CN214736594U - Noise reduction device of sewing machine - Google Patents
Noise reduction device of sewing machine Download PDFInfo
- Publication number
- CN214736594U CN214736594U CN202121185264.0U CN202121185264U CN214736594U CN 214736594 U CN214736594 U CN 214736594U CN 202121185264 U CN202121185264 U CN 202121185264U CN 214736594 U CN214736594 U CN 214736594U
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- casing
- outer end
- knife rest
- buffer
- sewing machine
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Abstract
The utility model belongs to the technical field of sewing machine, refer in particular to a sewing machine fall device of making an uproar, including the casing and rotate the cutter axle of connecting on the casing, the cover is equipped with the knife rest crank on the cutter axle, and the knife rest crank drives by the cutter axle and rotates and its outer end can be inconsistent with the casing, knife rest articulate outer end or be provided with the buffering subassembly on the corresponding wall of casing, knife rest articulate outer end is through buffering subassembly and casing inconsistent. The utility model discloses an add a buffering subassembly between knife rest crank and casing for the impact between buffering subassembly can the effective absorption knife rest crank and the casing, thereby reduced the striking sound, avoid knife rest crank and casing to take place wearing and tearing because of the striking, effectively prolonged life between them.
Description
The technical field is as follows:
the utility model belongs to the technical field of sewing machine, refer in particular to a noise reduction device of sewing machine.
Background art:
at present, in the process that a thread trimming mechanism is driven by an electromagnet to trim threads by a sewing machine, a knife rest crank rotates and resets to collide with a sewing machine shell, the generated impact sound is large, the use environment of the sewing machine is seriously affected, and meanwhile, the knife rest crank and the shell are easy to wear, so that the service lives of the knife rest crank and the shell are shortened.
The invention content is as follows:
the utility model aims at providing a device of making an uproar falls of sewing machine, its striking between can the effective absorption knife rest crank and the casing reduces the striking sound in, still avoids knife rest crank and casing to take place wearing and tearing because of the striking, has effectively prolonged life between them.
The utility model discloses a realize like this:
the utility model provides a device of making an uproar falls in sewing machine, includes the casing and rotates the cutter axle of connecting on the casing, and the cover is equipped with the knife rest crank on the cutter axle, and the knife rest crank is driven by the cutter axle and rotates and its outer end can be inconsistent with the casing, knife rest crank's outer end or be provided with the buffering subassembly on the corresponding wall of casing, knife rest crank's outer end is through buffering subassembly and casing inconsistent.
In the above noise reduction device for the sewing machine, the buffer assembly comprises a buffer rubber pad and a buffer spring, the buffer rubber pad is fixed on the end face of the outer end of the knife rest crank, the inner end of the buffer spring is fixed on the buffer rubber pad, and the outer end of the buffer spring is a free end.
In the noise reduction device of the sewing machine, the center of the buffer rubber pad is provided with the accommodating groove hole, the inner end of the buffer spring is placed in the accommodating groove hole, and the outer end of the buffer spring is positioned outside the accommodating groove hole.
In the noise reduction device of the sewing machine, the outer peripheral wall of the buffer rubber mat is provided with the annular clamping groove, the inner end of the buffer spring is sleeved and clamped on the annular clamping groove, and the outer end of the buffer spring is located on the outer side of the buffer rubber mat.
In the above noise reduction device for the sewing machine, a mounting groove is formed in the end face of the outer end of the knife rest crank, the inner ends of the buffer rubber pad and the buffer spring are located in the mounting groove, and the outer ends of the buffer rubber pad and the buffer spring are located outside the mounting groove.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses an add a buffering subassembly between knife rest crank and casing for the impact between buffering subassembly can the effective absorption knife rest crank and the casing, thereby reduced the striking sound, avoid knife rest crank and casing to take place wearing and tearing because of the striking, effectively prolonged life between them.
Description of the drawings:
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a second embodiment of the present invention;
fig. 3 is a three-sectional view of an embodiment of the present invention.
In the figure: 1. a housing; 2. a cutter shaft; 3. a tool holder crank; 4. a cushion rubber pad; 5. a buffer spring.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
the first embodiment is as follows:
the utility model provides a device of making an uproar falls of sewing machine, includes casing 1 and rotates cutter shaft 2 of connecting on casing 1, and the cover is equipped with knife rest crank 3 on the cutter shaft 2, and knife rest crank 3 is driven by cutter shaft 2 and is rotated and its outer end can be inconsistent with casing 1, knife rest crank 3's outer end or be provided with the buffering subassembly on casing 1's the corresponding wall, knife rest crank 3's outer end is through buffering subassembly and casing 1 inconsistent.
Namely the utility model discloses an add a buffering subassembly between knife rest crank 3 and casing 1 for the impact between buffering subassembly can the active absorption knife rest crank 3 and the casing 1, thereby reduced the striking sound, avoided knife rest crank 3 and casing 1 to take place wearing and tearing because of the striking, effectively prolonged life between them.
Meanwhile, the buffering component can adopt a common buffering silica gel pad or a sponge, and in this embodiment, the buffering component comprises a buffering rubber pad 4 and a buffering spring 5, the buffering rubber pad 4 is fixed on the outer end face of the tool rest crank 3, the inner end of the buffering spring 5 is fixed on the buffering rubber pad 4, the outer end of the buffering spring 5 is a free end, namely, the double buffering effect of the buffering rubber pad 4 and the buffering spring 5 effectively absorbs the impact force of the tool rest crank 3 on the machine shell 1.
Furthermore, the concrete matching structure between the buffer spring 5 and the buffer rubber pad 4 is as follows: the center of the buffer rubber cushion 4 is provided with an accommodating groove hole, the inner end of the buffer spring 5 is placed in the accommodating groove hole, and the outer end of the buffer spring is positioned outside the accommodating groove hole. When the sewing machine control box controls the sewing machine to cut threads, the knife rest crank 3 is reversely reset to rotate to quickly impact the machine shell 1 after the thread cutting is finished, the machine shell 1 can be contacted with the buffer spring 5 firstly and then contacted with the buffer rubber cushion 4, so that the impact force of the knife rest crank 3 on the machine shell 1 is effectively absorbed, the purpose of reducing the noise is achieved, and the positioning fit between the normal knife rest crank 3 and the machine shell 1 is not influenced.
Example two:
the structure of the present embodiment is substantially the same as that of the above embodiment, and the main difference is: another matching structure is adopted between the buffer spring 5 and the buffer rubber cushion 4: the outer peripheral wall of the buffer rubber cushion 4 is provided with an annular clamping groove, the inner end of the buffer spring 5 is sleeved and clamped on the annular clamping groove, and the outer end of the buffer spring is located on the outer side of the buffer rubber cushion 4. The impact force of the tool rest crank 3 to the casing 1 is effectively absorbed, and the purpose of reducing the noise is achieved.
Example three:
the structure of this embodiment is substantially the same as that of the second embodiment, and the main difference is that: the cooperation structure between buffer spring 5 and buffering cushion 4 and knife rest crank 3 is: the mounting groove has been seted up on knife rest crank 3's the outer end terminal surface, buffering cushion 4 and buffer spring 5's the inner all is located outside the mounting groove, the outer end is located the mounting groove, be about for buffer spring 5 and buffering cushion 4 all arrange the mounting groove in, and cushion 4 and mounting groove fixed connection, not only be convenient for installation between them fixed, also be favorable to buffer spring 5 and buffer cushion 4 to be connected stably simultaneously.
Of course, the matching manner of the buffer spring 5 and the buffer rubber pad 4 in this embodiment may also adopt embodiment one, that is, the center of the buffer rubber pad 4 is provided with an accommodating groove hole, the inner end of the buffer spring 5 is placed in the accommodating groove hole, the outer end of the buffer spring is located outside the accommodating groove hole, and the buffer rubber pad 4 may be fixed in the mounting groove of the tool holder crank 3, at this time, the inner end of the buffer spring 5 may be located in the mounting groove, or may be located outside the mounting groove.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (5)
1. The utility model provides a device of making an uproar falls in sewing machine, includes casing (1) and rotates cutter axle (2) of connection on casing (1), and the cover is equipped with knife rest crank (3) on cutter axle (2), and knife rest crank (3) are driven by cutter axle (2) and are rotated and its outer end can be inconsistent with casing (1), its characterized in that: the outer end of the tool rest crank (3) or the corresponding wall surface of the casing (1) is provided with a buffer component, and the outer end of the tool rest crank (3) is abutted to the casing (1) through the buffer component.
2. The noise reduction device of a sewing machine according to claim 1, characterized in that: the buffer assembly comprises a buffer rubber pad (4) and a buffer spring (5), the buffer rubber pad (4) is fixed on the end face of the outer end of the tool rest crank (3), the inner end of the buffer spring (5) is fixed on the buffer rubber pad (4), and the outer end of the buffer spring is a free end.
3. The noise reduction device of a sewing machine according to claim 2, characterized in that: the center of the buffer rubber cushion (4) is provided with an accommodating groove hole, the inner end of the buffer spring (5) is placed in the accommodating groove hole, and the outer end of the buffer spring is positioned outside the accommodating groove hole.
4. The noise reduction device of a sewing machine according to claim 2, characterized in that: the outer peripheral wall of the buffer rubber mat (4) is provided with an annular clamping groove, the inner end of the buffer spring (5) is sleeved and clamped on the annular clamping groove, and the outer end of the buffer spring is located on the outer side of the buffer rubber mat (4).
5. The noise reduction device of a sewing machine according to claim 2 or 4, characterized in that: the mounting groove has been seted up on the outer end terminal surface of knife rest crank (3), the inner of buffering cushion (4) and buffer spring (5) all is located outside the mounting groove, the outer end is located the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121185264.0U CN214736594U (en) | 2021-05-28 | 2021-05-28 | Noise reduction device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121185264.0U CN214736594U (en) | 2021-05-28 | 2021-05-28 | Noise reduction device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214736594U true CN214736594U (en) | 2021-11-16 |
Family
ID=78626616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121185264.0U Active CN214736594U (en) | 2021-05-28 | 2021-05-28 | Noise reduction device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214736594U (en) |
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2021
- 2021-05-28 CN CN202121185264.0U patent/CN214736594U/en active Active
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