A weft feeding sword head convenient to disassemble

Abstract

This utility model relates to the technical field of weft feeding rapiers, specifically to a detachable weft feeding rapier. It includes a rapier housing, a mounting shell, and a yarn pressing rod. An elastic component is detachably connected between the yarn pressing rod and the rapier housing. The elastic component includes a return spring and a fixing member. The fixing member is threaded to one side of the rapier housing. The return spring is located between the fixing member and the yarn pressing rod. The detachable elastic component allows for easy replacement of the return spring by simply removing the fixing member, without needing to remove the yarn pressing rod. This prevents wear between the yarn pressing rod and the rapier housing due to frequent bolt removal and installation, which could affect the stability of weft yarn transmission. It also improves the convenience of replacing the return spring and extends the product's service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of weft feeding scissors, specifically to a weft feeding scissors that is easy to disassemble. Background Technology

[0002] The rapier loom is a mainstream weaving machine, widely used for weaving various grades of garment fabrics and other types of grey fabrics due to its advantages of high speed, stability, and good adaptability. In the rapier loom, the weft feed rapier is a crucial component, used to clamp and guide the weft yarn, maintaining its stable position during weaving. The weft feed rapier is typically made of metal, possessing high hardness and wear resistance to ensure it won't easily break during prolonged use. It connects to other parts of the loom through a special mechanism, automatically adjusting the weft yarn position during weaving to ensure fabric uniformity and quality. Because the weft feed rapier uses a spring-loaded connection between the pressure bar and the rapier housing to transfer the weft yarn between the pressure bar and the guide groove, the spring is prone to fatigue after a period of use. Replacing the spring requires removing the pressure bar, which is cumbersome. Furthermore, frequent disassembly of the pressure bar leads to wear between the pressure bar and the rapier housing due to frequent bolt removal and reassembly, affecting the stability of weft yarn transmission. Utility Model Content

[0003] The purpose of this invention is to provide a disassembled weft feeding tweezer head to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is as follows: a weft feeding dagger head that is easy to disassemble includes a dagger shell, a mounting shell and a yarn pressing rod on the dagger shell, and an elastic component that is detachably connected between the yarn pressing rod and the dagger shell. The elastic component includes a return spring and a fixing member. The fixing member is threadedly connected to one side of the dagger shell, and the return spring is located between the fixing member and the yarn pressing rod.

[0005] Preferably, the pressing rod has a through hole on one side, and a pin is provided in the through hole. The pin is rotatably connected to the sword shell by a bolt passing through it, and a gasket is provided between the pressing rod and the sword shell.

[0006] Preferably, the sword shell is detachably mounted with a guide groove on one side of the pressing rod; the guide groove is connected to the sword shell by a first bolt and a second bolt; the sword shell has a concave surface, and an O-ring abuts against the first bolt within the concave surface, the O-ring being higher than the concave surface; the pressing rod includes a head, the head having multiple protrusions, and the guide groove having grooves corresponding to the protrusions, the protrusions abutting against the grooves. Different fabrics can be processed by changing the guide groove.

[0007] Preferably, the head edge extends away from the guide groove.

[0008] Preferably, the sword shell has a slot on one concave side, and a support member is engaged in the slot. The support member is higher than the outer side of the slot and is located between the sword shell and the guide groove member.

[0009] Preferably, the sword shell is provided with a positioning part, which abuts against one side of the pressing rod, and one side of the mounting shell is connected to the positioning part by bolts.

[0010] Preferably, the mounting shell is an integral structure.

[0011] Preferably, the bottom of the sword shell is provided with multiple through-hole grooves.

[0012] Preferably, the guide groove is fixedly connected to the sword shell by multiple bolts.

[0013] Preferably, the bending points of the mounting shell are all provided with arc-shaped surfaces.

[0014] Compared with the prior art, this utility model provides a disassembled weft feed rapier head with the following advantages: it adopts a detachable elastic component, and when the return spring needs to be replaced, it can be removed simply by removing the fixing part without removing the yarn pressing rod. This prevents wear between the yarn pressing rod and the rapier head due to frequent disassembly and reassembly of the bolts caused by excessive disassembly of the yarn pressing rod, which would affect the stability of weft yarn transmission. It also improves the convenience of replacing the return spring and extends the service life of the product. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0017] Figure 2 This is a top view of an embodiment of the present utility model.

[0018] Figure 3 This is a cross-sectional view of the embodiment of the present invention from the main view direction.

[0019] Figure 4 This is a cross-sectional view from the right side of an embodiment of the present invention.

[0020] Figure 5 for Figure 4 A magnified view from direction A.

[0021] Figure 6 This is a perspective view of the yarn pressing rod according to an embodiment of the present utility model.

[0022] Figure Labels

[0023] 1-Sword shell; 11-Slot; 12-Support component; 13-Positioning part; 14-Through hole groove; 15-Concave surface; 2-Mounting shell; 21-Arc-shaped surface; 3-Pressure bar; 31-Through hole; 32-Shaft pin; 33-Washer; 34-Head; 341-Protrusion; 4-Elastic component; 41-Reset spring; 42-Fixing component; 5-Guide groove component; 51-Groove; 52-First bolt; 53-Second bolt; 54-O-ring; Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] like Figure 1 , Figure 3As shown, the device includes a sword shell 1, on which a mounting shell 2 and a yarn pressing rod 3 are provided. An elastic component 4 is detachably connected between the yarn pressing rod 3 and the sword shell 1. The elastic component 4 includes a return spring 41 and a fixing member 42. The fixing member 42 is threaded to one side of the sword shell 1. The return spring 41 is located between the fixing member 42 and the yarn pressing rod 3. By using a detachable elastic component 4, when the return spring 41 needs to be replaced, only the fixing member 42 needs to be removed, without removing the yarn pressing rod 3. This prevents wear caused by frequent disassembly and reassembly of the bolts between the yarn pressing rod 3 and the sword shell 1 due to excessive disassembly and reassembly, which would affect the stability of weft yarn transmission. This improves the convenience of replacing the return spring 41 and extends the service life of the product.

[0030] like Figures 1 to 6 As shown, the pressing rod 3 has a through hole 31 on one side, and a shaft pin 32 is provided in the through hole 31. The shaft pin 32 is rotatably connected to the sword shell 1 by a bolt passing through it. A gasket 33 is provided between the pressing rod 3 and the sword shell 1 to reduce wear between them and improve their stability. A guide groove 5 is detachably installed on the side of the pressing rod 3 on the sword shell 1. The guide groove 5 is connected to the sword shell 1 by a first bolt 52 and a second bolt 53. The sword shell 1 has a concave surface 15, and an O-ring 54 abuts against the first bolt 52 in the concave surface. The O-ring 54 is higher than the concave surface 15. Because the first bolt 52 has an O-ring 54 higher than the concave surface 15, when the second bolt 53 is tightened, the end away from the second bolt 53 generates a squeezing force on the pressing rod 3, thereby improving the reliability between the pressing rod 3 and the guide groove 5. The pressing rod 3 includes a head 34, and the head 34 has multiple protrusions 341. The guide groove 5 is provided with a groove 51 corresponding to the protrusion 341, and the protrusion 341 abuts against the groove 51. The guide groove is detachably mounted on the sword shell, and different fabrics can be processed by replacing the guide groove 5. The edge of the head 34 extends away from the guide groove 5. The sword shell 1 is provided with a slot 11 on one side of the concave surface 15. A support member 12 is engaged in the slot 11. The support member 12 is higher than the outer side of the slot 11 and is located between the sword shell 1 and the guide groove 5 to prevent wear between the sword shell 1 and the guide groove 5. At the same time, the support member 12 can also play a buffering role to reduce the shaking of the guide groove 5. The sword shell 1 is provided with a positioning part 13, which abuts against one side of the pressing rod 3. One side of the mounting shell 2 is connected to the positioning part 13 by bolts to improve the stability of the mounting shell 2 on the sword shell 1. The mounting shell 2 is an integral structure. The bottom of the sword shell 1 is provided with multiple through-hole slots 14. The guide groove 5 is fixedly connected to the sword shell 1 by multiple bolts. Compared with the fixation by a single bolt, the fixation by multiple bolts is more stable. The mounting shell 2 is provided with an arc-shaped surface 21 at the bending point.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A weft thread feeding sword tip which is easy to detach, characterized in that: The device includes a sword shell, on which a mounting shell and a yarn-pressing rod are provided. An elastic component is detachably connected between the yarn-pressing rod and the sword shell. The elastic component includes a return spring and a fixing member. The fixing member is threadedly connected to one side of the sword shell, and the return spring is located between the fixing member and the yarn-pressing rod.

2. A shedding sword according to claim 1, wherein: The yarn pressing rod has a through hole on one side, and a pin is provided in the through hole. The pin is rotatably connected to the sword shell by a bolt passing through it. A gasket is provided between the yarn pressing rod and the sword shell.

3. A drop end knife as claimed in claim 1 wherein: The sword shell is detachably mounted with a guide groove on one side of the yarn pressing rod; the guide groove is connected to the sword shell by a first bolt and a second bolt; the sword shell has a concave surface, and the first bolt abuts against an O-ring in the concave surface, the O-ring being higher than the concave surface; the yarn pressing rod includes a head, the head having multiple protrusions, the guide groove having grooves corresponding to the protrusions, the protrusions abutting against the grooves.

4. The easily detachable weft feeding tweezer as described in claim 3, characterized in that: The head edge extends away from the guide groove.

5. A drop end knife as claimed in claim 3 wherein: The sword shell has a slot on one concave side, and a support member is engaged in the slot. The support member is higher than the outer side of the slot and is located between the sword shell and the guide groove member.

6. The easily detachable weft feeding tweezer as described in claim 1, characterized in that: The sword shell is provided with a positioning part, which abuts against one side of the pressing rod, and one side of the mounting shell is connected to the positioning part by bolts.

7. A drop end knife as claimed in claim 1 wherein: The mounting shell is a one-piece structure.

8. A drop end knife according to claim 1 wherein: The bottom of the sword shell has multiple through-hole grooves.

9. A drop end knife as claimed in claim 3 wherein: The guide groove is fixedly connected to the sword shell by multiple bolts.

10. A drop end knife according to claim 1 wherein: All bending points of the mounting shell are provided with arc-shaped surfaces.

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