KR101164701B1 - Method for sewing belt-shaped object and apparatus for the same - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for sewing a belt-like article on cloth by eliminating the need of detecting the operation amount of the sewing machine and eliminating the problem of tension control by the number of needle driving. By setting the length dimension and tension of the belt-shaped object 3 correspondingly, when sewing the belt-shaped object 3 to the cloth 2, the amount and tension of the belt-shaped object 3 are detected and the belt-shaped object of the set length dimension is detected. (3) During the transfer, a corresponding tension is applied to the strip 3. In this way, the tension 2 is controlled by the feed amount of the belt-shaped object 3 to the sewing machine 4, not the operation amount of the sewing machine 4 such as the number of needle driving and the rotational speed of the drive shaft.

Description

METHOD FOR SEWING BELT-SHAPED OBJECT AND APPARATUS FOR THE SAME}

The objects, features and advantages of the present invention will become apparent from the following detailed description and drawings.

1 is a perspective view showing a belt-shaped sewing apparatus according to an embodiment of the present invention.

2 is a block diagram showing an electrical configuration of a sewing apparatus.

3 is a perspective view showing a sewing machine;

4 is a perspective view illustrating women's shorts as an example of a sewing product.

Fig. 5 is an enlarged perspective view showing a part of the leg portion of the women's shorts.

6 is a perspective view showing main components of the transfer apparatus;

7 is a side view showing the main components of the conveying device.

8 is a front view illustrating an operation panel.

9 is an enlarged front view of a display manipulation unit provided with a second display portion;

10 is a flowchart showing a control operation of controlling a tension by a feed amount in a control unit;

Fig. 11 is a flowchart showing a Go Mode operation in the control unit.

12 is a flowchart showing the operation of the control unit in copying the sewing mode.

Fig. 13 is a flowchart showing a method of setting length dimension and tension in each step using the learning function of the control unit.

14 is a perspective view showing a sewing apparatus 1A according to another embodiment of the present invention.

15 is a perspective view showing a sewing apparatus 1B according to another embodiment of the present invention.

16 is a perspective view showing a bra as another example of a sewing product.

17 is an enlarged perspective view showing a part of an under bust portion of a bra.

<Explanation of symbols for the main parts of the drawings>

1: sewing device

2: cloth

3: strip shape

4: sewing machine

5: transfer device

7: support device

10: transfer mechanism

11: feed motor

12: load sensor

13: encoder

14: input unit

15: control unit

17: drive roller

18: driven roller

24: operation panel

30: clamp lever movement detection unit

31: warning unit

33: memory

53: needle drive count detection unit

55: spool

57: mode switch key

The present invention relates to a method and an apparatus for sewing a strip of cloth on a cloth.

In products that are made by sewing a band-like material on the fabric, the part to be sewn while applying tension to the band-like material to finish the cloth is reduced after sewing, and the band-like material is applied to finish the cloth after sewing. There are some products that you want to sew so as not to sew. In the case of sewing such a product, each part is divided into a plurality of processes, the tension and the number of needle driving are set for each process, and the correspondingly set tension is applied to the band-shaped material during the sewing operation of the set number of needle driving for each process. A belt-like object is sewn on the cloth while giving. Such a prior art belt sewing method is shown, for example, in Japanese Patent Laid-Open No. 62-213789.

As in the belt sewing method described in Japanese Patent Laid-Open No. 62-213789, in the configuration in which the number of needle driving and the tension are controlled correspondingly, changes in the size of the cloth and the amount of transfer of the cloth per needle in the sewing machine If it occurs, since the total number of needle driving from the start of sewing to the end of sewing changes, the total number of needle driving after the change is recalculated, and the relationship between the number of needle driving and the tension for each process must be re-entered. In this way, recalculation and reentry have been a detrimental factor in improving the efficiency of sewing operations. In addition, when an end part such as a joint part exists in the cloth, a phenomenon may occur in which the amount of conveyance of the cloth per needle (hereinafter referred to as "sewing pitch") becomes small in front of this end. In the sewing machine, the inertia force is generated in the cloth feed mechanism by the rotational speed of the drive shaft, and the sewing pitch is changed. In this configuration, when the sewing pitch is changed, the number of needle driving and the tension are controlled correspondingly, the number of needle driving to the fabric becomes insufficient or excessive, and the tension of the band-like article is switched at an undesired position in the fabric. Occurs. In order to solve the problem of the shortage and the excess of the number of needle driving, a configuration of applying correction to the number of needle driving is also considered. However, only the correction does not completely eliminate the shift of the switching position. In addition, in order to control the tension by the number of needle driving, a mechanism for detecting the operation amount of the sewing machine, such as the number of needle driving or the rotational speed of the drive shaft that can be converted into the number of needle driving, becomes essential, and has a mechanism for detecting the operation amount. It is not applicable to sewing machines that are not.

Another prior art belt sewing method is shown, for example, in Japanese Patent Laid-Open No. 2004-201809. In the belt sewing method of Japanese Patent Laid-Open No. 2004-201809, a belt-like article is fed so that a target feed amount and a target tension are input for each step, and the belt-shaped material of the target feed amount is transferred to the target tension for each step. The drive motor of the roller is controlled. In the configuration of Japanese Patent Laid-Open No. 2004-201809, a sewing machine detects the rotational speed of a drive shaft for driving a needle or the like, synchronizes a drive motor of a roller that feeds strips with a drive shaft of the sewing machine, and fabrics in the sewing machine. The tension of the belt-shaped article is controlled by controlling the ratio between the feed rate of the belt-shaped article to be conveyed together with the speed fed by the roller. As described above, also in the belt sewing method described in Japanese Patent Laid-Open No. 2004-201809, a mechanism for detecting the operation amount of the sewing machine becomes essential as in the belt sewing method of Japanese Patent Laid-Open No. 62-213789. The present invention cannot be applied to a sewing machine which is not equipped with a mechanism for detecting this operation amount.

Moreover, the tape feeder used for another conventional belt-shaped sewing method is shown by Unexamined-Japanese-Patent No. 3430246. The tape feeder of Japanese Patent No. 3430246 is a device for conveying strips on a sewing machine in sewing strips on fabrics, and is provided with a plurality of inputs, and different tensions are inputted by the inputs, When it is turned on, the tension of the strip-shaped article is configured to be switched to the tension input from each input device in a predetermined order. In the tape feeder of Japanese Patent No. 3430246, it is considered that, when the sewing switch of different tension is reached and the switching switch is turned on in order to switch the tension of the belt-like article, the conveying state of the cloth is to be grasped in the sewing machine. . The conveyance state of the cloth in this sewing machine is the operation amount of the sewing machine such as the rotational speed of the drive shaft or the number of needle driving in the sewing machine. Therefore, also in the sewing method of the strip-shaped object using the tape feeder of Unexamined-Japanese-Patent No. 3430246, the mechanism which detects the operation amount of a sewing machine becomes essential, and it is applicable to the sewing machine which is not equipped with the mechanism which detects this operation amount. none.

It is an object of the present invention to provide a belt-shaped sewing method and apparatus that does not require the detection of the operating amount of a sewing machine, and in particular, can solve the problem of the control of tension by the number of needle driving.

The present invention provides a method of sewing a strip on a cloth by transferring the strip to a sewing machine.

Set the length dimension of the strip shape to be sewn on the cloth and the tension to be given to the strip shape at the time of sewing.

When the belt is transported to the sewing machine to sew the belt to the fabric, the amount and tension of the belt are detected and the corresponding tension is applied to the belt during transfer of the belt of the set length dimension. It is a belt-shaped sewing method characterized in that the sewing by controlling the tension with a feed amount for the sewing machine.

According to the present invention, the length and the tension of the strip are set correspondingly, and when the strip is sewn onto the fabric, the amount and tension of the strip are detected, and the set length is conveyed while the strip is conveyed. A tension set corresponding to the length dimension is given to the strip-shaped article. In this way, the tension of the strip is controlled not by the amount of operation in the sewing machine, such as the number of needle driving in the sewing machine, the rotational speed of the drive shaft, but by the feed amount to the sewing machine. Therefore, it is not necessary to detect the operation amount of the sewing machine, it is also applied to the sewing machine which does not have a mechanism for detecting the operation amount of this sewing machine, and it is possible to sew belt-like objects on the cloth. In addition, the problem as described above in the case of controlling the tension by the number of needle driving can be solved, and the band-shaped material of the length dimension to be sewn can be sewn in a state in which the tension to be given is given.

In addition, in the present invention, the thickness dimension of the belt-like article conveyed to the sewing machine is detected,

It is characterized by a warning when the thickness dimension of the strip is changed.

According to this invention, the thickness dimension of the strip | belt-shaped thing conveyed to a sewing machine is detected, and a warning is issued when the thickness dimension of the detected strip | belt-shaped thing changes. The joint of the strip is larger in thickness than the other parts. By detecting a change in the thickness dimension and warning, it is possible to prevent the parts having different thickness dimensions, such as the joints of the strip-shaped material, from being supplied to the sewing machine to be sewn onto the fabric, and to prevent problems such as deterioration of product quality. .

In addition, in the present invention, a plurality of sewing modes in which the length dimension of the belt-shaped object to be sewn and the tension to be applied to the belt-shaped object at the time of sewing are correspondingly registered are registered.

Select the sewing mode to use from each registered sewing mode,

Based on the length dimension and tension of the strip-shaped article set in the selected sewing mode, the tension is controlled by the feed amount to the sewing machine of the strip-shaped article, and the strip-shaped article is sewn on the fabric.

According to the present invention, a plurality of sewing modes are registered, length lengths and tensions of the band-shaped article are correspondingly set for each sewing mode, and a sewing mode to be used for sewing is selected from each sewing mode, and in the selected sewing mode, During the transfer of the strip of the set length dimension, control is made to give the strip to the corresponding tension. Accordingly, the sewing mode is selected in advance by corresponding to each of the plurality of sewing products, registering the sewing mode, and setting the length dimension of the belt shape to be sewn and the tension to be applied to the belt shape at the time of sewing. It is easy to cope with the change of the sewing product which should be made, and it can sew to a cloth in the state which gave the strip | belt shape the tension which accord | matched the sewing product.

In the present invention, the information about the conveying amount of the strip-shaped article is displayed, and as one of the information about the conveying amount of the strip-shaped article, if the conveying amount from the start of sewing of the strip-shaped article is close to the length dimension of the set strip-shaped article, It is characterized in that the indicator indicates that the sewing of the strip-shaped object of the set length dimension is close to the end.

According to this invention, by displaying the information about the predetermined | prescribed conveyance amount, an operator can advance sewing work efficiently, grasping the information about a conveyance amount. In addition, as one piece of information about the conveyance amount of the strip, when the conveyance amount from the start of sewing the strip is close to the length of the set strip, the indicator indicates that the sewing of the strip of the set length is close to the end. Display. Accordingly, the operator can easily grasp the sewing of the band-shaped object of the set length dimension by the indication by the indicator, compare it with the position of the cloth by eye, and easily determine whether the sewing operation is proceeding well. It is possible to realize sewing of a high quality product. In addition, since the sewing of the strip-shaped material having the set length dimension is close to the end, it is not displayed by a numerical value or the like, but is displayed by the indicator, so that the operator can easily grasp the indicator without looking at the indicator.

Moreover, this invention is a sewing apparatus for sewing the strip | belt-shaped thing to cloth,

Sewing machine to sew bands on the fabric,

A transfer mechanism for sandwiching the belt-like article and transferring the belt-shaped article to the sewing machine;

A drive unit for driving the transfer mechanism;

A tension detector for detecting the tension of the band-like article between the transfer mechanism and the sewing machine;

A feed amount detector for detecting a feed amount of the strip-shaped object by the feed mechanism;

An input unit for correspondingly inputting and setting the length dimension of the belt-shaped material to be sewn on the cloth and the tension to be applied to the belt-shaped material at the time of sewing;

On the basis of the tension detected by the tension detecting unit and the conveying amount detected by the conveying amount detecting unit, the drive unit is controlled so as to give a corresponding tension to the band-shaped object while conveying the band-shaped object of the set length dimension to the sewing machine of the band-shaped object. Belt-shaped sewing machine characterized in that it comprises a control unit for controlling the tension with respect to the feed amount.

According to the present invention, the transfer mechanism is driven by the drive unit, the belt is sent to the sewing machine, and the belt is sewn on the fabric by the sewing machine while the tension is applied to the belt by sandwiching the belt. do. The tension of the strip is detected by the tension detection unit, and the amount of the strip is detected by the feed amount detection unit. The control unit controls the drive unit to apply a corresponding tension to the belt-like object while the belt-shaped object is input by the input unit and is transferred based on the detected tension and the amount of feed. In this way, the tension of the belt-shaped object is controlled by the control unit by the feed amount of the belt-shaped object to the sewing machine, not the amount of operation in the sewing machine, such as the number of needle driving in the sewing machine, the rotational speed of the drive shaft, and the like. Therefore, it is not necessary to detect the operation amount of the sewing machine, and it is also applicable to the sewing machine which does not have a part which detects the operation amount of this sewing machine, and it is possible to sew a strip | belt-shaped object to cloth. In addition, the problem as described above in the case of controlling the tension by the number of needle driving can be solved, and the band-shaped material of the length dimension to be sewn can be sewn in a state in which the tension to be given is given.

Moreover, in this invention, the thickness dimension detection part which detects the thickness dimension of the strip | belt-shaped thing which passes through a conveyance mechanism,

Further comprising a warning unit for warning,

The said control part makes a warning part give a warning, when the thickness dimension of the strip | belt-shaped thing detected by the thickness dimension detection part changes.

According to this invention, the thickness dimension of the strip | belt-shaped thing which passes through a conveyance mechanism by the thickness dimension detection part is detected. The control unit issues a warning to the warning unit when the thickness dimension of the band-shaped object to be detected changes. The joint of the strip is larger in thickness than the other parts. If parts having different thickness dimensions are sewn on the fabric, such as seams, there is a risk that the quality of the product will be reduced. By detecting a change in thickness dimension and giving a warning, it is possible to prevent the joint portion of the strip-shaped material from being fed to the sewing machine and sewn onto the fabric, and to prevent problems such as deterioration of product quality.

The present invention further includes a storage unit for storing a plurality of sewing modes in which the length dimension of the belt-shaped object to be sewn and the tension to be applied to the belt-shaped object at the time of sewing are corresponded.

The input unit is capable of inputting mode selection information for selecting a sewing mode to use from each sewing mode stored in the storage unit,

The control unit is characterized in that the tension is controlled by the feed amount of the belt-shaped object to the sewing machine based on the length dimension and the tension set in the sewing mode selected by the mode selection information input by the input unit.

According to the present invention, a plurality of sewing modes can be stored and registered in the storage unit, mode selection information can be inputted by the input unit, and the sewing mode can be selected. For each sewing mode, the length dimension and tension of the strip-shaped article are set correspondingly. The control unit controls the drive unit to impart a corresponding tension to the belt-shaped object while transferring the belt-shaped object of the set length dimension in the selected sewing mode. Accordingly, by simply registering the sewing mode corresponding to each of the plurality of sewing products, and setting the length dimension of the belt-shaped object to be sewn and the tension to be applied to the belt-shaped object at the time of sewing, simply selecting the sewing mode, Easily responds to changes in the sewing product to be sewn, and can be sewn to the fabric in a state in which a tension matching the sewing product is imparted to the strip.

In addition, in the present invention, further comprising a display unit having an indicator, for displaying information,

The control unit displays, on the display unit, information about a predetermined amount of transfer based on the amount of transfer detected by the transfer amount detection unit, and as one of information about the amount of transfer of the strip-shaped article, the amount of transfer from the start of sewing of the strip-shaped article. When the length of the belt-shaped object is close to the set length, it is characterized by causing the indicator to indicate that the sewing of the belt-shaped object of the set length is close to the end.

According to this invention, the display part is controlled by the control part, and the information about the predetermined | prescribed conveyance amount is displayed by the display part based on the conveyance amount detected by the conveyance amount detection part. Thereby, an operator can advance sewing work efficiently, grasping the information about a conveyed quantity. In addition, as one piece of information about the conveyance amount of the strip, when the conveyance amount from the start of sewing the strip is close to the length of the set strip, the indicator indicates that the sewing of the strip of the set length is close to the end. Display. Accordingly, the operator can grasp the sewing of the band-shaped object of the set length dimension close to the end by the indicator display, compare with the position of the cloth by eye, and easily determine whether the sewing operation is proceeding well. It is possible to realize high quality product sewing. In addition, since sewing of the strip | belt-shaped object of the set length dimension is close to completion | finished, it is not displayed by numerical value etc., but is displayed by the indicator light, and an operator can grasp | ascertain easily, without looking at an indicator light.

In addition, the present invention, further comprises a needle driving number detecting unit for detecting the number of needle driving in the sewing machine,

The input unit is capable of inputting operation selection information for selecting any one of a control operation controlled by a feed amount and a control operation controlled by the number of needle driving, while providing a number of needle driving times and a tension to be applied to the belt-shaped object at the time of sewing. Can be entered correspondingly,

When the control operation controlled by the feed amount is selected, the control unit has a corresponding tension while transferring the strip-shaped material having a set length dimension based on the tension detected by the tension detector and the feed amount detected by the feed amount detector. The tension is controlled by the tension detection unit and the number of times the needle drive is detected by the tension detector when the control unit controls the drive unit to control the tension, the tension is controlled by the feed amount to the sewing machine, and the needle drive count is selected. On the basis of the detected number of needle driving, while the sewing machine is operating the set number of needle driving, controlling the drive unit to give a corresponding tension to the band-shaped object, characterized in that the tension is controlled by the number of needle driving of the sewing machine .

According to the present invention, operation selection information for selecting any one of a control operation for controlling the tension by the input unit and a control operation for controlling the tension by the number of needle driving can be input. The control unit controls the driving unit to give a corresponding tension to the belt-like object while transferring the belt-shaped object of the set length dimension, based on the detected tension and the feed amount, when the control operation to control by the feed amount is selected. The tension is controlled by the feed amount to the sewing machine. Further, when the control operation controlled by the number of needle driving is selected, the control unit, based on the detected tension and the number of needle driving, provides the belt with a corresponding tension while the sewing machine operates the set number of needle driving. The drive unit is controlled and the tension is controlled by the number of needle driving of the sewing machine. Thus, since tension control by the feed amount and tension control by the frequency | count of a needle drive can be selected, the belt sewing machine of high convenience can be realized.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a belt sewing machine (hereinafter referred to as a "sewing device") 1 according to an embodiment of the present invention. 2 is a block diagram showing the electrical configuration of the sewing apparatus 1. The sewing apparatus 1 is an apparatus for sewing the strip 3 on the cloth 2 in accordance with the strip sewing method (hereinafter referred to as the "sewing method") of the present invention, and the sewing machine 4 performing a sewing operation. ) And a belt-shaped material conveying device (hereinafter referred to as "feeding device") 5 for conveying the belt-shaped object 3 to the sewing machine 4. In the present embodiment, the conveying device 5 is a device for conveying the strip 3 in the strip conveying direction B toward the sewing machine 4, and in this embodiment, the sewing device is supported by the support device 7. It is provided above (4), and the strip | belt-shaped object 3 is conveyed to the sewing machine 4 from the upper side.

3 is a perspective view showing the sewing machine 4. The sewing machine 4 is made of the cloth 2 and the belt-like article by a feed tooth (not shown) in a state where the cloth 2 and the belt-like article 3 are sandwiched by the needle plate 100 and the pressing member 101. While 3) is conveyed in the cloth conveyance direction A, the stitches 102 are sewn by the vertical reciprocating motion of the needle 102, and the strip 2 is sewn onto the cloth 2. The strip | belt-shaped object 3 also called tape etc. may be a strip | belt-shaped thing which has elasticity, and the strip | belt-shaped thing which does not have elasticity may be sufficient as it.

Fig. 4 is a perspective view showing the women's shorts 6 as an example of a sewing product. 5 is an enlarged perspective view showing a part of the leg portion of the women's shorts 6. The sewing machine 4 is not particularly limited, but in the present embodiment, the sewing machine 4 is an overlock sewing machine. For example, the sewing machine 4 is elastic in the leg portion of the cloth 2 constituting the main body of the female shorts 6 shown in FIGS. 4 and 5. It is used to sew elastic strips 3 and the like that are elastically stretched, such as rubber tape, for imparting a seal. The sewing machine 4 also includes the sewing of the rubber tape to the waist of the women's shorts 6, the sewing of the girdle's legs and the rubber tape to the waist, in addition to the legs of the women's shorts 6; It may be used to sew other sewing products constituted by sewing the strip 3 on the fabric 2, such as sewing rubber tapes to waists such as swimwear and trunks.

6 is a perspective view showing main components of the conveying device 5. 7 is a side view showing the main components of the conveying device 5. 1 and 2 together, the sewing apparatus 1 is a configuration of the conveying apparatus 5, which includes a conveying mechanism 10, a conveying motor 11 as a driving part, a load sensor 12 as a tension detecting part, and And an encoder 13 serving as a feed amount detection unit, various switch input units (hereinafter referred to as "input units") 14 as input units, and a control unit 15.

The transfer mechanism 10 has a drive roller 17 and a driven roller 18. The drive roller 17 is rotatably supported about the drive axis L17 by the housing 19 of the conveying apparatus 5 supported by the support apparatus 7. The transfer mechanism 10 has a clamp lever 20 in the vicinity of the drive roller 17. The clamp lever 20 is supported by the housing 19 so that the clamp lever 20 can be rocked about the rocking axis L20 at the base end. The driven roller 18 is rotatably supported by the free end of this clamp lever 20 about the driven axis L18. The drive axis L17, the driven axis L18 and the swing axis L20 are horizontal axes parallel to each other.

The feed mechanism 10 has a spring member (not shown) which applies the clamping force to the clamp lever 20 in the direction in which the driven roller 18 adjoins the drive roller 17. By the pressing force of this spring member, the driven roller 18 is elastically pressed so that the driving roller 17 may approach. This conveyance mechanism 10 elastically clamps the strip | belt-shaped object 3 by the drive roller 17 and the driven roller 18, and the strip | belt-shaped object is rotated by the drive roller 17 and the driven roller 18 rotating. (3) is transferred to the sewing machine (4).

The feed motor 11 is a motor which drives the feed mechanism 10, and rotates the drive roller 17. FIG. The feed motor 11 is not particularly limited, and various motors can be used. In this embodiment, a small motor such as a brushless DC motor is used. In this embodiment, the feed motor 11 is installed in a state embedded in the drive roller 17. When the drive roller 17 is driven to rotate by the feed motor 11, the driven roller 18 is driven to follow.

The tension roller 21 is provided in the conveying apparatus 5. The tension roller 21 is rotatably supported about the tension roller axis line L21 via the support member 90 to the housing 19. The belt-like object 3 is wound around this tension roller 21 between the transfer mechanism 10 and the sewing machine 4. The load sensor 12 as the tension sensor is realized by two strain gauges in the present embodiment, and in the housing 19, two points of concave portions formed in the support member 90 supporting the tension roller 21. It sticks together so that each may fit. The load corresponding to the tension of the belt-shaped object 3 wound around the tension roller 21 acts on this support member 90, and deformation | transformation arises. The load sensor 12 detects the deformation of the support member 90 as the load on the support member 90, and detects the tension of the belt-shaped object 3 between the transfer mechanism 10 and the sewing machine 4. Can be. The load sensor 12 is realized as a strain sensor such as a strain gauge in this embodiment, but is an example of a tension sensor that detects the tension of the belt-shaped article 3 to the last, and is a band of a tension sensor other than the load sensor 12. The tension of the shaped body 3 may be detected.

In addition, the sensor guard 22 is provided in the vicinity of the tension roller 21. The sensor guard 22 prevents the article from colliding with the tension roller 21, prevents imparting a large deformation to the load sensor 12, and prevents damage to the load sensor 12.

The encoder 13 is a mechanism for detecting the feed amount of the strip 3 by the feed mechanism 10. The encoder 13 is installed in the feed motor 11 in a state of being embedded in the drive roller 17. The encoder 13 detects the angular displacement angle of the output shaft of the feed motor 11. The feed amount of the strip | belt-shaped object 3 by the feed mechanism 10 corresponds to the angular displacement angle of the output shaft of the feed motor 11, and detects the angular displacement angle of the output shaft of the feed motor 11, The feed mechanism ( The conveyance amount of the strip | belt-shaped object 3 by 10) can be detected.

8 is a front view illustrating the operation panel 24. Referring to FIG. 6 together, the transfer device 5 is provided with an operation panel 24 connected to the housing 19 via a bracket. Most of the various operation keys constituting the input unit 14 are provided in the case 25 of the operation panel 24. The operation key of the input part 14 provided in the operation panel 24 is provided so that it may face the upstream side of the cloth conveyance direction A. As shown in FIG. The input unit 14 is a unit operated by an operator, and according to this operation, the length dimension of the belt-shaped object 3 to be sewn to the cloth 2 and the tension to be applied to the belt-shaped object 3 during sewing are corresponded. Can be entered and set.

1, 2, and 6 again, the control unit 15 is realized by, for example, a microcomputer, and is installed in a control box (not shown). The control box is installed below the sewing machine 4, for example. The controller 15 transfers the corresponding tension to the belt-shaped object 3 while transferring the belt-shaped object 3 of the set length dimension based on the tension detected by the load sensor 12 and the feed amount detected by the encoder. The feed motor 11 is controlled through the motor drive unit 27 which is a driver circuit so as to provide to. In this way, the control part 15 controls the tension | tensile_strength of the strip | belt-shaped object 3 by the conveyance amount with respect to the sewing machine 4 of the strip | belt-shaped object 3. In this way, the sewing apparatus 1 is not an operation amount of the sewing machine 4, such as the number of needle drivings in the sewing machine 4, the rotational speed of the drive shaft, but the conveying amount of the belt-shaped object 3 in the conveying apparatus 5. The belt-like article 3 of the cloth 2 is sewn on the sewing machine 4 while controlling the tension of the belt-shaped article 3 by using the same.

In addition, in the case of controlling the tension of the strip 3 by the feed amount of the strip 3 to the sewing machine 4, one process of sewing the strip 3 to a predetermined portion of the cloth (2) For the above, only the length dimension of the strip 3 to be sewn to the fabric 2 and the tension to be applied to the strip 3 at the time of sewing may be set and controlled correspondingly. 2) is divided into a plurality of portions, and the stitches of the strip 3 on one portion are made into one process, and for the plurality of processes, the strips 3 to be sewn onto the cloth 2 as described above. The length dimension and the tension which should be given to the strip | belt-shaped object 3 at the time of sewing may be set and controlled correspondingly. For example, when sewing the shorts for women 6 shown in FIG. do. In such a case, each part is divided into first to third steps, which are three steps, and the length dimension and tension of the strip 3 are set and controlled for each step.

1, 2, 6, and 7, the sewing apparatus 1 is a configuration of the conveying apparatus 5, and includes a clamp lever movement detecting unit 30 and a warning unit 31, which are thickness dimension detecting units. Equipped. The clamp lever movement detection unit 30 is a device that detects the thickness dimension of the strip 3 passing through the transfer mechanism 10, and is a device that detects a change in the thickness dimension. If the thickness dimension of the strip 3 passing between the drive roller 17 and the driven roller 18 of the transfer mechanism 10 changes, the distance between the drive roller 17 and the driven roller 18 changes. The clamp lever 20 is angularly displaced. The clamp lever movement detection unit 30 is realized by, for example, a hall IC, detects the angular position of the clamp lever 20, and detects the thickness dimension of the strip 3 passing through the transfer mechanism 10.

The warning part 31 is a structure which performs at least any one warning operation | movement among the operation | movement which raises an alarm and the operation | movement which stops the conveyance of the strip | belt-shaped object 3. The operation of emitting an alarm may be an operation of emitting at least one of an alarm sound and an alarm light. The operation of stopping the conveyance of the belt-shaped object 3 includes, for example, an operation of braking a sewing machine motor (not shown) for driving a drive shaft installed in the sewing machine 4, an operation of stopping power supply to the sewing machine motor, a sewing machine motor. May be an operation of instructing the control drive to stop the sewing machine motor.

The control part 15 causes the warning part 31 to warn when the thickness dimension of the strip | belt-shaped object 3 detected by the clamp lever movement detection part 30 changes. Thereby, the worker can be notified that a portion different in thickness from the remaining portion, such as the joint portion of the strip-like material, has passed through the transfer mechanism 10.

The sewing apparatus 1 also includes a data storage section (hereinafter referred to as a "memory section") 33 as a configuration of the transfer apparatus 5. The storage unit 33 is realized by, for example, a semiconductor memory, and stores the information in a readable manner by the control unit 15. In this storage section 33, the length dimension of the strip 3 to be sewn and the tension to be applied to the strip 3 at the time of sewing are correspondingly stored. In the present embodiment, a plurality of sewing modes are set, and the length dimension of the belt-shaped object 3 to be sewn for each sewing mode and the tension to be applied to the belt-shaped object 3 at the time of sewing are set correspondingly. The sewing mode is stored together with the set length dimension and tension of the belt-like article 3. This sewing mode can be set for each kind of product, for example. In the case of a product in which the strip 3 is sewn onto the cloth 2 divided into a plurality of steps, in the sewing mode, the length of the strip 3 to be sewn at each step and the strip 3 at the time of sewing. The tension to be given to is set correspondingly. In this manner, the plurality of sewing modes can be stored in the data storage unit 33 and registered.

The input part 14 mentioned above can input mode selection information which selects the sewing mode to be used for sewing the strip | belt-shaped object 3 to the cloth 2 from each sewing mode memorize | stored in the memory | storage part 33. FIG. When the sewing mode is selected by the operation of the input unit 14, the controller 15 controls the sewing machine 4 of the belt-shaped object 3 based on the length dimension and the tension of the belt-shaped object 3 set in the selected sewing mode. The tension is controlled by the feed amount. By registering a plurality of sewing modes in this way, when changing the product to be sewn, it is sufficient to select only the sewing mode and to easily change the product.

In addition, the sewing device 1 includes a first display unit 35 and a second display unit 42 that constitute the display unit as a configuration of the transfer device 5. As shown in FIG. 6 and FIG. 8, the first display portion 35 faces the case 25 of the operation panel 24 on which the input portion 14 is provided so as to face the upstream side of the cloth conveyance direction A. FIG. It is installed. The first display unit 35 has a liquid crystal display panel unit 36 and can display various types of information. The liquid crystal display panel section 36 displays the length dimension and tension of the belt-shaped article 3 input by the input section 14 or set in the sewing mode stored in the storage section 33, and further, the input section. Information to assist the operation of the input unit 14, furthermore, operation of the input unit 14, for example, in the case of setting and inputting the length dimension and tension of the belt-shaped object 3 in each sewing mode by operating (14). It is used to display the result.

In addition, the liquid crystal display panel unit 36 can display information about the conveyed amount. The liquid crystal display panel 36 is information about a conveyance amount, for example, the amount of use of the strip 3 and the like of a strip per unit time such as 1 hour or per unit day such as 1 hour or per day for each product, for example, for each process. The remaining amount after subtracting the total amount of use from the total length of (3) can be displayed. The information regarding the conveyance amount of the strip | belt-shaped object 3 is calculated | required by the control part 15 based on the detection result of the conveyance amount by the encoder 13, and this control part 15 is the liquid crystal display panel part 36 Make sure to mark Thereby, the worker can grasp | ascertain the information regarding the conveyance amount of the strip | belt-shaped object 3 easily.

In addition, the first display unit 35 includes a power supply lamp 37 and a cloth sensor lamp 38. When the power supply lamp 37 is in a state where electric power is supplied to the transfer device 5, the power supply lamp 37 is controlled and turned on by the control unit 15 to display that it is in an operational state. When the cloth sensor 38 detects that the cloth 2 is in the sewing position by the cloth sensor 40 installed by being attached to the sewing machine 4 as shown in FIG. It is controlled and turned on, and it shows that the cloth 2 is arrange | positioned at a sewing position. The sewing position is a position where the cloth 2 and the strip 3 are sewn by the needle 102.

The cloth sensor 40 is an optical sensor, for example, and has the main body 47 provided above the sewing machine bed 103 in the vicinity of a sewing position, and the reflecting plate 48 provided in the sewing machine bed in the vicinity of a sewing position. The main body 47 is provided with a light transmitting portion and a light receiving portion, and the presence or absence of the cloth 2 is detected by whether or not light emitted from the light transmitting portion can receive the light reflected by the reflector 48. Moreover, even if the structure which attaches a light receiving part in the position of the reflecting plate 48 as the cloth sensor 40 is carried out, the presence or absence of cloth can be detected similarly.

9 is an enlarged front view of the display operation unit 50 on which the second display unit 42 is provided. As shown in FIG. 3, the 2nd display part 42 is provided in the display operation unit 50 attached to the sewing machine 4 toward the upstream side of the cloth conveyance direction A. As shown in FIG. The 2nd display part 42 is arrange | positioned in the position which falls in the range of the visual field of the worker, in the state which an operator watches the sewing position. The second display section 42 omits the subscripts a to e when the digital display section 44 for displaying numerical values and a plurality of indicator lights 45a to 45e (hereinafter, collectively referred to as "four" in the present embodiment). )

The digital display unit 44 displays a process number that is controlled and executed by the control unit 15. Each indicator 45 is one of the information about the conveyance amount of the strip | belt-shaped object 3 controlled by the control part 15, and the conveyance amount from the start of sewing of the strip | belt-shaped object 3 is the set strip | belt-shaped object 3 When the length is close to, the sewing of the strip 3 of the set length is displayed as close to the end. The control part 15, based on the detection result by the encoder 13, when the conveyance amount from the start of a process is close to the length dimension of the strip | belt-shaped object 3 set in the process, each indicator light 45 is carried out. Lights up and indicates that the process is nearing completion.

In the present embodiment, the control unit 15 increases the number of indicators 45 to light up as the process proceeds, corresponding to the progress of the process, thereby turning off all the indicators 45 until the final stage of the process. And all indicators 45 flash at the end of the process. In this way, the progress of the process is displayed and the end of the process is displayed. The operator can grasp the progress of the process and the end of the process without having to watch the second display unit 42.

1, the sewing apparatus 1 is provided with the spool 55 provided in the upstream side of the conveyance mechanism 10 in the strip | belt-shaped object conveyance direction B. As shown in FIG. A strip-shaped material 3 is wound around the spool 55 and installed. The spool 55 is driven by rotation in the direction in which the belt-shaped object 3 is tensioned in the opposite direction to the belt-shaped object conveying direction B by a built-in motor (not shown). Tangle and twist of the strip | belt-shaped object 3 supplied to (10) can be eliminated. As the motor for driving the spool 55, a motor capable of rotating driving in both forward and reverse directions and capable of changing the rotational driving speed is used. By using such a motor, the strip | belt-shaped object 3 can be loosened according to the conveyance speed of the strip | belt-shaped object 3 by the transfer mechanism 10, and the strip | belt-shaped object 3 can be smoothly supplied to the transfer mechanism 10. FIG. Moreover, the rotational speed of the spool 55 can be changed according to the kind of strip | belt-shaped object 3, and the strip | belt-shaped object 3 can be loosened suitably.

In addition, in the present embodiment, the control unit 15 is capable of a control operation of controlling the tension by the number of needle driving and a control operation of manually changing the tension, in addition to the control operation of controlling the tension by the above-described feed amount of the belt-shaped object 3. Do. The control operation of controlling the tension by the number of needle driving and the control operation of manually changing the tension are not essential structures but control operations provided to increase convenience.

In order to enable a control operation for controlling the tension by the number of needle driving, the sewing apparatus 1 includes, as a configuration of the conveying apparatus 5, a needle driving number detecting unit for detecting the number of needle driving in the sewing machine 4 ( 53) is installed. The needle drive count detection unit 53 is realized by, for example, an encoder for detecting the rotation angle of the drive shaft for driving the needle 102 included in the sewing machine 4, and obtains the needle drive count from this rotation angle. In addition, the input unit 14 can correspondingly input the number of needle driving and the tension to be applied to the belt-shaped object 3 when sewing. In the control operation of controlling the tension by the number of needle driving, the control unit 15 selects the sewing machine 4 based on the tension detected by the load sensor 12 and the number of needle driving detected by the needle driving number detecting unit 53. ), The corresponding tension is applied to the belt-shaped object 3, the sewing machine motor is controlled, and the tension is controlled by the number of needle driving times of the sewing machine 4 during the operation of the set needle driving number.

When dividing the cloth 2 into a plurality of parts and setting a plurality of processes, the number of needle driving and the tension to be applied to the strip 3 at the time of sewing are correspondingly set for each process, and the storage unit 33 ), And the tension is controlled so as to impart a corresponding tension to the strip 3 while the sewing machine 4 operates the set number of times of needle driving for each step. As described above, when the control unit 15 performs the control operation of controlling the tension by the number of needle driving, the sewing device 1 controls the tension by the number of needle driving, and the strips 3 are sewn on the cloth 2. do.

In addition, in order to enable the control operation of manually switching the tension, the display operation unit 50 is provided with a process switching button 51. This process switching button 51 constitutes a part of the input part 14, and can input the instruction information which switches a process to the next process by pressure-operating by an operator. When this command information is input, the control unit 15 forcibly terminates the process at that time and moves to the next process. The operator can switch the process manually using this process switching button 51. This process switching button 51 is used when only the tension of each process is set, and the operator visually confirms and judges the process switching time from the position of the cloth 2 to switch the process.

Referring again to FIG. 8, the input unit 14 is an operation key provided on the operation panel 24, which includes a process selection key 55A, a size setting key 56, a mode switching key 57, and an increase / decrease key 58. , A code switching key 59, a locking key 60, a tension free key 61, a function key 62, a start key 63, and a reset key 64. The control unit 15 executes a control operation in accordance with the operation of these operation keys.

The process selection key 55A is a key for selecting a process, and in this embodiment, up to eight processes can be set in one sewing mode. The size setting key 56 is a key used when setting the length dimension of the strip | belt-shaped object 3 in each process. The mode switching key 57 is a key used to select a sewing mode when a plurality of sewing modes are registered. The increase / decrease key 58 is a key for increasing or decreasing the set value.

The code switch key 59 is used to select and switch the control operation by the controller 15. As described above, the control unit 15 can perform a control operation for controlling the tension by the feed amount of the belt-shaped object 3, a control operation for controlling the tension by the number of needle driving, and a control operation for manually switching the tension. The operator can operate the code switching key 59 to select the control operation. The lock key 60 is a key for switching whether to validate or invalidate operations of keys other than the lock key 60 and the reset key 64.

When setting the tension of the strip | belt-shaped object 3 in each process, the tension freekey 61 sets the tension to the tension | tensile_state which does not act except the external force based on self-weight on the strip | belt-shaped object 3, It is the key used. The start key 63 is a key for starting the sewing operation. The reset key 64 is a key for returning to the beginning of the first process, that is, to the beginning of the sewing operation.

In such an input unit 14, the fabric is controlled for each control mode to control the tension by the feed amount by operating the process selection key 55A, the size setting key 56, and the increase / decrease key 58. The length dimension of the belt-shaped object 3 to be sewn in (2) and the tension to be given to the belt-shaped object 3 can be input and set correspondingly. In addition, the input unit 14 is data for a control operation for controlling the tension by the number of needle driving times by operating the process selection key 55A, the size setting key 56, and the increase / decrease key 58. The number of needle driving of the sewing machine 4 and the tension to be applied to the belt-like article 3 can be input and set correspondingly. In addition, the input unit 14 is data for a control operation of manually changing the tension by operating the process selection key 55A, the size setting key 56, and the increase / decrease key 58. In the sewing mode, a band-shaped article is used in each process. The tension to be given in (3) can be entered and set. The data of this sewing mode is stored in the storage unit 33.

By operating the code switch key 59 and the mode switch key 57, the control operation can be selected and the sewing mode can be selected. The controller 15 controls the tension set in the selected sewing mode in the selected control operation. In the sewing device 1, the strip 2 is sewn onto the cloth 2 while controlling the tension of the strip 3 in this manner.

10 is a flowchart illustrating a control operation of controlling the tension by the feed amount in the control unit 15. The control unit 15 operates the start key 63 in a state where the cloth 2 is disposed at a position at which the sewing operation starts based on the detection result by the cloth sensor 40 or the result confirmed by the operator's eyes. By this, the control operation of controlling the tension by the feed amount is started in step a0. When the start key 63 is operated, the sewing machine 4 starts the sewing operation.

The control unit 15 reads and acquires from the storage unit 33 the length dimension and tension set in the first step of the sequence in the step not completed in step a1, and proceeds to step a2 to obtain the set tension. The feeding motor 11 is instructed, and the belt-shaped material 3 is transferred to the sewing machine 4 in the state of applying the set tension.

In addition, in the next step a3, the control unit 15 determines whether the feed amount from the start of the current process is equal to or greater than the length dimension set in the process, and repeats the determination of step a3 until the feed amount becomes equal to or greater than the length dimension. And wait. The control unit 15 causes each indicator 45 to display the progress of the process during the waiting at the step a3. If it is determined in this step a3 that the conveyance amount is greater than or equal to the length dimension, the control unit 15 determines that the process has ended and proceeds to step a4. In step a4, the control unit 15 determines whether there is a next step. If there is a next process, the process returns to step a1. If there is no next process, the process proceeds to step a5 to end the control operation.

The sewing method according to the present invention can be executed by the sewing device 1 having the control unit 15. That is, the length of the belt 3 to be sewn on the fabric 2 and the tension to be applied to the belt 3 at the time of sewing are set correspondingly, and the belt 3 is transferred to the sewing machine 4. When sewing the strip 3 to the cloth 2, the amount and tension of the strip 3 is detected, and during the transfer of the strip 3 of the set length dimension, a corresponding tension is applied. In order to give 3), the strip | belt-shaped object 3 can be sewn to the cloth 2, controlling the tension | tensile_strength of the strip | belt-shaped object 3. This sewing method is applied to the cloth 2 while controlling the tension by the feed amount of the belt-shaped material 3 to the sewing machine 4, not the operating amount of the sewing machine 4, such as the number of needle driving in the sewing machine 4. The strip 3 is sewn.

As described above, according to this embodiment, the tension of the belt-like article 3 is not the amount of operation in the sewing machine, such as the number of needle driving in the sewing machine 4, the rotational speed of the drive shaft, but the sewing machine 4 of the belt-shaped article 3. When the belt 2 is sewn onto the fabric 2 while controlling the amount of feed to the cloth 2, it is not necessary to detect the operation amount of the sewing machine 4, and a mechanism for detecting the operation amount of the sewing machine 4 is provided. It is also applied to the sewing machine which does not have, and it is possible to sew a strip | belt-shaped object in the cloth 2. In addition, the problem as described above in the case of controlling the tension by the number of times the needle is driven, the belt-shaped material (3) of the length dimension to be sewn, can be sewn in a state in which the tension to be given, good quality products Can be obtained.

As described above, as the sewing device 1, the control operation for controlling the tension by the number of times the needle drive of the sewing machine 4, the control operation for controlling the tension manually, and configured to allow the operator to select the control operation Also good. In this way, a control operation for controlling the tension by the feed amount, a control operation for controlling the tension by the number of needle actuations, and a control operation for manually switching the tension can be appropriately selected by the operator and the familiarity with each control operation. It is possible to realize a belt-shaped sewing device having good usability and high convenience.

Further, if the thickness dimension of the strip 3 passing through the conveying mechanism 10 is detected, and the thickness dimension of the strip 3 changes, a warning is issued. The joint part of the strip | belt-shaped object 3 is large in thickness dimension compared with another part. If a part having a different thickness dimension such as this joint part is sewn on the fabric 2, there is a fear that the quality of the product will be reduced. By detecting a change in the thickness dimension and warning, the seam of the strip 3 is supplied to the sewing machine 4 to prevent it from being sewn onto the fabric 2, thereby preventing problems such as deterioration of product quality. have.

In addition, as described above, the plurality of sewing modes can be stored and registered in the storage unit 33, mode selection information can be inputted by operation of the mode switching key 57 of the input unit 14, and the sewing mode can be selected. Accordingly, in advance, only the sewing mode is selected by registering the sewing mode in correspondence with a plurality of sewing products, and setting the length dimension of the belt-shaped object 3 to be sewn and the tension to be applied to the belt-shaped object at the time of sewing. In this way, the fabric 2 can be sewn in a state in which a tension corresponding to the sewing product is easily applied to the change of the sewing product to be sewn, and a tension applied to the sewing product is applied.

In addition, the information about the conveyance amount is displayed by the respective display units 35 and 42. Thereby, an operator can advance sewing work efficiently, grasping the information about a conveyed quantity. In addition, the indicators 45 of the second display unit 42 indicate that the process is in progress and that the process is close to the end. Accordingly, the operator can grasp the end of the process by the indication by each indicator light 45, compare with the position of the cloth with his eyes, and easily grasp whether or not the sewing operation is proceeding satisfactorily. Product sewing can be realized. In addition, since the progress of the process and the process are close to the end, they are not displayed by numerical values or the like, but are displayed by the indicator light 45, so that the operator can easily grasp the indicator 45 without looking at it.

FIG. 11 is a flowchart showing a high mode operation in the control unit 15. In the sewing device 1, the control unit 15 is capable of a high mode operation of switching the plurality of sewing modes in order of rotation, that is, in a predetermined order. This high mode operation is a control operation that can be suitably used for sewing the belt-like object 3 to the leg-entry portion of the female shorts 6 as shown in FIG. 4. The shorts 6 for women have a configuration in which the belt-shaped material 3 is sewn to the left and right leg fitting portions, but in the left and right leg fitting portions, a sewing mode is performed in which the order of the steps is reversed. In the case of sewing such a product, the two sewing modes are automatically switched alternately so that the operator can sew the belt 3 alternately to the left and right leg insertion parts without switching the sewing mode. It is good to operate and can improve convenience.

When executing the high mode operation, the control unit 15 repeatedly executes the operation of FIG. 11 for each process, not the control operation as shown in FIG. The control unit 15 starts the high mode operation in step b0 when it is in the state that one process needs to be started, and controls to the tension set in the process in step b1, and proceeds to step b2 when the process ends and is currently being executed. It is determined whether or not it is the final process in the sewing mode. If so, the process proceeds to step b3. If it is not the final process, the process proceeds to step b6, and the control unit 15 switches to the next process and ends the high mode operation in step b7.

In step b3, the controller 15 determines whether the high mode is valid, and therefore whether or not the sewing mode is set to switch to leap. If it is valid, the process goes to step b4. If it is invalid, the process goes to step b8. In step b4, the controller 15 switches to the first process of the next sewing mode, and proceeds to step b5 to end the high mode operation. In step b8, the controller 15 switches to the first process of the same sewing mode as before, and proceeds to step b9 to end the high mode operation. By using this high mode operation, convenience can be further increased.

12 is a flowchart showing the operation of the control unit 15 when copying the sewing mode. In the sewing device 1, a plurality of sewing modes can be registered as described above. There is a similar sewing mode among each sewing mode. If a sewing mode similar to the already registered sewing mode is created and registered, the sewing mode can be copied by executing this operation. The control unit 15 performs the copy operation based on key operations such as the function keys 62 of the operator's input unit 14.

When the control unit 15 instructs the operator to copy the sewing mode by the manipulation of the input unit 14, the control unit 15 starts a copy operation in step cO, and performs a preparation operation for copying the sewing mode in step c1. In addition, in step c2, the control unit 15 sets (sets) the sewing mode of the copy source based on the operation of the input unit 14, and in step c3, sewing the copy target to be newly created based on the operation of the input unit 14. Set (set) the mode. In addition, in step c4, the control unit 15 determines whether the setting (set) of the copy source and the sewing mode of the copy target is completed, based on the operation of the input unit 14. If it is determined that the setting (set) is not completed, the control unit 15 returns to step c4 and waits until the setting is completed. If it is determined that the setting (set) is completed, the control unit 15 records the sewing mode data of the copy source as the data of the sewing mode of the copy target in step c5, and ends the copy operation in step c6. By enabling such a copy operation, the setting of the sewing mode can be facilitated.

FIG. 13 is a flowchart illustrating a method of setting the length dimension and the tension in each step by using the learning function of the control unit 15. The operation of setting the length dimension and the tension using the learning function is started at step d0 when the operator judges that it starts. In this setting operation, the operator operates the input unit 14 to start the operation of the learning function of the control unit 15 in step d1. Next, in step d2, the worker places the cloth 2 at the position of sewing start and sets it on the sewing machine 4. Next, in step d3, the sewing operation is started while manually setting the tension suitable for the portion of the cloth 2 while giving it to the belt-shaped object 3 while learning to the control unit 15. The control unit 15 executes the learning function based on the operator's key operation of the function key 62 or the like of the input unit 14. The control part 15 acquires the tension | tensile_strength provided to the strip | belt-shaped object 3 in step d3, and acquires the conveyance amount of the strip | belt-shaped object 3. As shown in FIG.

In step d4, the operator determines whether the tension 2 is a position to switch the tension from the position of the cloth 2, and if the position is to be switched, the process proceeds to step d5, and if not the position to be switched to step d6. In step d5, the operator operates the input unit 14 to instruct the process to be switched. As a result, the control unit 15 transfers the tension and the transfer amount until the switching is commanded to the length dimension of the belt-shaped object 3 to be sewn of the cloth 2 in the step before the switching and to the belt-shaped object 3 at the time of sewing. It is set as the tension to be applied and stored in the storage unit 33. And manually reset to a tension suitable for the next part of the cloth 2, or proceed to step d6 without the next part.

In step d6, the operator determines whether the sewing operation is finished, and if so, proceeds to step d7, and otherwise returns to step d4. In step d7, the operator operates the input unit 14 to command the end of the sewing operation. As a result, the control unit 15 integrates the length dimension and the tension of each process stored in the setting operation using a series of learning functions, sets them as sewing mode, and stores them in the storage unit 33. The setting operation ends in step d8. If the control unit 15 has such a learning function, the sewing mode can be set without fine manipulation of the input unit 14, and thus high convenience can be obtained.

14 is a perspective view showing a sewing apparatus 1A according to another embodiment of the present invention. The sewing apparatus 1A of FIG. 14 is similar to the sewing apparatus 1 shown in FIGS. 1-13, and attaches | subjects the same code | symbol to the corresponding part, and demonstrates only a different point. In the sewing device 1A shown in FIG. 14, the belt-shaped material 3 is transferred from the lower side of the sewing machine 4 to be sewn onto the cloth 2. In this sewing device 1A, the housing 19 of the transfer device 5 is provided below the sewing machine 4. Although not shown, the configuration supported by the housing 19, such as the transfer mechanism 10, the transfer motor 11, the load sensor 12, and the like, is the same as that shown in FIG. 6, and is provided below the sewing machine 4 It is. The operation panel 24 is disposed on the side of the sewing machine 4.

The spool 55 provided on the upstream side of the conveyance mechanism 10 in the strip-shaped object conveyance direction B is also provided below the sewing machine 4, although illustration is abbreviate | omitted. When the spool 55 is disposed below the sewing machine, the spool 55 should be rotated in a direction opposite to that of the sewing machine 4. However, the spool 55 is a motor for driving the spool 55. This arrangement can be easily realized because is used.

15 is a perspective view showing a sewing apparatus 1B according to another embodiment of the present invention. 16 is a perspective view showing a bra 70 which is another example of a sewing product. 17 is an enlarged perspective view showing a part of the under bust portion of the bra 70. The sewing apparatus 1B of FIG. 15 is similar to the sewing apparatus 1 shown in FIGS. 1-13, attaches | subjects the same code | symbol to a corresponding part, and only a different point is demonstrated. In the sewing apparatus 1B shown in FIG. 15, the sewing machine 4 is provided with the zigzag sewing sewing machine. Other configurations are the same. The bra-like belt-like material 3 is sewn and attached to the under bust of the cloth 2 in the bra 70. A zigzag sewing sewing machine is a sewing machine suitable for sewing such a sewing product.

The above-mentioned embodiment is only an illustration of this invention, It is not limited to this. For example, the sewing machine 4 may be a sewing machine other than an overlock sewing machine and a zigzag sewing sewing machine. Moreover, each structure part may also be structures other than the illustrated structure.

Various other forms may be practiced without departing from the spirit or main features of the invention. Therefore, the above-mentioned embodiment is only a mere illustration in all respects, and the scope of the present invention is shown in a claim, and is not restrained in the specification body at all. In addition, all the modifications and changes which belong to a claim are within the scope of the present invention.

The present invention does not need to detect the operation amount of the sewing machine, and can be applied to a sewing machine that does not have a mechanism for detecting the operation amount of the sewing machine. In addition, unlike the conventional control of the tension by the number of needle driving, it is not necessary to re-enter the relationship between the number of needle driving and the tension for each process.

Claims (14)

As a method of sewing the belt-shaped object on the cloth by transferring the belt-shaped object to the sewing machine controlled by a control unit having a learning function, When the worker sets the tension to be applied to the belt-shaped object suitable for the part of the cloth, and starts the sewing operation while applying the tension to the belt-shaped object, the transfer amount of the belt-shaped object and the tension applied to the belt-shaped object are acquired. When the operator instructs the process to be changed, the length of the belt to be sewn on the cloth in the process before the change and the length of the belt to be sewn to the cloth in the process before the change are measured. It is set as the tension to be applied to the shape, and the length of the strip shape to be sewn to the set fabric is matched with the tension to be applied to the strip shape at the time of sewing. When the operator instructs the end of the sewing operation, the length of the belt-shaped material to be sewn and the tension to be applied to the belt-shaped object at the time of sewing are collected and set as the sewing mode, and then stored. When the belt-shaped material is transferred to the sewing machine to sew the belt-shaped material on the fabric, the amount and tension of the belt-shaped object are detected, and the tension set to correspond to the set length dimension while transferring the band-shaped material of the length dimension set in the sewing mode. Belt sewing method characterized in that the sewing by controlling the tension by the feed amount to the sewing machine to give the belt-shaped material. The method according to claim 1, wherein the thickness dimension of the belt-like article conveyed to the sewing machine is detected, A method of sewing a band-shaped article, characterized in that a warning is issued when the thickness dimension of the band-shaped article changes. The method according to claim 1, wherein a plurality of sewing modes in which the length dimension of the belt-shaped object to be sewn and the tension to be applied to the band-shaped object at the time of sewing are correspondingly registered are registered. Select the sewing mode to use from each registered sewing mode, A belt-shaped material sewing method, characterized in that the tension is controlled by a feed amount to the sewing machine based on the length dimension and the tension of the band-shaped material set in the selected sewing mode, and the band-shaped material is sewn on the cloth. The method according to claim 2, wherein a plurality of sewing modes in which the length dimension of the belt-shaped object to be sewn and the tension to be applied to the band-shaped object at the time of sewing are correspondingly registered are registered. Select the sewing mode to use from each registered sewing mode, A belt-shaped material sewing method, characterized in that the tension is controlled by a feed amount to the sewing machine based on the length dimension and the tension of the band-shaped material set in the selected sewing mode, and the band-shaped material is sewn on the cloth. The information about the conveyance amount of a strip | belt-shaped thing is displayed, The conveyance amount from the start of sewing of a strip | belt-shaped thing as one of the information regarding the conveyance amount of this strip | belt-shaped thing is set, A method of sewing a band-shaped article, characterized in that the indicator indicates that the sewing of the band-shaped article having a set length dimension is close to the end when the band-shaped article is close to the length dimension. As a sewing device for sewing strips on a cloth, Sewing machine to sew bands on the fabric, A transfer mechanism for sandwiching the belt-like article and transferring the belt-shaped article to the sewing machine; A drive unit for driving the transfer mechanism; A tension detector for detecting the tension of the band-like article between the transfer mechanism and the sewing machine; A feed amount detector for detecting a feed amount of the strip-shaped object by the feed mechanism; An input unit for correspondingly inputting and setting the length dimension of the belt-shaped material to be sewn on the cloth and the tension to be applied to the belt-shaped material at the time of sewing; A storage unit for storing a plurality of sewing modes in which the length dimension of the belt-shaped object to be sewn and the tension to be applied to the belt-shaped object at the time of sewing are set correspondingly; On the basis of the tension detected by the tension detecting unit and the conveying amount detected by the conveying amount detecting unit, the driving unit is controlled to give the band-shaped object the tension set corresponding to the set length dimension while transferring the band-shaped object having the set length dimension. And, the control unit for controlling the tension by the feed amount to the sewing machine of the band-like, The control unit has a learning function, The learning function is started based on the operation of the input unit to acquire the feed amount of the belt-shaped object and the tension applied to the belt-shaped object, When the input unit is operated and the changeover of the process is instructed, the transfer amount of the strip and the tension to be applied to the strip until the change is instructed, and the length dimension of the strip to be sewn to the fabric in the process before the change and the sewing It is set as the tension to be given to the strip-shaped material at the time, and stored in the storage unit by matching the length dimension of the strip-shaped material to be sewn to the set fabric with the tension to be applied to the strip-shaped material at the time of sewing. When the input unit is operated to instruct the end of the sewing operation, the length of the belt-shaped object to be sewn to the fabric of each process stored in the storage unit and the tension to be applied to the belt-shaped object at the time of sewing are collected and set as the sewing mode. And storing in a storage unit. The thickness dimension detection part of Claim 6 which detects the thickness dimension of the strip | belt-shaped thing which passes through a conveyance mechanism, Further comprising a warning unit for warning, And the control unit warns a warning unit when the thickness dimension of the band-like object detected by the thickness dimension detecting unit changes. The method of claim 6, The input unit is capable of inputting mode selection information for selecting a sewing mode to use from each sewing mode stored in the storage unit, The control unit controls the tension by the feed amount of the belt-shaped object to the sewing machine based on the length dimension and the tension of the belt-shaped object set in the sewing mode selected by the mode selection information input by the input unit. Shape sewing device. The method of claim 7, wherein The input unit is capable of inputting mode selection information for selecting a sewing mode to use from each sewing mode stored in the storage unit, The control unit controls the tension by the feed amount of the belt-shaped object to the sewing machine based on the length dimension and the tension of the belt-shaped object set in the sewing mode selected by the mode selection information input by the input unit. Shape sewing device. The display device according to any one of claims 6 to 9, further comprising a display portion having an indicator light and displaying information, The control unit causes the display unit to display information on the predetermined amount of transfer, based on the amount of transfer detected by the transfer amount detection unit, on the display unit, and as a piece of information about the amount of transfer of the strip, the amount of transfer from the start of sewing of the strip. And a light indicator indicating that the sewing of the belt-shaped material having the set length dimension is close to the end when the length-shaped product is close to the length dimension. 10. The method according to any one of claims 6 to 9, further comprising a needle driving number detecting unit for detecting the number of needle driving in the sewing machine, The input unit is capable of inputting operation selection information for selecting any one of a control operation controlled by a feeding amount and a control operation controlled by the number of needle driving, and the number of needle driving and the tension to be applied to the belt-like object at the time of sewing are input. Can be entered correspondingly, When the control operation controlled by the feed amount is selected, the control unit has a corresponding tension while transferring the strip-shaped material having a set length dimension based on the tension detected by the tension detector and the feed amount detected by the feed amount detector. The tension is controlled by the tension detection unit and the number of times the needle drive is detected by the tension detector when the control unit controls the drive unit to control the tension, the tension is controlled by the feed amount to the sewing machine, and the needle drive count is selected. Based on the number of needle driving detected, the belt is characterized in that the tension is controlled by the number of needle driving of the sewing machine by controlling the drive unit to give a corresponding tension to the belt-shaped object while the sewing machine is operating the set number of needle driving. Shape sewing device. The method of claim 10, further comprising a needle driving number detecting unit for detecting the number of needle driving in the sewing machine, The input unit is capable of inputting operation selection information for selecting any one of a control operation controlled by a feeding amount and a control operation controlled by the number of needle driving, and the number of needle driving and the tension to be applied to the belt-like object at the time of sewing are input. Can be entered correspondingly, When the control operation controlled by the feed amount is selected, the control unit has a corresponding tension while transferring the strip-shaped material having a set length dimension based on the tension detected by the tension detector and the feed amount detected by the feed amount detector. The tension is controlled by the tension detection unit and the number of times the needle drive is detected by the tension detector when the control unit controls the drive unit to control the tension, the tension is controlled by the feed amount to the sewing machine, and the needle drive count is selected. Based on the number of needle driving detected, the belt is characterized in that the tension is controlled by the number of needle driving of the sewing machine by controlling the drive unit to give a corresponding tension to the belt-shaped object while the sewing machine is operating the set number of needle driving. Shape sewing device. As a method of sewing the belt-like article on the cloth by transferring the band-like article to the sewing machine, Set the length dimension of the strip shape to be sewn on the cloth and the tension to be given to the strip shape at the time of sewing. Set the number of needle driving in the sewing machine and the tension to be given to the belt-shaped object at the time of sewing, Select one of the control operation of the tension according to the conveying amount of the band-shaped object and the control operation of the needle driving number in the sewing machine, When the belt-shaped material is transferred to the sewing machine to sew the belt-shaped material on the fabric, when the control operation of the tension according to the feed amount is selected, the amount and tension of the band-shaped object are detected and the band-shaped material of the set length dimension is transported. When the tension is controlled by the feed amount to the sewing machine to give the belt a set tension corresponding to the length dimension, the sewing is controlled, and the needle driving frequency and tension in the sewing machine are selected when the tension control operation is selected by the number of needle driving. And controlling the driving unit to give the belt-shaped object a tension set corresponding to the set needle driving number during the operation of the set number of needle driving, and sewing by controlling the tension by the number of needle driving of the sewing machine. Belt shape sewing method. As a sewing device for sewing strips on a cloth, Sewing machine to sew bands on the fabric, A transfer mechanism for sandwiching the belt-like article and transferring the belt-shaped article to the sewing machine; A drive unit for driving the transfer mechanism; A tension detector for detecting the tension of the band-like article between the transfer mechanism and the sewing machine; A feed amount detector for detecting a feed amount of the strip-shaped object by the feed mechanism; A needle drive count detection unit for detecting a needle drive count on a sewing machine; The length of the belt-shaped material to be sewn on the cloth and the tension to be applied to the belt-shaped material at the time of sewing can be input correspondingly, and the number of needle driving and the tension to be applied to the belt-shaped material at the time of sewing can be input correspondingly. The input unit to be set, On the basis of the tension detected by the tension detecting unit and the conveying amount detected by the conveying amount detecting unit, the driving unit is controlled to give the band-shaped object the tension set corresponding to the set length dimension while transferring the band-shaped object having the set length dimension. , A control unit for controlling the tension to be given to the belt as a feed amount to the sewing machine of the belt Including, The input unit is capable of inputting operation selection information for selecting any one of a control operation controlled by a feed amount and a control operation controlled by the number of needle driving, When the control operation controlled by the feed amount is selected, the controller is configured to transfer the band-shaped material having the set length dimension based on the tension detected by the tension detector and the feed amount detected by the feed amount detection unit. The tension detected by the tension detection unit when the control operation to control the drive unit to control the driving unit to control the tension by the feed amount to the sewing machine, and to control the number of needle driving, to give a correspondingly set tension to the belt-like object; On the basis of the needle drive count detected by the needle drive count detection unit, while the sewing machine is operating the set needle drive count, the drive unit is controlled to give the belt-shaped object a tension set corresponding to the set needle drive count. Belt-shaped sewing, characterized in that the tension is controlled by the number of needle driving Device.

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