CN1369589A - Bobbin case cooler of sewing machine - Google Patents
Bobbin case cooler of sewing machine Download PDFInfo
- Publication number
- CN1369589A CN1369589A CN02103574A CN02103574A CN1369589A CN 1369589 A CN1369589 A CN 1369589A CN 02103574 A CN02103574 A CN 02103574A CN 02103574 A CN02103574 A CN 02103574A CN 1369589 A CN1369589 A CN 1369589A
- Authority
- CN
- China
- Prior art keywords
- bobbin case
- shuttle
- air
- bobbin
- sewing machines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
- D05B71/02—Loop-taker lubricating devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/28—Applications of bobbins for storing the lower thread
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B83/00—Guards or like devices for preventing injury to operator
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
To provide a cooling device for shuttle of a sewing machine, which can cool a bobbin case so that a worker does not feel a feeling of physical disorder even when a finger of the worker touch a bobbin case. This cooling device for shuttle of a sewing machine is equipped with a bobbin to house bobbin thread, a bobbin case 56 to house a bobbin, a shuttle 51 with a shuttle body 54 to support the bobbin case 56 and a rotating hook 52 to relatively and rotatably support the shuttle body 54, and air supplying devices 58-62 with vent 59a to blow air against the bobbin case 56 from the lower side of the shuttle, and cooling the bobbin by the air blowed from the vent.
Description
Technical field
The present invention relates to have bobbin case cooling device by the structure of air cooling bobbin case.
Background technology
The bobbin case portion of industrial sewing machine has outer bobbin case, the interior bobbin case that relatively should outer bobbin case be supported, the shuttle sleeve that is supported on this interior bobbin case free to rotately.Shuttle sleeve is supporting the shuttle that bottom line is being taken in its inside.Form rail groove (gathering sill) and orbit portion (direction protrusion) outside on bobbin case and the interior bobbin case respectively, the orbit portion of interior bobbin case is matched with outer bobbin case rail groove.Because the internal mutually bobbin case high speed rotating of outer bobbin case, the sliding part of outer bobbin case and interior bobbin case (rail groove, orbit portion) is also with high-speed slide.Therefore, wearing and tearing, sintering for preventing this sliding part have used bobbin case cooler in the prior art.
Generally be the stream that forms from bobbin case axle inside to sliding part, cool off bobbin case to this stream supplying lubricating oil by pump.Such bobbin case cooling device of prior art is described by Fig. 2.
Make the lower shaft 1 of its high speed rotating by not shown motor, its axially-movable is supported in the thrust pad 3 that is assembled in the lower shaft bearing lining tile 2 with being limited.Central part at this lower shaft 1 has formed at axially extended first oil passage 4, from lower shaft not shown in the figures 1 base end side supplying lubricating oil in this first oil passage 4.
Outer bobbin case 5 is fixed in the leading section of lower shaft 1.Should outer bobbin case 5 have the discoid base portion 6 that is matched with lower shaft 1 leading section periphery, be connected with bobbin case body 10 outside this base portion 6 front roughly cylindrical, base portion 6 has the centre bore 7 that lower shaft 1 leading section can more closely insert.In addition, on base portion 6, formed the radial direction screwed hole 8 that is communicated with centre bore 7 from its outer peripheral face, screw 9 front ends have been crimped on the lower shaft 1, and made outer bobbin case 5 and lower shaft 1 unitary rotation by screw 9 is screwed into.
Outer bobbin case body 10 has at the big substrate 11 of prominent with one heart ratio base portion 6 diameters of establishing of base portion 6 front ends and is connected with roughly cylindrical circular periphery wall 12 in this substrate 11 front; On the inner peripheral surface of this periphery wall 12, forming circular gathering sill 14.
Setting in bobbin case 5 inner spaces 15 outside can relative to should outside the interior bobbin case 16 that rotates of bobbin case 5.Should in bobbin case 16 roughly form cylindrical shape on the whole, in this outer peripheral face of bobbin case 16 be provided with the gathering sill 14 that is matched with outer bobbin case 5 interior and roughly be circular direction protrusion 17 what circumferencial direction can slide relatively.In addition, prominent establishing on interior bobbin case 16 along its axially extended fulcrum post 19.On this fulcrum post 19, adorning the shuttle 18 that is incorporated in the shuttle sleeve 13.Shuttle sleeve 13 heart portion therein has cylinder element 13a, in this cylinder element 13a, insert logical fulcrum post 19 be positioned in the bobbin case 16.
Formed on the substrate 11 of the outer bobbin case body 10 of bobbin case 5 outside and to be communicated with the centre bore 7 diameters circular depressions 20 bigger, on this circular depressions 20, be communicated with second oil passage 21 of extension in the bobbin case 5 outside than centre bore 7.This second oil passage 21 roughly is formed extended at both sides in substrate 11 along the radiation direction, and by the radiation direction path 22 that is communicated with circular depressions 20 be communicated with these radiation direction path 22 outer ends and constitute to the axial passageway 23 that periphery wall 12 roughly forms from substrate 11 with extending axially.
Near the axial passageway 23 arrival gathering sills 14, in this position periphery wall 12, formed the circular filter chamber 24 that is communicated with gathering sill 14 and axial passageway 23 respectively.This filter chamber 24 is opened wide at the outer peripheral face 12a of periphery wall 12, by not shown lid can open and close with its covering.In filter chamber 24, taking in the filter element that will as bonded fabric, be fixed up and form by the fiber that felt etc. constitutes.
On the other hand, at the leading section of lower shaft 1 filter element 26 that the oil mass limiting member that is used to limit oil mass forms is installed.
Lower shaft 1 and outer bobbin case 5 be high speed rotating together, during making by not shown pin, in first oil passage 4 of lower shaft 1 by pump not shown in the figures with high voltage supply lubricating oil.
The bobbin case cooler that replaces this use lubricating oil, the bobbin case cooler that the applicant proposes in the flat 9-192380 of open patent is, the stream of formation from bobbin case axle inside to sliding part can be supplied with the cooling air to this stream from air compressor and cool off bobbin case.
Fig. 3 has represented this conventional example, by not shown motor the lower shaft 1 of its high speed rotating is supported on and is assembled in the thrust pad 3 of lower shaft bearing lining tile 2 (this bearing lining tile 2 remains in base component B).Formed the axial passageway 4 of extending vertically at the central part of this lower shaft 1, this axial passageway 4 in lower shaft 1 front opening, in lower shaft 1 axial centre position obturation cardinal extremity.In addition, on lower shaft 1, worn the radiation direction access 35 that is communicated with axial passageway 4 base end sides and lower shaft 1 outer peripheral face.
Form be communicated with access 35 airtight at the inner peripheral surface of lower shaft bearing lining tile 2 and be circular endless groove 36; In addition, in this lower shaft bearing lining tile 2, form the air that is communicated with endless groove 36 at lower shaft bearing lining tile 2 one end face openings and importing road 37.On the other hand, set air compressor 38 in the outside of lower shaft 1, in the middle of the blast pipe 39 of this air compressor 38, clamped the electromagnetic valve 40 of one of a valve member example of the cooling air quantity delivered of supplying with from air compressor 38 as control as one of a cooling air feeder example.In addition, connect the air that is used for to lower shaft bearing lining tile 2 in the downstream of this electromagnetic valve 40 and importing the air hose 41 that the cooling air of the amount of being controlled by electromagnetic valve 40 is supplied with on road 37; The leading section of this air hose 41 is connected on the connector 42 of the opening that is installed on air importing road 37.Blast pipe 39, air hose 41, connector 42, air importing road 37, endless groove 36 have constituted with access 35 will supply with the path of cool air of the axial passageway 4 of lower shaft 1 from the cooling air of air compressor 38.
In addition, the such control device 43 of air compressor 38 and electromagnetic valve 40 and the CPU that carries out the various controls of Sewing machines is connected, and waits the cooling air volume of controlling the axial passageway 4 of supplying with lower shaft 1 by the control signal from this control device 43 according to Sewing machines rotating speed and environment temperature.
The outer bobbin case 5 that is fixed in lower shaft 1 leading section is different with the outer bobbin case of Fig. 2, and radiation direction path 22, axial passageway 23 are not that 1 but 2 roughly are located along the same line and are connected respectively, and other structures are roughly the same with Fig. 2.In addition, interior bobbin case 16, shuttle sleeve 13 also have same structure with Fig. 2 with shuttle 18.
The front end of each axial passageway 23 arrive gathering sill 14 near, in this position periphery wall 12, formed respectively the aerojet chamber 24 that is communicated with axial passageway 23 with gathering sill 14.The cooling air of supplying with by axial passageway 4, radiation direction path 22 and axial passageway 32 etc. from these each aerojet chambers 24 sprays by the direction protrusion 17 of gathering sill 14 inside bobbin cases 16.
Interior bobbin case 16 limits its rotation by interior bobbin case pressing plate 44.
Bottom illustrates the effect of the bobbin case cooler that is formed by previous constructions.
When driving Sewing machines, control signal corresponding to the rotating speed of Sewing machines and environment temperature etc. outputs to air compressor 38 and electromagnetic valve 40 from control device 43,38 driven whiles of air compressor, electromagnetic valve 40 apertures are adjusted, corresponding to the cooling air of the amount of Sewing machines rotating speed and environment temperature etc. by blast pipe 39, air hose 41, connector 42, air imports road 37, endless groove 36 and access 35 are supplied in the axial passageway 4 of lower shaft 1, by radiation direction path 22 and axial passageway 23 etc., 24 direction protrusions 17 by gathering sill 14 inside bobbin cases 16 spray the cooling air from the aerojet chamber from this axial passageway 4.
Thereby the gathering sill 14 of the outer bobbin case 5 that slips mutually by driving Sewing machines is suppressed with the heating of the direction protrusion 17 of interior bobbin case 16.
Summary of the invention
When the bottom line consumption of shuttle 18, surplus must be taken off shuttle sleeve 13 from interior bobbin case 16 seldom the time in other words, replaces with new shuttle.When carrying out this replacing operation, the operator draws back the bar 13b of shuttle sleeve 13, pulls out shuttle sleeve 13 from interior bobbin case in this state.Thereby operator's finger then must touch shuttle sleeve 13.Under the situation of above-mentioned such bobbin case cooler, promptly allow to prevent the wearing and tearing and the sintering of the sliding part (gathering sill 14 and direction protrusion 17) of outer bobbin case 5 and interior bobbin case 16, but owing to do not have cooling effect at shuttle sleeve 13 side surfaces, when operator's finger touches shuttle sleeve 13, even can not scald, also can stimulate to produce unplessantness displeasure by instantaneous heat.Particularly under the situation about bobbin case cooling being used with the throttling of lubricating oil quantity delivered or under the situation to the operation of continuous running Sewing machines, regular meeting produces high thermostimulation for the quality that improves sewings.
Therefore, the objective of the invention is to, even provide operator's finger to touch the Sewing machines bobbin case cooling device that shuttle sleeve can not be upset yet, produce the cooled off shuttle sleeve of unplessantness displeasure.
According to the present invention, have by the interior bobbin case of the shuttle of taking in bottom line, the shuttle sleeve of taking in aforementioned shuttle, the aforementioned shuttle sleeve of supporting, support rotatably aforementioned in the bobbin case that constitutes of the outer bobbin case of bobbin case and the Sewing machines bobbin case cooling device with the air exhaust air feedway that sprays air, it is characterized in that, the exhaust outlet of aforementioned air feeder is disposed at the bobbin case below, and the air that is brushed by this exhaust outlet cools off shuttle sleeve.
Aforementioned air feeder preferably has by the operated by foot to the Sewing machines pedal to come air is supplied with the valve that carries out switching.
Description of drawings
Fig. 1 is the figure of expression Sewing machines bobbin case cooling device embodiment of the present invention;
Fig. 2 is the figure of expression Sewing machines bobbin case cooling device conventional example;
Fig. 3 is the figure of another conventional example of expression Sewing machines bobbin case cooling device.
The invention specific embodiment
Bottom illustrates bobbin case cooling device embodiment of the present invention based on accompanying drawing 1.Be Sewing machines on the sewing machine base 50 of present embodiment with DP bobbin case 51, it by outer bobbin case 52, be fixed in back veneer 52a on the outer bobbin case 52, be fixed in interior bobbin case pressing plate 52b on the same outer bobbin case 52, be supported on the interior bobbin case 54 on the outer bobbin case 52, the shuttle sleeve 56 that is supported with respect to interior bobbin case 54 is constituted.Establish orbit portion 54a on interior bobbin case 54 its inner peripherys, this orbit portion 54a cooperates with the rail groove 52d of outer bobbin case 52.On the bobbin case 54 time, as shown in Figure 1, the place ahead part (Fig. 1 below part) has been revealed to come out in shuttle sleeve 56 is installed on.
Setting as the air compressor 58 that cools off air feeder in Sewing machines 50 outsides; Clamping mechanical valve 60 on the blast pipe 59 of this air compressor 58, this mechanical valve 60 is used to supply with from the compressed air of air compressor 58 or stops compressed air being supplied with.This mechanical valve 60 is connected in Sewing machines pedal 61, comes the supply of switching compressed air to bobbin case 51 by means of the foot of this pedal 61 being stepped on operation.On the downstream of this mechanical valve 60 blast pipe 59, clamping flow control valve 62.
The exhaust outlet 59a of blast pipe 59 be positioned at bobbin case 51 the below (under), by the compressed air of the amount of flow control valve 62 control from the outside bobbin case 52 side injection airs of this exhaust outlet 59a, air flow shuttle sleeve 56 sides of spraying and contact with shuttle sleeve 56 are cooled off outer bobbin case 52 and shuttle sleeve 56 thus.Even, flow control valve 62 can use by manually controlling the valve that flow forms, also can be to be connected, the control signal of sending by this control device, wait according to the rotating speed of Sewing machines and environment temperature and to control cooling air volume with the control device that Sewing machines is carried out various controls.
As mentioned above, when the exhaust outlet 59a of Fig. 1 blast pipe be disposed at bobbin case 51 under the time because needle thread loop is not had influence.In addition, even from also bobbin case 52 or shuttle sleeve 56 blow air and also can obtain effect same outward by the below than bobbin case center of rotation S.
And omit among the figure, the present embodiment bobbin case also can cool off its sliding part by lubricating oil as conventional example.
When the bottom line of shuttle is consumed or its surplus when becoming seldom, must take off shuttle sleeve 56 from interior bobbin case 54, replace with new shuttle.When carrying out this replacing operation, the operator pulls out the bar 56a of shuttle sleeve 56, takes out shuttle sleeve 56 under this state from interior bobbin case 54.The Sewing machines bobbin case cooling device of present embodiment owing to be by operated by foot pedal 61, make compressed air directly blow to shuttle sleeve 56 and cools off shuttle sleeve 56, and operating personnel can wait the operation of changing bottom line under the situation that can not be subjected to thermostimulation at finger.
The needle thread loop that produces in making is owing to form a side relative with exhaust outlet 59a of bobbin case 51, and the compressed air that blows out is blocked by bobbin case 51 to be blown less than on the needle thread loop.Thereby, can not have influence on needle thread loop even spray in making yet.
Equally, the compressed air that comes from exhaust outlet 59a by outside bobbin case 52 block, also blow less than as the rail groove 52d of the outer bobbin case 52 of bobbin case 51 sliding parts and the orbit portion 54a of interior bobbin case 54.Thereby, on the lubricating oil of sliding part can not blow and splash above the needle plate.
During the needle thread passing bobbin case, the compressed air that comes from exhaust outlet 59a blows on the needlework, during owing to threading is to be in line to be affixed to the shuttle sleeve state so can not produce harmful effect.
The invention effect
Bobbin case cooling device of the present invention since have bobbin case with from the air feeder of aforementioned bobbin case below to aforementioned shuttle sleeve injection air, and bobbin case have the interior bobbin case of the shuttle of taking in bottom line, the shuttle sleeve of taking in aforementioned shuttle, the aforementioned shuttle sleeve of supporting, rotatably supporting aforementioned in the outer bobbin case of bobbin case, do not cool off shuttle sleeve so can not influence stitch by air with forming; Load and unload the operator under the situations such as shuttle sleeve, also can not be subjected to thermostimulation even operating personnel's finger touches shuttle sleeve.
Claims (2)
1. Sewing machines bobbin case cooling device, thisly have by the interior bobbin case of the shuttle of taking in bottom line, the shuttle sleeve of taking in aforementioned shuttle, the aforementioned shuttle sleeve of supporting, support rotatably aforementioned in the bobbin case that constitutes of the outer bobbin case of bobbin case and the Sewing machines bobbin case cooling device with the air exhaust air feedway that sprays air, it is characterized in that, the exhaust outlet of aforementioned air feeder is disposed at the bobbin case below, by cooling off shuttle sleeve by this exhaust outlet injection air.
2. the Sewing machines bobbin case cooling device of recording and narrating by claim 1 is characterized in that, the operated by foot that aforementioned air feeder has by the Sewing machines pedal makes air supply with the valve of switching.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34168/2001 | 2001-02-09 | ||
| JP2001034168A JP2002233683A (en) | 2001-02-09 | 2001-02-09 | Cooling device for shuttle of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369589A true CN1369589A (en) | 2002-09-18 |
| CN1170972C CN1170972C (en) | 2004-10-13 |
Family
ID=18897825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021035741A Expired - Fee Related CN1170972C (en) | 2001-02-09 | 2002-02-07 | Bobbin case cooler of sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2002233683A (en) |
| KR (1) | KR100754117B1 (en) |
| CN (1) | CN1170972C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058923B (en) * | 2006-04-19 | 2011-10-05 | 兄弟工业株式会社 | Keyhole sawing mechine |
| CN1966801B (en) * | 2005-11-18 | 2011-11-16 | 兄弟工业株式会社 | Sewing machine |
| CN101333739B (en) * | 2007-06-29 | 2012-05-23 | 兄弟工业株式会社 | Cooling device for sewing machine |
| CN103103701A (en) * | 2011-11-11 | 2013-05-15 | 顾飞龙 | sewing machine component cooling cleaning method |
| CN110670261A (en) * | 2019-11-15 | 2020-01-10 | 杰克缝纫机股份有限公司 | Oil cooling system of sewing machine and sewing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2928077C2 (en) * | 1979-07-12 | 1981-04-23 | Pfaff Industriemaschinen GmbH, 6750 Kaiserlautern | Sewing machine with a device for lubricating the hook |
| US4480565A (en) * | 1981-11-06 | 1984-11-06 | Union Special Corporation | Sewing machine needle cooler |
| JPS6345265Y2 (en) * | 1984-10-19 | 1988-11-24 | ||
| JPH09192380A (en) * | 1996-01-19 | 1997-07-29 | Juki Corp | Shuttle cooling device of sewing machine |
| JPH11253683A (en) * | 1998-03-12 | 1999-09-21 | Juki Corp | Method and device for feeding oil to machine |
-
2001
- 2001-02-09 JP JP2001034168A patent/JP2002233683A/en active Pending
-
2002
- 2002-02-07 CN CNB021035741A patent/CN1170972C/en not_active Expired - Fee Related
- 2002-02-08 KR KR1020020007385A patent/KR100754117B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966801B (en) * | 2005-11-18 | 2011-11-16 | 兄弟工业株式会社 | Sewing machine |
| CN101058923B (en) * | 2006-04-19 | 2011-10-05 | 兄弟工业株式会社 | Keyhole sawing mechine |
| CN101333739B (en) * | 2007-06-29 | 2012-05-23 | 兄弟工业株式会社 | Cooling device for sewing machine |
| CN103103701A (en) * | 2011-11-11 | 2013-05-15 | 顾飞龙 | sewing machine component cooling cleaning method |
| CN110670261A (en) * | 2019-11-15 | 2020-01-10 | 杰克缝纫机股份有限公司 | Oil cooling system of sewing machine and sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002233683A (en) | 2002-08-20 |
| KR20020067969A (en) | 2002-08-24 |
| KR100754117B1 (en) | 2007-08-30 |
| CN1170972C (en) | 2004-10-13 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041013 Termination date: 20120207 |