CN201176487Y

CN201176487Y - Double shaft drive of electronic jacquard machine

Info

Publication number: CN201176487Y
Application number: CNU2007201861075U
Authority: CN
Inventors: 汪建兴
Original assignee: HENGZHOU GEDAN NUMERICAL CODE TECHNOLOGY Co Ltd
Current assignee: HENGZHOU GEDAN NUMERICAL CODE TECHNOLOGY Co Ltd
Priority date: 2007-12-18
Filing date: 2007-12-18
Publication date: 2009-01-07
Anticipated expiration: 2017-12-18

Abstract

The utility model relates to a double-shaft driving device of an electronic jacquard, wherein the structure is that an A group of lower actuating mechanisms and a B group of upper actuating mechanisms are connected in parallel from the top to the bottom through using one synchronous belt together to form the double-shaft driving device of the electronic jacquard, the utility model adopts the double-shaft driving mechanism, the crank eccentricity is 3 to 5 times bigger than the driving radius of an original eccentric wheel structure, the driving radius is bigger, the impact force which is endured by bearings which are installed on cranks 3a and 3b is smaller, the abrasion of the bearings is smaller, the service life of the bearings is prolonged, the structure is simple, and the maintenance is convenient, which is beneficial for lowering the cost to produce.

Description

The dual-axis driving device of electronic jacquard machine

(1) technical field

The utility model relates to the dual-axis driving device of electronic jacquard machine, be used to handle the knee-action of griffing on the jacquard.

(2) technical background

The drive unit of existing electronic jacquard machine, installing approximately in eight or four bearings of whole employings, off-centre drives for the eccentric wheel of 2cm, the connecting rod that is fastened on when eccentric wheel rotates on the bearing is pushed the action swing, thereby manipulation is connected griffing on the balance staff and up and down reciprocatingly moves, this driving mechanism, its eccentric off-centre is very restricted, theoretically, off-centre is more little, the impulsive force that is subjected on the several connecting axles of driving mechanism is just big more, long-play causes the wearing and tearing and the breakage of bearing easily, thereby makes machinery and the exigent electronic jacquard machine of electronic signal synchronism cause needle selection multiselect or few choosing, has influenced the yield rate of product to a great extent.In this case, it can only increase eccentric wheel, causes its structural complexity so again, to having increased unnecessary production cost in the material consumption, and in part processing and installation and maintenance the more high shortcoming of specification requirement.

(3) summary of the invention

The defective that exists at the drive unit of above-mentioned electronic jacquard machine, to be exactly that the pendulous device of electronic jacquard machine is a large amount of when high speed eliminate the impact that driving mechanism parts connection bearing is produced and make its designs simplification technical problem to be solved in the utility model, and the dual-axis swing device of the electronic jacquard machine that a kind of bearing wear is little, cost is low is provided.

The dual-axis swing device of the utility model electronic jacquard machine, it comprises that two groups of composition: A of transmission mechanism organize underdrive mechanism on the A group underdrive mechanism B group identical with structure and comprises: driving shaft 1a, wallboard 2a, crank 3a, connecting rod 4a, swing arm 5a, balance staff 6a, synchronous pulley 7a, be with composition such as 8a synchronously; Transmission mechanism comprises on the B group: compositions such as driving shaft 1b, wallboard 2b, crank 3b, connecting rod 4b, swing arm 5b, balance staff 6b, synchronous pulley 7b is characterized in that: A group underdrive mechanism is provided with the dual-axis driving device that constitutes electronic jacquard machine with the last transmission mechanism of B group by parallel connection about the common synchronous band 8a.A group underdrive mechanism characteristics is: the two ends of driving shaft 1a are movably arranged on respectively on wallboard 2a and the wallboard 2b, crank 3a is fastened on the left end of driving shaft 1a, the end of connecting rod 4a is movably arranged on the crank 3a, the other end is arranged on the swing arm 5a, swing arm 5a is fastened on balance staff 6a left end, and the two ends of balance staff 6a are separately positioned on wallboard 2a and the wallboard 2b; The same quadrat method of last transmission mechanism of B group: the two ends of driving shaft 1b are movably arranged on respectively on wallboard 2a and the wallboard 2b, crank 3b is fastened on the right-hand member of driving shaft 1b, the end of connecting rod 4b is movably arranged on the crank 3b, the other end is arranged on the swing arm 5b, swing arm 5b is fastened on the right-hand member of balance staff 6b, and the two ends of balance staff 6b are movably arranged on respectively on wallboard 2a and the wallboard 2b.By shared one dual-axis driving device of being with 8a parallel up and down connection A group and B group transmission mechanism just to constitute electronic jacquard machine synchronously.

Advantage of the present utility model is: the utility model has adopted the twin shaft drives structure, the original eccentric wheel structure of its crank eccentricity ratio drives the big 3-5 of radius doubly, it is big more to drive radius, the impulsive force that the bearing that is installed in crank 3a and 3b is subjected to is just more little, bearing wear is also more little, bearing uses and prolongs, and simple in structure, easy to maintenance, helps low-cost production.

(4) description of drawings

Fig. 1 organizes the topology view that transmission mechanism combines for dual-axis swing device A, the B of electronic jacquard machine.

Fig. 2 is the dual-axis swing device B group transmission mechanism topology view of electronic jacquard machine.

Wherein A group underdrive mechanism element is: driving shaft 1a, wallboard 2a, crank 3a, connecting rod 4a, swing arm 5a, balance staff 6a, synchronous pulley 7a, be with 8a synchronously; Wherein the transmission mechanism part is on the B group: driving shaft 1b, wallboard 2b, crank 3b, connecting rod 4b, swing arm 5b, balance staff 6b, synchronous pulley 7b.

(5) specific embodiment

Below the utility model implementation process is described further:

(1) installation process: A group underdrive installation process: the two ends of driving shaft 1a are movably arranged on respectively on the lower bearing hole of wallboard 2a and wallboard 2b, crank 3a is fastened on the left end of driving shaft 1a, the end activity of connecting rod 4a is assemblied on the crank 3a, the other end of connecting rod 4a is assemblied on the swing arm 5a with bearing pin and bearing, swing arm 5a also is fastened on the high order end of balance staff 6a, and the two ends of balance staff 6a are installed in respectively on wallboard 2a and the wallboard 2b with bearing; Use the same method transmission mechanism on the B group is installed: driving shaft 1b two ends are movably arranged on respectively on the lower bearing hole of wallboard 2a and wallboard 2b, crank 3b is fastened on the right-hand member of driving shaft 1b, the end of connecting rod 4b is movably arranged on the crank 3b, the other end is arranged on the swing arm 5b, swing arm 5b is fastened on the right-hand member of balance staff 6b, and the two ends of balance staff 6b are movably arranged on respectively on wallboard 2a and the wallboard 2b.Be with the 8a parallel dual-axis driving device that connects and composes electronic jacquard machine up and down synchronously by shared one of synchronizing wheel 7a and synchronizing wheel 7b again.

(2) use: the dual-axis swing device of the novel electronic jacquard machine that provides of this enforcement, when driving shaft 1a and driving shaft 1b synchronizing wheel 7a, synchronizing wheel 7b and synchronously band synchronously band 8a be connected up and down that crank 3a and crank 3b also do synchronous 180 degree symmetry runnings when synchronizedly running, thereby make swing arm 5a and swing arm 5b do reciprocating motion in the other direction by connecting rod 4a and connecting rod 4b.Balance staff 6a and balance staff 6b when swing arm 5a and the twisting synchronously in the other direction of swing arm 5b do, realize that finally the fork traction on the balance staff griffes to do lifter motion up and down reciprocatingly respectively.

Claims

1, the dual-axis driving device of electronic jacquard machine, it is made up of transmission mechanism on A group underdrive mechanism and the B group, and the A group comprises driving shaft (1a), wallboard (2a), crank (3a), connecting rod (4a), swing arm (5a), balance staff (6a), synchronous pulley (7a), synchronous band (8a); Transmission mechanism comprises driving shaft (1b), wallboard (2b), crank (3b), connecting rod (4b), swing arm (5b), balance staff (6b), synchronous pulley (7b) on the B group, it is characterized in that A group underdrive mechanism and B group go up transmission mechanism by a shared synchronous dual-axis driving device of being with (8a) parallel up and down connection that the formation electronic jacquard machine is set.

2, by the described dual-axis driving device of claim 1, it is characterized in that described A organizes underdrive mechanism, the two ends of driving shaft (1a) are movably arranged on respectively on wallboard (2a) and the wallboard (2b), crank (3a) is fastened on the left end of driving shaft (1a), one end of connecting rod (4a) is movably arranged on the crank (3a), the other end is arranged in the swing arm (5a), and swing arm (5a) is fastened on balance staff (6a) left end, and the two ends of balance staff (6a) are movably arranged on respectively on wallboard (2a) and the wallboard (2b).

3, by the described dual-axis driving device of claim 1, it is characterized in that transmission mechanism on the described B group, the two ends of driving shaft (1b) are movably arranged on respectively on wallboard (2a) and the wallboard (2b), crank (3b) is fastened on the right-hand member of driving shaft (1b), one end of connecting rod (4b) is movably arranged on the crank (3b), the other end is arranged in the swing arm (5b), and swing arm (5b) is fastened on the right-hand member of balance staff (6b), and the two ends of balance staff (6b) are movably arranged on respectively on wallboard (2a) and the wallboard (2b).