CN216585569U - Coiling embroidery device - Google Patents

Abstract

A coiling embroidery device belongs to the technical field of embroidery machines. The device comprises a shell, a needle rod part, a press foot part and a material tray part; a presser foot sleeve, a fixed sleeve and a shaft sleeve are sequentially sleeved outside the needle rod; the fixed sleeve is fixed on the shell; the presser foot part comprises a presser foot mounting part connected with a presser foot sleeve and a presser foot rotation driving mechanism; the material tray part comprises a material tray frame and a material tray driving mechanism; the material tray driving mechanism drives the shaft sleeve to rotate and drives the material tray frame to rotate; the presser foot rotary driving mechanism drives the presser foot sleeve to rotate and drives the presser foot mounting piece to rotate. The utility model solves the problem that the high-speed operation of the coiling embroidery cannot be met due to overlarge size of the material tray in the existing synchronous rotation.

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 coiling embroidery device is used for embroidering ribbon objects such as ribbon and/or rope. The coiling embroidery device generally comprises a shell, a driving main shaft, a needle rod part, a feeding part, a foot pressing part and a thread take-up rod part. The conventional tape embroidery device drives a feed tray frame of a feeding part and a presser foot mounting piece of a presser foot part (a presser foot for threading a tape and a nozzle for threading a rope are mounted on the presser foot mounting piece, and the presser feet described herein are all auxiliary presser feet for threading the tape for tape embroidery, and are not used for flat embroidery, and are also mounted in the tape embroidery device, but are not shown in the figures, and are not additionally described herein) to synchronously rotate through a driving motor. In order to improve the continuous working time of the coiling embroidery, the existing feeding part adopts a large-size tray to carry a large-capacity strip material. Along with the increase of the size of the material tray, the load is increased, the coiling embroidery device needs to run at a high speed, when the material tray and the presser foot mounting piece rotate synchronously, the rotation inertia is large during rotation, and the material tray is not easy to brake and turn around. Therefore, the rotating speed of the existing material tray is controlled to be 600-700 revolutions per minute, and during the working period of the coiling embroidery device, the material tray rotates and is hard, the mechanical abrasion is serious, and the embroidery efficiency is reduced.

The utility model patent CN201785610U discloses independent dribbling embroidery device to specifically disclose the device and included needle bar actuating mechanism, the dish actuating mechanism that charges, presser foot hoist mechanism, the dish actuating mechanism that charges comprises step motor, the drive mechanism who is connected with step motor, is connected with multi-functional axle sleeve on the drive mechanism, multi-functional axle sleeve periphery is equipped with the tray frame, multi-functional axle sleeve periphery still is equipped with supplementary defeated rope frame, supplementary defeated rope frame and multi-functional axle sleeve fixed connection, supplementary defeated rope frame can not rotate. The transmission ratio of the transmission mechanism connected with the stepping motor is 1: 2. The utility model discloses a through setting up 1:2 drive ratio for when step motor's per minute rotational speed is 400~600 revolutions, multi-functional axle sleeve rotational speed reaches 800~1200 revolutions per minute, accords with the defeated material demand of high speed, and the charging tray rotation dynamics is enough, and moves stably. However, the rotation of the material tray and the rotation of the presser foot mounting piece in the device still adopt a synchronous mode, and even if the transmission ratio is changed, the problems still exist.

In addition, a belt coiling swing assembly is further mounted on a presser foot mounting piece of the conventional belt coiling embroidery device, and the belt coiling swing assembly drives a swing rod to swing back and forth through an independent driving mechanism of the belt coiling swing assembly, so that a rope belt swing driving structure of a belt coiling embroidery machine head disclosed in a novel patent CN202500008U is used for reality. This requires a space for arranging the tape oscillating unit driving mechanism in the cabinet. And when the embroidery is swung, the swinging rod is firstly swung to the embroidery original point, then the swinging rod is driven to swing to one side to finish the embroidery, then the swinging rod is driven to swing to the embroidery original point again, then the swinging rod is driven to swing to the other side to finish the embroidery, and the rope belt embroidery is carried out in a reciprocating manner. Therefore, the swing embroidery process is complex, the swing track of the swing rod has the highest point and the lowest point, and the rope thread passing through the swing rod is unstable in stress, so that the embroidery quality is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a coiling embroidery device which can independently control the rotation process of a feed tray frame and a presser foot mounting piece, solves the problem that the high-speed operation of coiling embroidery cannot be met due to overlarge size of a feed tray in the synchronous rotation process of the feed tray frame and the presser foot mounting piece, is more flexible to control, reduces mechanical abrasion and improves the embroidery efficiency.

The utility model is realized by the following technical scheme:

a coiling embroidery device comprises a shell, a needle rod part, a foot pressing part and a material tray part; a needle rod of the needle rod part vertically penetrates through the machine shell, and a pressure foot sleeve of the pressure foot part is sleeved outside the needle rod; the presser foot sleeve is sleeved with a fixed sleeve, the fixed sleeve is sleeved with a shaft sleeve, and the fixed sleeve is fixed on the shell; the pressure foot part comprises a pressure foot mounting part connected with a pressure foot sleeve and a pressure foot rotation driving mechanism, and the pressure foot mounting part is used for mounting a pressure foot and a nozzle; the material tray part comprises a material tray frame and a material tray driving mechanism; the material tray driving mechanism drives the shaft sleeve to rotate so as to drive the material tray frame to rotate; the presser foot rotary driving mechanism drives the presser foot sleeve to rotate so as to drive the presser foot mounting piece to rotate.

The rotation of a feed tray frame and the rotation of a presser foot mounting piece in the existing coiling embroidery device realize synchronous rotation through the same set of driving mechanism, namely the presser foot mounting piece and the feed tray frame rotate synchronously, and the random needle-punching embroidery stitch rotates. As the size of the material tray increases, the problem of synchronous rotation of the material tray frame and the presser foot mounting piece is increasingly prominent. The existing coiling embroidery device needs to operate at a high speed, when the size of a material tray is increased, the material tray rotates along with a presser foot mounting part, the rotational inertia is increased, once the stitch is turned, the presser foot mounting part and the material tray need to be changed along with the turning, the rotation inertia of the material tray is large, the material tray is not easy to turn around, and the material tray rotates in the process of rotation and is stiff and has a large amount of mechanical sound, so that serious mechanical abrasion is caused, and the overall embroidery efficiency is further influenced.

Therefore, the utility model realizes the rotation of the tray frame and the rotation of the presser foot mounting piece independently by two sets of driving mechanisms. Under independent drive, both can match the charging tray of small size and carry out the synchronous rotation of charging tray frame and presser foot installed part, also can match the charging tray of large size and carry out the asynchronous rotation of charging tray frame and presser foot installed part, drive control is more nimble like this. Under independent control, the rotating speed of the feed tray frame and the rotation of the presser foot mounting piece are asynchronous, and the presser foot mounting piece rotates synchronously along with the stitch, so that the requirement of high-speed running of the coiling embroidery can be met even if the size of the feed tray is large without serious mechanical wear, and the problem existing in the prior art is solved.

In addition, the existing presser foot mounting piece is also used for mounting a swing rod, and for this reason, the existing coiling embroidery device is also provided with a driving mechanism for driving the swing rod to swing, and the driving mechanism is used for finishing the binding embroidery of the rope or the belt when the swing rod is controlled to swing back and forth. The utility model relates to two sets of driving mechanisms which respectively drive the tray frame to rotate and the presser foot to rotate, so that the rotation of the presser foot mounting piece can be independently realized. That is, the swing rod and the driving mechanism required by the swing rod can be omitted, and the presser foot rotating driving mechanism is directly utilized to control the rotation of the presser foot mounting part to complete the binding and embroidering of the existing rope or belt.

The above improvement is not only simplified in structure, but also has different technical effects in embroidering. The existing swing type structure needs to reach the highest point and the lowest point in the swing process, so that the reciprocating operation is realized. This causes the string or the ribbon to be pulled out to different degrees, so that the tension is unstable, thereby affecting the quality of embroidery. And adopt revolution mechanic after the improvement, the presser foot installed part radius of rotation is unchangeable, and rope or belt pull are stable, and it is effectual to embroider.

Preferably, the presser foot rotation driving mechanism comprises a presser foot rotation motor arranged on the casing, a first driving wheel sleeved on a driving shaft of the presser foot rotation motor, a first driven wheel sleeved outside the fixed sleeve, and a first transmission belt sleeved between the first driving wheel and the first driven wheel; the first driven wheel is keyed to the presser foot sleeve.

Preferably, the tray driving mechanism comprises a tray driving motor arranged on the casing, a second driving wheel sleeved on a driving shaft of the tray driving motor, a second driven wheel fixed on the shaft sleeve, and a second transmission belt sleeved between the second driving wheel and the second driven wheel.

Preferably, the presser foot part further comprises a presser foot lifting driving mechanism for driving the presser foot sleeve to move up and down so as to drive the presser foot mounting part to lift.

Preferably, the presser foot lifting driving mechanism comprises a presser foot lifting driving motor and a guide post which are arranged on the machine shell, and a presser foot connecting piece which is sleeved on the guide post and is connected with the presser foot sleeve; the guide post vertically penetrates through the machine shell, and the presser foot lifting driving motor drives the presser foot connecting piece to lift and slide along the guide post.

Preferably, the coiling embroidery device also comprises a feeding frame and a feeding lifting driving motor; the feeding frame is fixed on the feeding sleeve, and the tail end of the guide column is connected with the feeding sleeve; the feeding lifting driving motor is arranged on the shell and used for driving the guide column to drive the feeding sleeve to move up and down so as to drive the feeding frame to lift in the vertical direction or swing transversely; the charging tray driving mechanism drives the feeding sleeve to rotate when driving the shaft sleeve to rotate so as to drive the feeding frame to rotate.

Preferably, the belt coiling embroidery device is provided with a main shaft connected with the flat embroidery device, and the main shaft is provided with a first driving wheel; a second driving wheel is arranged on the cam shaft of the needle rod part, and the first driving wheel is connected with the second driving wheel through a main driving belt; the camshaft is provided with a separating mechanism for separating the transmission connection state of the first transmission wheel and the second transmission wheel, so that the coiling embroidery operation can be separated and stopped rotating during the flat embroidery operation.

Preferably, the separating mechanism comprises a separating driver, a separating connecting piece, a separating disc and a pin column which are arranged on the shell; the separating disc is sleeved on the camshaft and positioned on the outer side of the second driving wheel, the separating connecting piece is respectively connected with the separating disc and the separating driver, and the pin column is axially arranged at a pin hole on the second driving wheel; when the separation driver drives the separation discs to be far away from the second driving wheel, the transmission connection state of the first driving wheel and the second driving wheel is separated; when the separating driver drives the separating disc to be close to the second driving wheel, the separating disc acts on the pin column extending out of the pin hole, so that the pin column is inserted into the pin hole until the separating disc is flush with the second driving wheel, the pin column is fully inserted into the pin hole, and at the moment, the first driving wheel and the second driving wheel are kept in a transmission connection state.

The utility model has the following beneficial effects:

the belt embroidery device of the utility model changes one set of driving mechanism for rotating the belt frame and the presser foot mounting piece of the existing control disc into two sets of independent driving mechanisms, can independently control the synchronous/asynchronous rotation of the belt frame and the presser foot mounting piece, and has more flexible control; when the high-speed running speed of the coiling embroidery device cannot be followed due to the large size of the material tray, the two sets of independent driving mechanisms can be used for controlling the material tray frame and the presser foot mounting piece to rotate asynchronously, and the problems of mechanical abrasion and low embroidery efficiency generated during synchronous rotation are solved. Furthermore, the coiling embroidery device can be used for directly controlling the rotation of the presser foot mounting piece by utilizing the presser foot rotation driving mechanism without installing the swing rod and a driving mechanism required by the swing rod to finish the binding embroidery of the existing rope or belt, and the structure is simpler.

Drawings

FIG. 1 is a perspective view (left front oblique side view) of a ribbon embroidery device of the present invention;

FIG. 2 is a perspective view (forward view) of a ribbon embroidery device according to the present invention;

FIG. 3 is a schematic structural view of a presser foot portion of a ribbon embroidery device according to the present invention;

FIG. 4 is a partial schematic view of an embodiment of a blanking tray mounted on a ribbon embroidery device;

fig. 5 is a partial structure view of another embodiment of a blanking tray mounted on a coiling embroidery device;

fig. 6 is a partial structure view of another embodiment of a blanking tray mounted on a coiling embroidery device;

fig. 7 is a perspective view (right rear oblique side view) of a ribbon embroidery device according to the present invention.

Detailed Description

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

Referring to fig. 1 and 2, the present invention provides a ribbon embroidery device, which includes a housing 10, a needle bar portion, a presser foot portion, and a tray portion. The needle bar part comprises a needle bar 11 and a needle bar driving mechanism. The needle bar driving mechanism comprises a cam and a connecting rod mechanism. 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 belt embroidery device is used independently, the needle rod driving mechanism can be arranged to independently drive the cam to rotate, and then the connecting rod mechanism drives the needle rod to move. The presser foot part comprises a presser foot sleeve 22, a presser foot mounting part 23 connected with the presser foot sleeve, and a presser foot rotation driving mechanism. The presser foot sleeve 22 is used to mount the presser foot 21 and the nozzle 24. The presser foot rotation drive mechanism is used for driving the presser foot mounting piece to rotate. The material tray part comprises a material tray frame 31, material trays 32 (generally two) are arranged on the material tray frame 31, and the material trays are used for conveying ropes, belts and other strip-shaped objects to a position to be embroidered to carry out embroidery on the belt.

The needle bar 11 vertically penetrates through the machine shell 10. The presser foot sleeve 22 is sleeved outside the needle bar 11 and movably connected with the needle bar 11. A fixing sleeve 55 is sleeved outside the presser foot sleeve 22, and the fixing sleeve 55 is fixed on the casing 10 (for example, an opening for installing the fixing sleeve 55 is formed at the bottom of the casing); the fixed sleeve 55 is sleeved with a shaft sleeve 33, and the shaft sleeve 33 is movably connected with the fixed sleeve 55. The material tray frame 31 is fixed outside the shaft sleeve 33. The tray part further comprises a tray driving mechanism, and the tray driving mechanism drives the shaft sleeve 33 to rotate so as to drive the tray frame 31 to rotate. The presser foot rotary drive mechanism drives the presser foot sleeve 22 to rotate to drive the presser foot mounting member 23 to rotate.

The presser foot rotation drive mechanism includes a presser foot rotation motor 41, a first drive pulley 42, a first driven pulley 43, and a first drive belt 44. The presser foot rotating motor 41 is arranged on the machine shell 10, the first driving wheel 42 is sleeved on the driving shaft of the presser foot rotating motor, the first driven wheel 43 is sleeved on the fixed sleeve, and the first driving wheel 42 is in transmission connection with the first driven wheel 43 through the first transmission belt 44. The presser foot sleeve is longer than the fixed sleeve and penetrates through two ends of the fixed sleeve. The first driven wheel is inserted into the key groove in the presser foot sleeve through a key, and key connection between the first driven wheel and the presser foot sleeve is achieved. When the presser foot rotating motor 41 is operated, the first driving wheel is driven to rotate, so as to drive the first driven wheel 43 to rotate, further drive the presser foot sleeve 22 to rotate, and drive the presser foot mounting member 23 to rotate. The present invention is not limited to the above driving method, and other driving methods such as chain transmission and the like can be adopted.

The tray driving mechanism comprises a tray driving motor 51, a second driving wheel 52, a second driven wheel 53 and a second transmission belt 54. The tray driving motor 51 is disposed on the casing 10, the second driving wheel 52 is sleeved on the tray driving motor driving shaft, the second driven wheel 53 is fixed on the shaft sleeve 33 (for example, the second driven wheel is sleeved outside the shaft sleeve, or the second driven wheel is embedded on the shaft sleeve), and the second driving wheel 52 is in transmission connection with the second driven wheel 53 through a second transmission belt 54. When the tray driving motor 51 works, the second driving wheel 52 is driven to rotate, the second driven wheel 53 is driven to rotate, the shaft sleeve 33 is driven to rotate, and the tray frame 31 is driven to rotate. The present invention is not limited to the above driving method, and other driving methods such as chain transmission and the like may be adopted.

The presser foot mounting may mount other auxiliary fittings such as a swing link in addition to the auxiliary fittings such as the presser foot 21, the nozzle 24, etc. And one or more auxiliary fittings may be installed as desired. The presser foot sleeve 22 connects the presser foot 21 and the nozzle 24 via the presser foot mounting 23. The upper end part of the presser foot mounting piece is of a sleeve structure, the lower end part of the presser foot mounting piece is of a sleeve structure with front and back sides hollowed out (see figure 3), the upper end part of the presser foot mounting piece is fixedly connected with the presser foot sleeve 22 in a sleeved mode, and a machine needle mounted at the tail end of a needle rod can penetrate through the presser foot mounting piece (when embroidery work is not carried out, the machine needle can be seen at the hollowed part of the lower end part of the presser foot mounting piece). And auxiliary assembly parts such as a pressure foot, a nozzle, a swing rod and the like are arranged at the lower end part of the pressure foot installation part. When mounting the nozzle and the presser foot, the nozzle 24 and the presser foot 21 are mounted on opposite sides of the presser foot mounting (one mounted on the left side of the lower end portion and the other mounted on the right side of the lower end portion).

As shown in fig. 3, the presser foot part further includes a presser foot elevation driving mechanism for driving the presser foot sleeve 22 to move up and down to drive the presser foot mounting member to move up and down. The presser foot lifting driving mechanism comprises a presser foot lifting driving motor 61, a guide post 62 and a presser foot connecting piece 63. The presser foot lifting drive motor 61 is arranged on the machine shell 10, and the guide post 62 vertically penetrates through the machine shell 10 and is fixed on the machine shell 10. The guide posts 62 are disposed parallel to the needle shaft. The presser foot lifting drive motor drives the presser foot connecting piece to move, the presser foot connecting piece can be directly driven to slide up and down along the guide post, and a lifting driving piece and a conveying assembly can be arranged between the presser foot lifting drive motor and the presser foot connecting piece. In the latter embodiment, one end of the presser foot connecting member is connected to the lifting driving member 64, and the other end is sleeved on the guide post 62, and the presser foot connecting member can slide up and down along the guide post. The presser foot lift drive motor is connected to the lift drive member 64 via a transmission member. The other end of the presser foot link 63 is also connected to the presser foot sleeve 22. Wherein, the transmission component can be realized by a belt wheel or a chain wheel and other transmission components. When the presser foot lifting drive motor drives the presser foot connecting piece to lift along the guide post, the presser foot connecting piece 63 drives the presser foot sleeve 22 to move up and down, and then drives the presser foot mounting piece to move up and down. As shown, the presser foot link 63 is comprised of two parts, including a first link member 631 that is mounted on the guide post 62 and a second link member 632 that connects to the presser foot sleeve 22. The first connecting sub 631 includes a first vertical plate parallel to the guide posts, and two first guide plates connected to both ends of the first vertical plate, respectively. The two first guide plates are provided with through holes, and the guide posts penetrate through the through holes of the two first guide plates. The second connector sub 632 includes a mounting plate fixedly connected to the first vertical plate of the first connector sub, and a connecting plate having one end connected to the mounting plate and the other end connected to the presser foot sleeve 22. One end of the connecting plate, which is connected with the presser foot sleeve 22, is in an open ring shape, an annular groove is formed outside the presser foot sleeve, and one end of the connecting plate in the open ring shape is clamped in the annular groove of the presser foot sleeve. The lifting driving member 64 includes a second vertical plate parallel to the guide posts 62, a driving block connected to the back of the second vertical plate, and two second guide plates connected to two ends of the second vertical plate respectively. The casing 10 is provided with a guide hole for moving the driving block up and down, and the driving block connects the transmission assembly with the presser foot lifting driving motor. The two second guide plates are provided with through holes, and the guide columns penetrate through the through holes of the two second guide plates. The second guide plate at the upper end of the second vertical plate is arranged above the first guide plate at the upper end of the first vertical plate; the second guide plate at the lower end of the second vertical plate is arranged below the first guide plate at the upper end of the first vertical plate and is arranged above the first guide plate at the lower end of the first vertical plate. And a spring is sleeved on the guide post between the second guide plate at the lower end of the second vertical plate and the first guide plate at the lower end of the first vertical plate and used for buffering. When the presser foot lifting drive motor drives the drive block of the lifting drive piece to lift, the lifting drive piece drives the first connecting sub-piece to move along the guide post by utilizing the two second guide plates, and then the second connecting sub-piece drives the presser foot sleeve to lift.

As shown in fig. 4, the coiling embroidery device further comprises a feeding frame 70 and a feeding lifting drive motor 73, wherein a feeding sleeve 71 is sleeved outside the shaft sleeve 33, the feeding sleeve 71 is movably connected with the shaft sleeve 33, and the feeding frame 70 is fixedly connected with the feeding sleeve 71. When the shaft sleeve 33 is driven to rotate, the tray driving mechanism drives the feeding sleeve 71 to rotate so as to drive the feeding frame 70 to rotate. The tail end of the guide column is connected with the feeding sleeve; the feeding lifting driving motor 73 is arranged on the machine shell 10 and is used for driving the guide post to drive the feeding sleeve to move up and down so as to drive the feeding frame 70 to lift up and down in the vertical direction or swing transversely. Specifically, the guide posts 62 are provided with fasteners 66 at their ends that pass outside the housing. The fixing piece comprises a fixing block sleeved at the tail end of the guide column 62 and an open annular connecting plate, wherein one end of the open annular connecting plate is connected with the fixing block, and the other end of the open annular connecting plate is connected with the feeding sleeve 71. An annular groove is formed outside the feeding sleeve 71, and the open annular connecting plate is clamped in the annular groove of the feeding sleeve.

As shown in fig. 4-6, the feeding racks 70 are disposed between the trays, each feeding rack 70 is provided with a plurality of feeding holes 701 according to the number of the trays, each feeding hole 701 is disposed corresponding to one tray, and the ropes or tapes on the trays can pass through the feeding holes. The feeding rack is not limited to the feeding hole, a plurality of transverse rods can be arranged on the feeding rack, corresponding transverse rods are arranged on the side of each material tray, and ropes or belts on the material trays can bypass the transverse rods or penetrate through gaps between the transverse rods on the same side.

When the feeding frame is driven to lift in the vertical direction, a feeding connecting piece is arranged between the feeding sleeve and the feeding frame 70 and is respectively and fixedly connected with the feeding sleeve 71 and the feeding frame 70. In this manner, the rope or webbing carried on the tray can be fed sequentially through the carriage (e.g., through the feed holes 701 or around the crossbar) to the nozzle at the presser foot mount, the presser foot. Further, the tray part also comprises a fulcrum part, and the fulcrum part can be in any structural form such as a cross bar, a pin, a guide sleeve, a guide wheel and a guide opening. When the fulcrum part is a cross rod, a pin column, a guide sleeve and a guide wheel structure, the fulcrum part can be directly or indirectly fixed on the shaft sleeve (when the fulcrum part is indirectly installed, the fulcrum part can be installed on the material tray frame) and can rotate along with the rotation of the shaft sleeve. As shown in fig. 1 and 2, the fulcrum component is arranged on the conveying frame and is fixed on the shaft sleeve through the conveying frame. The utility model is not limited to the mode that the fulcrum part is arranged on the conveying frame and fixed on the shaft sleeve, and only the description is given; the conveying frame can also be deformed in any structure according to the requirement. The conveying frame 72 includes a mounting assembly 722, and a plurality of conveying supports 721 connected to the mounting assembly 722. Each of the conveying supports 721 faces one side of the material tray, and the number of the conveying supports corresponds to the number of the material trays one to one. The carriage 72 can rotate as the sleeve 33 rotates. The conveying frame 72 is provided with a conveying hole, and the conveying hole and the frame body part provided with the conveying hole form a fulcrum part to be used as a fixing point for supporting a rope or a belt. The order of the penetration may be through the feeding frame (e.g., through the feeding hole 701 or around the cross bar), and then through the fulcrum member (e.g., around the fulcrum member, or through the feeding hole of the fulcrum member); or may first pass through the fulcrum member (e.g., around the fulcrum member, or through the delivery hole of the fulcrum member), and then pass through the carriage (e.g., through the delivery hole 701 or around the crossbar).

Specifically, as shown in fig. 4, the transport stent 721 includes a first inclined plate 7211 inclined downward from the tray side to the leg sleeve side, and a second inclined plate 7212 inclined downward from the leg sleeve side to the tray side. One end of the first inclined plate 7211 is connected to the mounting header 722, and the other end is connected to the second inclined plate 7212. The second inclined plate 7212 is provided with a conveying hole. The lifting type feeding frame is structured as shown in fig. 4, and the feeding frame 70 is an annular structure with an opening, and is arranged around a feeding sleeve 71. The feeding frame 70 is fixedly connected with the feeding sleeve 71 through a vertical feeding connecting piece 74, and the feeding frame 70 is horizontally arranged relative to the needle plate. The utility model is not limited to the structure shown in the figure, and can also be a feeding rack with other flat plate structures or a feeding rack with other structures which can realize lifting and pulling lines. In fig. 4, the feeding frame 70 is provided below the mounting header 722, and the feeding frame 70 can move up and down between the mounting header 722 and the end of the first inclined plate 7211. In one embodiment, each of the conveying brackets is provided with a conveying hole, and particularly, the second inclined plate is provided with a conveying hole. The belt or rope conveyed on the material tray can pass through the conveying hole and the feeding hole in sequence and then is conveyed to the presser foot position or the pipe nozzle position. In another embodiment, each of the conveying brackets is provided with two conveying holes, and the second inclined plate 7212 is provided with a first conveying hole 7212A and a second conveying hole 7212B in sequence from the side of the charging tray to the side of the presser foot sleeve. The first and second delivery holes 7212A and 7212B and a portion of the frame between the first and second delivery holes 7212A and 7212B constitute a fulcrum member to serve as a fixing point for supporting a string or a band. The section of the frame between the two feed holes can also be regarded as a fulcrum member in the form of a cross bar. During the operation of embroidering, the rope or belt on the tray passes through the first feeding hole 7212A from the bottom upwards, then passes through the feeding hole 701 from the top downwards, and then passes through the feeding presser foot or nozzle from the top downwards through the second feeding hole 7212B. Alternatively, the rope or the belt on the tray passes through the bottom of the first feeding hole 7212A upwards, then passes through the feeding hole 701 from the top downwards, and then is fed to the presser foot or the nozzle. In addition, the rope or the belt can also sequentially pass through the feeding hole and the conveying hole.

When the feeding frame 70 is driven to swing transversely, the tray part further comprises a fulcrum part, and the fulcrum part can be in any structural form such as a cross rod, a pin, a guide sleeve, a guide wheel and a guide opening. When the fulcrum part is a cross rod, a pin column, a guide sleeve and a guide wheel structure, the fulcrum part can be directly or indirectly fixed on the shaft sleeve (when the fulcrum part is indirectly installed, the fulcrum part can be installed on the material tray frame) and can rotate along with the rotation of the shaft sleeve. The fulcrum member is disposed above or below the cradle through which a rope or ribbon conveyed on a tray can be fed (e.g., through feed hole 701 or around a crossbar) to the nozzle, the presser foot, at the presser foot mount of the presser foot portion. As shown in fig. 5 and 6, the fulcrum component is arranged on the upper structure of the conveying frame and is fixed on the shaft sleeve through the conveying frame. The carrier 72 includes a mounting assembly 722 and a plurality of carrier supports 721 attached to the mounting assembly 722. Each of the conveying supports 721 faces one side of the material tray, and the number of the conveying supports corresponds to the number of the material trays one to one. The carriage 72 can rotate as the sleeve 33 rotates. The conveying frame 72 is provided with a conveying hole, and the conveying hole and the frame body part provided with the conveying hole form a fulcrum part to be used as a fixing point for supporting a rope or a belt. The order of passing can be that the feeding frame passes through the feeding hole (such as passing through the feeding hole 701 or bypassing the cross bar) and passes through the conveying hole, and then passes through the fulcrum component (such as bypassing the fulcrum component or passing through the conveying hole of the fulcrum component); or may first pass through the fulcrum member (e.g., around the fulcrum member, or through a delivery hole of the fulcrum member) and then pass through the cradle (e.g., through the delivery hole 701 or around the crossbar).

As shown in fig. 5 and 6, the transport support 721 includes a first inclined plate 7211 inclined downward from the tray side to the presser foot sleeve side, and a second inclined plate 7212 inclined downward from the presser foot sleeve side to the tray side. One end of the first inclined plate 7211 is connected to the mounting header 722, and the other end is connected to the second inclined plate 7212. The second inclined plate 7212 is provided with a conveying hole. In one embodiment, each of the conveying brackets is provided with a conveying hole, and particularly, the second inclined plate is provided with a conveying hole. The belt or rope conveyed on the material tray can pass through the conveying hole and the feeding hole in sequence and then is conveyed to the presser foot position or the pipe nozzle position. In another embodiment, each of the conveying brackets is provided with two conveying holes, and the second inclined plate 7212 is provided with a first conveying hole 7212A and a second conveying hole 7212B in sequence from the material tray side to the presser foot sleeve side. In the coiling embroidery operation, when the fulcrum part is positioned below the feeding frame, the rope or the belt on the material tray passes through the bottom of the first feeding hole 7212A upwards, then passes through the feeding hole 701 from top to bottom, and then passes through the feeding presser foot or the nozzle from the top to bottom of the second feeding hole 7212B. Alternatively, the rope or the belt on the tray passes through the bottom of the first feeding hole 7212A upwards, then passes through the feeding hole from top to bottom, and then is fed to the presser foot or the nozzle. In addition, the rope or the belt can also sequentially pass through the feeding hole and the conveying hole. In the coiling embroidery operation, when the fulcrum part is positioned above the feeding frame, the rope or the belt on the material tray passes through the bottom of the first conveying hole 7212A upwards, then passes through the second conveying hole 7212B from top to bottom, and then passes through the feeding presser foot position or the nozzle position from the top of the feeding hole 701 downwards. Alternatively, the rope or the belt on the tray passes through the bottom of the first conveying hole 7212A or the second conveying hole 7212B upwards, then passes through the feeding hole from top to bottom, and then is fed to the presser foot or the nozzle. In addition, the rope or the belt can also sequentially pass through the feeding hole and the conveying hole.

In one embodiment, a feeding connecting piece 74 is arranged between the feeding sleeve 71 and the feeding frame 70, the feeding connecting piece 74 is fixedly connected with the feeding sleeve 71, and the feeding connecting piece 74 is movably connected with the feeding frame 70, so that when the feeding connecting piece is lifted, the feeding frame swings transversely relative to the feeding connecting piece.

As shown in fig. 5, the feeding rack is divided into two feeding sub-racks, and each feeding sub-rack 702 is arranged corresponding to one tray. The two feeding sub-frames are corner pieces, holes are formed in the end portions of the two sides and the corners of the corner pieces, and the corner pieces are L-shaped or similar L-shaped structures with two parts enclosing into corners. The feeding connecting piece is a vertical connecting piece, a pin 741 is arranged on the vertical connecting piece, the pin 741 penetrates through holes C in the end portions of the two overlapped feeding sub-frames, and when the feeding connecting piece is lifted, the pin 741 drives the two feeding sub-frames to move. The feeding sub-frame 702 is connected with the conveying frame 72 through a connecting rod 703, and the connecting rod 703 passes through a hole at a corner and fixes two ends of the connecting rod 703 on the conveying frame 72. Specifically, when the feeder link is raised, the pin pulls on both feeder subslots, and after one side 702a of the feeder subslot is pulled, the other side 702b swings away from the tray. When the feeding connecting piece descends, the pin 741 drives the two feeding racks to move downwards, one side 702a of the feeding sub-rack is pulled downwards, and the other side swings towards the direction close to the material tray. The hole on the other side 702b of the feeding sub-frame is used as a feeding hole, and a cross bar can be arranged at the hole. The utility model is not limited to the structure shown in the figure, and can also be other feeding racks capable of realizing the swinging drawing and releasing line structure. The feed holes of the carrier shown in fig. 5 are located below the feeder frame (it can be seen that the fulcrum members are located below the feeder frame) and the feeder sub-frame swings between the tray and the carrier.

When the feeding frame is driven to swing transversely, in another embodiment, a feeding connecting piece 74 is arranged between the feeding sleeve 71 and the feeding frame 70, and the feeding connecting piece is movably connected with the feeding sleeve and the feeding frame respectively, so that when the feeding sleeve is lifted, the feeding connecting piece drives the feeding frame to swing transversely.

As shown in fig. 6, the feeding rack comprises two feeding sub-racks 702, and each feeding sub-rack 702 is arranged corresponding to one tray. In one embodiment, the feeder sub-rack 702 includes a corner piece 7021 and a feeder piece 7022. The two ends and the corners of the corner part 7021 are provided with holes, and the corner part is in an L shape or a structure similar to the L shape and the like and has a corner surrounded by two parts. The hole at the corner of the corner part 7021 is fixed on the shaft sleeve through a pin 741, the end of one side of the corner part 7021 is hinged with one end of the feeding connecting part 74, and the hole at the end of the other side of the corner part 7021 is fixedly connected with the feeding part 7022. The feeding piece is provided with a feeding hole 701. The feeding piece can be of a structure shown in the figure and is provided with a fixing part fixedly connected with the corner piece and a corner part connected with the fixing part, and the corner part faces the side of the charging tray and is provided with a feeding hole. The feeding member is not limited to the above structure, and may be a straight plate or the like, and has a feeding hole formed in a direction facing the operator. In another embodiment, the corner piece and the feeding piece of the former embodiment are integrally formed. The other end of the feeding connecting piece 74 is movably connected with the feeding sleeve 71 (for example, hinged connection, or pin-and-chute matched movable connection, etc.). When the feeding connecting piece rises, the feeding connecting piece drives one side of the feeding frame to rise, and the other side of the feeding frame swings towards the direction far away from the material tray. When the feeding connecting piece descends, the feeding connecting piece drives one side of the feeding frame to be pulled down, and the other side of the feeding frame swings towards the direction close to the material tray. The utility model is not limited to the structure shown in the figure, and can also be other feeding racks capable of realizing the swinging drawing and releasing line structure. The delivery holes of the delivery racks in fig. 6 are located above the feed rack (visible fulcrum parts are located above the feed rack), and the feed sub-rack swings between the two delivery racks.

The utility model only provides three examples of fig. 4, 5 and 6 to illustrate different feeding modes, and is not limited to the structure in the drawings. When the cradle adopts an elevating movement, any form of construction that satisfies the following principle is within the scope of the explanation herein. Case one, only adopt the pay-off frame to carry out elevating movement: the feeding frame moves from top to bottom, and the sum of the distance from the material tray to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle is larger than the sum of the distance from the material tray to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle in the low position. This allows the rope or ribbon to be pulled from the tray in the high position and paid off in the low position. And in the second situation, the feeding frame is adopted for lifting motion, and a fulcrum part is arranged. When a fulcrum member is employed, the fulcrum may be located between the cradle and the tray or between the cradle and the presser foot mounting member. The feeding frame moves up and down, and the sum of the distance from the material tray to the fulcrum part, the distance from the fulcrum part to the feeding frame, and the distance from the feeding frame to the presser foot and the nozzle is larger than the sum of the distance from the material tray to the fulcrum part, the distance from the fulcrum part to the feeding frame, and the distance from the feeding frame to the presser foot and the nozzle in the low position. Or the feeding frame moves up and down, and the sum of the distance from the material tray to the feeding frame, the distance from the feeding frame to the fulcrum component, the distance from the fulcrum component to the presser foot and the nozzle at the high position is larger than the sum of the distance from the material tray to the feeding frame, the distance from the feeding frame to the fulcrum component, the distance from the fulcrum component to the presser foot and the nozzle at the low position. This allows the rope or ribbon to be pulled from the tray in the high position and paid off in the low position. When two fulcrum parts are adopted, the first fulcrum part is positioned between the feeding frame and the material tray, and the second fulcrum part is positioned between the feeding frame and the presser foot mounting part. The feeding frame moves up and down, and the sum of the distance from the material tray to the first fulcrum component, the distance from the first fulcrum component to the feeding frame, the distance from the feeding frame to the second fulcrum component and the distance from the second fulcrum component to the presser foot and the nozzle is larger than the sum of the distance from the material tray to the first fulcrum component, the distance from the first fulcrum component to the feeding frame, the distance from the feeding frame to the second fulcrum component and the distance from the second fulcrum component to the presser foot and the nozzle in the low position. This case can set the number of fulcrum members, and the position of the fulcrum member, as needed. And in case three, the feeding frame is adopted for swinging motion. Taking the feeding frame swinging horizontally from right to left as an example, the sum of the distance from the material tray to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle is larger than the sum of the distance from the material tray to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle when the feeding frame is on the left side. This allows the string or band to be pulled from the tray on the right and paid out on the left. The swing direction can be set according to the requirement under the condition, and swing in different directions can be realized by driving the feeding sleeve to ascend or descend according to a specific structure. And in the fourth case, the feeding frame is adopted for swinging motion, and a fulcrum part is arranged. When one fulcrum member is employed, the fulcrum member may be located above or below the magazine. Taking the case that the fulcrum component is positioned above the feeding frame and the feeding frame transversely swings from right to left as an example, the sum of the distance from the material tray to the fulcrum component, the distance from the fulcrum component to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle is larger than the sum of the distance from the material tray to the fulcrum component, the distance from the fulcrum component to the feeding frame and the distance from the feeding frame to the presser foot and the nozzle when the fulcrum component is positioned on the right side. This allows the string or ribbon to be pulled from the tray on the right and paid out on the left. When two fulcrum parts are adopted, the first fulcrum part is arranged above the feeding frame, and the second fulcrum part is arranged below the feeding frame. Taking the feeding frame as an example of horizontal swinging from right to left, the sum of the distance from the material tray to the first fulcrum component, the distance from the first fulcrum component to the feeding frame, the distance from the feeding frame to the second fulcrum component, the distance from the second fulcrum component to the presser foot and the nozzle at the right side is larger than the sum of the distance from the material tray to the first fulcrum component, the distance from the first fulcrum component to the feeding frame, the distance from the feeding frame to the second fulcrum component, the distance from the second fulcrum component to the presser foot and the nozzle at the left side. This allows the string or ribbon to be pulled from the tray on the right and paid out on the left. This case can set the number of fulcrum members, and the position of the fulcrum member, as needed. And the swinging direction can be set as required, and swinging in different directions can be realized by driving the feeding sleeve to ascend or descend according to a specific structure.

When the operation is embroidered to the dribbling, rope or belt are pinned the back by the upper thread, and rope or belt that realize carrying on the charging tray through the lift of control pay-off frame are come out and transfer by the pull, even charging tray size grow like this, the tabouret removes and also can not produce very big mechanical pulling power, can avoid the embroidery to draw the problem of warping. When the feeding frame in the coiling embroidery device can ascend and descend in the vertical direction, the specific control flow is as follows: when the control machine needle is penetrated into the embroidery material, the rope or the belt is locked by the upper thread, the feeding frame is controlled to move upwards by the feeding lifting driving motor, and the rope or the belt on the material tray is pulled out from the material tray. And then, controlling the machine needle to move upwards to separate from the embroidery material, and controlling the feeding frame to move downwards and synchronously controlling the embroidery frame to move by using the feeding lifting driving motor (or firstly controlling the feeding lifting driving mechanism to drive the feeding frame to descend so as to lower the rope or the belt drawn from the material tray, and then controlling the embroidery frame to move). The pay-off frame can the unwrapping wire when the downward motion, and the tabouret pulls rope or belt to remove, can solve because of the charging tray size grow and produce very big mechanical pulling power when leading to the tabouret to remove, can draw the variant to the embroidery then, causes the problem that the embroidery is bad. When the feeding frame in the coiling embroidery device can swing transversely, the specific control flow is as follows: when the control machine needle is penetrated into the embroidery material, the rope or the belt is locked by the upper thread, and the feeding frame is controlled by the feeding lifting driving motor to transversely swing towards one direction of the direction far away from the material tray and the direction close to the material tray so as to draw out the rope or the belt on the material tray. Then, the needle is controlled to move upwards to leave the embroidery material, the feeding frame is controlled to transversely swing towards the direction opposite to the swinging direction by the feeding lifting driving motor so as to lower the rope or the belt drawn from the material tray (or the feeding lifting driving mechanism is controlled to drive the feeding frame to transversely swing towards the direction opposite to the swinging direction so as to lower the rope or the belt drawn from the material tray, and then the embroidery frame is controlled to move). Through the mode unwrapping wire of wobbling, the tabouret pulls rope or belt to remove, can solve and produce very big mechanical pulling power when leading to the tabouret to remove because of charging tray size grow, then can draw the variant to the embroidery, causes the bad problem of embroidery.

When the coiling embroidery device and the flat embroidery device are arranged on a computer embroidery machine together, the problems of mechanical abrasion and thread picking loosening caused by the follow-up of the coiling embroidery device during the operation of the flat embroidery device are avoided, and the coiling embroidery device also comprises a separating mechanism. As shown in fig. 7, the main shaft 1 is provided with a first transmission wheel 1A, and the camshaft 2 is provided with a second transmission wheel 2A. The first transmission wheel 1A is connected with the second transmission wheel 2A through a main transmission belt 3. A separating mechanism is arranged at the cam shaft 2 of the cam and used for separating the transmission connection state of the first transmission wheel 1A and the second transmission wheel 2A, so that the coiling embroidery operation can be separated and stopped rotating during the flat embroidery operation.

Specifically, the separating mechanism includes a separating driver 80, a separating connector 81, a separating disk 82 and a pin 83 which are arranged on the casing 10. The separating disc 82 is sleeved on the camshaft 2 and located at the outer side of the second driving wheel 2A, the separating connecting piece 81 is respectively connected with the separating disc 82 and the separating driver 80, and the pin 83 is axially arranged at the pin hole on the second driving wheel 2A. The separating driver 80 may be an air cylinder, and when the air cylinder extends axially outwards, and the separating driver 80 drives the separating disc 82 to be away from the second transmission wheel 2A, the transmission connection state of the first transmission wheel 1A and the second transmission wheel 2A is separated. When the cylinder retracts axially, the separating driver 80 drives the separating disc 82 to approach the second transmission wheel 2A, the separating disc 82 acts on the pin 83 extending out of the pin hole, so that the pin 83 is inserted into the pin hole until the separating disc 82 is flush with the second transmission wheel 2A, the pin hole 82 is full of the pin hole, and the first transmission wheel 1A and the second transmission wheel 2A are in transmission connection.

The coiling embroidery device can control the material tray driving mechanism to drive the material tray frame and control the presser foot rotation driving mechanism to drive the presser foot mounting piece to rotate under asynchronous states; and the presser foot rotating driving mechanism is controlled to drive the presser foot mounting piece to randomly rotate the needle-punched stitch. Therefore, the presser foot mounting piece can rotate synchronously along with the needle-punched stitch, and the requirement of high-speed embroidery of the belt coiling embroidery can be met. Meanwhile, the material tray can rotate at a proper rotating speed according to the size matching of the material tray frame. Specifically, control charging tray actuating mechanism drive charging tray frame to and control presser foot rotary drive mechanism drive presser foot installed part, the concrete process of pivoted under asynchronous state includes: the rotation speed of the tray frame driven by the tray driving mechanism is controlled to be slower than the rotation speed of the presser foot mounting piece driven by the presser foot driving mechanism. The material tray frame can control the rotating speed of the material tray frame to be slower than the rotating speed of the presser foot mounting piece under the condition that the embroidery thread amount of the machine needle is met. For example, the feed tray frame can be controlled to stop rotating within 30 degrees of the line track, and only the presser foot mounting piece can be controlled to rotate. For another example, the rotation speed of the tray frame is controlled to be lower than that of the presser foot mounting piece.

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 given by way of example only and are not limiting of the utility model. 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 (8)

1. A disk embroidery device comprises a shell (10), a needle rod part, a foot pressing part and a disk part; the needle rod (11) of the needle rod part vertically penetrates through the casing (10), the presser foot sleeve (22) of the presser foot part is sleeved outside the needle rod (11), the presser foot sleeve (22) is sleeved with a fixing sleeve, the fixing sleeve is sleeved with a shaft sleeve (33), and the fixing sleeve is fixed on the casing (10); the presser foot part comprises a presser foot mounting piece (23) connected with a presser foot sleeve (22) and a presser foot rotation driving mechanism; the presser foot mounting piece is used for mounting the presser foot (21) and the nozzle (24); the tray part is characterized by comprising a tray frame (31) and a tray driving mechanism; the charging tray driving mechanism drives the shaft sleeve (33) to rotate so as to drive the charging tray frame (31) to rotate; the presser foot rotary driving mechanism drives the presser foot sleeve (22) to rotate so as to drive the presser foot mounting piece to rotate.

2. The disc tape embroidery device according to claim 1, wherein the presser foot rotation driving mechanism comprises a presser foot rotation motor (41) provided on the housing (10), a first driving wheel (42) sleeved on a driving shaft of the presser foot rotation motor, a first driven wheel (43) sleeved outside the fixed sleeve, and a first transmission belt (44) sleeved between the first driving wheel (42) and the first driven wheel (43); the first driven wheel is keyed to the presser foot sleeve.

3. The coiling embroidery device as claimed in claim 1, wherein said tray driving mechanism comprises a tray driving motor (51) disposed on said housing (10), a second driving wheel (52) sleeved on the tray driving motor driving shaft, a second driven wheel (53) fixed on said shaft sleeve (33), and a second transmission belt (54) sleeved between said second driving wheel (52) and said second driven wheel (53).

4. The apparatus as claimed in claim 1, wherein the presser foot part further comprises a presser foot elevation driving mechanism for driving the presser foot sleeve (22) to move up and down to drive the presser foot mounting part to move up and down.

5. The coiling embroidery device as claimed in claim 4, characterized in that said presser foot lifting driving mechanism comprises a presser foot lifting driving motor (61) and a guide post (62) arranged on said machine shell, a presser foot connector (63) sleeved on said guide post (62) and connected with said presser foot sleeve (22); the guide post (62) vertically penetrates through the machine shell (10), and the presser foot lifting drive motor (61) drives the presser foot connecting piece (63) to lift and slide along the guide post (62).

6. The coiling embroidery device as claimed in claim 5, characterized in that it further comprises a feeding rack (70), a feeding lifting drive motor; a feeding sleeve (71) is sleeved outside the shaft sleeve (33), and the feeding frame (70) is fixed on the feeding sleeve (71); the tail end of the guide column is connected with the feeding sleeve; the feeding lifting driving motor is arranged on the shell and used for driving the guide post to drive the feeding sleeve to move up and down so as to drive the feeding frame (70) to lift up and down or swing transversely in the vertical direction; the charging tray driving mechanism drives the feeding sleeve (71) to rotate when driving the shaft sleeve (33) to rotate so as to drive the feeding frame (70) to rotate.

7. The coiling embroidery device as claimed in claim 1, characterized in that the coiling embroidery device is provided with a main shaft (1) connected with a flat embroidery device, the main shaft (1) is provided with a first driving wheel (1A); a second transmission wheel (2A) is arranged on the cam shaft (2) of the needle rod part, and the first transmission wheel (1A) is connected with the second transmission wheel (2A) through a main transmission belt (3); the camshaft (2) is provided with a separating mechanism for separating the transmission connection state of the first transmission wheel (1A) and the second transmission wheel (2A), so that the coiling embroidery operation can be separated and stopped during the flat embroidery operation.

8. The coiling embroidery device as claimed in claim 7, characterized in that the separating mechanism comprises a separating driver (80), a separating connecting piece (81), a separating disc (82) and a pin (83) which are arranged on the machine shell; the separating disc (82) is sleeved on the camshaft (2) and located on the outer side of the second driving wheel (2A), the separating connecting piece (81) is respectively connected with the separating disc (82) and the separating driver (80), and the pin column (83) is axially arranged at a pin hole on the second driving wheel (2A); when the separating driver (80) drives the separating disc (82) to be far away from the second transmission wheel (2A), the transmission connection state of the first transmission wheel (1A) and the second transmission wheel (2A) is separated; when the separating driver (80) drives the separating disc (82) to be close to the second driving wheel (2A), the separating disc (82) acts on a pin (83) extending out of a pin hole, so that the pin (83) is inserted into the pin hole until the separating disc (82) is flush with the second driving wheel (2A), the pin hole is full of the pin (83), and at the moment, the first driving wheel (1A) and the second driving wheel (2A) are kept in a transmission connection state.

Images