CN2151992Y - Joint sewing machine - Google Patents

Abstract

The utility model relates to a joint sewing machine, which comprises a box, a bolster plate, a side edge drive box, a side edge supporting frame, an upper and a lower guide rails, a hand piece, a hand piece drive shaft, a barded needle box, a drive shaft of the bearded needle box, a needle pitch feeding box, an air-operating tensioning mechanism, an electrical apparatus control system, a wire frame and a mechanical feeding mechanism. The utility model has the advantages of small ground occupying, small vibration, low noise, high operational reliability and high yield, and is suitable for being connected to a gum dipping production line in series. The safety factor of the utility model is improved two times.

Description

Joint sewing machine

The utility model relates to a kind of joint Sewing machines, especially relates to a kind of various polyamide fibres, terylene, powerful viscose glue cord fabric and the joint Sewing machines of polyamide fibre apron cloth in the hot draft process of impregnation of being applicable to.

Cord fabric is the necessary aquatic product of Continuous Flow in the hot draft process of impregnation, do not allow any long pause, otherwise cord fabric will be melted by too high temperature.Yet the present domestic suitable Sewing machines that joint is used that sews up that do not have, have with import or homemade general industry multineedle sewing machine, what have uses general industry multineedle sewing machine transformation of the way back, but these Sewing machiness in use have operation inconvenience, poor reliability, joint quality is difficult to defectives such as assurance.Also have indivedual producers to use supporting joint Sewing machines in the impregnation production line of introducing, but need complete machine to move during this machine sewing, so the structure length of machine is more than 2 times of sewing width, this spline structure is huge, and vibration is big, noise sound; The motion of needle gage only has a sets of transmission mechanism transmission, and functional reliability is poor, and safety coefficient is little; Needle gage can not be regulated, and is difficult to adapt to the requirement of variety classes sewing; Owing to adopt double chainstitch, so when initial sewing and sewing finished, the both sides of the cloth width of cloth must serve as a contrast earlier draw cloth, cause and operate cumbersomely, waste line and cloth again.

The purpose of this utility model provides a kind of compact conformation, the joint Sewing machines easily of sewing.

Another purpose of the present utility model provides a kind of reliable operation, joint Sewing machines that safety coefficient is big.

In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of joint Sewing machines, it comprises a base, one working plate, one is fixed on the side support of described base one side, at least one upper rail, one head, one bearded needle case, one head transmission main shaft, one bearded needle case transmission main shaft, one has the electrical apparatus control system and a coil holder of main motor control assembly, and it comprises that also one is arranged on the side driving box of described base opposite side, at least one lower guideway that is positioned at described upper rail below, one is fixed on a needle gage feed box and the pneumatic strainer on the described base; The two ends of described upper rail and lower guideway are separately positioned on described side support and the side driving box, described working plate is fixedly installed on the described side support and side driving box of described lower guideway top, and described head and bearded needle case are slidably disposed on respectively on described upper rail and the lower guideway; Described side driving box comprises a last power transmission shaft by described main motor control assembly transmission, a lower drive shaft and a transmission device, the described power transmission shaft of going up links to each other with described lower drive shaft by described transmission device, the two ends of described head transmission main shaft and bearded needle case transmission main shaft link to each other with described side support with the described upper and lower power transmission shaft of power transmission shaft of going up respectively, and described head and bearded needle case slide over respectively on described head transmission main shaft and the bearded needle case transmission main shaft; Described needle gage feed box comprises a stepper motor by described electrical apparatus control system control, be meshed first, second bevel gear, one around wheel and three steel wire ropes, described first, second bevel gear be installed in respectively described stepper motor main shaft and described around the wheel rotating shaft on, the two ends of a described steel wire rope are connected to and describedly are connected a side of described crochet hook case around wheel with after walking around the pulley that is arranged on the described side driving box inboard, be connected a side of described head after the two ends of described another steel wire rope are connected to the opposite side of described crochet hook case and walk around the pulley that is arranged on described side support and the side driving box inboard, be connected described on wheel after the described two ends of a steel wire rope again are connected to the opposite side of described head and walk around the pulley that is arranged on the described side support inboard; Described strainer comprises that a cylinder, a tense wire rope and two are in the same plane and be positioned at the hook assembly at described working plate two ends with described working plate basically, a described hook assembly and described working plate are affixed, described another hook assembly can link to each other along the groove longitudinal sliding motion on the described working plate and with described tense wire rope, and the other end of described tense wire rope is connected on the described cylinder; Described electrical apparatus control system also comprises stepping motor control apparatus, described stepping motor control apparatus comprises a photoelectric tube, a blanking disc, a light source and a stepping motor control circuit, offer a circumferential groove on the described blanking disc and be installed on the end of described bearded needle case transmission main shaft of described side support one side, described photoelectric tube and light source branch are located on the both sides relative position of described blanking disc, and described stepping motor control circuit is electrically connected mutually with described stepper motor and photoelectric tube respectively.

Joint Sewing machines of the present utility model also comprises a mechanical feed mechanism, and described mechanical feed mechanism comprises that an operating grip assembly, is installed in needle gage feeding eccentric wheel on the described lower drive shaft, a connecting rod, swing arm, a freewheel clutch, a jaw clutch, a clutch shaft, a clutch connecting axle and a third hand tap gear that an amplitude of oscillation is adjustable; The two ends of described connecting rod are offered a circular hole and respectively and are set in described eccentric wheel respectively and are installed on the steady pin in the described side driving box along its axially extended mounting hole and by described circular hole and mounting hole; The two ends of described swing arm link to each other with described freewheel clutch with described connecting rod respectively; Described clutch shaft is arranged in the described side driving box rotationally, and half one in axial sliding of described freewheel clutch and described jaw clutch is successively set on the described clutch shaft; Described clutch connecting axle and described clutch shaft are positioned on the same central axis and are arranged on the inboard of described side driving box rotationally and extend inwardly to described needle gage feed box place, the two ends that half one in addition of described jaw clutch and described third hand tap gear are installed in described clutch connecting axle respectively, described third hand tap gear is meshed with described second bevel gear; Described clutch shifter axle upper edge circumference is offered a helicla flute, described operating grip assembly is installed on the overhanging end of described clutch shifter axle, one end of described clutch shifter slides on the described clutch shifter axle and the protruding pin on it is stretched in the described helicla flute, and the other end of described clutch shifter links to each other with half one of described jaw clutch.

Head and bearded needle case the utility model has the advantages that owing to can be moved synchronously off and on along guide rail, complete machine does not just need to move like this, reduced the vibration of complete machine, reduced the noise of machine, and can reduce floor space greatly, improve the utilization rate of Workshop Production area, also changed the feeding style of traditional mobile sewing simultaneously, be convenient to machine and be connected on the impregnation streamline; Because the needle gage feed arrangement of existing electrical control has mechanical feed mechanism again, therefore can change use at any time, the functional reliability of machine improves greatly, and safety coefficient is doubled; Owing to be provided with strainer, make the cloth width of cloth behind the impregnation can not produce contraction in the joint, improved yield rate.

Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described in detail, therefrom can see other purpose and advantage of the utility model.

Fig. 1 be joint Sewing machines of the present utility model the band broken section front view since drawing bigger, so being divided into three width of cloth Figure 1A, 1B and 1C represents, wherein I-I the side among the I among Figure 1A-I side and Figure 1B is joined, and the II among the II among Figure 1B-II side and Fig. 1 C-II side is joined;

Fig. 2 is the right view of the band broken section of Sewing machines as shown in Figure 1;

Fig. 3 is the cutaway view of side driving box in the utility model;

Fig. 4 is the left view of the band partial sectional view of Sewing machines side driving box as shown in Figure 3;

Fig. 5 is the cutaway view along " A-A " line among Fig. 4;

Fig. 6 be along the arrow among Fig. 4 " C " to view;

Fig. 7 is the cutaway view of the utility model mid-cut feed box;

Fig. 8 is the front view of head in the utility model;

Fig. 9 is the sectional view of Fig. 8;

Figure 10 is the front view of the band broken section of bearded needle case in the utility model;

Figure 11 is the vertical view of the band broken section of bearded needle case as shown in figure 10.

Now referring to Fig. 1, joint Sewing machines of the present utility model comprise base 1, side driving box 2, side support 3, upper and lower guide rail 4,5, working plate 6, head 7, square head transmission main shaft 7 ', bearded needle case 8, square bearded needle case transmission main shaft 8 ', needle gage feed box 9, pneumatic strainer 10, electrical apparatus control system (not drawing among the figure) and coil holder 11.Side driving box 2 and side support 3 are separately positioned on two sides of base 1, the two ends of upper rail 4, working plate 6 and lower guideway 5 are arranged on respectively on side driving box 2 and the side support 3 from top to bottom, and head 7 and bearded needle case 8 can endwisely slip in upper and lower guide rail 4,5 upper edges respectively.Needle gage feed box 9 and pneumatic strainer 10 are fixedly installed on respectively on the base 1.

Now referring to Fig. 1 and 3, side driving box 2 comprises power transmission shaft 12, lower drive shaft 13 and transmission device 14, head transmission main shaft 7 ' two ends removably link to each other respectively and be bearing on the side support 3 with last power transmission shaft 12, bearded needle case transmission main shaft 8 ' two ends removably link to each other respectively and be bearing on the side support 3 with lower drive shaft 13, head 7 and bearded needle case 8 slide over respectively head power transmission shaft 7 ' and bearded needle case power transmission shaft 8 ' on.Link to each other by transmission device 14 between last power transmission shaft 12 and the lower drive shaft 13, like this when lower drive shaft 13 rotates, drive simultaneously and go up power transmission shaft 12 and rotate.Thereby make bearded needle case 8 and the head 7 all the time can its internals of transmission when guide rail 4,5 is made move left and right and sew.Complete machine does not just need to move like this, has reduced the vibration of complete machine, has reduced the noise of machine, and can reduce floor space greatly, improve the utilization rate of Workshop Production area, also changed the feeding style of traditional mobile sewing simultaneously, be convenient to machine and be connected on the impregnation streamline.Last power transmission shaft 12 and head transmission main shaft 7 ' outboard end also install a handwheel 15 respectively so that can manually adjust the position of head 7 and bearded needle case 8 in case of necessity.And head transmission main shaft 7 ' and last power transmission shaft 12 between and bearded needle case transmission main shaft 8 ' and lower drive shaft 13 between the relative position of the bearded needle that makes the staight needle that can regulate head 7 in case of necessity and bearded needle case 8 of removably connecting so that can normally sew.

Now referring to Fig. 1,3,4,5 and 6, mechanical feed of the present utility model mechanism comprises operating grip assembly 16, needle gage feeding eccentric wheel 17, connecting rod 18, swing arm 19, freewheel clutch 20, jaw clutch 21, clutch shaft 22, clutch connecting axle 23, third hand tap gear 24, a clutch shifter 25, a clutch shifter axle 26 and needle gage governor motion.Needle gage feeding eccentric wheel 17 is fixedly installed on the lower drive shaft 13, the two ends of connecting rod 18 are offered a circular hole 27 and respectively along its axially extended mounting hole 28, and connecting rod 18 is arranged on the needle gage feeding eccentric wheel 17 and by mounting hole 28 by circular hole 27 and is enclosed within on the steady pin 29 that is fixedly installed on the side driving box 2.The two ends of swing arm 19 link to each other with freewheel clutch 20 with the middle part of connecting rod 18 respectively.But be bearing in the side driving box 2 of lower drive shaft 13 belows to clutch shaft 22 one-directional rotation, half one in axial sliding of freewheel clutch 20 and jaw clutch 21 is successively set on the clutch shaft 22.Clutch connecting axle 23 is positioned on the same central axis with clutch shaft 22 and is rotatably supported on the madial wall of side driving box 2 and extends inwardly to needle gage feed box 9 places, the two ends that half one in addition of jaw clutch 21 and third hand tap gear 24 are installed in clutch connecting axle 23 respectively.Clutch shifter axle 26 is rotatably supported on the madial wall of side driving box 2 and the one end stretches out on the lateral wall of side driving box 2.Clutch shifter axle upper edge circumference is offered a helicla flute 30, and operating grip assembly 16 comprises handle and lever operated dish 81.This operation board 81 is installed on the overhanging end of clutch shifter axle 26, one end of clutch shifter 25 slides on the clutch shifter axle 26 and the protruding pin 31 on it is stretched in the helicla flute 30, and the other end of clutch shifter 25 links to each other with half one in axial sliding of jaw clutch 21.

The needle gage governor motion comprises that rectangular-shaped needle gage is regulated connecting rod 32, needle gage is regulated eccentric wheel 33, regulating handle assembly 34, link supporting axle 35, needle gage adjusting axle sleeve 36 and alignment pin 37.Link supporting axle 35 is installed on the inside and outside sidewall of side driving box 2 of steady pin 29 belows, and needle gage is regulated connecting rod 32 and slided on the link supporting axle 35 at its place, right angle, and the end that needle gage is regulated connecting rod 32 is forked, and the other end slides on the swing arm 19.Needle gage adjusting axle sleeve 36 slides over the overhanging side of clutch shifter axle 26 and is rotatably supported on the lateral wall of side driving box 2, regulating handle assembly 34 comprises handle and lever operated dish 82, this lever operated dish 82 is installed in needle gage and regulates on the axle sleeve 36, and needle gage is regulated eccentric wheel 33 and is installed in needle gages in the side driving box 2 and regulates on the axle sleeve 36 and be embedded in needle gage is regulated the fork of an end of connecting rod 32.Alignment pin 37 is arranged on the regulating handle assembly 34.

Now referring to Fig. 1 and 7, needle gage feed box 9 of the present utility model comprises stepper motor 38, casing 39, first, second bevel gear 40,41 that is meshed, around wheel 42 and steel wire rope 43,44 and 45.Stepper motor 38 is installed in the outside of casing 39, but its main shaft stretches in the casing 39, first, second bevel gear 40,41 is installed in the main shaft of stepper motor 9 respectively and in wheel 42 rotating shaft 46, rotating shaft 46 around wheel 42 is rotatably supported on the roof and diapire of casing 39, and clutch connecting axle 23 passes the sidewall of casing 39 and the third hand tap gear 24 on it is meshed with second bevel gear 41.Steel wire rope 43 1 ends be fixed on around on the wheel 42 and on wheel 42 behind several circles, extend to side driving box 2 along the direction that is parallel to lower guideway 5, walk around two pulleys 47 that are installed in side driving box 2 then, be connected on the side of bearded needle case 8.Steel wire rope 44 1 ends are installed on the opposite side of bearded needle case 8, extend to side support 3 along the direction that is parallel to lower guideway 5, walk around two pulleys 48 that are installed on the side support 3 then, extend to side driving box 2 along the direction that is parallel to upper rail 4 again, and walk around two pulleys 49 that are installed on the side driving box 2, be connected on the side of head 7.Steel wire rope 45 1 ends are installed on the opposite side of head 7, extend to side support 3 along the direction that is parallel to upper rail 4, walk around two pulleys 50 that are installed on the side support 3 then, again on wheel 42 behind several circles, be fixed on wheel 42.

When stepper motor rotates for 38 controlled intermittences, drive around the intermittently rotation of wheel 42 dos by bevel gear 40,41, thereby Wound steel rope 45 and loosen steel wire rope 43, and make head 7 and bearded needle case 8 along upper rail 4 and lower guideway 5 same moved further by steel wire rope 44, produce needle gage, and reach along the purpose of cloth width of cloth sewing.When stepper motor 38 or electric control system are out of order, can carry out manual operation.At first pull operating grip assembly 16, clutch shifter 25 is moved right (as can be seen from Fig. 5) on clutch shifter axle 26, thereby half one in axial sliding that drives jaw clutch 21 half one draws close and contacts to other, and at this moment bearded needle case transmission main shaft 12 passes through eccentric wheel 17, connecting rod 18 and swing arm 19 drive freewheel clutch 20 and do intermittently to rotate, driving clutch shaft 22 thus does intermittently to rotate, and clutch connecting axle 23 is intermittently rotated by jaw clutch 21, also can drive around wheel 42 by bevel gear 24 like this and do intermittently to rotate, can see thus, the needle gage feed arrangement of the existing electrical control of the utility model, mechanical feed mechanism is arranged again, therefore can change use at any time, the functional reliability of machine improves greatly, thereby safety coefficient is doubled.When the needs metering needle apart from the time, can stir alignment pin 37 and pull regulating handle assembly 34, effect lower link 32 rotations at eccentric wheel 33 move up or down an end that is enclosed within on the swing arm 19, thereby can regulate the amplitude of oscillation of swing arm 19, reach the purpose of control needle gage.

Now referring to Fig. 1 and 2, they show the stepping motor control apparatus in the electric control system of the present utility model.Stepping motor control apparatus comprises photoelectric tube 52, blanking disc 51, light source (not drawing among the figure), pulse counter (not drawing among the figure) and stepping motor control circuit (not drawing among the figure).Offer a circumferential groove 53 on the blanking disc 51, blanking disc 51 is installed on bearded needle case transmission main shaft 8 ' one ends of side support 3 one sides, and photoelectric tube 52 and light source branch are located on the both sides relative position of blanking disc 51.When blanking disc 51 rotated, the light that is sent by light source can pass groove 53 and penetrate on photoelectric tube 52.Pulse counter links to each other with photoelectric tube with stepper motor 38 respectively by stepping motor control circuit, pulse counter can be regulated the pulse number that sends by manual control, can come control step motor 38 to do intermittently to rotate by blanking disc 51 like this, promptly when light is passed to photoelectric tube by groove 53, circuit is connected, pulse counter is counted according to the pulse number of setting, made its rotation to stepper motor 38 power supplies; Distribute up to pulse counter till the umber of pulse of setting, stepper motor 38 just stops operating, and produces a needle gage thus.So repeatedly, just can carry out the sewing of a pin one pin ground.When the needs metering needle apart from the time, only need to change the rotation amplitude that the pulse number of pulse counter can control step motor 38.The effect of the groove 53 on the blanking disc 51 is when ceaselessly sending pulse continuously when pulse counter generation fault, when blanking disc 51 goes to groove 53 ends, but with regard to breaking circuit, stepper motor 38 to be stopped operating.Therefore the length of groove 53 should be greater than required maximum needle gage.

Now referring to Fig. 1,8 and 9, head 7 of the present utility model comprises casing 54, shank eccentric wheel 55, two shanks 56, shank connectors 57, be equipped with some pins on it decide pin piece 58, presser feet 59, eight rollers 60 and two steel wires draw pin 61, wherein the structure of presser feet 59 and existing basic identical has just repeated no more here.Shank eccentric wheel 55 is arranged in the casing 54 and a square hole 62 is offered at its center, the head transmission is from axle 7 ' pass casing 54 and pass slidably in the square hole 62 of shank eccentric wheel 55, but the head transmission does not hinder head 7 to move along upper rail 4 again from the transmission shank eccentric wheel 55 of axle 7 ' both like this.Two shanks 56 vertically pass casing 54 and can be arranged on up or down on the casing 54, and the plane parallel of parallel to each other and its formation of two pin pins 56 is in the end face of shank eccentric wheel 55.Shank connector 57 fixedly is overlapped on two shanks 56 and its middle part links to each other with shank eccentric wheel 55, when head transmission main shaft 7 ' driving shank eccentric wheel 55 rotations, can drive two shanks 56 and move up and down like this.Decide needle plate 58 and be fixed on the lower end of two shanks 56, presser feet 59 is arranged on the rear side (being seen as the left side from Fig. 9) of shank 56.Eight rollers are installed on eight angles of casing 54 respectively and are bearing on the upper block 4.Steel wire draws pin 61 relatively to be installed in respectively on the two sides of the casing 54 that is parallel to shank eccentric wheel 55 end faces, and steel wire rope 44 and an end of 45 are connected to a steel wire and draw on the pin 61.

Now referring to Figure 10 and 11, bearded needle case 8 of the present utility model comprises casing 63, bevel-gear sett 64,65, translating cam 66, oscillating cam 67, camshaft 68, carriage release lever assembly 69, swing arm assembly 70, shifting axle 71, the bearded needle frame 72 of some bearded needles, eight rollers 73 and two steel wires are installed draws pin 74.One bevel gear 64 is rotatably supported on the sidewall of casing 63, offer a square hole 75 on it, bearded needle case transmission main shaft 8 ' pass casing 63 passes the square hole 75 on the bevel gear 64 slidably, but the drive bevel gear 64 of bearded needle case transmission main shaft 8 ' does not both hinder bearded needle case 8 to move along lower guideway 6 again like this.Camshaft 68 is rotatably supported in the casing 63 perpendicular to the axis of bevel gear 64, and another bevel gear 65, translating cam 66, oscillating cam 67 are installed on the camshaft 68 successively, and two bevel gears 64,65 are intermeshed.Offer a groove 76 on the side face of translating cam 66, offer a groove 77 on the end face of oscillating cam 67.Shifting axle 71 is parallel on the two side that camshaft 68 is bearing in casing 63 swingably.Bearded needle frame 72, carriage release lever assembly 69, swing arm assembly 70 are installed on the swinging axle 71 successively.The end of carriage release lever assembly 69 and swing arm assembly 70 is embedded respectively in the groove 76,77 of translating cam 66 and oscillating cam 67.When bevel gear 64 drives camshaft 68 transmissions under the driving of bearded needle case transmission main shaft 12, translating cam 66 and wobble wheel 67 are rotated synchronously, thereby drive carriage release lever assembly 69 and swing arm assembly 70, bearded needle frame 72 is moved in swing vertically, finish the action of colluding line.Eight rollers 73 are installed on eight angles of casing 63 respectively and are bearing on the lower guideway 6.Steel wire draws pin 74 relatively to be installed in respectively on the two sides perpendicular to the casing 63 of square hole 75 axis, and steel wire rope 43 and an end of 44 are connected to a steel wire and draw on the pin 74.

Now again referring to Fig. 1, pneumatic strainer 10 of the present utility model comprises cylinder 78, tense wire rope 79 and two hook assemblies 80.Two hook assemblies 80 are in the same plane and be positioned at the two ends of working plate 5 with working plate 5 basically, wherein be the left side among the hook assembly 80(figure) affixed with working plate 5, another hook assembly 80 can link to each other along the longitudinal sliding motion of the groove on the working plate 5 and with tense wire rope 79, and the other end of tense wire rope is connected on the cylinder 78.When to cylinder 78 air feed, by tense wire rope 79 pulling hook assemblies, the cord fabric of hook on two hook assemblies 80 tightened, be convenient to sewing and improve sewing quality.

Claims (7)

1, a kind of joint Sewing machines, it comprise a base 1, a working plate 6, be fixed on the side support 3 of described base 1 one sides, at least one upper rail 4, a head 7, a bearded needle case 8, a head transmission main shaft 7 ', a bearded needle case transmission main shaft 8 ', an electrical apparatus control system and the coil holder 11 with main motor control assembly, it is characterized in that, it also comprise one be arranged on the side driving box 2 of described base 1 opposite side, at least one lower guideway 5, that is positioned at described upper rail 4 belows is fixed on a needle gage feed box 9 and a pneumatic strainer 10 on the described base 1; The two ends of described upper rail 4 and lower guideway 5 are separately positioned on described side support 3 and the side driving box 2, described working plate 6 is fixedly installed on the described side support 3 and side driving box 2 of described lower guideway 5 tops, and described head 7 and bearded needle case 8 are slidably disposed on respectively on described upper rail 4 and the lower guideway 5; Described side driving box 2 comprises last power transmission shaft 12, a lower drive shaft 13 and a transmission device 14 by described main motor control assembly transmission, and the described power transmission shaft 12 of going up links to each other with described lower drive shaft 13 by described transmission device 14; Described head transmission main shaft 7 ' with bearded needle case transmission main shaft 8 ' two ends respectively with describedly go up power transmission shaft 12, lower drive shaft 13 links to each other with described side support 3, described head 7 and bearded needle case 8 slide over respectively described head transmission main shaft 7 ' with bearded needle case transmission main shaft 8 ' on; Described needle gage feed box 9 comprises a stepper motor 38 by described electrical apparatus control system control, be meshed first, second bevel gear 40,41, one around wheel 42 and three steel wire ropes 43,44 and 45, described first, second bevel gear 40,41 be installed in respectively described stepper motor 38 main shaft and described around the wheel rotating shaft on, the two ends of a described steel wire rope 43 are connected to and describedly are connected a side of described crochet hook case 8 around wheel 42 with after walking around the pulley that is arranged on described side driving box 2 inboards, be connected a side of described head 7 after the two ends of described another steel wire rope 44 are connected to the opposite side of described crochet hook case 8 and walk around the pulley that is arranged on described side support 3 and side driving box 2 inboards, be connected described on wheel 42 after the described two ends of a steel wire rope 45 again are connected to the opposite side of described head 7 and walk around the pulley that is arranged on described side support 3 inboards; Described strainer 10 comprises that a cylinder 78, a tense wire rope 79 and two are in the same plane and be positioned at the hook assembly 80 at described working plate 6 two ends with described working plate 6 basically, a described hook assembly 80 and described working plate 6 are affixed, described another hook assembly 80 can link to each other along the groove longitudinal sliding motion on the described working plate 6 and with described tense wire rope 79, and the other end of described tense wire rope 79 is connected on the described cylinder 78; Described electrical apparatus control system also comprises stepping motor control apparatus, described stepping motor control apparatus comprises a photoelectric tube 52, a blanking disc 51, a light source and a stepping motor control circuit, offer a circumferential groove 53 on the described blanking disc 51 and be installed in the described bearded needle case transmission main shaft 8 of described side support 3 one sides ' an end on, described photoelectric tube 52 and light source branch are located on the both sides relative position of described blanking disc 51, and described stepping motor control circuit is electrically connected mutually with described stepper motor 38 and photoelectric tube 52 respectively.

2, joint Sewing machines as claimed in claim 1, it is characterized in that, it also comprises a mechanical feed mechanism, and described mechanical feed mechanism comprises an operating grip assembly 16, one is installed in the needle gage feeding eccentric wheel 17 on the described lower drive shaft 13, one connecting rod 18, the swing arm 19 that one amplitude of oscillation is adjustable, one freewheel clutch 20, one jaw clutch 21, one clutch shaft 22, one clutch connecting axle 23, one third hand tap gear 24, one clutch shifter 25 and one is arranged on described side rotationally to be changeed in the case 2 and an end stretches out the clutch shifter axle 26 of described side driving box 2; The two ends of described connecting rod 18 are offered a circular hole 27 and respectively and are set in described eccentric wheel 17 respectively and are installed on the steady pin 29 in the described side driving box 2 along its axially extended mounting hole 28 and by described circular hole 27 and mounting hole 28; The two ends of described swing arm 19 link to each other with described freewheel clutch 20 with described connecting rod 18 respectively; Described clutch shaft 22 is arranged in the described side driving box 2 swingably, and half one in axial sliding of described freewheel clutch 20 and described jaw clutch 21 is successively set on the described clutch shaft 22; Described clutch connecting axle 23 is positioned on the same central axis with described clutch shaft 22 and is arranged on the inboard of described side driving box 2 rotationally and extends inwardly to described needle gage feed box 9 places, the two ends that half one in addition of described jaw clutch 21 and described third hand tap gear 24 are installed in described clutch connecting axle 23 respectively, described third hand tap gear 24 is meshed with described second bevel gear 41; Described clutch shifter axle 26 upper edge circumference are offered a helicla flute 30, described operating grip assembly 16 is installed on the overhanging end of described clutch shifter axle 26, one end of described clutch shifter 25 slides on the described clutch shifter axle 26 and the protruding pin 31 on it is stretched in the described helicla flute 30, and the other end of described clutch shifter 25 links to each other with half one in axial sliding of described jaw clutch 21.

3, joint Sewing machines as claimed in claim 1, it is characterized in that, described stepping motor control apparatus also comprises an adjustable pulse counter, and described pulse counter is electrically connected with described stepper motor 38 and photoelectric tube 52 respectively mutually by stepping motor control circuit.

4, joint Sewing machines as claimed in claim 2, it is characterized in that, described pulse motor control device also comprises an adjustable pulse counter, and described pulse counter is electrically connected with described stepper motor 38 and photoelectric tube 51 respectively mutually by stepping motor control circuit; Described mechanical feed mechanism also comprises a needle gage governor motion, and described needle gage governor motion comprises that a needle gage regulates connecting rod 32, a needle gage and regulate link supporting axle 35, that eccentric wheel 33, a regulating handle assembly 34, be installed in described steady pin 29 belows and slide over needle gage on the overhanging side of described clutch shifter axle 26 and regulate axle sleeve 36 and and be arranged on alignment pin 37 on the described regulating handle assembly 34; The end that described needle gage is regulated connecting rod 32 is forked, and the middle part of described needle gage adjusting connecting rod 32 slides on the described link supporting axle 35 and its other end slides on the described swing arm 19; Described regulating handle assembly 34 is installed in described needle gage and regulates on the axle sleeve 36, and described needle gage adjusting eccentric wheel 33 is installed on the described needle gage adjusting axle sleeve 36 and is embedded in described needle gage is regulated an end yoke portion of connecting rod 32.

5, joint Sewing machines as claimed in claim 4, it is characterized in that, described head comprise a casing 54, a shank eccentric wheel 55, at least one shank 56, one be equipped with on it row's pin decide pin piece 58, a presser feet 59, second wheel 60 and two steel wires draw pin 61 at least; Described shank eccentric wheel 55 is arranged in the described casing 54 and its center offers a square hole 62, described head transmission main shaft 7 ' and be a square shaft and the square hole 62 that passes described shank eccentric wheel 55 slidably; Described shank 56 is parallel to the end face of described shank eccentric wheel 55 and vertically passes described casing 54 and can be arranged on up or down on the described casing 54, described shank eccentric wheel 55 is fixedly linked with described shank 56, describedly decides the lower end that needle plate 58 is installed in described shank 56; Described roller 60 is installed on the two sides of axis of described square hole 62 of being parallel to of described casing 54 respectively and is bearing on the described upper rail 4; Described steel wire draws pin 61 to be installed in respectively on the two sides of described casing 54.

6, joint Sewing machines as claimed in claim 5, it is characterized in that described bearded needle case comprises that a casing 63, bevel-gear sett 64,65, a side face have that oscillating cam that the translating cam 66 of groove 76, an end face have groove 77 67, a camshaft 68, a carriage release lever assembly 69, a swing arm assembly 70, a shifting axle 71, one are equipped with the bearded needle frame 72 of some bearded needles on it, second wheel 73 and two steel wires draw pin 74 at least; A described bevel gear 64 is arranged on the described casing 63 rotationally and its center offers a square hole 75, described bearded needle case transmission main shaft 8 ' and be in a square shaft and the square hole 75 that passes described bevel gear 64 slidably; Described cam 68 is arranged in the described casing 63 rotationally, and described another bevel gear 65, translating cam 66 and oscillating cam 67 are installed on the described camshaft successively and described two bevel gears 64,65 are meshing with each other; Described shifting axle 71 is parallel to described camshaft 68 and is arranged on swingably in the described casing 63, and described bearded needle frame 72, carriage release lever assembly 69 and swing arm assembly 70 are installed on the described shifting axle 71 successively and the end of described carriage release lever assembly 69 and oscillating bar assembly 70 is separately positioned in the groove 76,77 of described translating cam 66 and pendulum cam 67; Described roller 73 is installed on the two sides of described square hole 75 axis of being parallel to of described casing 63 respectively and is bearing on the described lower guideway 5; Described steel wire draws pin 74 to be installed in respectively on the two sides of described casing 63.

7, as claim 5 or 6 described joint Sewing machiness, it is characterized in that, described head 7 also comprises a shank connector 57 and two shanks 56, and described shank connector 57 fixedly is overlapped on the two described shanks 56 that be arranged in parallel, and described shank eccentric wheel 55 links to each other with described shank connector 57.

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