CN216304098U

CN216304098U - Slitter edge yarn trapping apparatus and loom

Info

Publication number: CN216304098U
Application number: CN202122168642.0U
Authority: CN
Inventors: 张玉杰
Original assignee: Shandong Rifa Textile Machinery Co Ltd
Current assignee: Shandong Rifa Textile Machinery Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-04-15
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a waste selvage yarn catching device, which comprises: side spray needles for waste selvage yarns; and the catching component is positioned in the extending direction of the weft yarns, the waste selvage yarn side spray needles are used for guiding the waste selvage yarns of the weft yarns into the catching component, and the catching component is used for catching the waste selvage yarns. In the present invention, the waste selvage yarn side needle may terminate the air injection as long as the waste selvage yarn side needle guides the waste selvage yarn into the catching means and the catching means exerts a catching force on the waste selvage yarn. Compared with the technical scheme that the air injection operation of negative pressure stretching and air injection in the prior art can be stopped after the waste selvage yarns are cut off by the scissors, the air injection device can obviously reduce the air injection time, so that the operation time of the air compressor is shortened, and the energy is saved. In addition, the waste selvage side reed is arranged on the sley of the selvage cloth side reed. The driving device for driving the plain selvedge cloth side reed drives the waste selvedge yarn side reed simultaneously. The utility model also discloses a loom.

Description

Slitter edge yarn trapping apparatus and loom

Technical Field

The utility model relates to the technical field of looms, in particular to a waste selvage yarn catching device and a loom.

Background

In the weaving process, waste yarn ends need to be cut off. In the prior art, the waste yarn end is usually sucked by using a negative pressure stretching jet, and then is cut off by scissors. Referring to fig. 1, in fig. 1, 100 is a drawing nozzle, 200 is a scissors, and 300 is a folder. The waste selvage yarns in the drawing figure 1 are straightened under the action of the drawing spray pipe and enter the drawing spray pipe 100, then the waste selvage yarns are cut off by the scissors 200, and finally the weft yarns cut off the waste selvage yarns are folded into the plain selvage cloth by the folder. In the structure diagram of fig. 2, reference numeral 500 is a negative pressure stretching jet, 400 is an air inlet, and 100 is a stretching jet.

From the above description, the waste selvage yarn is drawn completely by the negative pressure drawing jet, and the air jet operation in each period of the negative pressure drawing jet can not be finished until the waste yarn is cut off by the scissors. Therefore, the negative pressure stretch blow requires sufficient air compression gas to be produced by the air compressor, but the power consumption of the air compressor is very large. Thus, the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reduce the operation time of the air compressor, thereby reducing the production cost. In order to achieve the purpose, the utility model provides the following technical scheme:

a waste selvage yarn catching device comprising:

side spray needles for waste selvage yarns;

the catching component is positioned in the extending direction of the weft yarns, the waste selvage yarn side spraying needle is used for guiding the waste selvage yarns of the weft yarns into the catching component, and the catching component is used for catching the waste selvage yarns.

Preferably, the catching assembly comprises a scrap side reed, catching warps penetrate through the scrap side reed, and the catching warps are interwoven to catch the scrap yarns.

Preferably, the waste selvage yarn catching device further comprises a yarn guide roller, and the yarn guide roller is used for guiding the waste selvage cloth formed by the catching warp yarns and the waste selvage yarns into the recovery barrel.

Preferably, a cloth supporting plate is arranged close to the reed on the waste selvage yarn side and used for supporting the captured warps.

Preferably, the slitter edge yarn side reed is arranged on a steel sley of the selvedge fabric side reed.

Preferably, a waste selvage yarn guide groove is formed in the lower portion of the waste selvage yarn side reed, and the waste selvage yarn side spray needle is used for spraying air into the waste selvage yarn guide groove.

Preferably, the catching warp is located above the waste selvage yarn needle or the catching warp is located at a side of the waste selvage yarn needle.

Preferably, the waste selvage yarn side needle includes:

spraying needles;

the needle file, be provided with the admission pipe joint on the needle file, the admission pipe joint with the inner chamber of spray needle communicates with each other, the spray needle is fixed on the needle file, the needle file is fixed on the going part of plain selvedge cloth side reed.

Preferably, the spray needles are arranged obliquely and are inclined towards the direction of the waste selvage yarn guide groove.

Preferably, the air inlet pipe joint is communicated with an air inlet pipe, and the air inlet pipe is an air pipe in the weft insertion air injection pipeline.

Preferably, the catching warp yarn comes from a yarn shaft on the smooth edge cloth side; the catching warp is chemical fiber yarn.

The utility model also discloses a loom which comprises any one of the above waste selvage yarn catching devices.

It can be seen from the above technical solution that: in the present invention, the waste selvage yarn side needle may terminate the air injection as long as the waste selvage yarn side needle guides the waste selvage yarn into the catching means and the catching means exerts a catching force on the waste selvage yarn. Compared with the technical scheme that the air injection operation of the negative pressure stretching and air injection in the prior art needs to be stopped after the waste selvage yarns are cut off by the scissors, the technical scheme of the utility model for arranging the capturing component can obviously reduce the air injection time, so that the operation time of the air compressor is shortened, and the energy is saved.

In addition, the slitter edge yarn side reed and the selvedge fabric side reed can completely run synchronously, so that the slitter edge yarn side reed can be arranged on a sley of the selvedge fabric side reed. The driving device for driving the plain selvedge cloth side reed drives the waste selvedge yarn side reed simultaneously. By the arrangement, the existing resources are fully utilized, and the cost is saved. The waste selvage yarn catching device also has the advantages of saving yarn and having strong adaptability.

Drawings

In order to more clearly illustrate the solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive efforts.

FIG. 1 is a diagram of a state at a certain instant when a slitter edge yarn is drawn by negative pressure drawing jet in accordance with an embodiment of the prior art;

FIG. 2 is a schematic diagram of a negative pressure stretch jet according to an embodiment of the prior art;

FIG. 3 is a top view of a waste selvage yarn catching device according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a waste selvage yarn catching device according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating an instant state when the waste selvage yarn catching device according to an embodiment of the present invention catches a waste selvage yarn;

FIG. 6 is a side view of a waste selvage yarn catching device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a waste selvage yarn needle according to an embodiment of the present invention.

Wherein 100 is a stretching spray pipe, 200 is a pair of scissors, 300 is a hemmer, 400 is an air inlet, and 500 is a negative pressure stretching spray pipe;

the device comprises a waste selvedge yarn side spray needle 1, a catch warp yarn 2, a cloth supporting plate 3, a shear 4, a hemmer 5, a plain selvedge cloth 6, a plain selvedge cloth side cloth supporting plate 7, a waste selvedge yarn side reed 8, a mop plate seat 9, a yarn guide roller 10, a yarn guide roller seat 11, a plain selvedge cloth side reed 12, a sley 13, a frame 14, an air inlet pipe joint 15, a spray needle 16, a needle seat 17, a jackscrew 18 and a shear seat 19.

Detailed Description

The utility model discloses a waste yarn trap device which can shorten the operation time of an air compressor, thereby saving the cost. The utility model also discloses a loom.

The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, during the weaving and beating up process, the weft insertion device will pull out the weft yarns, so that the weft yarns and the warp yarns are arranged in a staggered manner. After the weft insertion is finished, the waste selvage yarns are cut off by scissors, and then the weft yarns with the waste selvage yarns removed are folded back by a folder to form the plain selvage cloth. In the process of cutting off waste selvage yarns, weft yarns are ensured to be in a straightening state, otherwise, the edges of the plain selvage cloth are uneven, and the quality of the plain selvage edges is reduced.

The utility model discloses a waste selvage yarn catching device which comprises a waste selvage yarn side spray needle 1 and a catching assembly. The catching component is positioned in the elongation direction of the weft yarn. The waste selvage side needle 1 is used to inject air to the weft yarn so as to introduce the waste selvage of the weft yarn (the waste selvage in this case refers to the waste selvage of the weft yarn) into the catching unit. The catching component can catch the waste selvage yarns of the weft yarns and form catching force on the waste selvage yarns, and the catching force enables the weft yarns to be in a straightening state.

In the present invention, the waste selvage side needle 1 may end the air injection as long as the waste selvage side needle 1 introduces the waste selvage yarn into the catching means and the catching means once exerts a catching force on the waste selvage yarn. Compared with the technical scheme that the air injection operation of negative pressure stretching and air injection in the prior art can be stopped after the waste selvage yarns are cut off by the scissors, the technical scheme of the utility model for arranging the capturing component can obviously reduce the air injection time, so that the operation time of the air compressor is shortened, and the energy is saved.

The catching component specifically comprises a scrap edge yarn side steel reed 8, and the catching warp 2 penetrates through the scrap edge yarn side steel reed 8. As will be understood by those skilled in the art, the loom includes a plain-selvedge cloth-side reed 12 (reed on the plain-selvedge cloth 6 side), catching warp yarns 2 are inserted into the reed blades of the plain-selvedge cloth-side reed 12, the warp yarns are interwoven during beating-up of the plain-selvedge cloth-side reed 12, and the catching warp yarns 2 are continuously opened and closed during the interweaving. The utility model is beneficial to the characteristic that warps are mutually interwoven to form catching force on the waste selvage yarns. Specifically, the catching warp 2 inserted into the scrap side reed 8 first forms an opening, and then the scrap enters the opening, and along with the operation of the loom, the scrap enters the closed opening, and thus the scrap is clamped.

The slitter edge yarn side reed 8 and the selvedge fabric side reed 12 can completely run synchronously, so that the slitter edge yarn side reed 8 can be installed on the sley of the selvedge fabric side reed 12. The drive means for driving the plain-selvedge-side reed 12 simultaneously drives the slitter-side reed 8. By the arrangement, the existing resources are fully utilized, and the cost is saved.

The loom is operated periodically, with one cycle for every two cycles. Each angle corresponds to a different state of the weaving machine during each cycle. In the art, the state of the plain-selvedge-cloth-side reed during beating-up is generally taken as zero degrees, and then 180 ° when the plain-selvedge-cloth-side reed swings to the weft insertion position. The weft thread is introduced into the negative pressure stretch jet at 200 ° by the weft insertion device. The angle is 360 degrees when the reed on the plain selvedge cloth side is beaten up and 420 degrees when the scissors cut the waste selvedge yarn. At this time, the operation can be stopped only by the negative pressure stretching jet, and the operation can be stopped by the air compressor. The operating time of the air compressor is approximately 220 °.

In the weft insertion device of the present invention, the weft is inserted into the waste selvage side needle 1 at approximately 200 °, and the waste selvage side needle 1 starts operating from 200 °, and the air compressor starts operating, and the waste selvage is caught by the catching warp yarn at approximately 320 °. At the moment, the waste selvage yarn side spray needle 1 can finish the operation, and the air compressor can stop working. The operation time of the air compressor in the present invention is approximately 120 deg.. Compared with the prior art, the operation time of the air compressor can be reduced by 100 degrees.

The waste selvage yarns are only required to be introduced into the catching warps 2, so the inner diameter of the air inlet pipe can be designed to be smaller. For example, in the prior art, an air inlet pipe with an inner diameter of 8mm is required, but in the present invention, an air inlet pipe with an inner diameter of about 5mm is required. In the prior art, the air consumption of an 8mm air inlet pipe is 0.1m³In terms of a/minute. The air consumption of the 5mm air inlet pipe is 0.03m³In terms of a/minute. So, further reduced the energy consumption of air compressor machine.

The weft insertion device on the plain-selvedge fabric 6 side performs weft insertion by injecting gas from the plain-selvedge fabric 6 side needle, and the weft insertion gas injection line supplies a gas source to the plain-selvedge fabric 6 side needle. The diameter of the air pipe in the weft-guiding air-jet pipeline is usually 5mm, which just meets the requirement of the waste selvage yarn side spray needle 1 on an air source, so that one air pipe in the weft-guiding air-jet pipeline can be directly used as an air inlet pipe to be connected to the waste selvage yarn side spray needle 1. Therefore, the existing resources are further fully utilized, and the structure of the waste selvage yarn catching device is simplified.

In order to ensure that the waste selvedge threads are guided in the weft direction, the utility model provides a thread guide groove in the lower part of the reed 8 on the side of the waste selvedge threads, which thread guide groove extends in the weft direction. The waste selvage yarn side spray needle 1 sprays compressed gas into the yarn guide groove. Due to the guiding effect of the yarn guide groove, the compressed gas forms airflow along the weft direction in the yarn guide groove, so that the waste selvage yarns can be guided along the weft direction.

Referring to fig. 7, the waste selvage side nozzle 1 specifically includes a nozzle 16 and a needle seat 17. The needle 16 is fixed on the needle seat 17. An air inlet pipe connector 15 is arranged on the needle seat 17, and the air inlet pipe connector 15 is used for installing an air inlet pipe. The air inlet pipe joint 15 is communicated with a spray needle 16. The needle holder 17 is arranged on the slay 13 of the sley 12 on the selvedge side. In order to fix the air inlet pipe joint 15 conveniently, a jackscrew 18 can be arranged at the side part of the needle seat 17, and the jackscrew 18 enters the needle seat 17 to tightly jack the air inlet pipe joint 15 in the inner cavity of the needle seat 17.

In order to ensure that the maximum amount of gas ejected from the waste selvage side needle 1 can enter the yarn guide groove, the utility model provides an inclined needle 16 of the waste selvage side needle 1, and the needle 16 is inclined toward the yarn guide groove side so as to be closer to the yarn guide groove.

In addition, the utility model is also provided with a cloth supporting plate 3 and a yarn guide roller 10. The cloth supporting plate 3 is arranged close to the reed 8 on the waste selvage yarn side and used for supporting and capturing the warp yarns 2. The yarn guide roller 10 guides the waste selvage cloth, which is formed by interweaving the waste selvage yarns and the catch warp yarns 2, into the recovery bucket.

As can be seen from the above description, the waste selvage yarn catching device of the present invention has the following features in addition to the features of saving energy and making full use of the existing equipment.

Waste selvage yarn is saved: in the process of weft insertion by utilizing negative pressure stretching jet, the waste edge yarn can be ensured to form a stretching effect on the waste edge yarn by the stretching jet pipe only by extending the waste edge yarn into the stretching jet pipe for more than 2 cm. When the negative pressure stretching jet is used, the length of the waste edge yarn is theoretically 7.5cm, and in the actual use process, the waste edge yarn can be better pulled to reach 9-11cm, so that the waste edge yarn is convenient to cut. In the present invention, the catching power of the catching warp 2 is independent of the length of the waste selvage yarn, and the catching power can be applied to the waste selvage yarn as long as the waste selvage yarn can enter the warp. Therefore, the method has lower requirement on the length of the waste selvage yarns, and the length of the waste selvage yarns can reach 5 cm. Therefore, weft yarns of about 2.5cm can be saved.

Next, an example of 24s × 24s × 72/inch × 60/inch × 54 will be described, where the first "24 s" in the calculation formula indicates that the warp yarn has a thickness of 24, the second "24 s" indicates that the warp yarn has a thickness of 24, the "72/inch" indicates the density of the warp yarn, the "60/inch" indicates the density of the weft yarn, and the "54" indicates the width.

The calculation is carried out according to the saving of 2cm, and the weft yarn saved per meter of cloth is as follows:

60 pieces/inch x (100/2.54) × 2cm 47.24 meters, which can be calculated as 47 meters.

Assuming that the material of the capturing warp yarn 2 is the same as that of the weft yarn, and assuming that the number of the capturing warp yarns 2 is 12, 12 meters of the warp yarn are consumed per meter of the cloth.

The pure yarn savings are then: 47 m to 12 m to 36 m.

Knowing that the weight of 24s yarn per kilometer is (584/24) grams, the weight of yarn saved per meter of cloth is: (36/1000) × (584/24) ═ 0.876 g.

Calculated as 450 metres of cloth produced per day, then the daily savings: 0.876 × 450 ≈ 394.2 g ≈ 0.394 kg.

Calculated as 300 days per year, then 100 looms can be saved a year: 300 × 0.394 × 100 ≈ 11820 kg ≈ 11.8 tons.

Calculated as 3 ten thousand yuan per ton of yarn, 11.8 x 3 to 35.4 ten thousand yuan can be saved in one year.

From the above calculations it can be seen that even though the catching warp 2 is consumed, the consumed catching warp 2 is smaller than the saved weft, so that overall a cost saving is still achieved. Note that the material of the capturing warp 2 in the above example is the same as the material of the warp on the plain selvedge fabric 6 side, and if the capturing warp 2 is replaced with a chemical fiber yarn which is inexpensive, the cost saving becomes more significant. The strength of the chemical fiber yarn is sufficient to catch the weft yarn.

Referring to fig. 3, the catching warp 2 may be disposed at the right side of the waste selvage side needle 1, above the waste selvage side needle 1, or even at the left side of the waste selvage side needle 1 to be closer to the scissors 4, so that the length of the waste selvage yarns cut off can be further reduced, thereby further saving the weft. The negative pressure stretching jet in the prior art is limited by a space structure and cannot adjust the position. It should be noted that the scissors 4 are provided between the waste selvage side reed 8 and the selvage side reed 12.

The adaptability is strong: when the negative pressure stretching jet is used, the fly yarn and the sizing agent in the space can easily enter the stretching jet pipe, so that the blockage is caused to the stretching jet pipe. If the drawing nozzle is clogged, the effect of the drawing nozzle on the straightening of the waste selvage yarns is reduced, and the edge portions of the selvage fabric 6 are irregular. In the utility model, no closed structure exists in the waste selvage yarn catching device, so that the problem of any blockage can not occur. Even if the fly and the size fall between the blades of the reed 8 on the waste selvage side, the fly and the size are rubbed off by catching the warp 2.

In addition, the weft yarns may be different in material, and if the negative pressure stretch jet with the same working strength is used, the weft yarns with higher strength may not enter the stretch jet pipe due to higher twist. The catching device is not influenced by weft yarn materials, and can form catching force on weft yarns of different materials.

The utility model also discloses a loom, which comprises the waste selvage yarn catching device, particularly, the waste selvage yarn catching device is any one of the waste selvage yarn catching devices, the waste selvage yarn catching device has the effect, and the loom with the waste selvage yarn catching device also has the effect, so the waste selvage yarn catching device is not repeated in detail.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slitter edge yarn catching device, comprising:

side spray needles for waste selvage yarns;

2. The device for catching waste selvage yarn as claimed in claim 1, wherein the catching assembly comprises a waste selvage side reed, and catching warps are inserted into the waste selvage side reed and interwoven with each other to catch the waste selvage yarn.

3. The waste selvage yarn catching device as claimed in claim 2, further comprising a guide roller for guiding the waste selvage cloth formed by the catching warp and the waste selvage yarn into a recovery bucket.

4. The device for catching waste selvage yarn as in claim 2, wherein a cloth supporting plate is arranged near the reed on the waste selvage yarn side for supporting the catching warp yarns.

5. The scrap yarn catching device in accordance with claim 2 wherein the scrap yarn side reed is disposed on the reed sley of the sleevelet side reed.

6. The device for catching waste selvage yarn as claimed in claim 2, wherein the waste selvage yarn side reed is formed at a lower portion thereof with a waste selvage yarn guide groove, and the waste selvage yarn side squirt needle is adapted to blow air into the waste selvage yarn guide groove.

7. The device for catching waste selvage yarn as claimed in claim 2, wherein the catching warp is located above the waste selvage yarn needle or the catching warp is located at the side of the waste selvage yarn needle.

8. The waste selvage yarn catching device as claimed in claim 6, wherein the waste selvage yarn side squirt needle comprises:

spraying needles;

9. The waste yarn catching device as claimed in claim 8, wherein the needle is arranged obliquely and inclined toward the waste yarn guide groove.

10. The waste yarn catching device as claimed in claim 8 wherein the air inlet pipe joint communicates with an air inlet pipe, the air inlet pipe being an air pipe in a weft insertion air injection line.

11. The waste selvage yarn catching device as claimed in claim 2, characterized in that the catching warp yarn comes from the yarn shaft on the plain cloth side; the catching warp is chemical fiber yarn.

12. A weaving machine comprising a waste selvage yarn catching device according to any one of claims 1 to 11.