CN217127708U - Upper tow boat mechanism of sewing machine - Google Patents
Upper tow boat mechanism of sewing machine Download PDFInfo
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- CN217127708U CN217127708U CN202122897289.XU CN202122897289U CN217127708U CN 217127708 U CN217127708 U CN 217127708U CN 202122897289 U CN202122897289 U CN 202122897289U CN 217127708 U CN217127708 U CN 217127708U
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- roller
- swing arm
- shaft
- driving
- upper tug
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Abstract
The utility model discloses a last tow boat mechanism of sewing machine, include: the roller is arranged above the working table of the sewing machine; the roller wheel bracket is rotatably arranged on the roller wheel bracket; the mounting bracket is provided with a transversely extending kidney-shaped groove; and the fastening part penetrates through the kidney-shaped groove and is connected with the roller bracket. The utility model discloses can promote the convenience of use.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to a sewing machine's last tow boat mechanism.
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. And derives the artistic forms of hand-push embroidery, computer embroidery, etc.
The sewing machine is composed of four parts of machine head, machine base, transmission and accessories. The head is an essential part of the sewing machine. The sewing machine consists of four mechanisms of material needling, thread hooking, thread picking and feeding, auxiliary mechanisms of winding, material pressing, tooth falling and the like, and the motion of the mechanisms is reasonably matched and works circularly to sew up sewing materials. The machine base is divided into two forms of a bedplate and a machine box. The table of the table type machine base plays a role of supporting the machine head and is used as a working table during sewing operation.
The feeding mechanism in the prior art cannot be adjusted, and cannot be adjusted according to the position of specific fabric, so that the feeding mechanism is inconvenient to use in the feeding process.
SUMMERY OF THE UTILITY MODEL
The utility model provides an upper tug mechanism of sewing machine, it can promote the convenience of use.
In order to solve the technical problem, the utility model provides a last tow boat mechanism of sewing machine, include:
the roller is arranged above the working table of the sewing machine;
the roller is rotatably arranged on the roller bracket;
the mounting bracket is provided with a transversely extending kidney-shaped groove;
and the fastening part penetrates through the kidney-shaped groove and is connected with the roller bracket.
Preferably, the upper tug mechanism further comprises a connecting swing arm, a driving connecting rod and a driving swing arm, wherein two ends of the driving connecting rod are respectively movably connected with the connecting swing arm and the driving swing arm, and the connecting swing arm is connected with the roller and used for driving the roller to rotate.
Preferably, in the above technical solution, the upper tug mechanism further includes a swing shaft, and the driving swing arm is connected to the swing shaft.
Preferably, the upper tug mechanism further comprises a first connecting shaft and a second connecting shaft, the first connecting shaft is connected with the connecting swing arm, a first ball head portion is arranged on the first connecting shaft, the second connecting shaft is connected with the driving swing arm, a second ball head portion is arranged on the second connecting shaft, and two ends of the driving connecting rod are respectively in universal fit with the first ball head portion and the second ball head portion.
Preferably, in the above technical solution, the driving swing arm is detachably connected to the swing shaft.
Preferably, as for the above technical solution, a clamping sleeve is arranged at an end of the driving swing arm, the clamping sleeve is clamped on the swing shaft, and the clamping sleeve is locked and positioned on the swing shaft through a fastener.
Preferably, in the above technical solution, the roller is a unidirectional rotation roller.
Preferably, the unidirectional rotating roller comprises at least one unidirectional bearing, an inner ring of the unidirectional bearing is mounted on the roller bracket through a rotating shaft, and the connecting swing arm is connected with an outer ring of the unidirectional bearing.
Preferably, in the above technical solution, the outermost side of the roller is a soft layer.
Preferably, the number of the rollers is two.
The utility model provides an upper tug mechanism of a sewing machine, which comprises a roller, a roller bracket, a mounting bracket and a fastening part, wherein the roller is positioned above a working table of the sewing machine and is used for contacting with the surface of the fabric, the surface of the fabric is conveyed by the friction between the surface of the roller and the surface of the fabric and the rotation of the roller, simultaneously the upper tug mechanism is matched with a lower tug to work together, the roller is rotatably arranged on the roller bracket so that the roller can rotate relative to the roller bracket, the mounting bracket is provided with a kidney-shaped groove, the fastening part is arranged in the kidney-shaped groove, the roller bracket is arranged on the mounting bracket by the fastening part, the fastening part can be arranged at any position in the kidney-shaped groove, therefore, the roller of the upper tug mechanism of the utility model can be adjusted along the transverse direction, the contact position of the upper tug mechanism and the fabric can be adjusted according to the specific requirement, which can improve the convenience of use.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Fig. 1 is a schematic perspective view of an upper tug mechanism of a sewing machine according to the present invention;
FIG. 2 is a schematic view of a connection structure of a roller and a roller bracket according to an embodiment of the present invention;
FIG. 3 is a schematic view showing a connection structure of an upper tug mechanism and a lower tug mechanism in an embodiment of the present invention
In the figure: 10. a roller; 20. a roller bracket; 30. mounting a bracket; 40. connecting the swing arm; 50. a fastening member; 60. a first connecting shaft; 70. a second connecting shaft; 80. a drive link; 90. driving the swing arm; 100. a swing shaft; 200. a lower tug mechanism; 300. a sewing machine table; 101. a one-way bearing; 102. a soft layer; 301. a kidney-shaped groove; 601. a first ball head portion; 701. a second ball head portion; 801. connecting the rod body; 802. a second ball joint connecting member; 803. a first ball head connecting member; 901. and (5) clamping sleeves.
Detailed Description
To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, 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 the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 3, an embodiment of the present invention provides an upper tug mechanism of a sewing machine, including:
a roller 10 disposed above the sewing machine table 300;
the roller bracket 20 is provided with the roller 10 which is rotatably arranged on the roller bracket 20;
the mounting bracket 30 is provided with a waist-shaped groove 301 extending towards the transverse direction on the mounting bracket 30;
and a fastening part 50, wherein the fastening part 50 is connected with the roller bracket 20 through the kidney-shaped groove 301.
The embodiment provides an upper tug mechanism of a sewing machine, which comprises a roller 10, a roller bracket 20, a mounting bracket 30 and a fastening part 50, wherein the roller 10 is positioned above a working table 300 of the sewing machine, the roller 10 is used for contacting with the surface of a fabric, the surface of the roller 10 is rubbed with the surface of the fabric, the fabric is conveyed through the friction between the surface of the roller 10 and the surface of the fabric, the roller 10 is rotated by the rotation of the roller 10, the sewing mechanism finishes the sewing work of the fabric in the moving process of the fabric, meanwhile, the roller 10 is matched with a lower tug mechanism 200, the roller 10 is rotatably arranged on the roller bracket 20, so that the roller 10 can rotate relative to the roller bracket 20, a kidney-shaped groove 301 is arranged on the mounting bracket 30, the fastening part 50 is arranged in the kidney-shaped groove 301, the roller bracket 20 is arranged on the mounting bracket 30 through the fastening part 50, and the fastening part 50 can be arranged at any position in the kidney-shaped groove 301, therefore the utility model discloses an its gyro wheel 10 of last tow boat mechanism can be followed and transversely carried out position adjustment, can adjust the contact position with the surface fabric according to the sutural surface fabric of concrete need, and it can promote the convenience of use.
Specifically, the fastening member 50 in the present embodiment may be an existing fastening bolt, such as a hexagon socket head cap screw, and the roller 10 in the present embodiment is mounted on the roller bracket 20 through a rotation shaft.
In a further implementation manner of this embodiment, the upper tug mechanism further includes a connecting swing arm 40, a driving connecting rod 80, and a driving swing arm 90, two ends of the driving connecting rod 80 are respectively movably connected with the connecting swing arm 40 and the driving swing arm 90, and the connecting swing arm 40 is connected with the roller 10 for driving the roller 10 to rotate.
Drive connecting rod 80 through the luffing motion of drive swing arm 90 in this embodiment from top to bottom movable, drive connecting rod 80 from top to bottom movable then drives and connects swing arm 40 swing, the swing of connecting swing arm 40 then drives gyro wheel 10 and rotates, gyro wheel 10's drive mechanism is simple structure not only in this embodiment, the transmission is stable, and long distance transmission can be realized to its overall structure, can promote whole drive mechanism's setting and installation, in addition, drive mechanism in this embodiment can also be convenient for realize gyro wheel 10's position adjustment, particularly, this gyro wheel 10's drive mechanism is owing to be connected with gyro wheel 10 when gyro wheel 10 carries out position adjustment, therefore its whole drive mechanism also needs to carry out position change, and drive mechanism in this embodiment can not receive the change of gyro wheel 10 position adjustment.
In a further embodiment of this embodiment, the upper tug mechanism further comprises a swing shaft 100, and the driving swing arm 90 is connected to the swing shaft 100.
In this embodiment, the swing shaft 100 rotates forward and backward to drive the swing arm 90 to swing up and down, which facilitates the driving mechanism of the roller 10 to realize swing transmission.
In a further implementation manner of this embodiment, the upper tug mechanism further includes a first connecting shaft 60 and a second connecting shaft 70, the first connecting shaft 60 is connected to the connecting swing arm 40, a first ball head 601 is disposed on the first connecting shaft 60, the second connecting shaft 70 is connected to the driving swing arm 90, a second ball head 701 is disposed on the second connecting shaft 70, and two ends of the driving connecting rod 80 are respectively in universal fit with the first ball head 601 and the second ball head 701.
In the embodiment, when the roller 10 is adjusted in the transverse position, the driving connecting rod 80 needs to move to the side, and two ends of the driving connecting rod 80 in the embodiment are respectively and universally matched with the first spherical head part 601 and the second spherical head part 701, so that the movable connection of the driving connecting rod 80 can be met, and the position change can be realized conveniently, and therefore the position adjustment of the roller 10 is more conveniently realized.
Specifically, the driving link 80 in this embodiment includes a connecting rod 801, a first ball joint member 803, and a second ball joint member 802, two ends of the connecting rod 801 are respectively connected to the first ball joint member 803 and the second ball joint member 802 by threads, and the first ball joint member 803 and the second ball joint member 802 are provided with inner spherical surfaces that are engaged with outer spherical surfaces of the first ball head portion 601 and the first ball head portion 601.
In a further embodiment of the present embodiment, the driving swing arm 90 is detachably connected to the swing shaft 100.
The driving swing arm 90 in this embodiment is detachably connected to the swing shaft 100, and it is possible to adjust the mounting position of the driving swing arm 90, and in addition, it is possible to facilitate mounting and replacement of each component.
In a further possible embodiment of this embodiment, the end of the driving swing arm 90 is provided with a clamping sleeve 901, the clamping sleeve 901 is arranged on the swing shaft 100 in a clamping manner, and the clamping sleeve 901 is locked and positioned on the swing shaft 100 by a fastener.
The clamping sleeve 901 in this embodiment is sleeved on the swing shaft 100, the clamping sleeve 901 has an opening, mounting holes are formed in two sides of the opening, a fastener is mounted in the mounting holes, the clamping sleeve 901 is clamped and positioned on the swing shaft 100 by screwing the fastener, in this embodiment, the clamping sleeve 901 is adopted to realize detachable connection between the driving swing arm 90 and the swing shaft 100, and the driving swing arm 90 can be mounted and dismounted more conveniently.
In a further implementation manner of the present embodiment, the roller 10 is a unidirectional rotation roller.
In a further implementation manner of the present embodiment, the unidirectional rotation roller includes at least a unidirectional bearing 101, an inner ring of the unidirectional bearing 101 is mounted on the roller bracket 20 through a rotating shaft, and the connecting swing arm 40 is connected with an outer ring of the unidirectional bearing.
The unidirectional rotation roller in this embodiment adopts the unidirectional bearing 101, so that the overall structure is not only simple in structure but also can facilitate unidirectional rotation.
In a further implementation manner of the present embodiment, the outermost side of the roller 10 is the soft layer 102.
The outermost side of the roller 10 in this embodiment is provided with the soft layer 102, which can prevent the fabric from being damaged when contacting with the fabric, and can increase the contact friction force to prevent slipping.
In a further embodiment of this embodiment, the number of rollers 10 is two.
The two rollers 10 in the embodiment can be adjusted, so that the conveying of different fabrics can be met by adjusting the distance between the two rollers 10.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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 at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a last tow boat mechanism of sewing machine which characterized in that includes:
the roller is arranged above the working table of the sewing machine;
the roller is rotatably arranged on the roller bracket;
the mounting bracket is provided with a transversely extending kidney-shaped groove;
and the fastening part penetrates through the kidney-shaped groove and is connected with the roller bracket.
2. The upper tug mechanism of claim 1 further comprising a connecting swing arm, a driving connecting rod and a driving swing arm, wherein two ends of the driving connecting rod are respectively movably connected with the connecting swing arm and the driving swing arm, and the connecting swing arm is connected with the roller for driving the roller to rotate.
3. The upper tug mechanism of claim 2 further comprising a swing shaft, wherein said drive swing arm is coupled to said swing shaft.
4. The upper tug mechanism of claim 2 further comprising a first connecting shaft and a second connecting shaft, wherein the first connecting shaft is connected with the connecting swing arm, the first connecting shaft is provided with a first ball head portion, the second connecting shaft is connected with the driving swing arm, the second connecting shaft is provided with a second ball head portion, and two ends of the driving connecting rod are respectively in universal fit with the first ball head portion and the second ball head portion.
5. The upper tug mechanism of claim 3 wherein said drive swing arm is removably connected to said swing shaft.
6. The upper tug mechanism of claim 3 wherein a clamping sleeve is arranged at the end of the driving swing arm and is clamped on the swinging shaft, and the clamping sleeve is locked and positioned on the swinging shaft through a fastener.
7. The upper tug mechanism of claim 2 wherein said roller is a single direction rotation roller.
8. The upper tug mechanism of claim 7, wherein the unidirectional rotary roller comprises at least one unidirectional bearing, an inner ring of the unidirectional bearing is mounted on the roller bracket through a rotating shaft, and the connecting swing arm is connected with an outer ring of the unidirectional bearing.
9. The upper tug mechanism of claim 1 wherein an outermost side of the roller is a soft layer.
10. The upper tug mechanism of claim 1 wherein said number of rollers is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122897289.XU CN217127708U (en) | 2021-11-24 | 2021-11-24 | Upper tow boat mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122897289.XU CN217127708U (en) | 2021-11-24 | 2021-11-24 | Upper tow boat mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217127708U true CN217127708U (en) | 2022-08-05 |
Family
ID=82617403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122897289.XU Active CN217127708U (en) | 2021-11-24 | 2021-11-24 | Upper tow boat mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217127708U (en) |
-
2021
- 2021-11-24 CN CN202122897289.XU patent/CN217127708U/en active Active
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