CN113802277A - Coreless sewing machine rotating shuttle with external thread supply structure - Google Patents

Coreless sewing machine rotating shuttle with external thread supply structure Download PDF

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Publication number
CN113802277A
CN113802277A CN202111221059.XA CN202111221059A CN113802277A CN 113802277 A CN113802277 A CN 113802277A CN 202111221059 A CN202111221059 A CN 202111221059A CN 113802277 A CN113802277 A CN 113802277A
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CN
China
Prior art keywords
bobbin case
bobbin
thread
sewing machine
coreless
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Pending
Application number
CN202111221059.XA
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Chinese (zh)
Inventor
王梦玲
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111221059.XA priority Critical patent/CN113802277A/en
Publication of CN113802277A publication Critical patent/CN113802277A/en
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/08Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10Shuttles
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/26Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The invention belongs to the field of textile equipment, and particularly relates to a coreless sewing machine rotating shuttle with an external thread supply structure, wherein a bobbin case outer shell is arranged on the upper layer of a bobbin case base, a bobbin case inner shell is arranged inside the bobbin case outer shell, a raised guide ring is fixed on the outer wall of the bobbin case inner shell, a cross frame is arranged on the bottom layer of the bobbin case inner shell, a hollow lead pipe is arranged at the central position of the cross frame, and the bottom of the lead pipe sequentially penetrates through the bobbin case base and the central position of a rotating device; the bobbin thread is characterized in that the bobbin thread is not arranged in the bobbin case, the relative limit of the volume of the bobbin thread is avoided, the bobbin thread is directly a large bobbin thread of an external sewing machine thread, the capacity of the bobbin thread is dozens of times of that of a common bobbin thread and a spherical bobbin thread, the external bobbin thread has no volume limit, and even the large external bobbin thread can be one hundred times of that of the common bobbin thread, so that the capacity of the bobbin thread is greatly improved, the thread changing times in the sewing process are reduced, and the operating efficiency and the quality of a sewn product are improved.

Description

Coreless sewing machine rotating shuttle with external thread supply structure
Technical Field
The invention relates to the field of textile equipment, in particular to a coreless sewing machine rotating shuttle with an external thread supply structure.
Background
The application number CN201310698691.2 discloses a coreless sewing machine rotating shuttle, which comprises a shuttle shell and a shuttle frame, wherein the inner cavity of the shuttle shell is free of a shaft sleeve and a shuttle core, the inner cavity of the shuttle frame is free of a spindle, a thread passing hole is formed in the center of the top of the shuttle shell, a shuttle door bottom plate is arranged on the thread passing hole, a shuttle door cover plate is pivoted on the shuttle door bottom plate, and a thread inlet groove is formed in the shuttle door cover plate; the shuttle door is characterized in that a wire trough is arranged on the shuttle door bottom plate in the circumferential direction of the outer edge of the wire passing hole, the tail end of the wire trough is connected with a wire outlet groove on the shuttle shell, a shuttle skin is arranged on the outer side wall of the shuttle shell at the tail end of the wire outlet groove, and a spring hook is arranged on the shuttle shell near a wire outlet of the shuttle skin. The coreless rotary shuttle replaces a bobbin by a thread group center tap, the thread directly and smoothly bypasses a thread running groove of a bobbin case, a bobbin skin and a spring hook to be sleeved with the upper thread from the thread group center, and no resistance change exists in the middle of the movement process, so that the stability and consistency of stitches can be ensured when ground threads are sewn.
The prior art has the following problems:
the rotary shuttle of the coreless sewing machine replaces the traditional bobbin winding with the thread coil, but the design is incomplete, only the small thread coil wound from the bobbin is expanded into a slightly larger spherical thread coil, but the design is still in the bobbin case, the volume of the final thread coil does not exceed the volume in the bobbin case, the spherical thread coil arranged in the bobbin case needs to be frequently replaced when the coreless sewing machine is used, and the use limitation exists.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the prior art, the invention provides a coreless sewing machine rotating shuttle with an external thread supply structure, which has the characteristics of external thread supply structure and no need of stopping to disassemble a bobbin case to replace a thread coil.
(II) technical scheme
In order to solve the technical problem, the invention provides a coreless sewing machine rotating shuttle with an external thread supply structure, which comprises a bobbin case base and a rotating device, wherein the bobbin case base is formed by splicing a first bobbin case bottom plate and a second bobbin case bottom plate which are symmetrical, the rotating device is arranged below the bobbin case base and comprises a transmission rod and an outer gear which are combined, the transmission rod is connected to the spliced whole of the first bobbin case bottom plate and the second bobbin case bottom plate through a bolt, and teeth are arranged on the outer gear in an array manner;
the bobbin case comprises a bobbin case base and is characterized in that a bobbin case outer shell is installed on the upper layer of the bobbin case base, a bobbin case inner shell is arranged inside the bobbin case outer shell, a raised guide ring is fixed on the outer wall of the bobbin case inner shell, a cross frame is installed on the bottom of the bobbin case inner shell, a hollow lead pipe is installed at the center of the cross frame, and the bottom of the lead pipe penetrates through the bobbin case base and the center of a rotating device in sequence.
Preferably, the transmission rod and the external gear are both hollow structures, and the lead tube penetrates through the end faces of the transmission rod and the external gear to leave a gap.
Preferably, the inner portion of the lead tube is drawn through a sewing thread.
Preferably, the outer wall of the bobbin case inner shell is provided with a convex guide ring, and the guide ring is embedded into a sliding groove formed in the bobbin case outer shell.
Preferably, the inner wall of the inner bobbin case shell is provided with a protruding positioning block, and a through groove is formed in the upper portion of the inner wall of the inner bobbin case shell.
Preferably, the appearance of the inner shell of the shuttle shell is internally provided with a lock shell mechanism, the lock shell mechanism comprises a lock shell table, a lock shell tenon and a lock shell turnover cover, the lock shell table is installed in the appearance of the inner shell of the shuttle shell, the lock shell tenon is placed at the top of the lock shell table, and the top of the lock shell tenon is detachably connected with the lock shell turnover cover.
Preferably, one end of the lock shell tenon is inserted into the inner wall of the shuttle shell inner shell, and a protruding clamping block on the lock shell turnover cover is clamped and fixed with a buckling groove on the lock shell tenon.
The technical scheme of the invention has the following beneficial technical effects:
1. the bobbin thread with the thread coil center tap externally provided with the sewing machine thread is drawn to the inside of the thread guiding pipe, sequentially passes through the rotating device and the center of the bobbin case base, enters the bobbin case inner shell, and when sewing is carried out, the sewing thread head in the bobbin case inner shell is drawn out, so that the sewing operation can be carried out.
2. The rotary shuttle of the coreless sewing machine overcomes the defects of low thread capacity and small thread size of the rotary shuttle of the sewing machine in the prior art, can play a role in ensuring the stable stitch of the bottom thread, removes the traditional bobbin, shuttle shaft and shuttle sleeve structures, overcomes the defect of difference of stitches of the bottom thread sewing caused by unstable elasticity, ensures the stability and consistency of the stitches when the bottom thread is sewn, and improves the sewing effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of an explosive structure according to the present invention;
FIG. 3 is a schematic view of the bobbin case base and the rotating device of the present invention;
FIG. 4 is a schematic view of the inner housing of the bobbin case of the present invention;
fig. 5 is a schematic structural view of the lock case mechanism of the present invention.
Reference numerals:
1. a bobbin case base; 11. a first bobbin case base plate; 12. a second bobbin case base plate; 2. a bobbin case housing; 3. a bobbin case inner shell; 31. a guide ring; 32. a through groove; 33. positioning blocks; 34. a cross frame; 35. a lead tube; 4. a lock case mechanism; 41. a lock case table; 42. a lock case tenon; 43. a lock shell is turned; 5. a rotating device; 51. a transmission rod; 52. and an outer gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-5, the coreless sewing machine rotating shuttle with an external thread supply structure provided by the present invention comprises a bobbin case base 1 and a rotating device 5, wherein the bobbin case base 1 is formed by splicing a first bobbin case base plate 11 and a second bobbin case base plate 12 which are symmetrical, the rotating device 5 is arranged below the bobbin case base 1, the rotating device 5 comprises a transmission rod 51 and an external gear 52 which are combined, the transmission rod 51 is connected to the spliced whole of the first bobbin case base plate 11 and the second bobbin case base plate 12 through a bolt, and teeth are arranged on the external gear 52 in an array manner;
bobbin case outer shell 2 is installed on the upper strata of bobbin case base 1, and bobbin case inner shell 3 is provided with to the inside of bobbin case outer shell 2, and the outer wall of bobbin case inner shell 3 is fixed with bellied guide ring 31, and crossbearer 34 is installed to the bottom of bobbin case inner shell 3, and hollow lead tube 35 is installed to the central point department of crossbearer 34, and the central point department of bobbin case base 1 and rotating device 5 is run through in proper order to the bottom of lead tube 35.
It should be noted that:
1. the outer wall of the bobbin case inner shell 3 is provided with a convex guide ring 31, the guide ring 31 is embedded into a sliding groove formed in the bobbin case outer shell 2, and the bobbin case inner shell 3 rotates along the sliding groove of the bobbin case outer shell 2 through the guide ring 31 on the outer wall.
2. The transmission rod 51 and the external gear 52 are both hollow structures, a gap is left between the end surfaces of the lead pipe 35 penetrating through the transmission rod 51 and the external gear 52, the lead pipe 35 is fixed on the inner shell 3 of the shuttle shell and does not rotate along with the action of the rotating device 5, and the wire supply on the lead pipe 35 and the action of the rotating shuttle are not interfered with each other.
In this embodiment, the bottom thread tapped at the center of the thread ball of the external sewing machine thread is drawn into the interior of the thread guiding tube 35, sequentially passes through the rotating device 5 and the center of the bobbin case base 1, enters the interior of the bobbin case inner case 3, and draws the sewing thread in the bobbin case inner case 3, and when sewing, draws out the sewing thread end in the bobbin case inner case 3, the sewing operation can be carried out, the characteristic lies in that the thread coil is not in the bobbin case, the relative limit of the thread coil volume is not existed, the bottom thread is directly the big thread coil of the external sewing machine thread, the capacity is dozens of times of the common bobbin and the ball-shaped thread coil, because the external thread ball has no volume limitation, even a large external thread ball can be one hundred times of the capacity of the common shuttle peg, therefore, the capacity of the bottom thread is greatly improved, the thread changing times in the sewing process are reduced, the operating efficiency and the sewing product quality are improved, and the efficacy of enterprises is improved.
In another embodiment, the rotary shuttle of the coreless sewing machine overcomes the defects of low thread capacity and small thread size of the rotary shuttle of the sewing machine in the prior art, can play a role in ensuring the stable stitch of the bottom thread, removes the traditional structures of a shuttle core, a shuttle shaft and a shuttle sleeve, overcomes the defect of difference of stitches of the bottom thread sewing caused by unstable elasticity, ensures the stability and consistency of the stitches during the bottom thread sewing, and improves the sewing effect.
Wherein, the appearance intracavity of bobbin case inner shell 3 is provided with lock shell mechanism 4, and lock shell mechanism 4 is including lock shell platform 41, lock shell tenon 42 and lock shell flip 43, and lock shell platform 41 is installed in the appearance intracavity of bobbin case inner shell 3, and lock shell tenon 42 has been placed at the top of lock shell platform 41, and the top of lock shell tenon 42 can be dismantled and be connected with lock shell flip 43.
What needs to be supplemented is: convex locating piece 32 is installed to the inner wall of bobbin case inner shell 3, and the opening block of locking shell platform 41 lateral wall is installed to locating piece 32, carries out the fixed of locking shell platform 41 on bobbin case inner shell 3, and the through-groove 33 that link up is seted up to the inner wall top of bobbin case inner shell 3, and the opening that is located through-groove 33 both sides is used for reducing the holistic weight of rotating shuttle, improves the motion efficiency of rotating shuttle.
In order to make the installation of the lock shell mechanism 4 more stable, further, after the lock shell tenon 42 corresponds to the center hole of the lock shell platform 41, one end of the lock shell tenon 42 is inserted into the inner wall of the shuttle shell inner shell 3, and is clamped and fixed with the buckle slot on the lock shell tenon 42 through the convex clamping block on the lock shell flip 43, so that the lock of the lock shell mechanism 4 on the shuttle shell inner shell 3 is realized, and the bottom thread is led out through the matching of the lock shell platform 41, the lock shell tenon 42 and the center hole on the lock shell flip 43, so that the subsequent surface thread operation is facilitated.
As shown in fig. 3, a rotating device 5 is arranged below the bobbin case base 1, the transmission rod connects two bobbin case base plates with a transmission rod 51 by bolts, the other end of the transmission rod 51 is connected with an external gear 52, the two components form mutual external meshing transmission, a section of shaft without a gear is arranged on the rotating shuttle case, a bearing can be arranged on the shaft, and the shaft is fixedly connected with the sewing machine body through a bearing seat.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (7)

1. The coreless sewing machine rotating shuttle with the external thread supply structure is characterized by comprising a bobbin case base (1) and a rotating device (5), wherein the bobbin case base (1) is formed by splicing a first bobbin case base plate (11) and a second bobbin case base plate (12) which are symmetrical, the rotating device (5) is arranged below the bobbin case base (1), the rotating device (5) comprises a transmission rod (51) and an outer gear (52) which are combined, the transmission rod (51) is connected to the spliced whole of the first bobbin case base plate (11) and the second bobbin case base plate (12) through bolts, and teeth are arranged on the outer gear (52) in an array manner;
bobbin case outer shell (2) are installed on the upper layer of bobbin case base (1), bobbin case inner shell (3) are arranged inside bobbin case outer shell (2), raised guide ring (31) are fixed on the outer wall of bobbin case inner shell (3), transverse frame (34) is installed on the bottom layer of bobbin case inner shell (3), hollow lead pipe (35) is installed at the center position of transverse frame (34), and the bottom of lead pipe (35) penetrates through bobbin case base (1) and the center position of rotating device (5) in sequence.
2. The coreless sewing machine rotary hook with the external thread supply structure according to claim 1, wherein the transmission rod (51) and the external gear (52) are both hollow structures, and the thread lead tube (35) penetrates through end faces of the transmission rod (51) and the external gear (52) to leave a gap.
3. The coreless sewing machine rotary hook of the external thread supply structure according to claim 1, wherein an inner portion of the thread guiding tube (35) is drawn through a sewing thread.
4. The coreless sewing machine rotary hook of the external thread supply structure according to claim 1, wherein a protruding guide ring (31) is installed on an outer wall of the inner bobbin case housing (3), and the guide ring (31) is inserted into a sliding groove formed on the outer bobbin case housing (2).
5. The coreless sewing machine rotary shuttle of the external thread supply structure according to claim 1, wherein a protruding positioning block (32) is installed on an inner wall of the inner bobbin case housing (3), and a through groove (33) is formed above the inner wall of the inner bobbin case housing (3).
6. The coreless sewing machine rotary shuttle of the external thread supply structure according to claim 1, wherein a lock housing mechanism (4) is arranged in the cavity of the inner shuttle housing (3), the lock housing mechanism (4) comprises a lock housing table (41), a lock housing tenon (42) and a lock housing flip cover (43), the lock housing table (41) is installed in the cavity of the inner shuttle housing (3), the lock housing tenon (42) is placed at the top of the lock housing table (41), and the lock housing flip cover (43) is detachably connected to the top of the lock housing tenon (42).
7. The rotary hook of coreless sewing machine with external thread supply structure as claimed in claim 6, wherein one end of said lock housing tenon (42) is inserted into an inner wall of said inner housing (3), and a protruding locking block on said lock housing flip (43) is engaged with a locking groove on said lock housing tenon (42) for fixing.
CN202111221059.XA 2021-10-20 2021-10-20 Coreless sewing machine rotating shuttle with external thread supply structure Pending CN113802277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111221059.XA CN113802277A (en) 2021-10-20 2021-10-20 Coreless sewing machine rotating shuttle with external thread supply structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111221059.XA CN113802277A (en) 2021-10-20 2021-10-20 Coreless sewing machine rotating shuttle with external thread supply structure

Publications (1)

Publication Number Publication Date
CN113802277A true CN113802277A (en) 2021-12-17

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347597B1 (en) * 2000-12-27 2002-02-19 Jung Kuang Chen Flat sewing device without thread bobbins
KR100740523B1 (en) * 2006-06-16 2007-07-18 박중선 Under thread supply device of sewing machine
CN101117756A (en) * 2007-09-07 2008-02-06 王瑞良 Non-shuttle-core device of high-speed lockstitch sewing machine
CN201206199Y (en) * 2008-04-29 2009-03-11 东莞市万江钰兴机械厂 Reciprocating motion mechanism of quilter guide shaft
CN103774351A (en) * 2013-12-19 2014-05-07 东阳市太极精密制造有限公司 Peg-free rotating shuttle of sewing machine
CN204138900U (en) * 2014-09-05 2015-02-04 陈署光 A kind of can the sewing machine shuttle of continuously feeding ground thread
CN105332174A (en) * 2015-11-27 2016-02-17 郑经宝 Shuttle-peg-free device structure for sewing device
CN210066160U (en) * 2019-04-24 2020-02-14 北京延锋北汽汽车内饰件有限公司 Sewing machine shuttle suspension device capable of continuously supplying bottom thread

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347597B1 (en) * 2000-12-27 2002-02-19 Jung Kuang Chen Flat sewing device without thread bobbins
KR100740523B1 (en) * 2006-06-16 2007-07-18 박중선 Under thread supply device of sewing machine
CN101117756A (en) * 2007-09-07 2008-02-06 王瑞良 Non-shuttle-core device of high-speed lockstitch sewing machine
CN201206199Y (en) * 2008-04-29 2009-03-11 东莞市万江钰兴机械厂 Reciprocating motion mechanism of quilter guide shaft
CN103774351A (en) * 2013-12-19 2014-05-07 东阳市太极精密制造有限公司 Peg-free rotating shuttle of sewing machine
CN204138900U (en) * 2014-09-05 2015-02-04 陈署光 A kind of can the sewing machine shuttle of continuously feeding ground thread
CN105332174A (en) * 2015-11-27 2016-02-17 郑经宝 Shuttle-peg-free device structure for sewing device
CN210066160U (en) * 2019-04-24 2020-02-14 北京延锋北汽汽车内饰件有限公司 Sewing machine shuttle suspension device capable of continuously supplying bottom thread

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Application publication date: 20211217

RJ01 Rejection of invention patent application after publication