CN114411349B - Upper thread clamping mechanism of double-needle embroidery machine - Google Patents
Upper thread clamping mechanism of double-needle embroidery machine Download PDFInfo
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- CN114411349B CN114411349B CN202210162246.3A CN202210162246A CN114411349B CN 114411349 B CN114411349 B CN 114411349B CN 202210162246 A CN202210162246 A CN 202210162246A CN 114411349 B CN114411349 B CN 114411349B
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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
The invention relates to the technical field of double-needle embroidery machines, in particular to an upper thread clamping mechanism of a double-needle embroidery machine, which comprises a lower thread passing assembly and an upper thread clamping and releasing assembly; the lower wire passing assembly comprises a pressing strip aluminum seat which is detachably connected with the needle bar frame, and the pressing strip aluminum seat is provided with a first mounting hole; the pressing line spring seat is detachably connected with the pressing strip aluminum seat and is provided with a threading groove allowing the facial line to pass through from top to bottom; the first elastic end of each wire pressing spring is connected with the corresponding wire pressing spring seat, and each wire pressing spring seat is connected with at least two wire pressing springs; and the wire pressing sheet is connected with the second elastic end of the wire pressing spring corresponding to the wire pressing spring seat. The utility model provides a facial line fixture makes two pine line push rods can promote the line of crossing ejector pin synchronous forward/backward movement that corresponds through setting up the pine line connecting rod spare to provide reliable and stable facial line clamping-force for the line ball piece through setting up two at least line ball springs, make two facial lines can be loosened in step or press from both sides tightly by reliable and stable.
Description
Technical Field
The invention relates to the technical field of double-needle embroidery machines, in particular to an upper thread clamping mechanism of a double-needle embroidery machine.
Background
The upper thread clamping mechanism of the double-needle embroidery machine comprises a lower thread passing assembly and an upper thread clamping and releasing assembly, wherein the lower thread passing assembly is mainly used for simultaneously clamping two side threads in a releasing state, the upper thread clamping and releasing assembly is mainly used for simultaneously releasing the two side threads in a clamping state, and the lower thread passing assembly and the upper thread clamping and releasing assembly are mutually matched to enable the two side threads to smoothly pass threads.
The patent with the application number of CN201921242626.8 discloses a little head of duplex drive is apart from embroidery machine aircraft nose and embroidery machine, and its facial line fixture, as shown in figure 1 and figure 2, wherein it includes facial line grip slipper, facial line centre gripping locating part, facial line centre gripping thimble, facial line clamping spring to cross the line subassembly down, the facial line grip slipper is fixed in and installs in needle bar frame bottom end rail front side, facial line centre gripping locating part and facial line centre gripping thimble correspond needle bar quantity and are equipped with a plurality of, facial line centre gripping thimble activity is passed the facial line grip slipper and is connected with facial line centre gripping locating part, facial line centre gripping spring coupling facial line centre gripping thimble, and stimulate facial line centre gripping thimble backward and make facial line centre gripping locating part back activity press from both sides tight facial line. The upper thread clamping and loosening assembly comprises an installation base, two electromagnets which are installed on the installation base side by side, and two driving blocks, two ejector rods and two ejector rod springs which are correspondingly arranged, wherein the electromagnets extend out and sequentially push an upper thread clamping thimble through forward movement of the driving blocks and the ejector rods, so that the upper thread clamping limiting part moves forward and loosens the upper thread, and the ejector rod springs are used for resetting the ejector rods.
The upper thread clamping mechanism of the prior art cannot release or clamp the two upper threads with high synchronism, and even if the two upper threads can clamp the two upper threads with high synchronism, the upper threads cannot be stably and reliably clamped because of the limitation of the structure, so the upper thread clamping mechanism of the prior art has the problems that the two upper threads cannot stably pass the threads with high efficiency, and the using effect is not ideal.
Disclosure of Invention
The invention provides an upper thread clamping mechanism of a double-needle embroidery machine, aiming at the problems in the prior art, and the upper thread clamping mechanism can enable two side threads to efficiently and stably thread, so that the using effect of the upper thread clamping mechanism of the double-needle embroidery machine is effectively improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: an upper thread clamping mechanism of a double-needle embroidery machine comprises a lower thread passing component and an upper thread clamping and releasing component;
the lower wire passing assembly comprises
The layering aluminum seat is detachably connected with the needle bar frame and provided with a first mounting hole;
the pressing line spring seat is detachably connected with the pressing strip aluminum seat and is provided with a threading groove allowing the facial line to pass through from top to bottom;
the first elastic end of each wire pressing spring is connected with the corresponding wire pressing spring seat, and each wire pressing spring seat is connected with at least two wire pressing springs;
the pressing line piece is connected with a second elastic end of the pressing line spring on the corresponding pressing line spring seat and is abutted against the pressing bar aluminum seat through the elastic force of the pressing line spring;
a first axial end of the thread passing ejector rod is connected with the corresponding thread pressing piece, and a rod body of the thread passing ejector rod is movably connected with the corresponding first mounting hole;
the facial line clamping and releasing component comprises
The loose wire connecting rod piece comprises a loose wire connecting rod shaft and loose wire connecting rods arranged at two axial ends of the loose wire connecting rod shaft;
two loose wire push rod pieces; each thread loosening push rod piece comprises a thread loosening push rod connected with the corresponding thread loosening connecting rod; the thread releasing push rod is connected with the second axial end corresponding to the thread passing push rod and used for pushing the thread passing push rod to move axially;
and the electromagnet is used for driving the corresponding loose wire push rod to move in an electrified state.
Preferably, the lower wire passing assembly further comprises
The soft rubber pressing strip is used for being matched with the thread pressing piece to clamp the upper thread; the layering aluminium seat is seted up and is installed the first mounting groove of flexible glue layering.
Preferably, the wire pressing spring seat is provided with a spring mounting hole; the wire pressing spring is connected with the spring mounting hole, and a second elastic end of the wire pressing spring protrudes out of the spring mounting hole.
Preferably, the lower wire passing assembly further comprises
The wire porcelain rod is used for guiding the upper threads at the outlet of the threading groove; the layering aluminum seat is provided with a second mounting groove for mounting the wire porcelain rod.
Preferably, the wire pressing spring seat comprises a spring seat body, an upper connecting body, an upper limiting blocking body, a lower connecting body and a lower limiting blocking body, wherein the upper connecting body, the upper limiting blocking body, the lower connecting body and the lower limiting blocking body are arranged on the back side of the spring seat body;
the upper connector and the upper limiting baffle body are arranged at intervals to form an upper threading groove, and the lower connector and the lower limiting baffle body are arranged at intervals to form a lower threading groove;
the threading groove comprises an upper threading groove and a lower threading groove.
Preferably, the thread releasing push rod comprises a push rod body and a push rod connecting sheet, and a guide limiting bulge is arranged on the push rod connecting sheet; the thread releasing connecting rod is provided with a limiting guide hole which is matched and connected with the limiting guide bulge.
Preferably, the thread-loosening push rod component further comprises
The first axial end of the push rod shaft is connected with the thread loosening push rod, and the second axial end of the push rod shaft is butted with the electromagnet;
the push rod shaft mounting seat is provided with a push rod guide hole allowing the push rod shaft to axially penetrate through.
Preferably, the thread loosening push rod piece further comprises a limiting pin connected with the push rod shaft; the push rod shaft mounting seat is provided with a limiting guide groove in matched connection with the limiting pin.
Preferably, the needle thread holding and releasing assembly further comprises
And the positioning connecting frame is used for connecting the electromagnet and a push rod shaft mounting seat of the thread loosening push rod piece.
Preferably, the slack link member further comprises
The connecting rod mounting seat is provided with a connecting rod mounting hole allowing the loose connecting rod to axially penetrate through;
the connecting rod torsional spring with the pine line connecting rod cup joints, just the first elasticity end of connecting rod torsional spring with the connecting rod mount pad is connected, the second elasticity end with the pine line connecting rod is connected.
Advantageous effects
The utility model provides a facial line fixture makes two pine line push rods can promote the corresponding line of crossing ejector pin and move forward/backward in step through setting up the pine line connecting rod spare to provide reliable and stable facial line clamping-force for the line ball piece through setting up two at least line ball springs, make two facial lines can be loosened in step or press from both sides tightly by reliable and stable, and then effectively improved two needle embroidery machine facial line fixture's facial line effect of crossing.
Drawings
FIG. 1 is a schematic structural view of a lower wire passing assembly in the prior art;
FIG. 2 is a schematic view showing a structure of a needle thread holding and releasing assembly in the prior art;
FIG. 3 is a schematic structural view of a head of the double needle embroidery machine of the present application;
FIG. 4 is a schematic structural view of a lower wire passing assembly of the present application;
FIG. 5 is a partially exploded view of the lower wire passing assembly of FIG. 4;
FIG. 6 is a schematic structural diagram of a first viewing angle at which a wire pressing spring seat is connected with a pressing strip aluminum seat according to the present application;
FIG. 7 is a schematic structural diagram of a second view angle at which a wire pressing spring seat is connected with a pressing strip aluminum seat according to the present application;
FIG. 8 is a schematic structural view of an aluminum seat of the molding bar of the present application;
FIG. 9 is a schematic view of the back of the wire pressing spring seat of the present application;
FIG. 10 is a schematic view of the connection structure of the soft rubber molding, the lead porcelain rod and the molding aluminum seat of the present application;
FIG. 11 is a schematic structural diagram of a wire pressing sheet of the present application;
FIG. 12 is a schematic view showing a structure of the needle thread holding and releasing assembly according to the present invention;
FIG. 13 is an exploded view of the panel clamping and release assembly of FIG. 12;
FIG. 14 is a schematic view of the structure of the loose wire link member of the present application;
FIG. 15 is a schematic view of the structure of the thread releasing pusher member of the present application;
FIG. 16 is a schematic view of the construction of a push rod shaft according to the present application;
fig. 17 is a schematic view of a connection structure of the electromagnet and the positioning connection frame according to the present application.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example (b): as shown in FIG. 3, the upper thread holding mechanism of the double needle embroidery machine comprises a lower thread passing assembly 1 and an upper thread holding and releasing assembly 2.
As shown in fig. 4 and 5, the lower wire-passing assembly 1 comprises a layering aluminum seat 1-1, a wire-pressing spring seat 1-2, a wire-pressing spring 1-3, a wire-pressing sheet 1-4, a wire-passing mandril 1-5, a soft rubber layering 1-6 and a wire porcelain rod 1-7.
As shown in fig. 8, the pressing strip aluminum seat 1-1 is used for connecting with a needle bar frame, the pressing strip aluminum seat 1-1 is in a long plate shape, a plate seat connecting hole 1-1-5 for connecting with the needle bar frame is formed in the pressing strip aluminum seat 1-1, and the pressing strip aluminum seat 1-1 can be detachably connected with the needle bar frame through the plate seat connecting hole 1-1-5 and a bolt. The side of the pressing strip aluminum seat 1-1, which is back to the needle bar frame, is provided with a first mounting groove 1-1-1 and a second mounting groove 1-1-2 which are arranged in parallel and penetrate through the length direction of the pressing strip aluminum seat 1-1. The first mounting groove 1-1-1 is arranged above the batten aluminum seat 1-1 and is mainly used for mounting the soft rubber batten 1-6. The second mounting groove 1-1-2 is arranged at the position below the batten aluminum seat 1-1 and is mainly used for mounting the wire porcelain rod 1-7. In addition, a row of first mounting holes 1-1-3 (7 can be used) and a row of second mounting holes 1-1-4 (7 can be used) are also formed in the batten aluminum seat 1-1 along the length direction of the batten aluminum seat. The first mounting hole 1-1-3 is positioned in the first mounting groove 1-1-1 and is used for a rod body of the thread passing ejector rod 1-5 to pass through. The second mounting hole 1-1-4 is located between the first mounting groove 1-1-1 and the second mounting groove 1-1-2 and is used for being connected with the pressure wire spring seat 1-2. The top of the layering aluminum seat 1-1 is also provided with a strip-shaped connecting bulge 1-1-6 along the length direction and is also used for connecting with the line pressing spring seat 1-2.
As shown in fig. 4, one pressing bar aluminum seat 1-1 is provided with a plurality of pressing spring seats 1-2 (may be 7). The specific structure of the wire pressing spring seat 1-2 is shown in fig. 6, 7 and 9, and comprises a spring seat body 1-2-1, an upper connecting body 1-2-2 and an upper limiting baffle 1-2-3 which are arranged at the top of the back side (facing the side of the batten aluminum seat 1-1) of the spring seat body 1-2-1, and a lower connecting body 1-2-4 and a lower limiting baffle 1-2-5 which are arranged at the bottom of the back side of the spring seat body 1-2-1. The upper connector 1-2-2 and the upper limiting baffle 1-2-3 are separated to form an upper threading groove, the lower connector 1-2-4 and the lower limiting baffle 1-2-5 are separated to form a lower threading groove, and the threading groove just comprises the upper threading groove and the lower threading groove. The upper threading slot is matched with the layering aluminum seat 1-1 to form an upper threading hole, the lower threading slot is matched with the layering aluminum seat 1-1 to form a lower threading hole, the upper threading hole enters the upper threading slot, passes through a gap between the line pressing piece 1-4 and the flexible glue layering 1-6 and finally penetrates out of the lower threading hole (namely the outlet of the threading slot), and the structure effectively improves the threading convenience of the upper threading and further improves the threading efficiency of the upper threading. In addition, the upper connector 1-2-2 and the lower connector 1-2-4 have the functions of connecting the wire pressing spring seat 1-2 and the pressing strip aluminum seat 1-1, and the upper limiting baffle 1-2-3 and the lower limiting baffle 1-2-5 are mainly used for being matched with the upper connector 1-2-2 or the lower connector 1-2-4 to form a wire threading groove which is not contacted with the pressing strip aluminum seat 1-1.
Specifically, the upper connector 1-2-2 is provided with a clamping groove 1-2-2a, and the clamping groove 1-2-2a is used for being clamped with a clamping protrusion 1-1-6 on the top of the pressing strip aluminum seat 1-1 in a matching mode. The lower connecting body 1-2-4 is provided with a butt joint hole 1-2-7 which is in fit connection with the second mounting hole 1-1-4, and the butt joint hole 1-2-7 and the second mounting hole 1-1-4 can be connected through a screw. When the pressing spring seat 1-2 is connected with the pressing strip aluminum seat 1-1, the clamping groove 1-2-2a of the upper connecting body 1-2-2 is clamped on the clamping protrusion 1-1-6 at the top of the pressing strip aluminum seat 1-1, and then the butt joint hole 1-2-7 of the lower connecting body 1-2-4 is connected with the second mounting hole 1-1-4 of the pressing strip aluminum seat 1-1 through a screw. In addition, in order to make the lower wire passing assembly more beautiful, the wire pressing spring seat 1-2 can be provided with a gap groove for accommodating a screw head.
Further, as shown in fig. 5, each of the pressing spring seats 1-2 is connected to two pressing springs 1-3, a first elastic end of each of the pressing springs 1-3 is connected to the corresponding pressing spring seat 1-2, a second elastic end of each of the pressing springs 1-3 is connected to a corresponding pressing strip 1-4, and the pressing strips 1-4 are abutted against the soft rubber pressing strips 1-6 of the pressing strip aluminum seats 1-1 by the elastic force of the pressing springs 1-3, so as to achieve the purpose of clamping the upper threads. The two pressing wire springs 1-3 are arranged, so that the pressing wire pieces 1-4 are stressed more uniformly, and the pressing wire pieces 1-4 and the pressing strip aluminum seats 1-1 can clamp the upper wires very stably and reliably. In addition, as shown in fig. 9, two spring mounting holes 1-2-6 are formed in the spring seat body 1-2-1, the spring mounting holes 1-2-6 are used for mounting wire pressing springs 1-3, and second free ends of the wire pressing springs 1-3 protrude out of the spring mounting holes 1-2-6 to be connected with wire pressing sheets 1-4. The wire pressing springs 1-3 are installed through the spring installation holes 1-2-6, so that the elastic directions of the wire pressing springs 1-3 are always kept on a straight line, the elastic force borne by the wire pressing sheets 1-4 is more stable, and the effect of clamping the facial line by the wire pressing sheets 1-4 is better and the stability is higher.
According to the upper-layer thread-pressing device, the soft rubber pressing strip 1-6 is arranged on the pressing strip aluminum seat 1-1 to be matched with the thread-pressing piece 1-4 to clamp the upper thread, the friction force of the soft rubber pressing strip 1-6 is larger than that of the pressing strip aluminum seat 1-1, and the upper thread is clamped through matching of the soft rubber pressing strip 1-6 and the thread-pressing piece 41, so that the upper thread is better in clamping effect and higher in stability. In addition, as shown in fig. 10, the friction increasing structure is further arranged on the side, facing the thread pressing piece 1-4, of the soft rubber pressing strip 1-6, the friction increasing structure can be a strip-shaped groove formed in the soft rubber pressing strip 1-6, and the contact friction force between the soft rubber pressing strip 1-6 and the thread pressing piece 1-4 can be further improved through the friction increasing structure, so that the clamping stability of the facial threads is further improved. The soft rubber pressure strip 1-6 is also provided with a soft rubber pressure strip hole which is in matched butt joint with the first mounting hole 1-1-3 and is used for the rod body of the thread passing ejector rod 1-5 to pass through.
The first axial end of the thread passing ejector rod 1-5 is connected with the thread pressing piece 1-4, and the rod body of the thread passing ejector rod 1-5 penetrates through the soft rubber strip pressing hole and the first mounting hole 1-1-3 and can move axially in the soft rubber strip pressing hole and the first mounting hole 1-1-3. When the facial line needs to be loosened, the line-passing ejector rod 1-5 can be pushed axially along the line-passing ejector rod 1-5 to push the line-pressing piece 1-4 away from the pressing strip aluminum seat 1-1, the facial line can normally advance after the line-pressing piece 1-4 is separated from the soft rubber pressing strip 1-6, when the facial line needs to be clamped, the line-passing ejector rod 1-5 can be loosened (the line-passing ejector rod 1-5 axially moves in the opposite direction), and the line-pressing piece 1-4 is abutted against the soft rubber pressing strip 1-6 under the elastic action of the line-pressing spring 1-3 to clamp the facial line.
Further, as shown in fig. 11, the wire pressing sheet 1-4 is provided with a positioning hole 1-4-1 for connecting with the wire passing post rod 1-5. The positioning holes 1-4-1 are arranged, so that the connection between the wire-passing ejector rods 1-5 and the wire pressing pieces 1-4 can be facilitated on one hand, and the connection positions between the wire-passing ejector rods 1-5 and the wire pressing pieces 1-4 can be determined on the other hand, and the connection positions enable the wire-passing ejector rods 1-5 and the wire pressing pieces 1-4 to be stably and reliably pushed to move after being connected. In addition, the line pressing sheets 1-4 comprise line clamping parts, bending parts and supporting parts. The line clamping part is a first sheet body used for clamping a facial line in cooperation with the soft rubber pressing strip 1-6, the supporting part is a second sheet body used for supporting against the line pressing spring seat 1-2 (when the line pressing strip 1-4 is separated from the soft rubber pressing strip 1-6), the first sheet body and the second sheet body are staggered and not positioned on the same plane through the bending part, and after the line passing ejector rod 1-5 is connected with the positioning hole 1-4-1 through staggered arrangement (the line passing ejector rod 1-5 is partially protruded out of the first sheet body), the line pressing strip 1-4 can still support against the line pressing spring seat 1-2 through the second sheet body.
As shown in figure 9, the wire porcelain rod 1-7 is arranged at the outlet of the threading groove, and the wire porcelain rod 1-7 is arranged in the second mounting groove 1-1-2 of the layering aluminum seat 1-1. The wire porcelain rods 1-7 can guide the upper threads at the outlet of the threading groove, so that the upper threads are more smoothly outgoing, and the upper threads are not easy to scrape off.
Further, as shown in fig. 12 and 13, the upper thread holding and releasing assembly of the present application includes a thread releasing link member 2-1, two thread releasing push rod members 2-2, an electromagnet 2-3 and a positioning link 2-4.
As shown in fig. 14, the thread-loosening connecting rod piece 2-1 comprises a thread-loosening connecting rod shaft 2-1-1, thread-loosening connecting rods 2-1-2 arranged at two axial ends of the thread-loosening connecting rod shaft 2-1-1, a connecting rod mounting seat 2-1-3, a connecting rod torsion spring 2-1-4 and a limiting sleeve 2-1-5. The connecting rod mounting seat 2-1-3 can comprise a plate-shaped mounting seat body and mounting lugs arranged at two ends of the mounting seat body in the length direction, and connecting rod shaft mounting holes allowing the loose connecting rod shaft 2-1-1 to axially penetrate are formed in the mounting lugs. Be equipped with first connecting hole on the mount pad body, the mount pad body can be connected fixedly with the aircraft nose casing through first connecting hole and connecting piece. The loose wire connecting rod shaft 2-1-1 can rotate circumferentially relative to the connecting rod mounting seat 2-1-3 after being connected with the connecting rod shaft mounting hole. The first axial end of the loose wire connecting rod 2-1-2 is fixedly connected with the loose wire connecting rod shaft 2-1-1, and the second axial end is provided with a limiting guide hole 2-1-2a (in an oval shape). When one of the loose wire connecting rods 2-1-2 rotates, the loose wire connecting rod shaft 2-1-1 is driven to rotate, and when the loose wire connecting rod shaft 2-1-1 rotates, the other loose wire connecting rod 2-1-2 is driven to rotate simultaneously.
The first elastic end of the connecting rod torsion spring 2-1-4 is fixedly connected with the connecting rod mounting seat 2-1-3, and the second elastic end of the connecting rod torsion spring is fixedly connected with the thread releasing connecting rod 2-1-2. Because the position of the connecting rod mounting seat 2-1-3 is fixed, when the thread releasing connecting rod 2-1-2 rotates under external force, the connecting rod torsion spring 2-1-4 is driven to act together, and when the external force applied to the thread releasing connecting rod 2-1-2 disappears, the connecting rod torsion spring 2-1-4 enables the thread releasing connecting rod 2-1-2 to rotate and reset through elastic torsion. In addition, in order to facilitate the connection of the thread releasing connecting rod 1-2 and the thread releasing connecting rod shaft 1-1, the thread releasing connecting rod 2-1-2 can be arranged to be in a structure which is limited with the thread releasing connecting rod shaft 1-1 in the circumferential direction and can move axially. When the device is assembled, the loose wire connecting rods 2-1-2 need to be axially limited, one loose wire connecting rod 2-1-2 can be axially limited through the matching arrangement of the connecting rod torsion springs 2-1-4 and the fastening nuts, and the other loose wire connecting rod 2-1-2 can be axially limited through the matching arrangement of the limiting sleeves 2-1-5 and the fastening nuts.
As shown in fig. 15, the thread loosening push rod part 2-2 comprises a thread loosening push rod 2-2-1 connected with the corresponding thread loosening connecting rod 2-1-2, a push rod shaft 2-2, a push rod shaft mounting seat 2-2-3 and a limiting pin 2-2-4. The thread loosening push rod 2-2-1 comprises a push rod body and a push rod connecting piece which are integrally formed, the push rod body is used for pushing the thread passing ejector rod 1-5 to move axially, and the thread pressing piece 1-4 can be pushed open when the thread passing ejector rod 1-5 moves, so that the upper threads pressed by the thread pressing piece 1-4 are loosened. The push rod connecting piece is provided with a guide limiting bulge 2-2-1a, and the thread loosening push rod 2-2-1 can rotate synchronously with the thread loosening connecting rod 2-1-2 through the cooperation of the guide limiting bulge 2-2-1a and the limiting guide hole 2-1-2a when moving.
As shown in fig. 16, a first axial end of the push rod shaft 2-2-2 is provided with a first section part 2-2-2a for connecting with the loose thread push rod 2-2-1, the first section part 2-2-2a is provided with a second connecting hole, and the push rod shaft 2-2-2 is connected with the loose thread push rod 2-2-1 through the second connecting hole and a connecting piece. The push rod shaft mounting seat 2-2-3 is provided with a push rod guide hole allowing the push rod shaft 2-2-2 to axially penetrate through, and the push rod guide hole enables the push rod shaft 2-2-2 to move relative to the push rod shaft mounting seat 2-2-3 along the axial direction of the push rod shaft, so that the thread loosening push rod 2-2-1 can move back and forth in the same linear direction. In addition, a second section part 2-2b is arranged at the second axial end of the push rod shaft 2-2-2, a third connecting hole is formed in the second section part 2-2-2b, and the push rod shaft 2-2-2 is connected with the limiting pin 2-2-4 through the third connecting hole. The push rod shaft mounting seat 2-2-3 is provided with a limiting guide groove in matched connection with the limiting pin 2-2-4. The limiting pin 2-2-4 can move back and forth in the limiting guide groove, and the axial moving range of the push rod shaft 2-2-2 can be controlled through the arrangement of the limiting pin 2-2-4 and the limiting guide groove, so that the position of the thread loosening push rod 2-2-1 can be moved more accurately, and the effect of the thread clamping loosening assembly on the thread loosening is improved.
As shown in figure 17, the electromagnet 2-3 comprises an electromagnetic rod 2-3-1, the axial end of the electromagnetic rod 2-3-1 is just butted with the axial end of the push rod shaft 2-2-2, the electromagnet 2-3 is electrified to enable the electromagnetic rod 2-3-1 to generate magnetic force, and the electromagnetic rod 2-3-1 can push the push rod shaft 2-2-2 to axially move relative to the push rod shaft mounting seat 2-2-3 through the magnetic force. When the push rod shaft 2-2-2 moves, the thread loosening push rod 2-2-1 can be driven to move.
As shown in fig. 17, in order to make the relative installation position of the thread releasing pusher member 2-2 and the electromagnet 2-3 more accurate (i.e., the electromagnet rod 2-3-1 can be aligned with the pusher shaft 2-2-2 effectively after the assembly of the upper thread holding and releasing assembly is completed), the present application connects the electromagnet 2-3 and the pusher shaft mounting seat 2-2-3 of one of the thread releasing pusher members 2-2 by positioning the connecting frame 2-4. And the push rod shaft mounting seat 2-2-3 of the other thread loosening push rod component 2-2 is directly connected and fixed with the machine head shell. Specifically, the positioning connection frame 2-4 comprises a first plate frame 2-4-1 used for being connected with the electromagnet 2-3 and a second plate frame 2-4-2 connected with the first plate frame 2-4-1 and used for installing the push rod shaft installation seat 2-2-3. The first plate frame 2-4-1 mainly plays a supporting role, the second plate frame 2-4-2 mainly plays a position adjusting role, and the position of the second plate frame 2-4-2 relative to the first plate frame 2-4-1 can be finely adjusted, so that the installation position of the push rod shaft installation seat 2-2-3 relative to the electromagnet 2-3 can be finely adjusted, and the electromagnetic rod 2-3-1 and the push rod shaft 2-2-2 can be effectively aligned.
The specific working principle of the upper thread clamping and releasing assembly is as follows, when the upper thread needs to be released, the electromagnet 2-3 is controlled to be powered on, so that the electromagnetic rod 2-3-1 generates a magnetic force repelling with the push rod shaft 2-2-2, and the push rod shaft 2-2-2 moves along the axial direction under the action of the magnetic force, so that the upper thread releasing push rod 2-2-1 is pushed to move forwards (the upper thread releasing push rod 2-2-1 can push the lower thread passing push rod 1-5 of the lower thread passing assembly 1 to move forwards axially in the forward moving process, so that the upper thread is released). In addition, in the moving process of the thread releasing push rod 2-2-1, the thread releasing connecting rod 2-1-2 connected with the thread releasing push rod is driven to rotate, the thread releasing connecting rod shaft 2-1-1 is driven to rotate when the thread releasing connecting rod 2-1-2 rotates, the other thread releasing connecting rod 2-1-2 is driven to rotate in the rotating process of the thread releasing connecting rod shaft 2-1-1, the other thread releasing push rod 2-2-1 can move forwards, and the forward movement of the two thread releasing push rods 2-2-1 is carried out synchronously (so that the two upper threads can be released synchronously). When the surface thread is completely loosened, only the electromagnet 2-3 needs to be controlled to lose power, the electromagnetic rod 2-3-1 loses the magnetic force repelling with the push rod shaft 2-2-2 (namely the push rod shaft 2-2-2 loses the forward thrust), at the moment, the thread loosening connecting rod 2-1-2 connected with the connecting rod torsion spring 2-1-4 can rotate and reset under the action of the elastic torsion of the connecting rod torsion spring 2-1-4 (simultaneously drives the thread loosening connecting rod shaft 2-1-1 and the other thread loosening connecting rod 2-1-2 to reset), and the thread loosening connecting rod 2-1-2 can also drive the thread loosening push rod 2-2-1 and the push rod shaft 2-2-2 to reversely reset and move in the resetting process.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (8)
1. The utility model provides a double needle embroidery machine upper thread fixture which characterized in that: comprises a lower wire passing component (1) and a surface wire clamping and loosening component (2);
the lower wire passing assembly (1) comprises
The pressing strip aluminum seat (1-1) is detachably connected with the needle bar frame, and the pressing strip aluminum seat (1-1) is provided with a first mounting hole (1-1-3);
the pressing line spring seat (1-2) is detachably connected with the pressing bar aluminum seat (1-1), and the pressing line spring seat (1-2) is provided with a threading groove for allowing the facial line to pass through from top to bottom;
the first elastic end of each wire pressing spring (1-3) is connected with the corresponding wire pressing spring seat (1-2), and each wire pressing spring seat (1-2) is connected with at least two wire pressing springs (1-3);
the wire pressing piece (1-4) is connected with a second elastic end of the wire pressing spring (1-3) on the corresponding wire pressing spring seat (1-2), and the wire pressing piece (1-4) is abutted against the pressing strip aluminum seat (1-1) through the elastic force of the wire pressing spring (1-3);
a first axial end of the thread passing ejector rod (1-5) is connected with the corresponding thread pressing piece (1-4), and a rod body of the thread passing ejector rod (1-5) is movably connected with the corresponding first mounting hole (1-1-3);
the wire pressing spring seat (1-2) is provided with a spring mounting hole (1-2-6); the wire pressing spring (1-3) is connected with the spring mounting hole (1-2-6), and a second elastic end of the wire pressing spring (1-3) protrudes out of the spring mounting hole (1-2-6);
the wire pressing spring seat (1-2) comprises a spring seat body (1-2-1), an upper connecting body (1-2-2) arranged on the back side of the spring seat body (1-2-1), an upper limiting baffle body (1-2-3), a lower connecting body (1-2-4) and a lower limiting baffle body (1-2-5); the upper connector (1-2-2) and the upper limit baffle (1-2-3) are arranged at intervals to form an upper threading groove, and the lower connector (1-2-4) and the lower limit baffle (1-2-5) are arranged at intervals to form a lower threading groove; the threading grooves comprise the upper threading groove and the lower threading groove;
the upper thread clamping and releasing component (2) comprises
The thread-loosening connecting rod piece (2-1) comprises a thread-loosening connecting rod shaft (2-1-1) and thread-loosening connecting rods (2-1-2) arranged at two axial ends of the thread-loosening connecting rod shaft (2-1-1);
two loose wire push rod pieces (2-2); each thread-loosening push rod piece (2-2) comprises a thread-loosening push rod (2-2-1) connected with the corresponding thread-loosening connecting rod (2-1-2); the thread loosening push rod (2-2-1) is connected with the second axial end corresponding to the thread passing ejector rod (1-5) and is used for pushing the thread passing ejector rod (1-5) to move axially;
and the electromagnet (2-3) is used for driving the corresponding loose wire push rod (2-2-1) to move in an electrified state.
2. The upper thread gripping mechanism of the double needle embroidery machine as claimed in claim 1, wherein: the lower wire passing assembly (1) also comprises
The soft rubber pressing strips (1-6) are used for being matched with the thread pressing sheets (1-4) to clamp the upper threads; the trim strip aluminum seat (1-1) is provided with a first mounting groove (1-1-1) for mounting the soft rubber trim strip (1-6).
3. The needle thread holding mechanism of the double needle embroidery machine according to claim 1, characterized in that: the lower wire passing assembly (1) also comprises
The wire porcelain rod (1-7) is used for guiding the upper thread at the outlet of the threading groove; the layering aluminum seat (1-1) is provided with a second mounting groove (1-1-2) for mounting the wire porcelain rod (1-7).
4. The upper thread gripping mechanism of the double needle embroidery machine as claimed in claim 1, wherein: the thread-releasing push rod (2-2-1) comprises a push rod body and a push rod connecting sheet, and a guide limiting bulge (2-2-1 a) is arranged on the push rod connecting sheet; the thread releasing connecting rod (2-1-2) is provided with a limiting guide hole (2-1-2 a) which is in matched connection with the limiting guide bulge (2-2-1 a).
5. The needle thread holding mechanism of the double needle embroidery machine according to claim 1, characterized in that: the thread-loosening push rod part (2-2) also comprises
The first axial end of the push rod shaft (2-2-2) is connected with the thread loosening push rod (2-2-1), and the second axial end of the push rod shaft is butted with the electromagnet (2-3);
the push rod shaft mounting seat (2-2-3) is provided with a push rod guide hole allowing the push rod shaft (2-2-2) to axially penetrate through.
6. The upper thread gripping mechanism of the double needle embroidery machine as claimed in claim 5, wherein: the thread loosening push rod piece (2-2) further comprises a limiting pin (2-2-4) connected with the push rod shaft (2-2-2); the push rod shaft mounting seat (2-2-3) is provided with a limiting guide groove which is in matched connection with the limiting pin (2-2-4).
7. The upper thread gripping mechanism of the double needle embroidery machine as claimed in claim 5, wherein: the facial suture clamping and releasing component also comprises
And the positioning connecting frame (2-4) is used for connecting the electromagnet (2-3) and a push rod shaft mounting seat (2-2-3) of the loose wire push rod piece (2-2).
8. The upper thread gripping mechanism of the double needle embroidery machine as claimed in claim 1, wherein: the loose wire connecting rod piece (2-1) also comprises
The connecting rod mounting seat (2-1-3) is provided with a connecting rod mounting hole allowing the loose connecting rod (2-1-2) to axially penetrate through;
the connecting rod torsion spring (2-1-4) is sleeved with the thread-releasing connecting rod (2-1-2), a first elastic end of the connecting rod torsion spring (2-1-4) is connected with the connecting rod mounting seat (2-1-3), and a second elastic end of the connecting rod torsion spring is connected with the thread-releasing connecting rod (2-1-2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210162246.3A CN114411349B (en) | 2022-02-22 | 2022-02-22 | Upper thread clamping mechanism of double-needle embroidery machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210162246.3A CN114411349B (en) | 2022-02-22 | 2022-02-22 | Upper thread clamping mechanism of double-needle embroidery machine |
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| CN114411349A CN114411349A (en) | 2022-04-29 |
| CN114411349B true CN114411349B (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207130460U (en) * | 2017-07-06 | 2018-03-23 | 诸暨玛雅电器机械有限公司 | The facial line clamping device of embroidery machine |
| CN209602790U (en) * | 2019-01-15 | 2019-11-08 | 翁达 | A kind of embroidery machine facial line clamping device |
| CN112663240A (en) * | 2020-12-23 | 2021-04-16 | 浙江信胜科技股份有限公司 | Push rod structure of upper thread clamping device and upper thread clamping device of embroidery machine |
| WO2021227260A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine integrating presser foot lifting and thread tension adjustment |
-
2022
- 2022-02-22 CN CN202210162246.3A patent/CN114411349B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207130460U (en) * | 2017-07-06 | 2018-03-23 | 诸暨玛雅电器机械有限公司 | The facial line clamping device of embroidery machine |
| CN209602790U (en) * | 2019-01-15 | 2019-11-08 | 翁达 | A kind of embroidery machine facial line clamping device |
| WO2021227260A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine integrating presser foot lifting and thread tension adjustment |
| CN112663240A (en) * | 2020-12-23 | 2021-04-16 | 浙江信胜科技股份有限公司 | Push rod structure of upper thread clamping device and upper thread clamping device of embroidery machine |
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| CN114411349A (en) | 2022-04-29 |
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