CN201221019Y

CN201221019Y - Novel expander roller

Info

Publication number: CN201221019Y
Application number: CNU2008200410059U
Authority: CN
Inventors: 杨春根
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-10
Filing date: 2008-07-10
Publication date: 2009-04-15
Anticipated expiration: 2018-07-10

Abstract

The utility model relates to a novel expanding roller which is characterized in that a spindle, and a left-section structure and a right-section structure which are arranged on the spindle in a bilateral symmetry manner; a group of axial eccentric wheels are fixedly arranged on the left-section of the spindle via the left-section structure, the eccentric axial lines of the group of the axial eccentric wheels are parallel, and left-section expanding strips are evenly distributed on the circumferences of the outer rings of the axial eccentric wheels in the circumferential direction; a group of axial eccentric wheels are also fixedly arranged on the right-section of the axial eccentric wheels by the right-section structure, and right-section expanding strips are evenly distributed on the outer rings of the axial eccentric wheels in the circumferential direction; the left-section expanding strips and the right-section expanding strips are spliced to form roll surfaces; in the left-section structure and the right-section structure, the cross sections of all the left-section expanding strips and all the right-section expanding strips are arc-shaped, the radians of the inner surfaces are matched with the circumferential surfaces of the outer rings of the axial eccentric wheels, threaded holes are formed on the circumferential surfaces of the outer rings of all the axial eccentric wheels and in the position facing to the corresponding inner surfaces of the all the expanding strips, through holes are correspondingly formed on all the expanding strips, the expanding strips are connected through screws extended to the threaded holes through the through holes, and assembly gaps are formed at the connecting points. The utility model has the advantages of simplified structure, reduced moving elements and small amount of the wearing parts, and reduces using and maintenance cost.

Description

A kind of novel expander

Technical field

The utility model relates to weaving, dyeing, as cloth is played horizontal tentering, removes the expander of pleat effect on the equipment such as coiler, coating machine, setting machine, calender and brushing machine.

Background technology

In weaving, dyeing, on weaving, dyeing apparatus such as coiler, coating machine, setting machine, calender and brushing machine,, just be provided with expander in order to prevent to play pleat in the cloth course of conveying.

The applicant has applied for that on January 27th, 2006 name is called " expander ", and the patent No. is 200620069090.0 utility model patent, and this patent is open on the Chinese patent bulletin on February 28th, 2007.Expander described in the above-mentioned patent scheme can be described as typical case's representative of expander in the market, its structure is: it comprises on a mandrel, the mandrel and is connected to a roller by bearing holder (housing, cover), this upper edge, roller middle part circumferentially fixedly is evenly equipped with fixedly opening spoke, outer peripheral face upper edge at the roller two ends circumferentially is evenly equipped with mobile opening spoke, and all are opening spoke and mobile opening spoke amalgamation composition roll surface fixedly; Be symmetrically arranged with two axis direction eccentricity wheels on the two ends of mandrel, be provided with bearing between the outer rim of this axis direction eccentricity wheel and mandrel, outer rim is provided with groove; The outer end inner wall of mobile opening spoke is provided with ball pin, and the groove on the spherical head of this ball pin and the axis direction eccentricity wheel inserts and cooperates; And, fixed cover is provided with the track seat ring on the described roller two ends, move opening spoke corresponding to each on the outer peripheral face of this track seat ring track is set vertically, cooperate in each track and be embedded with roller, the roller middle part is fixedly connected with corresponding mobile opening spoke by bearing pin, constitutes the rolling guiding mechanism of mobile opening spoke with this.

Though above-mentioned existing expander can be realized open-width, in use also has the following disadvantages:

1, because existing expander adopts mandrel to add the structure of roller, on whole size and cost, consider, mandrel can not design very slightly, generally at Φ about 35, and its length is longer, generally will be about 2m, the tension force of cloth is very big in the use, these power all are passed on the mandrel, make flexible shake the in mandrel middle part, thereby drive the shake of whole roll surface, influence the open-width effect, even the cloth on the roll surface is carried secretly to other delivery rolls on next door, the clip of cloth causes mandrel and whole damage of bending of roller;

2, roller need rotate during existing expander used, and mobile opening spoke moves axially at eccentric wheel pulling lower edge track again, and moving component is many, used bearing, guiding parts are also many, and these parts all are consumable accessory, and the life-span is short, need normal replacing, working service cost height.

Summary of the invention

The utility model is shaken for mandrel in the use that exists in the solution prior art, and fragile, consumable accessory is many on the whole, and the technical problem that the working service cost is high provides a kind of novel expander.

For achieving the above object, the technical solution adopted in the utility model is: a kind of novel expander comprises symmetrical left segment structure and right segment structure on a mandrel and the mandrel;

Described left segment structure is to set firmly one group of axis direction eccentricity wheel on the section of a mandrel left side, described axis direction eccentricity wheel is made of inner ring, outer ring and bearing, the inner ring middle part is provided with axial eccentric orfice, and inner ring is located on the mandrel with axial eccentric orfice and fixes, and the outer ring is connected on the inner ring by bearing holder (housing, cover); The eccentric axis of described this group axis direction eccentricity wheel parallels, a circumferential uniform left side, the periphery upper edge of its outer ring section opening spoke;

Described right segment structure is symmetrical in left segment structure, is on the right section of mandrel, also to set firmly one group of axis direction eccentricity wheel, and the circumferential uniform right section opening spoke in the upper edge, outer ring of axis direction eccentricity wheel; Roll surface is formed in all left side section opening spokes and the amalgamation of right section opening spoke;

In described left segment structure and the right segment structure, each left side section opening spoke and right section opening spoke cross section are arc, the outer ring side face coupling of the radian of its inner face and axis direction eccentricity wheel, establish screwed hole towards each opening spoke inner face of correspondence on the outer ring side face of each axis direction eccentricity wheel, and correspondence is established through hole on each opening spoke, stretch in the screwed hole with the screw via through holes and to connect, there is the fit-up gap in the junction.

Related content in the technique scheme is explained as follows:

1, in the such scheme, described " left side " " right side " is meant when the expander horizontal is in face of the people, an end towards direction be left, the other end towards direction be the right side.

2, in the such scheme, described " having the fit-up gap " is to instigate screw head and opening spoke, and opening spoke does not compress mutually with eccentric outer ring, between have the gap.The existence of this fit-up gap is in order to turn round, and can form slight being rotationally connected between axis direction eccentricity wheel and opening spoke, promptly screw can be in through hole about swing slightly, there is following several concrete generation type this fit-up gap:

A, directly adopt plain screw, after being seated, screw head is not pressed on opening spoke on the eccentric wheel outer ring, promptly screw head to the distance of axis direction eccentricity wheel outer ring side face greater than the thickness of establishing the through hole opening spoke, and the aperture of through hole is also bigger than normal, and the screw neck can be swung in through hole.This mode can realize, but the gap is bigger, and the loosening degree of opening spoke is big, has influence on the effect of open-width.

B, the special screw of employing, this screw is made of screw head, spherical neck and threaded tail end, and the outer ring side face of described axis direction eccentricity wheel is provided with the face of dodging at screwed hole along the axial both sides of mandrel; Screw stretches in the screwed hole with tail end and connects, and the hole wall of the through hole on its spherical neck and the opening spoke cooperates, connect on the screw head spherical neck one side week upwards also be provided with the face of dodging, form the fit-up gap with this, screw can be swung in through hole.Further again, described through-hole wall also is a sphere, and half sphere coupling on the spherical neck of this sphere and screw.This is a preferred plan.

3, in the such scheme, be further to improve rigidity, increase the bending resistance at middle part, economical with materials again, described mandrel can be made of steel pipe sealing two ends welding spindle nose.

4, in the such scheme, the axial corresponding caulking groove that is provided with of relative amalgamation face upper edge mandrel of described each left side section opening spoke and right section opening spoke, embed with gib block in the caulking groove of corresponding left side section opening spoke and right section opening spoke, the two ends of gib block and the two caulking grooves guiding that is slidingly matched is to improve the synchronous degree of left side section opening spoke and right section opening spoke.

5, in the such scheme, be covered with spring leaf on described through hole side on described each opening spoke inner face, this spring leaf acts between the outer ring of each opening spoke inner face and axis direction eccentricity wheel, increase the outer ring degree of being adjacent to of opening spoke and axis direction eccentricity wheel with this, reduce opening spoke at mandrel activity in the radial direction, the motion that guarantees opening spoke is along the axial translation of mandrel, and spring leaf also has wear-resistant effect, prevents that the opening spoke inner face from being worn and torn by eccentric outer ring.

6, in the such scheme, described " one group of axis direction eccentricity wheel " be meant and more than one axis direction eccentricity wheel generally get final product with two, i.e. last two of left side section on the mandrel, and on the right section two again, correspondence is supporting the both ends of left side section opening spoke and right section opening spoke.Certainly, when roller length is longer, also can increases axis direction eccentricity wheel and support.

The utility model design and operation principle are: the utility model has compared with prior art saved roller, directly each is supporting left side section and right section opening spoke with two axis direction eccentricity wheels, the applying of left side section and right section opening spoke inner face and axis direction eccentricity wheel outer ring side face, opening spoke moving axially along mandrel not only driven but also led.During concrete the use, shown in accompanying drawing 1, mandrel maintains static, carry on the roll surface and pass through cloth, with the tension band action roller face high speed rotating between cloth and roll surface, left side section opening spoke and right section opening spoke axis direction eccentricity wheel drive and guide effect under, along the mandrel axial direction do reciprocal extend out or in contract and move, thereby reach the effect that cloth is carried out horizontal tentering, removes pleat.When roll surface rotates in the circle, each opening spoke just in time is to move to the roller outer end from the recessed shape attitude to become the outer expanding shape attitude, and then is back to the recessed shape attitude, has done moving axially back and forth.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model has been save the guiding mechanism of roller and opening spoke, designs simplification, under the prerequisite that does not increase the total radial dimension of expander, make thicker that mandrel can design, certainly the best is available steel pipe fitting, guarantees the support stiffness of mandrel, reduces the bending deformation quantity at mandrel middle part in using, reduce shake, not only improve the open-width effect but also guaranteed service life.

2, same because the utility model has been save the guiding mechanism of roller and opening spoke, in the use only the outer ring of roll surface and axis direction eccentricity wheel rotate, tumbler is few, few easy workout part, thereby reduced the working service cost.

3, because the utility model has been save the guiding mechanism of roller and opening spoke, roll surface is shared supporting by at least four axis direction eccentricity wheels, on the core wheel, stressed dispersion has improved the bearing capacity of expander to the tension force of cloth through roll surface, four axis direction eccentricity wheel proportionality action in the use.

4, same because the utility model has been save the guiding mechanism of roller and opening spoke, with the axis direction eccentricity wheel opening spoke that directly drives and lead, do not exist mutual friction to move between opening spoke inner face and axis direction eccentricity wheel outer ring, only be to be the slight rotation at center with the screw, the resistance of motion is little, not easy to wear.

Description of drawings

Accompanying drawing 1 partly cuts open schematic diagram for the utility model embodiment overall structure;

Accompanying drawing 2 is the local enlarged diagram in A place in the accompanying drawing 1;

Accompanying drawing 3 is the utility model embodiment left side section opening spoke and right side opening spoke and spring leaf assembling schematic diagram;

Accompanying drawing 4 is the local enlarged diagram of the another kind of structure in A place in the accompanying drawing 1.

In the above accompanying drawing: 1, mandrel; 2, axis direction eccentricity wheel; 3, inner ring; 4, outer ring; 5, bearing; 6, left side section opening spoke; 7, right section opening spoke; 8, screwed hole; 9, through hole; 10, screw; 11, caulking groove; 12, gib block; 13, screw head; 14, spherical neck; 15, tail end; 16, dodge face; 17, dodge face; 18, sphere; 19, steel pipe; 20, spindle nose; 21, spring leaf; 22, draw-in groove.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1～3, a kind of novel expander comprises symmetrical left segment structure and right segment structure on a mandrel 1 and the mandrel 1; Described mandrel 1 is to be connected and composed by steel pipe 19 sealing two ends welding spindle nose 20; Described left segment structure is to set firmly two axis direction eccentricity wheels 2 on mandrel 1 left side section, and the eccentric axis of these two axial eccentric wheels 2 parallels, and the periphery upper edge of its outer ring 4 is uniform many (being illustrated as 8) left side section opening spoke 6 circumferentially; Described right segment structure is symmetrical in left segment structure, is on mandrel 1 right section, also to set firmly two axis direction eccentricity wheels 2, and the upper edge, outer ring of axis direction eccentricity wheel 2 circumferential uniform many (being illustrated as 8) right section opening spoke 7; Roll surface is formed in all left side

section opening spokes

6 and 7 amalgamations of right section opening spoke.

Shown in accompanying drawing 1～3, in described left segment structure and the right segment structure, each axis direction eccentricity wheel 2 is made of inner ring 3, outer ring 4 and bearing 5, and inner ring 3 middle parts are provided with axial eccentric orfice, inner ring 3 is located on the mandrel 1 with axial eccentric orfice and fixes, and outer ring 4 is socketed on the inner ring 3 by bearing 5; The end face structure of each left side section opening spoke and right section opening spoke 6,7 as shown in Figure 3, cross section is an arc, the outer ring 4 side faces coupling of the radian of its inner face and axis direction eccentricity wheel 2, establish screwed hole 8 towards each opening spoke 6,7 inner face of correspondence on outer ring 4 side faces of each axis direction eccentricity wheel 2, and correspondence is established through hole 9 on each opening spoke 6,7, stretch into connection in the screwed hole 8 with screw 10 via through holes 9, there is the fit-up gap in the junction.The formation of concrete this fit-up gap is as follows: shown in accompanying drawing 2, described screw 10 is not common screw but special screw, this screw is to be made of screw head 13, spherical neck 14 and threaded tail end 15, the 4 side face upper edges, outer ring of described axis direction eccentricity wheel 2 circumferentially convex with the projection of a circle arc section, each screwed hole 8 is opened on this projection, and dodge downwards promptly as dodging face 16 these projection upper edge mandrel 1 axial both sides; Screw 10 stretches in the screwed hole 8 with tail end 15 and connects, the hole wall of the through hole 9 on its spherical neck 14 and the opening spoke 6,7 cooperates, the one side of the spherical neck 14 of connection upwards also is provided with the face of dodging 17 in week on the screw head 13,

opening spoke

6,7 is not fixedly killed on the outer ring 4 of axis direction eccentricity wheel 2 with this screw 10, screw 10 can be swung in the through hole 9 of opening spoke 6,7 slightly, be exactly the state after the swing as shown in Figure 2, form the fit-up gap.

Shown in accompanying drawing 1, accompanying drawing 3, the axial corresponding caulking groove 11 that is provided with of relative amalgamation face upper edge mandrel of described each left side section opening spoke 6 and right section opening spoke 7, embed with gib block 12 in the caulking groove 11 of corresponding left side section opening spoke 6 and right section opening spoke 7, the two ends of gib block 12 and two caulking grooves 11 guiding that is slidingly matched, the synchronous degree of left side section opening spoke 6 and right side section opening spoke 7 during raising is used reduces the collision of 7 of left side section opening spoke 6 and right side section opening spokes.Specifically, as shown in Figure 3, left side section opening spoke 6 is aluminium alloy hollow profiles with right section opening spoke 7, its section bar middle part is connected with the twice reinforcement up and down, this two reinforcement promptly promptly constitutes a conduit on the end face of left side section opening spoke 6 and right section opening spoke 7, this conduit as caulking groove 11, is directly embedded gib block 12 in the caulking groove 11 of the left side of amalgamation section opening spoke 6 and the end of right section opening spoke 7.On left section opening spoke 6 and right section opening spoke 7 inner faces, be covered with spring leafs 21 on described through hole 9 sides, fit with the spring leaf 21 and the outer ring 4 of axis direction eccentricity wheel 2, specifically be as Fig. 2, shown in Figure 3, be oppositely arranged draw-in groove 22 on the both sides of the inside of left side section opening spoke 6 and right section opening spoke 7 aluminium alloy extrusions, the dual-side of described spring leaf 21 is fixing in 22 along inlay card in draw-in groove, be a plane under spring leaf 21 natures, after the screw 10 of screwing on puts in place, when spring leaf 21 is fitted with the outer ring 4 of axis direction eccentricity wheel 2, axis direction eccentricity wheel 2 is with top on the spring leaf 21, eliminate left side section opening spoke 6 with the elastic force of spring leaf 21, some gaps that right section opening spoke 7 and eccentric wheel 2 footpaths make progress, prevent excesssive gap, loosening, guaranteed that screw 10 can swing slightly in through hole 9, but loosening again in the radial direction at mandrel 1.

For screw 10 and cooperating of through hole 9 also having a kind of preferred version, as shown in Figure 4, the inwall of through hole 9 is designed to sphere 18 half, and the following half sphere coupling on the spherical neck 14 of this sphere 18 and screw 10, spherical neck 14 offsets to cooperate with sphere 18 and realizes rotating during use, the gap that left like this section opening spoke 6, right section opening spoke 7 and eccentric wheel 2 directly make progress is just littler, and effect is better.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of novel expander is characterized in that: comprise a mandrel (1) and mandrel (1) upward symmetrical left segment structure and right segment structure;

Described left segment structure is to set firmly one group of axis direction eccentricity wheel (2) on the section of mandrel (a 1) left side, described axis direction eccentricity wheel (2) is made of inner ring (3), outer ring (4) and bearing (5), inner ring (3) middle part is provided with axial eccentric orfice, inner ring (3) is located in mandrel (1) with axial eccentric orfice and goes up and fix, and outer ring (4) are socketed on the inner ring (3) by bearing (5); The eccentric axis of described this group axis direction eccentricity wheel (2) parallels, a circumferential uniform left side, the periphery upper edge of its outer ring (4) section opening spoke (6);

Described right segment structure is symmetrical in left segment structure, is on the right section of mandrel (1), also to set firmly one group of axis direction eccentricity wheel (2), and the circumferential uniform right section opening spoke (7) in the upper edge, outer ring of axis direction eccentricity wheel (2); Roll surface is formed in all left side section opening spokes (6) and the amalgamation of right section opening spoke (7);

In described left segment structure and the right segment structure, the cross section of each left side section opening spoke and right section opening spoke (6,7) is an arc, outer ring (4) the side face coupling of the radian of its inner face and axis direction eccentricity wheel (2), establish screwed hole (8) towards each opening spoke (6,7) inner face of correspondence on outer ring (4) side face of each axis direction eccentricity wheel (2), and the last correspondence of each opening spoke (6,7) is established through hole (9), stretch into connection in the screwed hole (8) with screw (10) via through holes (9), there is the fit-up gap in the junction.

2, expander according to claim 1, it is characterized in that: the axial corresponding caulking groove (11) that is provided with of relative amalgamation face upper edge mandrel of described each left side section opening spoke (6) and right section opening spoke (7), embed in the caulking groove (11) of corresponding left side section opening spoke (6) and right section opening spoke (7) two ends of gib block (12) and two caulking grooves (11) guiding that is slidingly matched with gib block (12).

3, expander according to claim 1, it is characterized in that: described screw (10) is made of screw head (13), spherical neck (14) and threaded tail end (15), and outer ring (4) side face of described axis direction eccentricity wheel (2) is provided with the face of dodging (16) at screwed hole (8) along the axial both sides of mandrel (1); Screw (10) stretches in the screwed hole (8) with tail end (15) and connects, the hole wall of the through hole (9) on its spherical neck (14) and the opening spoke (6,7) cooperates, screw head (13) go up to connect spherical neck (14) one side week upwards also be provided with the face of dodging (17), form the fit-up gap with this.

4, expander according to claim 3 is characterized in that: the inwall of described through hole (9) also is sphere (18), and half sphere coupling on the spherical neck (14) of this sphere (18) and screw (10).

5, expander according to claim 1 is characterized in that: described mandrel (1) is to be made of steel pipe (19) sealing two ends welding spindle nose (20).

6, expander according to claim 1, it is characterized in that: at the other spring leaf (21) that is provided with of described through hole (9), this spring leaf (21) acts between the outer ring (4) of left side section opening spoke (6) and right section opening spoke (7) inner face and axis direction eccentricity wheel (2) on the inner face of described left side section opening spoke (6) and right section opening spoke (7).