CN1572947A - Sewing machine and thread tension regulating assembly of sewing machine - Google Patents
Sewing machine and thread tension regulating assembly of sewing machine Download PDFInfo
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- CN1572947A CN1572947A CN 200410032260 CN200410032260A CN1572947A CN 1572947 A CN1572947 A CN 1572947A CN 200410032260 CN200410032260 CN 200410032260 CN 200410032260 A CN200410032260 A CN 200410032260A CN 1572947 A CN1572947 A CN 1572947A
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- 238000009958 sewing Methods 0.000 title claims description 50
- 230000001105 regulatory effect Effects 0.000 title description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 101
- 230000003578 releasing effect Effects 0.000 claims description 84
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000009966 trimming Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 description 15
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
在本发明的线张力调节组件(10)中，设置有第1夹线板机构(14)和第2夹线板机构(15)，在第1夹线板机构(14)上，通过使第1解除销(31)向前方移动，可解除一对夹线板(32、33)所形成的张力，在第2夹线板机构(15)上，通过使第2解除销(41)向前方移动，可解除一对夹线板(42、43)所形成的张力。通过作动板(50)的摆动，可使第1、第2解除销(31、41)一起朝张力解除方向移动。此时，因是在规定的定时范围内进行解除动作，故将微调螺钉(53)与作动板(50)中的第1解除销(31)对接的部位螺合，可调整移动方向的位置，可对第1解除销(31)的解除动作的定时进行微调。
In the thread tension adjusting assembly (10) of the present invention, a first clamping plate mechanism (14) and a second clamping plate mechanism (15) are provided, and on the first clamping plate mechanism (14), by making the first clamping plate mechanism (14) 1 The release pin (31) moves forward to release the tension formed by the pair of clamps (32, 33). On the second clamp mechanism (15), by moving the second release pin (41) forward Move, can release the tension formed by a pair of clamping plates (42,43). The first and second release pins (31, 41) can be moved together in the tension release direction by the swing of the operating plate (50). At this time, because the release action is performed within the specified timing range, the position of the moving direction can be adjusted by screwing the fine-adjustment screw (53) to the part where the first release pin (31) of the operating plate (50) abuts. , the timing of the release action of the first release pin (31) can be fine-tuned.
Description
Technical field
The present invention relates to have a plurality of Sewing machines that line tension governor motion that tension force uses constituted and line tension adjusting parts of Sewing machines given to reaching the standard grade.
Background technology
2 of traditional uses (2 kinds) reach the standard grade carry out 2 row the parallel two-needle sewing machine of making in, have 2 suture needles in the bottom of shank, simultaneously have a pair of clamp mechanism, reach the standard grade for 2 that draw from 2 bobbins, can give adjustable tension force of clamp mechanism separately at an arm.For example in clear and 62 years No. 44289 communique, record a kind of Sewing machines that a pair of tension force is given device that is provided with onboard in Japanese Patent Application Publication.The structure that described each tension force is given device be with the affixed pin of plate on, insert logical a pair of clamp and remove plectane, and the adjusting nut that screws togather of pin and releasing plectane between setting-in compression helical spring.
In this occasion, when the user with push plate when bulldozing operation is carried out in the inboard, the union body that links with push plate carries out rotational action, and the releasing sleeve of being located at pin inside will be removed plectane and lift from a pair of clamp, a side tension force can be given device formed tension force releasing thus.In Japan Patent utility model registration is openly put down into 6 years No. 13775 communiques, also record line tension adjuster with the Sewing machines of spline structure again.
Yet, have 2 tension force and give in the Sewing machines of device this,, reach the standard grade when cutting off the necessary amount of reaching the standard grade in the time of need drawing next time sewing beginning in advance being undertaken 2 by thread cutting mechanism along with the end of making.Therefore owing to adopted the releasing sleeve that makes these 2 tension force give device by push plate to remove mobile structure simultaneously by user's bulldozing operation, so can by 2 tension force give device roughly releasing side by side give 2 tension force of reaching the standard grade.Can guarantee the roughly equal amount of reaching the standard grade thus.
But as previously mentioned, give the occasion that device is given the tension force of reaching the standard grade respectively when removing simultaneously by 2 tension force by shuttle-type 1 push plate, give the assembly error of device and the making error of releasing sleeve etc. because of tension force, occurring these 2 releasing sleeves sometimes can not move with roughly the same timing.In this occasion, give in the device at the tension force of the slow side of the action timing of tension force releasing, can not carry out tension force fully and remove, the amount of drawing of reaching the standard grade is reduced.
For this reason, in the past one side of producer, regularly check and find that 2 tension force give when between device deviation being arranged in the action that tension force is removed, tension force for a slow side is given device, change longer length by successively it being removed sleeve, the action that tension force is removed regularly is adjusted to the same time.But in this method, the each transposing when removing sleeve need be operated push plate, tension force removed the timing of action and checked, so exist the problem of adjusting operation complexity, the decline of Sewing machines production efficiency.
Summary of the invention
The object of the invention is, the Sewing machines can be simply the action of being removed by the last line tension of a plurality of clamp mechanism regularly adjusted and the line tension adjusting part of Sewing machines are provided.
Sewing machines of the present invention comprises: a plurality of clamp mechanism that gives tension force to reaching the standard grade; Go up, remove the position each clamp mechanism is carried out a plurality of releasing members that tension force is removed for per 1 that is arranged on these a plurality of clamp mechanisms by move to tension force from common position; And these a plurality of releasing members are removed shuttle-type start member that direction moves towards tension force together, its characteristics are, be provided with guiding mechanism, this guiding mechanism is used for being made a plurality of releasing members when tension force is removed direction and moved by described start member, can finely tune the timing of the releasing action of at least 1 releasing member.
Thus, owing to can pass through guiding mechanism, at least 1 in a plurality of releasing members timing of removing the releasing action of member is finely tuned, therefore, when the timing of the releasing action of removing member in the inter-agency occasion that deviation occurs of a plurality of clamps, can finely tune the timing of the releasing action of removing member by guiding mechanism.By this adjustment, in the predetermined timing scope, can remove action to all releasing members, can side by side many tension force of reaching the standard grade be removed simultaneously or substantially.
At this, in the so-called predetermined timing scope, even the timing that is meant how much have deviation in the action of removing member regularly, the tension force of reaching the standard grade is removed also is in the meaning in the permissible scope, for example, when reaching the standard grade the trimming action by thread cutting mechanism, in many were reached the standard grade, the timing offset that tension force is removed just can be substantially side by side with many tension force releasings of reaching the standard grade so long as belong to when beginning is sewed in not overslaugh and can draw the such degree of the roughly equal amount of reaching the standard grade next time.
In this occasion, described guiding mechanism can be made following structure: in the start member with remove the position that member docks, have the adjustment member that the adjustable positions to the relative start member of this releasing member moving direction screws togather wholely.Thus, can make simplifying the structure of guiding mechanism.And, as long as the adjustment member that will screw togather with the start member in the enterprising line position adjustment of moving direction of removing member, can finely tune the timing of the releasing action of removing member, so can be simply and carry out the adjustment operation of the action timing that tension force removes apace.
Perhaps, described guiding mechanism can be made following structure: in a plurality of releasing members at least 1 moving direction one end of removing member has the adjustment member that the adjustable positions to the moving direction of the relative start member of this releasing member screws togather wholely.Thus, can make simplifying the structure of guiding mechanism, and, as long as carry out the position adjustment, can finely tune, so can be simply and carry out the adjustment operation of the action timing that tension force removes apace the timing of the releasing action of removing member to adjusting member.
At this moment, can be in clamp mechanism, be provided with by the adjustment instrument from the outside adjusting the adjustment space that usefulness is adjusted in the position that screws togather of member.In this occasion, because by use the space, screw togather position adjustment by the adjustment instrument from the outside to what adjust member, so do not need the line tension adjusting part is taken off with the in-house adjustment that is communicated with of clamp, can adjust operation more simply.
And also described guiding mechanism can be made following structure: the middle part, way removing member has and can adjust the adjustment member of removing all lengthwise dimension of member.Thus, can make simplifying the structure of guiding mechanism, and, as long as the lengthwise dimension of removing member is adjusted by adjusting member, also can finely tune, so can be simply and carry out the adjustment operation of the action timing that tension force removes apace the timing of the releasing action of removing member.
Again, above-mentioned respectively adjust member and can constitute, at this moment, can be provided with and stop adjusted micrometer adjusting screw to rotate the locking device of usefulness by micrometer adjusting screw.Thus, the micrometer adjusting screw after can the position adjustment being finished by locking device is fixed into and can not rotates, and can prevent the adjustment deviation of adjusted micrometer adjusting screw reliably.
Yet, because of above-mentioned start member is a swing type, so in the releasing member of swing fulcrum than the clamp mechanism of remote position of start member, compare, the problem of the easy deviation of timing of action take place to remove sometimes with being positioned at closely the releasing member of position.For this reason, among the present invention,, guiding mechanism can be set, thus, can be more effectively the timing of the releasing action of removing member be adjusted in a plurality of releasing members, from the swing fulcrum of start member releasing member than remote position.
And, among the present invention, when being provided for cutting off the thread cutting mechanism of reaching the standard grade, can adopt the structure that makes described start member and the action of this thread cutting mechanism interlock.Thus, can linkedly the tension force of reaching the standard grade be removed, reach the standard grade for many, when sewing beginning next time, can draw the suitable equal amount of reaching the standard grade of cardinal principle with the trimming action of reaching the standard grade of thread cutting mechanism.
The line tension adjusting part of Sewing machines of the present invention is assembled in the sewing machine body, on substrate, comprising: a plurality of clamp mechanism that gives tension force to reaching the standard grade; Go up, remove the position each clamp mechanism is carried out a plurality of releasing members that tension force is removed for per 1 that is arranged on these a plurality of clamp mechanisms by move to tension force from common position; And these a plurality of releasing members are removed shuttle-type start member that direction moves towards tension force together, its characteristics are, be provided with guiding mechanism, this guiding mechanism is used for being made a plurality of releasing members when tension force is removed direction and moved by described start member, can finely tune the timing of the releasing action of at least 1 releasing member.
Adopt said structure, owing to can pass through guiding mechanism, at least 1 in a plurality of releasing members timing of removing the releasing action of member is finely tuned, therefore, when the timing of the releasing action of removing member in the inter-agency occasion that deviation occurs of a plurality of clamps, can finely tune the timing of the releasing action of removing member by guiding mechanism.By this adjustment, in the predetermined timing scope, can remove action to all releasing members, can side by side many tension force of reaching the standard grade be removed simultaneously or substantially.And, in the stage before sewing machine body assembling, because of can carrying out above-mentioned adjustment,, can make the adjustment operation simple so adjust operation more afterwards and compare with being assembled in sewing machine body, can improve the production efficiency of Sewing machines.
Description of drawings
Fig. 1 is the front view of the two-needle sewing machine of the present invention's one example.
Fig. 2 is the vertical section side view along the 2-2 line of Fig. 1.
Fig. 3 is the rearview of substrate and start plate.
Fig. 4 be when giving line tension the 1st, the 2nd clamp mechanism, want portion's cross section vertical view along the 2-2 line of Fig. 1.
Figure when Fig. 5 removes for line tension, suitable with Fig. 4.
Fig. 6 is figure modification, suitable with Fig. 4.
Fig. 7 is that the cross section vertical view amplifies in the portion that wants of the 1st clamp mechanism in the different modification.
Fig. 8 is for removing the enlarged front view of plectane.
Fig. 9 is another different figure modification, suitable with Fig. 7.
The specific embodiment
Below with reference to Fig. 1～Fig. 5 an example of the present invention is described.This example is that the present invention is applicable to the line tension adjusting part that is equipped in the two-needle sewing machine that can stitch out 2 road linear slits on the processing cloth.
At first as shown in Figure 1, the structure of the body 1 of two-needle sewing machine is to have on the Sewing machines base plate 2 (only illustrating the part) of not shown lower shaft and a pair of rotary shuttle in inside, has the arm 3 along the left and right directions extension of single armed shape.In described Sewing machines base plate 2, be provided with not shown thread cutting mechanism.The structure of this thread cutting mechanism is for example according to the operation of user's key, and the line (reach the standard grade and roll off the production line) after side automatically will be made below needle plate is cut off.
In not making described arm 3 of detailed icon, be provided with the upward axle that drives by not shown electrical motor of sewing machine; Synchronously driven needle bar drive device of rotation and thread take-up tension lever driving mechanism with axle on this; Make the shank 4 of driving up and down by needle bar drive device; The thread take-up tension lever 5 that drives by the thread take-up tension lever driving mechanism; And depression bar etc.In the bottom of described shank 4, be installed with by shank linkage frame 6 and can adorn 2 suture needles 7,7 of getting.
In the front side of the head 3a of arm 3, be provided with reaching the standard grade of in illustrated bobbin never, drawing and 25,26 give the line tension adjusting part 10 that tension force is used.Below with reference to Fig. 2～Fig. 5 this line tension adjusting part 10 is elaborated.
As depicted in figs. 1 and 2, the structure of this line tension adjusting part 10 is in the front face side of the substrate of vertically growing slightly 11, begins to be disposed with the 1st, the 2nd leading portion tension force from above and gives device 12,13; Forwards the guide rolls 16 of the 1st, the 2nd clamp mechanism 14,15 of Yan Shening and band shroud member also has a plurality of lead pins 19,20; Cable guiding device 21,22 etc.This line tension adjusting part 10 as shown in Figure 2, the front face side of the framework 8 by described substrate 11 being installed in the head 3a that constitutes described arm 3 is assembled in it in sewing machine body 1.
As shown in Figure 1, in the front of an arm 3, the right-hand top that is positioned at line tension adjusting part 10 is provided with 2 cable guiding devices 17,18, and (left side of guide rolls 16) position is provided with cable guiding device 23 above suture needle 7,7.Again as shown in Figures 2 and 3, be provided with the 1st, the 2nd mute pulley 11a, 11b in the upper end of substrate 11.Facial on a not shown arm 3,2 bobbins as 25,26 supply sources of reaching the standard grade are installed.
Below above-mentioned the 1st, the 2nd clamp mechanism 14,15 is made an explanation, because of the 1st clamp mechanism 14 on these right sides identical with the structure of the 2nd clamp mechanism 15 in left side, so the 1st clamp mechanism 14 is described as representative.
Shown in Fig. 2 (with Fig. 4, Fig. 5), in the installing hole of described substrate 11, be pressed into the base end part of fixing the line tension regulating shaft 30 that forwards extends.At the peripheral part of this line tension regulating shaft 30, except base end part, be formed with the threaded portion in whole zone roughly.The cardinal extremity part of on-line tension regulating shaft 30 is formed with the inserting hole 30a cylindraceous that inserts the 1st releasing pin 31 (member is suitable with removing) described later movably.And in the front side of this inserting hole 30a, it is forked that line tension regulating shaft 30 is formed tooth with being divided into two, forms a pair of grooving 30d and the inserting hole 30a of cutting apart axial region 30b, 30c and form continuously.Portion forms large-diameter portion near the cardinal extremity of this line tension regulating shaft 30, in the front side of this large-diameter portion, embeds in order that have can axially movable a pair of clamp 32,33 and remove plectane 34.
In this occasion, on the movable clamp 33 of the fixedly clamp 32 of inboard and front side, be formed with circular inserting hole respectively, so these two clamps 32,33 are rotatable.In addition, removing on the plectane 34, be formed with a pair of suitable roughly semicircular 2 inserting holes of profile of cutting apart axial region 30b, 30c with line tension regulating shaft 30, by the 34a of cross-over connection portion and a pair of the engaging of axial region 30b, 30c of cutting apart that the central portion between 2 inserting holes is formed, removing plectane 34 can not be rotated.
At the leading section of this line tension regulating shaft 30, be provided with plastic line tension adjusting knob 35.The profile of this line tension adjusting knob 35 roughly is a circular cone shape, is formed with the perforation shape screw 35a that fore-and-aft direction extends at its central part.The threaded portion of the screw 35a of this line tension adjusting knob 35 and line tension regulating shaft 30 peripheral parts screws togather.Like this, can make line tension adjusting knob 35 helicallies advance and retreat, can carry out the adjustment of fore-and-aft direction position line tension regulating shaft 30 by rotary manipulation.At this moment, setting-in compression helical spring 36 between described releasing plectane 34 and line tension adjusting knob 35.
Thus, movable clamp 33 utilizes the elastic force of this compression helical spring 36, applies pushing force towards fixing clamp 32 side directions, thereby reaches the standard grade and 25 give tension force to being held in the 1st between the 1st, the 2nd clamp 32,33.And, by rotary manipulation line tension adjusting knob 35, the position of change fore-and-aft direction, can change the pushing force of 36 pairs of movable clamps 33 of compression helical spring, acting on the 1st reach the standard grade 25 tension force is that side shifting is then big more more inwards with line tension adjusting knob 35, otherwise side shifting is then more little more forward.
Embedding in the inserting hole 30a of above-mentioned line tension regulating shaft 30 has the 1st of specific length to remove pin 31, by start plate 50 described later towards the place ahead be, tension force removes direction and moves.At this moment, the 1st front end of removing pin 31 docks from the rear with the 34a of cross-over connection portion that removes plectane 34.Like this, utilizing start plate 50 to make the 1st to remove pin 31 and forwards push when mobile, removing the elastic force that plectane 34 overcomes compression helical spring 36 and forwards move.The result can remove (tension force is zero or is bordering on zero) to the 1st reach the standard grade 25 tension force with movable clamp 33 is formed, can make the 1st to move separating 32,33 of a pair of clamps with reaching the standard grade 25 no any opposings, is in the tension force disarm state.
As shown in Figure 4 and Figure 5, described the 2nd clamp mechanism 15 is the same with the 1st above-mentioned clamp mechanism 14, by line tension regulating shaft 40; The 2nd removes pin 41 (member is suitable with removing); A pair of clamp 43,42; Remove plectane 44; Line tension adjusting knob 45; Compression helical spring 46 formations such as grade.At this moment, the length of the line tension regulating shaft 40 of the 2nd clamp mechanism 15 is slightly shorter than the line tension regulating shaft 30 of the 1st clamp mechanism 14.Thus, the 2nd clamp mechanism 15 is arranged on inboard slightly (fore-and-aft direction staggers) than the 1st clamp mechanism 14.Corresponding with it, the 2nd length of removing pin 41 of the 2nd clamp mechanism 15 is slightly shorter than the 1st of the 1st clamp mechanism 14 and removes pin 31.
As shown in Figures 2 and 3, at the rear side of substrate 11, be provided with the releasing member of substrate 11 almost parallel shapes, be start plate 50.This start plate 50 has been bent to form " ㄑ " word shape along tilted direction on the swing fulcrum 50a of a linearity, on 2 positions about this swing fulcrum 50a, utilize the stage portion of the band stepped screw 51 of pairing left and right to be supported in swingably on the substrate 11.At this moment, between substrate 11 and start plate 50, be provided with leaf spring 52.One end of this leaf spring 52 is fixed on the substrate 11 by described band stepped screw 51, utilizes the other end (bottom) that the downside of the swing fulcrum 50a of start plate 50 is applied rearward pushing force.At this moment, the position of the bottom of start plate 50 is in the described the 1st, the 2nd rear of removing pin 31,41, and this bottom becomes the 50b of releasing portion.
This start plate 50 adopts the swing mode, usually the time, utilize the elastic force of leaf spring 52, make the operating portion 50c of the upside of swinging fulcrum 50a roughly parallel with substrate 11, and make the 50b of releasing portion tilted rearward, the 1st, the 2nd of 2 the removes pin 31,41 and is positioned at the rear about leaving slightly.For example when the elastic force that operating portion 50c is overcome leaf spring 52 rearward carries out bulldozing operation, according to lever principle the 50b of releasing portion is forwards swung by swing fulcrum 50a, roughly simultaneously and together with the 1st, the 2nd remove pin 31,41 forwards (tension force releasing direction) push mobile.
At this moment, as shown in Figure 1, described operating portion 50c exposes in the front of an arm 3, and the user can carry out bulldozing operation from the place ahead.And for example shown in Figure 2, the rear that is positioned at start plate 50 bottoms in an arm 3 is provided with the releasing electromagnet actuator 55 towards the place ahead, and its plunger 55a can push from the rear to the 50b of releasing portion.Thus, automatic shearing mechanism in Sewing machines base plate 2 is located in use shears the 1st, the 2nd simultaneously and reached the standard grade 25,26 o'clock, with electromagnet actuator 55 its plunger 55a portion is forwards stretched out by driving to remove, rearward the occasion of bulldozing operation is the same with operating portion 50c with the user, can be simultaneously forwards (tension force releasing direction) remove pin 31,41 to the 1st, the 2nd and push mobile.
This line tension adjusting part 10 is provided with guiding mechanism, this guiding mechanism is used for can finely tuning the 1st, the 2nd timing of removing the releasing action of member 31,41 made the 1st, the 2nd to remove member 31,41 and remove direction towards tension force and push when mobile by start plate 50.In this example, the structure of this guiding mechanism is with the adjustment member, is micrometer adjusting screw 53, is arranged on removing on pin 31 positions of docking with the 1st in the start plate 50 the fore-and-aft direction adjustable position.
Here, the 1st distance of removing pin 31 from swing fulcrum 50a to the 1 clamp mechanism 14 of start plate 50 is slightly greater than the distance of removing pin 41 from the 2nd of swing fulcrum 50a to the 2 clamp mechanisms 15.That is, the 1st remove pin 31 1 orientation in selling 41 distances far away than the 2nd releasing.In this example, removing pin 31 positions of docking and be formed with screw 50d in start plate 50 with the 1st, this screw 50d and micrometer adjusting screw 53 screw togather.But, this micrometer adjusting screw 53, (Japanese: ホ Le セ ッ ト) suitable adjustment such as wrench or screwdriver can be rotated operation from the rear with instrument to be configured to use the holder of Hall plug.
The line tension adjusting part 10 of said structure is assembled in the arm 3, during use, according to reach the standard grade 25,26 the threading action of following method.Promptly, as shown in Figure 1, to the 1st reach the standard grade 25 from what be located at that the 1st bobbin (not shown) on the arm 3 draws, to reach the standard grade in order and connect in the 1st following path: the 1st cable guiding device 17, the 1st mute pulley 11a of substrate 11 upper ends, the 1st leading portion tension force through arm 3 give device the 12, the 1st pilot pin 19, again via 32,33 of two clamps of the 1st clamp mechanism 14; Guide rolls 16 and yarn take-up spring 16a thereof; Cable guiding device 21; Thread take-up tension lever 5; Cable guiding device 22; Cable guiding device 23 arrives the pinprick place of right side suture needle 7.At this moment, can pass through rotary manipulation line tension adjusting knob 35, according to the 1st size that 25 kind and thickness suitably adjust line tension of reaching the standard grade.
Secondly, to the 2nd reach the standard grade 26 from what the 2nd bobbin (not shown) drawn, to reach the standard grade in order and connect in the 2nd following path: the 2nd mute pulley 11b, the 2nd leading portion tension force through the 2nd cable guiding device 18, substrate 11 upper ends give device the 13, the 2nd pilot pin 20, again via 42,43 of two clamps of the 2nd clamp mechanism 15; Guide rolls 16 and yarn take-up spring 16a thereof; Cable guiding device 21; Thread take-up tension lever 5; Cable guiding device 22; Cable guiding device 23 arrives the pinprick place of left side suture needle 7.At this moment, can pass through rotary manipulation line tension adjusting knob 45, according to the 2nd size that 26 kind and thickness suitably adjust line tension of reaching the standard grade.
Refer again to effect and effect that Fig. 4, Fig. 5 illustrate the line tension adjusting part 10 of this structure below.
One side of producer, after being installed in line tension adjusting part 10 on the sewing machine body 1, in the examination and test of products when dispatching from the factory, regularly check give the 1st, the 2nd releasing action of reaching the standard grade 25,26 tension force by 14,15 pairs in the 1st, the 2nd clamp mechanism.In this occasion, the front end rough alignment of micrometer adjusting screw 53 is in the front position of start plate 50.
At first, prefer the automatic shearing action after the sewing finishing, when operator's finger with operating portion 50c rearward during bulldozing operation, start plate 50 utilizes lever principle that the 50b of releasing portion of the downside of swing fulcrum 50a is forwards swung.At this moment, simultaneously the 1st, the 2nd of pairing left and right is removed pin 31,41 by the 50b of this releasing portion and push mobilely, remove the elastic force that plectane 34,44 overcomes compression helical spring 36,46 and forwards move respectively.At this moment, by reach the standard grade the timing that 25 tension force removes and reach the standard grade the preferably same time of timing that 26 tension force removes of 33 pairs the 1st of movable clamps by 43 pairs the 2nd of movable clamps.
But because the 1st, the 2nd remove the making error of pin 31,41 and the assembly error of line tension adjusting part 10 etc., the timing removed of the tension force of the timing removed of the tension force of movable clamp 33 and movable clamp 43 is different often.For example, when the timing of the releasing action of timing ratio the 2nd clamp mechanism 15 of the releasing of the 1st clamp mechanism 14 action is slow, be because the slack-off cause of releasing action that 31 pairs of pins are removed plectane 34 is removed in the swing of start plate 50 the formed the 1st, as the reason of this occasion, be commonly referred to be the necessary length that is shorter in length than of the 1st releasing pin 31.
For this reason, the operator uses to adjust and uses instrument, and micrometer adjusting screw 53 is adjusted towards a direction rotating operation, and micrometer adjusting screw 53 is increased from start plate 50 overhang forwards.The result can make swing by start plate 50, removed regularly ahead of time by the 1st tension force of removing pin 31 formed movable clamps 33.Like this, by using the instrument of using of adjusting, increase the adjustment of micrometer adjusting screw 53 overhangs repeatedly, can do sth. in advance the 1st clamp mechanism 14 and remove the timing of moving, can make the 1st, the 2nd timing of removing pin 31,41 formed releasings actions become the same time (promptly, in the predetermined timing scope) substantially.
At this, in so-called predetermined timing scope, even be meant that removing the timing that how much has deviation in the action regularly of pin 31,41,25,26 the tension force of reaching the standard grade is removed the 1st, the 2nd also is in the meaning in the permissible scope, for example, when reaching the standard grade the trimming action by thread cutting mechanism, reaching the standard grade in 25,26, the timing offset that tension force is removed just can be substantially side by side with many tension force releasings of reaching the standard grade so long as belong to when beginning is sewed in not overslaugh and can draw the such degree of the roughly equal amount of reaching the standard grade next time.
On the other hand, timing occasion early when the releasing action of timing ratio the 2nd clamp mechanism 15 of the releasing of the 1st clamp mechanism 14 action, use the adjustment instrument that micrometer adjusting screw 53 is rotated in the opposite direction, increase the adjustment of this amount of recess (50 the pasts of start plate are towards the amount of recess at rear), can postpone the timing of the releasing action of the 1st clamp mechanism 14 thus, equally, can roughly side by side carry out removing the releasing action that pin 31,41 is carried out by the 1st, the 2nd.Like this, after the adjustment of the position of micrometer adjusting screw 53 finishes, for example use powerful bonding agent, micrometer adjusting screw 53 can be rotatably fixed on the start plate 50.In this occasion, bonding agent plays a part locking device.
Like this, in this example, with start plate 50 in the 1st remove pin 31 positions of docking and be formed with screw 50d, and micrometer adjusting screw 53 and this screw 50d are screwed togather constituted guiding mechanism, rotate micrometer adjusting screw 53 by using to adjust, can adjust the 1st timing of removing the releasing action of pin 31 with instrument.Available thus simple structure constitutes guiding mechanism.
And, by rotating operation micrometer adjusting screw 53, this protrusion amount and amount of recess are finely tuned, constituted and can carry out the 1st, the 2nd releasing action adjustment structure regularly of removing pin 31,41, therefore can be simply and adjust operation apace.
In this example, because the 1st, the 2nd clamp mechanism 14,15 and start plate 50 etc. are assembled on the substrate 11, constituted line tension adjusting part 10, therefore, before the sewing machine body 1 of packing into, can carry out the timing adjustment that the 1st, the 2nd releasing of removing pin 31,41 is moved to each line tension adjusting part 10 in advance.The result can not only make to remove action adjustment simplification regularly, and, after being assembled in line tension adjusting part 10 in the sewing machine body 1, can no longer need to remove the timing adjustment of action, can increase substantially the Sewing machines production efficiency of producer.
Again, in this example since with adjusted micrometer adjusting screw 53 usefulness the adhesive securement in position on start plate 50, so can prevent the adjustment deviation of micrometer adjusting screw 53 reliably.Again, because of start plate 50 is swing types, so deviation takes place in the timing of moving than the 1st releasing of removing pin 31 of the 1st clamp mechanism 14 of remote position side at the swing fulcrum 50a from start plate 50 easily, but owing to be provided with micrometer adjusting screw 53 at the 1st position of removing pin 31 butt joints, therefore, can carry out the 1st, the 2nd adjustment of timing of removing the releasing action of pin 31,41 more effectively.
The following describes the modification of above-mentioned example.
1] also can not adopt aforesaid micrometer adjusting screw 53, but be ready to multiple from the different pin member of the protrusion amount (amount of recess) of start plate 50, according to the requirement of removing action by the 1st, the 2nd clamp mechanism 14,15 substantially simultaneously, can adorn modus ponens ground transposing certain 1 pin member and on one side install on one side.
2] structure that also can adopt the tension force that in the predetermined timing scope, carries out the 1st, the 2nd clamp mechanism 14,15 to remove.In this occasion, even for example the releasing of a side clamp mechanism 14 is regularly with the releasing of the opposing party's clamp mechanism 15 when regularly inconsistent, also can be in the predetermined timing allowed band of setting constantly by the beginning trimming of thread cutting mechanism, removed tension force reliably, finished perfectly to remove action reaching the standard grade.
3] also micrometer adjusting screw 53 can be arranged to sell 41 corresponding forms with removing of start plate 50 from the 2nd of the near side of swing fulcrum 50a.
4] also can remove the position of start plate 50 of both sides' correspondence of pin 31,41 at the 1st, the 2nd of start plate 50, micrometer adjusting screw 53 is set respectively.
5] also can adopt by adjusting with instrument, the structure of operating micrometer adjusting screw 53 from the rear or the side of sewing machine body 1.
6] also can be as shown in Figure 6, on the on-line tension adjusting part 10A, do not use bonding agent but use locking device instead, be nut 57, will make the 1st remove pin 31A and remove the micrometer adjusting screw 53A that direction moves towards tension force and be fixed on the start plate 50A.In this occasion,, can adjust micrometer adjusting screw 53A once more by unclamping nut 57.
7] also can adjusted micrometer adjusting screw 53A be fixed on the start plate 50 by the method for welding and welding.
8] also can be as shown in Figure 7, on the on-line tension adjusting part 10B, the leading section of micrometer adjusting screw 53B and the 1st being removed pin 31B is integrally formed, as shown in Figure 8, with micrometer adjusting screw 53B and the screwhole spiro bonding that on the 34a of cross-over connection portion that removes plectane 34B, forms.In this occasion, utilize the grooving 30d of line tension regulating shaft 30B and the screw of line tension adjusting knob 35B, formed with the adjustment of the 1st 14B of clamp mechanism internal communication and used space 59, therefore, use tiny adjustment instruments such as screwdriver, can adjust with space 59 by this and rotate micrometer adjusting screw 53B from the front side, can carry out the timing adjustment of the releasing action of the 1st 14B of clamp mechanism simply.
9] also can be as shown in Figure 9, on the on-line tension adjusting part 10B, remove pin 31C with the 1st and be divided into two at the middle part, way of its length direction, make the rearward end of micrometer adjusting screw 53C and preceding half 31a of pin portion integrally formed, the screw that the leading section of the part of this micrometer adjusting screw 53C and the later half pin 31b of portion is formed screws togather.In this occasion, by preceding relatively half 31a of pin portion of micrometer adjusting screw 53C, the later half pin 31b of portion is carried out rotating operation, the 1st length of removing on all tension force releasing directions of pin 31C is changed.Like this, change, can carry out the adjustment of timing of the releasing action of the 1st 14C of clamp mechanism simply by the length that the 1st tension force of removing pin 31C is removed on the direction.
10] the present invention also is applicable to the line tension adjusting part 10 that uses in the multineedle sewing machine with 3 above suture needles 7, promptly, be applicable to the line tension adjusting part 10 of the clamp mechanism that is provided with more than 3.
11] also can be arranged on micrometer adjusting screw 53 on the start plate 50, be arranged on the 1st end of removing pin 31, be arranged on the 1st any occasion of removing in the middle part, way of pin 31, perhaps also it can be made up setting.
12] also can on the basis of existing technology and tradesman's technique known, increase various changes.And the present invention is also applicable to the various Sewing machiness that various line tension adjusting parts 10 are installed or also be applicable to have the not Sewing machines of a plurality of clamp of Componentized mechanism.
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003167616 | 2003-06-12 | ||
| JP2003167616A JP4186211B2 (en) | 2003-06-12 | 2003-06-12 | Sewing machine with thread tension unit and thread tension unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1572947A true CN1572947A (en) | 2005-02-02 |
| CN100593047C CN100593047C (en) | 2010-03-03 |
Family
ID=34093378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410032260A Expired - Fee Related CN100593047C (en) | 2003-06-12 | 2004-03-25 | Sewing machine and thread tension regulating assembly of sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4186211B2 (en) |
| CN (1) | CN100593047C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718026B (en) * | 2008-10-09 | 2013-03-06 | Juki株式会社 | Suture adjusting device of sewing machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4841870B2 (en) * | 2005-06-15 | 2011-12-21 | Ｊｕｋｉ株式会社 | sewing machine |
| JP5488000B2 (en) | 2009-02-02 | 2014-05-14 | リコーイメージング株式会社 | High zoom ratio zoom lens system |
| CN105568577A (en) * | 2015-12-28 | 2016-05-11 | 常熟市古里镇淼泉利达机械厂 | Crocheting device of sewing machine |
-
2003
- 2003-06-12 JP JP2003167616A patent/JP4186211B2/en not_active Expired - Lifetime
-
2004
- 2004-03-25 CN CN200410032260A patent/CN100593047C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718026B (en) * | 2008-10-09 | 2013-03-06 | Juki株式会社 | Suture adjusting device of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100593047C (en) | 2010-03-03 |
| JP2005000414A (en) | 2005-01-06 |
| JP4186211B2 (en) | 2008-11-26 |
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