CN209836492U - Sewing machine's backstitch mechanism of making an uproar falls - Google Patents
Sewing machine's backstitch mechanism of making an uproar falls Download PDFInfo
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- CN209836492U CN209836492U CN201920058391.0U CN201920058391U CN209836492U CN 209836492 U CN209836492 U CN 209836492U CN 201920058391 U CN201920058391 U CN 201920058391U CN 209836492 U CN209836492 U CN 209836492U
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Abstract
The utility model provides a mechanism of making an uproar falls in sewing machine's backstitch belongs to sewing machine technical field. It has solved the great problem of noise when the backstitch of current flush joint machine. This mechanism of making an uproar falls in backstitch, include the gauge screw rod and can drive gauge screw rod circumferential direction's mark dish knob, the mechanism of making an uproar falls in backstitch still including fixing the erection column on the mark dish knob, the constant head tank has been seted up on the terminal surface of erection column orientation gauge screw rod, a tip of gauge screw rod extends in the constant head tank and in the constant head tank along the circumferential direction location, have the clearance that supplies the gauge screw rod along axial motion between the bottom surface of constant head tank and the terminal surface of gauge screw rod, the mechanism of making an uproar falls in the backstitch still has the spring towards keeping away from mark dish knob direction movement trend including enabling the gauge screw rod all the time. Vibration sound generated on the stitch length screw rod of the structure is greatly weakened when being transmitted to the spring, and only slightly transmitted to the mounting column, so that noise in the backstitch process is obviously reduced.
Description
Technical Field
The utility model belongs to the technical field of sewing machine, a mechanism of making an uproar falls in sewing machine's backstitch is related to.
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. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The existing sewing machine is also provided with a backstitch structure and a stitch length adjusting structure, wherein the stitch length adjusting structure generally comprises a stitch length stud and a dial knob which is fixed at one end of the stitch length stud and can be directly rotated by hands, the stitch length is directly adjusted by rotating the dial knob, the other end of the stitch length stud is tightly close to one surface of the front end of a feeding adjuster, when the sewing machine automatically backstitches, the feeding adjuster is under the action of a driving source, the surface, close to the stud, of the front end of the feeding adjuster is away from the stitch length stud, then the other surface swings to impact with the stitch length stud, the stitch length stud can transmit vibration generated at the moment to the dial knob, the dial is subjected to noise, the sound during automatic backstitch is amplified, and the flat sewing machine has high noise in the backstitch process.
Chinese patent discloses (publication number: CN 203546379U; publication number: 2014-04-16) a noise reduction buffer mechanism for sewing machine backstitch, which comprises a stitch length adjusting mechanism and a backstitch electromagnet arranged on one side of a feeding adjusting shaft of the stitch length adjusting mechanism, wherein the backstitch electromagnet comprises a shell part and a frame arranged outside the shell part, a coil is arranged in the shell part, an iron core penetrates through the shell part, the head part and the tail part of the iron core respectively extend out of the frame, the head part of the iron core is connected with the feeding adjusting shaft, the iron core is connected with a buffer device through a buffer mounting bracket, and the buffer device is arranged on one side of the frame; the buffering device comprises a buffering mounting seat, an open slot is formed in the buffering mounting seat, a buffering shaft penetrates through the buffering mounting seat, the head of the buffering shaft is arranged on a buffering mounting support, the axis of the buffering shaft is parallel to the axis of the iron core, the buffering mounting seat is fixed on a frame, a check ring is arranged on the buffering shaft in the open slot, an upper buffering spring is arranged between the check ring and the upper bottom of the open slot, a lower buffering spring is arranged between the check ring and the lower bottom of the open slot, and the buffering shaft axially moves along with the iron core.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a mechanism of making an uproar falls in sewing machine's backstitch, the utility model aims to solve the technical problem how to provide a new structure that can reduce noise when sewing machine backstitch.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a mechanism of making an uproar falls in sewing machine's backstitch, includes the gauge screw rod and can drives gauge screw rod circumferential direction's mark dish knob, a serial communication port, the mechanism of making an uproar falls in the backstitch is still including fixing the erection column on the mark dish knob, the constant head tank has been seted up on the terminal surface of erection column orientation gauge screw rod, a tip of gauge screw rod extends in the constant head tank and in the constant head tank along the circumferential direction location, have the clearance that supplies the gauge screw rod to follow axial motion between the bottom surface of constant head tank and the terminal surface of gauge screw rod, the mechanism of making an uproar falls in the backstitch still has the spring towards keeping away from mark dish knob direction movement trend including having all the.
The backstitch noise reduction mechanism is arranged on a sewing machine for use, after the backstitch noise reduction mechanism is assembled on the sewing machine, the outer end surface of the needle pitch screw rod is contacted with one side surface of the needle pitch regulator, one end part of the needle pitch screw rod extends into the positioning groove and is positioned conveniently in the inner circumference of the positioning groove, the needle pitch screw rod can be rotated through the dial knob, and a clearance is arranged between the bottom surface of the positioning groove and the end surface of the needle pitch screw rod, so that the needle pitch screw rod can move back and forth along the horizontal direction by a certain stroke, in the process of automatic backstitch, the impact of gauge needle regulator is on the outer terminal surface of gauge needle screw rod, and the gauge needle screw rod is just weakened by a wide margin when the spring is compressed towards dial knob direction translation this moment, spring play striking buffering's effect, the vibration sound that produces on the gauge needle screw rod transmits the spring, only on little transmission to the erection column, and then the noise of the reduction backstitch in-process that is showing.
In the above-mentioned mechanism of making an uproar falls in backstitch of sewing machine, the constant head tank is the square groove, the one end that the gauge needle screw rod pegged graft in the constant head tank is the square strip form. The structure realizes circumferential positioning of one end part of the needle pitch screw rod in the positioning groove, and the needle pitch screw rod can move back and forth along the horizontal direction by a certain stroke.
In the backstitch noise reduction mechanism of the sewing machine, the outer peripheral surface of the needle pitch screw is provided with the limiting convex edge, the spring is sleeved on the needle pitch screw, one end of the spring is abutted against the limiting convex edge, and the other end of the spring is abutted against the end surface of the mounting column. The spring of this structure pushes up the gauge needle screw rod outwards all the time for can play the effect of buffering when gauge needle regulator striking on the outer terminal surface of gauge needle screw rod.
In the backstitch noise reduction mechanism of the sewing machine, the spring is arranged in the positioning groove, one end of the spring is abutted against the bottom surface of the positioning groove, and the other end of the spring is abutted against the end surface of the needle pitch screw rod. The spring of this structure pushes up the gauge needle screw rod outwards all the time for can play the effect of buffering when gauge needle regulator striking on the outer terminal surface of gauge needle screw rod.
In foretell mechanism of making an uproar falls in backstitch of sewing machine, the erection column includes installation department and connecting portion, the external diameter of connecting portion is greater than the external diameter of installation department, connecting portion have the step face towards the one end of dial knob, the installation department cover is equipped with the clamp plate, a side of clamp plate is pasted mutually with the step face, another side pastes mutually with the dial knob and pastes and leans on, the clamp plate can be fixed on sewing machine's casing through the fastener. After the backstitch noise reduction mechanism is assembled on the sewing machine, the pressing plate is fixed on a machine shell of the sewing machine through a fastener, the mounting part penetrates through the pressing plate to be fixedly connected with the dial knob, the step surface is abutted against one side surface of the pressing plate, the mounting column is guaranteed to be stably mounted, and the mounting column is not loosened when the needle gauge adjuster and the needle gauge screw are impacted.
In the backstitch noise reduction mechanism of the sewing machine, the installation part is connected with the dial knob through a screw. This structure is easy to assemble the dismouting of post on the scale knob.
Compared with the prior art, the utility model discloses a mechanism of making an uproar falls in backstitch has following advantage: the gauge needle regulator striking is on the outer terminal surface of gauge needle screw rod, and the gauge needle screw rod is translated towards dial knob direction, and the spring is compressed this moment, and the spring plays the effect of striking buffering, just is weakened by a wide margin when the vibration sound that produces on the gauge needle screw rod transmits the spring, only on the small transmission to the erection column, and then the noise of the reduction backstitch in-process that is showing.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
In the figure, 1, a pitch screw; 1a, a limiting convex edge; 2. a dial knob; 3. mounting a column; 31. an installation part; 32. a connecting portion; 32a, a positioning groove; 32b, step surfaces; 4. a gap; 5. a spring; 6. pressing a plate; 7. a screw; 8. a needle pitch regulator.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1, the backstitch noise reduction mechanism of the sewing machine comprises a needle pitch screw 1 and a dial knob 2 capable of driving the needle pitch screw 1 to rotate circumferentially, and further comprises a mounting column 3 fixed on the dial knob 2, wherein a positioning groove 32a is formed in one end surface, facing the needle pitch screw 1, of the mounting column 3, one end portion of the needle pitch screw 1 extends into the positioning groove 32a and is positioned in the positioning groove 32a in the circumferential direction, in the embodiment, the positioning groove 32a is a square groove, and one end portion, inserted into the positioning groove 32a, of the needle pitch screw 1 is in a square strip shape. The clearance 4 that supplies gauge screw 1 to follow axial motion has between the bottom surface of constant head tank 32a and the terminal surface of gauge screw 1, the mechanism of making an uproar still includes can make gauge screw 1 have all the time and move the spring 5 of trend towards keeping away from dial knob 2 direction. In the process of automatic backstitch, the impact of the needle pitch regulator 8 is on the outer end face of the needle pitch screw rod 1, the needle pitch screw rod 1 translates towards the dial knob 2, the spring 5 is compressed at the moment, the spring 5 plays a role in impact buffering, vibration sound generated on the needle pitch screw rod 1 is greatly weakened when being transmitted to the spring 5, only a small amount of vibration sound is transmitted to the mounting column 3, and then noise in the backstitch process is obviously reduced.
Specifically, the outer peripheral surface of the pitch screw 1 is provided with a limiting convex edge 1a, the spring 5 is sleeved on the pitch screw 1, one end of the spring 5 is abutted against the limiting convex edge 1a, and the other end of the spring is abutted against the end surface of the mounting column 3.
As shown in fig. 1, the erection column 3 includes installation department 31 and connecting portion 32, the external diameter of connecting portion 32 is greater than the external diameter of installation department 31, be connected through screw 7 between installation department 31 and the dial knob 2, connecting portion 32 has step face 32b towards the one end of dial knob 2, installation department 31 cover is equipped with clamp plate 6, a side of clamp plate 6 is leaned on with step face 32b mutually, another side is leaned on with dial knob 2 mutually, clamp plate 6 can be fixed on sewing machine's casing through the fastener.
Example 2
This embodiment is substantially the same as embodiment 1 described above, except that: in this embodiment, the cross section of the positioning groove 32a is D-shaped, and the cross section of one end of the pitch screw 1 inserted into the positioning groove 32a is also D-shaped.
Example 3
This embodiment is substantially the same as embodiment 1 described above, except that: in the present embodiment, the spring 5 is disposed in the positioning groove 32a, and one end of the spring 5 abuts against the bottom surface of the positioning groove 32a, and the other end abuts against the end surface of the pitch screw 1.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a mechanism of making an uproar falls in backstitch of sewing machine, includes gauge screw (1) and can drive gauge screw (1) circumferential direction's mark dish knob (2), its characterized in that, the mechanism of making an uproar falls in backstitch is still including fixing erection column (3) on mark dish knob (2), constant head tank (32a) have been seted up on erection column (3) towards a terminal surface of gauge screw (1), a tip of gauge screw (1) extends in constant head tank (32a) and at the interior circumferential direction location of constant head tank (32a), have between the bottom surface of constant head tank (32a) and the terminal surface of gauge screw (1) and supply gauge screw (1) along axial motion's clearance (4), the mechanism of making an uproar falls in backstitch still including having spring (5) that can make gauge screw (1) have towards keeping away from mark dish knob (2) direction removal trend all the time.
2. The backstitch noise reduction mechanism of a sewing machine according to claim 1, wherein the positioning groove (32a) is a square groove, and one end of the pitch screw (1) inserted into the positioning groove (32a) is in a square bar shape.
3. The backstitch noise reduction mechanism of the sewing machine according to claim 1, wherein the outer peripheral surface of the needle pitch screw (1) is provided with a limiting convex edge (1a), the spring (5) is sleeved on the needle pitch screw (1), one end of the spring (5) abuts against the limiting convex edge (1a), and the other end of the spring abuts against the end surface of the mounting column (3).
4. The backstitch noise reduction mechanism of a sewing machine according to claim 1, wherein the spring (5) is disposed in the positioning groove (32a), and one end of the spring (5) abuts against the bottom surface of the positioning groove (32a) and the other end abuts against the end surface of the pitch screw (1).
5. The backstitch noise reduction mechanism of the sewing machine according to claim 1, characterized in that, the erection column (3) includes installation department (31) and connecting portion (32), the external diameter of connecting portion (32) is greater than the external diameter of installation department (31), connecting portion (32) have step face (32b) towards the one end of dial knob (2), installation department (31) cover is equipped with clamp plate (6), a side of clamp plate (6) is pasted mutually with step face (32b), another side is pasted mutually with dial knob (2) and is leaned on, clamp plate (6) can be fixed on the casing of sewing machine through the fastener.
6. Backstitch noise reduction mechanism according to claim 5, characterized in that the mounting portion (31) is connected to the dial knob (2) by means of a screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920058391.0U CN209836492U (en) | 2019-01-14 | 2019-01-14 | Sewing machine's backstitch mechanism of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920058391.0U CN209836492U (en) | 2019-01-14 | 2019-01-14 | Sewing machine's backstitch mechanism of making an uproar falls |
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| Publication Number | Publication Date |
|---|---|
| CN209836492U true CN209836492U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920058391.0U Active CN209836492U (en) | 2019-01-14 | 2019-01-14 | Sewing machine's backstitch mechanism of making an uproar falls |
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| Country | Link |
|---|---|
| CN (1) | CN209836492U (en) |
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- 2019-01-14 CN CN201920058391.0U patent/CN209836492U/en active Active
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |