CN113293535A - Locking-type chain type interchange integrated winch foot machine - Google Patents
Locking-type chain type interchange integrated winch foot machine Download PDFInfo
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- CN113293535A CN113293535A CN202110705685.XA CN202110705685A CN113293535A CN 113293535 A CN113293535 A CN 113293535A CN 202110705685 A CN202110705685 A CN 202110705685A CN 113293535 A CN113293535 A CN 113293535A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000009958 sewing Methods 0.000 claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims description 30
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
- D05B57/32—Driving-gear for loop takers in chain-stitch sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
- D05B57/36—Driving-gear for loop takers in lock-stitch sewing machines
- D05B57/38—Shuttle drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a lock-type chain type interchange integrated foot rumbling machine, which comprises a transmission mechanism, a thread picking mechanism, a rotating shuttle and curved needle interchange structure, wherein a driven gear is meshed with a lock-type driving gear, a rotating shuttle transmission shaft is arranged on the driven gear, the rotating shuttle is arranged on the rotating shuttle transmission shaft, the driven gear drives the rotating shuttle to rotate, a curved needle connecting rod is connected with a curved needle crank and an eccentric cam, the curved needle crank is sleeved on a curved needle shaft, a curved needle is arranged on a curved needle seat, the curved needle seat is arranged on the curved needle shaft, and the eccentric cam rotates to drive the curved needle to eccentrically rotate; the locking-type take-up lever is arranged at one end of the take-up transmission crank, one end of the take-up connecting rod is arranged on the sewing machine main body, the other end of the take-up connecting rod is fixed with the locking-type take-up lever, the needle rod connecting rod is connected with the other end of the take-up transmission crank and the needle rod joint, and the chain-type take-up lever is arranged on the needle rod joint. The invention has the beneficial effects that: the sewing lock stitch and the chain stitch can be switched, and the switching mode is simple and convenient and easy to operate.
Description
Technical Field
The invention belongs to the field of sewing machine equipment, and particularly relates to a lock-type chain type interchangeable integrated foot rumbling machine.
Background
A foot rumbling machine is a sewing machine for sewing the bottom of a trouser leg, and common stitches for sewing the bottom of the trouser leg are lock stitches and chain stitches. The lock stitch needs the needle luffing motion simultaneously, the rotary motion of lock take-up lever cooperation rotating shuttle is made up, in order to accomplish the stitch, and the chain stitch then needs the needle luffing motion simultaneously, chain take-up lever swing cooperation curved needle reciprocating swing is made up, in order to accomplish the stitch, therefore, prior art generally adopts special lock stitch rumble foot machine or chain stitch rumble foot machine to make corresponding lock stitch or chain stitch, for factory and family's manual workshop, in order to switch over the stitch of suture and prepare two machines, the cost is higher, do not accord with the needs of production life, and if change lock stitch rumble foot machine into chain stitch sewing machine, wherein need to change and dismantle more spare part, the actual operation is comparatively complicated, and need more manpower and the time of spending.
Disclosure of Invention
The invention provides a lock-chain type interchange integrated foot rumbling machine which can be used for switching sewing of lock-chain type stitches and chain type stitches to achieve the purpose of dual purposes, is simple and convenient in switching mode, easy to operate and capable of saving labor and time.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an integrative rumble foot machine is exchanged to locking-type chain, includes drive mechanism, take-up wire mechanism, rotating shuttle and looper exchange the structure, wherein:
the transmission mechanism comprises a driving wheel, a lower shaft, a locking type driving gear, a driven gear, a rotating shuttle transmission shaft, an eccentric cam, a curved needle connecting rod, a curved needle crank and a curved needle shaft, the driving wheel is arranged on the sewing machine main body, the lower shaft is arranged on the driving wheel, the eccentric cam and the locking type driving gear are arranged on the lower shaft, the driven gear is meshed with the locking type driving gear, the rotating shuttle transmission shaft is arranged on the driven gear, and the driven gear drives the rotating shuttle transmission shaft to rotate; the curved needle connecting rod is connected with a curved needle crank and an eccentric cam, the curved needle crank is sleeved on the curved needle shaft, and the eccentric cam rotates to drive the curved needle connecting rod to eccentrically rotate and drive the curved needle shaft to eccentrically rotate.
The thread take-up mechanism comprises a main shaft, a needle rod crank, a thread take-up connecting rod, a locking type thread take-up rod, a chain type thread take-up rod, a thread take-up transmission crank, a needle rod connecting rod, a needle rod joint, a needle rod and a machine needle.
The rotating shuttle and curved needle interchange structure comprises a transmission mechanism, a rotating shuttle, a curved needle seat and a curved needle, wherein the rotating shuttle is arranged on a rotating shuttle transmission shaft, a driven gear drives the rotating shuttle transmission shaft to rotate, and the rotating shuttle rotates along with the rotating shuttle transmission shaft; the curved needle is installed on the curved needle seat, the curved needle seat is installed on the curved needle shaft, and the eccentric cam drives the curved needle shaft to do eccentric rotary motion through the curved needle connecting rod, so that the curved needle is driven to do eccentric rotary motion.
Preferably, the rotating shuttle transmission shaft is provided with a rotating shuttle transmission shaft supporting sleeve and a rotating shuttle transmission shaft retainer ring, the rotating shuttle transmission shaft supporting sleeve can support, fix and protect the rotating shuttle transmission shaft, and the rotating shuttle transmission shaft retainer ring can fix the hole-direction movement of the rotating shuttle transmission shaft.
Preferably, the looper shaft is provided with a looper shaft support sleeve and a looper shaft check ring, the looper shaft support sleeve can support, fix and protect the looper shaft, and the looper shaft check ring can fix the hole direction movement of the looper shaft.
Preferably, the curved needle connecting rod is connected with the eccentric cam through a locking screw, so that the curved needle connecting rod can be firmly fixed and is not easy to fall off.
Preferably, the looper link is provided with a hinge pin inserted into the looper crank for connecting the looper link and the looper crank.
Preferably, a needle protection sheet is arranged between the curved needle and the curved needle seat, and the needle protection sheet can protect the curved needle and avoid the curved needle from colliding with other parts and being damaged in the reciprocating motion process.
Preferably, the other end of the thread take-up link is fixedly mounted on the sewing machine body through a thread take-up link support pin, which can ensure that the end of the thread take-up link is fixedly secured and cannot move and rotate.
Preferably, the take-up link is provided with a fixing pin, the locking-type take-up lever is provided with a fixing hole, the take-up link is inserted into the fixing hole through the fixing pin and connected with the locking-type take-up lever, the other end of the take-up link can be stably connected with the locking-type take-up lever, one end of the take-up link is fixed on the sewing machine main body, the locking-type take-up lever is limited by the take-up link, and when the locking-type take-up lever rotates along with the needle rod crank, the take-up link also rotates along with the needle rod crank, so that the requirement of a locking-type stitch seam is met.
Compared with the prior art, the invention has the following advantages:
the invention integrates the lock-type take-up lever and the chain-type take-up lever on one take-up mechanism, and can complete the exchange from the lock stitch to the chain stitch without switching the take-up mechanism;
when sewing a lock stitch, the main shaft drives the needle rod crank to rotate, the needle rod crank drives the thread take-up transmission crank to rotate, the needle rod transmission crank transmits the motion to the needle rod joint through the needle rod connecting rod, the needle rod joint drives the needle rod and the machine needle to reciprocate up and down, the lock type thread take-up lever rotates around the thread take-up connecting rod under the driving of the thread take-up transmission crank, only the upper thread penetrates through the lock type thread take-up lever to be connected to the machine needle, the lock type driving gear is meshed with the driven gear, the driven gear is connected with the rotating shuttle transmission shaft, the rotating shuttle is arranged on the rotating shuttle transmission shaft, the lower shaft transmits the motion of the driving wheel to the lock type driving gear so as to drive the lock type driving gear to rotate, the lock type driving gear drives the driven gear meshed with the lock type driving gear to rotate, the driven gear drives the rotating shuttle transmission shaft to rotate, the rotating shaft rotates along with the rotating shuttle transmission shaft, and the lock type thread take-up lever moves, the picking upper thread is matched with the rotating shuttle to complete the sewing of the lock stitch;
when chain stitch sewing is needed, the upper thread is only needed to be taken down from a locking type thread take-up lever and is connected to a machine needle through the chain type thread take-up lever, the chain type thread take-up lever swings up and down along with a needle rod joint, then a rotating shuttle is detached, a curved needle seat is installed on a curved needle shaft, the curved needle connecting rod is connected with an eccentric cam and a curved needle crank, the curved needle crank is sleeved on the curved needle shaft, the lower shaft transmits the motion of a driving wheel to the eccentric cam, the eccentric cam drives the curved needle connecting rod to perform eccentric rotation motion, the curved needle connecting rod drives the curved needle shaft to perform reciprocating motion, the curved needle performs reciprocating motion along with the curved needle shaft, the chain type thread take-up lever swings up and down along with the needle rod joint, and the sewing of the chain stitch is completed by matching the reciprocating motion of the curved needle;
in conclusion, the invention provides the lock-type chain type interchange integrated foot rumbling machine which can be used for switching and sewing the lock-type stitches and the chain type stitches to achieve the purpose of dual purposes, only one foot rumbling machine is needed to finish sewing the lock-type stitches and the chain type stitches, the switching mode is simple and convenient, the operation is easy, the lock-type chain type interchange foot rumbling machine is suitable for both factories and household manual workshops, the effect is good, and the labor and time cost can be saved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view showing the overall construction of the assembled rotary hook of the present invention;
FIG. 3 is a schematic view of the overall structure of the assembled looper of the present invention;
FIG. 4 is a schematic view of the mounting structure of the rotating shuttle and the curved needle according to the present invention;
FIG. 5 is a schematic view of the construction of a driving mechanism of the present invention equipped with a rotating shuttle;
FIG. 6 is a schematic structural view of a transmission mechanism equipped with a curved needle according to the present invention;
FIG. 7 is a schematic structural view of a transmission mechanism according to the present invention;
FIG. 8 is a schematic structural view of a thread take-up mechanism according to the present invention;
FIG. 9 is a schematic side view of the thread take-up mechanism according to the present invention;
FIG. 10 is a left side view of the thread take-up mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature; further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-10, fig. 1 is a schematic overall structure of the present invention; fig. 2 is a schematic view showing the overall construction of the assembled rotary hook of the present invention; FIG. 3 is a schematic view of the overall structure of the assembled looper of the present invention; FIG. 4 is a schematic view of the mounting structure of the rotating shuttle and the curved needle according to the present invention; FIG. 5 is a schematic view of the construction of a driving mechanism of the present invention equipped with a rotating shuttle; FIG. 6 is a schematic structural view of a transmission mechanism equipped with a curved needle according to the present invention; FIG. 7 is a schematic structural view of a transmission mechanism according to the present invention; FIG. 8 is a schematic structural view of a thread take-up mechanism according to the present invention; FIG. 9 is a schematic side view of the thread take-up mechanism according to the present invention; FIG. 10 is a left side view of the thread take-up mechanism of the present invention.
The embodiment of the invention provides a lock-type chain type interchangeable integrated foot rumbling machine, wherein the names of parts corresponding to the reference numerals in the figure are as follows: the needle thread take-up device comprises a driving wheel 1, a lower shaft 2, a lock driving gear 3, a driven gear 4, a rotating shuttle transmission shaft 5, an eccentric cam 6, a looper connecting rod 7, a looper crank 8, a looper shaft 9, a rotating shuttle transmission shaft supporting sleeve 10, a rotating shuttle transmission shaft retainer ring 11, a looper shaft supporting sleeve 12, a looper shaft retainer ring 13, a locking screw 14, a hinge pin 15, a rotating shuttle 16, a looper base 17, a looper 18, a needle guard 19, a main shaft 20, a needle rod crank 21, a take-up connecting rod 22, a lock thread take-up lever 23, a chain thread take-up lever 24, a take-up transmission crank 25, a needle rod connecting rod 26, a needle rod joint 27, a needle rod 28, a machine needle 29, a sewing machine body 30, a take-up connecting rod supporting pin 31, a fixing pin 32 and a fixing hole 33.
The utility model provides an integrative rumble foot machine is exchanged to locking-type chain, includes drive mechanism, take-up wire mechanism, rotating shuttle and looper exchange the structure, wherein:
the transmission mechanism comprises a driving wheel 1, a lower shaft 2, a lock type driving gear 3, a driven gear 4, a rotating shuttle transmission shaft 5, an eccentric cam 6, a curved needle connecting rod 7, a curved needle crank 8 and a curved needle shaft 9, wherein the driving wheel 1 is arranged on a sewing machine main body 30, the lower shaft 2 is arranged on the driving wheel 1, the eccentric cam 6 and the lock type driving gear 3 are arranged on the lower shaft 2, the driven gear 4 is meshed with the lock type driving gear 3, the rotating shuttle transmission shaft 5 is arranged on the driven gear 4, and the driven gear 4 drives the rotating shuttle transmission shaft 5 to rotate; the curved needle connecting rod 7 is connected with a curved needle crank 8 and an eccentric cam 6, the curved needle crank 8 is sleeved on a curved needle shaft 9, and the eccentric cam 6 rotates to drive the curved needle connecting rod 7 to eccentrically rotate and drive the curved needle shaft 9 to eccentrically rotate.
The thread take-up mechanism comprises a main shaft 20, a needle rod crank 21, a thread take-up link 22, a lock type thread take-up lever 23, a chain type thread take-up lever 24, a thread take-up transmission crank 25, a needle rod link 26, a needle rod joint 27, a needle rod 28 and a machine needle 29, wherein the main shaft 20 is arranged on a sewing machine main body 30, the needle rod crank 21 is arranged on the main shaft 20, the thread take-up transmission crank 25 is connected with the needle rod crank 21, the lock type thread take-up lever 23 is arranged at one end of the thread take-up transmission crank 25, one end of the thread take-up link 22 is arranged on the sewing machine main body 30, the lock type thread take-up lever 23 is fixed at the other end of the thread take-up link 22, the needle rod link 26 is connected with the other end of the thread take-up transmission crank 25 and the needle rod joint 27, the chain type thread take-up lever 24 is arranged on the needle rod joint 27, the needle rod 28 is arranged on the needle rod joint 27, and the machine needle 29 is arranged on the needle rod 28.
The interchanging structure of the rotating shuttle and the curved needle comprises a transmission mechanism, the rotating shuttle 16, a curved needle seat 17 and a curved needle 18, wherein the rotating shuttle 16 is arranged on a rotating shuttle transmission shaft 5, a driven gear 4 drives the rotating shuttle transmission shaft 5 to rotate, and the rotating shuttle 16 rotates along with the rotating shuttle transmission shaft 5; the curved needle 18 is arranged on the curved needle seat 17, the curved needle seat 17 is arranged on the curved needle shaft 9, and the eccentric cam 6 drives the curved needle shaft 9 to do eccentric rotation motion through the curved needle connecting rod 7, so that the curved needle 18 is driven to do eccentric rotation motion.
The rotating shuttle transmission shaft 5 is provided with a rotating shuttle transmission shaft supporting sleeve 10 and a rotating shuttle transmission shaft retainer ring 11, the rotating shuttle transmission shaft supporting sleeve 10 can support, fix and protect the rotating shuttle transmission shaft 5, and the rotating shuttle transmission shaft retainer ring 11 can fix the hole-direction movement of the rotating shuttle transmission shaft 5.
The looper shaft 9 is provided with a looper shaft support sleeve 12 and a looper shaft retainer ring 13, the looper shaft support sleeve 12 can support, fix and protect the looper shaft 9, and the looper shaft retainer ring 13 can fix the hole direction movement of the looper shaft 9.
The curved needle connecting rod 7 is connected with the eccentric cam 6 through the locking screw 14, so that the curved needle connecting rod 7 can be firmly fixed and is not easy to fall off.
The curved needle connecting rod 7 is provided with a hinge pin 15, and the hinge pin 15 is inserted into the curved needle crank 8 and is used for connecting the curved needle connecting rod 7 and the curved needle crank 8.
A needle protection sheet 19 is arranged between the curved needle 18 and the curved needle seat 17, and the needle protection sheet 19 can protect the curved needle 18 and avoid the damage caused by collision with other parts in the reciprocating motion process.
The other end of the thread take-up link 22 is fixedly mounted on the sewing machine body 30 through the thread take-up link support pin 31, which can ensure that the end of the thread take-up link 22 is fixedly secured and cannot move or rotate.
The thread take-up link 22 is provided with a fixing pin 32, the lock type thread take-up lever 23 is provided with a fixing hole 33, the thread take-up link 22 is inserted into the fixing hole 33 through the fixing pin 32 to be connected with the lock type thread take-up lever 23, the other end of the thread take-up link 22 can be stably connected with the lock type thread take-up lever 23, one end of the thread take-up link 22 is fixed on the sewing machine main body 30, therefore, the lock type thread take-up lever 23 is limited by the thread take-up link 22, when the lock type thread take-up lever 23 rotates along with the needle rod crank 21, the thread take-up link 22 also rotates along with the needle rod crank 21, and the requirement of lock type stitch is met.
The installation method of the invention comprises the following steps:
the driving wheel 1 is arranged on a sewing machine main body 30, a lower shaft 2 is connected with the driving wheel 1 and a lock type driving gear 3, the lock type driving gear 3 is meshed with a driven gear 4, a rotating shuttle transmission shaft 5 is arranged on the driven gear 4, a rotating shuttle 16 is arranged on the rotating shuttle transmission shaft 5, an eccentric cam 6 is arranged on the lock type driving gear 3, one end of a curved needle connecting rod 7 is connected with the eccentric cam 6 through a locking screw 14, the other end of the curved needle connecting rod 7 is arranged on a curved needle crank 8 through a hinge pin 15, the curved needle crank 8 is sleeved on a curved needle shaft 9, a curved needle seat 17 is arranged on the curved needle shaft 9, and a curved needle 18 is arranged on the curved needle seat 17.
The main shaft 20 is installed on the sewing machine main body 30, the needle bar crank 21 is installed on the main shaft 20, the thread take-up transmission crank 25 is installed on the needle bar crank 21, the lock type thread take-up lever 23 is installed at one end of the thread take-up transmission crank 25, one end of the thread take-up link 22 is fixed on the sewing machine main body 30 through a thread take-up link supporting pin 31, the other end of the thread take-up link 22 is fixed on the lock type thread take-up link 22 through a fixing pin 32 and a fixing hole 33 in a matching mode, the needle bar link 26 connects the other end of the thread take-up transmission crank 25 and the needle bar joint 27, the chain type thread take-up lever 24 is installed on the needle bar joint 27, the machine needle 29 is installed on the needle bar 28, and the needle bar 28 is installed on the needle bar joint 27.
Compared with the prior art, the invention has the following advantages:
the invention integrates the lock-type take-up lever 23 and the chain-type take-up lever 24 on one take-up mechanism, and can complete the exchange from lock stitch to chain stitch without switching the take-up mechanism, and the invention also combines the transmission modes of the rotating shuttle 16 and the curved needle 18 on one transmission mechanism, thereby ensuring that the transmission mechanism does not need to be replaced when the structures of the rotating shuttle 16 and the curved needle 18 are switched;
when sewing the lock stitch, the main shaft 20 drives the needle rod crank 21 to rotate, the needle rod crank 21 drives the thread take-up transmission crank 25 to rotate, the needle rod 28 transmission crank transmits the motion to the needle rod connector 27 through the needle rod connecting rod 26, the needle rod connector 27 drives the needle rod 28 and the machine needle 29 to reciprocate up and down, the lock thread take-up rod 23 rotates around the thread take-up connecting rod 22 under the drive of the thread take-up transmission crank 25, only the upper thread passes through the lock thread take-up rod 23 to be connected to the machine needle 29, the lock driving gear 3 is engaged with the driven gear 4, the driven gear 4 is connected with the rotating shuttle transmission shaft 5, the rotating shuttle 16 is arranged on the rotating shuttle transmission shaft 5, the lower shaft 2 transmits the motion of the driving wheel 1 to the driving gear 3 to drive the lock driving gear 3 to rotate, the lock driving gear 3 drives the driven gear 4 engaged with the lock driving gear to rotate, the driven gear 4 drives the rotating shuttle transmission shaft 5 to rotate, the rotating shuttle 16 rotates along with the rotating shuttle transmission shaft 5, the locking type thread take-up rod 23 moves, and the take-up upper thread is matched with the rotating shuttle 16 to finish sewing of a locking type stitch;
when the chain stitch needs to be sewn, the upper thread is only required to be taken down from the locking type thread take-up lever 23, the upper thread penetrates through the chain type thread take-up lever 24 to be connected to a machine needle 29, the chain type thread take-up lever 24 swings up and down along with the needle rod connector 27, then the rotating shuttle 16 is detached, the looper seat 17 is installed on the looper shaft 9, the looper connecting rod 7 is connected with the eccentric cam 6 and the looper crank 8, the looper crank 8 is sleeved on the looper shaft 9, the lower shaft 2 transmits the motion of the driving wheel 1 to the eccentric cam 6, the eccentric cam 6 drives the looper connecting rod 7 to perform eccentric rotation motion, the looper connecting rod 7 drives the looper shaft 9 to perform reciprocating motion, the looper 18 performs reciprocating motion along with the looper shaft 9, the chain type thread take-up lever 24 swings up and down along with the needle rod connector 27, and the take-up upper thread is matched with the reciprocating motion of the looper 18 to finish sewing of the chain stitch;
in conclusion, the invention provides the lock-type chain type interchange integrated foot rumbling machine which can be used for switching and sewing the lock-type stitches and the chain type stitches to achieve the purpose of dual purposes, only one foot rumbling machine is needed to finish sewing the lock-type stitches and the chain type stitches, the switching mode is simple and convenient, the operation is easy, the lock-type chain type interchange foot rumbling machine is suitable for both factories and household manual workshops, the effect is good, and the labor and time cost can be saved.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (8)
1. The utility model provides an integrative rumble foot machine is interchanged to locking-type chain, its characterized in that, exchanges the structure including drive mechanism, take-up mechanism, rotating shuttle and looper, wherein:
the transmission mechanism comprises a driving wheel, a lower shaft, a lock-type driving gear, a driven gear, a rotating shuttle transmission shaft, an eccentric cam, a curved needle connecting rod, a curved needle crank and a curved needle shaft, the driving wheel is arranged on a sewing machine main body, the lower shaft is arranged on the driving wheel, the eccentric cam and the lock-type driving gear are arranged on the lower shaft, the driven gear is meshed with the lock-type driving gear, the rotating shuttle transmission shaft is arranged on the driven gear, and the driven gear drives the rotating shuttle transmission shaft to rotate; the curved needle connecting rod is connected with the curved needle crank and the eccentric cam, the curved needle crank is sleeved on the curved needle shaft, and the eccentric cam rotates to drive the curved needle connecting rod to eccentrically rotate and drive the curved needle shaft to eccentrically rotate.
The take-up mechanism comprises a main shaft, a needle rod crank, a take-up connecting rod, a locking type take-up rod, a chain take-up rod, a take-up transmission crank, a needle rod connecting rod, a needle rod joint, a needle rod and a machine needle, the main shaft is installed on the sewing machine main body, the needle rod crank is installed on the main shaft, the take-up transmission crank is connected with the needle rod crank, the locking type take-up rod is installed at one end of the take-up transmission crank, one end of the take-up connecting rod is installed on the sewing machine main body, the other end of the take-up connecting rod is fixed the locking type take-up rod, the needle rod connecting rod is connected with the other end of the take-up transmission crank and the needle rod joint, the chain take-up rod is installed on the needle rod joint, the needle rod is installed on the needle rod joint, and the machine needle is installed on the needle rod.
The rotating shuttle and curved needle interchange structure comprises the transmission mechanism, a rotating shuttle, a curved needle seat and a curved needle, wherein the rotating shuttle is arranged on a rotating shuttle transmission shaft, the driven gear drives the rotating shuttle transmission shaft to rotate, and the rotating shuttle rotates along with the rotating shuttle transmission shaft; the looper is installed on the looper seat, the looper seat is installed on the looper axle, eccentric cam passes through the looper connecting rod and drives the looper axle and be eccentric rotary motion, thereby drives the looper is eccentric rotary motion.
2. The lock-chain type interchangeable integrated rumble foot machine as claimed in claim 1, wherein said rotating shuttle transmission shaft is provided with a rotating shuttle transmission shaft support sleeve and a rotating shuttle transmission shaft retainer ring.
3. The lock-type chain type interchangeable integrated rumble foot machine as claimed in claim 1, wherein the looper shaft is provided with a looper shaft support sleeve and a looper shaft retainer ring.
4. The lock-chain type interchangeable integrated rumble foot machine of claim 1 wherein said looper link is connected to said eccentric cam by a locking screw.
5. The lock-chain type interchangeable integrated rumble foot machine as claimed in claim 1, wherein said looper link is provided with a hinge pin.
6. The lock-type chain type interchangeable integrated rumble foot machine as claimed in claim 1, wherein a needle protecting sheet is arranged between the curved needle and the curved needle seat.
7. The lock-chain type interchangeable integral rumble foot machine as claimed in claim 1, wherein the other end of said take-up link is fixedly mounted on said sewing machine body by a take-up link support pin.
8. The lock-chain type interchangeable integrated rumble foot machine as claimed in claim 7, wherein said thread take-up link is provided with a fixing pin, said thread take-up lever is provided with a fixing hole, said thread take-up link is inserted into said fixing hole through said fixing pin and connected with said thread take-up lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705685.XA CN113293535A (en) | 2021-06-24 | 2021-06-24 | Locking-type chain type interchange integrated winch foot machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705685.XA CN113293535A (en) | 2021-06-24 | 2021-06-24 | Locking-type chain type interchange integrated winch foot machine |
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| CN113293535A true CN113293535A (en) | 2021-08-24 |
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|---|---|---|---|
| CN202110705685.XA Pending CN113293535A (en) | 2021-06-24 | 2021-06-24 | Locking-type chain type interchange integrated winch foot machine |
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| US3742880A (en) * | 1971-02-22 | 1973-07-03 | Pfaff Ind Masch | Double chain stitch sewing machine having compound feeding means |
| CN101270537A (en) * | 2007-03-22 | 2008-09-24 | 爱信精机株式会社 | Apparatus for adjusting timing of needle and looptaker of sewing machine |
| CN107237061A (en) * | 2017-06-15 | 2017-10-10 | 殷贵怀 | A kind of dual-purpose automatic rumble pin machine of locking-type, chain type for sewing trousers bottom |
| CN206887418U (en) * | 2017-07-09 | 2018-01-16 | 浙江中森缝纫机有限公司 | The rumble pin machine that locking-type is exchanged with chain-type stitch |
| CN208917454U (en) * | 2018-07-03 | 2019-05-31 | 东莞创辉缝纫机有限公司 | Three needle locking-type flat seam machines |
| CN217579309U (en) * | 2021-06-24 | 2022-10-14 | 东莞创辉缝纫机有限公司 | Locking type chain type interchange integrated foot reeling machine |
-
2021
- 2021-06-24 CN CN202110705685.XA patent/CN113293535A/en active Pending
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| US3742880A (en) * | 1971-02-22 | 1973-07-03 | Pfaff Ind Masch | Double chain stitch sewing machine having compound feeding means |
| CN101270537A (en) * | 2007-03-22 | 2008-09-24 | 爱信精机株式会社 | Apparatus for adjusting timing of needle and looptaker of sewing machine |
| CN107237061A (en) * | 2017-06-15 | 2017-10-10 | 殷贵怀 | A kind of dual-purpose automatic rumble pin machine of locking-type, chain type for sewing trousers bottom |
| CN206887418U (en) * | 2017-07-09 | 2018-01-16 | 浙江中森缝纫机有限公司 | The rumble pin machine that locking-type is exchanged with chain-type stitch |
| CN208917454U (en) * | 2018-07-03 | 2019-05-31 | 东莞创辉缝纫机有限公司 | Three needle locking-type flat seam machines |
| CN217579309U (en) * | 2021-06-24 | 2022-10-14 | 东莞创辉缝纫机有限公司 | Locking type chain type interchange integrated foot reeling machine |
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