CN107237052B - Speed regulating device of cloth feeding device on sewing machine and sewing machine - Google Patents
Speed regulating device of cloth feeding device on sewing machine and sewing machine Download PDFInfo
- Publication number
- CN107237052B CN107237052B CN201710493182.4A CN201710493182A CN107237052B CN 107237052 B CN107237052 B CN 107237052B CN 201710493182 A CN201710493182 A CN 201710493182A CN 107237052 B CN107237052 B CN 107237052B
- Authority
- CN
- China
- Prior art keywords
- regulating wheel
- speed regulating
- transmission shaft
- speed
- sewing machine
- 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.)
- Active
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/14—Devices for changing speed or for reversing direction of rotation
- D05B69/16—Devices for changing speed or for reversing direction of rotation mechanical
Abstract
The invention belongs to the technical field of sewing equipment, in particular to a speed regulating device of a cloth feeding device on a sewing machine and the sewing machine; a first transmission shaft for transmitting power to the mounting seat from a driven wheel of the power device and a second transmission shaft arranged at intervals with the first transmission shaft are arranged on the mounting seat, and a fixed main speed regulating wheel and a movable main speed regulating wheel are also arranged on the first transmission shaft; the second transmission shaft is provided with a fixed driven speed regulating wheel and a movable driven speed regulating wheel, and the second transmission shaft is also provided with a pre-tightening device which enables the driven speed regulating wheel to always have pre-tightening force towards the fixed driven speed regulating wheel; a clamping groove is formed between the fixed main speed regulating wheel and the movable main speed regulating wheel; a clamping groove is formed between the fixed driven speed regulating wheel and the movable driven speed regulating wheel; the belt is connected with the two clamping grooves; a speed sensing device is arranged on the belt; the invention is a mechanical stepless speed regulation, realizes speed regulation by detecting the speed of belt transmission and further regulating the distance between a fixed main speed regulation wheel and a movable main speed regulation wheel, and has strong reliability and low cost.
Description
The technical field is as follows:
the invention belongs to the technical field of sewing equipment, and particularly relates to a speed regulating device of a cloth feeding device on a sewing machine and the sewing machine.
Background art:
at present, when a sewing machine sews different fabrics, the fabric on the lower layer is contacted with a feed dog, and the fabric on the upper layer is contacted with a presser foot. Different accelerations are provided for the upper layer cloth and the lower layer cloth, so that the upper layer cloth and the lower layer cloth are staggered to different degrees, and the quality of the clothes is reduced. Therefore, a speed regulating device capable of regulating the feeding speed of the upper layer of cloth needs to be designed to avoid the dislocation of the upper layer of cloth and the lower layer of cloth.
The invention content is as follows:
the invention aims to provide a speed regulating device of a cloth feeding device on a sewing machine, which can regulate speed through stepless speed regulation and has strong reliability, and the sewing machine.
The invention is realized by the following steps:
a speed regulating device of a cloth feeding device on a sewing machine comprises a mounting seat connected to one side wall of a machine shell, wherein a first transmission shaft for transmitting power to the mounting seat from a driven wheel of a power device and a second transmission shaft arranged at intervals with the first transmission shaft are arranged on the mounting seat; the second transmission shaft is provided with a fixed driven speed regulating wheel and a movable driven speed regulating wheel, and the second transmission shaft is also provided with a pre-tightening device which enables the driven speed regulating wheel to always have pre-tightening force towards the fixed driven speed regulating wheel; the opposite side surfaces of the fixed main speed regulating wheel and the movable main speed regulating wheel are inclined surfaces, and a clamping groove is formed between the two inclined surfaces; the opposite surfaces of the fixed driven speed regulating wheel and the movable driven speed regulating wheel are inclined surfaces, and a clamping groove is formed between the two inclined surfaces; the belt is connected with the two clamping grooves; the belt is provided with a speed sensing device.
In the above mentioned speed adjusting device of the cloth feeding device of the sewing machine, the distance between the movable main speed adjusting wheel and the fixed main speed adjusting wheel is adjustable as follows: an adjusting screw is arranged on the end face of the other end of the first transmission shaft, the movable main speed regulating wheel is sleeved outside a screw rod of the first transmission shaft and the adjusting screw, and the position of the adjusting screw on the first transmission shaft is adjusted to adjust the distance between the movable main speed regulating wheel and the fixed main speed regulating wheel.
In the speed adjusting device of the cloth feeding device on the sewing machine, the adjusting screw is manually adjusted or is connected with the motor and automatically adjusted by the motor.
In the speed regulating device of the cloth feeding device on the sewing machine, a friction plate is arranged between the movable main speed regulating wheel and the adjusting screw.
In the above speed adjusting device for the cloth feeding device on the sewing machine, the first transmission shaft is a stepped shaft and comprises a large-diameter part and a small-diameter part, a first bearing hole is formed in the mounting seat, a necking part is arranged at one end of the first bearing hole, the small-diameter part is arranged in the first bearing hole through more than one bearing, a clamp spring for limiting the axial movement of the first transmission shaft is further arranged on the first transmission shaft, and the bearing is located between the clamp spring and the necking part.
In the speed adjusting device of the cloth feeding device on the sewing machine, the end part of the small diameter part of the first transmission shaft is sleeved with the bearing cover for limiting the bearing, and one end of the bearing cover is inserted in the first bearing hole.
In the speed adjusting device of the cloth feeding device on the sewing machine, the second transmission shaft is a step shaft and comprises a large-diameter part and a small-diameter part, a second bearing hole is formed in the mounting seat, a necking part is arranged at one end of the second bearing hole, the small-diameter part is arranged in the first bearing hole through more than one bearing, a clamp spring for limiting the axial movement of the second transmission shaft is further arranged on the second transmission shaft, and the bearing is located between the clamp spring and the necking part.
In the speed adjusting device of the cloth feeding device on the sewing machine, the end part of the small-diameter part of the second transmission shaft is sleeved with the bearing cover for limiting the bearing, and one end of the bearing cover is inserted in the second bearing hole.
In the speed regulating device of the cloth feeding device on the sewing machine, the pre-tightening device comprises the baffle and the screw arranged on the end face of the other end of the second transmission shaft, the baffle is sleeved outside the screw rod of the screw, one end of the spring is tightly propped against the end face of the driven speed regulating wheel, and the other end of the spring is tightly propped against the baffle.
The invention also aims to provide a sewing machine, which comprises the speed regulating device of the cloth feeding device on the sewing machine.
Compared with the prior art, the invention has the outstanding advantages that:
1. the invention is a mechanical stepless speed regulation, which realizes speed regulation by detecting the speed of belt transmission and further regulating the distance between a fixed main speed regulation wheel and a movable main speed regulation wheel, and has strong reliability and low cost;
2. the invention is safe and reliable, and can realize speed regulation when the machine runs.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic view of the present invention mounted on a chassis.
In the figure: 1. a housing; 2. a mounting seat; 3. a first drive shaft; 4. a second drive shaft; 5. a driven wheel; 6. a main speed regulating wheel is fixed; 7. a dynamic main speed regulating wheel; 8. a fixed-slave speed regulating wheel; 9. a driven speed regulating wheel; 10. a baffle plate; 11. a spring; 12. a first clamping groove; 13. a second clamping groove; 14. a belt; 15. a speed sensing device; 16. a screw; 17. an adjusting screw; 18. a friction plate; 19. shrinking the neck part; 20. a clamp spring; 21. a first bearing; 22. a second bearing; 23. a retainer ring; 24. a bearing cap; 25. a feed dog; 26. a synchronous belt; 27. a mop shaft; 28. a driving wheel.
The specific implementation mode is as follows:
the invention will now be further described by way of specific examples, with reference to FIGS. 1-2:
a speed regulating device of a cloth feeding device on a sewing machine comprises a mounting seat 2 connected to one side wall of a machine shell 1, a first transmission shaft 3 and a second transmission shaft 4 are arranged on the mounting seat 2 at intervals and in parallel, a driven wheel 5 of a power device capable of driving the first transmission shaft 3 to rotate synchronously is arranged on the first transmission shaft 3, a fixed main speed regulating wheel 6 and a movable main speed regulating wheel 7 are further arranged on the first transmission shaft 3, and the distance between the movable main speed regulating wheel 7 and the fixed main speed regulating wheel 6 is adjustable; the second transmission shaft 4 is provided with a fixed driven speed regulating wheel 8 and a movable driven speed regulating wheel 9, and the second transmission shaft 4 is also provided with a pre-tightening device which enables the movable driven speed regulating wheel 9 to always have pre-tightening force towards the fixed driven speed regulating wheel 8; the opposite side surfaces of the fixed main speed regulating wheel 6 and the movable main speed regulating wheel 7 are inclined surfaces, namely the working surface is an inclined surface, a clamping groove is formed between the two inclined surfaces, and for the convenience of distinguishing, the clamping groove is called as a first clamping groove 12 in the embodiment; the opposite surfaces of the fixed flywheel 8 and the movable flywheel 9 are inclined surfaces, namely the working surfaces are inclined surfaces, a clamping groove is formed between the two inclined surfaces, and for convenience of distinguishing, the clamping groove is called as a second clamping groove 13 in the embodiment; the belt 14 is positioned between the presser foot and the feed dog 25, and the belt 14 is connected on the two clamping grooves; a speed sensing device 15 is arranged on the belt 14. The working surface of the belt 14 of the present invention has a slope matching the slopes of the first and second clamping grooves 12 and 13, and the cross section of the belt 14 is triangular or trapezoidal.
Furthermore, the pre-tightening device comprises a baffle plate 10 and a screw 16 arranged on the end surface of the other end of the second transmission shaft 4, the baffle plate 10 is sleeved outside a screw rod of the screw 16, one end of a spring 11 is tightly pressed on the end surface of the driven flywheel 9, and the other end of the spring is tightly pressed on the baffle plate 10. The spring 11 always has a pretightening force towards the fixed driven speed regulating wheel 8 under the limit of the baffle plate 10 and the screw 16.
Of course, the pre-tightening device may also be configured such that two or more guide posts are circumferentially disposed on the outer end surface of the driven flywheel 9, through holes are disposed in the baffle 10 in a one-to-one correspondence, the guide posts are inserted into the corresponding through holes, and a spring is sleeved on each guide post.
Further, the distance between the dynamic main speed regulating wheel 7 and the fixed main speed regulating wheel 6 can be adjusted as follows: an adjusting screw 17 is arranged on the end face of the other end of the first transmission shaft 3, the movable main speed adjusting wheel 7 is sleeved outside a screw rod of the first transmission shaft 3 and the adjusting screw 17, and the position of the adjusting screw 17 on the first transmission shaft 3 is adjusted to adjust the distance between the movable main speed adjusting wheel 7 and the fixed main speed adjusting wheel 6.
Specifically, the adjusting screw 17 is manually adjusted by a person or is connected with a motor and adjusted by the motor. The motor adopts a stepping motor. When the stepping motor is adopted for automatic adjustment, the speed can be adjusted when the machine runs.
In order to prevent the adjusting screw 17 from loosening during movement, a friction lining 18 is arranged between the main flywheel 7 and the adjusting screw 17.
The connection structure of the first transmission shaft 3 and the mounting seat 2 is as follows:
the mounting seat 2 is provided with a first bearing hole, one end of the first bearing hole close to the driven wheel 5 is a necking part 19, more than one bearing is arranged in the first bearing hole, the outer ring of the bearing is connected with the inner wall of the first bearing hole, and the first transmission shaft 3 is connected with the inner hole of the bearing; the first transmission shaft 3 is a stepped shaft, one end for connecting with a bearing is a small-diameter part, the other end for mounting the driven wheel 5, the fixed main speed regulating wheel 6 and the movable main speed regulating wheel 7 is a large-diameter part, a stepped surface is formed between the large-diameter part and the small-diameter part, and the first transmission shaft 3 is further provided with a clamp spring 20 for limiting the bearing between the clamp spring 20 and the necking part 19 and between the stepped surfaces. The circlip 20 limits the axial movement of the first transmission shaft 3.
Specifically, the bearings are provided with two bearings, namely a first bearing 21 and a second bearing 22, and a retainer ring 23 is arranged between the two bearings.
Further, a bearing cover 24 is sleeved outside one end of the first transmission shaft 3, and one end of the bearing cover 24 is inserted into the first bearing hole. The bearing cap 24 acts as a stop for the bearing.
The connection structure of the second transmission shaft 4 and the mounting seat 2 is as follows:
a second bearing hole is formed in the mounting seat 2, a necking part 19 is arranged at one end of the second bearing hole, more than one bearing is arranged in the second bearing hole, and one end of the second transmission shaft 4 is arranged on the mounting seat 2 through the bearing arranged in the second bearing hole; the outer ring of the bearing is connected with the inner wall of the second bearing hole, and the second transmission shaft 4 is connected with the inner hole of the bearing. The second transmission shaft 4 is a stepped shaft, one end for connecting with a bearing is a small-diameter part, the other end for installing the fixed driven speed regulating wheel 8 and the movable driven speed regulating wheel 9 is a large-diameter part, a stepped surface is formed between the large-diameter part and the small-diameter part, and a clamp spring 20 is further arranged on the second transmission shaft 4 to limit the bearing between the clamp spring 20 and the neck part 19 and between the stepped surfaces. The clamp spring 20 limits the axial movement of the second transmission shaft 3.
Specifically, the bearings are provided with two bearings, namely a first bearing 21 and a second bearing 22, and a retainer ring 23 is arranged between the two bearings.
Further, a bearing cover 24 is sleeved outside one end of the second transmission shaft 4, and one end of the bearing cover 24 is inserted into the second bearing hole. The bearing cap 24 acts as a stop for the bearing.
The mounting seat 2 for arranging the first transmission shaft 3 and the second transmission shaft 4 can be integrated or split. During split type structure, first transmission shaft 3, second transmission shaft 4 set up respectively on corresponding mount pad, and two mount pads pass through the screw connection.
In addition, the power device of the invention comprises a driven wheel 5 and a driving wheel 28 arranged on a mop shaft 27, wherein the driven wheel 5 is connected with the driving wheel 28 through a synchronous belt 26, and the mop shaft 27 is driven by a sewing machine motor to rotate. The driven wheel 5 drives the first transmission shaft 3 to rotate.
The working principle of the invention is as follows:
since the feed dog 25 is powered by the sewing machine motor, the linear velocity of the feed dog 25 has a linear relationship with the sewing machine motor rotational speed. When the speed sensing device 15 on the belt 14 detects that the linear speed of the belt 14 is greater than the linear speed of the feed dog 25, the speed sensing device 15 sends the detected signal to the electric control of the sewing machine. The electric control of the sewing machine controls the stepping motor to rotate the adjusting screw 17 or manually rotates the adjusting screw 17, so that the main movable speed regulating wheel 7 moves towards the main fixed speed regulating wheel 6, the space between the main movable speed regulating wheel 7 and the main fixed speed regulating wheel 6 is reduced, and the belt 14 has certain rigidity and the working surfaces of the belt 14, the main movable speed regulating wheel 7 and the main fixed speed regulating wheel 6 have certain inclination. The belt 14 expands towards the outer ring, meanwhile, the tension component of the belt 14 is larger than the elastic force of the spring 11, and the belt 14 shrinks towards the inner ring at the fixed-driven regulating wheel 8 and the movable-driven regulating wheel 9 to form a speed increasing process. When the linear velocity of the detection belt 14 is smaller than that of the step-sending teeth 25, the stepping motor controls the rotation of the adjusting screw 17, and the belt 14 is enlarged towards the outer ring of the fixed-driven regulating gear 8 and the movable-driven regulating gear 9 under the action of the elastic force of the spring 11, so that a deceleration process is formed.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A speed regulating device of a cloth feeding device on a sewing machine is characterized in that: the device comprises a mounting seat (2) connected to one side wall of a machine shell (1), wherein a first transmission shaft (3) for transmitting power to the mounting seat (2) from a driven wheel (5) of a power device and a second transmission shaft (4) arranged at intervals with the first transmission shaft (3) are arranged on the mounting seat (2), a fixed main speed regulating wheel (6) and a movable main speed regulating wheel (7) are arranged on the first transmission shaft (3), and the distance between the movable main speed regulating wheel (7) and the fixed main speed regulating wheel (6) is adjustable; a fixed driven speed regulating wheel (8) and a movable driven speed regulating wheel (9) are arranged on the second transmission shaft (4), and a pre-tightening device for enabling the movable driven speed regulating wheel (9) to always have pre-tightening force towards the fixed driven speed regulating wheel (8) is also arranged on the second transmission shaft (4); the opposite side surfaces of the fixed main speed regulating wheel (6) and the movable main speed regulating wheel (7) are inclined surfaces, and a clamping groove is formed between the two inclined surfaces; the opposite surfaces of the fixed driven speed regulating wheel (8) and the movable driven speed regulating wheel (9) are inclined surfaces, and a clamping groove is formed between the two inclined surfaces; the belt (14) is connected with the two clamping grooves; the belt (14) is positioned between the presser foot and the cloth feeding tooth, the belt (14) is provided with a speed sensing device (15), the speed sensing device (15) detects that the linear speed of the belt (14) is greater than that of the cloth feeding tooth (25), the distance between the movable main speed regulating wheel (7) and the fixed main speed regulating wheel (6) is reduced, and speed increasing is formed; when the speed sensing device (15) detects that the linear speed of the belt (14) is smaller than the linear speed of the cloth feeding teeth (25), the distance between the movable main speed regulating wheel (7) and the fixed main speed regulating wheel (6) is increased to form speed reduction.
2. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 1, wherein: the distance between the movable main speed regulating wheel (7) and the fixed main speed regulating wheel (6) can be adjusted as follows: an adjusting screw (17) is arranged on the end face of the other end of the first transmission shaft (3), the movable main speed regulating wheel (7) is sleeved outside a screw rod of the first transmission shaft (3) and the adjusting screw (17), and the position of the adjusting screw (17) on the first transmission shaft (3) is adjusted to adjust the distance between the movable main speed regulating wheel (7) and the fixed main speed regulating wheel (6).
3. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 2, wherein: the adjusting screw (17) is manually adjusted or is connected with a motor and automatically adjusted by the motor.
4. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 2, wherein: a friction plate (18) is arranged between the dynamic main speed regulating wheel (7) and the adjusting screw (17).
5. A cloth feeding apparatus speed adjusting device for a sewing machine according to any one of claims 1 to 4, characterized in that: first transmission shaft (3) are the step axle, including major diameter portion and minor diameter portion, are provided with first bearing hole on mount pad (2), the one end in first bearing hole is necking portion (19), and minor diameter portion sets up in first bearing hole through more than one bearing, still is provided with on first transmission shaft (3) and carries out spacing jump ring (20) to first transmission shaft (3) axial motion, and the bearing is located between jump ring (20) and necking portion (19).
6. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 5, wherein: the end portion of the small-diameter portion of the first transmission shaft (3) is sleeved with a bearing cover (24) for limiting the bearing, and one end of the bearing cover (24) is inserted into the first bearing hole.
7. A cloth feeding apparatus speed adjusting device for a sewing machine according to any one of claims 1 to 4, characterized in that: second transmission shaft (4) are the step axle, including major diameter portion and minor diameter portion, are provided with the second bearing hole on mount pad (2), the one end in second bearing hole is necking portion (19), and minor diameter portion sets up in first bearing hole through more than one bearing, still is provided with on second transmission shaft (4) and carries out spacing jump ring (20) to second transmission shaft (4) axial motion, and the bearing is located between jump ring (20) and necking portion (19).
8. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 7, wherein: and a bearing cover (24) for limiting the bearing is sleeved outside the end part of the small-diameter part of the second transmission shaft (4), and one end of the bearing cover (24) is inserted in the second bearing hole.
9. The device for regulating the speed of a cloth feeding device of a sewing machine according to claim 1, wherein: the pre-tightening device comprises a baffle plate (10) and a screw (16) arranged on the end face of the other end of the second transmission shaft (4), the baffle plate (10) is sleeved outside a screw rod of the screw (16), one end of a spring (11) is tightly pressed on the end face of the movable driven speed regulating wheel (9), and the other end of the spring is tightly pressed on the baffle plate (10).
10. A sewing machine characterized by: a governor device including the cloth feeding apparatus of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493182.4A CN107237052B (en) | 2017-06-26 | 2017-06-26 | Speed regulating device of cloth feeding device on sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493182.4A CN107237052B (en) | 2017-06-26 | 2017-06-26 | Speed regulating device of cloth feeding device on sewing machine and sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237052A CN107237052A (en) | 2017-10-10 |
| CN107237052B true CN107237052B (en) | 2020-01-07 |
Family
ID=59986535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493182.4A Active CN107237052B (en) | 2017-06-26 | 2017-06-26 | Speed regulating device of cloth feeding device on sewing machine and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237052B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015964A (en) * | 1959-11-23 | 1962-01-09 | Takanosuke Oki | Stepless speed changing means |
| JPS56153147A (en) * | 1980-04-30 | 1981-11-27 | Aisin Warner Ltd | Oil pressure regulating device for v-belt type stepless speed changing apparatus for vehicle |
| CN2594545Y (en) * | 2002-12-30 | 2003-12-24 | 欧北根 | Stepless gear box with belt transmission |
| CN2605099Y (en) * | 2002-12-30 | 2004-03-03 | 欧北根 | Headstock box for stepless speed regulating lathe |
| CN2769287Y (en) * | 2004-12-31 | 2006-04-05 | 潘国民 | Stepless variable speed work-feeding means for industrial sewing machine |
| CN201212550Y (en) * | 2008-07-01 | 2009-03-25 | 重庆工学院 | Electric speed regulating device of stepless transmission |
| CN201881362U (en) * | 2010-12-08 | 2011-06-29 | 南京百为五金工具有限公司 | Speed-adjusting electric tool |
| CN203487351U (en) * | 2013-10-10 | 2014-03-19 | 詹国强 | Belt-type synchronous edge stitching machine |
| CN205998286U (en) * | 2016-08-30 | 2017-03-08 | 太极集团浙江东方制药有限公司 | Automatic granular packaging machine |
-
2017
- 2017-06-26 CN CN201710493182.4A patent/CN107237052B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107237052A (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201176342Y (en) | Winding device | |
| CN109989186B (en) | Composite regulating method | |
| CN104609276B (en) | Elevator speed limiter and control method thereof | |
| CN206399385U (en) | A kind of measurement apparatus of bearing inner race circular runout | |
| CN107263525B (en) | Variable-rigidity rope-driven joint for exoskeleton and walking robot | |
| CN107237052B (en) | Speed regulating device of cloth feeding device on sewing machine and sewing machine | |
| CN210763653U (en) | Yarn guide for textile machinery | |
| US20190154131A1 (en) | Electrically drivable swiveling device | |
| CN107151870B (en) | Actuating device of cloth feeding device on sewing machine and sewing machine | |
| CN107587216B (en) | Elastic suspension structure for electric ingot installation | |
| JP5534965B2 (en) | Rope groove undercut correction processing apparatus and rope groove undercut correction processing method using this correction processing apparatus | |
| US5263909A (en) | Drive with torque arm support for exercise device | |
| CN107152484B (en) | Intelligent shock absorber and control method thereof | |
| CN212638120U (en) | Adjustable damping film releasing shaft structure with brake | |
| CN219341168U (en) | Automatic blowing material collecting device of non-woven fabrics | |
| CN209813726U (en) | Electronic accelerator pedal assembly | |
| EP1642697A3 (en) | Injection device for injection molding machine | |
| CN209409368U (en) | A kind of crankshaft dynamic balance device | |
| CN210697850U (en) | High-speed dental handpiece | |
| CN206617518U (en) | Antiwear timing belt bounce limiting mechanism | |
| CN208803227U (en) | A kind of driving device of yarn mouth | |
| CN209192842U (en) | A kind of free clutch transmission of inclination conveying gravity carrying | |
| CN219174754U (en) | Needle distance adjusting and presser foot lifting device of sewing machine and sewing machine | |
| CN217600962U (en) | Warp tension adjusting mechanism | |
| CN211112387U (en) | Rotor type open-end spinning machine coiling motor hold-in range overspeed device tensioner |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address |