CN111826932B

CN111826932B - Circular knife device for coiling embroidery or rope embroidery

Info

Publication number: CN111826932B
Application number: CN202010695236.7A
Authority: CN
Inventors: 周栋
Original assignee: Zhejiang Yuhao Intelligent Equipment Co ltd
Current assignee: Zhejiang Yuhao Intelligent Equipment Co ltd
Priority date: 2020-07-19
Filing date: 2020-07-19
Publication date: 2022-04-29
Anticipated expiration: 2040-07-19
Also published as: CN111826932A

Abstract

The embodiment of the invention provides a circular knife device for coiling embroidery or rope embroidery, belonging to the technical field of embroidery equipment, and the circular knife device for coiling embroidery or rope embroidery comprises: a fixing mechanism; a lifting mechanism, the lifting mechanism comprising: a lift assembly, the lift assembly comprising: a lifting base; a lifting body; the driving base is connected with the lifting base; the circular knife base is connected with the lifting base; the circular knife mechanism is arranged on the circular knife base and is provided with a blade; the driving mechanism is arranged on the driving base; the driving mechanism acts on the lifting body and the circular cutter mechanism respectively, the lifting body is lifted through the driving mechanism, and the blades in the circular cutter mechanism rotate through the driving mechanism. The technical effect of quickly cutting the embroidery material while keeping the stability of the rolled embroidery material is achieved.

Description

Circular knife device for coiling embroidery or rope embroidery

Technical Field

The invention relates to the technical field of embroidery equipment, in particular to a circular knife device for coiling embroidery or rope embroidery.

Background

The coiling embroidery and the rope embroidery are two embroidery modes, the raw materials of the coiling embroidery and the rope embroidery are coiled embroidery materials, and the specific working mode is as follows: the coiled embroidery material is put on a machine head of an embroidery machine, and then the coiling embroidery or the rope embroidery is carried out on the object to be embroidered below through the continuous movement of the machine head so as to produce the finished embroidery. And because the coiled embroidery material is adopted, after one-time embroidery operation is finished, the connection between the embroidery material and the embroidery material needs to be cut off so as to facilitate the output of the embroidery material after the embroidery is finished and facilitate the subsequent embroidery operation of the machine head with the residual embroidery material.

However, the existing mode of cutting off the embroidery material is that a worker cuts off the embroidery material manually, so that not only is one labor wasted, but also time is delayed due to the fact that the embroidery material is cut off manually, particularly, the embroidery object is a large-width fabric, and the worker needs to bend forward, bend over and stretch arms when the embroidery material is cut off manually. In addition, when the outer section of the embroidery material is cut manually, the rolled embroidery material is easily pulled excessively, so that the embroidery material needs to be rewound properly before the next embroidery.

Therefore, the technical problems of the prior art are as follows: the manual cutting of the embroidery material is slow and the rolled embroidery material is easily pulled.

Disclosure of Invention

The embodiment of the application provides a circular knife device for coiling embroidery or rope embroidery, which solves the technical problems that in the prior art, the speed of manually cutting embroidery materials is low, and rolled embroidery materials are easily pulled; the technical effect of quickly cutting the embroidery material while keeping the stability of the rolled embroidery material is achieved.

A circular knife device for coiling embroidery or rope embroidery comprises: a telescoping mechanism; a fixing mechanism; the fixing mechanism is arranged on the telescopic mechanism; a lifting mechanism, the lifting mechanism comprising: a lift assembly, the lift assembly comprising: a lifting base; the lifting body can move in a lifting way; the first end of the lifting body is connected to the fixing mechanism, and the second end of the lifting body is connected to the lifting base; the driving base is directly or indirectly connected with the lifting base; the circular knife base is directly or indirectly connected with the lifting base; the circular knife mechanism is arranged on the circular knife base and is provided with a blade; the driving mechanism is arranged on the driving base; the driving mechanism acts on the lifting body and the circular cutter mechanism respectively, the lifting body is lifted through the driving mechanism, and the blades in the circular cutter mechanism rotate through the driving mechanism.

Preferably, the elevating body includes: the lifting platform is fixed on the fixing mechanism; the first end of the worm wheel shaft is movably connected to the lifting base, and the second end of the worm wheel shaft is in threaded connection with the lifting platform; the worm wheel is sleeved on the worm wheel shaft, so that the worm wheel drives the worm wheel shaft to rotate; the worm is arranged on the lifting base and meshed with the worm wheel; the worm acts on the worm wheel, and the worm wheel shaft is enabled to move up and down relative to the lifting platform through the worm wheel, so that the lifting base is lifted and lowered relative to the fixing mechanism.

Preferably, the worm wheel is located below the lifting table.

Preferably, the circular knife base is provided with a first fitting position, and the circular knife mechanism is provided to penetrate the first fitting position.

Preferably, the circular knife mechanism includes: the circular knife shaft is arranged on the upper first assembly position, a bearing is arranged between the circular knife shaft and the first assembly position, and the circular knife shaft can freely rotate through the bearing; the blade is sleeved on the circular cutter shaft.

Preferably, the fixing mechanism includes: the lower end of the take-up base plate is provided with a take-up body which can take up embroidery materials; the thread picking body is located below the circular knife mechanism, and embroidery materials are located below the circular knife mechanism through the thread picking body.

Preferably, the circular knife device for coiling embroidery or rope embroidery further comprises: a presser foot mechanism, the presser foot mechanism comprising: the presser foot corresponds to the thread picking body and is positioned above the thread picking body; the connecting rod is respectively connected with the presser foot and the circular knife base and drives the presser foot to move up and down through the connecting rod; the presser foot has a first state and a second state relative to the line picking body, and the presser foot is attached to the line picking body in the first state; in the second state, the presser foot is separated from the thread take-up body.

Preferably, the circular knife base is provided with a second assembling position relative to the connecting rod, and the second assembling position is concave; the connecting rod comprises a rod head and a rod body, the rod head is positioned in the second assembly position, and the cross section size of the rod head is larger than that of the rod body; the presser foot mechanism further comprises a limiting plate, the limiting plate is connected with the circular knife base, a limiting hole is formed in the limiting plate relative to the rod body, and the cross section size of the limiting hole is smaller than that of the rod head, so that the rod head can move up and down in the second assembling position.

Preferably, the fixing mechanism is provided with a lifting groove, the lifting mechanism penetrates through the lifting groove, and the lifting track of the lifting mechanism is limited through the lifting groove.

Preferably, the drive mechanism includes: the driving motor is arranged on the driving base; and the transmission piece is connected with the lifting body and the circular knife mechanism.

Preferably, the transmission member is a closed transmission belt or transmission chain, and the lifting body and the circular knife mechanism are synchronously operated through the transmission member.

Preferably, the circular knife mechanism is located at the front end of the circular knife device, the lifting assembly is located behind the circular knife mechanism, and the center of gravity of the driving mechanism is located behind the lifting assembly, so that the lifting mechanism can stably lift relative to the fixing mechanism.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, the circular knife mechanism is arranged on the lifting mechanism by arranging the fixing mechanism and the lifting mechanism, so that the circular knife mechanism can cut downwards relative to the fixing mechanism; in addition, by optimally designing the structure of the driving mechanism, the driving mechanism can simultaneously drive the lifting body and the circular knife mechanism, so that the circular knife mechanism continuously rotates while moving downwards, and the circular knife mechanism can smoothly cut embroidery materials when contacting the embroidery materials; the technical problems that in the prior art, the speed of manually cutting the embroidery material is low, and the rolled embroidery material is easily pulled are solved; the technical effect of quickly cutting the embroidery material while keeping the stability of the rolled embroidery material is achieved.

2. In the embodiment of the application, through optimizing the concrete structure of the lifting body, the transmission mode of worm and gear for the lifting body can bear the whole weight of elevating system, circular knife mechanism and actuating mechanism, also guarantees that elevating system, circular knife mechanism and actuating mechanism lift in-process do not rock. In addition, the transmission mode of the worm gear and the screw rod is favorable for improving the lifting precision of the lifting assembly, and is also favorable for instantaneously stopping lifting action, so that the inertia action during sudden stop is avoided.

3. In the embodiment of the application, through optimizing circular knife mechanism, lifting unit and actuating mechanism's position distribution, with lifting unit setting in circular knife mechanism and actuating mechanism's centre for the weight at both ends is even relatively around the lift base, with the problem of reducing the lift in-process to one side slope. In addition, through set up the lift groove on fixed establishment, and the lift groove is for erecting the groove for when elevating system worn to establish in the lift inslot, elevating system is more stable at the lift in-process.

4. In the embodiment of the application, the line picking body is arranged on the fixing mechanism, the presser foot mechanism is arranged on the circular knife base, and the presser foot mechanism is positioned above the line picking body; the presser foot mechanism moves downwards relative to the fixing mechanism along with the lifting mechanism, so that the presser foot mechanism is matched with the thread picking body to press the left end and the right end of the embroidery material, the middle part of the embroidery material is in a fixed state, and the circular knife mechanism can smoothly cut off the embroidery material part between the two presser feet when moving downwards along with the lifting mechanism.

Drawings

Fig. 1 is a schematic axial direction structure diagram of a circular knife device for coiling embroidery or rope embroidery in the embodiment of the application;

FIG. 2 is a schematic diagram of a left lateral structure of the lifting mechanism in the embodiment of the present application;

FIG. 3 is a schematic diagram of a right side structure of the lifting mechanism in the embodiment of the present application;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is a schematic axial direction structure diagram of a circular knife device for coiling embroidery or rope embroidery in the embodiment of the present application after a lifting mechanism and a cover body are removed;

FIG. 6 is a schematic axial direction structure diagram of the fixing mechanism and the lifting mechanism in a connection state according to the embodiment of the present application;

FIG. 7 is a schematic diagram of an exploded structure between the fixing mechanism and the lifting mechanism in the embodiment of the present application;

FIG. 8 is a schematic sectional view of the fixing mechanism and the lifting mechanism in a connected state according to the embodiment of the present application;

FIG. 9 is an enlarged view at B in FIG. 8;

FIG. 10 is a right side view of the circular knife device for coiling embroidery or rope embroidery according to the embodiment of the present application after the lifting mechanism and the cover are removed;

FIG. 11 is a schematic top view of the circular knife mechanism in the embodiment of the present application;

FIG. 12 is a schematic cross-sectional view of a circular knife mechanism in an embodiment of the present application;

FIG. 13 is a schematic axial view of a presser foot mechanism in an embodiment of the subject application;

FIG. 14 is a schematic axial sectional view of a presser foot mechanism in an embodiment of the present application;

fig. 15 is an enlarged view at C in fig. 14.

Reference numerals: 1. a telescoping mechanism; 11. a telescopic base; 111. a telescopic base groove; 12. a telescopic motor; 13. a screw rod; 14. a linkage block; 141. an active part; 142. a driven part; 15. a slide rail; 151. a track; 152. a slider; 2. a fixing mechanism; 21. fixing the substrate; 22. a thread take-up substrate; 221. a lifting groove; 222. picking a wire body; 23. lifting the substrate; 3. a lifting mechanism; 31. a lifting assembly; 311. a lifting base; 3111. a base floor; 3112. a base fixing plate; 312. a worm gear shaft; 3121. a worm gear shaft sleeve; 3122. a retainer ring; 3123. a worm gear shaft bearing; 313. a lifting platform; 314. a worm gear; 315. a worm; 316. a guide wheel rod; 32. a drive base; 33. a circular knife base; 331. a first assembly position; 332. a second assembly position; 4. a drive mechanism; 41. a drive motor; 42. a drive wheel; 43. a transmission member; 44. a guide wheel; 45. a round cutter wheel; 46. a tension wheel; 461. a tensioning wheel screw; 47. a worm wheel; 5. a circular knife mechanism; 51. a circular cutter shaft; 52. a first circular knife bearing; 53. a second circular knife bearing; 54. pressing a cutter block; 55. a compression sleeve; 56. a blade; 6. a presser foot mechanism; 61. a presser foot; 62. a connecting rod; 621. a club head; 622. a rod body; 63. an elastic member; 64. a limiting plate; 641. a limiting hole; 7. a housing; 71. and (4) a cover hole.

Detailed Description

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The embodiment of the application provides a circular knife device for coiling embroidery or rope embroidery, wherein a fixing mechanism 2 and a lifting mechanism 3 are arranged, and a circular knife mechanism 5 is arranged on the lifting mechanism 3, so that the circular knife mechanism 5 can cut downwards relative to the fixing mechanism 2; in addition, by optimally designing the structure of the driving mechanism 4, the driving mechanism 4 can simultaneously drive the lifting body and the circular knife mechanism 5, so that the circular knife mechanism 5 continuously rotates while moving downwards, and the circular knife mechanism 5 can smoothly cut embroidery materials when contacting the embroidery materials; the technical problems that in the prior art, the speed of manually cutting the embroidery material is low, and the rolled embroidery material is easily pulled are solved; the technical effect of quickly cutting the embroidery material while keeping the stability of the rolled embroidery material is achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

A circular knife device for coiling embroidery or rope embroidery comprises: the device comprises a telescopic mechanism 1, a fixing mechanism 2, a lifting mechanism 3, a driving mechanism 4, a circular knife mechanism 5 and a presser foot mechanism 6. Wherein, the telescopic mechanism 1 is fixed on a fixed object, such as an embroidery machine or a wall surface; the fixing mechanism 2 is driven to move towards the embroidery material by the telescopic mechanism 1 so as to be convenient for the thread take-up body 222 in the fixing mechanism 2 to take up the embroidery material; then, the lifting mechanism 3 and the circular knife mechanism 5 are driven by the driving mechanism 4, so that the circular knife mechanism 5 rotates and moves downwards; the presser foot mechanism 6 further presses the embroidery material on the stitch take-up body 222 before the blade 56 of the circular knife mechanism 5 contacts the embroidery material, so that the circular knife mechanism 5 can smoothly cut the embroidery material between the two presser feet 61. In addition, the circular knife mechanism 5 is located at the front end of the circular knife device, the lifting assembly 31 is located behind the circular knife mechanism 5, and the center of gravity of the driving mechanism 4 is located behind the lifting assembly 31, so that the lifting movement of the lifting mechanism 3 relative to the fixing mechanism 2 is smooth.

Telescopic machanism 1, telescopic machanism 1 includes: the device comprises a telescopic base 11, a telescopic motor 12, a screw rod 13, a linkage block 14 and a slide rail 15. Wherein, the telescopic base 11 is used for fixing the circular knife device on a wall body or an embroidery machine; the telescopic motor 12 is a power source for driving the fixing mechanism 2 to stretch, the telescopic motor 12 is fixed on the telescopic base 11, and the output end of the telescopic motor 12 is connected with a screw rod 13. The linkage block 14 is divided into a driving part 141 and a driven part 142, and the driving part 141 is in threaded connection with the screw rod 13, so that the screw rod 13 drives the linkage block 14 to rotate spirally when rotating; the relationship between the linkage block 14 and the telescopic base 11 is further optimized, the telescopic base 11 is utilized to prevent the linkage block 14 from rotating, so that the screw rod 13 drives the linkage block 14 to do linear telescopic motion when rotating. The slide rail 15 comprises a rail 151 and a slide block 152, the slide rail 15 is parallel to the screw rod 13, and the slide rail 15 is arranged on the telescopic base 11; the sliding block 152 is disposed on the sliding rail 15, and the driven portion 142 of the linkage block 14 is connected to the sliding block 152, so as to further ensure that the linkage block 14 cannot rotate but can only move linearly. It should be noted that the screw rod 13 and the slide rail 15 may be disposed on two sides of the telescopic base 11, a through telescopic base groove 111 is disposed on the telescopic base 11, and the telescopic base groove 111 is parallel to the screw rod 13; the linkage block 14 penetrates through the telescopic base groove 111, and enough space is ensured on the telescopic mechanism 1 to connect the linkage block 14 with the fixing mechanism 2. It is understood that the telescopic mechanism 1 can also be a roller screw 13 assembly directly, and the fixing mechanism 2 is directly fixed on the roller screw 13.

The fixing mechanism 2, the fixing mechanism 2 is a connecting frame, and specifically, the fixing mechanism 2 is used as a connecting piece between the telescopic mechanism 1 and the lifting mechanism 3. The fixing mechanism 2 includes: a fixed substrate 21, a thread take-up substrate 22, and an elevating substrate 23; the fixed substrate 21 is fixedly connected with the linkage block 14; the lifting substrate 23 is connected with the fixed substrate 21 or the thread take-up substrate 22, the lifting substrate 23 is used as a plate body connected with the lifting mechanism 3, and a space is reserved below the lifting substrate 23 so that the lifting mechanism 3 can be arranged below the lifting substrate 23.

A thread take-up substrate 22, wherein the thread take-up substrate 22 is connected with the fixed substrate 21, a thread take-up body 222 is arranged at the lower end of the thread take-up substrate 22, and the thread take-up body 222 can take up embroidery; the thread take-up body 222 is located below the circular knife mechanism 5, and the embroidery material is located below the circular knife mechanism 5 by the thread take-up body 222. The front end surface of the thread take-up body 222 is an inclined surface so that the thread take-up body 222 can take up the embroidery. In addition, in order to facilitate the matching between the thread take-up body 222 and the presser foot 61, it is preferable that the upper end surface of the thread take-up body 222 is concave, and when the presser foot 61 is matched with the thread take-up body 222, the lower part of the presser foot 61 is located in the concave part of the thread take-up body 222; in addition, in order to avoid accumulating yarn and yarn wadding in the concave part of the take-up body 222, the concave part of the take-up body 222 is in a through shape with two ends, so that the fixing mechanism 2 can discharge the yarn in the stretching process conveniently, and an air gun can blow the yarn conveniently. In one embodiment, the thread take-up body 222 may be a split tubular body, and the thread take-up body 222 is detachably connected to the thread take-up base. It is preferable that at least two thread take-up bodies 222 are provided, and that two thread take-up bodies 222 are horizontally provided at an interval, and a space between the two thread take-up bodies 222 is used as a cutting space of the circular knife mechanism 5. In another embodiment, the take-up substrate 22 is provided with an elevation slot 221, the elevation slot 221 is a vertical slot, and the circular knife base 33 of the elevation mechanism 3 passes through the elevation slot 221, so that the elevation tracks of the elevation mechanism 3 and the circular knife mechanism 5 are limited by the elevation slot 221.

Elevating system 3, elevating system 3 includes: a lifting assembly 31, a driving base 32 and a circular knife base 33. The lifting component 31 is connected with the lifting base plate 23 in the fixing mechanism 2, the movable base is directly or indirectly connected with the lifting base 311, and the movable base is directly or indirectly connected with the lifting base 311, so that the lifting mechanism 3 can drive the circular knife mechanism 5 to move up and down.

Lifting assembly 31, lifting assembly 31 includes: the lifting base 311 and the lifting body, the lifting body can move up and down. The lifting body comprises: a lift 313, a worm-gear shaft 312, a worm gear 314, and a worm 315. The lifting table 313 is fixed to the fixing mechanism 2. A first end of a worm wheel shaft 312 is movably connected to the lifting base 311, and a second end of the worm wheel shaft 312 is in threaded connection with the lifting platform 313; specifically, worm wheel shaft 312 is provided with a worm wheel shaft bearing 3123 with respect to lift base 311 so that worm wheel shaft 312 can rotate; in order to improve stability between worm wheel shaft 312 and lifting base 311, lifting base 311 is provided with at least two layers with respect to worm wheel shaft 312, a base bottom plate 3111 at a bottom layer, a base fixing plate 3112 at an upper layer, a worm wheel shaft bearing 3123 provided on the base fixing plate 3112 at the upper layer so that worm wheel shaft bearing 3123 acts on a middle portion of worm wheel shaft 312, and worm wheel shaft 312 is provided with a worm wheel shaft housing 3121 with respect to base bottom plate 3111. The worm gear 314 is sleeved on the worm gear shaft 312, so that the worm gear 314 drives the worm gear shaft 312 to rotate; in order to limit the position of the worm wheel 314 on the worm wheel shaft 312, the worm wheel shaft 312 is provided with a retaining ring 3122 with respect to the worm wheel 314, and the retaining ring 3122 is located below the worm wheel 314 and supports the worm wheel 314. In one embodiment, to avoid the entanglement of the yarn or the wadding in the worm gear 314, the lifting base 311 is disposed in a half-wrapped shape with respect to the worm gear 314. The worm 315 is provided on the elevating base 311, and the worm 315 is disposed transversely with respect to the worm wheel 314, and the worm 315 and the worm wheel 314 are engaged. The worm 315 acts on the worm wheel 314, and the worm wheel shaft 312 is moved up and down with respect to the lifting table 313 by the worm wheel 314, so that the lifting base 311 is lifted and lowered with respect to the fixing mechanism 2. In one embodiment, it is preferable that the lifting mechanism 3 is located below the fixing mechanism 2, and the worm gear 314 is located below the lifting table 313.

The driving base 32, the driving base 32 and the lifting base 311 are connected, the driving base 32 is used for accommodating the driving mechanism 4, preferably, the driving base 32 and the fixing base plate 21 of the fixing mechanism 2 are respectively arranged at two sides of the lifting base 311, so that the left side and the right side of the lifting body are protected.

The circular knife base 33, the circular knife base 33 and the lifting base 311 or the driving base 32 are connected, the circular knife base 33 penetrates through the lifting groove 221 of the thread take-up substrate 22, and the circular knife base 33 is used for accommodating the circular knife mechanism 5 and the presser foot mechanism 6. The circular knife base 33 is provided with a first assembling position 331 relative to the circular knife mechanism 5, and the first assembling position 331 may be a through groove; the circular knife base 33 is provided with a second fitting position 332 with respect to the presser foot mechanism 6, and the second fitting position 332 may be an inward recessed hole.

Circular knife mechanism 5, circular knife mechanism 5 includes: the cutter comprises a circular cutter shaft 51, a first circular cutter shaft 51 bearing, a second circular cutter shaft 51 bearing, a cutter pressing block 54, a pressing sleeve 55 and a blade 56. The circular knife shaft 51 is arranged on the upper first assembly position 331, and two ends of the circular knife shaft 51 are respectively provided with a first circular knife shaft 51 bearing and a second circular knife shaft 51 bearing relative to the first assembly position 331; in one embodiment, the second circular knife shaft 51 on the side of the circular knife shaft 51 opposite to the driving mechanism 4 is a bearing with a seat, so that the side end of the circular knife shaft 51 is sleeved on the circular knife wheel 45, and the circular knife wheel 45 enables the driving mechanism 4 to drive the circular knife shaft 51 to rotate freely. The blade 56 is sleeved on the circular knife shaft 51, the two sides of the blade 56 are respectively sleeved with the pressure block and the pressing sleeve 55, and the cutting area of the circular knife base 33 is filled through the pressure block and the pressing sleeve 55, so that the position of the blade 56 relative to the circular knife shaft 51 is stable.

The driving mechanism 4, the driving mechanism 4 is arranged on the driving base 32, the driving mechanism 4 acts on the lifting body and the circular knife mechanism 5 respectively, the lifting body is lifted and moved through the driving mechanism 4, and the blade 56 in the circular knife mechanism 5 is rotated through the driving mechanism 4. The drive mechanism 4 includes: a driving motor 41, a driving wheel 42, a transmission member 43, a guide wheel 44, a circular cutter wheel 45, a tension wheel 46 and a worm wheel 47. The drive motor 41 is provided on the drive base 32; the driving wheel 42, the circular knife wheel 45 and the worm wheel 47 are located on the same plane, the driving wheel 42 is arranged on the driving motor 41, the worm wheel 47 is sleeved on the worm 315, the circular knife wheel 45 is sleeved on the circular knife shaft 51, the transmission member 43 is specifically a closed transmission belt or transmission chain, the transmission member 43 is sequentially connected with the driving wheel 42, the circular knife wheel 45 and the worm wheel 47, and the lifting body and the circular knife mechanism 5 synchronously move through the transmission member 43. A tension pulley 46 and a guide pulley 44 are also provided on the transmission member 43, the guide pulley 44 being used to adjust the transmission direction of the transmission member 43, and the tension pulley 46 being used to tension the transmission member 43. In one embodiment, the circular knife device further comprises a cover 7, wherein the cover 7 covers the outer sides of the fixing mechanism 2 and the moving mechanism and is used for protecting the fixing mechanism 2, the moving mechanism and the driving mechanism 4; and the housing 7 is provided with a cover hole 71 corresponding to the tension wheel 46, and the tension wheel screw 461 on the tension wheel 46 is exposed through the cover hole 71, so that the adjustment and maintenance can be rapidly carried out when the transmission member 43 slips.

The presser foot mechanism 6, the presser foot mechanism 6 includes: a presser foot 61, a connecting rod 62, an elastic member 63 and a limit plate 64; the presser foot 61 corresponds to the line-picking body 222, and the presser foot 61 is positioned above the line-picking body 222; the lower end of the connecting rod 62 is detachably connected to the presser foot 61, the upper end of the connecting rod 62 is arranged at the second assembling position 332 of the circular knife base 33, and the circular knife base 33 drives the presser foot 61 to move up and down through the connecting rod 62. The presser foot 61 has a first state and a second state relative to the thread take-up body 222, and in the first state, the presser foot 61 is attached to the thread take-up body 222; in the second state, the presser foot 61 and the thread take-up body 222 are separated. In one embodiment, in order to make the presser foot 61 have the forced contraction characteristic, the connecting rod 62 includes a rod head 621 and a rod body 622, the rod head 621 is located in the second assembly line 332, and an elastic member 63 is further disposed in the second assembly line 332 relative to the rod head 621, so that the rod head 621 has a resetting tendency when pressing against the elastic member 63. Further, the cross-sectional dimension of the head 621 is larger than that of the shaft 622; the limiting plate 64 is provided with a limiting hole 641 opposite to the rod body 622, the cross-sectional dimension of the limiting hole 641 is smaller than that of the rod head 621, and the cross-sectional dimension of the limiting hole 641 is larger than that of the rod body 622; the limiting plate 64 is sleeved on the rod 622 from bottom to top through the limiting hole 641, and the limiting plate 64 is fixed on the circular knife base 33, so that the rod head 621 cannot pass through the limiting plate 64 from bottom to top, and the rod head 621 moves up and down in the second assembling position 332. The presser foot 61 is arranged below the circular knife base 33, and the presser foot 61 is lower than the blade 56 of the circular knife mechanism 5 under the condition that the presser foot 61 is not retracted; after the presser foot 61 is retracted, there may be a case where the presser foot 61 and the blade 56 are flush, or the blade 56 is lower than the presser foot 61. It should be noted that, in addition to the limiting plate 64 for limiting the rod head 621 of the connecting rod 62, the limiting plate 64 is also used for fixing and supporting the second circular knife shaft 51 in the circular knife mechanism 5.

The working principle is as follows:

when the embroidery needs to be cut, the telescopic mechanism 1 drives the fixing mechanism 2 to move towards the embroidery to be cut, so that the thread take-up body 222 in the fixing mechanism 2 takes up the embroidery; after the telescopic mechanism 1 moves to a certain degree, the driving mechanism 4 works to enable the lifting body to move downwards, enable the presser foot mechanism 6 to move downwards, enable the circular knife mechanism 5 to rotate, and enable the blade 56 to move downwards in a rotating mode; during the operation of the driving mechanism 4, the presser foot 61 of the presser foot mechanism 6 presses the embroidery material on both sides in cooperation with the thread take-up body 222, and then the circular knife mechanism 5 continues to move downward, so that the blade 56 cuts the embroidery material.

The technical effects are as follows:

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A circular knife device for coiling embroidery or rope embroidery is characterized in that the circular knife device for coiling embroidery or rope embroidery comprises:

a telescoping mechanism;

the fixing mechanism is arranged on the telescopic mechanism; the fixing mechanism includes:

the lower end of the take-up base plate is provided with a take-up body which can take up embroidery materials;

a lifting mechanism, the lifting mechanism comprising:

a lift assembly, the lift assembly comprising:

a lifting base;

the lifting body can move in a lifting way; the first end of the lifting body is connected to the fixing mechanism, and the second end of the lifting body is connected to the lifting base;

the driving base is directly or indirectly connected with the lifting base; and

the circular knife base is directly or indirectly connected with the lifting base; the circular knife base is provided with a second assembling position;

the circular knife mechanism is arranged on the circular knife base and is provided with a blade; the circular knife mechanism is positioned above the line picking body; and

the driving mechanism is arranged on the driving base; the driving mechanism acts on the lifting body and the circular cutter mechanism respectively, the lifting body is lifted through the driving mechanism, and the blades in the circular cutter mechanism rotate through the driving mechanism;

a presser foot mechanism, the presser foot mechanism comprising:

the presser foot corresponds to the thread picking body and is positioned above the thread picking body; the presser foot has a first state and a second state relative to the line picking body, and the presser foot is attached to the line picking body in the first state; when in the second state, the presser foot is separated from the thread take-up body;

the connecting rod is respectively connected with the presser foot and the circular knife base and drives the presser foot to move up and down through the connecting rod; the connecting rod comprises a rod head and a rod body, the rod head is positioned in the second assembly position, and the cross section size of the rod head is larger than that of the rod body; and

the limiting plate is connected with the circular cutter base and is provided with a limiting hole relative to the rod body; the cross section size of the limiting hole is smaller than that of the club head, so that the club head can move up and down in the second assembling position.

2. The circular knife device for cording to claim 1, wherein the lifting body comprises:

the lifting platform is fixed on the fixing mechanism;

the first end of the worm wheel shaft is movably connected to the lifting base, and the second end of the worm wheel shaft is in threaded connection with the lifting platform;

the worm wheel is sleeved on the worm wheel shaft, so that the worm wheel drives the worm wheel shaft to rotate; and

the worm is arranged on the lifting base and meshed with the worm wheel;

the worm acts on the worm wheel, and the worm wheel shaft is enabled to move up and down relative to the lifting platform through the worm wheel, so that the lifting base is lifted and lowered relative to the fixing mechanism.

3. The circular knife device for cording to claim 1, wherein a first fitting position is provided on the circular knife base, and the circular knife mechanism comprises:

the circular knife shaft is arranged on the first assembling position, a bearing is arranged between the circular knife shaft and the first assembling position, and the circular knife shaft can freely rotate through the bearing;

the blade is sleeved on the circular cutter shaft.

4. The circular knife device for cording to claim 1, wherein the second fitting location is concave.

5. The circular knife device for cording to claim 1, wherein the fixing mechanism is provided with a lifting slot, the lifting mechanism penetrates through the lifting slot, and the lifting track of the lifting mechanism is limited by the lifting slot.

6. The circular knife device for dribbling embroidery or rope embroidery as claimed in claim 1, wherein said driving mechanism comprises:

the driving motor is arranged on the driving base;

and the transmission piece is connected with the lifting body and the circular knife mechanism.

7. The circular knife device for cording to claim 6, wherein the driving member is a closed driving belt or chain, and the lifting member and the circular knife mechanism are synchronously operated by the driving member.

8. The circular knife apparatus for cording to any one of claims 1 to 7, wherein the circular knife mechanism is located at a front end of the circular knife apparatus, the lifting assembly is located at a rear portion of the circular knife mechanism, and a center of gravity of the driving mechanism is located at a rear portion of the lifting assembly, so that a lifting motion of the lifting mechanism with respect to the fixing mechanism is smooth.