CN1926274B

CN1926274B - Sewing machine

Info

Publication number: CN1926274B
Application number: CN2005800000392A
Authority: CN
Inventors: 多梅尼科·博索尼
Original assignee: TECNOMORI Srl
Current assignee: TECNOMORI Srl
Priority date: 2005-02-11
Filing date: 2005-02-11
Publication date: 2012-11-28
Anticipated expiration: 2025-02-11
Also published as: DE602005021703D1; DE05718980T1; WO2006085343A1; CN1926274A; EP1846605A1; ES2316332T1; EP1846605B1; ATE470004T1; ES2316332T3

Abstract

The invention provides a sewing machine (1), which comprises a frame (2) onto which a main motor (3) is mounted. The main motor (3) is connected with a first actuating means (5) through a main driving means (4). The first actuating means (5) acts directly upon a stitch-building means (8). The sewing machine (1) further comprises a feeding means (17) for conveying a fabric and a second actuating means (15). The feeding means (17) shifts the fabric onto which seams are made. The sewing machine is characterized by also comprising a secondary motor (11) also mounted onto the frame (2). The operation of the secondary motor (11) is driven by a control means (20) and a secondary driving means (12) for transmitting the motion from the secondary motor (11) to the second actuating means (15).

Description

Sewing machines

Technical field

The present invention is relevant with a kind of Sewing machines, relates in particular to a kind of Sewing machines that is used for what is called " manual stitch " type of ornamental and functional linear slit.

Background technology

Sewing machines according to the present invention is in manufacturing clothes, and especially advantage highlights during the ornamental linear slit of high fashion, is for example making jacket, the shoulder of overcoat and shirt; Neck, cuff, pocket, skirt; Trousers gadget and handbag, suitcase, gloves are when scarf and similar finery.

Especially, this Sewing machines majority is used to make staight needle.This skill of handling needles is exactly that single line is got to the end at the cloth edge, and specialty is called a line pin.This skill of handling needles can alternately be sunken cord at the cloth edge and the back side thereof.Because the stitch particularly soft that this skill of handling needles is stitched out, be not suitable for the assembling linear slit of suture, and often make ornamental linear slit.

The characteristics and the general feature thereof of this skill of handling needles will be at large introduced in following explanation.

Known as in the industry, the Sewing machines of making ornamental and functional linear slit only is equipped with a motor handles the device that is used to make up stitch, and carries cloth (sewn seams on this cloth) through complicated lever system for this device.

Usually stitch makes up in two steps and accomplishes.The first step, the pin of band line is being hooked in line on the special hook device below the cloth.When pin was up walked, hook device was just passed line forward so that it is threaded a needle below cloth, and was fixed on original position to line and matches with the position of feeding keeping.In second step, pin walks downward again, below cloth, leans on one and pushes away the line apparatus threading, and through a vibration hook, pin band line passes cloth, and cloth also is taken up simultaneously.Yet above-mentioned Sewing machines has some defectives: the first, and their machine construction is complicated, and dumb also being difficult for improves.Machine part is easy to wear, of long duration will influence machine run.The second, element part is too much, and storage inconvenience has not only increased the difficulty of assembling, and strengthened manufacturing cost.The 3rd, known Sewing machines all is to stitch out stone sealing with flat pin, and is very big with manual effect difference of making.

Summary of the invention

Target of the present invention just provides a Sewing machines that does not have above-mentioned defective.An one of which important purpose is simplified machine construction exactly, make structure more reasonable, and reduce production costs, so its key character is the complexity that reduces mechanical structure.Another purpose is important too, reduces the wear and tear in machines rate exactly.Also have a purpose make exactly machine make with operation process in more flexible, also the handled easily person improves machine (making under the situation of finery) according to different demands.Last target just provides a kind of Sewing machines, and it can be made with manual staight needle and make the close linear slit more attractive in appearance of effect.Through according to the Sewing machines of the present invention that the application limited, above-mentioned each target all can realize.

Through to following the best, but do not have the description of restrictive embodiment, other feature and advantage of the present invention will be understood more easily.

Utilize that accompanying drawing is described not to have a restrictive embodiment, can more at large introduce characteristic of the present invention.

Description of drawings

Fig. 1 is the outward appearance front elevation of Sewing machines;

Fig. 2 is the schematic appearance side view of Fig. 1 Sewing machines;

Fig. 3 is the front elevation of the main internal structure of Fig. 1 Sewing machines;

Fig. 3 a is the enlarged drawing of a details of Fig. 3;

Fig. 3 b is the vertical view of a details of Fig. 3 a;

Fig. 4 is the profile of Sewing machines IV-IV line shown in Figure 3;

Fig. 5 is the profile of Sewing machines V-V line shown in Figure 4;

Fig. 6 is the vertical view after Fig. 3 amplifies;

Fig. 7 is the perspective view of Sewing machines stitch construction device and pay-off.

The specific embodiment

Sewing machines 1 according to the present invention shown in each figure comprises a frame 2 that main motor 3 is housed.Main drive 4 is made up of belt and pulley gear usually, and main motor 3 is exactly to drive 5 runnings of first operating means through main drive 4 to make operation.Advantageously, as shown in Figure 2, first operating means 5 comprises lower shaft 6 and last axle 7, and drive unit 4 acts directly on the said lower shaft 6, and upward the motion of axle 7 is associated with said lower shaft 6.

Above-mentioned Sewing machines 1 and traditional Sewing machines difference are that it also is equipped with a servo-motor 11, also are installed on the frame 2.It is step-by-step motor preferably, because it has higher running accuracy.

Motor 11 is directly controlled second operating means 15, and this second operating means 15 is used for moving the cloth of making linear slit on it.Second operating means 15 mainly comprises a transmission shaft 16.Servo-motor 11 is driven by control device 20 on the whole.Control device 20 is equipped with a programmable Electronic Control card 21, and this Electronic Control card 21 has the microchip (for example electronic information programming card EPS-PROG LT) by means of the appropriate software operation.Preferably, control device 20 can operatively link to each other with each functional unit of Sewing machines 1, so that control their overall operation.Advantageously; Said control device 20 also comprises the device 22 that is used to be provided with sewing parameter, is called user interface, and it forms (referring to Fig. 1) by traditional display 23 and keyboard 24; Thereby the parameter that can make the operator be provided for sewing is carried out the running of Sewing machines 1 thus.Based on this, by electronically controlled servo-motor 11, stitch lengths can be provided with through this, the most important thing is to make the linear slit of all lengths stitch.Control card 21 is converted into the irregular motion of servo-motor 11 and the irregular motion of transmission shaft 16 with the various sewing stitch of different length, directly controls the feeding process.Therefore the operator can select the frequency of basic stitch lengths and the appearance of irregular stitch according to different linear slit needs.Through Electronic Control, servo-motor 11 can be simple, accurately and with the unusual function of complicated mechanical leverage in the flexible way control Sewing machines more.

Because in Sewing machines 1 operation process should be appreciated that the working condition of servo-motor 11 all the time, so servo-motor 11 should be equipped with internal control device, particularly internal encoder and control card.In addition, can use conventional stepping motors 11 (that is, it does not have internal control device), and use external encoder instead, encoder is connected with control device 20 with motor 11, perhaps link to each other with control device 20 with second operating means 15.

It should be noted servo-motor 11 be through auxiliary drive 12 with second operating means 15, especially be connected with transmission shaft 16.As shown in Figure 5; The basic comprising of auxiliary drive 12 is two pulleys 13 (band tooth pulley is best) and a belt 14 (toothed timing belt is best); A pulley is installed on the motor 11, and another is installed on the transmission shaft 16, and belt 14 links with said two pulleys.

Introduce the stitch construction device 8 in Sewing machines 1 primary structure at last, it links with above-mentioned first operating means 5.At first this stitch construction device comprises one piece by the dials 9 on the pin 18 of lower shaft 6 operation and the frame 2 that is contained in Sewing machines 1, and dials 9 has at least one perforate 10, and pin 18 can pass said perforate and below cloth, make up stitch (Fig. 7).As known in the industry, miscellaneous part also comprises: take-up hook and sewing thread bobbin (said take-up hook and sewing thread bobbin are used for from pin 18 line of rising to the bait); One pushes away kind of thread elements and is used for to the pin threading; A vibration hook that loads the cloth top is used for going between, and especially when feeding makes up stitch, goes between.The device of more than mentioning is advantageously activated by last axle 7.

It should be noted that:, therefore do not remake detailed introduction and elaboration at this because the various accessaries of sewing machine of stitch construction device 8 all are general types.

According to Sewing machines 1 of the present invention pay-off 17 of needs (conventional apparatus as shown in Figure 7) also.This pay-off links to each other with transmission shaft 16 and by its driving.This pay-off constitutes by being installed in the base 19 in jaw place, is used for feeding when making up stitch.

As previously mentioned, the characteristic of linear slit can be carried out different settings at every turn, so Sewing machines 1 should be equipped with the device 30 of the position, angle of a definite transmission shaft 16, is used for confirming original position for the Sewing machines program that configures, and is commonly referred to " 0 point ".Preferably, when starting, press the button 35 and actuating device 30 through the user, thereby control card 21 is set.According to a preferred embodiment of Sewing machines 1 shown in the drawings, first disk 31 (Fig. 4) and at least one first sensor 33 that the device 30 of monitoring transmission shaft 16 jiaos of positions is installed on transmission shaft 16 by one and has a through hole 32 are formed.Advantageously, said first sensor 33 is position sensors, the position that is used to monitor the through hole 32 of first disk 31 come to its Electronic Control card that can operatively link to each other 21 transmission information.First disk 31 above-mentioned is furnished with an end of travel lever 34 that is installed on the transmission shaft 16, and the terminal lever of the trip in case transmission shaft 16 carries out rotation, guarantees to find the starting point of sewing process preferably against lower shaft 6.In another embodiment (not having diagram); Sewing machines 1 can also select not assemble first disk 31 and relevant with it sensor 33 and end of travel lever 34, and selects to install an encoder that links to each other with transmission shaft 16 also and can operatively link to each other with Electronic Control card 21.

Above-mentioned Sewing machines also comprises and is used for monitoring the device 40 of pin 18 with respect to the position of cloth.When pin 18 dropped on outside the cloth, this device 40 can start second operating means 15, activated pay-off 17 and stitch construction device 8 thus.Preferably, saidly be used for monitoring pin 18 and comprise one second disk 41 with respect to the device 40 of the position of cloth, this second disk 41 is installed on the lower shaft 6, and rotates together with lower shaft 6.Have suitable dihedral hole 42 (Fig. 4) on said second disk 41, this dihedral hole site is just in time corresponding with the position that pin 18 drops on outside the cloth.This dihedral hole 42 is detected by at least one second place sensor 43, said second place sensor 43 can operatively link to each other with Electronic Control card 21 (Fig. 3 and 6).

Preferred embodiment according to Sewing machines 1 of the present invention also comprises a joint sealing device 50, and the operator can start this device through button 54.It should be noted that: " joint seal " be meant on the repeated seam more than two pins, usually all can joint seal at the top of linear slit and end, in order to avoid linear slit comes loose.Joint sealing device 50 is preferred to adopt the parts of the device 40 of the said position that is used to monitor pin 18.Therefore, when operator one touches the button 54, be used to monitor the position (Fig. 6) that the second place sensor 43 of the device 40 of pin 18 positions just was activated and read the through hole 42 of second disk 41.Second place sensor 43 is carried signal to Electronic Control cards 21, the motion upset of control card control servo-motor 11 and with the cloth forced back.As selection, also can carry out joint seal through the joint sealing device that does not link to each other with the device 40 of monitoring pin 18 positions.In this case, lower shaft 6 is equipped with the disk of another band perforate, and this disk links to each other with another position sensor operation, and said another position sensor is used to monitor said perforate and suitably is connected with Electronic Control card 21.

Sewing machines 1 another feature element is a pin cleaning device 60.Said pin cleaning device advantageously comprises: one the 3rd disk, 61, the three disks 61 that are installed on the lower shaft 6 have perforate 62; At least one the 3rd position sensor 63, it is used to survey the position of the perforate 62 of the 3rd disk 61, and said the 3rd position sensor also can operatively be connected with Electronic Control card 21.When pin 18 rested on the bottom of stroke of per two operating process, when promptly pin 18 band lines dropped to the bottom and rise unwrapping wire, said the 3rd position sensor 63 was just surveyed the perforate 62 of the 3rd disk 61.When pin 18 was positioned at its bottom of stroke, said sensor started 64 pairs of pins 18 of cleaning device and cleans (Fig. 3 a and 3b) just through Electronic Control card 21.Cleaning device cleans line wax, dirt and the dust granule of piling up on the pinprick and pin 18 and line is kept clean to pin 18 jet gas 65 when operation, thereby reduces friction, reduces the possibility that breaks.According to the present invention, dials 9 preferably also improves.The length of the perforate 10 of walking in particular for pin 18 has dwindled 3/4ths, can make linear slit soft more and be fit to make special garment elements more like this, like man's jacket and overcoat.The dials 9 of improvement also can be installed on known Sewing machines.

In view of foregoing, Sewing machines 1 workflow according to the present invention is following:

Just opening the stage, main motor 3 begin to start and lower shaft 6 with on produce running continuously on the axle 7.

When the operator presses the button 35, first sensor 33 survey the perforate 32 of first disk 31 and this information conveyance to Electronic Control card 21, thereby the starting point of definite sewing process of having set.Perhaps as previously mentioned, starting point also can be confirmed by an encoder.

Simultaneously, second sensor 43 is surveyed the dihedral perforate 42 of second disk 41 and is made Electronic Control card 21 confirm that pin 18 is in the outside time that stops of cloth.

Now; 21 pairs of information of accepting by the first sensor 33 and second sensor 43 of Electronic Control card; And handle through the information of user interface input by the operator, and suitably activate second motor 11 when outside when pin 18 is parked in cloth, and therefore activate transmission shaft 16 and pay-off 17.The change in location of pin 18 also changes with the position of lower shaft 6 with the stitch construction device 8 of last axle 7 runnings thereupon.

In pin 18 runnings, the 3rd sensor 63 is surveyed the perforate 62 of the 3rd disk 61, and control card 21 can start washer 64 when pin 18 band lines drop to its bottom of stroke at every turn like this.

Usually at linear slit top or end, the operator can press the button 54 to carry out joint seal, and at this moment, second sensor 43 is surveyed the position of second disk, 41 perforates 42 and sent signal to Electronic Control card 21.This signal just is interpreted as the order of turning the rotation direction of transmission shaft 16 through servo-motor 11, thus the cloth pushed home, and on the stitch of formerly making one or more stitch of overlapping making.

In practical operation, according to different demands, any quality can be made with the cloth of size, and all parts can be replaced by technical corresponding parts.

This invention has its some important advantages, and the first, electronic installation is incorporated into has many benefits in the Sewing machines: at first; Assembling is replaced the complicated mechanical devices of traditional mechanical by the servo-motor 11 of control device control; Can simplify machine construction, convenient carrying, durable in use.Secondly; Adopt electronic installation can increase the flexibility of Sewing machines greatly, stitch lengths can be selected (0.5mm-15mm) in wideer size range, and the great talent 7mm of traditional Sewing machines stitch length; But also can make the linear slit of forming by the different length stitch, just like the manual linear slit of making.And traditional mechanical Sewing machines is the absolutely not linear slit with this effect of stitching out.The second, because machine is more flexible, so just can satisfy the demand and the requirement of client's higher degree.At last, it can make product have the attractive in appearance and value same with manual linear slit.

Claims

1. so-called manual stitch type Sewing machines (1) that is used for ornamental and functional linear slit, it is characterized in that: this Sewing machines (1) comprising:

A frame (2);

A main motor (3) that is installed on the frame (2);

Be used to make up first operating means (5) of stitch;

Main drive (4) is used for from said main motor (3) transfer movement to said first operating means (5);

Stitch construction device (8) can operatively link to each other with said first operating means (5);

Pay-off (17), it transmits cloth to the said stitch construction device (8) that needs sewing and makes stitch; And

Second operating means (15), it is used for said pay-off (17);

It is characterized in that this Sewing machines (1) also comprises:

Servo-motor (11), it is installed on said frame;

Control device (20), this control device act on said servo-motor (11) and control the operation of said servo-motor (11); And

Auxiliary drive (12), this auxiliary drive (12) are used for from said servo-motor (11) to said second operating means (15) transmitting moving.

2. according to the Sewing machines (1) of claim 1, it is characterized in that said servo-motor (11) is a motor.

3. according to the Sewing machines (1) of claim 2, it is characterized in that said servo-motor (11) is a step-by-step motor.

4. according to the Sewing machines (1) of claim 3, it is characterized in that said servo-motor (11) has an internal control device, be used to monitor the position, angle of said servo-motor (11) running.

5. according to the Sewing machines (1) of claim 3, it is characterized in that this Sewing machines (1) comprises an encoder, this encoder can operatively link to each other with servo-motor (11) and said control device (20).

6. according to the Sewing machines (1) of claim 3, it is characterized in that this Sewing machines (1) comprises an encoder, this encoder can operatively link to each other with said second operating means (15) and said control device (20).

7. Sewing machines according to claim 1 (1) is characterized in that, said auxiliary drive (12) comprises at least two pulleys (13) and at least one belt (14).

8. according to the Sewing machines (1) of claim 7, it is characterized in that said at least two pulleys (13) and said at least one belt (14) are toothed.

9. Sewing machines according to claim 1 (1) is characterized in that, said control device (20) comprises programmable Electronic Control card (21).

10. according to the Sewing machines (1) of claim 9, it is characterized in that said control device (20) also comprises a device that lets the operator set sewing parameter (22).

11. the Sewing machines (1) according to claim 10 is characterized in that, said first operating means (5) comprise a lower shaft (6) that links to each other with said main drive (4), one link to each other with lower shaft (6) and act on said stitch construction device (8) go up axle (7).

12. Sewing machines (1) according to claim 11; It is characterized in that; Said stitch construction device (8) comprises pin (18) and at least one dials (9); Said dials (9) has at least one perforate (10) and this dials (9) links with said frame (2), and said pin (18) is walked in said at least one perforate (10) of said dials (9).

13. Sewing machines according to claim 12 (1) is characterized in that, said second operating means (15) comprises a transmission shaft (16), and this transmission shaft (16) acts on said pay-off (17).

14. Sewing machines according to claim 13 (1); It is characterized in that; This Sewing machines (1) comprises a device (30) of surveying the position, angle of said transmission shaft (16), and this device that is used to survey the position, angle of said transmission shaft (16) is used for confirming to have set the original position of sewing process.

15. Sewing machines (1) according to claim 14; It is characterized in that; The said device (30) that is used to survey the position, angle of said transmission shaft (16) comprises one first disk (31) and at least one primary importance sensor (33); Said first disk (31) is installed in said transmission shaft (16) and goes up and have a through hole (32), the position of the through hole (32) of said at least one primary importance sensor (33) said first disk of monitoring (31) and can operatively link to each other with said Electronic Control card (21).

16. Sewing machines (1) according to claim 15; It is characterized in that; The said device (30) that is used to survey the position, angle of said transmission shaft (16) also comprises an end of travel lever (34) that is installed on the said transmission shaft (16), and it is used to prevent that said transmission shaft (16) from carrying out rotation.

17. Sewing machines (1) according to claim 14; It is characterized in that; The said device (30) that is used to survey the position, angle of said transmission shaft (16) comprises one first encoder, and this first encoder links to each other with said transmission shaft (16), and can operatively link to each other with Electronic Control card (21).

18. Sewing machines according to claim 12 (1); It is characterized in that; This Sewing machines (1) also comprises surveys the device (40) of said pin (18) with respect to the position of said cloth; This is used to survey said pin (18) and links to each other with said lower shaft (6) with respect to the device (40) of the position of said cloth, to start said second operating means (15).

19. Sewing machines (1) according to claim 18; It is characterized in that; Saidly be used to survey said pin (18) and comprise: second disk (41) that is installed in that said lower shaft (6) is gone up and rotates together with said lower shaft (6) with respect to the device (40) of the position of said cloth; Have a dihedral hole (42) on said second disk (41), this dihedral hole (42) is corresponding with the position that said pin (18) drops on said cloth outside; Saidly be used to survey said pin (18) and also comprise at least one second place sensor (43) of the position in the said dihedral hole (42) that is used to detect said second disk (41) with respect to the device (40) of the position of said cloth, said at least one second place sensor (43) can operatively link to each other with said Electronic Control card (21).

20. Sewing machines according to claim 19 (1) is characterized in that, this Sewing machines (1) also comprises a joint sealing device (50) that links to each other with said lower shaft (6).

21. Sewing machines according to claim 20 (1); It is characterized in that said joint sealing device (50) comprises and saidly is used to survey said pin (18) with respect to said second disk (41) of the device (40) of the position of said cloth and saidly be used to survey said pin (18) said at least one second place sensor (43) with respect to the device (40) of the position of said cloth; Said at least one second place sensor (43) can be started by the operator, its be used to monitor said second disk (41) said dihedral hole (42) the position and can operatively link to each other with said Electronic Control card (21).

22. Sewing machines according to claim 21 (1) is characterized in that, this Sewing machines also comprises the cleaning device (60) that is used for cleaning the said pin (18) that links to each other with said stitch construction device (8).

23. Sewing machines (1) according to claim 22; It is characterized in that; The said cleaning device (60) that is used to clean said pin (18) comprises and is installed in the 3rd disk (61) that perforate (62) was gone up and had to said lower shaft (6); The said said cleaning device (60) that is used to clean said pin (18) also comprises at least one the 3rd position sensor (63) of the position of the said perforate (62) that is used to detect said the 3rd disk (61); It demonstrates the state in the bottom of stroke of said pin (18) in its per two operation cycle processes; Said the 3rd position sensor can operatively link to each other with said Electronic Control card (21), and at said bottom dead centre, said Electronic Control card (21) starts said cleaning device and acts on the said pin (18).

24. Sewing machines according to claim 12 (1) is characterized in that, the diameter of the perforate (10) of said dials (9) can be made soft more sealing less than 5mm.