Yarn capturing and cutting device

Abstract

The utility model discloses a yarn capturing and cutting device which comprises a yarn capturing mechanism, a yarn sucking mechanism and a yarn cutting mechanism, the yarn capturing mechanism is installed on the side face of the yarn sucking mechanism, and the yarn cutting mechanism is installed on the yarn capturing mechanism. According to the scheme, the structure is simple, the manufacturing cost is low, and yarn cutting work can be completed without an extra power source; the cutter is simple in structure and convenient to disassemble and assemble, easily-damaged blades are easy to replace, the working intensity of mounting and disassembling of workers can be reduced, the working efficiency can be improved, and the later maintenance cost can be reduced; the yarn cutting device is suitable for yarns with different counts, not only can cut yarns with high counts, but also has a better effect on yarns with low counts.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery and equipment, and particularly relates to a yarn catching and cutting device. Background Art

[0002] As a kind of textile, yarn is common in the field of textile technology. It is generally made by twisting single bundles of fibers of different lengths, and is mainly used for weaving, rope making, thread making, knitting, embroidery, etc. In the textile field, in order to facilitate the storage, transportation and feeding of yarn for the next process, the yarn is often wound on a paper tube to form a cheese yarn.

[0003] In order to ensure the consistency of the cheese yarn specifications, when the yarn is wound into a package of a certain form and a certain capacity, the yarn needs to be cut to complete the doffing work. At present, in the textile market, the yarn is mainly cut by driving scissors with an external power source. This method generally has a relatively complex structure, and an additional program is required to control the driving component to cut the yarn, which will not only increase the working intensity of workers, but also further increase the cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a yarn catching and cutting device, hoping to make up for the deficiencies of the prior art and solve all or part of the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A yarn catching and cutting device includes a yarn catching mechanism, a yarn sucking mechanism and a yarn cutting mechanism. The yarn catching mechanism is installed on the side of the yarn sucking mechanism, and the yarn cutting mechanism is installed on the yarn catching mechanism;

[0007] The yarn catching mechanism includes a yarn hooking plate, a pin shaft, a cover plate and a parallel plate. The yarn hooking plate is fixed on the side of the yarn sucking mechanism. The parallel plate is arranged parallel to the yarn hooking plate. The cover plate is arranged between the yarn hooking plate and the parallel plate. The pin shaft sequentially passes through the yarn hooking plate, the cover plate and the parallel plate. The pin shaft plays a positioning role. The yarn hooking plate, the cover plate and the parallel plate are fixedly connected together by bolts. The extending part of the yarn hooking plate bends inward. The yarn hooking operation is completed through the extending part of the yarn hooking plate.

[0008] In an implementation mode that can optimize the foregoing scheme, the extending part of the yarn hooking plate bends inward in an L shape, and a notch is opened in the upper part of the extending part. The L-shaped extending part is convenient for hooking the yarn, making it easier for the yarn to enter the yarn cutting mechanism to complete the yarn cutting operation. Five threaded holes are opened on the side of the yarn hooking plate, which are respectively used for fixing the yarn catching mechanism and the yarn sucking mechanism, fixing the cover plate and the yarn hooking plate, and fixing the yarn cutting mechanism and the yarn hooking plate.

[0009] In an embodiment that can optimize the foregoing solution, the front end of the extension portion is an inclined surface. The inclined surface can reduce the damage of the yarn hooking plate to the yarn and at the same time play a guiding role for the yarn.

[0010] In an embodiment that can optimize the foregoing solution, the yarn suction mechanism is a nozzle seat, and a yarn suction hole is opened at the lower part of the nozzle seat. The nozzle seat is connected to an external suction device through a pipeline, and a negative pressure is formed inward through the yarn suction hole.

[0011] In an embodiment that can optimize the foregoing solution, the bottom edge of the nozzle seat and the edge of the yarn suction hole are rounded. Rounding the edges can further reduce the wear of the device on the yarn.

[0012] In an embodiment that can optimize the foregoing solution, the yarn cutting mechanism includes a left yarn cutting blade, a right yarn cutting blade, a blade mounting seat, and a blade pressing plate. The left yarn cutting blade and the right yarn cutting blade are fixed side by side on the blade pressing plate, the blade pressing plate is fixed on the blade mounting seat, and the blade mounting seat is fixed inside the yarn hooking plate. The blade is a vulnerable part with a high replacement frequency. The setting of the blade pressing plate and the supporting structure is not only convenient for disassembly and assembly, but also can quickly replace the blade. After the yarn enters, due to winding, the yarn will be subjected to an obliquely upward pulling force. When the yarn is pulled upward and touches the yarn cutting blade, it will be cut off.

[0013] In an embodiment that can optimize the foregoing solution, the left yarn cutting blade and the right yarn cutting blade are closely attached. The yarn cutting mechanism consists of two blades and can be used for yarns of different counts: when the yarn count is large, the left yarn cutting blade can cut off the yarn; but when the yarn count is small, the left yarn cutting blade is not easy to cut off the yarn. At this time, due to the existence of the pulling force, the yarn will move upward along the edge of the left yarn cutting blade. When it touches the right yarn cutting blade, the right yarn cutting blade joins the yarn cutting work and cuts off the yarn.

[0014] In an embodiment that can optimize the foregoing solution, the top of the left yarn cutting blade extends into the notch of the extension portion of the yarn hooking plate, and the right yarn cutting blade is higher than the notch of the extension portion of the yarn hooking plate. Specifically, the right yarn cutting blade is only slightly higher than the notch of the extension portion of the yarn hooking plate, and this structure makes it difficult for the yarn to escape after entering.

[0015] In an embodiment that can optimize the foregoing solution, the junction of the cutting edges of the left yarn cutting blade and the right yarn cutting blade is an acute angle. This structure further makes it difficult for the yarn to escape after entering.

[0016] In an embodiment that can optimize the foregoing solution, the outer side of the right yarn cutting blade is an arc-shaped structure. While reducing the wear on the yarn, it can play a guiding role for the yarn together with the extension portion of the yarn hooking plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] A yarn catching and cutting device disclosed by the utility model has a simple structure, low manufacturing cost, and can complete the yarn cutting work without an additional power source; it is convenient to disassemble and assemble, and the vulnerable blades are also easy to replace, which can not only reduce the working intensity of workers for installation and disassembly, improve work efficiency, but also reduce the later maintenance cost; it is applicable to yarns of different counts, and can not only cut high-count yarns, but also has a good effect on low-count yarns. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the right side view of a yarn catching and cutting device according to the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the bottom view of a yarn catching and cutting device according to the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the left side view of a yarn catching and cutting device according to the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the state of removing the cover plate of a yarn catching and cutting device according to the present utility model;

[0024] Figure 5 It is a schematic diagram of the yarn cutting mechanism according to the present utility model.

[0025] REFERENCE NUMERALS

[0026] 1, yarn catching mechanism; 2, yarn sucking mechanism; 3, yarn cutting mechanism;

[0027] 11, yarn hooking plate; 12, pin shaft; 13, cover plate; 14, parallel plate;

[0028] 21, nozzle seat; 22, yarn sucking hole;

[0029] 31, left yarn cutting blade; 32, right yarn cutting blade; 33, blade mounting seat; 34, blade pressing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] Please refer to Figures 1 to 5 , this embodiment provides a yarn catching and cutting device.

[0036] A yarn catching and cutting device includes a yarn catching mechanism 1, a yarn sucking mechanism 2, and a yarn cutting mechanism 3. The yarn catching mechanism 1 is installed on the side of the yarn sucking mechanism 2, and the yarn cutting mechanism 3 is installed on the yarn catching mechanism 1;

[0037] The yarn catching mechanism 1 includes a yarn hooking plate 11, a pin shaft 12, a cover plate 13 and a parallel plate 14. The yarn hooking plate 11 is fixed to the side of the yarn sucking mechanism 2. The parallel plate 14 is arranged parallel to the yarn hooking plate 11. The cover plate 13 is arranged between the yarn hooking plate 11 and the parallel plate 14. The pin shaft 12 passes through the yarn hooking plate 11, the cover plate 13 and the parallel plate 14 in sequence, and the pin shaft 12 plays a positioning role. The yarn hooking plate 11, the cover plate 13 and the parallel plate 14 are fixedly connected together by bolts, and the extending part of the yarn hooking plate 11 is bent inwards.

[0038] For further optimization of the above solution, the extending part of the yarn hooking plate 11 is bent inwards in an L shape. A notch is opened in the upper part of the extending part, and the front end of the extending part is a bevel surface.

[0039] For further optimization of the above solution, the yarn sucking mechanism 2 is a suction nozzle seat 21, and a yarn sucking hole 22 is opened in the lower part of the suction nozzle seat 21.

[0040] Furthermore, the bottom edge of the suction nozzle seat 21 and the edge of the yarn sucking hole 22 are rounded.

[0041] For further optimization of the above solution, the yarn cutting mechanism 3 includes a left yarn cutting blade 31, a right yarn cutting blade 32, a blade mounting seat 33 and a blade pressing plate 34. The left yarn cutting blade 31 and the right yarn cutting blade 32 are fixed side by side on the blade pressing plate 34. The blade pressing plate 34 is fixed on the blade mounting seat 33, and the blade mounting seat 33 is fixed on the inner side of the yarn hooking plate 11.

[0042] Furthermore, the left yarn cutting blade 31 and the right yarn cutting blade 32 are closely attached. The top of the left yarn cutting blade 31 extends into the notch of the extending part of the yarn hooking plate 11, and the right yarn cutting blade 32 is higher than the notch of the extending part of the yarn hooking plate 11. The joint of the cutting edges of the left yarn cutting blade 31 and the right yarn cutting blade 32 is an acute angle.

[0043] Furthermore, the outer side of the right yarn cutting blade 32 is an arc-shaped structure.

[0044] Working principle:

[0045] During operation, driven by the existing equipment, the yarn enters between the yarn cutting mechanism 3 and the yarn hooking plate 11. At the same time, due to winding, the yarn is subjected to an obliquely upward pulling force, and the other end of the yarn is sucked by the yarn sucking mechanism 2 and subjected to a pulling force. The yarn is cut off when it encounters the cutting edge of the blade. The utility model does not require an additional power source to cut the yarn, and adopts the method of two blades, which can be used for yarns of different counts, especially low-count yarns, and solves the problem that the existing yarn cutting mechanism is prone to the phenomenon of failure to cut.

[0046] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A yarn catching and cutting device, characterized in that: It comprises a yarn catching mechanism (1), a yarn suction mechanism (2) and a yarn cutting mechanism (3), wherein the yarn catching mechanism (1) is installed on the side of the yarn suction mechanism (2), and the yarn cutting mechanism (3) is installed on the yarn catching mechanism (1); The yarn catching mechanism (1) comprises a yarn hooking plate (11), a pin shaft (12), a cover plate (13) and a parallel plate (14); the yarn hooking plate (11) is fixed to the side of the yarn suction mechanism (2); the parallel plate (14) is arranged parallel to the yarn hooking plate (11); the cover plate (13) is arranged between the yarn hooking plate (11) and the parallel plate (14); the pin shaft (12) passes through the yarn hooking plate (11), the cover plate (13) and the parallel plate (14) in sequence; and the extension portion of the yarn hooking plate (11) is bent inward.

2. A yarn catching and cutting device according to claim 1, characterized in that: The extension part of the yarn hooking plate (11) is bent inwardly in an L-shape, and a notch is formed on the upper part of the extension part.

3. A yarn catching and cutting device according to claim 2, characterized in that: The front end of the extension portion is an inclined surface.

4. The yarn catching and cutting device according to claim 1, characterized in that: The yarn suction mechanism (2) is a suction nozzle seat (21), and a yarn suction hole (22) is provided at the lower part of the suction nozzle seat (21).

5. A yarn catching and cutting device according to claim 4, characterized in that: The bottom edge of the suction nozzle seat (21) and the edge of the yarn suction hole (22) are rounded.

6. A yarn catching and cutting device according to claim 2, characterized in that: The yarn cutting mechanism (3) comprises a left yarn cutting blade (31), a right yarn cutting blade (32), a blade mounting seat (33), and a blade pressing plate (34); the left yarn cutting blade (31) and the right yarn cutting blade (32) are fixed side by side on the blade pressing plate (34); the blade pressing plate (34) is fixed on the blade mounting seat (33); and the blade mounting seat (33) is fixed on the inner side of the yarn hooking plate (11).

7. A yarn catching and cutting device according to claim 6, characterized in that: The left yarn cutting blade (31) and the right yarn cutting blade (32) are closely fitted.

8. A yarn catching and cutting device according to claim 6, characterized in that: The top of the left yarn cutting blade (31) extends into the notch of the extended portion of the yarn hooking plate (11), and the right yarn cutting blade (32) is higher than the notch of the extended portion of the yarn hooking plate (11).

9. A yarn catching and cutting device according to claim 7, characterized in that: The left yarn cutting blade (31) and the right yarn cutting blade (32) form an acute angle at the point where their blades meet.

10. The yarn catching and cutting device according to claim 6, characterized in that: The outer side of the right yarn cutting blade (32) is an arc-shaped structure.

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