CN213417243U - Adjusting mechanism for presser foot interaction amount of sewing machine - Google Patents
Adjusting mechanism for presser foot interaction amount of sewing machine Download PDFInfo
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- CN213417243U CN213417243U CN202022216042.2U CN202022216042U CN213417243U CN 213417243 U CN213417243 U CN 213417243U CN 202022216042 U CN202022216042 U CN 202022216042U CN 213417243 U CN213417243 U CN 213417243U
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Abstract
The utility model provides an adjusting mechanism of mutual volume of sewing machine presser foot, including upper shaft, presser foot lifting unit and drive assembly, the upper shaft is overlapped and is equipped with the eccentric wheel that can rotate synchronously, and presser foot lifting unit includes drive shaft and detachably fixes the driving piece that is used for driving the up-and-down motion of sewing machine's inside and outside presser foot on the drive shaft; the transmission assembly is used for connecting the upper shaft with the driving shaft in a transmission manner, and comprises a transmission component, an adjusting component and a driving component, one end part of the transmission component is rotatably sleeved on the eccentric wheel, the other end part of the transmission component is connected with the adjusting component through a pin shaft in a pivot manner, the adjusting component is detachably fixed on the driving shaft, the driving pin shaft is driven by the driving component to move relative to the adjusting component, and the position of the pivot connection point of the transmission component and the adjusting component is changed, so that the amplitude of the reciprocating motion of the adjusting component is changed, the adjustment of the presser foot interaction amount in the sewing process is realized, the structure is simple, the operation is convenient, and the difficulty.
Description
Technical Field
The utility model belongs to sewing machine product field, concretely relates to adjustment mechanism of mutual volume of sewing machine presser foot.
Background
As is well known, the presser foot interaction amount involved in a sewing machine is: when feeding, the inner and outer press feet move up and down, and the height value is called as the interaction quantity of the inner and outer press feet.
If the interaction amount of the presser foot is kept fixed, when the sewing material becomes thick, the phenomenon that stitches become dense and even the presser foot gnaws and breaks the sewing material is easily caused, when the sewing material becomes thin, great noise can be generated, and the phenomenon that the sewing material slips and cannot be moved easily in high-speed sewing.
In order to solve the problem, sewing machines capable of adjusting the presser foot interaction amount appear in the market, but the adjusting mechanism of the sewing machine can adjust the presser foot interaction amount after stopping, so that the operation is inconvenient, and when the thickness of a sewing material is changed frequently, the sewing efficiency is reduced due to frequent stopping; although there are adjusting mechanisms capable of adjusting the interaction amount of the presser foot during sewing, for example, chinese patents CN209162365 and CN209923579 disclose two adjusting mechanisms capable of adjusting the interaction amount of the presser foot during sewing respectively, but these two schemes have complicated structure and high difficulty in later maintenance and repair.
Disclosure of Invention
The utility model aims at overcoming prior art's shortcoming, providing one kind can be at the sewing in-process to the sewing machine presser foot mutual volume adjustment mechanism who adjusts, this adjustment mechanism simple structure, convenient operation, the degree of difficulty of later maintenance is little.
In order to achieve the above object, the utility model adopts the technical scheme that an adjusting mechanism for the mutual quantity of sewing machine presser foot comprises:
the upper shaft can rotate around the axis of the upper shaft, an eccentric wheel is sleeved on the upper shaft, and the eccentric wheel and the upper shaft are relatively fixed;
the presser foot lifting assembly comprises a driving shaft and a driving piece, the driving shaft can rotate around the axis of the driving shaft in the forward and reverse directions, the driving shaft is arranged in parallel with the upper shaft, the driving piece is detachably fixed at one end part of the driving shaft, and the driving piece is used for driving an inner presser foot and an outer presser foot of the sewing machine to move up and down;
the transmission assembly is used for connecting the upper shaft with the driving shaft in a transmission way;
the transmission assembly comprises a transmission component, an adjusting component and a driving component; one end of the transmission component is rotatably sleeved on the eccentric wheel, the other end of the transmission component is provided with a pin shaft, and the transmission component is in pivot connection with the adjusting component through the pin shaft; the adjusting part is detachably fixed at the end part of the driving shaft far away from the driving part; the driving component is used for driving the pin shaft to move relative to the adjusting component;
when the upper shaft rotates, the eccentric wheel rotates along with the rotation to drive the transmission part to reciprocate, the transmission part drives the adjusting part to reciprocate through the pin shaft, and the adjusting part drives the driving part to reciprocate through the driving shaft, so that the inner presser foot and the outer presser foot of the sewing machine are driven to move up and down; when the driving component drives the pin shaft to move relative to the adjusting component, the position of the pivot connection point of the transmission component and the adjusting component is changed, so that the amplitude of the reciprocating motion of the adjusting component is changed, and the adjustment of the presser foot interaction amount of the sewing machine is realized.
Preferably, the transmission component is an eccentric connecting rod, the pin shaft is arranged at the end part of the eccentric connecting rod far away from the eccentric wheel along the direction perpendicular to the plane of the eccentric connecting rod, and the two end parts of the pin shaft protrude outwards relative to the eccentric connecting rod.
Further preferably, the pin is rotatably connected with the eccentric connecting rod.
Preferably, the upper end detachably of adjusting part fixes the drive shaft is kept away from the tip of driving piece, the lower tip downwardly extending of adjusting part, be provided with the waist type groove that extends along upper and lower direction on the adjusting part, the round pin axle sets up with sliding from top to bottom in the waist type inslot, the outer periphery of round pin axle with the inner wall in waist type groove is laminated mutually.
Further preferably, the waist-shaped groove is an arc-shaped groove, and the circle center of the arc-shaped groove is located on one side of the arc-shaped groove close to the upper shaft.
Preferably, the driving part comprises a fork-shaped rod and an air cylinder, one end of the fork-shaped rod is rotatably sleeved on the upper shaft, the other end of the fork-shaped rod is provided with a sliding groove extending along the length direction of the fork-shaped rod, the pin shaft is slidably arranged in the sliding groove, and the end of the air cylinder rod of the air cylinder is rotatably connected with the fork-shaped rod.
Further preferably, a sliding block is arranged in the sliding groove, and the pin shaft is rotatably arranged on the sliding block in a penetrating mode.
Further preferably, the cylinder is located above the fork-shaped lever.
Further preferably, the cylinder is fixed to a body of the sewing machine, the driving part further includes a connecting rod, one end of the connecting rod is rotatably connected to an end of the cylinder rod, and the other end of the connecting rod is rotatably connected to the fork-shaped rod.
Further preferably, the connecting rod is rotatably connected with the middle part of the fork-shaped rod.
Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model provides an adjusting mechanism of mutual volume of sewing machine presser foot, including upper shaft, presser foot lifting unit and drive assembly, the upper shaft is overlapped and is equipped with the eccentric wheel that can rotate synchronously, and presser foot lifting unit includes drive shaft and detachably fixes the driving piece that is used for driving the up-and-down motion of sewing machine's inside and outside presser foot on the drive shaft; the transmission assembly is used for connecting the upper shaft with the driving shaft in a transmission manner, and comprises a transmission component, an adjusting component and a driving component, one end part of the transmission component is rotatably sleeved on the eccentric wheel, the other end part of the transmission component is connected with the adjusting component through a pin shaft in a pivot manner, the adjusting component is detachably fixed on the driving shaft, the driving pin shaft is driven by the driving component to move relative to the adjusting component, and the position of the pivot connection point of the transmission component and the adjusting component is changed, so that the amplitude of the reciprocating motion of the adjusting component is changed, the adjustment of the presser foot interaction amount in the sewing process is realized, the structure is simple, the operation is convenient, and the difficulty.
Drawings
Fig. 1 is a schematic perspective view of a sewing machine according to a preferred embodiment of the present invention.
Fig. 2 is an enlarged perspective view of the adjustment mechanism of fig. 1.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a rear view schematic of fig. 2.
Fig. 5 is an enlarged view of the assembly at the transmission assembly of fig. 2.
Wherein:
10. an upper shaft; 101. an eccentric wheel; 20. a presser foot lifting assembly; 201. a drive shaft; 202. a drive member; 30. a transmission assembly; 301. a transmission member; 302. an adjustment member; 3021. a waist-shaped groove; 303. a drive member; 3031. a fork-shaped lever; 3031a sliding chute; 3031b, a slider; 3032. a cylinder; 3032a cylinder rod; 3032b, a connecting rod; 304. and (7) a pin shaft.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides an adjustment mechanism of mutual volume of sewing machine presser foot, include: the device comprises an upper shaft 10, a presser foot lifting assembly 20 and a transmission assembly 30, wherein the upper shaft 10 can rotate around the axis of the upper shaft 10, an eccentric wheel 101 is sleeved on the upper shaft 10, and the eccentric wheel 101 and the upper shaft 10 are kept relatively fixed; the presser foot lifting assembly 20 comprises a driving shaft 201 and a driving member 202, the driving shaft 201 can rotate forward and backward around the axis of the driving shaft 201, the driving shaft 201 is arranged in parallel with the upper shaft 10, the driving member 202 is detachably fixed at one end part of the driving shaft 201, and the driving member 202 is used for driving the inner and outer presser feet of the sewing machine to move up and down; the transmission assembly 30 is used for transmission connection of the upper shaft 10 with the driving shaft 201.
As shown in fig. 1-2, the transmission assembly 30 includes a transmission member 301, an adjustment member 302, and a driving member 303; one end of the transmission component 301 is rotatably sleeved on the eccentric wheel 101, the other end of the transmission component 301 is provided with a pin shaft 304, and the transmission component 301 is pivotally connected with the adjusting component 302 through the pin shaft 304; the adjusting member 302 is detachably fixed at the end of the driving shaft 201 far away from the driving member 202, specifically, the adjusting member 302 is a crank; the driving member 303 is used to drive the pin 304 to move relative to the adjustment member 302.
The following explains the adjusting principle of the adjusting mechanism provided by the present invention.
When the upper shaft 10 rotates, the eccentric wheel 101 rotates to drive the transmission part 301 to reciprocate, the transmission part 301 drives the adjusting part 302 to reciprocate through the pin shaft 304, and the adjusting part 302 drives the driving part 202 to reciprocate through the driving shaft 201, so that the inner and outer press feet of the sewing machine are driven to move up and down; when the driving component 301 drives the pin shaft 304 to move relative to the adjusting component 302, the position of the pivot connection point of the transmission component 301 and the adjusting component 302 changes, so that the amplitude of the reciprocating motion of the adjusting component 302 changes, and the adjustment of the presser foot interaction amount of the sewing machine is realized.
As shown in fig. 2 to 5, in the present embodiment, the transmission component 301 is an eccentric connecting rod, the pin 304 is disposed through an end of the eccentric connecting rod away from the eccentric wheel 101 in a direction perpendicular to a plane of the eccentric connecting rod, and two ends of the pin 304 protrude outward relative to the eccentric connecting rod; the adjusting component 302 is a crank, the upper end of the adjusting component 302 is detachably fixed at the end of the driving shaft 201 far away from the driving part 202, the lower end of the adjusting component 302 extends downwards, a waist-shaped groove 3021 extending along the up-down direction is arranged on the adjusting component 302, the waist-shaped groove 3021 is an arc-shaped groove, and the center of the arc-shaped groove is located at one side of the arc-shaped groove close to the upper shaft 10; the driving component 303 comprises a fork-shaped rod 3031 and an air cylinder 3032, one end of the fork-shaped rod 3031 is rotatably sleeved on the upper shaft 10, the other end of the fork-shaped rod 3031 is provided with a sliding chute 3031a extending along the length direction of the fork-shaped rod 3031, a sliding block 3031b is arranged in the sliding chute 3031a, and the sliding block 3031b can slide along the extending direction of the sliding chute 3031a.
As shown in fig. 2 to 5, in the present embodiment, one end of the pin 304 is slidably inserted into the waist-shaped groove 3021 up and down, the outer circumference of the pin 304 at the end is engaged with the inner wall of the waist-shaped groove 3021, and the other end of the pin 304 is rotatably inserted into the slider 3031b, so that the pin 304 is slidably disposed in the sliding slot 3031a, and the pin 304 is rotatably connected to the eccentric link to reduce friction between the pin 304 and the waist-shaped groove 3021 and the slider 3031b.
The purpose of the sliding slot 3031a is to provide movement of the pin 304 in other directions except the up-down direction to match up-down sliding of the pin 304 in the arc-shaped slot, so as to prevent the eccentric link from being deadlocked when the eccentric link reciprocates.
As shown in fig. 2 to 5, in this embodiment, the air cylinder 3032 is located above the fork rod 3031, an end portion of a cylinder rod 3032a of the air cylinder 3032 is rotatably connected with the fork rod 3031, specifically, the air cylinder 3032 is fixed on the body of the sewing machine, the cylinder rod 3032a extends and contracts in the up-down direction, the driving member 303 further includes a connecting rod 3033, an upper end portion of the connecting rod 3033 is rotatably connected with an end portion of the cylinder rod 3032a, and a lower end portion of the connecting rod 3033 is rotatably connected with a middle portion of the fork rod 3031.
The cylinder 3032 is fixed to the sewing machine body in such a manner that vibration caused by frequent extension and contraction of the cylinder rod 3032a is prevented, and the connecting rod 3033 is provided in order to adjust the extension and contraction movement of the cylinder rod 3032a to a movement having an up-down direction and other directions so as to match the rotation of the fork rod 3031 about the upper shaft 10.
The utility model provides an adjustment mechanism of mutual volume of sewing machine presser foot, a tip through making drive disk assembly rotationally overlaps and establishes on the eccentric wheel, another tip that makes drive disk assembly is through round pin axle and adjustment assembly looks pivot connection, make adjustment assembly detachably fix in the drive shaft, drive the round pin axle through the drive assembly and move for adjustment assembly, change the position of drive disk assembly and adjustment assembly pivot tie point, thereby change adjustment assembly reciprocating motion's range, realized the regulation to the mutual volume of presser foot at the sewing in-process, moreover, the steam generator is simple in structure, high durability and convenient operation, the degree of difficulty of later maintenance is little.
The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. An adjusting mechanism for presser foot interaction amount of a sewing machine, comprising:
the upper shaft can rotate around the axis of the upper shaft, an eccentric wheel is sleeved on the upper shaft, and the eccentric wheel and the upper shaft are relatively fixed;
the presser foot lifting assembly comprises a driving shaft and a driving piece, the driving shaft can rotate around the axis of the driving shaft in the forward and reverse directions, the driving shaft is arranged in parallel with the upper shaft, the driving piece is detachably fixed at one end part of the driving shaft, and the driving piece is used for driving an inner presser foot and an outer presser foot of the sewing machine to move up and down;
the transmission assembly is used for connecting the upper shaft with the driving shaft in a transmission way;
the method is characterized in that:
the transmission assembly comprises a transmission component, an adjusting component and a driving component; one end of the transmission component is rotatably sleeved on the eccentric wheel, the other end of the transmission component is provided with a pin shaft, and the transmission component is in pivot connection with the adjusting component through the pin shaft; the adjusting part is detachably fixed at the end part of the driving shaft far away from the driving part; the driving component is used for driving the pin shaft to move relative to the adjusting component;
when the upper shaft rotates, the eccentric wheel rotates along with the rotation to drive the transmission part to reciprocate, the transmission part drives the adjusting part to reciprocate through the pin shaft, and the adjusting part drives the driving part to reciprocate through the driving shaft, so that the inner presser foot and the outer presser foot of the sewing machine are driven to move up and down; when the driving component drives the pin shaft to move relative to the adjusting component, the position of the pivot connection point of the transmission component and the adjusting component is changed, so that the amplitude of the reciprocating motion of the adjusting component is changed, and the adjustment of the presser foot interaction amount of the sewing machine is realized.
2. The mechanism of claim 1 wherein the adjustment mechanism for the amount of presser foot interaction comprises: the transmission part is an eccentric connecting rod, the pin shaft penetrates through the end part of the eccentric connecting rod far away from the eccentric wheel along the direction perpendicular to the plane of the eccentric connecting rod, and two end parts of the pin shaft protrude outwards relative to the eccentric connecting rod.
3. The adjusting mechanism of presser foot interaction amount of sewing machine according to claim 2, characterized in that: the pin shaft is rotatably connected with the eccentric connecting rod.
4. The mechanism of claim 1 wherein the adjustment mechanism for the amount of presser foot interaction comprises: the upper end detachably of adjusting part fixes the drive shaft is kept away from the tip of driving piece, the lower tip downwardly extending of adjusting part, be provided with the waist type groove that extends along upper and lower direction on the adjusting part, the round pin axle sets up with sliding from top to bottom in the waist type inslot, the outer periphery of round pin axle with the inner wall in waist type groove is laminated mutually.
5. The adjustment mechanism of presser foot interaction amount of sewing machine according to claim 4, characterized in that: the waist-shaped groove is an arc-shaped groove, and the circle center of the arc-shaped groove is positioned at one side of the arc-shaped groove close to the upper shaft.
6. The mechanism of claim 1 wherein the adjustment mechanism for the amount of presser foot interaction comprises: the driving part comprises a fork-shaped rod and an air cylinder, one end part of the fork-shaped rod is rotatably sleeved on the upper shaft, the other end part of the fork-shaped rod is provided with a sliding groove extending along the length direction of the fork-shaped rod, the pin shaft is slidably arranged in the sliding groove, and the end part of an air cylinder rod of the air cylinder is rotatably connected with the fork-shaped rod.
7. The mechanism of claim 6 wherein the adjustment mechanism for the amount of presser foot interaction comprises: a sliding block is arranged in the sliding groove, and the pin shaft is rotatably arranged on the sliding block in a penetrating mode.
8. The mechanism of claim 6 wherein the adjustment mechanism for the amount of presser foot interaction comprises: the cylinder is located above the fork-shaped rod.
9. The mechanism of claim 6 wherein the adjustment mechanism for the amount of presser foot interaction comprises: the cylinder is fixed on the sewing machine body, the driving part further comprises a connecting rod, one end of the connecting rod is rotatably connected with the end of the cylinder rod, and the other end of the connecting rod is rotatably connected with the fork-shaped rod.
10. The adjustment mechanism of presser foot interaction amount of sewing machine according to claim 9, characterized in that: the connecting rod is rotatably connected with the middle part of the fork-shaped rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216042.2U CN213417243U (en) | 2020-09-30 | 2020-09-30 | Adjusting mechanism for presser foot interaction amount of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216042.2U CN213417243U (en) | 2020-09-30 | 2020-09-30 | Adjusting mechanism for presser foot interaction amount of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN213417243U true CN213417243U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022216042.2U Active CN213417243U (en) | 2020-09-30 | 2020-09-30 | Adjusting mechanism for presser foot interaction amount of sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN213417243U (en) |
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2020
- 2020-09-30 CN CN202022216042.2U patent/CN213417243U/en active Active
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