CN209759762U - Upper head system of sewing machine - Google Patents
Upper head system of sewing machine Download PDFInfo
- Publication number
- CN209759762U CN209759762U CN201920167559.1U CN201920167559U CN209759762U CN 209759762 U CN209759762 U CN 209759762U CN 201920167559 U CN201920167559 U CN 201920167559U CN 209759762 U CN209759762 U CN 209759762U
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- synchronizing wheel
- sewing machine
- sewing
- slip ring
- support platform
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Abstract
The utility model discloses an upper machine head system of a sewing machine, which comprises a machine body mounting plate (61) and a supporting platform (31) which are fixedly arranged on a machine shell; the machine head (2) is carried by the supporting platform (31) and can rotate relative to the supporting platform (31), and the machine head (2) is also connected with a large synchronous wheel (27) which synchronously rotates with the machine head; support platform (31) are connected with motor (21) of vertical setting, little synchronizing wheel (25) are installed to the output shaft of motor (21), big synchronizing wheel (27) with little synchronizing wheel (25) are connected through hold-in range (26). The utility model provides a sewing machine, its aircraft nose can take place rotatoryly for lift platform under the drive of motor, just so can be when sewing backstitch direction rotatory aircraft nose subassembly to avoid producing the backstitch stitch seam, improved the quality of sewing. Moreover, the transmission mode of the synchronous belt is beneficial to reducing the requirement of assembly precision and improving the running stability of the equipment.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to a head of feeding system of sewing machine.
Background
the sewing machine is an important sewing device, when complex patterns are sewn, the sewing in any direction can be generated, the sewing in different directions can generate two stitch appearances of a forward stitch and a backward stitch, and the sewing quality of the two stitch appearances is different.
Wherein, the backstitch stitch is poor in appearance, the upper thread can be loose and twisted, the intensity of the thread is reduced, the thread breakage rate is improved, and the sewing quality is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an upper machine head system of a sewing machine, which can reduce or even avoid backstitch stitches, thereby obviously improving the sewing quality; in addition, the requirement on the assembly precision is low, and the running stability of the equipment is high.
In order to achieve the above purpose, the utility model provides an upper machine head system of a sewing machine, which is provided with a machine head and a machine head connecting assembly, wherein the machine head connecting assembly comprises a machine body mounting plate fixedly arranged on a machine shell, and a supporting platform is arranged on the machine body mounting plate; the machine head is borne by the supporting platform and can rotate relative to the supporting platform, and the machine head is also connected with a large synchronizing wheel which rotates synchronously with the machine head;
The supporting platform is provided with a vertically arranged motor, the output shaft of the motor is provided with a small synchronizing wheel, and the large synchronizing wheel is connected with the small synchronizing wheel through a synchronous belt.
Preferably, the top of the supporting platform is provided with a speed reducer mounting bracket, and the speed reducer is supported by the speed reducer mounting bracket.
preferably, the speed reducer mounting bracket has a frame structure with a coupling provided between the frame structure and the top of the support platform.
Preferably, the aircraft nose with revolve the bottom fixed connection of cover, revolve the cover with supporting platform rotates and is connected, big synchronizing wheel fixed mounting revolve the top periphery of cover.
Preferably, the top of the rotating sleeve is also fixedly connected with a slip ring rotor coaxially arranged with the rotating sleeve, and the top of the slip ring rotor is rotationally connected with a slip ring stator coaxially arranged with the slip ring rotor; and the slip ring stator is fixedly connected with the supporting platform through a slip ring stator stop plate.
Preferably, the supporting platform is further connected with a back plate vertically arranged with the supporting platform, and a toggle plate is arranged between the supporting platform and the back plate.
Preferably, the slip ring stator stop plate is fixedly connected to the lifting mounting plate or the support platform.
The utility model provides a last aircraft nose system of sewing machine, its aircraft nose can take place rotatoryly for lift platform under the drive of motor, just so can be when sewing backstitch direction rotatory aircraft nose subassembly, make the mutual position of eedle and suture keep the state when following the seam always to avoided producing the backstitch stitch seam, improved the quality of sewing. Moreover, the transmission mode of the synchronous belt is beneficial to reducing the requirement of assembly precision and improving the running stability of the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall structure of an upper head system of a sewing machine according to an embodiment of the present invention;
FIG. 2 is a perspective view of the handpiece attachment assembly of FIG. 1;
fig. 3 is a schematic view of the mounting manner of the support platform in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a sewing machine, which can reduce or even avoid backstitch stitches, thereby obviously improving the sewing quality; in addition, the requirement on the assembly precision is low, and the running stability of the equipment is high.
Referring to fig. 1-3, fig. 1 is a schematic diagram illustrating an overall structure of an upper head system of a sewing machine according to an embodiment of the present invention; FIG. 2 is a perspective view of the handpiece attachment assembly of FIG. 1; fig. 3 is a schematic view of the mounting manner of the support platform in fig. 1.
In a specific embodiment, the utility model provides a sewing machine includes aircraft nose coupling assembling 1 and aircraft nose 2 on the whole, of course other structures of sewing machine because with the utility model discloses do not have direct relevance, the utility model discloses no longer mention.
The machine head 2 is a main working device and is hung by a machine head connecting component 1. The handpiece connecting assembly 1 is hooked with the housing by the body mounting plate 61, and the body mounting plate 61 thus carries a plurality of components.
The motor 21 is attached to the body attachment plate 61 (for example, it may be attached via the support platform 31), and the motor 21 may be a rotary electric machine or another power unit such as a hydraulic motor. The motor 21 is vertically disposed, that is, its output shaft is vertically disposed. Of course, the vertical arrangement is only a concept opposite to the horizontal arrangement, and does not mean that the vertical angle thereof should be absolutely limited to a certain numerical value.
The output shaft of the motor 21 is also provided with a small synchronizing wheel 25, so that the small synchronizing wheel 25 can be driven to rotate. The output shaft of the motor 21 may be directly connected to the small synchronizing wheel 25, or may be connected to the small synchronizing wheel 25 through the speed reducer 22.
The supporting platform 31 is further mounted on the body mounting plate 61, and the supporting platform 31 may be fixedly mounted with respect to the body mounting plate 61 or may slide relative to the body mounting plate 61 in the vertical direction.
The support platform 31 basically functions to support the relevant structure, and therefore, although not strictly required, it should be disposed substantially horizontally, and the fuselage mounting plate 61 is disposed substantially vertically, so that, for reasonable consideration of the overall structure, two toggle plates 32 may be disposed therebetween, the side edges of the two toggle plates 32 are respectively connected to the left and right sides of the fuselage mounting plate 61, and the bottom edges of the two toggle plates 32 are respectively fixedly connected to the left and right sides of the support platform 31.
In the figure, the cylinder mounting plate 13, the linear guide rail 14, the slider 16, the guide rail support 15, the lifting mounting plate 18, the cylinder 11, the floating joint 12, the joint connecting block 17, the lifting mounting plate 18 and other components are arranged to realize the vertical relative sliding of the support 41 relative to the fuselage mounting plate 61; as described above, when the two members do not need to slide relative to each other, the related members may be eliminated.
The head 2 is carried by the support platform 31 and can rotate with respect to the support platform 31; the outer periphery of the handpiece 2 is further sleeved with a large synchronizing wheel 27 which rotates synchronously with the handpiece, and the large synchronizing wheel 27 and the small synchronizing wheel 25 are connected through a synchronous belt 26.
The utility model provides a sewing machine, the aircraft nose can take place rotatoryly for supporting platform under the drive of motor, just so can be when sewing backstitch direction rotatory aircraft nose subassembly, make the mutual position of eedle and suture keep the state when following the seam always to avoided producing the backstitch stitch seam, improved the quality of sewing. Moreover, the transmission mode of the synchronous belt is beneficial to reducing the requirement of assembly precision and improving the running stability of the equipment.
in addition, other improvements can be made to the sewing machine provided by the utility model.
As described above, the output shaft of the motor 21 may be connected to the small synchronizing wheel 25 through the speed reducer 22; at this time, a decelerator mounting bracket 23 may be provided on the top of the support platform 31, and the decelerator 22 may be supported by the decelerator mounting bracket 23.
The reducer mounting bracket 23 may also have a frame structure, and the space inside the frame structure may be used to provide the coupling 24.
The structure of the equipment can be further optimized by the arrangement, and the stable working state is realized by a simple structure.
As previously mentioned, the head 2 is carried by the support platform 31 and can rotate with respect to the support platform 31. The connection of the head 2 to the support platform 31 can be achieved in the following manner.
A rotary sleeve 28 connected with a supporting platform 31 in a rotating mode is arranged, the rotary sleeve 28 is arranged substantially vertically, the machine head 2 is installed at the bottom of the rotary sleeve 28, and the large synchronous wheel 27 is fixedly installed on the periphery of the top of the rotary sleeve 28.
The support platform 31 may also be provided with bearings through which a relative rotational connection with the swivel nut 28 is achieved.
The bottom of the rotary sleeve 28 can be provided with a machine head connecting flange 29, and the machine head 2 can be fixedly connected with the rotary sleeve 28 through the machine head connecting flange 29.
The top of the rotating sleeve 28 can also be fixedly connected with a slip ring rotor, the slip ring rotor and the rotating sleeve 28 can be coaxially arranged, and the top of the rotating sleeve is further rotatably connected with a slip ring stator 41 which is also coaxially arranged with the rotating sleeve. The slip ring stator 41 is fixedly connected to the support platform 31 via a slip ring stator stop plate 42.
The arrangement of the rotary sleeve 28 and the related auxiliary components thereof can ensure that the rotation process of the machine head 2 is more reliable and stable through a simple structure.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The sewing machine provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. An upper machine head system of a sewing machine, which is provided with a machine head (2) and a machine head connecting component (1) and is characterized in that,
The handpiece connecting assembly (1) comprises a handpiece mounting plate (61) fixedly mounted on the casing, and the handpiece mounting plate (61) is provided with a supporting platform (31); the machine head (2) is carried by the supporting platform (31) and can rotate relative to the supporting platform (31), and the machine head (2) is also connected with a large synchronizing wheel (27) which synchronously rotates with the machine head;
Support platform (31) and install motor (21) of vertical setting, little synchronizing wheel (25) are installed to the output shaft of motor (21), big synchronizing wheel (27) with little synchronizing wheel (25) are connected through hold-in range (26).
2. The upper head system of a sewing machine according to claim 1, wherein the top of the support platform (31) is provided with a decelerator mounting bracket (23), and the decelerator (22) is supported by the decelerator mounting bracket (23).
3. Upper head system for a sewing machine according to claim 2, wherein the reducer mounting bracket (23) has a frame structure provided with a coupling (24) with the top of the support platform (31).
4. Upper head system of a sewing machine according to any of claims 1-3, wherein the head (2) is fixedly connected to the bottom of a swivel (28), the swivel (28) is rotatably connected to the support platform (31), and the large synchronizing wheel (27) is fixedly mounted on the top periphery of the swivel (28).
5. The upper head system of a sewing machine according to claim 4, wherein the top of the turnbuckle (28) is fixedly connected with a slip ring rotor coaxially arranged with the turnbuckle, and the top of the slip ring rotor is rotatably connected with a slip ring stator (41) coaxially arranged with the turnbuckle; the slip ring stator (41) is fixedly connected with the supporting platform (31) through a slip ring stator stop plate (42).
6. Upper head system for a sewing machine according to claim 5, wherein the support platform (31) is further associated with a lifting mounting plate (18) arranged perpendicularly thereto, between which a toggle plate (32) is arranged.
7. Upper head system of a sewing machine according to claim 6, wherein the slip ring stator stop plate (42) is fixedly connected to the lifting mounting plate (18) or the support platform (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167559.1U CN209759762U (en) | 2019-01-30 | 2019-01-30 | Upper head system of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167559.1U CN209759762U (en) | 2019-01-30 | 2019-01-30 | Upper head system of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN209759762U true CN209759762U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920167559.1U Active CN209759762U (en) | 2019-01-30 | 2019-01-30 | Upper head system of sewing machine |
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| CN (1) | CN209759762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629133A (en) * | 2019-01-30 | 2019-04-16 | 拓卡奔马机电科技有限公司 | The upper head system of sewing machine |
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2019
- 2019-01-30 CN CN201920167559.1U patent/CN209759762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629133A (en) * | 2019-01-30 | 2019-04-16 | 拓卡奔马机电科技有限公司 | The upper head system of sewing machine |
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