CN1043481C - Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine - Google Patents
Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine Download PDFInfo
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- CN1043481C CN1043481C CN95115617A CN95115617A CN1043481C CN 1043481 C CN1043481 C CN 1043481C CN 95115617 A CN95115617 A CN 95115617A CN 95115617 A CN95115617 A CN 95115617A CN 1043481 C CN1043481 C CN 1043481C
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Abstract
The present invention relates to an automatic thread-cutting device for a bearded needle longitudinal multi-needle type sewing machine, which mainly comprises a thread cutting mechanism and a thread clamping mechanism. In the method of the utilization of the thread cutting mechanism and the thread clamping mechanism which are both in longitudinal movement, a needle thread and a bearded needle thread are drawn to the thread clamping mechanism by a moving cutter and a fixed cutter, so the needle thread and the bearded needle thread are clamped on the thread clamping mechanism, and then the needle thread and the bearded needle thread are cut together. Thereby, the certain length of cut thread ends is kept, and the cut thread ends are fixed in the same position.
Description
The present invention relates to a kind of automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine, be particularly related to a kind of can the cut-out simultaneously and be positioned at different crochet hooks and hooked needle line on the pin and needlework, and make crochet hook the end of a thread after the cut-out and needlework have automatic tangent apparatus in the most lengthwise movement crochet hook of having of the equal length Sewing machines.
Spininess type Sewing machines is a kind of machine that is widely used in the Sewing machines field.The thread cutting device of known spininess type Sewing machines is to utilize thread cutting device to do angled swing mostly, so that needlework and hooked needle line are caught on, is pulled to orientation amputate again; Or utilize and to be configured to cutting knife vertical with the sewing direction and that be positioned at the thread side and to do unidirectional reciprocating motion, so that needlework and hooked needle line are caught on, be pulled to orientation amputate again.For example: No. the 75288507th, the novel number of patent application in Taiwan, the thread cutting device that it has disclosed a kind of multi-branch-needle sewing machine utilizes a linkage to drive the cutting knife of thread cutting device to carry out the angle traverse, with the action that needlework and hooked needle line are colluded, cut, press from both sides.Again for example: Taiwan application for a patent for invention number No. 81107878, tangential method and thread cutting device that it has disclosed a kind of Sewing machines utilize a thread cutting device that is set at the thread side, finish with oblique reciprocating traverse the hook of needlework and hook line is cut action.
Yet the thread cutting device of known spininess type Sewing machines still has following disappearance basically:
(1) movement locus of catching the member of (or catching on) needlework and hooked needle line is the swing type arching trajectory, easily and crochet hook knock against each other and damaging.
(2) for the end of a thread that downcuts being clamped, the member of seizure needlework or hooked needle line and the needle plate of Sewing machines can not be at a distance of too far away, must be considerably near just can guaranteeing clamp, but too near then easily and produce between crochet hook and disturb, the oversize anxiety of the end of a thread of cut-out is arranged again then too far.
(3) no matter make the thread cutting device of angle traverse or make the thread cutting device of side direction reciprocating traverse, all can make the length of cutting off the most bar the end of a thread in back unequal, like this then be unfavorable for next time sewing work.
The Chinese patent of CN1105078A has disclosed a kind of lockstitch button holder with needlework cutting and clamping device, it has needlework cutting and clamping device, it is by a cam mechanism, but the direction of feed of phase opposite joint thing sliding sash is done controllably laterally (vertically) motion on the one hand, controllably makes opening movement on the other hand.This cam mechanism respectively contains oneself a cam for each function.But the cam that is used for transverse movement is the cam part mode that is used for opening process relatively to be regulated, and according to this, the position of the line end head of stack sewing can be controlled when forming first buttonhole pine knitting wool.But the needlework cutting and the clamping device of this lockstitch button holder are not suitable for spininess type Sewing machines, and it can't cut off most bar needlework and hooked needle line simultaneously, and make the length of cut needlework head and crochet hook the end of a thread keep certain.
The object of the present invention is to provide a kind of automatic tangent apparatus of spininess type Sewing machines, it can cut off most bar needlework and hooked needle line simultaneously, and the hooked needle line head-clamp before will cutting off firmly and then with needlework cuts off and be fixed on certain position in order to sewing work next time with the hook line.
Another object of the present invention is to provide a kind of automatic tangent apparatus of spininess type Sewing machines, it can make the length of cut needlework head and crochet hook the end of a thread keep certain, with convenient sewing work next time.
Another purpose of the present invention is to provide a kind of automatic tangent apparatus of spininess type Sewing machines, its assembling is comparatively simple and easy, and do not need to take additional space, help the miniaturization of Sewing machines unit, but be unlikely to disturb the action of other Sewing machines members such as suture needle, crochet hook.
The invention provides a kind of automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine, be installed in the bed portion tail end of Sewing machines, and be positioned at suture needle under, but it includes a tangent line part and a clamp part that is made of moving knife, described tangent line partly is positioned at the place ahead of Sewing machines needle plate, comprise many movable blade, these many movable blade are fixed on the movable blade installing plate and keep certain position, and these many movable blade are done vertical reciprocating motion via a connecting rod by transmission mechanism drive; To include a dead knife, it is a mat dead knife installing plate and be connected in end before this Sewing needles panel seat, this dead knife installing plate is provided with a spring leaf installing plate, be equiped with multi-disc on it and compress the spring leaf of movable blade from movable blade below, and the number of spring leaf and position are corresponding to many movable blade; Described clamp partly is positioned at square position corresponding to the tangent line part under the Sewing machines needle plate, include many crochet hooks and hooked needle line pawl sub-assembly, be provided with a crochet hook on crochet hook and the hooked needle line sub-assembly, this crochet hook is arranged on the line pawl seat, and is provided with the line latch spring sheet that amplexiforms mutually on the line pawl seat again and keeps pin; Crochet hook and hooked needle line pawl sub-assembly are fixed on the mount pad, and are connected with the crochet hook transmission mechanism of Sewing machines, so that do vertical reciprocating motion by this;
Wherein, when carrying out thread cutting action, most movable blade are to drive forward by transmission mechanism that vertical equity ground stretches out, and crochet hook is to be positioned at the position that is level with the Sewing machines needle plate; When movable blade projects forwardly in the process at dead point, the wire loop of needlework and hooked needle line is passed and slips in one of this movable blade hook groove cutting edge by movable blade; When movable blade is returned back to by the dead point in the process of original position, this hooked needle line is imported into the line latch spring and keeps between pin and be held; When this movable blade returned back to the position of dead knife, knitting and hooked needle line was cut off simultaneously.
The automatic disconnecting device of aforesaid bearded needle longitudinal multi-needle type sewing machine also comprises an integrated group of line plate, and it is to be arranged at Sewing machines needle plate side before, is formed with a plurality of group line pawls for the pin number on it; And be fixed on one group of line plate couple axle to drive by the transmission mechanism in the Sewing machines and make move left and right, penetrate in order to movable blade so that the wire loop of hooked needle line enlarged.
The automatic tangent apparatus of aforesaid bearded needle longitudinal multi-needle type sewing machine also comprises a pneumatics blowpipe, and it is arranged at the side of Sewing machines suture needle, in order to the needlework the end of a thread after the segment is blown to a side, in order to next sewing work.
The automatic tangent apparatus of aforesaid bearded needle longitudinal multi-needle type sewing machine, wherein, the transmission mechanism of this tangent line part is that pneumatic type or electromagnetism drive formula.
The invention has the advantages that: because the automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine of the present invention mainly includes tangent line part and clamp part, its tangent line partly is positioned at the place ahead of Sewing machines needle plate, consist predominantly of a dead knife and Duo Zhi movable blade, be to utilize the transmission mechanism drive movable blade of pneumatic or electromagnetic power to stretch out forward during its running to hook needlework and hooked needle line, again it is returned to original position, cooperates dead knife and cut off needlework and hooked needle line.Clamp partly is positioned at the below of Sewing machines needle plate, consist predominantly of many crochet hooks and hook line pawl sub-assembly, it during its running the action that cooperates above-mentioned tangent line part, utilize the line latch spring sheet in the hook line pawl to sell and the hook wire clamp is held on the hooked needle line pawl with keeping, line cutting structure covered and returned to initial point this moment, therefore can cut off simultaneously and be positioned at different crochet hooks and hooked needle line on the pin and needlework, and the members such as suture needle, crochet hook that can prevent thread cutting device and Sewing machines really are identical or interfere with each other, and make the tangent line effect stable and simplified assembling.
Feature of the present invention and function will details are as follows by the following description and with reference to each accompanying drawing.
Fig. 1 is the stereogram of automatic tangent apparatus relevant position in Sewing machines of the many types of Sewing machines of the demonstration vertical formula of crochet hook of the present invention;
Fig. 2 is the automatic tangent apparatus three-dimensional exploded view of bearded needle longitudinal multi-needle type sewing machine of the present invention;
Fig. 3 is for showing the vertical view of tangent line part of the present invention when movable blade is not stretched out;
Fig. 4 is for showing the vertical view of tangent line part of the present invention when movable blade is stretched out;
Fig. 5 is the crochet hook of demonstration clamp part of the present invention and the stereogram of hook line pawl sub-assembly, and wherein, hooked needle line has been held in line latch spring sheet and has kept between the pin;
Fig. 6 dials the vertical view of line plate for the present invention;
Fig. 7 is a right view of dialling the line plate among Fig. 6;
Fig. 8 is for showing tangent line part of the present invention (solid line part) and vertical view of (dotted portion) and near member relative position when extending out to the dead point when movable blade is not stretched out;
Fig. 9 is for showing that tangent line part of the present invention is when movable blade is stretched out forward and near the vertical view of member relative position;
Figure 10 is the left view of demonstration tangent line part of the present invention with clamp part relative position when movable blade is not stretched out;
Figure 11 is the left view of demonstration tangent line part of the present invention with clamp part relative position when movable blade extend out to preceding dead point;
The schematic top plan view of Figure 12 for showing that movable blade of the present invention moves to the wire loop of hooked needle line;
The schematic top plan view of Figure 13 for showing that movable blade of the present invention will be inserted in the hooked needle line wire loop;
The schematic top plan view of Figure 14 for showing that movable blade of the present invention is inserted in the hooked needle line wire loop and will be inserted in the needlework wire loop;
Figure 15 is inserted in the needlework wire loop for demonstration movable blade of the present invention and arrives the schematic top plan view at preceding dead point;
Figure 16 moves and hooked needle line is held on the schematic top plan view of line latch spring sheet between selling with maintenance for showing movable blade pulling hooked needle line of the present invention and needlework to original position; And
Figure 17 is blowed to the front-view schematic diagram of a side by the pneumatics blowpipe for the automatic tangent apparatus needlework head after tangent line finishes that shows bearded needle longitudinal multi-needle type sewing machine of the present invention.
The present invention will details are as follows with the embodiment of four needle sewing machines shown in graphic.
With reference to shown in Figure 1, the automatic tangent apparatus 10 of the vertical spininess type of crochet hook of the present invention Sewing machines is bed portion (bed) tail end that is arranged at Sewing machines, and be positioned at suture needle under, wherein, the caudal end of this one is provided with the transmission mechanism 13 of pneumatic or electromagnetic power to drive the reciprocating motion of tangent line part 11.
Please refer to shown in Figure 2ly, the automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine of the present invention consists predominantly of tangent line part 11 and clamp part 12.
Please refer to Fig. 2 to shown in Figure 4, tangent line part 11 is the place aheads that are positioned at needle plate 14.In the present embodiment, tangent line part 11 has four movable blade 111, this four movable blade, 111 mat screws and being fixed on the movable blade installing plate 112, and keep certain position.This movable blade installing plate 112 is connected with a connecting rod 114 via a L shaped connector 113, and 114 on this connecting rod is connected with above-mentioned transmission mechanism 13, so that drive this movable blade 111 reciprocating motions.
In addition, the dead knife 115 of tangent line part 11 is dead knife installing plates 116 of mat H shape and be connected to the pin holder front end.Two jags of the facing movament cutter 111 of this dead knife installing plate 116 are towards the below deviation, spring leaf installing plate 117 is connected on this two jag, is equiped with the spring leaf 118 (please refer to the side view of Figure 10 and Figure 11) that compresses movable blade 111 from the below on it.The number of this spring leaf 118 and position are used to keep the level of movable blade 111 corresponding to movable blade 111.
Referring to figs. 2 and 5 shown in, clamp part 12 is positioned at the below of needle plate 14, its top is the position of tangent line part 11, consist predominantly of four crochet hooks and collude line pawl sub-assembly 120, and this crochet hook and the position of colluding line pawl sub-assembly 120 is to be positioned under four movable blade 111 of tangent line part 11.This sub-assembly 120 is provided with crochet hook 121, and hooked needle line 2 passes the line hole of its rear end.Hook line pawl 122 parts of this sub-assembly 120 mainly are made up of line pawl seat 123, line latch spring sheet 124 and 125 of maintenance pins, wherein, keep pin 125 to be placed on the line pawl seat 123 and with line latch spring sheet 124 and amplexiform mutually, in addition, crochet hook 121 also is arranged on the line pawl seat 123.
Crochet hook and hooked needle line pawl sub-assembly 120 are fixed on the mount pad 126, and keep certain position.Mount pad 126 is connected with the crochet hook transmission mechanism of Sewing machines, so that drive 12 reciprocating motions of clamp part, and makes crochet hook 121 carry out hook line action (please refer to Figure 10 and Figure 11), and this belongs to the crochet hook action of known Sewing machines, does not add at this and gives unnecessary details.
Please refer to shown in Fig. 2,3,4 and 6, Sewing needles 4 the place aheads are provided with integrated group of line plate 21, are formed with four on it and dial line pawl 22, as stirring hooked needle line 2 to enlarge the wire loop of hooked needle line.Dial the line pawl and be fixed on the dialling on the line plate couple axle 23 of dead knife 115 belows (can with reference to Figure 10 and Figure 11) of tangent line part 11, dialling line plate couple axle 23 is to be driven by the transmission mechanism in the Sewing machines to make move left and right, dials line plate 21 move left and right to drive by this.
With reference to shown in Figure 17, the suture needle right side of Sewing machines is provided with a pneumatics blowpipe 30, blows to left in order to the needlework the end of a thread after will cutting off, in order to next sewing work again.The thread cutting action of the automatic tangent apparatus 10 of bearded needle longitudinal multi-needle type sewing machine of the present invention below is described.
At first, please refer to shown in Fig. 3,4,8,9,10 and 11, the sharp hooked needle line of needlework must be cut off when sewing finishes, so that take out working substance, be to be positioned at its top dead-centre that pumps (figure does not show) position when suture needle stops, in order to avoid thread cutting device and suture needle knock against each other; The clamp part 12 of below is an end that moves near tangent line part 11, makes 14 one-tenth horizontal relationships of crochet hook 121 and needle plate (Figure 11), and the movable blade 111 of tangent line part 11 then is positioned at original position (Fig. 3 and Fig. 8).When starting transmission mechanism 13 with 11 motions of drive tangent line part, movable blade 111 beginnings are stretched out (Fig. 9) to crochet hook 121, arrive a dead point (Fig. 4 and Fig. 8) at last, return back to original position again.In this process, movable blade 111 is to be passed by the space of dialling line plate 21 central authorities, and the action of clamp and tangent line is then finished in this reciprocating process.
Again referring to figs 12 to shown in 16, movable blade 111 is to move in the minim gap on crochet hook 121.When thread cutting action began, transmission mechanism 13 drove movable blade 111 and stretches out forward, and this moment, the wire loop place of the hooked needle line 2 that movable blade most advanced and sophisticated 31 past crochet hook 121 tips are passed moved (Figure 12 and Figure 13).Turned right to dial and moved the wire loop that formation enlarges owing to dial the effect of line plate 21 side-to-side movements when hooked needle line 2, movable blade tip 31 is penetrated within this wire loop easily, movable blade moved on and needlework 3 was divided right and left and penetrates in knitting 3 the wire loop this moment, and crochet hook is knitted line 2 because moving forward again of movable blade 111 and slip into movable blade by movable blade bead 32 parts and collude (Figure 14) within the groove cutting edge 33.When movable blade 111 advances to the dead point, needlework 3 are inserted in movable blade with hooked needle line 2 and collude (Figure 15) within the groove cutting edge 33, then begin toward swivel motion.Reply in the way, hooked needle line 2 is imported into line latch spring sheet 124 and keeps between the pin 125, and clamping in addition, this moment, movable blade 111 continuation pulling needlework 3 hooked needle lines 2 moved towards dead knife 115, when arriving dead knife 115, needlework 3 are cut off (Figure 16) with hooked needle line 2, and the end of a thread of hooked needle line 2 is clamped.Because crochet hook 121 of the present invention and movable blade 111 are reciprocating motions (vertically) on equidirectional, so the end of a thread after the cut-out can keep identical length, with convenient sewing work next time.
More than explanation is as a kind of embodiment of the present invention, but not as restrictive narration.Any modification or variation of making according to spirit of the present invention and claim still belongs to the category of this case.For example: the connected mode among the present invention between various spare parts can adopt the known method of any industry, fixes that this is a kind of but not be only limited to screw.
Claims (4)
1. the automatic tangent apparatus of the vertical formula multineedle sewing machine of crochet hook is installed in the bed portion tail end of Sewing machines, and be positioned at suture needle under, but it includes a tangent line part and a clamp part that is made of moving knife, it is characterized in that:
Described tangent line partly is positioned at the place ahead of Sewing machines needle plate, comprises many movable blade, and these many movable blade are fixed on the movable blade installing plate and keep certain position, and these many movable blade are done vertical reciprocating motion via a connecting rod by transmission mechanism drive; To include a dead knife, it is a mat dead knife installing plate and be connected in end before this Sewing needles panel seat, this dead knife installing plate is provided with a spring leaf installing plate, be equiped with multi-disc on it and compress the spring leaf of movable blade from movable blade below, and the number of spring leaf and position are corresponding to many movable blade;
Described clamp partly is positioned at square position corresponding to the tangent line part under the Sewing machines needle plate, include many crochet hooks and hooked needle line pawl sub-assembly, be provided with a crochet hook on crochet hook and the hooked needle line sub-assembly, this crochet hook is arranged on the line pawl seat, and is provided with the line latch spring sheet that amplexiforms mutually on the line pawl seat again and keeps pin; Crochet hook and hooked needle line pawl sub-assembly are fixed on the mount pad, and are connected with the crochet hook transmission mechanism of Sewing machines, so that do vertical reciprocating motion by this;
Wherein, when carrying out thread cutting action, most movable blade are to drive forward by transmission mechanism that vertical equity ground stretches out, and crochet hook is to be positioned at the position that is level with the Sewing machines needle plate; When movable blade projects forwardly in the process at dead point, the wire loop of needlework and hooked needle line is passed and slips in one of this movable blade is colluded the groove cutting edge by movable blade; When movable blade is returned back to by the dead point in the process of original position, this hooked needle line is imported into the line latch spring and keeps between pin and be held; When this movable blade returned back to the position of dead knife, knitting and hooked needle line was cut off simultaneously.
2. the automatic disconnecting device of bearded needle longitudinal multi-needle type sewing machine as claimed in claim 1 is characterized in that: also comprise an integrated group of line plate, it is to be arranged at side before the Sewing machines needle plate, is formed with on it a plurality ofly to dial the line pawls for the pin number; And be fixed on one group of line plate couple axle to drive by the transmission mechanism in the Sewing machines and make move left and right, penetrate in order to movable blade so that the wire loop of hooked needle line enlarged.
3. the automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine as claimed in claim 1, it is characterized in that: also comprise a pneumatics blowpipe, it is arranged at the side of Sewing machines suture needle, in order to the needlework the end of a thread after the segment is blown to a side, in order to next sewing work.
4. the automatic tangent apparatus of bearded needle longitudinal multi-needle type sewing machine as claimed in claim 1 is characterized in that, the transmission mechanism of this tangent line part is that pneumatic type or electromagnetism drive formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115617A CN1043481C (en) | 1995-08-30 | 1995-08-30 | Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115617A CN1043481C (en) | 1995-08-30 | 1995-08-30 | Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1144283A CN1144283A (en) | 1997-03-05 |
| CN1043481C true CN1043481C (en) | 1999-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115617A Expired - Fee Related CN1043481C (en) | 1995-08-30 | 1995-08-30 | Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043481C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091183C (en) * | 1997-03-12 | 2002-09-18 | 高林股份有限公司 | Oblique-feeding automatic thread-cutting device of longitudinal bearded-needle type multi-needle sewing machine |
| CN100359078C (en) * | 2003-10-30 | 2008-01-02 | 星锐缝纫机股份有限公司 | Automatic thread-cutting device for cylindrical sewing machine |
| CN101696536B (en) * | 2009-10-28 | 2012-08-01 | 浙江青本缝纫机有限公司 | Automatic thread cutting device in multi-needle machine |
| CN102773695B (en) * | 2012-07-25 | 2014-09-24 | 浙江旷达纺织机械有限公司 | Hook line part used in eye aligning device of harness cord assembly |
| JP2015000083A (en) * | 2013-06-13 | 2015-01-05 | Ｃａｎｄａｒｔ株式会社 | Thread cutting device and sewing machine |
| CN107313186B (en) * | 2017-07-17 | 2023-02-24 | 上海安围智能科技股份有限公司 | Thread clamping and cutting device for mineral cotton sewing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105078A (en) * | 1993-09-20 | 1995-07-12 | G·M·普法夫有限公司 | Buttonhole machine with device for cutting thread and holding needle |
-
1995
- 1995-08-30 CN CN95115617A patent/CN1043481C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105078A (en) * | 1993-09-20 | 1995-07-12 | G·M·普法夫有限公司 | Buttonhole machine with device for cutting thread and holding needle |
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| Publication number | Publication date |
|---|---|
| CN1144283A (en) | 1997-03-05 |
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