The special-purpose cloth-feeding device of elastic woven material
Technical field
The present invention relates to the cloth-feeding device of Sewing machines, particularly, relate to the special-purpose cloth-feeding device of a kind of elastic woven material.
Background technology
Elastic woven material is because its elastic telescopic characteristic, when it is made, its cloth-feeding device just there is corresponding higher requirement, requirement makes that big distortion can not take place elastic woven material in the process, can not be that cloth after making has lost elasticity, and to meet present cost low, safeguard and be easy to industrial requirements.
Summary of the invention
The special-purpose cloth-feeding device of elastic woven material that the purpose of this invention is to provide a kind of work feed reliable in action, high efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The special-purpose cloth-feeding device of a kind of elastic woven material, comprise and rotate the main shaft that is arranged on the casing, be fixedly installed on the gag lever post on the casing and be fixedly installed on fixed axis on the described casing, described main shaft, described gag lever post and described fixed axis three parallel setting, be provided with the active retainer and the flexible retainer that are parallel to each other between described main shaft and the described gag lever post, the rotation of described main shaft drives an end of described active retainer, one end of described flexible retainer swings up and down respectively, described active retainer, be provided with first driving mechanism that moves back and forth before and after the described active retainer of control between described fixed axis and the described main shaft, described flexible retainer, be provided with second driving mechanism that moves back and forth before and after the described flexible retainer of control between described fixed axis and the described main shaft, described active retainer, the same side end that described flexible retainer can swing up and down is provided with initiatively feed dog, flexible feed dog, relative distance between described active feed dog and the described flexible feed dog is adjustable, the working face of described active feed dog and described flexible feed dog is located in the same horizontal plane, and the amplitude of moving forward and backward that is greater than or less than described active feed dog with the amplitude of moving forward and backward of described flexible feed dog is regulated the stretching or the contraction of elastic woven material.
Preferably, between described main shaft and the described active retainer, be provided with between described main shaft and the described flexible retainer and be used to regulate the tooth lifting cam assembly that described active retainer and described flexible retainer swing up and down synchronously.
Preferably, the end away from described active feed dog of described active retainer be can on fore-and-aft direction, slide along described gag lever post, and the fork-shaped that can rotate around described gag lever post, the end away from described flexible feed dog of described flexible retainer be can on fore-and-aft direction, slide along described gag lever post, and can be around the fork-shaped of described gag lever post rotation.
Preferably, described first driving mechanism comprises the needle gage cam pack that is arranged on the described main shaft, rotation is arranged on the block set on the described fixed axis, be connected the work feed connecting rod between described needle gage cam pack and the described block set, has first elongated end on the direction of described block set upper edge perpendicular to the axial line of described fixed axis, one end of described work feed connecting rod and the end of described first elongated end are hinged, the other end matches with described needle gage cam pack and orders about described work feed connecting rod reciprocally swinging on fore-and-aft direction, offer a stopper slot on the described work feed connecting rod, be set with a linked block that extends in the described stopper slot on the described active retainer, described active retainer and initiatively feed dog swing along with the swing of described work feed connecting rod.
Preferably, described second driving mechanism comprises described needle gage cam pack, the edge is perpendicular to extending second elongated end that is arranged on the described block set on the direction of the axial line of described fixed axis, be fixedly mounted on the telescopic adjustment bar of the arc on the end of described second elongated end, slidably be provided with a slide block on the described telescopic adjustment bar, one shrinking connecting-rod is installed on the described slide block, described shrinking connecting-rod is connected to described flexible retainer by a transiting rod, when described work feed connecting rod drives described block set when described fixed axis back and forth rotates, the telescopic adjustment bar on described second elongated end drives described flexible retainer and flexible feed dog swing by described shrinking connecting-rod and described transiting rod.
Preferably, be set with a limited block on the described slide block, casing is provided with a Y-piece of regulating the position of described slide block on described telescopic adjustment bar by described limited block, the forked end of described Y-piece is hinged on described limited block clamping, the other end on the casing, regulates relative distance between described active feed dog and the described flexible feed dog thereby described Y-piece rotate to drive described slide block sliding on the described telescopic adjustment bar.
Preferably, be provided with the handle of being convenient to rotate with the extension of forked end opposite direction on the described Y-piece.
Preferably, the center of circle of the arc of the shaft center line of the shaft center line of described Y-piece, described shrinking connecting-rod and described telescopic adjustment bar is located on the same line.
Beneficial effect of the present invention is: swing up and down by can realizing, the active feed dog of swing and flexible feed dog are realized the continuous work feed to elastic woven material, initiatively each action of feed dog and flexible feed dog all drives by a main shaft, do not need extra power source, also can guarantee simultaneously the synchronism of relevant action, and initiatively the relative distance between feed dog and the flexible feed dog can be regulated, just can regulate relative distance between the two according to the elastic telescopic characteristic of different elastic woven materials, thereby can reach optimum work feed effect, be adapted at promoting the use of in the sector field.
Description of drawings
Accompanying drawing 1 is the structural representation (part splits, and wherein casing is not shown) of the special-purpose cloth-feeding device of elastic woven material of the present invention;
Accompanying drawing 2 is the structural representation of the block set in the special-purpose cloth-feeding device of elastic woven material of the present invention.
In the accompanying drawing: 1, main shaft; 2, gag lever post; 3, fixed axis; 4, active retainer; 5, flexible retainer; 6, active feed dog; 7, flexible feed dog; 8, tooth lifting cam assembly; 9, needle gage cam pack; 10, block set; 11, work feed connecting rod; 12, first elongated end; 13, stopper slot; 14, second elongated end; 15, telescopic adjustment bar; 16, slide block; 17, shrinking connecting-rod; 18, transiting rod; 19, limited block; 20, Y-piece; 21, handle.
The specific embodiment
Below in conjunction with embodiment shown in the drawings the present invention is made following detailed description:
Initiatively the length direction of retainer 4 is a fore-and-aft direction, its forked end directed forward.
Shown in accompanying drawing 1 and accompanying drawing 2, the special-purpose cloth-feeding device of elastic woven material of the present invention comprises that rotation is arranged on the main shaft 1 on the casing, be fixedly installed on the gag lever post 2 on the casing and be fixedly installed on fixed axis 3 on the casing, main shaft 1, gag lever post 2 and fixed axis 3 threes parallel setting, be provided with the active retainer 4 and the flexible retainer 5 that are parallel to each other between main shaft 1 and the gag lever post 2, the rotation of main shaft 1 drives an initiatively end of retainer 4, one end of flexible retainer 5 swings up and down respectively, active retainer 4, be provided with first driving mechanism that control active retainer 4 front and back move back and forth between fixed axis 3 and the main shaft 1, flexible retainer 5, be provided with second driving mechanism that flexible retainer 5 front and back of control move back and forth between fixed axis 3 and the main shaft 1, active retainer 4, the same side end that flexible retainer 5 can swing up and down is provided with initiatively feed dog 6, flexible feed dog 7, initiatively the relative distance between feed dog 6 and the flexible feed dog 7 is adjustable, initiatively feed dog 6 is located in the same horizontal plane with the working face of flexible feed dog 7, regulate the stretching or the contraction of elastic woven material with the amplitude of moving forward and backward of flexible feed dog 7 amplitude of moving forward and backward of feed dog 6 initiatively of being greater than or less than, between main shaft 1 and the active retainer 4, be provided with between main shaft 1 and the flexible retainer 5 and be used to regulate the tooth lifting cam assembly 8 that initiatively retainer 4 and flexible retainer 5 swing up and down synchronously, initiatively the end away from active feed dog 6 of retainer 4 is and can slides on fore-and-aft direction along gag lever post 2, and can be around the fork-shaped of gag lever post 2 rotations, the end away from flexible feed dog 7 of flexible retainer 5 is and can slides on fore-and-aft direction along gag lever post 2, and can be around the fork-shaped of gag lever post 2 rotations, first driving mechanism comprises the needle gage cam pack 9 that is arranged on the main shaft 1, rotation is arranged on the block set 10 on the fixed axis 3, be connected the work feed connecting rod 11 between needle gage cam pack 9 and the block set 10, has first elongated end 12 on the direction of block set 10 upper edges perpendicular to the axial line of fixed axis 3, one end of work feed connecting rod 11 and the end of first elongated end 12 are hinged, the other end matches with needle gage cam pack 9 and orders about work feed connecting rod 11 reciprocally swinging on fore-and-aft direction, offer a stopper slot 13 on the work feed connecting rod 11, initiatively be set with a linked block that extends in the stopper slot 13 on the retainer 4, initiatively retainer 4 and initiatively feed dog 6 swing along with the swing of work feed connecting rod 11, second driving mechanism comprises needle gage cam pack 9, the edge is perpendicular to extending second elongated end 14 that is arranged on the block set 10 on the direction of the axial line of fixed axis 3, be fixedly mounted on the telescopic adjustment bar 15 of the arc on the end of second elongated end 14, slidably be provided with a slide block 16 on the telescopic adjustment bar 15, one shrinking connecting-rod 17 is installed on the slide block 16, shrinking connecting-rod 17 is connected to flexible retainer 5 by a transiting rod 18, when work feed connecting rod 11 drives block set 10 when fixed axis 3 back and forth rotates, telescopic adjustment bar 15 on second elongated end 14 drives flexible retainer 5 and flexible feed dog 7 swings by shrinking connecting-rod 17 and transiting rod 18, be set with a limited block 19 on the slide block 16, casing is provided with a Y-piece 20 that comes the position of adjusting slider 16 on telescopic adjustment bar 15 by limited block 19, the forked end of Y-piece 20 is with limited block 19 clampings, the other end is hinged on the casing, thereby Y-piece 20 rotating band movable sliders 16 are in the relative distance of sliding on the telescopic adjustment bar 15 between adjusting active feed dog 6 and the flexible feed dog 7, be provided with the handle of being convenient to rotate 21, the shaft center line of Y-piece 20 with the extension of forked end opposite direction on the Y-piece 20, the center of circle of the arc of the shaft center line of shrinking connecting-rod 17 and telescopic adjustment bar 15 is located on the same line.
The special-purpose cloth-feeding device of elastic woven material of the present invention, swing up and down by can realizing, the active feed dog 6 of swing and flexible feed dog 7 are realized the continuous work feed to elastic woven material, initiatively each action of feed dog 6 and flexible feed dog 7 all drives by a main shaft 1, do not need extra power source, also can guarantee simultaneously the synchronism of relevant action, and initiatively the relative distance between feed dog 6 and the flexible feed dog 7 can be regulated, just can regulate relative distance between the two according to the elastic telescopic characteristic of different elastic woven materials, thereby can reach optimum work feed effect, be adapted at promoting the use of in the sector field.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.