CN108532135B - Feeding wheel adjusting mechanism of sewing machine - Google Patents
Feeding wheel adjusting mechanism of sewing machine Download PDFInfo
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- CN108532135B CN108532135B CN201810523719.1A CN201810523719A CN108532135B CN 108532135 B CN108532135 B CN 108532135B CN 201810523719 A CN201810523719 A CN 201810523719A CN 108532135 B CN108532135 B CN 108532135B
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- shaft
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- rotating shaft
- bevel gear
- positioning
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- 230000007246 mechanism Effects 0.000 title claims abstract description 102
- 238000009958 sewing Methods 0.000 title claims abstract description 32
- 230000033001 locomotion Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 8
- 244000309464 bull Species 0.000 description 6
- 239000010985 leather Substances 0.000 description 5
- 230000003031 feeding effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
- D05B27/18—Feed cups
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
Abstract
A feeding wheel adjusting mechanism of a sewing machine comprises a driving wheel, driven wheels and a feeding wheel, wherein the driving wheel is fixed on a universal joint III, one end of the universal joint III is connected with a rotating shaft V, the rotation is controlled through the rotating shaft V, the driven wheels are totally two, the driven wheels are fixed at two ends of a shaft, one end of the shaft is meshed with the driving wheel, the driven wheels at the other end of the shaft are meshed with the feeding wheel, a bearing is sleeved on the shaft, two positioning rings are arranged on the bearing, one positioning ring is internally provided with a first positioning rod, one end of the first positioning rod is inserted into the three other end of the universal joint, the other end of the first positioning rod is inserted into the inner wall of a cover body, an annular hole of the other positioning ring is arc-shaped, a second positioning rod is inserted into the annular hole of the arc-shaped positioning rod, the second positioning rod is fixed on the inner wall of the cover body, the side wall of the feeding wheel is provided with a positioning ring, the positioning ring is provided with a plurality of positioning pins, and the side wall of the cover body is provided with a plurality of vertical sliding grooves, and the positioning pins are clamped in the vertical sliding grooves. The feeding wheel can be adjusted up and down, and the application range is enhanced.
Description
Technical field:
the invention relates to the technical field of sewing machines, in particular to a feeding wheel adjusting mechanism of a sewing machine, which is suitable for sewing leather and decoration seams and is mainly used for sewing high-grade leather shoes, bags and handbags.
The background technology is as follows:
the traditional industrial high-speed cylinder type sewing machine has a mechanism design which is roughly divided into a straight cylinder type sewing machine and a transverse cylinder type sewing machine, wherein the cylinder body of the straight cylinder type sewing machine faces an operator in the axial direction, and the axial direction of a transmission shaft of the whole sewing machine is the same; whereas the cylinder of the horizontal cylinder type sewing machine axially extends in front of the operator. Since the straight-cylinder type sewing machine is applied to sewing clothes cuffs, cuffs elastic bands, and wrapping sewing of various circular products. In terms of convenience of operation, most of the adjusting parts of the straight-tube type sewing machine are blocked by the sewing mechanism at the front end of the straight tube when in use, so that the adjusting parts are not beneficial to operation and adjustment.
The invention comprises the following steps:
the invention aims to solve the technical problem of providing a feeding wheel adjusting mechanism of a sewing machine, which has simple structure and reasonable design, is suitable for sewing and decorating seams of leather and leather, and is mainly used for sewing high-grade leather shoes, bags and handbags.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
the utility model provides a sewing machine feed wheel guiding mechanism, feed wheel guiding mechanism dustcoat has the cover body, its characterized in that: the feeding wheel adjusting mechanism comprises a driving wheel, driven wheels and a feeding wheel, wherein the driving wheel is fixed on a universal joint III, one end of the universal joint III is connected with a rotating shaft five, the rotation is controlled through the rotating shaft five, the driven wheels are fixed at two ends of a shaft, the driven wheels at one end of the shaft are meshed with the driving wheel, the driven wheels at the other end of the shaft are meshed with the feeding wheel, a bearing is sleeved on the shaft, two positioning rings are arranged on the bearing, one positioning ring is inserted with a positioning rod I, one end of the positioning rod I is inserted into the other end of the universal joint III, the other end of the positioning rod I is inserted into the inner wall of a cover body, an annular hole of the other positioning ring is arc-shaped, the positioning rod II is inserted into the annular hole of the arc-shaped, the positioning rod II is fixed on the inner wall of the cover body, the side wall of the feeding wheel is provided with a positioning ring, the side wall of the cover body is provided with a plurality of vertical sliding grooves, and the positioning pins are clamped in the vertical sliding grooves.
The sewing machine with the matched adjusting mechanism comprises a workbench, wherein the workbench supports a main transmission motor through an upper shell, and an upper feeding mechanism and a thread take-up lever mechanism are arranged at the front end of the upper shell, and the sewing machine is characterized in that: the front end of the main transmission motor is provided with a belt pulley I, a belt pulley II is arranged below the workbench, the belt pulley I is connected with the belt pulley II through a belt I, the belt pulley II is connected with a rotating shaft I, and the rotating shaft I controls the main motion mechanism and the feeding mechanism; the main motion mechanism comprises a bevel gear I at the front end of a rotating shaft I, the bevel gear I drives a belt pulley through a meshing gear, and a universal connector I controlled by the belt pulley is connected with a rotating shuttle through a rotating shaft II; the feeding mechanism comprises a crankshaft in the middle section of a first rotating shaft, the crankshaft is connected to a swinging rod through a first pull rod, a second pull rod is arranged at the front end of the swinging rod, the second pull rod pulls the unidirectional pezium, a bevel gear five is arranged at the upper end of the unidirectional pezium, a universal connector two is controlled by the bevel gear five through a meshing gear, the universal connector two is connected with a feeding wheel adjusting mechanism through a second rotating shaft five, and the second rotating shaft five are obliquely arranged upwards.
The main motion mechanism comprises a first bevel gear at the front end of a first rotating shaft, a vertical rotating shaft is arranged on a workbench, a second bevel gear is arranged at the lower end of the vertical rotating shaft, the first bevel gear is meshed with the second bevel gear, a third bevel gear is arranged at the upper end of the vertical rotating shaft, the main motion mechanism further comprises a third belt pulley and a fourth belt pulley which are connected through a second belt, a shaft is arranged in the middle of the third belt pulley, a fourth bevel gear is arranged on the shaft, the fourth bevel gear is meshed with the third bevel gear, a shaft is arranged in the middle of the fourth belt pulley, the shaft is connected with a first universal connector, and the third rotary shuttle is connected with the first universal connector through the second rotating shaft;
the feeding mechanism comprises a crankshaft at the middle section of a first rotating shaft, the crankshaft is connected to a swinging rod through a first pull rod, a second pull rod is arranged at the front end of the swinging rod, the second pull rod pulls one-way green, a bevel gear five is arranged at the upper end of the one-way green, the feeding mechanism further comprises a bevel gear six, one end of a shaft of the positioning bevel gear six is provided with a gear one, a gear one is connected with a gear two sleeved on the third rotating shaft, the third rotating shaft is further provided with a gear three, a gear three is connected with a gear four at one end of the fourth rotating shaft, a gear five is arranged at the other end of the fourth rotating shaft, the gear five is connected with a gear seven through a gear six, a positioning shaft of the gear seven is connected with a universal connector two, and the universal connector two is connected with a feeding wheel adjusting mechanism through the rotation shaft five;
the workbench is provided with a lower shell, two ends of a rotating shaft I are positioned on the side wall of the lower shell, a positioning ring is arranged in the middle section of the vertical shaft, the positioning ring is fixed on the wall of the lower shell, the upper end of the vertical shaft is inserted into the workbench, a box body is arranged outside the unidirectional peylinder, the box body is clamped in a groove in the inner wall of the lower shell, two ends of a shaft of a positioning bevel gear II are positioned on the side wall of the lower shell, three ends of the rotating shaft II are positioned on the side wall of the lower shell, four rotating shafts are positioned on the side wall of the lower shell, a positioning ring is sleeved on the belt pulley III, the positioning ring is embedded on the side wall of the lower shell, six gears are sleeved on the shaft of the side wall of the lower shell, a gear cover is arranged on the working table surface, two ends of a positioning shaft seven gears are positioned on the side wall of the gear cover, the belt pulley IV is provided with a positioning ring, the side wall of the lower shell is provided with an arc track groove, and two ends of a swinging rod are clamped in the arc track groove;
the gear cover outside be equipped with the slant cover body, the slant cover body covers pivot two and pivot five, and the slant cover body top is equipped with two holes, is equipped with bearing one and bearing two respectively in the hole, pivot two other end location in bearing one on slant cover body top, the rotating shuttle pass bearing one through universal joint three and be connected with pivot two, pivot five other ends location in bearing two on slant cover body top, the feed wheel guiding mechanism pass bearing two through universal joint four and be connected with pivot five.
The belt transmission between the belt pulley I and the belt pulley II is divided into two parts, the belt pulley I and the belt pulley V are synchronously transmitted through a belt, the belt pulley II and the belt pulley V are synchronously transmitted through a belt, the belt pulley V and the belt pulley V are sleeved on the same shaft, bearings are arranged at two ends of the shaft, and the bearings are embedded in the upper shell.
The first pull rod is provided with a branch pull rod III which is connected with a vertical rod, the vertical rod is connected with one end of the pull rod on the shaft for controlling the upper feeding mechanism, the middle section of the pull rod is fixed in the upper shell, the shaft of the upper feeding mechanism and the swinging shaft of the feeding mechanism are the same in principle, and the movement of the upper feeding mechanism is controlled through gears and unidirectional peylines.
The lower shell in be equipped with and lift the presser foot electro-magnet, the workstation on insert vertical axle, vertical axle bottom location is in the axle sleeve on lower shells inner wall, the axle sleeve lateral wall is equipped with long slide, the bull stick passes and connects on vertical epaxial behind the long slide of axle sleeve, the bull stick is connected with lift the presser foot electro-magnet, vertical axle top location is in last casing, the top still overlaps simultaneously has the cam, is equipped with the stay cord on the cam, stay cord control take-up lever mechanism, lift the presser foot electro-magnet and not under the energized state, lift the telescopic link of presser foot electro-magnet front end and withdraw, lift the telescopic link of presser foot electro-magnet front end under the energized state and stretch out, the bull stick moves around long slide, when moving, drives vertical axle rotation.
The lower shell is internally provided with a lower feeding backstitch electromagnet, the lower shell is internally provided with a positioning rod, a push rod is sleeved on the positioning rod, one end of the push rod is connected with the lower feeding backstitch electromagnet in an electrified manner, the other end of the push rod is hinged to one side of the box body, a groove for placing the box body is a sliding groove, the whole box body is a sliding block, a bevel gear seven is arranged on a shaft of the positioning bevel gear six, the bevel gear seven is opposite to a six-tooth opening of the bevel gear, the bevel gear seven is positioned at the other end of the shaft of the positioning bevel gear six, the box body is jacked open by the push rod, the bevel gear five is meshed with the bevel gear seven after being separated from the bevel gear six, the telescopic rod at the front end of the lower feeding backstitch electromagnet is retracted, the bevel gear five is meshed with the bevel gear six in an unpowered state, the telescopic rod at the front end of the lower feeding backstitch electromagnet stretches out, the push rod rotates around the positioning rod, the other end of the push rod pushes the sliding block to slide, and the bevel gear five is meshed with the bevel gear seven after being separated from the bevel gear six.
The feeding wheel adjusting mechanism is covered by a cover body, the cover body is connected with the inclined cover body, the cover body wraps the rotating shuttle at the same time, an opening is formed in the upper end of the cover body, and the feeding wheel adjusting mechanism and the rotating shuttle extend out of the opening surface.
The working principle is as follows:
the machine is powered by a main transmission motor, and realizes the rotation motion of the rotating shuttle, the simultaneous feeding of the upper and lower feeding mechanisms, the coordinated linkage of the needle and the thread take-up lever through an intermediate transmission mechanism. The automatic presser foot lifting function is achieved by the control of the presser foot lifting electromagnet. The backstitch is controlled by a lower feeding backstitch electromagnet.
The method comprises the following steps: the main transmission motor drives the belt pulley II to rotate through the belt pulley I, the rotating shaft I connected with the belt pulley II rotates to drive the bevel gear I to rotate, the belt pulley III is driven to rotate through the bevel gear II and the bevel gear III, the belt pulley IV is driven to rotate through the belt II, the shaft connected with the belt pulley IV drives the universal joint I to rotate when the belt pulley IV rotates, the rotating shaft II is controlled to rotate, and the universal joint III at the other end of the rotating shaft II controls the rotating shuttle to rotate;
the first rotating shaft rotates and controls the swinging rod to swing up and down through the crankshaft and the first pull rod, the second pull rod at the front end of the swinging rod pulls the unidirectional bearing Lin Shanxiang to intermittently rotate, the unidirectional bearing bevel gear five drives the bevel gear six to intermittently rotate, so that the positioning shafts of the first gear, the second gear, the third gear, the fourth gear, the fifth gear, the sixth gear and the seventh gear are controlled to be connected with the universal joint two, the universal joint two drives the rotating shaft five to rotate, and the universal joint four at the other end of the rotating shaft five controls the feeding wheel adjusting mechanism to intermittently rotate, and the feeding effect is achieved;
the first pull rod is provided with a branch pull rod III which is connected with a vertical rod, the vertical rod is connected with the pull rod on the shaft for controlling the upper feeding mechanism, the first pull rod reciprocates while the feeding wheel adjusting mechanism feeds, and the third pull rod is driven to reciprocate in the same way, so that the shaft of the upper feeding mechanism is pulled to swing around the shaft of the upper feeding mechanism of the cam, and the principle is the same as that of a swinging shaft of the feeding mechanism, and the movement of the upper feeding mechanism is controlled through a gear and a unidirectional pelargon;
meanwhile, a bevel gear seven is correspondingly arranged on the shaft of the bevel gear six, the push rod is controlled by the lower feeding backstitch electromagnet to push the box body, the box body moves in the chute, the gear five is meshed with the bevel gear seven after being separated from the bevel gear six, and the gear one can rotate bidirectionally by changing the meshing of the gear five, the bevel gear six and the bevel gear seven. Then other intermediate gears and universal connectors drive the feeding wheels to rotate forward and backward so as to achieve the feeding effect;
the electromagnet for lifting the presser foot controls the rotating rod to rotate, so that the vertical shaft is driven to rotate, and then, the cam at the top end of the vertical shaft rotates, and the cam pulls the stay rope to control the thread take-up lever mechanism;
the universal connector III controls the driving wheel to rotate, the driving wheel drives the driven wheel to rotate, then the feeding wheel is controlled to rotate for feeding, the first positioning rod and the second positioning rod exist, the shaft of the driven wheel swings around the first positioning rod as the center, the swinging radian is the arc annular hole radian of the other positioning ring, the driving wheel is different from the feeding wheel in number of teeth, the circumference is different, after the shaft of the driven wheel deviates, the driven wheel is driven to deviate, the circle center distance between the driven wheel and the feeding wheel is changed, and the feeding wheel moves upwards or slides downwards to finish adjustment.
Compared with the prior art, the invention has the beneficial effects that:
1. the machine adopts the inclined arm type feeding to increase the space of the area below the inclined cover body, can realize three-dimensional sewing and cylinder sewing, and has incomparable advantages of the traditional column type feeding sewing machine;
2. the main motion mechanism and the feeding mechanism are driven by gears, so that the used circumferential speed and power range are wide; the efficiency is high; the transmission ratio is stable; the service life is long; the working reliability is high;
3. the feeding and backstitch can be realized by adopting a single structure, and the feeding and backstitch can be electrified when needed, so that the feeding and backstitch machine is simple and effective;
4. the feeding wheel can be adjusted up and down, so that the distance between the feeding wheel and the upper feeding mechanism is adjusted, the sewing of thicker products is realized, and the application range is enhanced.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a schematic diagram of the connection relationship of a feed wheel adjusting mechanism;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the internal structure of the second embodiment of the present invention;
FIG. 4 is a schematic diagram of the operation of the primary motion mechanism of the present invention;
FIG. 5 is a schematic diagram of the operation of the feeding mechanism of the present invention;
FIG. 6 is a schematic diagram of the whole structure of the present invention;
FIG. 7 is a schematic diagram of the relationship between the adjustment motion trajectories of the feed wheel adjustment mechanism;
FIG. 8 is a schematic diagram of a cover structure of a feed wheel adjusting mechanism;
in the figure: 1-a workbench; 2-an upper housing; 3-a main transmission motor; 4-a feeding mechanism; 5-a take-up lever mechanism; 6-pulley one; 7-a belt pulley II; 8-belt one; 9-a first rotating shaft; 10-a first bevel gear; 11-a vertical rotating shaft; 12-a second bevel gear; 13-a third bevel gear; 14-belt pulley III; 15-pulley IV; 16-a second belt; 17-a bevel gear IV; 18-universal joint I; 19-rotating shuttle; 20-a second rotating shaft; 21-a crankshaft; 22-pull rod I; 23-a second pull rod; 24-uni-directional pelargin; 25-a bevel gear five; 26-a bevel gear six; 27-gear one; 28-a third rotating shaft; 29-gear two; 30-gear three; 31-a fourth rotating shaft; 32-gear IV; 33-gear five; 34-gear six; 35-gear seven; 36-a universal joint II; 37-a fifth rotating shaft; 38-a feeding wheel adjusting mechanism; 39-a lower housing; 40-positioning ring; 41-a box body; 42-gear cover; 43-oblique cover body; 44-bearing one; 45-a second bearing; 46-universal joint III; 47-universal joint IV; 48-pulley five; 49-a belt pulley six; 50-a third pull rod; 51-vertical bar; 52-lifting a presser foot electromagnet; 53-vertical axis; 54-shaft sleeve; 55-an elongate slideway; 56-rotating rod; 57-a lower feeding backstitch electromagnet; 58-ejector rod; 59-bevel gear seven; 60-a cover body; 61-a driving wheel; 62-driven wheel; 63-a feeding wheel; 64-positioning a first rod; 65-positioning rod II; 66-locating pins; 67-vertical sliding grooves; 68-swinging rod.
The specific embodiment is as follows:
for the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediary, or connected by communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
1-8, a sewing machine comprises a workbench 1, wherein the workbench supports a main transmission motor 3 through an upper shell 2, an upper feeding mechanism 4 and a thread take-up lever mechanism 5 are arranged at the front end of the upper shell, a belt pulley I6 is arranged at the front end of the main transmission motor, a belt pulley II 7 is arranged below the workbench, the belt pulley I is connected with the belt pulley II through a belt I8, the belt pulley II is connected with a rotating shaft I9, and the rotating shaft I controls a main motion mechanism and the feeding mechanism; the main motion mechanism comprises a bevel gear I at the front end of a rotating shaft I, the bevel gear I drives a belt pulley through a meshing gear, and a universal connector I controlled by the belt pulley is connected with a rotating shuttle through a rotating shaft II; the feeding mechanism comprises a crankshaft in the middle section of a first rotating shaft, the crankshaft is connected to a swinging rod through a first pull rod, a second pull rod is arranged at the front end of the swinging rod, the second pull rod pulls the unidirectional pezium, a bevel gear five is arranged at the upper end of the unidirectional pezium, a universal connector two is controlled by the bevel gear five through a meshing gear, the universal connector two is connected with a feeding wheel adjusting mechanism through a second rotating shaft five, and the second rotating shaft five are obliquely arranged upwards.
Specific:
the main motion mechanism comprises a first bevel gear 10 at the front end of a first rotating shaft, a vertical rotating shaft 11 is arranged on a workbench, a second bevel gear 12 is arranged at the lower end of the vertical rotating shaft, the first bevel gear is meshed with the second bevel gear, a third bevel gear 13 is arranged at the upper end of the vertical rotating shaft, the main motion mechanism further comprises a third belt pulley 14 and a fourth belt pulley 15, the third belt pulley and the fourth belt pulley are connected through a second belt 16, a shaft is arranged in the middle of the third belt pulley, a fourth bevel gear 17 is arranged on the shaft, the fourth bevel gear is meshed with the third bevel gear, a shaft is arranged in the middle of the fourth belt pulley, a first universal connector 18 is connected with the shaft, the main motion mechanism further comprises a rotating shuttle 19, and the rotating shuttle is connected with the first universal connector through a second rotating shaft 20;
the feeding mechanism comprises a crankshaft 21 at the middle section of a first rotating shaft, the crankshaft is connected to a swinging rod 68 through a first pull rod 22, a second pull rod 23 is arranged at the front end of the swinging rod, a unidirectional pelin 24 is pulled by the second pull rod, a bevel gear five 25 is arranged at the upper end of the unidirectional pelin, the feeding mechanism further comprises a bevel gear six 26, a gear one 27 is arranged at one end of a shaft of the positioning bevel gear six, a gear two 29 sleeved on a third rotating shaft 28 is connected to the gear one, a gear three 30 is further arranged on the third rotating shaft, a gear four 32 at one end of a fourth rotating shaft 31 is connected to the third connecting sleeve, a gear five 33 is arranged at the other end of the fourth rotating shaft, the gear five is connected with a gear seven 35 through a gear six 34, a positioning shaft of the gear seven is connected with a universal connector two 36, and the universal connector is connected with a feeding wheel adjusting mechanism 38 through a rotating shaft five 37;
the workbench is provided with a lower shell 39, two ends of a rotating shaft are positioned on the side wall of the lower shell, a positioning ring 40 is arranged in the middle section of the vertical shaft and fixed on the wall of the lower shell, the upper end of the vertical shaft is inserted into the workbench, a box 41 is arranged outside the unidirectional peylinder and clamped in a groove of the inner wall of the lower shell, two ends of a shaft of a positioning bevel gear six are positioned on the side wall of the lower shell, three ends of the rotating shaft are positioned on the side wall of the lower shell, four rotating shaft are positioned on the side wall of the lower shell, a positioning ring is sleeved on the three upper belt pulleys and is embedded on the side wall of the lower shell, six gears are sleeved on the shaft of the side wall of the lower shell, a gear cover 42 is arranged on the workbench surface, two ends of a positioning shaft of a gear seven are positioned on the side wall of the gear cover, four belt pulleys are provided with positioning rings which are embedded on the side wall of the gear cover, the side wall of the lower shell is provided with an arc track groove, and two ends of a swinging rod are clamped in the arc track groove;
the gear cover outside be equipped with slant cover body 43, the slant cover body covers pivot two and pivot five, and slant cover body top is equipped with two holes, is equipped with bearing one 44 and bearing two 45 respectively in the hole, pivot two other end location in the bearing one on slant cover body top, the rotating shuttle pass bearing one through universal joint three 46 and be connected with pivot two, pivot five other ends location in the bearing two on slant cover body top, the feed wheel guiding mechanism pass bearing two through universal joint four 47 and be connected with pivot five.
The belt transmission between the belt pulley I and the belt pulley II is divided into two parts, the belt pulley I and the belt pulley V48 are synchronously transmitted through the belt, the belt pulley II and the belt pulley V49 are synchronously transmitted through the belt, the belt pulley V and the belt pulley V are sleeved on the same shaft, bearings are arranged at two ends of the shaft, and the bearings are embedded in the upper shell.
The first pull rod is provided with a branch pull rod III 50, the pull rod III is connected with a vertical rod 51, the vertical rod is connected with one end of the pull rod on a shaft for controlling the upper feeding mechanism, the middle section of the pull rod is fixed in the upper shell, the shaft of the upper feeding mechanism and the swinging shaft of the feeding mechanism are the same in principle, and the movement of the upper feeding mechanism is controlled through gears and unidirectional peylines.
The lower shell in be equipped with and lift presser foot electro-magnet 52, the workstation on insert vertical axle 53, vertical axle bottom location is in the axle sleeve 54 on lower shells inner wall, the axle sleeve lateral wall is equipped with long slide 55, the bull stick 56 passes behind the long slide of axle sleeve and connects on vertical axle, the bull stick is connected with lift presser foot electro-magnet, vertical axle top is fixed in the upper shell, the top still overlaps simultaneously has the cam, is equipped with the stay cord on the cam, stay cord control take-up lever mechanism, lift presser foot electro-magnet under the unenergization state, lift the telescopic link of presser foot electro-magnet front end and withdraw, lift the telescopic link of presser foot electro-magnet front end under the energization state and stretch out, the bull stick moves around long slide, when moving, drives vertical axle rotation.
The lower shell is internally provided with a lower feeding backstitch electromagnet 57, the lower shell is internally provided with a positioning rod, the positioning rod is sleeved with a push rod 58, one end of the push rod is connected with the lower feeding backstitch electromagnet in an electrified mode, the other end of the push rod is hinged to one side of the box body, a groove for placing the box body is a sliding groove, the whole box body is a sliding block, a bevel gear seven 59 is further arranged on a shaft of the positioning bevel gear six, the bevel gear seven is opposite to the bevel gear six in a tooth opening, the bevel gear seven is positioned at the other end of the shaft of the positioning bevel gear six, the box body is jacked up by the push rod, the bevel gear five is meshed with the bevel gear seven after being separated from the bevel gear six, the telescopic rod at the front end of the lower feeding backstitch electromagnet is retracted, the bevel gear five is meshed with the bevel gear six in an electrified state, the telescopic rod at the front end of the lower feeding backstitch electromagnet stretches out, the push rod is jackrod is jacked to rotate around the positioning rod, the other end of the push rod pushes the sliding block to slide, and the bevel gear five is meshed with the bevel gear seven after being separated from the bevel gear six.
The feeding wheel adjusting mechanism is covered with a cover body 60, the cover body is connected with the inclined cover body, the cover body simultaneously wraps the rotating shuttle, an opening is formed in the upper end of the cover body, and the feeding wheel adjusting mechanism and the rotating shuttle extend out of the opening surface.
The feeding wheel adjusting mechanism comprises a driving wheel 61, a driven wheel 62 and a feeding wheel 63, wherein the driving wheel is fixed on a universal joint III, one end of the universal joint III is connected with a rotating shaft five, the rotation is controlled by the rotating shaft five, the driven wheel is totally two, the driven wheel is fixed at two ends of a shaft, the driven wheel at one end of the shaft is meshed with the driving wheel, the driven wheel at the other end of the shaft is meshed with the feeding wheel, a bearing is sleeved on the shaft, two positioning rings are arranged on the bearing, one positioning ring is internally provided with a positioning rod I64, one end of the positioning rod I is inserted into the other end of the universal joint III, the other end of the positioning rod I is inserted into the inner wall of the cover body, an annular hole of the other positioning ring is arc-shaped, a positioning rod II 65 is inserted into the annular hole of the arc-shaped, the positioning rod II is fixed on the inner wall of the cover body, the side wall of the feeding wheel is provided with the positioning ring, the positioning ring is provided with a plurality of positioning pins 66, and the side wall of the cover body is provided with a plurality of vertical sliding grooves 67, and the positioning pins are clamped in the vertical sliding grooves.
The working principle is as follows:
the machine is powered by a main transmission motor, and realizes the rotation motion of the rotating shuttle, the simultaneous feeding of the upper and lower feeding mechanisms, the coordinated linkage of the needle and the thread take-up lever through an intermediate transmission mechanism. The automatic presser foot lifting function is achieved by the control of the presser foot lifting electromagnet. The backstitch is controlled by a lower feeding backstitch electromagnet.
The method comprises the following steps: the main transmission motor drives the belt pulley II to rotate through the belt pulley I, the rotating shaft I connected with the belt pulley II rotates to drive the bevel gear I to rotate, the belt pulley III is driven to rotate through the bevel gear II and the bevel gear III, the belt pulley IV is driven to rotate through the belt II, the shaft connected with the belt pulley IV drives the universal joint I to rotate when the belt pulley IV rotates, the rotating shaft II is controlled to rotate, and the universal joint III at the other end of the rotating shaft II controls the rotating shuttle to rotate;
the first rotating shaft rotates and controls the swinging rod to swing up and down through the crankshaft and the first pull rod, the second pull rod at the front end of the swinging rod pulls the unidirectional bearing Lin Shanxiang to intermittently rotate, the unidirectional bearing bevel gear five drives the bevel gear six to intermittently rotate, so that the positioning shafts of the first gear, the second gear, the third gear, the fourth gear, the fifth gear, the sixth gear and the seventh gear are controlled to be connected with the universal joint two, the universal joint two drives the rotating shaft five to rotate, and the universal joint four at the other end of the rotating shaft five controls the feeding wheel adjusting mechanism to intermittently rotate, and the feeding effect is achieved;
the first pull rod is provided with a branch pull rod III which is connected with a vertical rod, the vertical rod is connected with the pull rod on the shaft for controlling the upper feeding mechanism, the first pull rod reciprocates while the feeding wheel adjusting mechanism feeds, and the third pull rod is driven to reciprocate in the same way, so that the shaft of the upper feeding mechanism is pulled to swing around the shaft of the upper feeding mechanism of the cam, and the principle is the same as that of a swinging shaft of the feeding mechanism, and the movement of the upper feeding mechanism is controlled through a gear and a unidirectional pelargon;
meanwhile, a bevel gear seven is correspondingly arranged on the shaft of the bevel gear six, the push rod is controlled by the lower feeding backstitch electromagnet to push the box body, the box body moves in the chute, the gear five is meshed with the bevel gear seven after being separated from the bevel gear six, and the gear one can rotate bidirectionally by changing the meshing of the gear five, the bevel gear six and the bevel gear seven. Then other intermediate gears and universal connectors drive the feeding wheels to rotate forward and backward so as to achieve the feeding effect;
the electromagnet for lifting the presser foot controls the rotating rod to rotate, so that the vertical shaft is driven to rotate, and then, the cam at the top end of the vertical shaft rotates, and the cam pulls the stay rope to control the thread take-up lever mechanism;
the universal connector III controls the driving wheel to rotate, the driving wheel drives the driven wheel to rotate, then the feeding wheel is controlled to rotate for feeding, the first positioning rod and the second positioning rod exist, the shaft of the driven wheel swings around the first positioning rod as the center, the swinging radian is the arc annular hole radian of the other positioning ring, the driving wheel is different from the feeding wheel in number of teeth, the circumference is different, after the shaft of the driven wheel deviates, the driven wheel is driven to deviate, the circle center distance between the driven wheel and the feeding wheel is changed, and the feeding wheel moves upwards or slides downwards to finish adjustment.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a sewing machine feed wheel guiding mechanism, feed wheel guiding mechanism dustcoat has the cover body, its characterized in that: the feeding wheel adjusting mechanism comprises a driving wheel, driven wheels and a feeding wheel, wherein the driving wheel is fixed on a universal joint four, one end of the universal joint four is connected with a rotating shaft five, the rotation is controlled by the rotating shaft five, the driven wheels are fixed at two ends of a shaft, the driven wheels at one end of the shaft are meshed with the driving wheel, the driven wheels at the other end of the shaft are meshed with the feeding wheel, a bearing is sleeved on the shaft, two positioning rings are arranged on the bearing, one positioning ring is internally provided with a positioning rod I, one end of the positioning rod I is inserted into the other end of the universal joint four, the other end of the positioning rod I is inserted into the inner wall of a cover body, an annular hole of the other positioning ring is arc-shaped, a positioning rod II is inserted into the annular hole of the arc, the positioning rod II is fixed on the inner wall of the cover body, the side wall of the feeding wheel is provided with a positioning ring, the side wall of the cover body is provided with a plurality of vertical sliding grooves, and the positioning pins are clamped in the vertical sliding grooves;
the sewing machine with the matching adjusting mechanism comprises a workbench, wherein the workbench supports a main transmission motor through an upper shell, an upper feeding mechanism and a thread take-up lever mechanism are arranged at the front end of the upper shell, a belt pulley I is arranged at the front end of the main transmission motor, a belt pulley II is arranged below the workbench, the belt pulley I is connected with the belt pulley II through a belt I, the belt pulley II is connected with a rotating shaft I, the rotating shaft I controls a main motion mechanism and the feeding mechanism, the main motion mechanism comprises a bevel gear I at the front end of the rotating shaft I, the bevel gear I drives the belt pulley through a meshing gear, and a universal connector I controlled by the belt pulley is connected with a rotating shuttle through the rotating shaft II; the feeding mechanism comprises a crankshaft at the middle section of a first rotating shaft, the crankshaft is connected to a swinging rod through a first pull rod, a second pull rod is arranged at the front end of the swinging rod, the second pull rod pulls the unidirectional peyline, a bevel gear five is arranged at the upper end of the unidirectional peyline, the bevel gear five controls a universal connector II through a meshing gear, the universal connector II is connected with a feeding wheel adjusting mechanism through a second rotating shaft five, and the second rotating shaft and the fifth rotating shaft are obliquely arranged upwards;
the main motion mechanism comprises a workbench, a vertical rotating shaft is arranged on the workbench, a bevel gear II is arranged at the lower end of the vertical rotating shaft, the bevel gear I is meshed with the bevel gear II, a bevel gear III is arranged at the upper end of the vertical rotating shaft, the main motion mechanism further comprises a belt pulley III and a belt pulley IV which are connected through a belt II, a shaft is arranged in the middle of the belt pulley III, the bevel gear IV is arranged on the shaft, the bevel gear IV is meshed with the bevel gear III, a shaft is arranged in the middle of the belt pulley IV, the shaft is connected with a universal connector I, and the main motion mechanism further comprises a rotating shuttle which is connected with the universal connector I through the rotating shaft II;
the feeding mechanism further comprises a bevel gear six, a gear one is arranged at one end of a shaft of the positioning bevel gear six, a gear two is connected to the gear one is sleeved on a rotating shaft three, a gear three is further arranged on the rotating shaft three, a gear four is connected to a connecting sleeve of the gear three at one end of a rotating shaft four, a gear five is arranged at the other end of the rotating shaft four, the gear five is connected with a gear seven through the gear six, and a positioning shaft of the gear seven is connected with a universal connector two;
the workbench is provided with a lower shell, two ends of a rotating shaft are positioned on the side wall of the lower shell, a vertical shaft is inserted into the workbench, a positioning ring is arranged in the middle section of the vertical shaft and fixed on the wall of the lower shell, the upper end of the vertical shaft is inserted into the workbench, a box body is arranged outside the unidirectional peyline and clamped in a groove of the inner wall of the lower shell, two ends of a shaft of a positioning bevel gear six are positioned on the side wall of the lower shell, three ends of the rotating shaft are positioned on the side wall of the lower shell, four rotating shafts are positioned on the side wall of the lower shell, a positioning ring is sleeved on the belt pulley three, the positioning ring is embedded on the side wall of the lower shell, six gears are sleeved on the shaft of the side wall of the lower shell, a gear cover is arranged on the workbench surface, two ends of the positioning shaft of a gear seven are positioned on the side wall of the gear cover, the belt pulley four is provided with a positioning ring which is embedded on the side wall of the gear cover, the side wall of the lower shell is provided with an arc track groove, and two ends of a swinging rod are clamped in the arc track groove;
the gear cover outside be equipped with the slant cover body, the slant cover body covers pivot two and pivot five, and the slant cover body top is equipped with two holes, is equipped with bearing one and bearing two respectively in the hole, pivot two other end location in bearing one on slant cover body top, the rotating shuttle pass bearing one through universal joint three and be connected with pivot two, pivot five other ends location in bearing two on slant cover body top, the feed wheel guiding mechanism pass bearing two through universal joint four and be connected with pivot five.
2. A feed wheel adjustment mechanism for a sewing machine as defined in claim 1, wherein: the cover body is connected with the inclined cover body, the cover body wraps the rotating shuttle at the same time, an opening is formed in the upper end of the cover body, and the feeding wheel adjusting mechanism and the rotating shuttle extend out of the opening surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810523719.1A CN108532135B (en) | 2018-05-28 | 2018-05-28 | Feeding wheel adjusting mechanism of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523719.1A CN108532135B (en) | 2018-05-28 | 2018-05-28 | Feeding wheel adjusting mechanism of sewing machine |
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| CN108532135A CN108532135A (en) | 2018-09-14 |
| CN108532135B true CN108532135B (en) | 2023-11-24 |
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|---|---|
| CN108532135A (en) | 2018-09-14 |
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