CN204385402U - The oscillating back rest of loom - Google Patents
The oscillating back rest of loom Download PDFInfo
- Publication number
- CN204385402U CN204385402U CN201420861483.XU CN201420861483U CN204385402U CN 204385402 U CN204385402 U CN 204385402U CN 201420861483 U CN201420861483 U CN 201420861483U CN 204385402 U CN204385402 U CN 204385402U
- Authority
- CN
- China
- Prior art keywords
- back rest
- swing arm
- loom
- eccentric bushing
- fixedly connected
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to loom field, disclose a kind of oscillating back rest of loom, comprise power transmission shaft (1), eccentric bushing (2), joint (3), connecting rod (4), swing arm (7), rear beam seat (8) and back rest roller (9), described power transmission shaft (1) is fixedly connected with eccentric bushing (2), the front end of joint (3) is connected by rolling bearing (6) with eccentric bushing (2), the rear end of joint (3) is fixedly connected with by adjusting bolt (12) with the front end of connecting rod (4), the rear end of connecting rod (4) and the lower end of swing arm (7) are rotationally connected, the upper end of swing arm (7) is fixed, the front end of rear beam seat (8) is fixedly connected with the top of swing arm (7), the rear end spring-damper (11) of rear beam seat (8) supports, back rest roller (9) is arranged on rear beam seat (8).Compared with prior art, the utility model can prevent through yarn damage and reduce cracked ends.
Description
Technical field
The utility model relates to loom field, particularly a kind of oscillating back rest of loom.
Background technology
Air-jet loom and Rapier looms, there is the speed of a motor vehicle high, varietal adaptation is wide, production efficiency is high, the advantages such as the fabric quality produced is good, be used widely, but during this type of loom spun fabric that the elasticity such as fine-count pure cotton fabric is poor aborning, because the characteristic of fabric limits, when weaving at a high speed, warp thread can be stretched and extend or the abnormal increase of tension force in frequent harness motion, the cyclically-varying of 800-1000 time per minute, can cause through yarn damage and occur cracked ends phenomenon, impact start efficiency and fabric quality.
Utility model content
utility model object:for problems of the prior art, the utility model provides a kind of oscillating back rest of loom, effectively can prevent through yarn damage and reduce cracked ends.
technical scheme:the utility model provides a kind of oscillating back rest of loom, comprise power transmission shaft, eccentric bushing, joint, connecting rod, swing arm, rear beam seat and back rest roller, described power transmission shaft is fixedly connected with eccentric bushing, the front end of joint is connected by rolling bearing with the periphery of eccentric bushing, the rear end of joint is fixedly connected with the front end of connecting rod by adjusting bolt, the rear end of connecting rod and the lower end of swing arm are rotationally connected, the upper end of swing arm is fixed, the front end of rear beam seat is fixedly connected with the top of swing arm, the rear end spring-damper of rear beam seat supports, and back rest roller is arranged on rear beam seat.
Preferably, described power transmission shaft is fixedly connected with eccentric bushing by clamping ring.
operation principle and beneficial effect:the utility model operationally, power from loom drives drive axis, the rotation of power transmission shaft drives the eccentric bushing be fixedly connected with it to rotate, and then drive the joint of eccentric bushing periphery to move forward and backward with the eccentric throw that eccentric bushing is double, connecting rod also seesaws thereupon, the other end of connecting rod drives swing arm to take fixing point as centre swinging, along with the swing of swing arm, beam seat anterior-posterior translation together with back rest roller after driving, in above-mentioned whole process, warp thread is from opening to remaining silent whole process, the back rest there occurs change relative to the position of fell, but the length of warp thread remains unchanged substantially, namely loom is kept to remain silent equal with the length of warp thread during opening, effective compensation and cushioning effect is played to warp thread, effectively prevent through yarn damage and reduce cracked ends.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the amplification view in A-A face in Fig. 1;
Fig. 3 be fell remain silent and opening time warp thread length schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model preferred embodiment is described in detail.
The oscillating back rest structure of the loom in present embodiment as depicted in figs. 1 and 2, it is peripheral that eccentric bushing 2 is enclosed within power transmission shaft 1, and be fixedly connected with power transmission shaft 1 by clamping ring 5, the front end sleeve of joint 3 is peripheral at eccentric bushing 2, and by the outer surface Structure deformation of rolling bearing 6 with eccentric bushing 2, the rear end of joint 3 is fixedly connected with the front end of connecting rod 4 by rotating adjusting bolt 12, the rear end of connecting rod 4 and the lower end of swing arm 7 are rotationally connected, the upper end of swing arm 7 is fixed, the front end of rear beam seat 8 is fixedly connected with the top of swing arm 7, the rear end spring-damper of rear beam seat 8 supports, back rest roller 9 is arranged on rear beam seat 8, back rest roller 9 walked around by warp thread 10, the swing of back rest roller 9 and the acting in conjunction of spring-damper 11, warp thread is made not to be stretched and to keep identical tension.
When the power from loom drives power transmission shaft 1 to rotate, power transmission shaft 1 drives the eccentric bushing 2 be fixedly connected with it to rotate by clamping ring 5, and then drive the joint 3 of eccentric bushing 2 periphery to move forward and backward with the eccentric throw that eccentric bushing is double by the rolling of rolling bearing 6, connecting rod 4 also seesaws thereupon, the total length of connecting rod 4 can have right-and-left threaded adjusting bolt 12 respectively by rotation two ends and regulate, thus can regulate the original position that back rest roller 8 swings; The other end of connecting rod 4 drives swing arm 7 with fixing point D for centre swinging, along with the swing of swing arm 7, and beam seat 8 and back rest roller 9 together anterior-posterior translation (swing arm 7 is fixedly connected with rear beam seat 8 at the E point of D point below) after driving; In present embodiment, in the lower end of swing arm 7, upper and lower multiple screw can also be set, the rear end of connecting rod is connected with swing arm 7 by the screw (A with the B position in such as Fig. 1) that these positions are different, the amplitude of fluctuation of swing arm 7 can be changed, and then change the oscillating quantity (oscillating quantity of back rest roller 9 is larger above swing arm 7) of back rest roller 9 on rear beam seat 8; In addition, the oscillating quantity of back rest roller 9 also can be adjusted by the eccentric amount e of eccentric sleeves 2, and eccentric amount e is larger, and oscillating quantity is larger.Above process implementation loom fell is to the adjustment of the spacing of back rest roller 9.
In above-mentioned whole process, warp thread 10 is from opening to remaining silent whole process, the length of warp thread 10 can remain unchanged, as Fig. 3, the fell of loom is positioned at a point, shedding position is at b point, loom is when remaining silent, warp length is ac(a, b, c point-blank), a point invariant position during loom opening, the length of warp thread 10 is ab+bc ', because on back rest roller 9 during opening, the position of c point moves forward along with the forward rocking motion of back rest roller 9, namely original c point moves forward to c ', when this makes it possible to keep opening, the length ab+bc ' of warp thread 10 is substantially equal with the length ac of warp thread when remaining silent 10, namely warp thread 10 is not elongated when opening, effectively prevent warp thread 10 from damaging and reducing cracked ends.
It is worth mentioning that, the installation site of eccentric bushing 2 want to ensure the swaying direction of back rest roller 9 and opening time consistent, namely during loom opening back rest roller 9 foremost, when loom is remained silent, back rest roller 9 is in the end held, theoretically in whole opening process because the swing of back rest roller 9 is synchronous with loom opening, thus the elongation of warp thread 10 or tension force substantially no longer affect by opening, should be to keep constant, so can effectively prevent warp thread 10 from damaging and cracked ends.
Above-mentioned embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the utility model Spirit Essence or modification, all should be encompassed within protection domain of the present utility model.
Claims (2)
1. the oscillating back rest of a loom, it is characterized in that, comprise power transmission shaft (1), eccentric bushing (2), joint (3), connecting rod (4), swing arm (7), rear beam seat (8) and back rest roller (9), described power transmission shaft (1) is fixedly connected with eccentric bushing (2), the front end of joint (3) is connected by rolling bearing (6) with eccentric bushing (2), the rear end of joint (3) is fixedly connected with by adjusting bolt (12) with the front end of connecting rod (4), the rear end of connecting rod (4) and the lower end of swing arm (7) are rotationally connected, the upper end of swing arm (7) is fixed, the front end of rear beam seat (8) is fixedly connected with the top of swing arm (7), the rear end spring-damper (11) of rear beam seat (8) supports, back rest roller (9) is arranged on rear beam seat (8).
2. the oscillating back rest of loom according to claim 1, is characterized in that, described power transmission shaft (1) is fixedly connected with eccentric bushing (2) by clamping ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861483.XU CN204385402U (en) | 2014-12-31 | 2014-12-31 | The oscillating back rest of loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861483.XU CN204385402U (en) | 2014-12-31 | 2014-12-31 | The oscillating back rest of loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204385402U true CN204385402U (en) | 2015-06-10 |
Family
ID=53358135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861483.XU Expired - Fee Related CN204385402U (en) | 2014-12-31 | 2014-12-31 | The oscillating back rest of loom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204385402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265378A (en) * | 2018-04-03 | 2018-07-10 | 青岛天集团红旗纺织机械有限公司 | A kind of water-jet loom bilateral active type loose warp device and water-jet loom |
-
2014
- 2014-12-31 CN CN201420861483.XU patent/CN204385402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265378A (en) * | 2018-04-03 | 2018-07-10 | 青岛天集团红旗纺织机械有限公司 | A kind of water-jet loom bilateral active type loose warp device and water-jet loom |
| CN108265378B (en) * | 2018-04-03 | 2023-08-15 | 青岛天一红旗纺机集团有限公司 | Bilateral active warp loosening device of water-jet loom and water-jet loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20181231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |