阅读说明：本技术 一种缝纫机针距调节旋钮结构 (Sewing machine needle distance adjusting knob structure ) 是由 薛秀尧 胡义斌 于 2019-11-08 设计创作，主要内容包括：一种缝纫机针距调节旋钮结构。主要解决了传统缝纫机针距调节时旋钮通过一个限位销来进行限位,容易晃动,使用效果并不稳定的问题。其特征在于：所述旋钮与所述缝纫机壳体相对面设有容纳槽(3),所述容纳槽内壁设有若干档位槽(31),还包括弹性件(4),所述弹性件包括档尖(41),所述挡尖包括伸入所述档位槽与所述档位槽限位配合的第一位置和转动所述旋钮时受力收缩滑出所述档位槽的第二位置。本发明提供一种缝纫机针距调节旋钮结构,通过弹性件来起到对旋钮的限位作用,结构稳定,使用效果好。(A needle pitch adjusting knob structure of a sewing machine. The knob is spacing through a spacer pin when mainly having solved traditional sewing machine gauge adjustment, rocks easily, and result of use is unstable problem. The method is characterized in that: the knob with the sewing machine casing opposite face is equipped with holding tank (3), the holding tank inner wall is equipped with a plurality of gear grooves (31), still includes elastic component (4), elastic component includes gear point (41), keep off the point including stretching into the gear groove with the spacing complex primary importance in gear groove is with rotate atress shrink roll-off during the knob the second position in gear groove. The invention provides a sewing machine needle distance adjusting knob structure which has the advantages that the limiting effect on a knob is achieved through an elastic piece, the structure is stable, and the using effect is good.)

1. The utility model provides a sewing machine gauge needle adjust knob structure, is including installing regulation pole (1) in sewing machine casing (9), be connected with knob (2) on the regulation pole, its characterized in that: the knob with the sewing machine casing opposite face is equipped with holding tank (3), the holding tank inner wall is equipped with a plurality of gear grooves (31), still includes elastic component (4), elastic component includes gear point (41), keep off the point including stretching into the gear groove with the spacing complex primary importance in gear groove is with rotate atress shrink roll-off during the knob the second position in gear groove.

2. The needle pitch adjusting knob structure of a sewing machine according to claim 1, wherein: the elastic member includes a twisting leg (42) detachably connected to the sewing machine housing.

3. The needle pitch adjusting knob structure of a sewing machine according to claim 2, wherein: the twisting foot is connected with the sewing machine shell through a screw (93).

4. The needle pitch adjusting knob structure of a sewing machine according to claim 3, wherein: the baffle tip is arranged between the two twisting feet.

5. The needle pitch adjusting knob structure of a sewing machine according to claim 1, wherein: the axial inner wall of the accommodating groove is provided with a plurality of bosses (32), and the gear grooves are formed between the adjacent bosses.

6. The needle pitch adjusting knob structure of a sewing machine according to claim 5, wherein: the boss comprises a first boss (321) and a second boss (322) correspondingly arranged at the maximum gear of the knob, and the height of the second boss is higher than that of the first boss.

7. The needle pitch adjusting knob structure of a sewing machine according to claim 5, wherein: the top end of the first boss is smooth and excessive.

8. The needle pitch adjusting knob structure of a sewing machine according to claim 1, wherein: the outer wall of the knob is provided with a counter bore (21), and the knob further comprises a fastening screw (92), and the fastening screw penetrates through the counter bore to be in threaded connection with the adjusting rod.

9. The needle pitch adjusting knob structure of a sewing machine according to claim 1, wherein: the adjusting rod is sleeved with the adjusting rod, one end of the pre-tightening spring is abutted to the inner wall of the knob, and the other end of the pre-tightening spring is abutted to the outer wall of the shell of the sewing machine.

Technical Field

The invention relates to sewing equipment, in particular to a needle pitch adjusting knob structure of a sewing machine.

Background

The stitch length refers to the length of a stitch, i.e., the density of the stitch. The sewing machine adjusts different needle pitches according to factors such as different fabrics, different products or different processing requirements and the like in the sewing process. With the rapid development of the clothing industry, the sewing machine is widely applied to clothing manufacturing factories and is popular due to the advantages of good edge covering effect, high working efficiency and the like.

In the traditional industrial sewing machine, the knob is limited by a limiting pin when the needle pitch is adjusted, the knob is easy to shake, and the using effect is unstable.

Disclosure of Invention

In order to overcome the defects of the background art, the invention provides a needle distance adjusting knob structure of a sewing machine, which mainly solves the problems that when the needle distance of the traditional sewing machine is adjusted, a knob is limited by a limiting pin, is easy to shake and has unstable use effect.

The technical scheme adopted by the invention is as follows:

the utility model provides a sewing machine gauge needle adjust knob structure, is including installing in the regulation pole of sewing machine casing, be connected with the knob on the regulation pole, the knob with sewing machine casing opposite face is equipped with the holding tank, the holding tank inner wall is equipped with a plurality of gear grooves, still includes the elastic component, the elastic component includes the gear point, keep off the point including stretching into the gear groove with the spacing complex primary importance in gear groove with rotate atress shrink roll-off during the knob the second position in gear groove.

The elastic piece comprises a twisting foot, and the twisting foot is detachably connected with the sewing machine shell.

The twisting foot is connected with the sewing machine shell through a screw.

The baffle tip is arranged between the two twisting feet.

The axial inner wall of the accommodating groove is provided with a plurality of bosses, and the gear grooves are formed between adjacent bosses.

The boss comprises a first boss and a second boss correspondingly arranged at the maximum gear of the knob, and the height of the second boss is higher than that of the first boss.

The top end of the first boss is smooth and excessive.

The outer wall of the knob is provided with a counter bore, and the knob further comprises a fastening screw, and the fastening screw penetrates through the counter bore to be in threaded connection with the adjusting rod.

The adjusting rod is sleeved with the adjusting rod, one end of the adjusting rod is connected with the knob, and the other end of the adjusting rod is connected with the outer wall of the sewing machine shell.

The invention has the beneficial effects that: the invention provides a sewing machine needle distance adjusting knob structure which has the advantages that the limiting effect on a knob is achieved through an elastic piece, the structure is stable, and the using effect is good.

Drawings

Fig. 1 is an exploded view of one embodiment of the present invention.

FIG. 2 is a schematic view of a knob according to one embodiment of the present invention.

Fig. 3 is a schematic view of an elastic member according to an embodiment of the present invention.

Fig. 4 is a partial perspective view of an embodiment of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which: as shown in the figure, a sewing machine gauge needle is apart from adjust knob structure, including installing in the regulation pole 1 of sewing machine casing 9, be connected with knob 2 on the regulation pole, the knob with the sewing machine casing opposite face is equipped with holding tank 3, the holding tank inner wall is equipped with a plurality of gear grooves 31, still includes elastic component 4, elastic component includes gear point 41, keep off the point including stretching into gear groove with the spacing complex primary importance in gear groove with rotate atress shrink roll-off during the knob the second place in gear groove. After the rotary knob is rotated to the position, the stop tip can stretch into the gear groove to enable the knob to be incapable of rotating easily, when the knob needs to rotate, the button is rotated forcibly, the inner wall of the accommodating groove extrudes the stop tip top, the stop tip shrinks and slides out the accommodating groove, the knob stretches into the adjacent gear groove again, the needle pitch adjusting knob structure adopting the structure is adopted, the limiting effect on the knob is achieved through the elastic piece, the structure is stable, the using effect is good, the elastic piece can be a clamp spring, and the cost is lower. Alternatively, the stop tip is in an inverted V shape and can rotate left and right. The elastic part can be contracted only when the force of the elastic part is larger than a certain degree, so that the use is convenient.

In this embodiment, as shown, the resilient member includes a foot 42 that is removably attached to the sewing machine housing. The twisting foot can be connected with the sewing machine shell through screw connection or clamping connection. The two twisting feet are fixed, under a normal state, the blocking tip arranged between the twisting feet extends into the gear groove, the blocking tip is contracted downwards when stressed, and as an optimization, the blocking tip is positioned on a line where the middle points of the two twisting feet are positioned.

In this embodiment, the foot is attached to the sewing machine housing by screws 93 as shown. The installation is convenient.

In this embodiment, as shown in the figure, the stopping tip is disposed between the two twisting legs. Stable structure and better use effect.

In this embodiment, as shown in the figure, the axial inner wall of the accommodating groove is provided with a plurality of bosses 32, and the gear groove is formed between adjacent bosses.

In this embodiment, as shown in the figure, the boss includes a first boss 321 and a second boss 322 disposed corresponding to the maximum gear of the knob, and the height of the second boss is higher than that of the first boss. The travel reminding function is achieved.

In this embodiment, the first boss apex is smooth and overly, as shown. The sliding of the stop tip is convenient, and the using effect is better.

In this embodiment, as shown in the figure, the outer wall of the knob is provided with a counter bore 21, and further includes a fastening screw 92, and the fastening screw penetrates through the counter bore to be in threaded connection with the adjusting rod. The installation is convenient.

In this embodiment, as shown in the figure, the sewing machine further comprises a pre-tightening spring 5, the pre-tightening spring is sleeved outside the adjusting rod, one end of the pre-tightening spring abuts against the inner wall of the knob, and the other end of the pre-tightening spring abuts against the outer wall of the sewing machine shell. Play the pre-tightening role and reduce the clearance.

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 the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to 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 defined otherwise.

The embodiments described with reference to the drawings are illustrative and are intended to be illustrative of the invention and should not 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 protection of the present invention.