CN202181126U - Double-head passive unreeling machine - Google Patents

Abstract

The utility model discloses a double-head passive unreeling machine, which comprises a base and a tank body installed on the base. A fixed bearing shaft is arranged in the tank body, two ends of the fixed bearing shaft respectively bear one rotary sleeve, a plurality of tension tiles are positioned on the periphery of the rotary sleeve, and supporting connection rods are arranged between the tension tiles and the rotary sleeve. A manual supporting contracting mechanism is arranged on the outer side of the rotary sleeve to adjust the diameter of an arc formed by the tension tiles. Thus, supporting tightness of the tension tiles to material coils is changed to adapt to material coils of different inner diameter. The double-head passive unreeling machine is operated manually and is simple in structure and convenient to operate.

Description

The passive unreeling machine of double end

Technical field

The utility model belongs to the uncoiling field of sheet metal strip, belongs to big group of the B21C47 of IPC classification number, also can be used for weaving, the uncoiling field of industry such as printing and dyeing, papermaking, plastics, particularly relates to the passive unreeling machine of a kind of double end.

Background technology

At present, along with the fast development of flux-cored wire industry, flux-cored wire manufacturer more and more payes attention to reducing the non-cutting time of equipment operation, to enhance productivity.Wherein reducing each required time of replacing steel coil strip is one of them important means with changing frequency.Use exoskeletal accurate after-combustion steel coil strip to unreel so emerged in recent years, this steel coil strip can directly utilize steel band itself to form steel coil strip, and after steel band all discharged, what was not remaining on the unreeling machine, can directly put new steel coil strip again.Also can adopt the inner tube of a tyre of paper web as steel coil strip, steel band back and forth is wrapped on the paper web, forms steel coil strip, and after steel band all discharged, from unreeling machine collection last time tube, paper web can also be used for twining again new steel band.Make and carry out unwinding and rewinding in this way and not only reduced the workman and push to, push the time and the labour intensity of I-beam wheel, and when 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 the band machine and are had plenty of the repeated combination of existing single head being put the band machine, and for example CN201105294Y " two reel decoiling unit " discloses the two reel decoiling units in a kind of cold-strip steel uncoiling field, and it contains two cover running parts; Two cover reel parts; One cover telescopic section is divided into rotating part, and the mandrel in the main shaft of left and right reel links to each other respectively with the cylinder bar of telescopic oil cylinder through a pair of thrust baring; The running part of left and right reel and telescopic oil cylinder are fixed on the gyro-rotor simultaneously; The dead in line of the mandrel of telescopic oil cylinder and left and right reel is fixed on the top of gyro-rotor, and the casing of two cover reels is separately fixed at the both sides of gyro-rotor.Its two cover reels, intermittent use, when a reel normal operation, another reel can be gone up volume simultaneously, has omitted service working time, thereby has improved production efficiency, has not only reduced the floor area of manufacturing line, and has practiced thrift equipment investment.

The design of this decoiling unit is straight and narrow, and device such as brake gear, driving device is available in all varieties, but wherein the main shaft of reel leans on bearing fixing on casing.This equipment is with (though the not directly explanation in the literary composition of two self-aligning roller bearings; But the technical personnel in this area can be from Figure of description unquestionable definite bearing type) be installed on two risers of casing; And main shaft and reel (promptly bearing the steel coil strip weight of portions) lean out casing; Formed cantilever beam structure, the cantilever beam structure of this and single armed decoiling unit is actually duplicate.The designer comes down to common single armed decoiling unit dos-is overlaped.Caused in other words conj.or perhaps apart from the bearing part nearer shaft strength nearer very big like this apart from reel.For addressing this problem, or use the strongly-typed bearing of load-carrying capacity instead, or use larger sized bearing instead, the two all can increase the manufacturing cost of equipment; Be cost just to sacrifice bearing life.

But and adopt this structure will cause the length of gyro-rotor of both arms unreeling machine bigger, but should two cover running parts have been comprised by gyro-rotor, two cover reel parts, a cover telescopic section.On the one hand, but greatly increased the weight of the weight of gyro-rotor, just can find out from two huge gussets (limit switch of each side promptly is installed on the gusset), if not so big casing, so heavy casing need not so big gusset so and supports.Thereby make that utilizing manpower to turn round becomes impossible, so but just must cause it to need above-mentioned these gyro-rotors of motor-driven to turn round, and then the another step has caused the complicacy of equipment.On the other hand; This structure makes that reel is that the main bearing part and the distance of center of gyration have increased greatly; Part that will be heavier shifts out the scope that base contacts with ground outward, if the steel coil strip of having only a side on unreeling machine, and the steel coil strip of opposite side has used up; The equipment center of gravity that has comprised steel coil strip so will deflect away from the support scope of base, so will improve the risk that equipment topples greatly like this.

In addition; This unreeling machine adopts wedge expanding-contracting type mechanism tensioner steel coil strip: wedge expanding-contracting type mechanism comprises a three-jaw inclined wedge-shaped structure; Oblique bloated piece is connected with the dovetail shaped drift slot with interior wedge; In moving wedge can promote that oblique bloated piece opens or oppositely move in wedge make oblique bloated piece withdrawal, and can realize self-locking through the wedge angle, the interior tensioner mode of this structure generally is applied on the decoiling unit of large-scale heavy duty.This decoiling unit all is to adopt cantilever structure, and in order to guarantee to bear heavier coil of strip, what be used for that the main shaft of load-bearing will do is thick; In addition, process oblique bloated piece and interior wedge and bother very much, and slide by the inclined-plane and to realize the harmomegathus of three-jaw; Wearing and tearing are big, need carry out specific surface treatment to friction face, cause the decoiling unit of this large-scale heavy duty to cost an arm and a leg; Bulky, this shows, for the lighter situation of coil of strip; Adopt the decoiling unit of this tensioner mode extremely uneconomical, be unfavorable for promoteing the wider application.The tensioner mode often also needs the interpolation lubricating oil to safeguard in this, otherwise very easily wears away the inclined working of oblique bloated piece and interior wedge, causes shorten service life.

The utility model content

The utility model provides a kind of double end passive unreeling machine for solving the technical matters that exists in the known technology, and this unreeling machine is simple in structure, and is easy to adjust to material volume stretching degree.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: the passive unreeling machine of a kind of double end; Comprise base and be installed in the casing on the said base; Be provided with fixed-bearing axis in the said casing; A turnbarrel is respectively supported at the two ends of said fixed-bearing axis, and the periphery of said turnbarrel is provided with some tensioners watt, between said tensioner watt and said turnbarrel, is provided with support link; The outside of said turnbarrel is provided with manual support and contracting mechanism.

Said support and contracting mechanism is drawn together horizontal pull bar and suit supporting sleeve above that, and said supporting sleeve and the circumferential turning cylinder of said pull bar be to captiveing joint,

The outside of said supporting sleeve watt is connected through tensioner connecting rod and said tensioner;

Said turnbarrel outer end is connected with nut;

The outer end of said pull bar is provided with the shank that is positioned at the said supporting sleeve outside, and the inner is provided with and is positioned at the inboard turn-screw section of said supporting sleeve, and said pull bar turn-screw section is connected in the said nut through motion thread.

Said tensioner watt is provided with inboard registration device, and said inboard registration device comprises the L shaped connection board that is provided with vertical location division and horizontal connecting portion, and said vertical position point is in the inboard of said horizontal connecting portion, and said horizontal connecting portion is provided with horizontal slotted hole; Said tensioner watt is provided with inner reinforced plate along its length; Said L shaped connection board is affixed through said horizontal slotted hole and said tensioner watt inner reinforced plate on it.

This unreeling machine comprises outside registration device; Said outside registration device comprises outer baffle and outer baffle registration device.

Said casing is rotatably connected on the said support; Said casing is provided with latching device; Said latching device comprises the upper limit cover and the lower limit cover of and coaxial setting affixed with said support; Be coated with limit shaft in said upper limit cover and the said lower limit cover, on the said limit shaft stretcher be installed, said stretcher is between said upper limit cover and said lower limit cover; Between said stretcher and said lower limit cover, be clamped with compression spring; Said compression spring is sleeved on the said limit shaft, and the sidewall of said upper limit cover and/or said lower limit cover is provided with the zigzag groove, is provided with the locating dowel pin affixed with said limit shaft in the said zigzag groove; The base plate of said casing is provided with the spacing hole adaptive with said limit shaft.

Said outer baffle registration device comprises that one is long and the other is short two horizontal location sleeves of out-of-alignment and with they adaptive pilot bars, said pilot bar is fixed on the outer circumference surface of said turnbarrel through riser; Said abutment sleeve is fixed on through radius stay on the inner peripheral surface of said outer baffle, and said abutment sleeve is sleeved on the said pilot bar, and said pilot bar is provided with the fastening device of said locating bush.

Said outer baffle comprises inner ring and the spoke affixed with it;

Said outside registration device comprises and is sleeved on the outer locking of tensioner watt watt; Be connected with the holding screw and the radius stay that are pressed on the said tensioner watt in the said locking watt; Said radius stay passes said outer baffle inner ring slip and is installed in the said Internal baffle spoke; Radially be provided with slotted hole on the said Internal baffle spoke, be provided with the lock screw affixed in the said slotted hole with said radius stay.

Be connected with the rotary damping brake gear on the said turnbarrel.

Advantage and the good effect that the utlity model has are: through at the manual support and contracting mechanism of the arranged outside of turnbarrel, regulate the tensioner watt arc diameter that surrounds size, thereby change the tensioner watt stretching degree to the material volume, to adapt to the material volume of various different inner diameters; Only need M/C, simple in structure, easy to operate.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the left view after the utility model embodiment 1 installs outer baffle;

Fig. 4 a is the structural representation of the utility model embodiment 1 outer baffle;

Fig. 4 b is that the side of Fig. 4 a is cutd open structural representation;

Fig. 5 is the structural representation of the utility model embodiment 2 outer baffles;

Fig. 6 is the sectional view of Fig. 5.

The specific embodiment

For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:

Embodiment 1:

See also Fig. 1; The passive unreeling machine of a kind of double end; Comprise base 1 and the casing that is rotationally connected with base 1, casing comprise base plate 4 with affixed above that about 32, two risers 32 of two risers be provided with fixed-bearing axis 26; The two ends cantilever of fixed-bearing axis 26 forms symmetrical configuration and rotary double end cantilever design through this structure.

A turnbarrel 27 is respectively supported at the two ends of fixed-bearing axis 26, and the outside of turnbarrel 27 is provided with support and contracting mechanism.

The periphery of turnbarrel 27 is provided with some tensioners watts 7, between every tensioner watts 7 and turnbarrel 27, is equipped with two parallel isometric support link 9.In the present embodiment, tensioner watts 7 is provided with inner reinforced plate 8, and turnbarrel 27 is provided with outer gusset, and an end of tensioner 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 tensioner watt can only carry out parallel moving, and any rotation or swing do not take place.

Above-mentioned support and contracting mechanism comprises horizontal pull bar 17 and supporting sleeve 13; Supporting sleeve 13 is sleeved on the pull bar 17 with the mode of circumferential rotation axial restraint; Supporting sleeve 13 is provided with outer gusset; Between supporting sleeve 13 and every tensioner watt inner reinforced plate 8, be equipped with tensioner connecting rod 10, an end and the tensioner watt inner reinforced plate 8 of tensioner connecting rod 10 are hinged, and the other end is hinged on the outer gusset 12 of supporting sleeve.Tensioner connecting rod 10 and the support link 9 that links to each other with same tensioner watt inner reinforced plate is positioned at same plane and is splayed arranges.The outside watt be connected through tensioner connecting rod and said tensioner.

The outer end of fixed-bearing axis 26 is provided with the nut 22 affixed with turnbarrel 27.

The outer end of pull bar 17 is provided with the shank that is positioned at supporting sleeve 13 outsides, and the inner is provided with the turn-screw section, and the turn-screw section is connected in the nut 22 through motion thread.

The utility model is than the creativeness of the disclosed double end decoiling equipment of patent documentation CN201525655U; The supporting base of double end decoiling equipment (supporting sleeve that is equivalent to the utility model) is the outside at turnbarrel; The internal diameter of hold-down nut is bigger like this, supposes that the workman is identical with the arm of force of manual manipulation crank, and the slope of screw thread is identical; So in fact, it is less to be used to promote the strength that supporting base advances, and the quality of the material volume that can prop up is also less.In other words, the application force of propping up big quality material volume is bigger, even has surpassed human normal strength level, has limited the application of this machine.

And the motion thread of the utility model is arranged in the nut 22; The screw internal diameter is less, and the workman uses the shank of identical moment of torsion rotation pull bar like this, and the power that acts on the pull bar is bigger; The power that the drive supporting sleeve advances is also bigger, and the quality of the material volume that can prop up is bigger.In other words, prop up the material volume of same quality, required application force is less.

See also Fig. 1; In order to prevent that the inside side of steel band in the steel coil strip from scattering, on drive socket 28, be provided with Internal baffle assembly 2, drive socket 28 is packed in the outside of turnbarrel 13; The Internal baffle assembly is packed in the outside of drive socket 28; Drive socket 28 outer ends are provided with and are used to locate the inboard shaft shoulder of Internal baffle assembly, and the outside of Internal baffle assembly is held out against by Internal baffle steady ring 29, and Internal baffle steady ring 29 is fastened on the drive socket 28 through screw.

Because exoskeletal accurate after-combustion steel coil strip is on lifting unreeling machine the time; Can not be 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 tensioner watt outwards, axial direction moves to machine intimate, the path of motion of steel coil strip and the tensioner that it is propped up are watt the same; One-component can be arranged in the axial direction; If directly the side with steel coil strip is against on the rectangular steel tube of Internal baffle assembly, can the generation relative motion between steel coil strip and the tensioner watt, and also the friction force of relative motion is bigger; One deck or which floor steel band in the inner end edge of tensioner watt might be destroyed cause whole steel coil strip to be subsided.So can not directly make the axial direction positioning device of lifting steel coil strip of the Internal baffle assembly.In lifting during steel coil strip, need steel coil strip be placed on the tensioner watt, just need have a location device this moment on tensioner watt, to control steel coil strip in axial position.

See also Fig. 1, in the present embodiment, tensioner watt inner reinforced plate 8 is provided with inboard registration device 37, and inboard registration device is installed in the end of tensioner watt gusset near casing.Inboard registration device comprises two connection boards that are installed in tensioner watt gusset both sides; Connection board is L shaped; Horizontal bottom conduct and tensioner watt gusset bonded assembly connecting portion, vertically portion is as the location division, and the connecting portion of connection board is provided with horizontal slotted hole; Be provided with the fixing screw of connection board in the horizontal slotted hole, fixing screw is fixed together a connection board and a tensioner watt gusset.Horizontal relative position through parallel motion connection board control itself and fixing screw; Can adjust the relative position of inboard registration device and tensioner watt; Guarantee steel coil strip after fully by tensioner, its inside edge can contact with the square tube of Internal baffle assembly, the location of realization steel band.

See also Fig. 3, Fig. 4 a and Fig. 4 b, locate in like manner with the inboard, the arranged outside of unreeling machine has outside registration device, and outside registration device is a demountable structure.Outside registration device comprises steel band outer baffle and outer baffle registration device; The steel band outer baffle comprises outer ring 381, inner ring 383 and the spoke that is connected outer ring and inner ring 382, constitutes by metal tube with top.The outer baffle registration device comprises two pilot bars 392 and two abutment sleeves 385; Two abutment sleeve 385 disalignments, the average level setting, the length of one of them abutment sleeve is greater than another abutment sleeve, and two abutment sleeves 385 respectively are connected with the inner ring 383 of outer baffle through radius stay 384; Two pilot bars 392 respectively are fixed on the outer circumference surface of turnbarrel 27 through riser 391, and two pilot bars 392 are installed on respectively in two abutment sleeves 385, and the end of pilot bar 392 is provided with screw thread, and a setscrew nut has been threaded on the screw thread.Through two point locations and a line location, can limit the axial location of outer baffle device, and can limit the outer baffle swing like this.

Except taking above-mentioned setscrew nut as the fastening device of outer baffle on its guide piece, also can adopt other fastening means, for example on abutment sleeve, be provided with an eccentric wheel hold-down mechanism, realize fastening function.Or fastening abutment sleeve of jackscrew and outer baffle pilot bar are set on abutment sleeve.

Present embodiment is provided with casing rotary locking device on support, see also Fig. 2; Casing rotary locking device comprises the upper limit cover 45 and lower limit cover 40 that is fixed on the support; Upper limit cover 45 includes a position-limiting drum and an installation otic placode that is connected with position-limiting drum with lower limit cover 40, and upper limit cover 45 is coaxial with the position-limiting drum of lower limit cover 40, is coated with a limit shaft 42 in the position-limiting drum of upper limit cover 45 and lower limit cover 40; The upper end of limit shaft 42 is through in the spacing hole of box bottom; Also be coated with spiral compression spring 41 on the limit shaft 42, spiral compression spring 41 is positioned on the lower limit cover 40 and is close to lower limit cover 40, also is provided with stretcher 43 on the limit shaft 42; Stretcher 43 links together through bearing pin and limit shaft 42; Stretcher 43 comprises a tubular construction with limit shaft 42 free-running fits, and tubular construction links to each other with a riser, and the outer end of riser is provided with the foot-operated flat board of confession of a level.Wherein the position-limiting drum of upper limit cover 45 and/or lower limit cover 40 is provided with the groove of a zigzag; This groove is in the outside of position-limiting drum; And the depth direction of groove is perpendicular to the axis of limit shaft 42, and the horizontal level of zigzag is provided with the locating dowel pin 44 that is packed on the limit shaft 42 in the zigzag groove.

Present embodiment is fixed with brake disc 6 in the inner of drive socket 28, and brake disc also is provided with many disc brake drgs 5 perpendicular to the axis of turnbarrel on the casing, and brake disc is between two braking planes of disc brake drg.Damping arrangement in the time of can selecting for use the less disc brake drg of air pressure normally to move as unreeling machine keeps a suitable tension force on the feasible steel band that is discharged.Select for use the bigger one or more disc brake drgs of air pressure as brake equipment.

The brake disc of in present embodiment, being mentioned, can also select damping and the brake equipment of cartridge type brake gear for use as unreeling machine.

In the present embodiment, the connection structure of casing and base, similar with disclosed connection structure among the patent documentation CN201525655U, the utility model repeats no more at this.

The principle of work of present embodiment is:

One) when the workman need put a steel coil strip on the double end unreeling machine; Before the lifting steel coil strip, should guarantee that damping arrangement or brake gear clamp brake disc (otherwise turnbarrel will rotate with pull bar), manually rotate pull bar; The worm drive that pull bar leading screw section and nut form; The supporting sleeve that is axially fixed on the pull bar is moved outward, and the angle between tensioner connecting rod and the axis reduces, and the angle between support link and the axis reduces simultaneously; Tensioner watt edge is that the circular arc of radius outwards moves with the distance between two hinge-points of support link and tensioner connecting rod, and the external diameter of tensioner watt also dwindles thereupon simultaneously.

Because the axial location of inboard registration device on tensioner watt gusset can be regulated, so before the lifting steel coil strip, need adjustment to confirm the position of inboard registration device.If directly steel coil strip is placed on the tensioner watt, the standard of neither one location, the workman confirms 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 near excessively apart from the outer end, will cause tensioner watt after tensioner, the inboard of steel coil strip still can't touch on the square tube of Internal baffle; Steel coil strip does not have the location, side, and the steel band that keeps to the side most still might subside.If inboard registration device is far away excessively apart from the outer end; Though can utilize the square tube of Internal baffle accurately locatees the side of steel coil strip; But can increase the distance of the friction of steel coil strip and tensioner watt support; For the steel coil strip that does not have paper web, this is with steel strip surface the most inboard in the severe wear steel coil strip, and the wire feed when administration core welding wire is produced follow-up drawing work or use brings difficulty; For the steel coil strip that has paper web as the inner tube of a tyre,, also can strengthen wearing and tearing to recycled paper web though there is not the problem of the steel strip surface of wearing and tearing.And except wear problem, when steel coil strip and tensioner watt relatively moved, the application force that friction force need rotate pull bar overcame, and undoubtedly can increase working strength of workers, might cause manually rotating the pull bar difficulty.After having increased inboard registration device, can be after once adjusting to the right place, it is carried out fastening, each just all had a good reproducibility when going up volume, and the position reference of accurate positioning need not to adjust once more, can avoid above-mentioned problem.

Two) steel coil strip is placed in that tensioner watt goes up and axial location after; Manual contrarotation pull bar; The worm drive that pull bar leading screw section and nut form move inward the supporting sleeve that is axially fixed on the pull bar, and supporting sleeve drives tensioner through the tensioner connecting rod and watt outwards opens.

Three) after the tensioner operation is accomplished; Outer baffle is contained on the tensioner watt; Utilize two abutment sleeves and two pilot bars to realize the location to outer baffle, wherein two abutment sleeves have been accomplished point location jointly, and long abutment sleeve has also been accomplished and prevented the location of swinging; Use nut locking then, can play protective effect the outer side edges of steel coil strip.

After accomplishing the location, the outside of steel coil strip, can begin the passive band of putting.

Four) when the steel coil strip of a side has been put; Step on stretcher, make its rotation, make limit shaft shifted laterally in the zigzag groove of upper limit cover; And then step on stretcher downwards; Stretcher overcomes the elastic force of spiral compression spring, drives limit shaft and in upper limit cover and lower limit cover, moves down, and withdraws from the spacing hole of the upper end of limit shaft from box bottom.And then stepping on stretcher and make it continue rotation; Make locating dowel pin shifted laterally in the zigzag groove of upper limit cover; Move to the right-hand part of the following horizontal stroke of zigzag, the top of locating dowel pin is stopped, so just can guarantee that locating dowel pin can upwards not skid off because of the elastic force of compression spring; Cause limit shaft upwards to stretch out, disturb the rotation of casing.Casing can be rotated then.After the casing rotation puts in place; Again according to opposite sequence control motion of foot, can make locating dowel pin come back to horizontal left side, zigzag top one, simultaneously; Drive limit shaft and in upper limit cover and lower limit cover, move up, the upper end of limit shaft is stretched in the spacing hole on the box bottom.Stop owing to have below this position, can not skid off that the phenomenon of having avoided limit shaft from spacing hole, to withdraw from effectively makes the casing location more reliable downwards so can guarantee locating dowel pin.

Embodiment 2:

Be the registration device of outer baffle with the difference of embodiment 1.See also Fig. 5～Fig. 6; In the present embodiment; The registration device of outer baffle comprises and is sleeved on the outer locking of tensioner watt watts 53, is connected with the holding screw and the radius stay 54 that are pressed on the tensioner watt in the locking watts 53, and radius stay passes 55 slips of outer baffle inner ring and is installed in the spoke 56; Radially be provided with slotted hole 561 on the spoke, be provided with the lock screw affixed in the slotted hole with radius stay.Locking watt compresses tensioner through the holding screw on it and watt realizes locking, and radius stay compresses spoke through the lock screw on it and realizes the location.

Above-mentioned outer baffle registration device can be avoided the big problem of embodiment 1 outer baffle registration device difficulty of processing.Because in embodiment 1, outer baffle and turnbarrel are except the nested relationship of abutment sleeve and pilot bar; Be two incoherent parts fully; And the outer baffle pilot bar that is with abutment sleeve outward still is welded on the turnbarrel through riser, and 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 pilot bar; Increasing tolerance clearance needs to guarantee installation, thus, has improved the fugitiveness of outer baffle location; The raising working accuracy increases tooling cost.The two scheme all has certain drawback.

Outer baffle registration device among the embodiment 1; Owing to be provided with the outer baffle pilot bar in the end of riser; Pilot bar is in a single day stressed, for riser, is a cantilever beam structure of only having fixed at afterbody; And outer baffle pilot bar itself also is a cantilever beam structure of only having fixed at afterbody, and 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 reduced height, just need to increase the length of radius stay in the outer baffle registration device, and radius stay itself also would be a cantilever beam structure; If increase the length of radius stay, certainly will reduce its rigidity and load-carrying capacity again.And outer baffle is after being put into the material volume on the unreeling machine; Be manually installed on the unreeling machine; In order to reduce workman's work load; Need again as much as possible with outer baffle do lighter, so its material is also selected the material that density is less, intensity is relatively poor or wall thickness is thin for use, so that its rigidity is not easy to do again is too much.The two has just constituted contradiction.

Present embodiment; Change the registration device of outer baffle into the locking that directly is sleeved on the tensioner watt watt; Locking watt shape and size and tensioner watt coupling; No matter how a tensioner watt formed circular outer diameter size changes, and the shape of tensioner watt itself is fixed, so locking watt can watt realize stable cooperating with tensioner.And the variation of tensioner watt external diameter is to remedy through the position of adjustment radius stay in spoke during tensioner.Present embodiment compresses the location that tensioner watt realizes locking watt through holding screw, and is simple in structure, easy to operate.

In the present embodiment, the steel band outer baffle adopts plectane to add the structure that spoke adds inner ring, and the effect of spoke is equivalent to gusset.The steel band outer baffle also can adopt the structure of the outer ring+spoke+inner ring among the embodiment 1.

Although combine accompanying drawing that the preferred embodiment of the utility model is described above, the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematic; Be not restrictive; Those of ordinary skill in the art not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms under the enlightenment of the utility model; For example; With parts that have identical function among the above embodiment or unit construction mutual alternative, constituting does not have the directly technical scheme of description among above each embodiment, and these all belong within the protection domain of the utility model.

Claims (8)

1. passive unreeling machine of double end; Comprise base and be installed in the casing on the said base; Be provided with fixed-bearing axis in the said casing; A turnbarrel is respectively supported at the two ends of said fixed-bearing axis, and the periphery of said turnbarrel is provided with some tensioners watt, between said tensioner watt and said turnbarrel, is provided with support link; It is characterized in that the outside of said turnbarrel is provided with manual support and contracting mechanism.

2. the passive unreeling machine of double end according to claim 1 is characterized in that, said support and contracting mechanism is drawn together horizontal pull bar and suit supporting sleeve above that, and said supporting sleeve and the circumferential turning cylinder of said pull bar be to captiveing joint,

The outside of said supporting sleeve watt is connected through tensioner connecting rod and said tensioner;

Said turnbarrel outer end is connected with nut;

The outer end of said pull bar is provided with the shank that is positioned at the said supporting sleeve outside, and the inner is provided with and is positioned at the inboard turn-screw section of said supporting sleeve, and said pull bar turn-screw section is connected in the said nut through motion thread.

3. the passive unreeling machine of double end according to claim 1; It is characterized in that; Said tensioner watt is provided with inboard registration device; Said inboard registration device comprises the L shaped connection board that is provided with vertical location division and horizontal connecting portion, and said vertical position point is in the inboard of said horizontal connecting portion, and said horizontal connecting portion is provided with horizontal slotted hole; Said tensioner watt is provided with inner reinforced plate along its length; Said L shaped connection board is affixed through said horizontal slotted hole and said tensioner watt inner reinforced plate on it.

4. the passive unreeling machine of double end according to claim 1 is characterized in that, this unreeling machine comprises outside registration device; Said outside registration device comprises outer baffle and outer baffle registration device.

5. the passive unreeling machine of double end according to claim 1 is characterized in that said casing is rotatably connected on the said support; Said casing is provided with latching device; Said latching device comprises the upper limit cover and the lower limit cover of and coaxial setting affixed with said support; Be coated with limit shaft in said upper limit cover and the said lower limit cover, on the said limit shaft stretcher be installed, said stretcher is between said upper limit cover and said lower limit cover; Between said stretcher and said lower limit cover, be clamped with compression spring; Said compression spring is sleeved on the said limit shaft, and the sidewall of said upper limit cover and/or said lower limit cover is provided with the zigzag groove, is provided with the locating dowel pin affixed with said limit shaft in the said zigzag groove; The base plate of said casing is provided with the spacing hole adaptive with said limit shaft.

6. the passive unreeling machine of double end according to claim 4; It is characterized in that; Said outer baffle registration device comprises that one is long and the other is short two horizontal location sleeves of out-of-alignment and with they adaptive pilot bars, said pilot bar is fixed on the outer circumference surface of said turnbarrel through riser; Said abutment sleeve is fixed on through radius stay on the inner peripheral surface of said outer baffle, and said abutment sleeve is sleeved on the said pilot bar, and said pilot bar is provided with the fastening device of said locating bush.

7. the passive unreeling machine of double end according to claim 4 is characterized in that said outer baffle comprises inner ring and the spoke affixed with it;

Said outside registration device comprises and is sleeved on the outer locking of tensioner watt watt; Be connected with the holding screw and the radius stay that are pressed on the said tensioner watt in the said locking watt; Said radius stay passes said outer baffle inner ring slip and is installed in the said Internal baffle spoke; Radially be provided with slotted hole on the said Internal baffle spoke, be provided with the lock screw affixed in the said slotted hole with said radius stay.

8. the passive unreeling machine of double end according to claim 1 is characterized in that, is connected with the rotary damping brake gear on the said turnbarrel.

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