CN214529594U - Structure is adjusted to sewing machine tooth presser foot - Google Patents
Structure is adjusted to sewing machine tooth presser foot Download PDFInfo
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- CN214529594U CN214529594U CN202120583061.0U CN202120583061U CN214529594U CN 214529594 U CN214529594 U CN 214529594U CN 202120583061 U CN202120583061 U CN 202120583061U CN 214529594 U CN214529594 U CN 214529594U
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Abstract
The utility model provides a structure is adjusted to sewing machine tooth presser foot belongs to and makes up equipment technical field. It has solved the problem that its structure is complicated of current regulation structure. The sewing machine comprises a machine shell, a presser foot lifting mechanism and a feeding mechanism consisting of a tooth lifting mechanism and a cloth feeding mechanism, wherein the tooth lifting mechanism comprises a tooth lifting connecting rod, the presser foot lifting mechanism comprises a presser foot connecting rod, the adjusting mechanism comprises a driving source, the tooth lifting connecting rod, the presser foot connecting rod and an adjusting component provided with a tooth lifting crank and a presser foot crank, the adjusting component is arranged on an output shaft of the driving source, and when the tooth lifting crank is in contact with the tooth lifting connecting rod and drives the tooth lifting connecting rod to act, the presser foot crank and the presser foot connecting rod are kept away from and are not in contact; when the presser foot crank is in contact with the presser foot connecting rod and drives the presser foot connecting rod to act, the feed lifting crank and the feed lifting connecting rod are kept away from each other and are not in contact with each other. The adjusting structure has the advantages of compact structure and concise transmission.
Description
Technical Field
The utility model belongs to the technical field of make up equipment, a sewing machine, especially a structure is adjusted to sewing machine tooth presser foot 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 requirements of the stitches of the sewing materials with different thicknesses are different, and in order to adapt to the thin and thick materials and the beautiful appearance of the stitches, the existing sewing machine is often matched with the requirements of the stitches by adjusting the height of teeth. Meanwhile, in the process of changing the sewing material, the pressure foot can be lifted and dropped, and the height of the teeth and the pressure foot need to be adjusted in order to meet different stitches and the movable pressure foot. The adjustment of the tooth height is driven by a tooth lifting mechanism, and the lifting and falling actions of the presser foot are driven by a presser foot lifting mechanism.
Chinese patent (publication number: CN211057389U, publication date: 2020.07.21) discloses a stepping backstitch presser foot lifting mechanism of a sewing machine, wherein the tooth lifting mechanism and the presser foot lifting mechanism in the proposal are independently responsible for respective driving modules, thereby ensuring that the presser foot is not moved when teeth are adjusted; when the presser foot is adjusted, the teeth are not moved. At that time, the arrangement structure of the two driving modules is complex, the number of required parts is large, the manufacturing cost of the sewing machine is increased, and the market competitiveness of the sewing machine is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem and providing a tooth presser foot adjusting structure of a sewing machine.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a structure is adjusted to sewing machine tooth presser foot, sewing machine include the casing, lift presser foot mechanism and by the feed mechanism that tooth mechanism and work feed mechanism constitute, lift tooth mechanism and include the tooth connecting rod, lift presser foot mechanism and include the presser foot connecting rod, its characterized in that: the adjusting structure comprises a driving source, the tooth lifting connecting rod, a pressure foot connecting rod and an adjusting assembly with a tooth lifting crank and a pressure foot crank, wherein the adjusting assembly is arranged on an output shaft of the driving source, and when the tooth lifting crank is in contact with the tooth lifting connecting rod and drives the tooth lifting connecting rod to act, the pressure foot crank and the pressure foot connecting rod are kept away from each other and are not in contact; when the presser foot crank is in contact with the presser foot connecting rod and drives the presser foot connecting rod to act, the feed lifting crank and the feed lifting connecting rod are kept away from each other and are not in contact with each other.
In the above structure for adjusting the tooth presser foot of the sewing machine, the feed lifting crank is provided with a first flange and a first ball, the feed lifting connecting rod is provided with a first arc-shaped guide groove and a first strip-shaped guide groove which are respectively matched with the first flange and the first ball, and the feed lifting connecting rod is hinged with the machine shell through a feed lifting shaft.
In the above structure for adjusting the tooth presser foot of the sewing machine, the presser foot crank is provided with a second flange and a second ball, the presser foot connecting rod is provided with a second arc-shaped guide groove and a second strip-shaped guide groove which are respectively matched with the second flange and the second ball, and the presser foot connecting rod is hinged with the machine shell through a presser foot shaft.
In the above structure for adjusting the tooth presser foot of the sewing machine, the first flange and the second flange are both in a semicircular structure.
In the above structure for adjusting the tooth presser foot of the sewing machine, the included angle between the feed lifting crank and the presser foot crank is A, and A is more than or equal to 30 degrees and less than or equal to 90 degrees.
In the above structure for adjusting the tooth presser foot of the sewing machine, the driving source is a stepping motor.
In the above structure for adjusting the tooth presser foot of the sewing machine, the adjusting assembly further comprises a transmission shaft, the transmission shaft is fixedly connected with an output shaft of the driving source, and the feed lifting crank and the presser foot crank are respectively and fixedly connected to the transmission shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides a drive module controls respectively through simple mechanism and lifts tooth mechanism and presser foot mechanism, mutual noninterference, reduces the use quantity of part by a wide margin, reduces sewing machine's manufacturing cost, promotes sewing machine's market competition.
2. The utility model discloses full automatization operation, a drive module not only can satisfy the demand of making up of many scenes such as thin thick material, can satisfy the special demand of making up of real-time variable needle pitch moreover.
3. The utility model discloses compact structure, transmission simple structure, step motor drive is swift rapidly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a first working state diagram of the middle feed lifting crank and the feed lifting connecting rod of the present invention.
Fig. 3 is a second working state diagram of the middle feed lifting crank and the feed lifting connecting rod of the present invention.
Fig. 4 is a first working state diagram of the middle feed lifting crank and the presser foot crank of the present invention.
Fig. 5 is a second working state diagram of the middle feed lifting crank and the presser foot crank of the present invention.
Fig. 6 is a schematic structural view of the middle lifting tooth connecting rod of the present invention.
Fig. 7 is a schematic structural view of the middle feed lifting crank of the present invention.
In the figure, 1, a drive source; 2. an output shaft of the drive source; 3. a feed lifting connecting rod; 31. a first arc-shaped guide groove; 32. a first bar-shaped guide groove; 4. a feed lifting crank; 41. a first flange; 42. a first ball bearing; 5. a feed lifting shaft; 6. a presser foot connecting rod; 61. a second arc-shaped guide groove; 62. a second strip-shaped guide groove; 7. a presser foot crank; 71. a second flange; 72. a second ball bearing; 8. a presser foot shaft.
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.
As shown in fig. 1 to 7, the sewing machine includes a machine shell, a presser foot lifting mechanism and a feeding mechanism composed of the presser tooth lifting mechanism and a cloth feeding mechanism, wherein the presser tooth lifting mechanism includes a presser foot connecting rod 3, the presser foot lifting mechanism includes a presser foot connecting rod 6, the tooth presser foot adjusting mechanism of the sewing machine includes a driving source 1, the presser tooth connecting rod 3, the presser foot connecting rod 6 and an adjusting component having a presser tooth crank 4 and a presser foot crank 7, and preferably, the driving source 1 in the embodiment is a stepping motor. The adjusting component is arranged on an output shaft 2 of the driving source, and when the feed lifting crank 4 is contacted with the feed lifting connecting rod 3 and drives the feed lifting connecting rod 3 to act, the presser foot crank 7 and the presser foot connecting rod 6 are kept away from each other and are not contacted; when the presser foot crank 7 is in contact with the presser foot connecting rod 6 and drives the presser foot connecting rod 6 to act, the feed lifting crank 4 and the feed lifting connecting rod 3 are kept away from being in non-contact. The utility model discloses compact structure, transmission simple structure, step motor drive is swift rapidly.
Specifically, a first flange 41 and a first ball 42 are arranged on the feed lifting crank 4, a first arc-shaped guide groove 31 and a first strip-shaped guide groove 32 which are respectively matched with the first flange 41 and the first ball 42 are formed in the feed lifting teeth connecting rod 3, and the feed lifting teeth connecting rod 3 is hinged with the machine shell through a feed lifting teeth shaft 5.
The presser foot crank 7 is provided with a second flange 71 and a second ball 72, the presser foot connecting rod 6 is provided with a second circular arc-shaped guide groove 61 and a second strip-shaped guide groove 62 which are respectively matched with the second flange 71 and the second ball 72, and the presser foot connecting rod 6 is hinged with the machine shell through a presser foot shaft 8.
Preferably, the first flange 41 and the second flange 71 in the present embodiment are both of a semicircular structure. The included angle between the feed lifting crank 4 and the presser foot crank 7 is A, and A is more than or equal to 30 degrees and less than or equal to 90 degrees.
The feed lifting rock shaft crank 4 and the presser foot crank 7 in the embodiment can be directly arranged on the output shaft 2 of the driving source, a transmission shaft can be additionally arranged to be fixedly connected with the output shaft 2 of the driving source, and the feed lifting rock shaft crank 4 and the presser foot crank 7 are fixedly connected to the transmission shaft respectively. The transmission shaft in the structure is convenient to replace, the replacement cost of parts is reduced, and the service life of the stepping motor is prolonged.
The utility model discloses a theory of operation does: when the sewing machine is assembled, the feed lifting crank 4 and the presser foot crank 7 are arranged on the output shaft 2 or the transmission shaft of the driving source at a certain angle, the included angle between the feed lifting crank 4 and the presser foot crank 7 is defined as A, and A is more than or equal to 30 degrees and less than or equal to 90 degrees. When the sewing machine needs to change the needle pitch, the controller rotates the output shaft 2 or the transmission shaft of the driving source to the position shown in fig. 4 through the driving source 1, namely, when the first ball 42 contacts with the first strip-shaped guide groove 32 and drives the lifting tooth connecting rod 3 to act, the second ball 72 and the second strip-shaped guide groove 62 are kept away from and do not contact, under the state, the effect that the output shaft 2 of the driving source rotates to drive the lifting tooth connecting rod 3 to move and simultaneously keep the presser foot connecting rod 6 immovable can be realized, namely, the needle pitch is changed, but the presser foot is kept immovable. When the sewing machine needs to lift the presser foot, the controller rotates the output shaft 2 of the driving source to the position shown in fig. 5 through the driving source 1, namely, when the second ball 72 is contacted with the second strip-shaped guide groove 62 and drives the presser foot connecting rod 6 to act, the first ball 42 and the first strip-shaped guide groove 32 are kept away from and not contacted, under the state, the output shaft 2 of the driving source can rotate to drive the presser foot connecting rod 6 to move and simultaneously keep the tooth lifting connecting rod 3 immovable, namely, the presser foot is lifted but can simultaneously keep the needle pitch immovable. To sum up, the utility model discloses finally make a driving source 1 can accomplish the presser foot simultaneously and do not move the needle pitch and lift two work scenes that the presser foot needle pitch is motionless. Wherein, a drive module controls respectively through simple mechanism and lifts tooth mechanism and lift presser foot mechanism, mutual noninterference, reduces the use quantity of part by a wide margin, reduces sewing machine's manufacturing cost, promotes sewing machine's market competition. Furthermore, the utility model discloses full automatization operation, a drive module not only can satisfy the demand of making up of many scenes such as thin thick material, can satisfy the special demand of making up of real-time variable needle pitch moreover.
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.
Although the terms of the driving source 1, the output shaft 2 of the driving source, the feed dog link 3, the first circular arc-shaped guide groove 31, the first strip-shaped guide groove 32, the feed dog crank 4, the first flange 41, the first ball 42, the presser foot link 6, the second circular arc-shaped guide groove 61, the second strip-shaped guide groove 62, the presser foot crank 7, the second flange 71, the second ball 72, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. The utility model provides a structure is adjusted to sewing machine tooth presser foot, sewing machine include the casing, lift presser foot mechanism and by the feed mechanism who lifts tooth mechanism and work feed mechanism and constitute, it includes tooth connecting rod (3) to lift tooth mechanism, it includes presser foot connecting rod (6) to lift presser foot mechanism, its characterized in that: the adjusting structure comprises a driving source (1), the tooth lifting connecting rod (3), a pressure foot connecting rod (6) and an adjusting assembly with a tooth lifting crank (4) and a pressure foot crank (7), wherein the adjusting assembly is arranged on an output shaft (2) of the driving source, and when the tooth lifting crank (4) is in contact with the tooth lifting connecting rod (3) and drives the tooth lifting connecting rod (3) to act, the pressure foot crank (7) and the pressure foot connecting rod (6) are kept away from each other and are not in contact with each other; when the presser foot crank (7) is in contact with the presser foot connecting rod (6) and drives the presser foot connecting rod (6) to act, the feed lifting crank (4) and the feed lifting connecting rod (3) are kept away from each other and are not in contact with each other.
2. The sewing machine tooth presser foot adjustment structure according to claim 1, characterized in that: the lifting tooth crank (4) is provided with a first flange (41) and a first ball (42), the lifting tooth connecting rod (3) is provided with a first arc-shaped guide groove (31) and a first strip-shaped guide groove (32) which are respectively matched with the first flange (41) and the first ball (42), and the lifting tooth connecting rod (3) is hinged with the shell through a lifting tooth shaft (5).
3. The sewing machine tooth presser foot adjustment structure according to claim 2, wherein: the presser foot crank (7) is provided with a second flange (71) and a second ball (72), the presser foot connecting rod (6) is provided with a second arc-shaped guide groove (61) and a second strip-shaped guide groove (62) which are respectively matched with the second flange (71) and the second ball (72), and the presser foot connecting rod (6) is hinged with the machine shell through a presser foot shaft (8).
4. The sewing machine tooth presser foot adjustment structure according to claim 3, wherein: the first flange (41) and the second flange (71) are both of a semicircular structure.
5. The sewing machine tooth presser foot adjustment structure according to claim 1, characterized in that: the included angle between the feed lifting crank (4) and the presser foot crank (7) is A, and A is more than or equal to 30 degrees and less than or equal to 90 degrees.
6. The sewing machine tooth presser foot adjustment structure according to claim 1, characterized in that: the driving source (1) is a stepping motor.
7. The sewing machine tooth presser foot adjusting structure according to claim 1 or 6, characterized in that: the adjusting component further comprises a transmission shaft, the transmission shaft is fixedly connected with an output shaft (2) of the driving source, and the feed lifting crank (4) and the presser foot crank (7) are fixedly connected to the transmission shaft respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120583061.0U CN214529594U (en) | 2021-03-22 | 2021-03-22 | Structure is adjusted to sewing machine tooth presser foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120583061.0U CN214529594U (en) | 2021-03-22 | 2021-03-22 | Structure is adjusted to sewing machine tooth presser foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214529594U true CN214529594U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120583061.0U Active CN214529594U (en) | 2021-03-22 | 2021-03-22 | Structure is adjusted to sewing machine tooth presser foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214529594U (en) |
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2021
- 2021-03-22 CN CN202120583061.0U patent/CN214529594U/en active Active
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Address after: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |