CN106757824B - Cloth feeding device of sewing machine - Google Patents
Cloth feeding device of sewing machine Download PDFInfo
- Publication number
- CN106757824B CN106757824B CN201611185234.3A CN201611185234A CN106757824B CN 106757824 B CN106757824 B CN 106757824B CN 201611185234 A CN201611185234 A CN 201611185234A CN 106757824 B CN106757824 B CN 106757824B
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- China
- Prior art keywords
- wheel
- synchronous belt
- rack
- cloth feeding
- belt wheel
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
- D05B27/18—Feed cups
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
- D05B69/04—Manual drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/08—Fluid drives, e.g. pneumatic
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a cloth feeding device of a sewing machine, which comprises a rack, wherein the rack is provided with a cloth feeding device, an automatic wheel lifting device, a cloth pressing force adjusting device and a manual wheel lifting device; the cloth feeding device comprises a stepping motor arranged on the frame, and a first synchronous belt wheel is fixedly arranged on a motor shaft of the stepping motor; a rotating shaft is axially and fixedly arranged at the lower end of the rack; a second synchronous belt wheel and a third synchronous belt wheel are fixedly arranged on the rotating shafts on the two sides of the rack respectively, and a rotating arm is further arranged on the rotating shaft between the rack and the third synchronous belt wheel; a cloth feeding wheel shaft is arranged on the rotating arm; and a fourth synchronous belt wheel and a cloth feeding wheel are respectively and fixedly installed on the cloth feeding wheel shafts on the two sides of the rotating arm, a first synchronous belt is installed between the first synchronous belt wheel and the second synchronous belt wheel, and a second synchronous belt is installed between the third synchronous belt wheel and the fourth synchronous belt wheel. The invention can freely adjust the speed and the pressure of the cloth feeding device and combine the automatic lifting wheel with the manual lifting wheel.
Description
Technical Field
The invention relates to a cloth feeding device of a sewing machine, in particular to a mechanism for automatically feeding cloth when the sewing machine performs sewing processing.
Background
The cloth feeding device of the sewing machine is mainly driven by the motion of a motor of the sewing machine at present, the middle part of the cloth feeding device is connected by a connecting rod, the speed of the cloth feeding wheel is mechanically regulated, and the regulation range is fixed; the cloth pressing force is mainly provided by an electromagnet or an air cylinder at present, the force can not be adjusted, and the electromagnet is electrified for a long time. Therefore, a method for solving the problems needs to be developed, and the cloth feeding speed and the pressure can be freely adjusted.
Disclosure of Invention
The invention aims to provide a cloth feeding device of a sewing machine, which can freely adjust the speed and the pressure of the cloth feeding device and is a device combining an automatic device and a manual lifting wheel.
The technical scheme adopted by the invention to solve the technical problems is as follows:
a cloth feeding device of a sewing machine comprises a rack, wherein a cloth feeding device, an automatic wheel lifting device, a cloth pressing force adjusting device and a manual wheel lifting device are arranged on the rack; the cloth feeding device comprises a stepping motor arranged on the rack, and a first synchronous belt wheel is fixedly arranged on a motor shaft of the stepping motor; a rotating shaft is axially and fixedly arranged at the lower end of the rack; a second synchronous belt wheel and a third synchronous belt wheel are fixedly arranged on the rotating shafts on the two sides of the rack respectively, and a rotating arm is further arranged on the rotating shaft between the rack and the third synchronous belt wheel; a cloth feeding wheel shaft is arranged on the rotating arm; a fourth synchronous belt wheel and a cloth feeding wheel are respectively and fixedly arranged on the cloth feeding wheel shafts on the two sides of the rotating arm, and the third synchronous belt wheel and the fourth synchronous belt wheel are positioned on the same side; a first synchronous belt is arranged between the first synchronous belt wheel and the second synchronous belt wheel, and a second synchronous belt is arranged between the third synchronous belt wheel and the fourth synchronous belt wheel.
The automatic wheel lifting device comprises an electromagnet cylinder arranged on the rack, the electromagnet cylinder is connected with a push rod, and the push rod is fixedly connected with a pressing block; the pressing block is fixedly connected with the upper end of the rotating arm.
The cloth pressing force adjusting device comprises a rotary screw rod installed on the rack through a nut, the bottom end of the rotary screw rod is fixedly connected with a screw rod sleeve, a ball head connecting rod is installed in the screw rod sleeve and connected with one end of a spring, and the other end of the spring is fixedly connected with the upper end of a rotating arm.
The manual wheel lifting device comprises a rotating shaft arranged on the rack, and eccentric wheels and handles are respectively arranged on the rotating shaft on two sides of the rack; the eccentric wheel is provided with a positioning wave bead; the eccentric wheel and the rotating arm are arranged on the same side of the frame.
The invention has the beneficial effects that: 1. the cloth feeding force can be directly adjusted through a spring, cloth feeding with different thicknesses can be realized, and meanwhile, template cloth feeding can also be adopted; 2. the stepping motor is adopted to drive the cloth feeding wheel, so that the cloth feeding speed is convenient and adjustable; 3. compact structure, simple and reliable.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a right side view of fig. 1.
Detailed Description
Example 1
A cloth feeding device of a sewing machine of the embodiment, as shown in fig. 1-3, comprises a frame 1, wherein the frame 1 is provided with a cloth feeding device, an automatic wheel lifting device, a cloth pressing force adjusting device and a manual wheel lifting device; the cloth feeding device comprises a stepping motor 24 arranged on the frame 1, and a first synchronous belt pulley 2 is fixedly arranged on a motor shaft of the stepping motor 24; a rotating shaft 5 is axially and fixedly arranged at the lower end of the rack 1; a second synchronous belt wheel 3 and a third synchronous belt wheel 7 are respectively and fixedly installed on the rotating shafts 5 on the two sides of the rack 1, and a rotating arm 6 is also installed on the rotating shaft 5 between the rack 1 and the third synchronous belt wheel 7; a cloth feeding wheel shaft 10 is arranged on the rotating arm 6; a fourth synchronous belt wheel 8 and a cloth feeding wheel 11 are respectively and fixedly arranged on cloth feeding wheel shafts 10 on two sides of the rotating arm 6, and the third synchronous belt wheel 7 and the fourth synchronous belt wheel 8 are positioned on the same side; a first synchronous belt 4 is installed between the first synchronous belt wheel 2 and the second synchronous belt wheel 3, and a second synchronous belt 9 is installed between the third synchronous belt wheel 7 and the fourth synchronous belt wheel 8. When the stepping motor 24 rotates, a motor shaft on the stepping motor drives the first synchronous belt pulley 2, the first synchronous belt pulley 2 drives the second synchronous belt pulley 3 to rotate through the first synchronous belt 4, the third synchronous belt pulley 7 installed on the rotating shaft 5 is driven to rotate, the fourth synchronous belt pulley 8 is driven to rotate through the second synchronous belt 9, and therefore the cloth feeding wheel 11 is driven to rotate, and cloth feeding is achieved.
The automatic wheel lifting device comprises an electromagnet cylinder 12 arranged on the rack 1, wherein the electromagnet cylinder 12 is connected with a push rod 13, and the push rod 13 is fixedly connected with a pressing block 14; the pressing block 14 is fixedly connected with the upper end of the rotating arm 6. The push rod 13 is pushed by the action of the electromagnet cylinder 12, the pressing block 14 is pressed and loosened by the push rod 13, and the rotating arm 6 rotates around the rotating shaft 5 under the action of the pressing block 14, so that the cloth feeding wheel 11 is lifted.
The cloth pressing force adjusting device comprises a rotary screw rod 15 installed on the frame 1 through a nut 16, the bottom end of the rotary screw rod 15 is fixedly connected with a screw sleeve 17, a ball head connecting rod 18 is installed in the screw sleeve 17, the ball head connecting rod 18 is connected with one end of a spring 19, and the other end of the spring 19 is fixedly connected with the upper end of a rotating arm 6. The length of the spring 19 can be changed by rotating the rotary screw 15, the length of the spring 19 is changed by rotating the rotary screw 15, the force of the spring 19 which is pressed against the rotating arm 6 is controlled by changing the length of the spring 19, and the force acts on the cloth feeding wheel 11 through the rotating arm 6, so that the cloth pressing force of the cloth feeding wheel 11 is adjusted.
The manual wheel lifting device comprises a rotating shaft 21 arranged on the frame 1, and an eccentric wheel 22 and a handle 20 are respectively arranged on the rotating shaft 21 on two sides of the frame 1; the eccentric wheel 22 is provided with a positioning wave bead 23; the eccentric wheel 22 and the rotating arm 6 are arranged on the same side of the frame 1. The handle 20 is rotated, the eccentric wheel 22 rotates around the rotating shaft 21, the positioning beads 23 are used for ensuring the rotating position of the eccentric wheel 22, and the eccentric wheel 22 rotates by a corresponding angle to be in contact with the rotating arm 6 to push the cloth feeding wheel 11 to be lifted.
According to the cloth feeding device of the sewing machine, the cloth feeding force can be directly adjusted through the spring, cloth feeding with different thicknesses can be achieved, and meanwhile, template cloth feeding can also be adopted; secondly, a stepping motor is adopted to drive a cloth feeding wheel, so that the cloth feeding speed is convenient and adjustable; the wheel lifting device combining automation and manual operation is adopted again, so that the operation is convenient; and moreover, the structure is compact, simple and reliable.
Claims (1)
1. A cloth feeding device of a sewing machine is characterized in that: the cloth pressing machine comprises a rack (1), wherein a cloth feeding device, an automatic wheel lifting device, a cloth pressing force adjusting device and a manual wheel lifting device are arranged on the rack (1); the cloth feeding device comprises a stepping motor (24) arranged on the rack (1), and a first synchronous belt pulley (2) is fixedly arranged on a motor shaft of the stepping motor (24); a rotating shaft (5) is axially and fixedly arranged at the lower end of the rack (1); a second synchronous belt wheel (3) and a third synchronous belt wheel (7) are respectively and fixedly installed on the rotating shafts (5) on the two sides of the rack (1), and a rotating arm (6) is further installed on the rotating shaft (5) between the rack (1) and the third synchronous belt wheel (7); a cloth feeding wheel shaft (10) is arranged on the rotating arm (6); a fourth synchronous belt wheel (8) and a cloth feeding wheel (11) are respectively and fixedly arranged on cloth feeding wheel shafts (10) on two sides of the rotating arm (6), and the third synchronous belt wheel (7) and the fourth synchronous belt wheel (8) are positioned on the same side; a first synchronous belt (4) is arranged between the first synchronous pulley (2) and the second synchronous pulley (3), and a second synchronous belt (9) is arranged between the third synchronous pulley (7) and the fourth synchronous pulley (8); the electromagnet air cylinder (12) is installed on the rack (1), the electromagnet air cylinder (12) is connected with the push rod (13), and the push rod (13) is fixedly connected with the pressing block (14); the pressing block (14) is fixedly connected with the upper end of the rotating arm (6); the cloth pressing force adjusting device comprises a rotary screw rod (15) which is installed on the rack (1) through a nut (16), the bottom end of the rotary screw rod (15) is fixedly connected with a screw sleeve (17), a ball head connecting rod (18) is installed in the screw sleeve (17), the ball head connecting rod (18) is connected with one end of a spring (19), and the other end of the spring (19) is fixedly connected with the upper end of a rotating arm (6); the manual wheel lifting device comprises a rotating shaft (21) arranged on a rack (1), and eccentric wheels (22) and a handle (20) are respectively arranged on the rotating shaft (21) on two sides of the rack (1); a positioning wave bead (23) is arranged on the eccentric wheel (22); the eccentric wheel (22) and the rotating arm (6) are arranged on the same side of the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185234.3A CN106757824B (en) | 2016-12-20 | 2016-12-20 | Cloth feeding device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185234.3A CN106757824B (en) | 2016-12-20 | 2016-12-20 | Cloth feeding device of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106757824A CN106757824A (en) | 2017-05-31 |
| CN106757824B true CN106757824B (en) | 2023-01-24 |
Family
ID=58894175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611185234.3A Active CN106757824B (en) | 2016-12-20 | 2016-12-20 | Cloth feeding device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106757824B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7365105B2 (en) * | 2017-09-25 | 2023-10-19 | Juki株式会社 | sewing machine |
| JP2019058232A (en) * | 2017-09-25 | 2019-04-18 | Juki株式会社 | sewing machine |
| CN107974769A (en) * | 2017-11-25 | 2018-05-01 | 广东奥丽侬内衣集团有限公司 | A kind of full-automatic drawing ultra wide band glue zhang root device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3516713C1 (en) * | 1985-05-09 | 1986-04-24 | Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern | Sewing machine with a needle bar mounted in a swing arm |
| CN2903126Y (en) * | 2006-05-11 | 2007-05-23 | 刘坤钟 | Cloth feeding wheel of cloth feeding apparatus on sewing machine |
| CN201236268Y (en) * | 2008-07-25 | 2009-05-13 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Motor direct drive type under differential sewing machine |
| CN201729962U (en) * | 2010-04-13 | 2011-02-02 | 中山百川汇盈精密实业有限公司 | Cloth feeding towing mechanism applied to sewing equipment |
| CN201686824U (en) * | 2010-04-22 | 2010-12-29 | 九牧王股份有限公司 | Cloth dragging device of sewing machine |
| CN102433692B (en) * | 2011-08-10 | 2014-07-02 | 新杰克缝纫机股份有限公司 | Automatic feeding device of sewing machine |
| CN203128818U (en) * | 2013-01-18 | 2013-08-14 | 刘力豪 | Differential cloth feeding idler wheel device of sewing machine |
| CN204058889U (en) * | 2014-09-05 | 2014-12-31 | 西安标准工业股份有限公司 | A kind of Sewing machines with two-wheel cloth feeding mechanism |
| CN204251841U (en) * | 2014-10-30 | 2015-04-08 | 林日长 | The two cloth-dragging wheel device of a kind of Sewing machines |
| CN205024415U (en) * | 2015-09-28 | 2016-02-10 | 台州翔科缝纫机有限公司 | Postpone tow boat mechanism in mechanical type |
| CN205636058U (en) * | 2016-05-31 | 2016-10-12 | 浙江莎美实业股份有限公司 | A mop wheel for sewing machine |
| CN206368257U (en) * | 2016-12-20 | 2017-08-01 | 浙江工业大学之江学院 | A kind of cloth feeding device for sewing machine |
-
2016
- 2016-12-20 CN CN201611185234.3A patent/CN106757824B/en active Active
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| CN106757824A (en) | 2017-05-31 |
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