CN101067263B

CN101067263B - Digital control sewing machine rotary cutter device

Info

Publication number: CN101067263B
Application number: CN2007100690492A
Authority: CN
Inventors: 龚培云
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-08
Filing date: 2007-06-08
Publication date: 2011-04-27
Anticipated expiration: 2027-06-08
Also published as: CN101067263A

Abstract

The present invention discloses one kind of rotary knife device for numerically controlled sewing machine. The rotary knife device includes one cutter unit on the head of numerically controlled sewing machine, one driving motor, one large rotary wheel driven with the motor, one rotary wheel stand, one cutter limiter on the rotary wheel stand, and one cutter unit on the cutter limiter and capable of reciprocating up and down. While the numerically controlled sewing machine sews, the cutter unit under the driving of the large rotary wheel will cut off the excessive edge of the cloth along the sewing stitch, resulting in simplified production process and greatly raised production efficiency.

Description

Digital control sewing machine rotary cutter device

Technical field

The present invention relates to a kind of digital control sewing machine, relate in particular to a kind of digital control sewing machine rotary cutter device.

Background technology

Common clothing cloth cut-parts flush joint process, all be that workman's hand is by the cloth pull operation, after making, can produce unnecessary and uneven cloth cutting outside with suture again on band cutter flatcar falls, this sewing tech exists labor strength big, complex procedures, the sewing needle number is inaccurate, problems such as the difficult processing in complex curve pin road, simultaneously, because the manual mode of operation of flush joint is subjected to the limitation of workman's technology and production efficiency, flush joint band cutter car can only excise straight line, cutting as collar, when sacks etc. have the selvedge of particular curve, cut inaccurate, make that manufacturer needs to produce a large amount of artisan people of recruitment, the management difficulty and the production cost of producer have been increased, have based on this, proposed some the scheme of automatic cloth-cutting apparatus has been installed on automatic sewing machine, as the patent No. is the automatic cloth-cutting apparatus of a kind of Sewing machines of CN01134683.3, by near the sewing parts of head of sewing machine, one cover is installed by drive unit, the cutting knife mobile device, the automatic cloth-cutting apparatus that control device is formed, when needs cut cloth, driving cutting knife by drive unit pumps to finish and cuts action, can make Sewing machines return to the sewing state by control device again, thereby realize sewing and cut uniting two into one of cloth, the more original manual operations of operating efficiency has had large increase, but it and manual operations have a same defective, cutting as collar exactly, sack, when the front parts of a Chinese robe or jacket etc. have the selvedge of particular curve, adjust inconvenience, cut not accurate enough.

Summary of the invention

The objective of the invention is to address the above problem, a kind of digital control sewing machine rotary cutter device is provided, uses the digital control sewing machine of this device, in the processing of sewing, can be guaranteed that cloth edge, excision back and processing stitching keep the fixed length distance by the material periphery that sews cloth unnecessary cloth excision, finishing.

The technical scheme that the present invention adopts for achieving the above object is as follows, a kind of digital control sewing machine rotary cutter device, comprise the cutter on the head that is installed in digital control sewing machine, cutter comprises CD-ROM drive motor, the cutting knife carriage release lever in the head of being installed in CD-ROM drive motor interlock, and be installed in upper cutter on the cutting knife carriage release lever, it is characterized in that: also include drive motors, the great wheel that links with drive motors, great wheel is the below that the axle center is installed in head with the sewing machine needle, on the interior circle of great wheel, be installed with rotary wheel frame, the position of corresponding shank is provided with and the suitable round perforate of shank size on rotary wheel frame, be installed with the cutting knife stopping means in rotary wheel frame one side near the position of round perforate, one end of cutting knife carriage release lever band upper cutter stretches out from the cutting knife stopping means, and the cutting knife carriage release lever can pump in the cutting knife stopping means.

Described cutting knife stopping means comprises that one has the slide plate of arcuation groove, slide plate is installed on the rotary wheel frame, form a slideway between the arcuation groove of slide plate and the rotary wheel frame, lower slide and slide block are installed on the rotary wheel frame side by side, tool rest down is installed on lower slide, when cutting cloth, following tool rest and upper cutter are for closely cooperating to realize cutting action.

Described great wheel is installed on the head by bracing frame.

The present invention compared with prior art, have the following advantages and effect: the present invention can be when the cut-parts of digital control sewing machine sewing clothing cloth, excise the unnecessary cloth of periphery simultaneously, and the drive motors that is connected with great wheel arranged, can drive cutting knife according to shape and rotate a certain angle, guarantee that limit and the sewing thread trace behind the unnecessary cloth of excision keeps fixed length.Because cutting knife is rotatable, just can realize making and excision synchronously of curve, solved the problem that common flush joint band cutter car only is applicable to the excision straight line, simple production stage has improved work efficiency greatly.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of great wheel of the present invention;

Fig. 3 has installed the Facad structure figure of great wheel behind the cutter;

Fig. 4 is the stereoscopic-state figure of Fig. 3;

Fig. 5 is that described cutter is installed in the structural representation on the rotary wheel frame.

Number in the figure: 1 is head of sewing machine, and 2 is drive motors, and 3 is the drive motors driving wheel, and 4 is to be with synchronously, 5 is great wheel, and 6 is bracing frame, and 7 is upper cutter, and 8 are following tool rest, 9 is presser feet, and 10 is shank, and 11 is rotary wheel frame, and 12 is slideway, 13 is slide plate, and 14 is upper tool post, and 15 is last knife bar, 16 is CD-ROM drive motor, and 17 is eedle, and 18 is round perforate, 19 is lower slide, and 20 is cutter, and 21 is the cutting knife stopping means

The specific embodiment

Fig. 1 has represented to use the schematic configuration on the head 1 that the present invention is installed in digital control sewing machine, on head of sewing machine 1, the shank 10 of motion up and down is installed, eedle 17 is installed on shank 10, side at head 1 is equipped with drive motors 2, great wheel 5 of the present invention is installed in the below of head 1 by bracing frame 6, shank 10 stretches out in great wheel 5, great wheel 5 is by being connected with the driving wheel 3 of drive motors 2 with 4 synchronously, please again in conjunction with shown in Figure 2, on great wheel 5, be installed with rotary wheel frame 11, the position of corresponding shank 10 is provided with and the suitable round perforate 18 of shank 10 sizes on rotary wheel frame 11, shank 10 can pump in the round perforate 18 on rotary wheel frame 11, cutting knife stopping means 21 mainly is included in rotary wheel frame 11 1 sides and near the position of round perforate 18 slide plate 13 with arcuation groove is installed, form a slideway 12 between the arcuation groove of slide plate 13 and the rotary wheel frame 11, the position near slide plate 13 on rotary wheel frame 11 also is installed with lower slide 19.

Fig. 3, Fig. 4 is that cutter 20 is installed in the state diagram on the great wheel 5, Fig. 5 is installed in detailed structure view on the rotary wheel frame 11 for cutter, structure and operation principle shown in above-mentioned three figure are as follows: match with eedle 17 in the below that is used for the presser feet 9 that sewing fabric is pushed is installed in rotary wheel frame 11, cutter 20 is installed in a side of presser feet 9, cutter 20 structures are as follows: following tool rest 8 is installed on the lower slide 19 and is parallel with presser feet 9, and following tool rest 8 closely cooperates and is descending between tool rest 8 and the presser feet 9 to finish the upper cutter 7 that cuts action, upper cutter 7 is fixedly arranged on the upper tool post 14, upper tool post 14 is by stretching out in the slideway 12, link to each other the back and forth movement that last knife bar 15 is driven about can doing by the CD-ROM drive motor 16 that is installed on the head 1 with the last knife bar 15 in being installed in head 1.

When the cut-parts of stitching sewing machine clothing cloth, drive by CD-ROM drive motor 16 on the one hand, knife bar 15 is done motion up and down in the drive in cutting knife stopping means 21, pumping between tool rest 8 and the presser feet 9 down by upper tool post 14 interlock upper cutters 7, cooperating with following tool rest 8 by upper cutter 7 and realize cutting; On the other hand, along with Sewing machines continue to make the time, drive motors 2 is by being with 5 rotations of 4 control great wheels synchronously, thereby drive cutter 20 rotations on the great wheel 5, like this, cutter 20 just can excise the unnecessary cloth of periphery with the stitching of making of cloth, cutter 20 can be done rotation at any angle with great wheel 5, applicable to various straight lines, oblique line, circular arc and curve, only be applicable to the problem of excising straight line with regard to efficiently solving common flush joint band cutter car like this, the present invention is simple in structure, and is easy to operate, improved operating efficiency effectively.

Claims

1. digital control sewing machine rotary cutter device, comprise the cutter (20) on the head (1) that is installed in digital control sewing machine, cutter (20) comprises CD-ROM drive motor (16), the cutting knife carriage release lever (15) in the head (1) of being installed in CD-ROM drive motor (16) interlock, and be installed in upper cutter (7) on the cutting knife carriage release lever (15), it is characterized in that: also include drive motors (2), the great wheel (5) that links with drive motors (2), great wheel (5) is the below that the axle center is installed in head (1) with sewing machine needle (17), on the interior circle of great wheel (5), be installed with rotary wheel frame (11), the position of going up corresponding shank (10) at rotary wheel frame (11) is provided with and the suitable round perforate (18) of shank (10) size, the lower slide (19) of cutter (20) and presser feet (9) are installed on the rotary wheel frame (11) of great wheel (5), be installed with cutting knife stopping means (21) in rotary wheel frame (11) one sides near the position of round perforate (18), one end of cutting knife carriage release lever (15) band upper cutter (7) stretches out from cutting knife stopping means (21), and cutting knife carriage release lever (15) can pump in cutting knife stopping means (21).

2. a kind of digital control sewing machine rotary cutter device according to claim 1, it is characterized in that: described cutting knife stopping means (21) comprises that one has the slide plate (12) of arcuation groove, slide plate (12) is installed on the rotary wheel frame (11), form a slideway (13) between the arcuation groove of slide plate (12) and the rotary wheel frame (11), lower slide (19) is installed on the rotary wheel frame (11) side by side with slide plate (12), and the following tool rest (8) that matches with upper cutter (7) is installed on lower slide (19).

3. a kind of digital control sewing machine rotary cutter device according to claim 1 is characterized in that: described great wheel (5) is installed on the head (1) by bracing frame (6).