CN107881676B - Upper thread clamping mechanism and embroidery machine adopting same - Google Patents
Upper thread clamping mechanism and embroidery machine adopting same Download PDFInfo
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- CN107881676B CN107881676B CN201711374504.XA CN201711374504A CN107881676B CN 107881676 B CN107881676 B CN 107881676B CN 201711374504 A CN201711374504 A CN 201711374504A CN 107881676 B CN107881676 B CN 107881676B
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- thread
- needle bar
- thread clamping
- bar frame
- clamping piece
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/08—Thread-tensioning arrangements
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2209/00—Use of special materials
- D05D2209/08—Use of special materials elastic, e.g. rubber spring
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses an upper thread clamping mechanism and an embroidery machine adopting the same, and the upper thread clamping mechanism comprises an upper thread clamping seat and a plurality of twisting clamping and paying-off components arranged on the upper thread clamping seat, wherein each twisting clamping and paying-off component is provided with a thread clamping piece which can be twisted by a twisting angle to clamp or release a thread, the thread clamping piece comprises an upper end part of the thread clamping piece and a lower end part of the thread clamping piece, the lower end part of the thread clamping piece is arranged at the position below a bending part bent inwards at the outer side of a needle rod presser foot of a needle rod frame, and the upper end part of the thread clamping piece is arranged at the upper position of the inner side of the upper thread clamping seat; when the needle bar presser foot drops downwards and presses the lower end part of the thread clamping piece, the upper end part of the thread clamping piece is driven to twist towards the needle bar frame direction to release the threading; when the needle bar presser foot is lifted upwards, the upper end part of the thread clamping sheet is driven to twist towards the direction far away from the needle bar frame and clamp the thread. The structure is simple, the needle bar frame is not required to be provided with a row of thimble through holes, the needle bar frame is simple to process, the strength of the needle bar frame is improved, the needle bar frame is firm and has long service life, the processing cost is low, the control is simple, and the service life is long.
Description
Technical Field
The present invention relates to an upper thread holding mechanism, and more particularly to an upper thread holding mechanism used in embroidery apparatuses such as a computerized embroidery machine.
Background
The existing upper thread holding mechanism of the embroidery machine comprises an upper thread clamping seat 01, an upper thread clamping spring, a row of a plurality of upper thread clamping thimbles 02 (shown in figure 8) or a plurality of upper thread clamping ejector rods, an ejector pin compression spring and the like, when the upper thread clamping seat 01 is installed and positioned on a needle bar frame 04 (shown in figure 6) through an installation connecting block 03, a plurality of ejector pin through holes for the upper thread clamping thimbles 02 to pass through need to be formed on the needle bar frame, and corresponding electromagnets, electromagnet ejector rods and other control components are arranged at the front ends of the plurality of upper thread clamping thimbles 02 to be matched, so that the top-up and reset control of the plurality of upper thread clamping thimbles 02 can be effectively realized, and the wire clamping or paying off operation can be realized; however, because a row of multiple thimble through holes need to be formed in the needle bar frame, the processing complexity and the processing cost of the needle bar frame are undoubtedly increased, the overall strength and the firmness of the needle bar frame are reduced, and the service life of the needle bar frame is easily damaged and reduced; in addition, the existing upper thread holding mechanism can not work normally, and is matched with an electromagnet, an electromagnet ejector rod and other components to push a row of a plurality of upper thread clamping ejector pins 02, so that the problems of high control complexity, high electrical appliance fault damage rate and the like exist, and the problems of high overall fault rate of the embroidery machine, high maintenance complexity and the like are caused.
Disclosure of Invention
The invention aims to solve the problems that the existing upper thread holding mechanism has a complex structure, increases the processing complexity and the processing cost of a needle bar frame, reduces the overall strength and the firmness of the needle bar frame, is easy to damage and reduces the service life of the needle bar frame; the needle bar frame is simple in structure, a row of thimble through holes do not need to be formed in the needle bar frame, the integral strength and firmness of the needle bar frame can be effectively guaranteed, the service life of the needle bar frame is prolonged, the processing and manufacturing cost is reduced, and the control complexity is reduced; need not to use cooperation of electric control parts such as electro-magnet ejector pin, avoid because the fault rate that electro-magnet ejector pin trouble brought is high and maintain complicacy, improve whole life's facial line fixture and adopt the embroidery machine of this mechanism.
The invention adopts the following specific technical scheme for solving the technical problems: the utility model provides a facial line fixture, is including establishing the facial line grip slipper on the needle bar frame, its characterized in that: the upper end part of the thread clamping piece is arranged at the upper part of the inner side of the upper thread clamping seat and is used for clamping or releasing the thread; when the needle bar presser foot drops downwards, the outer bending part of the needle bar presser foot presses downwards to the lower end part of the thread clamping piece to drive the upper end part of the thread clamping piece to twist towards the direction of the needle bar frame so as to release the thread passing; when the needle bar presser foot is lifted upwards, the upper end part of the thread clamping sheet is twisted towards the direction far away from the needle bar frame and clamps the thread passing; the torsion clamp pay-off component comprises a thread clamping piece, a torsion spring, a torsion positioning seat and a torsion positioning rod, wherein the thread clamping piece and the torsion spring are arranged on the torsion positioning seat through the torsion positioning rod; and the two side edges of the upper end part of the thread clamping sheet are provided with thread passing limiting lips which are turned over towards one side far away from the needle bar frame. Improve line ball limiting displacement, prevent to cross the line and deviate or shift, effectively will cross the spacing at both sides and cross the spacing inslot that line spacing lip constitutes.
The structure is simple, the maintenance is convenient, and the reliable effectiveness of positioning, twisting, clamping or paying-off of the wire twisting and clamping component is improved. The thread passing part is clamped or released by the plurality of twisting clamp paying-off parts, the mounting structure is simple, a row of thimble through holes do not need to be formed in the needle bar frame, only two ends of the upper thread clamping seat are required to be fixedly mounted on the needle bar frame, the needle bar frame is simple to process, the overall strength and firmness of the needle bar frame can be effectively guaranteed, the service life of the needle bar frame is prolonged, the processing and manufacturing costs of the needle bar frame and the upper thread clamping seat are reduced, and the control complexity is reduced; electric control components such as the electromagnet ejector rod and the like are not required to be matched, so that high failure rate and complex maintenance caused by the failure of the electromagnet ejector rod are avoided, and the overall service life is prolonged; the installation and maintenance are convenient and simple, the product interchangeability is high, and the working stability is high.
Preferably, the wire clamping piece is an L-shaped wire clamping piece with an included angle of more than 90 degrees between the upper end part of the wire clamping piece and the lower end part of the wire clamping piece, a torsion positioning part is arranged at the upper end part of the wire clamping piece, and a torsion positioning hole for installing a torsion positioning rod is formed in the torsion positioning part. The reliability and effectiveness of twisting and clamping or paying off driven by the lifting motion of the needle rod presser foot on the thread clamping sheet are improved.
Preferably, the upper end of the thread clamping piece is provided with an upper turning lip which is turned towards the needle bar frame. The smoothness of wire clamping or wire releasing of the wire passing is improved, the abrasion damage of the wire passing body is reduced, and the use safety and reliability are improved.
Preferably, the included angle range of the obtuse angle of the wire clamping piece is 90-150 degrees. The reliability and effectiveness of twisting and clamping or paying off driven by the lifting motion of the needle rod presser foot on the thread clamping sheet are improved.
Preferably, the lower end of the thread clamping piece is provided with a lower turnover lip which is turned over in the direction away from the needle bar frame. The flexible and smooth contact of the needle bar presser foot on the thread clamping piece driven by the lifting motion of the needle bar presser foot and the thread clamping piece driven by the needle bar presser foot is improved, and the reliable effectiveness of twisting thread clamping or paying off is improved.
Preferably, the facial line grip slipper be equipped with protruding contact base keeping away from the distolateral department on the inner wall of needle bar frame one side, press from both sides on the line upper end and contact the base with the arch and contact and clip the line or loose and put the line, be equipped with the locating hole groove on the protruding contact base, the locating hole inslot is equipped with cylindric billet, the outer face of cylinder billet exposes in locating hole groove outer notch department and towards the needle bar frame direction, press from both sides on the line upper end and the contact of the outer face of cylinder billet is carried the line or is released the line. The clamping firmness and reliability of the passing wire are improved, the abrasion resistance is improved, the service life is prolonged, and the clamping effectiveness is improved; the phenomenon that the thread clamping is difficult to clamp or unstable due to abrasion of the thread clamping contact position is prevented.
Preferably, the needle thread holding seat comprises a first side wall close to the side of the needle bar frame and a second side wall far away from the side of the needle bar frame, wherein the bottom end of the side wall of the second side wall is lower than the bottom end of the side wall of the first side wall, and the bottom end of the side wall of the first side wall is arranged at a position above the lower end of the thread clamping piece. The shielding protection effect of the whole product on the thread clamping piece is improved, the integral neatness of the product is improved, the material cost of the first side wall 13 can be saved, the influence of the twisting space of the thread clamping piece can be avoided, and the flexibility and convenience of the twisting of the thread clamping piece are improved.
Another object of the present invention is to provide an embroidery machine, comprising: the twisting and thread-releasing clamping component in the upper thread clamping mechanism adopting one of the technical schemes.
The invention has the beneficial effects that: the thread passing part is clamped or released by the plurality of twisting clamp paying-off parts, the mounting structure is simple, only two ends of the upper thread clamping seat are required to be fixedly mounted on the needle bar frame, a row of thimble through holes do not need to be formed in the needle bar frame, the needle bar frame is simple to process, the overall strength and firmness of the needle bar frame can be effectively guaranteed, the service life of the needle bar frame is prolonged, the processing and manufacturing cost of the needle bar frame and the upper thread clamping seat is reduced, and the control complexity is reduced; electric control parts such as an electromagnet ejector rod and the like are not required to be matched, so that high failure rate and complex maintenance caused by the failure of the electromagnet ejector rod are avoided, and the overall service life is prolonged; the installation and maintenance are convenient and simple, the product interchangeability is high, and the working stability is high.
Description of the drawings:
the invention is described in further detail below with reference to the figures and the detailed description.
FIG. 1 is a schematic view showing a structure of an upper thread holding mechanism of the present invention.
Fig. 2 is a schematic perspective view of the upper thread holding means of the present invention.
Fig. 3 is a schematic view of a three-dimensional observation structure of the needle thread holding mechanism of the present invention viewed from another observation direction.
Fig. 4 is a schematic view showing the structure of the thread tension piece in the upper thread holding mechanism of the present invention.
Fig. 5 is a schematic view showing a partial explosion structure of the needle thread holding mechanism of the present invention.
FIG. 6 is a schematic view showing the effect of the needle thread holding mechanism of the present invention when it is mounted on the needle bar holder.
Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.
FIG. 8 is a schematic view showing a structure of a needle thread holding mechanism in the prior art.
Detailed Description
In the embodiment shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, an upper thread clamping mechanism comprises an upper thread clamping seat 10 mounted on a needle bar frame, wherein two ends of the upper thread clamping seat 10 in the length direction are connected with mounting lug seats 11 mounted on the needle bar frame, the mounting lug seats 11 are provided with fastening mounting holes, when the upper thread clamping seat is mounted, the mounting lug seats 11 at two ends of the upper thread clamping seat are fixedly mounted on the needle bar frame, the mounting and maintenance are more convenient and simpler, the upper thread clamping mechanism further comprises a plurality of twisting clamp wire releasing components mounted on the upper thread clamping seat 10, each twisting clamp wire releasing component is provided with a wire clamping sheet 20 capable of clamping or releasing a wire on the upper thread clamping seat 10 through a twisting angle, the wire clamping sheet 20 comprises an upper end 21 part of the wire clamping sheet and a lower end 22, the lower end part 22 of the wire clamping sheet is mounted at a position below an outer bending part bent inward bending part of a needle bar 05 of the needle bar frame 04 (see fig. 6, 7), and the upper end part of the wire clamping seat 10 passes through an upper end arrow B of the wire clamping seat and is clamped or released downwards from the upper end of the wire clamping seat 10, and then the upper end of the wire clamping sheet is released downwards from the wire clamping seat 10; when the needle bar presser foot 05 drops downwards, the outer bending part 051 of the needle bar presser foot 05 presses downwards to the lower end part 22 of the thread clamping piece to drive the thread clamping piece 20 to twist around the twisting positioning rod 40 on the twisting positioning seat 19, and further drive the upper end part 21 of the thread clamping piece to twist towards the direction of the needle bar frame 04 to release thread passing; when the needle bar presser foot 05 is lifted upwards, under the restoring acting force of the twisting thread clamping and releasing component, the upper end part 21 of the thread clamping sheet is driven to twist in the direction away from the needle bar frame 04 and press towards the inner side of the upper thread clamping seat so as to clamp a thread, and the needle bar 06 provided with an embroidery needle can move up and down on the needle bar presser foot 05. Each twisting and clamping and releasing component correspondingly manages the clamping or releasing of 1 embroidery thread, each twisting and clamping and releasing component comprises a thread clamping piece 20, a torsion spring 30, a twisting positioning seat 19 and a twisting positioning rod 40, the thread clamping piece 20 and the torsion spring 30 are installed on the twisting positioning seat 19 through the twisting positioning rod 40, the twisting positioning seat 19 is provided with a twisting positioning hole 191, one end of the torsion spring 30 is installed at the inner side of the upper end part 21 of the thread clamping piece, namely, at the position facing one side of the needle bar frame, the other end of the torsion spring 30 is installed at the inner side wall of the upper thread clamping seat 10, and the twisting positioning seat 19 is fixedly connected to the inner side wall of the upper thread clamping seat 10 close to one side of the needle bar frame. Each torsion clamp wire releasing part comprises a wire clamping sheet 20 and a torsion spring 30; the wire clamping sheet 20 is an obtuse L-shaped wire clamping sheet with an included angle of more than 90 degrees between an upper end portion 21 of the wire clamping sheet and a lower end portion 22 of the wire clamping sheet, the upper end portion 21 of the wire clamping sheet is connected with a torsion positioning piece 26, the torsion positioning piece 26 is provided with a torsion positioning hole 27 (shown in figure 4) for installing a torsion positioning rod 40, the torsion positioning piece 26 can adopt two torsion positioning sheet structures with inner ends connected to the outer end heads of the two side edges of the upper end portion 21 of the wire clamping sheet in an arc shape, the torsion positioning sheet structures are provided with torsion positioning holes 27, and the torsion positioning rod 40 and the torsion positioning seat 19 are installed and connected together in a torsion mode on the torsion positioning holes 27; or a single column-shaped torsion positioning column structure connected to the upper end part 21 of the wire clamping sheet can be adopted, and a torsion positioning hole is formed in the column-shaped torsion positioning column structure. The upper end of the upper end 21 of the thread clamping sheet is connected with an upward turning lip 23 which turns towards the needle bar frame 04 in an extending way. The included angle range of the obtuse angles of the wire clamping pieces 20 is 90-150 degrees, the included angles such as 95 degrees, 120 degrees, 130 degrees, 135 degrees, 140 degrees or 150 degrees can be selected according to actual conditions, the use is flexible, the installation is convenient, and the twisting, clamping and releasing of the wires are effectively guaranteed. The lower end part 22 of the thread clamping piece is connected with a lower turnover lip 24 which is turned over in the direction far away from the needle bar frame 04 in an extending way at the lower end, the upper end of the lower turnover lip 24 is provided with an arc-shaped transition surface 25, the flexibility and smoothness of contact or separation between the lower turnover lip 24 and the needle bar presser foot 05 are improved, and meanwhile, the integral strength and the use reliability of the lower end part 22 of the thread clamping piece are also improved. The upper end part 21 of the thread clamping sheet, the upper turning lip 23, the lower end part 22 of the thread clamping sheet, the lower turning lip 24 and the torsion positioning sheet 26 are of an integral structure of the thread clamping sheet 20. The installation and maintenance convenience and the quality stability are improved. The upper thread grip slipper 10 is equipped with protruding contact 18 keeping away from the inboard wall upper end side department of needle bar frame 04 one side, the upper end 21 of clip thread contacts with protruding contact base 18 and clamps the line or loosely releases the line, it has location hole groove 16 to open on protruding contact base 18, the interior cylindric billet 17 of installation of location hole groove, the outer face of cylinder of cylindric billet 17 exposes slot department and towards needle bar frame 04 direction outside the location hole groove 16, it has partial outer face of cylinder to expose in the outside position department of the side end face of protruding contact base 18 also to be known as cylindric billet 17, the absolute most installation location of cylindric billet 17 is inside location hole groove 16, after the cylindric billet 17 of installation, the contact of the outer face of cylinder of twisted upper end 21 of clip thread and cylindric billet 17 is carried the line or is released the line, cylindric billet 17 wearability is high, use cylindrical billet 40 to improve and carry firm reliability to the line, improve wearability, improve service life, improve and carry the validity, improve. The upper thread clamping seat 10 comprises a first side wall 13 close to the side of the needle bar frame 04 and a second side wall 15 far away from the side of the needle bar frame, wherein the height of a second side wall bottom end 151 of the second side wall 15 is lower than that of a first side wall bottom end 131 of the first side wall 13, the overall shielding protection effect of a product on a thread clamping piece is improved, the overall neatness of the product is improved, meanwhile, the material cost of the first side wall 13 can be saved, meanwhile, the influence of the twisting space of the thread clamping piece can be avoided, the flexible convenience of the twisting of the thread clamping piece is improved, and the first side wall bottom end 131 of the first side wall 13 is arranged at a position above a lower end 22 of the thread clamping piece. The two side edges of the upper end portion 21 of the thread clamping piece extend and are connected with thread passing limiting lips 50, the thread passing limiting lips 50 are folded towards one side far away from the needle bar frame, and the thread passing limiting lips 50 and the thread clamping piece 20 are of an integrated structure. The wire clamping sheet 20 has a certain width dimension as a whole, particularly the wire clamping sheet at the wire clamping position has a certain width dimension which is suitable for effectively pressing the passing wire without influencing the normal twisting work of the adjacent wire pressing sheets; the first side wall 13, the second side wall 15, the upper end top wall 12 and the protruding contact base 18 of the upper thread holder 10 are integrally formed, so that the overall structural strength and the simple structure of the upper thread holder 10 are improved, and the effectiveness of convenience and convenience in maintenance is improved. The whole upper thread holder 10 can be integrally formed by selecting various material structures according to actual conditions,
example 2
An embroidery machine using a twisting clamp thread releasing member in the upper thread holding mechanism described in embodiment 1.
Example 3
A thread clamping and releasing method of an upper thread clamping mechanism comprises the following steps:
when the needle bar presser foot 05 moves downwards in a pressure drop mode, the outer bending part 051 of the needle bar presser foot 05 presses downwards to the lower end part 22 of the thread clamping sheet to drive the upper end part 21 of the thread clamping sheet to twist towards the direction of the needle bar frame 04 so as to release the thread passing to lead the thread passing to be downward in a thread releasing step;
when the needle rod presser foot 05 is lifted upwards, the thread clamping sheet 20 drives the upper end part 21 of the thread clamping sheet to twist towards the direction far away from the needle rod frame 04 and press towards the inner side of the upper thread clamping seat 10 to clamp the thread under the torsion recovery action of the torsion spring 30.
When the convex contact seat 18 and the cylindrical steel bar 17 are installed, the wire clamping piece 20 drives the upper end part 21 of the wire clamping piece to twist towards the direction far away from the needle bar frame 04 and press towards the outer cylindrical surface of the cylindrical steel bar 17 to clamp the passing wire under the torsion recovery action of the torsion spring 30.
Before paying off or clamping the embroidery thread, the threading step of threading the embroidery thread or threading the embroidery thread downwards from the threading hole 14 at the upper end top wall 12 of the upper end holding seat 10 to pass through the upper end top wall 12 of the upper end holding seat 10 downwards (in the direction shown by the arrow B in the figures 6 and 7) and then downwards to pass through the thread clamping sheet 20 to continue to insert the embroidery needle downwards is further included.
When the needle bar clamping mechanism is installed and used, two ends of a needle thread clamping seat of the needle thread clamping mechanism provided with a plurality of twisting thread clamping components are only required to be installed and fixed on frame bodies on two sides of a needle bar frame, and the lower end parts of thread clamping pieces of the twisting thread clamping components are pressed downwards or loosened upwards by utilizing the lifting motion of the bending parts of needle bar presser feet on the needle bar frame so as to drive the twisting of the upper end parts of the thread clamping pieces to clamp or release thread passing; the needle bar frame is simple and convenient to install, disassemble and maintain, low in installation and positioning precision requirements, low in precision requirements on the needle bar frame, small in damage, and free of the problems of precision, firmness and the like when multiple thimbles are installed and penetrate through the needle bar frame.
The present invention is not limited to the above-described specific embodiments, and may have other structural embodiments, for example:
the thread clamping sheet can also be slightly deformed on the basis of an L-shaped obtuse angle which is greater than 90 degrees in an integral structure, and the thread clamping sheet only can meet the effect of twisting the thread clamping or releasing the thread passing by matching with the lifting motion of the needle bar presser foot, and belongs to the protection scope of the invention.
In the description of the positional relationship of the present invention, the appearance of the terms such as "inner", "outer", "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the relationship of the inside and outside up and down directions or positional relationship with respect to the needle bar holder according to the mounting of the needle thread holding mechanism on the needle bar holder is merely for convenience of describing the embodiments and simplifying the description, and does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The foregoing summary and the following detailed description of the invention provide examples of the basic principles, features, and advantages of the invention, as will be apparent to those skilled in the art. The foregoing examples and description have been presented to illustrate the principles of the invention and are intended to provide various changes and modifications within the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a facial line fixture, is including establishing the facial line grip slipper on the needle bar frame, its characterized in that: the upper end part of the thread clamping piece is arranged at the upper part of the inner side of the upper thread clamping seat and is used for clamping or releasing the thread; when the needle bar presser foot drops downwards, the outer bending part of the needle bar presser foot presses downwards to the lower end part of the thread clamping piece to drive the upper end part of the thread clamping piece to twist towards the direction of the needle bar frame so as to release the thread passing; when the needle bar presser foot is lifted upwards, the upper end part of the thread clamping sheet is twisted towards the direction far away from the needle bar frame and pressed towards the inner side of the upper thread clamping seat to clamp the thread; the twisting and clamping pay-off component comprises a wire clamping piece, a torsion spring, a twisting positioning seat and a twisting positioning rod, the wire clamping piece and the torsion spring are arranged on the twisting positioning seat through the twisting positioning rod, one end of the torsion spring is arranged at the inner side of the upper end part of the wire clamping piece, the other end of the torsion spring is arranged at the inner side wall of the upper thread clamping seat, and the twisting positioning seat is arranged on the inner side wall of the upper thread clamping seat close to one side of the needle bar frame; and the two side edges of the upper end part of the thread clamping sheet are provided with thread passing limiting lips which are turned over towards one side far away from the needle bar frame.
2. The needle thread holding mechanism as set forth in claim 1, wherein: the wire clamping piece adopts an obtuse L-shaped wire clamping piece with an included angle of more than 90 degrees between the upper end part of the wire clamping piece and the lower end part of the wire clamping piece, a torsion positioning part is arranged at the upper end part of the wire clamping piece, and a torsion positioning hole for installing a torsion positioning rod is formed in the torsion positioning part.
3. The needle thread holding mechanism according to claim 1 or 2, wherein: the upper end of the thread clamping sheet is provided with an upward turning lip which turns towards the needle bar frame.
4. The needle thread holding mechanism as set forth in claim 2, wherein: the included angle range of the obtuse angle of the wire clamping sheet is 90-160 degrees.
5. The needle thread holding mechanism according to claim 1 or 2, wherein: the lower end of the thread clamping piece is provided with a lower turnover lip which is turned over in the direction away from the needle bar frame.
6. The needle thread holding mechanism as set forth in claim 1, wherein: the upper thread grip slipper be equipped with protruding contact base keeping away from the inboard wall upper end side department of needle bar frame one side, press from both sides the line upper end and contact the seat with protruding and contact and press from both sides the line or loose and put the line, be equipped with the locating hole groove on the protruding contact base, the locating hole inslot is equipped with cylindric billet, the outer face of cylinder of cylindric billet exposes in locating hole groove outer notch department and towards needle bar frame direction, press from both sides the line upper end and the contact of the outer face of cylinder billet is carried and is crossed line or pine and relieve the line.
7. The needle thread holding mechanism as set forth in claim 1, wherein: the upper thread clamping seat comprises a first side wall close to the side of the needle bar frame and a second side wall far away from the side of the needle bar frame, wherein the height of the bottom end of the side wall of the second side wall is lower than that of the bottom end of the side wall of the first side wall, and the bottom end of the side wall of the first side wall is arranged at the position above the lower end of the thread clamping piece.
8. An embroidery machine characterized in that: the twisting clamp thread-releasing member in the upper thread holding mechanism according to any one of claims 1 to 7 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374504.XA CN107881676B (en) | 2017-12-19 | 2017-12-19 | Upper thread clamping mechanism and embroidery machine adopting same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374504.XA CN107881676B (en) | 2017-12-19 | 2017-12-19 | Upper thread clamping mechanism and embroidery machine adopting same |
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| CN107881676A CN107881676A (en) | 2018-04-06 |
| CN107881676B true CN107881676B (en) | 2023-03-21 |
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| DE102020133016B3 (en) | 2020-12-10 | 2022-04-21 | Deutsche Institute Für Textil- Und Faserforschung Denkendorf | Method and device for attaching a functional element to a carrier |
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| JPH0738914B2 (en) * | 1989-06-27 | 1995-05-01 | ペガサスミシン製造株式会社 | Method and apparatus for cutting decorative thread of multi-needle sewing machine |
| JPH08243282A (en) * | 1995-03-14 | 1996-09-24 | Tokai Ind Sewing Mach Co Ltd | Drive device for multi-head type sewing machine |
| JP3464158B2 (en) * | 1998-12-02 | 2003-11-05 | ブラザー工業株式会社 | Multi-needle sewing machine |
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| CN101591843B (en) * | 2009-06-19 | 2011-11-09 | 杭州经纬电子机械制造股份有限公司 | Automatic thread clamping system of embroidering machine |
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| CN106567204A (en) * | 2015-10-08 | 2017-04-19 | 诸暨市乐业机电有限公司 | Thread locking device and embroidery machine including the same |
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