CN101709526A

CN101709526A - Support mechanism for connecting rod overhead type return device

Info

Publication number: CN101709526A
Application number: CN200910212835A
Authority: CN
Inventors: 彭晓红; 李金华; 顾建锋; 卫明; 李立
Original assignee: Changshu Textile Machinery Works Co Ltd
Current assignee: Changshu Textile Machinery Works Co Ltd
Priority date: 2009-10-30
Filing date: 2009-10-30
Publication date: 2010-05-19

Abstract

The invention relates to a support mechanism for a connecting rod overhead type return device, which belongs to the technical field of textile machinery. The support mechanism comprises a pair of bases, a support beam, two pairs of rocker arm axle seats and base plates, wherein the support beam comprises a first beam body and a second beam body; support rods are fixed in the length directions of the first base and the second base in a spaced way; one of the two pairs of the rocker arm axle seats are fixed at both ends of the inner wall of the first beam body, and the other pair of the rocker arm axle seats are fixed at both ends of the inner wall of the second beam body; one pair of rocker arm axle seats fixed on the inner wall of the first beam body correspond to the rocker arm axle seats fixed on the inner wall of the second beam body; and the base plates are fixed at the upper parts of one ends of the first beam body and the second beam body. The invention can ensure that the return device is stably operated to be adapted to the high-speed movement requirement of a dobby and meet the high-efficiency opening requirement of the return device.

Description

The supporting device that connecting rod overhead type return device is used

Technical field

The invention belongs to technical field of textile machine, be specifically related to the supporting device that a kind of connecting rod overhead type return device is used.

Background technology

On loom, finish the harness motion of heald frame, except being equipped with various shedding mechanisms for example flat-bed machine, cam, dobbies or the jacquard, also need the supporting return device that is fit to various shedding mechanisms, the return device of shedding mechanism can be divided into passive type spring flowing heald device and active type connecting rod return device.Active type connecting rod return device is the harness motion that utilizes the power realization heald frame of shedding mechanism.

With dobbies (also claiming dobby device) is example, the connection of itself and return device need be ensured by supporting device, Figure 2 shows that the structure chart of the supporting device of the connecting rod overhead type return device in the prior art, comprise a pair of base 1, one backbar 2, two pairs of rocker shaft bed 3 one bedplates 4, one end of backbar 2 and one of them base 1 in a pair of base 1 are fixing, another base 1 in the other end of backbar 2 and a pair of base 1 is fixing, two pairs of rocker shaft beds 3 are arranged on the middle part of backbar 2, and be positioned on the top surface of backbar 2, bedplate 4 is positioned at an end (being illustrated as right-hand member) of backbar 2, be used for fixing with it, that is: dobbies 6 is installed on the backbar 2 for dobbies 6.In Fig. 2, also show connecting rod overhead type return device 5 and heald frame 7, this return device 5 comprises first, second connecting rod 51,55, first, second Rocker

arm

52,54, connecting rod 53 and opening connecting rod 56, one end of opening connecting rod 56 and the opening arm of dobbies 6 61 connect, the other end and second Rocker arm 54 connect, second Rocker arm 54 also simultaneously with a client link of connecting rod 53 and with the last client link of second connecting rod 55, the lower end of second connecting rod 55 and heald frame 7 connect, second Rocker arm 54 is arranged on the wherein a pair of rocker shaft bed 3 in two pairs of rocker shaft beds 3 rotationally by second rocker arm shaft 541, one client link of the other end of aforesaid connecting rod 53 (illustrated left end) and first Rocker arm 52, the last client link of the other end of first Rocker arm 52 and head rod 51, and the lower end of head rod 51 and heald frame 7 connects, and the middle part of first Rocker arm 52 is arranged in two pairs of rocker shaft beds 3 another on the rocker shaft bed 3 by first rocker arm shaft, 521 pivots.The operation principle of the return device 5 of said structure form can be referring to the specification of the Chinese utility model patent Granted publication CN2895457 (active type connecting rod overhead type return mechanism) that is applied for by the applicant, so the applicant is no longer given unnecessary details.Yet it may be noted that, the supporting device of aforementioned structure has shortcoming, be embodied in: because a pair of rocker shaft bed 3 is set on the end face of backbar 2, lay respectively at the two ends of backbar 2, therefore the focus of work of return device 5 is higher, opening arm 61 drives second when dobbies 6, first Rocker arm 54, during 52 swings synchronously, simultaneously by second, head rod 55, during 7 motions of 51 drive heald frames, tediously long backbar 2 can cause the vibration of whole return device 5, influence the work effect of return device 5, particularly when the operating rate of dobbies situation at 550-600n/min, because the high speed reciprocating motion of return device 5, add the vibration of dobbies 6 self, supporting mass 2 can obviously show phenomenon unable to do what one wishes, promptly produce distortion and even fracture, and then influence the work effect of return device 5, can't work when serious.As seen above-mentioned supporting device also is not suitable for the work of high-speed dobbies 6.

In view of this, be necessary that the supporting device that the connecting rod overhead type return device in the prior art is used rationally improves, to avoid the generation of above-mentioned unfavorable factor, technical scheme described below produces under this background.

Summary of the invention

Task of the present invention is to provide a kind of and helps to ensure the stationarity of return device work and use the high-speed motion that adapts to dobbies and require the supporting device used with the connecting rod overhead type return device that embodies the high efficiency opening of return device.

Task of the present invention is finished like this, the supporting device that a kind of connecting rod overhead type return device is used, comprise a pair of base, one backbar, the two pairs of rocker shaft beds and bedplate, described backbar is to be made of at the length direction first beam body and the second beam body parallel to each other a pair of, first, one of them base in one end of the second beam body and the described a pair of base is fixed, and first, another base in the other end of the second beam body and a pair of base is fixed, first, fixed interval has support bar on the length direction of second base, wherein a pair of rocker shaft bed in described two pairs of rocker shaft beds is fixed on the two ends of the inwall of the first beam body, and another is fixed on the two ends of the inwall of the second beam body to rocker shaft bed, wherein, the a pair of rocker shaft bed that is fixed on the inwall of the first beam body is corresponding with the rocker shaft bed on the inwall that is fixed in the second beam body, and described bedplate is fixed on first, the top of one end of the second beam body.

The shape of cross section of first, second beam body of the present invention respectively is the Contraband font.

The top of one end of the length direction of first, second beam body of the present invention also is furnished with a link, and the two ends of the bottom of link are fixed with the upper edge of first, second beam body respectively.

Technical scheme provided by the invention by be set parallel to each other on base first; the second beam body constitutes backbar; two pairs of rocker shaft beds are installed on first; on the corresponding inwall of the second beam body; the strength and stiffness of backbar have not only been promoted; and can avoid because of the vibration of the tediously long return device that causes of backbar of the vibration of loom and wide cut loom and the distortion and the fracture of backbar; because the installation site of rocker shaft bed has obtained reduction; thereby the center of gravity of dobbies and whole return device is moved down; therefore can guarantee the return device stable working and adapt to the high-speed motion requirement of dobbies, satisfy the high efficiency opening requirement of return device.

Description of drawings

Fig. 1 is one embodiment of the invention and application examples structure chart.

The schematic diagram of the supporting device that Fig. 2 uses for the connecting rod overhead type return device in the prior art.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the present invention program, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.

Ask for an interview Fig. 1, the a pair of base 1 that provides also can be referred to as support, identical with prior art, this corresponds to each other to base 1, join intrinsic backbar 2 at this on to base 1, as technical essential of the present invention, by a pair of length direction parallel to each other and shape of cross section be first of Contraband shape, the second beam body 21,22 constitute backbar 2, that is to say that backbar 2 is made of a pair of channel-section steel that is provided with that faces each other, first, the second beam body 21, an end separately of 22 is that illustrated right-hand member is fixing with a base 1 on the right with bolt 24, and first, the second beam body 21,22 the other end is that left end shown in Figure 1 is fixed with the bolt 24 and a base 1 on the left side equally.In order to ensure the strong bond of the integral body between first, second beam body 21,22 further, length direction at first, second beam body 21,22 links the support bar 23 that has one group of quantity not illustrated restriction at interval, when reply wide cut loom, because of the length of backbar 2 correspondingly long, therefore the quantity of support bar 23 can correspondingly increase, and vice versa.Constitute working chamber 25 separately between a pair of first, second beam body 21,22.In Fig. 1, illustrated to be fixedly arranged on a pair of rocker shaft bed 3 on the inwall of the second beam body 22, specifically be each rocker shaft bed 3 and the second beam body 22 is fixing, but also can adopt welding or other similar fixed form that the rocker shaft bed 3 and the second beam body 22 are fixed with one group of screw 32 (at least 2 screws).The fixed form that is positioned at a pair of rocker shaft bed 3 on the inwall of the first beam body 21 is identical with the fixed form of rocker shaft bed 3 on being positioned at the second beam body 22, the a pair of rocker shaft bed 3 that is positioned on the first beam body 21 should be corresponding with the rocker shaft bed 3 on being positioned at the second beam body 22, and each rocker shaft bed 3 is furnished with shaft-cup 31 far and away.Bedplate 4 is placed in the stepped portions that first, second beam body 21,22 1 ends promptly illustrate left end, and bedplate 4 also can be described as machine seat board, because it is used for scooping out dobbies 6, that is to say that dobbies 6 is found a place for is fixed on the bedplate 4.Be furnished with a link 8 at the left end of first, second beam body 21,22 equally in addition, obviously, this link 8 follows bedplate 4 to be used for implementing fixing to the following dobbies that also will mention 6.

Please continue to see Fig. 1, provided connecting rod overhead type return device 5, this connecting rod overhead type return device 5 comprises first, second connecting rod 51,55, first, second Rocker

arm

52,54, connecting rod 53 and opening connecting rod 56, one end of opening connecting rod 56 and the opening arm of dobbies 6 61 connect, one client link of the other end and second Rocker arm 54, one client link of the other end of second Rocker arm 54 and connecting rod 53, one client link of the other end of connecting rod 53 and first Rocker arm 52, the upper end of head rod 51 and second Rocker arm 54 connect, lower end and heald frame 7 connect, the last client link of the other end of first Rocker arm 52 and second connecting rod 55, the lower end of second connecting rod 55 and heald frame 7 connect, first Rocker arm 52 has one first rocker arm shaft 521, and second Rocker arm 54 has one second rocker arm shaft 541, first, second rocker arm shaft 521,541 are supported on the aforesaid rocker shaft bed 3 and each is protected by shaft-cup 31 lids, with shaft-cup screw 311 that shaft-cup 31 is fixing with rocker shaft bed 3.Shown in figure, aforesaid link 8 was both fixing with first, second beam body 21,22 by one group of link set bolt 81, and was fixing with dobbies 6 again.

And then by shown in Figure 1, (flanging at the position up and down of length direction) respectively constitutes circular arc R in the bending place for first, second beam body 21,22, and circular arc R can be promoted intensity.

The operation principle and the prior art of aforementioned connecting rod overhead type return device 5 are identical, the disclosed active type connecting rod overhead type return of the Chinese utility model patent Granted publication CN2895457Y mechanism that for example visible applicant has mentioned in the background technology hurdle, therefore, no longer repeat.The applicant is used for the present invention program the wide cut loom under confidential state, rotating speed is 550-600n/min, the result has shown desirable effect, and the service behaviour of whole active type connecting rod overhead type return device obviously improves, and has reached the high efficiency harness motion requirement of low vibration.The present invention program can satisfy the instructions for use of active type connecting rod overhead type return device of the water jet looms of various wide cuts.

Claims

1. supporting device that connecting rod overhead type return device is used, comprise a pair of base (1), one backbar (2), two pairs of rocker shaft beds (3) and bedplate (4), it is characterized in that described backbar (2) is to be made of at the length direction first beam body (21) and the second beam body (22) parallel to each other a pair of, first, the second beam body (21,22) one of them base (1) in a end and the described a pair of base (1) is fixing, and first, the second beam body (21,22) another base (1) in the other end and a pair of base (1) is fixing, first, fixed interval has support bar (23) on the length direction of second base (1), wherein a pair of rocker shaft bed (3) in described two pairs of rocker shaft beds (3) is fixed on the two ends of the inwall of the first beam body (21), and another is fixed on the two ends of the inwall of the second beam body (22) to rocker shaft bed (3), wherein, the a pair of rocker shaft bed (3) that is fixed on the inwall of the first beam body (21) is corresponding with the rocker shaft bed (3) on the inwall that is fixed in the second beam body (22), and described bedplate (4) is fixed on first, the second beam body (21, the top of an end 22).

2. the supporting device that connecting rod overhead type return device according to claim 1 is used is characterized in that the shape of cross section of described first, second beam body (21,22) respectively is the Contraband font.

3. the supporting device that connecting rod overhead type return device according to claim 1 is used, the top of an end that it is characterized in that the length direction of described first, second beam body (21,22) also is furnished with a link (8), and the two ends of the bottom of link (8) are fixed with the upper edge of first, second beam body (21,22) respectively.