CN113957630B

CN113957630B - Coiling embroidery device

Info

Publication number: CN113957630B
Application number: CN202111389825.3A
Authority: CN
Inventors: 陈天池; 张汉苗; 郑邓飞; 楼凯
Original assignee: Zhejiang Yuelong Sewing Equipment Co ltd
Current assignee: Zhejiang Yuelong Sewing Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-10-11
Anticipated expiration: 2041-11-23
Also published as: CN113957630A

Abstract

A coiling embroidery device belongs to the technical field of embroidery machines. The device comprises a machine shell, a needle rod, a presser foot driving mechanism, a spitting frame and a rope embroidery driving mechanism; the needle rod vertically penetrates through the machine shell, a presser foot sleeve is sleeved outside the needle rod, a fixing sleeve is sleeved outside the presser foot sleeve and fixed on the machine shell, and a shaft sleeve is sleeved outside the fixing sleeve; the tail end of the presser foot sleeve is connected with the presser foot; the presser foot driving mechanism comprises a presser foot lifting motor arranged outside the machine shell and a presser foot driving component arranged in the machine shell; the rope embroidery driving mechanism comprises a rope embroidery driving motor arranged in the shell and a rope embroidery driving component arranged in the shell; a driving shaft of the rope embroidery driving assembly vertically penetrates through the machine shell and is used for driving the spitting frame connected outside the shaft sleeve to swing; the presser foot slide block of the presser foot driving component moves up and down along the driving shaft of the rope embroidery driving component, and then the presser foot sleeve is driven to lift. The embroidery machine has a simple and compact structure and good embroidery stability.

Description

Coiling embroidery device

Technical Field

The invention belongs to the technical field of embroidery machines, and particularly relates to a coiling embroidery device.

Background

The coiling embroidery in the computer embroidery machine is an embroidery process combining rope embroidery and strip embroidery. In the prior art, if an embroidery machine needs to realize multiple embroidery processes such as flat embroidery, band embroidery, rope embroidery and the like, an external hanging device is added on a conventional flat embroidery machine head. This increases the cost of the apparatus, increases the installation space, and is not conducive to small-pitch embroidery.

The applicant previously applied utility model patent CN201762554U discloses an independent tape embroidery device of an embroidery machine, and specifically discloses that the device includes a needle rod arranged in a machine head, a presser foot is arranged at a needle head position on the top end of the needle rod, and a rope embroidery opening is arranged on a rope embroidery opening frame corresponding to the needle head and the presser foot. The outer side of the machine head is also provided with a rope embroidery motor which drives the rope embroidery spitting opening to swing left and right along the needle falling position of the needle rod through the spitting opening swing driving device. The patent solves the problem of adding an external hanging device in the prior art, but the device still needs a space for installing the motor outside the machine head because the rope embroidery motor is arranged outside the machine head, the space between the machine heads cannot be compressed, and the number of the machine heads loaded on one embroidery machine is limited; meanwhile, the motor is arranged outside the machine head, and the driving distance of the motor for driving the executing component through the driving component is relatively long, so that although the driving function can be executed, the embroidery stability is not enough under the high-speed operation of the embroidery machine.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a coiling embroidery device which is simple and compact in structure and good in embroidery stability.

The invention is realized by the following technical scheme:

the invention relates to a coiling embroidery device, which comprises a machine shell, a needle bar, a presser foot driving mechanism, a spitting frame and a rope embroidery driving mechanism, wherein the needle bar is fixed on the machine shell; the needle rod vertically penetrates through the machine shell, a presser foot sleeve is sleeved outside the needle rod, a fixing sleeve is sleeved outside the presser foot sleeve and fixed on the machine shell, and a shaft sleeve is sleeved outside the fixing sleeve; the tail end of the presser foot sleeve is connected with the presser foot; the presser foot driving mechanism comprises a presser foot lifting motor arranged outside the shell and a presser foot driving component arranged in the shell; the rope embroidery driving mechanism comprises a rope embroidery driving motor arranged in the shell and a rope embroidery driving component arranged in the shell; a driving shaft of the rope embroidery driving assembly vertically penetrates through the shell and is used for driving the orifice frame connected outside the shaft sleeve to swing; and a presser foot slide block of the presser foot driving assembly moves up and down along a driving shaft of the rope embroidery driving assembly so as to drive the presser foot sleeve to lift.

According to the invention, under the condition that the size of the existing shell is not changed, the presser foot driving mechanism and the rope embroidery driving mechanism are compactly arranged in the shell, for example, the presser foot driving mechanism and the rope embroidery driving mechanism share one driving shaft, the presser foot driving mechanism uses the driving shaft as a guide shaft to drive the presser foot sliding block to move up and down, and the rope embroidery driving mechanism drives the spitting frame to swing by using the driving shaft, so that the interference between the actions is avoided, the limited space can be fully utilized, and the integral structure is compactly arranged. For another example, a cord embroidery driving motor designed outside the shell is further integrated in the shell, so that the distance between the driving motor and the driving component is shortened, the driving effect is better, and the embroidery is more stable.

In addition, a plurality of machine heads are arranged on a common computer embroidery machine, when the ribbon embroidery device is adopted, the distance between the adjacent machine heads of the embroidery machine is compressed, one embroidery machine can be provided with more machine heads, and the embroidery efficiency is higher.

Preferably, the presser foot driving component comprises a presser foot driving fork, a presser foot sliding block and a belt pulley transmission structure; one end of the presser foot driving fork is connected with the presser foot sleeve, and the other end of the presser foot driving fork is fixed at the bottom of the presser foot sliding block; the presser foot slide block is sleeved outside the driving shaft and is in transmission connection with the belt pulley transmission structure; the belt pulley transmission structure driven by the presser foot lifting motor is fixed on the inner side wall of the machine shell.

The existing belt coil presser foot drive is driven by a connecting rod device, the mechanical property of the connecting rod device drive is larger and rigid, and the presser foot effect is not good. In order to improve the presser foot effect, the applicant also changes the link arrangement from three-link transmission to four-link transmission, and although the stiffness problem of the mechanical transmission is improved by changing the rotation angle of the presser foot lever, the structure of the presser foot driving mechanism is more complicated and requires a housing to provide more installation space. The belt pulley transmission structure does not need to occupy a large mounting space of the machine shell, is adjustable in stroke, can meet the height requirements of various presser feet, and is suitable for embroidery work made of different materials.

Preferably, the belt pulley transmission structure comprises a belt, a presser foot driving wheel, a first presser foot driven wheel, a second presser foot driven wheel and a third presser foot driven wheel which are all fixed on the inner side wall of the machine shell; the belt is sequentially wound outside the presser foot driving wheel, the first presser foot driven wheel, the second presser foot driven wheel and the third presser foot driven wheel and returns to the outside of the presser foot driving wheel to form an L-shaped tensioning ring; the presser foot driving wheel, the first presser foot driven wheel and the second presser foot driven wheel are positioned on the inner side of the L-shaped tensioning ring, and the third presser foot driven wheel is positioned on the outer side of the L-shaped tensioning ring.

Preferably, the second presser foot driven wheel is located above the first presser foot driven wheel, the presser foot driving wheel is located behind the first presser foot driven wheel, the first presser foot driven wheel is located at an outer corner of the L-shaped tension ring, and the third presser foot driven wheel is located at an inner corner of the L-shaped tension ring.

Preferably, the rope embroidery driving component comprises a rope embroidery driving fork, a driving shaft, a driving block, a lower joint bearing, a screw, an upper joint bearing and a driving wheel; one end of the rope embroidery driving fork is connected with a rope embroidery driving ring sleeved outside the shaft sleeve, and the other end of the rope embroidery driving fork is fixed at the tail end of the driving shaft; the rope embroidery driving motor is sequentially connected with the upper joint bearing, the screw rod, the lower joint bearing, the driving block and the driving shaft through the driving wheel; the rope embroidery driving ring is movably connected with the shaft sleeve; the rope embroidery driving ring is used for driving the spitting frame to swing.

Preferably, the rope embroidery driving assembly further comprises a spring, one end of the spring is fixed on the driving block, and the other end of the spring is fixed on the inner side wall of the casing.

Preferably, the rope embroidery driving assembly further comprises a swing rod structure, and the swing rod structure comprises a rope embroidery tooth fork and a rope embroidery swinging piece; one end of the rope embroidery fork is connected with the rope embroidery driving ring, and the other end of the rope embroidery fork is rotationally connected with a swing arm of the rope embroidery swing piece; the other swing arm of the rope embroidery swing piece is connected with the spitting frame; the shaft sleeve is connected with the joint of the two swing arms of the rope embroidery swing piece.

Preferably, the rope embroidery driving motor is installed in the upper space of the casing; the driving block is positioned above the presser foot sliding block; a cross beam positioned above the driving block is arranged in the machine shell, and the cross beam allows the needle rod to pass through the driving shaft.

Preferably, the device further comprises a rotary driving mechanism, wherein the rotary driving mechanism comprises a rotary motor arranged above the machine shell and a rotary driving assembly arranged in the machine shell; the rotary driving component is used for driving the shaft sleeve to rotate so as to drive the orifice frame connected outside the shaft sleeve to rotate.

Preferably, the rotary driving assembly comprises a rotary shaft, a rotary driving wheel, a first rotary driven wheel and a second rotary driven wheel; the rotating driving wheel is sleeved on the rotating shaft and is sequentially meshed with the first rotating driven wheel and the second rotating driven wheel; the first rotary driven wheel is fixed on the shell; the second rotary driven wheel is fixed on the shaft sleeve; the rotary driving wheel, the first rotary driven wheel and the second rotary driven wheel are positioned on the same plane.

Preferably, the presser foot is connected with the presser foot sleeve through a presser foot mounting piece; the presser foot is of a U-shaped structure with a bent lower half part, the upper half part of the presser foot which is not bent is vertically arranged and connected with the presser foot mounting piece, and the bent lower half part faces the direction of the needle.

The invention has the following beneficial effects:

the coiling embroidery device is simple and compact in structure and good in stability of embroidery operation; the computerized embroidery machine can be provided with more machine heads than the prior machine heads, and has high embroidery operation efficiency; the invention can satisfy the functions of winding embroidery, coiling embroidery, rope embroidery and the like, and the embroidery is rich in variety.

Drawings

Fig. 1 is a front view of a ribbon embroidering apparatus of the present invention, which does not include a ribbon holder and a ribbon panel;

FIG. 2 is a schematic view of an assembly structure of a presser foot driving mechanism and a cord embroidery driving mechanism in the coiling embroidery device of the invention;

FIG. 3 is a schematic structural view of a presser foot driving assembly in the coiling embroidery device of the present invention;

FIG. 4 is a schematic structural diagram of a rope embroidery driving assembly in the coiling embroidery device of the present invention, wherein the driving shaft and the rope embroidery driving fork are not included in the diagram;

FIG. 5 is a schematic structural view of a swing link structure in the ribbon embroidery device of the present invention;

FIG. 6 is a schematic structural view of a rotary driving assembly in the embroidery device;

fig. 7 is a schematic structural view of a presser foot in the coiling embroidery device of the invention;

fig. 8 is a schematic perspective view of a ribbon embroidery device of the present invention, which includes a ribbon holder and a ribbon panel;

the sewing machine comprises a machine shell, a machine frame, a beam 11, a needle rod 2, a presser foot 3, a mouth spitting frame 4, a mouth spitting 41, a thread passing sleeve 42, a presser foot slider 51, a presser foot driving fork 52, a belt 53, a presser foot driving wheel 54, a first presser foot driven wheel 55, a second presser foot driven wheel 56, a third presser foot driven wheel 57, a driving shaft 61, a rope embroidery driving fork 62, a driving block 63, a lower joint bearing 64, a screw rod 65, an upper joint bearing 66, a driving wheel 67, a rope embroidery tooth fork 681, a rope embroidery swinging piece 682, a ball 683, a bolt 684, a lifting motor 7, a rope embroidery driving motor 8, a thread wheel frame 9, a presser foot sleeve A1, a presser foot driving ring B-shaft sleeve B, a rope embroidery driving ring B1, a rotating motor 10, a rotating shaft 101, a rotating driving wheel 102, a first rotating driven wheel 103, and a second rotating driven wheel 104; 20-tape winding clamper, 30-tape winding panel, 301-through hole and 302-winding clamping structure.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1, the invention relates to a coiling embroidery device, comprising a machine shell 1, a needle bar 2, a presser foot 3, a presser foot driving mechanism, a spout frame 4 and a rope embroidery driving mechanism. The presser foot driving mechanism comprises a presser foot lifting motor 7 arranged outside the machine shell 1 and a presser foot driving component arranged in the machine shell 1. The presser foot driving mechanism is used for driving the presser foot to lift. The rope embroidery driving mechanism comprises a rope embroidery driving motor 8 arranged in the machine shell 1 and a rope embroidery driving component arranged in the machine shell 1. The coiling embroidery device also comprises a wire wheel carrier 9, wherein a wire coil is arranged on the wire wheel carrier and is used for conveying a rope or a belt and other strip-shaped objects to a position to be embroidered to carry out coiling embroidery. The opening is used for threading a rope or a belt and other strip-shaped objects. The rope embroidery driving component is used for driving the spitting frame to swing, so that a spitting port on the spitting frame can swing left and right along the needle falling position of the needle rod 2.

The prior coiling embroidery device and the plain embroidery device are arranged on a computer embroidery machine together, and a plurality of machine heads (plain embroidery devices) are driven by a main shaft to move synchronously. The main shaft is also in transmission connection with a cam shaft on the coiling embroidery device, and then drives a cam and a connecting rod mechanism to realize the movement of a needle rod on the coiling embroidery device by means of the power of the main shaft. In addition, when the disk embroidery device is used independently, the needle bar driving mechanism can be arranged to independently drive the cam to rotate, and then the connecting rod mechanism drives the needle bar to move. The needle bar movement of the invention can be realized by the existing needle bar driving mechanism, for example, the needle bar driving structure disclosed in the prior invention patent application CN202011558628.5 can be adopted.

The needle rod 2 vertically penetrates through the machine shell 1, a presser foot sleeve pipe A is sleeved outside the needle rod 2, and the presser foot sleeve pipe A is movably connected with the needle rod 2. The presser foot sleeve a is externally sleeved with a fixing sleeve (not shown in the figure), and the fixing sleeve is fixed on the machine shell 1 (for example, the bottom of the machine shell is provided with an opening for installing the fixing sleeve). The fixed cover is sleeved with a shaft sleeve B, and the shaft sleeve B is movably connected with the fixed cover. The tail end of the presser foot sleeve A is connected with the presser foot 3, and the presser foot driving mechanism drives the presser foot sleeve to lift so as to drive the presser foot 3 to lift.

The existing presser foot driving mechanism and the rope embroidery driving mechanism are separately arranged, and a large amount of installation space in the machine shell is occupied. Therefore, the embroidery driving motor 8 in the embroidery driving mechanism is often arranged outside the shell, which not only can not reduce the space between the machine heads, but also increases the driving distance of the embroidery driving mechanism for driving the spitting frame to swing. Therefore, the invention improves the arrangement of the two. And a driving shaft 61 of the rope embroidery driving assembly vertically penetrates through the machine shell 1 and is used for driving the orifice frame 4 connected outside the shaft sleeve B to swing. The presser foot slide block 51 of the presser foot drive assembly moves up and down along the drive shaft 61 of the rope embroidery drive assembly, and then drives the presser foot sleeve a to lift. Referring to fig. 1 and 2, the rope embroidery driving assembly and the presser foot driving assembly are arranged on one side of the needle bar and are longitudinally arranged, and share a driving shaft to realize independent driving of respective functions. For the presser foot driving assembly, the driving shaft 61 is used as a guiding shaft, so that the presser foot slide block moves up and down along the driving shaft, and then the presser foot sleeve is driven to lift. For the cording drive assembly, the drive shaft 61 is a drive shaft for driving the swing of the spit frame 4.

The presser foot driving component comprises a presser foot driving fork 52, a presser foot slide block 51 and a presser foot transmission structure. One end of the presser foot driving fork 52 is connected with the presser foot sleeve A, and the other end is fixed at the bottom of the presser foot slide block 51. A presser foot driving ring A1 is arranged outside the presser foot sleeve A, the split ring-shaped end of the presser foot driving fork 52 is clamped in the presser foot driving ring A1, and the other end of the presser foot driving fork 52 is fixed at the bottom of the presser foot sliding block 51. The presser foot slide block 51 is sleeved outside the driving shaft 61 and is in transmission connection with the presser foot transmission structure. The presser foot transmission structure can adopt the existing belt pulley transmission structure or the connecting rod transmission structure. When a connecting rod transmission structure is adopted, the existing belt coiling presser foot drive usually adopts three-connecting rod or four-connecting rod transmission. The mechanical flexibility of the connecting rod transmission is poorer than that of a belt pulley or chain wheel transmission structure, the structure is complex, and more space is needed for the arrangement and the action of the connecting rod transmission structure. In case the connecting rod transmission structure is assembled, the movement stroke is determined, and the height adjustment of different requirements of the presser foot cannot be adapted, and the height of the presser foot is required to be different due to different materials of the existing embroidery materials. When the belt pulley transmission structure is adopted, the movement stroke of the belt pulley transmission structure can be adjusted, and the height requirements of various presser feet can be met. The belt wheel transmission structure can adopt a straight-line-shaped transmission structure formed by winding a belt on a presser foot driving wheel and a presser foot driven wheel which are longitudinally arranged; the belt pulley transmission structure of the invention can also be adopted: specifically, as shown in fig. 3, the belt pulley transmission structure of the present invention includes a belt 53, and a presser foot driving pulley 54, a first presser foot driven pulley 55, a second presser foot driven pulley 56, and a third presser foot driven pulley 57, all of which are fixed on the inner side wall of the housing 1. The belt 53 is sequentially wound around the presser foot driving wheel 54, the first presser foot driven wheel 55, the second presser foot driven wheel 56, and the third presser foot driven wheel 57, and is returned to the outside of the presser foot driving wheel 54, and is wound to form an L-shaped tension ring. The presser foot drive wheel 54, the first presser foot driven wheel 55, and the second presser foot driven wheel 56 are located inside the L-shaped tension ring, and the third presser foot driven wheel 57 is located outside the L-shaped tension ring. The presser foot slide block 51 is connected with a belt, and the belt moves to drive the presser foot slide block to lift. The belt pulley transmission structure can form ascending and descending stroke routes on the premise of fully utilizing the space of the shell, and is convenient for controlling the lifting of the presser foot to realize the frame crossing of the presser foot when the frame moving operation is carried out. The second presser foot follower 56 is located above the first presser foot follower 55, and the presser foot drive wheel 54 is located behind the first presser foot follower 55. The first presser foot follower 55 is located at the outer corner of the L-shaped tensioner ring and the third presser foot follower 57 is located at the inner corner of the L-shaped tensioner ring.

The rope embroidery driving component can adopt a driving structure comprising a driving shaft and a rope embroidery driving fork, one end of the rope embroidery driving fork is connected with a rope embroidery driving ring sleeved outside the shaft sleeve, and the other end of the rope embroidery driving fork is fixed at the tail end of the driving shaft. The rope embroidery driving ring is movably connected with the shaft sleeve and drives the opening spitting frame to swing through a swing rod structure. The swing rod structure converts the up-and-down motion into the left-and-right swing relative to the needle falling point of the needle rod. Preferably, as shown in fig. 4, the cording drive assembly of the present invention specifically includes a cording drive fork 62, a drive shaft 61, a drive block 63, a lower knuckle bearing 64, a screw 65, an upper knuckle bearing 66, and a drive wheel 67. One end of the rope embroidery driving fork 62 is connected with the rope embroidery driving ring B1 sleeved outside the shaft sleeve B, that is, the split ring-shaped end of the rope embroidery driving fork 62 is clamped in the rope embroidery driving ring B1, and the other end is fixed at the tail end of the driving shaft 63. The rope embroidery driving motor 8 is connected with an upper joint bearing 66, a screw 65, a lower joint bearing 64, a driving block 63 and a driving shaft 61 in sequence through the driving wheel 67. The rope embroidery driving motor drives the driving wheel to rotate, the driving wheel is movably connected with the upper joint bearing through a connecting piece, and the upper joint bearing swings by taking the connecting point as a rotating fulcrum. And two ends of the screw are respectively fixedly connected with the upper joint bearing 63 and the lower joint bearing 64 through bolts. The lower knuckle bearing 64 is movably connected with the driving block 63. The driving block 63 is sleeved outside the driving shaft 61. The spitting frame 4 is installed outside the shaft sleeve B through a swing rod structure. The rope embroidery driving motor drives the rope embroidery driving component to move, then drives the driving shaft 61 to lift, the driving shaft drives the rope embroidery driving ring B1 to lift through the rope embroidery driving fork 62, and then drives the opening spitting frame to swing by utilizing a swing rod structure between the rope embroidery driving ring and the opening spitting frame.

As shown in fig. 5, the swing link structure includes a stitch fork 681 and a stitch swinging member 682. One end of the stitch fork 681 is connected to the stitch driving ring B1, the other end of the stitch fork 681 is rotatably connected to a swing arm of the stitch swing member 682, and the other swing arm of the stitch swing member 682 is connected to the spitting frame 4. The shaft sleeve B is connected with the joint of the two swing arms of the rope embroidery swing member 682. Therefore, the rope embroidery swinging piece 682 takes the joint of the rope embroidery swinging piece 682 and the shaft sleeve B as a swinging fulcrum, and when the rope embroidery fork acts, one swinging arm of the rope embroidery swinging piece can be driven to swing, and then the other swinging arm is driven to swing, so as to drive the spitting frame to swing. Specifically, one end of the rope embroidery fork 681 is fixedly connected to the rope embroidery driving ring B1, and the other end is an open annular end, and a ball 683 is engaged in the open annular end, the ball 683 is sleeved on a bolt 684 connected to one swing arm of the rope embroidery swing member 682, and the other swing arm of the rope embroidery swing member 682 is connected to the spitting frame 4. The spout frame 4 can be provided with a spout 41 and/or a thread passing sleeve 42.

The rope embroidery driving assembly further comprises a spring 69, wherein one end of the spring 69 is fixed on the driving block 63, and the other end of the spring 69 is fixed on the inner side wall of the machine shell 1. After the upper and lower oscillating bearings oscillate to drive the oscillating bar structure to oscillate, the spring 69 is used to return to the original position before oscillation, so that the reliability of the rope embroidery driving assembly is improved.

In order to make the structural arrangement more compact, specifically, the embroidery drive motor 8 is installed in the upper space of the machine case 1, and the drive block 63 is located above the presser foot slide block 51. In order to improve the stability of the vertical penetration of the drive shaft through the housing, a cross beam 11 is provided in the housing 1 above the drive block 63, said cross beam 11 allowing the penetration of the needle bar 2 with the drive shaft 61. The beam 11 is a part of the casing 1, and can improve the structural strength. In order to avoid interference with the action of the upper joint bearing and the lower joint bearing, the transverse beam is designed to avoid indent at the positions close to the driving wheel, the upper joint bearing, the lower joint bearing, the screw rod and the like.

The presser foot 3 is connected to a presser foot sleeve a via a presser foot mounting member, which facilitates the replacement of the presser foot. The presser foot may be used for plain embroidery work, or may be used as shown in fig. 7. As shown in fig. 7, the presser foot is a U-shaped structure with a lower half portion bent, the upper non-bent portion of the presser foot is vertically arranged and connected with the presser foot mounting member (e.g., fixed by bolts), and the lower bent portion faces the needle direction. The presser foot is simple in structure, convenient to use and convenient to replace.

The coiling embroidery device also comprises a rotary driving mechanism, and the rotary driving mechanism is used for driving the spitting frame 4 and the wire wheel carrier to rotate. The rotary driving mechanism comprises a rotary motor and a rotary driving assembly. In one embodiment, existing rotary drive mechanisms may be employed, such as a rotary motor disposed outside the housing 1 and a rotary drive assembly disposed within or outside the housing. The rotary driving assembly comprises a rotary shaft, a rotary driving wheel and a rotary driven wheel, and the rotary driving wheel and the rotary driven wheel are connected through a belt. The rotating motor drives the rotating shaft to drive the rotating driving wheel to rotate, then drives the rotating driven wheel to rotate, the rotating driven wheel is sleeved outside the shaft sleeve, and then the shaft sleeve is driven to rotate. However, this method does not fully utilize the space in the casing, and requires a space for installing the rotating electric machine outside the casing. Therefore, the invention provides another embodiment, the rotating motor is not arranged at the outer side wall of the machine shell, but arranged at the upper position of the machine shell, so as to reduce the distance between the machine heads. The rotary drive assembly may take on a previous configuration. However, the original structure uses a belt pulley structure for transmission, a certain installation space is needed, and the transmission can be further improved to be in a transmission mode of meshing between wheels. As shown in fig. 6, the rotary driving assembly includes a rotary shaft 101, a rotary driving wheel 102, a first rotary driven wheel 103, and a second rotary driven wheel 104. The rotating driving wheel 102 is sleeved on the rotating shaft 101, and the rotating driving wheel 102 is sequentially meshed with the first rotating driven wheel 103 and the second rotating driven wheel 104; the first rotationally driven pulley 103 is fixed to the housing 1. The second rotatably driven pulley 104 is fixed to the sleeve B. The rotary driving wheel 102, the first rotary driven wheel 103, and the second rotary driven wheel 104 are located on the same plane, and are disposed in the depth direction of the housing. The rotating motor 10 (disposed above the casing 1, see fig. 8, and disposed in the housing of the disk tape gripper 20 above the casing) drives the driving shaft 101 to rotate, and then drives the rotating driving wheel 102, the first rotating driven wheel 103, and the second rotating driven wheel 104 to rotate in sequence, so as to drive the shaft sleeve B to rotate.

The coiling embroidery device of the invention also comprises a coiling thread catcher and a coiling panel, and referring to fig. 8, the coiling thread catcher 20 is arranged above the machine shell 1. The coiling thread clamping device adopts the thread clamping device used by the existing plain embroidery and is used for adjusting the thread clamping tension of the embroidery thread. Furthermore, a wire clamping structure is arranged at the position of the tape panel 30 close to the lower part of the casing, and a through hole 301 is further formed in the tape panel 30. Embroidery thread on the belt coiling thread clamping device is lowered to the thread clamping structure 302 from the upper part, bypasses the bottom of the thread clamping structure and then is upwards fed into the take-up lever, and the embroidery thread passes through the take-up lever and then is downwards fed into a machine needle through the through hole 301. When the thread take-up lever takes up the embroidery thread loosely, the thread clamping structure can adjust the tension of a plurality of upper threads to prevent the embroidery from throwing the thread.

When the coiling embroidery device and the plain embroidery device are arranged on a computer embroidery machine together, the problems of mechanical abrasion and thread loosening caused by the follow-up of the coiling embroidery device are avoided when the plain embroidery device works, and the coiling embroidery device also comprises a clutch mechanism. The clutch mechanism can adopt the existing clutch mechanism, such as the transmission clutch structure of the embroidery machine head disclosed in the prior utility model CN 214219059U. Therefore, when in flat embroidery operation, the coiling embroidery operation can be separated from the stopping rotation, the non-working damage of the coiling machine head part is reduced, and the service life of the part is prolonged.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A coiling embroidery device comprises a machine shell, a needle rod, a presser foot driving mechanism, a spitting frame and a rope embroidery driving mechanism; the needle rod vertically penetrates through the machine shell, a presser foot sleeve is sleeved outside the needle rod, a fixing sleeve is sleeved outside the presser foot sleeve and fixed on the machine shell, and a shaft sleeve is sleeved outside the fixing sleeve; the tail end of the presser foot sleeve is connected with the presser foot; the presser foot driving mechanism is characterized by comprising a presser foot lifting motor arranged outside the shell and a presser foot driving component arranged in the shell; the rope embroidery driving mechanism comprises a rope embroidery driving motor arranged in the shell and a rope embroidery driving component arranged in the shell; a driving shaft of the rope embroidery driving assembly vertically penetrates through the shell and is used for driving the orifice frame connected outside the shaft sleeve to swing; the presser foot sleeve is connected with a presser foot slide block of the presser foot driving component through a presser foot driving fork, and the presser foot slide block moves up and down along a driving shaft of the rope embroidery driving component so as to drive the presser foot sleeve to lift.

2. The apparatus of claim 1, wherein the presser foot drive assembly comprises a presser foot drive fork, a presser foot slider, a pulley transmission structure; one end of the presser foot driving fork is connected with the presser foot sleeve, and the other end of the presser foot driving fork is fixed at the bottom of the presser foot slide block; the presser foot slide block is sleeved outside the driving shaft and is in transmission connection with the belt pulley transmission structure; the belt pulley transmission structure driven by the presser foot lifting motor is fixed on the inner side wall of the machine shell.

3. The coiling embroidery device as claimed in claim 2, wherein the belt pulley transmission structure comprises a belt, and a presser foot driving wheel, a first presser foot driven wheel, a second presser foot driven wheel and a third presser foot driven wheel which are all fixed on the inner side wall of the machine shell; the belt is sequentially wound outside the presser foot driving wheel, the first presser foot driven wheel, the second presser foot driven wheel and the third presser foot driven wheel and returns to the outside of the presser foot driving wheel to form an L-shaped tensioning ring; the presser foot driving wheel, the first presser foot driven wheel and the second presser foot driven wheel are positioned on the inner side of the L-shaped tensioning ring, and the third presser foot driven wheel is positioned on the outer side of the L-shaped tensioning ring.

4. The apparatus as claimed in claim 3, wherein the second presser foot driven wheel is located above the first presser foot driven wheel, the presser foot driving wheel is located behind the first presser foot driven wheel, the first presser foot driven wheel is located at an outer corner of the L-shaped tension ring, and the third presser foot driven wheel is located at an inner corner of the L-shaped tension ring.

5. The coiling embroidery device as claimed in claim 1, wherein the coiling embroidery driving component comprises a coiling embroidery driving fork, a driving shaft, a driving block, a lower joint bearing, a screw rod, an upper joint bearing and a driving wheel; one end of the rope embroidery driving fork is connected with a rope embroidery driving ring sleeved outside the shaft sleeve, and the other end of the rope embroidery driving fork is fixed at the tail end of the driving shaft; the rope embroidery driving motor is sequentially connected with the upper joint bearing, the screw rod, the lower joint bearing, the driving block and the driving shaft through the driving wheel; the rope embroidery driving ring is movably connected with the shaft sleeve; the rope embroidery driving ring is used for driving the spitting frame to swing.

6. The apparatus of claim 5, wherein the cording embroidery driving assembly further comprises a spring, one end of the spring is fixed on the driving block, and the other end of the spring is fixed on the inner side wall of the housing.

7. The apparatus of claim 5, wherein the embroidery driving assembly further comprises a swing link structure, the swing link structure comprises an embroidery thread fork and an embroidery swing member; one end of the rope embroidery fork is connected with the rope embroidery driving ring, and the other end of the rope embroidery fork is rotationally connected with a swing arm of the rope embroidery swing piece; the other swing arm of the rope embroidery swing piece is connected with the spitting frame; the shaft sleeve is connected with the joint of the two swing arms of the rope embroidery swing piece.

8. The apparatus of claim 5, wherein the cording embroidery driving motor is installed in an upper space of the housing; the driving block is positioned above the presser foot slide block; a cross beam positioned above the driving block is arranged in the machine shell, and the cross beam allows the needle rod to pass through the driving shaft.

9. The coiling embroidery device as claimed in claim 1, further comprising a rotation driving mechanism, wherein the rotation driving mechanism comprises a rotation motor arranged above the machine shell and a rotation driving component arranged in the machine shell; the rotary driving assembly is used for driving the shaft sleeve to rotate so as to drive the orifice frame connected outside the shaft sleeve to rotate.

10. The apparatus of claim 9, wherein the rotary driving assembly comprises a rotary shaft, a rotary driving wheel, a first rotary driven wheel, and a second rotary driven wheel; the rotating driving wheel is sleeved on the rotating shaft and is sequentially meshed with the first rotating driven wheel and the second rotating driven wheel; the first rotary driven wheel is fixed on the shell; the second rotary driven wheel is fixed on the shaft sleeve; the rotary driving wheel, the first rotary driven wheel and the second rotary driven wheel are positioned on the same plane.

11. The apparatus according to claim 1, wherein the presser foot is connected to a presser foot sleeve via a presser foot mount; the presser foot is of a U-shaped structure with a bent lower half part, the upper half part of the presser foot which is not bent is vertically arranged and connected with the presser foot mounting piece, and the bent lower half part faces the direction of the needle.