CN109487451B - High-capacity rotating shuttle with oil storage cavity and oil supply mechanism comprising rotating shuttle - Google Patents
High-capacity rotating shuttle with oil storage cavity and oil supply mechanism comprising rotating shuttle Download PDFInfo
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- CN109487451B CN109487451B CN201811361929.1A CN201811361929A CN109487451B CN 109487451 B CN109487451 B CN 109487451B CN 201811361929 A CN201811361929 A CN 201811361929A CN 109487451 B CN109487451 B CN 109487451B
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- shuttle
- oil
- bobbin case
- race
- connecting shaft
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
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- 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
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
- D05B71/02—Loop-taker lubricating devices
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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to textile equipment and discloses a high-capacity rotating shuttle with an oil storage cavity and an oil supply mechanism comprising the rotating shuttle. Wherein the top of the bobbin case is lower than the lower edge of the gun handle groove; the head of the shuttle race and the head of the moon ring are overlapped along the arc part of the outer side wall of the shuttle race to form a seal; a gap is arranged between the tail part of the shuttle race and the tail part of the moon ring, and the arc angle formed by the shuttle race head and the tail part of the moon ring is 190-200 degrees; the height of the middle section arc with the radian of 93-100 degrees on the moon ring is higher than the head and the tail of the moon ring, and the radian of the head of the moon ring is 22-30 degrees. An oil storage cavity is arranged at the bottom of the shuttle bed. The invention aims at improving, optimizing and solving the problem of using the high-capacity embroidery rotating shuttle, solving the problem of using effect of the high-capacity rotating shuttle on the basis of increasing the capacity, prolonging the service life and improving the quality stability of products.
Description
Technical Field
The invention relates to the field of textile equipment, in particular to a high-capacity rotating shuttle with an oil storage cavity and an oil supply mechanism comprising the rotating shuttle.
Background
The capacity of the rotating shuttle on the existing market is generally 1 time, 1.6 times and 2 times, the rotating shuttle is mature to be used on an embroidery machine, and although the rotating shuttle with the capacity of 4 times is always used on the market, like the prior patent (CN 205934369U) of the applicant, the production efficiency of equipment can be directly improved on the premise of doubling the capacity. But the market share of the product is still not high at present, and the main reason is that some adverse problems occur in practical use, which are as follows:
firstly, the capacity of the rotating shuttle is increased, so that the friction force of the rotating shuttle is directly increased;
secondly, the capacity of the rotary shuttle is increased, the belly of the whole shuttle rack is increased (the appearance structure of the shuttle rack is increased), the length of thread wound on the shuttle rack is increased, and the thread quantity cannot be completely matched with the thread quantity required by the existing embroidery machine in the market;
thirdly, all the rotating shuttles have common defects, when the threads with different specifications and materials are adopted, the upper threads on the crochet needles of the shuttle bed head are unsmooth, the sewing and weaving effect of some threads is good, the effect is not good when one thread is changed, and the like;
fourthly, the rotating shuttle capacity is increased, the shuttle peg is increased, the weight is increased, the sliding friction force is increased, and the using effect is influenced.
The rotating shuttle is a heart on the embroidery machine, the working health and the effect of the rotating shuttle are stable and directly relate to the production efficiency and the using effect of the embroidery machine, although the applicant increases the capacity of the rotating shuttle to 4 times, the difficulty of the rotating shuttle with large capacity is overcome, partial market share exists in the current market, the problem which can exist in the current rotating shuttle with large capacity is the problem which is urgently to be solved, and only the rotating shuttle with 4 times of the large capacity of the applicant can have a place in the market.
Disclosure of Invention
In order to solve the technical problem, the invention provides a high-capacity rotating shuttle with an oil storage cavity and an oil supply mechanism comprising the rotating shuttle. On the basis of the large-capacity rotating shuttle produced by the applicant, the invention aims at improving and optimally solving the problem in use of the large-capacity embroidery rotating shuttle, solves the problem of the using effect of the large-capacity rotating shuttle on the basis of capacity increase, and improves the service life and the quality stability of products. In addition, the oil storage cavity is designed at the bottom of the shuttle race, and the shuttle race is matched with the oil supply mechanism, so that oil can be uniformly supplied according to requirements under the condition of not interrupting the operation of the rotating shuttle, and the service life of the rotating shuttle is prolonged. In addition, the oil supply is directionally supplied to the guide rail groove, so that the embroidery threads are not polluted, and the quality stability of the embroidery machine product can be ensured.
The specific technical scheme of the invention is as follows: a high-capacity rotating shuttle with an oil storage cavity comprises a bottom thread adjusting bobbin case, a bobbin case cover plate, a bobbin case bottom plate, a bobbin case, a bobbin frame, a bobbin bed, a crescent, a needle and a bobbin case; the bobbin case and the moon ring are surrounded and wrapped on the outer side wall of the shuttle race, the top of the bobbin case is higher than the top of the moon ring, the shuttle frame is fixed in the shuttle race and can rotate relative to the shuttle race, the shuttle peg is arranged in the shuttle frame, the top of the shuttle peg is arranged on the shuttle case cover, the bobbin case bottom plate, the bobbin case adjusting bobbin case, the bobbin case cover plate and the bobbin case bottom plate are sequentially fixed on the top of the shuttle case from top to bottom, a gun handle groove is formed in the top of the outer side wall of the shuttle frame, the needle penetrates through the gun handle groove in the working process, and a shuttle race head is arranged on the top of the outer side wall of the shuttle race, close.
The top of the bobbin case is lower than the lower edge of the gun handle groove, and preferably ranges from 0.2 mm to 0.4 mm.
The head of the shuttle race and the head of the moon ring are overlapped along the arc part of the outer side wall of the shuttle race to form a seal.
A gap is arranged between the tail part of the shuttle race and the tail part of the moon ring, preferably 0.3-0.5mm, and the arc angle formed by the shuttle race head and the tail part of the moon ring is 190-.
The height of the middle section arc of the crescent with the radian of 93-100 degrees (preferably 95-97 degrees) is higher than the head and the tail of the crescent (still lower than the bobbin case), and the radian of the head of the crescent is 22-30 degrees, preferably 26 degrees.
The invention has the following technical effects:
as the large-capacity rotating shuttle is adopted, the team of the invention finds that after the capacity of the rotating shuttle is increased, the belly of the whole shuttle frame is increased (the appearance structure of the shuttle frame is increased), the length of thread wound on the shuttle frame is increased, and the thread quantity can not be completely matched with the thread quantity required by the existing embroidery machine in the market. Therefore, the solution provided by the inventor is to optimize and improve the structures of the bobbin case and the crescent to adjust the thread amount and the problem of thread throwing after the thread is lengthened, and change the thread passing mode of the bottom thread to the thread passing mode on the bobbin case.
Optimizing point one: in the prior art, the height of the bobbin case is higher (as shown in figure 5), the height of the bobbin case is reduced and optimized, the highest position of the bobbin case is reduced to the position of the lower edge of the gun handle groove, the height can enable the upper thread to be hooked on the shuttle race and move around the shuttle race, the upper thread on the front face of the shuttle race can be placed on the shuttle race, the upper thread can smoothly slide on the shuttle race when the shuttle race rotates, the height of the bobbin case can be reduced, the upper thread on the front face and the lower face can be prevented from being pulled too tightly when the upper thread on the front face and the lower face slide back and forth on the bobbin case, under the condition of a certain thread amount, the higher the bobbin case is, the tighter the threads on the two sides can be pulled, the upper thread slides up along the upper edge of the bobbin case, one section of the upper thread on the front face and the rear face is tightly close to each other when the highest point of the bobbin case is reached, the two thread parts. The highest position of the shuttle shell is higher than that of the shuttle frame, and when the upper thread rotates around the shuttle frame, the needle hole position of the needle plate and the upper thread wound on the shuttle frame can be bent into hard bends to limit the sliding of the upper thread on the shuttle frame. Experiments prove that the height of the bobbin case is reduced, so that the upper threads on the bobbin case can not be pulled very tightly, and the phenomenon that the upper threads are partially overlapped and pulled apart can not occur; and the upper thread can slide smoothly at the highest position of the bobbin case and can better slide on the bobbin case.
And (5) optimizing point two: in the prior art, a gap is arranged between the bobbin case head and the crescent head (as shown in figure 7), one side of the bobbin case head is lengthened along the circular arc structure of the bobbin case and is overlapped with the crescent part, so that the shuttle race is rotated to a certain angle, the upper thread is thrown out when the upper thread leaves from the head of the shuttle race, the thrown upper thread is blocked in the bobbin case by the bobbin case after the lengthening is optimized, the upper thread does not fall off in a mess when the bobbin case is moved in a normal circular arc, and the purposes of normally throwing and taking up the upper thread each time are achieved.
And (3) optimizing point three: the method is characterized in that the tail part of the crescent moon ring is lengthened, the tail part of the shuttle race opposite to the tail part of the crescent moon ring is shortened, a reasonable gap is kept between the tail part of the crescent moon ring and the tail part of the shuttle race, the angle between the shuttle race head and the tail part of the crescent moon ring is 190 plus 200 degrees (preferably 192-194 degrees), the angle between the shuttle race head and the crescent moon ring before optimization is 178-180 degrees (as shown in figure 9), the upper thread at the back of the shuttle frame is tensioned in advance, the space between the shuttle frame at the back and the shuttle race is enlarged, the structure is optimized, the shuttle race head hooks the upper thread to a certain angle, the upper thread wound on the shuttle frame enables the upper thread wound on the back of the shuttle frame to not touch the shuttle race when the bottom point of the shuttle frame, the upper thread is not interfered by the shuttle race to form a hard bend, the section is a smooth straight line, the upper thread can better slide on the shuttle frame when the shuttle race continues to rotate, the upper thread is prevented. When the upper thread moves to the highest point from the peach below the shuttle frame (the angle between the head of the shuttle frame and the needle is 158-160 degrees), the crescent ring starts to be heightened at the moment, the thread climbs towards the inclined plane on the crescent ring and can provide a pulling force for the upper thread, although the thread is pulled more tightly at the moment, the jumper spring can adjust the force at the moment, the sliding track of the upper thread on the shuttle frame is adjusted under the interference of external force, the upper thread can slide to the highest point of the shuttle frame more smoothly, the angle of the circular arc of the heightened part of the plane on the circular arc of the crescent ring is about 95-97 degrees, the moving track of the upper thread on the shuttle frame can be adjusted better at the heightened crescent ring, the moving track is attached to the shuttle frame to move, and the thread throwing is smoother. The month circle in the prior art is not raised as shown in fig. 11 and 13.
In conclusion, the bobbin case height is reduced, the bobbin case head is lengthened, the moon ring tail is lengthened, and the moon ring local height is heightened, and the 4 positions are cooperatively optimized, so that the sliding track of the upper thread on the bobbin bracket is adjusted by external force.
Preferably, the circumferential surface of the bobbin case is provided with a thread passing position, the top edge of the thread passing position is of a concave inclined plane structure, and the bottom edge of the thread passing position is of a concave inclined plane structure; the middle position of the bobbin case corresponding to the thickness direction of the bobbin is provided with a U-shaped groove.
The bobbin case of the large-capacity rotating shuttle is enlarged in volume, so that the capacity of the bobbin is enlarged, and the capacity of the bobbin thread is enlarged, in the prior art, the bobbin case is arranged in the bobbin frame, the bobbin case is arranged in the bobbin case, the wall thicknesses of the bobbin case and the bobbin frame occupy larger space, the larger the occupied volume is, the capacity cannot be enlarged according to the structure, the bobbin case and the bobbin frame share one circle under the premise of ensuring the strength, the wall thickness of the bobbin case is removed, the bobbin case and the bobbin frame respectively use the wall thicknesses of half circles, the bobbin frame and the bobbin case are matched by using a proper gap, the bobbin thread is changed to the bobbin case to pass the thread, so that the bobbin thread moves more stably and more smoothly, 4 inclined planes are designed at the thread passing position, so that the bobbin thread can be conveniently and smoothly placed at the bobbin case position, before optimization is carried out (as shown in figure 17, the bottom edge and the top edge of the thread passing position are both planes), the thread is difficult to find the position, the bobbin case has the advantages that the long time is needed, the efficiency is influenced, the guide effect is achieved after the inclined plane structure is designed, the bobbin case can be placed at the fixed position without looking at the bobbin case, and the production efficiency is improved. The U-shaped groove is designed on the bobbin case, so that the thread between the bobbin and the bobbin case can move freely in the U-shaped groove, the position of the thread can be automatically adjusted along with the size of the bobbin coil, the transition thread of the bobbin and the bobbin case is always at the most reasonable position, the function of automatically adjusting the position is achieved, the stable output of the bobbin thread on the bobbin case is achieved, and the consistency of the bobbin thread is ensured.
In other aspects, the team of the invention finds that all the rotating shuttles have the same common fault in the research process, namely that when threads with different specifications and materials are used, the upper threads on the crochet needles of the shuttle bed head are unsmooth, the sewing effect of some threads is good, the effect is not good when one thread is changed, and the like. Therefore, the solution is to optimize the structure of the needle protection position of the rotating shuttle frame, optimize and improve the problem of the hook line of the rotating shuttle, and optimize the invention of the needle protection position of the shuttle frame (applicable to all rotating shuttles):
the first scheme is as follows: the outermost end of the gun handle groove extends to the position above the bobbin case side wall along the radial direction of the bobbin case and does not exceed the plane of the bobbin case outer side wall.
And a needle protection inclined plane is arranged below the needle and the gun handle groove on the shuttle frame, and the distance between the outermost end of the needle protection inclined plane in the radial direction of the shuttle frame and the outermost end of the gun handle groove is 3-3.5 mm.
In the first scheme, the gun handle groove is heightened towards the needle withdrawing movement direction (the heightening in the prior art is shown in figure 19), the needle is added to a reasonable gap matched with the shuttle race, when the needle returns to a certain angle, the upper thread becomes loose, an arc coil can be generated on the needle groove, the heightened gun handle groove can protect the loose thread close to one side of the gun handle groove when the needle is withdrawn, the whole coil moves towards the other side, the arc at one side of the hook thread is more circular and full, the shuttle race head can better hook the upper thread on the needle, the thread is always kept in a reasonable state and position, and the phenomena of hook thread branching, fuzzing, hooking and the like are avoided. The bottom surface design has the needle protection inclined plane structure to raise this needle protection inclined plane to a take the altitude, the needle protection position is nearer from the needle, and the needle is gone down at every turn, can both protect the needle in advance, makes the needle stable in advance, reduces needle deformation and broken needle phenomenon.
Scheme II: a needle protection inclined plane is arranged below the needle and the gun handle groove on the shuttle frame, two needle protection convex ribs parallel to the needle direction are arranged on the needle protection inclined plane, the distance between the two needle protection convex ribs is 1.6-2mm, and the height of the needle protection convex rib is 1/4-1/2 of the diameter of the needle.
In scheme two: set up the protruding muscle of needle guard on the needle guard inclined plane, the protruding muscle of needle guard remains suitable clearance with the needle, get back to certain angle when the needle, the facial suture becomes lax, can produce the circular arc coil on the needle groove, the protruding muscle of needle guard of the left and right sides plays the effect of circular arc coil on the needle guard, make the coil remain reasonable state and position throughout, let the circular arc of crochet hook one side more full, let the shuttle bed head can hook the facial suture on the needle better, avoid appearing the crochet hook branching, the fluff, phenomenons such as snag. The bottom surface in the middle of the convex ribs of the needle protection on the two sides is still in a needle protection inclined surface structure, the needle protection inclined surface is raised to a certain height (matched with a shuttle bed), the needle protection position is closer to the needle, and the needle can be protected in advance every time the needle goes down, so that the needle is stable in advance, and the phenomena of needle deformation and needle breakage are reduced.
Preferably, the shuttle frame and the shuttle peg are in rolling connection through a shuttle peg bearing.
In the research process of the invention, the team discovers that the bobbin is enlarged along with the increase of the capacity of the rotating shuttle, the weight of the rotating shuttle is increased, the sliding friction force of the rotating shuttle is increased, and the use effect is influenced. Therefore, the solution is to optimize the friction mode of the bobbin and the bobbin case, optimize the original sliding friction into rolling friction, and install a bobbin bearing between the bobbin case and the bobbin case, so as to reduce the friction force generated by the increase of the response capacity and improve the use effect. The bobbin bearing is arranged on the bobbin case and the bobbin, so that the original sliding friction of the bobbin case and the bobbin is changed into rolling friction, and the movement is more uniform and stable. The problem that the bobbin thread is not clamped continuously when the bobbin is rotated when a bearing is not installed originally is solved, the thread outlet tightness of the bobbin thread is different, embroidered patterns are uneven, the quality is seriously influenced, and the bobbin thread can be directly pulled off in serious cases. After the bearing is added, the stability of the bottom wire outlet cannot be influenced no matter the size of the coil, the bottom wire can be used up smoothly, the coil cannot be small, and the pulling force is increased, so that the bottom wire cannot be used up smoothly. And the capacity is increased, the weight is increased, if the force of the bottom thread outlet can be obviously influenced in a sliding and rotating mode, the force can be obviously reduced when the rolling friction is optimized, the stability of the bottom thread outlet can be adjusted through the bobbin case, and the size of the outlet force can be completely controlled.
The patent with the grant publication number of 202323385U discloses an automatic oiling structure of a rotating shuttle box of a high-speed computerized embroidery machine, wherein a round hole is arranged between an oil storage tank of the rotating shuttle box and the wall of the rotating shuttle box, the round hole is connected with an oil nipple, and an oil passing hole is arranged between the oil storage tank and a mounting hole of a rotating shuttle shaft sleeve. The oil supply device can supply oil to the rotating shuttle. However, the technical scheme has the following defects: 1. the oil supply is only to supply oil to the whole shuttle race from the bottom of the shuttle race, so that the embroidery thread is polluted; 2. the shuttle race does not have the oil storage function, and the shuttle race must be frequently refueled, so that the refueling frequency is high, and the shuttle race is not convenient enough; 3. the demands of the rotating shuttle on lubricating oil are different under different rotating speeds, in the technical scheme, the oil demand of the rotating shuttle cannot be dynamically judged in real time, and can only be manually and continuously adjusted by experience, and the method has hysteresis. For this reason, we have optimized the structure of the shuttle bed.
The shuttle race comprises a shuttle race base body, an oil storage cavity is arranged at the bottom of the shuttle race base body, and an oil sealing cover plate is covered at an opening at the top of the oil storage cavity; the top edge of the side wall of the shuttle race base body is provided with a guide rail groove, and the side wall of the shuttle race base body is internally provided with an oil way through hole for communicating the oil storage cavity with the guide rail groove.
According to the invention, the oil storage cavity is designed at the bottom of the shuttle race, and the shuttle race is matched with the oil supply mechanism, so that oil can be uniformly supplied according to requirements under the condition of not interrupting the operation of the rotating shuttle, and the service life of the rotating shuttle is prolonged. In addition, the oil supply is directionally supplied to the guide rail groove, so that the embroidery threads are not polluted, and the quality stability of the embroidery machine product can be ensured; meanwhile, the oil demand of the rotating shuttle can be judged in real time, when the rotating speed of the rotating shuttle is high, the oil supply is large, and when the rotating speed is low, the oil supply is small.
The reason for this is that: an oil storage cavity is formed at the bottom (tower) of the shuttle race base body and is sealed by an oil sealing cover plate, then an oil passage through hole which is communicated with the oil storage cavity and the guide rail groove is formed in the side wall of the shuttle race base body, so that oil can be accurately added to the guide rail groove when being supplied (in the prior art, an oil filling hole is formed at the bottom of the shuttle race and is directly communicated with the interior of the shuttle race instead of being wound to the guide rail groove from the side wall). In addition, this oil storage chamber can save lubricating oil, adds once oil and can use for a long time, reduces and refuels the number of times.
Most skillfully, because the oil is supplied through the oil passage through hole on the side wall of the shuttle race body, the oil in the oil storage cavity is thrown away by the centrifugal force generated when the shuttle race rotates, and the higher the rotating speed is, the larger the real-time oil supply amount is (generally speaking, the faster the rotating speed of the rotating shuttle is, the larger the abrasion is, and the larger the demand on lubricating oil is), so the invention can realize the oil supply according to the requirement only by the centrifugal force without monitoring or judging the real-time oil demand of the rotating shuttle deliberately, and has low cost and no additional operation.
Preferably, the oil storage cavity is filled with an oil storage medium. Preferably, the oil storage medium is a sponge.
An oil storage medium with an oil storage function is placed in the oil storage cavity, and proper lubricating oil is added into the oil storage cavity to enable the lubricating oil in the oil storage medium to reach a saturated state; the oil storage medium can play a buffering role, and lubricating oil is prevented from overflowing into the guide rail groove when the oil demand of the rotating shuttle is low.
Preferably, a circle of leakage-proof groove is formed in the edge of an opening in the top of the oil storage cavity, and solidified glue or rubber is filled in the leakage-proof groove; the leakage-proof groove is positioned at the bottom of the oil sealing cover plate.
Substances such as glue or rubber are added into the leakage-proof groove, and then the oil sealing cover plate is covered, so that the oil sealing cover plate and the shuttle race are completely attached together, and the lubricating oil in the oil storage cavity is further ensured not to flow out.
Preferably, the oil sealing cover plate is arranged on the oil storage cavity through a cover plate screw cover.
Preferably, the oil passage through hole is formed by connecting a transverse oil hole and a straight oil hole; the transverse oil hole is arranged along the radial direction of the shuttle bed base body and is communicated with the oil storage cavity; the straight oil hole is arranged along the height direction of the side wall of the shuttle race base body and communicated with the guide rail groove.
Preferably, a cross oil hole cover plate is arranged on the side wall of the shuttle race base body at the joint of the cross oil hole and the oil storage cavity; and a straight oil hole cover plate is arranged on the side wall of the shuttle race base body at the joint of the straight oil hole and the guide rail groove.
The design of the transverse oil hole cover plate and the straight oil hole cover plate is convenient for cleaning after the shuttle race is used for a long time.
An oil supply mechanism comprising the rotating shuttle comprises a shuttle box base, and a first shuttle box transmission gear, a shuttle box gear connecting shaft, a second shuttle box transmission gear, a rotating shuttle gear connecting shaft, a connecting shaft sleeve and the rotating shuttle which are arranged on the shuttle box base.
The first shuttle box transmission gear is fixedly sleeved on the shuttle box gear connecting shaft, the second shuttle box transmission gear is fixedly sleeved on the rotating shuttle gear connecting shaft, the first shuttle box transmission gear is meshed with the second shuttle box transmission gear, and one end of the rotating shuttle gear connecting shaft penetrates through the bottom of the shuttle race and is positioned in the oil storage cavity; the connecting shaft sleeve is movably sleeved on the circumferential surface of the rotating shuttle gear connecting shaft.
And oil supply channels leading to the oil storage cavity are arranged on the shuttle box base, the connecting shaft sleeve and the rotating shuttle gear connecting shaft.
The oil supply channel comprises a shuttle box base oil inlet hole arranged on the shuttle box base, a connecting shaft sleeve oil through hole arranged on the side wall of the connecting shaft sleeve, an oil through blind hole axially arranged in the rotating shuttle gear connecting shaft and a ring groove arranged on the circumferential surface of the rotating shuttle gear connecting shaft; the ring groove is positioned on the periphery of the bottom of the oil through blind hole and is communicated with the oil through blind hole; the shuttle box base oil inlet hole, the connecting shaft sleeve oil through hole and the ring groove are communicated in sequence, and the oil through blind hole is communicated with the oil storage cavity.
The oil supply path of the oil supply mechanism of the invention is as follows: lubricating oil reaches the oil storage cavity along the oil supply channel in sequence from the shuttle box base, the connecting shaft sleeve and the rotating shuttle gear connecting shaft. Wherein, the one end of rotating shuttle gear connecting axle is equipped with logical oil blind hole along the axial, is equipped with the circle groove around the bottom that leads to oil blind hole, because the existence in circle groove, no matter the connected point orientation of logical oil blind hole and circle groove is where (rotating shuttle gear connecting axle is incessantly rotatory, this connected point is not necessarily just in time towards connecting axle sleeve oil through hole), can all realize logical oil through circle groove and connecting axle sleeve oil through hole, consequently can carry out continuous fuel feeding under the condition of uninterrupted shuttle case work, improve work efficiency.
Preferably, the oil supply mechanism further comprises a connecting shaft spacer sleeve, and the connecting shaft spacer sleeve is sleeved on the circumferential surface of the rotating shuttle gear connecting shaft and is positioned between the shuttle race and the rotating shuttle gear connecting shaft.
Compared with the prior art, the invention has the beneficial effects that:
the invention aims at improving and optimally solving the using problem of the high-capacity embroidery rotating shuttle, solves the using effect problem of the high-capacity rotating shuttle on the basis of increasing the capacity, and improves the service life of the rotating shuttle and the quality stability of products.
According to the invention, the oil storage cavity is designed at the bottom of the shuttle race, and the shuttle race is matched with the oil supply mechanism, so that oil can be uniformly supplied according to requirements under the condition of not interrupting the operation of the rotating shuttle, and the service life of the rotating shuttle is prolonged. In addition, the oil supply is directionally supplied to the guide rail groove, so that the embroidery threads are not polluted, and the quality stability of the embroidery machine product can be ensured.
Drawings
FIG. 1 is a schematic view of a rotary shuttle according to the present invention;
FIG. 2 is a schematic illustration of a split structure of the present invention;
FIG. 3 is a schematic view of a configuration of the present invention with the bobbin case lowered;
FIG. 4 is a schematic view of a configuration of the present invention with the bobbin case lowered;
FIG. 5 is a schematic view of a construction of the present invention before the bobbin is lowered;
FIG. 6 is a schematic view of an elongated bobbin case head according to the present invention;
FIG. 7 is a schematic illustration of a configuration of the present invention before the bobbin case head is lengthened;
FIG. 8 is a schematic view of the rear portion of the crescent being lengthened according to the present invention;
FIG. 9 is a schematic view of the end of the crescent before being lengthened according to the present invention;
FIG. 10 is a schematic view of a construction of the present invention after the moon ring is partially raised;
FIG. 11 is a schematic view showing a construction before the moon ring is partially heightened in the present invention;
FIG. 12 is a schematic view of a partially raised moon ring according to the present invention;
FIG. 13 is a schematic view showing a construction before the moon ring is partially heightened in the present invention;
FIG. 14 is a schematic view of a preferred embodiment of the present invention;
FIG. 15 is an enlarged partial schematic view of FIG. 14;
FIG. 16 is a schematic view of a preferred embodiment of the present invention;
FIG. 17 is a schematic illustration of a prior art cross-line location optimization in accordance with the present invention;
FIG. 18 is a schematic view of the extended shank slot and needle guard bevel of the present invention;
FIG. 19 is a schematic view of a configuration of the present invention prior to lengthening of the shank slot and the needle guard bevel;
FIG. 20 is a schematic view of an optimized needle guard rib of the present invention;
FIG. 21 is a schematic view of an optimized needle guard rib of the present invention;
FIG. 22 is a schematic view of an optimized bobbin bearing arrangement according to the present invention;
FIG. 23 is a schematic view of a rotating shuttle race of the present invention;
FIG. 24 is a top plan view of the rotating shuttle race of the present invention;
FIG. 25 is a schematic view of the oil supply mechanism of the present invention;
fig. 26 is a partially enlarged structural schematic view of an oil supply mechanism of the present invention;
fig. 27 is a schematic view showing a structure of a rotating shuttle gear coupling shaft according to the present invention.
Fig. 28 is a partial sectional view of the rotating shuttle gear coupling shaft of the present invention.
The reference signs are: the shuttle race comprises a shuttle race base body 1, an oil storage cavity 2, an oil sealing cover plate 3, a guide rail groove 4, an anti-leakage groove 5, a cover plate screw 6, a transverse oil hole 7, a straight oil hole 8, a transverse oil hole cover plate 9, a straight oil hole cover plate 10, a shuttle box base 11, a first shuttle box transmission gear 12, a shuttle box gear connecting shaft 13, a second shuttle box transmission gear 14, a rotary shuttle gear connecting shaft 15, a connecting shaft sleeve 16, a shuttle box base oil inlet hole 17, a connecting shaft sleeve oil through hole 18, an oil through blind hole 19, a ring groove 20, a connecting shaft spacing sleeve 21, a bottom thread adjusting shuttle shell 100, a shuttle shell cover plate 101, a shuttle shell bottom plate 102, a shuttle shell 103, a shuttle core 104, a shuttle frame 105, a shuttle race 106, a moon ring 107, a needle 108, a shuttle shell 109, a gun handle groove 110, a shuttle race head 112, a thread passing position 113, a lower concave slope structure 114, an upper concave slope structure 115, a U-shaped groove 116, a needle protection slope 117.
Detailed Description
The present invention will be further described with reference to the following examples. The devices, connections, and methods referred to in this disclosure are those known in the art, unless otherwise indicated.
The rotary hook according to the present invention is a further improved and optimized structure based on the prior patent (CN 205934369U), and is the same as the above structure except for the structure described in the present specification.
Example 1
As shown in fig. 1-2: a large capacity rotary hook having an oil reservoir comprises a bobbin thread adjusting bobbin case 100, a bobbin case cover 101, a bobbin case bottom plate 102, a bobbin case 103, a bobbin core 104, a bobbin case 105, a bobbin bed 106, a moon ring 107, a needle 108 and a bobbin case 109. The bobbin case and the moon ring are surrounded and wrapped on the outer side wall of the shuttle race, the top of the bobbin case is higher than the top of the moon ring, the shuttle frame is fixed in the shuttle race and can rotate relative to the shuttle race, the shuttle peg is arranged in the shuttle frame, the top of the shuttle peg is arranged on the shuttle case cover, the bobbin case bottom plate, the bobbin case adjusting bobbin case, the bobbin case cover plate and the bobbin case bottom plate are sequentially fixed on the top of the shuttle case from top to bottom, a gun handle groove 110 is formed in the top of the outer side wall of the shuttle frame, the needle penetrates through the gun handle groove in the working process, and a shuttle race head 112 is arranged on the top of the outer side wall of the shuttle race, close.
The rotating shuttle of the embodiment has the following optimization points:
1. as shown in fig. 3-4, the top of the bobbin case is 0.3mm below the lower edge of the gun handle groove.
2. As shown in fig. 6, the head of the bobbin case overlaps the head of the crescent along the arc part of the outer side wall of the shuttle race (4 mm) to form a closed loop.
3. As shown in fig. 8, a gap of 0.4mm is arranged between the tail of the bobbin case and the tail of the moon ring, and the arc angle formed by the bobbin bed head and the moon ring tail is 193 degrees;
4. as shown in fig. 10 and 12, the height of the middle section arc with the upper arc of 96 degrees of the crescent is higher than the head and the tail of the crescent (still lower than the bobbin skin), and the head arc of the crescent is 26 degrees.
5. As shown in fig. 14 to 16, a thread passing position 113 is provided on the circumferential surface of the bobbin case, the top edge of the thread passing position is a concave inclined plane structure 114, and the bottom edge of the thread passing position is a concave inclined plane structure 115; as shown in fig. 15, the bobbin case is provided with a U-shaped groove 116 at a position corresponding to the middle of the bobbin in the thickness direction.
6-1, as shown in figure 18, the outermost end of the gun handle groove extends to the position above the bobbin case lateral wall along the radial direction of the bobbin case and does not exceed the plane of the bobbin case lateral wall. A needle protection inclined plane 117 is arranged below the needle and the gun handle groove on the shuttle frame, and the distance between the outermost end of the needle protection inclined plane in the radial direction of the shuttle frame and the outermost end of the gun handle groove is 3.3 mm.
6-2, as shown in fig. 20-21, a needle protection inclined plane is arranged below the needle and the gun handle groove on the shuttle frame, two needle protection convex ribs 118 parallel to the needle direction are arranged on the needle protection inclined plane, the distance between the two needle protection convex ribs is 1.8mm, and the height of the needle protection convex rib is 1/3 of the needle diameter.
7. As shown in fig. 22, the bobbin carriage and the bobbin are connected by a bobbin bearing 119 in a rolling manner.
In addition, as shown in fig. 23-25, the structure of the shuttle race of the present invention is schematically illustrated, and the shuttle race comprises a shuttle race base 1, the bottom of the shuttle race base is provided with an oil storage cavity 2, and the oil storage cavity is filled with an oil storage medium (preferably sponge). The edge of the opening at the top of the oil storage cavity is provided with a circle of leakage-proof groove 5, and the leakage-proof groove is filled with solidified glue or rubber. An oil sealing cover plate 3 is covered above the leakage-proof groove through a cover plate screw 6 to seal the oil storage cavity; the top edge of the side wall of the shuttle race base body is provided with a guide rail groove 4, and the side wall of the shuttle race base body is internally provided with an oil way through hole (with the diameter of about 1 mm) for communicating the oil storage cavity and the guide rail groove.
As shown in fig. 25, the oil passage through hole is formed by connecting a horizontal oil hole 7 and a straight oil hole 8; the transverse oil hole is arranged along the radial direction of the shuttle bed base body and is communicated with the oil storage cavity; the straight oil hole is arranged along the height direction of the side wall of the shuttle race base body and communicated with the guide rail groove. A transverse oil hole cover plate 9 is arranged on the side wall of the shuttle race base body at the joint of the transverse oil hole and the oil storage cavity; and a straight oil hole cover plate 10 is arranged on the side wall of the shuttle race base body at the joint of the straight oil hole and the guide rail groove.
Example 2
An oil supply mechanism including the shuttle race of embodiment 1 includes, as shown in fig. 25, a shuttle box base 11, and a first shuttle box transmission gear 12, a shuttle box gear connecting shaft 13, a second shuttle box transmission gear 14, a rotary shuttle gear connecting shaft 15, a connecting shaft sleeve 16, a connecting shaft spacer 21 and the shuttle race mounted on the shuttle box base.
The first shuttle box transmission gear is fixedly sleeved on the shuttle box gear connecting shaft, the second shuttle box transmission gear is fixedly sleeved on the rotating shuttle gear connecting shaft, the first shuttle box transmission gear is meshed with the second shuttle box transmission gear, and one end of the rotating shuttle gear connecting shaft penetrates through the bottom of the rotating bed and is positioned in the oil storage cavity; the connecting shaft sleeve is movably sleeved on the circumferential surface of the rotating shuttle gear connecting shaft, and the connecting shaft is sleeved on the circumferential surface of the rotating shuttle gear connecting shaft in a spacing manner and is positioned between the shuttle race and the rotating shuttle gear connecting shaft.
As shown in fig. 26, the shuttle box base, the connecting sleeve and the rotating shuttle gear connecting shaft are provided with oil supply passages leading to the oil storage chamber. The oil supply channel comprises a shuttle box base oil inlet 17 arranged on the shuttle box base, a connecting shaft sleeve oil through hole 18 arranged on the side wall of the connecting shaft sleeve, an oil through blind hole 19 axially arranged in the rotating shuttle gear connecting shaft and a ring groove 20 arranged on the circumferential surface of the rotating shuttle gear connecting shaft (as shown in figures 27-28); the ring groove is positioned on the periphery of the bottom of the oil through blind hole and is communicated with the oil through blind hole; the shuttle box base oil inlet hole, the connecting shaft sleeve oil through hole and the ring groove are communicated in sequence, and the oil through blind hole is communicated with the oil storage cavity.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A large-capacity rotating shuttle with an oil storage cavity comprises a bottom thread adjusting bobbin case (100), a bobbin case cover plate (101), a bobbin case bottom plate (102), a bobbin case (103), a bobbin (104), a bobbin frame (105), a bobbin bed (106), a crescent (107), a needle (108) and a bobbin case (109); the bobbin case and the moon ring are surrounded and wrapped on the outer side wall of the shuttle race, wherein the top of the bobbin case is higher than the top of the moon ring, the shuttle frame is fixed in the shuttle race and can rotate relative to the shuttle race, the shuttle peg is arranged in the shuttle frame, the top of the shuttle peg is arranged on the shuttle case cover, the bobbin case top is sequentially fixed on the top of the shuttle case by the bottom thread adjusting bobbin case, the bobbin case cover plate and the bobbin case bottom plate from top to bottom, the top of the outer side wall of the shuttle frame is provided with a gun handle groove (110), the needle penetrates through the gun handle groove in the working process, and the top of the outer side wall of the shuttle race is provided with a shuttle race head (112) near the top of the:
the top of the shuttle race is lower than the lower edge of the gun handle groove;
the head of the shuttle race and the head of the moon ring are overlapped along the arc part of the outer side wall of the shuttle race to form a seal;
a gap is arranged between the tail part of the shuttle race and the tail part of the moon ring, and the arc angle formed by the shuttle race head and the tail part of the moon ring is 190-200 degrees;
the height of the middle section arc with the radian of 93-100 degrees on the moon ring is higher than the head and the tail of the moon ring, and the radian of the head of the moon ring is 22-30 degrees;
the shuttle race comprises a shuttle race base body (1), an oil storage cavity (2) is arranged at the bottom of the shuttle race base body, and an oil sealing cover plate (3) is covered at an opening at the top of the oil storage cavity; the top edge of the side wall of the shuttle race base body is provided with a guide rail groove (4), and the side wall of the shuttle race base body is internally provided with an oil way through hole which is communicated with the oil storage cavity and the guide rail groove.
2. The large capacity rotary hook having an oil reserve chamber according to claim 1, wherein a thread passing position (113) is provided on a circumferential surface of said hook housing, a top edge of said thread passing position is a concave slope structure (114), and a bottom edge of said thread passing position is a concave slope structure (115); the middle position of the bobbin case corresponding to the thickness direction of the bobbin core is provided with a U-shaped groove (116).
3. A large capacity rotary shuttle having an oil reserve chamber as claimed in claim 1 wherein the outermost end of said shank groove extends radially of the bobbin case above the outer side wall of the bobbin case and does not exceed the plane of the outer side wall of the bobbin case;
a needle protection inclined plane (117) is arranged below the needle and the gun handle groove on the shuttle frame, and the distance between the outermost end of the needle protection inclined plane in the radial direction of the shuttle frame and the outermost end of the gun handle groove is 3-3.5 mm.
4. A large capacity rotary shuttle having an oil reserve chamber as claimed in claim 1 wherein, a needle protection inclined plane is provided below the needle and the stock groove on said shuttle frame, two needle protection ribs (118) are provided on said needle protection inclined plane in parallel with the needle direction, the spacing between the two needle protection ribs is 1.6-2mm, and the height of the needle protection rib is 1/4-1/2 of the needle diameter.
5. A large capacity rotary hook having an oil reserve chamber according to claim 1, wherein said bobbin frame and said bobbin are connected by a rolling contact via a bobbin bearing (119).
6. A large capacity rotary hook having an oil storage chamber as claimed in claim 1, wherein said oil storage chamber is filled with an oil storage medium.
7. A large capacity rotary hook with an oil storage chamber according to claim 1, wherein a circle of leakage-proof groove (5) is arranged at the edge of the top opening of the oil storage chamber, and the leakage-proof groove is filled with solidified glue or rubber; the leakage-proof groove is positioned at the bottom of the oil sealing cover plate.
8. The large capacity rotary hook having an oil storage chamber according to claim 1, wherein said oil passage through hole is formed by connecting a horizontal oil hole (7) and a vertical oil hole (8); the transverse oil hole is arranged along the radial direction of the shuttle bed base body and is communicated with the oil storage cavity; the straight oil hole is arranged along the height direction of the side wall of the shuttle race base body and communicated with the guide rail groove.
9. A large capacity rotary hook having an oil reserve chamber according to claim 8, wherein a cross oil hole cover plate (9) is provided on a side wall of said hook base at a junction of the cross oil hole and the oil reserve chamber; and a straight oil hole cover plate (10) is arranged on the side wall of the shuttle race base body at the joint of the straight oil hole and the guide rail groove.
10. A combined structure of the rotating shuttle according to any one of claims 1 to 9 and a rotating shuttle oil supplying mechanism, wherein: the rotating shuttle oil supply mechanism comprises a shuttle box base (11), and a first shuttle box transmission gear (12), a shuttle box gear connecting shaft (13), a second shuttle box transmission gear (14), a rotating shuttle gear connecting shaft (15) and a connecting shaft sleeve (16) which are arranged on the shuttle box base;
the first shuttle box transmission gear is fixedly sleeved on the shuttle box gear connecting shaft, the second shuttle box transmission gear is fixedly sleeved on the rotating shuttle gear connecting shaft, the first shuttle box transmission gear is meshed with the second shuttle box transmission gear, and one end of the rotating shuttle gear connecting shaft penetrates through the bottom of the shuttle race and is positioned in the oil storage cavity; the connecting shaft sleeve is movably sleeved on the circumferential surface of the rotating shuttle gear connecting shaft;
an oil supply channel leading to the oil storage cavity is arranged on the shuttle box base, the connecting shaft sleeve and the rotating shuttle gear connecting shaft;
the oil supply channel comprises a shuttle box base oil inlet hole (17) arranged on the shuttle box base, a connecting shaft sleeve oil through hole (18) arranged on the side wall of the connecting shaft sleeve, an oil through blind hole (19) axially arranged in the rotating shuttle gear connecting shaft and a ring groove (20) arranged on the circumferential surface of the rotating shuttle gear connecting shaft; the ring groove is positioned on the periphery of the bottom of the oil through blind hole and is communicated with the oil through blind hole; the shuttle box base oil inlet hole, the connecting shaft sleeve oil through hole and the ring groove are communicated in sequence, and the oil through blind hole is communicated with the oil storage cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361929.1A CN109487451B (en) | 2018-11-15 | 2018-11-15 | High-capacity rotating shuttle with oil storage cavity and oil supply mechanism comprising rotating shuttle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811361929.1A CN109487451B (en) | 2018-11-15 | 2018-11-15 | High-capacity rotating shuttle with oil storage cavity and oil supply mechanism comprising rotating shuttle |
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| CN109487451A CN109487451A (en) | 2019-03-19 |
| CN109487451B true CN109487451B (en) | 2021-01-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111379098B (en) * | 2020-05-08 | 2021-11-30 | 宁波德鹰精密机械有限公司 | Shuttle race and rotating shuttle |
| CN219315243U (en) * | 2022-03-05 | 2023-07-07 | 无锡品益缝纫机有限公司 | Rotating shuttle structure |
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| CN109487451A (en) | 2019-03-19 |
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