CN2915902Y

CN2915902Y - Matched cam sheddding mechanism

Info

Publication number: CN2915902Y
Application number: CN 200620104060
Authority: CN
Inventors: 张永标; 王兴发; 徐孝明
Original assignee: 张永标
Priority date: 2006-05-29
Filing date: 2006-05-29
Publication date: 2007-06-27
Anticipated expiration: 2016-05-29

Abstract

The utility model relates to a matched cam sheddding mechanism. The utility model mainly aims at the existing technical problems that the driving structure is single and the control unit is a whole unit of cam, provides a matched cam sheddding mechanism which structure is reasonable and the drive is controlled by two groups of cam unit. The structure of the utility model comprises a camshaft, a cam which shaft is positioned on the camshaft and a driver gear, the cam unit is two groups of cam unit, one of which is positioned on the cam and driven by the cam, the other group of cam unit is positioned on the a gear disc and driven by the gear disc.

Description

The conjugate cam shedding motion

Technical field

The utility model relates to a kind of control device of field of textile machinery, especially relates to a kind of conjugate cam shedding motion.

Background technology

At present, the dobby device of domestic most arrow shaft weaving loom is all very heavy, volume is big, the structure action is complicated, generally be fixed on the bottom of weaving loom, the style of textile cloth is to determine according to the pattern of cam and quantity, and it is very inconvenient that general weaving loom will be changed cam, safeguards inconvenient, unstable properties, efficient is low, and dobby device is that middling speed is rotated heavily loaded parts, very easily damages, what of parts are all very crucial to the cost of the cost safeguarded and manufacturing, the dobby device parts of traditional textile machine are many, fragile, the cost height of manufacturing.As a kind of patent No. is the shuttleless rapier loom conjugate cam of CN02258064.6, and his structure is camshaft and cam, it is characterized in that cam utilizes the mode of interference fit to be fastenedly connected on camshaft; Counterbore radially is set on camshaft, the radial direction through hole corresponding with counterbore is set on cam, after taper bolt passes radial direction through hole on the cam, in the radially counterbore of insertion camshaft; Be installed on cam on the camshaft beat up conjugate cam and wefting insertion conjugate cam, the spacer that is enclosed within on the camshaft is set between the conjugate cam that beats up, wefting insertion conjugate cam.The shortcoming of this weaving loom is that fixed form is an interference fit, the production cost height, and gearratio is fixed, and is dumb, and efficient is low, safeguards inconvenient.

Summary of the invention

The utility model mainly is single at the existing in prior technology drive mechanism, and control volume is the technical problem of cam of one group of integral body etc., provides a kind of rational in infrastructure, is controlled the conjugate cam shedding motion of advantages such as its transmission by two groups of cams.

It is whole heavy that the utility model has also solved existing in prior technology simultaneously, and volume is big, and parts are many, consumable accessory is many, unstable properties, and efficient is low, the technical problem that cost is high provides a kind of rational in infrastructure, in light weight, volume is small and exquisite, and parts are few, few easy workout part, stable performance, the efficient height, cost is low, the active type conjugate cam shedding motion of advantages such as easy care.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: camshaft and the cam and the travelling gear that are axially fixed on the camshaft are formed, cam is two groups of cams, one group of cam is axially fixed on the camshaft, drive by camshaft, one group of cam is axially fixed on the toothed disc, is driven by toothed disc; Toothed disc has axial outstanding annulus, and the cam number on the toothed disc is two.

As preferably, described camshaft axially is connected with toothed disc, and the axial centre line overlap of camshaft and toothed disc, camshaft and toothed disc divide two kinds of angular speed to rotate, and an end of camshaft has travelling gear; Toothed disc is the hollow wheel gear dish, and toothed disc is enclosed within on the camshaft.

As preferably, there are two groups of travelling gears at the two ends of described power transmission shaft; One group of travelling gear driven gear dish rotates, and the gear that one group of travelling gear drives on the camshaft rotates.

As preferably, described camshaft is fixed by key and cam for axially passing the cam pivot, and the cam number can be regulated, and cam is 4 to 10, and toothed disc is for axially passing cam center; Size according to textile cloth is different with style, selects the cam combination of unequal number amount for use.

As preferably, described cam is replaceable, and cam can be the twill cam, and cam can be the straight burr cam; Size according to textile cloth is different with style, according to the needs change of producing, selects the combination of different twill cams and straight burr cam for use.

As preferably, described travelling gear is replaceable, and a travelling gear is in casing, and a travelling gear is outside casing; For the ease of adjusting and switching plain weave cam and twill cam, gear commonly used is contained in the outside of casing.

As preferably, described cam spacing is 4 to 6 millimeters; The spacing of cam is less, makes the whole less of casing, and efficient improves.

As preferably, the two ends of described camshaft are fixed with bearing, and bearing embeds in the bearing block, and bearing block embeds in the draw-in groove of casing, toothed disc by bearing fixing on power transmission shaft; Fix with bearing block, casing can be done also can fix when relatively thin more stable, on power transmission shaft, toothed disc and camshaft drive cam rotation with rotating speed separately to toothed disc by bearing.

As preferably, described camshaft downside has a fixed axis, and fixed axis is fixed on the casing, and the shedding sheet is arranged on the fixed axis, and the runner of shedding sheet leans against on the cam; Shedding sheet and cam mechanism are formed controlling organization, and the shedding sheet is controlled steel wire tow line.

Therefore, the utlity model has rational in infrastructurely, control its transmission by two groups of cams, in light weight, volume is small and exquisite, and parts are few, stable performance, and characteristics such as efficient height especially are few easy workout part, cost is low, easy care.

Description of drawings

Accompanying drawing 1 is the front view of a kind of structural representation of the present utility model;

Accompanying drawing 2 is side views of a kind of structural representation of the present utility model;

Accompanying drawing 3 is vertical views of a kind of structural representation of the present utility model;

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1, the cam 7 of gripping altogether of high accuracy manufacturing axially is installed on the camshaft 11, fix with key between camshaft 11 and the cam 7, cam is with certain angle mutual superposition, camshaft 7 is connected with toothed disc 4, be fixed with cam 6 with key on the toothed disc 4, two groups of cams rotate with gearratio separately, one end of camshaft 11 is fixed with travelling gear 8, toothed disc 4 is fixed on an end of camshaft 11, camshaft is fixed on the bearing, connect with bearing between toothed disc and the camshaft, the bearing fixing at axle two ends is on bearing block 5, bearing block is fixed on the casing 9, there are travelling gear 3 and travelling gear 10 in the two ends of power transmission shaft 12, travelling gear is replaceable, there is bearing at the two ends of power transmission shaft, bearing is fixed on power transmission shaft on the bearing block, bearing block is fixed on the casing, and the travelling gear at power transmission shaft two ends is meshed with travelling gear on camshaft and the toothed disc respectively, and the power transmission shaft middle part is fixed with power input drive bevel gear, the sprocket wheel of casing outside drives bevel gear and rotates, master gear drives bevel gear and rotates, and the bottom of camshaft has on fixed axis 1 fixed axis shedding sheet is installed, and the shedding sheet leans against on the cam.

During use, the chain wheeling driving gear rotates, driving gear drives driven wheel of differential and rotates, driven wheel of differential drives power transmission shaft and rotates, travelling gear and the travelling gear on the toothed disc that the travelling gear at power transmission shaft two ends drives on the camshaft rotate, camshaft and toothed disc rotate and drive two groups of cam rotations, and cam driven is carried brown arm reciprocally swinging.

Claims

1. conjugate cam shedding motion that is used for loom, the cam and the travelling gear that comprise camshaft (11) and be axially fixed on the camshaft (11) are formed, it is characterized in that cam is two groups of cams, one group of cam (7) is axially fixed on the camshaft (11), drive by camshaft (11), one group of cam (6) is axially fixed on the toothed disc (4), is driven by toothed disc (4).

2. conjugate cam shedding motion according to claim 1, it is characterized in that described camshaft (11) axially is connected with toothed disc (4), the axial centre line overlap of camshaft (11) and toothed disc (4), camshaft (11) divides two kinds of angular speed to rotate with toothed disc (4), and an end of camshaft (11) has travelling gear (8).

3. conjugate cam shedding motion according to claim 1 is characterized in that there are two groups of travelling gears at the two ends of described power transmission shaft.

4. according to claim 1 or 2 or 3 described conjugate cam shedding motions, it is characterized in that described camshaft (11) for axially passing the cam pivot, fixes by key and cam, the cam number can be regulated, cam is 4 to 10, and toothed disc (4) is for axially passing cam center.

5. according to claim 1 or 2 or 3 described conjugate cam shedding motions, it is characterized in that described cam is replaceable, cam can be the twill cam, and cam can be the straight burr cam.

6. according to claim 1 or 2 or 3 described conjugate cam shedding motions, it is characterized in that described travelling gear is replaceable, a travelling gear (3) is in casing (9), and a travelling gear (10) is outside casing (9).

7. according to claim 1 or 2 or 3 described conjugate cam shedding motions, it is characterized in that described cam spacing is 4 to 6 millimeters.

8. according to claim 1 or 2 or 3 described conjugate cam shedding motions, the two ends that it is characterized in that described camshaft (11) are fixed with bearing, bearing embeds in the bearing block (5), and bearing block (5) embeds in the draw-in groove of casing (9), toothed disc (4) by bearing fixing on power transmission shaft.

9. according to claim 1 or 2 or 3 described conjugate cam shedding motions, it is characterized in that described camshaft (11) downside has a fixed axis (1), fixed axis (1) is fixed on the casing (9), and shedding sheet (2) is arranged on the fixed axis, and the runner of shedding sheet (2) leans against on the cam.