CN214496707U

CN214496707U - Transmission piece for sewing equipment and sewing machine

Info

Publication number: CN214496707U
Application number: CN202120261726.6U
Authority: CN
Inventors: 叶邦晓; 薛秀尧; 胡义斌
Original assignee: Zhejiang Lejiang Machine Co ltd
Current assignee: Zhejiang Lejiang Machine Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-10-26
Anticipated expiration: 2031-01-30

Abstract

A driving medium and sewing machine for sewing machine. Mainly solved sewing machine and adopted the actuating cylinder to realize lifting the presser foot, the gauge needle is adjusted, action such as trimming, overall structure is more complicated, and the cost is also higher problem moreover. The method is characterized in that: the shell is provided with a cam part (321), the cam part comprises an action section (3211) and a non-action section (3212), the action section is a variable diameter surface relative to the rotation axis (110) of the transmission groove, the non-action section is an equal diameter surface relative to the rotation axis (110) of the transmission groove, and the action section is used for driving the swing seat (21) to move. The utility model provides a driving medium for sewing machine, this driving medium simple structure is applicable to sewing machine in, can be fine use with the motor cooperation.

Description

Transmission piece for sewing equipment and sewing machine

Technical Field

The utility model relates to a sewing machine field, concretely relates to a driving medium and sewing machine for sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material.

In recent years, with the continuous development of domestic clothing industry, the sewing equipment industry is continuously upgraded, and various sewing equipment is continuously emerged.

Most of the existing sewing machines adopt a driving cylinder to realize the actions of lifting a presser foot, adjusting the needle pitch, cutting threads and the like, and have more complex integral structure and higher cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a sewing machine mainly has solved present sewing machine's gauge needle drive mechanism and has reset through the spring when reseing, can appear reseing the problem of the not in place condition occasionally.

The utility model discloses a concrete implementation scheme does:

a driving medium for sewing equipment, including the casing, be equipped with the transmission groove that is used for being connected with the power supply on the casing, be equipped with cam portion on the casing, cam portion includes action section and no action section, the action section is relative the rotation axis center of transmission groove is the reducing face, no action section is relative the rotation axis center of transmission groove is the constant diameter face, the action section is used for driving the motion of pay-off tooth.

The shell is further provided with a first cam, and the first cam is used for driving the pressure lifting foot to move when moving.

The shell is further provided with a second cam, and the second cam is used for driving the cutter assembly to move when moving.

The cam part is a cam groove arranged on the shell, the cam part does not drive the feeding teeth to act when the first cam drives the pressure lifting foot to move, and the cam part does not drive the feeding teeth to act when the second cam drives the cutter assembly to move.

A sewing machine comprises a machine shell, a pressure foot, a cutter component, a swinging swing seat and a power source, and further comprises the transmission piece for sewing equipment, wherein the power source drives the transmission piece to rotate.

Be equipped with the gauge needle crank of rotatable setting in the casing, be equipped with the gyro wheel on the gauge needle crank, the gyro wheel stretches into in the cam groove with the cam groove cooperatees, the driving medium drives the gauge needle crank makes reciprocating motion just direct or indirect drive pay-off tooth during gauge needle crank reciprocating motion makes reciprocating motion.

The needle pitch crank is connected with a needle pitch pull rod, and the needle pitch pull rod is connected with the swinging swing seat.

Still the rotatable tangent line crank that is equipped with in the casing, tangent line crank by the second cam drives the activity, be equipped with the tangent line pull rod on the tangent line crank, tangent line pull rod one end is connected with tangent line pivot and is used for driving the tangent line pivot rotates, tangent line pivot one end is equipped with cutter unit spare.

The shell is further rotatably provided with a pressure foot lifting crank and a pressure foot lifting lever, the pressure foot lifting crank is driven to move by the first cam, the pressure foot lifting lever is driven to rotate when the pressure foot lifting crank moves, the pressure foot lifting lever is connected with a pressure foot lifting pull rod, the front end of the pressure foot lifting pull rod is connected with a pressure foot lifting plate, and the pressure foot lifting plate is used for driving the pressure foot lifting to move.

The action section comprises an action section and a second section, the first section is used for driving the needle gage crank to swing upwards, and the second section is used for driving the needle gage crank to swing downwards.

The utility model has the advantages that: the utility model provides a driving medium for sewing machine, this driving medium simple structure is applicable to sewing machine in, can be fine use with the motor cooperation.

Drawings

Fig. 1 is a schematic perspective view of a transmission member according to an embodiment of the present invention.

Fig. 2 is a schematic front view of a transmission member according to an embodiment of the present invention.

Fig. 3 is a front view schematically illustrating a first cam according to an embodiment of the present invention.

Fig. 4 is a front view schematically illustrating a second cam according to an embodiment of the present invention.

Fig. 5 is an exploded view of an embodiment of the present invention.

Fig. 6 is a partial perspective view of a first embodiment of the present invention.

Fig. 7 is a partial perspective view of a second embodiment of the present invention.

Fig. 8 is a three-dimensional partial perspective view of a sewing machine according to an embodiment of the present invention.

Fig. 9 is a partial perspective view of a sewing machine according to an embodiment of the present invention.

Fig. 10 is a partial perspective view of a sewing machine according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figures, the transmission member for the sewing machine includes a housing 32, a transmission groove 320 for connecting with a power source is arranged on the housing, a cam portion 321 is arranged on the housing, the cam portion includes an action section 3211 and a non-action section 3212, the action section is a diameter-variable surface relative to a rotation axis 110 of the transmission groove, the non-action section is an equal-diameter surface relative to the rotation axis 110 of the transmission groove, and the action section is used for driving the swing seat 21 to move, and further, can be used for changing the amplitude of the reciprocating motion of the feeding tooth. The transmission groove can be matched with a transmission shaft of a motor for use, the swinging swing seat is driven to move (can be directly driven or driven by a transmission mechanism) through the action surface during rotation, and a conventional driving cylinder is not needed. The cam part can be a cam or a cam groove, the action section is a circumferential surface of the cam when the cam part is the cam groove, and the inner walls of two sides of the cam groove of the action section when the cam part is the cam groove. As an alternative, the cam portion drives the swing seat 21 to move when rotating, the swing seat drives the feeding shaft 34 to move when moving, the feeding shaft drives the feeding tooth assembly to move, the feeding tooth assembly comprises feeding teeth, and details are not repeated for the prior art.

In this embodiment, as shown in the figure, the housing is further provided with a first cam 322, and the first cam is used for driving the pressure lifting foot 11 to move when moving.

In this embodiment, as shown, a second cam 323 is further disposed on the housing, and the second cam is used for driving the cutter assembly 12 to move when moving.

In this embodiment, as shown in the figure, the cam portion is a cam groove provided on the housing, and the cam portion does not drive the feed dog to move when the first cam drives the pressure raising foot to move, and the cam portion does not drive the feed dog to move when the second cam drives the cutter assembly to move. When the action section drives the needle pitch crank to move, the first action section and the second action end are not in contact with the opposite crank, the cutter assembly comprises a cutter frame, a cutter blade and the like, and the operation is not repeated for the prior art.

In the embodiment, as shown in the figure, the sewing machine comprises a machine shell 1, a pressure raising and pressing foot 11, a cutter assembly 12, a swinging swing seat 21 and a power source 6, and further comprises the transmission member for the sewing equipment, wherein the power source drives the transmission member to rotate. The transmission part is used for driving three different systems to act, and can be a thread cutting mechanism, a presser foot lifting mechanism, a needle gauge mechanism and the like, and how the mechanism works as the prior art is not described any more.

In this embodiment, as shown in the figure, be equipped with the gauge needle crank 31 of rotatable setting in the casing, be equipped with gyro wheel 311 on the gauge needle crank, the gyro wheel stretches into in the cam groove with the cam groove cooperatees, the driving medium drives gauge needle crank makes reciprocating motion just direct or indirect drive during gauge needle crank reciprocating motion pay-off tooth makes reciprocating motion. The feeding tooth is directly or indirectly driven to reciprocate, the follower can be driven by other driving parts or can be directly driven, the driving pin or the roller moves in the cam groove, when the driving part rotates, the cam groove rotates to drive the follower to move, the needle pitch crank also reciprocates along with the cam groove, then the swinging swing seat is driven to reciprocate along with the cam groove, and the feeding tooth is driven to reciprocate along with the cam groove. Alternatively, the cam groove is an annular closed groove.

In the present embodiment, as shown in the figure, the needle pitch crank is connected with a needle pitch pull rod 33, and the needle pitch pull rod is connected with the swing seat.

In this embodiment, as shown in the figure, still the rotatable tangent line crank 41 that is equipped with in the casing, tangent line crank by the activity is driven to the second cam, be equipped with tangent line pull rod 42 on the tangent line crank, tangent line pull rod one end is connected with tangent line pivot 43 and is used for driving tangent line pivot rotates, tangent line pivot one end is equipped with cutter unit spare. When the second cam rotates, the tangent crank is driven to rotate, when the tangent crank rotates, the tangent pull rod is driven to move, the tangent pull rod drives the tangent rotating shaft to rotate, and then the cutter assembly is driven to rotate, and when the cutter assembly resets, the cutter assembly can reset through the torsional spring 40.

In this embodiment, as shown in the figure, a pressure lifting and pressing crank 51 and a pressure lifting and pressing lever 53 are further rotatably arranged in the housing, the pressure lifting and pressing crank is driven by the first cam to move, the pressure lifting and pressing lever is driven to rotate when moving, a pressure lifting and pressing pull rod 54 is connected to the pressure lifting and pressing lever, a pressure lifting and pressing foot plate 55 is connected to the front end of the pressure lifting and pressing pull rod, and the pressure lifting and pressing foot plate is used for driving the pressure lifting and pressing foot to move. When the first cam rotates, the presser foot lifting crank is driven to move, the presser foot lifting crank drives the presser foot lifting lever to rotate, the presser foot lifting lever is driven to the presser foot lifting pull rod, the presser foot lifting connecting rod drives the presser foot lifting rotating plate, the presser foot lifting rotating plate drives the presser foot lifting, and during resetting, the first cam resets through the spring 50.

In this embodiment, as shown in the figure, the motion segment includes a first segment 32111 and a second segment 32112, the first segment is used to drive the pitch crank to swing upward, and the second segment is used to drive the pitch crank to swing downward.

In addition, in the drawings, a first rotating shaft 81, a second rotating shaft 82, a third rotating shaft 83, a fourth rotating shaft 84 and a fifth rotating shaft 85 are used for being rotatably connected with the shell.

In this embodiment, as shown, the pitch link is a gimbaled link. The operation is more stable.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. A driving medium for sewing machine, including casing (32), be equipped with on the casing and be used for the driving groove (320) be connected with the power supply, its characterized in that: the shell is provided with a cam part (321), the cam part comprises an action section (3211) and a non-action section (3212), the action section is a variable diameter surface relative to a rotating axis (110) of the transmission groove, the non-action section is an equal diameter surface relative to the rotating axis (110) of the transmission groove, and the action section is used for driving the feeding tooth (35) to move.

2. A transmission for sewing machines according to claim 1, characterized in that: the shell is further provided with a first cam (322), and the first cam is used for driving the pressure lifting foot (11) to move when moving.

3. A transmission for sewing machines according to claim 2, characterized in that: the shell is further provided with a second cam (323) which is used for driving the cutter assembly (12) to move when moving.

4. A transmission for sewing machines according to claim 3, characterized in that: the cam part is a cam groove arranged on the shell, the cam part does not drive the feeding teeth (35) to move when the first cam drives the pressure lifting foot to move, and the cam part does not drive the feeding teeth to move when the second cam drives the cutter assembly to move.

5. The utility model provides a sewing machine, includes casing (1), including lifting presser foot (11), cutter unit spare (12), swing pendulum seat (21) and power supply (6), its characterized in that: further comprising a transmission member for a sewing machine as claimed in claim 4, said power source driving said transmission member in rotation.

6. A sewing machine according to claim 5, wherein: be equipped with gauge needle crank (31) of rotatable setting in the casing, be equipped with gyro wheel (311) on the gauge needle crank, the gyro wheel stretches into in the cam groove with the cam groove cooperatees, the driving medium drives gauge needle crank makes reciprocating motion just direct or indirect drive during gauge needle crank reciprocating motion pay-off tooth makes reciprocating motion.

7. A sewing machine according to claim 6, wherein: the needle pitch crank is connected with a needle pitch pull rod (33), and the needle pitch pull rod is connected with the swinging swing seat.

8. A sewing machine according to claim 6, wherein: still rotatable tangent line crank (41) that is equipped with in the casing, tangent line crank by the activity is driven to the second cam, be equipped with tangent line pull rod (42) on the tangent line crank, tangent line pull rod one end is connected with tangent line pivot (43) and is used for driving tangent line pivot rotates, tangent line pivot one end is equipped with cutter unit spare.

9. A sewing machine according to claim 6, wherein: the shell is further rotatably provided with a pressure foot lifting crank (51) and a pressure foot lifting lever (53), the pressure foot lifting crank is driven to move by the first cam, the pressure foot lifting crank drives the pressure foot lifting lever to rotate when moving, a pressure foot lifting pull rod (54) is connected to the pressure foot lifting lever, a pressure foot lifting plate (55) is connected to the front end of the pressure foot lifting pull rod, and the pressure foot lifting plate is used for driving the pressure foot lifting to move.

10. A sewing machine according to claim 8, wherein: the action section comprises an action section and a motion section, wherein the action section comprises a first section (32111) and a second section (32112), the first section is used for driving the needle pitch crank to swing upwards, and the second section is used for driving the needle pitch crank to swing downwards.