CN111118707B - Intermittent let-off device of towel loom - Google Patents
Intermittent let-off device of towel loom Download PDFInfo
- Publication number
- CN111118707B CN111118707B CN202010070147.3A CN202010070147A CN111118707B CN 111118707 B CN111118707 B CN 111118707B CN 202010070147 A CN202010070147 A CN 202010070147A CN 111118707 B CN111118707 B CN 111118707B
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- warp
- toothed belt
- area
- toothed
- wheel
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/06—Warp let-off mechanisms
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/06—Warp let-off mechanisms
- D03D49/10—Driving the warp beam to let the warp off
Abstract
The invention discloses an intermittent let-off device of a towel loom, which adopts an intermittent tooth-shaped belt type transmission mode to control the rotation of a wool weaving shaft. When the gear area is arranged, the wool weaving shaft is in positive transmission and is used for terry; in the toothless area, the wool weaving shaft rotates in a depolarized mode under the action of the winding force, the same warp yarns are synchronously sent out with the ground warp shaft, and fuzzing is avoided. The mechanism is simple, the motion is stable, the reliability is high, the maintenance-free performance is good, the installation and debugging are easy, the intuition is good, and the energy consumption is low.
Description
Technical Field
The invention belongs to the field of weaving devices, and particularly relates to an intermittent let-off device of a towel loom.
Background
The towel fabric needs to be woven by adopting double shafts in the weaving principle, namely a large warp let-off quantity, a hair shaft for terry and a ground shaft with normal warp let-off quantity. The pile warp beam having a large warp let-off amount has a larger warp length than the ground warp beam and is used as a terry.
In towel weaving, a traditional mechanical type warp beam let-off mechanism adopts a ratchet wheel and pawl (support head) type let-off mechanism to actively drive a wool weaving shaft to send out wool warp yarns. In addition to the raised area, there is a decorative satin crotch, and since there is no pile in the satin crotch area, the pile warp feeding mechanism needs to stop the active warp feeding and keep the simultaneous warp feeding with the ground warp.
When the let-off needs to be stopped, the pawl (the stretching head) is controlled to lift, the stretching action is not generated on the ratchet wheel, so that the active transmission action of the ratchet wheel on the wool warp beam through the transmission mechanism is stopped, at the moment, the sending-out of the wool warp depends on the coiling motion of a coiling roller of the loom, the wool warp beam is dragged to be passively unwound and sent out by the weaving shaft, the wool warp keeps synchronous with the warp sent out by the ground warp beam, the warp with the same length is sent out, at the moment, no terry appears in a satin crotch area until the satin crotch area is finished, and when the wool warp enters a terry area, the stretching action is generated on the ratchet wheel again by controlling the pawl (the stretching head) to fall, so that the positive transmission action of the ratchet wheel on the wool warp beam is recovered through the transmission mechanism.
The let-off mode of the ratchet wheel and the pawl can generate impact abrasion due to the supporting action of the pawl on the ratchet wheel, and is not suitable for a high-speed loom.
In addition, there is a towel let-off method using a ratchet and a pawl, and a let-off method using a servo motor.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides an intermittent let-off device of a towel loom.
The technical scheme is as follows: an intermittent let-off device of a towel loom comprises a lower toothed belt wheel, an intermittent toothed belt, a toothed wheel, a chain wheel of a wool warp beam, a ground warp beam, a guide rod of a warp stop frame, a warp sheet, a heald frame and a take-up roller;
the motor drives a toothed belt wheel through a speed reducer, the toothed belt wheel drives an intermittent toothed belt, when a toothed area I rotates anticlockwise to be meshed with outer teeth of the toothed belt with through teeth, the toothed wheel is driven to rotate clockwise through inner teeth of the toothed belt, when the toothed belt wheel rotates, a chain wheel coaxial with the toothed belt wheel is driven to rotate, a hair warp beam chain wheel is driven through a chain, the hair warp beam chain wheel drives a hair warp beam coaxial with the hair warp beam to actively unwind and rotate clockwise, and hair warp yarns are sent out; at the guide rod of the warp stop frame, the ground warp yarns which rotate anticlockwise and are unwound from the ground warp shaft are converged into a warp sheet, the warp let-off quantity of the wool warp is larger than that of the ground warp, the warp is divided into an upper layer and a lower layer by a warp heald frame to form a shed, and then the shed is formed by weft insertion, long and short beating-up and winding to form a terry towel fabric;
when the toothless area II of the interrupted toothed belt rotates anticlockwise to the outer teeth of the toothed belt with the through teeth, because of toothless, the toothed wheel cannot be driven to rotate to drive the wool weaving shaft to rotate actively, wool warp yarns are sent out, the wool warp shafts can only be dragged by a winding roller of the fabric, the wool warp shafts are unwound passively to release the warp yarns, and the speed is synchronous with the ground warp yarns;
at the guide rod of the warp stop frame, the ground warp yarns are converged with the ground warp yarns which are unwound by the ground warp shaft in a counterclockwise rotating mode, the warp feeding amount of the wool warp yarns is the same as that of the ground warp yarns, a loop area cannot be formed, namely a satin crotch area is formed, and the wool warp yarns and the ground warp yarns cannot enter the terry area until the toothed area I of the intermittent toothed belt enters the terry area.
As an optimization: the length control of the satin crotch area without fluffing can be adjusted by increasing or decreasing the length of the toothless area, when the length of the toothless area II is increased, the satin crotch area without fluffing is increased, otherwise, the length is decreased.
As an optimization: the length of the loop area is then determined by the length of the toothed section i, the longer the length, the longer the loop area.
As an optimization: the length of the toothed zone is achieved by increasing or decreasing the number of teeth on the toothed belt.
As an optimization: the teeth of the toothed belt are inserted by a movable sleeve method, each movable tooth is inserted between the upper and lower bottom plates of the outer toothed belt and fixed by a set screw, a reinforcing rib is arranged between the upper and lower bottom plates of the toothed belt to increase the strength of the toothed belt, and continuous teeth which are formed in one step are arranged on the inner side of the toothed belt and are used for being meshed with the teeth of the upper and lower toothed belt wheels to play a role in transmission.
Has the advantages that: the invention adopts an interrupted tooth-shaped belt type transmission mode to control the rotation of the wool weaving shaft. When the gear area is arranged, the wool weaving shaft is in positive transmission and is used for terry; in the toothless area, the wool weaving shaft rotates in a depolarized mode under the action of the winding force, the same warp yarns are synchronously sent out with the ground warp shaft, and fuzzing is avoided. The mechanism is simple, the motion is stable, the reliability is high, the maintenance-free performance is good, the installation and debugging are easy, the intuition is good, and the energy consumption is low.
Drawings
FIG. 1 is a schematic structural view of a let-off mechanism of the present invention; the warp knitting machine comprises a lower toothed belt wheel 1, an intermittent toothed belt 2, a toothed belt 3, a toothed wheel 4, a chain wheel 5, a chain 6, a chain 7, a pile warp beam chain wheel 8, a pile warp beam 9, a pile warp beam 10, a ground warp beam 11, a ground warp beam 12, a warp stop guide rod 13, a warp sheet 14, a heald frame 14', a heald frame 15, a terry towel fabric 16 and a take-up roll.
FIG. 2 is a schematic view of a looper inlay type toothed belt of the present invention; wherein, 01, movable teeth, 02, an upper bottom plate, a lower bottom plate, 03, reinforcing ribs, 04, positioning screws and 05 continuous teeth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Examples
The key parts of the mechanism of the invention are driven by gears and toothed belt wheels, so the movement is stable and reliable, the transmission efficiency is high, the energy is saved, and the debugging is easy.
1. Warp beam let-off motion
As shown in figure 1, a motor drives a lower toothed belt wheel 1 through a speed reducer, the toothed belt wheel drives an intermittent toothed belt 2, when a toothed area I rotates anticlockwise to be meshed with outer teeth of a toothed belt 3 with through teeth (namely all the teeth on the toothed belt), the inner teeth of the toothed belt drive a toothed wheel 4 to rotate clockwise, when the toothed belt wheel rotates, a chain wheel 5 coaxial with the toothed belt is driven to rotate, a hair warp beam chain wheel 7 is driven through a chain 6, the hair warp beam chain wheel drives a hair warp beam 8 coaxial with the hair warp beam to actively unwind clockwise, and the hair warp 9 is sent out. At the position of a guide rod 12 of the warp stop frame, the ground warp yarns 11 which rotate anticlockwise and are unwound from a ground warp shaft 10 are converged into a warp sheet 13, the warp let-off quantity of the wool warp is larger than that of the ground warp at the moment, the warp is divided into an upper layer and a lower layer by warp heald frames 14 and 14' to form a shed, and then the shed is formed by weft insertion, long and short beating-up and reeling-up to form a terry towel fabric 15.
When the toothless area II of the interrupted type toothed belt rotates anticlockwise to the outer teeth of the toothed belt 3 with the through teeth, the toothless area can not drive the toothed wheel 4 to rotate and drive the wool weaving shaft to rotate actively, the wool warp yarns 9 are sent out, the wool warp shafts can only depend on the dragging of the winding roller 16 of the fabric 15, the wool warp shafts unwind passively to release the warp yarns, and the speed is synchronous with the ground warp yarns.
At the guide rod of the warp stop frame, the ground warp yarns are converged with the ground warp yarns which are unwound by the ground warp beam 10 in a counterclockwise rotating mode, the let-off quantity of the wool warps is the same as the let-off quantity of the ground warp yarns, and a looped pile area cannot be formed, namely a satin crotch area is formed until a toothed area I of the intermittent toothed belt enters the looped pile area.
2. Length control of the satin crotch and loop areas
(1) The length control of the satin crotch area without fluffing can be adjusted by increasing or decreasing the length of the toothless area, when the length of the toothless area II is increased, the satin crotch area without fluffing is increased, otherwise, the length is decreased.
(2) The length of the loop area is then determined by the length of the toothed section i, the longer the length, the longer the loop area.
(3) The length of the toothed zone is achieved by increasing or decreasing the number of teeth on the toothed belt.
Therefore, the invention can conveniently and randomly change the ratio of the satin crotch area to the loop area.
3. Adjustment of hair length
The height of the terry loop of the terry towel fabric is measured by the "pile factor", i.e. the pile factor is the length of the pile warp: the length of the ground warp. The hair multiple adjusting mode of the invention is as follows: the transmission ratio of the toothed pulley 1 to the warp beam 10 is changed because the toothed pulley 1 finally drives the warp beam 8 through the transmission system.
The difference value of the let-off speed of the wool warp yarns and the warp yarns of the ground warp yarns can be changed by changing the tooth number of the toothed belt wheel 1, and the wool times are changed.
4. Mounting of teeth of toothed belts
The teeth of the toothed belt are inserted by a loop, each movable tooth 01 is inserted between the upper and lower bottom plates 02 of the outer toothed belt and fixed by a positioning screw 04, a reinforcing rib 03 is arranged between the upper and lower bottom plates of the toothed belt to increase the strength of the toothed belt, and the inner side of the toothed belt is provided with continuous teeth 05 which are formed in one step and used for being meshed with the teeth of the upper and lower toothed belt wheels in the figure 1 to play a transmission role.
The intermittent toothed belt of the loop inserting method is convenient for changing the number and the position of teeth, and can be conveniently taken out or adjusted according to the process requirements.
Claims (1)
1. An intermittent let-off device of a towel loom, characterized in that: comprises an upper toothed belt wheel, a lower toothed belt wheel, an intermittent toothed belt, a toothed wheel, a chain, a hair warp beam chain wheel, a hair warp beam, a ground warp beam, a warp stopping frame guide rod, a warp sheet, a heald frame and a take-up roller;
the motor drives the lower toothed belt wheel through the reducer, the upper toothed belt wheel and the lower toothed belt wheel drive the intermittent toothed belt, when a toothed area I rotates anticlockwise to be meshed with outer teeth of the toothed belt with through teeth, the inner teeth of the toothed belt drive the toothed wheel to rotate clockwise, and when the toothed wheel rotates, the chain wheel coaxial with the toothed wheel is driven to drive the hair warp beam chain wheel through the chain, the hair warp beam chain wheel drives the hair warp beam coaxial with the hair warp beam to actively unwind and rotate clockwise, and hair warp yarns are sent out; at the guide rod of the warp stop frame, the ground warp yarns which rotate anticlockwise and are unwound from the ground warp shaft are converged into a warp sheet, the warp let-off quantity of the wool warp is larger than that of the ground warp, the warp is divided into an upper layer and a lower layer by a warp heald frame to form a shed, and then the shed is formed by weft insertion, long and short beating-up and winding to form a terry towel fabric;
when the toothless area II of the interrupted type toothed belt rotates anticlockwise to the outer teeth of the toothed belt with through teeth, because of toothless, the toothed wheel cannot be driven to rotate to drive the pile warp beam to rotate actively, the pile warp yarns are sent out, the pile warp beam can only be dragged by a winding roller of the fabric, the pile warp beam unwinds passively to release the warp yarns, and the speed is synchronous with the ground warp yarns;
at the guide rod of the warp stop frame, the ground warp yarns are converged with the ground warp yarns which are unwound by the ground warp shaft in the anticlockwise rotation mode, the warp feeding amount of the wool warp yarns is the same as that of the ground warp yarns, a loop area cannot be formed, namely a satin crotch area is formed, and the wool warp yarns enter the terry area again until the toothed area I of the intermittent toothed belt enters the terry area;
the length control of the satin crotch area without fluffing is adjusted by increasing or decreasing the length of the toothless area, when the length of the toothless area II is increased, the satin crotch area without fluffing is increased, otherwise, the length of the satin crotch area is decreased;
the length of the looped pile area depends on the length of the toothed area I, and the longer the length is, the longer the looped pile area is;
the length of the toothed area is realized by increasing or decreasing the number of teeth on the intermittent toothed belt;
the teeth of the intermittent toothed belt are inserted by a loop insertion method, each movable tooth is inserted between the upper bottom plate and the lower bottom plate of the intermittent toothed belt on the outer side and fixed by a positioning screw, a reinforcing rib is arranged between the upper bottom plate and the lower bottom plate of the intermittent toothed belt to increase the strength of the intermittent toothed belt, and continuous teeth which are formed at one time are arranged on the inner side of the intermittent toothed belt and are used for being meshed with the teeth of the upper toothed belt wheel and the lower toothed belt wheel to play a transmission role.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070147.3A CN111118707B (en) | 2020-01-21 | 2020-01-21 | Intermittent let-off device of towel loom |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070147.3A CN111118707B (en) | 2020-01-21 | 2020-01-21 | Intermittent let-off device of towel loom |
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| Publication Number | Publication Date |
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| CN111118707A CN111118707A (en) | 2020-05-08 |
| CN111118707B true CN111118707B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010070147.3A Active CN111118707B (en) | 2020-01-21 | 2020-01-21 | Intermittent let-off device of towel loom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113322567B (en) * | 2021-08-03 | 2021-09-24 | 南通荣飞织造有限公司 | Active let-off device of three-dimensional loom |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316840A (en) * | 1993-01-19 | 1994-11-15 | Sulzer Rueti Ag | Method for controlling woven fabric before weaving and loom executing said method |
| CN101736498A (en) * | 2009-12-31 | 2010-06-16 | 王勇 | Wool yarn tension increasing mechanism |
| CN201762526U (en) * | 2010-08-17 | 2011-03-16 | 潍坊怡兴纺织机械设备制造有限公司 | Electronic woolen warp let-off device of rapier towel loom |
| CN105544073A (en) * | 2016-02-05 | 2016-05-04 | 江苏工程职业技术学院 | Constant-linear-velocity warp pacing device for weaving of crinkled crepe fabric |
| CN106192169A (en) * | 2016-09-05 | 2016-12-07 | 江苏工程职业技术学院 | A kind of loom let-off mechanism being alternately produced different three-dimensional bubble crape effect |
| CN108224982A (en) * | 2018-01-17 | 2018-06-29 | 遂昌县睿鼎科技服务有限公司 | A kind of bamboo material drying unit of intermittent delivery |
| CN209162336U (en) * | 2018-11-05 | 2019-07-26 | 天津华凯嘉诚科技有限公司 | A kind of full-automatic sample loom of multifunctional small-size |
-
2020
- 2020-01-21 CN CN202010070147.3A patent/CN111118707B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316840A (en) * | 1993-01-19 | 1994-11-15 | Sulzer Rueti Ag | Method for controlling woven fabric before weaving and loom executing said method |
| CN101736498A (en) * | 2009-12-31 | 2010-06-16 | 王勇 | Wool yarn tension increasing mechanism |
| CN201762526U (en) * | 2010-08-17 | 2011-03-16 | 潍坊怡兴纺织机械设备制造有限公司 | Electronic woolen warp let-off device of rapier towel loom |
| CN105544073A (en) * | 2016-02-05 | 2016-05-04 | 江苏工程职业技术学院 | Constant-linear-velocity warp pacing device for weaving of crinkled crepe fabric |
| CN106192169A (en) * | 2016-09-05 | 2016-12-07 | 江苏工程职业技术学院 | A kind of loom let-off mechanism being alternately produced different three-dimensional bubble crape effect |
| CN108224982A (en) * | 2018-01-17 | 2018-06-29 | 遂昌县睿鼎科技服务有限公司 | A kind of bamboo material drying unit of intermittent delivery |
| CN209162336U (en) * | 2018-11-05 | 2019-07-26 | 天津华凯嘉诚科技有限公司 | A kind of full-automatic sample loom of multifunctional small-size |
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| CN111118707A (en) | 2020-05-08 |
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