CN1372033A

CN1372033A - Hobbinless automatic thread feeder for industrial sewing machine

Info

Publication number: CN1372033A
Application number: CN 01106496
Authority: CN
Inventors: 黄喜谋
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-19
Filing date: 2001-02-19
Publication date: 2002-10-02

Abstract

The present invention relates to a bobbinless automatic thread feeder for industrial use sewing machine, and is characterized by that the traditional bobbin for winding lower thread can be removed, and the centre of lower spindle for driving bobbin head is equipped with a central hole which is passed through whole spindle, so that said lower spindle possesses a channel formed from driving gear centre of one end of the lower spindle to centre of bobbin head, and the thread can be led into the channel from outside of machine and can be dirctly provided for bobbin head, therefore it has no need of frequently changing bobbin.

Description

Hobbinless automatic thread feeder for industrial sewing machine

The invention belongs to the Sewing machines accessory device, relate to a kind of Hobbinless automatic thread feeder for industrial sewing machine specifically.

As everyone knows, the method of stitching sewing machine clothing is with manual different, by hand be that pin draws a suture and wears back and forth on working substance and twine, and Sewing machines is at working substance a suture to be arranged respectively up and down, suture needle will reach the standard grade connect working substance below through shuttle head (HOOK) with roll off the production line wear knot after, to reach the standard grade again and pull on, second pin is stitched in the working substance displacement again, seam is followed closely continuously so repeatedly, and two working substance seams are connected together, used suture, last linear system is directly introduced suture needle by the outer ball of string of Sewing machines, and rolling off the production line then is wrapped in line segment in the shuttle (BOBBIN) earlier, the shuttle head central authorities of again shuttle being packed into, draw use by the shuttle head, now for sake of convenience, method and the shortcoming thereof with the supply of traditional Sewing machines suture is specified in down earlier:

Fig. 1 and Fig. 2 are traditional Sewing machines seam nail and the exploded view that supplies the line part, as can be seen from the figure suture needle 1 is located at below on the needle plate 3 (NEEDLE PLATE) respectively with shuttle head 2 (HOOK), the back is mobile in front on needle plate for working substance, 11 slaves of reaching the standard grade are introduced outward, pass the pin hole of the suture needle 1 that moves up and down, passing working substance with suture needle wears from line hole 31, through with shuttle head 2 under after line 51 tangles, reach the standard grade 11 again with lifting from the crop that goes into operation in the suture needle 1, working substance is followed closely second pin with the displacement of making necessity in order to seam, shuttle head 2 then is to be contained on the lower shaft 4 (LOWER SHAFT), this lower shaft 4 is through travelling gear 41, (GEAR) be subjected to the transmission of main shaft and rotate, suitable match (suture needle also is to be subjected to spindle) that move up and down with suture needle 1 of the angle of its rotation, thus can mat shuttle head 2 itself shapes and will on roll off the production line (following) entanglement and finish the work of making.

Fig. 2 is the exploded view of Fig. 1 shuttle head 2 parts; as can be seen from the figure; shuttle head 2 includes shuttle 22 (BOBBIN) and bobbin case 21 (BOBBINCASE); suture 51 will be twined earlier in the shuttle 22 during use; because of being used in side under the working substance; be called and roll off the production line 51; will be in the shuttle 5 that completely rolls off the production line be packed shuttle head 2 into; cover bobbin case 21 and just become shape shown in Figure 1; just can begin to have made clothing; the shortcoming of the Sewing machines maximum of this kind traditional type is that the supply of rolling off the production line very little; according to the above; roll off the production line 51 is around existing among the shuttle 22; shuttle 22 because of be contained among the shuttle head 2 between; so volume is very little; general diameter is all two; between three centimeters; it is around the line of yarn amount with 20 common thicknesses; but two; 30 yards, in other words whenever make two; 30 yards working substance just need be shut down and be changed the outfit that another winds the shuttle 5 that rolls off the production line in addition; not only take a lot of work very much; and more can on working substance, stay very long the end of a thread during the shuttle changing heart, and as the end of a thread is cut short, then easily off-line; do not cut and hinder outward appearance, common the end of a thread that has this kind factory to handle in a lot of clothings.It is 11 quite different to reach the standard grade, and reaching the standard grade is that the used ball of string of industrial sewing machine all has two pound weights usually by the outer ball of string supply of machine, line with 20 thicknesses calculates, and the line of the ball of string of two pound weights is answered 16,800 code lengths, can not change through the moon, seemingly do not roll off the production line and just wanted thread-changing once in several minutes.Must change shuttle again and again at work, time-consuming and influence quality of sewing.

The object of the invention is that the supply of rolling off the production line at the traditional type Sewing machines very little, must change shuttle at work again and again, and is time-consuming and influence the shortcoming of quality of sewing, and designs a kind of Hobbinless automatic thread feeder for industrial sewing machine.

The solution that realizes the object of the invention is: a kind of Hobbinless automatic thread feeder for industrial sewing machine, its formation comprises shuttle head, bobbin case, lower shaft, travelling gear, it is characterized in that: shuttle head central authorities are without shuttle, there is the centre bore that runs through at the lower shaft center that links to each other with the shuttle head (HOOK) of post knotting, centre bore becomes a passage that can be passed through by yarn from lower shaft one end travelling gear central authorities to other end shuttle head, and the passage that rolls off the production line is since then introduced and supply shuttle head.By the technology of the present invention means, realized rolling off the production line and can penetrate by travelling gear lower right medium pore, directly leading to shuttle head central authorities through the lower shaft centre bore also can be by the good effect of the outer ball of string supply of machine to replace tradition around the rolling off the production line of shuttle, to reach rolling off the production line.Give up shuttle need not, both saved accessory, avoided the trouble of the frequent shuttle changing heart again.

Describe the present invention in detail below in conjunction with drawings and Examples.

Fig. 1 is the exploded view of traditional Sewing machines seam nail and yarn feeding system.

Fig. 2 is the exploded view of traditional Sewing machines yarn feeding system.

Fig. 3 is an organigram of the present invention.

Fig. 4 is a lead-in wire hook organigram.

Fig. 3 is the schematic diagram that the present invention constructs, as can be seen from the figure, this case lower shaft 4 central authorities are provided with the centre bore 42 of perforation, can hold line and directly guide to shuttle head 2 central authorities from the travelling gear medium pore, to replace traditional shuttle 22, other parts of when outside line is introduced, can stumbling, the spy in position is provided with conduit 6, to roll off the production line from a ball of string (not in figure), cause travelling gear 41 central authorities.Though this case is without shuttle 22, bobbin case 21 still keeps as usual, enters in the shuttle head 2 to prevent foreign object.

Fig. 4 is the lead-in wire hook 7 of lead-in wire usefulness, be to make by flexible steel wire, front end has finger ring 71, wired hole 72, rear end, the lower shaft of Sewing machines is quite long, and desire will roll off the production line and guide to shuttle head 2 central authorities from travelling gear 41 ends and quite be not easy, the lead-in wire hook is to design for this reason, when just loading line, the hook that this can be gone between penetrates from shuttle head center through lower shaft centre bore 42 and passes from driving cog axle 41 central authorities, the end of a thread is worn line-entering hole 72 just can guide to shuttle head 2 central authorities with rolling off the production line.

From last explanation, though this case structure is extremely simple as can be known, not only can save a large amount of skills in industrial theory, increase output, and can make the clothing of making no longer leave the end of a thread.

Claims

1, a kind of Hobbinless automatic thread feeder for industrial sewing machine, its formation comprises shuttle head (2), bobbin case (21), lower shaft (4), travelling gear (41), it is characterized in that shuttle head (2) central authorities do not establish shuttle, with (a 4) center under the shuttle head (HOOK) (2) of post knotting links to each other the centre bore (42) that runs through is arranged, this hole becomes a passage that can be passed through by yarn from the travelling gear (41) of lower shaft one end central authorities to other end shuttle head, roll off the production line (51) since then passage introduce and supply shuttle head (2).