CN211112478U - Punching and twisting automatic stop device of rapier loom - Google Patents
Punching and twisting automatic stop device of rapier loom Download PDFInfo
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- CN211112478U CN211112478U CN201921323619.0U CN201921323619U CN211112478U CN 211112478 U CN211112478 U CN 211112478U CN 201921323619 U CN201921323619 U CN 201921323619U CN 211112478 U CN211112478 U CN 211112478U
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Abstract
The utility model discloses a punching and twisting automatic stop device of a rapier loom, which comprises a warp stop automatic stop device and a punching and twisting detection device, wherein the punching and twisting detection device is connected with a signal detection device of the warp stop automatic stop device in parallel; the punching and twisting detection device comprises a conductive wire, a conductive rod and an elastic device; the conductive wire and the conductive rod are arranged between the back beam of the loom and the warp stop frame at intervals, and the conductive wire is close to the back beam of the loom; the conductive rods divide the warps into an upper layer and a lower layer, and the conductive wires are positioned between the upper-layer warps and the lower-layer warps; the two ends of the conductive wire are connected with the elastic devices; the elastic device and the conductive rod are both fixed on the loom body in an insulating way. The punching and twisting automatic stop device of the rapier loom can reduce the influence of the punching and twisting yarns on weaving, detect the punching and twisting yarns in time, avoid the occurrence of punching and twisting defects on the fabric, reduce the broken end rate of warp yarns and improve the quality and the grade of the fabric.
Description
Technical Field
The utility model relates to a stop motion of loom, in particular to a punching and twisting stop motion of rapier loom.
Background
The weaving machine is widely applied, can be suitable for weaving different types of yarns and accounts for a great proportion of the prior fabric production. The most important thing for weaving is to ensure the stability of warp feeding, to make the warp keep constant tension, to weave the needed fabric pattern according to the designed organization and weft. Due to different fiber raw material compositions of the yarns or different warp densities, during weaving, problems of warp yarns in the warp feeding process can cause various defects of the fabric. One is the defect of the punching and twisting, which is formed by the fact that the adjacent warp yarns are hooked to form the punching and twisting yarn. The punching skein moves forward from the back beam to the machine along with weaving, is blocked by the warp stop sheet, and the tension gradually increases to leave a streak on the fabric. Then the punching skein is pulled to a critical value and is separated or broken, the warp yarns separated by the punching skein are looser than the warp yarns woven normally, and the excessively loose warp yarns are gradually woven into the fabric, so that the punching skein defect is formed. Or the broken warp yarn is rejoined to leave joint traces in the fabric, so that the defect of broken ends is the defect of the largest weaving formation.
The defects of the punching and twisting usually appear in the fabric woven by the fine yarns, particularly when real silk is used as warp yarns. The reason is that the real silk fiber has low fineness, the arrangement density of the warp yarns is high during weaving, and if the surface of the fiber contains hook grooves, the adjacent warp yarns are easy to hook to form the punching skein. The rapier loom is a commonly used loom for weaving real silk fabrics, the yarn punching and twisting defect is a very common silk surface defect on the rapier loom, the problem of yarn punching and twisting is solved, the quality and the grade of the fabric can be improved, and the yarn punching and twisting breakage rate is reduced, so that the time waste of yarn splicing is reduced, and the running efficiency of the rapier loom is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the sick fault problem of dashing the hank of surface fabric, provide a rapier weaving machine's dashing hank stop motion, improve the quality and the grade of surface fabric, reduce simultaneously and dash hank yarn broken end rate.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
a punching and twisting automatic stop device of a rapier loom comprises a warp stop automatic stop device and a punching and twisting detection device, wherein the punching and twisting detection device is connected with a signal detection device of the warp stop automatic stop device in parallel; the punching and twisting detection device comprises a conductive wire, a conductive rod and an elastic device; the conductive wire and the conductive rod are arranged between the back beam of the loom and the warp stop frame at intervals, and the conductive wire is close to the back beam of the loom; the conductive rods divide the warps into an upper layer and a lower layer, and the conductive wires are positioned between the upper-layer warps and the lower-layer warps; the two ends of the conductive wire are connected with the elastic devices; the elastic device and the conductive rod are both fixed on the loom body in an insulating way. And after the warp yarns are lifted by the heald frame to be divided into an upper layer and a lower layer, the conductive wires and the conductive rods are placed into the heald frame, the heald frame is restored, and the warp yarns return to the heald leveling position. At the moment, the warp yarn between the conductive rod and the back beam forms a triangular area, the hooking state of part of the punching skein can be effectively forked, the punching skeins which are difficult to separate cannot be layered up and down, and the hooking position drives the conductive wire to move towards the conductive rod along with the warp feeding process; the elastic device ensures that the conductive wire can be suspended and straightened, and can be restored to the original position after the flushing skein is removed.
Further, the elastic device is a spring or an elastic rope.
Furthermore, the conductive wire is a copper wire or a stainless steel wire with the fineness of 0.5-0.8 mm, the diameter of the conductive rod is a stainless steel conductive rod with the diameter of 1.8-2 cm, the conductive rod and the stainless steel conductive rod are both arranged perpendicular to the warp yarns, and the length of the conductive rod exceeds the width of the warp yarns. The conductive wire is not easy to be too thin and too thick, the conductive wire is easy to break when being too thin, and the conductive wire is difficult to bend when being too thick and is difficult to contact with the stainless steel twisted rod.
Further, the distance between the conductive wire and the conductive rod is 5-10 cm. The distance is determined by the strength of the yarn, which is low and the distance should be shorter, reducing the contact time of the wire and the skein and preventing yarn breakage.
Furthermore, the signal detection device of the warp stop motion device and the signal detection device of the warp stop motion device are connected in parallel through a lead.
Further, the automatic stop device for the winching further comprises an indicating signal lamp.
The utility model has the advantages that: the punching and twisting self-stopping device of the rapier loom can reduce the influence of the punching and twisting yarns on weaving, detect the punching and twisting yarns in time, stop the operation of the loom and prompt by a signal lamp, and is convenient for workers to quickly remove the punching and twisting yarns to enable the loom to recover the working state. The method can avoid the fabric from suffering from the punching and twisting defects by detecting the punching and twisting yarns, reduce the end breakage rate of the warp yarns and improve the quality and the grade of the fabric.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram showing the operation of a punching and twisting detection device and a warp stop motion device connected in parallel;
FIG. 2 is a view showing the positional relationship between the punch-twist detecting device and the back rest and warp stop of the loom;
FIG. 3 shows a side view of the punch skein detection device without punch skein;
FIG. 4 shows a side view of the punch skein detection device with the punch skein;
reference numbers in the figures: 1-conductive filaments; 2-a conductive rod; 3-an elastic device; 4-a wire; 5-punching and skeining; 11-rear beam; 12-warp stop frame
Detailed Description
The technical solution of the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1-4, the punching and twisting automatic stop device of the rapier loom is used for fabric weaving when real silk is used as warp yarns, and comprises a warp breakage automatic stop device and a punching and twisting detection device. The copper wire is selected for use as the conductive wire 1 of this embodiment, and the stainless steel conducting rod is selected for use as the conducting rod 2, and the spring is selected for use as the resilient means 3.
The warp stop motion device consists of three parts of detection, control and execution controlled by a computer, and the principle is as follows: the automatic warp stop detector consists of a warp stop sheet, a positive electrode and a negative electrode which are insulated from each other, and is arranged on a warp stop frame and provided with an indicating signal lamp. The warp stop signal output by the detection device is converted into an interrupt application signal of the microprocessor through the counter, and the microprocessor immediately switches to sampling and judging the warp stop signal after receiving the interrupt application signal. If the warp stop signal can be maintained for a period of time, the microprocessor will send out a stop command at the corresponding spindle moment according to the set stop spindle position angle (the spindle position angle signal is sent out by the encoder on the spindle and is input to the microprocessor through the interface as the time basis for various action controls) and the last warp stop brake time angle recorded in the memory, and the driving circuit starts to work, so that the electromagnetic brake brakes the loom and stops at the preset stop spindle position angle. The angle is that the warp is in a heald position, the tension of the warp is minimum, and the plastic deformation of the warp in the shutdown process is favorably reduced, so that the defects of weft crosspieces on the fabric are avoided. The loom stops, and the indicator light lights up to remind the staff.
The punching and twisting detection device comprises a copper wire with the fineness of 0.5 mm, a stainless steel conducting rod with the diameter of 1.8 cm and a spring. The copper wires and the stainless steel conducting rods are arranged between the loom back beam 11 and the warp stop frame 12 at intervals, the copper wires are close to the loom back beam 11, and the distance between the copper wires and the warp stop frame is 5 cm. After the warp yarns are lifted by the heald frame to be divided into an upper layer and a lower layer, the copper wires and the stainless steel conducting rods are placed, the heald frame is restored, and the warp yarns return to the heald leveling position. At this time, the warp yarns between the stainless steel conductive rod and the back beam 11 form a triangular area, and the copper wires are positioned between the warp yarns layered up and down. The copper wire and the stainless steel conducting rod are both vertically arranged with the warp and the length of the copper wire exceeds the width of the warp, springs are connected with two ends of the copper wire, and the springs and the stainless steel conducting rod are both fixed on the loom body in an insulating mode.
One end of each of the copper wire and the stainless steel conducting rod is connected with a conducting wire 4, and the other end of each conducting wire 4 is connected with the positive pole and the negative pole of the warp stop motion detection device, so that the control and execution parts of the punching and twisting detection device and the warp stop motion device are connected to form the punching and twisting stop motion device, and the punching and twisting stop motion function is realized.
As real silk is used as warp, the fineness of the copper wire, the stainless steel conductive rod and the distance between the copper wire and the stainless steel conductive rod are not too high, the tension of the real silk is reduced, and the situation of warp breakage is avoided. The spring is selected from a thin-loop spring, and the tension on the punching skein 5 is ensured to be as small as possible.
In the weaving process, real silk is conveyed forwards from the back beam 11 of the rapier loom to the rapier loom, a triangular area is formed between the back beam 11 and the stainless steel conducting rod, the adjacent real silk is divided into an upper layer and a lower layer, the hooking state of the punching skein 5 of the effective forked part is realized, and the punching and skeining conditions of the real silk are reduced. The difficult-to-separate punching and twisting yarn 5 can drive the copper wire to move towards the stainless steel conducting rod until the copper wire and the stainless steel conducting rod touch a switch-on circuit, the punching and twisting detection device sends a warp stop signal, and the control and execution part of the warp stop motion device is moved to work, so that the loom is stopped in time, and the condition that the silk surface has punching and twisting defects is avoided. After the worker releases the punching skein 5, the copper wire is restored to the original position under the elastic action of the spring, and the next punching skein detection is prepared.
This dashing of rapier weaving machine hank stop motion can reduce and dash hank 5 to the influence of weaving, in time detects out and dashes hank 5, stops the loom operation and with the signal lamp suggestion, makes things convenient for the staff to remove fast and dashes hank 5 and make the loom resume operating condition. The method can avoid the fabric from suffering from the punching and twisting defects by detecting the punching and twisting yarns 5, reduce the end breakage rate of the warp yarns and improve the quality and the grade of the fabric.
Example two
Referring to fig. 1 to 4, the contents of this embodiment and embodiment 1 are substantially the same, and the same contents are not repeated.
The main difference between this embodiment and embodiment 1 is that this embodiment is used for fabric weaving when ordinary twisted yarns are used as warp yarns. The fineness of the copper wire is 0.8 mm, the diameter of the stainless steel conducting rod is 2 cm, and the distance between the stainless steel conducting rod and the stainless steel conducting rod is 10 cm.
The strength of the twisted yarns is improved, and the tension born by the punching skein 5 is correspondingly improved, so that the fineness of the copper wires and the diameter of the stainless steel conducting rod can be increased, the time for the punching skein 5 to be separated by itself can be prolonged by increasing the distance, the condition that the loom is stopped automatically due to the fact that the punching skein 5 can be separated is reduced, and the operation efficiency of the loom is improved.
EXAMPLE III
Referring to fig. 1 to 4, the contents of this embodiment and embodiment 1 are substantially the same, and the same contents are not repeated.
The main difference between this example and example 1 is the enlargement of the shell fabric weave when all yarns are warp yarns, replacing the copper wires with stainless steel wires and replacing the springs with bungee cords.
The copper wire is high in price, and the cost can be reduced by using the stainless steel wire. The stainless steel wire is moved to the stainless steel conductive rod by the punching hank yarn 5, the spring is fixed in length and is provided with a certain elasticity, the needed elasticity of warps with different strengths is different, springs with various specifications are prepared to provide selection, and the trouble of using the elastic rope can be avoided. The elastic rope can control the length according to actual needs, and the elastic rope can achieve the needed elastic force on the stainless steel wire, and is more convenient and faster.
Of course, the fineness of the stainless steel wires and the diameter of the stainless steel conductive bars are set according to the specific warp strength, and the spacing between the stainless steel wires and the stainless steel conductive bars is not illustrated here.
Example four
Referring to fig. 1 to 4, the contents of this embodiment and embodiment 1 are substantially the same, and the same contents are not repeated.
The main difference between the embodiment and the embodiment 1 is that the punch-twisting detection device is provided with a separate indicating signal lamp, and the same indicating signal lamp is not required to be shared with the detection device of the warp stop motion device, so that the worker can find the cause of the stop motion more conveniently. The indicating signal lamp is used for feeding back the punching and twisting information and is in a conventional configuration, so that the drawing is not needed.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above-mentioned embodiment, therefore, the present invention is not limited to the above-mentioned specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a sword loom's dashes hank stop motion which characterized in that: the warp stop motion device comprises a warp stop motion device and a punching and twisting detection device, wherein the punching and twisting detection device is connected with a signal detection device of the warp stop motion device in parallel; the punching and twisting detection device comprises a conductive wire, a conductive rod and an elastic device; the conductive wire and the conductive rod are arranged between the back beam of the loom and the warp stop frame at intervals, and the conductive wire is close to the back beam of the loom; the conductive rods divide the warps into an upper layer and a lower layer, and the conductive wires are positioned between the upper-layer warps and the lower-layer warps; the two ends of the conductive wire are connected with the elastic devices; the elastic device and the conductive rod are both fixed on the loom body in an insulating way.
2. The automatic stop motion of the punching and twisting of the rapier loom according to claim 1, wherein: the elastic device is a spring or an elastic rope.
3. The automatic stop motion of the punching and twisting of the rapier loom according to claim 1, wherein: the conductive wire is a copper wire or a stainless steel wire with the fineness of 0.5-0.8 mm, the diameter of the conductive rod is a stainless steel conductive rod with the diameter of 1.8-2 cm, the conductive rod and the stainless steel conductive rod are both arranged perpendicular to the warp yarns, and the length of the conductive rod exceeds the width of the warp yarns.
4. The automatic stop motion of the punching and twisting of the rapier loom according to claim 1, wherein: the distance between the conductive wire and the conductive rod is 5-10 cm.
5. The automatic stop motion of the punching and twisting of the rapier loom according to claim 1, wherein: and the signal detection device of the punching and twisting detection device and the signal detection device of the warp stop motion device are connected in parallel through a lead.
6. The automatic stop motion of the punching and twisting of the rapier loom according to claim 1, wherein: the automatic stop device for the twisting machine further comprises an indicating signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921323619.0U CN211112478U (en) | 2019-08-15 | 2019-08-15 | Punching and twisting automatic stop device of rapier loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921323619.0U CN211112478U (en) | 2019-08-15 | 2019-08-15 | Punching and twisting automatic stop device of rapier loom |
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| Publication Number | Publication Date |
|---|---|
| CN211112478U true CN211112478U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921323619.0U Active CN211112478U (en) | 2019-08-15 | 2019-08-15 | Punching and twisting automatic stop device of rapier loom |
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| CN (1) | CN211112478U (en) |
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- 2019-08-15 CN CN201921323619.0U patent/CN211112478U/en active Active
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