阅读说明：本技术 送料机构及具有其的缝纫机 (Feeding mechanism and sewing machine with it ) 是由 易相瑞 鲍增金 李健鹏 楼俏军 于 2018-05-25 设计创作，主要内容包括：本发明提供了一种送料机构及具有其的缝纫机,送料机构固定在缝纫机的机壳上,包括送料轮,送料轮用于压设在缝料上,以在送料轮转动时送料,送料机构还包括：传动组件,传动组件包括输出轴,输出轴与送料轮传动连接；其中,输出轴具有绕其轴线转动的第一旋转方向和第二旋转方向,当输出轴以第一旋转方向转动时,输出轴带动送料轮以第一转动方向转动,以使送料轮正向送料；当输出轴以第二旋转方向转动时,输出轴带动送料轮以第二转动方向转动,以使送料轮反向送料。本发明的送料机构解决了现有技术中的缝纫机存在倒缝送料力矩不足的问题。(The present invention provides a kind of feeding mechanism and with its sewing machine, feeding mechanism is fixed on the casing of sewing machine, including drawing-inroller, drawing-inroller is for being pressed on sewing, with the feeding when drawing-inroller rotates, feeding mechanism further include: transmission component, transmission component include output shaft, and output shaft and drawing-inroller are sequentially connected；Wherein, output shaft has the first direction of rotation and the second direction of rotation rotatable around its axis, and when output shaft is rotated with the first direction of rotation, output shaft drives drawing-inroller to rotate with the first rotation direction, so that drawing-inroller forward direction feeding；When output shaft is rotated with the second direction of rotation, output shaft drives drawing-inroller to rotate with the second rotation direction, so that the reversed feeding of drawing-inroller.Feeding mechanism of the invention solves the problems, such as that sewing machine in the prior art exists and backstitches feeding torque deficiency.)

1. a kind of feeding mechanism is fixed on the casing (10) of sewing machine, the feeding mechanism includes drawing-inroller (20), described to send Material wheel (20) is for being pressed on sewing, with the feeding when the drawing-inroller (20) rotate, which is characterized in that the feeding mechanism Further include:

Transmission component (30), the transmission component (30) include output shaft (33), the output shaft (33) and the drawing-inroller (20) it is sequentially connected；

Wherein, the output shaft (33) has the first direction of rotation and the second direction of rotation rotatable around its axis, when described defeated When shaft (33) is rotated with first direction of rotation, the output shaft (33) drives the drawing-inroller (20) with the first rotation side To rotation, so that the drawing-inroller (20) forward direction feeding；When the output shaft (33) is rotated with second direction of rotation, institute Stating output shaft (33) drives the drawing-inroller (20) with the rotation of the second rotation direction, so that the drawing-inroller (20) reversed feeding.

2. feeding mechanism according to claim 1, which is characterized in that the transmission component (30) includes driving section (34), The driving section (34) has the first working condition and the second working condition；The transmission component (30) includes the first driving member (31) and the second driving member (32), first driving member (31) and second driving member (32) with the output shaft (33) Transmission connection；When the driving section (34) are in the first working condition, the driving section (34) and first driving member (31) be sequentially connected so that the output shaft (33) under the drive of the driving section (34) and first driving member (31) with The rotation of first direction of rotation；When the driving section (34) are in the second working condition, the driving section (34) and described second is passed Moving part (32) transmission connection, so that drive of the output shaft (33) in the driving section (34) and second driving member (32) Under with the second rotation direction rotation.

3. feeding mechanism according to claim 2, which is characterized in that the driving section (34) includes the first driven gear (341) and the second driven gear (342), first driving member (31) is adapted with first driven gear (341), described Second driving member (32) is adapted with second driven gear (342)；The first working condition is in the driving section (34) When, first driven gear (341) engaged with first driving member (31) and second driven gear (342) with it is described Second driving member (32) separation；When the driving section (34) are in the second working condition, the first driven gear (341) with it is described First driving member (31) separates and second driven gear (342) is engaged with second driving member (32).

4. feeding mechanism according to claim 3, which is characterized in that the feeding mechanism further include:

Driving gear (50), the driving gear (50) and first driven gear (341) and second driven gear (342) it is sequentially connected, so that the driving gear (50) drives first driven gear (341) and second driven tooth Take turns (342) rotation.

5. feeding mechanism according to claim 2, which is characterized in that first driving member (31) and second transmission Part (32) is slip-clutch.

6. feeding mechanism according to claim 2, which is characterized in that the output shaft (33) includes the first rod body part (331) it is docked with the second rod body part (332), first rod body part (331) and second rod body part (332), described first Driving member (31) is arranged on first rod body part (331), and second driving member (32) is arranged in second rod body part (332) on, to drive the output shaft (33) to rotate in first driving member (31) movement, or in second driving member (32) output shaft (33) is driven to rotate when moving.

7. feeding mechanism according to claim 6, which is characterized in that second rod body part (332) has the first shaft part (3321), the second shaft part (3322) and third shaft part (3323), first shaft part (3321) are arranged in second rod body part (332) close to one end of first rod body part (331), second shaft part (3322) and the third shaft part (3323) are along institute It states the first shaft part (3321) to set gradually far from the direction of first rod body part (331), first rod body part (331) is arranged On first shaft part (3321), the driving section (34) is set on second shaft part (3322), second transmission Part (32) is set on the third shaft part (3323).

8. feeding mechanism according to claim 7, which is characterized in that second shaft part (3322) is close to the first axle One end of section (3321) is provided with card slot (3324), and the one of close second rod body part (332) of first rod body part (331) End is provided with the stopper protrusion (3311) to match with the card slot (3324), and the stopper protrusion (3311) is caught in the card slot (3324) in.

9. feeding mechanism according to claim 2, which is characterized in that the feeding mechanism further include:

Switch piece (40), the switch piece (40) and first driving member (31) and second driving member (32) be all connected with Drive first driving member (31) and second driving member (32) mobile；The switch piece (40) has first position and the Two positions, when the switch piece (40) is located at the first position, the switch piece (40) drives first driving member (31) it is connected with the driving section (34) and separates second driving member (32) with the driving section (34)；In the switching When part (40) is located at the second position, the switch piece (40) drives second driving member (32) and the driving section (34) It connects and separates first driving member (31) with the driving section (34).

10. feeding mechanism according to claim 9, which is characterized in that the switch piece (40) has first to plug portion (41) plugged portion (42) with second, first driving member (31) have with described first plug that portion (41) matches it is first recessed Slot (311), second driving member (32), which has, plugs the second groove (321) that portion (42) matches with described second, so that First driving member (31) plugs by described first and cuts described in being fitted to of portion (41) and first groove (311) It changes on part (40), and second driving member (32) is made to plug portion (42) and second groove (321) by described second It is fitted on the switch piece (40).

11. feeding mechanism according to claim 10, which is characterized in that the feeding mechanism further include:

One end of swing component (60), the swing component (60) is fixedly connected with the switch piece (40), and the swing component (60) can Swingingly it is arranged, to drive the switch piece (40) to move to the first position or the second position.

12. feeding mechanism according to claim 11, which is characterized in that one end of the swing component (60) is provided with installation Slot (61), the switch piece (40) have connecting column (43), and the connecting column (43) is plugged in the mounting groove (61).

13. feeding mechanism according to claim 12, which is characterized in that the feeding mechanism further includes elastic component (70), The swing component (60) has the first mounting hole (62), and the elastic component (70) is hung in first mounting hole (62), with Make the swing component (60) under the action of the elastic component (70) return and make the switch piece (40) be in described first It sets.

14. feeding mechanism according to claim 13, which is characterized in that the swing component (60) has the second mounting hole (63), the side in first mounting hole (62) far from the mounting groove (61) is arranged in second mounting hole (63), described Feeding mechanism further includes driving assembly (80), and the driving component (80) includes the first fastener (81), first fastener (81) be plugged in second mounting hole (63) so that the swing component (60) by first fastener (81) with it is described Second mounting hole (63) is connect with the driving component (80), so that work of the swing component (60) in the driving component (80) With lower swing so that the switch piece (40) is in the second position.

15. feeding mechanism according to claim 9, which is characterized in that the feeding mechanism further include:

Mounting base (90), the mounting base (90) are fixed on casing (10), and third installation is provided on the mounting base (90) Hole (91) and the 4th mounting hole (92), the third mounting hole (91) and the 4th mounting hole (92) are oppositely arranged and described There are accommodation space (93) between three mounting holes (91) and the 4th mounting hole (92), the output shaft (33) passes through described the Three mounting holes (91) and the 4th mounting hole (92) are plugged in the mounting base (90), the driving section (34), described the One driving member (31) and second driving member (32) are respectively positioned in the accommodation space (93).

16. feeding mechanism according to claim 15, which is characterized in that the switch piece (40) has sliding slot (44), institute The traveller (94) for being provided on mounting base (90) and matching with the sliding slot (44) is stated, so that the switch piece (40) is in the cunning It is moved under the action of slot (44) and the traveller (94).

17. a kind of sewing machine, including casing and the feeding mechanism being fixed on casing, which is characterized in that the feeding mechanism is Feeding mechanism described in any one of claims 1 to 16.

Technical field

The present invention relates to field of mechanical technique, in particular to a kind of feeding mechanism and with its sewing machine.

Background technique

Currently, roller sewing machine in the prior art is only in positive seam, the upper roller of sewing machine head just can active-feeding, When seam, upper roller is driven feeding, will cause backstitch feeding torque deficiency problem in this way, can send when especially backstitching climbing motionless Material.

Summary of the invention

The main purpose of the present invention is to provide a kind of feeding mechanism and with its sewing machine, to solve in the prior art Sewing machine to there is a problem of backstitching feeding torque insufficient.

To achieve the goals above, according to an aspect of the invention, there is provided a kind of feeding mechanism, is fixed on sewing machine Casing on, feeding mechanism includes drawing-inroller, and drawing-inroller is for being pressed on sewing, with the feeding when drawing-inroller rotates, feeding Mechanism further include: transmission component, transmission component include output shaft, and output shaft and drawing-inroller are sequentially connected；Wherein, output shaft has First direction of rotation and the second direction of rotation rotatable around its axis, when output shaft is rotated with the first direction of rotation, output shaft Drawing-inroller is driven to rotate with the first rotation direction, so that drawing-inroller forward direction feeding；When output shaft is rotated with the second direction of rotation, Output shaft drives drawing-inroller to rotate with the second rotation direction, so that the reversed feeding of drawing-inroller.

Further, transmission component includes driving section, and driving section has the first working condition and the second working condition；Transmission Component includes the first driving member and the second driving member, and the first driving member and the second driving member are sequentially connected with output shaft；Work as biography When dynamic portion is in the first working condition, driving section and the first driving member are sequentially connected, so that output shaft is passed in driving section and first With the rotation of the first direction of rotation under the drive of moving part；When driving section is in the second working condition, driving section and the second driving member are passed Dynamic connection, so that output shaft is under the drive of driving section and the second driving member with the rotation of the second rotation direction.

Further, driving section includes the first driven gear and the second driven gear, the first driving member and the first driven tooth Wheel is adapted, and the second driving member is adapted with the second driven gear；When driving section is in the first working condition, the first driven tooth Wheel is with the engagement of the first driving member and the second driven gear is separated with the second driving member；When driving section is in the second working condition, First driven gear is separated with the first driving member and the second driven gear is engaged with the second driving member.

Further, feeding mechanism further include: driving gear, driving gear and the first driven gear and the second driven gear It is sequentially connected, so that driving gear drives the first driven gear and the rotation of the second driven gear.

Further, the first driving member and the second driving member are slip-clutch.

Further, output shaft includes the first rod body part and the second rod body part, and the first rod body part and the second rod body part are docked, First driving member is arranged in the first rod body part, and the second driving member is arranged in the second rod body part, in the first drive member When drive output shaft rotation, or in the second drive member drive output shaft rotation.

Further, the second rod body part has the first shaft part, the second shaft part and third shaft part, and the first shaft part is arranged second Rod body part close to one end of the first rod body part, the direction of the second shaft part and third shaft part along the first shaft part far from the first rod body part according to Secondary setting, the first rod body part are set on the first shaft part, and driving section is set on the second shaft part, and the second driving member is set in third On shaft part.

Further, the second shaft part is provided with card slot close to one end of the first shaft part, and the first rod body part is close to second body of rod The one end in portion is provided with the stopper protrusion to match with card slot, and stopper protrusion is caught in card slot.

Further, feeding mechanism further include: switch piece, switch piece and the first driving member and the second driving member be all connected with Drive the first driving member and the second driving member mobile；Switch piece has first position and the second position, is located at first in switch piece When position, switch piece drive the first driving member connect with driving section and make the second driving member and running part from；In switch piece position When the second position, switch piece drive the second driving member connect with driving section and make the first driving member and running part from.

Further, switch piece plugs portion and second with first and plugs portion, and the first driving member, which has, plugs portion with first The first groove to match, the second driving member have the second groove to match with second portion of plugging, so that the first driving member is logical It crosses first and plugs being fitted on switch piece of portion and the first groove, and the second driving member is made to plug portion and second by second Groove is fitted on switch piece.

Further, feeding mechanism further include: one end of swing component, swing component is fixedly connected with switch piece, and swing component can Swingingly it is arranged, to drive switch piece to move to first position or the second position.

Further, one end of swing component is provided with mounting groove, and switch piece has connecting column, and connecting column is plugged in mounting groove It is interior.

Further, feeding mechanism further includes elastic component, and swing component has the first mounting hole, and elastic component is hung on the first peace It fills in hole, so that swing component return and makes switch piece be in first position under the action of the elastic member.

Further, swing component has the second mounting hole, and the first mounting hole is arranged in far from mounting groove in the second mounting hole Side, feeding mechanism further include driving assembly, and driving assembly includes the first fastener, and the first fastener is plugged in the second mounting hole It is interior, so that swing component is connect by the first fastener with the second mounting hole with driving assembly, so that swing component is in driving assembly Lower swing is acted on so that switch piece is in the second position.

Further, feeding mechanism further include: mounting base, mounting base are fixed on casing, and third is provided in mounting base Mounting hole and the 4th mounting hole, third mounting hole and the 4th mounting hole are oppositely arranged and between third mounting hole and the 4th mounting hole With accommodation space, output shaft is plugged in mounting base by third mounting hole and the 4th mounting hole, driving section, the first driving member It is respectively positioned in accommodation space with the second driving member.

Further, switch piece has sliding slot, the traveller to match with sliding slot is provided in mounting base, so that switch piece exists It is moved under the action of sliding slot and traveller.

According to another aspect of the present invention, a kind of sewing machine is provided, including casing and the feeder being fixed on casing Structure, wherein feeding mechanism is above-mentioned feeding mechanism.

Feeding mechanism of the invention is by setting output shaft, and output shaft has the first direction of rotation rotatable around its axis With the second direction of rotation, feeding mechanism output shaft in positive seam can be made to rotate with the first direction of rotation, and then drive feeding Wheel realizes the active-feeding during positive seam with the rotation of the first rotation direction；And make feeding mechanism when backstitching output shaft with The rotation of second direction of rotation, and then drawing-inroller is driven to rotate with the second rotation direction, realize the active-feeding during backstitching, and And also can guarantee the smooth of climbing feeding when sewing has the sewing of obvious height step difference when backstitching, in this way, the feeder Structure, which realizes, just to be stitched, backstitches and can improve by drawing-inroller active-feeding and just stitch, backstitch feeding torque, and then improve Feeding climbing capacity.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:

Fig. 1 shows the structural schematic diagram of an angle of the embodiment of feeding mechanism according to the present invention；

Fig. 2 shows the structural schematic diagrams of another angle of the embodiment of feeding mechanism according to the present invention；

Fig. 3 shows the fractionation structural representation of the embodiment of feeding mechanism according to the present invention；

Fig. 4 shows the structural representation when output shaft of feeding mechanism according to the present invention is rotated with the first direction of rotation Figure；

Fig. 5 shows the cross-sectional view of the Section A-A of feeding structure in Fig. 4；

Fig. 6 shows the structural representation when output shaft of feeding mechanism according to the present invention is rotated with the second direction of rotation Figure；And

Fig. 7 shows the cross-sectional view of the section B-B of feeding structure in Fig. 6.

Wherein, the above drawings include the following reference numerals:

10, casing；20, drawing-inroller；30, transmission component；31, the first driving member；311, the first groove；32, the second transmission Part；321, the second groove；33, output shaft；331, the first rod body part；3311, stopper protrusion；332, the second rod body part；3321, One shaft part；3322, the second shaft part；3323, third shaft part；3324, card slot；3325, the 4th shaft part；34, driving section；341, first Driven gear；342, the second driven gear；35, the first spring bearing；36, the second spring bearing；37, the second fastener；38, One gasket；39, the second gasket；40, switch piece；41, first portion is plugged；42, second portion is plugged；43, connecting column；44, sliding slot； 45, the first retaining ring；46, the second retaining ring；47, limit shaft；50, driving gear；60, swing component；61, mounting groove；62, the first installation Hole；63, the second mounting hole；70, elastic component；80, driving assembly；81, the first fastener；82, electromagnet；83, drive link group Part；831, connecting rod；832, rotating bar；8321, the 5th mounting hole；8322, fulcrum pin；8323, card sets slot；833, connecting rod base； 8331, it sells；90, mounting base；91, third mounting hole；92, the 4th mounting hole；93, accommodation space；94, traveller；

100, support component；110, swing component support portion；120, support base；1201, the 6th mounting hole；130, part is plugged；

200, power transfer assembly；210, the first connector；220, the second connector；230, third connector；231, sliding Dynamic slot；240, coupling spindle；

300, Power Component；310, rotation axis；320, ball link component；370, the first ball link；380, the second ball link； 330, first bearing component；340, second bearing component；350, upper side axis；351, Universal-head；360, coupling head；

400, bottom roller.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

The present invention provides a kind of feeding mechanisms, please refer to Fig. 1 to Fig. 7, and feeding mechanism is fixed on the casing 10 of sewing machine On, feeding mechanism includes drawing-inroller 20, and drawing-inroller 20 is for being pressed on sewing, with the feeding when drawing-inroller 20 rotates, wherein Feeding mechanism further include: transmission component 30, transmission component 30 include output shaft 33, and output shaft 33 and drawing-inroller 20 are sequentially connected； Wherein, output shaft 33 has the first direction of rotation and the second direction of rotation rotatable around its axis, when output shaft 33 is with the first rotation When turning direction rotation, output shaft 33 drives drawing-inroller 20 with the rotation of the first rotation direction, so that the positive feeding of drawing-inroller 20；When defeated When shaft 33 is with the rotation of the second direction of rotation, output shaft 33 drives drawing-inroller 20 with the rotation of the second rotation direction, so that drawing-inroller 20 reversed feedings.

Feeding mechanism of the invention is by setting output shaft 33, and output shaft has the first rotation side rotatable around its axis To with the second direction of rotation, feeding mechanism output shaft in positive seam can be made to rotate with the first direction of rotation, and then drive and send Material wheel 20 realizes the active-feeding during positive seam with the rotation of the first rotation direction；And make feeding mechanism output when backstitching Axis is rotated with the second direction of rotation, and then drives drawing-inroller 20 with the rotation of the second rotation direction, realizes the active during backstitching Feeding, also, when backstitching sewing have obvious height step difference sewing when also can guarantee climb feeding it is smooth, in this way, The feeding mechanism, which realizes, just to be stitched, backstitches and can improve by drawing-inroller active-feeding and just stitch, backstitch feeding torque, into And improve feeding climbing capacity.

In the present embodiment, as shown in Figures 5 to 7, transmission component 30 includes driving section 34, and driving section 34 has the first work Make state and the second working condition；Transmission component 30 includes the first driving member 31 and the second driving member 32,31 He of the first driving member Second driving member 32 is sequentially connected with output shaft 33；When driving section 34 is in the first working condition, driving section 34 and first Driving member 31 is sequentially connected, so that output shaft 33 is turned under the drive of driving section 34 and the first driving member 31 with the first direction of rotation It is dynamic；When driving section 34 is in the second working condition, driving section 34 and the second driving member 32 are sequentially connected, so that output shaft 33 exists With the rotation of the second rotation direction under the drive of driving section 34 and the second driving member 32.

In order to realize the transmission of driving section 34 and the first driving member 31, the second driving member 32, as shown in Figures 5 to 7, transmission Portion 34 includes the first driven gear 341 and the second driven gear 342, and the first driving member 31 is adapted with the first driven gear 341, Second driving member 32 is adapted with the second driven gear 342；When driving section 34 is in the first working condition, the first driven gear 341 with the engagement of the first driving member 31 and the second driven gear 342 is separated with the second driving member 32；The second work is in driving section 34 When making state, the first driven gear 341 is separated with the first driving member 31 and the second driven gear 342 is nibbled with the second driving member 32 It closes.In this way, the engagement by the engagement of the first driven gear and the first driving member, the second driven gear and the second driving member guarantees Effective transmission of driving section 34 and the first driving member, the second driving member.

In order to drive the first driven gear 341 and the second driven gear 342, as shown in figure 3, feeding mechanism further includes actively Gear 50, driving gear 50 is sequentially connected with the first driven gear 341 and the second driven gear 342, so that driving gear 50 The first driven gear 341 and the second driven gear 342 is driven to rotate.