Universal pull rod structure for ribbon loom

Abstract

The utility model relates to the technical field of ribbon looms, in particular to a universal pull rod structure for a ribbon loom, which comprises two ball cups, two balls, two pull rods and two upper covers, and a connecting bridge is arranged between the two ball cups to connect and fix the two ball cups. Mounting grooves are formed in the two ball cup bodies, open holes are formed in the positions, at the bottoms of the mounting grooves, of the ball cup bodies, each ball head is fixedly connected with a pull rod, one ball head is mounted in the mounting groove of each ball cup body, and the pull rods penetrate out of the ball cup bodies through the open holes; the two upper covers are fixedly installed in the installation grooves of the two ball cup bodies correspondingly to seal openings of the installation grooves, the upper covers are provided with arc-shaped containing grooves matched with the ball heads, and the ball heads are located in the arc-shaped containing grooves to be supported in a steering mode. And the running speed of the weft needle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of ribbon weaving machines, and more specifically, to a universal tie rod structure for a ribbon weaving machine. Background Art

[0002] A ribbon weaving machine is an industrial device specifically used for weaving various types of ribbons, and is widely used in fields such as textiles, packaging, automobiles, and sports equipment. The ribbon weaving machine has weft needles, which are used to guide and control the movement path of the ribbon to ensure that the ribbon can pass smoothly during the weaving process. The weft needles cooperate with other components of the ribbon weaving machine (such as warp yarns and weft yarns) to ensure the structural stability of the ribbon. A universal tie rod is usually arranged between the weft needle and the weft needle driving mechanism. Through the design of the universal tie rod, the weft needle is allowed to be flexibly adjusted in multiple directions, so as to adapt to different ribbon thicknesses and types, ensure the smoothness of the weaving process, and through the adjustment of the universal tie rod, the tension of the weft needle on the ribbon can be precisely controlled, which helps to maintain the uniformity and quality of the ribbon, prevent the ribbon from skipping stitches during the weaving process, and the universal tie rod can absorb and reduce the vibration generated during the operation of the machine, protect the weft needle and other components from damage, and improve the stability of the whole machine.

[0003] In related technologies, the universal tie rod structure usually includes a mounting housing, and aligning ball bearings are installed at both ends of the mounting housing. The inner rings of the two aligning ball bearings are both connected with tie rods. One tie rod is used to connect the weft needle, and the other tie rod is used to connect the driving mechanism. With the above technical solution, although the aligning ball bearing can provide steering support for the tie rod, it is prone to failure during high-speed operation, and there will be a large gap after running for a period of time and it is easy to fall off. Therefore, the aligning ball bearing limits the high-speed movement of the weft needle, and the volume and weight of the aligning ball bearing are relatively large, making the overall volume of the universal tie rod relatively large, which has a greater limitation on the design of the ribbon weaving machine. Summary of the Utility Model

[0004] In order to solve the problem that in related technologies, the universal tie rod structure using an aligning ball bearing as the steering support of the tie rod limits the high-speed movement of the weft needle in the ribbon weaving machine and the overall volume of the universal tie rod is relatively large due to the use of the aligning ball bearing, the present application provides a universal tie rod structure for a ribbon weaving machine.

[0005] A universal tie rod structure for a ribbon weaving machine includes two ball head seats. A connecting bridge is arranged between the two ball head seats to connect and fix the two ball head seats. Both of the ball head seats are provided with mounting grooves, and through holes are opened at the bottoms of the mounting grooves of the ball head seats.

[0006] It further includes two ball heads, two pull rods and two upper covers. Each of the ball heads is fixedly connected with one of the pull rods. Each of the ball heads is installed in the installation groove of the ball head seat, and the pull rod passes through the opening of the ball head seat. The two upper covers are respectively fixedly installed in the installation grooves of the two ball head seats to close the openings of the installation grooves, and the upper covers are provided with arc-shaped accommodating grooves adapted to the ball heads. The ball heads are supported for turning in the arc-shaped accommodating grooves.

[0007] Preferably, the installation groove is circular, and the side wall of the groove body is provided with a first thread. The upper cover is cylindrical. The arc-shaped accommodating groove is arranged at one end of the cylindrical upper cover. The outer peripheral wall of the upper cover is provided with a second thread matching the first thread, and the diameter of the upper cover matches the inner diameter of the installation groove. The upper cover is fixedly installed in the installation groove by thread locking.

[0008] Preferably, a plurality of oil receiving grooves are evenly arranged at the inner bottom of the upper cover in the arc-shaped accommodating groove.

[0009] Preferably, a plurality of arc-shaped sliding ribs are evenly arranged on the inner peripheral wall of the arc-shaped accommodating groove. Each of the arc-shaped sliding ribs extends from the bottom of the arc-shaped accommodating groove to the opening end of the arc-shaped accommodating groove, and there is an interval between adjacent two arc-shaped sliding ribs.

[0010] Preferably, both of the ball heads are formed after grinding a spherical ball, and the ground part forms a plane. A connecting hole is arranged at the position of the plane of the ball head, and the inner side wall of the connecting hole is provided with a third thread. One end of the pull rod is provided with a fourth thread matching the third thread. The diameter of the pull rod matches the inner diameter of the connecting hole, and the pull rod is fixedly connected to the connecting hole by thread locking.

[0011] The beneficial technical effects of the present application are as follows: The ball head is limited by the cooperation of the installation groove arranged by the upper cover and the ball head seat, and the ball head is supported for turning by the arc-shaped accommodating groove arranged by the upper cover. Compared with the design structure of arranging rollers between the inner and outer rings of a self-aligning ball bearing, the structure is more compact, so that the overall volume of the universal pull rod is smaller, which is convenient for arranging a plurality of universal pull rods in the tight space of the webbing machine, and the number of weft needles installed on the webbing machine can be increased. The upper cover limits the ball head in the axial direction of the pull rod, so that the ball head and the pull rod can bear greater vibration and impact in the axial direction of the pull rod. When running at high speed, the pull rod and the ball head are not easily separated from the ball head seat, which is beneficial to improving the running speed of the weft needle. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of a universal pull rod structure for a webbing machine in this embodiment.

[0013] Figure 2Exploded view of a universal pull rod structure for a webbing machine in this embodiment.

[0014] Figure 3 Schematic structural diagram of the upper cover of this embodiment.

[0015] Figure 4 Cross-sectional view of the ball head of this embodiment.

[0016] Reference numerals: 1, ball head seat; 11, mounting groove; 12, opening; 2, ball head; 21, connecting hole; 3, pull rod; 4, upper cover; 41, arc-shaped accommodating groove; 42, oil receiving groove; 43, arc-shaped sliding rib; 5, connecting bridge. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] A universal pull rod structure for a webbing machine, see Figure 1 and Figure 2 , including two ball head seats, two ball heads, two pull rods and two upper covers. A connecting bridge is arranged between the two ball head seats to connect and fix the two ball head seats, and the two ball head seats and the connecting bridge are integrally formed, with good strength. Both ball head seats are provided with mounting grooves, and openings are provided at the bottom of the mounting grooves of both ball head seats. The openings communicate with the mounting grooves and the outside. The mounting grooves are circular and the side walls of the groove bodies are provided with first threads. Both upper covers are cylindrical, and an arc-shaped accommodating groove is provided at one end of the cylindrical upper cover. The diameter of the upper cover matches the inner diameter of the mounting groove, and the outer peripheral wall of the upper cover is provided with second threads matching the first threads. The two upper covers are respectively fixedly installed in the two mounting grooves by threads, and the arc-shaped accommodating groove faces the opening and communicates with the opening.

[0019] See Figure 2 , Figure 3 and Figure 4, both ball heads are formed after grinding a spherical ball. The part removed during the grinding of the ball head forms a plane, and a connecting hole is provided at the position of the plane. A third thread is provided on the inner side wall of the connecting hole. One end of each of the two pull rods is provided with a fourth thread that matches the third thread. The diameter of the pull rod matches the inner diameter of the connecting hole. The two pull rods are respectively fixed to the connecting holes of the two ball heads through thread locking. The arc-shaped accommodating groove fits the ball head. The two ball heads are respectively placed into the installation grooves of the two ball head seats. The pull rods on the ball heads pass through the holes and extend out of the outside of the ball head seats. The two upper covers are respectively locked and fixed to the two installation grooves through threads to limit the ball heads. The two ball heads respectively fall into the two arc-shaped accommodating grooves. The ball heads contact the inner bottom of the arc-shaped accommodating grooves, and the flared opening of the arc-shaped accommodating groove is larger than the diameter of the ball head, realizing the turning support of the arc-shaped accommodating groove for the ball head. The diameter of the hole is larger than the diameter of the pull rod to provide a turning space for the pull rod, and the central extension lines of the installation grooves provided on the two ball head seats are vertically arranged.

[0020] In this embodiment, the ball head is limited by the cooperation of the installation grooves provided by the upper cover and the ball head seat. The ball head is supported by the arc-shaped accommodating groove provided by the upper cover for turning. Compared with the design of setting rollers between the inner and outer rings of a self-aligning ball bearing, the structure is more compact, making the overall volume of the universal pull rod smaller, facilitating the arrangement of multiple universal pull rods in the tight space of the loom, and enabling an increase in the installation quantity of the weft needles of the loom. By limiting the ball head in the axial direction of the pull rod through the upper cover, the ball head and the pull rod can withstand greater vibration and impact in the axial direction of the pull rod. During high-speed operation, the pull rod and the ball head are not easily separated from the ball head seat, which is beneficial to improving the operating speed of the weft needle. The upper cover and the ball head seat are fixed by means of threaded connection, facilitating the separation of the upper cover and the ball head seat, making the maintenance of the upper cover, the ball head seat and the ball head more convenient. The pull rod and the ball head are realized through thread locking, facilitating the reuse of the pull rod after the ball head is worn and replaced, which is beneficial to reducing production costs. The central extension lines of the installation grooves provided by the two mounting seats are vertically arranged, making the two pull rods vertically arranged, facilitating the staggered installation of the weft needle driving mechanism and the weft needle of the loom to achieve avoidance.

[0021] See Figure 3 , further, the upper cover is provided with a number of evenly arranged oil receiving grooves at the inner bottom of the arc-shaped accommodating groove. By dripping lubricating oil into the oil receiving grooves, the ball head is lubricated, which is beneficial to reducing the friction between the ball head and the upper cover and making the turning of the ball head smoother; a number of arc-shaped sliding ribs are evenly arranged on the inner peripheral wall of the arc-shaped accommodating groove. Each arc-shaped sliding rib extends from the bottom of the arc-shaped accommodating groove to the opening end of the arc-shaped accommodating groove. The cross-section of the arc-shaped sliding rib is arranged in a shape similar to an isosceles trapezoid, and adjacent arc-shaped sliding ribs are arranged at intervals. When the ball head turns, it contacts the arc-shaped sliding ribs. The number of arc-shaped sliding ribs arranged at intervals reduces the contact area with the ball head, making the friction force received by the ball head smaller while being supported, further reducing the wear of the ball head and improving the service life of the ball head.

[0022] Although embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A universal pull rod structure for a webbing machine, characterized in that: It includes two ball seats. A connecting bridge is arranged between the two ball seats to connect and fix the two ball seats. Both of the two ball seats are provided with mounting grooves, and openings are formed at the bottoms of the mounting grooves of the ball seats. It further includes two ball heads, two tie rods and two upper covers. Each ball head is connected and fixed with one tie rod. One ball head is installed in the mounting groove of each ball seat, and the tie rod passes through the opening of the ball seat through the opening. The two upper covers are respectively fixedly installed in the mounting grooves of the two ball seats to close the openings of the mounting grooves, and the upper covers are provided with arc-shaped accommodating grooves adapted to the ball heads. The ball heads are supported for turning in the arc-shaped accommodating grooves.

2. The universal pull rod structure for a webbing machine according to claim 1, characterized in that: The mounting groove is circular, and a first thread is provided on the side wall of the groove body. The upper cover is cylindrical. The arc-shaped accommodating groove is arranged at one end of the cylindrical upper cover. A second thread matching the first thread is provided on the outer peripheral wall of the upper cover, and the diameter of the upper cover matches the inner diameter of the mounting groove. The upper cover is fixedly installed in the mounting groove by thread locking.

3. A universal tie rod structure for a webbing machine according to claim 1, characterized in that: The upper cover is provided with a plurality of oil receiving grooves arranged uniformly at the inner bottom of the arc-shaped accommodating groove.

4. A universal pull rod structure for a webbing machine according to claim 1, characterized in that: A plurality of arc-shaped sliding ribs are arranged uniformly on the inner peripheral wall of the arc-shaped accommodating groove. Each arc-shaped sliding rib extends from the bottom of the arc-shaped accommodating groove to the opening end of the arc-shaped accommodating groove, and there is an interval between adjacent two arc-shaped sliding ribs.

5. A universal pull rod structure for a webbing machine according to claim 1, characterized in that: Both of the two ball heads are formed after grinding a sphere, and the ground part forms a plane. A connecting hole is arranged at the position of the plane of the ball head, and a third thread is provided on the inner side wall of the connecting hole. A fourth thread matching the third thread is provided at one end of the tie rod. The diameter of the tie rod matches the inner diameter of the connecting hole, and the tie rod is fixedly connected to the connecting hole by thread locking.

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