CN113957631B

CN113957631B - Coiling embroidery device

Info

Publication number: CN113957631B
Application number: CN202111389911.4A
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: 2023-06-02
Anticipated expiration: 2041-11-23
Also published as: CN113957631A

Abstract

A coiling embroidery device belongs to the technical field of embroidery machines. The device comprises a shell, a needle bar, a presser foot, a mouth opening frame, a thread wheel frame and a rotary driving mechanism, wherein the needle bar vertically penetrates through the shell, a presser foot sleeve connected with the presser foot is sleeved outside the needle bar, a fixing sleeve is sleeved outside the presser foot sleeve, the fixing sleeve is fixed on the shell, and a shaft sleeve is sleeved outside the fixing sleeve; the rotary driving mechanism comprises a rotary motor arranged above the shell and a rotary driving assembly arranged in the shell; the rotary driving assembly is used for driving the shaft sleeve to rotate so as to drive the mouth opening frame and the wire wheel frame which are connected outside the shaft sleeve to synchronously rotate. The device has simple and compact structure and good embroidery stability.

Description

Coiling embroidery device

Technical Field

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

Background

The tape embroidery in the computerized embroidery machine is an embroidery process combining rope embroidery and tape embroidery. In the prior art, if various embroidery processes such as plain embroidery, belt embroidery and rope embroidery are to be realized, an externally hung device is added on a conventional plain embroidery machine head. Thus increasing the equipment cost and the installation space, and being unfavorable for small-head embroidery.

The utility model patent CN201762554U of the applicant discloses an independent tape embroidery device of an embroidery machine, and specifically discloses a device which comprises a needle bar arranged in a machine head, a presser foot is arranged at a needle head around the top end of the needle bar, a rope embroidery opening arranged on a rope embroidery opening frame is arranged corresponding to the needle head and the presser foot, an independent motor is connected to the outer side of the machine head, and the independent motor and the rope embroidery opening are connected by an opening rotation driving device to drive the rope embroidery opening to rotate. The patent solves the problem of adding an externally hung device in the prior art, but the device is characterized in that an independent motor is arranged outside a machine head, a space for installing the motor is still needed to be reserved outside the machine head, the space between the machine heads cannot be compressed, and the quantity of the machine heads loaded on one embroidery machine is limited; meanwhile, as the motor is arranged outside the machine head, the driving distance of the motor for driving the execution part through the driving assembly is relatively long, and the embroidery stability is insufficient under the high-speed running of the embroidery machine although the driving function can be executed.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides the tape coiling embroidery device which is simple and compact in structure and good in embroidery stability.

The utility model is realized by the following technical scheme:

the utility model relates to a coiled embroidery device which comprises a machine shell, a needle bar, a presser foot, a mouth opening frame, a thread wheel frame and a rotary driving mechanism, wherein the needle bar vertically penetrates through the machine shell, a presser foot sleeve connected with the presser foot is sleeved outside the needle bar, a fixing sleeve is sleeved outside the presser foot sleeve, the fixing sleeve is fixed on the machine shell, and a shaft sleeve is sleeved outside the fixing sleeve; the rotary driving mechanism comprises a rotary motor arranged above the shell and a rotary driving assembly arranged in the shell; the rotary driving assembly is used for driving the shaft sleeve to rotate so as to drive the mouth opening frame and the wire wheel frame which are connected outside the shaft sleeve to synchronously rotate.

The utility model is characterized in that the rotary driving mechanism is longitudinally arranged inside and outside the machine shell without changing the size of the existing machine shell, so that the tape embroidery device has compact structure, and the installation interval between adjacent machine heads is reduced, so that one embroidery machine can be provided with more machine heads, and the embroidery efficiency is higher. The device utilizes a rotary driving mechanism to synchronously drive the wire wheel frame and the orifice frame to rotate, reduces the number of driving mechanisms, and does not need to independently control the wire wheel frame and the orifice frame.

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 rotary driving wheel is sleeved on the rotary shaft and is sequentially meshed with the first rotary driven wheel and the second rotary 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 device further comprises a rope embroidery driving mechanism; the rope embroidery driving mechanism comprises a rope embroidery driving motor arranged in the shell and a rope embroidery driving assembly arranged in the shell; the driving shaft of the rope embroidery driving assembly vertically penetrates through the shell and is used for driving the mouth opening frame connected to the outside of the shaft sleeve to swing.

The utility model integrates the driving component for swinging and rotating the mouth opening frame into the shell, and also installs the rope embroidery driving motor into the shell from the existing outside, thereby fully utilizing the space in the shell and realizing compact overall structure arrangement. The improvement further reduces the installation distance between the machine heads, shortens the driving distance for controlling the action of the executing component by the motor through the driving component, and greatly improves the stability of embroidery operation.

Preferably, the rope embroidery driving mechanism and the rotary driving mechanism are positioned at one side of the needle bar; the driving shaft and the needle bar are arranged side by side, and the rotating shaft is positioned behind the driving shaft.

Preferably, the rope embroidery driving assembly comprises a rope 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 an upper joint bearing, a screw rod, a lower joint bearing, a driving block and a 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 mouth opening 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 shell.

Preferably, the rope embroidery driving assembly further comprises a swinging rod structure, wherein the swinging rod structure comprises rope embroidery tooth forks and rope embroidery swinging pieces; one end of the rope embroidery tooth fork is connected with the rope embroidery driving ring, and the other end of the rope embroidery tooth fork is rotationally connected with a swinging arm of the rope embroidery swinging piece; the other swing arm of the rope embroidery swing piece is connected with the mouth opening frame; the shaft sleeve is connected with the connecting part of the two swing arms of the rope embroidery swinging piece.

Preferably, the device further comprises a presser foot driving mechanism; the presser foot driving mechanism comprises a presser foot lifting motor arranged outside the machine shell and a presser foot driving assembly arranged in the machine shell; the presser foot driving assembly is used for driving the presser foot sleeve to lift.

Preferably, the presser foot is connected with a 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 towards the needle direction.

Preferably, the device further comprises a coil wire clamp arranged above the shell; the rotating motor is arranged in the shell of the coil wire clamp.

The utility model has the following beneficial effects:

the tape coiling embroidery device has a simple and compact structure and good embroidery operation stability; the computerized embroidery machine can be provided with more machine heads than the prior art, and the embroidery work efficiency is high; the utility model can meet the multiple functions of winding embroidery, coiling embroidery, rope embroidery and the like, and has rich embroidery varieties.

Drawings

FIG. 1 is a front view of a tape embroidering apparatus of the present utility model, not including a tape clamp and a tape panel;

FIG. 2 is a schematic diagram showing an assembly structure of a rotary driving mechanism and a mouth opening frame in a tape embroidery device according to the present utility model;

FIG. 3 is a schematic diagram of a cord embroidery drive assembly in a tape coiling embroidery apparatus according to the present utility model, wherein the cord embroidery drive assembly does not include a drive shaft and a cord embroidery drive fork;

FIG. 4 is a schematic diagram of the structure of a swing rod in the tape coiling embroidery device;

FIG. 5 is a schematic diagram of a presser foot driving assembly in a tape embroidery apparatus according to the utility model;

FIG. 6 is a schematic view of the structure of the presser foot in the tape coiling embroidery device of the present utility model;

FIG. 7 is a schematic perspective view of a tape embroidery apparatus of the present utility model, comprising a tape thread clamp and a tape panel;

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

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Referring to fig. 1, the tape embroidery device of the present utility model comprises a housing 1, a needle bar 2, a presser foot 3, a mouth opening frame 4, a thread wheel frame 9, and a rotation driving mechanism. The wire reel frame is provided with a wire coil for conveying belts such as ropes or belts to the embroidery place for carrying out coiling embroidery. The spouts are used for threading belts such as ropes or belts. The rotation driving mechanism is used for driving the mouth opening frame 4 and the wire wheel frame 9 to rotate.

The existing tape embroidery device and the flat embroidery device are arranged on a computer embroidery machine together, and a plurality of machine heads (flat embroidery devices) are driven by a main shaft to synchronously move. The main shaft is also in transmission connection with a cam shaft on the tape embroidery device, and then the cam and the connecting rod mechanism are driven to transmit by the power of the main shaft, so that the needle bar on the tape embroidery device can move. In addition, when the tape 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 is used for driving the needle bar to move. The needle bar can be driven to lift by an existing driving mechanism, for example, the needle bar can be driven to lift by a needle bar driving structure disclosed in the prior patent application CN 202011558628.5. In addition, the presser foot can also be lifted by adopting the existing presser foot driving mechanism, such as a disc belt presser foot driving mechanism disclosed in the prior patent application No. CN20110202021. X.

The needle bar 2 vertically passes through the machine shell 1, a presser foot sleeve A is sleeved outside the needle bar 2, and the presser foot sleeve A is movably connected with the needle bar 2. The presser foot sleeve a is sleeved with a fixing sleeve (not shown in the figure), and the fixing sleeve is fixed on the casing 1 (for example, an opening for installing the fixing sleeve is formed in the bottom of the casing). The fixed sleeve is sleeved with a shaft sleeve B, and the shaft sleeve B is movably connected with the fixed sleeve. 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 and then drives the presser foot 3 to lift.

Existing rotary drive mechanisms include a rotary motor and a rotary drive assembly. In the prior art, the rotating motor is often arranged outside the side wall of the machine shell, so that the distance between the machine heads can be increased, and a plurality of machine heads cannot be arranged on one embroidery machine. Therefore, the utility model improves the structural arrangement of the device, so that the whole structure is compact. As shown in fig. 1, a rotary electric machine 10 is provided above a housing 1, and a rotary drive assembly is disposed in the housing. Specifically, the rotating electrical machine 10 is placed in the casing of the coil wire holder 20 above the casing, the longitudinal arrangement shortens the distance between the machine heads, and can be hidden in the casing of the coil wire holder for assembly, thereby being attractive and occupying no space. The existing rotary driving assembly can be provided with two groups for respectively driving the mouth opening frame and the wire wheel frame to rotate, and can also be provided with a group for synchronously driving the mouth opening frame and the wire wheel frame to rotate. When a group is provided, the rotary drive assembly is often implemented by a pulley transmission structure. The rotary driving assembly comprises a rotary shaft, a rotary driving wheel and a rotary driven wheel, and the rotary driving wheel is connected with the rotary driven wheel 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, and the rotating driven wheel is sleeved outside the shaft sleeve B, so as to drive the wire wheel frame and the mouth opening frame which are arranged on the shaft sleeve to rotate. However, the belt pulley transmission structure needs a certain installation space, so that the structure arrangement in the shell is more compact, and the belt pulley transmission structure is further improved into an inter-wheel meshing transmission structure. As shown in fig. 2, 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 rotary driving wheel 102 is sleeved on the rotary shaft 101, and the rotary driving wheel 102 is sequentially meshed with the first rotary driven wheel 103 and the second rotary driven wheel 104; the first rotary driven wheel 103 is fixed to the casing 1. The second rotary driven wheel 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 positioned on the same plane and are arranged in the depth direction of the casing. The rotary motor 10 (disposed above the casing 1, see fig. 7, disposed in the casing of the belt wire clamping device 20 above the casing) drives the driving shaft 101 to rotate, and then drives the rotary driving wheel 102, the first rotary driven wheel 103, and the second rotary driven wheel 104 to rotate in turn, so as to drive the shaft sleeve B to rotate.

The coiling embroidery device also comprises a rope embroidery driving mechanism. The rope embroidery driving mechanism comprises a rope embroidery driving motor and a rope embroidery driving assembly. In one embodiment, the rope embroidery driving motor may be set outside the casing and the rope embroidery driving assembly may be set inside the casing. However, in this way, the distance between the machine heads is increased, and more machine heads cannot be arranged on one embroidery machine. For this purpose, in another embodiment, the cord embroidery driving motor may be disposed in the casing, and the cord embroidery driving assembly may be disposed in the casing. In this way, the compactness of the structure can be improved by the spatial arrangement. The rope embroidery driving assembly 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 mouth opening frame to swing through the swing rod structure. The swing rod structure converts the up-and-down motion into left-and-right swing relative to the needle falling point of the needle rod. Specifically, as shown in fig. 3, the rope embroidery driving assembly comprises a rope embroidery driving fork 62, a driving shaft 61, a driving block 63, a lower joint bearing 64, a screw 65, an upper joint bearing 66 and a driving wheel 67. One end of the rope embroidery driving fork 62 is connected with a rope embroidery driving ring B1 sleeved outside the shaft sleeve B, namely, the open annular end of the rope embroidery driving fork 62 is clamped in the rope embroidery driving ring B1, and the other end of the rope embroidery driving fork is fixed at the tail end of the driving shaft 63. The rope embroidery driving motor 8 is sequentially connected with an upper knuckle bearing 66, a screw 65, a lower knuckle bearing 64, a driving block 63 and a driving shaft 61 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 knuckle bearing through a connecting piece, and the upper knuckle bearing swings by taking the connecting point as a rotating fulcrum. The two ends of the screw rod are fixedly connected with an upper knuckle bearing 63 and a lower knuckle bearing 64 through bolts respectively. 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 mouth opening frame 4 is arranged outside the shaft sleeve B through a swing rod structure. The rope embroidery driving motor drives the rope embroidery driving assembly to act, 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 the swinging rod structure between the rope embroidery driving ring and the opening frame is utilized to drive the opening frame to swing.

As shown in fig. 4, the swing rod structure includes a rope embroidery fork 681 and a rope embroidery swing member 682. One end of the rope embroidery thread fork 681 is connected with the rope embroidery driving ring B1, the other end of the rope embroidery thread fork 681 is rotatably connected with one swing arm of the rope embroidery swinging piece 682, and the other swing arm of the rope embroidery swinging piece 682 is connected with the mouth opening frame 4. The shaft sleeve B is connected with the joint of the two swing arms of the rope embroidery swing piece 682. Thus, the rope embroidery oscillating piece 682 takes the joint of the rope embroidery oscillating piece and the shaft sleeve B as an oscillating fulcrum, and when the rope embroidery tooth fork acts, one oscillating arm of the rope embroidery oscillating piece can be driven to oscillate, then the other oscillating arm is driven to oscillate, and the mouth opening frame is driven to oscillate. Specifically, one end of the rope embroidery fork 681 is fixedly connected with the rope embroidery driving ring B1, the other end is an open annular end, a ball 683 is clamped in the open annular end, the ball 683 is sleeved on a bolt 684 connected with one swing arm of the rope embroidery swinging piece 682, and the other swing arm of the rope embroidery swinging piece 682 is connected with the mouth opening frame 4. The spouting frame 4 may be provided with a spouting 41 and/or a threading sheath 42.

The rope embroidery driving assembly further comprises a spring 69, 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 knuckle bearings swing to drive the swing rod structure to swing, the spring 69 is utilized to restore to the original position before swinging, so that the reliability of the rope embroidery driving assembly is improved.

In order to further improve the compactness, the rope embroidery driving mechanism and the rotary driving mechanism are arranged on one side of the needle bar (see fig. 1). The drive shaft 61 is arranged side by side with the needle bar 2, and the rotation shaft 101 is located behind the drive shaft 61.

The utility model can adopt the existing presser foot driving mechanism, and can improve the arrangement position of the existing presser foot driving mechanism for improving the structural compactness. The presser foot driving mechanism comprises a presser foot lifting motor and a presser foot driving assembly. Because the existing presser foot driving mechanism and the rope embroidery driving mechanism are arranged separately, the rope embroidery driving motor is often arranged outside the casing, which not only can not reduce the distance between the machine heads, but also increases the driving distance of the rope embroidery driving mechanism for driving the mouth opening frame to swing. Therefore, the presser foot driving assembly and the presser foot lifting motor are both arranged in the machine shell. The presser foot driving assembly can be realized by adopting a presser foot driving fork, a presser foot sliding block and a presser foot 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 sleeve is provided with a presser foot driving ring, the annular end of the opening of the presser foot driving fork is clamped in the presser foot driving ring, and the other end of the presser foot driving fork is fixed at the bottom of the presser foot sliding block. The presser foot sliding block is sleeved outside the driving shaft 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 connecting rod transmission structure.

When the connecting rod transmission structure is adopted, the existing disc belt presser foot drive is usually driven by adopting three connecting rods or four connecting rods. The mechanical flexibility of the link drive is inferior to that of the pulley or sprocket drive, and the structure is complex, requiring more space for the link drive arrangement and action. Once the connecting rod transmission structure is assembled, the motion stroke is determined, so that the height adjustment of the presser foot cannot be adapted to different requirements, and the different requirements on the height of the presser foot exist 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 belt pulley transmission structure can adapt to the height requirements of various presser feet. The belt pulley transmission structure can be a linear transmission structure formed by winding a belt on a presser foot driving wheel and a presser foot driven wheel which are longitudinally arranged; the pulley transmission structure of the utility model can also be adopted: specifically, as shown in fig. 5, the pulley transmission structure of the present utility model includes a belt 53, and a presser foot driving wheel 54, a first presser foot driven wheel 55, a second presser foot driven wheel 56, and a third presser foot driven wheel 57, all of which are fixed to the inner side wall of the housing 1. The belt 53 is 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 in order, and returns to the outside of the presser foot driving wheel 54 to form an L-shaped tension ring. The presser foot driving wheel 54, the first presser foot driven wheel 55 and the second presser foot driven wheel 56 are positioned on the inner side of the L-shaped tensioning ring, and the third presser foot driven wheel 57 is positioned on the outer side of the L-shaped tensioning 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 also form a lifting and descending travel route on the premise of fully utilizing the space of the shell, and is convenient for controlling the presser foot to lift to realize the frame crossing of the presser foot during frame moving operation. Wherein the second presser foot driven wheel 56 is located above the first presser foot driven wheel 55, and the presser foot driving wheel 54 is located behind the first presser foot driven wheel 55. The first presser foot driven wheel 55 is located at the outer corner of the L-shaped tension ring, and the third presser foot driven wheel 57 is located at the inner corner of the L-shaped tension ring.

Besides the improvement of arranging the presser foot lifting motor in the shell, the rope embroidery driving component and the presser foot driving component are further arranged on one side of the needle bar and are longitudinally arranged, and the independent driving of the functions of the rope embroidery driving component and the presser foot driving component is realized by sharing one driving shaft. Specifically, as shown in fig. 1, a driving shaft 61 of the rope embroidery driving assembly vertically penetrates through the casing 1 to drive the opening frame 4 connected to the outside of the shaft sleeve B to swing. The presser foot slider 51 of the presser foot driving assembly moves up and down along the driving shaft 61 of the rope embroidery driving assembly, and then drives the presser foot sleeve A to lift. For the presser foot driving assembly, the driving shaft 61 is used as a guiding shaft, so that the presser foot slider moves up and down along the driving shaft, and then drives the presser foot sleeve to lift. The drive shaft 61 is a drive shaft for driving the swing of the spit frame 4 in the string embroidery drive unit.

In order to further improve the compactness of the structure, the space arrangement of the rope embroidery driving mechanism and the presser foot driving mechanism is optimized. The rope embroidery driving motor 8 is installed in the upper space of the casing 1, and the driving block 63 is located above the presser foot slider 51 (as shown in fig. 1). In order to increase 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 cross beam 11 is a part of the casing 1, which can improve structural strength. In order to avoid interference of actions of the upper joint bearing and the lower joint bearing, the beam is arranged at a position close to the driving wheel, the upper joint bearing, the lower joint bearing, the screw rod and the like, so that the concave avoidance design is carried out.

The presser foot 3 is connected with the presser foot sleeve A through a presser foot mounting piece, so that the presser foot can be replaced conveniently. The presser foot can be used for flat embroidery operation, or the presser foot shown in fig. 7. Referring to fig. 6, the presser foot is a U-shaped structure with a bent lower half, and an unbent upper half of the presser foot is vertically arranged and connected with a presser foot mounting member (e.g. fixed by a bolt), and the bent lower half faces the machine needle direction. The presser foot is simple in structure, convenient to use and convenient to replace.

The coil embroidering device of the present utility model further comprises a coil holder and a coil panel, see fig. 7, the coil holder 20 being disposed above the casing 1. The coiling thread clamp adopts the thread clamp used in the prior flat embroidery for adjusting the clamping tension of the embroidery thread. Further, a wire clamping structure 302 is disposed at a position of the tape panel 30 near the lower part of the casing, and a through hole 301 is further formed in the tape panel 30. The embroidery thread on the coiling thread clamp is put down to the thread clamping structure from the upper part, goes around the bottom of the thread clamping structure and then is sent up to the thread take-up lever, and the embroidery thread passes through the thread take-up lever and then is sent down to the needle through the through hole 301. When the thread take-up lever takes up the embroidery thread loose, the thread clamping structure can adjust the tension of the upper thread which is more out, and the embroidery thread is prevented from being thrown.

When the coiling embroidery device and the flat embroidery device are arranged on a computer embroidery machine together, the problem that mechanical abrasion and thread picking are caused by follow-up of the coiling embroidery device when the flat embroidery device works is avoided, and the coiling embroidery device further comprises a clutch mechanism. The clutch mechanism can be an existing clutch mechanism, such as a transmission clutch structure of an embroidery machine head disclosed in a prior patent CN 214219059U. Therefore, during the flat embroidery operation, the coiling embroidery operation can be disconnected to stop rotating, 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 utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. The utility model provides a coiling embroidery device, includes casing, needle bar, presser foot, mouth opening frame, line wheel carrier, rotary driving mechanism, the needle bar vertically passes the casing, the needle bar overcoat is equipped with the presser foot sleeve pipe of connection presser foot, the presser foot sleeve pipe overcoat is equipped with the fixed cover, the fixed cover is fixed on the casing, fixed cover overcoat is equipped with the axle sleeve; the rotary driving mechanism is characterized by comprising a rotary motor arranged in a shell of the coiled wire clamp above the shell and a rotary driving assembly arranged in the shell; the rotary driving assembly is used for driving the shaft sleeve to rotate so as to drive the mouth opening frame and the wire wheel frame which are connected outside the shaft sleeve to synchronously rotate; the tape embroidery device also comprises a rope embroidery driving mechanism; the rope embroidery driving mechanism comprises a rope embroidery driving motor arranged in the shell and a rope embroidery driving assembly arranged in the shell; the rope embroidery driving assembly comprises a driving shaft, a rope embroidery driving fork, a driving block, a lower joint bearing, a screw rod, an upper joint bearing, a driving wheel, a swinging rod structure and a spring; the rope embroidery driving motor is sequentially connected with an upper joint bearing, a screw rod, a lower joint bearing, a driving block and a driving shaft through the driving wheel; the driving shaft vertically passes through the shell, 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 driving shaft is fixed at the tail end of the driving shaft; the rope embroidery driving ring is movably connected with the shaft sleeve, the mouth opening frame is arranged outside the shaft sleeve through the swing rod structure, and the rope embroidery driving ring drives the mouth opening frame to swing through the swing rod structure; 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 shell; the rope embroidery driving motor drives the rope embroidery driving assembly to act, then drives the driving shaft to lift, the driving shaft drives the rope embroidery driving ring to lift through the rope embroidery driving fork, and then the swinging rod structure between the rope embroidery driving ring and the opening frame is utilized to drive the opening frame to swing; the rotary driving assembly comprises a rotary shaft, a rotary driving wheel, a first rotary driven wheel and a second rotary driven wheel; the rotary driving wheel is sleeved on the rotary shaft and is sequentially meshed with the first rotary driven wheel and the second rotary 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; the rope embroidery driving mechanism and the rotary driving mechanism are positioned at one side of the needle bar; the driving shaft and the needle bar are arranged side by side, and the rotating shaft of the rotating driving assembly is positioned behind the driving shaft.

2. A tape embroidery device according to claim 1, wherein said pendulum structure comprises a string embroidery fork, a string embroidery pendulum; one end of the rope embroidery tooth fork is connected with the rope embroidery driving ring, and the other end of the rope embroidery tooth fork is rotationally connected with a swinging arm of the rope embroidery swinging piece; the other swing arm of the rope embroidery swing piece is connected with the mouth opening frame; the shaft sleeve is connected with the connecting part of the two swing arms of the rope embroidery swinging piece.

3. A tape embroidering apparatus according to claim 1, further comprising a presser foot drive mechanism; the presser foot driving mechanism comprises a presser foot lifting motor arranged outside the machine shell and a presser foot driving assembly arranged in the machine shell; the presser foot driving assembly is used for driving the presser foot sleeve to lift.

4. A tape embroidering 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 towards the needle direction.