CN103331992B - A kind of tension control mechanism of printing machine cloth - Google Patents
A kind of tension control mechanism of printing machine cloth Download PDFInfo
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- CN103331992B CN103331992B CN201310216069.3A CN201310216069A CN103331992B CN 103331992 B CN103331992 B CN 103331992B CN 201310216069 A CN201310216069 A CN 201310216069A CN 103331992 B CN103331992 B CN 103331992B
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- swing arm
- connecting rod
- fixed head
- printing machine
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Abstract
A tension control mechanism for printing machine cloth, comprises, fixed head; The swing arm on fixed head is articulated in by a pivot, this swing arm offers one along chute, chute built-in one can along the rolling member of track length direction activity, this swing arm is also provided with the first limit switch and the second limit switch, its signal output part is connected with the controller controlling printing machine work feed motor; Be positioned at the idler roller assembly of swing arm outboard end, the end of this idler roller assembly is articulated on rolling member; And the angular adjustment assembly to rotate relative to fixed head for driving the medial end of swing arm to make swing arm.Idler roller of the present invention is along the different limit switch of rocking arm slide trigger, and the corresponding opening and closing controlling work feed motor, realize automatic cloth feed.Because swing arm also can be fixed on the angle after this adjustment by the angle of adjustable swing arm, make the tensile force size of idler roller to cloth adjustable and can keep invariable, effectively solving the problem of cloth tensioning.
Description
Technical field
The present invention relates to a kind of tension control mechanism of printing machine cloth.
Background technology
Strainer is the vitals of printing machine, and its Main Function carries out tensioning to stocks such as cloth, is convenient to the conveying of cloth and makes cloth be flat when undertaking the printing of figure.
See Fig. 1, existing strainer comprises fixed head 51, swing arm 53 and idler roller 54, the medial extremity of swing arm 53 is articulated on fixed head 51 by a pivot 52, idler roller 54 is connected to the outboard end of swing arm 53, this strainer is in enforcement tensioning process, swing arm 53 pivotally 52 is rotated, and forms different rotational angles.Idler roller 54 is under the pulling of cloth, and it is to the tensile force of cloth applying along with sinusoidal rule changes, and when upright position is put in swing arm 53, tensile force is zero, and when horizontal level is put in swing arm 53, tensile force is maximum.Due to looped fabric and stretch fabric along with its tensile elongation of tension variation also changes thereupon, existing strainer can not realize the adjustment of tensile force size, therefore, after cloth has printed, due to the disappearance of tensile force, cause the figure printed on cloth to change, thus affect printing effect.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to the tension control mechanism providing a kind of printing machine cloth, its size that can realize automatic cloth feed and adjust the tensile force that cloth applies, and can by the maintenance of constant tension size after the adjustment.
For achieving the above object, the present invention adopts following technical scheme:
A tension control mechanism for printing machine cloth, comprises,
Fixed head;
The swing arm on fixed head is articulated in by a pivot, this swing arm offers one to extend along its length and the chute be positioned at outside pivot, chute built-in one can along the rolling member of track length direction activity, this swing arm is also provided with the first limit switch being positioned at chute outboard end and the second limit switch being positioned at chute medial extremity, this first limit switch and the second limit switch corresponding with rolling member, and its signal output part is connected with the controller controlling printing machine work feed motor;
Be positioned at the idler roller assembly of swing arm outboard end, the end of this idler roller assembly is articulated on rolling member; And,
The angular adjustment assembly making swing arm for driving the medial end of swing arm and rotate relative to fixed head.
Angular adjustment assembly comprises with pivot axis parallel and is articulated in connecting rod on fixed head, synchronous is connected on connecting rod and for pushing up the pinch roller of pressure swing arm medial end downwards and being synchronously connected in the rocking arm of connecting rod, and the central shaft of pinch roller is parallel with the central shaft of connecting rod and mutually stagger.
Connecting rod is provided with a Plug Division and is positioned at outside Plug Division and surface and offer externally threaded connecting portion, being socketed on Plug Division of synchronous rocker also can be slided along the length direction of connecting rod; Angular adjustment assembly also includes one for connecting rod being locked in the locking assembly on fixed head, this locking assembly comprise be socketed on connecting rod and be snap-fit at connecting rod is arranged the first friction plate between stage portion and fixed head medial surface, be socketed on connecting rod and the second friction plate between fixed head lateral surface and rocking arm, be screwed onto on connecting portion and handwheel for extruding rocking arm.
Swing arm is also fixed with the bearing of trend tooth bar consistent with the bearing of trend of chute, rolling member is articulated with one and tooth bar meshed gears.
Rolling member is a bearing.
Idler roller assembly comprises interior roller, is socketed in the outer roller of interior roller outside, is fixed on interior roll end and the spindle nose passed by the end of outer roller, and rolling member is articulated in the end of spindle nose, and spindle nose is articulated in the end of outer roller inwall.
Beneficial effect of the present invention is:
Compared to prior art, idler roller of the present invention, along the different limit switch of rocking arm slide trigger, controls the opening and closing of work feed motor accordingly, thus realizes automatic cloth feed.Meanwhile, because swing arm also can be fixed on the angle after this adjustment by the angle of adjustable swing arm, make the tensile force size of idler roller to cloth adjustable and can keep invariable, effectively solving the problem of cloth tensioning.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing strainer;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of angular adjustment assembly;
Fig. 4 is the sectional view of idler roller assembly;
Wherein: 10, fixed head; 11, pivot; 20, swing arm; 21, chute; 22, tooth bar; 23, gear; 24, the first limit switch; 25, the second limit switch; 26, bearing; 30, idler roller assembly; 31, interior roller; 32, outer roller; 33, spindle nose; 40, angular adjustment assembly; 41, pinch roller; 42, connecting rod; 421, connecting portion; 422, Plug Division; 43, handwheel; 44, rocking arm; 45, the first friction plate; 46, the second friction plate.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further:
See Fig. 2, 3, 4, for the tension control mechanism of a kind of printing machine cloth of the present invention, comprise fixed head 10, swing arm 20, idler roller assembly 30 and angular adjustment assembly 40, fixed head 10 is as the installation foundation of whole mechanism, swing arm 20 is articulated on fixed head 10 by a pivot 11, swing arm 20 offers one to extend along its length and the chute 21 be positioned at outside pivot 11, this chute 21 is built-in with one can along the bearing 26 of chute 21 length direction activity, the diameter of this bearing 26 outer ring is suitable with the width of chute 21, it is limited in chute 21 and also can rolls in chute 21, swing arm 20 top is also provided with the first limit switch 24 and the second limit switch 25, above the outboard end that first limit switch 24 and the second limit switch 25 lay respectively at chute 21 and medial end, corresponding with bearing 26 respectively both it, be rolled to the relevant position of chute 21 at bearing 26 after, the first limit switch 24 and the second limit switch 25 can obtain signal accordingly, the first above-mentioned limit switch 24 is connected with the controller controlling printing machine work feed motor with the signal output part of the second limit switch 25, the signal that controller sends according to above-mentioned first limit switch 24 and the second limit switch 25, control the opening and closing of work feed motor, particularly, when bearing 26 is rolled to first limit switch 24 one end, work feed motor cuts out, and when bearing 26 is rolled to second limit switch 25 one end, work feed motor is opened.The end pivot joint of above-mentioned idler roller assembly 30 over the shaft 26, both sides of the present invention be provided with the size of a fixed head 10 and swing arm 20, two swing arm 20 and structure identical, the two end portions of idler roller assembly 30 is articulated on the bearing 26 in two swing arms 20.
Angular adjustment assembly 40 is mainly used in the adjustment angle of swing arm 20 and the position for the angle of swing arm 20 being fixed on; This angular adjustment assembly 40 comprises parallel with pivot 11 and being articulated in connecting rod 42 on fixed head 10, synchronous being connected on connecting rod 42 and for pushing up the pinch roller 41 of pressing swing arm 20 medial end and the Rocker arm 44 being synchronously connected in connecting rod 42 downwards, and the central shaft of pinch roller 41 is parallel with the central shaft of connecting rod 42 and mutually stagger.Swing arm 20 connects into a leverage by pivot 11, outside it, turning end bears the gravity of idler roller assembly 30, there is the trend moved downward, medial extremity is then pressed on the bottom of pinch roller 41, when needing the rotational angle adjusting swing arm 20, then rotate Rocker arm 44, pinch roller 41 is driven to rotate, because pinch roller 41 and connecting rod 42 form an Eccentric earn mechamism, thus, when rotating clockwise Rocker arm 44, pinch roller 41 can to the medial end pressing down swing arm 20, thus the idler roller assembly 30 making swing arm 20 outboard end connect upwards rotates, otherwise, when rotating counterclockwise Rocker arm 44, then idler roller assembly 30 can rotate under gravity, until the medial end top of swing arm 20 is pressed on pinch roller 41 lower circumferential face.In addition, connecting rod 42 is provided with a Plug Division 422 and be positioned at outside Plug Division 422 and surface and be provided with externally threaded connecting portion 421, the cross section of Plug Division 422 is square; Rocker arm 44 is provided with and penetrates and the square hole of form fit for Plug Division 422; utilize square hole and Plug Division 422 to coordinate; can make Rocker arm 44 that connecting rod 42 can not only be driven to rotate, and Rocker arm 44 can slide along the length direction of connecting rod 42 simultaneously.Above-mentioned angular adjustment assembly 40 also includes one for connecting rod 42 being locked in the locking assembly of fixed head 10, this locking assembly comprise be socketed on connecting rod 42 and be snap-fit at connecting rod 42 is arranged the first friction plate 45 between stage portion and fixed head 10 medial surface, be socketed on connecting rod 42 and the second friction plate 46 between fixed head 10 lateral surface and Rocker arm 44, be screwed onto the outside and handwheel 43 for extruding Rocker arm 44 of connecting portion 421; After rotation Rocker arm 44 adjusts the angle of swing arm 20, inwardly screw handwheel 43 and inside extruding Rocker arm 44; Rocker arm 44 then extrudes the second friction plate 46; after screwing handwheel 43 fully; fixed head 10 is folded between the first friction plate 45 and the second friction plate 46; thus connecting rod 42 can not be rotated relative to fixed head 10, that is pinch roller 41 does not have the free degree of rotation, thus the angle making swing arm 20 keep after the adjustment.
In such scheme of the present invention, have employed bearing 26 as rolling member, it can also adopt the parts as roller etc. can roll in chute 21.In order to ensure the movement that idler roller assembly 30 is synchronous on the bearing of trend along chute 21, swing arm 20 is also fixed with the bearing of trend tooth bar consistent with the bearing of trend of chute 21 22, bearing 26 is articulated with one and tooth bar 22 meshed gears 23, the tooth bar 22 of both sides and gear 23 acting in conjunction corresponding with it, enable synchronous the moving along chute 21 in idler roller assembly 30 two ends.
Idler roller assembly 30 comprises interior roller 31, is socketed in the outer roller 32 of interior roller 31 outside, is fixed on interior roller 31 end and the spindle nose 33 passed by the end of outer roller 32, and bearing 26 is articulated in the end of spindle nose 33, and spindle nose 33 is articulated in the end of outer roller 32 inwall.
The present invention in use, idler roller assembly 30 is utilized to implement tensioning, its concrete steps are, first according to the requirement of cloth, adjust the angle of swing arm 20, idler roller assembly 30 is made to be in corresponding angle, owing to not being subject to the pressure of cloth, idler roller assembly 30 under gravity, be positioned at the bottom of bottom chute 21, the namely side of the first limit switch 24, now work feed motor cuts out, printing machine interval pull cloth, and the bearing of trend of idler roller assembly 30 along chute 21 is upwards drawn high, in this process, tensioning implemented by idler roller assembly 30 pairs of cloth, and constantly along chute 21 towards the second limit switch 25 1 lateral movement, when sliding into the second limit switch 25 place, work feed motor is opened, start to export cloth.
Said mechanism is after the angle of adjustment swing arm 20, and swing arm 20 is fixed on this angle, because idler roller assembly 30 is implementing tensioning along the component on chute 21 bearing of trend to cloth according to self gravitation, therefore, after swing arm 20 fixed angle, the tensile force that the idler roller assembly that it connects 30 pairs of cloth apply is also just invariable, thus effectively solves the problem of cloth tensioning.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (5)
1. a tension control mechanism for printing machine cloth, is characterized in that, comprises,
Fixed head;
The swing arm on fixed head is articulated in by a pivot, this swing arm offers one to extend along its length and the chute be positioned at outside pivot, chute built-in one can along the rolling member of track length direction activity, this swing arm is also provided with the first limit switch being positioned at chute outboard end and the second limit switch being positioned at chute medial extremity, this first limit switch and the second limit switch corresponding with rolling member, and its signal output part is connected with the controller controlling printing machine work feed motor;
Be positioned at the idler roller assembly of swing arm outboard end, the end of this idler roller assembly is articulated on rolling member; And,
The angular adjustment assembly making swing arm for driving the medial end of swing arm and rotate relative to fixed head, angular adjustment assembly comprises with pivot axis parallel and is articulated in connecting rod on fixed head, synchronous is connected on connecting rod and for pushing up the pinch roller of pressure swing arm medial end downwards and being synchronously connected in the rocking arm of connecting rod, and the central shaft of pinch roller is parallel with the central shaft of connecting rod and mutually stagger.
2. the tension control mechanism of printing machine cloth as claimed in claim 1, it is characterized in that, connecting rod is provided with a Plug Division and is positioned at outside Plug Division and surface and offer externally threaded connecting portion, being socketed on Plug Division of synchronous rocker also can be slided along the length direction of connecting rod; Angular adjustment assembly also includes one for connecting rod being locked in the locking assembly on fixed head, this locking assembly comprise be socketed on connecting rod and be snap-fit at connecting rod is arranged the first friction plate between stage portion and fixed head medial surface, be socketed on connecting rod and the second friction plate between fixed head lateral surface and rocking arm, be screwed onto on connecting portion and handwheel for extruding rocking arm.
3. the tension control mechanism of printing machine cloth as claimed in claim 1, is characterized in that, swing arm is also fixed with the bearing of trend tooth bar consistent with the bearing of trend of chute, rolling member is articulated with one and tooth bar meshed gears.
4. the tension control mechanism of printing machine cloth as claimed in claim 1, it is characterized in that, rolling member is a bearing.
5. the tension control mechanism of printing machine cloth as claimed in claim 1, it is characterized in that, idler roller assembly comprises interior roller, is socketed in the outer roller of interior roller outside, is fixed on interior roll end and the spindle nose passed by the end of outer roller, rolling member is articulated in the end of spindle nose, and spindle nose is articulated in the end of outer roller inwall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310216069.3A CN103331992B (en) | 2013-06-03 | 2013-06-03 | A kind of tension control mechanism of printing machine cloth |
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| CN201310216069.3A CN103331992B (en) | 2013-06-03 | 2013-06-03 | A kind of tension control mechanism of printing machine cloth |
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| CN103331992B true CN103331992B (en) | 2015-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109229650A (en) * | 2018-08-08 | 2019-01-18 | 东旭科技集团有限公司 | Paper paving machine and glass conveying equipment |
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| CN110466258A (en) * | 2019-09-25 | 2019-11-19 | 浙江腾创机械设备有限公司 | A kind of industrial textile spray drawing machine |
| CN113620194B (en) * | 2021-08-23 | 2023-02-24 | 广西汉华建筑设计有限公司 | Lifting equipment |
| CN116373480B (en) * | 2023-06-01 | 2023-08-18 | 珠海芯烨电子科技有限公司 | Deflection-preventing tensioning structure and method |
| CN116695295B (en) * | 2023-08-08 | 2023-10-17 | 江苏欣战江纤维科技股份有限公司 | Wire feeding tension control equipment for false twist texturing machine |
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| CN2411264Y (en) * | 1999-12-23 | 2000-12-20 | 广东省东方剑麻集团有限公司 | Warp yarn tension dynamic actuating device for jute weaving machine |
| DE10152523B4 (en) * | 2001-10-24 | 2005-10-06 | Koenig & Bauer Ag | Feeding means for drawing in a material web |
| CN100491127C (en) * | 2004-06-11 | 2009-05-27 | 陈亿善 | Automatic regulator for preventing fabric of spray drawing machine from moving away and regulating tension force |
| CN101775725A (en) * | 2010-03-01 | 2010-07-14 | 江苏俊峰纺织机械有限公司 | Automatic deviation rectifying device of natural lustre finishing machine cloth supporting strip with manual adjustment mechanism |
| CN202753565U (en) * | 2012-08-09 | 2013-02-27 | 上海亚华印刷机械有限公司 | Automatically collecting waste foil straining mechanism for gilding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229650A (en) * | 2018-08-08 | 2019-01-18 | 东旭科技集团有限公司 | Paper paving machine and glass conveying equipment |
| CN109229650B (en) * | 2018-08-08 | 2021-06-22 | 东旭光电科技股份有限公司 | Paper laying machine and glass conveying equipment |
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