CN214422866U - Pneumatic cutter of sewing machine - Google Patents
Pneumatic cutter of sewing machine Download PDFInfo
- Publication number
- CN214422866U CN214422866U CN202120324688.4U CN202120324688U CN214422866U CN 214422866 U CN214422866 U CN 214422866U CN 202120324688 U CN202120324688 U CN 202120324688U CN 214422866 U CN214422866 U CN 214422866U
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- cutter
- cutter bar
- block
- sewing machine
- connecting block
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Abstract
The utility model discloses a pneumatic cutter of a sewing machine, which comprises a cylinder and a cutter bar suitable for moving up and down; a connecting block is arranged on an extending shaft of the air cylinder, the air cylinder is suitable for driving the connecting block to move up and down, a connecting pin is connected with the connecting block and the cutter bar positioning frame, the cutter bar is connected with the cutter bar positioning frame, and the connecting block is suitable for driving the cutter bar to move up and down; the cutter bar is connected with the cutter fixing frame through the cutter seat fixing frame, the cutter blade is connected with the cutter fixing frame, and the connecting block is suitable for driving the cutter blade to move up and down; the lower knife block and the parking block are both connected with magnetic steel suitable for being induced with the inductor; the contact piece is arranged outside the insulated guide plate. The utility model discloses a pneumatic cutter direct electric control guarantees to make at every turn and can both lower sword, and sound is light.
Description
Technical Field
The utility model relates to a pneumatic cutter of sewing machine.
Background
The traditional cutter mode of the old buttonhole sewing machine is mechanical cutter setting, the pawl is ejected by the large disc ejector block, then the driving rod collides with the cutter crank, and the cutter crank is driven by the upper shaft to perform cutter setting action, so that the traditional buttonhole sewing machine is audible and unstable.
Disclosure of Invention
The utility model aims at providing a sewing machine's pneumatic cutter.
In order to realize the aim of the utility model, the utility model provides a pneumatic cutter of a sewing machine, which comprises a cylinder and a cutter bar suitable for moving up and down; a connecting block is arranged on an extending shaft of the air cylinder, the air cylinder is suitable for driving the connecting block to move up and down, a connecting pin is connected with the connecting block and the cutter bar positioning frame, the cutter bar is connected with the cutter bar positioning frame, and the connecting block is suitable for driving the cutter bar to move up and down; the cutter bar is connected with the cutter fixing frame through the cutter seat fixing frame, the cutter blade is connected with the cutter fixing frame, and the connecting block is suitable for driving the cutter blade to move up and down; the lower knife block and the parking block are both connected with magnetic steel suitable for being induced with the inductor; the contact piece is arranged outside the insulated guide plate.
Furthermore, one end of the connecting block is fixedly connected with an extending shaft of the air cylinder through a fastener, and the connecting pin is perpendicular to the axis of the extending shaft of the air cylinder.
Furthermore, a middle hole position of the cutter bar positioning frame is connected with the cutter bar, a front end hole position of the cutter bar positioning frame is fixedly connected with the connecting pin, and the connecting pin is vertical to the axis of the cutter bar; the rear end of the cutter bar positioning frame is in up-and-down sliding fit with the guide block, and the guide block is suitable for limiting the left-and-right swinging of the cutter bar positioning frame.
The wire clamping device further comprises a wire clamping device, and when the machine is stopped, a wire picking spring on the wire clamping device is contacted with the contact piece; when the contact piece is operated, the take-up spring is contacted with the contact piece and stops.
Further, when the sewing machine operates, the thread take-up spring on the thread clamping device is suitable for being pulled open by the thread to keep a certain distance with the contact piece; when the suture is broken, the thread take-up spring is suitable for returning to be contacted with the contact piece.
Further, when the magnetic steel connected with the lower cutter block is induced by the inductor, the cylinder moves; when the magnetic steel of the parking block is sensed by the sensor, the machine stops running.
Further, the inductor is double inductors, and different magnetic poles on the magnetic steel are respectively induced.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a pneumatic cutter direct electric control guarantees to make at every turn and can both lower sword, and sound is light.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a bottom view of an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
fig. 5 is a left side view of an embodiment of the present invention;
FIG. 6 is an enlarged partial view of FIG. 5;
fig. 7 is a schematic perspective view of an embodiment of the present invention;
FIG. 8 is an enlarged partial view of FIG. 7;
fig. 9 is a first schematic structural diagram of an embodiment of the present invention;
FIG. 10 is an exploded view of FIG. 9;
fig. 11 is a schematic structural diagram ii according to an embodiment of the present invention.
In the figure, a fastener 1, a cylinder mounting plate 2, a cylinder 3, a connecting block 4, a connecting pin 5, a sensor mounting plate 6, a sensor 7, a cutter feeding block 8, magnetic steel 9, a parking block 10, a large disc 11, a wire clamp 12, a contact piece 13, an insulating guide plate 14, a cutter bar positioning frame 15, a cutter bar, a cutter holder fixing frame 17, a cutter fixing frame 18, a cutter blade 19 and a guide block 20 are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 11, an embodiment of the pneumatic cutter of the sewing machine of the present invention comprises a cylinder 3 and a cutter bar 16 adapted to move up and down; a connecting block 4 is arranged on an extending shaft of the air cylinder 3, the air cylinder 3 is suitable for driving the connecting block 4 to move up and down, a connecting pin 5 is connected with the connecting block 4 and a cutter bar positioning frame 15, a cutter bar 16 is connected with the cutter bar positioning frame 15, and the connecting block 4 is suitable for driving the cutter bar 16 to move up and down; the cutter bar 16 is connected with the cutter fixing frame 18 through the cutter seat fixing frame 17, the cutter 19 is connected with the cutter fixing frame 18, and the connecting block 4 is suitable for driving the cutter 19 to move up and down; the sewing machine also comprises a lower knife block 8 and a parking block 10 which are arranged on a big disc 11 of the sewing machine, wherein the big disc 11 is arranged on the machine shell and can flexibly rotate; the lower cutter block 8 and the parking block 10 are both connected with magnetic steel 9 which is suitable for being induced with the inductor 7; the contact plate 13 is connected with the machine shell, and the insulating guide plate 14 is arranged on the outer portion of the insulating guide plate 14.
In one embodiment, one end of the connecting block 4 is fixedly connected with an extending shaft of the air cylinder 3 through a fastener 1, and the connecting pin 5 is perpendicular to the axis of the extending shaft of the air cylinder 3.
In one embodiment, the middle hole position of the cutter bar positioning frame 15 is connected with the cutter bar 16, the front end hole position of the cutter bar positioning frame 15 is fixedly connected with the connecting pin 5, and the connecting pin 5 is perpendicular to the axis of the cutter bar 16; the rear end of the cutter bar positioning frame 15 is in up-and-down sliding fit with the guide block 20, and the guide block 20 is suitable for limiting the left-and-right swinging of the cutter bar positioning frame 15.
In one embodiment, the wire clamping device 12 is further included, and when the device is stopped, a wire taking-up spring on the wire clamping device 12 is contacted with the contact piece 13; when the device is operated, the take-up spring is contacted with the contact piece 13 and stops.
In one embodiment, when the sewing machine is in operation, the thread take-up spring on the thread clamp 12 is adapted to be pulled apart by the thread to keep it at a distance from the contact piece 13; the thread take-up spring is adapted to return into contact with the contact piece 13 when the thread breaks.
In one embodiment, when the magnetic steel 9 connected with the lower cutter block 8 is induced by the inductor 7, the cylinder 3 moves; when the magnetic steel 9 of the parking block 10 is sensed by the sensor 7, the machine stops running.
In one embodiment, the inductor 7 is a dual inductor, which respectively induces different magnetic poles on the magnetic steel 9.
Under normal conditions, when the machine runs, the large disc 11 rotates, and when the machine rotates for a certain position, the magnetic steel 9 on the lower cutter block 8 is inducted by the inductor 7, and the air cylinder 3 moves to push the cutter blade 19 to do the cutting action. When the large disc 11 continues to rotate, the magnetic steel 9 on the parking block 10 is induced with the inductor 7, and the machine stops rotating. When the thread is broken, the thread take-up spring on the thread clamping device 12 loses the force of the thread to contact with the contact piece 13, and the machine stops running.
The control software involved in the utility model adopts the prior art.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The pneumatic cutter of the sewing machine is characterized by comprising a cylinder (3) and a cutter bar (16) suitable for moving up and down; a connecting block (4) is arranged on an extending shaft of the air cylinder (3), the air cylinder (3) is suitable for driving the connecting block (4) to move up and down, a connecting pin (5) is connected with the connecting block (4) and the cutter bar positioning frame (15), the cutter bar (16) is connected with the cutter bar positioning frame (15), and the connecting block (4) is suitable for driving the cutter bar (16) to move up and down; the cutter bar (16) is connected with the cutter fixing frame (18) through the cutter seat fixing frame (17), the blade (19) is connected with the cutter fixing frame (18), and the connecting block (4) is suitable for driving the blade (19) to move up and down; the lower knife block (8) and the parking block (10) are arranged on a large disc (11) of the sewing machine, and the lower knife block (8) and the parking block (10) are both connected with magnetic steel (9) suitable for being induced with the inductor (7); the contact piece (13) is connected with the machine shell, and the insulating guide plate (14) is arranged on the outer portion of the insulating guide plate (14).
2. The pneumatic cutter of sewing machine according to claim 1, wherein one end of the connecting block (4) is fixedly connected with the projecting shaft of the cylinder (3) by a fastener (1), and the connecting pin (5) is perpendicular to the axis of the projecting shaft of the cylinder (3).
3. The pneumatic cutter of sewing machine according to claim 1, characterized in that the middle hole of the cutter bar positioning frame (15) is connected with the cutter bar (16), the front end hole of the cutter bar positioning frame (15) is fixedly connected with the connecting pin (5), and the connecting pin (5) is perpendicular to the axis of the cutter bar (16); the rear end of the cutter bar positioning frame (15) is in up-and-down sliding fit with the guide block (20), and the guide block (20) is suitable for limiting the left-and-right swinging of the cutter bar positioning frame (15).
4. The pneumatic cutter of sewing machine according to claim 1, further comprising a thread gripper (12), wherein a thread take-up spring on the thread gripper (12) is in contact with the contact piece (13) when the machine is stopped; when the device is operated, the take-up spring is contacted with the contact piece (13) and stops.
5. The pneumatic cutter of sewing machine according to claim 4, characterized in that, when the sewing machine is running, the thread take-up spring of the thread gripper (12) is adapted to be pulled apart by the thread, keeping it at a distance from the contact piece (13); when the suture is broken, the thread take-up spring is suitable for returning to be in contact with the contact piece (13).
6. The pneumatic cutter of sewing machine according to claim 1, characterized in that the cylinder (3) moves when the magnetic steel (9) connected to the lower cutter block (8) is sensed by the sensor (7); when the magnetic steel (9) of the parking block (10) is sensed by the sensor (7), the machine stops running.
7. Pneumatic cutter for sewing machines according to claim 1, characterized in that said inductors (7) are double inductors, respectively inducing different poles on the magnetic steel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120324688.4U CN214422866U (en) | 2021-02-05 | 2021-02-05 | Pneumatic cutter of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120324688.4U CN214422866U (en) | 2021-02-05 | 2021-02-05 | Pneumatic cutter of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214422866U true CN214422866U (en) | 2021-10-19 |
Family
ID=78070322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120324688.4U Active CN214422866U (en) | 2021-02-05 | 2021-02-05 | Pneumatic cutter of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214422866U (en) |
-
2021
- 2021-02-05 CN CN202120324688.4U patent/CN214422866U/en active Active
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