CN1637189A - Yarn end processing device for german seam sewing machine - Google Patents
Yarn end processing device for german seam sewing machine Download PDFInfo
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- CN1637189A CN1637189A CNA2004100116593A CN200410011659A CN1637189A CN 1637189 A CN1637189 A CN 1637189A CN A2004100116593 A CNA2004100116593 A CN A2004100116593A CN 200410011659 A CN200410011659 A CN 200410011659A CN 1637189 A CN1637189 A CN 1637189A
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- 238000009958 sewing Methods 0.000 title claims abstract description 94
- 239000004744 fabric Substances 0.000 claims abstract description 46
- 238000010417 needlework Methods 0.000 claims description 212
- 230000000694 effects Effects 0.000 claims description 20
- 238000009966 trimming Methods 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000037361 pathway Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/06—Devices for severing the needle or lower thread and for disposing of the severed thread end ; Catching or wiping devices for the severed thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
- D05B29/08—Presser feet comprising relatively-movable parts
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2305/00—Operations on the work before or after sewing
- D05D2305/32—Measuring
- D05D2305/36—Quality control
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The thread end processing device of zigzag stitch sewing machine is provided with a wiper for picking a needle thread end part suspended from a needle and moving it to the side after sewing and a needle thread cutting knife, a rotary disk type needle thread tension device, a pretension mechanism for imparting tension to the delivery of the needle thread beforehand and an auxiliary needle thread holding mechanism capable of elastically holding the needle thread on the upper side in a needle thread supply direction from the pretension mechanism. To stabilize the withdrawal amount of a needle thread at the time of a thread end processing and to perform an appropriate thread end processing with less quality decline and needle thread loss even while appropriate stitch balancing thread tension is maintained at all times and prescribed zigzag stitches are surely formed regardless of the change of the thickness of a sewing cloth or the like at the time of normal sewing.
Description
Technical field
The present invention relates to the line end treating apparatus of saw-teeth like sewing machine, specifically relate to following structure, that is: when the sewing finishing of the double diagonal stitch of saw-teeth like sewing machine, along with the rising of pin after carrying out trimming below the sewing fabric, grabbing the line device by needlework will catch along with the needlework end parts that pin descends, its side to the portion of making is moved, make when beginning at following 1 sewing fabric, this above sewing fabric near the use cutting knife needlework that move to this side are carried out the line end treating apparatus that trimming is handled the saw-teeth like sewing machine of such structure.
Background technology
In saw-teeth like sewing machine, during sewing finishing, if under the state that the needlework that will descend along with pin are still placed, begin making of following 1 sewing fabric, then the needlework end parts that descends along with pin is followed to descend and is moved and be imported into the downside of sewing fabric, during counting the making of pin part, gone in the stitching by strand, its needlework end parts is stranded in the double diagonal stitch, produces the so-called ropy stitching that is called black nido.In order to prevent that this stitching quality of making when beginning from worsening, disclose shown in the flat 5-32067 communique as the practical new case of Japan, known have a kind of saw-teeth like sewing machine with line end treating apparatus, this line end treating apparatus grabs the line device by needlework and the needlework thread trimmer constitutes, it is that the end parts of the needlework that will descend along with pin when sewing finishing catches on that described needlework are grabbed the line device, moves to the side.Described needlework thread trimmer be next time to when beginning of making of sewing fabric, the carrying out of partly making along with the number pins carries out trimming near the needlework that move to the side that are booked are on sewing fabric.
Again, in traditional saw-teeth like sewing machine, for example shown in the Japanese patent laid-open 10-211380 communique, supply with to the needlework of pin from bobbin winoler in order correctly and sleekly to guarantee to make usually, generally be to adopt to have the structure of swinging needlework tension regulator and pre-tension mechanism, described needlework tension regulator, have at the outer circumferential surface section disk and the moment of torsion that will rub that keeps more than 1 circle of the needlework in the needlework feed path way can being reeled at least and offer the rotating spring of this disk, when supplying with along with the needlework of making action, the revolution by disk offers needlework with the tension force of regulation.Described pre-tension mechanism is arranged on the upper side from the needlework direction of the supply of needlework tension regulator, provides pre-tension to the action of pulling out by the needlework tension regulator.
From above-mentioned each traditional skill is stated as can be seen, in saw-teeth like sewing machine, when the sewing finishing of 1 sewing fabric, after carrying out trimming below the sewing fabric, grabbing the line device by needlework will catch along with the needlework end parts that pin descends, move side to the portion of making, when following 1 sewing fabric is made beginning, use near above the sewing fabric needlework cutting knife needlework end parts that moves to this side to be carried out during the such line end of trimming handles at this, when pulling out of needlework controlled, the thread tension when general rule is to use original conduct to make was usually regulated described needlework tension regulator and the pre-tension mechanism that is had, use under the constant state of the tension force that when making usually, sets.In this occasion, following problem can take place.
Promptly, pre-tension mechanism is used for providing pre-tension to needlework, to prevent from when making usually, to take place the non-rotating thread tension sliding phenomenon of disk of needlework tension regulator, when making usually, when the tension force of needlework tension regulator being regulated according to the thickness of sewing fabric and the flexibility of cloth tissue etc., also pre-tension is regulated accordingly with the tension force after this adjusting and used, thus, no matter the thickness of sewing fabric and the flexibility of cloth tissue etc. have anything to change the thread tension in the time of all correctly guaranteeing to make usually.
This traditional pre-tension mechanism is the member that can regulate (setting) this pre-tension within the specific limits, thread tension when the main starting point is correctly to guarantee to make usually, therefore, if the constant pre-tension of being regulated when making usually, needlework when this pre-tension mechanism is used for line end and handles pull out control, then tend to make needlework along with needlework are grabbed the derived quantity instability that the line device moves to the side.Promptly, thread tension when considering to make usually and the too strong occasion of pre-tension of the pre-tension mechanism that sets, make needlework grab the line device catches the needlework end parts when move the side when handling for line end, needlework are grabbed the line device from needlework and are deviate from, and the needlework end parts of ormal weight can not be drawn to the side.The result is that the needlework end parts is still stayed between following 1 sewing fabric and the presser feet, exists the problem that the beginning part forms the ropy stitching that is called black nido of making at sewing fabric next time.Otherwise, the occasion that the pre-tension of pre-tension mechanism is too weak, along with needlework are grabbed the line device to the moving of side, needlework are drawn out too much for line end handles, and the result is long by the needlework length of trimming, correspondingly causes the too many problem of needlework waste.
In view of the above-mentioned problems, the object of the invention is, the device of following feature is provided, that is: no matter the thickness of sewing fabric and flexibility of cloth tissue etc. have any variation when making usually, all the time can guarantee correct thread tension, can not only form the double diagonal stitch of regulation reliably, and the derived quantity stabilisation of needlework when line end is handled, the such ropy stitching of black nido can not take place, the needlework waste can be reduced again, the line end treating apparatus of the saw-teeth like sewing machine of correct line end processing can be carried out.
Summary of the invention
To achieve these goals, the line end treating apparatus of saw-teeth like sewing machine of the present invention, have with the revolution of machine spindle and carry out rotating thread take-up tension lever mechanism synchronously, cloth feeding mechanism and pin swing mechanism, to form double diagonal stitch, and comprise: the needlework tension regulator, pre-tension mechanism, needlework are grabbed line device and needlework thread trimmer, described needlework tension regulator, have at the outer circumferential surface section disk and the moment of torsion that will rub that keeps more than 1 circle of the needlework in the needlework feed path way can being reeled at least and offer the rotating spring of this disk, when supplying with along with the needlework of making action, revolution by disk offers needlework with the tension force of regulation and can pull out, described pre-tension mechanism, be arranged on upper side from the needlework direction of the supply of this needlework tension regulator, for pulling out by described needlework tension regulator, provide pre-tension to needlework, described needlework are grabbed the line device, when sewing finishing, will be along with the needlework end parts that pin descends is caught, this is moved to the portion side of making by this needlework end parts of catching, described needlework thread trimmer, the needlework that move to the portion side of making that to be grabbed that the line device catches by these needlework carry out trimming near on by sewing fabric, it is characterized in that, at upper side from the needlework direction of the supply of described pre-tension mechanism, but be provided with the auxiliary needlework maintaining body that the needlework elasticity in the feed path way is kept, and be provided with the effect switching mechanism, described effect switching mechanism keeps removing in the elasticity that will assist the needlework maintaining body to needlework, simultaneously the active state of making usually that provides pre-tension to needlework by described pre-tension mechanism with will remove by the pre-tension that described pre-tension mechanism provides, can switch between the two by the active state of described auxiliary needlework maintaining body simultaneously the needlework end portion treatment of needlework elasticity maintenance.
Employing has the line end treating apparatus of the saw-teeth like sewing machine of the present invention of said structure, when making usually, switch to the active state of making usually by acting on switching mechanism, accordingly the formed needlework tension force of needlework tension regulator is regulated with the thickness of sewing fabric and the flexibility of cloth tissue etc., also the formed pre-tension of pre-tension mechanism is regulated accordingly with it and to be used, can guarantee correct thread tension all the time, no matter what takes place and changes in the thickness of sewing fabric and the flexibility of cloth tissue etc., can both be reliably and form the double diagonal stitch of regulation well.Thus, after to 1 sewing fabric sewing finishing, carry out needlework and catch when action when grab the line device by needlework, the effect switching mechanism is switched to the active state of needlework end portion treatment, with the releasing that provides of the pre-tension of pre-tension mechanism, simultaneously by auxiliary needlework maintaining body with the maintenance of needlework elasticity, thus, be altered to the needlework that make in the feed path way and be suitable for the needlework confining force that line end is handled, the derived quantity stabilisation of the needlework when line end is handled.Like this, can prevent that needlework from grabbing from needlework remains in after the line device is deviate from next time between the sewing fabric and presser feet and forms the ropy stitching of black nido, and it is very long by the needlework length of trimming to prevent that needlework are drawn out the back too much, cause the needlework waste too many, thread tension when making usually is irrelevant, has to carry out the effect that correct line end is handled all the time reliably.
In the line end treating apparatus of saw-teeth like sewing machine of the present invention, put down in writing as claim 2, adopt and to regulate pre-tension mechanism respectively and provide pre-tension and auxiliary needlework maintaining body structure the elasticity confining force of needlework to needlework, thus, the adjustable range of the needlework confining force in the time of can enlarging the adjustable range of the thread tension when making usually and line end respectively and handle, even for the very big sewing fabric of flexibility difference of thickness and cloth tissue, also can carry out correct zigzag sewing and line end thereof all the time and handle.
Again, in the line end treating apparatus of saw-teeth like sewing machine of the present invention, put down in writing as claim 4, also can will assist needlework maintaining body and pre-tension mechanism to be installed on the Sewing machines support arm respectively independently, put down in writing as claim 3, preferably with described auxiliary needlework maintaining body and switch the effect switching mechanism of the active state of this auxiliary needlework maintaining body and pre-tension mechanism, be installed in integrated and install on the Sewing machines support arm on the wire guide plate that described pre-tension mechanism uses.In this occasion, for pre-tension mechanism is installed, can directly utilize traditional existing installation portion of being located in the saw-teeth like sewing machine, to assist needlework maintaining body and effect switching mechanism to be installed on the Sewing machines support arm, do not need to transform the Sewing machines support arm thus, and the channel path of needlework (feed path) also needn't be done big change, can not only guarantee the supply effect of needlework all the time, and has the effect of the invention described above.
Again, described needlework thread trimmer can be arranged near the top position of sewing fabric, and as claim 5 record, preferably the needle tray that falls with presser feet intersects, and is fixed on the presser feet.Particularly as claim 6 record, the occasion below the needlework thread trimmer being fixed in presser feet can be carried out trimming and be handled under not residual meeting causes the state of the needlework end parts that sewing quality reduces.
Other purpose of the present invention and effect thereof can be able to clearly by embodiment described later.
The simple declaration of accompanying drawing
Fig. 1 is the stereoscopic figure of expression saw-teeth like sewing machine complete machine of the present invention.
Fig. 2 is the stereogram that the same saw-teeth like sewing machine is wanted portion.
Fig. 3 is the amplification stereogram that the same saw-teeth like sewing machine is wanted portion.
Fig. 4 is the stereogram of wanting portion of the initial stage active state in the treatment situation of the needlework end parts of the same saw-teeth like sewing machine of explanation.
Fig. 5 is the stereogram of wanting portion of the 2nd active state in the treatment situation of the same needlework end parts of explanation.
Fig. 6 is the stereogram of wanting portion of the 3rd active state in the treatment situation of the same needlework end parts of explanation.
Fig. 7 is the stereogram of wanting portion of the final active state in the treatment situation of the same needlework end parts of explanation.
The specific embodiment
Embodiments of the invention are described with reference to the accompanying drawings.
Fig. 1 is the stereoscopic figure of expression saw-teeth like sewing machine complete machine of the present invention, and Fig. 2 wants the stereogram of portion for it.The structure of this saw-teeth like sewing machine 1 is to be provided with thread take-up tension lever mechanism 5 in the concavity peristome 2A of the band switching protector 6 of the front face formation of Sewing machines support arm 2; this thread take-up tension lever mechanism 5 is by (on business knowing with the interior main shaft that is loaded on Sewing machines support arm 2; so not shown) the revolution thread take-up tension lever 4 that carries out rotating revolution plectane 3 synchronously and be fixed in this revolution plectane 3 form; the crank mechanism that passes through on described main shaft (is on business known simultaneously; so not shown) bottom of the shank 7 that connects is installed with pin 8, and in the bottom of depression bar 9 presser feet 10 is installed.In described Sewing machines support arm 2, be provided with and form the pin swing mechanism that double diagonal stitch is used, in the bottom that is arranged at the needle plate 12 on the Sewing machines base plate 11, setting cutting facility, cloth feeding mechanism, shuttle mechanism etc., these members are well known, the Therefore, omited diagram and the explanation thereof of concrete structure.In addition, the symbol 30 among Fig. 1 is the coiler devices that roll off the production line, the 31st, and the coiling pre-tension mechanism of rolling off the production line.
Be provided with in the front end bottom of described Sewing machines support arm 2 that needlework are grabbed line device (hereinafter referred to as dialling the line device) 21 and auxiliary needlework are grabbed line device 27.The described group of line device 21 be these Sewing machines support arm 2 upper supports in the needlework that fixing needlework are grabbed line seat 28 grab bobbin 29 around, but structure by not shown cylinder wobble drive, sewing finishing is along with the rising of pin 8, below sewing fabric, carry out after the trimming by described cutting facility, the end parts of the needlework 13 that will descend along with pin 8 catches on, and the needlework end parts that is caught on moves towards the side of making portion's (needle plate 12).It is the needlework end parts that move to the side that will be caught on by this group line device 21 that described auxiliary needlework are grabbed line device 27, be clipped in and this group line device 21 between keep.Again, below described presser feet 10, with presser feet 10 fixing needlework thread trimmer 22 with falling needle tray 10a cross-like, the purposes of this needlework thread trimmer 22 is to make when beginning at sewing fabric next time, will be caught the needlework end parts 13a of back in move the side to carry out trimming at this near above the sewing fabric by described group of line device 21.
On the other hand, sidepiece at described Sewing machines support arm 2, the thread tension of controlling usefulness of pulling out as the needlework 13 in the feed path way that illustrated bobbin winoler is never arrived pins 8 via the thread take-up tension lever 4 of fixation cable guiding device 17,18 and described thread take-up tension lever mechanism 5, as shown in Figure 3, be equipped with: helicoid needlework tension regulator 14; From the upper side of the needlework direction of the supply of this needlework tension regulator 14, for the pre-tension mechanism 15 that pre-tension is provided by pulling out of described needlework tension regulator 14; And from the upper side of the needlework direction of the supply of this pre-tension mechanism 15, in needlework end parts (aftermentioned) but catch and move and auxiliary needlework maintaining body 16 that trimming keeps needlework 13 elasticity when handling.
Described swinging needlework tension regulator 14, the rotary disk 14A that keeps more than 1 circle by needlework 13 being reeled, push this rotary disk 14A and its friction moment of torsion offered this rotating spring 14B and regulate this spring 14B the thread tension adjusting nut 14c of the pushing force of disk is constituted in its outer circumferential surface section, when supplying with along with the needlework of making action, the revolution by rotary disk 14A offers needlework 13 with the tension force of regulation.
The knob 15C that described pre-tension mechanism 15 pushes the spring 15B of these 2 tension adjustment dish 15A, 15A and regulates the pushing force of this spring 15B by 2 tension adjustment dish 15A, 15A, is mutually constituted, when needlework 13 pass through between 2 tension adjustment dish 15A, the 15A, provide pre-tension to needlework 13.
Described auxiliary needlework maintaining body 16 is the same with aforesaid pre-tension mechanism 15, the knob 16C that pushes the spring 16B of these 2 tension adjustment dish 16A, 16A and regulate the pushing force of this spring 16B is constituted by 2 tension adjustment dish 16A, 16A, mutually, when needlework 13 pass through between 2 tension adjustment dish 16A, the 16A, needlework 13 are flexibly carried out clamping keep.The effect of hanging wire pin 19 is with this auxiliary needlework maintaining body 16 and the described pre-tension of needlework 13 guiding mechanism 15, be installed on the wire guide plate 20, this wire guide plate 20 is for described pre-tension mechanism 15 being installed on the Sewing machines support arm and be provided with these hanging wire pin 19 integrateds.
Described wire guide plate 20 is provided with effect switching mechanism 26, this effect switching mechanism 26 is by thread tension releasing disc 24 and the cylinder 25 of these thread tension releasing disc 24 reciprocally swingings is constituted, this thread tension releasing disc 24 can be swung as the center with the fulcrum 23 of the substantial middle portion between described pre-tension mechanism 15 and the auxiliary needlework maintaining body 16, make thread tension releasing disc 24 swings by cylinder 25, with these two ends board 24a, 24b embeds 2 tension adjustment dish 15A of described pre-tension mechanism 15 selectively, 2 tension adjustment dish 16A of 15A and auxiliary needlework maintaining body 16, between the 16A, the elasticity at auxiliary 16 pairs of needlework 13 of needlework maintaining body keeps removing thus, provide the active state of making usually of pre-tension and the pre-tension that pre-tension mechanism 15 is provided to remove to needlework 13 by pre-tension mechanism 15 simultaneously, the active state of being handled by the line end of assisting 16 pairs of needlework of needlework maintaining body 13 to carry out the elasticity maintenance can switch between the two simultaneously.
In the saw-teeth like sewing machine of said structure, when common zigzag sewing, with fulcrum 23 is that the center makes the arrow a direction swing of the thread tension releasing disc 24 of effect switching mechanism 26 towards Fig. 2 and Fig. 3, switch to 2 tension adjustment dish 16A that are embedded into auxiliary needlework maintaining body 16 by a 25b of end plate portion with this thread tension releasing disc 24, the active state of making usually between the 16A, the elasticity of auxiliary 16 pairs of needlework 13 of needlework maintaining body is kept removing, the needlework tension force that is produced according to the needlework tension regulator 14 of correspondences such as the flexibility adjusting of the thickness of sewing fabric and cloth tissue is simultaneously regulated the pre-tension of pre-tension mechanism 15 and to be used.Like this, can keep correct thread tension to regulate all the time, no matter what takes place and changes in the thickness of sewing fabric and the flexibility of cloth tissue etc., also can be reliably and form the double diagonal stitch of stipulating well.
When 1 sewing fabric is finished to make, along with the rising of pin 8 by cutting facility after carrying out trimming below the sewing fabric, when the line end that carries out trimming at the needlework end parts 13a to the needlework 13 that descend along with pin 8 is handled, with fulcrum 23 is the center, make of the arrow b direction swing of the thread tension releasing disc 24 of effect switching mechanism 26 towards Fig. 2 and Fig. 3, switch to 2 tension adjustment dish 15A that are embedded into pre-tension mechanism 15 by a 25a of end plate portion with this thread tension releasing disc 24, the active state that line end between the 15A is handled, and the pre-tension that pre-tension mechanism 15 provides is removed, by auxiliary needlework maintaining body 16 needlework 13 elasticity are kept simultaneously.
Under this state, dial line device 21 and produce action, the needlework end parts 13a that descends along with pin 8 is dialled line device 21 to catch on and move towards the side as shown in Figure 4, is held then to remain on and auxiliary needlework are grabbed between the line device 27.Then, with following 1 sewing fabric W be positioned over presser feet 10 below, as shown in Figure 5 following 1 sewing fabric W is begun to make.Under the state of Fig. 6 after having carried out the making of several pins part, when further making, quilt group line device 21 colludes in the side and moves, just be held and remain in this group line device 21 and auxiliary needlework and grab the knife edge of the needlework thread trimmer 22 of needlework end parts 13a below being fixed in presser feet 10 between the line device 27 and contact, carrying out trimming as shown in Figure 7.Needlework end parts 13a behind the trimming next time dial 21 actions of line device the time, and the clamping that auxiliary needlework are grabbed between the line device 27 is disengaged, such as abandoning and be recycled in the bag by modes such as air suctions.
When above the sort of line end is handled, because the needlework 13 in the feed path way are embedded into 2 tension adjustment dish 16A of auxiliary needlework maintaining body 16, between the 16A, carrying out elasticity by the needlework confining force that is suitable for the line end processing keeps, therefore, can realize the stabilisation of the derived quantity of group 21 pairs of needlework 13 of line device, can prevent that needlework end parts 13a from deviating from from dialling line device 21, prevent to remain between following 1 sewing fabric W and the presser feet 10 and form the ropy stitching of black nido, and can prevent that the needlework 13 excessive backs of pulling out are very long by the needlework end parts length of trimming, make the needlework waste that abandons too much, thus, thread tension when making usually is irrelevant, can carry out correct line end all the time and handle.
In the foregoing description, expression be to be arranged on pre-tension mechanism 15 is installed on structure on the wire guide plate 20 of Sewing machines support arm 2 usefulness with will assisting needlework maintaining body 16 and effect switching mechanism 26 integrateds, but also these auxiliary needlework maintaining bodies 16 and effect switching mechanism 26 can be arranged at the wire guide plate with described wire guide plate 20 splits, be installed on the Sewing machines support arm 2 with this.
Again, in the foregoing description, with needlework thread trimmer 22 be fixed on presser feet 10 below, but also can be fixed on presser feet 10 above.
Again, in the foregoing description, adopted the structure that needlework end parts 13a that this quilt catches on remains in before by needlework thread trimmer 22 trimmings always and auxiliary needlework are grabbed between the line device 27 to be described to the line device 21 of dialling that catches on needlework end parts 13a, carried out structure till the trimming but also can adopt the needlework end parts that moves to the side after being caught on by group line device 21 to remain to always by this group line device 21.
And, in the foregoing description, two ends board 24a, the integrally formed structure of 24b to the thread tension releasing disc 24 in the effect switching mechanism 26 are described, but also can make these two ends board 24a, 24b split type, the structure that employing can be regulated the degree of depth that is embedded between 2 tension adjustment dish 15A, 15A and 2 tension adjustment dish 16A, the 16A is finely tuned pre-tension and needlework confining force thus.
Claims (7)
1. the line end treating apparatus of a saw-teeth like sewing machine, have with the revolution of machine spindle and carry out rotating thread take-up tension lever mechanism synchronously, cloth feeding mechanism and pin swing mechanism, to form double diagonal stitch, and comprise: the needlework tension regulator, pre-tension mechanism, needlework are grabbed line device and needlework thread trimmer, described needlework tension regulator, have at its outer circumferential surface section disk and moment of torsion that will rub that keeps more than 1 circle of the needlework in the needlework feed path of pin way can being reeled at least and offer the rotating spring of this disk, when supplying with along with the needlework of making action, revolution by disk offers needlework with the tension force of regulation and can pull out, described pre-tension mechanism, be arranged on upper side from the needlework direction of the supply of this needlework tension regulator, for pulling out by described needlework tension regulator, the pre-tension that sliding phenomenon does not take place is provided to needlework, described needlework are grabbed the line device, when sewing finishing, will be along with the needlework end parts that pin descends is caught, this is moved to the portion side of making by this needlework end parts of catching, described needlework thread trimmer, the needlework that move to the portion side of making that to be grabbed that the line device catches by these needlework carry out trimming near on by sewing fabric, it is characterized in that
At upper side from the needlework direction of the supply of described pre-tension mechanism, but be provided with the auxiliary needlework maintaining body that the needlework elasticity in the feed path way is kept, and be provided with the effect switching mechanism, described effect switching mechanism keeps removing in the elasticity that will assist the needlework maintaining body to needlework, simultaneously the active state of making usually that provides pre-tension to needlework by described pre-tension mechanism with will remove by the pre-tension that described pre-tension mechanism provides, can switch between the two by the active state of described auxiliary needlework maintaining body simultaneously the needlework end portion treatment of needlework elasticity maintenance.
2. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 1 is characterized in that, adopts can to regulate described pre-tension mechanism respectively and provide pre-tension and the described auxiliary needlework maintaining body structure to the elasticity confining force of needlework to needlework.
3. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 1 or 2, it is characterized in that, described auxiliary needlework maintaining body and this are switched the effect switching mechanism of the active state of this auxiliary needlework maintaining body and pre-tension mechanism, be installed on the wire guide plate that the described pre-tension of installation mechanism uses on the Sewing machines support arm integrated.
4. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 1 or 2 is characterized in that, described auxiliary needlework maintaining body and pre-tension mechanism are installed in respectively on the Sewing machines support arm independently,
5. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 1 is characterized in that, described needlework thread trimmer intersects with the needle tray that falls of presser feet, is fixed on the presser feet.
6. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 5 is characterized in that, described needlework thread trimmer be fixed on presser feet below.
7. the line end treating apparatus of saw-teeth like sewing machine as claimed in claim 5 is characterized in that, described needlework thread trimmer be fixed on presser feet above.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003437027 | 2003-12-29 | ||
| JP2003-437027 | 2003-12-29 | ||
| JP2003437027A JP3757335B2 (en) | 2003-12-29 | 2003-12-29 | Thread end processing device for staggered sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1637189A true CN1637189A (en) | 2005-07-13 |
| CN1637189B CN1637189B (en) | 2010-12-08 |
Family
ID=34815969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100116593A Expired - Fee Related CN1637189B (en) | 2003-12-29 | 2004-12-29 | Thread end processing device for german seam sewing machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3757335B2 (en) |
| KR (1) | KR100735896B1 (en) |
| CN (1) | CN1637189B (en) |
| TW (1) | TW200523424A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012607B (en) * | 2007-02-14 | 2012-07-04 | 冯银存 | Automatic thread releasing device of pseudo handcraft bead edging machine |
| CN102797120A (en) * | 2011-05-23 | 2012-11-28 | 大和缝纫机制造株式会社 | Method for preventing stitch from coming apart, device for preventing stitch from coming apart, and stitch structure |
| CN106978679A (en) * | 2016-01-15 | 2017-07-25 | Juki株式会社 | Bobbin casing |
| CN110295463A (en) * | 2018-03-23 | 2019-10-01 | 兄弟工业株式会社 | Sewing machine |
| CN110295462A (en) * | 2018-03-23 | 2019-10-01 | 兄弟工业株式会社 | Sewing machine |
| CN110656447A (en) * | 2018-06-29 | 2020-01-07 | 兄弟工业株式会社 | Sewing machine |
| CN113699707A (en) * | 2020-05-20 | 2021-11-26 | 浙江多乐缝纫机有限公司 | Thread clamping structure, sewing machine and control method of sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5339110B2 (en) * | 2005-11-17 | 2013-11-13 | ヤマトミシン製造株式会社 | Sewing thread supply device |
| KR101495010B1 (en) | 2014-11-10 | 2015-02-24 | 조세제 | The stitch tensions control device of a sewing machine |
| CN106120197B (en) * | 2016-08-10 | 2019-10-25 | 湖州冠炯机电科技有限公司 | Cut rope device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2539676B2 (en) * | 1988-12-05 | 1996-10-02 | シンガー日鋼株式会社 | Needle threading device for sewing machine |
| JP4010629B2 (en) * | 1998-03-05 | 2007-11-21 | Ｊｕｋｉ株式会社 | Sewing thread tension device |
| CN1101491C (en) * | 1999-06-28 | 2003-02-12 | 重机株式会社 | Thread tension controller for sewing machine |
-
2003
- 2003-12-29 JP JP2003437027A patent/JP3757335B2/en not_active Expired - Fee Related
-
2004
- 2004-11-05 TW TW093133789A patent/TW200523424A/en not_active IP Right Cessation
- 2004-12-13 KR KR1020040104684A patent/KR100735896B1/en not_active IP Right Cessation
- 2004-12-29 CN CN2004100116593A patent/CN1637189B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012607B (en) * | 2007-02-14 | 2012-07-04 | 冯银存 | Automatic thread releasing device of pseudo handcraft bead edging machine |
| CN102797120A (en) * | 2011-05-23 | 2012-11-28 | 大和缝纫机制造株式会社 | Method for preventing stitch from coming apart, device for preventing stitch from coming apart, and stitch structure |
| US8943985B2 (en) | 2011-05-23 | 2015-02-03 | Yamato Mishin Seizo Kabushiki Kaisha | Seam ravel preventing method, seam ravel preventing apparatus and seam structure |
| CN102797120B (en) * | 2011-05-23 | 2015-03-18 | 大和缝纫机制造株式会社 | Method for preventing stitch from coming apart, device for preventing stitch from coming apart, and stitch structure |
| CN106978679A (en) * | 2016-01-15 | 2017-07-25 | Juki株式会社 | Bobbin casing |
| CN110295463A (en) * | 2018-03-23 | 2019-10-01 | 兄弟工业株式会社 | Sewing machine |
| CN110295462A (en) * | 2018-03-23 | 2019-10-01 | 兄弟工业株式会社 | Sewing machine |
| CN110656447A (en) * | 2018-06-29 | 2020-01-07 | 兄弟工业株式会社 | Sewing machine |
| CN110656447B (en) * | 2018-06-29 | 2021-12-03 | 兄弟工业株式会社 | Sewing machine |
| CN113699707A (en) * | 2020-05-20 | 2021-11-26 | 浙江多乐缝纫机有限公司 | Thread clamping structure, sewing machine and control method of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200523424A (en) | 2005-07-16 |
| TWI324648B (en) | 2010-05-11 |
| KR20050069885A (en) | 2005-07-05 |
| KR100735896B1 (en) | 2007-07-04 |
| JP3757335B2 (en) | 2006-03-22 |
| JP2005192688A (en) | 2005-07-21 |
| CN1637189B (en) | 2010-12-08 |
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