CN210066156U

CN210066156U - Lead frame of sewing machine

Info

Publication number: CN210066156U
Application number: CN201920754270.XU
Authority: CN
Inventors: 王枕涛
Original assignee: Shaoxing Fa Liang Underwear Co Ltd
Current assignee: Shaoxing Fa Liang Underwear Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-02-14
Anticipated expiration: 2029-05-23

Abstract

The utility model relates to a sewing machine's lead frame belongs to sewing machine's technical field, it includes the frame, be provided with the bracing piece in the frame, rotate on the bracing piece and install the lead wire pole, be provided with adjusting device on the bracing piece, adjusting device includes the fixed saddle of wearing to establish on the lead wire pole, the saddle is kept away from and is worn to be equipped with first carousel on the bracing piece of frame one side to rotate, the lateral wall and the lead wire pole fixed connection of first carousel, one side that the saddle was kept away from to first carousel is provided with first tooth's socket along axis circumference, still rotate on the bracing piece that first carousel was kept away from saddle one side and wear to be equipped with the second carousel, one side that the second carousel is close to first carousel is provided with the second tooth's socket along axis circumference, second tooth's socket and first tooth's socket meshing, still be connected with the fastening dish. The utility model discloses have the difficult not hard up effect of fastening back lead wire pole.

Description

Lead frame of sewing machine

Technical Field

The utility model belongs to the technical field of sewing machine's technique and specifically relates to a sewing machine's lead frame is related to.

Background

The sewing machine is a machine for forming one or more stitches on a sewing material by using one or more sewing threads to interweave or sew one or more layers of the sewing material, and the sewing machine can sew fabrics such as cotton, hemp, silk, rayon and the like, and also can sew products such as leather, plastics, paper and the like, and the stitches sewed by the sewing machine are neat, beautiful, flat and firm, which are the most common sewing equipment at present, and a lead frame is generally arranged in the sewing machine for neatness of a plurality of sewing threads so as to be easy to produce.

The patent of No. CN202744778U discloses a sewing machine thread frame structure as granting bulletin, including the workstation, vertically on the workstation be fixed with a bracing piece, the bracing piece bottom is fixed with the wire die-pin, the line die-pin top be provided with the lead frame on the bracing piece, the lead frame top be provided with the pin on the bracing piece, the fixed orifices has been seted up to pin one end, the lateral wall of fixed orifices is equipped with the blind hole through the screw location, the lower edge of pin has hung the lead wire ring.

The above prior art solutions have the following drawbacks: because the lead rod is connected with the support rod in a rotating mode through the fixing hole and then the locking hole is formed, the rotation of the lead rod is controlled in a mode that a screw is screwed in the locking hole, the lead rod is only fixed through the screw and only has a smaller fixed contact point, vibration can be generated in the using process of the sewing machine, the lead rod is fastened through the screw only, the lead rod is easy to loose and turn, and after the lead rod is loosened, a worker is required to stop production, so that the lead rod is fastened, the labor intensity of the worker is improved, the working efficiency of the worker is reduced, and therefore the lead frame with the lead rod fastened and not easy to loose is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sewing machine's lead frame, it has the difficult not hard up effect of fastening back lead wire pole.

The above object of the present invention can be achieved by the following technical solutions:

a lead frame of a sewing machine comprises a frame, a support rod is arranged on the frame, a lead rod is rotatably arranged on the support rod, the support rod is provided with an adjusting device which comprises a supporting platform fixedly arranged on the lead rod in a penetrating way, a first turntable is rotatably arranged on the support rod on one side of the saddle, which is far away from the frame, the side wall of the first turntable is fixedly connected with the lead rod, a first tooth socket is arranged on one side of the first rotary disc far away from the supporting platform along the axial direction, a second rotary disc is also rotatably arranged on the supporting rod on one side of the first rotary disc far away from the supporting platform in a penetrating way, one side of the second rotary disc, which is close to the first rotary disc, is provided with a second tooth groove along the circumferential direction of the axis, the second tooth groove is meshed with the first tooth groove, and a fastening disc is further installed on the supporting rod on one side, far away from the first rotary disc, of the second rotary disc.

By adopting the technical scheme, when the angle of the lead rod needs to be adjusted, the fastening disc is unscrewed by rotating the fastening disc, and the first turntable and the second turntable can rotate after the fastening disc is unscrewed because the first turntable and the second turntable are rotatably connected with the supporting rod; rotate certain angle with the lead wire pole, the lead wire pole rotates and screws up the fastening disc after accomplishing, the fastening disc is through the frictional force fastening each other with first carousel, first carousel and second carousel are through first tooth's socket and the fastening of second tooth's socket meshing, the second carousel is through the frictional force fastening each other with the saddle, through the increase contact surface, frictional force between each part has been increased, and the meshing of first tooth's socket and second tooth's socket prevents that first carousel and second carousel from rotating relatively, the pivoted possibility of lead wire pole in the sewing machine use has been reduced.

The utility model discloses further set up to: the lateral wall of the fastening disc far away from the support rod is provided with an anti-skidding rubber ring, and the lateral wall of the fastening disc far away from the anti-skidding rubber ring is provided with a plurality of convex blocks.

Through adopting above-mentioned technical scheme, set up the anti-skidding rubber circle on the fastening dish, can provide bigger frictional force when making the workman twist and move the fastening dish to easily twisting of fastening dish moves, reduced workman's intensity of labour, improved production efficiency.

The utility model discloses further set up to: and an anti-skid washer is further rotatably arranged on the support rod between the fastening disc and the second turntable.

Through adopting above-mentioned technical scheme, through setting up the anti-skidding packing ring, after the fastening dish is screwed up, the anti-skidding packing ring receives the pressure deformation, has increased the frictional force between anti-skidding packing ring and fastening dish and the second carousel, and it is more firm to make the second carousel fixed, because first tooth's socket and second tooth's socket mesh, consequently reduced the fixed back pivoted possibility of first carousel, also make the fixed more firm of first carousel promptly, strengthened the stability of fixing the lead wire pole on first carousel.

The utility model discloses further set up to: one side of the first rotary disc far away from the second rotary disc is provided with a third tooth groove along the axial direction, one side of the supporting platform close to the first rotary disc is provided with a fourth tooth groove along the axial direction, and the third tooth groove is meshed with the fourth tooth groove.

Through adopting above-mentioned technical scheme, the fastening mode between with first carousel and the saddle becomes the meshing of third tooth's socket and fourth tooth's socket from the pure friction of relying on, and because the saddle is fixed setting, consequently the meshing of third tooth's socket and fourth tooth's socket has reduced first carousel pivoted possibility in the use greatly to the stability of fixing the lead wire pole on first carousel has been improved.

The utility model discloses further set up to: the fourth tooth's socket is inboard seted up a plurality of recesses on the saddle, the recess both sides still be provided with the groove of sliding on the saddle, the recess with the groove of sliding communicates mutually, it is provided with the bearing to slide in the groove, the pivot is installed to the bearing internal rotation, install in the pivot and change the roller, it is located to change the roller in the recess, the bearing is kept away from one side of first carousel is fixed and is provided with the spring, the spring is kept away from the one end fixed mounting of bearing the groove of sliding is kept away from on the inner wall of first carousel.

Through adopting above-mentioned technical scheme, when the fastening dish is unscrewed, change the roller and partially outstanding sliding groove under the effort of spring, change the roller and raise certain distance with first tray, make third tooth's socket and fourth tooth's socket break away from the meshing state, then do not need the manual work to raise lead wire pole this moment and just rotatable, and because be rolling friction between first carousel and the saddle, reduced and promoted lead wire pole and rotated required effort, reduced workman's intensity of labour, improved work efficiency.

The utility model discloses further set up to: the wire guiding rod is provided with a plurality of wire guiding holes along the length direction, a wire guiding wheel is rotatably arranged in the wire guiding holes, and a wire guiding groove is formed in the wire guiding wheel.

Through adopting above-mentioned technical scheme, will sew up the line and change the wire guide to place it on the wire guide wheel in the wire guide, make and sew up the line and fall into the metallic channel, then the sewing machine during operation, the motion of sewing line drives the wire guide wheel and rotates, then sews up the line and take turns for sliding friction with the wire guide, has reduced the possibility that the sewing line breaks the line, has improved the stability of production, has improved work efficiency.

The utility model discloses further set up to: the support rod between the rack and the support platform is provided with a wire support rod through the adjusting device, one side of the wire support rod, which is far away from the rack, is provided with a plurality of positioning rods, and the positioning rods are rotatably provided with wire trays.

Through adopting above-mentioned technical scheme, through setting up the line tray, and will make up the line book and place on the line tray, inject the position of line tray through the locating lever, and when making up the line book and unreel because make up the line and make up the frictional force of line book and make up the line book and lead to the card line time, make up the line book and rotate certain angle with the line tray, make up the line book and rotate the unreeling angle change of back make up the line, then make up the line and make up the frictional force change of line book, make the make up line easily emit, improved the smooth degree of unreeling of making up the line book, also reduced the possibility that makes up the line broken, improved production efficiency.

The utility model discloses further set up to: the improved positioning device is characterized in that a positioning pipe is arranged on the rack and is a hollow cylinder, a plurality of elastic metal sheets are arranged on one side, away from the rack, of the positioning pipe along the circumferential direction of an axis, a clamping sleeve is connected to the positioning pipe through threads, a hollow round table-shaped compression ring is arranged on one side, away from the rack, of the clamping sleeve, the radius, close to one side of the clamping sleeve, of the compression ring is larger than the radius, away from one side of the clamping sleeve, of the compression ring, and the supporting rod is in sliding connection with the positioning pipe.

Through adopting above-mentioned technical scheme, put into the bracing piece in the registration arm, twist and move the cutting ferrule, the cutting ferrule rotates and drives the clamp ring rotation, and the inner wall of clamp ring constantly extrudees the elastic metal piece in the process that the cutting ferrule was screwed up, makes the elastic metal piece produce deformation, thereby final elastic metal piece and bracing piece butt fix the bracing piece in the registration arm and fix in the frame, the interchangeable design of lead frame has enlarged sewing machine's application scope.

The utility model discloses further set up to: and one end of the support rod, which is close to the rack, is provided with a plurality of limiting grooves along the length direction.

Through adopting above-mentioned technical scheme, the elastic metal piece constantly warp and with spacing groove clamping connection, fixed more firm with the bracing piece, reduced the possibility that the bracing piece slowly glided because of reasons such as vibrations or gravity among the operation process, increased the operating stability of equipment.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the adjusting device, the connection between the lead rod and the supporting rod is more stable, and the possibility of the lead rod rotating in the use process of the sewing machine is reduced;

2. the anti-skid washer, the third tooth groove and the fourth tooth groove are additionally arranged, so that the connection stability of the lead rod and the support rod is further enhanced;

3. the thread guide wheel is arranged in the thread guide hole, so that the friction between the sewing thread and the thread guide hole is changed into rotational friction, the possibility of thread breakage of the sewing thread is reduced, and the smoothness of the sewing thread in the use process of the sewing machine is improved;

4. the thread tray is arranged in a rotating mode, so that the possibility of thread breakage of the sewing thread is reduced, and the unwinding smoothness of the sewing thread coil is improved;

5. through setting up the cutting ferrule, make the lead frame demountable installation, can change different lead frames according to the production needs of difference, enlarged sewing machine's application scope.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the positioning tube of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

FIG. 4 is a schematic structural view of the pallet of the present invention;

fig. 5 is a schematic structural view of the fastening plate of the present invention;

fig. 6 is an enlarged schematic view of a portion B in fig. 1.

In the figure, 1, a frame; 11. a positioning tube; 12. a resilient metal sheet; 13. a card sleeve; 14. a compression ring; 2. a support bar; 21. a limiting groove; 3. an adjustment device; 31. a saddle; 311. a fourth tooth slot; 312. a groove; 313. a sliding groove; 314. a spring; 315. a bearing; 316. a rotating shaft; 317. rotating the roller; 32. a first turntable; 321. a third tooth slot; 322. a first tooth slot; 33. a second turntable; 331. a second tooth slot; 34. an anti-slip washer; 35. fastening a disc; 351. an anti-slip rubber ring; 352. a bump; 4. a wire-guiding rod; 41. a wire guide hole; 42. a wire guide wheel; 43. a wire guide groove; 5. a wire support rod; 51. positioning a rod; 52. a wire tray.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, for the thread guide frame of the sewing machine disclosed by the present invention, the thread guide frame comprises a frame 1, a hollow cylindrical positioning tube 11 is vertically arranged on the frame 1, a thread is arranged on the outer wall of the positioning tube 11, and four elastic metal sheets 12 are circumferentially arranged on one side of the positioning tube 11 away from the frame 1; the positioning tube 11 is connected with a circular cutting sleeve 13 through threads, one side of the cutting sleeve 13, which is far away from the rack 1, is provided with a hollow circular truncated cone-shaped compression ring 14, the radius of one side of the compression ring 14, which is close to the cutting sleeve 13, is the same as that of the cutting sleeve 13, and the radius of one side of the compression ring 14, which is far away from the cutting sleeve 13, is smaller than that of the cutting sleeve 13.

Vertical bracing piece 2 is equipped with in the interpolation of registration arm 11, sets up the annular spacing groove 21 of circle on the lateral wall of bracing piece 2 near the one end of cutting ferrule 13, and bracing piece 2 passes cutting ferrule 13 and clamp ring 14 and inserts and establish in registration arm 11, and the one end that frame 1 was kept away from to elastic metal piece 12 is located the spacing groove 21.

As shown in fig. 1 and 3, two adjusting devices 3 are sequentially installed on the supporting rod 2 from being close to the rack 1 to being far away from the rack 1, each of the two adjusting devices 3 includes a saddle 31 fixedly arranged on the supporting rod 2 in a penetrating manner, and a fourth tooth socket 311 is circumferentially arranged on one side of the saddle 31 far away from the rack 1 along an axis. A first rotating disc 32 is rotatably arranged on the supporting rod 2 on one side of the supporting platform 31 far away from the machine frame 1 in a penetrating mode, a third tooth groove 321 is formed in one side, close to the supporting platform 31, of the first rotating disc 32 along the circumferential direction of the axis, and the third tooth groove 321 is meshed with the fourth tooth groove 311.

As shown in fig. 3 and 4, four grooves 312 are circumferentially formed on the pallet 31 between the fourth tooth slot 311 and the support rod 2 along the axis, sliding grooves 313 are respectively formed on the pallet 31 on one side of the groove 312 close to the support rod 2 and the pallet 31 on one side of the groove 312 close to the fourth tooth slot 311, the sliding grooves 313 are communicated with the grooves 312, and the depth direction of the sliding grooves 313 is parallel to the axis of the support rod 2; a spring 314 is fixedly arranged in the sliding groove 313, a bearing 315 is fixedly arranged at one end, far away from the saddle 31, of the spring 314, the bearing 315 is in sliding connection with the sliding groove 313, a rotating shaft 316 is installed in the bearing 315 in a sleeved mode, a rotating roller 317 is installed on the rotating shaft 316, the rotating roller 317 is located in the groove 312, and the rotating roller 317 is abutted to the first rotating disc 32.

As shown in fig. 1 and 3, a first tooth groove 322 is formed in the circumferential direction of the axis on the side of the first rotary disc 32 away from the pallet 31, a second rotary disc 33 is rotatably arranged on the support rod 2 on the side of the first rotary disc 32 away from the pallet 31, a second tooth groove 331 is formed in the circumferential direction of the axis on the side of the second rotary disc 33 close to the first rotary disc 32, and the second tooth groove 331 is engaged with the first tooth groove 322. An anti-skid washer 34 is rotatably arranged on the support rod 2 on one side of the second rotary table 33, which is far away from the first rotary table 32; the support rod 2 on the side of the anti-skid washer 34 far away from the second rotary table 33 is provided with threads, and the support rod 2 on the side of the anti-skid washer 34 far away from the second rotary table 33 is rotatably connected with a fastening disc 35 through the threads.

As shown in fig. 3 and 5, the fastening plate 35 is cylindrical, and the sidewall of the fastening plate 35 away from the support rod 2 is provided with an anti-slip rubber ring 351, and the sidewall of the anti-slip rubber ring 351 away from the support rod 2 is provided with a plurality of bumps 352.

As shown in fig. 1 and 6, a rectangular lead rod 4 or a rectangular wire support rod 5 is fixedly disposed on a side wall of the first turntable 32, a length direction of the lead rod 4 is perpendicular to an axis of the support rod 2, wire guides 41 are disposed on the lead rod 4 at equal intervals along the length direction, a wire guide wheel 42 is rotatably mounted in the wire guides 41, a rotating shaft 316 of the wire guide wheel 42 is parallel to the length direction of the lead rod 4, and a wire guide groove 43 is disposed on the wire guide wheel 42.

The length direction of the thread supporting rod 5 is perpendicular to the axis of the supporting rod 2, a positioning rod 51 is vertically arranged on one side, away from the rack 1, of the thread supporting rod 5 along the length direction, and a circular thread tray 52 is rotatably arranged on the positioning rod 51 in a penetrating mode.

The implementation principle of the embodiment is as follows:

firstly, pass cutting ferrule 13 and clamp ring 14 with bracing piece 2, insert the bracing piece 2 and establish into registration arm 11 in, twist afterwards and move cutting ferrule 13 and clamp ring 14, the in-process that cutting ferrule 13 precession to frame 1 direction, the inner wall oppression elastic metal piece 12 of clamp ring 14 makes elastic metal piece 12 take place to deform, elastic metal piece 12 takes place to deform the back and supports tightly with bracing piece 2, and the one end card that elastic metal piece 12 kept away from frame 1 is gone into in spacing groove 21, accomplishes the installation of bracing piece 2.

Secondly, unscrewing the fastening disc 35, enabling the spring 314 to restore and apply force to the bearing 315, enabling the bearing 315 to transmit the acting force to the rotating shaft 316, enabling the rotating shaft 316 to transmit the acting force to the rotating roller 317, enabling the rotating roller 317 to apply the vertically upward acting force to the first rotating disc 32, and lifting the first rotating disc 32, so that the third tooth groove 321 and the fourth tooth groove 311 are disengaged; at this time, the thread guiding rod 4 or the thread supporting rod 5 is rotated to rotate the thread guiding rod 4 or the thread supporting rod 5 to a desired position, in the process, the first rotary plate 32 is rotated by a corresponding angle, in the process, the first tooth space 322 and the second tooth space 331 are kept in a meshed state, and the first rotary plate 32 and the second rotary plate 33 are synchronously rotated.

Thirdly, tightening the fastening plate 35, wherein the first rotating plate 32 transmits a vertical downward force to the rotating roller 317, the rotating roller 317 transmits a force to the spring 314, and the spring 314 is compressed to re-engage the third tooth slot 321 with the fourth tooth slot 311 during the tightening of the fastening plate 35; in addition, the anti-slip gasket 34 is pressed to deform in the process, so that the contact area between the anti-slip gasket 34 and the second rotating disk 33 is enlarged, the contact area between the anti-slip gasket 34 and the fastening disk 35 is enlarged, and the friction force is increased.

Fourthly, the sewing thread is wound on the positioning rod 51 and placed on the thread tray 52, pulled out and passed through the thread guiding hole 41 of the thread guiding rod 4, and then dropped into the thread guiding groove 43 of the thread guiding wheel 42, and the production can be started.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sewing machine's lead frame, includes frame (1), be provided with bracing piece (2) on frame (1), rotate on bracing piece (2) and install lead wire pole (4), its characterized in that: be provided with adjusting device (3) on bracing piece (2), adjusting device (3) including fixed saddle (31) of wearing to establish on lead wire pole (4), saddle (31) are kept away from frame (1) one side rotate on bracing piece (2) and are worn to be equipped with first carousel (32), the lateral wall of first carousel (32) with lead wire pole (4) fixed connection, one side that first carousel (32) kept away from saddle (31) is provided with first tooth's socket (322) along axis circumference, first carousel (32) are kept away from saddle (31) one side still rotate on bracing piece (2) and are worn to be equipped with second carousel (33), second carousel (33) are close to one side that first carousel (32) is provided with second tooth's socket (331) along axis circumference, second tooth's socket (331) with first tooth's socket (322) meshing, the second rotary table (33) is far away from one side of the first rotary table (32), and a fastening disc (35) is further installed on the supporting rod (2).

2. The lead frame of a sewing machine according to claim 1, wherein: the side wall, far away from the supporting rod (2), of the fastening disc (35) is provided with an anti-skidding rubber ring (351), and the side wall, far away from the fastening disc (35), of the anti-skidding rubber ring (351) is provided with a plurality of convex blocks (352).

3. The lead frame of a sewing machine according to claim 1, wherein: an anti-skid washer (34) is further rotatably arranged on the support rod (2) between the fastening disc (35) and the second turntable (33) in a penetrating mode.

4. The lead frame of a sewing machine according to claim 1, wherein: one side of the first rotating disc (32) far away from the second rotating disc (33) is provided with a third tooth groove (321) along the axial line circumferential direction, one side of the saddle (31) close to the first rotating disc (32) is provided with a fourth tooth groove (311) along the axial line circumferential direction, and the third tooth groove (321) is meshed with the fourth tooth groove (311).

5. The lead frame of a sewing machine according to claim 4, wherein: fourth tooth's socket (311) are inboard a plurality of recesses (312) have been seted up on saddle (31), recess (312) both sides still be provided with sliding groove (313) on saddle (31), recess (312) with sliding groove (313) are linked together, it is provided with bearing (315) to slide in sliding groove (313), pivot (316) are installed to bearing (315) internal rotation, install on pivot (316) and change roller (317), change roller (317) and be located in recess (312), bearing (315) are kept away from one side of first carousel (32) is fixed and is provided with spring (314), spring (314) are kept away from the one end fixed mounting of bearing (315) is kept away from sliding groove (313) on the inner wall of first carousel (32).

6. The lead frame of a sewing machine according to claim 1, wherein: the wire guiding rod (4) is provided with a plurality of wire guiding holes (41) along the length direction, a wire guiding wheel (42) is rotatably arranged in each wire guiding hole (41), and a wire guiding groove (43) is formed in each wire guiding wheel (42).

7. The lead frame of a sewing machine according to claim 1, wherein: the support rod (2) between the rack (1) and the supporting platform (31) is further provided with a wire supporting rod (5) through the adjusting device (3), one side of the wire supporting rod (5) far away from the rack (1) is provided with a plurality of positioning rods (51), and the positioning rods (51) are rotatably provided with wire trays (52).

8. The lead frame of a sewing machine according to claim 1, wherein: be provided with registration arm (11) on frame (1), registration arm (11) are hollow cylinder, keep away from registration arm (11) one side of frame (1) is provided with a plurality of elastic metal pieces (12) along axis circumference, there is cutting ferrule (13) through threaded connection on registration arm (11), cutting ferrule (13) are kept away from one side of frame (1) is provided with clamp ring (14) of cavity round platform form, clamp ring (14) are close to the radius of cutting ferrule (13) one side is greater than clamp ring (14) are kept away from the radius of cutting ferrule (13) one side, bracing piece (2) with registration arm (11) sliding connection.

9. The lead frame of a sewing machine according to claim 8, wherein: one end of the support rod (2) close to the rack (1) is provided with a plurality of limiting grooves (21) along the length direction.