CN106743893A - Tensioning apparatus - Google Patents
Tensioning apparatus Download PDFInfo
- Publication number
- CN106743893A CN106743893A CN201611029106.XA CN201611029106A CN106743893A CN 106743893 A CN106743893 A CN 106743893A CN 201611029106 A CN201611029106 A CN 201611029106A CN 106743893 A CN106743893 A CN 106743893A
- Authority
- CN
- China
- Prior art keywords
- plane
- lead column
- fairlead
- live
- tensioning apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/22—Distance
- B65H2511/222—Stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/31—Tensile forces
- B65H2515/314—Tension profile, i.e. distribution of tension, e.g. across the material feeding direction or along diameter of web roll
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a kind of tensioning apparatus, there is an inclined-plane for adjustable tilt angle on the sliding block of the tensioning apparatus, it is provided with lead column and stretches out fairlead and in the guide part of inclined-plane walking, so that inclined-plane forces guide part to drive lead column vertical shift, to drive tensioning wheel to move.The present invention changes the equivalent coefficient of elasticity of spring by changing the angle of inclination on inclined-plane, and then provides differential tension scope, i.e. higher range or relatively low scope, and by adjusting angle of inclination, can make up spring there is failure and to the influence of coefficient of elasticity；And adjusted by governor motion due to the change of tension force caused by the pressure change between live-roller, it is held essentially constant tension force.
Description
Technical field
The present invention relates to textile technology field, more particularly to a kind of tensioning apparatus.
Background technology
In textile technology field, when cloth arranges coiled, cloth is transmitted typically on multipair spaced live-roller.
Specifically, cloth is clamped between a pair of live-rollers, so that certain frictional force is produced between cloth and live-roller, so as to
Cloth is conveyed using live-roller.In order that cloth has some tension to make cloth have afterwards in rolls necessarily in course of conveying
Consistency, generally, sets a strainer between two pairs of live-rollers, and the strainer makes cloth produce some tension.
In the prior art, for be tensioned the strainer of cloth include one be used to being resisted against tensioning wheel on cloth and
For pushing against tensioning wheel so that tensioning wheel is resisted against the spring on cloth with certain pretightning force.This structure is actually that spring leads to
Tensioning wheel is crossed for cloth provides tension force, the compression degree of spring is bigger, and the tension force of cloth is bigger, and the compression degree of spring is smaller,
The tension force of cloth is smaller.But because the coefficient of elasticity of spring is certain, the compression zone of spring is also certain, therefore, spring is only
A range of tension force can be provided for cloth.One more prominent shortcoming of this structure is, due to the Reusability of spring, spring
Fatigue failure can occur, so that its coefficient of elasticity reduces, finally enough tension force can not be provided for cloth, influence cloth is coiled
Consistency afterwards.
Additionally, above-mentioned strainer can not provide stable tension for cloth, because being produced between cloth and live-roller
Raw frictional force is unstable（When the pressure between a pair of live-rollers increases, produced frictional force between cloth and live-roller
To increase, it is produced between cloth and live-roller when the pressure reduction between a pair of live-rollers, or live-roller are worn serious
Frictional force will reduce）, the size of frictional force can also influence the tension force of cloth, for example, when frictional force reduces so that cloth is opened
Begin lax, so that tensioning wheel starts movement towards cloth direction, spring-compressed degree diminishes, so that tension force diminishes；On the contrary,
When frictional force increases so that cloth starts to tense, so that tensioning wheel starts movement, spring-compressed journey towards away from cloth direction
Degree becomes increase, so that tension force becomes increase.Tension force is unstable also to produce influence to consistency of the cloth after coiled.
The content of the invention
For above-mentioned technical problem of the prior art, the invention discloses a kind of tensioning apparatus for adjusting cloth tension.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of tensioning apparatus, it is used to provide tension force for the cloth between two pairs of live-rollers, including：
Mounting seat, it is used to be arranged on fixing equipment；
Fairlead, it is vertically arranged in the mounting seat；
Lead column, it is arranged in fairlead, and can be along the fairlead vertical shift；
Tensioning wheel, it is arranged in lead column, and for being contacted with cloth；
Sliding block, its level in the mounting seat is slided with closer or far from the fairlead；
First spring, it is arranged in the fairlead, and positioned at lead column lower section for pushing against the lead column；
Second spring, it is set with the direction moved perpendicular to the lead column and pushes against the cunning with towards the fairlead direction
Block；
Governor motion, the extruding force between the mobile regulation live-roller according to tensioning wheel, wherein：
There is an inclined-plane for adjustable tilt angle on the sliding block, be provided with the lead column and stretch out the fairlead simultaneously
In the guide part of inclined-plane walking, so that the inclined-plane forces the guide part to drive the lead column vertical shift.
Preferably, the governor motion includes：
Oil cylinder, the live-roller that its piston rod is used to push against in a pair of live-rollers is extruded towards another live-roller；
Reversal valve, the reversal valve includes the valve body being fixed on vertically in the mounting seat and is arranged on the body cavity room
And be capable of the valve element of vertical shift and one end is connected with the valve element, the other end stretch out the valve body upper end and with the guiding
The valve rod that post is fixedly connected；The chamber is divided into upper chamber and lower chambers, the upper chamber and the oil cylinder by the valve element
Rod chamber is connected, and the lower chambers are connected with the rodless cavity of the oil cylinder.
Preferably, the guide part include be fixed on the lead column and towards the inclined-plane extend installing arm and be articulated in
The installing arm free end and the road wheel abutted with the inclined-plane.
Preferably, rotor is provided with the sliding block, the rotor can be rotated and fixed relative to the sliding block, institute
Inclined-plane is stated to be formed on the rotor.
Preferably, the rotor is segmental rotor, and the inclined-plane is the planar section of the segmental rotor outer peripheral face.
Preferably, one end of the segmental rotor is fixed with bearing pin, and long arc-shaped holes, the bearing pin are offered on the sliding block
Locked by nut after wearing the long arc-shaped holes.
Preferably, the first dovetail slideway is formed with the wire block, the first dovetail groove, institute is offered on the inclined-plane
The first dovetail slideway is stated to be arranged in first dovetail groove.
Preferably, the second dovetail slideway is formed with the sliding block, is offered on the upper mounting surface of the mounting seat
Two dovetail grooves, second dovetail slideway is arranged in second dovetail groove.
Compared with prior art, the beneficial effect of tensioning apparatus of the invention is：Inclination by changing inclined-plane of the invention
Angle changes the equivalent coefficient of elasticity of spring, and then provides differential tension scope, i.e. higher range or relatively low scope, and leads to
Overregulate angle of inclination, can make up spring occur failure and to the influence of coefficient of elasticity；And adjusted by governor motion due to
The change of tension force caused by pressure change between live-roller, is held essentially constant tension force.
Brief description of the drawings
Fig. 1 is tensioning apparatus of the invention in the schematic diagram compared with small tension receiving coil state.
Fig. 2 is the schematic diagram that tensioning apparatus of the invention is in larger tension state.
Specific embodiment
To make those skilled in the art be better understood from technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula elaborates to the present invention.
As depicted in figs. 1 and 2, embodiment of the invention discloses that a kind of tensioning apparatus, the tensioning apparatus is for being two pairs
Cloth 15 between live-roller 14 provides tension force.The tensioning apparatus is specifically included：Mounting seat 1, fairlead 2, lead column 3, tensioning
Wheel 4, sliding block 5, the first spring 19, second spring 6 and governor motion.Mounting seat 1 is fixed on the entirety for transmitting cloth 15
In equipment, and between two pairs of live-rollers 14 cloth 15 lower section；Fairlead 2 is vertical to be fixed in mounting seat 1, and edge is led
A vertical slots are opened up on jacket wall to the axial direction of set 2；Lead column 3 is arranged in fairlead 2, and fairlead 2 and lead column 3 have
Gathering sill and guide rail that mutual cooperation and vertical direction extend, so that lead column 3 can freely be moved vertically set 2 is oppositely oriented
It is dynamic, rotated without being oppositely oriented set 2；Tensioning wheel 4 is fixed on the upper end of lead column 3, its following table for being connected to cloth 15
Face is so that cloth 15 produces some tension；Sliding block 5 be capable of level slide closer or far from fairlead 2；Sliding block 5 is away from fairlead
A baffle plate 13 is fixed in 2 side, and second spring 6 is arranged between baffle plate 13 and sliding block 5 and pushes against sliding block 5 with towards the direction of fairlead 2；
First spring 19 is arranged in the fairlead 2, and positioned at the lower section of the lead column 3 for pushing against the lead column 3.The present invention
It is critical only that：One inclined-plane 8 that can adjust angle of inclination is set on sliding block 5, a guiding is set in lead column 3
Portion, the guide part is stretched out outside fairlead 2 by vertical slots, is stretched to sliding block 5 and is contacted with the inclined-plane 8 of sliding block 5, so that inclined-plane 8
Lead column 3 is pushed against by guide part so that tensioning wheel 4 is moved to the direction of cloth 15, or tensioning wheel 4 is driven by lead column 3 and led
To portion, sliding block 5 is pushed against so that second spring 6 is compressed to the direction away from fairlead 2 by inclined-plane 8, and tensioning wheel 4 is cloth
15 tension force for providing provide generation jointly by the first spring 19 and horizontally disposed second spring 6 being vertically arranged.The present invention
Key also reside in：Governor motion according to the extruding force between the mobile regulation live-roller 14 of tensioning wheel 4, due to cloth 15
Tension force it is not only relevant with the pretightning force that tensioning wheel 4 is provided, it is also relevant with the pressure between live-roller 14, when live-roller 14 it
Between pressure increase when, tension force can become big, when between live-roller 14 pressure reduce when, tension force can diminish.In order that live-roller
14 pressure keeps relative constancy so that tension force keeps constant, by governor motion, when tension force increase reduction live-roller 14 it
Between pressure, when strain is relieved increase live-roller 14 between pressure.
Said structure can expand adjustable range of the tensioning wheel 4 to the tension force of cloth 15, and its reason is：Cloth 15 is produced
Raw tension force is main to be provided the pretightning force of cloth 15 by tensioning wheel 4, and the pretightning force is directly provided by the elastic force of the first spring 19
And the elastic force of second spring 6 is provided indirectly（Both are common to provide）, do not considering the gravity of lead column 3 and other moving parts
Frictional force in the case of（Even if actually considering gravity and frictional force, effect is also identical）, it is pre- that second spring 6 is provided
Clamp force F1 is with the elastic force F2 relations of second spring 6：F1=F2/tga, wherein：A is the inclination angle with respect to the horizontal plane of inclined-plane 8
Degree, because the coefficient of elasticity of second spring 6 is constant, when spring produces the pushing force of a certain numerical value, its compression degree（It is interchangeable herein
It is horizontal displacement to calculate）It is certain, and pretightning force can have various numerical value by changing the angle of inclination on inclined-plane 8.Namely
Say, under different angles of inclination, in the case where the compression degree of second spring 6 is constant, tensioning wheel 4 can provide different pretensions
Power, if assume that second spring 6 is identical with the first spring 19 is also set directly at the lower section of lead column 3 in vertical mode, by tune
Section angle of inclination, under a certain pretightning force, tensioning wheel 4 can have different vertical positions, and spring has different compression degrees,
Form different equivalent coefficient of elasticity.
In sum, by changing the angle of inclination on inclined-plane 8 so that spring has different equivalent coefficients, when cloth 15
Need during with larger tension range, as shown in Fig. 2 reducing the angle of inclination on inclined-plane 8, i.e. the numerical value of a reduces, then equivalent system
Number increase, so that the pretightning force increase of tensioning wheel 4, finally increases the tension adjustment range of cloth 15.In the same manner, cloth is worked as
15 need during with compared with small tension receiving coil scope, as shown in figure 1, increasing the angle of inclination on inclined-plane 8, i.e. the numerical value of a increases, then equivalent
Coefficient is smaller, so that the pretightning force of tensioning wheel 4 reduces, finally reduces the tension adjustment range of cloth 15.
The present invention changes the equivalent coefficient of elasticity of spring by changing the angle of inclination on inclined-plane 8, and then provides different
Power scope, i.e. higher range or relatively low scope, and by adjusting angle of inclination, spring can be made up and failure is occurred and is to elasticity
Several influences.
In a preferred embodiment of the invention, governor motion includes oil cylinder 18 and reversal valve 16.The piston of oil cylinder 18
Boom end has an arc collet, and the collet is used for a live-roller 14 of support bottom, and piston rod makes a pair of biographies by flexible
Pressure increase or reduction between dynamic roller 14, so that frictional force increase or reduction between cloth 15 and live-roller 14, and then
The tension force of cloth 15 is set to increase or reduce.Reversal valve 16 includes the valve body being fixed on vertically in mounting seat 1 and is arranged on valve body
The valve element of vertical shift is simultaneously capable of and one end is connected with valve element in inner cavity chamber, and the other end stretches out valve body upper end and solid with lead column 3
The valve rod 17 of fixed connection；Chamber is divided into upper chamber and lower chambers by valve element, and upper chamber connects with the rod chamber of oil cylinder 18, lower chambers
Rodless cavity with oil cylinder 18 is connected.
Said structure causes that tensioning wheel 4 realizes linkage, the valve element of the mobile change reversal valve 16 of tensioning wheel 4 with reversal valve 16
Position.When tensioning wheel 4 is moved towards cloth 15, lead column 3 is moved up by valve rod 17 with movable valve plug, and hydraulic oil is by cavity of resorption
Room enters the rodless cavity of oil cylinder 18 so that piston rod overhang increases, and then the pressure between live-roller 14 is kept constant；When
Tensioning wheel 4 towards moved away from the direction of cloth 15 when, lead column 3 is moved down by valve rod 17 with movable valve plug, and hydraulic oil is by upper
Chamber enters the rod chamber of oil cylinder 18 so that piston rod overhang reduces, and then the pressure between live-roller 14 is kept constant.
In a preferred embodiment of the invention, guide part includes the installation for being fixed on lead column 3 and extending towards inclined-plane 8
Arm 9 and it is articulated in the free end of installing arm 9 and the road wheel 10 abutted with inclined-plane 8.Road wheel 10 is walked on inclined-plane 8.
Selected as one kind, be provided with rotor 7 on sliding block 5, rotor 7 can opposing slider 5 rotate and fix, inclined-plane
8 are formed on rotor 7.
Selected as one kind, rotor 7 is segmental rotor, inclined-plane 8 is the planar section of segmental rotor outer peripheral face.
For inclined-plane 8 can be made fixed after angle of inclination is adjusted, bearing pin 12, sliding block 5 are fixed with one end of segmental rotor
On offer long arc-shaped holes 11, bearing pin 12 is locked after wearing long arc-shaped holes 11 by nut.When needing regulation angle, nut is sent in rotation,
Tightening nut is again adjusted after angle.
To prevent guide pad from departing from inclined-plane 8, the first dovetail slideway is formed with wire block, first is offered on inclined-plane 8
Dovetail groove, the first dovetail slideway is arranged in the first dovetail groove, and guide pad is slided along the first dovetail groove.
To make sliding block 5 be slided towards fairlead 2, the second dovetail slideway, the upper installation of mounting seat 1 are formed with sliding block 5
The second dovetail groove extended towards fairlead 2 is offered on face, the second dovetail slideway is arranged in the second dovetail groove, sliding block 5
Slided along the second dovetail groove.
Above example is only exemplary embodiment of the invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in essence of the invention and protection domain to the present invention
Modification or equivalent are planted, this modification or equivalent also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of tensioning apparatus, it is used to provide tension force for the cloth between two pairs of live-rollers, it is characterised in that including：
Mounting seat, it is used to be arranged on fixing equipment；
Fairlead, it is vertically arranged in the mounting seat；
Lead column, it is arranged in fairlead, and can be along the fairlead vertical shift；
Tensioning wheel, it is arranged in lead column, and for being contacted with cloth；
Sliding block, its level in the mounting seat is slided with closer or far from the fairlead；
First spring, it is arranged in the fairlead, and positioned at lead column lower section for pushing against the lead column；
Second spring, it is set with the direction moved perpendicular to the lead column and pushes against the cunning with towards the fairlead direction
Block；
Governor motion, the extruding force between the mobile regulation live-roller according to tensioning wheel, wherein：
There is an inclined-plane for adjustable tilt angle on the sliding block, be provided with the lead column and stretch out the fairlead simultaneously
In the guide part of inclined-plane walking, so that the inclined-plane forces the guide part to drive the lead column vertical shift.
2. tensioning apparatus according to claim 1, it is characterised in that the governor motion includes：
Oil cylinder, the live-roller that its piston rod is used to push against in a pair of live-rollers is extruded towards another live-roller；
Reversal valve, the reversal valve includes the valve body being fixed on vertically in the mounting seat and is arranged on the body cavity room
And be capable of the valve element of vertical shift and one end is connected with the valve element, the other end stretch out the valve body upper end and with the guiding
The valve rod that post is fixedly connected；The chamber is divided into upper chamber and lower chambers, the upper chamber and the oil cylinder by the valve element
Rod chamber is connected, and the lower chambers are connected with the rodless cavity of the oil cylinder.
3. tensioning apparatus according to claim 2, it is characterised in that the guide part includes being fixed on the lead column simultaneously
The installing arm that extends towards the inclined-plane and it is articulated in the installing arm free end and the road wheel abutted with the inclined-plane.
4. tensioning apparatus according to claim 3, it is characterised in that rotor, the rotation are provided with the sliding block
Body can be rotated and fixed relative to the sliding block, and the inclined-plane is formed on the rotor.
5. tensioning apparatus according to claim 4, it is characterised in that the rotor is segmental rotor, and the inclined-plane is
The planar section of the segmental rotor outer peripheral face.
6. tensioning apparatus according to claim 5, it is characterised in that one end of the segmental rotor is fixed with bearing pin, institute
State and long arc-shaped holes are offered on sliding block, the bearing pin is locked after wearing the long arc-shaped holes by nut.
7. tensioning apparatus according to claim 6, it is characterised in that be formed with the first swallow-tail form on the wire block and lead
Rail, offers the first dovetail groove on the inclined-plane, first dovetail slideway is arranged in first dovetail groove.
8. tensioning apparatus according to claim 7, it is characterised in that the second dovetail slideway is formed with the sliding block,
The second dovetail groove is offered on the upper mounting surface of the mounting seat, second dovetail slideway is arranged on second dovetail groove
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029106.XA CN106743893A (en) | 2016-11-19 | 2016-11-19 | Tensioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029106.XA CN106743893A (en) | 2016-11-19 | 2016-11-19 | Tensioning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106743893A true CN106743893A (en) | 2017-05-31 |
Family
ID=58971556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029106.XA Withdrawn CN106743893A (en) | 2016-11-19 | 2016-11-19 | Tensioning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106743893A (en) |
-
2016
- 2016-11-19 CN CN201611029106.XA patent/CN106743893A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |