CN2234451Y - Feed device for sewing machine - Google Patents
Feed device for sewing machine Download PDFInfo
- Publication number
- CN2234451Y CN2234451Y CN 95205333 CN95205333U CN2234451Y CN 2234451 Y CN2234451 Y CN 2234451Y CN 95205333 CN95205333 CN 95205333 CN 95205333 U CN95205333 U CN 95205333U CN 2234451 Y CN2234451 Y CN 2234451Y
- Authority
- CN
- China
- Prior art keywords
- cloth
- roller
- tooth
- work feed
- feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a cloth feeding device of a sewing machine, which can not cause the cloth to be wrinkled and pursed up when used for feeding cloth. The utility model is composed of a cloth feeding tooth 2 and a cloth pressing mechanism 1. The cloth feeding tooth 2 is provided with 3 feeding-in parts. The cloth pressing mechanism 1 is provided with the back of a needle locating part 1 c which is placed at the pressing foot 1 b, the upper part of a center feeding-in part and a rolling wheel 1 a which can rotate freely and is roughly aequilate with the center feeding-in part. Under the condition that the rolling wheel 1 a is extruded from the lower surface of the pressing foot 1 b, the heights of the upper surfaces of each feeding-in part are the same. Under the condition that the rolling wheel 1 a is not extruded from the lower surface of the pressing foot 1 b, a groove is formed on the lower surface of the pressing foot 1 b and the upper surface of the center feeding-in part is higher than the upper surfaces of the feeding-in parts on both sides.
Description
The utility model relates to the device of sending cloth in the Sewing machines with cloth presser and work feed tooth to.
Figure 11 represents in the past known cloth feeding device for sewing machine.This cloth-feeding device is made of cloth presser 1 and work feed tooth 2, and when cloth presser was in the state that is pressed on the cloth 4, work feed tooth 2 was done elliptic motion, when its tooth portion protrudes on the needle plate 3, cloth 4 is sent in the direction of arrow A.
But, in above-mentioned cloth feeding device for sewing machine, have only following cloth 4b directly to contact with work feed tooth 2, and go up cloth 4a suffered be the pressure of cloth presser 1B direction and from the remote-effects of work feed tooth 2, therefore, by the feed of the caused down cloth 4b of the elliptic motion of work feed tooth 2 feed greater than last cloth 4a.So the seam that just takes place as shown in figure 12 finishes afterwards the situation of cloth 4b wrinkling (ィ サ リ) down, the result, the sewing end of each cloth 4a, 4b is uneven.Terminal this gap L of sewing is called wrinkling amount (ィ サ リ amount).This wrinkling of following cloth 4b also makes cloth 4a be affected and a wrinkle, and this cloth wrinkle is called purse up.Wrinkling and purse up like this is to make the problem of unsolved big eckband for many years.
When being to make the Sewing machines work feed, the purpose of this utility model do not cause wrinkling and purse up.
In order to achieve the above object, cloth feeding device for sewing machine of the present utility model is by the work feed tooth with have and fall at presser feet that the cloth presser of rotating roller is formed along with the elliptic motion of work feed tooth at pin portion rear.Work feed tooth and roller have and each cloth between produce the face of frictional force, and form the tooth that pitch same, each other becomes the integral multiple relation.The position of roller can be regulated on above-below direction, so that can freely turn round to either direction.Form multiple row on the work feed tooth and send portion to, roller above the portion that sends to of central authorities and width and this send portion to width about equally.Like this, when roller was outstanding downwards from the lower surface of presser feet, the height of upper surface of respectively sending portion to was identical; When roller not from the presser feet lower surface when outstanding downwards, the lower surface of presser feet forms groove, the upper surface that central authorities send portion to is higher than the upper surface that both sides are sent portion to.
In having the cloth feeding device for sewing machine of said structure, send in the portion surface, pressured underfooting and send frictional force work feed between portion's upper surface to in the both sides of work feed tooth; Send portion in central authorities, last cloth and following cloth are clamped in roller fully and send between portion's upper surface, and two cloth are sent to simultaneously.
Fig. 1 is the side view of cloth-feeding device of the present utility model.
Fig. 2 is the view that concerns between each tooth portion of the roller of cloth presser in the expression the utility model cloth-feeding device and work feed tooth.
Fig. 3 is the sew plane of state of curve that expression is carried out with the utility model cloth-feeding device.
Fig. 4 adopts to make the side view of roller from the utility model cloth feeding device for sewing machine of the cloth presser of presser feet lower surface rising.
Fig. 5 is the view of the cloth presser of expression cloth-feeding device shown in Figure 4, and (1) is upward view, and (2) are rearviews.
Fig. 6 is the view of the work feed tooth of expression cloth-feeding device shown in Figure 4, and (1) is upward view, and (2) are rearviews.
Fig. 7 is the plane of the state of making of expression cloth-feeding device.
Fig. 8 is the side view that is illustrated in the cloth state of sending the roller position to.
Fig. 9 is the plane of the time of day made with the utility model cloth-feeding device of expression.
Figure 10 is the sectional drawing of the cloth state made with the utility model cloth-feeding device of expression.
Figure 11 is the side view of expression cloth-feeding device in the past.
The sectional drawing of Figure 12 cloth state that to be expression make with the cloth-feeding device of passing by.
The embodiment of cloth feeding device for sewing machine of the present utility model is described below with reference to Fig. 1 to Figure 10.
This cloth-feeding device is made up of cloth presser 1 and work feed tooth 2, and cloth presser 1 has the roller 1a that pushes down cloth on needle plate 3 from above; When the upper surface of the needle plate 3 of the tooth portion of work feed tooth in the process of carrying out elliptic motion is outstanding, cloth is sent to.
The rear of the 1c of pin portion that falls that forms on presser feet 1b forms hole 1d, and the bottom of roller 1a can be given prominence to downwards from the lower surface of presser feet 1b.
On the sweep at presser feet 1b rear, be provided with not shown longitudinally elongated hole, about each one.With two bolt 1h that pass this elongated hole roller mount 1e is installed, and can regulates the position of roller mount 1e on above-below direction B.Roller 1a can be installed on this roller mount 1e by axle 1f freely to rotate at the rear that falls the 1c of pin portion.So roller 1a is B adjusting position but also can freely turn round to either direction along with the elliptic motion of work feed tooth 2 along the vertical direction not only.
As shown in Figure 2, on work feed tooth 2, the three row tooth 2a of portion, 2b, 2c are arranged usually, they form one, their top at grade, so each 2a of tooth portion, 2b, 2c move along same elliptical orbit with same speed.
Be preferably formed as on roller 1a and the work feed tooth 2 same and each other pitch become the tooth of integral multiple relation.According to the condition of making, also can both sides all make original not toothed smooth appearance, also can form the annular knurl tooth or make with rubber.Key is will be with producing frictional force between the cloth, still, selection is suitable for the roller 1a of sewing condition most and the material and the surface configuration of work feed tooth 2 can obtain better effect.
As shown in Figure 1, when roller mount 1e is in the position of falling, and roller 1a is when doing the work feed motion under the situation outstanding below presser feet 1b, and the 2a of tooth portion, 2c contact with presser feet 1b by cloth, and the 2b of tooth portion then meshes by cloth and roller 1a.
But roller 1a one is outstanding from the lower surface of presser feet 1b, and this outstanding roller 1a has just become obstacle, just makes to resemble to do rotating the making simultaneously of minor radius at cloth as shown in Figure 3 and become very difficult.
In this case, as shown in Figure 4, roller mount 1e is risen, roller 1a is retracted below presser feet 1b, make its with the lower surface of presser feet 1b on same plane, or maintenance certain clearance C.
At this moment, as shown in Figure 5, groove 1g must be set at the lower surface of presser feet 1b, the original position D of this groove 1g is preferably in the right and left of the 1c of pin portion.
At this moment work feed tooth as shown in Figure 6, the height of the aspect ratio tooth 2a of portion, the 2c of the 2b of tooth portion is higher, is necessary setting height difference E.The degree of depth F of the groove 1g of presser feet 1b is with roughly the same for well with the difference in height E of tooth portion, but then can obtain better effect if do some changes according to the kind of making thing.
Under the situation that adopts this cloth presser 1 and work feed tooth 2, the relation of cloth presser 1 and work feed tooth 2 is the same with relation shown in Figure 2, in addition, in this case, because roller 1a can not give prominence to below presser feet 1b.Therefore, resembling the sort of minor radius bending shown in Figure 3 makes also and can successfully carry out.
Fig. 7 is illustrated in the relation of each 2a of tooth portion, 2b, 2c and the seam 5 of work feed tooth 2 under the state of making.In the cloth-feeding device in the past, no matter where tooth portion is in, and all follows the relation of the relation of the 2a of tooth portion and presser feet 1b among Fig. 2 and 2c of tooth portion and presser feet 1b the same, and cloth 4 is sent to the G direction.But in having the cloth-feeding device of the present invention of roller 1a, as shown in Figure 8, cloth 4b was clamped between roller 1a and the 2b of tooth portion fully under last cloth 4a reached, and two clothes are sent to simultaneously, wrinkling can not take place.
In addition, because on the position of the 2b of tooth portion, cloth 4 is sandwiched between 2b of tooth portion and the roller 1a and sends to, and on the position of the 2a of tooth portion, 2c, the lower surface friction of the flank of tooth of these teeth and presser feet 1b produces work feed power, and therefore, the cloth feed amount on the 2b of tooth portion is more than the feed at the 2a of tooth portion, tooth portion 2c place.So making among the present invention as shown in Figure 9, only resembles at the locational cloth of the 2b of tooth portion by the state of towing effectively.Yet, the cloth of under elongation state, being made 4, as shown in figure 10, it crookedly restores because of being released making the back, purse up can not take place, the feel of seam own is soft, and, reach the standard grade 6a and the node H of 6b of rolling off the production line has been determined when cloth 4 is in elongation state, even its position is also constant under the state that the elongation of cloth 4 is restored.
The cloth-feeding device that does not possess the compress roller in past, when the coefficient of friction of presser feet lower surface was big, the work feed power that acts on cloth disappeared, and can not bring into play the function of cloth-feeding device.And in the present invention,, can bring into play the reliable effect of so-called work feed on the contrary though the frictional force of roller 1a is big in the cloth presser 1.
In addition, in the Sewing machines of no reverse sewing, if on axle 1f, use one-way clutch to prevent reverse, then better effects if.
Tool has following effect at the utility model of said structure, promptly, because upper and lower cloth is sent to when being clamped between roller and the work feed tooth fully, therefore, when making thin thing, can not produce wrinkling and purse up phenomenon even the using method of Sewing machines itself is identical and not necessarily drive source will be arranged with Sewing machines in the past yet; The node of reaching the standard grade and rolling off the production line is firmly determined, can be obtained soft seam; Under the situation that roller is not given prominence to from the presser feet lower surface, can also successfully carry out the bending sewing of minor radius.
Claims (3)
1. the cloth-feeding device of Sewing machines, form by work feed tooth and cloth presser, this cloth presser possess the pin portion rear that falls that is positioned at presser feet rotating roller is characterized in that along with the elliptic motion of work feed tooth, described roller has can regulate the apparatus for adjusting position of roller in the position of above-below direction.
2. the cloth-feeding device of Sewing machines according to claim 1 is characterized in that having several column to send portion on the described work feed tooth, and roller is sent portion's width to about equally above the portion that sends to of central authorities and with this.
3. the cloth-feeding device of Sewing machines according to claim 1 is characterized in that described roller is positioned at the top of the lower surface of presser feet, is formed with groove on the lower surface of presser feet, and the upper surface that central authorities send portion to is higher than the upper surface that both sides are sent portion to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12047794A JPH07299268A (en) | 1994-05-10 | 1994-05-10 | Device for feeding cloth for sewing machine |
| JP120477/94 | 1994-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234451Y true CN2234451Y (en) | 1996-09-04 |
Family
ID=14787151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95205333 Expired - Fee Related CN2234451Y (en) | 1994-05-10 | 1995-05-10 | Feed device for sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH07299268A (en) |
| CN (1) | CN2234451Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837439B (en) * | 2006-04-24 | 2011-04-20 | 飞跃股份有限公司 | Anti-crease arrangement for flat seamer |
| CN1786315B (en) * | 2004-12-07 | 2011-09-21 | 重机公司 | Sewing machine |
| CN1702220B (en) * | 2004-05-24 | 2012-02-01 | 飞马缝纫机制造株式会社 | Feeder of sewing machine |
| CN102877224A (en) * | 2009-04-01 | 2013-01-16 | 中捷缝纫机股份有限公司 | Cloth dragging device of sewing machine |
| CN103215754A (en) * | 2013-04-17 | 2013-07-24 | 吴江市菀坪宝得利缝制设备机械厂 | Bilateral cloth feeding tooth pin |
| CN103397481A (en) * | 2013-07-30 | 2013-11-20 | 苏州巨康缝制机器人有限公司 | Feed dog |
| CN107090670A (en) * | 2017-07-05 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of thick stuff sewing machine |
| CN107268188A (en) * | 2017-06-23 | 2017-10-20 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
| CN107956047A (en) * | 2017-12-29 | 2018-04-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN108360157A (en) * | 2018-05-02 | 2018-08-03 | 广东溢达纺织有限公司 | Sewing system and cut-parts are overlapped sewing method |
| CN110219102A (en) * | 2019-07-15 | 2019-09-10 | 太原理工大学 | A kind of sewing-machine foot sewing wave line tracking |
| CN112575455A (en) * | 2020-12-02 | 2021-03-30 | 际华三五零六纺织服装有限公司 | Differential adjustable feed dog device of lockstitch sewing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505364B (en) * | 2011-11-01 | 2013-04-24 | 中捷缝纫机股份有限公司 | Normal stitch and reverse stitch driving mechanism for roller presser foot of roller |
| KR102516458B1 (en) * | 2022-10-14 | 2023-04-04 | 이윤창 | Presser foot for sewing sacks |
-
1994
- 1994-05-10 JP JP12047794A patent/JPH07299268A/en active Pending
-
1995
- 1995-05-10 CN CN 95205333 patent/CN2234451Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1702220B (en) * | 2004-05-24 | 2012-02-01 | 飞马缝纫机制造株式会社 | Feeder of sewing machine |
| CN1786315B (en) * | 2004-12-07 | 2011-09-21 | 重机公司 | Sewing machine |
| CN1837439B (en) * | 2006-04-24 | 2011-04-20 | 飞跃股份有限公司 | Anti-crease arrangement for flat seamer |
| CN102877224A (en) * | 2009-04-01 | 2013-01-16 | 中捷缝纫机股份有限公司 | Cloth dragging device of sewing machine |
| CN103215754A (en) * | 2013-04-17 | 2013-07-24 | 吴江市菀坪宝得利缝制设备机械厂 | Bilateral cloth feeding tooth pin |
| CN103397481A (en) * | 2013-07-30 | 2013-11-20 | 苏州巨康缝制机器人有限公司 | Feed dog |
| CN107268188B (en) * | 2017-06-23 | 2019-08-16 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
| CN107268188A (en) * | 2017-06-23 | 2017-10-20 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
| CN107090670A (en) * | 2017-07-05 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of thick stuff sewing machine |
| CN107956047A (en) * | 2017-12-29 | 2018-04-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN107956047B (en) * | 2017-12-29 | 2020-07-28 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108360157A (en) * | 2018-05-02 | 2018-08-03 | 广东溢达纺织有限公司 | Sewing system and cut-parts are overlapped sewing method |
| CN108360157B (en) * | 2018-05-02 | 2023-10-13 | 广东溢达纺织有限公司 | Sewing system and cut-piece overlapping sewing method |
| CN110219102A (en) * | 2019-07-15 | 2019-09-10 | 太原理工大学 | A kind of sewing-machine foot sewing wave line tracking |
| CN110219102B (en) * | 2019-07-15 | 2021-06-04 | 太原理工大学 | Sewing machine presser foot for sewing wavy line tracks |
| CN112575455A (en) * | 2020-12-02 | 2021-03-30 | 际华三五零六纺织服装有限公司 | Differential adjustable feed dog device of lockstitch sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07299268A (en) | 1995-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |