CN211570997U - Shuttle assembly of sewing machine - Google Patents
Shuttle assembly of sewing machine Download PDFInfo
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- CN211570997U CN211570997U CN201921827741.1U CN201921827741U CN211570997U CN 211570997 U CN211570997 U CN 211570997U CN 201921827741 U CN201921827741 U CN 201921827741U CN 211570997 U CN211570997 U CN 211570997U
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Abstract
The utility model relates to the technical field of sewing machines, and discloses a machine shuttle assembly of a sewing machine, which comprises a shuttle sleeve and a rotating shuttle, wherein a positioning block is arranged at the side part of the shuttle sleeve, a positioning groove matched with the positioning block is arranged on an inner shuttle frame, meanwhile, a first connecting piece is arranged at the bottom of an inner cavity, a second connecting piece is arranged at the bottom of the shuttle sleeve, the shuttle sleeve is detachably connected with the second connecting piece through the first connecting piece, and when the machine is installed, only one positioning block is needed to be used for positioning between the shuttle sleeve and the inner shuttle frame of the rotating shuttle, the shuttle sleeve is put into the inner shuttle frame, the first connecting piece in the inner cavity and the second connecting piece at the bottom of the shuttle sleeve are connected and fixed, because the first connecting piece and the second connecting piece are arranged at the bottom of the inner cavity and the shuttle sleeve, the volume of the shuttle sleeve and the inner shuttle frame can be prevented from being increased, the integrity of the machine shuttle assembly, only one positioning structure needs to be adjusted, the operation is simple, the use is convenient, the time and the labor are saved, and the sewing efficiency of the sewing machine is greatly improved.
Description
Technical Field
The utility model relates to a sewing machine's technical field especially relates to a sewing machine's machine shuttle subassembly.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The shuttle assembly of the sewing machine is an important part on the sewing machine and is used for placing the bottom thread and ensuring the smooth and reliable supply of the bottom thread. In a sewing machine, a shuttle assembly and a needle play a crucial role in forming a stitch.
The machine shuttle assembly is arranged below a needle plate of the sewing machine and comprises a rotating shuttle and a shuttle sleeve arranged in the rotating shuttle, the shuttle sleeve is used for placing a bottom thread coil and guiding the bottom thread of the coil to come out of the machine shuttle assembly to be crossed with an upper thread ring of a machine needle so as to form a stitch on a sewing material, an outer shuttle frame of the rotating shuttle is connected with a lower shaft of the sewing machine and driven by the lower shaft to rotate circumferentially along with the vertical movement of the machine needle and rotatably support an inner shuttle frame, so that the bottom thread can be smoothly and reliably supplied along with the vertical reciprocating of the machine needle.
The inner shuttle frame and the rotating shuttle of the shuttle sleeve of the existing sewing machine are connected through a plurality of positioning locking mechanisms, generally, the plurality of positioning locking mechanisms are arranged on the upper part of the inner shuttle frame, however, the shuttle sleeve and the rotating shuttle of the machine shuttle assembly are small and exquisite components, the inner shuttle frame is provided with a plurality of positioning locking structures, and the accurate positioning locking of each positioning locking mechanism is required to be ensured when the inner shuttle frame and the rotating shuttle are installed and disassembled, the operation is complex, time and labor are wasted, and the sewing efficiency of the sewing machine is not improved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the inner shuttle frame and the shuttle sleeve of the existing rotating shuttle are fixedly connected through a plurality of positioning and locking mechanisms, the structure is complex, the operation is inconvenient, time and labor are wasted, and the sewing efficiency of the sewing machine is not improved.
In order to solve the technical problem, the utility model provides a machine shuttle subassembly of sewing machine, including shuttle cover and rotating shuttle, the rotating shuttle includes outer shuttle frame with sewing machine lower shaft coupling and locates the interior shuttle frame in the outer shuttle frame, interior shuttle frame has an inner chamber that is used for installing the shuttle cover, shuttle cover side is equipped with a locating piece, be equipped with the constant head tank that matches with the locating piece on the interior shuttle frame;
the bottom of the inner cavity is provided with a first connecting piece, the bottom of the shuttle sleeve is provided with a second connecting piece, and the shuttle sleeve is detachably connected with the inner shuttle frame through the first connecting piece and the second connecting piece.
Further preferably, the positioning groove is a V-shaped opening groove arranged at the upper part of the inner shuttle frame.
Further preferably, the first connecting piece and the second connecting piece are magnets which can attract and separate from each other.
Further preferably, the inner cavity of the inner shuttle frame is provided as a coreless inner cavity.
Further preferably, the bobbin case comprises a rotating case, a bottom plate, an upper cover plate and a thread pressing plate, wherein the bottom plate and the upper cover plate are detachably connected to the bottom and the top of the rotating case respectively and jointly define a thread cavity for containing a thread ball;
the wire pressing plate is arranged on the upper cover plate and covered above the wire passing groove, and a wire adjusting mechanism used for adjusting the tightness degree of a wire at the front end of the wire passing groove is arranged in the wire passing groove.
Further preferably, the wire passing groove comprises a wire adjusting groove section, and the wire adjusting groove section is connected with the wire outlet groove;
the upper cover plate is provided with a mounting hole, the line adjusting mechanism is arranged in the mounting hole, the line adjusting mechanism comprises a line pressing shaft and an adjusting screw, the adjusting screw is connected with the rear end of the line pressing shaft, the front end of the line pressing shaft extends into the line adjusting groove section through the mounting hole, and a line passing gap is formed between the front end of the line pressing shaft and the inner wall of the line adjusting groove section.
Further preferably, an elastic element is further arranged between the wire pressing shaft and the adjusting screw.
Further preferably, the lower end of the tension plate is provided with a plurality of wire guiding columns at intervals along the direction of the wire passing groove, and the wire passing groove is provided with assembling holes corresponding to the wire guiding columns.
Further preferably, the upper cover plate is provided with a locking structure which is connected and fastened with the rotary sleeve, the locking structure comprises a plurality of hooks arranged at the upper end of the rotary sleeve and clamping grooves which are arranged on the upper cover plate and matched with the hooks, and the hooks are arranged at intervals along the circumferential direction of the rotary sleeve.
Further preferably, the upper cover plate is provided with a positioning structure connected and positioned with the rotary sleeve, the positioning structure comprises an elastic column, a positioning hole formed in the rotary sleeve and a mounting groove formed in the upper cover plate, one end of the elastic column is arranged in the mounting groove, and the other end of the elastic column is movably buckled and hung in the positioning hole.
Further preferably, the center of the upper end surface of the bottom plate gradually spreads towards the outer edge of the bottom plate to form a plurality of annular protrusions arranged at intervals, and/or the center of the lower end surface of the upper cover plate gradually spreads towards the outer edge of the upper cover plate to form a plurality of annular protrusions arranged at intervals.
Further preferably, the inner wall of the outer shuttle frame is provided with a guide groove arranged along the circumferential direction of the outer shuttle frame, the outer circumferential wall of the inner shuttle frame is provided with a guide rail arranged along the circumferential direction of the inner shuttle frame and matched with the guide groove, and the guide rail comprises a guide protrusion arranged on the inner shuttle frame and a beryllium copper layer coated on the guide protrusion.
Further preferably, a sewage draining groove is formed in the guide rail and is formed in the beryllium copper layer.
Further preferably, the bottom of the inner shuttle frame is provided with a wire inclined plane for guiding the upper wire to slide out.
The embodiment of the utility model provides a sewing machine's machine shuttle subassembly compares with prior art, and its beneficial effect lies in:
the machine shuttle component of the sewing machine of the embodiment of the utility model comprises a shuttle sleeve and a rotating shuttle, wherein a positioning block is arranged at the side part of the shuttle sleeve, a positioning groove matched with the positioning block is arranged on an inner shuttle frame, meanwhile, a first connecting piece is arranged at the bottom of an inner cavity, a second connecting piece is arranged at the bottom of the shuttle sleeve, the shuttle sleeve is detachably connected through the first connecting piece and the second connecting piece, when the machine shuttle component is installed, after the positioning is carried out only through one positioning block between the shuttle sleeve and the inner shuttle frame of the rotating shuttle, the shuttle sleeve is put into the inner shuttle frame, the first connecting piece inside the inner cavity and the second connecting piece at the bottom of the shuttle sleeve are connected and fixed, because the first connecting piece and the second connecting piece are arranged at the bottom of the inner cavity and the shuttle sleeve, the increase of the volume of the shuttle sleeve and the inner shuttle frame can be avoided, the integrity of the machine shuttle component is ensured, and only one positioning structure needs to, the operation is simple, the use is convenient, the time and the labor are saved, and the sewing efficiency of the sewing machine is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a shuttle assembly of a sewing machine according to an embodiment of the present invention;
FIG. 2 is an exploded view of the shuttle assembly of the sewing machine according to the embodiment of the present invention;
fig. 3 is a schematic structural view of a shuttle sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic sectional view taken along line A-A in FIG. 3;
fig. 5 is a schematic structural diagram of an upper cover plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a wire pressing plate according to an embodiment of the present invention;
fig. 7 is a schematic bottom structure view of the shuttle sleeve according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a rotary hook according to an embodiment of the present invention;
fig. 9 is a schematic bottom structure view of the inner shuttle frame according to the embodiment of the present invention;
fig. 10 is a schematic diagram of a state of the shuttle sleeve bonding according to an embodiment of the present invention.
In the figure, 10, the shuttle sleeve; 20. a wire adjusting mechanism; 30. a wire pressing plate; 40. coiling a bobbin; 50. a coil; 60. a rotating shuttle; 60a, an outer shuttle frame; 60b, an inner shuttle frame; 101. a rotating sleeve; 102. a base plate; 103. an upper cover plate; 104. a wire lumen; 105. a wire hole; 106. a wire passing groove; 107. an outlet groove; 108. mounting holes; 109. an assembly hole; 110. an elastic column; 111. positioning holes; 112. mounting grooves; 113. a handle; 114. a limiting block; 115. an avoidance groove; 116. a hook is clamped; 117. a card slot; 118. a connecting portion; 119. an annular projection; 120. a through-hole column; 121. positioning blocks; 122. a second connecting member; 201. a wire adjusting groove section; 202. a wire pressing shaft; 203. adjusting screws; 204. an elastic member; 301. a wire guide post; 601. a guide groove; 602. an inner cavity; 603. a guide rail; 604. a guide projection; 605. a beryllium copper layer; 606. a sewage draining groove; 607. a wire slope; 608. a first connecting member; 609. positioning a groove; 610. and (7) flattening the surface.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 10, a machine shuttle assembly of a sewing machine according to a preferred embodiment of the present invention includes a shuttle sleeve 10 and a rotating shuttle 60, the rotating shuttle 60 includes an outer shuttle frame 60a connected to a lower shaft of the sewing machine and an inner shuttle frame 60b disposed in the outer shuttle frame 60a, the inner shuttle frame 60b has an inner cavity 602 for mounting the shuttle sleeve 10, a positioning block 121 is disposed at a side portion of the shuttle sleeve 10, and a positioning groove 609 matched with the positioning block 121 is disposed on the inner shuttle frame 60 b; the bottom of the inner cavity 602 is provided with a first connecting piece 608, the bottom of the shuttle sleeve 10 is provided with a second connecting piece 122, and the shuttle sleeve 10 is detachably connected with the inner shuttle frame 60b through the first connecting piece 608 and the second connecting piece 122.
By arranging a locating block 121 at the side part of the shuttle sleeve 10, arranging a locating groove 609 matched with the locating block 121 on the inner shuttle frame 60b, arranging a first connecting piece 608 at the bottom of the inner cavity 602, arranging a second connecting piece 122 at the bottom of the shuttle sleeve 10, and detachably connecting the shuttle sleeve 10 through the first connecting piece 608 and the second connecting piece 122, based on this, when in installation, after the shuttle sleeve 10 and the inner shuttle frame 60b of the rotating shuttle 60 are located through one locating block 121, the shuttle sleeve 10 is put into the inner shuttle frame 60b, and is fixedly connected through the first connecting piece 608 inside the inner cavity 602 and the second connecting piece 122 at the bottom of the shuttle sleeve 10, because the first connecting piece 608 and the second connecting piece 122 are arranged at the bottom of the inner cavity 602 and the shuttle sleeve 10, the volume increase of the shuttle sleeve 10 and the inner shuttle frame 60b can be avoided, the integrity of the shuttle assembly is ensured, and only one locating structure needs to be adjusted when in installation and disassembly, the operation is simple, the use is convenient, the time and the labor are saved, and the sewing efficiency of the sewing machine is greatly improved.
Preferably, the first connector 608 and the second connector 122 are magnets that can be attracted and separated from each other, and the detachable connection between the inner shuttle frame 60b and the shuttle sleeve 10 is achieved through the magnets, so that the structure is simple, the connection effect is stable, and the operator can be prompted whether to be installed in place due to the pause and frustration feeling when the magnets are attracted, and the operation is convenient.
Further, the positioning groove 609 is a V-shaped opening groove arranged at the upper part of the inner shuttle frame 60b, and the size of the notch of the V-shaped opening groove is larger than that of the groove bottom, so that the shuttle sleeve 10 can be smoothly clamped into the positioning groove 609 when being installed, and the operation is simple and convenient.
In the embodiment, the inner cavity 602 of the inner shuttle frame 60b is set as the inner cavity 602 without a mandrel, that is, the thread coil is directly installed in the thread cavity of the shuttle sleeve 10, the central tap of the thread coil replaces the mandrel in the inner shuttle frame 60b, because no mandrel rotates in the inner shuttle frame 60b, in the sewing process, the phenomenon that the mandrel continuously supplies thread due to inertial rotation after the rotation of the rotating shuttle 60 is stopped can be prevented, and the length of the thread end after sewing is increased, and meanwhile, the phenomenon that the bird nest occurs during sewing to influence the aesthetic property and the integrity of the sewing cloth can be avoided, moreover, because the mandrel is omitted in the inner shuttle frame 60b, the thread capacity of the thread cavity of the shuttle sleeve 10 is greatly increased, the thread changing times in the sewing process are reduced, the sewing quality is ensured, and the sewing work efficiency is improved.
In this embodiment, the bobbin case 10 includes a rotary case 101, a base plate 102, an upper cover plate 103, and a tension plate 30, the base plate 102 and the upper cover plate 103 being detachably coupled to the bottom and the top of the rotary case 101, respectively, and together defining a thread chamber 104 for accommodating the thread ball 50; the upper cover plate 103 is respectively provided with a wire hole 105, a wire passing groove 106 and a wire outlet groove 107, generally, the wire hole 105 is arranged in the middle of the upper cover plate 103, the wire outlet groove 107 is arranged on the side of the upper cover plate 103, the wire hole 105 is communicated with the wire cavity 104, the wire outlet groove 107 is arranged on the side of the rotary sleeve 101, the wire passing groove 106 is used for connecting the wire hole 105 with the wire outlet groove 107, the wire pressing plate 30 is arranged on the upper cover plate 103 and covers the upper side of the wire passing groove 106, and the wire passing groove 106 is internally provided with a wire adjusting mechanism 20 for adjusting the tightness degree of a wire at the front. Specifically, the thread group 50 is accommodated in the thread chamber 104, the thread in the thread chamber 104 comes out from the thread hole 105 and passes through the thread outlet groove 107 along the thread passing groove 106 to be combined with a thread loop of a sewing machine to form a stitch on a sewing material, the thread pressing plate 30 is arranged above the thread passing groove 106, the thread attaching surface is pressed and combined in the thread passing groove 106 through the thread pressing plate 30 to prevent the thread from running upwards in the sewing process, in addition, the thread pressing plate 30 can provide certain pressure for the thread in the thread passing groove 106, so that the tension of the thread is ensured, further, as shown in fig. 4, the thread adjusting mechanism 20 is arranged in the thread passing groove 106, the thread adjusting mechanism 20 is used for adjusting the tightness degree of the thread at the front end of the thread outlet groove 107, and according to the actual sewing situation, the tension of the thread is further adjusted through the thread adjusting mechanism 20 to ensure the consistent tension of the thread going out from the thread outlet groove 107, so that the stability and consistency. The wire-passing groove 106 comprises a wire-adjusting groove section 201, and the wire-adjusting groove section 201 is connected with the wire-outlet groove 107; the upper cover plate 103 is provided with a mounting hole 108, the wire adjusting mechanism 20 is arranged in the mounting hole 108, the wire adjusting mechanism 20 comprises a wire pressing shaft 202 and an adjusting screw 203, the adjusting screw 203 is connected with the rear end of the wire pressing shaft 202, the front end of the wire pressing shaft 202 extends into a wire adjusting groove section 201 from the mounting hole 108, a wire passing gap is arranged between the front end of the wire pressing shaft 202 and the inner wall of the wire adjusting groove section 201, a wire passes through the wire adjusting groove section 201 after coming out from the wire passing groove 106 and passes through the wire passing gap between the front end of the wire pressing shaft 202 and the groove wall of the wire adjusting groove, the distance of the wire passing gap at the front end of the wire pressing shaft 202 is adjusted by adjusting the adjusting screw 203 at the rear end of the wire pressing shaft 202, and then the pressure of the front end of the wire pressing shaft 202 to the wire is adjusted, and the adjustment process is stable because the wire is adjusted by the wire pressing shaft 202 and the. Preferably, an elastic member 204 is further disposed between the wire pressing shaft 202 and the adjusting screw 203, so as to ensure the smooth wire adjusting process and achieve fine adjustment.
Compared with the conventional routing mode that the thread of the bobbin case needs to be wound on the cover plate and then wound into the thread groove 106 from the upper part of the cover plate, the thread outlet distance of the bobbin case 10 is reduced, so that the friction time between the thread and the bobbin case 10 can be reduced, and the condition that the thread is burred is reduced.
The thread cavity 104 of the bobbin case 10 in the embodiment can be used for completely accommodating the thread ball 50, the thread ball 50 does not need to be installed through a thread core, the thread accommodating amount of the thread cavity 104 is greatly increased, the thread changing frequency in the sewing process is reduced, the sewing work efficiency is improved while the sewing quality is ensured, referring to fig. 10, in the specific operation, the bottom plate 102 and the upper cover plate 103 are fixed on the thread sewing mechanism, the rotary sleeve 101 can be installed after the thread is fully sewed, the structure replaces the traditional thread changing mode of changing the thread core, and the thread capacity of the thread cavity 104 is greatly increased. Furthermore, the middle of the bottom plate 102 is provided with a through hole column 120 for the threading of the bobbin 40, the threading mechanism comprises the threading bobbin 40, when threading, the threading bobbin 40 of the threading mechanism is fixed with the upper cover plate 103 after penetrating through the bottom plate 102, the threading mechanism drives the threading bobbin 40 to rotate to wind the thread on the threading bobbin 40 between the bottom plate 102 and the upper cover plate 103, then the threading bobbin 40 is withdrawn from the bobbin case 10 after the rotary sleeve 101 and the bottom plate 102 are installed, thus, a wireless core in the thread cavity 104 of the bobbin case 10 can be realized, the thread amount of the thread cavity 104 is greatly increased, the sewing efficiency is improved, the through hole column 120 is arranged on the bottom plate 102, on one hand, the threading is convenient for fixing with the threading bobbin 40 of the threading mechanism, on the other hand, the winding of the thread is convenient, in the embodiment, the threading is directly performed in the thread cavity 104 of the bobbin case 10, compared with the existing bobbin case 10 without a mandrel, the threading can be performed for the thread of various materials (the existing bobbin case 10 without a thread mass 50 is directly placed in the thread 104, however, when sewing is performed using a slippery thread such as a nylon thread, the nylon thread is not easily agglomerated due to its smoothness, and the thread in the thread cavity 104 is easily scattered and knotted), and thus the adaptability is strong. Preferably, the through hole pillar 120 is disposed in a circular truncated cone shape, so as to reduce the volume of the wire cavity 104 occupied by the through hole pillar 120 and increase the wire capacity of the wire cavity 104, and meanwhile, in the initial wire bonding state, the through hole pillar 120 disposed in a circular truncated cone shape enables the wire to be better attached to the through hole pillar 120, thereby ensuring the wire bonding quality.
In order to ensure that the thread can smoothly pass through the thread passing groove 106 after coming out of the thread hole 105, a plurality of thread guiding columns 301 are arranged at intervals at the lower end of the thread pressing plate 30 along the direction of the thread passing groove 106, assembling holes 109 corresponding to the thread guiding columns 301 are arranged in the thread passing groove 106, the thread is wound on the thread guiding columns 301 along the thread passing groove 106 after coming out of the thread cavity 104, the thread can be prevented from being knotted in the thread passing groove 106 under the guiding action of the thread guiding columns 301, the smoothness of the thread conveying process is ensured, the stability and the neatness of stitches on sewing materials are further ensured, the assembling holes 109 corresponding to the thread guiding columns 301 are arranged in the thread passing groove 106, and therefore, the thread guiding columns 301 can guide the thread and can be installed in the corresponding assembling holes 109 through the thread guiding columns 301 to realize the connection between the thread pressing plate 30 and the body of the shuttle sleeve 10.
In this embodiment, the upper cover plate 103 is provided with a positioning structure connected with the rotary sleeve 101 for positioning, the positioning structure includes an elastic column 110, a positioning hole 111 provided on the rotary sleeve 101 and a mounting groove 112 provided on the upper cover plate 103, one end of the elastic column 110 is provided in the mounting groove 112, and the other end is movably fastened and hung in the positioning hole 111, when the elastic column 110 is mounted, the elastic column 110 passes through the positioning hole 111 on the rotary sleeve 101 for positioning, when the elastic column 110 is dismounted, because the elastic column 110 has elasticity, the elastic column 110 is compressed towards the mounting groove 112, so that the elastic column is dismounted after being separated from the positioning hole 111 of the rotary sleeve 101, the structure is simple, the operation is convenient, the quick mounting and dismounting can be realized, the sewing efficiency is further improved, in order to adjust the elastic column 110 by operation, a handle 113 is provided on the elastic column 110, a limit block 114 is provided on the, the limiting block 114 can be used for limiting the adjustment distance of the elastic column 110, so as to prevent the elastic column 110 from falling off from the installation groove 112, and the handle 113 is used for adjusting the assembly or the separation of the elastic column 110 and the positioning hole 111, so as to realize the disassembly and the assembly between the upper cover plate 103 and the rotating sleeve 101.
In order to ensure the connection stability between the upper cover plate 103 and the rotary sleeve 101, a locking structure which is connected and fastened with the rotary sleeve 101 is arranged on the upper cover plate 103, the locking structure comprises a plurality of hooks 116 which are arranged at the upper end of the rotary sleeve 101 and clamping grooves 117 which are arranged on the upper cover plate 103 and matched with the hooks 116, the hooks 116 are arranged at intervals along the circumferential direction of the rotary sleeve 101, after the upper cover plate 103 and the rotary sleeve 101 are positioned, the hooks 116 on the rotary sleeve 101 are hooked in the corresponding clamping grooves 117 to fix the upper cover plate 103 and the rotary sleeve 101, and the hooks 116 and the clamping grooves 117 are connected, so that the upper cover plate 103 and the rotary sleeve 101 can be detachably connected, and during installation and disassembly, the lower rotary sleeve 101 only needs to be slightly rotated, and the hooks 116 and the clamping grooves 117 are mutually buckled or separated. In this embodiment, the bottom edge of the rotary sleeve 101 extends inwards to form the connecting portion 118, the outer edge of the lower end of the bottom plate 102 is lapped on the connecting portion 118, after the wire is fully marked by the wire marking mechanism, the rotary sleeve 101 is directly sleeved on the bottom plate 102 and the upper cover plate 103 to be positioned and locked, the operation is simple, and the large wire capacity of the wire cavity 104 can be ensured.
In the sewing process, because the bottom thread needs to be matched with a needle to quickly supply the thread, in order to prevent the bottom thread from being knotted or scattered in the thread cavity 104 when being quickly pulled out, the center of the upper end surface of the bottom plate 102 gradually diffuses towards the outer edge of the bottom plate 102 to form a plurality of annular bulges 119 arranged at intervals, on one hand, each annular bulge 119 can form resistance to the thread to avoid the thread from being knotted, and simultaneously can play a certain guiding role for the thread, so that the thread can be supplied according to the direction of the annular bulges 119 to avoid the scattered thread or the scattered thread, and the sewing quality is improved.
In this embodiment, the inner wall of the outer bobbin 60a is provided with a guide groove 601 arranged along the circumferential direction, the outer circumferential wall of the inner bobbin 60b is provided with a guide rail 603 arranged along the circumferential direction and matched with the guide groove 601, the guide rail 603 comprises a guide protrusion 604 arranged on the inner bobbin 60b and a beryllium copper layer 605 coated on the guide protrusion 604, the guide protrusion 604 is provided with the beryllium copper layer 605, the outer bobbin 60a rotates to drive the guide rail 603 to slide in the guide groove 601 in the working process of the rotating shuttle 60, and the beryllium copper layer 605 of the guide rail 603 can prevent the guide groove 601 of the outer bobbin 60a from directly wearing the guide protrusion 604 on the inner bobbin 60b, so as to ensure the service life of the rotating shuttle 60 The shock does not generate sparks and other excellent physical, chemical and mechanical properties, the wear-resisting and noise-reducing effects are good, and the noise generated between the guide rail 603 and the outer shuttle frame 60a can be effectively reduced in the process that the outer shuttle frame 60a rotates along with the lower shaft at a high speed relative to the inner shuttle frame 60 b.
Because the sewing thread generates friction with the rotating shuttle 60 in the using process and a fluffing phenomenon can occur, or because the sewing thread is attached to garbage, in the high-speed rotating process of the outer shuttle frame 60a, the hair bulb or other garbage on the sewing thread can fall on the guide rail 603, so that the phenomenon of thread blocking of the rotating shuttle 60 in the using process can be caused to influence the normal use of the rotating shuttle 60. Preferably, a plurality of blow-down grooves 606 are provided, and each blow-down groove 606 is arranged at intervals and uniformly along the extending direction of the guide rail 603, and generally, the depth of the blow-down groove 606 on the beryllium copper layer 605 is about 0.2 mm.
During sewing, a needle drives an upper thread to penetrate through sewing material to form a thread loop, the side wall of the rotating shuttle 60 is provided with a shuttle point, the shuttle point is hooked into the thread loop and then continuously rotates, one half of the thread loop slides out from the upper part of the shuttle sleeve 10, the other half of the thread loop slides out from the bottom of the inner shuttle frame 60b to sleeve a bottom thread in the middle, then the thread loop is tensioned to form a stitch on the sewing material, as the thread loop needs to slide out from the bottom of the inner shuttle frame 60b, in order to reduce the resistance of the thread and ensure that the thread loop can smoothly slide out from the bottom of the inner shuttle frame 60b, the bottom of the inner shuttle frame 60b is provided with a thread inclined plane 607 for guiding the upper thread to slide out, specifically, the bottom of the inner shuttle frame 60b comprises a flat plane 610 and a plurality of flat thread inclined planes 607 which are connected on the flat plane 610 and outwards diffused by the flat plane 610, and circular arc smooth transitions are, meanwhile, compared with the existing structure that the bottom of the inner shuttle frame 60b is arranged in an open manner and only a cross beam for installing the spindle is transversely arranged at the bottom, the bottom surface of the inner shuttle frame 60b in the embodiment is of a surface structure, so that the structure is strong and large, and the bottom of the inner shuttle frame 60b20 can be prevented from being broken due to insufficient strength.
In summary, the embodiment of the present invention provides a machine shuttle assembly of a sewing machine, including a shuttle sleeve 10 and a rotating shuttle 60, a positioning block 121 is disposed on a side portion of the shuttle sleeve 10, a positioning groove 609 matched with the positioning block 121 is disposed on an inner shuttle frame 60b, meanwhile, a first connecting piece 608 is disposed at a bottom of an inner cavity 602, a second connecting piece 122 is disposed at a bottom of the shuttle sleeve 10, the shuttle sleeve 10 is detachably connected with the second connecting piece 122 through the first connecting piece 608, based on this, when installing, after only one positioning block 121 is needed to be positioned between the shuttle sleeve 10 and the inner shuttle frame 60b of the rotating shuttle 60, the shuttle sleeve 10 is put into the inner shuttle frame 60b, the first connecting piece 608 inside the inner cavity 602 and the second connecting piece 122 at the bottom of the shuttle sleeve 10 are connected and fixed, because the first connecting piece 608 and the second connecting piece 122 are disposed at the bottom of the inner cavity 602 and the shuttle sleeve 10, the increase of the volume of the shuttle sleeve 10 and the inner shuttle frame 60b can be, the integrity of the shuttle assembly is guaranteed, and only one positioning structure needs to be adjusted during installation and disassembly, so that the operation is simple, the use is convenient, the time and the labor are saved, and the sewing efficiency of the sewing machine is greatly improved.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (14)
1. The shuttle assembly of the sewing machine is characterized by comprising a shuttle sleeve and a rotating shuttle, wherein the rotating shuttle comprises an outer shuttle frame connected with a lower shaft of the sewing machine and an inner shuttle frame arranged in the outer shuttle frame;
the bottom of the inner cavity is provided with a first connecting piece, the bottom of the shuttle sleeve is provided with a second connecting piece, and the shuttle sleeve is detachably connected with the inner shuttle frame through the first connecting piece and the second connecting piece.
2. The shuttle assembly of claim 1, wherein the positioning slot is a "V" shaped slot disposed in an upper portion of the inner shuttle frame.
3. The shuttle assembly of claim 2, wherein the first and second coupling members are magnets that are attracted to and separated from each other.
4. The shuttle assembly of claim 3, wherein the inner chamber of the inner shuttle frame is configured as a coreless inner chamber.
5. The shuttle assembly of a sewing machine according to claim 4 wherein said shuttle sleeve comprises a rotating sleeve, a base plate, an upper cover plate and a tension plate, said base plate and said upper cover plate being removably attached to a bottom and a top of said rotating sleeve, respectively, and together defining a thread cavity for receiving a clew;
the wire pressing plate is arranged on the upper cover plate and covered above the wire passing groove, and a wire adjusting mechanism used for adjusting the tightness degree of a wire at the front end of the wire passing groove is arranged in the wire passing groove.
6. The shuttle assembly of a sewing machine according to claim 5, wherein the thread passing groove includes a thread adjusting groove section, the thread adjusting groove section being connected to the thread outlet groove;
the upper cover plate is provided with a mounting hole, the line adjusting mechanism is arranged in the mounting hole, the line adjusting mechanism comprises a line pressing shaft and an adjusting screw, the adjusting screw is connected with the rear end of the line pressing shaft, the front end of the line pressing shaft extends into the line adjusting groove section through the mounting hole, and a line passing gap is formed between the front end of the line pressing shaft and the inner wall of the line adjusting groove section.
7. The shuttle assembly of claim 6, wherein a resilient member is disposed between the bobbin and the adjustment screw.
8. The shuttle assembly of a sewing machine according to claim 7, wherein the lower end of the thread tension plate is provided with a plurality of thread guiding posts at intervals along the direction of the thread passing groove, and the thread passing groove is provided therein with fitting holes corresponding to the thread guiding posts.
9. The shuttle assembly of claim 8, wherein the upper cover plate has a locking structure for fastening with the rotating sleeve, the locking structure includes a plurality of hooks disposed at an upper end of the rotating sleeve and slots disposed on the upper cover plate for matching with the hooks, and the hooks are spaced apart along a circumferential direction of the rotating sleeve.
10. The shuttle assembly of claim 9, wherein the upper cover plate has a positioning structure for engaging and positioning with the rotating sleeve, the positioning structure includes a resilient post, a positioning hole formed in the rotating sleeve, and a mounting slot formed in the upper cover plate, one end of the resilient post is disposed in the mounting slot, and the other end of the resilient post is movably engaged with and suspended in the positioning hole.
11. The shuttle assembly of a sewing machine according to claim 10 wherein the upper end face center of the base plate gradually diverges toward the outer edge of the base plate to form a plurality of spaced annular projections and/or the lower end face center of the upper cover plate gradually diverges toward the outer edge of the upper cover plate to form a plurality of spaced annular projections.
12. The shuttle assembly of a sewing machine according to claim 11, wherein the inner wall of the outer shuttle frame is provided with a guide groove arranged along a circumferential direction thereof, the outer circumferential wall of the inner shuttle frame is provided with a guide rail arranged along a circumferential direction thereof and matched with the guide groove, and the guide rail comprises a guide protrusion arranged on the inner shuttle frame and a beryllium copper layer coated on the guide protrusion.
13. The shuttle assembly of claim 12, wherein the rail includes a dirt drainage groove disposed on the beryllium copper layer.
14. The shuttle assembly for a sewing machine according to claim 13 wherein a bottom of the inner bobbin carriage is provided with a thread guide slope for guiding the upper thread to slide out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827741.1U CN211570997U (en) | 2019-10-28 | 2019-10-28 | Shuttle assembly of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827741.1U CN211570997U (en) | 2019-10-28 | 2019-10-28 | Shuttle assembly of sewing machine |
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| CN211570997U true CN211570997U (en) | 2020-09-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442803A (en) * | 2020-11-27 | 2021-03-05 | 林泽贤 | Rotating shuttle |
| CN112481847A (en) * | 2020-11-27 | 2021-03-12 | 林泽贤 | Shuttle sleeve |
-
2019
- 2019-10-28 CN CN201921827741.1U patent/CN211570997U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442803A (en) * | 2020-11-27 | 2021-03-05 | 林泽贤 | Rotating shuttle |
| CN112481847A (en) * | 2020-11-27 | 2021-03-12 | 林泽贤 | Shuttle sleeve |
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Effective date of registration: 20211119 Address after: 528400 card 7-8, second floor, building 3, Zhongshan Nanyang Garment Co., Ltd., zone 1, Nanlang Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan yinuote Intelligent Technology Co.,Ltd. Address before: 515800 2, No. 8, Lane 12, Goulong north, Shaba village, Shanghua Town, Chenghai District, Shantou City, Guangdong Province Patentee before: Lin Zexian |
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Address after: 528400 No. 7 Card, Floor 2, Building A, Guangfeng Science and Technology Park, No. 1 Industrial Base, Nanlang Street, Zhongshan City, Guangdong Province Patentee after: Zhongshan yinuote Intelligent Technology Co.,Ltd. Address before: 528400 card 7-8, second floor, building 3, Zhongshan Nanyang Garment Co., Ltd., zone 1, Nanlang Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan yinuote Intelligent Technology Co.,Ltd. |
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