CN112695469B - Small-head-distance embroidery machine - Google Patents
Small-head-distance embroidery machine Download PDFInfo
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- CN112695469B CN112695469B CN202110042182.9A CN202110042182A CN112695469B CN 112695469 B CN112695469 B CN 112695469B CN 202110042182 A CN202110042182 A CN 202110042182A CN 112695469 B CN112695469 B CN 112695469B
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- thread
- fastening
- buckling
- embroidery machine
- driving mechanism
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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
- D05C11/18—Shuttles ; Shuttle holders; Shuttle driving arrangements
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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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Abstract
A small-head-distance embroidery machine belongs to the technical field of embroidery machines. The embroidery machine comprises a plurality of machine heads, a plurality of embroidery machine thread-buckling devices and a plurality of rotating shuttles arranged on the shuttle race; the thread-buckling device of the embroidery machine is characterized by comprising a thread-buckling piece with two thread-buckling forks and a thread-buckling driving mechanism; the thread buckling piece and the thread buckling driving mechanism are hung in front of the rotating shuttles below the needle plate and are arranged between two adjacent rotating shuttles; the two thread-fastening forks respectively correspond to the two adjacent rotating shuttles; the thread buckling driving mechanism drives the thread buckling piece to tilt from top to bottom to realize thread buckling, and drives the thread buckling piece to return from bottom to top to realize thread loosening. The invention has compact structure, can be convenient for manually and automatically replacing the bottom line and has high industrialization level.
Description
Technical Field
The invention belongs to the technical field of embroidery machines, and particularly relates to a small-head-distance embroidery machine.
Background
The existing embroidery machine structure comprises an embroidery machine head, a thread buckling device and a thread cutting device. Each rotating shuttle on the existing embroidery machine is provided with a thread-fastening device and a thread-cutting device independently, and each thread-fastening device is provided with a driver independently, so that the required installation space is larger. For the embroidery machine with large head distance, the installation space is relatively abundant, but for the embroidery machine with small head distance, the installation difficulty is higher, and the installation space for the thread fastening device is very limited. Even if it is possible to install, the problem of replacing the bobbin thread needs to be considered. Generally, the bobbin thread is replaced once in half an hour, when the bobbin thread is replaced, an operator or a manipulator is required to firstly translate the bobbin case outwards and downwards pull out from the rotating shuttle, and then the bobbin case is put back to the rotating shuttle according to the original direction after the bobbin thread is replaced. This replacement process requires the operator or robot operating space to be reserved, while also taking into account the interference problems that exist during the path replacement.
The utility model discloses a patent CN207958716U discloses an embroidery machine thread take-off device and embroidery machine to specifically disclose thread take-off device include movable mounting and be used for detaining the thread take-off piece, the rotation of rotating shuttle and install the drive pivot on the shuttle case, be connected with two at least thread take-off pieces in the drive pivot simultaneously, the drive pivot is connected with the connecting rod, the connecting rod is connected with first driver, the drive pivot drives two at least thread take-off piece functions simultaneously under first driver drive. The device connects a plurality of wire buckling pieces to a driving rotating shaft at the same time, and the driving rotating shaft is driven by a driver, so that the installation space can be saved to a certain extent. The thread buckling mode of the thread buckling device is that the thread buckling fork swing rod arranged on the side surface of the rotating shuttle swings to buckle the upper thread, and the thread buckling device inclines from bottom to top to realize thread buckling and then inclines from top to bottom to realize thread loosening. The thread take-up and release directions interfere somewhat with the bobbin thread replacement path. Even if the thread-fastening and thread-releasing directions are changed into linear translation on the same horizontal plane, the problem that the bobbin case cannot be taken out also exists. In addition, the driving rotating shaft of the thread buckling device is arranged in front of the shuttle race transversely and below the rotating shuttle, a vertically arranged fixed block is arranged between the thread buckling piece and the driving rotating shaft, the fixed block and the driving rotating shaft occupy a large amount of space, and the interference problem exists no matter manual operation or mechanical hand operation. Obviously, the thread buckling device cannot meet the requirement of frequent bottom thread replacement from the industrial application perspective, and the industrial applicability is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the small-head-distance embroidery machine which is compact in structure, convenient for replacing the bottom thread and high in industrial feasibility.
The invention is realized by the following technical scheme:
a small-head-distance embroidery machine comprises a plurality of machine heads, a plurality of embroidery machine thread-buckling devices and a plurality of rotating shuttles arranged on a shuttle race; each thread-buckling device of the embroidery machine comprises a thread-buckling piece with two thread-buckling forks and a thread-buckling driving mechanism; the thread buckling piece and the thread buckling driving mechanism are hung in front of the rotating shuttles below the needle plate and are arranged between two adjacent rotating shuttles; two thread buckling forks of each thread buckling device of the embroidery machine respectively correspond to two adjacent rotating shuttles; the thread buckling driving mechanism drives the thread buckling piece to move obliquely from top to bottom to realize thread buckling and moves back to realize thread loosening.
The invention adopts a plurality of embroidery machine thread-fastening devices for fastening threads by adjacent rotating shuttles, and each embroidery machine thread-fastening device is provided with a thread-fastening driving mechanism for driving a thread-fastening piece with two thread-fastening forks. The invention adopts fewer components to form the embroidery machine with the belt buckle function, the integral embroidery machine has compact structure, and the application of the embroidery machine with the head distance smaller than 60cm can be expanded.
The thread-fastening device of the embroidery machine is arranged right in front of the rotating shuttles and between two adjacent rotating shuttles in a hanging installation mode, so that the thread-fastening driving mechanism can drive the thread-fastening piece to obliquely move from top to bottom to realize thread fastening and return to move to realize thread loosening. The spatial arrangement solves the problem of spatial interference when the bobbin case is replaced, can be well matched with the bobbin case high-frequency replacement operation in the industrial process, and improves the working efficiency of the embroidery machine.
The motion of the driving wire buckling piece is the inclined motion, the motion is not limited to the inclined motion in the form of a straight line, and the motion can also be the inclined motion in the form of a circular arc (for example, the wire buckling is realized by the downward inclined motion from the upper end point of a circular arc track to the lower end point of the circular arc track, and the wire coiling is realized by the upward inclined motion from the lower end point of the circular arc track to the upper end point of the circular arc track).
The thread-fastening device of the embroidery machine can be integrally arranged right in front of the rotating shuttle, and the thread-fastening piece and the thread-fastening driving mechanism can also be separately arranged.
Preferably, the thread buckling piece and the thread buckling driving mechanism are arranged right in front of the rotating shuttle in a hanging mode through the same mounting part; or the thread buckling piece and the thread buckling driving mechanism are respectively hung and installed right in front of the rotating shuttle through an installation part.
Preferably, the installation part for installing the thread buckling piece is a thread buckling installation seat, a sliding groove is formed in the thread buckling installation seat, and the thread buckling driving mechanism drives the thread buckling piece to reciprocate along the sliding groove, so that thread buckling and thread loosening processes are achieved.
Preferably, the mounting part further comprises a connecting rod, one end of the connecting rod is connected with the bottom of the thread buckling piece, and the other end of the connecting rod is connected with a driving shaft of the thread buckling driving mechanism.
Preferably, the bottom of the wire buckling piece extends downwards to form a mounting connecting piece, and the mounting connecting piece is movably connected with one end of the connecting rod.
Preferably, the thread buckling piece comprises a thread buckling body, two thread buckling forks arranged on two sides of the front end of the thread buckling body, and two wing plates arranged on two sides of the rear end of the thread buckling body; two sliding grooves are formed in the two sides of the buckle wire mounting seat; the wing plates on the same side are in sliding fit with the sliding grooves, so that the thread buckling driving mechanism drives the thread buckling piece to reciprocate along the sliding grooves.
Preferably, the thread-buckling fork comprises a thread-buckling fork body and a thread-buckling connecting plate for connecting the thread-buckling fork body and the thread-buckling body; the buckle line fork body extends outwards and obliquely downwards from the connection part of the buckle line fork body and the buckle line connecting plate.
Preferably, the wing plate and the sliding groove are connected by a pin or a rolling element.
Preferably, the sliding groove comprises a horizontal groove section and a chute section, the chute section is positioned between the horizontal groove section and the thread-buckling fork, and the chute section inclines towards the thread-buckling movement direction of the thread-buckling piece.
Preferably, the bottom of the thread-fastening mounting seat and the bottom of the thread-fastening body are correspondingly provided with mounting holes, so that the thread-fastening piece is mounted on the embroidery machine through the thread-fastening mounting seat after the fastener passes through the mounting holes.
Preferably, the driver of the thread-fastening driving mechanism is mounted at the bottom of the thread-fastening mounting seat.
Preferably, the mounting part for mounting the wire buckling piece is a wire buckling mounting plate; the upper supporting point at the bottom of the wire buckling piece is connected with the wire buckling driving mechanism, and the lower supporting point at the bottom of the wire buckling piece is connected with the installation connecting piece arranged at the bottom of the wire buckling installation plate; the thread buckling driving mechanism drives the thread buckling piece to swing around the lower fulcrum to do reciprocating motion, and thread buckling and thread loosening processes are achieved.
Preferably, the mounting portion further comprises a connecting rod, one end of the connecting rod is connected with the upper pivot, and the other end of the connecting rod is connected with a driving shaft of the thread buckling driving mechanism.
Preferably, the thread-fastening piece comprises a thread-fastening body, two thread-fastening forks arranged on two sides of the front end of the thread-fastening body, and a thread-fastening connecting part arranged at the bottom of the thread-fastening body, wherein an upper supporting point of the thread-fastening connecting part is connected with the thread-fastening driving mechanism, and a lower supporting point of the thread-fastening connecting part is connected with the installation connecting piece.
Preferably, the thread buckling fork comprises a thread buckling fork body and a thread buckling connecting plate for connecting the thread buckling fork body and the thread buckling body; the buckle line fork body extends outwards from the connection part of the buckle line fork body and the buckle line connecting plate.
Preferably, the connecting rod and the mounting connecting piece are respectively staggered at two sides of the wire buckling piece, the connecting rod is connected with the upper supporting point, and the mounting connecting piece is connected with the lower supporting point.
Preferably, the driver of the thread-fastening driving mechanism is mounted on the bottom of the thread-fastening mounting plate.
The invention has the following beneficial effects:
the small-head-distance embroidery machine is compact in structure, convenient for replacing the bottom thread, high in industrialization level and capable of improving the operation efficiency of the embroidery machine.
Drawings
FIG. 1 is a front view of a small-head-distance embroidery machine according to the present invention (only a partial schematic view of an embroidery machine thread take-up device installed between two adjacent rotary shuttles is shown in the drawing);
FIG. 2 is a perspective view illustrating an embodiment of an embroidery machine thread fastening device of a small-pitch embroidery machine according to the present invention;
FIG. 3 is a schematic structural view of the buckle mounting base shown in FIG. 2;
FIG. 4 is a perspective view of the buckle element shown in FIG. 2;
fig. 5 is a schematic perspective view of the driving limiting plate in fig. 2;
FIG. 6 is a perspective view illustrating an alternative embodiment of an embroidery machine thread fastening device of a small-pitch embroidery machine according to the present invention;
FIG. 7 is a perspective view of the buckle element shown in FIG. 6;
FIG. 8 is a perspective view of the buckle mounting plate of FIG. 6;
FIG. 9 is a side view of the thread take-up device of the embroidery machine (using the thread take-up device of FIG. 6) in cooperation with the rotary hook;
fig. 10 is an enlarged perspective view illustrating a three-dimensional structure of the embroidery machine thread fastening device (using the embroidery machine thread fastening device of fig. 6) engaged with the rotary hook.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The invention relates to a small-head-distance embroidery machine which comprises a plurality of machine heads, a plurality of embroidery machine thread buckling devices and a plurality of rotating shuttles arranged on a shuttle race. As shown in fig. 1, the thread take-up apparatus 1 of the embroidery machine includes a thread take-up member having two thread take-up forks, and a thread take-up driving mechanism. The thread buckling piece and the thread buckling driving mechanism are hung and installed in front of the rotary shuttles 3 below the needle plate 2 and between two adjacent rotary shuttles. The two thread buckling forks respectively correspond to the two adjacent rotating shuttles, the thread buckling driving mechanism drives the thread buckling piece to tilt from top to bottom to realize thread buckling, and the thread buckling driving mechanism drives the thread buckling piece to tilt from bottom to top to realize thread loosening.
Fig. 1 is a partial schematic view of an embroidery machine showing only two rotary shuttles located below a needle plate and one embroidery machine thread take-off device installed between the adjacent rotary shuttles. The present invention is not limited to the illustrated number, and a plurality of embroidery machine thread fastening devices may be arranged in this manner according to the number of heads. The invention is not limited to an even number of machine heads, when an odd number of machine heads exist, a thread-fastening piece and a thread-fastening driving mechanism with a single thread-fastening fork can be adopted for the rotary shuttle corresponding to at most one machine head, and the thread-fastening piece and the thread-fastening driving mechanism with two thread-fastening forks can be adopted for the rotary shuttles corresponding to the rest even number of machine heads. The thread-fastening piece and the thread-fastening driving mechanism with a single thread-fastening fork can be installed by adopting the installation mode of the thread-fastening piece and the thread-fastening driving mechanism with two thread-fastening forks, can also be installed at the same spatial position, can also adopt similar thread-fastening structures (for example, the thread-fastening piece only changes the number of the thread-fastening forks), and can also adopt the same or similar thread-fastening driving mode.
The thread-fastening device of the embroidery machine is an integral structure, and can install the thread-fastening piece and the thread-fastening driving mechanism together. Or, the thread-fastening device of the embroidery machine of the invention is a split structure, the thread-fastening piece and the thread-fastening driving mechanism can be separately installed in front of the rotating shuttle, or the thread-fastening piece is installed in front of the rotating shuttle, and the thread-fastening driving mechanism is installed behind the rotating shuttle or below the rotating shuttle. From the viewpoint of compactness of the spatial arrangement and convenience of installation and maintenance, it is preferable that both the thread catching member and the thread catching drive mechanism are installed in front of the rotary hook.
The invention relates to an embroidery machine thread-buckling device which is suspended and installed in front of a rotating shuttle below a needle plate, and the embroidery machine thread-buckling device comprises the following installation modes that 1, a thread-buckling piece and a thread-buckling driving mechanism are suspended and installed at the bottom of the needle plate, and an installation fulcrum is positioned on the needle plate; 2. the thread buckling piece and the thread buckling driving mechanism are arranged below the needle plate in a hanging manner, and the installation supporting points are positioned on the needle plate and the shuttle race; 3. the thread buckling piece and the thread buckling driving mechanism are arranged below the needle plate in a hanging mode, the mounting pivot is located on the shuttle race, for example, a mounting support is arranged on the shuttle race, and the thread buckling piece and the thread buckling driving mechanism can be arranged in front of a rotating shuttle below the needle plate in a hanging mode; 4. on the basis of the above 1, 2 or 3, the thread fastening piece and the thread fastening driving mechanism are suspended and mounted right in front of the rotary hook through the same thread fastening mounting part, or the thread fastening piece and the thread fastening driving mechanism are suspended and mounted right in front of the rotary hook through a mounting part respectively.
The front of the rotating shuttle refers to the front outside the outermost surface of the rotating shuttle and does not include a position close to the outermost surface of the rotating shuttle. Two thread take-off forks correspond to two adjacent rotary shuttles, and as can be seen in fig. 1, each thread take-off fork is disposed directly in front of a rotary shuttle, and the thread take-off drive mechanism is located at a position between the two rotary shuttles.
Fig. 2 to 5 show an embroidery machine thread-fastening device according to an embodiment. The thread-fastening device of the embroidery machine adopts the installation part which is a thread-fastening installation seat 10, can install a thread-fastening piece 11 and a thread-fastening driving mechanism at the same time, and can also be only used as the thread-fastening installation seat of the thread-fastening piece. After a fastener (such as a screw) passes through the thread-fastening mounting seat and a mounting fulcrum (such as a needle plate) on the embroidery machine, the thread-fastening device of the embroidery machine is hung and mounted in front of the rotating shuttle below the needle plate. The thread buckling mounting base 10 is provided with a sliding groove 101, and the thread buckling driving mechanism drives the thread buckling piece 11 to reciprocate along the sliding groove 101, so that the thread buckling and releasing processes are realized.
The thread buckling driving mechanism comprises a thread buckling driver, such as a driving motor, a driving cylinder and a driving electromagnet. The driving shaft of the thread buckling driver drives the thread buckling piece to reciprocate along the sliding groove, and the shape of the sliding groove limits the moving track of the thread buckling piece. For example (referring to fig. 3), the sliding groove 101 includes a horizontal groove section 101a and a diagonal groove section 101b, the horizontal groove section 101a communicates with the diagonal groove section 101b, and the diagonal groove section extends from the horizontal groove section to the direction of the stringing fork and is inclined downward, so that the stringing which is inclined from top to bottom can be realized. For another example, the sliding groove includes a horizontal groove section and a chute section which are not communicated, as long as the chute section is ensured to be positioned between the horizontal groove section and the thread-buckling fork, the chute section inclines towards the thread-buckling movement direction of the thread-buckling piece, namely, the highest point of the chute section is close to the horizontal groove section (the chute section can partially exceed the horizontal groove section, so that the highest point is slightly higher than the horizontal groove section, most of the chute section is positioned below the horizontal groove section, and the highest point of the chute section can be flush with the horizontal groove section), and the lowest point of the chute section is close to the thread-buckling fork. Meanwhile, at least two sliding fit supporting points (the fit mode comprises a pin column or ball fit mode) between the wire buckling piece and the sliding groove are respectively positioned in different groove sections. The chute sections are not limited to the straight chute sections in the figures and may be arcuate chute sections. For another example, the sliding groove is an arc groove, the lowest point of the arc groove is close to the thread-fastening fork, and the highest point of the arc groove is close to the thread-fastening driver. The invention is not limited to the groove type, and the scheme that the wire buckling process is realized by the wire buckling piece which tilts from top to bottom to buckle the wire and the return motion which tilts from bottom to top to loosen the wire is also within the protection scope of the scheme. The sliding groove is a groove with a closed groove bottom, and can also be a sliding way with a penetrating groove bottom. In addition, the invention can also adopt a guide rail to replace a sliding groove to realize the guiding movement of the wire buckling piece.
The line buckling piece is of a symmetrical structure. As shown in fig. 2 and 4, the thread-fastening member includes a thread-fastening body 111, two thread-fastening forks 112 disposed on two sides of the front end of the thread-fastening body 111, and two wing plates 113 disposed on two sides of the rear end of the thread-fastening body 111. The thread-fastening piece is installed below the thread-fastening installation seat (see fig. 2, the thread-fastening piece can also be installed above the thread-fastening installation seat as long as the reciprocating motion of the thread-fastening piece is realized), and the wing plate 113 is used for matching with the thread-fastening installation seat to realize sliding. The thread-buckling fork 112 includes a thread-buckling fork body 112a and a thread-buckling connecting plate 112b connecting the thread-buckling fork body 112a and the thread-buckling body 111. The thread-fastening fork 112a is generally a fork-shaped structure, and may be replaced by other structures capable of fastening the upper thread. The buckle cable fork 112a extends obliquely outward and downward from the connection with the buckle cable connecting plate 112 b. The buckle prongs 112a may also extend obliquely outward and upward or horizontally from their connection with the buckle connection plate 112 b. With reference to fig. 10, which shows a schematic view of a thread take-off fork extending into a rotary hook, any structural variation is within the scope of the present invention, which is provided only as an exemplary view for easy understanding, as long as effective thread take-off is achieved.
As shown in fig. 2 and 3, two sliding grooves 101 are formed on two sides of the buckle wire mounting seat 10, that is, sliding grooves with the same specification are formed on two side plates of the buckle wire mounting seat. The wing plates on the same side are in sliding fit with the sliding grooves, so that the thread buckling driving mechanism drives the thread buckling piece to reciprocate along the sliding grooves. The wing plates are connected with the sliding grooves through pins or rolling bodies. The present invention is not limited to the above-mentioned buckle wire mounting seat structure, and for example, the bottom plate of the buckle wire mounting seat may be arranged to be as long as the buckle wire body, or the bottom plate of the buckle wire mounting seat may extend rearward longer than the buckle wire body (as shown in fig. 2), such as the buckle wire mounting seat in fig. 2 may be inverted. In addition, the bottom of the thread buckling installation seat and the bottom of the thread buckling body are correspondingly provided with installation holes, so that the fastener penetrates through the installation holes to install the thread buckling piece on the embroidery machine through the thread buckling installation seat.
As shown in fig. 2, the mounting portion further includes a connecting rod 13, one end of the connecting rod 13 is connected to the bottom of the thread-fastening member, and the other end is connected to a driving shaft of the thread-fastening driving mechanism (see fig. 2). The bottom of the thread buckling piece (namely the bottom of the thread buckling body) extends downwards to form an installation connecting piece 114, the installation connecting piece 114 is movably connected with one end of the connecting rod, and the other end of the connecting rod is fixedly connected with the driving shaft. The invention is not limited to the connection of the connecting rod between the thread-fastening piece and the thread-fastening driving mechanism, and can also be in other linkage structures, and is not limited to one connecting rod, and can be a plurality of connecting rods. When the mounting portion does not include a link, the driver may be disposed adjacent to the cord lock so that the drive shaft can directly act on the cord lock.
As shown in fig. 2 and 5, the mounting portion further includes a driving limiting plate 14, the driving limiting plate 14 includes an upper plate 141 allowing the connecting rod 13 to pass through and a lower plate 142 parallel to the buckle wire mounting seat 10, and the driver 12 of the buckle wire driving mechanism is mounted between the buckle wire mounting seat 10 and the lower plate 142, that is, the driver of the buckle wire driving mechanism is mounted at the bottom of the buckle wire mounting seat. When the driver is an electromagnet driver, the driving limiting plate is installed for limiting. The driving limit plate can also be arranged into a lateral structure for limiting. The present invention is not limited to the above-described drive restriction plate structure, and may be a single mounting plate structure or a drive mounting structure.
The state of the thread take-up apparatus of the embroidery machine shown in fig. 2 is an initial state when the thread take-up motion is not started or a final state after the thread take-up motion is finished. When the thread is buckled, the thread buckling fork moves forwards. In the initial state, the thread hooking fork of the thread hooking member is substantially parallel to the needle plate, and when inserted into the rotary hook, the thread hooking fork of the thread hooking member is inclined to the needle plate (refer to fig. 10).
Fig. 6 to 8 show an embroidery machine thread-fastening device according to another embodiment. The thread-fastening device of the embroidery machine adopts the installation part which is the thread-fastening installation plate 20, can install the thread-fastening piece 21 and the thread-fastening driving mechanism at the same time, and can also be only used as the thread-fastening installation plate of the thread-fastening piece. After a fastener (such as a screw) passes through the thread-fastening mounting plate and a mounting fulcrum (such as a needle plate) on the embroidery machine, the thread-fastening device of the embroidery machine is hung and mounted in front of the rotating shuttle below the needle plate. The upper supporting point at the bottom of the thread buckling piece 21 is connected with the thread buckling driving mechanism, and the lower supporting point at the bottom of the thread buckling piece 21 is connected with the installation connecting piece 23 arranged at the bottom of the thread buckling installation plate 20. The thread buckling driving mechanism drives the thread buckling piece 21 to swing around the lower support point to do reciprocating motion, so that the thread buckling and releasing processes are realized.
The cord driving mechanism includes a cord driver 22, such as a drive motor, a drive cylinder, and a drive electromagnet. The driving shaft of the thread buckling driver drives the thread buckling piece to swing, and the swing track defines the moving track of the thread buckling piece. For example (see fig. 6), the upper and lower fulcrums are disposed at positions on the fastener element that determine a substantially spatial position of the fastener element for oscillation, and the spacing between the upper and lower fulcrums defines an oscillation radius.
The line buckling piece is of a symmetrical structure. As shown in fig. 6 and 7, the buckle wire member includes a buckle wire body 211, two buckle wire forks 212 disposed at two sides of the front end of the buckle wire body 211, and a buckle wire connection portion 213 disposed at the bottom of the buckle wire body. The upper fulcrum 213a of the buckle line connecting part is connected with the buckle line driving mechanism, and the lower fulcrum 213b of the buckle line connecting part is connected with the mounting connecting piece 23.
The swing fulcrum of the thread buckling piece is positioned below the thread buckling mounting plate. The buckle fork 212 includes a buckle fork body 212a and a buckle connection plate 212b connecting the buckle fork body 212a and the buckle body 211. The thread-fastening fork 212a is generally a fork-shaped structure, and can be replaced by other structures capable of fastening the upper thread. The cleat body 212a extends outwardly from its connection with the cleat connection plate 212 b. The buckle prongs 212a may also extend obliquely downward or obliquely upward or horizontally from their connection with the buckle web 212 b. With reference to fig. 10, which shows a schematic view of a thread take-off fork extending into a rotary hook, any structural variation is within the scope of the present invention, which is provided only as an exemplary view for easy understanding, as long as effective thread take-off is achieved.
As shown in fig. 6 and 8, the buckle mounting plate 20 is a planar mounting plate; the mounting connecting piece is a connecting plate and extends downwards from the edge of the wire buckling mounting plate. The buckle line mounting plate and the mounting connecting piece can be integrally formed. The installation connecting piece in the figure is L-shaped, the long side of the L-shaped extends downwards and vertically, the short side of the L-shaped extends towards the direction of the thread buckling fork, and the short side of the L-shaped is movably connected with the lower fulcrum of the thread buckling piece. The invention is not limited to the buckle wire mounting plate with the structure, and any deformation structure is within the protection scope of the invention on the premise of realizing the technical scheme of the invention.
As shown in fig. 6, the mounting portion further includes a link 24, one end of the link 24 is connected to the upper pivot 213a, and the other end is connected to a driving shaft of the buckle driving mechanism. The connecting rod 24 and the mounting connector 23 are respectively staggered at two sides of the wire buckling piece 21, the connecting rod 24 is connected with the upper supporting point 213a, and the mounting connector 23 is connected with the lower supporting point 213 b. The connecting rod and the mounting connecting piece are not limited to be arranged on two sides of the wire buckling piece in a staggered mode, and can be arranged on the same side; whether the installation connecting pieces are arranged on different sides or the same side, one or two installation connecting pieces can be arranged, when two installation connecting pieces are arranged, the two connecting pieces are arranged on one side of the thread buckling piece, the connecting rod is arranged on the other side of the thread buckling piece, or the two connecting pieces are arranged on one side of the connecting rod, and the thread buckling piece is arranged on the other side of the connecting rod (namely, the two connecting pieces and the connecting rod are arranged on one side of the thread buckling piece), or one installation connecting piece is provided with a through hole, and the connecting rod penetrates through the installation connecting pieces to be connected with the thread buckling piece; or the number of the mounting connecting pieces is two, the two mounting connecting pieces are respectively staggered at two sides of the wire buckling piece and connected with the lower supporting point, and the connecting rod penetrates through a space between the two mounting connecting pieces and then is connected with the upper supporting point. The invention is not limited to the connection of the connecting rod between the thread-fastening piece and the thread-fastening driving mechanism, and can also be used in other linkage structures, and is not limited to one connecting rod. When the mounting portion does not include a connecting rod, the driver may be disposed adjacent to the thread buckling member, and the driving shaft of the driver may be connected to the upper fulcrum of the thread buckling member.
The installation department still includes the drive limiting plate (refer to figure 2 in the preceding embodiment), the drive limiting plate includes the upper plate that allows the connecting rod to pass and the hypoplastron parallel with the knot line mounting panel, the driver of detaining line actuating mechanism is installed between knot line mounting panel and hypoplastron, promptly detain line actuating mechanism's driver and install detain line mount pad bottom. The present invention is not limited to the above-described drive restriction plate structure, and may be a single mounting plate structure or a drive mounting structure.
The state shown in the thread take-up device of the embroidery machine shown in fig. 6 is a thread take-up operation state. As shown in fig. 9 and 10, the thread-fastening member is inserted into the rotary hook, and the thread-fastening fork of the thread-fastening member is inclined with respect to the needle plate (refer to fig. 10). When the thread buckling piece moves back to the initial state, the thread buckling fork of the thread buckling piece is basically parallel to the needle plate relatively.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (16)
1. A small-head-distance embroidery machine comprises a plurality of machine heads, a plurality of embroidery machine thread-buckling devices and a plurality of rotating shuttles arranged on a shuttle race; the thread-buckling device of the embroidery machine is characterized by comprising a thread-buckling piece with two thread-buckling forks and a thread-buckling driving mechanism; the thread buckling piece and the thread buckling driving mechanism are hung in front of the rotating shuttles below the needle plate and are arranged between two adjacent rotating shuttles; two thread buckling forks of each thread buckling device of the embroidery machine respectively correspond to two adjacent rotating shuttles; the thread buckling driving mechanism drives the thread buckling piece to move obliquely from top to bottom to buckle threads, and drives the thread buckling piece to move back from bottom to top to loosen threads; the front of the rotating shuttle refers to the front outside the outermost surface of the rotating shuttle and does not include a position close to the outermost surface of the rotating shuttle.
2. The small-head embroidery machine according to claim 1, characterized in that the thread-fastening member and the thread-fastening driving mechanism are suspended and mounted in front of the rotary shuttle by the same mounting part; or the thread buckling piece and the thread buckling driving mechanism are respectively arranged in front of the rotating shuttle in a hanging mode through a mounting part.
3. The small-head-distance embroidery machine according to claim 2, characterized in that the mounting part for mounting the thread-fastening member is a thread-fastening mounting seat, a sliding groove is formed in the thread-fastening mounting seat, and the thread-fastening driving mechanism drives the thread-fastening member to reciprocate along the sliding groove to realize the thread-fastening and thread-releasing processes.
4. The small-head-distance embroidery machine according to claim 3, wherein the mounting part further comprises a link, one end of the link is connected to the bottom of the thread-fastening member, and the other end of the link is connected to a driving shaft of the thread-fastening driving mechanism.
5. The small-head-distance embroidery machine as claimed in claim 4, wherein a mounting link extends downward from the bottom of the thread fastening member, and the mounting link is movably connected to one end of the link.
6. The small-head-distance embroidery machine as claimed in claim 3, wherein the thread-fastening member comprises a thread-fastening body, two thread-fastening forks provided on both sides of the front end of the thread-fastening body, and two wing plates provided on both sides of the rear end of the thread-fastening body; two sliding grooves are formed in the two sides of the buckle wire mounting seat; the wing plates on the same side are in sliding fit with the sliding grooves, so that the thread buckling driving mechanism drives the thread buckling pieces to reciprocate along the sliding grooves.
7. The small-head-distance embroidery machine according to claim 6, wherein the wing plate is connected with the sliding groove through a pin or a rolling body.
8. The small-head-distance embroidery machine according to claim 3, wherein the sliding groove comprises a horizontal groove section and a chute section, the chute section is positioned between the horizontal groove section and the thread-catching fork, and the chute section is inclined towards the thread-catching motion direction of the thread-catching piece.
9. The small-head-distance embroidery machine as claimed in claim 6, wherein the thread-fastening mounting seat bottom and the thread-fastening body bottom are correspondingly provided with mounting holes, so that a fastener passes through the mounting holes to mount the thread-fastening piece on the embroidery machine through the thread-fastening mounting seat.
10. The small-head-distance embroidery machine according to claim 3, characterized in that the driver of the thread-fastening driving mechanism is mounted at the bottom of the thread-fastening mounting seat.
11. The small-head-distance embroidery machine according to claim 2, wherein the mounting part for mounting the thread fastening member is a thread fastening mounting plate; the upper supporting point at the bottom of the wire buckling piece is connected with the wire buckling driving mechanism, and the lower supporting point at the bottom of the wire buckling piece is connected with the installation connecting piece arranged at the bottom of the wire buckling installation plate; the thread buckling driving mechanism drives the thread buckling piece to swing around the lower fulcrum to do reciprocating motion, and thread buckling and thread loosening processes are achieved.
12. The small-head-distance embroidery machine according to claim 11, wherein the mounting part further comprises a link, one end of the link is connected with the upper fulcrum, and the other end of the link is connected with a driving shaft of the thread-fastening driving mechanism.
13. The small-head-distance embroidery machine according to claim 11, wherein the thread-fastening member comprises a thread-fastening body, two thread-fastening forks provided at both sides of a front end of the thread-fastening body, and a thread-fastening connecting part provided at a bottom of the thread-fastening body, an upper point of the thread-fastening connecting part is connected to the thread-fastening driving mechanism, and a lower point of the thread-fastening connecting part is connected to the mounting link.
14. The small-head embroidery machine according to claim 6 or 13, wherein the thread take-up fork comprises a thread take-up fork body and a thread take-up connecting plate connecting the thread take-up fork body and the thread take-up body; the buckle line fork body extends outwards from the connection part of the buckle line fork body and the buckle line connecting plate.
15. The small-head-distance embroidery machine according to claim 12, wherein the connecting rod and the installation connecting piece are respectively staggered at both sides of the thread fastening piece, the connecting rod is connected with the upper supporting point, and the installation connecting piece is connected with the lower supporting point.
16. The small-head-distance embroidery machine according to claim 11, wherein the driver of the thread take-up driving mechanism is installed at the bottom of the thread take-up mounting plate.
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| CN202110042182.9A CN112695469B (en) | 2021-01-13 | 2021-01-13 | Small-head-distance embroidery machine |
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| CN202110042182.9A CN112695469B (en) | 2021-01-13 | 2021-01-13 | Small-head-distance embroidery machine |
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| CN112695469A CN112695469A (en) | 2021-04-23 |
| CN112695469B true CN112695469B (en) | 2022-06-07 |
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