CN1441107A - Chain type stitch sewing machine - Google Patents
Chain type stitch sewing machine Download PDFInfo
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- CN1441107A CN1441107A CN 03106458 CN03106458A CN1441107A CN 1441107 A CN1441107 A CN 1441107A CN 03106458 CN03106458 CN 03106458 CN 03106458 A CN03106458 A CN 03106458A CN 1441107 A CN1441107 A CN 1441107A
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Abstract
The objective of this invention is to provide a sewing machine capable of preventing leakage of lubricant which pollutes objects under sewing while ensuring durability of the sewing machine. In a sewing machine in accordance with this invention, a sewing machine frame 2 is provided with a needle mechanism receipt section 18, a cloth feeding mechanism receipt section 17 and an upper looper mechanism receipt section 21. Moving parts in at least one of the receipt sections of the needle mechanism receipt section, cloth feeding mechanism receipt section, and upper looper mechanism receipt section comes into contact with lubricating components 65, 70a, 70b, 83, 83' and 140 containing lubricant to provide lubricating effects.
Description
Technical field
The present invention relates to a kind ofly be suitable for preventing because of the chain sitch sewing machine of oil leak to the pollution of making thing.
Background technology
In general, on carrying out the double-chain stitching of high speed, carrying out chain sitch sewing machine that bound edge makes, be provided with the bindiny mechanism that the driving force of machine spindle is passed to eedle driving shaft, work feed driving shaft, goes up each driving shaft of rotating shuttle driving shaft etc., and the driving force from each driving shaft output pass to shank eedle mechanism, pass to feed dog cloth feeding mechanism, pass to the last rotary shuttle mechanism of rotating shuttle.And the sliding position (motive position) that supports each part is slidably arranged in these mechanisms.
The sliding position of chain sitch sewing machine in the past like this, as everyone knows, along with running up of Sewing machines, can produce the grinding powder, and produce resistance to sliding (frictional resistance) and heating because of the wearing and tearing of sliding position, because of the former of this heating thereby produce the scorification damage at sliding position.
Therefore, in order to prevent producing the grinding powder and burning molten damage because of wearing and tearing at sliding position, on chain sitch sewing machine in the past, bottom at sewing machine frame is provided with food tray, storing kinematic viscosity for example with this is low-viscosity oil about 5～35cSt, and the lubricating oil that uses the oil pump by the drive force of machine spindle to store to the sliding position coercively fed, perhaps be immersed in lubricating oil on the wick and to the sliding position fuel feeding, on sliding surface, form to prevent because of wearing and tearing and produce the grinding powder and burn the lubricating oil film of molten damage.
But, on above-mentioned chain sitch sewing machine in the past, the quantity delivered that is used to form the necessary lubricating oil of lubricating oil film is different because of sliding position, as can not correctly controlling lubricating oil quantity delivered to each position, and increase lubricating oil quantity delivered, then can occur from particularly carry out straight-line shank portion, go up rotating shuttle portion, main work feed jack back and pay the leakage that the work feed portion of work feed jack back etc. produces lubricating oil, pollute the thing of making of cloth etc., and the problem that operator's working environment is worsened.
On the other hand, then can produce and burn molten damage if reduce the quantity delivered of lubricating oil, it is very difficult making the durability of the leakage that prevents lubricating oil and Sewing machines satisfactory to both parties.
In view of this point, the object of the present invention is to provide a kind ofly both can prevent to pollute the oil leak of making thing the satisfactory to both parties Sewing machines of durability with Sewing machines is arranged.
Summary of the invention
For achieving the above object; the present invention's 1 described invention; be that the driving force of machine spindle is passed to the eedle driving shaft; the work feed driving shaft; last rotating shuttle driving shaft; form the chain sitch sewing machine of dual chain-type stitch or overedge-stitch; it is characterized in that: on sewing machine frame, be provided with: take in and be configured in the distolateral of above-mentioned eedle driving shaft; driving force from the output of above-mentioned eedle driving shaft changed into reciprocating motion and pass to the eedle mechanism incorporating section of the eedle mechanism of shank; be configured in the distolateral of above-mentioned work feed driving shaft with taking in; driving force from above-mentioned work feed driving shaft output is changed into the cloth feeding mechanism incorporating section that regulation is moved and passed to feed dog; be configured in above-mentioned the distolateral of rotating shuttle driving shaft that go up with taking in; changing swing movement into from the above-mentioned driving force that goes up the output of rotating shuttle driving shaft and pass to the last rotary shuttle mechanism incorporating section of rotary shuttle mechanism, and make the grease transferring elements that is soaked with grease and be arranged at above-mentioned eedle mechanism incorporating section; the motion of mechanism position contact of the inside of at least one incorporating section in the middle of above-mentioned cloth feeding mechanism incorporating section and the above-mentioned upward rotary shuttle mechanism incorporating section is also carried out grease lubrication.
The present invention's 2 described inventions, it is 1 described chain sitch sewing machine according to the present invention, it is characterized in that: on sewing machine frame, be provided with to take at least the driving force of machine spindle is passed to the eedle driving shaft, the work feed driving shaft, the bindiny mechanism incorporating section of the bindiny mechanism of last rotating shuttle driving shaft, and the incorporating section sealing of above-mentioned bindiny mechanism, carry out oil lubrication with lubricating oil to being arranged at its inner bindiny mechanism, and make the grease transferring elements that is soaked with grease and be arranged at above-mentioned eedle mechanism incorporating section, above-mentioned cloth feeding mechanism incorporating section and above-mentionedly go up the motion of mechanism position contact of inside, rotary shuttle mechanism incorporating section and carry out grease lubrication.
The present invention's 3 described inventions, be 1 or 2 described chain sitch sewing machines according to the present invention, it is characterized in that: in above-mentioned each incorporating section, be provided with the grease reservoir of having filled grease, and above-mentioned grease transferring elements, be configured to a distolateral and above-mentioned motive position and contact, the other end is submerged in the grease of above-mentioned grease reservoir simultaneously.
The present invention's 4 described inventions, be 1 or 2 described chain sitch sewing machines according to the present invention, it is characterized in that: the above-mentioned eedle mechanism incorporating section of carrying out grease lubrication with the grease transferring elements that has soaked into grease, dispose above-mentioned grease transferring elements along the vertical direction, and its upper end side contacts with the needle road axis cover, and disposes the grease hole in its lower end side.
The present invention's 5 described inventions, be 1 or 2 described chain sitch sewing machines according to the present invention, it is characterized in that: the above-mentioned rotary shuttle mechanism incorporating section of going up of carrying out grease lubrication with the grease transferring elements that has soaked into grease, along the incorporating section periphery or dispose above-mentioned grease transferring elements up and down, and its upper end side contacts with last rotating shuttle abut, and disposes the grease hole in its lower end side.
The present invention's 6 described inventions are 5 described chain sitch sewing machines according to the present invention, it is characterized in that: when the rotating shuttle abut descended on above-mentioned, last rotating shuttle abut contacted with above-mentioned grease hole with the sliding part of last rotating shuttle pin.
The present invention's 7 described inventions are 5 described chain sitch sewing machines according to the present invention, it is characterized in that: being trapped among above-mentioned grease transferring elements rotating shuttle guide pin bushing configuration up of going up the scarf shape of rotating shuttle abut.
The present invention's 8 described inventions, be 7 described chain sitch sewing machines according to the present invention, it is characterized in that: dispose the grease hole on above-mentioned on rotating shuttle guide pin bushing or the above-mentioned sewing machine frame, and can supply with grease to the grease transferring elements of above-mentioned scarf shape from this grease hole.
The present invention's 9 described inventions, be 1 or 2 described chain sitch sewing machines according to the present invention, it is characterized in that: the above-mentioned cloth feeding mechanism incorporating section of carrying out grease lubrication with the grease transferring elements that has soaked into grease, its above-mentioned grease transferring elements is to be contacted and another distolateral the 2nd grease transferring elements that contacts with motive position constitutes by distolateral with one and above-mentioned the 1st grease transferring elements of the 1st grease transferring elements of having stored grease.
Description of drawings
Fig. 1 is the stereoscopic figure at the main position of Sewing machines of present embodiment.
Fig. 2 is the sewing machine frame of present embodiment and near the exploded perspective view at main position thereof.
Fig. 3 is a left side view of simplifying the sewing machine frame of present embodiment.
Fig. 4 be Fig. 3 along X-X line cutaway view.
Fig. 5 be Fig. 3 along Y-Y line cutaway view.
Fig. 6 is the upward view of Fig. 3.
Fig. 7 is the machine spindle of present embodiment Sewing machines and near the upward view the work feed driving shaft.
Fig. 8 is the front view of the machine spindle structure of present embodiment Sewing machines.
Fig. 9 is the front view of present embodiment Sewing machines.
Figure 10 is the vertical view of the cloth feeding mechanism incorporating section structure of present embodiment Sewing machines.
Figure 11 is that the A of Figure 10 is to view.
Figure 12 is that the B of Figure 10 is to view.
Figure 13 is the front view of the last rotary shuttle mechanism incorporating section structure of present embodiment Sewing machines.
Figure 14 is that the C of Figure 13 is to view.
Figure 15 is the left side view of the eedle mechanism incorporating section structure of present embodiment Sewing machines.
Among the figure: 2-sewing machine frame, 16-bindiny mechanism incorporating section, 17-cloth feeding mechanism incorporating section, 18-eedle mechanism incorporating section, the last rotary shuttle mechanism of 21-incorporating section, 31-machine spindle, the last rotating shuttle driving shaft of 46-, 48-cutter driving axle, 50-eedle driving shaft, 59,69,82-grease hole, 61-work feed driving shaft, 65,70,70a, 70b, 83,83 '-nonwoven fabric, the last rotating shuttle arm of 76-, the last rotating shuttle abut of 77-pin, the last rotating shuttle abut of 78-, the last rotating shuttle abut of 79-guide pin bushing, 130A-shank Upper shaft sleeve.
The specific embodiment
Below, with reference to the description of drawings embodiments of the invention.
As shown in Figure 1, as the overseam Sewing machines (overlock sewing machine) 1 of the chain sitch sewing machine of present embodiment, the food tray 3 of opening above the bottom of sewing machine frame 2 is provided with.In the internal storage of this food tray 3 be used for sliding position carried out low-viscosity oil oil lubrication, about for example kinematic viscosity 5～35cSt.And be expressed as respectively on figure: FS is that face side, the RS of operator position is that to be positioned at rear side, TS with face side FS opposition side be that front, BS from the left side that face side FS sees is the base end side from the right side that face side FS sees.And this overseam Sewing machines 1 can carry out dual chain-type stitch or over casting at least.
The structure of sewing machine frame 2 is described with reference to Fig. 2～Fig. 6.
On on base portion 2A, be provided with frame loam cake 4 as shown in Figure 1, so that cover the upper opening of base portion 2A.And, bear at Bu Tai and be provided with cloth on the left part of the 2B of portion and bear platform cover 22, and bear above the 2B of portion at the cloth platform that this cloth bears platform cover 22 and sewing machine frame 2, be provided with the cloth loading plate 24 that carrying cloth when making action etc. is made thing.
The cloth platform bears the inner space 2Ba of the 2B of portion, is divided into by dividing plate 13 that the 1st cloth platform that is communicated with the base portion inner space 2Aa of above-mentioned base portion 2A bears the inner space 2Baa of portion and the 2nd cloth platform bears the inner space 2Bab of portion.The 2nd cloth platform bears the inner space 2Baa of portion, is separated by the inner space of dividing plate 14 with food tray 3.Bear the inner space 2Baa of portion with these base portion inner space 2Aa and the 1st cloth platform, constitute the bindiny mechanism incorporating section 16 of present embodiment, and bear the inner space 2Bab of portion, constitute the cloth feeding mechanism incorporating section 17 of present embodiment with the 2nd cloth platform.
On the top of the left surface of midfeather 2MW, distolateral forward TS is formed extended at both sides and is useful on the head that forms head 2C with frame shape wall 2CW, and is made of the eedle mechanism incorporating section 18 of present embodiment the head inner space 2Ca that surrounds with frame shape wall 2CW with this head.And, on head 2C, be provided with head lid 19 shown in Figure 1, so that cover the peristome of head with frame shape wall 2CW with it.
In the bottom of the left and right directions substantial middle part of the outside of face wall 2FW, be formed with the last rotating shuttle that roughly is the frame shape that extends to face side FS with protruding wall 2FPW, rotating shuttle is with the peristome of protrusion wall 2FPW, by the right side branch covering of rotating shuttle cover plate 20a this on.Then, the space that surrounds with protrusion wall 2FPW with above rotating shuttle constitutes the last rotary shuttle mechanism incorporating section 21 of present embodiment.And, disposed rotating shuttle lid 20b in the front side of rotating shuttle cover plate 20a, formation is the direction structure that moves and open and close to the left and right.
In addition, the double-stranded mechanism of rotating shuttle incorporating section 23 under the left side of last rotary shuttle mechanism incorporating section 21 forms.
Below, according to the structure in the bindiny mechanism incorporating section 16 of the overseam Sewing machines 1 of Fig. 5,8,9 explanation present embodiments.Face side FS in the bottom of the sewing machine frame 2 of present embodiment overseam Sewing machines 1 is provided with the machine spindle 31 that along continuous straight runs extends.This machine spindle 31 can be bearing on the bearing for spindle 33A～33D that remains on the sewing machine frame 2 flexibly rotatably.And, in the present embodiment as the 1st bearing for spindle 33A, the 2nd bearing for spindle 33B and the 4th bearing for spindle 33D, use be rolling bearing, be axle sleeve (sliding bearing) and the 3rd bearing for spindle 33C uses.This axle sleeve usually is called as the C axle sleeve.
At the 2nd bearing installation portion 36B of the 2nd bearing for spindle 33B that machine spindle 31 is housed and be equipped with between the 3rd bearing installation portion 36C of the 3rd bearing for spindle 33C, it is the bent axle that has disposed 4 drum type crank-pin 37A～37D, by order from base end side BS, respectively rotating shuttle driving connecting rod 41 is being installed on the crank-pin 37A, cutter driving connecting rod 42 is installed on crank-pin 37B, eedle is installed on crank-pin 37C drives with connecting rod 43, being installed with down on crank-pin 37D, rotating shuttle drives each base end part of using connecting rod 44.Then, on last rotating shuttle drives with connecting rod 41 leading sections, connecting the other end of the last rotating shuttle driving usefulness connecting rod 47 that an end is connected with last rotating shuttle driving shaft 46 (shown in Figure 13).In addition, with on connecting rod 42 leading sections, connecting the other end of the cutter driving usefulness connecting rod 49 that an end is connected with cutter driving axle 48 in cutter driving.And, on eedle drives with connecting rod 43 leading sections, connecting the other end of the eedle driving usefulness connecting rod 51 that an end is connected with eedle driving shaft 50.And, on down rotating shuttle drives with connecting rod 44 leading sections, connecting the other end that connecting rod 53 is used in eedle driving that an end is connected with following rotating shuttle driving shaft 52 (being installed on the supporting hole 132B of Fig. 4).
At the 1st bearing installation portion 36A of the 1st bearing for spindle 33A that machine spindle 31 has been installed and installed between the 2nd bearing installation portion 36B of the 2nd bearing for spindle 33B, be provided with and have work feed and drive feed eccentric mechanism 60 with connecting rod 73.Work feed drives the leading section with connecting rod 73, can be supported in rotationally flexibly on the two fork cranks 75 that are fixed on the work feed driving shaft 61.This feed eccentric mechanism 60 connects machine spindle 31 and work feed driving shaft 61, and is used to regulate the drive amount with respect to the work feed driving shaft 61 of machine spindle 31.
On machine spindle 31, fixing worm screw 85.Closing worm gear 86 at worm screw 85 Shang Nogami.This worm gear 86 is fixed on the upper end of the oil pump driving shaft 87 in the oil pump 80 of being located at base portion 2A inside, and drives oil pump 80 and the lubricating oil that is stored in food tray 3 lowers is picked up by supply port 80a.The lubricating oil that picks up with this oil pump 80, by the fuel feed pump 81 that is connected with oil drain out 80b to the oil supplying hole 33Ca fuel feeding that is formed on the 3rd bearing for spindle 33C.
Between the right part and the 3rd bearing for spindle 33C of the inside of machine spindle 31, form can current lubrication oil lubricating oil supply with oil circuit 88.This lubricating oil is supplied with oil circuit 88, be formed for the lubricating oil oil-feed port 88a that lubricating oil is supplied with at the central portion of the 3rd bearing installation portion 36C, and amount to 5 places at the middle body of the configuration portion of 4 crank-pin 37A～37D and feed eccentric mechanism 60 and set the lubricating oil oil drain out 88b that is used for to the sliding position supplying lubricating oil.
Lubricating oil from oil pump 80 is supplied with to the oil supplying hole 33Ca of the 3rd bearing for spindle 33C is fed into lubricating oil by lubricating oil oil-feed port 88a and supplies with in the oil circuit 88.Lubricating oil in the lubricating oil supply oil circuit 88 is shown in arrow O, discharged from each lubricating oil oil drain out 88b, and can be to each sliding position, detailed is to carry out oil lubrication with connecting rod 42, eedle driving with the sliding position that connecting rod 43, following rotating shuttle drive with connecting rod 44 and feed eccentric mechanism 60 with connecting rod 41, cutter driving with respect to the last rotating shuttle driving of machine spindle 31.
Like this, on the overseam Sewing machines 1 of present embodiment, the driving force of taking in handlebar machine spindle 31 in the inside of the bindiny mechanism incorporating section 16 of sewing machine frame 2 pass to rotating shuttle driving shaft 46, cutter driving axle 48, eedle driving shaft 50, work feed driving shaft 61 and on the bindiny mechanism of rotating shuttle driving shaft 46, detailed is that last rotating shuttle driving drives with connecting rod 43, following rotating shuttle with connecting rod 42, eedle with connecting rod 41, cutter driving and drives with connecting rod 44 and feed eccentric mechanism 60.
Below, with reference to the structure in Fig. 7,10, the 12 explanation cloth feeding mechanism incorporating sections 17.
Machine spindle 31 serves as the position and the position that is configured in cloth feeding mechanism incorporating section 17 that boundary is divided into the bindiny mechanism incorporating section 16 that is configured in sewing machine frame 2 with the 3rd bearing for spindle 33C.On the position that is configured in cloth feeding mechanism incorporating section 17, double-stranded cam 91 and work feed slide block 95 up and down is installed.On double-stranded cam 91, connecting double-stranded the driving with connecting rod 94 by needle bearing 92.And, is connecting main work feed rocking bar 98 and paying work feed rocking bar 99 on the slide block 95 up and down at work feed, and machine spindle 31 is once rotating then main work feed rocking bar 98 and paying work feed rocking bar 99 and shake.
Work feed driving shaft 61, supported with bearing 102C with bearing 102B, the 3rd cloth pushing shaft with bearing 102A, the 2nd cloth pushing shaft by the 1st cloth pushing shaft that can be installed in rotationally flexibly on the sewing machine frame 2, and be that the boundary is divided into the position of the bindiny mechanism incorporating section 16 that is disposed on the sewing machine frame 2 and is disposed at the position of cloth feeding mechanism incorporating section 17 with bearing 102B with the 2nd cloth pushing shaft.
On work feed driving shaft 61, connecting main work feed arm (not having diagram) that constitutes a cloth feeding mechanism part and the base end part of paying work feed arm 107.On the front end of main work feed arm,, connecting an end of main work feed connecting rod 108 by main work feed arm pin 111.The other end of this main work feed connecting rod 108 is connected with main work feed rocking bar 98 by pin 106.
Pay the leading section of work feed arm 107, be connected with a pair work feed rocking bar 99 by paying work feed pin slide block 109.According to such structure,, main work feed rocking bar 98 and pair work feed rocking bar 99 shake Yi Bian sliding on one side mutually.
In addition, work feed driving shaft 61 with each main work feed arm and pay between the position that the base end part of work feed arm 107 is connected, connecting the no illustrated two strands front and back arm that an end is connected with the double-stranded leading section that drives with connecting rod 94.Main work feed rocking bar 98, front and the rocking bar support piece 112 of paying work feed rocking bar 99 are chimeric and be supported.
In this cloth feeding mechanism incorporating section 17, with at a high speed carry out sliding motion be main work feed rocking bar 98 with pay a work feed rocking bar 99, work feed up and down slide block 95 and main work feed rocking bar 98 and pay work feed rocking bar 99, machine spindle 31 and work feed up and down slide block 95, main work feed connecting rod 108 and main work feed arm pin 111, main work feed connecting rod 108 with pin 106, pay work feed pin slide block 109 and pay a work feed arm 107, main work feed rocking bar 98 and pay work feed rocking bar 99 and support slide block 112 with rocking bar.
On main work feed connecting rod 108, be provided with the aperture 108a that communicates with the sliding part of main work feed arm pin 111 and with main work feed rocking bar 98 and sell the aperture 108b that 106 sliding part communicates.
In the present embodiment, be provided with grease hole 69 below in cloth feeding mechanism incorporating section 17, and, being provided with the nonwoven fabric 70 that lower end side and this grease are cheated the 69 grease transferring elements that join, for example felt etc., the felt pressing plate that makes with no illustrated sheet metal is supported in it on sewing machine frame.This nonwoven fabric 70, be by the nonwoven fabric 70a that has fully stored grease, and an end contact with above-mentioned nonwoven fabric 70a and the other end is cheated the 69 nonwoven fabric 70b that contact with above-mentioned grease and constituted.In addition, this nonwoven fabric 70a, 70b can be independently nonwoven fabric of difference, also can be the whole piece nonwoven fabric.
The upper end side of nonwoven fabric 70b, be set at and be positioned at main work feed rocking bar 98 and two aperture 108a that pay work feed rocking bar 99, main work feed connecting rod 108,108b, pay work feed pin slide block 109 with the sliding part of paying work feed arm 107, main work feed rocking bar 98 with pay work feed rocking bar 99 and support each sliding part of slide block 112 and the top of needle bearing 92 with rocking bar, and when each mechanism element rises because of swing when Sewing machines turns round and on each sliding position position contacting.Therefore, can directly supply with grease, or pass through the aperture 108a of main work feed connecting rod 108,108b fuel feeding to these each sliding positions (motive position).In addition, also can provide grease from nonwoven fabric 70b to the sliding part between slide block 95 about the work feed and main work feed rocking bar 98 and pair work feed rocking bar 99.
This nonwoven fabric 70 is configured in later in the cloth feeding mechanism incorporating section 17 being soaked into grease in advance.Thereby,, also can inhale upper end to grease from grease hole 69 because of capillary tube to nonwoven fabric 70 even supply with oil content grease to each sliding part continuously from the upper end of nonwoven fabric 70.Therefore, the sliding position in cloth feeding mechanism incorporating section 17 (motive position) is supplied with grease reliably, and prevents scaling loss.
Below, go up the structure in the rotary shuttle mechanism incorporating section 21 with reference to Fig. 6,13,14 explanations.
Last rotating shuttle driving shaft 46 shown in Figure 13 can be maintained at rotationally flexibly to be disposed at respectively along the direction vertical with the length direction of machine spindle 31 is coaxial and run through on the sewing machine frame 2 formed bearings of going up on rotary shuttle shaft support holes 121A, the 121B (not having diagram).Be positioned at the leading section of the face side FS of rotating shuttle driving shaft 46 on this, protrude from the last rotary shuttle mechanism incorporating section 21 that is formed on the face wall 2FW outside.
In last rotary shuttle mechanism incorporating section 21, at an end of fixing rotating shuttle arm 76 on the leading section of last rotating shuttle driving shaft 46.The other end of last rotating shuttle arm 76 is connected with last rotating shuttle abut 78 by last rotating shuttle abut pin 77.On last rotating shuttle abut 78, be provided with the aperture 78a that leads to the sliding part of last rotating shuttle abut pin 77.Last rotating shuttle abut 78, its front end are supporting not have illustrated upward rotating shuttle, and can be supported by last rotating shuttle abut guide pin bushing 79 slidably flexibly.Last rotating shuttle abut guide pin bushing 79 is subjected to the supporting of rotating shuttle abut guide pin bushing support 72, can the illustrated direction of arrow of mind-set rotate neatly in this.
In last rotary shuttle mechanism incorporating section 21, be to go up rotating shuttle abut 78 and last rotating shuttle abut guide pin bushing 79, go up rotating shuttle abut guide pin bushing 79 and last rotating shuttle abut guide pin bushing support 72 and go up rotating shuttle abut pin 77 and last rotating shuttle abut 78 with what carry out sliding motion at a high speed.
In the present embodiment, in last rotary shuttle mechanism incorporating section 21 below be provided with grease hole 82.This grease hole 82 utilizes the slot part 89 on the sewing machine frame 2 that is formed at below in the rotary shuttle mechanism incorporating section 21, increases the storage capacity of grease.In addition, the felt pressing plate 84 of lower end side and grease hole 82 nonwoven fabric that join (for example felt), 83 usefulness along the periphery configuration of last rotary shuttle mechanism incorporating section 21 is supported on the sewing machine frame 2.
This nonwoven fabric 83 is soaked into grease in advance and is configured in later in the rotary shuttle mechanism incorporating section 21, and its upper end is near near the lower end of last rotating shuttle abut 78.Thereby,, supply with the oil content of grease by make progress sliding part between rotating shuttle abut 78 and the last rotating shuttle abut guide pin bushing 79 of capillarity along with moving up and down of last rotating shuttle abut 78.And so upwards the part of supply oil content between rotating shuttle abut 78 and the last rotating shuttle abut guide pin bushing 79 also immerses the sliding part of going up between rotating shuttle abut guide pin bushing 79 and the last rotating shuttle abut guide pin bushing support 72.
And, when last rotating shuttle driving shaft 46 rotates, the connecting portion of last rotating shuttle arm 76 and last rotating shuttle abut 78 just carries out the swing movement along the direction of arrow, and when mobile downwards, be immersed in the grease hole 82 sliding position (motive position) the supply grease between rotating shuttle abut pin 77 and the last rotating shuttle abut 78 that makes progress of the aperture 78a by last rotating shuttle abut 78.In addition, rotating shuttle abut 78, aperture 78a supply with grease on also passing through from the upper end of nonwoven fabric 83 on this sliding position.
On last rotating shuttle abut guide pin bushing 79, dispose the felt 140 that is enclosed in the scarf shape around the rotating shuttle abut 78 and be formed with 4 apertures 141 at fore-and-aft direction (left and right directions of Figure 14).And, on last rotating shuttle abut guide pin bushing support 72, form the hole 142 of (left and right directions of Figure 13) to left and right direction.On this hole 142, be provided with lid 143.And, on sewing machine frame 2, form the slot part 144 that is communicated with aperture 141.This aperture 141, hole 142 and slot part 144 are stored grease respectively and are cheated as grease.Owing on felt 140, soaked into grease in advance, so along with the slip of last rotating shuttle abut 78, because of the make progress oil content of the sliding part supply grease between rotating shuttle abut 78 and the last rotating shuttle abut guide pin bushing 79 of capillarity.Even and the grease that soaks in advance has been consumed also and can have replenished grease in the aperture 141 because of capillarity, and the greases in the slot part 144 also can be fed on the felt 140 by aperture 141, so can supply with grease chronically.
Like this, can supply with grease by each sliding position in cloth feeding mechanism incorporating section 17, and prevent scaling loss.In addition and since felt 140 be enclosed in rotating shuttle abut 78 around, so can prevent from the foreign matter of the dust of top etc. through the gap of last rotating shuttle abut 78 and last rotating shuttle abut guide pin bushing 79 and invade in the rotary shuttle mechanism incorporating section 21.
In addition, also can contact the bottom of the nonwoven fabric 83 ' shown in the hypothesis line of figure with grease hole 82, and its upper end and desirable bottom configuration along the vertical direction in contact of going up rotating shuttle abut 78, thereby replace the periphery configuration of nonwoven fabric 83 along last rotary shuttle mechanism incorporating section 21.
Below, the structure of eedle mechanism incorporating section 18 is described with reference to Fig. 4 and Figure 15.
Eedle driving shaft 50 can be supported on base portion 2A on the bearing (not shown) in hole 127A, the 127B that is configured in sewing machine frame 2 flexibly rotatably.The leading section of this eedle driving shaft 50 protrudes from the eedle mechanism incorporating section 18 of sewing machine frame 2, and is fixing an end of eedle actuating arm 55.The other end of eedle actuating arm 55 is connected with eedle drive link 57 by the 1st eedle drive link pin 56, and eedle drive link 57 is connected with shank 129 by the 2nd eedle drive link pin 58.Shank 129, but reciprocating motion be set at the pair of bearings up and down on the head 2C of sewing machine frame 2 shank Upper shaft sleeve 130A and shank Lower shaft sleeve 130B support.According to this eedle mechanism, the eedle 57 (Fig. 1) that is installed on shank 129 lower ends moves up and down.
In this eedle mechanism incorporating section 18, be shank 129 and Upper shaft sleeve 130A and shank Lower shaft sleeve 130B, eedle drive link 57 and the 1st and the 2nd eedle drive link pin 56,58 with what carry out sliding motion at a high speed.
Be provided with grease hole 59 below in eedle mechanism incorporating section 18, and be supported on the sewing machine frame 2 along the vertical direction with disposing with the nonwoven fabric (for example felt) 65 in end in contact grease hole 59 under felt pressing plate 66 handles.This nonwoven fabric 65 is soaked into grease in advance and is configured in later in the eedle mechanism incorporating section 18, and the upper end contacts with the shank 129 of the sliding position of close shank Upper shaft sleeve 130A.And, on eedle drive link 57, be provided with towards aperture 57a, the 57b of the sliding part of the 1st and the 2nd eedle drive link pin 56,58.
Therefore, in the time of with the moving up and down of shank 129, supply with grease to shank 129 and the sliding position of shank Upper shaft sleeve 130A, and grease is passed to shank 129 and to supplying with the sliding position of shank Lower shaft sleeve 130B from nonwoven fabric 65.In addition, when the front end of the eedle actuating arm 55 of swing rises, collide and grease is splashed towards periphery with nonwoven fabric 65.Aperture 57a, the 57b of this grease that splashes by eedle drive link 57 is fed into the sliding position between eedle drive link 57 and the 1st and the 2nd eedle drive link pin 56,58.Like this, owing to can supply with grease to each sliding position in the eedle mechanism incorporating section 18 (each motive position), so can prevent scaling loss.
In addition, in Fig. 4,6,132A, 132B pack into to support down the support holes of the bearing of rotating shuttle driving shaft flexibly rotatably, and form through sewing machine frame 2 along the direction vertical with machine spindle 31 length directions is coaxial.In addition, 135A, 135B are the support holes of the bearing that can support double-stranded driving shaft (do not have diagram) flexibly rotatably of packing into, and form through sewing machine frame 2 along the direction vertical with machine spindle 31 length directions is coaxial.
The bindiny mechanism incorporating section 16 of sewing machine frame 2 with and the eedle mechanism incorporating section 18 of these bindiny mechanism incorporating section 16 adjacency, cloth feeding mechanism incorporating section 17, on the boundary section of rotary shuttle mechanism incorporating section 21 and the double-stranded mechanism of following rotating shuttle incorporating section 23, be provided with the no illustrated leakage that prevents oil leak and prevent locking mechanism.
Promptly, on the hole 127B (the bearing configuration hole of eedle driving shaft 50) of the bindiny mechanism incorporating section of being located at sewing machine frame 2 on Fig. 4～7 16 and the boundary section of eedle mechanism incorporating section 18, be provided with the anti-locking mechanism of leakage that prevents that lubricating oil from leaking to eedle mechanism incorporating section 18.And, respectively be located at bindiny mechanism incorporating section 16 the 3rd bearing for spindle 33C, the 2nd cloth pushing shaft with the boundary section of cloth feeding mechanism incorporating section 17 with support holes 32C, the 101B of the portion that is provided with of bearing 102B and be located at rotating shuttle driving shaft down and support holes 132B, the 135B of double-stranded driving shaft configuration portion on, be provided with and prevent that the leakage that lubricating oil leaks to cloth feeding mechanism incorporating section 17 from preventing locking mechanism.
And, be located on bindiny mechanism incorporating section 16 and last rotary shuttle mechanism incorporating section 21 boundary section on the rotary shuttle shaft support holes 121A, be provided with the anti-locking mechanism of leakage that prevents lubricating oil to make progress rotary shuttle mechanism incorporating section 21 leaks.
In addition, on main shaft supporting hole 32A, the cloth pushing shaft support holes 101A etc. of the boundary section of being located at bindiny mechanism incorporating section 16 and Sewing machines outside, also be provided with and prevent that lubricating oil is to the anti-locking mechanism of the leakage of Sewing machines external leaks.
As leaking anti-locking mechanism, can select the sealing device of O type circle, oil sealing, filler, gasket seal etc., or encapsulant, attachment material, adhesives etc. prevent the excircle sealing mechanism that leaks from the excircle part of bearing, or when the sintering metal that uses as bearing, implement sealing of hole and handle, or use the structure of the sintering metal that is not used as bearing or use the bearing etc. of band sealing to prevent to leak the bearing sealing device of lubricating oil from bearing itself.
By the anti-locking mechanism of such leakage is set, the taping machine 1 of present embodiment can seal the bindiny mechanism incorporating section 16 of this sewing machine frame 2, and with lubricating oil the sliding position (motive position) that is configured in its inner bindiny mechanism be carried out oil lubrication.
And, can both implement owing to repeatedly kick into the Sewing machines of capable double-chain stitch or overedge-stitch at least, so also can be implemented on double rib Sewing machines (safety stitch sewing machine).
But be not subjected to the limitation of the embodiment of the invention, can do various changes.
For example, as the transferring elements of grease, be example with the felt of nonwoven fabric, as long as but the parts that can soak into grease and oil is moved upward because of capillary tube from the below, also can use felt nonwoven fabric in addition, or the material (for example parts that staple is made into) beyond the nonwoven fabric.More particularly, the wick that can partly constitute with the wick that for example only constitutes, the wick that only constitutes, by nonwoven fabric part and cotton yarn by cotton yarn by nonwoven fabric.
In addition, enumerated cloth feeding mechanism incorporating section 17, eedle mechanism incorporating section 18, gone up the example that each sliding part in the rotary shuttle mechanism incorporating section 21 carry out grease lubrication, but also can be only to any one or two incorporating sections in these each incorporating sections 17,18,21 as grease lubrication.
In addition, bindiny mechanism incorporating section 16, be that the lubricating oil in the food tray 3 is supplied with by the lubricating oil feed path 88 of oil pump 80 in machine spindle 31, and prevent the example of sliding position scaling loss with lubricating oil, but can replace, in food tray 3, store grease, and the lubricating oil feed path 88 of this grease in machine spindle 31 supplied with, prevent the sliding position scaling loss with grease by oil pump.At this moment, because can be to all mechanism's grease lubrications that need in the overseam Sewing machines 1 to lubricate, so can almost completely prevent the pollution of cloth, and can improve operating personnel's working environment significantly.
(invention effect)
1 described sewing machine according to the present invention is because the grease transferring elements that soaks into grease Be arranged in machine pin mechanism incorporating section, cloth feed machine structure incorporating section and the upper rotary shuttle mechanism incorporating section At least one incorporating section inside mechanism motion position contact and to carry out grease lubricated, institute With from not having leakage of oil as the lubricated incorporating section of grease, and can prevent because of making that this leakage of oil causes The greasy dirt of thing also can improve working environment.
2 described sewing machines according to the present invention are taken in the junctor that connects mechanism owing to be provided with The structure incorporating section, and the incorporating section sealing of above-mentioned connection mechanism and with lubricating oil to being contained in the inner The connection mechanism of section carry out glossy cunning, to be disposed at machine pin mechanism incorporating section, the cloth feed machine structure is taken in It is lubricated that grease is carried out at the motion position of the mechanism of section and upper inside, rotary shuttle mechanism incorporating section, so Can prevent reliably by the sliding position that scaling loss takes place easily being arranged at connection mechanism incorporating section End scaling loss, and can prevent the greasy dirt of making thing that causes because of leakage of oil and realize working environment Improvement.
3 described sewing machines according to the present invention are because the grease transferring elements is configured to it One distolaterally contacts with the motion position, and the other end is immersed in the grease of grease storage section, so After the grease of impregnation in the grease transferring elements partly is consumed can from grease storage section to Oil content is transmitted at the motion position. Therefore, can keep chronically lubricated ability.
4 described sewing machines according to the present invention are because in machine pin mechanism incorporating section, along upper Lower direction configuration grease transferring elements, and distolateral and needle road axis overlap and contact and at its lower end it on Side disposes grease hole, so can be chronically continuous to the motion position in the machine pin mechanism incorporating section Supply with grease.
5 described sewing machines according to the present invention, because in upper rotary shuttle mechanism incorporating section, the edge Incorporating section periphery or dispose up and down the grease transferring elements, and on it distolateral and on revolve the shuttle abut and connect Touch, and in its lower distolateral grease hole that disposes, so the fortune in the rotary shuttle mechanism incorporating section that can make progress Grease is given at moving position chronically continuous supplying.
6 described sewing machines according to the present invention because when revolving the shuttle abut and descend, on revolve The shuttle abut contacts with above-mentioned grease hole with the sliding part that revolves the shuttle pin, so can be long to this position of moving Phase ground continuous supplying is given grease.
7 described sewing machines according to the present invention are because being trapped among the scarf shape that revolves the shuttle abut The grease transferring elements upwards revolve shuttle guide pin bushing configuration, so can upwards revolve the shuttle abut and on revolve shuttle and lead Motion section between the cover supplies with grease, and the foreign matter that can prevent dust etc. through on revolve the shuttle abut with On revolve the shuttle guide pin bushing the gap invade rotary shuttle mechanism and received in the section.
8 described sewing machines according to the present invention are owing to revolving shuttle guide pin bushing or sewing machine frame Upper configuration grease hole, and can supply oil supply by the grease transferring elements from this grease hole to above-mentioned scarf shape Fat, thus can upwards revolve the shuttle abut and on revolve between the shuttle guide pin bushing motion section chronically continuous supplying give Grease.
9 described sewing machines according to the present invention are because in cloth feed machine structure incorporating section, on it Stating the grease transferring elements, is by the 1st grease transferring elements of having stored grease, distolateral with the The contact of 1 grease transferring elements, and another distolateral the 2nd grease transfer part that contacts with the motion position Part consists of, thus can to the motion section of cloth feed machine structure incorporating section chronically continuous supplying give grease.
Claims (9)
1. chain sitch sewing machine; be that the driving force of machine spindle is passed to eedle driving shaft, work feed driving shaft, goes up the rotating shuttle driving shaft; and form the chain sitch sewing machine of dual chain-type stitch or overedge-stitch, it is characterized in that: on sewing machine frame, be provided with
Take in be configured in described eedle driving shaft one distolateral, the driving force from described eedle driving shaft output changed into reciprocating motion and pass to the eedle mechanism of shank eedle mechanism incorporating section,
Take in be configured in described work feed driving shaft one distolateral, the driving force from described work feed driving shaft output changed into the regulation motion and pass to cloth feeding mechanism the cloth feeding mechanism incorporating section,
Take in be configured in described go up the rotating shuttle driving shaft one distolateral, going up the last rotary shuttle mechanism incorporating section that driving force that the rotating shuttle driving shaft exports changes swing movement into and passes to rotary shuttle mechanism from described,
And make the grease transferring elements that is soaked with grease and be arranged at described eedle mechanism incorporating section, described cloth feeding mechanism incorporating section and described motion of mechanism position of going up the inside of at least one incorporating section in the middle of the rotary shuttle mechanism incorporating section and contact and carry out grease lubrication.
2. chain sitch sewing machine according to claim 1 is characterized in that: be provided with on the sewing machine frame take at least the driving force of main shaft is passed to eedle driving shaft, work feed driving shaft, on the bindiny mechanism incorporating section of bindiny mechanism of rotating shuttle driving shaft,
The incorporating section sealing of described bindiny mechanism and with lubricating oil the motive position that is set at its inner bindiny mechanism is carried out oil lubrication,
Make the grease transferring elements that is soaked with grease and be arranged at described eedle mechanism incorporating section, described cloth feeding mechanism incorporating section and described motion of mechanism position of going up inside, rotary shuttle mechanism incorporating section and contact and carry out grease lubrication.
3. chain sitch sewing machine according to claim 1 and 2 is characterized in that: in described each incorporating section, be provided with the grease reservoir of having filled grease,
And described grease transferring elements is configured to that a distolateral and described motive position contacts, simultaneously the other end is submerged in the grease of described grease reservoir.
4. chain sitch sewing machine according to claim 1 and 2, it is characterized in that: the described eedle mechanism incorporating section of carrying out grease lubrication with the grease transferring elements that has soaked into grease, dispose described grease transferring elements along the vertical direction, and its upper end side contacts with the shank Upper shaft sleeve, dispose the grease hole in its lower end side.
5. chain sitch sewing machine according to claim 1 and 2, it is characterized in that: the described rotary shuttle mechanism incorporating section of going up of carrying out grease lubrication with the grease transferring elements that has soaked into grease, along the incorporating section periphery or dispose described grease transferring elements up and down, and its upper end side contacts with last rotating shuttle abut and dispose the grease hole in its lower end side.
6. chain sitch sewing machine according to claim 5 is characterized in that: when the rotating shuttle abut descended on described, last rotating shuttle abut contacted with described grease hole with the sliding part of rotating shuttle pin.
7. chain sitch sewing machine according to claim 5 is characterized in that: being trapped among the rotating shuttle guide pin bushing configuration that makes progress of the described grease transferring elements of going up the scarf shape of rotating shuttle abut.
8. chain sitch sewing machine according to claim 7 is characterized in that: configuration grease hole on rotating shuttle guide pin bushing or the described sewing machine frame on described, and can supply with grease to the grease transferring elements of described scarf shape from this grease hole.
9. chain sitch sewing machine according to claim 1 and 2, it is characterized in that: the described cloth feeding mechanism incorporating section of carrying out grease lubrication with the grease transferring elements that has soaked into grease, described grease transferring elements is to be contacted and another distolateral the 2nd grease transferring elements that contacts with motive position constitutes by distolateral with one and described the 1st grease transferring elements of the 1st grease transferring elements of having stored grease.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002049910A JP2003245487A (en) | 2002-02-26 | 2002-02-26 | Sewing machine |
| JP200249910 | 2002-02-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441107A true CN1441107A (en) | 2003-09-10 |
| CN100575589C CN100575589C (en) | 2009-12-30 |
Family
ID=27784570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03106458A Expired - Lifetime CN100575589C (en) | 2002-02-26 | 2003-02-26 | Chain sitch sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003245487A (en) |
| CN (1) | CN100575589C (en) |
| TW (1) | TWI261637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775242A (en) * | 2015-03-06 | 2015-07-15 | 星锐缝纫机(嘉兴)有限公司 | Crank arm type sewing machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144148A (en) * | 2005-11-07 | 2007-06-14 | Juki Corp | Sewing machine |
-
2002
- 2002-02-26 JP JP2002049910A patent/JP2003245487A/en active Pending
-
2003
- 2003-02-12 TW TW92102887A patent/TWI261637B/en not_active IP Right Cessation
- 2003-02-26 CN CN03106458A patent/CN100575589C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775242A (en) * | 2015-03-06 | 2015-07-15 | 星锐缝纫机(嘉兴)有限公司 | Crank arm type sewing machine |
| CN104775242B (en) * | 2015-03-06 | 2017-05-10 | 星锐缝纫机(嘉兴)有限公司 | Crank arm type sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200306372A (en) | 2003-11-16 |
| TWI261637B (en) | 2006-09-11 |
| CN100575589C (en) | 2009-12-30 |
| JP2003245487A (en) | 2003-09-02 |
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