CN210458574U - Thread ring adjusting mechanism and sewing machine with same - Google Patents

Abstract

The utility model discloses a wire loop adjustment mechanism, include: the wire clamping device mounting plate is used for mounting a wire clamping device and is provided with a first wire passing hole; the wire passing frame is connected with the wire clamping device mounting plate and is provided with a second wire passing hole; the thread picking piece is used for picking up threads when the thread ring is formed so as to adjust the size of the thread ring, the thread picking piece is provided with a thread picking hole, a first thread passing hole, a thread picking hole and a second thread passing hole are used for enabling the threads led out from the thread clamping device to sequentially pass through, the first thread passing hole, the thread picking hole and the second thread passing hole form a triangular structure, and the relative positions of the first thread passing hole, the thread picking hole and the second thread passing hole are adjustable; the thread take-up member has elasticity so that the thread take-up hole moves along with the tension change of the thread when in use to release the thread take-up amount. The wire loop adjusting mechanism can adjust the wire receiving amount of the corresponding wire loops of different cloth materials, so that the different cloth materials have the wire loops with the same size. The utility model also discloses a sewing machine of including above-mentioned wire loop adjustment mechanism.

Description

Thread ring adjusting mechanism and sewing machine with same

Technical Field

The utility model relates to a sewing machine technical field, more specifically say, relate to a wire loop adjustment mechanism. Furthermore, the utility model discloses still relate to a sewing machine including above-mentioned wire loop adjustment mechanism.

Background

In the processing of knitted clothes, flat seaming machines have wide application. The stitches sewed by the flat seaming machine are chain stitches, and the chain stitches are formed by repeatedly sleeving a looper thread and at least one machine needle thread in a sewing material.

For example, in a three-needle four-thread flat seaming machine, three needles and one looper are provided, during sewing, a thread is led out through a thread clamping device, and is led into the needle after passing through a thread taking-up mechanism, when the needle is at the highest point, the thread taking-up mechanism is arranged for paying off, the tension of the thread is small, under the action of cloth friction force, the needle starts to form a thread loop when returning from the lowest point, the thread loop gradually increases along with the returning of the needle, and the looper sequentially passes through the thread loops formed by the three needles to form a three-needle four-thread flat seaming stitch.

It can be understood that different fabrics have different properties, different elasticity and different thickness, resulting in different friction forces between different fabrics and thus different loop sizes when the needle is lifted back.

However, the flat seaming machines in the prior art do not have a thread loop adjusting mechanism, that is, the thread outgoing amount of the thread loop formed by the flat seaming machines is constant, which results in that for some cloth, because the height position of the needle farthest from the looper among three needles is the lowest, when the looper passes through the thread loop formed by the needle at the lowest position, the thread loop is often too large due to too large needle lifting amount, and then the thread loop collapses, finally resulting in needle skipping.

That is, the existing flat seaming machine can form a thread loop with a proper size for some cloth materials, and the formed thread loop is too large to cause needle skipping for other cloth materials. In other words, the existing flat seaming machines are not adaptable to a variety of different fabrics, and it is difficult to form stable loops.

In summary, those skilled in the art need to solve the above-mentioned problems, how to provide a thread loop adjusting mechanism capable of adjusting the size of a thread loop of a flat seaming machine.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a wire loop adjusting mechanism to adjust the wire receiving amount of the wire loop corresponding to different fabrics, so that different fabrics all have the same size of the wire loop.

Another object of the present invention is to provide a sewing machine comprising the above thread loop adjusting mechanism, wherein the thread loop take-up amount is adjustable.

In order to achieve the above object, the present invention provides the following technical solutions:

a wire loop adjustment mechanism comprising:

the wire clamping device mounting plate is used for mounting a wire clamping device and is provided with a first wire passing hole;

the wire passing frame is connected with the wire clamping device mounting plate and is provided with a second wire passing hole;

the thread picking piece is used for picking up threads when the thread ring is formed so as to adjust the size of the thread ring, the thread picking piece is provided with a thread picking hole, the first thread passing hole, the thread picking hole and the second thread passing hole are used for enabling the threads led out from the thread clamp to sequentially pass through, the first thread passing hole, the thread picking hole and the second thread passing hole form a triangular structure, and the relative positions of the first thread passing hole, the thread picking hole and the second thread passing hole are adjustable so as to adjust the thread picking amount of the thread ring corresponding to different fabrics by changing the relative positions of the first thread passing hole, the thread picking hole and; the thread take-up member has elasticity so that the thread take-up hole moves along with the tension change of the suture when in use to release the thread take-up amount.

Preferably, the thread take-up member is arranged on the thread clamping device mounting plate in an adjustable position, so that the position of the thread take-up hole can be adjusted by adjusting the position of the thread take-up member.

Preferably, choose the line spare to be the torsional spring, the one end of torsional spring is for colluding the line end, collude the line end and be equipped with choose the line hole, collude line end position adjustable and locate the thread tension device mounting panel.

Preferably, the wire holder mounting panel is equipped with the first line board of transferring of position adjustable, first line board of transferring sets firmly and is used for setting up the first overlap joint portion of colluding the line end.

Preferably, the first wire adjusting plate is fixedly arranged on the wire holder mounting plate through a first fastening screw, so that the position of the first lap joint part is adjusted by rotating the first wire adjusting plate when the first fastening screw is loosened.

Preferably, the first wire adjusting plate has an eccentric structure, and the first overlapping portion is disposed on the eccentric structure.

Preferably, the first wire adjusting plate is fixedly arranged on the wire clamping device mounting plate through a first fastening screw, and the wire clamping device mounting plate is provided with a strip hole for adjusting the fixing position of the first fastening screw.

Preferably, the other end of the torsion spring is a force adjusting end, the force adjusting end is adjustably arranged on the thread clamping device mounting plate, and the thread picking force applied to the thread by the thread hooking end is adjusted by adjusting the position of the force adjusting end.

Preferably, the thread trapper mounting panel is equipped with the second of position adjustable and transfers the line board, the second is transferred the line board and is set firmly and is used for setting up the second overlap joint portion of accent power end.

The utility model provides a sewing machine, includes the thread trapper, still includes above-mentioned arbitrary loop adjustment mechanism, the thread trapper install in on the thread trapper mounting panel of loop adjustment mechanism, certainly the suture that the thread trapper was drawn forth is followed in proper order the first line hole of crossing of loop adjustment mechanism, is chosen line hole and second and crosses the line hole and passes.

The utility model provides a wire loop adjusting mechanism, through setting up the elastic piece of choosing the line, when forming the wire loop, utilize the piece of choosing the line to withdraw the suture of eedle department a certain amount of thread to reduce the amount of suture that forms the wire loop, make the wire loop have appropriate size, avoid the wire loop too big and collapse, cause the jump needle; and the relative positions of the first thread passing hole, the thread picking hole and the second thread passing hole which form a triangular structure are adjusted to adjust the thread receiving amount of the thread ring corresponding to different fabrics, so that different fabrics have the thread rings with the same size, and the needle skipping phenomenon when different fabrics are sewn is avoided by ensuring the stability of the size of the thread ring.

Meanwhile, when forming stitches, because the thread take-up piece has elasticity, when the tension of the suture at the position of the machine needle is increased, the thread take-up hole can move along with the change of the tension of the suture, so that the amount of the suture which is retracted when forming a thread ring is released, and the required thread outlet amount of sewing is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of a wire loop adjustment mechanism according to an embodiment of the present invention;

FIG. 2 is an assembled schematic view of the wire loop adjustment mechanism of FIG. 1;

FIG. 3 is a schematic view of a suture path in a thread-retrieving state of the wire loop adjustment mechanism of FIG. 1 in use;

FIG. 4 is a schematic view of a prior art sewing machine's stitch path.

The reference numerals in fig. 1 to 4 are as follows:

1 is the thread trapper mounting panel, 11 is first to cross the line hole, 2 is crossed the line frame, 21 is the second and crosses the line hole, 3 is the torsional spring, 31 is for colluding the line end, 311 is for choosing the line hole, 32 is for adjusting the power end, 4 is first accent line board, 41 is first overlap joint portion, 5 is first fastening screw, 6 is second accent line board, 61 is second overlap joint portion, 7 is second fastening screw, 8 is for supporting the cover, 9 is the thread trapper, 01 is the suture.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a wire loop adjustment mechanism to adjust the receipts line volume that different cloth corresponds the wire loop, make different cloth all have the wire loop of equidimension. The other core of the utility model is to provide a sewing machine comprising the above thread ring adjusting mechanism, the thread ring take-up amount of which is adjustable.

Referring to fig. 1-4, fig. 1 is an exploded view of a wire loop adjustment mechanism according to an embodiment of the present invention; FIG. 2 is an assembled schematic view of the wire loop adjustment mechanism of FIG. 1; FIG. 3 is a schematic view of a suture path in a thread-retrieving state of the wire loop adjustment mechanism of FIG. 1 in use; FIG. 4 is a schematic view of a prior art sewing machine's stitch path.

The utility model provides a wire ring adjusting mechanism, which comprises a wire holder mounting plate 1, a wire passing frame 2 and a wire picking piece, wherein the wire holder mounting plate 1 is used for mounting a wire holder 9, and the wire holder mounting plate 1 is provided with a first wire passing hole 11 for a suture 01 led out from the wire holder 9 to pass through; the thread passing frame 2 is connected with the thread clamping device mounting plate 1, and the thread passing frame 2 is provided with a second thread passing hole 21 for a suture thread 01 to pass through; the thread take-up component is used for taking up the thread 01 when the thread ring is formed so as to adjust the size of the thread ring, and is provided with a thread take-up hole 311 for the thread 01 to pass through; the first thread passing hole 11, the thread picking hole 311 and the second thread passing hole 21 form a triangular structure, and when the sewing machine is used, a thread 01 led out from the thread clamp 9 sequentially passes through the first thread passing hole 11, the thread picking hole 311 and the second thread passing hole 21 (as shown in fig. 3), and the thread 01 led out from the second thread passing hole 21 is led into an existing thread picking mechanism on the sewing machine and led out from the thread picking mechanism to a machine needle.

It should be noted that, in order to ensure the smoothness of the movement of the sewing thread 01 during the sewing process, as a preferred embodiment, a triangle formed by the first thread passing hole 11, the thread take-up hole 311, and the second thread passing hole 21 is an acute triangle or a right triangle.

It can be understood that, compare in the sewing machine among the prior art and do not choose the line spare, the suture 01 of drawing forth from thread trapper 9 directly wears out from second line hole 21 (as shown in fig. 4) after drawing forth from first line hole 11, the utility model provides a take up line quantity of suture 01 when taking up the line spare to forming the wire loop is: the sum of the distances from the string-taking-up hole 311 to the first string-passing hole 11 and the second string-passing hole 21, respectively, is different from the difference between the distances from the first string-passing hole 11 to the second string-passing hole 21.

As shown in fig. 1, a schematic diagram of a thread ring adjusting mechanism of a multi-needle flat seaming machine is shown, and as can be seen from the drawing, a plurality of thread picking members can be arranged on the thread clamping device mounting plate 1 for adjusting the thread take-up amount of the thread ring formed by each needle, the thread picking members correspond to the thread clamping devices 9 one by one and are used for changing the route of the thread drawn out from the thread clamping devices 9, because the thread clamping device mounting plate 1 is used for mounting a plurality of thread clamping devices 9, and a plurality of first thread through holes are correspondingly arranged, and a plurality of second thread through holes are correspondingly arranged on the thread passing frame 2. Of course, considering that only the wire loop of the needle at the lowest position needs to be adjusted in a normal case, only one thread take-up member may be provided so as to correspond to the gripper 9 corresponding to the needle requiring adjustment of the wire loop, as shown in fig. 1, the thread take-up member corresponds to the position on the gripper mounting plate 1 for mounting the uppermost gripper 9.

In order to enable different fabrics to have different take-up amounts, the relative positions of the first wire passing hole 11, the thread picking hole 311 and the second wire passing hole 21 are adjustable, so that the take-up amounts of the wire loops corresponding to different fabrics are adjusted by adjusting the relative positions of the first wire passing hole 11, the thread picking hole 311 and the second wire passing hole 21.

Specifically, the position-adjustable wire passing plate can be arranged on the wire holder mounting plate 1, the wire passing plate is provided with the first wire passing hole 11, the position of the first wire passing hole 11 relative to the wire picking hole 311 and the position of the second wire passing hole 21 are changed by adjusting the position of the wire passing plate on the wire holder mounting plate 1, and therefore the wire receiving amount of the wire rings corresponding to different cloth materials is changed.

Of course, it may be also possible to provide a plurality of second thread holes 21 corresponding to the first thread holes 11 and having different positions on the existing thread frame 2, and to change the thread take-up amount of the thread loops corresponding to different fabrics by passing the thread 01 drawn from the thread take-up hole 311 through the different second thread holes 21.

Of course, the main structures of the wire holder mounting plate 1 and the wire passing frame 2 may be the same as the structures of the conventional wire holder mounting plate 1 and the conventional wire passing frame 2 in the prior art, and the positions of the wire picking holes 311 relative to the first wire passing hole 11 and the second wire passing hole 21 are adjusted by adjusting the positions of the wire picking members, so as to change the wire winding amounts of the wire loops corresponding to different fabrics.

It should be noted that the specific arrangement position of the thread take-up member is not limited in the present invention, and when in use, the thread take-up member may be arranged on the thread clamp mounting plate 1, or may be arranged on the frame of the sewing machine, or may be connected to the thread passing frame 2 through the adaptor, as long as the relative positions of the thread take-up hole 311, the first thread passing hole 11 and the second thread passing hole 21 can be ensured.

It can be understood that, in the process of the up-and-down movement of the machine needle, the tension force of the thread 01 is constantly changed, the thread outlet amount required by each sewing needle is certain, therefore, the thread picking piece only needs to withdraw a certain amount of thread 01 when the thread loop is formed in order to avoid the phenomenon that the thread loop collapses due to overlarge thread loop, and after the curved needle passes through the thread loops of the machine needles, in order to ensure the thread outlet amount required by the sewing, when the tension force of the thread 01 is large, the thread 01 amount withdrawn by the thread picking piece needs to be released again.

Therefore, in the present invention, it is required to firstly ensure the elasticity of the thread take-up member, so that when the tension of the suture 01 at the needle is large, the thread take-up hole 311 can move along with the tension of the suture 01, thereby releasing the suture 01 which is withdrawn when the thread loop is formed; when the suture 01 at the needle has a small tension, the elastic force of the thread take-up member enables the thread take-up hole 311 to apply a certain tension to the suture 01 so as to withdraw a part of the suture 01 to be formed into a loop, thereby forming the suture 01 at the needle into a loop of a proper size. That is, the thread take-up hole 311 is moved according to a tension change of the thread 01 in use, thereby completing the thread take-up and the thread release.

It should be noted that, the thread take-up force applied to the thread 01 by the thread take-up member of the present invention is much smaller than the thread clamping force of the thread clamp 9, so as not to affect the existing thread clamp 9.

It can be understood that when the thread take-up hole 311 moves between the first thread passing hole 11 and the second thread passing hole 21 according to the tension of the thread 01, that is, when the first thread passing hole 11, the thread take-up hole 311 and the second thread passing hole 21 are collinear, the thread take-up is completely released.

Therefore, the wire ring adjusting mechanism provided by the utility model has the advantages that through the arrangement of the elastic wire picking piece, when the wire ring is formed, the wire picking piece is utilized to withdraw the suture 01 at the needle by a certain amount of wire, so that the amount of the suture 01 forming the wire ring is reduced, the wire ring has a proper size, and the phenomenon that the wire ring collapses due to overlarge size to cause needle skipping is avoided; the thread take-up amount of the thread loops corresponding to different fabrics is adjusted by adjusting the relative positions of the first thread passing hole 11, the thread picking hole 311 and the second thread passing hole 21 which form a triangular structure, so that different fabrics have the thread loops with the same size, and the needle skipping phenomenon when different fabrics are sewn is avoided by ensuring the stability of the size of the thread loops.

Meanwhile, when forming the stitch, since the thread take-up member has elasticity, when the tension of the thread 01 at the needle becomes large, the thread take-up hole 311 can be moved according to the tension of the thread 01, thereby releasing the amount of the thread 01 retracted when forming the thread loop to ensure the amount of thread take-up required for sewing.

In order to keep the structures and relative positions of the existing thread tension mounting plate 1 and the thread passing frame 2 as unchanged as possible, on the basis of the above-mentioned embodiments, the thread take-up member is adjustably provided to the thread tension mounting plate 1 to adjust the position of the thread take-up hole 311 by adjusting the position of the thread take-up member.

That is to say, in this embodiment, the main structure of the thread clamping mounting plate 1 and the thread passing frame 2 can be kept the same as the structure of the conventional thread clamping mounting plate 1 and the conventional thread passing frame 2 in the prior art, and the position of the thread picking hole 311 is adjusted by adjusting the position of the thread picking member, so as to change the relative positions of the first thread passing hole 11, the thread picking hole 311 and the second thread passing hole 21, and change the thread take-up amount of the thread ring corresponding to different fabrics.

In view of the simplicity of the structure of the thread take-up, on the basis of the above embodiment, the thread take-up is a torsion spring 3, one end of the torsion spring 3 is a thread hooking end 31, the thread hooking end 31 is provided with a take-up hole 311, and the thread hooking end 31 is arranged on the thread clamping mounting plate 1 in an adjustable position.

In consideration of the specific arrangement form of the thread take-up hole 311, it is preferable that the thread hooking end 31 is provided with a bent portion so as to form the thread take-up hole 311 by the bending of the bent portion. The present embodiment does not limit the specific shape of the bent portion as long as the suture 01 can be passed through.

In view of the stability of the torsion spring 3, it is preferable that the tension spring further comprises a support sleeve 8, the torsion spring 3 is rotatably sleeved on the outer periphery of the support sleeve 8, and the support sleeve 8 is fixedly arranged on the wire clamp mounting plate 1.

Further, one end of the support sleeve 8 is provided with a stop ring for axially limiting the torsion spring 3.

It can be understood that the torsion spring 3 has elasticity, and thus, when the tension of the suture 01 at the needle becomes large, the thread take-up hole 311 can be moved according to the tension of the suture 01 to release the amount of the suture 01 withdrawn when the thread loop is formed; in addition, when the thread ring is formed, the tension of the thread 01 at the needle is reduced, at this time, under the action of the elastic restoring force of the torsion spring 3, the thread hooking end 31 drives the thread picking hole 311 to withdraw a part of the thread 01 so as to form the thread ring with a proper size, and the specific thread withdrawing amount is related to the position of the thread hooking end 31, so that the position of the thread hooking end 31 can be adjusted and arranged on the thread clamp mounting plate 1 in order to ensure that different fabrics have proper thread withdrawing amounts.

In consideration of the specific manner of adjusting the position of the hook end 31, on the basis of the above-described embodiment, the gripper mounting plate 1 is provided with the first adjustable-position wire adjusting plate 4, and the first wire adjusting plate 4 is fixedly provided with the first overlapping portion 41 for overlapping the hook end 31.

That is to say, in this embodiment, collude line end 31 and locate the tension disk mounting panel 1 through first line adjusting plate 4 adjustable in position, first bridging portion 41 plays the supporting role to colluding line end 31 to resist torsional spring 3's pretension effect, guarantee collude the position when line end 31 receives the line. The first overlapping part 41 is fixedly arranged on the first thread adjusting plate 4, so that the position of the first overlapping part 41 can be adjusted by adjusting the position of the first thread adjusting plate 4, and the thread hooking end 31 can be supported to different positions.

In view of the limitation of the hooking end 31 on the first overlapping part 41, preferably, the first overlapping part 41 is provided with a first limiting groove for limiting the hooking end 31, the hooking end 31 is overlapped in the first limiting groove, and the hooking end 31 is limited laterally by the groove wall of the first limiting groove, so as to avoid the hooking end 31 from separating from the first overlapping part 41.

In consideration of the position adjustment manner of the first trimming plate 4, on the basis of the above-described embodiment, the first trimming plate 4 is fixed to the gripper mounting plate 1 by the first fastening screw 5 to adjust the position of the first overlapping part 41 by rotating the first trimming plate 4 when the first fastening screw 5 is loosened.

That is to say, in this embodiment, the first trimming plate 4 is detachably connected to the cable clamp mounting plate 1 through the first fastening screw 5, and when the first fastening screw 5 is tightened, the nut of the first fastening screw 5 presses the first trimming plate 4 against the cable clamp mounting plate 1, so as to fix the position of the first overlapping part 41, and further, the cable hooking end 31 is located at a proper position; when unscrewing or loosening first fastening screw 5, adjust the position of first overlap joint portion 41 through rotatory first accent line board 4, when first overlap joint portion 41 was rotated to suitable position, stop to rotate first accent line board 4, it can to tighten the fixing again first fastening screw 5.

As shown in fig. 2, when the first thread adjusting plate 4 is rotated counterclockwise, the thread hooking end 31 rises along with the rise of the first overlapping part 41, so that the sum of the distances from the thread picking hole 311 to the first thread passing hole 11 and the second thread passing hole 21 respectively decreases, and therefore, the take-up amount decreases and the thread loop increases; conversely, when the first thread adjusting plate 4 is rotated clockwise, the thread hooking end 31 is lowered with the lowering of the first engaging portion 41, so that the sum of the distances from the thread take-up hole 311 to the first thread passing hole 11 and the second thread passing hole 21 is increased, and thus the thread take-up amount is increased and the thread loop is reduced.

In order to increase the lifting amount of the first strap 41 when the first tension adjusting plate 4 is rotated by a small angle, the first tension adjusting plate 4 has an eccentric structure, and the first strap 41 is provided on the eccentric structure.

That is, the present embodiment increases the radius of rotation of the first strap 41 by the eccentric structure, thereby allowing the first strap 41 to have a large lifting amount when the first trimming plate 4 is rotated by a small angle.

In view of another position adjustment manner of the first wire adjusting plate 4, on the basis of the above-described respective embodiments, the first wire adjusting plate 4 is fixedly provided to the wire holder mounting plate 1 by the first fastening screw 5, and the wire holder mounting plate 1 is provided with a long hole for adjusting the fixing position of the first fastening screw 5.

That is, the present embodiment adjusts the position of the first strap 41 by adjusting the position of the first fastening screw 5 in the elongated hole to adjust the fixing position of the first strap 4.

It should be noted that this adjustment method can be used independently, or can be used in combination with the above adjustment method of rotating the first trimming plate 4 by unscrewing the first fastening screw 5, that is, in addition to adjusting the position of the first overlapping part 41 by rotating the first trimming plate 4, the position of the first trimming plate 4 can be adjusted in cooperation with adjusting the position of the first fastening screw 5, so that the first trimming plate 4 is fixed to a different position, in other words, the position of the rotation shaft of the first trimming plate 4 is changed by adjusting the position of the first fastening screw 5, thereby increasing the position adjustment range of the hook wire end 31.

The present embodiment does not limit the specific shape of the elongated hole, and the elongated hole may be a linear elongated hole or an elongated hole having a specific path.

It should be noted that, in the above embodiments, the fixing manner of the other end of the torsion spring 3 is not limited, and the other end of the torsion spring 3 may be fixedly arranged on the wire holder mounting plate 1, or may be arranged on the wire holder mounting plate 1 with an adjustable position.

In order to adjust the pretightening force of the torsion spring 3 conveniently, on the basis of the above embodiments, the other end of the torsion spring 3 is the force adjusting end 32, and the force adjusting end 32 is adjustably disposed on the thread tension device mounting plate 1, so as to adjust the thread take-up force applied by the thread hooking end 31 to the suture 01 by adjusting the position of the force adjusting end 32.

It can be understood that when the suture is wound up, the suture 01 is wound up through the elastic restoring force of the torsion spring 3, and the magnitude of the elastic restoring force of the torsion spring 3 is related to the pre-tightening force of the torsion spring 3. Since the thread take-up force required by different fabrics is different, the thread take-up force of the thread hooking end 31 is adjusted by adjusting the position of the force adjusting end 32 in the present embodiment.

It should be noted that, the present embodiment does not limit the position adjustment manner of the force adjusting end 32, and as a preferable solution, on the basis of the present embodiment, the thread tension mounting plate 1 is provided with a second force adjusting plate 6 with an adjustable position, and the second force adjusting plate 6 is fixedly provided with a second overlapping part 61 for overlapping the force adjusting end 32.

That is to say, this embodiment will adjust power end 32 position adjustable through second line adjusting plate 6 and locate the tension clamp mounting panel 1, and second bridging portion 61 plays the supporting role to adjusting power end 32 to resist the pretightning force effect of torsional spring 3, guarantee adjusting power end 32's position. The second overlapping part 61 is fixedly arranged on the second wire adjusting plate 6, so that the position of the second overlapping part 61 can be adjusted by adjusting the position of the second wire adjusting plate 6, and the force adjusting end 32 can be supported at different positions, so that the torsion spring 3 has different wire-picking forces.

Preferably, the second overlapping part 61 is provided with a second limiting groove for limiting the force adjusting end 32, and the force adjusting end 32 is overlapped in the second limiting groove to avoid the force adjusting end 32 from being separated from the second overlapping part 61.

Further, the force adjusting end 32 is provided with a bending part for hooking the second bridging part 61, so that the force adjusting end 32 and the second force adjusting plate 6 are more firmly fixed.

It should be noted that, the present invention does not limit the position adjustment manner of the second wire adjusting plate 6, and preferably, the position adjustment manner of the second wire adjusting plate 6 is the same as the position adjustment manner of the first wire adjusting plate 4, for example, the second wire adjusting plate 6 is fixed to the wire clamp mounting plate 1 by the second fastening screw 7, so as to adjust the position of the second overlapping portion 61 by rotating the second wire adjusting plate 6 when the second fastening screw 7 is loosened.

That is to say, the second line adjusting plate 6 is detachably connected with the line clamping device mounting plate 1 through the second fastening screw 7, when the second fastening screw 7 is screwed, the nut of the second fastening screw 7 presses the second line adjusting plate 6 on the line clamping device mounting plate 1, so that the position of the second overlapping part 61 is fixed, and the force adjusting end 32 is located at a proper position; when the second fastening screw 7 is loosened or loosened, the position of the second overlapping part 61 is adjusted by rotating the second wire adjusting plate 6, when the second overlapping part 61 is rotated to a proper position, the second wire adjusting plate 6 stops rotating, and then the second fastening screw 7 is screwed and fixed.

As shown in fig. 2, when the second wire adjusting plate 6 is rotated counterclockwise, the force adjusting end 32 is lowered along with the lowering of the second overlapping part 61, so that the torsion spring 3 is loosened and the wire picking force is reduced; on the contrary, when the second thread adjusting plate 6 is rotated clockwise, the force adjusting end 32 is lifted along with the lifting of the second overlapping part 61, so that the torsion spring 3 is tightened, and the thread take-up force is increased.

In addition to the above-mentioned thread ring adjusting mechanism, the present invention further provides a sewing machine including the thread ring adjusting mechanism disclosed in the above-mentioned embodiments, and the structure of other parts of the sewing machine refers to the prior art, which is not described herein again.

The thread tension 9 of the sewing machine is mounted on the thread tension mounting plate 1 of the thread loop adjusting mechanism, and when in use, the thread 01 drawn out from the thread tension 9 passes through the first thread passing hole 11, the thread take-up hole 311 and the second thread passing hole 21 of the thread loop adjusting mechanism in sequence.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The sewing machine with the thread ring adjusting mechanism provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A wire loop adjustment mechanism, comprising:

the wire clamping device comprises a wire clamping device mounting plate (1) used for mounting a wire clamping device (9), wherein the wire clamping device mounting plate (1) is provided with a first wire passing hole (11);

the wire passing frame (2) is connected with the wire clamping device mounting plate (1), and the wire passing frame (2) is provided with a second wire passing hole (21);

the thread picking piece is used for picking up threads (01) when the thread ring is formed so as to adjust the size of the thread ring, the thread picking piece is provided with a thread picking hole (311), the first thread passing hole (11), the thread picking hole (311) and the second thread passing hole (21) are used for enabling the threads (01) led out from the thread clamp (9) to sequentially pass through, the first thread passing hole (11), the thread picking hole (311) and the second thread passing hole (21) form a triangular structure, and the relative positions of the first thread passing hole, the thread picking hole and the second thread passing hole (21) are adjustable so as to adjust the thread picking amount of the thread ring corresponding to different fabrics by changing the relative positions of the first thread passing hole, the thread; the thread take-up member has elasticity so that the thread take-up hole (311) moves along with the tension change of the suture (01) when in use to release the thread take-up amount.

2. The wire ring adjustment mechanism of claim 1, wherein the wire picking member is position adjustable on the gripper mounting plate (1) to adjust the position of the wire picking hole (311) by adjusting the position of the wire picking member.

3. The wire ring adjusting mechanism according to claim 2, wherein the wire picking member is a torsion spring (3), one end of the torsion spring (3) is a wire hooking end (31), the wire hooking end (31) is provided with the wire picking hole (311), and the wire hooking end (31) is arranged on the wire clamp mounting plate (1) in an adjustable position.

4. The loop adjustment mechanism according to claim 3, characterized in that the gripper mounting plate (1) is provided with a first adjustable position adjustment plate (4), and the first adjustment plate (4) is fixedly provided with a first overlapping part (41) for overlapping the hooking end (31).

5. The wire loop adjustment mechanism according to claim 4, characterized in that the first wire adjustment plate (4) is fixed to the gripper mounting plate (1) by a first tightening screw (5) to adjust the position of the first overlapping part (41) by rotating the first wire adjustment plate (4) when the first tightening screw (5) is loosened.

6. A wire loop adjustment mechanism according to claim 5, characterized in that the first wire adjustment plate (4) has an eccentric structure on which the first overlapping part (41) is provided.

7. The wire loop adjustment mechanism according to claim 4, characterized in that the first wire adjustment plate (4) is fixed to the wire holder mounting plate (1) by a first fastening screw (5), the wire holder mounting plate (1) being provided with an elongated hole for adjusting the fixing position of the first fastening screw (5).

8. The wire loop adjusting mechanism according to any one of claims 3-7, wherein the other end of the torsion spring (3) is a force adjusting end (32), and the force adjusting end (32) is arranged on the wire clamp mounting plate (1) in an adjustable position, so as to adjust the wire picking force applied by the wire hooking end (31) to the suture (01) by adjusting the position of the force adjusting end (32).

9. The loop adjustment mechanism of claim 8, wherein the gripper mounting plate (1) is provided with a second adjustable position adjustment plate (6), and the second adjustment plate (6) is fixedly provided with a second overlapping part (61) for overlapping the force adjustment end (32).

10. A sewing machine comprising a thread clamp (9), characterized by further comprising the thread ring adjusting mechanism of any one of claims 1 to 9, wherein the thread clamp (9) is mounted on a thread clamp mounting plate (1) of the thread ring adjusting mechanism, and a thread (01) drawn out from the thread clamp (9) passes through a first thread passing hole (11), a thread picking hole (311) and a second thread passing hole (21) of the thread ring adjusting mechanism in sequence.

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