CN118516811A - Differential structure and sewing machine - Google Patents
Differential structure and sewing machine Download PDFInfo
- Publication number
- CN118516811A CN118516811A CN202310155160.2A CN202310155160A CN118516811A CN 118516811 A CN118516811 A CN 118516811A CN 202310155160 A CN202310155160 A CN 202310155160A CN 118516811 A CN118516811 A CN 118516811A
- Authority
- CN
- China
- Prior art keywords
- differential
- tooth
- feed
- shaft
- crank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/08—Work-feeding means with feed dogs having horizontal and vertical movements with differential feed motions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
本发明提供了一种差动结构及缝纫机，属于缝纫设备技术领域。本差动结构包括主轴、送布轴、抬牙轴、送布牙架和差动牙架，送布轴和抬牙轴分别从动连接于主轴上，主轴和抬牙轴上连接有用于驱动送布牙架和差动牙架上下移动的抬牙组件，送布轴上设置有用于驱动送布牙架左右摆动的送布组件，差动牙架上铰接有差动连杆，送布轴上还安装有差动曲柄，差动曲柄上具有呈圆弧形的滑槽，差动连杆的一个端部上安装有连接销，连接销能够在滑槽中滑动且定位在滑槽上，差动连杆的另一端部上的铰接点位于滑槽的圆心上。本差动结构在最大针距下，调节差动的大小时，差动牙与针板上齿槽的边缘的距离始终保持不变。
The present invention provides a differential structure and a sewing machine, which belong to the technical field of sewing equipment. The differential structure includes a main shaft, a cloth feed shaft, a tooth lifting shaft, a cloth feed tooth frame and a differential tooth frame. The cloth feed shaft and the tooth lifting shaft are respectively connected to the main shaft, and the main shaft and the tooth lifting shaft are connected with a tooth lifting assembly for driving the cloth feed tooth frame and the differential tooth frame to move up and down. The cloth feed shaft is provided with a cloth feed assembly for driving the cloth feed tooth frame to swing left and right. A differential connecting rod is hinged on the differential tooth frame, and a differential crank is also installed on the cloth feed shaft. The differential crank has an arc-shaped slide groove. A connecting pin is installed on one end of the differential connecting rod, and the connecting pin can slide in the slide groove and be positioned on the slide groove. The hinge point on the other end of the differential connecting rod is located at the center of the slide groove. When the differential size is adjusted under the maximum stitch length, the distance between the differential tooth and the edge of the tooth groove on the needle plate remains unchanged.
Description
Technical Field
The invention belongs to the technical field of sewing equipment, and relates to a differential structure and a sewing machine.
Background
In the sewing process of the sewing machine, the differential motion needs to be regulated to adapt to different process requirements. The prior small square head flat seaming machine has larger position change of the front and rear differential teeth after differential size adjustment, so that the gap between the differential teeth and tooth grooves on a needle plate is larger, and the cloth feeding efficiency is reduced when thick material bone pressing processes are performed.
It can be seen that the prior art has certain drawbacks.
Disclosure of Invention
The present invention provides a differential structure for solving the above problems in the prior art, and the technical problems to be solved by the present invention are as follows: how to keep the gap between the differential tooth and the edge of the tooth slot unchanged after the differential is adjusted.
The aim of the invention can be achieved by the following technical scheme:
The differential structure comprises a main shaft, a cloth feeding shaft, a cloth lifting shaft, a cloth feeding rack and a differential rack, wherein the cloth feeding shaft and the cloth lifting shaft are respectively connected to the main shaft in a driven mode, a cloth lifting assembly used for driving the cloth feeding rack and the differential rack to move up and down is connected to the main shaft and the cloth lifting shaft, the cloth feeding shaft is provided with a cloth feeding assembly used for driving the cloth feeding rack to swing left and right, and the differential rack is hinged with a differential connecting rod.
The sewing machine comprises a sewing machine shell, a needle plate, a tooth slot, a feed dog, a differential tooth, a feed dog and a differential tooth, wherein the tooth slot is arranged on the needle plate, the feed dog is arranged on the upper part of the feed dog, the differential tooth is arranged on the upper part of the differential tooth, a feed dog shaft is driven to swing when a main shaft of the differential structure rotates, the main shaft and the feed dog shaft drive the feed dog and the differential tooth to move up and down through a feed dog assembly, the feed dog shaft drives the feed dog to move left and right through the feed dog assembly, the feed dog also drives the differential tooth to move left and right through a differential crank and a differential connecting rod, and the feed dog and the differential tooth move up and down and back and forth, so that feeding is realized.
In the differential structure, a connecting pin arranged on one end part of a differential connecting rod is fixed on a chute through a locating piece, when the locating piece is loosened, the connecting pin can slide in the chute, the other end part of the differential connecting rod is hinged with a differential tooth rack, a hinge point of the connecting pin and the differential tooth rack is positioned on the circle center of the chute, and when the connecting pin slides in the chute, the moving track of the connecting pin is consistent with the extending direction of the chute.
When the differential tooth moves to the leftmost end, the distance between the differential tooth and the edge of the tooth groove on the needle plate is nearest, and when the upper and lower positions of the connecting pins on the sliding grooves are adjusted, the differential tooth frame and the differential tooth cannot move forwards and backwards, so that the distance between the differential tooth and the edge of the tooth groove on the needle plate is kept constant when the differential tooth is adjusted under the maximum needle pitch, and the minimum gap can be set.
In the above differential structure, a washer is disposed on the outer side of the differential crank, a screw is threaded on the washer, the screw is screwed on the connecting pin, and the differential crank is located between the washer and the differential connecting rod.
The locating piece is a screw, the screw penetrates through the gasket and is in threaded connection with the connecting pin, the gasket is connected to the connecting pin, the connecting pin is fixed in a chute of the differential crank, when the screw is loosened, the connecting pin can slide in the chute, the position of the connecting pin in the chute is changed, the connection position of the differential connecting rod and the differential crank is changed, and the differential ratio is correspondingly changed.
The washer and the differential connecting rod are positioned at two sides of the differential crank and are opposite, and the structure ensures that the connection is not easy to fall off from the differential crank, thereby improving the installation stability.
In the above differential structure, the gasket includes a main body, one side of the main body has a boss, the boss is long and is adapted to the shape of the chute, the boss is slidably connected in the chute, a side surface of the boss is abutted against an inner wall of the chute, and one side of the main body or an outer side of the boss can be abutted against an outer side of the differential crank.
The shape of boss suits with the shape of spout, and the boss plays good guide effect, is difficult for producing when the connecting pin is moving at the spout and rocks, also makes the connecting pin can more accurate removal to the position of needs, more accurate regulation differential ratio.
When the working condition of large needle distance is adopted, the boss of the washer is positioned in the chute of the differential crank.
When the gasket rotates for a certain angle under the working condition of small needle distance, the boss of the gasket is pressed on the end face of the differential crank, the long strip-shaped boss is positioned at the outer side of the chute, the moving range of the gasket is larger, and compared with the working condition of large needle distance, the working condition of small needle distance can obtain larger differential ratio, so that the differential crank can adapt to more cloth and more processes.
In the above differential structure, a protruding edge is provided above the boss, and the protruding edge can abut against the upper end portion of the chute.
When the protruding edge is propped against the upper end part of the chute, the gasket can not move upwards any more, the connecting pin moves to the uppermost part of the chute, and the protruding edge is used for limiting upwards, so that the convenience of operation is improved.
In the above-mentioned differential structure, the cloth feeding assembly comprises a cloth feeding crank and a cloth feeding connecting rod, wherein the cloth feeding crank is arranged on the cloth feeding shaft, one end part of the cloth feeding connecting rod is hinged on the cloth feeding crank, and the other end part of the cloth feeding connecting rod is connected with the cloth feeding tooth frame.
In the structure, the main shaft drives the cloth feeding shaft to swing, and the cloth feeding shaft drives the cloth feeding tooth frame to move left and right through the cloth feeding crank and the cloth feeding connecting rod.
In the above differential structure, the first lifting tooth component comprises a first lifting tooth sliding block and a second lifting tooth sliding block, the main shaft is provided with an eccentric connecting rod, the first lifting tooth sliding block is installed on the eccentric connecting rod, the first lifting tooth sliding block is connected to one side of the cloth feeding tooth frame and one side of the differential tooth frame, the first lifting tooth shaft is provided with an eccentric crank, the second lifting tooth sliding block is installed on the eccentric crank, and the second lifting tooth sliding block is connected to the other side of the cloth feeding tooth frame and the other side of the differential tooth frame.
In the structure, a rotating main shaft drives a first lifting tooth sliding block to move up and down through an eccentric connecting rod, a swinging lifting tooth shaft drives a second lifting tooth sliding block to move up and down through an eccentric crank, the first lifting tooth sliding block is positioned on one side of a cloth feeding tooth frame and one side of a differential tooth frame, the second lifting tooth sliding block is positioned on the other side of the cloth feeding tooth frame and the other side of the differential tooth frame, and the two oppositely arranged lifting tooth sliding blocks drive the cloth feeding tooth frame and the differential tooth frame to move up and down when moving up and down.
In the above-mentioned differential structure, a connection block is mounted on the differential dental frame, one end of the differential connection rod is hinged to the connection block, and a hinge point of the end of the differential connection rod and the connection block is located on a center of the chute.
In the structure, the differential connecting rod is hinged with the differential dental frame through the connecting block, the hinging point of one end part of the differential connecting rod and the connecting block is positioned on the circle center of the sliding groove, and when the connecting pin slides in the sliding groove, the moving track of the connecting pin is consistent with the extending direction of the sliding groove.
In the above differential structure, a first connecting rod assembly is connected between the main shaft and the lifting shaft, and a second connecting rod assembly is connected between the main shaft and the cloth feeding shaft.
The main shaft is driven by the driving source to rotate, the main shaft drives the lifting shaft to swing through the first connecting rod assembly, and the main shaft drives the cloth feeding shaft to swing through the second connecting rod assembly.
The invention also provides a sewing machine which comprises any differential structure.
Compared with the prior art, the invention has the following advantages:
1. In the differential structure, when the connecting pin slides in the chute, the moving track of the connecting pin is consistent with the extending direction of the chute, the differential tooth rack and the differential teeth do not move back and forth when the upper and lower positions of the connecting pin on the chute are adjusted, and the distance between the differential teeth and the edge of the tooth slot on the needle plate is kept unchanged all the time when the differential size is adjusted under the maximum needle distance.
2. In the differential structure, the boss on the gasket plays a good guiding role, so that the connecting pin can move to a required position more accurately, and the differential ratio can be adjusted more accurately.
3. After the gasket of the differential structure rotates for a certain angle, the movement range of the gasket is larger, and compared with a working condition with a large needle distance, a working condition with a small needle distance can obtain a larger differential ratio, so that the differential structure can adapt to more cloth and more processes.
Drawings
FIG. 1 is a schematic diagram of the present differential structure;
FIG. 2 is a schematic illustration of a differential linkage coupled to a differential dental frame;
FIG. 3 is a disassembled view of the washer and differential crank;
FIG. 4 is a schematic structural view of a gasket;
FIG. 5 is a schematic illustration of the connection of the washer to the differential crank during large gauge conditions;
FIG. 6 is a schematic illustration of the connection of the washer to the differential crank during a small gauge condition;
FIG. 7 is a schematic diagram of a large gauge maximum differential switching to a small gauge maximum differential;
FIG. 8 is a schematic illustration of a feed dog trace and a differential dog trace;
FIG. 9 is a schematic view of a structure in which a tooth lifting slider is installed on a main shaft;
FIG. 10 is a schematic view of a second tooth lifting slider mounted on a tooth lifting shaft;
fig. 11 is a schematic view of the differential structure mounted on the chassis.
In the figure: the novel automatic feeding device comprises a main shaft 1, a cloth feeding shaft 2, a cloth lifting shaft 3, a cloth feeding rack 4, a differential rack 5, a cloth lifting assembly 6, a cloth feeding assembly 7, a differential connecting rod 8, a differential crank 9, a chute 10, a connecting pin 11, a washer 12, a screw 13, a main body 14, a boss 15, a convex edge 16, a cloth feeding crank 17, a cloth feeding connecting rod 18, a first lifting slider 19, a second lifting slider 20, a second eccentric connecting rod 21, a eccentric crank 22, a connecting block 23, a first connecting rod assembly 24, a second connecting rod assembly 25, a needle plate 26, a tooth slot 27, a cloth feeding tooth 28, a differential tooth 29, a cloth feeding tooth track 30, a differential tooth track 31 and a casing 32.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-3, the differential structure comprises a main shaft 1, a cloth feeding shaft 2, a cloth lifting shaft 3, a cloth feeding rack 4 and a differential rack 5, wherein the cloth feeding shaft 2 and the cloth lifting shaft 3 are respectively connected to the main shaft 1 in a driven way, a cloth lifting assembly 6 for driving the cloth feeding rack 4 and the differential rack 5 to move up and down is connected to the main shaft 1 and the cloth lifting shaft 3, a cloth feeding assembly 7 for driving the cloth feeding rack 4 to swing left and right is arranged on the cloth feeding shaft 2, a differential connecting rod 8 is hinged to the differential rack 5, a differential crank 9 is further arranged on the cloth feeding shaft 2, a circular arc-shaped chute 10 is arranged on the differential crank 9, a connecting pin 11 is arranged on one end part of the differential connecting rod 8, the connecting pin 11 can slide in the chute 10 and is positioned on the chute 10, and a hinging point on the other end part of the differential connecting rod 8 is positioned on the center of the chute 10.
As shown in fig. 1, 8 and 11, a needle plate 26 is mounted on a casing 32 of the sewing machine, a tooth slot 27 is formed on the needle plate 26, a feed dog 28 is arranged at the upper part of a feed dog frame 4, a differential dog 29 is arranged at the upper part of a differential dog frame 5, a spindle 1 of the differential structure drives a feed dog shaft 3 to swing when rotating, the spindle 1 and the feed dog shaft 3 drive the feed dog frame 4 and the differential dog frame 5 to move up and down through a feed dog assembly 6, the feed dog shaft 2 drives the feed dog frame 4 to move left and right through a feed dog assembly 7, the feed dog shaft 2 also drives the differential dog frame 5 to move left and right through a differential crank 9 and a differential connecting rod 8, and the feed dog frame 4 and the differential dog frame 5 move up and down and back and forth, so that the feed dog 28 and the differential dog 29 also move up and down and back and forth, and feeding is realized.
In the differential structure, the connecting pin 11 arranged on one end part of the differential connecting rod 8 is fixed on the chute 10 through the positioning piece, when the positioning piece is loosened, the connecting pin 11 can slide in the chute 10, the other end part of the differential connecting rod 8 is hinged with the differential tooth rack 5, the hinging point of the connecting pin 11 and the differential tooth rack is positioned on the center of the chute 10, and when the connecting pin 11 slides in the chute 10, the moving track of the connecting pin 11 is consistent with the extending direction of the chute 10.
When the differential tooth 29 moves to the leftmost end, the distance between the differential tooth 29 and the edge of the tooth groove 27 on the needle plate 26 is nearest, and when the vertical position of the connecting pin 11 on the chute 10 is adjusted, the differential tooth frame 5 and the differential tooth 29 do not move back and forth, so that the distance between the differential tooth 29 and the edge of the tooth groove 27 on the needle plate 26 is always kept constant when the differential is adjusted under the maximum needle pitch, and the minimum gap can be set.
As shown in fig. 1 and 3, in the present embodiment, a washer 12 is provided on the outer side of the differential crank 9, a screw 13 is threaded on the washer 12, the screw 13 is screwed on the connecting pin 11, and the differential crank 9 is located between the washer 12 and the differential link 8.
The positioning piece is a screw 13, the screw 13 is penetrated on the washer 12 and is in threaded connection with the connecting pin 11, the washer 12 is connected with the connecting pin 11, the connecting pin 11 is also fixed in the chute 10 of the differential crank 9, when the screw 13 is loosened, the connecting pin 11 can slide in the chute 10, the position of the connecting pin 11 in the chute 10 is changed, the connection position of the differential connecting rod 8 and the differential crank 9 is changed, and the differential ratio is correspondingly changed.
The washer 12 and the differential connecting rod 8 are positioned on two sides of the differential crank 9 and are opposite to each other, and the structure ensures that the connection is not easy to fall off from the differential crank 9, thereby improving the installation stability.
As shown in fig. 4-7, in this embodiment, the washer 12 includes a main body 14, one side of the main body 14 has a boss 15, the boss 15 is long and is adapted to the shape of the chute 10, the boss 15 is slidably connected in the chute 10, the side surface of the boss 15 abuts against the inner wall of the chute 10, and one side of the main body 14 or the outer side of the boss 15 can abut against the outer side of the differential crank 9.
The shape of the boss 15 is matched with the shape of the chute 10, the boss 15 plays a good guiding role, and when the connecting pin 11 moves in the chute 10, the connecting pin 11 is not easy to shake, and can move to a required position more accurately, and the differential ratio is adjusted more accurately.
When in large gauge conditions, the maximum differential is shown in fig. 5, where boss 15 of washer 12 is located in runner 10 of differential crank 9.
When the washer 12 is rotated by a certain angle under the working condition of small needle distance as shown in fig. 6, the boss 15 of the washer 12 is pressed on the end face of the differential crank 9, the long-strip-shaped boss 15 is positioned outside the chute 10, the moving range of the washer 12 is larger, and compared with the working condition of large needle distance, the working condition of small needle distance can obtain larger differential ratio, so that the differential crank can adapt to more cloth and more processes.
As shown in fig. 4, in this embodiment, a protruding edge 16 is provided above the boss 15, and the protruding edge 16 can abut against the upper end portion of the chute 10.
When the flange 16 abuts against the upper end of the chute 10, the washer 12 cannot move upward any more, the connecting pin 11 moves to the uppermost side of the chute 10, and the flange 16 serves as an upper limit, improving the convenience of operation.
As shown in fig. 1, in this embodiment, the cloth feeding assembly 7 includes a cloth feeding crank 17 and a cloth feeding link 18, the cloth feeding crank 17 is mounted on the cloth feeding shaft 2, one end of the cloth feeding link 18 is hinged on the cloth feeding crank 17, and the other end of the cloth feeding link 18 is connected with the cloth feeding tooth frame 4.
In this structure, the spindle 1 drives the cloth feed shaft 2 to swing, and the cloth feed shaft 2 drives the cloth feed rack 4 to move left and right through the cloth feed crank 17 and the cloth feed link 18.
As shown in fig. 2, 9 and 10, in this embodiment, the lifting assembly 6 includes a first lifting slider 19 and a second lifting slider 20, the spindle 1 is provided with an eccentric link 21, the first lifting slider 19 is mounted on the eccentric link 21, the first lifting slider 19 is connected to one side of the feed dog frame 4 and one side of the differential dog frame 5, the lifting shaft 3 is provided with an eccentric crank 22, the second lifting slider 20 is mounted on the eccentric crank 22, and the second lifting slider 20 is connected to the other side of the feed dog frame 4 and the other side of the differential dog frame 5.
In the structure, a rotating main shaft 1 drives a first lifting tooth sliding block 19 to move up and down through an eccentric connecting rod 21, a swinging lifting tooth shaft 3 drives a second lifting tooth sliding block 20 to move up and down through an eccentric crank 22, the first lifting tooth sliding block 19 is positioned on one side of the feed dog frame 4 and one side of the differential dog frame 5, the second lifting tooth sliding block 20 is positioned on the other side of the feed dog frame 4 and the other side of the differential dog frame 5, and the two oppositely arranged lifting tooth sliding blocks drive the feed dog frame 4 and the differential dog frame 5 to move up and down when moving up and down.
As shown in fig. 1, in the present embodiment, a connection block 23 is mounted on the differential dental frame 5, one end of the differential link 8 is hinged to the connection block 23, and the hinge point of the end of the differential link 8 and the connection block 23 is located on the center of circle of the chute 10.
In this structure, the differential link 8 is hinged to the differential dental frame 5 through the connection block 23, and the hinge point between one end of the differential link 8 and the connection block 23 is located at the center of the chute 10, so that when the connection pin 11 slides in the chute 10, the movement track of the connection pin 11 coincides with the extending direction of the chute 10.
As shown in fig. 1, in this embodiment, a first link assembly 24 is connected between the spindle 1 and the lifting shaft 3, and a second link assembly 25 is connected between the spindle 1 and the cloth feeding shaft 2.
The spindle 1 is driven by the driving source to rotate, the spindle 1 drives the lifting shaft 3 to swing through the first connecting rod assembly 24, and the spindle 1 drives the cloth feeding shaft 2 to swing through the second connecting rod assembly 25.
The invention also provides a sewing machine which comprises any one of the differential structures.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a differential structure, differential structure includes main shaft (1), feed shaft (2), lifts feed shaft (3), feed holder (4) and differential feed holder (5), feed shaft (2) and lift feed shaft (3) respectively from the driven connect in on main shaft (1), be connected with on main shaft (1) and lift feed shaft (3) and be used for the drive feed holder (4) and differential feed holder (5) reciprocate lift feed assembly (6), be provided with on feed shaft (2) and be used for the drive feed holder (4) left and right sides wobbling feed assembly (7), it has differential connecting rod (8) to articulate on differential feed holder (5), a serial communication port, still install differential crank (9) on feed shaft (2), have spout (10) that are in differential crank (9), install connecting pin (11) on one tip of differential connecting rod (8), connecting pin (11) can slide in spout (10) and be located on the articulated spout (10) of another tip of arc.
2. A differential structure according to claim 1, characterized in that a washer (12) is arranged on the outer side of the differential crank (9), a screw (13) is arranged on the washer (12) in a penetrating way, the screw (13) is connected to the connecting pin (11) in a threaded way, and the differential crank (9) is arranged between the washer (12) and the differential connecting rod (8).
3. A differential structure according to claim 2, characterized in that the gasket (12) comprises a main body (14), a boss (15) is provided on one side of the main body (14), the boss (15) is long and is adapted to the shape of the chute (10), the boss (15) is slidably connected in the chute (10), the side of the boss (15) is abutted against the inner wall of the chute (10), and one side of the main body (14) or the outer side of the boss (15) can be abutted against the outer side of the differential crank (9).
4. A differential structure according to claim 3, characterized in that the boss (15) has a ledge (16) above it, said ledge (16) being able to rest against the upper end of the chute (10).
5. A differential structure according to claim 1, characterized in that the feed assembly (7) comprises a feed crank (17) and a feed link (18), the feed crank (17) being mounted on the feed shaft (2), one end of the feed link (18) being hinged to the feed crank (17), the other end of the feed link (18) being connected to the feed dog-house (4).
6. A differential structure according to claim 1, characterized in that the lifting-tooth assembly (6) comprises a lifting-tooth sliding block one (19) and a lifting-tooth sliding block two (20), the main shaft (1) is provided with an eccentric connecting rod (21), the lifting-tooth sliding block one (19) is arranged on the eccentric connecting rod (21), the lifting-tooth sliding block one (19) is connected to one side of the feeding-tooth rack (4) and one side of the differential-tooth rack (5), the lifting-tooth shaft (3) is provided with an eccentric crank (22), the lifting-tooth sliding block two (20) is arranged on the eccentric crank (22), and the lifting-tooth sliding block two (20) is connected to the other side of the feeding-tooth rack (4) and the other side of the differential-tooth rack (5).
7. A differential structure according to claim 1, characterized in that the differential dental bracket (5) is provided with a connecting block (23), one end of the differential connecting rod (8) is hinged on the connecting block (23), and the hinge point of the end of the differential connecting rod (8) and the connecting block (23) is positioned on the center of the chute (10).
8. A differential structure according to claim 1, characterized in that a first connecting rod assembly (24) is connected between the main shaft (1) and the lifting shaft (3), and a second connecting rod assembly (25) is connected between the main shaft (1) and the cloth feeding shaft (2).
9. A sewing machine, characterized by a differential structure as claimed in any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310155160.2A CN118516811A (en) | 2023-02-17 | 2023-02-17 | Differential structure and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310155160.2A CN118516811A (en) | 2023-02-17 | 2023-02-17 | Differential structure and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118516811A true CN118516811A (en) | 2024-08-20 |
Family
ID=92280078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310155160.2A Pending CN118516811A (en) | 2023-02-17 | 2023-02-17 | Differential structure and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118516811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121407316A (en) * | 2025-12-26 | 2026-01-27 | 上工缝制机械(浙江)有限公司 | A motion device for the feed dog of a high-platform column sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775236A (en) * | 2015-04-30 | 2015-07-15 | 杰克缝纫机股份有限公司 | Sewing machine feeding mechanism |
| CN109371577A (en) * | 2018-11-19 | 2019-02-22 | 杰克缝纫机股份有限公司 | Feed dog frame adjustment mechanism and overlock sewing machine using the same |
| CN210341284U (en) * | 2019-04-24 | 2020-04-17 | 浙江乐江机械有限公司 | Cloth feeding mechanism of sewing machine |
| CN217298209U (en) * | 2022-04-28 | 2022-08-26 | 杰克科技股份有限公司 | Differential adjusting device and sewing machine |
| CN219508151U (en) * | 2023-02-17 | 2023-08-11 | 杰克科技股份有限公司 | Differential structure and sewing machine |
-
2023
- 2023-02-17 CN CN202310155160.2A patent/CN118516811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775236A (en) * | 2015-04-30 | 2015-07-15 | 杰克缝纫机股份有限公司 | Sewing machine feeding mechanism |
| CN109371577A (en) * | 2018-11-19 | 2019-02-22 | 杰克缝纫机股份有限公司 | Feed dog frame adjustment mechanism and overlock sewing machine using the same |
| CN210341284U (en) * | 2019-04-24 | 2020-04-17 | 浙江乐江机械有限公司 | Cloth feeding mechanism of sewing machine |
| CN217298209U (en) * | 2022-04-28 | 2022-08-26 | 杰克科技股份有限公司 | Differential adjusting device and sewing machine |
| CN219508151U (en) * | 2023-02-17 | 2023-08-11 | 杰克科技股份有限公司 | Differential structure and sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121407316A (en) * | 2025-12-26 | 2026-01-27 | 上工缝制机械(浙江)有限公司 | A motion device for the feed dog of a high-platform column sewing machine |
| CN121407316B (en) * | 2025-12-26 | 2026-04-03 | 上工缝制机械(浙江)有限公司 | Motion device of feeding tooth of high stand column sewing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221142078U (en) | Voltage-stabilizing close type sewing machine back dragging device | |
| CN115369573B (en) | A sewing machine with needle length adjustment and zero position positioning of swing seat | |
| CN112626734B (en) | a sewing machine | |
| CN215561067U (en) | Sewing machine with needle pitch adjusting function and zero position positioning swing seat | |
| CN215887459U (en) | Sewing machine with needle pitch adjusting function and zero position positioning swing seat | |
| CN115369575B (en) | Sewing machine without swinging seat | |
| CN219793308U (en) | Sewing machine | |
| CN105133215A (en) | Thread cutting mechanism of sewing machine | |
| CN219508151U (en) | Differential structure and sewing machine | |
| CN205046329U (en) | Sewing machine's thread trimming mechanism | |
| CN204491176U (en) | A kind of presser foot lifting device of Sewing machines | |
| CN115369576B (en) | A sewing machine without swing seat | |
| CN1470699A (en) | Ball-end button hole sewing machine | |
| CN212477096U (en) | Needle bar adjusting device of embroidery machine for producing cross-stitch insoles | |
| CN105113150A (en) | Sewing machine | |
| CN112626732B (en) | Feed lifting mechanism with adjustable feed lifting height and sewing machine | |
| CN216107508U (en) | Electronic cloth feeding device of sewing machine | |
| CN204959275U (en) | Sewing machine | |
| CN214694594U (en) | Cloth feeding adjusting device of sewing machine | |
| CN211645592U (en) | Needle pitch adjusting mechanism and sewing machine | |
| CN209353069U (en) | A sewing machine and its needle distance adjustment and backstitch assembly | |
| CN115369574A (en) | Sewing machine with needle pitch adjusting function and zero position positioning swing seat | |
| CN116005368A (en) | Feeding tooth frame adjusting mechanism of sewing machine | |
| CN210916530U (en) | Needle distance adjusting mechanism of a sewing machine for thick material and sewing machine | |
| CN216615085U (en) | Knife stroke adjustment device for sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |