CN219991838U - High-precision shedding mechanism of electronic jacquard - Google Patents

Abstract

A high-precision shedding mechanism of an electronic jacquard, belonging to the technical field of jacquard; through setting up two sets of cams, through setting up one end transition arc surface on the outer lane face of cam, the setting of transition arc surface drives the carriage and moves to the uppermost at the bearing, owing to the setting up of transition arc, the position that the bearing is located the highest point can lengthen to realize warp opening's extension, avoid the rapier tape to rub with warp and lead to warp fuzzing or weft insertion not in place; through also setting up the bearing at the lower extreme of carriage, the setting of lower extreme bearing can push down two lifting knife boards fast through the drive of cam to accelerate the folding speed of warp, avoid reducing jacquard's work efficiency because warp opening time increases.

Description

High-precision shedding mechanism of electronic jacquard

Technical Field

The utility model belongs to the technical field of jacquard, and particularly relates to a high-precision shedding mechanism of an electronic jacquard.

Background

The lifting movement of the blade box and the eye plate of the existing single-action type middle-opening jacquard is generally controlled by a link mechanism or a lever, and the problems caused by the lifting movement are as follows: the coordination between the opening produced by the lifting needle of the blade box and the two movements of the weft insertion is poor, and the shed effective time required by the weft insertion of the rapier loom cannot be met, namely: in the weft insertion process of the rapier band, the blade box descends too fast, warp folds too early, and the phenomenon that warp yarns are fluffed and weft yarns are not inserted in place easily caused by serious friction between the warp yarns and the rapier band. To solve the above problem, some solutions for increasing the height of the lifting needle of the blade box are adopted in the prior art, however, such solutions have drawbacks: not only increases the vibration of the whole machine and affects the speed increase of the vehicle, but also the weft insertion time is tense and the effect is not ideal.

Disclosure of Invention

The utility model mainly solves the technical problems existing in the prior art and provides a high-precision shedding mechanism of an electronic jacquard.

The technical problems of the utility model are mainly solved by the following technical proposal: the utility model provides a high-precision opening mechanism of electronic jacquard, includes the main shaft, the symmetry is equipped with two sets of cams on the main shaft, two sets of cams all include two cams, two cams set up in the opposite direction, two cams of the inboard in two sets of cams set up in the opposite direction, two cams of the outside in the cam sets set up in the opposite direction, be equipped with one section transition arc surface on the outer lane face of cam one end that keeps away from the main shaft, the diameter of transition arc is greater than the diameter of cam, two sets of cams set correspond the position and all are equipped with a set of knife subassembly, knife subassembly includes two sets of sliding group, every set of sliding group includes a slide base, every be equipped with a carriage in the slide base, the carriage is located the front side of main shaft, the intermediate position of carriage is equipped with a sliding groove, the carriage wears to the main shaft through the sliding groove, the front end and the slide base sliding connection of carriage, the upper and lower both ends of carriage are equipped with a pivot respectively, two are equipped with one respectively the pivot that the cam face corresponds each other the bearing plate is equipped with in the bearing plate after the two on the upper and lower ends of carriage,

preferably, an upper cutter lifting plate is connected between the upper ends of the two cutter lifting support plates in the sliding groups positioned on the outer sides in the two cutter lifting assemblies.

Preferably, a lower cutter lifting plate is connected between the upper ends of the two cutter lifting support plates in the sliding groups positioned on the inner sides in the two cutter lifting assemblies.

The utility model has the beneficial effects that: through setting up two sets of cams, through setting up one end transition arc surface on the outer lane face of cam, the setting of transition arc surface drives the carriage and moves to the uppermost at the bearing, owing to the setting up of transition arc, the position that the bearing is located the highest point can lengthen to realize warp opening's extension, avoid the rapier tape to rub with warp and lead to warp fuzzing or weft insertion not in place; through also setting up the bearing at the lower extreme of carriage, the setting of lower extreme bearing can push down two lifting knife boards fast through the drive of cam to accelerate the folding speed of warp, avoid reducing jacquard's work efficiency because warp opening time increases.

Drawings

FIG. 1 is a schematic view of a construction of the present utility model;

fig. 2 is a schematic view of a sliding group according to the present utility model.

In the figure: 1. a main shaft; 2. a cam; 3. a transitional arc surface; 4. a sliding base; 5. a carriage; 6. a sliding groove; 7. a rotating shaft; 8. a bearing; 9. a cutter lifting support plate; 10. lifting a knife board; 11. and (5) lifting the knife board downwards.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: the utility model provides a high-precision shedding mechanism of electronic jacquard, as shown in figure 1-figure 2, including main shaft 1, the symmetry is equipped with two sets of cam groups on main shaft 1, two sets of cam groups all include two cams 2, two cams 2 are opposite to each other set up, two cams 2 of inboard in the cam group correspond each other set up, two sets of cams 2 of the outside in the cam group correspond each other set up, be equipped with one section transition arc surface 3 on the outer lane face that main shaft 1 was kept away from to cam 2, the diameter of transition arc is greater than the diameter of cam 2, two sets of cam groups correspond the position and all are equipped with a set of knife assembly, knife assembly includes two sets of sliding group, and every group sliding group includes a slide base 4, is equipped with a carriage 5 in the slide base 4, the carriage 5 is located the front side of main shaft 1, the intermediate position of carriage 5 is equipped with a slide groove 6, carriage 5 wears on main shaft 1 through slide groove 6, the front end and the slide base 4 of carriage are equipped with two pivot strips 8 on the side of bearing strip 8 are all equipped with to the pivot strip 7 on each side of bearing strip 8, the pivot strip 8 is equipped with each other on the bearing strip 8,

an upper cutter lifting plate 10 is connected between the upper ends of two cutter lifting support plates 9 in the sliding groups positioned on the outer sides in the two cutter lifting assemblies; a lower cutter lifting plate 11 is connected between the upper ends of the two cutter lifting support plates 9 in the sliding groups positioned on the inner sides in the two cutter lifting assemblies.

The principle of the utility model is as follows: when the rotary lifting device is used, the main shaft 1 is controlled to rotate, the two cam groups are driven to rotate around the main shaft 1 by the rotation of the main shaft 1, the two slide groups in each lifting knife assembly are driven to slide up and down by the rotation of the two cam groups, as the two cams 2 in each cam group are oppositely arranged, one ends of the two cams 2 far away from the main shaft 1 are opposite, when the two slide groups slide, the two cams 2 on the inner side in the two cam groups are oppositely arranged, the two cams 2 on the outer side in the two cam groups are correspondingly arranged, when the main shaft 1 rotates, the two slide groups on the inner side synchronously slide, the two slide groups on the outer side synchronously slide to respectively drive the lifting knife plate 10 and the lower lifting knife plate 11 to slide, so that the opening of warp is realized, in the sliding process of the slide groups, the bearing 8 on the upper side plays a role of driving the slide frame 5 to move up, the bearing 8 is attached to the outer ring surface of the cam 2, the rotation of the cam 2 lifts the slide frame 5, when the bearing 8 rolls to the arc surface 3, the slide frame 5 stops to the arc surface, the bearing 5 stops to lift up, the bearing 5 is kept at the height, the time after the bearing 8 is kept to move down, and the bearing 5 rolls down, and the roller frame 5 is driven to slide down, so that the roller frame 5 is pushed down, and the roller frame is closed.

Finally, it should be noted that the above embodiments are merely representative examples of the present utility model. Obviously, the utility model is not limited to the above-described embodiments, but many variations are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model should be considered to be within the scope of the present utility model.

Claims (3)

1. The utility model provides a high-accuracy shedding mechanism of electronic jacquard, includes main shaft (1), its characterized in that: the main shaft (1) is symmetrically provided with two groups of cam groups, each cam group comprises two cams (2), the two cams (2) are oppositely arranged, the two cams (2) on the inner side in each cam group are correspondingly arranged, the two cams (2) on the outer side in each cam group are correspondingly arranged, a section of transition arc surface (3) is arranged on the outer ring surface of one end of the cam (2) far away from the main shaft (1), the diameter of the transition arc surface is larger than that of the cam (2), the two groups of cam groups are respectively provided with a group of lifting knife assemblies, each lifting knife assembly comprises two groups of sliding groups, each sliding group comprises a sliding base (4), each sliding base (4) is internally provided with a sliding frame (5), the sliding frames (5) are arranged on the front side of the main shaft (1), the middle positions of the sliding frames (5) are provided with a sliding groove (6), the sliding frames (5) penetrate through the sliding groove (6) on the main shaft (1), the sliding frames (5) are respectively provided with two sliding frames (7) which are correspondingly connected with the outer ring surfaces (8) of the two sliding frames (8), the two sliding frames (7) are respectively provided with the corresponding rotating shafts (8), the rear end of the sliding frame (5) is provided with a cutter lifting support plate (9).

2. The high-precision shedding mechanism of an electronic jacquard machine according to claim 1, wherein: an upper cutter lifting plate (10) is connected between the upper ends of the two cutter lifting support plates (9) in the sliding groups positioned on the outer sides in the two cutter lifting assemblies.

3. The high-precision shedding mechanism of an electronic jacquard machine according to claim 1, wherein: a lower cutter lifting plate (11) is connected between the upper ends of the two cutter lifting support plates (9) in the sliding group positioned on the inner side in the two cutter lifting assemblies.