Jumping rod of circular weaving machine

Abstract

The utility model discloses a jumping rod of a circular weaving machine, which belongs to the field of textile machinery, solves the problem that the weaving quality is influenced due to the fact that the surface layer of a silk thread is damaged due to large tension, and adopts the technical scheme that the jumping rod mainly comprises a connecting frame, a metal wire rod and an abutting reset piece, and the metal wire rod and the abutting reset piece are respectively arranged at two ends of the connecting frame. The metal screw rod is provided with a threading part, the abutting reset piece is elastic and electrically connected with the metal screw rod, the threading part is arranged at the end, away from the connecting frame, of the metal screw rod, and the threading part is obliquely arranged towards the center of the circular weaving machine in the length direction of the metal screw rod. The utility model mainly reduces the tension of the silk thread, reduces the possibility of damaging the surface layer of the silk thread, and improves the weaving quality.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery, and in particular to a jump bar for a circular loom. Background Technology

[0002] During the weaving process, circular looms often experience thread breakage. To ensure product quality, a stop alarm function is required when a thread breakage occurs.

[0003] In existing technology, a jump bar is usually installed on a circular loom. One end of the jump bar is connected to the yarn, and the other end is abutted against the circular loom. The jump bar is rotatably connected to the circular loom. The tension of the yarn has a pulling effect on the jump bar, so that the end of the jump bar away from the yarn abuts against the circular loom. When the yarn breaks, the pulling effect of the yarn tension on the jump bar disappears. The end of the jump bar away from the yarn deviates from the circular loom under its elastic action, and a stop alarm signal is issued, causing the circular loom to stop running.

[0004] A bobbin typically includes a swing block and abutment parts and a metal wire rod connected to both ends of the swing block. The end of the metal wire rod is provided with a threading part. In the prior art, the side of the threading part facing away from the center of the circular loom is in the same direction as the length of the metal wire rod, so that the threading part and the metal wire rod are basically parallel. When the thread passes through the threading part, the surface of the thread is easily damaged when the tension is maintained for a long time, resulting in a rough surface of the woven fabric, which in turn affects the weaving quality. Utility Model Content

[0005] The purpose of this invention is to provide a looper for circular looms to solve the problem of surface damage to the yarn due to high tension, which affects the weaving quality. This invention reduces yarn tension, lowers the possibility of surface damage, and improves the quality assurance of weaving.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a circular loom jump bar, comprising a connecting frame, metal wire rods respectively disposed at both ends of the connecting frame, and an abutting and resetting member. The connecting frame is rotatably disposed on the circular loom. The metal wire rods have a threading part. The abutting and resetting member is elastic and electrically connected to the metal wire rod. The threading part is disposed at the end of the metal wire rod away from the connecting frame, and the threading part is inclined towards the center of the circular loom in the length direction of the metal wire rod.

[0007] After adopting the above technical solution, this utility model has the following advantages: After the thread passes through the threading part, it is pulled away from the metal wire rod. While the thread is tightened, the tension of the thread also exerts a pulling effect on the threading part, causing the abutting and resetting part to abut against the circular loom. When the thread breaks, the abutting and resetting part deviates from the circular loom under the action of elasticity, causing the circular loom to stop, thus avoiding the circular loom from continuing to run after the thread breaks, which would affect the weaving quality. The threading part is inclined on the metal wire rod, so that the threading part is biased towards the center of the circular loom, reducing the tension of the thread after passing through the threading part. This reduces the possibility of the thread continuously bearing tension during the continuous weaving process, which could lead to surface breakage. In addition, it avoids the possibility of the fabric surface being rough after weaving, which would affect the weaving quality, and thus ensures the quality of the woven fabric.

[0008] Furthermore, the abutting reset member is inclined relative to the length direction of the metal wire rod, and the threading part and the abutting reset member are located on the same side of the metal wire rod.

[0009] Using the aforementioned technical solution, both the abutting reset part and the threading part are inclined and located on the same side of the metal wire rod. When the thread breaks, the threading part and the metal wire rod lack tension and deflect. The same-side setting ensures that when the connecting frame rotates, the abutting reset part deviates from the circular loom, ensuring the stability of the loop rod triggering the circular loom to stop running when the thread breaks.

[0010] Furthermore, the angle between the threading part and the length direction of the metal wire rod is A, where 10°≦A≦30°.

[0011] Using the aforementioned technical solution, the included angle generated by the threading part after it is tilted in the length direction of the metal wire rod is set to A≦30° to avoid excessive tilting of the threading part, resulting in insufficient tension of the thread and thus affecting the weaving quality; and the setting of 10°≦A≦30° ensures that the tension of the thread is within a certain range, avoiding excessive or insufficient tension that would affect the weaving quality.

[0012] Furthermore, the angle A between the threading part and the length direction of the metal wire rod is 15°; or, the angle A between the threading part and the length direction of the metal wire rod is 25°.

[0013] By adopting the aforementioned technical solution, the angle between the threading part and the metal wire rod is set to 15°, which reduces the tension of the thread during the weaving process and reduces the surface cracking of the thread, thus affecting the quality of the woven fabric. The angle between the threading part and the metal wire rod is set to 25°. When the elasticity of the thread is good, the 25° angle can ensure the tension of the thread and reduce the possibility of damage to the thread due to excessive pulling.

[0014] Furthermore, the threading section includes multiple straight sections and multiple curved sections, with a straight section connected to a metal wire rod, and multiple straight sections and multiple curved sections alternately connected to form threading holes.

[0015] By adopting the aforementioned technical solution, the threading section is connected to the metal wire rod through multiple straight sections and multiple curved sections. This facilitates the inclined setting of the threading section, and the angle of inclination is easy to calculate and adjust. The setting of straight and curved sections makes the threading section have a larger space, which makes it easier for the yarn to pass through.

[0016] Furthermore, the threading section includes two curved sections and a straight section. One curved section is connected to a metal wire rod, and the straight section is inclined towards the center of the circular loom along the length of the metal wire rod. The straight section is located between the two curved sections so that the yarn can slide up and down relative to the straight section.

[0017] The inner side of the threading section is usually coated with a protective layer. This is to improve the wear resistance of the threading section and to improve the smoothness of the part where the threading section contacts the yarn, so as to reduce wear during the yarn weaving process. However, if the yarn is in contact with the same position on the protective layer for a long time, it can easily damage the protective layer. Alternatively, when coating the protective layer, a thicker protective layer may be required, resulting in waste of protective layer material and an increase in textile costs.

[0018] By employing the aforementioned technical solution, the straight section of the threading part that contacts the thread is designed to be inclined. This reduces the tension of the thread while allowing it to slide up and down relative to the straight section, increasing the contact area between the thread and the threading part. This prevents repeated friction of the thread at the same location on the threading part, which could damage the protective layer, thus improving the service life of the threading part and reducing the possibility of thread breakage after the protective layer is damaged. Due to the movement of the thread, the protective layer can be plated thinner on the straight section, reducing the amount of protective layer material used and thus lowering costs.

[0019] Furthermore, the abutting reset member includes an elastic part and an abutting part, the elastic part sleeves the connecting frame and the abutting part, and the abutting part abuts against the circular loom.

[0020] By adopting the aforementioned technical solution, the abutting and resetting component is configured as an elastic part and an abutting part. The abutting part abuts against the circular loom, and the elastic part generates a resetting tendency and deflects when the yarn breaks, thereby improving the sensitivity of the abutting part to detach from the circular weaving force and preventing the abutting part from still abutting against the circular loom after the yarn breaks, thus affecting the weaving quality.

[0021] Furthermore, the length of the elastic part is L1, and the length of the abutting part that sleeves the elastic part is L2, where 0.2*L1≦L2≦0.5*L1.

[0022] Using the aforementioned technical solution, when the elastic part and the abutting part are sleeved, the sleeve length is set to L2≦0.5*L1 to avoid the sleeve length being too long and affecting the sensitivity of the elastic part. The sleeve length is set to 0.2*L1≦L2 to ensure the stability of the sleeve between the elastic part and the abutting part, and to avoid the possibility of the abutting part and the elastic part separating, which could cause the circular loom to stop operating even though the yarn has not broken.

[0023] Furthermore, the elastic part is connected to the connecting frame by a connecting rod, and the angle between the length direction of the connecting rod and the length direction of the metal wire rod is α, where 20°≦α≦50°.

[0024] Using the aforementioned technical solution, the tilt of the abutment reset component is achieved through a connecting rod, and the tilt angle between the connecting rod and the metal wire rod is set to 20°≦a≦50°, which facilitates the adjustment of the jump rod installation according to the stress strength of the wire; at the same time, it avoids that the tilt angle between the length of the connecting rod and the metal wire rod is too large, which would affect the sensitivity of the jump rod.

[0025] Furthermore, the connecting frame is provided with a snap-fit ​​notch for connecting to a circular loom, and the central angle of the inner peripheral wall of the snap-fit ​​notch is greater than 180°.

[0026] Using the aforementioned technical solution, when the connecting frame is rotatably connected to the circular loom, it is rotatably connected to the circular loom through a snap-fit ​​notch, which facilitates the disassembly of the connecting frame and the maintenance and replacement of the jump rod; the central angle of the inner circumferential wall of the snap-fit ​​notch is set to be greater than 180° to improve the stability of the rotatable connection between the connecting frame and the circular loom.

[0027] Furthermore, the tail end of the threading section bends and extends to the end of the wire rod away from the connecting frame.

[0028] By adopting the aforementioned technical solution, the threading section bends and extends back to the end of the metal wire rod away from the connecting frame, which facilitates the wire passing through the connecting section and improves the stability of the wire threading through the threading section. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of a looper for a circular loom according to the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the threading part in this utility model with an inclination angle of 15°;

[0032] Figure 3 This is a schematic diagram of the structure of the threading part in this utility model with an inclination angle of 25°;

[0033] Figure 4 This is a schematic diagram of the structure in which the fourth extension is inclined in this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the abutment and resetting component in this utility model;

[0035] Figure 6 This is a schematic diagram of the connection between the abutting part and the elastic part of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0037] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0038] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0039] like Figure 1 As shown, this utility model provides a circular loom jump bar, including a connecting frame 1, metal wire rods 3 respectively disposed at both ends of the connecting frame 1, and an abutment and reset member 2. The connecting frame 1 is rotatably mounted on the circular loom. The metal wire rods 3 have threading parts 4. The abutment and reset member 2 is elastic and electrically connected to the metal wire rods 3. During the weaving process, the thread passes through the threading parts 4. The thread pulls the threading parts 4 towards the center of the circular loom, and the abutment and reset member 2 abuts against the circular loom. When the thread breaks, the abutment and reset member 2 deviates from the circular loom under its elastic reset action, causing the circular loom to stop weaving and preventing the circular loom from continuing to run after the thread breaks, thus affecting the weaving quality. Figure 1 and Figure 2 As shown, the threading part 4 is located at the end of the metal wire rod 3 away from the connecting frame 1, and the threading part 4 is inclined towards the center of the circular loom relative to the length direction of the metal wire rod 3; as Figure 2 As shown, to improve the stability of the thread after passing through the threading part 4, the tail end of the threading part 4 is bent and extended, forming a loop at the end of the metal wire rod 3, until the tail end of the threading part 4 extends to the end of the metal wire rod 3 away from the connecting frame 1; specifically, the threading part 4 includes multiple straight parts and multiple curved parts, the multiple straight parts are respectively the first extension part 41 and the second extension part 43, the multiple curved parts are respectively the first curved part 42 and the second curved part 44, the straight parts are connected to the metal wire rod 3, that is, the first extension part 41 is connected to the metal wire rod 3, when the multiple straight parts and the multiple curved parts are alternately connected to form the threading hole, the first extension part 41, the first curved part 42, the second extension part 43 and the second curved part 44 are connected end to end to form the threading hole through which the thread passes, thereby improving the stability of the thread after passing through; more specifically, the angle between the length direction of the first extension part 41 and the length direction of the metal wire rod 3 is A, the first curved part 42 is integrally connected to the first The tail end of the extension 41 is semi-circular, and the tail end of the first bending part 42 faces the connecting frame 1. The second extension 43 is integrally connected to the tail end of the first bending part 42 and is parallel to the first extension 41. The second bending part 44 is opposite to the first bending part 42, and the tail end of the second bending part 44 is close to the connection between the first extension 41 and the wire rod 3. Through the first extension 41, the first bending part 42, the second extension 43, and the second bending part 44, a ring is formed to prevent the thread from detaching from the threading part 4 after passing through it. The tension of the thread acts on the second extension 43. The inclined setting of the threading part 4 makes it biased towards the center of the circular loom, reducing the possibility of the thread being continuously tensioned under high tension and then continuously bearing tension during the weaving process, which could lead to surface breakage. This reduces the possibility of the fabric surface being rough after weaving, which could affect the quality of the weaving and ensure the quality of the woven fabric. Figure 2 As shown, the straight section can also be a third extension 45. The third extension 45 is disposed at the tail end of the second bend 44. The third extension 45 is parallel to the first extension 41 and is located between the first extension 41 and the second extension 43. The third extension 45 can reduce the possibility of the thread coming off the threading section 4 between the second bend 44 and the first extension 41.

[0040] The inner side of the threading section 4 is usually coated with a protective layer. This is done to improve the wear resistance of the threading section 4 and to increase the smoothness of the contact area between the threading section 4 and the yarn, thus reducing wear during the yarn weaving process. However, long-term contact and friction between the yarn and the same location on the protective layer can easily damage the layer. Alternatively, when coating the protective layer, the protective layer on the part frequently in contact with the yarn needs to be thicker than on other parts, requiring extra attention to the local coating thickness, which makes coating difficult. Furthermore, the yarn itself may move during the weaving process, resulting in incomplete control over the yarn and inadequate protection. In another embodiment, the threading section 4 includes two curved sections and a straight section located between the two curved sections. Specifically, as shown... Figure 4 As shown, in this embodiment, the two curved portions are the third curved portion 46 and the fourth curved portion 48, and the straight portion is the fourth extension portion 47. One end of the fourth extension portion 47 is connected to the third curved portion 46, and the other end is connected to the fourth curved portion 48. The third curved portion 46 is connected to the tail end of the metal wire rod 3. The inner sides of the third curved portion 46 and the fourth curved portion 48 are arranged opposite each other. The fourth extension portion 47 is inclined relative to the metal wire rod 3 towards the center of the circular loom. More specifically, the angle between the length direction of the first extension portion 41 and the length direction of the metal wire rod 3 is A, so that the upper end of the metal wire rod 3 is closer to the center of the circular loom than the lower end. This reduces the tension of the yarn, while the yarn can slide up and down relative to the fourth extension portion 47, expanding the contact range between the yarn and the threading portion 4. This avoids repeated friction of the yarn at the same position on the threading portion 4, which would damage the protective layer, improve the service life of the threading portion 4, and reduce the possibility of yarn breakage after the protective layer is damaged. Due to the movement of the threads, when a protective layer is plated on the fourth extension 47, the plated protective layer can be thinner, reducing the amount of protective layer material used and thus reducing costs.

[0041] To reduce the possibility of the thread detaching from the threading section 4, a fifth extension section 49 is provided at the tail end of the fourth bending section 48. The fifth extension section 49 extends toward the fourth extension section 47 and is parallel to the metal wire rod 3. The fifth extension section 49 prevents the thread from detaching from the threading section 4 at the tail end of the fourth bending section 48, thereby improving the stability of the thread within the threading section 4.

[0042] In this embodiment, as Figure 1 As shown, the abutting reset member 2 is inclined relative to the length direction of the metal wire rod 3, and the threading part 4 and the abutting reset member 2 are located on the same side of the metal wire rod 3. When the thread breaks, the threading part 4 and the metal wire rod 3 lack the pulling force and deflect. The same side setting ensures that when the connecting frame 1 rotates, the abutting reset member 2 deviates from the circular loom, ensuring the stability of the loop rod triggering the circular loom to stop running when the thread breaks.

[0043] In another embodiment, such as Figure 1As shown, the included angle A is set to satisfy 10°≦A≦30°; in the specific implementation process, the size of the included angle can be selected according to the softness and elastic recovery ability of the thread. A more preferred option is... Figure 2 As shown, the angle A between the first extension 41 and the metal wire rod 3 is 15°, which reduces the tension of the thread during the weaving process and reduces the risk of surface breakage of the thread affecting the quality of the woven fabric; in another preferred embodiment, such as Figure 3 As shown, the angle A between the first extension 41 and the length direction of the metal wire rod 3 is 25°. When the elasticity of the wire is good, the 25° tilt angle can ensure the tension of the wire and reduce the possibility of damage to the wire due to excessive pulling.

[0044] In another embodiment, such as Figure 5 As shown, to ensure the sensitivity of the abutment reset member 2, the abutment reset member 2 includes an elastic part 22 and an abutment part 21. The elastic part 22 is connected to the connecting frame 1 through a connecting rod 23. The abutment part 21 is located at the end of the elastic part 22 away from the connecting rod 23. The elastic part 22 is sleeved on the outer peripheral wall of the abutment part 21. The end of the abutment part 21 away from the elastic part 22 abuts against the circular loom. When the thread breaks, the thread thread 4 lacks tension. Under the elastic reset action of the elastic part 22, the connecting frame 1 rotates relative to the circular loom, causing the abutment part 21 to deviate from the circular loom. The circular loom stops running. The elastic part 22 drives the connecting frame 1 to rotate, preventing the abutment part 21 from still abutting against the circular loom after the thread breaks, thus preventing the broken thread from continuing to weave and affecting the quality of the woven fabric.

[0045] In this embodiment, as Figure 6 As shown, in order to improve the sensitivity and stability of the elastic part 22, the length of the elastic part 22 is L1, and the length of the connection between the abutment part 21 and the elastic part 22 is L2, 0.2*L1≦L2≦0.5*L1; L2≦0.5*L1, to avoid the connection length being too long and affecting the elastic restoring ability of the elastic part 22. The setting of 0.2*L1≦L2 ensures the stability of the connection between the elastic part 22 and the abutment part 21, and avoids the possibility of the abutment part 21 and the elastic part 22 detaching, which could cause the circular loom to stop running even though the yarn has not broken.

[0046] In another embodiment, the tilt between the abutment reset member 2 and the metal wire rod 3 is achieved by the connecting rod 23. Specifically, the angle between the length direction of the connecting rod 23 and the length direction of the metal wire rod 3 is α, and the setting of 20°≦a≦50° and α≦50° is satisfied. This avoids the tilt angle between the length of the connecting rod 23 and the metal wire rod 3 being too large, which would cause the abutment part 21 to deviate from the circular loom even if the thread is not broken, resulting in a pause in operation and affecting the sensitivity of the jump rod. On the other hand, 20°≦a avoids the tilt angle being too small, which would cause the abutment part 21 to rotate without deviating from the circular loom even if the thread is broken, resulting in the circular loom continuing to weave after the thread breaks.

[0047] To improve the stability of the connection between the connecting frame 1 and the circular loom, such as Figure 5 As shown, the connecting frame 1 is provided with a snap-fit ​​notch 11 for connecting with a circular loom. When installing the connecting frame 1, the snap-fit ​​notch 11 is snapped onto the circular loom, and the inner side wall of the snap-fit ​​notch 11 is sleeved with the circular loom. The connecting frame 1 achieves the rotation between the metal wire rod 3 and the abutment part 21 by rotating the inner wall of the snap-fit ​​notch 11 and the circular loom. This facilitates the rotation of the connecting frame 1 by the elastic part 22 when the thread threading part 4 lacks tension after the thread breaks, so that the abutment part 21 deviates from the circular loom.

[0048] In this embodiment, the central angle of the inner peripheral wall of the snap-fit ​​notch 11 is greater than 180°, which increases the contact range between the connecting frame 1 and the circular loom, improves the stability of the connecting frame 1 after snap-fit, and reduces the possibility of the connecting frame 1 detaching from the circular loom.

[0049] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A looper for a circular loom, comprising a connecting frame, metal wire rods respectively disposed at both ends of the connecting frame, and a retaining and resetting member, wherein the connecting frame is rotatably mounted on the circular loom, the metal wire rods have threading portions, and the retaining and resetting member is elastic and electrically connected to the metal wire rods, characterized in that, The threading part is located at the end of the metal wire rod away from the connecting frame, and the threading part is inclined towards the center of the circular loom along the length of the metal wire rod.

2. The circular loom jump bar according to claim 1, characterized in that, The abutting reset member is inclined relative to the length direction of the metal wire rod, and the threaded part and the abutting reset member are located on the same side of the metal wire rod.

3. The circular loom jump bar according to claim 1, characterized in that, The angle between the threading part and the length direction of the metal wire rod is A, where 10°≦A≦30°.

4. The circular loom jump bar according to claim 3, characterized in that, The angle A between the threading part and the length direction of the metal wire rod is 15°; or, the angle A between the threading part and the length direction of the metal wire rod is 25°.

5. The circular loom jump bar according to claim 1, characterized in that, The threading section includes multiple straight sections and multiple curved sections. A straight section is connected to a metal wire rod, and multiple straight sections and multiple curved sections are alternately connected to form threading holes; or, the threading section includes two curved sections and a straight section. One curved section is connected to a metal wire rod, and the straight section is inclined towards the center of the circular loom along the length of the metal wire rod. The straight section is located between the two curved sections so that the yarn can slide up and down relative to the straight section.

6. The circular loom jump bar according to claim 1, characterized in that, The abutting and resetting component includes an elastic part and an abutting part. The elastic part is sleeved on the connecting frame and the abutting part, and the abutting part abuts against the circular loom.

7. The circular loom jump bar according to claim 6, characterized in that, The length of the elastic part is L1, and the length of the abutting part that sleeves the elastic part is L2, where 0.2*L1≦L2≦0.5*L1.

8. The circular loom jump bar according to claim 6, characterized in that, The elastic part is connected to the connecting frame by a connecting rod, and the angle between the length direction of the connecting rod and the length direction of the metal wire rod is α, where 20°≦α≦50°.

9. The circular loom jump bar according to claim 1, characterized in that, The connecting frame is provided with a snap-fit ​​notch for connecting to a circular loom, and the central angle of the inner peripheral wall of the snap-fit ​​notch is greater than 180°.

10. The circular loom jump bar according to claim 1, characterized in that, The tail end of the threading section bends and extends to the end of the metal wire rod away from the connecting frame.

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