of upper mold portion in such, the thickness of described lip approximates the ideal thickness of another flange part of formed bobbin.Also offered many bolt accommodation holes 223 in the lower mold portion in case fastening many in the die cavity 150 resemble shown in Figure 5 outstanding steel pin or aluminium pin 228a, 228b (shown in Fig. 3 (b)), the result is as being provided with pin 218a, 218b in upper mold portion, formed similar air pocket in formed bobbin tube portion.Single bolt accommodation hole 225 is opened on the center in lower mold portion circle lip district so that fasten outstanding large size steel pin or aluminium pin 229 near upper mold portion the mould tube portion.The effect of the solid pin member 229 of large size is the main portions that constitute the central shaft hole 75 of moulding bobbin.Such as will be explained, the remainder of axis hole is made by machinework simply.It should be understood that, four bolt accommodation hole 204a are set in upper mold portion ... 204d and hole 224a is set in lower mold portion ... 224d provides for serve exemplary purposes, according to design plan, the bolt quantity that is used for upper and lower mould portion is fixed on the sidepiece of center can be more or less.It should be understood that and with other additional mechanism providing additional operation such as clamping element or pressure piece mold to be fixed together.
Fig. 4 (a) shows the birds-eye view as the continuous center die portion 230,240 of the part of mould 100.Shown in Fig. 4 (a), each center die portion 230,240 provides hemicycle cylindrical openings 231,241 respectively, thereby has constituted the tube portion of integral type bobbin when they link to each other.Fig. 4 (b) shows along the cross sectional drawing of two center die parts of the line CC of Fig. 4 (a).The first center die portion comprises that at least one is used to hold the bolt accommodation hole 207a and the bolt accommodation hole (not shown) that is used to be connected lower mold portion 220 of the tie bolt 99a of upper mold portion 210.Should be understood that, can use other anchor clamps, screw element or pressure mechanism.Similar, shown in Fig. 4 (a), the second center die portion 240 is provided with the bolt accommodation hole 207b of the tie bolt 99b that is used to hold upper mold portion 210 and comprises the bolt accommodation hole (not shown) that connects lower mold portion 220.
As known to the those of skill in the art, injection-moulded plastic will shrink when cooling, thereby the size of mold 210,220,230,240 may enlarge slightly to guarantee the size of moulding bobbin accurately.For example, for describe clear for the purpose of, form 16 " diameter of the upper mold portion circle lip of (inch) flange part can be 17 " (inch).
Fig. 5 shows the preferred embodiment of the integral type bobbin mould 100 that has assembled, it show in die cavity 150, be fixed on floppily on the upper mold portion 210 on pin group 218a, 218b and in die cavity 150, be fixed on with raising up on the lower mold portion 220 downside pin group 228a, 228b and vertically with bobbin upper mould portion 210 on cast gate 110 raise up alignedly and be fixed on the solid center of large size pin member 229 on the upper mold portion 210, pin member 229 projection is to such degree, promptly sells 229 upper surface 221 and is located immediately at cast gate 110 belows.In one embodiment, the upper surface of pin and the distance between the mould gate are 3/8 "～5/8 " (inch), but this is not unalterable.Except the integral type bobbin that helps to make moulding was lighter, center pin 229 made that forming the bobbin central shaft holes becomes possibility.Center pin has also played from the cast gate 110 of upper mold portion 210 the molten plastic flow point has been loose to the shunting function at die cavity four sides.Center pin 229 is preferably tapered, and it has one for example than the thicker lower pin portion of last planar diameter and 3 "～5 " (inch) of the diameter little by 1/8 "～-3/8 " of the cast gate 110 of its top.Therefore, center pin to be to be about 2.0 °～4.5 ° angle tilt, thus in addition can make molten plastic stream from extrusion press pass cast gate and around center pin so that can be full of all parts of mould fully equably and help from mould, to take out the bobbin of moulding.The air drain length that forms each pin of pin group is about 6 "～12 " (inch) and diameter is about 2 "～6 " (inch) up and down, but it is preferably tapered.It will be appreciated that the pin size of dwindling has also shortened the cycle because of the less material of needs as length and the diameter that dwindles all pins thus with expendable weight.
In a preferred embodiment, extrusion press is with about 5000 pounds/inch
2Pressure output molten plastic, thereby be full of entire die in promptly 2 minutes～5 minutes at short notice, the filling time is depended on bobbin size.The power that only is extrusion press rotating screw bolt (not shown) just makes molten plastic fill mould.Extrusion press is according to 1) size 2 of bobbin to be formed) cast gate 3) SELF CL from the pressure of the molten plastic of extrusion press and after screw rod has rotated pre-fixing turn.Then, 4000 pounds/inch according to appointment under low pressure
2Pressure under carry out " being full of " operation and fill to realize completely mould.It should be understood that the mould filling mode also is variable, it may comprise by injection device annotates mode or mode injected molten material similar with it with injection moulding or structural foam mould.
Fig. 6 shows mould 100, and it has the die cavity 150 that is full of fully.As shown in Figure 6, be preferably in a bit of filling conduit or guide groove 80 are set in the mould, thereby the staff can adeptly fill up to guarantee each several part with pin check fully.
After being full of fully, mould 100 is immersed in cooling bath such as the tank fully, at once because cooling bath is a kind of mode of effective cooling large-sized parts.In a preferred embodiment, the temperature of cooling bath approximately is 40 °F, but cooling bath is not limited to this temperature, and it can change.In another embodiment, can be from the center and external cooling integral type bobbin, for example by taking shape in the cooling jacket around the mold component and in each pin, have the cooling-liquid cycle conduit, or cool off to shorten hardening time by nozzle to the mold ejector cooling water expansion tank so that cool off.
Approximately having cooled off 5 minutes～30 minutes or longer time back (hardening time depends on bobbin weight and/or size), unclamp upper and lower mould portion and side form portion and take out the moulding bobbin so that carry out last cooling and contraction.Should be understood that the keying of mould can be designed to an external tool or by with anchor clamps mold component being closed up or simplifying and/or automation by the pressure in injection moulding machine or similar devices by automatically " unloading the bolt device ".In about 24 hours contraction with further after the cooling, be machined to the molded lines axle and finish central shaft hole, and in order to obtain slickness, for example further fine limit work and rounding hole end face etc.
Fig. 7 shows the cross sectional drawing of the molding integral bobbin of the present invention that takes out from mould 100.As shown in Figure 7, needn't process little air pocket or pore 80, as mentioned above, under the situation that needn't undermine intensity, increase the pin size and will alleviate bobbin weight according to the charge capacity requirement.Central shaft hole is not fully hollow, and the fraction 85 of bobbin must carry out machinework so that finish central shaft hole 75 in secondary processing.It is desirable that the preferably tapered and secondary machine of central shaft hole has formed central shaft hole 75 according to the core bar of shaft size or winding apparatus.Preferably the size of axis hole 75 make it on most of up-coilers, to carry out cable/coil of wire around.
Said method is used to ideally process and resembles the so heavy big parts of high capacity bobbin, and such parts need the bounded system mould.Any other more complicated method is compared with method of the present invention may be high because of the cause cost of hardening time, die cost and equipment cost.But,, can adopt to resemble injection mo(u)lding, low-pressure structure foam mould notes, the injection mo(u)lding of gas assist type and the such molding methods of pressure molding according to above-mentioned principle of work.
More than describe and only show principle of work of the present invention.Though those skilled in the art can derive various not hereinbefore or shown in the accompanying drawing clearly statement can implement principle of work of the present invention and thereby drop on modification in spirit of the present invention and the protection domain.
Claims (10)
1. unitary, high-load light plastic bobbin, it comprises:
The roughly conglobate first flange sidepiece, the second flange sidepiece; Take shape in the tube portion between the described flange sidepiece; The central shaft hole of axle central axis straight-line extension along the line between each flange part; Many the holes that feed tube portion from each flange part partial parallel in central shaft hole ground, these holes help the light structure design of bobbin.
2. unitary, high-load capacity plastics reel as claimed in claim 1 is characterized in that, these many holes comprise from first group of hole of first flange part feeding tube portion and the second group of hole that feeds a portion from first group of hole of second flange part and this correspondingly.
3. unitary, high-load capacity plastics reel as claimed in claim 1 is characterized in that, the tapered and process secondary machine of this central shaft hole.
4. unitary, high-load capacity plastics reel as claimed in claim 2 is characterized in that, first, second group hole is symmetrically distributed basically.
5. unitary, high-load capacity plastics reel as claimed in claim 1 is characterized in that it can bear nearly 2000 pounds cable, linear load.
6. the mfg. moulding die of a unitary, high-load light plastic bobbin, it comprises: the upper mold portion that is used to form first side flange of this bobbin, be used to form the center side form portion of this bobbin tube portion, be used to form the mould portion of second side flange of this bobbin, this upper mold portion, center side form portion and lower mold portion form die cavity, this upper mold portion has and many extends the pin of first in the die cavity from its inside face part, this lower mold portion has and many extend the pin of second in the die cavity and one heart from inside face is located substantially on from its inside face part and stretch to the center pin of upper mold portion, this upper mold portion comprises a cast gate that holds molten plastic, and the molten plastic that this center pin can disperse to immerse through this cast gate is so that scatter molten plastic equably in die cavity.
7. the mfg. moulding die of unitary, high-load capacity plastics reel as claimed in claim 6 is characterized in that, described many first pins and second are sold basically respectively the upper and lower mould portion perpendicular to separately.
8. the mfg. moulding die of unitary, high-load capacity plastics reel as claimed in claim 6 is characterized in that, described a plurality of first pins and second pin are one to one.
9. the mfg. moulding die of unitary, high-load capacity plastics reel as claimed in claim 6 is characterized in that, described a plurality of first pins and second pin are symmetrically distributed basically.
10. the mfg. moulding die of unitary, high-load capacity plastics reel as claimed in claim 6 is characterized in that, described every first pin and every second pin are all tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97180054 CN1238740A (en) | 1997-09-25 | 1997-09-25 | Unitary, high-load capacity plastics reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97180054 CN1238740A (en) | 1997-09-25 | 1997-09-25 | Unitary, high-load capacity plastics reel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1238740A true CN1238740A (en) | 1999-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97180054 Pending CN1238740A (en) | 1997-09-25 | 1997-09-25 | Unitary, high-load capacity plastics reel |
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| CN (1) | CN1238740A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328358A (en) * | 2010-11-24 | 2013-09-25 | 林肯环球股份有限公司 | Multi-spool adapter |
| CN105905693A (en) * | 2016-05-20 | 2016-08-31 | 南通富之岛寝具发展有限公司 | Textile spool with detachable yarn baffles |
| CN109733961A (en) * | 2019-03-06 | 2019-05-10 | 文涛杰 | A kind of anti-sticking cable architecture of enameled wire spool and anti-sticking line method |
-
1997
- 1997-09-25 CN CN 97180054 patent/CN1238740A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328358A (en) * | 2010-11-24 | 2013-09-25 | 林肯环球股份有限公司 | Multi-spool adapter |
| CN103328358B (en) * | 2010-11-24 | 2015-04-08 | 林肯环球股份有限公司 | Multi-spool adapter |
| CN105905693A (en) * | 2016-05-20 | 2016-08-31 | 南通富之岛寝具发展有限公司 | Textile spool with detachable yarn baffles |
| CN109733961A (en) * | 2019-03-06 | 2019-05-10 | 文涛杰 | A kind of anti-sticking cable architecture of enameled wire spool and anti-sticking line method |
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