CN201924162U - Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction - Google Patents
Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction Download PDFInfo
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- CN201924162U CN201924162U CN2010206560235U CN201020656023U CN201924162U CN 201924162 U CN201924162 U CN 201924162U CN 2010206560235 U CN2010206560235 U CN 2010206560235U CN 201020656023 U CN201020656023 U CN 201020656023U CN 201924162 U CN201924162 U CN 201924162U
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Abstract
The utility model relates to a sewing machine switching control mechanism capable of synchronously controlling the rotation directions of feeding wheels and the needle feeding direction. The switching control mechanism comprises a shifting rod, a lower switching mechanism and an upper switching mechanism, and adopts the main principle that unidirectional bearing groups in the lower switching mechanism and the upper switching mechanism are utilized for the switching of the rotation directions. When a user presses the shifting rod from the outside of a sewing machine with an external force, the shifting lever synchronously drives a lower pressure rod piece in the lower switching mechanism and an upper pressure rod piece in the upper switching mechanism to respectively press a lower rotating shaft and an upper rotating shaft, so that an upper reverse ball in the upper switching mechanism and a lower reverse ball in the lower switching mechanism are respectively in contact with an upper bulged part of the upper rotating shaft and a lower bulged part of the lower rotating shaft. Therefore, the forward rotation of a lower feeding wheel and an upper feeding wheel is switched to the reverse rotation, and the needle feeding direction is changed with such switching in a matched manner, that is, the forward stitch needle feeding is changed into the backstitch needle feeding; and otherwise, the reverse rotation can be switched back to the forward rotation, and the needle feeding direction is changed accordingly. Therefore, the rotation directions of the upper feeding wheel and the lower feeding wheel can be efficiently and rapidly switched, and the needling feeding direction can be synchronously controlled.
Description
Technical field
The utility model turns to about a kind of Sewing machines Synchronization Control drawing-inroller and pin send the switching controls mechanism of direction, refers to especially to be applied in the Sewing machines that drawing-inroller on the Synchronization Control turns to following drawing-inroller and pin send the switching controls mechanism of direction.
Background technology
The function that Sewing machines is served as sewing gives to greatly facilitate in daily life and the industry use, can utilize the suture will be ... to wait for that the seam thing makes, make clothing, advertisement canvas, leather shoes, coverlet, scarf, tent ... wait various articles for use as cloth fabric, Polypropylence Sheet, leather goods.
Wait to stitch thing and move forward or backward for auxiliary, thing to be stitched is made, can utilize the mutual cramping propelling movement of drawing-inroller and following drawing-inroller thing to be stitched, make needle bar can make thing to be stitched smoothly to make things convenient for needle bar.
Sewing machines has the function of just stitching and backstitching in response to operator's demand, and just stitching is to be to wait that stitching thing pushes backward with waiting that stitching thing pushes forward, backstitching; Because last drawing-inroller is to attach with wheel face to wait to stitch the upper and lower surface of thing with following drawing-inroller, so rotate and control the rotation direction of drawing-inroller and following drawing-inroller synchronously, just can push thing to be stitched with correct direction; For example upper and lower drawing-inroller is just just transferring to and stitching, and upper and lower drawing-inroller reverses to backstitching.
Because very narrow and small, and need the work that complicated mechanism finishes drawing-inroller and following drawing-inroller in the synchronous rotation, so mechanism is firm, manufacturing cost is inexpensive, work is smooth and easy, mechanism's volume is little ... all be the main points of necessary consideration in the Sewing machines volume inside.
Generally speaking, the needle bar of Sewing machines is vertical upper and lower to motion, so that the suture puncture is entered thing to be stitched.Only the Sewing machines of the positive joint function of tool also advances the effect that rank can cooperate pin to send, and when needle bar sewing is just waited to stitch thing, can cooperate the translation do swing a little of waiting to stitch thing, makes things convenient for drawn needle, also is convenient to quicken the whole running of sewing.So, having the Sewing machines that pin send function, pin send direction to cooperate with turning to of drawing-inroller, and drawing-inroller is just just transferring to and stitching, and needs positive suture needle to send; If drawing-inroller reverses to backstitching, promptly need to backstitch pin and send.
Therefore, main purpose of the present utility model is to provide a kind of and utilizes Sewing machines Synchronization Control drawing-inroller to turn to and pin send the switching controls mechanism of direction, to improve the problems referred to above.
The utility model content
The purpose of this utility model is to provide a kind of Sewing machines Synchronization Control drawing-inroller to turn to and pin send the switching controls mechanism of direction, can come the switching that drawing-inroller and following drawing-inroller turn on the smooth operation with the mechanism of firm and small size, and easy to manufacture, material and assembling cost of labor are lower, and the reliability of work is also higher.
The utility model provides a kind of Sewing machines Synchronization Control drawing-inroller to turn to and pin send the switching controls mechanism of direction, this switching controls mechanism also can cooperate this on turning to control pin of drawing-inroller and this time drawing-inroller to send direction, should go up drawing-inroller and this time drawing-inroller is to attach a thing to be stitched with wheel face, should go up drawing-inroller and this time drawing-inroller rotates synchronously to push this thing to be stitched, this Sewing machines more comprises a pin bucket seat, an and pin bucket seat power transmission shaft, this pin bucket seat is in order to install a needle bar, this needle bar is in order to this thing to be stitched of sewing, this pin bucket seat power transmission shaft connects this pin bucket seat, this pin bucket seat power transmission shaft rotates and drives this pin bucket seat beat, send so that this needle bar waits to stitch the thing pin to this.This switching controls mechanism comprises a driving lever, once a switching mechanism and a pin send switching device shifter on the switching mechanism.
This driving lever installing also exposes to this Sewing machines outside.
This time switching mechanism connects this driving lever and is arranged at this Sewing machines inside, in order to turning to of this time of switching controls drawing-inroller, this time switching mechanism comprises connection rod set, once Strut Part, a lower rotary shaft, once unidirectional Bearing group, once line shaft and dynamic link once.
One end of this lower link group is connected in this driving lever.This end that presses down rod member is connected in this lower link group and differs from the other end that connects this driving lever.
One terminal this time drawing-inroller that connects of this lower rotary shaft, another end is pressed down rod member by this and differs from the other end that connects this lower link group and press and touch, and this lower rotary shaft rotates and makes the rotation of this time drawing-inroller correspondence, and the axial plane of this lower rotary shaft has jut.
The unidirectional Bearing group of this time is socketed on this lower rotary shaft, the unidirectional Bearing group of this time comprises just changeing Bearing once and reversing Bearing once of adjoining each other, this time just changeed contiguous this lower rotary shaft inboard of Bearing and had at least one positive ball down, and this time reverses contiguous this lower rotary shaft inboard of Bearing and have at least one subinverse ball.
This time line shaft is subjected to drive power source and rotates, and this time dynamic link is connected in this time line shaft and the unidirectional Bearing group of this time, be subjected to the rotation of this time line shaft and back and forth the unidirectional Bearing group of this time of driving back and forth rotate.
Wherein, when being subjected to this, this lower rotary shaft do not press down rod member when pressing, the positive ball of this lower process portion this time of contact, the unidirectional Bearing group of this time in back and forth rotating following just changeing Bearing and driving this lower rotary shaft and just change, when being subjected to this, this lower rotary shaft presses down rod member when pressing, this lower rotary shaft moves and makes this lower process portion contact this subinverse ball, and the following reverse Bearing of the unidirectional Bearing group of this time in back and forth rotating drives this lower rotary shaft and reverses.
This last switching mechanism connects this driving lever and is arranged at this Sewing machines inside, should go up turning to of drawing-inroller in order to switching controls, switching mechanism comprises on connection rod set on, the upperpush rod spare, in the rotating shaft, on the unidirectional Bearing group, a dynamic link on the line shaft and on this.
The end that should go up connection rod set is connected in this driving lever.One end of this upperpush rod spare is connected in connection rod set on this and differs from the other end that connects this driving lever.Should go up terminal a connection of rotating shaft and should go up drawing-inroller, another end is differed from by this upperpush rod spare and connects this other end of going up connection rod set and press and touch, and rotating shaft is rotated and made drawing-inroller correspondence rotation on this this on, and axial plane of rotating shaft has a upper process portion on this.
Should go up unidirectional Bearing group and be socketed on rotating shaft on this, should go up unidirectional Bearing group comprise adjoin each other one on just changeing on Bearing and one and reversing Bearing, just changeing the contiguous rotating shaft inboard of should going up of Bearing on being somebody's turn to do and having at least one positive ball of, contiguous rotating shaft inboard of should going up of reverse Bearing has at least one superinverse ball on this.
Upward line shaft is subjected to drive power source and rotates.Should go up dynamic link and be connected in this on line shaft and should go up unidirectional Bearing group, and rotated by line shaft and drive back and forth and be somebody's turn to do upward unidirectional Bearing group and back and forth rotate.
Wherein, when rotating shaft on this is not pressed by this upperpush rod spare, this upper process portion contact should be gone up positive ball, in back and forth rotating should go up unidirectional Bearing group on just changeing Bearing and drive and should go up rotating shaft and just change, when rotating shaft on this is pressed by this upperpush rod spare, upward rotating shaft is moved and is made this upper process portion contact this superinverse ball, and the upward reverse Bearing driving that should go up unidirectional Bearing group in the reciprocal rotation should be gone up rotating shaft and be reversed.
This pin send switching device shifter to connect this driving lever and is arranged at this Sewing machines inside, send direction in order to the pin of this needle bar of switching controls, comprises a driving member, a slide block, a projection and an impeller.
This driving member is with the stage casing line shaft on this that is coupling, and an end of this driving member is a connection rib, and the other end of this driving member is a casket groove, and this connection rib is subjected to drive power source and this casket groove is moved.
This slide block has an eccentric grove, and is outside and have one and connect son, and this slide block is socketed on line shaft this on this eccentric grove, makes line shaft this on can be positioned at the position of opposite end in this eccentric grove, and this connects sub-cooperation and is active in this casket groove.
This projection is socketed on the outside of this slide block should go up line shaft to coat, and an end of this projection is coupling in this pin bucket seat power transmission shaft.
This impeller is adjacent to this projection, drives this slide block and moves in order to push this projection, makes that line shaft can be displaced in this eccentric grove between relative two positions on this.
When this connection rib is promoted, make this casket groove slide on this and connect the son outside, drive this projection and should go up the line shaft swing relatively, and making that line shaft moves back and forth between relative two positions on this, relative two positions that original position of line shaft is positioned at this eccentric grove on this can make this pin bucket seat power transmission shaft drive this needle bar respectively and send the direction motion with different two pins.
When external force as yet not when this Sewing machines outside presses this driving lever, this upperpush rod spare presses down rod member with this and does not press rotating shaft and this lower rotary shaft on this respectively, make that positive ball contacts this upper process portion and this lower process portion respectively with the positive ball of this time on this, drawing-inroller and this time drawing-inroller all just change on this and make, and controlling pin simultaneously, to send direction be that positive suture needle is sent; When external force when this Sewing machines outside presses this driving lever, this upperpush rod spare presses down rod member with this and presses rotating shaft and this lower rotary shaft on this respectively, make this superinverse ball and this subinverse ball contact this upper process portion and this lower process portion respectively, drawing-inroller and this time drawing-inroller all reverse on this and make, and are controlled to be another pin simultaneously and send direction to send for backstitching pin.
Therefore, according to switching controls of the present utility model mechanism, be used for Sewing machines, unidirectional Bearing group and the collocation of unidirectional Bearing group down in the utilization, use the switching controls mechanism that drawing-inroller and following drawing-inroller turn on the Synchronization Control, and can come the switching that drawing-inroller and following drawing-inroller turn on the smooth operation with the mechanism of firm and small size, and easy to manufacture, material and assembling cost of labor are lower, and the reliability of work is also higher.In addition, utilize pin to send switching device shifter, the pin that reaches needle bar that turns to that can be synchronized with drawing-inroller and following drawing-inroller send direction to switch.
Can describe in detail and appended graphic being further understood by following utility model about advantage of the present utility model and spirit.
Description of drawings
Fig. 1 is the schematic appearance of Sewing machines in the utility model;
Fig. 2 is the schematic diagram of the utility model switching controls mechanism;
Fig. 3 does not push the preceding following switching mechanism schematic diagram of driving lever for the utility model;
Fig. 4 is lower link group and the schematic diagram that presses down rod member;
Fig. 5 is the schematic appearance of following unidirectional Bearing group and lower rotary shaft;
Fig. 6 for following unidirectional Bearing group, lower rotary shaft, with the side diagrammatic sketch of following dynamic link;
Fig. 7 is the generalized section of following unidirectional Bearing group and lower rotary shaft;
Fig. 8 presses down the schematic diagram that rod member presses lower rotary shaft for Fig. 3;
Fig. 9 is the schematic diagram that lower rotary shaft moves in following unidirectional Bearing group;
Figure 10 is the schematic diagram of switching mechanism on the utility model;
Figure 11 cuts open schematic diagram for unidirectional Bearing group is not gone up in last rotating shaft before pressing side;
Figure 12 cuts open schematic diagram for unidirectional Bearing group is gone up in last rotating shaft after being pressed side;
Figure 13 send the schematic diagram of disassembling of switching device shifter for the utility model pin;
Figure 14 makes the feeding driving shaft be in the schematic diagram of primary importance for the utility model pin send switching device shifter;
Figure 15 send schematic diagram for the positive suture needle that cooperates primary importance;
Figure 16 makes the feeding driving shaft be in the schematic diagram of the second place for the utility model pin send switching device shifter; And
Figure 17 send schematic diagram for the pin that backstitches that cooperates the second place.
The primary clustering symbol description
Sewing machines 10 needle bars 86
12 times drawing-inrollers 18 of last drawing-inroller
44 times unidirectional Bearing groups 45 of lower rotary shaft
46 times dynamic links 48 of following line shaft
Just change Bearing down and reversing Bearing 52 50 times
54 times positive balls 56 of lower process portion
Connection rod set 61 on the subinverse ball 58
Go up line shaft 66 on the unidirectional Bearing group 65
Last dynamic link 68 universal joints 69
Just changeing Bearing 70 in the upper process portion 74
Pin send switching device shifter 20 driving members 22
Just backstitching switching shaft 90 connection ribs 21
Connect sub 27 pin bucket seat power transmission shafts 85
The auxiliary casket groove 94 auxiliary sons 92 that connect
The specific embodiment
See also Fig. 1, Fig. 1 is the schematic appearance of Sewing machines 10 in the utility model.Visible among the figure in order to make the needle bar 86 of waiting to stitch thing, line can be worn and stitch thing to be stitched, so that thing to be stitched is sewn into finished product.In the process of making, for stable thing to be stitched (figure does not show) pushes forward or backward, visible Sewing machines 10 has last drawing-inroller 12 and following drawing-inroller 18 among the figure, and last drawing-inroller 12 wait to stitch also corresponding rotation of thing with the synchronous cramping of following drawing-inroller 18 energy, uses propelling movement thing to be stitched and cooperates needle bar 86 to make.In Sewing machines 10 can see driving lever 16 of the present utility model in appearance, driving lever 16 installings also expose to Sewing machines 10 outsides, stir control for operating personnel, after function is specified in.
Cooperate Fig. 1 to see also Fig. 2, Fig. 2 is the schematic diagram of the utility model switching controls mechanism 30.The utility model about a kind of in Sewing machines 10 on the Synchronization Control drawing-inroller 12 turn to following drawing-inroller 18 and energy Synchronization Control pin send the switching controls mechanism 30 of direction, last drawing-inroller 12 is to attach a thing to be stitched with wheel face with following drawing-inroller 18 as described above, and last drawing-inroller 12 rotates to push this thing to be stitched synchronously with following drawing-inroller 18.Switching controls mechanism 30 mainly comprises aforesaid driving lever 16, switching mechanism 34 on the switching mechanism 32 and once.
Cooperate Fig. 2 to see also Fig. 3, Fig. 3 is following switching mechanism 32 schematic diagrames before the utility model is not pushed driving lever 16.Following switching mechanism 32 connects driving lever 16 and is arranged at Sewing machines 10 inside, in order to turning to of drawing-inroller under the switching controls 18, following switching mechanism 32 comprises connection rod set 41, once Strut Part 42, a lower rotary shaft 44, once unidirectional Bearing group 45, once line shaft 46 and dynamic link 48 once.
Cooperate Fig. 3 to see also Fig. 4, Fig. 4 is lower link group 41 and the schematic diagram that presses down rod member 42.One end of lower link group 41 is connected in driving lever 16, and driving lever 16 extends to Fig. 3,4 and do not show in Fig. 3,4 outward.An end that presses down rod member 42 is connected in lower link group 41 and differs from the other end that connects driving lever 16, stirs driving lever 16 and can affect 41 activities of lower link group, and then affect and press down rod member 42 and laterally move.
Cooperate Fig. 3 further to consult Fig. 5, Fig. 5 is the schematic appearance of down unidirectional Bearing group 45 with lower rotary shaft 44.Unidirectional Bearing group 45 is socketed on lower rotary shaft 44 down, and following unidirectional Bearing group 45 comprises just changeing Bearing 50 once and reversing Bearing 52 once of adjoining each other.The one terminal drawing-inroller 18 down that connects of lower rotary shaft 44, the crested and not showing in Fig. 3,5 of following drawing-inroller 18, another end is pressed down rod member 42 and differs from the other end that connects lower link group 41 and press and touch, instantly Strut Part 42 is affected by lower link group 41 and is horizontal when mobile, press down rod member 42 and will depress another end of rotating shaft 44, lower rotary shaft 44 is moved right.
Cooperate Fig. 3,5 further to consult Fig. 6, Fig. 6 for unidirectional Bearing group 45 down, lower rotary shaft 44, with the side diagrammatic sketch of following dynamic link 48.Following line shaft 46 is subjected to drive power source and rotates, and following dynamic link 48 is connected in down line shaft 46 and unidirectional Bearing group 45 down, rotated by line shaft 46 and under driving back and forth unidirectional Bearing group 45 back and forth rotate.
Cooperate Fig. 3 further to consult Fig. 7 again, Fig. 7 is the generalized section of down unidirectional Bearing group 45 with lower rotary shaft 44.Lower rotary shaft 44 meeting quilts line shaft 46 down drive and rotate, and lower rotary shaft 44 rotates and makes down drawing-inroller 18 correspondence rotations, and the axial plane of lower rotary shaft 44 has jut 54.Just change Bearing 50 contiguous lower rotary shafts 44 inboards down and having at least one positive ball 56 down, under reverse the contiguous lower rotary shafts of Bearing 52 44 inboards and have at least one subinverse ball 58, as shown being has 3 positive ball 56, subinverse balls 58 down respectively, and dislocation loop is located at around lower rotary shaft 44 axial planes.When lower rotary shaft 44 is pressed down rod member 42 when pressing, 54 contacts of lower process portion are positive ball 56 down, and this is just changeing Bearing 50 at present and is taking place interactive with lower rotary shaft 44; The following Bearing 50 driving lower rotary shafts 44 that just changeing of the following unidirectional Bearing group 45 in back and forth rotating are just changeing, so descend drawing-inroller 18 just to change at last thereupon.
Cooperate Fig. 3 to see also Fig. 8 and Fig. 9, Fig. 8 presses down the schematic diagram that rod member 42 presses lower rotary shaft 44 for Fig. 3.Fig. 9 is the schematic diagram that lower rotary shaft 44 moves in following unidirectional Bearing group 45.When lower rotary shaft 44 is pressed down rod member 42 when pressing, lower rotary shaft 44 moves and makes lower process portion 54 contact subinverse balls 58, just changes this moment to reverse Bearing 52 and take place interactive with lower rotary shaft 44; The following reverse Bearing 52 of the following unidirectional Bearing group 45 in back and forth rotating drives lower rotary shaft 44 and reverses, so descend drawing-inroller 18 to reverse at last thereupon.
See also Figure 10, Figure 10 is the schematic diagram of switching mechanism 34 on the utility model.Last switching mechanism 34 connects driving lever 16 and is arranged at Sewing machines 10 inside, in order to turning to of drawing-inroller on the switching controls 12; Last switching mechanism 34 comprises on one on connection rod set 61, the upperpush rod spare 62, in the rotating shaft 64, on the unidirectional Bearing group 65, a dynamic link 68 on the line shaft 66 and.
One end of last connection rod set 61 is connected in driving lever 16.One end of upperpush rod spare 62 is connected in connection rod set 61 and differs from the other end that connects driving lever 16, connection rod set 61 is affected and translation upperpush rod spare 62 so stir driving lever 16.One terminal connection of last rotating shaft 64 gone up drawing-inroller 12, and wherein, last rotating shaft 64 is to go up drawing-inroller 12 through a universal joint 69 connections to rotate to drive drawing-inroller 12.Another end of last rotating shaft 64 is differed from the other end that connect to go up connection rod set 61 by upperpush rod spare 62 and presses and touch, and last rotating shaft 64 is rotated and made drawing-inroller 12 correspondence rotations.
Cooperate Figure 10 to see also Figure 11, Figure 11 cuts open schematic diagram for the side that last rotating shaft 64 is not pressed unidirectional Bearing group 65.The axial plane of last rotating shaft 64 has a upper process portion 74.Go up unidirectional Bearing group 65 and be socketed on rotating shaft 64, go up unidirectional Bearing group 65 comprise adjoin each other one on just changeing reverse Bearing 72 on Bearing 70 and, on just changeing contiguous rotating shaft 64 inboards of going up of Bearing 70 and have at least one positive ball 76 of, last reverse Bearing 72 contiguous rotating shaft 64 inboards of going up have at least one superinverse ball 78, as shown in the figure, upward positive ball 76, subinverse ball 78 have 3 respectively, and dislocation loop is located at around rotating shaft 64 axial planes.
Wherein, when last rotating shaft 64 was not pressed by upperpush rod spare 62, positive ball 76 was gone up in upper process portion 74 contact, was just changeing Bearing 70 on the last unidirectional Bearing group 65 in back and forth rotating and was driving upward rotating shaft 64 and just changeing, and then drawing-inroller 12 is just being changeed.
Cooperate Figure 11 please further to consult Figure 12, Figure 12 cuts open schematic diagram for unidirectional Bearing group 65 is gone up in last rotating shaft 64 after being pressed side.When last rotating shaft 64 was pressed by upperpush rod spare 62, last rotating shaft 64 was moved and is made upper process portion 74 contact superinverse balls 78, and upward reverse Bearing 72 drivings of the last unidirectional Bearing group 65 in back and forth rotating are gone up rotating shaft 64 and reversed, and then drawing-inroller 12 is reversed.
So, when external force as yet not when Sewing machines 10 outsides press driving lever 16, upperpush rod spare 62 with press down rod member 42 and do not press rotating shaft 64 and lower rotary shaft 44 respectively, make positive ball 76 contact upper process portion 74 and lower process portion 54 respectively, and drawing-inroller 12 and following drawing-inroller 18 are all just being changeed with following positive ball 56.When external force when Sewing machines 10 outsides press driving lever 16, upperpush rod spare 62 with press down rod member 42 and press rotating shaft 64 and lower rotary shaft 44 respectively, make superinverse ball 78 and subinverse ball 58 contact upper process portion 74 and lower process portion 54 respectively, and drawing-inroller 12 and following drawing-inroller 18 are all reversed.
What remark additionally is, wherein go up positive ball 76, down positive ball 56, superinverse ball 78 and subinverse ball 58 have respectively and a plurality ofly (are illustrated as 3, but not as limit) and respectively ring be located at around the axial plane of rotating shaft 64 and lower rotary shaft 44, use making contact and driving that to go up rotating shaft 64 more stable with lower rotary shaft 44 meetings.
See also Figure 13, Figure 13 send the schematic diagram of disassembling of switching device shifter 20 for the utility model pin.Sewing machines 10 of the present utility model is except switching the feeding function of just stitching and backstitching, being matched with the needle bar 86 that can automatically switch when just stitching carries out positive suture needle and send, being matched with the needle bar 86 that can automatically switch when backstitching backstitches pin and send, make to have the Sewing machines 10 that just stitches and backstitch the feeding function concurrently, more can have the effect that pin send concurrently.Pin send switching device shifter 20 except comprising aforesaid driving member 22, slide block 24, projection 26, also comprises an impeller 28, and impeller 28 extends separately to be coupling in just backstitching switching shaft 90.
Driving member 22 is that the quill with the stage casing is connected to line shaft 66, and an end of driving member 22 is a connection rib 21, and the other end of driving member 22 is a casket groove 23, and connection rib 21 is subjected to drive power source and makes 23 motions of casket groove.
Wherein, when connection rib 21 is promoted, casket groove 23 is slided on connect sub 27 outsides, drive projection 26 and go up line shaft 66 swings relatively, and make line shaft 66 move back and forth in this primary importance and this second place, line shaft 66 is rotated to drive drawing-inroller 12 push this thing to be stitched.
In addition, pin send switching device shifter 20 as the aforementioned, and Sewing machines 10 more comprises a vertical shaft 80, is coupling in the connection rib 21 of driving member 22, promotes connection rib 21 in order to power to be provided; When vertical shaft 80 promotes connection rib 21, casket groove 23 is slided on connect sub 27 outsides, drive projection 26 and go up line shaft 66 swings relatively, and make line shaft 66 move back and forth in this primary importance and this second place, line shaft 66 is rotated to drive drawing-inroller 12 push this thing to be stitched.
Be connected to impeller 28 from the outside by also seeing driving lever 16 among Figure 14, driving lever 16 is convenient to the operator and is stirred control in Sewing machines 10 outsides, stirs driving lever 16 interlocks and makes impeller 28 push projections 26.
Further specify, pin send switching device shifter 20 more to comprise a spring 82, and an end of spring 82 connects impeller 28, and the other end connects the end of projection 26; When pushing projections 26, impeller 28 make line shaft 66 when this primary importance is pushed into this second place, the spring 82 generation elastic restoring force that is stretched; When impeller 28 left projection 26, spring 82 pulling projections 26 made line shaft 66 move to this primary importance from this second place.
What remark additionally is, wherein make line shaft 66 when this primary importance is pushed into this second place when impeller 28 pushes projections 26, impeller 28 also makes and is just backstitching switching shaft 90 driving arrangement of clutch 40 drawing-inroller 12 is switched to the state that this backstitches from this state that is just stitching.
Figure 15 is please further consulted in narration about primary importance, and Figure 15 makes line shaft 66 be in the schematic diagram of primary importance for the utility model pin send switching device shifter 20.So-called primary importance is the left end place that line shaft 66 is arranged in figure eccentric grove 25; When the original position of last line shaft 66 was positioned at the primary importance of eccentric grove 25, the swaying direction of then going up line shaft 66 can drive drawing-inroller 12 and just stitch, and the swaying direction of pin bucket seat power transmission shaft 85 can drive needle bar 86 and carries out this positive suture needle and send.
Cooperate Figure 14 to see also Figure 15, Figure 15 send schematic diagram for the positive suture needle that cooperates primary importance.When the original position of last line shaft 66 is positioned at the primary importance of eccentric grove 25, provide power to begin to promote by vertical shaft 80, line shaft 66 is rotated and back and forth between the primary importance and the second place, last line shaft 66 can be swung with specific direction, and drawing-inroller 12 is just being stitched in eccentric grove 25; The swaying direction that sees through pin bucket seat power transmission shaft 85 simultaneously makes pin bucket seat 84 drive needle bars 86 beats carry out this positive suture needle and send.
Narration about the second place sees also Figure 17, and Figure 17 makes line shaft 66 be in the schematic diagram of the second place for the utility model pin send switching device shifter 20.The so-called second place is the right-hand member place that line shaft 66 is arranged in figure eccentric grove 25, and the operator can stir driving lever 16 and push to the second place so that go up line shaft 66 from this primary importance; When the original position of last line shaft 66 was positioned at the second place of eccentric grove 25, the swaying direction of then going up line shaft 66 can drive drawing-inroller 12 and backstitch, and the swaying direction of pin bucket seat power transmission shaft 85 can drive needle bar 86 and carries out this and backstitch pin and send.
Cooperate Figure 16 to see also Figure 17, Figure 17 send schematic diagram for the pin that backstitches that cooperates the second place.When the original position of last line shaft 66 is positioned at the second place of eccentric grove 25, provide power to begin to promote by vertical shaft 80, line shaft 66 is rotated in eccentric grove 25 also back and forth between the second place and primary importance, last line shaft 66 can make drawing-inroller 12 backstitch with another specific direction swing by this; The swaying direction that sees through pin bucket seat power transmission shaft 85 simultaneously makes pin bucket seat 84 drive needle bars 86 beats to carry out this and backstitch pin and send.
Therefore, according to switching controls of the present utility model mechanism 30, be used for Sewing machines 10, unidirectional Bearing group 65 and the collocation of unidirectional Bearing group 45 down in the utilization, use the switching controls mechanism 30 that drawing-inroller on the Synchronization Control 12 and following drawing-inroller 18 turn to, and the switching that can come drawing-inroller on the smooth operation 12 and following drawing-inroller 18 to turn to the mechanism of firm and small size, and easy to manufacture, material and assembling cost of labor are lower, and the reliability of work is also higher.In addition, utilize pin to send switching device shifter 20, the pin of controlling needle bar 86 that turns to that can be synchronized with drawing-inroller 12 and following drawing-inroller 18 send direction.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present utility model and spirit, and be not to come category of the present utility model is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of the claim that is arranged in the desire application of the utility model institute of various changes and tool equality.
Claims (7)
1. a Sewing machines Synchronization Control drawing-inroller turns to and pin send the switching controls mechanism of direction, it is characterized in that: this switching controls mechanism also can cooperate this on turning to control pin of drawing-inroller and this time drawing-inroller to send direction, should go up drawing-inroller and this time drawing-inroller is to attach a thing to be stitched with wheel face, should go up drawing-inroller and this time drawing-inroller rotates synchronously to push this thing to be stitched, this Sewing machines more comprises a pin bucket seat, an and pin bucket seat power transmission shaft, this pin bucket seat is in order to install a needle bar, this needle bar is in order to this thing to be stitched of sewing, this pin bucket seat power transmission shaft connects this pin bucket seat, this pin bucket seat power transmission shaft rotates and drives this pin bucket seat beat, send so that this needle bar waits to stitch the thing pin to this, this switching controls mechanism comprises:
This Sewing machines outside is installed and exposed to one driving lever;
Once switching mechanism connects this driving lever and is arranged at this Sewing machines inside, in order to turning to of this time of switching controls drawing-inroller, comprises:
Connection rod set once, an end is connected in this driving lever,
Strut Part once, an end are connected in this lower link group and differ from the other end that connects this driving lever,
One lower rotary shaft, terminal this time drawing-inroller that connects, another end is pressed down rod member by this and differs from the other end that connects this lower link group and press and touch, and this lower rotary shaft rotates and makes the rotation of this time drawing-inroller correspondence, and the axial plane of this lower rotary shaft has jut,
Unidirectional once Bearing group, be socketed on this lower rotary shaft, the unidirectional Bearing group of this time comprises just changeing Bearing once and reversing Bearing once of adjoining each other, and this time just changeed contiguous this lower rotary shaft inboard of Bearing and had at least one positive ball down, this time reverses contiguous this lower rotary shaft inboard of Bearing and has at least one subinverse ball
Line shaft once is subjected to drive power source and rotates, and
Dynamic link once is connected in this time line shaft and the unidirectional Bearing group of this time, be subjected to the rotation of this time line shaft and back and forth the unidirectional Bearing group of this time of driving back and forth rotate,
Wherein, when being subjected to this, this lower rotary shaft do not press down rod member when pressing, the positive ball of this lower process portion this time of contact, the unidirectional Bearing group of this time in back and forth rotating following just changeing Bearing and driving this lower rotary shaft and just change, when being subjected to this, this lower rotary shaft presses down rod member when pressing, this lower rotary shaft moves and makes this lower process portion contact this subinverse ball, and the following reverse Bearing of the unidirectional Bearing group of this time in back and forth rotating drives this lower rotary shaft and reverses;
Switching mechanism on one connects this driving lever and is arranged at this Sewing machines inside, should go up turning to of drawing-inroller in order to switching controls, comprises:
Connection rod set on one, an end is connected in this driving lever,
One upperpush rod spare, an end are connected in connection rod set on this and differ from the other end that connects this driving lever,
Rotating shaft on one, terminal a connection should be gone up drawing-inroller, and another end is differed from by this upperpush rod spare and connects this other end of going up connection rod set and press and touch, and rotating shaft is rotated and is made drawing-inroller correspondence rotation on this this on, and axial plane of rotating shaft has a upper process portion on this,
Unidirectional Bearing group on one, be socketed on rotating shaft on this, on this unidirectional Bearing group comprise adjoin each other one on just changeing on Bearing and one and reversing Bearing, just changeing the contiguous rotating shaft inboard of should going up of Bearing on this and have at least one positive ball of, should go up the contiguous rotating shaft inboard of should going up of reverse Bearing and have at least one superinverse ball
Line shaft on one is subjected to drive power source and rotates, and
Dynamic link on one is connected on this line shaft and should goes up unidirectional Bearing group, and rotated by line shaft and drive upward unidirectional Bearing group back and forth and back and forth rotate,
Wherein, when rotating shaft on this is not pressed by this upperpush rod spare, this upper process portion contact should be gone up positive ball, in back and forth rotating should go up unidirectional Bearing group on just changeing Bearing and drive and should go up rotating shaft and just change, when rotating shaft on this is pressed by this upperpush rod spare, upward rotating shaft is moved and is made this upper process portion contact this superinverse ball, and the upward reverse Bearing driving that should go up unidirectional Bearing group in the reciprocal rotation should be gone up rotating shaft and be reversed; And
One pin send switching device shifter, connects this driving lever and is arranged at this Sewing machines inside, send direction in order to the pin of this needle bar of switching controls, comprises:
One driving member, with the stage casing line shaft on this that is coupling, an end of this driving member is a connection rib, and the other end of this driving member is a casket groove, and this connection rib is subjected to drive power source and this casket groove is moved,
One slide block has an eccentric grove, and is outside and have one and connect son, and this slide block is socketed on line shaft this on this eccentric grove, makes line shaft this on can be positioned at the position of opposite end in this eccentric grove, and this connects sub-cooperation and is active in this casket groove,
One projection, line shaft should be gone up to coat in the outside that is socketed on this slide block, and an end of this projection is coupling in this pin bucket seat power transmission shaft, and
One impeller is adjacent to this projection, drives this slide block and moves in order to push this projection, makes that line shaft can be displaced in this eccentric grove between relative two positions on this,
Wherein, when this connection rib is promoted, make this casket groove slide on this and connect the son outside, drive this projection and should go up the line shaft swing relatively, and making that line shaft moves back and forth between relative two positions on this, relative two positions that original position of line shaft is positioned at this eccentric grove on this can make this pin bucket seat power transmission shaft drive this needle bar respectively and send the direction motion with different two pins;
Wherein, when external force as yet not when this Sewing machines outside presses this driving lever, this upperpush rod spare presses down rod member with this and does not press rotating shaft and this lower rotary shaft on this respectively, make that positive ball contacts this upper process portion and this lower process portion respectively with the positive ball of this time on this, drawing-inroller and this time drawing-inroller all just change on this and make, and control pin simultaneously and send direction, when external force when this Sewing machines outside presses this driving lever, this upperpush rod spare presses down rod member with this and presses rotating shaft and this lower rotary shaft on this respectively, make this superinverse ball and this subinverse ball contact this upper process portion and this lower process portion respectively, drawing-inroller and this time drawing-inroller all reverse on this and make, and are controlled to be another pin simultaneously and send direction.
2. Sewing machines Synchronization Control drawing-inroller as claimed in claim 1 turns to and pin send the switching controls mechanism of direction, it is characterized in that: the last rotating shaft of this switching controls mechanism is to see through a universal joint to connect and should go up drawing-inroller and should go up drawing-inroller and rotate to drive.
3. Sewing machines Synchronization Control drawing-inroller as claimed in claim 1 turns to and pin send the switching controls mechanism of direction, it is characterized in that: the following positive ball of the following unidirectional Bearing group of this switching controls mechanism, subinverse ball have a plurality of, and ring is located at around the axial plane of this lower rotary shaft respectively.
4. Sewing machines Synchronization Control drawing-inroller as claimed in claim 3 turns to and pin send the switching controls mechanism of direction, and it is characterized in that: the positive ball of this time, subinverse ball are respectively 3, and the ring of dislocation respectively is located at around the axial plane of this lower rotary shaft.
5. Sewing machines Synchronization Control drawing-inroller as claimed in claim 1 turns to and pin send the switching controls mechanism of direction, it is characterized in that: the last positive ball of the last unidirectional Bearing group of this switching controls mechanism, superinverse ball have a plurality of, and ring is located at around the axial plane of rotating shaft on this respectively.
6. Sewing machines Synchronization Control drawing-inroller as claimed in claim 5 turns to and pin send the switching controls mechanism of direction, and it is characterized in that: positive ball, superinverse ball are respectively 3 on this, and the axial plane side face that is located on rotating shaft of dislocation respectively.
7. Sewing machines Synchronization Control drawing-inroller as claimed in claim 1 turns to and pin send the switching controls mechanism of direction, it is characterized in that: the pin of this switching controls mechanism send the driving member of switching device shifter to have more an auxiliary casket groove, this slide block has more an auxiliary son that connects, should auxiliary connect the son cooperation and be active in this auxiliary casket groove, make this driving member and the relatively stable motion of this slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206560235U CN201924162U (en) | 2010-12-07 | 2010-12-07 | Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206560235U CN201924162U (en) | 2010-12-07 | 2010-12-07 | Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924162U true CN201924162U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206560235U Expired - Lifetime CN201924162U (en) | 2010-12-07 | 2010-12-07 | Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924162U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113132A (en) * | 2015-09-22 | 2015-12-02 | 缙云县帅马针车有限公司 | Roller machine capable of efficiently and stably achieving backstitching |
| CN109423776A (en) * | 2017-09-05 | 2019-03-05 | 宁波裕创智能科技有限公司 | Turbine inductor type stepper motor feed sewing machine |
| CN109457401A (en) * | 2019-01-15 | 2019-03-12 | 杰克缝纫机股份有限公司 | Sewing machine and its feeding adjusting device |
| CN109652925A (en) * | 2019-01-29 | 2019-04-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine upper roller feeding mechanism and send needle linkage mechanism |
-
2010
- 2010-12-07 CN CN2010206560235U patent/CN201924162U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113132A (en) * | 2015-09-22 | 2015-12-02 | 缙云县帅马针车有限公司 | Roller machine capable of efficiently and stably achieving backstitching |
| CN109423776A (en) * | 2017-09-05 | 2019-03-05 | 宁波裕创智能科技有限公司 | Turbine inductor type stepper motor feed sewing machine |
| CN109457401A (en) * | 2019-01-15 | 2019-03-12 | 杰克缝纫机股份有限公司 | Sewing machine and its feeding adjusting device |
| CN109652925A (en) * | 2019-01-29 | 2019-04-19 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine upper roller feeding mechanism and send needle linkage mechanism |
| CN109652925B (en) * | 2019-01-29 | 2024-03-26 | 安徽杰羽制鞋机械科技有限公司 | Upper roller feeding mechanism and needle feeding linkage mechanism of sewing machine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Wei Lun sewing machine Co., Ltd. Assignor: Chen Ruiwen Contract record no.: X2019990000007 Denomination of utility model: Sewing machine switching control mechanism capable of synchronously controlling rotation directions of feeding wheels and needle feeding direction Granted publication date: 20110810 License type: Common License Record date: 20190808 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |
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| CX01 | Expiry of patent term |