CN104294465A - Space ellipsoid wefting insertion mechanism of rapier loom - Google Patents

Abstract

The invention relates to a space ellipsoidal weft insertion mechanism of a rapier loom. The purpose is to provide a weft insertion mechanism with the characteristics of reasonable design, easy processing, good adaptability, safe and reliable operation. The technical solution is: a space ellipsoidal weft insertion mechanism of a rapier loom, characterized in that it includes a space ellipsoid mechanism, a double rocker mechanism and a gear amplification mechanism; the main swing of the space ellipsoid mechanism and the double rocker mechanism The rods are connected to drive the active rocker to reciprocate, and the driven rocker of the double rocker mechanism is connected to the gear amplification mechanism to drive the sword belt of the gear amplification mechanism to reciprocate.

Description

A Spatial Ellipsoid Weft Insertion Mechanism for Rapier Looms

technical field

The invention relates to the technical field of textile machinery, in particular to a space ellipsoidal weft insertion mechanism of a rapier loom.

Background technique

The common weft insertion mechanisms of rapier looms mainly include space cam weft insertion mechanisms, variable pitch screw drive weft insertion mechanisms, and space four-link weft insertion mechanisms. The space cam weft insertion mechanism requires high precision and is difficult to process; the variable pitch screw drive weft insertion mechanism is difficult to manufacture and has low mechanical transmission efficiency, and one pitch cannot be used to manufacture various fabrics. The performance is poor; the design of the space four-bar linkage weft insertion mechanism is difficult; therefore, it is necessary to redesign a weft insertion mechanism to meet the production needs.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the above-mentioned background technology and provide a space ellipsoidal weft insertion mechanism for rapier looms, which should have the characteristics of reasonable design, easy processing, good adaptability, and safe and reliable operation.

To achieve the above object, the present invention adopts the following technical solutions:

A space ellipsoidal weft insertion mechanism for a rapier loom, characterized in that it includes a space ellipsoid mechanism, a double rocker mechanism and a gear amplification mechanism; the space ellipsoid mechanism is connected with the active rocker of the double rocker mechanism, and drives The active rocker swings back and forth, and the driven rocker of the double rocker mechanism is connected with the gear amplification mechanism to drive the sword belt of the gear amplification mechanism to reciprocate.

The space ellipsoid mechanism includes a space ellipsoid driven by a power element and a roller. The outer wall of the space ellipsoid is provided with a circle of grooves. One end of the roller is fixed on the active rocker, and the other end is connected to the insertion groove. Groove and match the groove.

The gear magnification mechanism includes intermeshing sector gears and pinion gears, intermeshing large bevel gears and small bevel gears, intermeshing sword pulleys and the sword belt; sector gears are fixedly connected to the driven rocker, The small bevel gear is connected with the large bevel gear through a vertical shaft, and the small bevel gear is connected with the sword pulley through a horizontal shaft.

The double rocker mechanism sequentially includes the active rocker, the connecting rod and the driven rocker, and the two ends of the connecting rod are respectively hinged with the active rocker and the driven rocker.

The active rocker is in the shape of a U-shaped opening, the space ellipsoid is located in the U-shaped opening of the active rocker, and the roller is fixed on the inner wall of the U-shaped opening of the active rocker.

The motion principle of the present invention is: the cooperation between the space ellipsoid 6 and the roller 21 in the space ellipsoid mechanism determines the law of weft insertion; The rocker 7 swings back and forth, and the active rocker drives the driven rocker 10-1 and the sector gear 11 to swing back and forth through the connecting rod 9; the sector gear meshes with the pinion to amplify the motion for the first time, and the large bevel gear 12- 1 meshes with the small bevel gear 12-2 to amplify the movement for the second time, and the sword belt wheel 15 meshes with the sword belt 14 to amplify the movement for the third time, and finally outputs to the sword belt 14 through the sword belt wheel 15, and the sword belt Form a reciprocating linear motion to obtain the final weft insertion motion law and produce the weft insertion action required by the rapier loom.

The beneficial effects of the present invention are: in the present invention, the groove contour of the space ellipsoid determines the law of weft insertion, and the space ellipsoid drives the double rocker by cooperating with the rollers, which can output the weft insertion movement law conveniently and quickly. Changing the outline of the groove can meet the rapier looms of different motion needs, and has strong adaptability; and the space ellipsoid has only one groove, which is convenient for design and processing, and it is easy to control the gap without pressing, and the operation is safe and reliable.

Description of drawings

Fig. 1 is one of the three-dimensional structure schematic diagrams of the present invention (cabinet is not installed).

Fig. 2 is the second perspective view of the present invention (box installed).

Fig. 3 is a schematic diagram of the three-dimensional structure of the space ellipsoid mechanism.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.

As shown in Figures 1 to 3, a space ellipsoid weft insertion mechanism for a rapier loom according to the present invention includes a space ellipsoid mechanism, a double rocker mechanism and a gear amplification mechanism installed in the box body 1-2 . The space ellipsoid mechanism is connected with the active rocker 7 of the double rocker mechanism, thereby driving the active rocker to reciprocate; the driven rocker 10-1 of the double rocker mechanism is connected with the gear amplification mechanism, thereby driving the gear amplification mechanism. The sword belt 14 reciprocates (the driven rocker does not directly contact with the sword belt, so the driven rocker indirectly drives the sword belt to move).

The space ellipsoid mechanism includes a space ellipsoid 6 and a roller 21 driven by a power element (generally a motor, omitted). The outer wall of the space ellipsoid is provided with a circle of grooves 6-1. One end is fixed on the active rocker 7, and the other end is inserted into the groove 6-1 and matched with the groove. The two ends of the rotating shaft 6-2 of the space ellipsoid are installed on the bottom plate 1-1 of the box body through the bearing 5, the bearing seat 3, and the bearing cover 4. The outline of the groove is determined according to the needs. Generally, the space ellipsoid The rotating shaft and the rotating shaft 8 of the active rocker and the axle sleeve 2 are vertically arranged. When the space ellipsoid rotates, the grooves force the rollers to reciprocate in the horizontal direction, thereby driving the active rocker to reciprocate. Generally, the grooves are opened around the larger diameter part of the middle part of the space ellipsoid.

The gear amplification mechanism includes a sector gear 11 and a pinion gear 17 meshing with each other, a large bevel gear 12 - 1 and a small bevel gear 12 - 2 meshing with each other, the sword pulley 15 and the sword belt 14 meshing with each other. The sector gear is fixedly connected with the driven rocker, the pinion and the large bevel gear are connected through a vertical shaft 16 (the diameter of the pinion is smaller than that of the large bevel gear), the vertical shaft is installed in the longitudinal shaft casing 1-3, and the bottom of the vertical shaft passes through the end Cover 18 and bearing are installed on the base plate of box body, pinion bevel gear and sword pulley are connected by cross shaft 13 (the diameter of pinion bevel gear is less than sword pulley), and cross shaft is installed in the cross shaft casing 1-5, and cross shaft One end of the shaft sleeve near the sword pulley is provided with a transparent cover 1-6, and the large bevel gear and the small bevel gear are installed in the elbow 1-4.

The double rocker mechanism includes the active rocker 7, the connecting rod 9 and the driven rocker 10-1 in sequence, and the two ends of the connecting rod are respectively hinged to the active rocker and the driven rocker. One end of the active rocker is rotatably installed between the bottom plate 1-1 and the casing 1-2 of the casing (the casing cover is on the bottom plate) by the rotating shaft 8, bearing and the blind cover 20, the other end of the active rocker Hinge with connecting rod. One end of the driven rocker is rotatably installed between the bottom plate and the casing of the casing through the sector gear shaft 10, the bearing and the end cover 19, and the other end of the driven rocker is hinged with the connecting rod. The active rocker is in the shape of a U-shaped opening, and the space ellipsoid is located in the U-shaped opening of the active rocker to save space, and the roller is fixed on the inner wall of the U-shaped opening of the active rocker. The outer wall of the sector gear shaft is integrally formed with two horizontally protruding arms, and the two arms form a certain angle with each other (the included angle is determined according to needs, such as 90-120 degrees), and one of the arms is used as the Driven by the rocker 10-1, the other arm 10-2 fixes the sector gear 11.

In the present invention, the spatial ellipsoid acts on the active rocker 7 of the double-rocker mechanism to output the motion law required by the weft insertion mechanism. The law is amplified by the gear amplification mechanism, and finally the sword belt can obtain weft insertion with good performance. Regularly, complete the weft insertion action.

Claims (5)

1. a kind of rapier loom space ellipsoid weft insertion mechanism is characterized in that: comprise space ellipsoid mechanism, double rocking bar mechanism and gear amplification mechanism; The active rocker of described space ellipsoid mechanism and double rocking lever mechanism ( 7) Connect, drive the active rocker to swing back and forth, the driven rocker (10-1) of the double rocker mechanism is connected with the gear amplification mechanism, and drive the sword belt of the gear amplification mechanism to reciprocate. 2. A space ellipsoid weft insertion mechanism for rapier looms according to claim 1, characterized in that: the space ellipsoid mechanism includes a space ellipsoid (6) driven by a power element and a roller ( 21), the outer wall of the space ellipsoid is provided with a circle of grooves (6-1), one end of the roller is fixed on the active rocker, and the other end is inserted into the groove and matched with the groove. 3. A spatial ellipsoidal weft insertion mechanism for rapier looms according to claim 1 or 2, characterized in that: the gear amplification mechanism includes sector gears (11) and pinion gears (17) meshing with each other, Meshing large bevel gear (12-1) and small bevel gear (12-2), mutually meshing sword pulley (15) and said sword belt (14); sector gear and said driven rocker (10- 1) fixedly connected, the pinion gear is connected with the large bevel gear through the vertical shaft (16), and the small bevel gear is connected with the sword pulley through the horizontal shaft (13). 4. A space ellipsoidal weft insertion mechanism for rapier looms according to claim 3, characterized in that: the double rocker mechanism sequentially includes the active rocker (7), the connecting rod (9) and the Describe the driven rocker (10-1), the two ends of the connecting rod are respectively hinged with the active rocker and the driven rocker. 5. A space ellipsoid weft insertion mechanism for rapier looms according to claim 4, characterized in that: the active rocker (7) has a U-shaped opening, and the space ellipsoid is located at the U-shaped opening of the active rocker. In the opening, the roller is fixed on the inner wall of the U-shaped opening of the active rocker.