CN1740424A

CN1740424A - Cloth feeding rod mechanism of cylindrical sewing machine

Info

Publication number: CN1740424A
Application number: CN 200410057057
Authority: CN
Inventors: 小关胜美
Original assignee: Chee Siang Industrial Co Ltd
Current assignee: Chee Siang Industrial Co Ltd
Priority date: 2004-08-25
Filing date: 2004-08-25
Publication date: 2006-03-01

Abstract

The present invention is cloth feeding rod mechanism of cylindrical sewing machine, which has relatively high raised part, is named as high column sewing machine and may be assembled and disassembled without need of being laid down. The cloth feeding rod mechanism includes one roller below the crankshaft, one lower fork connected to the cam fixed onto the lower shaft, one shaft to fixed pivoted to the rack fixed on the rocking shaft, semi-circular notch in the bottom for the roller to be connected on, clamp to avoid the right-left shift of the cloth feeding rod and locking screw to holding the roller. The cloth feeding rod may be taken out after unscrewing the roller from the clamp, and may be assembled or member replaced easily. It may be trimmed up and down during sewing and has high production efficiency and high maintenance efficiency.

Description

The work feed linkage of cylindricality Sewing machines

Technical field

The present invention relates to a kind of cylindricality Sewing machines, refer in particular to a kind of body form of making that cooperates, the light more work feed linkage of the modular cylindricality Sewing machines of changing device.

Background technology

Fig. 1 is the organigram of cylindricality Sewing machines, and Fig. 2 is the combination section of known work feed linkage.

Head 1, have needle bar device 4, balance unit, on send device and seam order adjusting device etc., through with after middle 8 combines, combination above base 9.Going up when axle utilizes of not indicating among the figure advised the belt transmitting rotary power to lower shaft 18, and gear 10 is transformed into vertical direction power with the power of lower shaft then.

High post 12 is fixed in the column base 11 of base 9 tops, has a rotary shuttle shaft base 14 in the top; Needle plate 14 ' is to be fixed on rotary shuttle shaft base 14 sides; Work feed bar 13, its formation are included in the work feed tooth 15 of the auxiliary work feed in upper end, and almost with base 9 top consistent location, with the cloth feeding crank 24 of screw 25 ' in conjunction with assembling, use conduction work feed tooth up and down with the amount of moving horizontally.

Crank 24, its formation comprises via the support 21 that is fixed on axis of rocking 20, it is auxiliary that utilization axle 22 freely rotates, to drive the device that cloth feeding crank 24 shakes as level, and there is a prong 23 to be fixed in the cloth feeding crank bottom with screw 23 ', be engaged on the cam 19 that is fixed on lower shaft 18 by prong 23 again, the work feed bar is moved up and down; When unclamping screw 23 ', prong 23 and crank 24 can according to Fig. 2 towards moving as above-below direction, the upper-lower position of promptly variable work feed tooth 15.

Except the following high post of the explanation device partly, work feed bar 13 wherein, needle plate 14 ', work feed tooth 15, all the other members all are fixed on the base 9.As above-mentioned, be assembled in each device of base 9 the insides, wherein in the conduction mechanism of base the inside combination, must push over Sewing machines earlier and just can see the base the inside, so just can in conjunction with or dismantle each assembly; In order to make work feed bar 13 and cloth feeding crank 24 link combination, must take off the prong 23 of crank 24 belows earlier, and continue to make work feed bar (referring to Fig. 2) to move down, be positioned at the position of easy insertion work feed bar 13 up to screw 25 '.

The inventor is because above-mentioned known technology, more must push over Sewing machines during changing device at high post, the relation of weight hampers operating efficiency unavoidably because of the volume of this Sewing machines adds greater than general Sewing machines.

Summary of the invention

The technical problem to be solved in the present invention is: a kind of work feed linkage of cylindricality Sewing machines is provided, and it can solve the defective of known technology, and need not push over Sewing machines, can be easily changing device more.

Technical solution of the present invention is: a kind of work feed linkage of cylindricality Sewing machines, and it is the work feed bar that is installed in high post one side on the sewing machine base, need not push over Sewing machines, promptly dismantled and assembled cylindricality Sewing machines; Wherein: the crank upper end of work feed linkage bottom has a roller bearing, and the groove that has a semicircle in work feed bar bottom, and the center of roller bearing is consistent with semicircular groove center and can engage, and clamp the roller bearing periphery with a clip trip that is fixed on work feed bar lower end one side, and prevent moving up and down.

Characteristics of the present invention and advantage are: the present invention mainly is made as semicircular groove in the work feed bar bottom of cylindricality Sewing machines, and the center of semicircle is consistent with corresponding roller bearing axle center, and can be provided with trip to avoid move left and right, can clamp the roller bearing of corresponding configuration simultaneously.In addition, the work feed bar of this case is selected up and down and is separated, and is provided with stacked position after stacked position configuration eccentric shaft, can move up and down.According to and, the work feed bar of cylindricality Sewing machines of the present invention need not push over Sewing machines, can easily organize and put or change member; And make the inching that Shi Kezuo transmits up and down, significantly to improve operation and maintenance efficiency.

Description of drawings

Fig. 1 is the unitary construction floor map of known technology.

Fig. 2 is the work feed linkage combination section of known technology.

Fig. 3 A and 3B are vertical view of the present invention and the main combination section of looking.

Fig. 4 A to Fig. 4 C is that key diagram is torn/adorned to work feed bar of the present invention open.

Fig. 5 A to Fig. 5 C is the roller bearing clip trip embodiment stereogram among the present invention.

Fig. 6 is the three-dimensional exploded view of the embodiment of the invention.

Fig. 7 is the embodiment three-dimensional exploded view of work feed bar of the present invention.

The drawing reference numeral explanation:

1, head 4, needle bar device 8, middle tube 9, base

10, gear 11, column base 12, high post 13, work feed bar

14, rotary shuttle shaft base 14 ', needle plate 15, work feed tooth 18, lower shaft

19, cam 20, axis of rocking 21, support 22, axle

21 ', 23 ', 25 ', screw 23, prong 24, crank

25, roller bearing 26, fixed head 27, have screw the

axle

28,29, the clip trip

30,

brake

31,33, screw 35,

eccentric shaft

13a, 13b, groove

28a, 29a,

groove

28b, 29b, inclined-plane

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.

Fig. 3 is that device vertical view of the present invention and master look constitutional diagram, and Fig. 4 is that key diagram is torn/adorned to work feed bar of the present invention open, and Fig. 5, Fig. 6 are schematic perspective views of the present invention, and Fig. 7 is the schematic perspective view of lower separation device on the work feed bar.

At first see also shown in Fig. 3 A and the 3B, brake 30 is fixed on the support 21 of axis of rocking 20, so that work feed bar 13 can engage in same position at any time.Cam 19 is the cams of transmission up and down that possess axial length, when prong 23 moves axially, is closed state with cam 19, can not break away from.The screw 21 ' that support 21 is fixed in axis of rocking 20 is with respect to 90 ° of directions of traditional machine change, sees through the perforation that does not indicate among the figure this support that can lock above base.Roller bearing 25 is that to utilize screw 33 to be fixed on crank 24 upper ends rotatable, and parallel with lower shaft 18.

Work feed bar 13 engages based on matching with aforesaid roller bearing 25, and is provided with the semi-circular recesses 13a consistent with roller bearing 25

centers.Clip trip

28,29 is located between work feed bar 13 and the fixed head 26, utilizes the axle 27 have screw as fulcrum, and has semicircle groove 28a, the 29a identical with roller bearing 25, can reach consistent with the axle center of semi-circular recesses 13a after installing.And above fulcrum, having inclined-

plane

28b, 29b, the front end of screw 31 is spherical, is resisted against inclined-plane 28b, the 29b of

clip trip

28,29 through screwing togather of fixed head 26; When toward fastening direction when screwing screw, its pressure will via the inclined-plane make

clip trip

28,29 with the axle 27 that has screw as fulcrum, the back that turns to the inside is to clamp the periphery of roller bearing 25; After untiing the clip trip, can take out work feed bar 13 when unclamping screw 31 again.

As above-mentioned see also again shown in Figure 7, it is two-period form work feed bar constructed embodiment figure, the groove 13b of following work feed bar upper end is used for can slide up and down with the lower end tabling of last work feed bar 13 ', be provided with the perforation of an eccentric shaft 35 in the central, the eccentric part of eccentric shaft 35 be arranged on work feed bar 13 ' on level after slotted hole engages, under the rotation of eccentric shaft 35, last work feed bar 13 ' can move up and down in the extent of the error of eccentric shaft 35, so can set the projecting height of work feed tooth according to the article of making.

Comprehensive above content is described, and Sewing machines need not push in mechanism of the present invention, can easily assemble, change the work feed linkage in the high post, and does the inching that transmits up and down when making, and can significantly improve operation and maintenance efficiency.

Claims

1. the work feed linkage of a cylindricality Sewing machines, it is the work feed bar that is installed in high post one side on the sewing machine base, need not push over Sewing machines, promptly dismantled and assembled cylindricality Sewing machines; Its feature exists:

The crank upper end of work feed linkage bottom has a roller bearing, and the groove that has a semicircle in work feed bar bottom, and the center of roller bearing is consistent with semicircular groove center and can engage, and clamp the roller bearing periphery with a clip trip that is fixed on work feed bar lower end one side, and prevent moving up and down.

2. the work feed linkage of cylindricality Sewing machines as claimed in claim 1, it is characterized in that, described clip trip is located between a work feed bar lower end and the fixed head, utilization has the axle of screw as fulcrum, and have the semicircle groove identical with roller bearing, and above fulcrum, have the inclined-plane, and be provided with that a front end is that spherical screw spiral shell is located at fixed head and the inclined-plane that is resisted against the clip trip; When toward fastening direction when screwing screw, its pressure will via the inclined-plane make the clip trip with the axle that has screw as fulcrum, the back that turns to the inside is to clamp the periphery of roller bearing; Untie when unclamping screw after the clip trip, can take out the work feed bar.

3. the work feed linkage of cylindricality Sewing machines as claimed in claim 1, it is characterized in that, described work feed bar can be the two-period form structure of separating up and down, having a groove in following work feed bar upper end is used for can sliding up and down with the lower end tabling of last work feed bar, be provided with the perforation of an eccentric shaft in these groove central authorities, the eccentric part of eccentric shaft be arranged on the work feed bar on level after slotted hole engages, under the rotation of eccentric shaft, last work feed bar can move up and down in the extent of the error of eccentric shaft.