CN102601159B - Single-arm active winding and unwinding machine - Google Patents
Single-arm active winding and unwinding machine Download PDFInfo
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- CN102601159B CN102601159B CN201110200223.9A CN201110200223A CN102601159B CN 102601159 B CN102601159 B CN 102601159B CN 201110200223 A CN201110200223 A CN 201110200223A CN 102601159 B CN102601159 B CN 102601159B
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Abstract
The invention discloses a single-arm active winding and unwinding machine. An expansion and compression mechanism of the winding and unwinding machine comprises a sliding bearing housing. The external part of the sliding bearing housing is connected with tensioning shoes through tensioning connecting rods. A bidirectional thrust bearing, a first compression spring and a limiting part which are sheathed on a pull rod are arranged in the sliding bearing housing from the internal end to the external end. A first shaft shoulder is arranged on the pull rod. The first compression spring is clamped between the limiting part and the first shaft shoulder of the pull rod. A force applying structure used for outwards pushing the bidirectional thrust bearing is arranged on the pull rod. The inner ring of the bidirectional thrust bearing is installed on a first inner ring sleeve. The first inner ring sleeve can be sheathed on the pull rod in a way that the first inner ring sleeve can outwards slide along the axial direction of the pull rod. The first inner ring sleeve is arranged within the exterior outer ring of the bidirectional thrust bearing and is provided with a second shaft shoulder which is used for inwards and tightly pressing the inner ring of the bidirectional thrust bearing. The first compression spring directly or indirectly applies elastic force onto the external end surface of the first inner ring sleeve. The single-arm active winding and unwinding machine has the advantage that the tensioning force applied to the internal side of a steel band roll can be always kept.
Description
Technical field
The invention belongs to the uncoiling field of sheet metal strip, belong to large group of the B21C47 of IPC classification number, also can be used for the uncoiling field of the industries such as weaving, printing and dyeing, papermaking, plastics, particularly relate to single armed initiative rolling-unrolling machine.
Background technology
At present, along with the fast development of Flux-cored Wire Industry, flux-cored wire manufacturer more and more payes attention to the non-cutting time of minimizing equipment operation, to enhance productivity.Wherein reducing required time and the replacement frequency of each replacing steel coil strip is one of them important means.So emerged in recent years, use exoskeletal accurate after-combustion steel coil strip to unreel, this steel coil strip can directly utilize steel band itself to form steel coil strip, and after steel band all discharges, on unreeling machine, what is not remaining, can directly put new steel coil strip again.Also can adopt paper web as the inner tube of a tyre of steel coil strip, steel band is back and forth wrapped on paper web, forms steel coil strip, and after steel band all discharges, from unreeling machine collection last time cylinder, paper web can also be for being wound around new steel band again.Make to carry out in this way unwinding and rewinding and not only reduced workman and push to, push time and the labour intensity of I-beam wheel, and while having solved I-beam wheel as the carrier of steel coil strip, the turnover problem of I-beam wheel and the consumption problem of I-beam wheel.
But existing both arms are put with machine, have plenty of existing single head is put to the repeated combination with machine, for example CN201105294Y " two reel uncoiler " discloses the two reel uncoilers in a kind of cold-strip steel uncoiling field, it contains two cover running parts, two cover reel parts, a set of telescopic section, divide into rotating part, left, mandrel in the main shaft of right reel is connected respectively with the cylinder bar of telescopic oil cylinder by a pair of thrust bearing, left, the running part of right reel and telescopic oil cylinder are fixed on revolving body simultaneously, telescopic oil cylinder is with left, the dead in line of the mandrel of right reel, be fixed on the top of revolving body, the casing of two cover reels is separately fixed at the both sides of revolving body.Its two cover reels, discontinuous operation, when a reel normal operation, another reel is upper volume simultaneously, has omitted service working time, thereby has improved production efficiency, has not only reduced the floor space of production line, and has saved equipment investment.
The design of this uncoiler is straight and narrow, and the device such as brake gear, transmission device is available in all varieties, but wherein the main shaft of reel is fixed on casing by bearing.This equipment is by (though the not directly explanation in literary composition of two self-aligning roller bearings, but the technical staff in this area can be from Figure of description unquestionable definite bearing type) be arranged on two risers of casing, and main shaft and reel (bearing the part of steel coil strip weight) lean out casing, formed cantilever beam structure, the cantilever beam structure of this and single-arm uncoiling machine is actually duplicate.Designer overlaps common single-arm uncoiling machine back-to-back.Caused so very large apart from nearer or perhaps nearer apart from the bearing part shaft strength of reel.For addressing this problem, or use the strongly-typed bearing of bearing capacity instead, or use larger sized bearing instead, the two all can increase the manufacturing cost of equipment; The sacrifice bearing life of just take is cost.
And adopting this structure will cause the length of rotatable body of both arms unreeling machine larger, this rotatable body has comprised two cover running parts, two cover reel parts, a set of telescopic section.On the one hand, greatly increased the weight of the weight of rotatable body, from two huge gussets (the limit switch of each side is arranged on gusset), just can find out, if not so large casing, so heavy casing, supports without so large gusset so.Thereby make to utilize manpower to turn round and become impossible, thus just must cause it to need motor to drive above-mentioned these rotatable bodies to turn round, and then another step has caused the complexity of equipment.On the other hand, it is that main bearing part and the distance of the centre of gyration have increased greatly that this structure makes reel, heavier part is shifted out to the scope that base contacts with ground outward, if only have the steel coil strip of a side on unreeling machine, and the steel coil strip of opposite side has been finished, the equipment center of gravity that has comprised so steel coil strip will deflect away from the support scope of base, so will improve greatly the risk that equipment topples like this.
In addition, this unreeling machine adopts wedge expanding-contracting type mechanism swelling steel coil strip: wedge expanding-contracting type mechanism comprises a three-jaw inclined wedge-shaped structure, oblique expansion block is connected with dovetail shaped drift slot with interior wedge, in mobile wedge can promote that oblique expansion block is opened or oppositely mobile in wedge oblique expansion block is retracted, and can realize self-locking by wedge angle, the interior swelling mode of this structure is generally applied on the uncoiler of large-scale heavy duty.This uncoiler is all to adopt cantilever structure, in order to guarantee to bear heavier coil of strip, that for the main shaft of load-bearing, will do is thick, in addition, process oblique expansion block and interior wedge bothers very much, and by inclined-plane, slide to realize the harmomegathus of three-jaw, wearing and tearing are large, need to carry out specific surface treatment to rubbing surface, cause the uncoiler of this large-scale heavy duty expensive, bulky, as can be seen here, for the lighter situation of coil of strip, adopt the uncoiler of this swelling mode extremely uneconomical, be unfavorable for promoteing the wider application.This interior swelling mode also needs often to add lubricating oil to be safeguarded, otherwise very easily wears away the inclined working of oblique expansion block and interior wedge, causes shorten service life.
And, in existing rolling/unreeling machine, if there is employing cylinder/hydraulic cylinder to realize the swelling function of swelling watt, all do not there is auto-lock function.That is, when cylinder/hydraulic cylinder or the gas circuit that is connected with it/fluid pressure line occur to reveal, the air pressure or the hydraulic pressure that in cylinder body, act on piston decline, and swelling watt will lose enough tension forces.When swelling watt loses enough tension forces, for the machine of vertical unreeling/rolling, still can, due to the deadweight of material volume, material volume still can be positioned in swelling watt (or being referred to as reel).But for the machine of unreel/rolling of level, tension force while being easy to due to rolling/unreel or the reasons such as whirling vibration of machine cause material volume to fly out or expect that volume scatters, once roll up and occur to fall apart, generally raw material cannot be reverted to original state again, so this just causes serious security incident or causes serious wastage of material.
If but simply cylinder/the hydraulic cylinder with auto-lock function is applied to unreel/winder field, can there is following problem again: 1, the self-locking of cylinder/hydraulic cylinder is only to keep the position of actuating strut motionless, and cannot guarantee to provide a lasting constantly active force to make swelling watt have enough tension forces to come the inner side of distensible material volume, and only meet swelling watt, can not retract, between swelling watt and material volume inner side, it is only the non-active tension force of simple support force initiatively, be actually like this rise not tight, for example the disclosed spool material retractable feeder of patent application 201010138295.0 does not just adopt self-locking cylinder to hold out against I-beam wheel, if the internal diameter of 2 material volumes is not completely unified, internal diameter is less than normal slightly, will cause the piston of self-locking cylinder/hydraulic cylinder full action to put in place, self-locking device cannot start, internal diameter is bigger than normal slightly, and after will causing the piston full action of self-locking cylinder/hydraulic cylinder to put in place, self-locking device starts, swelling watt also cannot be rolled up inner side by distensible material, also still should have more than is needed self-locking cylinder/hydraulic cylinder.
So self-locking cylinder/hydraulic cylinder is applied to unreel/winder field, avoid gas leakage or the impact of leakage on machine safety in operation and reliability, be that those skilled in the art thirsts for solving and the problem of failing to succeed always.
Summary of the invention
The present invention provides a kind of single armed initiative rolling-unrolling machine for solving the technical problem existing in known technology, and these unwinding and rewinding can remain the tension force to steel coil strip inner side.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: a kind of single armed initiative rolling-unrolling machine, comprise base and be arranged on the casing on described base, described casing one side is provided with a bearing sleeve, in described bearing sleeve, be coated with pull bar, described bearing sleeve external support has turnbarrel, on described turnbarrel, be connected with actuating unit and be arranged with some swellings watt outward, between described swelling watt and described turnbarrel, be provided with support link; The inner of described pull bar is connected with driving mechanism by connecting plate, and the outer end of described pull bar is connected with support and contracting mechanism,
Described driving mechanism is locking hydraulic cylinder or locking cylinder;
Described support and contracting mechanism comprises sliding bearing chamber;
The outside of described sliding bearing chamber is connected with described swelling watt by swelling connecting rod;
Indoor two-direction thrust bearing, the first Compress Spring and the limiting component being sleeved on described pull bar that be provided with successively from the inner to outer end of described sliding bearing, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for outwards promoting the force application structure of described two-direction thrust bearing;
The inner ring of described two-direction thrust bearing is arranged on the first inner ring sleeve,
Described the first inner ring sleeve is can the mode along pull rod shaft to outside slip being sleeved on described pull bar, described the first inner ring sleeve is in the outer outer ring of described two-direction thrust bearing with interior and be provided with for inwardly holding out against second shaft shoulder of two-direction thrust bearing inner ring, and described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.
Advantage and good effect that the present invention has are: in support and contracting mechanism, adopt Compress Spring power transmission, the tension force that mechanism provides is greater than the required support force of material volume, make mechanism can remain the tension force to steel coil strip inner side, make the operation of machine more stable, reliable, more convenient to operate.And in support and contracting mechanism, adopt Compress Spring power transmission, can make up the rigging error of machine, reduce the manufacturing cost of machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the left view that the embodiment of the present invention 1 is installed after outer baffle;
Fig. 4 is the structural representation of the embodiment of the present invention 1 outer baffle;
Fig. 5 is that the side of Fig. 4 is cutd open structural representation;
Fig. 6 is the partial structurtes schematic diagram of embodiment 1 pull bar while being drawn to diverse location;
Fig. 7 is the partial structurtes schematic diagram after the present invention improves embodiment 1;
Fig. 8 is the front view of jointing in the embodiment of the present invention 1;
Fig. 9 is the side view of Fig. 8;
Figure 10 is the schematic diagram of the embodiment of the present invention 2 the first structures;
Figure 11 is the partial schematic diagram of the embodiment of the present invention 2 the second structures;
Figure 12 is the partial schematic diagram of the embodiment of the present invention 2 the third structures;
Figure 13 is the partial structurtes schematic diagram of the embodiment of the present invention 3;
Figure 14 is the outer baffle structural representation of the embodiment of the present invention 4;
Figure 15 is the sectional view of Figure 14;
Figure 16 is the partial structurtes schematic diagram of the embodiment of the present invention 5.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
Refer to Fig. 1～Fig. 2, an initiative rolling-unrolling machine, comprises base 1 and the casing being rotationally connected with base 1, and casing comprises base plate 4 and affixed two of left and right riser 32 thereon, wherein a bearing sleeve 26 is established in the outside of any riser 32, in order to form single arm structure.This riser 32 inner side establish one group of start cylinder, this group start cylinder drives and is installed on the pull bar 17 in bearing sleeve 26.In bearing sleeve 26, be provided with the sintered metal powder bearing of supporting rod 17.Above-mentioned start cylinder can be locking hydraulic cylinder or locking cylinder.
Turnbarrel 27 outer is arranged with some swellings watts 7, between every swelling watts 7 and turnbarrel 27, is equipped with two parallel isometric support link 9.In the present embodiment, swelling watts 7 is provided with inner reinforced plate, and turnbarrel 27 is provided with outer gusset, and one end of swelling watt inner reinforced plate 8 and two support link 9 is hinged, and the outer gusset 11 of the other end of two support link 9 and turnbarrel is hinged.These two parallel isometric support link make swelling watt can only carry out parallel, and any rotation or swing do not occur.
Above-mentioned support and contracting mechanism comprises that the inner is positioned at turnbarrel 27 ports and outer end is positioned at the sliding bearing chamber 13 outside this port of turnbarrel, and this sliding bearing chamber 13 is in axial sliding connection with turnbarrel 27, and internal-and external diameter cooperatively interacts, and relative rotation does not circumferentially occur.In the outer end of sliding bearing chamber 13, have a shaft shoulder on excircle, the inner of limit slippage bearing chamber 13 puts in the degree of depth of turnbarrel 27.The part that sliding bearing chamber 13 is positioned at outside port is that outer end portion is provided with outer gusset, between sliding bearing chamber 13 and every swelling watt inner reinforced plate 8, be equipped with swelling connecting rod 10, one end of swelling connecting rod 10 and swelling watt inner reinforced plate 8 is hinged, and the other end is hinged on the outdoor gusset 12 of sliding bearing.The swelling connecting rod 10 being connected with same swelling watt inner reinforced plate and support link 9 are positioned at same plane and are splayed arranges.
In sliding bearing chamber 13, from the inner, be provided with the two-direction thrust bearing 20, dish spring support ring 19, disk spring group 18 and the disc spring sleeve 15 that are sleeved on successively on pull bar 17, disk spring group 18 is contained in disc spring sleeve 15, disc spring sleeve is bowl-type, the bottom of bowl is sleeved on pull bar, and disc spring sleeve 15 is positioned at the outside of two-direction thrust bearing 20 and opening towards two-direction thrust bearing 20; The outer end of pull bar 17 passes the bottom of disc spring sleeve 15 and is provided with one section of external screw thread, is connected with nut 16 on the screw thread of pull bar outer end, the bottom outside adjacency of nut 16 and disc spring sleeve 15.
The inner ring of two-direction thrust bearing 20 is arranged between the first inner ring sleeve 21 and the second inner ring sleeve 22.The first inner ring sleeve 21 be sleeved on pull bar 17 in the mode that can axially outwards slide along pull bar 17, and between pull bar 17, be larger matched in clearance, causes unnecessary wearing and tearing to avoid the first inner ring sleeve 21 and pull bar 17 to come in contact.The second inner ring sleeve 22 suits are fixed on the first inner ring sleeve 21.The Outboard Sections of the first inner ring sleeve 21 outer walls is provided with a step surface, and this step surface props up the outside of two-direction thrust bearing 20 inner rings, and the lateral surface of the second inner ring sleeve 22 props up the inner side of two-direction thrust bearing 20 inner rings.The outer ring of two-direction thrust bearing 20 is arranged in sliding bearing chamber 13, and the outer end of sliding bearing chamber 13 is connected with bearing (ball) cover 14 by bolt, and this bearing (ball) cover 14 is a tubular construction, and the outer end of tubular is provided with flange, for being connected with the outer face of sliding bearing chamber; The inner of tubular props up the outer ring, outside of two-direction thrust bearing 20, for the location of this outer ring.
On pull bar 17, be also provided with a circlip for shaft 23, circlip 23 is positioned at the inner side of the first inner ring sleeve 21 and the second inner ring sleeve 22, for promoting the first inner ring sleeve 21 and the second inner ring sleeve 22.Before each material loading, pull bar is extrapolated, support reduction device is outwards moved, and then drive swelling watt to close up to facilitate upper volume by swelling connecting rod, because required thrust is little, so be provided with a circlip for shaft 23 on pull bar, the installation site of this circlip for shaft 23 is the inner side of swelling watt first inner ring sleeve 21 while strutting completely.When pull bar 17 moves laterally, circlip 23 promotes two-direction thrust bearing 20 by the first inner ring sleeve 21 and the second inner ring sleeve 22, two-direction thrust bearing 20 promotes sliding bearing chamber 13 by bearing (ball) cover 14, make to move outside sliding bearing chamber 13, drive the lower end of swelling connecting rod 10 outwards to move, swelling connecting rod 10 pulls swelling watt 7 downward translations, completes closing up of swelling watt, so that the smooth installation of steel coil strip.
When pull bar 17 moves to the inside, the nut 16 being threaded connection in its end promotes disc spring sleeve 15, disc spring sleeve 15 by force transmission on disk spring group 18, the stressed contraction of disk spring group 18, active force is delivered on the first inner ring sleeve 21 being connected with two-direction thrust bearing 20 by dish spring support ring 19, the first inner ring sleeve 21 passes to sliding bearing chamber 13 by two-direction thrust bearing 20 by power, move to the inside sliding bearing chamber 13, drive the lower end of swelling connecting rod 10 to move inward, swelling connecting rod 10 promote swellings watts 7 upwards translation open, complete the swelling process of material volume.
The length of above-mentioned disc spring sleeve 15 should guarantee when butterfly spring group 18 does not stress completely, distance between the bottom inside of disc spring sleeve 15 and two-direction thrust bearing 20 is greater than the decrement of butterfly spring, in order to avoid butterfly spring group 18 contacts with two-direction thrust bearing 20 because of disc spring sleeve 15 when compression, the problem that butterfly spring group 18 cannot continue compression occurs.
The supporting structure of above-mentioned turnbarrel 27 is selected single thrust bearing, in support and contracting mechanism, select the structure of two-direction thrust bearing, because in actual production process, swelling watt can not swelling be arrived angle as shown in Figure 1, can only swelling arrive the position as shown in the first half as left in Fig. 6, the size that this part represents is the theoretical internal diameter of material volume.If swelling is to the angle shown in Fig. 1, support link is vertical with the axis of pull bar 17, and swelling watt swelling is to full-size so.When the internal diameter size of steel coil strip is greater than theoretical size, that swelling watt just cannot swelling steel coil strip or has been tied with the inner tube of a tyre paper web of steel band.So in fact swelling watt can not swelling arrive full-size, should keep an angle that is less than 90 ° with axis, like this in order to bear the weight of steel coil strip and innermost layer steel band or paper web to be maintained to enough frictional force, support link and swelling connecting rod just produce an axial force to corresponding gusset, and be delivered on sliding bearing chamber 13 and turnbarrel 27, make the two have respectively the relative trend expanding outwardly, therefore in the supporting structure of turnbarrel 27 and in support and contracting mechanism, all should adopt thrust bearing for this trend, this thrust bearing can bear the axial force that this trend produces.Again because, when the thrust bearing in support and contracting mechanism also will bear pull bar and outwards moves, the second inner ring sleeve 22 imposes on its outside active force, therefore in support and contracting mechanism, the thrust axis in sliding bearing chamber 13 is promised and is adopted the two-direction thrust bearing that can bear bi-directional axial load, and the block bearing of turnbarrel 27 adopts single thrust bearing.
The present embodiment is not limited to said structure form to the force transferring structure of the installation form of above-mentioned two-direction thrust bearing 20 and pull bar 17, also can adopt other mounting structure and force transferring structure, refer to Fig. 7, the inner ring of two-direction thrust bearing is arranged on the first inner ring sleeve 21, the first inner ring sleeve 21 is sleeved on pull bar 17 in the mode that can axially outwards slide along pull bar 17, the first inner ring sleeve 21 in the outer outer ring of two-direction thrust bearing 20 with interior and be provided with for inwardly holding out against the shaft shoulder of two-direction thrust bearing inner ring, disk spring group 18 acts on elastic force on the outer face of the first inner ring sleeve 21 indirectly by dish spring support ring 19.Said structure, also can cancel dish spring support ring 19, and disk spring group 18 directly acts on elastic force on the outer face of the first inner ring sleeve 21.Pull bar 17 is provided with for outwards promoting second shaft shoulder 172 of two-direction thrust bearing 20, and this second shaft shoulder should be positioned at the inner side of the inner ring of two-direction thrust bearing 20.
Refer to Fig. 1, Fig. 8 and Fig. 9, the cylinder bar of start cylinder 33 is hinged with the side arm end of V-arrangement connecting plate 35 by connector 36, connector 36 is provided with the screwed hole 361 being connected with start cylinder bar along its length, broad ways is provided with two otic placodes that are parallel to each other 362, two otic placodes 362 are positioned at a side of screwed hole 361, on two otic placodes 362, be equipped with coaxial connecting through hole 363, this connecting through hole 363 is vertical with screwed hole 361, and vertical with otic placode 362.The head of start cylinder bar adopts this connector to be connected with V-arrangement connecting plate 35, but not commercially available common for connecting the Y-shaped connector of start cylinder club head and action component, can effectively reduce the length of start cylinder and the required annex of connecting plate, the final requisite space reducing in casing, for the length that the rotatable body of shortening both arms unreeling machine divides has been created advantage.Meanwhile, adopt the connector of this shape, can reduce the vertical range between the pin joint of start cylinder bar and connecting plate and the center line of revolving body, thereby reduced the bending moment of V-arrangement connecting plate 35 inside bottom, improved the bearing capacity of V-arrangement connecting plate 35.
Connection wye 34 is threaded in the inner end of pull bar 17, and connection wye 34 adopts the locking nut locking being connected on pull bar 17, installs stop washer (GB/T858-1988) between locking nut and Y-shaped connector additional, can limit connection wye with respect to the rotation of pull bar.In other words, owing to being that plane is hinged between connection wye and connecting plate, and connecting plate can not rotate, thus connection wye also can not rotate, so also just limited the rotation of pull bar.
Because exoskeletal accurate after-combustion steel coil strip is different from wide cut steel coil strip, it is even more that wide cut steel coil strip width can reach 1m left and right, and the width of wall scroll steel band and the Thickness Ratio of steel coil strip are larger, are not prone to the problem that steel band scatters to side.And for flux-cored wire steel coil strip, width of steel band is 10～20mm, in arbitrary section, one deck steel band generally has 20 above steel bands, and the probability that such steel coil strip generation is scattered to side is more much bigger than wide cut steel coil strip.So need to baffle plate be set in steel coil strip both sides, in case the steel band in steel coil strip scatters to side.
Refer to Fig. 1, in order to prevent the inside side of steel band in steel coil strip, scatter, on drive socket 28, be provided with Internal baffle assembly 2, drive socket 28 is packed in the outside of turnbarrel 27, Internal baffle assembly is packed in the outside of drive socket 28, drive socket 28 outer ends are provided with for locating the shaft shoulder of Internal baffle assembly inner side, and the outside of Internal baffle assembly is held out against by Internal baffle locating ring 29, Internal baffle locating ring 29 by screw fastening on drive socket 28.
Due to exoskeletal accurate after-combustion steel coil strip on being lifted into unreeling machine time, can not directly the side of steel coil strip be against on the rectangular steel tube of Internal baffle assembly, because along with the radial direction of swelling watt is outside, axial direction is to the movement of machine intimate, the movement locus of steel coil strip and the swelling of being propped up are watt the same, can there is in the axial direction one-component, if directly the side of steel coil strip is against on the rectangular steel tube of Internal baffle assembly, between steel coil strip and swelling watt, can there is relative motion, and the frictional force of relative motion is larger, the inner end edge of swelling watt is likely destroyed interior one deck or which floor steel band, cause whole steel coil strip to be subsided.So can not directly make of Internal baffle assembly the axial direction positioning device of steel belt for lifting volume.When steel belt for lifting is rolled up, steel coil strip need to be placed on to swelling watt upper, now just need in swelling watt, there is a positioner, to control steel coil strip in axial position.
Refer to Fig. 1, in the present embodiment, swelling watt inner reinforced plate 8 is provided with inner side positioner 37, and inner side positioner is arranged on swelling watt gusset near one end of casing.Inner side positioner comprises two connection boards that are arranged on swelling watt inner reinforced plate both sides, connection board is L shaped, horizontal bottom is as the connecting portion with swelling watt link of boards, vertical portion is as location division, the connecting portion of connection board is provided with horizontal slotted hole, in horizontal slotted hole, be provided with the dog screw of connection board, dog screw is fixed together connection board and a swelling watt gusset.By moving horizontally connection board, control the horizontal relative position of itself and dog screw, can adjust the relative position of inner side positioner and swelling watt, guarantee that steel coil strip is after completely by swelling, its inside edge can contact with the square tube of Internal baffle assembly, realizes the location of steel band.
Refer to Fig. 3, Fig. 4 and Fig. 5, locate in like manner with inner side, the arranged outside of unreeling machine has outside positioner, and outside positioner is demountable structure.Outside positioner comprises steel band outer baffle and outer baffle positioner; Steel band outer baffle comprises outer ring 381, inner ring 383 and is connected the spoke 382 of outer ring and inner ring, and above part forms by metal tube.Outer baffle positioner comprises two guide posts 392 and two abutment sleeves 385; Two abutment sleeve 385 disalignments, are all horizontally disposed with, and the length of one of them abutment sleeve is greater than another abutment sleeve, and two abutment sleeves 385 are respectively connected with the inner ring 383 of outer baffle by backstay 384; Two guide posts 392 are respectively fixed on the outer circumference surface of turnbarrel 27 by riser 391, and two guide posts 392 are installed on respectively in two abutment sleeves 385, and the end of guide post 392 is provided with screw thread, and a setscrew nut has been threaded on screw thread.By two point locations and a line, locate like this, can limit the axial location of outer baffle device, and can limit outer baffle swing.
Except taking above-mentioned setscrew nut the retention mechanism on its guider, also can adopt other fastening means as outer baffle, for example on abutment sleeve, be provided with an eccentric wheel hold-down mechanism, realize fastening function.Or the fastening abutment sleeve of jackscrew and outer baffle guide post are set on abutment sleeve.
The present embodiment, is fixed with brake disc 6 in the inner of drive socket 28, and brake disc, perpendicular to the axis of turnbarrel, is also provided with many disc brakes 5 on casing, and brake disc is between two braking planes of disc brake.Damping unit in the time of can selecting disc brake that air pressure is less normally to move as unreeling machine, makes to keep on discharged steel band a suitable tension force.Select one or more disc brakes that air pressure is larger as brake apparatus.
The brake disc of mentioning in the present embodiment, can also select cartridge type brake gear as damping and the brake apparatus of unreeling machine.
The operation principle of the present embodiment is:
One) before steel belt for lifting volume, start cylinder group is shunk, and start cylinder drives pull bar to stretch out by connecting plate, and the circlip for shaft on pull bar promotes the first inner ring sleeve and the second inner ring sleeve, the second inner ring sleeve promotes the inner ring of two-direction thrust bearing, and promotes bearing (ball) cover by two-direction thrust bearing.Because bearing (ball) cover and sliding bearing chamber are connected, sliding bearing chamber is also along with bearing (ball) cover outwards moves together, the outdoor gusset of sliding bearing being packed on sliding bearing chamber also outwards moves thereupon together, angle between swelling connecting rod and axis reduces, angle between support link and axis reduces simultaneously, the circular arc that the distance of take between support link and two pin joints of swelling connecting rod in swelling watt edge is radius outwards moves, and the external diameter of simultaneously swelling watt also dwindles thereupon.When the inner reinforced plate of swelling watt and the outer gusset of turnbarrel contact, the external diameter of swelling watt is retracted to minimum of a value, and now start cylinder still may not shrink and put in place.
Because the axial location of inner side positioner on swelling watt gusset can regulate, so before steel belt for lifting volume, need to adjust the position of determining inner side positioner.If directly steel coil strip is placed in swelling watt, the standard of neither one location, workman determines the position of steel coil strip entirely by rule of thumb, so very possible bigger than normal or less than normal, if steel coil strip is excessively near apart from outer end, will cause swelling watt after swelling, the inner side of steel coil strip still cannot touch in the square tube of Internal baffle, steel coil strip does not have location, side, and the steel band keeping to the side most still likely subsides.If inner side positioner is excessively far away apart from outer end, although can utilize the square tube of Internal baffle accurately locates the side of steel coil strip, but can increase the distance of the friction of steel coil strip and swelling watt support, for there is no the steel coil strip of paper web, this is by the steel strip surface of inner side in heavy wear steel coil strip, and the wire feed when producing follow-up drawing work or using to flux-cored wire brings difficulty; For the steel coil strip that has paper web as the inner tube of a tyre, although there is not the problem of wearing and tearing steel strip surface, also can strengthen the wearing and tearing to recycled paper web.And except wear problem, when steel coil strip and swelling watt relatively move, frictional force needs the active force of start cylinder to overcome, and certainly can increase the load of start cylinder, likely causes the increase of start cylinder size.Increased after the positioner of inner side, can be after once adjusting to the right place, it is carried out fastening, during each upper volume, just had one reproducible, the position reference of accurate positioning, without again adjusting, can avoid above-mentioned problem.
Two) steel coil strip is placed in after the upper and axial location of swelling watt, start cylinder stretches out, and the connector on start cylinder bar drives connecting plate, and then drives pull bar to retract, and the nut of tie rod end compresses disc spring sleeve, disc spring sleeve compression butterfly spring group.Because butterfly spring group is not little when decrement will be more than lifting steel coil strip in other words in compressive state when pull bar stretches out completely, so now start cylinder is only to compress butterfly spring group by pull bar, and do not cause other variations.Certainly, if in order to reduce space in casing and the start cylinder of selection of small stroke, can cause start cylinder to shrink swelling watt inner reinforced plate while putting in place is still suspended from the outer gusset of turnbarrel, both can not dock, if in this case material volume is placed in swelling watt, can move sliding bearing is outdoor by swelling connecting rod, by two-direction thrust bearing, the first inner ring sleeve, dish spring support ring, force transmission, on disk spring group, be compressed disk spring group.Certainly be likely also above the two combination, be the swelling watt inner reinforced plate segment distance that declines, by after one section of disk spring group compression, swelling watt inner reinforced plate falls to being placed on the outer gusset of turnbarrel, when then pull bar moves inward, then disk spring group is continued to one section of compression.
In butterfly spring group, suffered compression stress reaches in the time of steel coil strip need to being risen to required active force, sliding bearing chamber is (this power is delivered on sliding bearing chamber by dish spring support ring and two-direction thrust bearing) under the elastic force effect of butterfly spring, in turnbarrel, move, and then by swelling connecting rod and support link, swelling watt is propped up, now the center of gravity of steel coil strip is constantly rising.
Angle when swelling connecting rod and support link are greater than these two connecting rods and have just started lifting steel coil strip with respect to the angle of axis while putting in place due to swelling watt swelling, so stressed (butterfly spring stressed) during swelling on connecting rod is less than the power while just starting lifting steel coil strip, the length of butterfly spring is greater than its length when just starting lifting steel coil strip, in lifting the process of steel coil strip, butterfly spring is in fact constantly, to discharge its decrement.Now disk spring group still has certain compression surplus.So watt by steel coil strip after complete swelling, start cylinder still continues to release a segment distance in swelling, pull bar continues to shrink inwards, disc spring sleeve compression butterfly spring group.Until reach start cylinder stroke, the lock of locking start cylinder interior is locked start cylinder, prevents that start cylinder from losing thrust because of gas leakage, the accident that causes material volume to fly out.In the swelling watt length that after complete swelling, start cylinder bar continues to stretch out by steel coil strip, be butterfly spring by the length of another compression.When the parts such as start cylinder, connecting plate, connector, pull bar are installed more accurately, this length is needed just less, and the second-compressed amount of spring is also just less, and pressure during final unreeling machine operation in disk spring group is also just less.For above-mentioned reasons, in unwinding and rewinding machine when operation,, in other words, the axial force after steel coil strip swelling is less, and after machine run gets up, the two-direction thrust bearing in outside and the thrust bearing of inner side stressed also less, is conducive to improve the thrust bearing life-span.
The generation of second-compressed amount is not only in order to make up the error while installing, and has the effect that tension force is provided concurrently.Because if there is no second-compressed, elastic force on disk spring is only also to rest on due to material is rolled up in swelling process, overcoming swelling watt need to rise the center of gravity of material volume on needed gravity horizontal, if the active force of disk spring is also only in this level during the locking of start cylinder, that tension force to material volume will be the same (while not using disk spring group with not using disk spring group, the gravity that the tension force that can provide is only rolled up for material, due to swelling connecting rod, swelling watt, geometrical relationship between support link and pull bar, can not produce larger tension force, otherwise will cause structural damage) use so the advantage of disk spring group to give prominence to.And the generation of this second-compressed amount, over against the generation of having answered additional tension force, and this tension force can not disappear because of the gas leakage/leakage of start cylinder, and this additional tension force exactly, guarantee that swelling watt and material volume can have enough frictional force between inner side (or material roll up paper web), control raising speed/reduction of speed that honest material convolution turns etc., improved the safety and reliability of system.For example, the weight of material volume is 1000 kilograms, when swelling watt will be expected the complete swelling of volume, active force in disk spring group is 800 kgfs, due to the second-compressed of disk spring group, the active force in disk spring group has increased again by 160 kgfs, has increased again so the tension force of 200 kgfs between swelling watt and material volume inner side, the frictional force that this has just increased between swelling watt and material volume inner side, has improved the unwinding and rewinding machines control ability to material volume velocity variations.
Owing to adopting uncoiler or the winder of swelling watt distensible material volume inner core to be different from I-beam wheel unwinding and rewinding machine.The material volume of I-beam wheel unwinding and rewinding machine is placed in I-beam wheel (or being referred to as drum), and the rotary speed of I-beam wheel is to embed in the hole in I-beam wheel by the finger on unwinding and rewinding machine, stirs I-beam wheel and rotates to regulate its rotating speed.And the frictional force that the rotating speed that adopts the confidential adjusting material volume of material retractable of swelling watt can only be rolled up between inner core by swelling watt and material regulates its rotating speed, and frictional force is determined by tension force and coefficient of friction, and coefficient of friction be immobilize moving, so can only improve frictional force by increasing tension force, described in a upper paragragh, it is excessive that the tension force of the unwinding and rewinding machine of existing employing swelling watt form can not be done.And technical scheme in employing the present embodiment, raising tension force that can be larger, and then the unwinding and rewinding machine that improves employing swelling watt form is rolled up the control ability of velocity variations to material, the acceleration that in the time of can adapting to speed governing, needs are larger and/or material are rolled up the larger occasion of rotary inertia, have expanded the scope of application of such machine.
Three) after swelling has operated; outer baffle is contained in swelling watt; utilize two abutment sleeves and two guide posts to realize the location to outer baffle; wherein two abutment sleeves have completed point location jointly; longer abutment sleeve has also completed the location that prevents swing; then use nut check, can play the protective effect to the outer side edges of steel coil strip.
Complete behind the location, outside of steel coil strip, can start initiatively folding and unfolding band.
Disk spring group in the present embodiment also can be replaced by the elasticity of compression parts of other type, such as resilient sleeve etc.Nut 16 can be replaced by the limited block of pin joint.
Embodiment 2:
Most of identical with embodiment 1, just changed the connected mode of start cylinder and pull bar.In embodiment 1, by start cylinder, stretch the contraction that realizes pull bar, in the present embodiment, by start cylinder, shrink the contraction realize pull bar.
Refer to Figure 10, drive the start cylinder group of pull bar 17 to comprise two cylinder with locks, but different be that cylinder bar stretches out towards the outer end of pull bar 17, the end of each start cylinder cylinder bar is to be also connected with a side arm end of V-arrangement connecting plate 35 by a connector 36.Different: the connecting plate in the connecting plate Length Ratio embodiment 1 in the present embodiment is short, and opening direction is different from embodiment 1, the two side arms end of V-arrangement connecting plate 35 approaches the outer end of connected pull bar 17 compared with its bottom in the present embodiment, the inner bottom part of V-arrangement connecting plate is relative and hinged with the breeches joint on pull bar, be that in the space between breeches joint 34 on the pull bar two side arms in V-arrangement connecting plate, the distance between V-arrangement connecting plate 35 two side arms should be greater than the width of connection wye.
Referring to Figure 11, the start cylinder 33 cylinder bars that drive pull bar to move also stretch out towards the outer end of pull bar 17, but start cylinder 33 cylinder bars are different from the connected mode of pull bar 17 the inners.In Figure 11, for driving the cylinder bar of the start cylinder group of pull bar 17 to be provided with the connecting plate vertical with them 46, pull bar 17 is connected with U-shaped latch fitting 48 by branch sleeve 47 with the middle part of connecting plate 46.Branch sleeve 47 is arranged on the inner side of connecting plate 46, and the middle inside of branch sleeve 47 is provided with a gap; In the inner end cylindrical both sides of pull bar, be provided with two stopper slots with the parallel adaptation of above-mentioned gap, the lateral surface of stopper slot is inclined-plane; U-shaped latch fitting 48 is inserted in the stopper slot of pull bar 17, inside and outside both sides are clamped by the madial wall of gap bottom surface and stopper slot, the side arm of U-shaped latch fitting 48 clamps between at the bottom of gap wall and stopper slot, the side arm of U-shaped latch fitting 48 is provided with the inclined-plane with the inclined-plane adaptation of stopper slot, the angle on this inclined-plane should be within the scope of friction self-locking, can guarantee that U-shaped latch fitting can not deviate from.U-shaped latch fitting 48 is inserted into the structure in gap inside branch sleeve can also prevent that pull bar from rotating.
The 3rd start cylinder cylinder bar that the present embodiment provides and the syndeton of pull bar, refer to Figure 12, the start cylinder 33 cylinder bars that drive pull bar to move stretch out towards the outer end of pull bar 17, for driving the cylinder bar of the start cylinder group of pull bar 17 to be provided with the connecting plate vertical with them 46, the outer middle side part of connecting plate 46 is provided with contiguous block 49, and contiguous block 49 is provided with T-shaped groove; The inner end of pull bar is provided with the protuberance that radius is greater than its adjacent part, and protuberance is contained in T-shaped groove.The direction of T-shaped groove is 45 ° with the direction of the paired start cylinder cylinder bar line of centres.
Embodiment 3:
Refer to Figure 13, be with the difference of embodiment 1, by floor installation, on reciprocating platform 62, the reciprocating motion of platform 62 can be by motor driven ball screws winding machine, also can be by motor-driven gear scrolling realization on tooth bar.In wrapup procedure, turnbarrel is when rotating, and base is also driven by ball screw framework or pinion and rack, moves back and forth, and realizes winding displacement.In general, while unreeling, base need not move back and forth, if but during actual use, the distance between machine and main frame is less, when the band with one fixed width should not swing, and also can be by floor installation on reciprocating mechanism.
Embodiment 4:
Be the positioner of outer baffle with the difference of embodiment 1.Refer to Figure 14～Figure 15, in the present embodiment, the positioner of outer baffle comprises and is sleeved on the outer locking of swelling watt watts 53, in locking watts 53, be connected with the holding screw and the backstay 54 that are pressed in swelling watt, backstay slides and is installed in spoke 56 through outer baffle inner ring 55, on spoke, be radially provided with slotted hole 561, in slotted hole, be provided with the lock-screw affixed with backstay.Locking watt compresses swelling watt by the holding screw on it and realizes locking, and backstay compresses spoke by the lock-screw on it and realizes location.
Above-mentioned outer baffle positioner, can avoid the large problem of embodiment 1 outer baffle positioner difficulty of processing.Because, in embodiment 1, outer baffle and turnbarrel are except the nested relationship of abutment sleeve and guide post, two incoherent parts completely, and overcoat has the outer baffle guide post of abutment sleeve still by riser, to be welded on turnbarrel, through this hot-working of welding, total just more likely produces new error because expand with heat and contract with cold, reduce the quality of fit of abutment sleeve and outer baffle guide post, increasing fit clearance needs to guarantee to install, thus, improved the unstability of outer baffle location; Raising machining accuracy, increases processing cost.The two scheme has certain drawback.
Outer baffle positioner in embodiment 1, because the end at riser is provided with outer baffle guide post, once guide post is stressed, for riser, it is a cantilever beam structure of only having fixed at afterbody, and outer baffle guide post itself is also a cantilever beam structure of only having fixed at afterbody, this structure is very unfavorable for carrying.In order to reduce the negative effect of riser cantilever beam structure, can reduce the height of riser, if but reduce height, just need to increase the length of backstay in outer baffle positioner, and backstay itself is also a cantilever beam structure, if increase the length of backstay, certainly will reduce its rigidity and bearing capacity again.And outer baffle is after material volume is put on unreeling machine, be manually installed on unreeling machine, in order to reduce workman's work load, what need again as much as possible outer baffle to be done is lighter, so its material is also selected the material that density is less, intensity is poor or wall thickness is thinner, so that its rigidity is not easy to do is again too much.The two has just formed contradiction.
The present embodiment, the positioner of outer baffle is changed into the locking watt being directly sleeved in swelling watt, locking watt shape and size mate with swelling watt, no matter how a swelling watt formed circular outer diameter size changes, the shape of swelling watt itself is fixed, so locking watt can realize stable coordinating with swelling watt.And the variation of swelling watt external diameter is to make up by adjusting the position of backstay in spoke during swelling.The present embodiment by holding screw compress swelling watt realize locking watt location, simple in structure, easy to operate.
In the present embodiment, steel band outer baffle adopts plectane to add the structure that spoke adds inner ring, and the effect of spoke is equivalent to gusset.Steel band outer baffle also can adopt the structure of the outer ring+spoke+inner ring in embodiment 1.
Embodiment 5:
Refer to Figure 16, and the difference of embodiment 1 is: between dish spring support ring 19 and first shaft shoulder of pull bar, clamp and adjust packing ring 60, adjust packing ring 60 and be sleeved on pull bar 17.Dish spring support ring 19 does not directly contact with first shaft shoulder 171 of pull bar, but contact with the adjustment packing ring 60 for adjusted size, the internal diameter of adjusting packing ring 60 is identical with the external diameter of pull bar 17, the external diameter of adjusting packing ring 60 is identical with the internal diameter of the first inner ring sleeve 21, and can endwisely slip between the first inner ring sleeve 21.
In process of production, the internal diameter of steel band material volume can not be completely unified, and the present invention depends on and pulls the locking start cylinder of pull bar to move completely to put in place, utilizes lock in start cylinder to guarantee not occur the material volume accident that flies out.But the position that material volume internal diameter and pull bar pull is to have certain relation of interdependence, if the internal diameter of material volume is larger than theoretical value, after causing driving the start cylinder cylinder bar of pull bar to put in place, still cannot increase to position, even again discharge decrement by butterfly spring, also cannot guarantee, so just need to adjust the relative position of dish spring support ring and pull bar.For example, the position of dish spring support ring is outwards moved, need increase to adjust thickness or the quantity of packing ring, make start cylinder when moving to terminal, the external diameter of swelling watt is less than original steel coil strip internal diameter; Vice versa.Adjust packing ring and can have various ways: 1) for certain material volume internal diameter size, calculate the every increase certain size of internal diameter (for example 1mm or 0.5mm), the thickness of needed adjustment packing ring, each adjusts the internal diameter of corresponding a kind of material volume of thickness of packing ring, when the internal diameter of steel coil strip changes to some extent, increase or reduce corresponding adjustment packing ring number; 2) size of required adjusted size packing ring while calculating respectively discharging volume internal diameter and be different size, makes respectively the adjustment packing ring of coil diameter in corresponding each steel band, when the internal diameter of steel coil strip changes to some extent, and integral replacing adjusted size packing ring.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above, but the present invention is not limited to the above-mentioned specific embodiment, the above-mentioned specific embodiment is only schematic, be not restrictive, those of ordinary skill in the art is under enlightenment of the present invention, do not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, 1. with hinged-support, replace the swelling watt inner reinforced plate described in the present invention and the outer gusset of turnbarrel, be arranged on respectively the inner side of swelling watt and the outside of turnbarrel, and hinged with support link, play the effect of supporting swelling watt, 2. will change 3 or more number into for strutting the cylinder number of each side swelling watt, the cylinder that supports both direction is still crisscross arranged, 3. parts or the component combination in above embodiment with identical function are replaced mutually, formed the technical scheme that there is no Direct function description in above each embodiment, within these all belong to protection scope of the present invention.
Claims (8)
1. a single armed initiative rolling-unrolling machine, comprise base and be arranged on the casing on described base, described casing one side is provided with a bearing sleeve, in described bearing sleeve, be coated with pull bar, described bearing sleeve external support has turnbarrel, on described turnbarrel, be connected with actuating unit and be arranged with some swellings watt outward, between described swelling watt and described turnbarrel, be provided with support link; The inner of described pull bar is connected with driving mechanism by connecting plate, and the outer end of described pull bar is connected with support and contracting mechanism,
It is characterized in that,
Described driving mechanism is locking hydraulic cylinder or locking cylinder;
Described support and contracting mechanism comprises sliding bearing chamber;
The outside of described sliding bearing chamber is connected with described swelling watt by swelling connecting rod;
Indoor two-direction thrust bearing, the first Compress Spring and the limiting component being sleeved on described pull bar that be provided with successively from the inner to outer end of described sliding bearing, described pull bar is provided with first shaft shoulder, described the first Compress Spring is installed between first shaft shoulder of described limiting component and described pull bar, and described pull bar is provided with for outwards promoting the force application structure of described two-direction thrust bearing;
The inner ring of described two-direction thrust bearing is arranged on the first inner ring sleeve,
Described the first inner ring sleeve is can the mode along pull rod shaft to outside slip being sleeved on described pull bar, described the first inner ring sleeve is in the outer outer ring of described two-direction thrust bearing with interior and be provided with for inwardly holding out against second shaft shoulder of two-direction thrust bearing inner ring, and described the first Compress Spring acts on elastic force on the outer face of described the first inner ring sleeve directly or indirectly.
2. single armed initiative rolling-unrolling machine according to claim 1, is characterized in that, between the inner side of described the first Compress Spring and first shaft shoulder of described pull bar, has clamped adjustment packing ring, and described adjusting pad snare is contained on described pull bar.
3. single armed initiative rolling-unrolling machine according to claim 1, it is characterized in that, described the first Compress Spring is dish spring group, and described dish spring is assembled in disc spring sleeve, described disc spring sleeve is sleeved on described pull bar, between described two-direction thrust bearing and described limiting component.
4. single armed initiative rolling-unrolling machine according to claim 1, it is characterized in that, described connecting plate is V-arrangement connecting plate, the center line of described V-arrangement connecting plate is horizontally disposed, and two side arms end is respectively connected with the described driving mechanism of respective side by a joint, and the bottom of described V-arrangement connecting plate is connected with the inner of pull bar described in respective side.
5. single armed initiative rolling-unrolling machine according to claim 1, it is characterized in that, described swelling watt is provided with inner side positioner, described inner side positioner comprises the L shaped connection board that is provided with vertical location division and level connection joint portion, described vertical position point is in the inner side of described level connection joint portion, and described level connection joint portion is provided with horizontal slotted hole; Described swelling watt is provided with inner reinforced plate along its length; Described L shaped connection board is affixed by described horizontal slotted hole and described swelling watt inner reinforced plate on it.
6. single armed initiative rolling-unrolling machine according to claim 1, is characterized in that, this unwinding and rewinding machine also comprises outside positioner; Described outside positioner comprises outer baffle and outer baffle positioner; Described outer baffle positioner comprises that one is long and the other is short two horizontal location sleeves of out-of-alignment and with the guide post of their adaptations, described guide post is fixed on the outer circumference surface of described turnbarrel by riser; Described abutment sleeve is fixed on by backstay on the inner peripheral surface of described outer baffle, and described abutment sleeve is sleeved on described guide post, and described guide post is provided with the retention mechanism of described positioning sleeve.
7. single armed initiative rolling-unrolling machine according to claim 4, it is characterized in that, described joint comprises along its length two otic placodes that are parallel to each other that arrange in screwed hole arranging and broad ways, two described otic placodes are positioned at a side of described screwed hole and are provided with coaxial connecting through hole, and described connecting through hole is vertical with described screwed hole and vertical with described otic placode.
8. according to the single armed initiative rolling-unrolling machine described in claim 4 or 7, it is characterized in that, the two side arms end of described V-arrangement connecting plate is the outer end away from connected described pull bar compared with its bottom.
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| CN104210870A (en) * | 2012-05-02 | 2014-12-17 | 天津三英焊业股份有限公司 | Active winding and unwinding machine |
| CN102642732A (en) * | 2012-05-02 | 2012-08-22 | 天津三英焊业股份有限公司 | Active reeling and unreeling machine |
| CN102992120A (en) * | 2012-11-26 | 2013-03-27 | 吴江市金真缝纫机有限公司 | Adjustable tensioning device for textile |
| CN103017881A (en) * | 2012-12-11 | 2013-04-03 | 济南金钟电子衡器股份有限公司 | Device for improving pre-arch force of truck scale with U-shaped beam |
| CN103449217A (en) * | 2013-08-30 | 2013-12-18 | 湖北中烟工业有限责任公司 | Device for assembling and disassembling tipping paper disc |
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| CN201694674U (en) * | 2010-08-03 | 2011-01-05 | 浙江精功科技股份有限公司 | Full-automatic uncoiler |
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| JPH0557342A (en) * | 1991-09-05 | 1993-03-09 | Nkk Corp | Winder for steel band |
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| SU1646640A1 (en) * | 1989-07-11 | 1991-05-07 | Научно-производственное объединение "Атомкотломаш" | Strip coiler |
| CN2846371Y (en) * | 2005-11-08 | 2006-12-13 | 石从兵 | Expansion and contraction coil device |
| CN101007323A (en) * | 2006-01-27 | 2007-08-01 | 吉素琴 | Oblique wedge type barrel arbor decoiler on flying shear line |
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