CN209873314U - Ultrasonic cloth cutting device and sewing machine - Google Patents

Abstract

The utility model provides an ultrasonic cloth cutting device and a sewing machine, wherein the ultrasonic cloth cutting device comprises a bedplate for placing cloth, a mounting plate, a lifting component arranged on the mounting plate, a cutter driven by the lifting component to lift, and an ultrasonic generator component fixed relative to the bedplate, the ultrasonic generator component is provided with an ultrasonic generator, a containing hole for exposing the head of the ultrasonic generator is arranged on the bedplate, and the cutter and the head of the ultrasonic generator are arranged opposite to each other up and down; when the lifting component enables the cutter to descend, the cutter presses and attaches the cloth placed on the bedplate to the head of the ultrasonic generator. In this application, the cloth molecule between the two is hit broke up in the twinkling of an eye to the little collision of the high frequency that produces between cutter and supersonic generator's the head, and then realizes that the ultrasonic wave cuts cloth, and this process can not produce high temperature and flue gas, has effectively avoided potential safety hazard and polluted environment.

Description

Ultrasonic cloth cutting device and sewing machine

Technical Field

The utility model relates to a sewing machine especially relates to an ultrasonic wave fabric cutting device for sewing machine.

Background

In the field of sewing machines, the fabric cutting devices for cutting fabric in the existing template machines are mainly classified into two types, one type is a mechanical cutter type fabric cutting device, and the other type is a laser type fabric cutting device. The cloth cutting device of the mechanical cutter type is used for cutting cloth by depending on the matching of the movable cutter and the fixed cutter, and if the cloth is to be cut in a rotating mode, the synchronous rotation of the movable cutter and the fixed cutter needs to be guaranteed, so that the overall structure of the cloth cutting device of the mechanical cutter type is very complex, the abrasion resistance of the movable cutter and the fixed cutter is poor, and the service life of the cloth cutting device is short. The laser cloth cutting device has the following defects in the process of cutting cloth by laser: laser generating device's is bulky, and the debugging of laser and the maintenance of lens are also very loaded down with trivial details, and the high temperature that produces in the laser cutting process has the hidden danger of taking place the conflagration easily, and the waste gas that produces in the laser cutting process can the polluted environment.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings of the prior art, an object of the present invention is to provide an ultrasonic cloth cutting device, which has a simple structure and no potential safety hazard.

In order to achieve the purpose, the utility model provides an ultrasonic cloth cutting device, which comprises a bedplate for placing cloth, a mounting plate, a lifting component arranged on the mounting plate, a cutter driven by the lifting component to lift, and an ultrasonic generator component fixed relative to the bedplate, wherein the ultrasonic generator component is provided with an ultrasonic generator, the bedplate is provided with a containing hole for exposing the head of the ultrasonic generator, and the cutter and the head of the ultrasonic generator are arranged opposite to each other up and down; when the lifting assembly enables the cutter to descend, the cutter presses the cloth placed on the bedplate to be attached to the head of the ultrasonic generator.

Further, the upper end face of the head of the ultrasonic generator is a horizontal end face.

Further, ultrasonic wave fabric cutting device still includes rotating assembly, rotating assembly can install in the mounting panel with reciprocating, lifting assembly's lift output links to each other with rotating assembly, drives rotating assembly and goes up and down, rotating assembly's rotatory output links to each other with the cutter, drives the cutter rotation.

Further, the lifting assembly comprises a lifting cylinder and a lifting push plate, the lifting cylinder is fixed on the mounting plate and provided with a first cylinder piston rod capable of stretching up and down, the first cylinder piston rod is connected with the lifting push plate, the lifting push plate forms a lifting output end of the lifting assembly and is connected with a first mounting bracket in the rotating assembly, and the first mounting bracket can be mounted on the mounting plate in a vertically movable mode.

Furthermore, the lifting assembly further comprises a floating joint, and a first air cylinder piston rod of the lifting air cylinder is connected with the lifting push plate through the floating joint.

Further, the rotating assembly comprises a first mounting bracket, a rotating motor, a speed reducer and a rotating shaft, wherein the first mounting bracket is connected with the lifting output end, the speed reducer is fixed on the first mounting bracket, the rotating shaft extends up and down, the first mounting bracket can be mounted on the mounting plate in a vertically moving mode, the rotating motor is connected with the speed reducer, the output end of the speed reducer is fixed to the upper end of the rotating shaft through a coupler, and the lower end of the rotating shaft forms the rotating output end of the rotating assembly.

Furthermore, a guide rail extending up and down is fixed on the mounting plate, a sliding block is fixed on the first mounting bracket, and the sliding block is in sliding fit with the guide rail.

Further, ultrasonic wave fabric cutting device still includes the blade holder that is fixed in rotatory output and rotationally supports the hob shaft in the blade holder, the hob shaft perpendicular to rotatory output, the cutter is the hobbing cutter of suit on the hob shaft, the periphery of hobbing cutter is equipped with the hobbing cutter cutting edge of a circle.

Furthermore, the cutter is a utility knife fixed at the rotary output end, the lower end of the utility knife is provided with a U-shaped utility knife head, and the bottom of the utility knife head is a utility knife blade.

Further, the supersonic generator subassembly is still including bedplate and the clamp plate that is fixed in the sewing machine frame, the bedplate has the bedplate horizontal part that the level extends, and the mounting groove has been seted up to the upper end of this bedplate horizontal part, the clamp plate is fixed in bedplate horizontal part and covers the mounting groove, supersonic generator's periphery has round mounting flange, mounting flange is arranged in the mounting groove of bedplate horizontal part and is compressed tightly fixedly by the clamp plate.

Furthermore, the upper side and the lower side of the mounting flange are both provided with damping sheets, and the damping sheets are nylon gaskets.

Furthermore, the ultrasonic cloth cutting device also comprises a presser foot assembly, wherein the presser foot assembly comprises a second mounting bracket fixed on the mounting plate, a presser foot cylinder fixed on the second mounting bracket and a presser foot, the presser foot cylinder is provided with a second cylinder piston rod capable of stretching up and down, and the second cylinder piston rod is fixed with the presser foot; a through groove which is communicated up and down is arranged in the presser foot, and the cutter is arranged in the through groove in a penetrating way in a lifting way; when the presser foot cylinder drives the presser foot to descend, the presser foot presses the cloth on the bedplate.

The utility model also provides a sewing machine, sewing machine is middle to be installed as above ultrasonic wave cloth cutting device.

As described above, the utility model relates to an ultrasonic wave fabric cutting device and sewing machine has following beneficial effect:

in the application, the cloth molecules between the cutter and the head of the ultrasonic generator are instantaneously crushed by high-frequency micro-collision generated between the cutter and the head of the ultrasonic generator, so that ultrasonic cloth cutting is realized, high temperature and smoke are not generated in the process, and potential safety hazards and environmental pollution are effectively avoided; particularly, after the cutter and the ultrasonic generator are arranged separately, the worn cutter can be replaced conveniently, the cost is reduced, the size, the appearance and other structures of the cutter can be determined conveniently in an early stage by adopting a simulation test mode, and the structural design of the cutter is realized more easily.

Drawings

Fig. 1 and 2 are schematic structural diagrams of an ultrasonic cloth cutting device according to an embodiment of the present application at different viewing angles.

Fig. 3 and 4 are schematic structural diagrams of an ultrasonic fabric cutting device according to a second embodiment of the present application at different viewing angles.

Fig. 5 is a schematic structural diagram of the lifting assembly of the present application.

Fig. 6 is a schematic structural diagram of a rotating assembly according to the present application.

Fig. 7 is a schematic structural diagram of a first embodiment of a cutter assembly according to the present application.

Fig. 8 and 9 are schematic structural views of an ultrasonic generator assembly according to the present application.

Fig. 10 is a schematic view of the structure of the presser foot assembly in the present application.

Fig. 11 is a schematic structural diagram of a scribing knife in the present application.

Fig. 12 is a schematic view of the fit between the cutting blade and the ultrasonic generator in the present application.

Description of the element reference numerals

100 mounting plate

200 bedplate cover plate

21 containing hole

300 lifting assembly

31 lifting cylinder

311 first cylinder piston rod

32 lifting push plate

33 Floating joint

34 fixing plate

35 fastening nut

400 cutter assembly

41 cutting knife

42 tool apron

43 roller shaft

44 Hob

441 hob blade

45 retaining ring

46 Scriber

461 Scriber bit

462 knife edge of marking knife

500 ultrasonic generator assembly

51 ultrasonic generator

511 horizontal end face

512 mounting flange

52 seat board

521 seat board horizontal part

522 mounting groove

523 seat plate vertical part

53 pressing plate

54 damping sheet

55 fixed support

600 rotating assembly

61 first mounting bracket

62 rotating electric machine

63 speed reducer

64 rotating shaft

65 guide rail

66 sliding block

67 light-shading sheet

68 zero position sensor

69 coupling

700 presser foot assembly

71 second mounting bracket

72 presser foot cylinder

721 second cylinder piston rod

73 presser foot

731 trough groove

800 bearing

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.

The application provides a sewing machine, especially a template machine, this template machine has the frame, is fixed in platen, ultrasonic wave cloth cutting device and the work feed mechanism of frame, and the platen is used for placing the cloth, and the work feed mechanism is used for transferring the cloth according to the style figure, and ultrasonic wave cloth cutting device is used for cutting the cloth that is transferred by the work feed mechanism. The following text will be made for a preferred embodiment of the ultrasonic cloth cutting device.

As shown in fig. 1 and 2, or fig. 3 and 4, the ultrasonic cloth cutting apparatus according to the present invention at least includes a mounting plate 100 fixed to a frame, a lifting assembly 300 mounted to the mounting plate 100, a cutter assembly 400, and an ultrasonic generator assembly 500, wherein the cutter assembly 400 has a cutter 41 driven by the lifting assembly 300 to be lifted, the ultrasonic generator assembly 500 is mounted to the frame, and a platen is fixed to the frame, so that the ultrasonic generator assembly 500 is fixed relative to the platen; as shown in fig. 12, the ultrasonic generator unit 500 includes an ultrasonic generator 51, a receiving hole 21 for receiving the head of the ultrasonic generator 51 exposed is formed in the platen, the receiving hole 21 vertically penetrates the platen, and the cutter 41 is vertically opposed to the head of the ultrasonic generator 51. When the ultrasonic cloth cutting device works, the lifting assembly 300 enables the cutter 41 to descend, and the cutter 41 presses and attaches the cloth placed on the bedplate to the head of the ultrasonic generator 51; after the ultrasonic wave generating device inputs high-frequency alternating current, the head of the ultrasonic generator 51 generates a high-frequency micro-amplitude, when the cutter 41 is pressed and contacted with the head of the ultrasonic generator 51 under the action of the lifting assembly 300, high-frequency micro-collision is generated between the cutter head of the cutter 41 and the head of the ultrasonic generator 51, and the high-frequency micro-collision can instantly break cloth molecules between the cutter head and the head of the ultrasonic generator 51. In the cloth cutting process of the ultrasonic cloth cutting device, a cloth feeding mechanism in the template machine transfers cloth according to a pattern, the cloth moves relative to the cutter 41 and the head of the ultrasonic generator 51 according to the pattern, and a continuous cutting mark which is the same as the pattern is formed on the cloth through continuous high-frequency micro-collision generated by continuous contact between the cutter head of the cutter 41 and the head of the ultrasonic generator 51, so that the ultrasonic cloth cutting is realized. This application is when the cloth cutting, owing to utilize the ultrahigh frequency vibration that cutter 41 and supersonic generator 51 produced to shake this principle of garrulous cloth molecule, consequently can not produce high temperature, flue gas and peculiar smell, has effectively avoided potential safety hazard and polluted environment, and the feature of environmental protection is good, and still makes the template machine need not dispose extra smog processing system, can reduce the cost of template machine. In addition, ultrasonic cloth cutting in this application is accomplished by cutter 41 and supersonic generator 51 jointly, and cutter 41 and supersonic generator 51 are two relatively independent spare parts, namely sets up cutter 41 and supersonic generator 51 separately, and it is only convenient for follow-up change worn out cutter 41, reduce cost, can also be convenient for adopt the structure such as size, appearance of simulation test mode determination cutter 41 in earlier stage, make the structural design of cutter 41 realize more easily.

Preferably, as shown in fig. 1 and 2, or fig. 3 and 4, the platen in the platen machine is provided with a platen cover 200 at the head of the ultrasonic generator 51, the receiving hole 21 is opened on the platen cover 200, and the platen cover 200 is fixed to the platen by screws, thereby facilitating replacement of the platen cover 200. The ultrasonic cloth cutting device related to the application can also be provided with a rotating assembly 600 and a presser foot assembly 700; the rotating assembly 600 is used for driving the cutter 41 to rotate, changing the angle of the cutter 41, enabling the direction of the upper blade of the cutter 41 to be the same as the tangential direction of the cloth feeding track when the cloth feeding mechanism transfers the cloth, realizing curve cloth cutting, and enabling the application range of the ultrasonic cloth cutting device to be wide; the presser foot assembly 700 is provided with a presser foot 73 capable of moving up and down, and the presser foot 73 is used for pressing the cloth on the bedplate, so that the template and the cloth are pressed tightly, the cloth is prevented from being dislocated, and the cloth cutting quality is improved.

The following description will be given of preferred embodiments of each component of the ultrasonic cutting apparatus.

Lifting assembly 300

As shown in fig. 5, the lifting assembly 300 includes a fixing plate 34 having an L shape, a lifting cylinder 31, a lifting push plate 32 having an L shape, a floating joint 33, and a fastening nut 35. The elevating cylinder 31 is fixed to the horizontal plate portion of the fixing plate 34, and the vertical plate portion of the fixing plate 34 is fixed to the mounting plate 100, so that the elevating cylinder 31 is fixedly mounted to the mounting plate 100 via the fixing plate 34. The lifting cylinder 31 has a first cylinder piston rod 311 capable of extending and retracting up and down, the first cylinder piston rod 311 is connected to the upper end of the floating joint 33, the lower end of the floating joint 33 is connected to the horizontal plate portion of the lifting push plate 32 through a fastening nut 35, the fastening nut 35 abuts against the lower end surface of the horizontal plate portion of the lifting push plate 32, and the vertical plate portion of the lifting push plate 32 is connected to the rotating assembly 600. When the first cylinder piston rod 311 of the lifting cylinder 31 retracts upwards or extends downwards, the first cylinder piston rod 311 drives the lifting push plate 32 to ascend or descend together, and further drives the rotating assembly 600 and the cutter 41 mounted on the rotating assembly 600 to ascend or descend together, so as to drive the cutter 41 to ascend and descend.

In the lifting assembly 300, the lifting push plate 32 capable of moving up and down constitutes a lifting output end of the lifting assembly 300, and the lifting output end of the lifting assembly 300 is connected with the rotating assembly 600 to drive the rotating assembly 600 to lift. The lifting cylinder 31 forms a lifting driving source of the lifting assembly 300 and provides necessary pressure for the cloth cutting of the cutter head at the lower end of the cutter 41; of course, in other embodiments, the lifting driving source may also be a sliding table cylinder, an electromagnet, a linear motor, a motor screw rod, or the like.

Rotating assembly 600

As shown in fig. 6 and 7, the rotating assembly 600 includes a first mounting bracket 61, a rotating motor 62, a reducer 63, and a rotating shaft 64 extending up and down. The first mounting bracket 61 is コ -shaped, and has a vertical plate portion, an upper horizontal plate portion connected to the upper end of the vertical plate portion, and a lower horizontal plate portion connected to the lower end of the vertical plate portion; the vertical plate portion of the first mounting bracket 61 is mounted to the mounting plate 100 to be movable up and down, so that the rotating assembly 600 is mounted to the mounting plate 100 to be movable up and down as a whole; the vertical plate part of the first mounting bracket 61 is fixed with the vertical plate part of the lifting push plate 32 in the lifting assembly 300, and the lifting assembly 300 drives the first mounting bracket 61 to ascend or descend, so as to drive the rotating assembly 600 as a whole and the cutter 41 mounted on the rotating assembly 600 to ascend or descend together. The rotating motor 62 is connected to the reducer 63, the reducer 63 is fixed to the upper horizontal plate portion of the first mounting bracket 61, the output end of the reducer 63 is fixed to the upper end of the rotating shaft 64 through the coupling 69, the rotating shaft 64 is rotatably supported in the lower horizontal plate portion of the first mounting bracket 61 through the bearing 800, and the lower end of the rotating shaft 64 is used for being connected to the cutter assembly 400. When the rotating motor 62 rotates, the rotating shaft 64 is driven to rotate by the speed reducer 63 and the coupling 69, the rotating shaft 64 drives the cutter assembly 400 to rotate together, and then drives the cutter 41 in the cutter assembly 400 to rotate together, so that the angle of the cutter head at the lower end of the cutter 41 is changed, and curved cloth cutting is realized.

In the rotating assembly 600, the lower end of the rotating shaft 64 forms a rotating output end of the rotating assembly 600, and the rotating output end of the rotating assembly 600 is connected with the cutter assembly 400 and drives the cutter 41 in the cutter assembly 400 to rotate. The rotating motor 62 constitutes a rotation drive source of the rotating assembly 600.

Preferably, as shown in fig. 5, a guide rail 65 extending up and down is fixed on the mounting plate 100, a slider 66 is fixed on the vertical plate portion of the first mounting bracket 61, and the slider 66 is in sliding fit with the guide rail 65, so as to improve the stability and accuracy when the lifting assembly 300 drives the first mounting bracket 61 to ascend or descend, and enable the cutter 41 to accurately and stably press the cloth to the head of the ultrasonic generator 51.

Further, as shown in fig. 6, the rotating assembly 600 further includes a light shielding plate 67 fixed to the rotating shaft 64, and a zero position sensor 68 fixed to the lower horizontal plate portion of the first mounting bracket 61, during the rotation of the rotating shaft 64, the zero position sensor 68 can sense the light shielding plate 67, the zero position sensor 68 and the rotating motor 62 are connected to an electronic control module in the template machine, and the electronic control module can control the rotation angle of the rotating motor 62 according to a feedback signal of the zero position sensor 68, so that the rotating shaft 64 is accurately stopped at a preset initial position, thereby controlling the initial angle of the cutting knife 41.

Ultrasonic generator assembly 500

As shown in fig. 8 and 9, and fig. 12, an ultrasonic generator assembly 500 is installed below the table, and the ultrasonic generator assembly 500 includes an ultrasonic generator 51, a fixing bracket 55 fixed to the frame of the sewing machine, a seat plate 52, and a pressure plate 53. The seat plate 52 is L-shaped and is provided with a vertically extending seat plate vertical part 523 and a horizontally extending seat plate horizontal part 521, the seat plate vertical part 523 is fixed with the fixed bracket 55, and the ultrasonic generator assembly 500 is integrally installed on a sewing machine frame; the upper end of the seat plate horizontal part 521 is provided with a mounting groove 522, the periphery of the ultrasonic generator 51 is provided with a ring of mounting flange 512, the mounting flange 512 is positioned in the mounting groove 522 of the seat plate horizontal part 521, the pressing plate 53 is fixed on the seat plate horizontal part 521 and covers the mounting groove 522, and then the mounting flange 512 is pressed and fixed in the mounting groove 522 of the seat plate horizontal part 521, so that the ultrasonic generator 51 is fixedly mounted on the seat plate horizontal part 521.

Preferably, as shown in fig. 12, the upper end surface of the head of the ultrasonic generator 51 is a horizontal end surface 511. The upper side of the mounting flange 512 is provided with a damping sheet 54 positioned between the mounting flange 512 and the pressure plate 53, the lower side of the mounting flange 512 is provided with a damping sheet 54 positioned between the mounting flange 512 and the horizontal part 521 of the seat plate, and the damping sheet 54 is a nylon gasket, so that the transmission of high-frequency micro-amplitude generated by the ultrasonic generator 51 to a sewing machine frame is effectively relieved, and a good damping effect is achieved in the cloth cutting process.

Cutter assembly 400

The cutters 41 in the cutter assembly 400 may be selected from the hob 44 or the scribe 46, with both types of cutters 41 providing two embodiments of the cutter assembly 400.

In the first embodiment of the cutter assembly 400, as shown in fig. 6 and 7, the cutter 41 is a hob 44; based on this, the first embodiment of the cutter assembly 400 further includes a cutter seat 42 and a hob shaft 43, the cutter seat 42 is detachably mounted at the lower end of the rotating shaft 64 through screws, the hob shaft 43 is perpendicular to the rotating shaft 64, the hob shaft 43 is rotatably supported in the cutter seat 42 through a bearing 800, the hob 44 is rotatably sleeved on the hob shaft 43, two ends of the hob 44 are limited by a retaining ring 45 fixed on the hob shaft 43, and a ring of hob blade 441 is arranged on the periphery of the hob 44. When the rotating shaft 64 in the rotating assembly 600 rotates, the tool post 42, the hob shaft 43 and the hob 44 are driven to rotate together, so that the angle of the hob edge 441 on the periphery of the hob 44 is changed, and curved cloth cutting is realized. In the cloth cutting process, the hob cutter 44 can rotate relative to the hob cutter shaft 43, so that the hob cutter 44 is in rolling fit with the cloth, the friction force between the hob cutter 44 and the cloth is small, the pulling force of the hob cutter 44 on the cloth is small, the phenomenon that the hob cutter 44 brings the cloth can be avoided, the cloth cutting quality is guaranteed, and the cloth cutting machine is suitable for cloth cutting occasions of cutting common fabrics and knitted fabrics.

Second embodiment of the cutter assembly 400, as shown in fig. 11, the second embodiment of the cutter assembly 400 only includes a scribing bit 46, the upper end of the scribing bit 46 is detachably mounted on the lower end of the rotating shaft 64 through a screw, the lower end of the scribing bit 46 is provided with a U-shaped scribing bit 461, and the bottom of the scribing bit 461 is provided with a scribing blade 462. The utility model has the advantages of the lower end of the utility knife 46 is the utility model is small in the utility model, and is suitable for the cloth cutting occasions such as small circular arc, sharp corner turning, etc.

Preferably, the first embodiment of the cutter assembly 400 having the holder 42, the roller shaft 43, the hob 44 and the retainer ring 45 is an integral module in which the holder 42 is directly detachably mounted on the lower end of the rotating shaft 64 by screws, and the second embodiment of the cutter assembly 400 consisting of the scriber 46 is an integral module in which the scriber 46 is directly detachably mounted on the lower end of the rotating shaft 64 by screws, so as to facilitate the switching of different types of cutters 41 between the hob 44 and the scriber 46, so that the ultrasonic cloth cutting apparatus can be used in more cloth cutting occasions. When it is desired to replace the hob 44 with the utility knife 46, the screws for fixing the tool holder 42 are loosened, the whole cutter assembly 400 is removed, and the utility knife 46 is mounted on the lower end of the rotating shaft 64 by using the screws. Similarly, when the utility model 46 needs to be replaced by the hob 44, the cutter assembly 400 can be installed at the lower end of the rotating shaft 64 as a whole by loosening the screws for fixing the utility model 46, removing the utility model 46, and then installing the tool post 42 at the lower end of the rotating shaft 64 by using the screws.

Pressure foot assembly 700

As shown in fig. 10, the presser foot assembly 700 includes the second mounting bracket 71 in an L-shape, the presser foot cylinder 72, and the presser foot 73. The vertical plate portion of the second mounting bracket 71 is fixed to the mounting plate 100, thereby integrally fixing the presser foot assembly 700 to the mounting plate 100; the presser foot cylinder 72 is fixed on the horizontal plate part of the second mounting bracket 71, the presser foot cylinder 72 is provided with a second cylinder piston rod 721 capable of stretching up and down, and the second cylinder piston rod 721 is fixed with the presser foot 73; a through groove 731 which penetrates up and down is formed in the presser foot 73; when the lifting assembly 300 drives the cutter 41 to lift, the cutter 41 can be arranged in the through groove 731 of the presser foot 73 in a lifting and descending manner; when the presser foot cylinder 72 drives the presser foot 73 to descend, the presser foot 73 presses and pastes the template and the cloth on the bedplate, and the cloth is prevented from deviating.

The above functional components are combined together, so that the ultrasonic cloth cutting device has various embodiments, such as:

as shown in fig. 1 and 2, the first embodiment of the ultrasonic cloth cutting apparatus is provided with the mounting plate 100, the lifting assembly 300, the rotating assembly 600, the first embodiment of the cutter assembly 400, and the ultrasonic generator assembly 500 having the above-described structure.

As shown in fig. 3 and 4, the second embodiment of the ultrasonic cloth cutting apparatus includes the mounting plate 100, the lifting unit 300, the rotating unit 600, the second embodiment of the cutter unit 400, the presser foot unit 700, and the ultrasonic generator unit 500.

The third embodiment of the ultrasonic cloth cutting device comprises the mounting plate 100, the lifting assembly 300, the rotating assembly 600, the first embodiment of the cutter assembly 400, the presser foot assembly 700 and the ultrasonic generator assembly 500 which are configured as described above.

In summary, after the fabric cutting procedure of the template machine is started, the first cylinder piston rod 311 of the lifting cylinder 31 in the ultrasonic fabric cutting device is lowered, so that the lower end of the cutting knife 41 presses the fabric on the platen, and the fabric is tightly attached to the horizontal end surface 511 at the upper end of the head of the ultrasonic generator 51; through the ultrahigh frequency vibration of the ultrasonic generator 51 and the pressure action of the lifting cylinder 31 on the cutter 41, the cloth is cut at a stress point between the cutter 41 and the head of the ultrasonic generator 51, and then the angle of the cutter head at the lower end of the cutter 41 is changed adaptively along the movement of the cloth feeding mechanism in the template clamping machine and the change of the pattern track of the rotating assembly 600, so that the required cut edge is cut, and the ultrasonic cloth cutting is completed. The ultrasonic cloth cutting device is simple in integral structure, easy to realize, small in occupied space, and good in environmental protection and operation safety.

Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (13)

1. The utility model provides an ultrasonic wave fabric cutting device, includes the platen that is used for placing the cloth, its characterized in that: the ultrasonic wave generator is characterized by further comprising an installation plate (100), a lifting assembly (300) arranged on the installation plate (100), a cutter (41) driven by the lifting assembly (300) to lift, and an ultrasonic generator assembly (500) fixed relative to the bedplate, wherein the ultrasonic generator assembly (500) is provided with an ultrasonic generator (51), a containing hole (21) for exposing the head of the ultrasonic generator (51) is formed in the bedplate, and the cutter (41) and the head of the ultrasonic generator (51) are arranged in a vertically opposite mode; when the lifting component (300) enables the cutter (41) to descend, the cutter (41) presses the cloth placed on the bedplate to the head of the ultrasonic generator (51).

2. The ultrasonic cloth cutting device according to claim 1, wherein: the upper end face of the head of the ultrasonic generator (51) is a horizontal end face (511).

3. The ultrasonic cloth cutting device according to claim 1, wherein: the cutting tool is characterized by further comprising a rotating assembly (600), wherein the rotating assembly (600) can be installed on the installation plate (100) in a vertically moving mode, the lifting output end of the lifting assembly (300) is connected with the rotating assembly (600) and drives the rotating assembly (600) to lift, and the rotating output end of the rotating assembly (600) is connected with the cutting tool (41) and drives the cutting tool (41) to rotate.

4. The ultrasonic cloth cutting device according to claim 3, wherein: lifting unit (300) including be fixed in lift cylinder (31) of mounting panel (100) and lift push pedal (32), lift cylinder (31) have first cylinder piston rod (311) that can stretch out and draw back from top to bottom, first cylinder piston rod (311) link to each other with lift push pedal (32), lift push pedal (32) constitute lifting unit (300) the lift output, link to each other with first installing support (61) in rotating assembly (600), install in mounting panel (100) first installing support (61) can reciprocate.

5. The ultrasonic cloth cutting device according to claim 4, wherein: the lifting assembly (300) further comprises a floating joint (33), and a first cylinder piston rod (311) of the lifting cylinder (31) is connected with the lifting push plate (32) through the floating joint (33).

6. The ultrasonic cloth cutting device according to claim 3, wherein: rotating assembly (600) include with the first installing support (61) that the lift output end links to each other, rotating electrical machines (62), be fixed in reduction gear (63) of first installing support (61) and pivot (64) of extending from top to bottom, first installing support (61) can be installed in mounting panel (100) with reciprocating, rotating electrical machines (62) link to each other with reduction gear (63), the output of reduction gear (63) is fixed mutually through shaft coupling (69) with the upper end of pivot (64), the lower extreme of pivot (64) constitutes rotating assembly (600)'s rotatory output end.

7. The ultrasonic cloth cutting device according to claim 4 or 6, wherein: be fixed with guide rail (65) that extend from top to bottom on mounting panel (100), be fixed with slider (66) on first installing support (61), slider (66) and guide rail (65) sliding fit.

8. The ultrasonic cloth cutting device according to claim 3, wherein: still including blade holder (42) that are fixed in rotatory output and hob shaft (43) of rotationally supporting in blade holder (42), hob shaft (43) perpendicular to rotatory output, cutter (41) are hobbing cutter (44) of suit on hob shaft (43), the periphery of hobbing cutter (44) is equipped with a circle hobbing cutter cutting edge (441).

9. The ultrasonic cloth cutting device according to claim 3, wherein: the cutter (41) is a scriber (46) fixed at the rotary output end, the lower end of the scriber (46) is provided with a U-shaped scriber head (461), and the bottom of the scriber head (461) is provided with a scriber blade (462).

10. The ultrasonic cloth cutting device according to claim 1, wherein: the ultrasonic generator assembly (500) further comprises a seat plate (52) fixed on the sewing machine frame and a pressing plate (53), the seat plate (52) is provided with a horizontally extending seat plate horizontal part (521), an installation groove (522) is formed in the upper end of the seat plate horizontal part (521), the pressing plate (53) is fixed on the seat plate horizontal part (521) and covers the installation groove (522), a circle of installation flange (512) is arranged on the periphery of the ultrasonic generator (51), and the installation flange (512) is located in the installation groove (522) of the seat plate horizontal part (521) and is pressed and fixed by the pressing plate (53).

11. The ultrasonic cloth cutting device according to claim 10, wherein: the upper side and the lower side of the mounting flange (512) are respectively provided with a damping sheet (54), and the damping sheets (54) are nylon gaskets.

12. The ultrasonic cloth cutting device according to claim 1, wherein: the clamp device is characterized by further comprising a clamp assembly (700), wherein the clamp assembly (700) comprises a second mounting bracket (71) fixed on the mounting plate (100), a clamp cylinder (72) fixed on the second mounting bracket (71) and a clamp (73), the clamp cylinder (72) is provided with a second cylinder piston rod (721) capable of stretching up and down, and the second cylinder piston rod (721) is fixed with the clamp (73); a through groove (731) which is through up and down is formed in the presser foot (73), and the cutter (41) is arranged in the through groove (731) in a penetrating mode in a lifting mode; when the presser foot cylinder (72) drives the presser foot (73) to descend, the presser foot (73) presses the cloth on the bedplate.

13. A sewing machine characterized by: the sewing machine is provided with an ultrasonic cloth cutting device according to any one of claims 1 to 12.