CN218026639U - Sewing machine cloth guide device with braking function and sewing machine - Google Patents
Sewing machine cloth guide device with braking function and sewing machine Download PDFInfo
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- CN218026639U CN218026639U CN202222023184.6U CN202222023184U CN218026639U CN 218026639 U CN218026639 U CN 218026639U CN 202222023184 U CN202222023184 U CN 202222023184U CN 218026639 U CN218026639 U CN 218026639U
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- cloth guide
- sewing machine
- rotating shaft
- guide wheel
- rod
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Abstract
The utility model discloses a sewing machine leads cloth device and sewing machine with brake function aims at providing not only can be convenient strut the drum lower hem, and the gauge needle is stable moreover, can effectively solve surface fabric sewing's in-process, can change thereupon because of the tension of surface fabric, causes the surface fabric swing back and forth, and causes the gauge needle size unstable, influences sewing quality's problem sewing machine that has brake function and leads cloth device and sewing machine. A cloth guide device of a sewing machine with a brake function comprises a frame; the cloth guide wheel mechanism comprises an installation rod which is rotationally arranged on the rack through an installation rod rotating shaft, a cloth guide wheel which is rotationally arranged on the upper part of the installation rod through a cloth guide wheel rotating shaft and an installation rod rotation executing mechanism which is used for driving the installation rod to rotate around the installation rod rotating shaft, and the installation rod is fixedly connected with the installation rod rotating shaft; and the brake device comprises a brake disc arranged on the rotating shaft of the mounting rod and a brake cylinder arranged on the rack and matched with the brake disc.
Description
Technical Field
The utility model relates to a sewing machine, concretely relates to sewing machine cloth guider and sewing machine with brake function.
Background
When the existing sewing machine is used for processing the cylinder lower hem, the cylinder lower hem needs to be unfolded by utilizing the unfolding mechanism. The spreading mechanism of the sewing machine generally comprises two cloth guide wheels, when the lower hem of the cylinder is processed, the lower hem of the cylinder is sleeved on the two cloth guide wheels, and then the spreading position of one or two cloth guide wheels is adjusted to realize spreading of the lower hem of the cylinder. The spreading mechanism of the existing sewing machine generally adopts a manual adjusting mode to adjust the spreading position of the cloth guide wheel, and the operation is inconvenient; and because the sizes of the clothes are different and the sizes of the lower hem of the cylinder are different, the lower hem of the cylinder is unfolded by manually adjusting the unfolding position of the cloth guide wheel, so that the operation is more inconvenient. On the other hand, in the process of sewing the fabric, the tension of the fabric can change along with the tension, so that the fabric swings back and forth, the stitch length is unstable, and the quality of sewing stitches is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not only can be convenient strut drum lower hem, the gauge needle is stable moreover, can effectively solve the in-process of surface fabric sewing, can change thereupon because of the tension of surface fabric, causes the surface fabric swing back and forth, and causes the gauge needle size unstable, influences sewing stitch seam quality's problem sewing machine cloth guider and sewing machine that has brake function.
The technical scheme of the utility model is that:
a cloth guide device of a sewing machine with a braking function comprises:
a frame;
the cloth guide wheel mechanism comprises an installation rod which is rotatably arranged on the rack through an installation rod rotating shaft, a cloth guide wheel which is rotatably arranged on the upper part of the installation rod through a cloth guide wheel rotating shaft and an installation rod rotating executing mechanism which is used for driving the installation rod to rotate around the installation rod rotating shaft, and the installation rod is fixedly connected with the installation rod rotating shaft;
and the brake device comprises a brake disc arranged on the rotating shaft of the mounting rod and a brake cylinder arranged on the rack and matched with the brake disc.
According to the sewing machine cloth guide device with the brake function, the installation rod and the cloth guide wheel on the upper portion of the installation rod are driven to rotate through the installation rod rotation executing mechanism, so that the automatic opening of the lower hem of the cylinder is realized, the operation is convenient, and the lower hem of the cylinder can be stably opened. On the other hand, after the guide wheel rotates to prop open the lower hem of the cylinder, the brake disc is tightly held by the brake cylinder to lock the rotating shaft of the mounting rod and further lock the positions of the mounting rod and the guide wheel, so that in the fabric sewing process, although the tension of the fabric can change along with the tension, the positions of the mounting rod and the guide wheel are locked and fixed, the problem that the stitch length is unstable due to the fact that the fabric swings back and forth and the stitch length is influenced is solved, the stitch length is stable, and the stitch quality is improved.
Preferably, the cloth guide wheel mechanism further comprises a cloth guide wheel rotation driving mechanism for driving the cloth guide wheel to rotate.
Preferably, the mounting rod is a hollow mounting rod, the cloth guide wheel rotation driving mechanism comprises a driving motor and a belt wheel transmission mechanism which is connected with an output shaft of the driving motor and a rotating shaft of the cloth guide wheel, the driving motor is fixed at the lower part of the mounting rod, the output shaft of the driving motor extends into the inner cavity of the mounting rod, and the belt wheel transmission mechanism is positioned in the inner cavity of the mounting rod. According to the scheme, the driving motor is fixed at the lower part of the mounting rod, so that the mounting rod rotation executing mechanism is favorable for driving the mounting rod and the cloth guide wheel at the upper part of the mounting rod to rotate around the mounting rod rotating shaft; the belt wheel transmission mechanism is arranged in the inner cavity of the mounting rod, so that the structure compactness can be improved, and the belt wheel transmission mechanism can be prevented from contacting with fabric or other components to influence the rotation of the cloth guide wheel.
Preferably, the driving motor is located below the mounting rod rotation shaft. So, can come the gravity of balanced installation pole upper portion fabric guide wheel through driving motor, be favorable to the installation pole to rotate actuating mechanism drive installation pole and the fabric guide wheel on installation pole upper portion and rotate around the installation pole pivot.
Preferably, the upper end of the mounting rod is also provided with a baffle plate for shielding the rotating shaft of the cloth guide wheel.
Preferably, the cloth guide wheel mechanism further comprises two buffer blocks fixed on the frame, and the mounting rod is located between the two buffer blocks. So, can restrict the turned angle of installation pole through the buffer block on the one hand, on the other hand can play the cushioning effect when restricting the turned angle of installation pole.
Preferably, the buffer block is a rubber buffer block.
Preferably, the installation rod rotating shafts are distributed horizontally, and the cloth guide wheel rotating shafts are parallel to the installation rod rotating shafts.
Preferably, the brake disc is fixed to one end of the mounting lever rotating shaft by a bolt. Therefore, the brake disc is convenient to install and replace.
Preferably, the rotation executing mechanism comprises a driving cylinder and a connecting rod, the end part of a cylinder body of the driving cylinder is hinged with the rack, a piston rod of the driving cylinder is hinged with one end of the connecting rod, and the other end of the connecting rod is fixed on a rotating shaft of the mounting rod. So, can drive the installation pole pivot through driving actuating cylinder and rotate, and then drive installation pole and the fabric guide wheel on installation pole upper portion and rotate around installation pole pivot. On the other hand, the air pressure of the air source (the air pressure of the air source of the driving air cylinder) can be preset to ensure the spreading consistency of the lower hem of the cylinders with the same fabric.
A sewing machine comprises the sewing machine cloth guide device with the brake function.
The beneficial effects of the utility model are that: the novel fabric sewing machine has the advantages that the lower hem of the cylinder can be conveniently opened, the needle pitch is stable, and the problems that in the fabric sewing process, due to the fact that the tension of the fabric changes along with the lower hem of the cylinder, the fabric swings back and forth, the needle pitch is unstable, and the quality of sewing stitches is affected can be effectively solved.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a cloth guide device of a sewing machine with a braking function according to the present invention.
Fig. 2 is a side view of a cloth guide device of a sewing machine with a braking function according to the present invention.
In the figure:
a frame 1;
the cloth guide wheel mechanism 2 comprises a mounting rod rotating shaft 2.1, a mounting rod 2.2, a cloth guide wheel 2.3, a baffle 2.4, a driving cylinder 2.5, a connecting rod 2.6, a driving motor 2.7 and a belt wheel transmission mechanism 2.8;
Detailed Description
The first embodiment is as follows: as shown in fig. 1 and 2, a cloth guide device of a sewing machine with a braking function comprises a frame 1, a cloth guide wheel mechanism 2 and a braking device 3. The cloth guide wheel mechanism comprises a mounting rod 2.2 which is rotatably arranged on the rack through a mounting rod rotating shaft 2.1, a cloth guide wheel 2.3 which is rotatably arranged on the upper part of the mounting rod through a cloth guide wheel rotating shaft, and a mounting rod rotation executing mechanism which is used for driving the mounting rod to rotate around the mounting rod rotating shaft. The installation rod is fixedly connected with an installation rod rotating shaft, and the installation rod rotating shaft is rotatably arranged on the rack through a bearing or a bearing seat. The rotating shaft of the cloth guide wheel is parallel to the rotating shaft of the mounting rod, and in the embodiment, the rotating shaft of the mounting rod is horizontally distributed. The brake device 3 comprises a brake disc 3.1 arranged on the rotating shaft of the mounting rod and a brake cylinder 3.2 arranged on the frame and matched with the brake disc.
The sewing machine cloth guide device with the braking function drives the installation rod and the cloth guide wheel on the upper portion of the installation rod to rotate through the installation rod rotation executing mechanism to achieve automatic opening of the lower hem of the cylinder. On the other hand, after the guide wheel rotates to prop open the lower hem of the cylinder, the brake disc is tightly held by the brake cylinder to lock the rotating shaft of the mounting rod and further lock the positions of the mounting rod and the guide wheel, so that in the fabric sewing process, although the tension of the fabric can change along with the tension, the positions of the mounting rod and the guide wheel are locked and fixed, the problem that the stitch length is unstable due to the fact that the fabric swings back and forth and the stitch length is influenced is solved, the stitch length is stable, and the stitch quality is improved.
Specifically, the sewing machine further comprises a guide wheel (not shown in the figure) rotatably arranged on the frame, and a rotating shaft of the guide wheel is parallel to a rotating shaft of the cloth guide wheel. The lower hem of the cylinder is sleeved on the cloth guide wheel and the guide wheel, and then the installation rod and the cloth guide wheel on the upper part of the installation rod are driven to rotate through the installation rod rotation executing mechanism, so that the cloth guide wheel is far away from the guide wheel, and the lower hem of the cylinder is automatically opened.
Further, as shown in fig. 1, the rotation actuator includes a driving cylinder 2.5 and a connecting rod 2.6. The end part of the cylinder body of the driving cylinder is hinged with the frame, the piston rod of the driving cylinder is hinged with one end of the connecting rod, and the other end of the connecting rod is fixed on the rotating shaft of the mounting rod. In this embodiment, the connecting rods are distributed along the radial extension of the rotating shaft of the mounting rod. So, can drive the installation pole pivot through driving actuating cylinder and rotate, and then drive installation pole and the fabric guide wheel on installation pole upper portion and rotate around installation pole pivot. On the other hand, the air pressure of the air source (the air pressure of the air source of the driving air cylinder) can be preset to ensure the spreading consistency of the lower hem of the cylinders with the same fabric.
Further, as shown in fig. 1, the cloth guide wheel mechanism further comprises two buffer blocks 4 fixed on the frame. The mounting rod is positioned between the two buffer blocks. The two buffer blocks are used for limiting the rotation angle of the mounting rod. In this embodiment, the buffer block is a rubber buffer block. So, can restrict the turned angle of installation pole through the buffer block on the one hand, on the other hand can play the cushioning effect when restricting the turned angle of installation pole.
Further, as shown in fig. 1 and 2, the cloth guide wheel mechanism further includes a cloth guide wheel rotation driving mechanism for driving the cloth guide wheel to rotate. The mounting rod is a hollow mounting rod. The cloth guide wheel rotation driving mechanism comprises a driving motor 2.7 and a belt wheel transmission mechanism 2.8 which is connected with an output shaft of the driving motor and a rotating shaft of the cloth guide wheel. The driving motor is fixed on the lower portion of the mounting rod, an output shaft of the driving motor extends into an inner cavity of the mounting rod, and the belt wheel transmission mechanism is located in the inner cavity of the mounting rod. In this embodiment, the pulley transmission mechanism is a synchronous pulley transmission mechanism. In the embodiment, the driving motor is fixed at the lower part of the mounting rod, so that the driving force for driving the mounting rod and the cloth guide wheel at the upper part of the mounting rod to rotate around the rotating shaft of the mounting rod by the mounting rod rotation executing mechanism is reduced; the belt wheel transmission mechanism is arranged in the inner cavity of the mounting rod, so that the structure compactness can be improved, and the belt wheel transmission mechanism can be prevented from contacting with fabric or other components to influence the rotation of the cloth guide wheel.
Further, as shown in fig. 1 and 2, the driving motor 2.7 is located below the mounting rod rotating shaft 2.1. Therefore, the gravity of the cloth guide wheel on the upper part of the installation rod can be balanced through the driving motor, and the driving force for driving the installation rod to rotate the installation rod by the installation rod rotation executing mechanism and driving the cloth guide wheel on the upper part of the installation rod to rotate around the installation rod rotating shaft can be further reduced.
Furthermore, the brake disc is fixed on one end of the rotating shaft of the mounting rod through a bolt. Therefore, the brake disc is convenient to install and replace.
Further, as shown in fig. 1 and 2, a baffle 2.4 for shielding the rotating shaft of the cloth guide wheel is arranged at the upper end of the mounting rod. Specifically, the upper end of installation pole is equipped with two mounting panels that parallel, and the mounting panel parallels with the installation pole, and the guide wheel pivot passes through the bearing setting on two mounting panels, and the baffle is the U font, and the baffle passes through the bolt fastening in the upper end of installation pole.
The second embodiment is as follows: the embodiment provides a sewing machine, which comprises a cloth guide device with a braking function of the sewing machine in the first embodiment.
The above, only be the preferred embodiment of the utility model, it is not right the utility model discloses do any restriction, all according to the utility model discloses any simple modification, change and equivalent transformation that the technical essence was done to above embodiment all still belong to the technical scheme's of the utility model protection scope.
Claims (10)
1. The utility model provides a sewing machine cloth guider with brake function, characterized by includes:
a frame;
the cloth guide wheel mechanism comprises an installation rod which is rotatably arranged on the rack through an installation rod rotating shaft, a cloth guide wheel which is rotatably arranged on the upper part of the installation rod through a cloth guide wheel rotating shaft and an installation rod rotating executing mechanism which is used for driving the installation rod to rotate around the installation rod rotating shaft, and the installation rod is fixedly connected with the installation rod rotating shaft;
and the brake device comprises a brake disc arranged on the rotating shaft of the mounting rod and a brake cylinder arranged on the rack and matched with the brake disc.
2. The cloth guide device of a sewing machine with a brake function as claimed in claim 1, wherein the cloth guide wheel mechanism further comprises a cloth guide wheel rotation driving mechanism for driving the cloth guide wheel to rotate.
3. The cloth guide device with the brake function of the sewing machine as claimed in claim 2, wherein the mounting rod is a hollow mounting rod, the cloth guide wheel rotation driving mechanism comprises a driving motor and a belt wheel transmission mechanism connecting an output shaft of the driving motor and a rotating shaft of the cloth guide wheel, the driving motor is fixed at the lower part of the mounting rod, the output shaft of the driving motor extends into the inner cavity of the mounting rod, and the belt wheel transmission mechanism is positioned in the inner cavity of the mounting rod.
4. The cloth guider with brake function of sewing machine as claimed in claim 3, wherein said driving motor is located below the rotation shaft of the mounting rod.
5. The cloth guide device of the sewing machine with the brake function as claimed in claim 3 or 4, wherein the upper end of the mounting rod is further provided with a baffle plate for shielding the rotating shaft of the cloth guide wheel.
6. A cloth guide of a sewing machine with brake function as claimed in claim 1, 2, 3 or 4, wherein the cloth guide wheel mechanism further comprises two buffer blocks fixed on the frame, and the mounting rod is located between the two buffer blocks.
7. The cloth guide device of sewing machine with brake function as claimed in claim 1, 2, 3 or 4, wherein the installation rod rotating shaft is horizontally distributed, and the cloth guide wheel rotating shaft is parallel to the installation rod rotating shaft.
8. The cloth guide device of a sewing machine with a braking function as claimed in claim 1, 2, 3 or 4, wherein the brake disc is fixed to one end of the rotating shaft of the mounting rod by a bolt.
9. The cloth guide device of a sewing machine with a braking function as claimed in claim 1, 2, 3 or 4, wherein the rotation actuator comprises a driving cylinder and a connecting rod, the end of the cylinder body of the driving cylinder is hinged with the frame, the piston rod of the driving cylinder is hinged with one end of the connecting rod, and the other end of the connecting rod is fixed on the rotating shaft of the mounting rod.
10. A sewing machine characterized by comprising a sewing machine cloth guide with a braking function according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023184.6U CN218026639U (en) | 2022-07-28 | 2022-07-28 | Sewing machine cloth guide device with braking function and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222023184.6U CN218026639U (en) | 2022-07-28 | 2022-07-28 | Sewing machine cloth guide device with braking function and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218026639U true CN218026639U (en) | 2022-12-13 |
Family
ID=84343633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222023184.6U Active CN218026639U (en) | 2022-07-28 | 2022-07-28 | Sewing machine cloth guide device with braking function and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218026639U (en) |
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2022
- 2022-07-28 CN CN202222023184.6U patent/CN218026639U/en active Active
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