Sector gear assembly structure for rapier loom

Abstract

The utility model relates to a fan-shaped gear assembly structure for a rapier loom, which belongs to the technical field of rapier looms and comprises a fan-shaped gear, a cross shaft fixedly connected with the fan-shaped gear is arranged at the lower end of the fan-shaped gear, and a plurality of column head screws fixedly sleeved with the fan-shaped gear in a threaded manner are arranged on the cross shaft. The fan-shaped gear comprises a fan-shaped disc, a fan-shaped tooth surface integrated with the fan-shaped disc is arranged on the outer circle of the fan-shaped disc, an assembly seat fixedly sleeved with the column head screw in a threaded mode is arranged between the fan-shaped disc and the cross shaft, and a weft insertion swing connecting hole for driving the fan-shaped disc to swing in a reciprocating mode is formed in the fan-shaped disc. The device has the characteristics of compact structure, simplicity in operation, good running stability and long service life. The problem that the weft insertion mechanism is poor in operation stability is solved. The continuity of the weft insertion process is improved, and the shuttling quality of wefts is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rapier loom technical field, concretely relates to a fan gear assembly structure for rapier loom. BACKGROUND

[0002] The rapier loom is the most widely used shuttleless loom, and it has the characteristics of high speed, high automation degree and high efficiency in addition to the characteristics of the shuttleless loom, and the active weft insertion mode has strong variety adaptability and can adapt to the weft insertion of various yarns, and the rapier loom also has obvious advantages in multi-color weft weaving and can produce up to 16 color weft yarns.

[0003] At present, the rapier loom adopts the form of the sword belt or the sword rod driving device, which mainly includes four connecting rods or six connecting rods and umbrella gear combination device, conjugate cam and connecting rod and umbrella gear combination device, space connecting rod and four connecting rod combination device and screw pair and connecting rod mechanism combination device.

[0004] Among them, the first three driving devices are too large in size, have many transmission links, many parts, high manufacturing cost, and great difficulty in installation and debugging; and in the last kind of screw pair and connecting rod combination device, the manufacturing precision of the variable pitch screw rod is high, the material requirement is also high, and the process difficulty is great, so that the manufacturing cost is high. SUMMARY

[0005] The utility model mainly solves the deficiency in prior art, provides a fan gear assembly structure for rapier loom, it has compact structure, simple operation, good running stability and long service life's characteristics. The problem of poor weft insertion mechanism running stability is solved. Improve the continuity of the weft insertion process, ensure the quality of weft shuttle.

[0006] The above technical problems of the utility model are mainly solved by the following technical schemes:

[0007] A fan gear assembly structure for rapier loom, including fan gear, the lower end of fan gear is equipped with the cross axle fixedly connected with fan gear, a plurality of set screws are equipped on the cross axle and are fixedly connected with fan gear in the form of thread, the fan gear includes a fan disc, a fan tooth surface is integrally arranged on the outer circle of the fan disc, an assembly seat is arranged between the fan disc and the cross axle and is fixedly connected with the set screw in the form of thread, a weft insertion swing connecting hole is arranged on the fan disc and is used to drive the fan disc to swing and run back and forth.

[0008] As preferred, a plurality of assembly bosses are arranged on the upper end surface of the cross axle and are matched with the assembly seat, a plurality of through holes are arranged on the assembly boss and are matched with the set screw, and a plurality of screw holes are arranged on the lower end of the assembly seat and are matched with the through hole.

[0009] As preferred, the assembling boss is provided with a positioning pin hole I, the assembling seat lower end is provided with a positioning pin hole II corresponding to the positioning pin hole I, and a cylindrical pin is arranged between the positioning pin hole I and the positioning pin hole II.

[0010] As preferred, the cross shaft lower end is provided with a number of counterbore grooves communicated with the through hole.

[0011] As preferred, the weft insertion oscillation connecting hole is provided with a light weight groove on both sides.

[0012] As preferred, the head screw and the cross shaft are provided with a spring washer sleeved with the head screw.

[0013] As preferred, the angle between the center line of the sector gear and the center point of the cross shaft is 13-15 degrees.

[0014] The utility model discloses can reach following effect:

[0015] The utility model provides a sector gear combination piece structure for rapier loom, compared with prior art, has compact structure, easy operation, good running stability and long service life's characteristics. The problem of poor running stability of weft insertion mechanism is solved. The continuity of weft insertion process is improved, and the quality of weft shuttle is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view structure schematic diagram of the utility model.

[0017] Figure 2 It is the side view structure schematic diagram of the utility model.

[0018] Figure 3 It is the top view three -dimensional structure diagram of the cross axle in the utility model.

[0019] Figure 4 It is the bottom view three -dimensional structure diagram of the cross axle in the utility model.

[0020] Figure 5 It is the side view structure schematic diagram of the sector gear in the utility model.

[0021] Figure 6 It is the bottom view structure schematic diagram of the sector gear in the utility model.

[0022] In the drawing: sector gear 1, cross axle 2, head screw 3, cylindrical pin 4, spring washer 5, assembling boss 6, positioning pin hole I 7, through hole 8, counterbore groove 9, sector gear face 10, sector disc 11, light weight groove 12, assembling seat 13, weft insertion oscillation connecting hole 14, positioning pin hole II 15, screw hole 16. DETAILED DESCRIPTION

[0023] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0024] Example: Figures 1-6 As shown, a sector gear assembly structure for a rapier loom includes a sector gear 1. A cross shaft 2, connected and fixed to the lower end of the sector gear 1, is provided. The angle between the centerline of the sector gear 1 and the center point of the cross shaft 2 is 13.97 degrees. Six stud screws 3, threadedly connected to the sector gear 1, are provided on the cross shaft 2. Spring washers 5, which are also threadedly connected to the stud screws 3, are provided between each stud screw 3 and the cross shaft 2. The sector gear 1 includes a sector disk 11. A sector tooth surface 10, integrally formed with the sector disk 11, is provided on the outer circumference of the sector disk 11. A mounting base 13, threadedly connected to the stud screws 3, is provided between the sector disk 11 and the cross shaft 2. A weft insertion swing connection hole 14, for driving the sector disk 11 to reciprocate, is provided on both sides of the weft insertion swing connection hole 14. Lightweight grooves 12 are provided on both sides of the weft insertion swing connection hole 14. The upper end face of the cross shaft 2 is provided with a pair of mounting bosses 6 that fit against the mounting base 13. Each mounting boss 6 has three through holes 8 that penetrate the cross shaft 2 and are fitted with stud screws 3. The lower end of the cross shaft 2 is provided with two countersunk grooves 9 that communicate with the through holes 8. The lower end of the mounting base 13 is provided with six screw holes 16 that correspond to the through holes 8. Each mounting boss 6 is provided with a locating pin hole I 7. The lower end of the mounting base 13 is provided with a locating pin hole II 15 that corresponds to the locating pin hole I 7. A cylindrical pin 4 is provided between the locating pin hole I 7 and the locating pin hole II 15.

[0025] In summary, the sector gear assembly structure for rapier looms features a compact structure, simple operation, good operational stability, and long service life. It solves the problem of poor operational stability in the weft insertion mechanism, improves the continuity of the weft insertion process, and ensures the quality of weft yarn movement.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A sector gear assembly structure for a rapier loom, characterized in that: The device includes a sector gear (1), the lower end of which is provided with a cross shaft (2) that is connected and fixed to the sector gear (1), and the cross shaft (2) is provided with a plurality of stud screws (3) that are threadedly connected and fixed to the sector gear (1); the sector gear (1) includes a sector disk (11), the outer circle of which is provided with a sector tooth surface (10) that is integrated with the sector disk (11), and an assembly seat (13) that is threadedly connected and fixed to the stud screws (3) is provided between the sector disk (11) and the cross shaft (2), and the sector disk (11) is provided with a weft insertion swing connection hole (14) for driving the sector disk (11) to reciprocate.

2. The sector gear assembly structure for a rapier loom according to claim 1, characterized in that: The upper end face of the cross shaft (2) is provided with several mounting bosses (6) that fit with the mounting base (13). Each mounting boss (6) is provided with several through holes (8) that pass through the cross shaft (2) and are fitted with the stud screw (3). The lower end of the mounting base (13) is provided with several screw holes (16) that are fitted with the through holes (8).

3. The sector gear assembly structure for a rapier loom according to claim 2, characterized in that: The mounting boss (6) is provided with positioning pin hole I (7), and the lower end of the mounting base (13) is provided with positioning pin hole II (15) corresponding to positioning pin hole I (7). A cylindrical pin (4) is provided between positioning pin hole I (7) and positioning pin hole II (15).

4. The sector gear assembly structure for a rapier loom according to claim 2, characterized in that: The lower end of the cross shaft (2) is provided with several countersunk grooves (9) that communicate with the through holes (8).

5. The sector gear assembly structure for a rapier loom according to claim 1, characterized in that: Lightweight grooves (12) are provided on both sides of the weft insertion swing connection hole (14).

6. The sector gear assembly structure for a rapier loom according to claim 1, characterized in that: A spring washer (5) is provided between the stud screw (3) and the cross shaft (2) and is fitted with the stud screw (3).

7. The sector gear assembly structure for a rapier loom according to claim 1, characterized in that: The angle between the center line of the sector gear (1) and the center point of the cross shaft (2) is 13 to 15 degrees.

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