CN112430919B - Needle bar driving clutch mechanism - Google Patents
Needle bar driving clutch mechanism Download PDFInfo
- Publication number
- CN112430919B CN112430919B CN202011105320.5A CN202011105320A CN112430919B CN 112430919 B CN112430919 B CN 112430919B CN 202011105320 A CN202011105320 A CN 202011105320A CN 112430919 B CN112430919 B CN 112430919B
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- Prior art keywords
- needle bar
- driver
- presser foot
- clutch
- driving clutch
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- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims description 48
- 230000009471 action Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009956 embroidering Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
Abstract
The invention belongs to the technical field of embroidery machines, and particularly relates to a needle bar driving clutch mechanism. The invention comprises a guide rod which is vertically and fixedly arranged, a presser foot driver and a needle bar driver are axially and movably arranged on the guide rod, the needle bar driver and the presser foot driver are arranged at intervals in the vertical direction, the needle bar driver is connected with a needle bar through a clutch structure, and a linkage clutch control structure which is provided with power by the presser foot driver and controls the clutch structure to act is arranged between the presser foot driver and the needle bar driver. According to the invention, the linkage type clutch control structure and the clutch structure are arranged, when the lock head is required to be not operated, the needle bar and the needle bar driver can be separated through the linkage type clutch control structure, so that the needle bar is not required to be dropped down any more, the high-speed needle bar is prevented from impacting the presser foot, mechanical parts are damaged, the needle bar is reconnected, and the needle bar falls down again only by rotating the clutch structure to an initial position, and the needle bar is driven to continue to fall through the needle bar driver.
Description
Technical Field
The invention belongs to the technical field of embroidery machines, and relates to a needle bar driving clutch mechanism.
Background
Along with the updating of people's consumption concept and the promotion of aesthetic point of view, in recent years, the industry such as home textile, clothing is to the demand of fabric pattern embroidering processing higher and higher, including performance, application scope, throughput etc. need constantly to promote the embroidery processing equipment that accords with market development demand. The needle bar mechanism is an important component in the embroidery machine, and generally adopts a needle bar driver to drive the needle bar to reciprocate up and down so as to drop the needle. When the needle bar does not need to fall, the prior art generally realizes control through a lock motor. However, if the lock motor fails, the pin falls down, which is likely to cause the pin to strike the presser foot and damage other mechanical parts.
In order to overcome the defects of the prior art, various solutions are provided through continuous exploration, such as China patent discloses a computerized embroidery machine lock head [ application number CN201420377987.4], which comprises a motor, a first bracket, a torsion spring, rollers, a driving shaft, a first driving swing arm, a limit stop, a buffer cushion, a pin, a fixing shaft, a second bracket, a handle, a notch, a positioning seat and a second driving swing arm, wherein the first bracket is arranged at the upper end of the motor, the limit stop is arranged on the first bracket, the positioning seat is arranged on the side surface of the first bracket, the first driving swing arm is arranged at the upper end of the main shaft, the driving shaft is provided with the rollers, one end of the torsion spring is fixedly connected with the first bracket, the other end of the torsion spring is fixedly connected with the first driving swing arm, the lower end of the motor is provided with the second bracket, the buffer cushion and the fixing shaft are arranged on the second bracket, the handle is provided with the notch, the lower end of the main shaft is provided with the second driving swing arm, and the second driving swing arm is provided with the pin. This patent attempts to reduce malfunctions by improving the stability and operational convenience of the lock mechanism. However, regardless of how the failure rate is reduced, since the lock motor is used, the failure is necessarily caused as long as the motor fails, and thus the failure cannot be avoided.
Disclosure of Invention
The invention aims to solve the problems and provide a needle bar driving clutch mechanism.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a needle bar drive clutch mechanism, includes the guide arm of vertical fixed setting, axial activity is provided with presser foot driver and needle bar driver on the guide arm, needle bar driver and presser foot driver set up at vertical direction interval, needle bar driver and needle bar between link to each other through clutch structure, presser foot driver and needle bar driver between be equipped with thereby by the presser foot driver provide the linkage clutch control structure of power control clutch structure action.
In the above needle bar driving clutch mechanism, the needle bar driver is located above the presser foot driver, the linkage clutch control structure controls the clutch structure to act when the presser foot driver is in a lifting state and the needle bar driver is in a lifting state so as to separate the needle bar driver from the needle bar, and the clutch structure resets when the presser foot driver descends so as to connect the needle bar driver with the needle bar.
In the needle bar driving clutch mechanism, the linkage type clutch control structure comprises a transmission mechanism arranged on one side of the guide rod, a power input end of the transmission mechanism is connected with the presser foot driver in a lifting state, and a power output end of the transmission mechanism acts on the needle bar driver.
In the needle bar driving clutch mechanism, the transmission mechanism comprises a transmission piece with the middle part rotatably connected to the machine head, the transmission piece is in a V shape, a supported part is arranged at the lower end of the transmission piece, a pushing part acting on a needle bar driver is arranged at the upper end of the transmission piece, and a pushing part lifting the supported part when the presser foot driver is in a lifting state is arranged on the presser foot driver.
In the needle bar driving clutch mechanism, the pushing and lifting part is arranged on the presser foot driver and transversely extends, and the pushing and lifting part and the presser foot driver are connected into a whole; the supporting part is fixed at the lower end of the transmission piece through a pin extending transversely, and the supporting part extends forwards; the pushing part is positioned above the supported part, and the vertical projections of the pushing part and the supported part are mutually intersected; the pushing part is cylindrical and transversely extends to the front side of the needle bar driver.
In the needle bar driving clutch mechanism, the transmission piece is arranged on the machine head through the rotating shaft, the rotating shaft is sleeved with the return torsion spring, and the return torsion spring acts on the transmission piece and the machine head respectively.
In the needle bar driving clutch mechanism, the needle bar driver comprises a lifting slide seat sleeved on the guide rod, the lifting slide seat is provided with a driving clutch piece axially positioned and circumferentially rotatably connected with the lifting slide seat, a clutch structure capable of separating from the needle bar after the driving clutch piece circumferentially rotates is arranged between the driving clutch piece and the needle bar, a circumferentially rotating reset spring capable of resetting the driving clutch piece after circumferentially rotating to enable the needle bar driver to be connected with the needle bar again is arranged between the lifting slide seat and the driving clutch piece, and the driving clutch piece is provided with a presser foot linkage part axially extending along the driving clutch piece, and the pushing part is in sliding contact or rolling contact with the presser foot linkage part.
In the needle bar driving clutch mechanism, the presser foot linkage part is columnar and arranged at one side of the driving clutch piece, and two ends of the presser foot linkage part respectively exceed the end parts of the driving clutch piece; the driving clutch piece is also provided with a tapered end motor pushing part, the tapered end motor pushing part is columnar and arranged on the other side of the driving clutch piece, and two ends of the tapered end motor pushing part respectively exceed the end parts of the driving clutch piece.
In the needle bar driving clutch mechanism, a rotation limiting structure is arranged between the lifting sliding seat and the driving clutch piece, the limiting direction of the rotation limiting structure is opposite to the circumferential rotation direction of the driving clutch piece, the rotation limiting structure comprises a limiting body fixed on the lifting sliding seat and a limiting surface arranged on the driving clutch piece, the limiting body and the limiting surface are mutually abutted under the action of a circumferential rotation reset spring, and when the limiting body and the limiting surface are mutually abutted, the clutch structure is in a state that a needle bar driver is connected with a needle bar.
In the needle bar driving clutch mechanism, the driving clutch piece is made of plastic; the circumferential rotation reset spring comprises a torsion spring, one foot of the torsion spring is connected with the lifting slide seat, and the other foot of the torsion spring is connected with the driving clutch piece; the clutch structure comprises a bayonet arranged on the driving clutch piece and a clamping head arranged on the needle rod, wherein the bayonet transversely extends and two ends of the bayonet are communicated, and when the driving clutch piece circumferentially rotates, the clamping head can be clamped in or separated from the bayonet.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the linkage type clutch control structure and the clutch structure are arranged, when the lock head is required to be not operated, the needle bar and the needle bar driver can be separated through the linkage type clutch control structure, so that the needle bar is not required to be dropped down any more, the high-speed needle bar is prevented from impacting the presser foot, mechanical parts are damaged, the needle bar is reconnected, and the needle bar falls down again only by rotating the clutch structure to an initial position, and the needle bar is driven to continue to fall through the needle bar driver. That is, a linkage relationship is established between the presser foot driver and the needle bar driver, and clutch control can be realized mechanically even if a lock motor is not provided.
2. According to the invention, when the needle bar clutch structure rotates to the needle bar connection state, the limiting surface on the driving clutch piece is in abutting fit with the limiting body, so that the driving clutch piece can not excessively rotate in the direction opposite to the circumferential rotation direction of the driving clutch piece, the limiting of the driving clutch piece is realized, and the clutch structure is tightly connected with the needle bar in the connection state.
3. According to the invention, the pushing and lifting part is arranged on the presser foot driver and transversely extends, and the supported part extends forwards, so that the pushing and lifting part is positioned above the supported part, and the vertical projections of the pushing and lifting part and the supported part are mutually intersected, so that the pushing and lifting part can be ensured to be always kept in contact with the supported part in the lifting process, and the supported part is driven to rotate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial structural schematic of the present invention.
Fig. 3 is a schematic view of the structure of the needle bar driver. A step of
Fig. 4 is a schematic view of another aspect of the present invention.
In the figure: the lifting slide seat 1, a needle bar 5, a circumferential rotation reset spring 7, a presser foot driver 8, a presser foot linkage part 9, a rotation limiting structure 10, a limiting body 11, a limiting surface 12, a lock motor pushing part 13, a bayonet 21, a guide rod 30, a needle bar driver 31, a clutch structure 32, a linkage clutch control structure 33, a transmission mechanism 34, a machine head 35, a transmission piece 36, a bearing part 37, a pushing part 38, a pushing part 39, a pin 40, a rotating shaft 41, a return torsion spring 42, a clamping head 43, a lock transmission mechanism 52 and a lock motor 53.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a needle bar driving clutch mechanism comprises a guide bar 30 which is vertically and fixedly arranged, a presser foot driver 8 and a needle bar driver 31 are axially and movably arranged on the guide bar 30, the needle bar driver 31 and the presser foot driver 8 are arranged at intervals in the vertical direction, the needle bar driver 31 and the needle bar 5 are connected through a clutch structure 32, and a linkage clutch control structure 33 which is provided with power by the presser foot driver 8 and controls the clutch structure 32 to act is arranged between the presser foot driver 8 and the needle bar driver 31.
In this embodiment, the presser foot driver 8 and the needle bar driver 31 can do reciprocating rectilinear motion along the axial direction of the guide bar 30, the clutch structure 32 can be driven to do circumferential rotation along the axial direction of the guide bar 30 by the linkage type clutch control structure 33, and then the connection or disconnection state switching between the needle bar driver 31 and the needle bar 5 is completed by the rotation of the clutch structure 32, when the lock is required to be not operated, the needle bar 5 and the needle bar driver 31 can be disconnected by the linkage type clutch control structure 33, the needle bar 5 is not dropped any more, the presser foot is prevented from being impacted by the high-speed needle bar, mechanical parts are damaged, the needle bar 5 is reconnected and the needle bar 5 is enabled to drop again, only the clutch structure 32 is required to be rotated to the initial position, and the needle bar 5 is driven to drop continuously by the needle bar driver 31. The invention establishes a linkage relationship between the presser foot driver 8 and the needle bar driver 31, and can realize clutch control of the needle bar driver 31 and the needle bar 5 in a mechanical mode even if a lock motor 53 is not arranged.
As shown in fig. 1-4, the needle bar driver 31 is located above the presser foot driver 8, the linkage clutch control structure 33 controls the clutch structure 32 to act to separate the needle bar driver 31 from the needle bar 5 when the presser foot driver 8 is in the lifted state and the needle bar driver 31 is in the lifted state, and the clutch structure 32 resets to interconnect the needle bar driver 31 and the needle bar 5 when the presser foot driver 8 is lowered.
In this embodiment, after the presser foot driver 8 is lifted upwards, the linkage clutch control structure 33 is driven to rotate, the clutch structure 32 is driven to rotate through the abutting action between the linkage clutch control structure 33 and the clutch structure 32, so that the needle bar driver 31 and the needle bar 5 are separated from each other, the separation of the needle bar 5 is completed, the needle bar 5 is ensured not to drop down, the presser foot is prevented from being impacted by the high-speed needle bar, mechanical parts are damaged, when the needle bar 5 needs to be reconnected and the needle bar 5 falls down again, the presser foot driver 8 is only required to be lowered to an initial position and the clutch structure 32 is reset, the clutch structure 32 and the needle bar 5 are reconnected, and the needle bar 5 is continuously driven to fall down through the needle bar driver 31.
As shown in fig. 2, the linkage clutch control structure 33 includes a transmission mechanism 34 disposed at one side of the guide rod 30, a power input end of the transmission mechanism 34 is connected to the presser foot driver 8 in a lifted state, and a power output end of the transmission mechanism 34 acts on the needle bar driver 31.
In this embodiment, when the presser foot driver 8 is lifted upwards, the transmission mechanism 34 is driven to rotate by the abutting action between the presser foot driver 8 and the power input end of the transmission mechanism 34, and the rotating force is transmitted to the power output end of the transmission mechanism 34 and acts on the needle bar driver 31, so that the clutch structure 32 on the needle bar driver 31 rotates circumferentially along the axial direction of the guide bar 30, and the needle bar driver 31 and the needle bar 5 are separated.
As shown in fig. 1 and 2, the transmission mechanism 34 includes a transmission member 36 with a middle portion rotatably connected to the handpiece 35, the transmission member 36 is V-shaped, a supporting portion 37 is provided at a lower end of the transmission member 36, a pushing portion 38 acting on the needle bar driver 31 is provided at an upper end of the transmission member 36, and a lifting portion 39 for lifting the supporting portion 37 when the presser bar driver 8 is in a lifted state is provided on the presser bar driver 8.
In this embodiment, when the presser foot driver 8 is lifted upwards, the lifting portion 39 on the presser foot driver 8 abuts against the supported portion 37 at the lower end of the transmission member 36 and drives the supported portion 37 to rotate, and in the rotation process of the supported portion 37, the pushing portion 38 is synchronously driven to rotate and drive the clutch structure 32 on the needle bar driver 31 to rotate circumferentially along the axial direction of the guide bar 30, so as to complete the separation between the needle bar driver 31 and the needle bar 5, the transmission member 36 is V-shaped, and when the lifting portion 39 is lifted upwards, the pushing portion 38 can rotate towards one end close to the needle bar driver 31.
As shown in fig. 2, the push-up part 39 is arranged on the presser foot driver 8 and extends transversely, and the push-up part 39 is connected with the presser foot driver 8 into a whole; the supporting part 37 is fixed at the lower end of the transmission piece 36 through a pin 40 extending transversely, and the supporting part 37 extends forwards; the pushing part 39 is positioned above the supported part 37, and the vertical projections of the pushing part and the supported part are mutually intersected; the pushing portion 38 is cylindrical and extends laterally to the front side of the needle bar driver 31.
In this embodiment, the pushing portion 39 is disposed on the presser foot driver 8 and extends transversely, the supported portion 37 extends forward, the pushing portion 39 is disposed above the supported portion 37 and the vertical projections of the pushing portion and the supported portion are mutually intersected, this arrangement ensures that the pushing portion 39 is always in contact with the supported portion 37 in the lifting process and drives the supported portion 37 to rotate, and in the rotating process of the supported portion 37, the pushing portion 38 can be synchronously driven to rotate toward one end close to the needle bar driver 31, and the pushing portion 38 is cylindrical and extends transversely to the front side of the needle bar driver 31, so that the pushing portion 38 is always in contact with the needle bar driver 31 in the rotating process.
As shown in fig. 1 and 2, the driving member 36 is disposed on the machine head 35 through a rotating shaft 41, a return torsion spring 42 is sleeved on the rotating shaft 41, and the return torsion spring 42 acts on the driving member 36 and the machine head 35 respectively.
In this embodiment, the transmission member 36 is disposed on the machine head 35 through the rotation shaft 41, so that the transmission member 36 can rotate along the axial direction of the rotation shaft 41, the rotation shaft 41 is sleeved with the return torsion spring 42, and after the pushing and lifting portion 39 descends, the transmission member 36 can automatically rotate to the initial position under the torsion action of the return torsion spring 42, without manual reset.
As shown in fig. 1 and 3, the needle bar driver 31 includes a lifting slide 1 sleeved on the guide bar 30, the lifting slide 1 and the driving clutch 4 axially positioned and circumferentially rotatably connected with the lifting slide 1 are provided, the clutch structure 32 which can be separated from the needle bar 5 after the driving clutch 4 circumferentially rotates is arranged between the driving clutch 4 and the needle bar 5, a circumferentially rotating return spring 7 which can return the circumferentially rotated driving clutch 4 to return the needle bar driver 31 to be connected with the needle bar 5 again is arranged between the lifting slide 1 and the driving clutch 4, a presser foot linkage part 9 axially extending along the driving clutch 4 is arranged on the driving clutch 4, and the pushing part 38 is in sliding contact or rolling contact with the presser foot linkage part 9.
In this embodiment, the reset spring 7 is capable of playing an automatic reset role when the clutch member 4 is required to be restored to an initial state after being driven to rotate, the lifting slide 1 is used for fixing the clutch member 4, the lifting slide 1 can drive the clutch member 4 to axially reciprocate along the guide rod 30, when the lifting slide 1 axially moves, the clutch structure 32 and the needle rod 5 are in a connection state, the clutch member 4 is driven to drive the needle rod 5 to fall, when the lock is required to be not operated, the presser foot driver 8 is lifted, the presser foot linkage part 9 and the clutch member 4 are driven to circumferentially rotate through the pushing part 38, the needle rod 5 is separated from the clutch structure 32, the lifting slide 1 and the clutch member 4 still reciprocate in the axial direction to perform linear motion, the needle rod 5 is not needled any more, the presser foot is prevented from being impacted by the high-speed needle rod, mechanical parts are damaged, locking of the needle rod driver is achieved, the locking is simple and convenient, when the needle falling is required, the clutch structure 32 is rotated to the initial position, the needle rod 5 is enabled to be connected with the clutch structure 32 again, the needle rod is driven to fall continuously, the needle rod is enabled to be driven to be separated from the connection, and the needle rod is switched easily, and the practicality is high.
As shown in fig. 3 and 4, the presser foot linkage part 9 is columnar and is arranged at one side of the driving clutch 4, and two ends of the presser foot linkage part 9 respectively exceed the end part of the driving clutch 4; the driving clutch piece 4 is also provided with a lock motor pushing part 13, the lock motor pushing part 13 is columnar and arranged on the other side of the driving clutch piece 4, and two ends of the lock motor pushing part 13 respectively exceed the end parts of the driving clutch piece 4. The outside of the lock motor pushing part 13 is provided with a lock motor 53 and a lock transmission mechanism 52 connected with the lock motor 53, and the lock transmission mechanism acts on the driving clutch piece 4 to realize the clutch control of the needle bar driver 31 and the needle bar 5. Namely, the electric control of the lock motor 53 and the mechanical control of the linkage clutch control structure 33 taking the presser foot driver 8 as power can realize the clutch control of the needle bar driver 31 and the needle bar 5, thereby further improving the control stability and the use flexibility.
In the embodiment, the presser foot linkage part 9 is columnar, so that the presser foot linkage part is convenient to be in abutting fit with the pushing part 38, and two ends of the presser foot linkage part 9 respectively exceed the end parts of the driving clutch 4, so that the pushing part 38 and the linkage part 9 are ensured to keep a linkage state when swinging; both ends of the lock motor pushing part 13 respectively exceed the end parts of the driving clutch piece 4, so that the lock motor 53 can be always kept in a linkage state with the lock motor pushing part 13.
As shown in fig. 3, a rotation limiting structure 10 is disposed between the lifting slide 1 and the driving clutch member 4, the limiting direction of the rotation limiting structure 10 is opposite to the circumferential rotation direction of the driving clutch member 4, the rotation limiting structure 10 includes a limiting body 11 fixed on the lifting slide 1 and a limiting surface 12 disposed on the driving clutch member 4, the limiting body 11 and the limiting surface 12 abut against each other under the action of the circumferential rotation return spring 7, and when the limiting body 11 and the limiting surface 12 abut against each other, the clutch structure 32 is in a state that the needle bar driver 31 is connected with the needle bar 5.
In this embodiment, when the clutch structure 32 rotates to the state where the needle rod 5 is connected, the limiting surface 12 on the driving clutch member 4 is in abutting engagement with the limiting body 11, so that the driving clutch member 4 can not rotate in a direction opposite to the circumferential rotation direction of the driving clutch member 4, limiting of the driving clutch member 4 is achieved, and the clutch structure 32 and the needle rod 5 are tightly connected in the connected state.
As shown in fig. 1 and 3, the driving clutch 4 is made of plastic; the circumferential rotation reset spring 7 comprises a torsion spring, one foot of the torsion spring is connected with the lifting slide seat 1, and the other foot of the torsion spring is connected with the driving clutch piece 4; the clutch structure 32 comprises a bayonet 21 arranged on the driving clutch member 4 and a clamping head 43 arranged on the needle bar 5, wherein the bayonet 21 transversely extends and two ends of the bayonet are communicated, and the clamping head 43 can be clamped into or separated from the bayonet 21 when the driving clutch member 4 circumferentially rotates.
In this embodiment, the driving clutch member 4 is made of plastic, so as to reduce the impact noise generated during pushing and abutting, reduce noise and maintenance cost, and the torsion spring can drive the driving clutch member 4 to rotate circumferentially to the initial position, the bayonet 21 is used for inserting the chuck 43 on the fixed needle rod 5, and then the needle rod 5 is connected, and after the driving clutch member 4 rotates, the chuck 43 on the needle rod 5 can be separated from the chuck 21, so as to complete the separation of the needle rod.
The working principle of the invention is as follows:
the presser foot driver 8 and the needle bar driver 31 can do reciprocating rectilinear motion along the axial direction of the guide rod 30, the clutch structure 32 can be driven to do circumferential rotation along the axial direction of the guide rod 30 through the linkage clutch control structure 33, then the connection or disconnection state between the needle bar driver 31 and the needle bar 5 is switched through the rotation of the clutch structure 32, when a lock is required to be not operated, the presser foot driver 8 is lifted upwards, a lifting part 39 on the presser foot driver 8 is abutted with a bearing part 37 at the lower end of a transmission piece 36 and drives the bearing part 37 to rotate, the pushing part 38 is synchronously driven to rotate in the rotation process of the bearing part 37 and drives the clutch structure 32 on the needle bar driver 31 to do circumferential rotation along the axial direction of the guide rod 30, the disconnection between the needle bar driver 31 and the needle bar 5 is completed, the transmission piece 36 is in a V shape, when the pushing part 38 is enabled to rotate towards one end close to the needle bar driver 31, a clamping head 43 on the needle bar 5 is enabled to be disconnected from 21, the needle bar is completed to be disconnected from the needle bar, the needle bar 5 is not dropped down again, the needle bar is prevented from being connected to the needle bar 5 again through the high-speed, the needle bar driver is prevented from being connected to the needle bar 5 again, and the needle bar is required to be driven to be disconnected to the needle bar 5 through the needle bar 5.
The torsion spring can drive the clutch 4 to rotate to the initial position after circumferential rotation.
When the clutch structure 32 rotates to the connection state of the needle rod 5, the limiting surface 12 on the driving clutch piece 4 is in abutting fit with the limiting body 11, so that the driving clutch piece 4 can not excessively rotate in the direction opposite to the circumferential rotation direction of the driving clutch piece 4, limiting of the driving clutch piece 4 is realized, and the clutch structure 32 and the needle rod 5 are tightly connected in the connection state.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention.
Although the terms of the lifting slide 1, the needle bar 5, the circumferential rotation return spring 7, the presser foot driver 8, the presser foot linkage 9, the rotation limiting structure 10, the limiting body 11, the limiting surface 12, the lock motor pushing portion 13, the bayonet 21, the guide bar 30, the needle bar driver 31, the clutch structure 32, the linkage clutch control structure 33, the transmission mechanism 34, the head 35, the transmission member 36, the supported portion 37, the pushing portion 38, the lifting portion 39, the pin 40, the rotation shaft 41, the return torsion spring 42, the chuck 43, the lock transmission mechanism 52, the lock motor 53, and the like are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (4)
1. The needle bar driving clutch mechanism comprises a guide bar (30) which is vertically and fixedly arranged, a presser foot driver (8) and a needle bar driver (31) are axially and movably arranged on the guide bar (30), the needle bar driver (31) and the presser foot driver (8) are arranged at intervals in the vertical direction, the needle bar driver (31) and the needle bar (5) are connected through a clutch structure (32), the clutch mechanism is characterized in that a linkage type clutch control structure (33) which is provided between the presser foot driver (8) and the needle bar driver (31) and is powered by the presser foot driver (8) to control the clutch structure (32) to act is arranged between the presser foot driver (8) and the needle bar driver (31), the linkage type clutch control structure (33) is positioned above the presser foot driver (8), the clutch structure (32) is controlled to act when the presser foot driver (8) is in a lifting state, so that the needle bar driver (31) and the needle bar (5) are mutually connected, and after the presser foot driver (8) descends, the linkage type clutch control structure (33) is arranged on one side of the guide bar driver (31) and the needle bar driver (30), the power input end of the transmission mechanism (34) is connected with the presser foot driver (8) in a lifting state, the power output end of the transmission mechanism (34) acts on the needle bar driver (31), the transmission mechanism (34) comprises a transmission piece (36) with the middle part rotatably connected with the machine head (35), the transmission piece (36) is of a V shape, the lower end of the transmission piece (36) is provided with a supporting part (37), the upper end of the transmission piece (36) is provided with a pushing part (38) acting on the needle bar driver (31), the presser foot driver (8) is provided with a pushing part (39) for lifting the supporting part (37) when the presser foot driver (8) is in the lifting state, the pushing part (39) is arranged on the presser foot driver (8) and transversely extends, and the pushing part (39) is connected with the presser foot driver (8) into a whole; the supporting part (37) is fixed at the lower end of the transmission piece (36) through a pin (40) extending transversely, and the supporting part (37) extends forwards; the pushing part (39) is positioned above the supported part (37) and the vertical projections of the pushing part and the supported part are mutually intersected; the pushing part (38) is cylindrical and transversely extends to the front side of the needle bar driver (31), the needle bar driver (31) comprises a lifting sliding seat (1) sleeved on the guide rod (30), the lifting sliding seat (1) is provided with a driving clutch piece (4) which is axially positioned and circumferentially rotatably connected with the lifting sliding seat, a clutch structure (32) which can be separated from the needle bar (5) after the driving clutch piece (4) circumferentially rotates is arranged between the driving clutch piece (4) and the needle bar (5), a circumferential rotation reset spring (7) which can reset the driving clutch piece (4) after the circumferential rotation is arranged between the lifting sliding seat (1) and the driving clutch piece (4) so as to enable the needle bar driver (31) to be connected with the needle bar (5) again, the driving clutch piece (4) is provided with a presser foot linkage part (9) which axially extends along the driving clutch piece (4), and the pushing part (38) is in sliding contact or rolling contact with the presser foot linkage part (9);
the transmission piece (36) is arranged on the machine head (35) through a rotating shaft (41), a return torsion spring (42) is sleeved on the rotating shaft (41), and the return torsion spring (42) acts on the transmission piece (36) and the machine head (35) respectively.
2. The needle bar driving clutch mechanism according to claim 1, wherein the presser foot linkage part (9) is columnar and arranged at one side of the driving clutch member (4), and two ends of the presser foot linkage part (9) respectively exceed the end parts of the driving clutch member (4); the driving clutch piece (4) is also provided with a tapered end motor pushing part (13), the tapered end motor pushing part (13) is columnar and is arranged on the other side of the driving clutch piece (4), and two ends of the tapered end motor pushing part (13) respectively exceed the end parts of the driving clutch piece (4).
3. Needle bar driving clutch mechanism according to claim 1 or 2, characterized in that a rotation limit structure (10) is arranged between the lifting slide seat (1) and the driving clutch piece (4), the limit direction of the rotation limit structure (10) is opposite to the circumferential rotation direction of the driving clutch piece (4), the rotation limit structure (10) comprises a limit body (11) fixed on the lifting slide seat (1) and a limit surface (12) arranged on the driving clutch piece (4), the limit body (11) and the limit surface (12) are mutually abutted under the action of a circumferential rotation return spring (7), and when the limit body (11) and the limit surface (12) are mutually abutted, the clutch structure (32) is in a state that a needle bar driver (31) is connected with a needle bar (5).
4. Needle bar drive clutch mechanism according to claim 1 or 2, characterized in that the drive clutch member (4) is made of plastic; the circumferential rotation reset spring (7) comprises a torsion spring, one foot of the torsion spring is connected with the lifting slide seat (1), and the other foot of the torsion spring is connected with the driving clutch piece (4); the clutch structure (32) comprises a bayonet (21) arranged on the driving clutch piece (4) and a clamping head (43) arranged on the needle rod (5), wherein the bayonet (21) transversely extends and is communicated at two ends, and the clamping head (43) can be clamped into or separated from the bayonet (21) when the driving clutch piece (4) circumferentially rotates.
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| CN202011105320.5A CN112430919B (en) | 2020-10-15 | 2020-10-15 | Needle bar driving clutch mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011105320.5A CN112430919B (en) | 2020-10-15 | 2020-10-15 | Needle bar driving clutch mechanism |
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| CN112430919A CN112430919A (en) | 2021-03-02 |
| CN112430919B true CN112430919B (en) | 2024-01-30 |
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| CN202011105320.5A Active CN112430919B (en) | 2020-10-15 | 2020-10-15 | Needle bar driving clutch mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115387040B (en) * | 2022-08-29 | 2023-09-22 | 瑞珂玛机电(惠州)有限公司 | Homologous driving device for needle bar driving clutch mechanism and thread hooking mechanism of embroidery machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289994A (en) * | 1990-02-09 | 1991-12-19 | Tokai Ind Sewing Mach Co Ltd | Sewing machine |
| CN201933289U (en) * | 2010-12-29 | 2011-08-17 | 东莞市艺博达实业有限公司 | Needle bar driving mechanism of rotating shuttle machine for quilting and embroidering |
| CN206015271U (en) * | 2016-06-19 | 2017-03-15 | 湖州冠炯机电科技有限公司 | Shank separating mechanism |
| CN106757881A (en) * | 2017-03-06 | 2017-05-31 | 浙江镨美科智能刺绣设备有限公司 | For the presser foot driving device of machine head of embroidery machine |
| CN206799933U (en) * | 2017-04-26 | 2017-12-26 | 诸暨元实机械有限公司 | Embroidery machine having needle stem and presser foot driving device |
| CN214060897U (en) * | 2020-10-15 | 2021-08-27 | 诸暨玛雅电器机械有限公司 | Needle bar driving clutch mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8468961B2 (en) * | 2011-02-11 | 2013-06-25 | Zeng Hsing Industrial Co., Ltd. | Clutch device for a needle bar of a sewing machine |
-
2020
- 2020-10-15 CN CN202011105320.5A patent/CN112430919B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289994A (en) * | 1990-02-09 | 1991-12-19 | Tokai Ind Sewing Mach Co Ltd | Sewing machine |
| CN201933289U (en) * | 2010-12-29 | 2011-08-17 | 东莞市艺博达实业有限公司 | Needle bar driving mechanism of rotating shuttle machine for quilting and embroidering |
| CN206015271U (en) * | 2016-06-19 | 2017-03-15 | 湖州冠炯机电科技有限公司 | Shank separating mechanism |
| CN106757881A (en) * | 2017-03-06 | 2017-05-31 | 浙江镨美科智能刺绣设备有限公司 | For the presser foot driving device of machine head of embroidery machine |
| CN206799933U (en) * | 2017-04-26 | 2017-12-26 | 诸暨元实机械有限公司 | Embroidery machine having needle stem and presser foot driving device |
| CN214060897U (en) * | 2020-10-15 | 2021-08-27 | 诸暨玛雅电器机械有限公司 | Needle bar driving clutch mechanism |
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