CN210826627U - Pneumatic routing and presser foot lifting mechanism of sewing machine - Google Patents
Pneumatic routing and presser foot lifting mechanism of sewing machine Download PDFInfo
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- CN210826627U CN210826627U CN201921693875.9U CN201921693875U CN210826627U CN 210826627 U CN210826627 U CN 210826627U CN 201921693875 U CN201921693875 U CN 201921693875U CN 210826627 U CN210826627 U CN 210826627U
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Abstract
The utility model discloses a pneumatic routing and presser foot lifting mechanism of a sewing machine, which comprises a cylinder, a presser bar lifting rod, a driving rod and an inductor; the extension shaft of the air cylinder is connected with a first lifting and pressing connecting rod and a second releasing connecting rod, one end of the first lifting and pressing connecting rod is connected with the second lifting and pressing connecting rod, the other end of the first lifting and pressing connecting rod is connected with a lifting and pressing executing piece, one end of the second releasing connecting rod is connected with a starting rod, the starting rod is connected with the first releasing connecting rod, the first releasing connecting rod is connected with a releasing rod, the releasing rod is connected to one end of a releasing shaft, and the other end of the releasing shaft is connected with a; one end of the pressing rod lifting rod is fixed on the machine shell through a hinge pin, the other end of the pressing rod lifting rod is connected to the machine shell through a spring, a lifting pin and a pull ring are fixed on the pressing rod lifting rod, and a pressing foot lifting assembly is connected to the pull ring; the driving rod is arranged on the shell, and the pressing rod lifting rod is suitable for abutting against the lower part of the driving rod; the sensor is suitable for detecting the position of the press rod lifting rod.
Description
Technical Field
The utility model relates to a pneumatic routing of sewing machine and lift presser foot mechanism.
Background
At present, the wire bonding and the presser foot lifting action of a sewing machine are divided into two electromagnets for driving, one electromagnet mostly acts on the wire bonding, and the other electromagnet can replace a manual foot to finish the presser foot lifting. The routing and presser foot lifting structure is complex, high in failure rate and low in reliability.
Disclosure of Invention
The utility model aims at solving the technical problem that only can accomplish the routing and lift the presser foot at present need two electro-magnets, the structure is complicated, and the fault rate is high, and the reliability is low.
In order to realize the purpose of the utility model, the utility model provides a pneumatic routing and presser foot lifting mechanism of a sewing machine, which comprises a cylinder, a presser bar lifting rod, a driving rod and an inductor; the device comprises a cylinder, a lifting and pressing connecting rod I and a wire releasing connecting rod II, wherein a projecting shaft of the cylinder is connected with the lifting and pressing connecting rod I and the wire releasing connecting rod II, one end of the lifting and pressing connecting rod I is connected with the lifting and pressing connecting rod II, the other end of the lifting and pressing connecting rod II is connected with a lifting and pressing executing piece, one end of the wire releasing connecting rod II is connected with a starting rod, the starting rod is connected with the wire releasing connecting rod I, the wire releasing connecting rod I is connected with a wire releasing rod, the wire releasing rod is connected; one end of the pressing rod lifting rod is fixed on the machine shell through a hinge pin, the other end of the pressing rod lifting rod is connected to the machine shell through a spring, a lifting pin and a pull ring are fixed on the pressing rod lifting rod, and a pressing foot lifting assembly is connected to the pull ring; the driving rod is arranged on the shell, and the press rod lifting rod is suitable for abutting against the lower part of the driving rod; the sensor is suitable for detecting the position of the press rod lifting rod.
Furthermore, the extension shaft is connected with one end of the lifting and pressing connecting rod and the thread releasing connecting rod through the support rod.
Furthermore, the second wire releasing connecting rod is connected with an actuating rod through a shaft position screw, and the actuating rod is fixed on the machine shell through a hinge pin.
Further, the first lifting and pressing connecting rod is connected with the lifting and pressing actuating piece through a shaft position screw.
Furthermore, the lower end of the pressure lifting execution piece is connected with the pressure lifting pin, and an opening in the pressure lifting execution piece, which is connected with the pressure lifting pin, is larger than the pressure lifting pin.
Compared with the prior art, the beneficial effects of the utility model are that:
adopt a cylinder to replace two electro-magnets as the routing and lift actuating mechanism of presser foot, lift through being connected to cylinder projecting shaft and press connecting rod one, loose line connecting rod two, lift and press the executive, actuating lever, loose line connecting rod one, loose line pole and loose line axle between the connection cooperation drive routing steel wire motion and accomplish the routing action, lift the presser foot action through lifting the cooperation of pressing round pin, pressure bar lifting lever and presser foot lifting unit, simple structure, the reliability is high.
Drawings
Fig. 1 is a schematic structural diagram (not in operation) of an embodiment of the present invention;
fig. 2 is a schematic structural diagram (wire bonding and presser foot lifting states) of an embodiment of the present invention;
fig. 3 is a schematic front view of an embodiment of the present invention;
fig. 4 is a rear schematic view of an embodiment of the present invention;
fig. 5 is a schematic side view of an embodiment of the present invention;
fig. 6 is an exploded view of an embodiment of the present invention.
In the figure, 1 a routing steel wire, 2 a line-loosening rod, 3 a line-loosening connecting rod I, 4 a spring-hanging screw, 5 a spring, 6 a hinge pin, 7 a machine shell, 8 a cylinder, 8-1 a first air hole, 8-1 a second air hole, 9 an extending shaft, 10 an actuating rod, 11 a support rod, 12 a first lifting connecting rod I, 13 a fixing frame, 14 a second lifting connecting rod, 15 shaft position screws, 16 side cover plates, 17 fasteners, 18 a lifting actuating part, 19 a lifting pin, 20 a pressing rod lifting rod, 21 a pressing foot lifting assembly, 22 a pull ring, 23 a line-loosening shaft, 24 a line-loosening connecting rod II, 25 a driving rod, 26 a sensor mounting plate and 27 a sensor.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-6, the present invention discloses an embodiment of a pneumatic wire bonding and presser foot lifting mechanism of a sewing machine, a wire bonding wire 1 is installed on the right side of a thread releasing shaft 23 and fixed by a fastener 17, then the thread releasing shaft 23 is penetrated from the right side of a machine shell 7 to the left side to be installed with a thread releasing rod 2 and fixed by the fastener 17, a presser bar lifting rod 20 is fixed on the machine shell 7 by a hinge pin 6 and the fastener 17, a spring hanging screw 4 is installed in the presser bar lifting rod 20 in the hole site to the left side, and a presser pin 19 is installed in the middle hole to the right side. The lower end of the pull ring 22 is hung in the middle upper end of the press rod lifting rod 20 to pull the press lifting assembly 21, and the driving rod 25 is installed on the machine shell 7 through the hinge pin 6. The side cover plate 16 is installed on the side of the machine shell 7 through a fastener 17, the other 8 cylinders are installed on the side cover plate 16 and are fixedly installed through the fastener 17, the inductor installation plate 26 is fixedly installed on the side cover plate 16, and the inductor 27 is installed on the inductor installation plate 26. The cylinder 8 is provided with an extension shaft 9, and the cylinder 8 is fixedly provided with a fixed frame 13 by a fastener 17. The front section of the extending shaft 9 of the cylinder is also provided with a hole, and the support rod 11 sequentially penetrates through the first lifting and pressing connecting rod 12, the front section hole of the extending shaft 9 and the second releasing connecting rod 24 so as to connect the first lifting and pressing connecting rod 12 and the second releasing connecting rod 24 to the extending shaft 9. One end of the pressure lifting connecting rod II 14 is fixed on the fixed frame 13 through a shaft position screw 15, and the other end of the pressure lifting connecting rod II is connected on the pressure lifting connecting rod I12. The front end of the first lifting and pressing connecting rod 12 is fixedly provided with a lifting and pressing executing part 18 through a shaft position screw 15, a lifting and pressing pin 19 is sleeved on an opening at the lower end of the lifting and pressing executing part 18, the vertical distance between the opening and the lower part is larger than that of the lifting and pressing pin 19, a needed sewing thread for next sewing is reserved in advance in a routing mode after sewing is completed, then the presser foot is lifted, the opening at the lower end of the lifting and pressing executing part 18 is larger than the diameter of the lifting and pressing pin 19, and the extra stroke is the routing stroke. The actuating rod 10 is installed on the machine shell 7 through a hinge pin 6 and a fastener, the other end of the second release link 24 is installed at the lower hole position of the actuating rod 10 through a shaft screw 15, the middle hole position of the actuating rod 10 is connected with the first release link 3 through the shaft screw 15, and the other end of the first release link 3 is connected with the release rod 2 through the shaft screw 15. The spring 5 is connected with a spring hanging screw 4 on the machine shell 7 and a spring hanging screw 4 on the press rod lifting rod 20.
The working principle of the mechanism is as follows:
when the machine is not ventilated and not powered, the spring 5 pulls the press rod lifting rod 20 to lift up until the press rod lifting rod 20 stops moving when abutting below the driving rod 25.
When the machine is electrified and ventilated, the first air hole 8-1 of the pneumatic switch cylinder 8 is pressed to enter air, the second air hole 8-2 is exhausted, the extension shaft 9 extends outwards to drive the first lifting and pressing connecting rod 12 and the second releasing connecting rod 24 connected with the front section of the extension shaft 9, and the front end of the first lifting and pressing connecting rod 12 drives the lifting and pressing executing piece 18 to move downwards due to the relation of the second lifting and pressing connecting rod 14. The second wire releasing connecting rod 24 continuously drives the starting rod 10 to rotate forwards, so that the first wire releasing connecting rod 3 is driven to move, the wire releasing rod 2 is driven to rotate along with the first wire releasing connecting rod, and finally the wire bonding steel wire 1 is driven to move through rotation of the wire releasing shaft 23.
Because the opening at the lower end of the lifting and pressing execution part 18 is larger than the lifting and pressing pin 19, the routing movement is completed in advance, after the routing movement is completed, the opening at the lower end of the lifting and pressing execution part 18 goes through the idle stroke, the upper end surface is contacted with the lifting and pressing pin 19, finally the pressing rod lifting rod 20 is pressed down, and the pressing rod lifting rod 20 drives the pull ring 22 so as to drive the pressing foot lifting assembly 21 to complete the pressing foot lifting action. After the sewing material is put in, the pneumatic pressure-raising control switch is pressed down again, the first air hole 8-1 of the air cylinder 8 gives out air, the second air hole 8-2 gives in air, the extension shaft 9 retracts inwards to drive the pressure-raising connecting rod I12 to pull back, the pressure-raising executive component 18 lifts up to drive the pressure bar lifting rod 20 to rotate upwards, the pressure foot is lowered, and when the pressure bar lifting rod 20 abuts against the driving rod 25, the air cylinder 8 stops moving.
When the hook spring screw 4 installed on the presser bar lifting rod 20 is opposite to the sensor 27, the sensor 27 detects the presser bar lifting rod 20, and at this time, the sewing switch is pressed, and the machine starts to work to sew the keyhole. If the sensor 27 cannot detect the hook spring screw 4, that is, the presser bar lifting lever 20, the sewing switch is pressed to perform an ineffective operation, and the machine is not started.
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 (5)
1. The pneumatic routing and presser foot lifting mechanism of the sewing machine is characterized by comprising a cylinder (8), a presser bar lifting rod (20), a driving rod (25) and a sensor (27); an extension shaft (9) of the air cylinder (8) is connected with a first lifting and pressing connecting rod (12) and a second releasing connecting rod (24), one end of the first lifting and pressing connecting rod (12) is connected with a second lifting and pressing connecting rod (14), the other end of the first lifting and pressing connecting rod is connected with a lifting and pressing executing piece (18), one end of the second releasing connecting rod (24) is connected with a starting rod (10), the starting rod (10) is connected with a first releasing connecting rod (3), the first releasing connecting rod (3) is connected with a releasing rod (2), the releasing rod (2) is connected to one end of a releasing shaft (23), and the other end of the releasing shaft (23) is connected with a routing steel wire (1); one end of the press rod lifting rod (20) is fixed on the machine shell (7) through a hinge pin (6), the other end of the press rod lifting rod is connected to the machine shell (7) through a spring (5), a press lifting pin (19) and a pull ring (22) are fixed on the press rod lifting rod (20), and a press lifting assembly (21) is connected to the pull ring (22); the driving rod (25) is arranged on the shell (7), and the press rod lifting rod (20) is suitable for abutting against the lower part of the driving rod (25); the sensor (27) is adapted to detect the position of the press bar lifting rod (20).
2. The pneumatic marking and presser foot lifting mechanism of sewing machine according to claim 1, wherein said projecting shaft (9) is connected to one end of the first lifting link (12) and the second releasing link (24) through a support rod (11).
3. The pneumatic stitch bonding and presser foot lifting mechanism of sewing machine according to claim 2, wherein said second thread releasing link (24) is connected to the actuating lever (10) by a shaft screw (15), and said actuating lever (10) is fixed to said housing (7) by a hinge pin (6).
4. The pneumatic stitch bonding and presser foot lifting mechanism of sewing machine as claimed in claim 3, wherein said first lifting link (12) is connected to said lifting actuator (18) by means of a shaft screw (15).
5. The pneumatic lining and presser foot lifting mechanism of sewing machine according to claim 2, characterized in that the lower end of the lifting and pressing actuator (18) is connected with the lifting and pressing pin (19), and the opening of the lifting and pressing actuator (18) connected with the lifting and pressing pin (19) is larger than the lifting and pressing pin (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693875.9U CN210826627U (en) | 2019-10-11 | 2019-10-11 | Pneumatic routing and presser foot lifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693875.9U CN210826627U (en) | 2019-10-11 | 2019-10-11 | Pneumatic routing and presser foot lifting mechanism of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN210826627U true CN210826627U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921693875.9U Active CN210826627U (en) | 2019-10-11 | 2019-10-11 | Pneumatic routing and presser foot lifting mechanism of sewing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663256A (en) * | 2020-06-24 | 2020-09-15 | 拓卡奔马机电科技有限公司 | Thread loosening device and buttonholing machine |
-
2019
- 2019-10-11 CN CN201921693875.9U patent/CN210826627U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663256A (en) * | 2020-06-24 | 2020-09-15 | 拓卡奔马机电科技有限公司 | Thread loosening device and buttonholing machine |
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