CN106222892B - Pressing wheel assembly of sewing machine and sewing machine - Google Patents
Pressing wheel assembly of sewing machine and sewing machine Download PDFInfo
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- CN106222892B CN106222892B CN201610776827.0A CN201610776827A CN106222892B CN 106222892 B CN106222892 B CN 106222892B CN 201610776827 A CN201610776827 A CN 201610776827A CN 106222892 B CN106222892 B CN 106222892B
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- sewing machine
- pinch roller
- assembly
- pressing wheel
- swinging
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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
- D05B27/14—Work-feeding means with rotary circular feed members rotating discontinuously
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a pinch roller assembly of a sewing machine, the sewing machine comprises an operating platform, a shell arranged on the operating plane and a sewing machine needle arranged on the shell, the pinch roller component comprises an upper pinch roller which is rotationally arranged behind the sewing machine needle, a lower pinch roller component which is arranged on the operating plane, a transmission component which drives the upper pinch roller to follow the sewing machine needle and a lifting component which controls the upper pinch roller to ascend or descend, the upper pressing wheel is pressed against the lower pressing wheel component after descending, the upper pressing wheel synchronously rolls when the sewing machine needle works, because the upper pressing wheel and the lower pressing wheel are arranged behind the sewing machine needle of the sewing machine, the upper pressing wheel rotates along with the operation of the sewing machine needle, and the lower pressing wheel is used as the driven wheel of the upper pressing wheel, the thicker cloth can be pushed forward, and the technical purpose of automatic cloth feeding is achieved.
Description
Technical Field
The invention relates to the field of sewing machines, in particular to a pressing wheel assembly of a sewing machine and the sewing machine.
Background
At present, the existing sewing machine needs an operator to manually control the direction of a sewing thread in the sewing process, and the operation is difficult when thick cloth is encountered, so that the workload of a user is large.
Particularly in the aspect of cloth propulsion, the propulsion of the cloth needs to be completed within a short time when a needle of the sewing machine leaves the cloth cover, and the conventional sewing machine for thick and large cloth is difficult to automatically complete the propulsion of the cloth.
Disclosure of Invention
The invention aims to provide a pressing wheel assembly of a sewing machine capable of automatically propelling cloth and the sewing machine.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a pinch roller subassembly of sewing machine, sewing machine includes operation platform, sets up casing and setting on the operation plane are in sewing machine needle on the casing, pinch roller subassembly is including rotating the setting last pinch roller behind the sewing machine needle, set up last pinch roller subassembly and the drive on the operation plane go up the pinch roller along with the drive assembly and the control of sewing machine needle go up the lift subassembly that the pinch roller ascended or descends, go up the pinch roller descend the back with the pinch roller subassembly offsets down, it is in to go up the pinch roller the synchronous roll of sewing machine needle during operation.
Preferably, a groove is arranged on the operation plane, and the lower pinch roller assembly is arranged in the groove.
Further preferably, the lower pressure wheel assembly comprises a lower roller shaft fixedly arranged with the operating plane, at least two one-way bearings sleeved on the lower roller shaft, and a lower pressure wheel sleeved outside the one-way bearings.
Preferably, the upper pressing wheel is rotatably arranged on the roller frame, the lifting assembly comprises a support fixedly connected with the shell, a pressing rod vertically and slidably arranged on the support, and a control assembly for controlling the upper position and the lower position of the pressing rod, and the pressing rod is fixedly connected with the roller frame.
Further preferably, a guide block is fixedly arranged on the roller frame, and a guide clamp matched with the guide block is fixedly arranged on the support.
Further preferably, the control assembly comprises a spring seat fixedly arranged at the top of the compression rod, a pressure spring vertically arranged on the spring seat, an adjusting sleeve arranged at the top of the pressure spring, and a lifting block rotatably arranged on the support, the upper part of the adjusting sleeve is connected with the top of the support, the lifting block comprises a rotating shaft part and a cam part, a flange part is horizontally and outwards convexly arranged at the edge part of the spring seat, and the cam part abuts against the lower surface of the flange part.
Preferably, the sewing machine further comprises a main shaft for driving the sewing machine needle, and the main shaft also synchronously drives the upper pressing wheel to roll.
Further preferably, the transmission assembly include with transmission shaft and last gyro wheel axle, the fixed setting that the main shaft is parallel to each other are in epaxial eccentric wheel, rotation cover establish eccentric wheel connecting rod outside the eccentric wheel, fixed setting are in on the transmission shaft and with first swinging arms and the second swinging arms of transmission shaft vertical setting, rotation setting are in go up epaxial third swinging arms of gyro wheel and both ends respectively with the swinging end of second swinging arms rotates the connecting rod of being connected with the swinging end of third swinging arms, the swinging end of first swinging arms with the outer end of eccentric wheel connecting rod rotates mutually and is connected, go up the gyro wheel axle with the third swinging arms passes through one way bearing and rotates mutually and is connected.
Further preferably, the swing end of the first swing lever is rotatably connected to the eccentric wheel connecting rod through a long hole, and the swing end of the second swing lever is rotatably connected to the connecting rod through a long hole.
A sewing machine with the sewing machine pinch roller assembly.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
because the upper pressing wheel and the lower pressing wheel are arranged behind the sewing machine needle of the sewing machine, the upper pressing wheel rotates along with the operation of the sewing machine needle, and the lower pressing wheel is used as the driven wheel of the upper pressing wheel, the thicker cloth can be pushed forward, and the technical purpose of automatic cloth feeding is achieved.
Drawings
FIG. 1 is an exploded view of a puck assembly according to a first embodiment;
FIG. 2 is an exploded view of the lift assembly of the first embodiment;
fig. 3 is an exploded view of the transmission assembly of the first embodiment.
In the above drawings: 1. an upper pinch roller; 2. a lower pinch roller; 3. a lower roller shaft; 4. a groove; 5. a roller frame; 6. a support; 7. a hold down bar; 8. a guide block; 9. a guide card; 10. a spring seat; 11. a pressure spring; 12. a lifting block; 13. rotating the handle; 14. a drive shaft; 15. an upper roller shaft; 16. an eccentric wheel; 17. an eccentric wheel connecting rod; 18. a first swing lever; 19. a second swing lever; 20. a third swing lever; 21. a connecting rod; 22. a one-way needle bearing; 23. an adjusting sleeve; 24. a needle bearing.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
the first embodiment is as follows: referring to fig. 1, an operating platform of a sewing machine, a housing arranged on an operating plane, a sewing machine needle arranged on the housing, and a pressing wheel assembly are shown in the drawing, wherein the pressing wheel assembly comprises an upper pressing wheel 1 rotatably arranged behind the sewing machine needle, a lower pressing wheel assembly arranged on the operating plane, and a lifting assembly for driving the upper pressing wheel 1 to ascend or descend along with a transmission assembly of the sewing machine needle and controlling the upper pressing wheel 1, the upper pressing wheel 1 abuts against the lower pressing wheel assembly after descending, and the upper pressing wheel 1 synchronously rolls when the sewing machine needle works. The operating plane is provided with a groove 4, and the lower pinch roller component is rotatably arranged in the groove 4. The lower pressing wheel component comprises a lower roller shaft 3 fixedly arranged with the operation plane, three one-way bearings sleeved on the lower roller shaft 3 and a lower pressing wheel 2 sleeved outside the one-way bearings. The upper pinch roller 1 is rotatably arranged on the roller carrier 5, the lifting assembly comprises a support 6 fixedly connected with the shell, a pressing rod 7 vertically and slidably arranged on the support 6, and a control assembly for controlling the upper position and the lower position of the pressing rod 7, and the pressing rod 7 is fixedly connected with the roller carrier 5. The three one-way bearings on the lower roller shaft 3 are separated by bearing spacers. The lower pinch roller is used as a driven wheel of the upper pinch roller, so that thicker cloth can be pushed forwards.
The control assembly is including fixed spring holder 10 that sets up at the compression bar 7 top, the pressure spring 11 of vertical setting on spring holder 10 sets up, the adjusting collar 23 of setting at pressure spring 11 top, and rotate the promotion piece 12 of setting on support 6, the upper portion of adjusting collar 23 is connected with support 6's top, promotion piece 12 includes pivot portion and cam portion, the outside protrusion of edge part level of spring holder 10 is provided with flange portion, the cam portion supports the lower surface of establishing at flange portion, pivot portion and twist grip 13 fixed connection.
A guide block 8 is fixedly arranged on the roller frame 5, and a guide clamp 9 matched with the guide block 8 is fixedly arranged on the bracket 6 so as to guide the upper pressing wheel 1 to move up and down.
The sewing machine also comprises a main shaft for driving the sewing machine needle, and the main shaft also synchronously drives the upper pressure wheel 1 to roll. The transmission component comprises a transmission shaft 14 and an upper roller shaft 15 which are arranged in parallel with the main shaft, an eccentric wheel 16 fixedly arranged on the main shaft, an eccentric wheel connecting rod 17 rotatably sleeved outside the eccentric wheel 16, a first swinging rod 18 and a second swinging rod 19 which are fixedly arranged on the transmission shaft 14 and are perpendicular to the transmission shaft 14, a third swinging rod 20 rotatably arranged on the upper roller shaft 15, and a connecting rod 21 of which two ends are respectively rotatably connected with the swinging end of the second swinging rod 19 and the swinging end of the third swinging rod 20, the swing end of the first swing rod 18 is rotatably connected with the outer end of the eccentric wheel connecting rod 17, the upper roller shaft 1 is rotatably connected with the third swing rod 20 through a one-way bearing, the one-way bearing between the upper roller shaft 1 and the third swing rod 20 is a one-way needle bearing 22 in the embodiment, and a needle bearing 24 is arranged between the eccentric wheel 16 and the eccentric wheel connecting rod 17. Through the cooperation of second swinging rod 19, connecting rod 21 and third swinging rod 20, the transmission of drive assembly is not influenced when adjusting different heights of upper pinch roller 1. And, the unidirectional bearing between the upper roller shaft 1 and the third swing lever 20 is matched with the eccentric wheel arranged on the main shaft, so that the upper pressure wheel 1 can drag the cloth only in the time period when the sewing machine needle leaves the cloth.
The pivoting end of the first pivoting lever 18 is connected in rotation to the eccentric connecting rod 17 via a slotted hole, and the pivoting end of the second pivoting lever 19 is connected in rotation to the connecting rod 21 via a slotted hole.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a pinch roller assembly of sewing machine, sewing machine includes operation platform, sets up casing and setting on the operation plane are in sewing machine needle on the casing, pinch roller assembly is including rotating the setting last pinch roller behind the sewing machine needle, set up and be in lower pinch roller subassembly and drive on the operation plane go up the pinch roller along with sewing machine needle's drive assembly and control go up the lift subassembly that the pinch roller ascended or descends, go up the pinch roller descend the back with lower pinch roller subassembly offsets, it is in to go up the pinch roller the synchronous roll of sewing machine needle during operation, it rotates and sets up on the gyro wheel frame to go up the pinch roller, its characterized in that: the lifting assembly comprises a support fixedly connected with the shell, a pressing rod and a control assembly, wherein the pressing rod is arranged on the support in a vertical sliding mode, the control assembly is used for controlling the upper position and the lower position of the pressing rod, the pressing rod is fixedly connected with the roller frame, the control assembly comprises a spring seat fixedly arranged at the top of the pressing rod, a pressure spring vertically arranged on the spring seat, and a lifting block vertically arranged on the spring seat, wherein the adjusting sleeve and the lifting block are arranged on the top of the pressure spring, the upper portion of the adjusting sleeve is connected with the top of the support, the lifting block comprises a rotating shaft portion and a cam portion, a flange portion is horizontally and outwards convexly arranged at the edge portion of the spring seat, and the cam portion is abutted against the lower surface of the flange portion.
2. The sewing machine pinch roller assembly of claim 1, wherein: a groove is formed in the operation plane, and the lower pressing wheel assembly is arranged in the groove.
3. The sewing machine pinch roller assembly of claim 2, wherein: the lower pressing wheel assembly comprises a lower roller shaft fixedly arranged with the operating plane, at least two one-way bearings sleeved on the lower roller shaft, and a lower pressing wheel sleeved outside the one-way bearings.
4. The sewing machine pinch roller assembly of claim 1, wherein: the roller frame is fixedly provided with a guide block, and the support is fixedly provided with a guide clamp matched with the guide block.
5. The sewing machine pinch roller assembly of claim 1, wherein: the sewing machine further comprises a main shaft for driving the sewing machine needle, and the main shaft also synchronously drives the upper pressing wheel to roll.
6. The sewing machine pinch roller assembly of claim 5, wherein: the transmission assembly includes with the transmission shaft and last roller shaft, the fixed setting of the mutual parallel arrangement of main shaft are in epaxial eccentric wheel, rotation cover are established eccentric wheel connecting rod, fixed setting outside the eccentric wheel are in on the transmission shaft and with first swinging arms and the second swinging arms, the rotation setting that the transmission shaft set up perpendicularly go up epaxial third swinging arms of roller and both ends respectively with the swing end of second swinging arms rotates the connecting rod of being connected with the swing end of third swinging arms, the swing end of first swinging arms with the outer end of eccentric wheel connecting rod rotates mutually and is connected, go up the roller shaft with the third swinging arms rotates mutually through one-way bearing and is connected.
7. The sewing machine pinch roller assembly of claim 6, wherein: the swinging end of the first swinging rod is rotatably connected with the eccentric wheel connecting rod through a long hole, and the swinging end of the second swinging rod is rotatably connected with the connecting rod through a long hole.
8. A sewing machine having a pinch roller assembly of the sewing machine of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776827.0A CN106222892B (en) | 2016-08-31 | 2016-08-31 | Pressing wheel assembly of sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776827.0A CN106222892B (en) | 2016-08-31 | 2016-08-31 | Pressing wheel assembly of sewing machine and sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106222892A CN106222892A (en) | 2016-12-14 |
| CN106222892B true CN106222892B (en) | 2022-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610776827.0A Active CN106222892B (en) | 2016-08-31 | 2016-08-31 | Pressing wheel assembly of sewing machine and sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN106222892B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354595B (en) * | 2017-08-18 | 2022-11-15 | 宁波三合鑫自动化有限公司 | Cloth conveying mechanism of sewing machine |
| CN110117875B (en) * | 2019-06-11 | 2024-02-27 | 标准缝纫机菀坪机械有限公司 | Feeding structure of panel sewing machine |
| CN113005646A (en) * | 2021-03-05 | 2021-06-22 | 苏州琼派瑞特电子科技有限公司 | Feeding mop mechanism for overedger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4851742A (en) * | 1971-10-29 | 1973-07-20 | Opti Holding Ag | |
| JP2006191969A (en) * | 2005-01-11 | 2006-07-27 | Juki Corp | Puller device of sewing machine |
| CN102605564A (en) * | 2012-03-31 | 2012-07-25 | 浙江百惠缝纫机有限公司 | Pulling device of multi-needle quilting machine and presser foot lifting device |
| 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 |
| CN204211942U (en) * | 2014-10-30 | 2015-03-18 | 林日长 | A kind of lifting device of sewing machine cloth-dragging wheel |
| CN206157342U (en) * | 2016-08-31 | 2017-05-10 | 苏州市志诚机械有限公司 | Sewing machine's pinch roller subassembly and sewing machine |
-
2016
- 2016-08-31 CN CN201610776827.0A patent/CN106222892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4851742A (en) * | 1971-10-29 | 1973-07-20 | Opti Holding Ag | |
| JP2006191969A (en) * | 2005-01-11 | 2006-07-27 | Juki Corp | Puller device of sewing machine |
| CN102605564A (en) * | 2012-03-31 | 2012-07-25 | 浙江百惠缝纫机有限公司 | Pulling device of multi-needle quilting machine and presser foot lifting device |
| 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 |
| CN204211942U (en) * | 2014-10-30 | 2015-03-18 | 林日长 | A kind of lifting device of sewing machine cloth-dragging wheel |
| CN206157342U (en) * | 2016-08-31 | 2017-05-10 | 苏州市志诚机械有限公司 | Sewing machine's pinch roller subassembly and sewing machine |
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| CN106222892A (en) | 2016-12-14 |
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