JP2001198369A - Binding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce operation steps in a binding machine. SOLUTION: The binding machine 10 is equipped with a supply equipment of binding fabric 4 having binding fabric loading platform 41. A reflection type optical sensor 81 is arranged on the fabric-loading platform 41 and hands of an operator are detected by the reflection type optical sensor 81 when putting binding fabric M2 on the fabric-loading platform 41. When the reflection type optical sensor 81 detects the hands of the operator, processing calculator 90 decides that the binding fabric M2 is put on the fabric-loading platform 41. The processing calculator 90 controls a cutting equipment 43 or a binding fabric transporter 42 based on the decision. The binding machine 10 is also equipped with a timer 91 and when the timer 91 counts up, the processing calculator 90 decides that the binding fabric M2 is put on the fabric-loading platform 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball stitch sewing machine for supplying a blanket onto a sewing material on a sewing machine table, and then performing a ball stitch on the blanket and the sewing material.

[0002]

2. Description of the Related Art Conventionally, there has been a ball stitch sewing machine for performing a ball stitch at a pocket opening when a pocket is manufactured in body cloth (sewn material) such as clothing.
58. The ball stitch sewing machine of this example supplies a blanket placed on a blanket placing table to a body cloth on a sewing machine table by a blanket supply device. Then, the ball cloth on the body cloth is bent substantially in an inverted T-shape by the ball cloth folding mechanism, and the ball cloth is sewn to the body cloth with two needles. Next, after the sewing is completed, the ball cloth is cut together with the body cloth by the center knife mechanism between the two stitches to form pocket holes. Next, an angle-shaped cut is formed at both ends in the longitudinal direction of the pocket hole by a corner knife mechanism. After processing the ball cloth and the body cloth with the ball-stitching sewing machine as described above, the ball cloth is passed through the pocket hole, and the ball cloth is turned back to the back side of the body cloth. As a result, only the pocket hole is visible on the front side of the body fabric, and a pocket is formed. When the body cloth is set on the sewing machine table, it is held on the sewing machine table by the holding body.

[0003] When the ball cloth is folded back to the back side of the body cloth, the ball cloth forms a bent portion at the longitudinal end of the pocket hole, and the ball cloth overlaps at this bent portion. Therefore, the bent portion becomes thick. Therefore, for example, even if ironing the ball cloth together with the body cloth in order to arrange the bent part of the ball cloth, the back of the raised portion will appear on the body cloth,
Problems such as deterioration of appearance of the body dough have occurred.

For this purpose, for example, Japanese Patent Publication No. 2-5976
As disclosed in Japanese Patent Publication No. 0, in the blanket supply device, provided with a blanket cutting mechanism that cuts second cut portions on both sides in the longitudinal direction of the first cut portion to be cut as a pocket hole, After cutting a second cutting part, which is an extension of one cutting part, in advance, the blanket cut from the second cutting part is supplied onto the body cloth.

[0005] In the ball stitch sewing machine provided with the blanket feeding device having the blanket cutting mechanism as described above, first, an operator sets a blanket on a blanket mounting table, and an operator places the blanket on a sewing machine table. The bead sewing machine is operated by setting the body cloth and then operating an operation unit such as a pedal by an operator. In brief, after the body material is set on the sewing machine table, when the operator performs the first operation on the operation unit, the presser mechanism is operated, and the presser mechanism moves onto the body material. Then, when the operator performs the second operation on the operation unit, the body material is held on the sewing machine table by the pressing mechanism. When the operator performs a third operation on the operation unit after placing the blanket on the blanket mounting table, the blanket cutting mechanism is activated, and the second blanket cutting portion of the blanket is operated by the blanket cutting mechanism. Be cut off. Next, when the operator performs a fourth operation on the operation unit, the blanket supply device is operated, and the cut blanket is supplied from the blanket mounting table onto the body cloth on the sewing machine table. Next, when the operator performs the fifth operation on the operation unit, the ball sewing is performed on the ball cloth and the body cloth.

[0006]

However, in the above-mentioned conventional example, the operator performs multiple operations on the operating section from when the ball cloth or the body cloth is placed to when the bead sewing is performed. This has been a burden on the workers, resulting in a reduction in work efficiency. An object of the present invention is to reduce the number of operations of the operation unit,
It is to reduce the burden on the worker.

[0007]

SUMMARY OF THE INVENTION Therefore, the invention according to claim 1 has a blanket placing table (41) on which a blanket is placed, and the blanket placed on the blanket placing table. Sewing machine provided with a blanket supply device (4) for supplying the blank onto the sewing machine on the sewing machine table, detecting means (for example, the reflection type optical sensor 8) )When,
A control unit (for example, the control device 100: steps S2 to S8) for controlling a predetermined driving mechanism when it is determined that the blanket is placed on the blanket placing table based on the output of the detection unit. The feature is a means for solving the above problem.

As described above, according to the first aspect of the present invention, when the detecting means detects an object to be detected, the control means determines that the blanket has been placed on the blanket placing table. Since the control means controls the predetermined drive mechanism based on the determination, the predetermined mechanism can be operated without an operator operating an operation unit such as a pedal. That is, since the predetermined drive mechanism is driven without operating the operation section to drive the predetermined drive mechanism, the number of times the operator operates the operation section is reduced, thereby reducing the burden on the operator. can do. Here, the predetermined drive mechanism is, for example, a unit that performs processing on a blanket or a sewing object.

The object to be detected is, for example, a blanket to be placed on the blanket placing table, or an operator who grasps the blanket when placing the blanket on the blanket placing table. A hand, a hand of an operator who has sent to the blanket mounting table when reloading the blanket on the blanket mounting table, or a blanket mounting device for mounting a blanket on the blanket mounting table. And the like, which is located on the blanket mounting table when the blanket is mounted on the blanket mounting table. The detection object is detected by the detection means, and the detection means outputs the fact to the control means.

[0010] The detecting means may be any means that can be appropriately selected in accordance with an object to be detected and can detect an object located on the blanket mounting table. For example, in an optical sensor such as a reflection type optical sensor or a cut-off type optical sensor, the detected object acts on an optical path projected from the optical sensor to detect the detected object. An object to be detected is detected by detecting a change in a magnetic field, and in a temperature sensor such as an infrared sensor,
An object is detected by detecting a temperature change caused by the object.

The control means basically determines that a blanket has been placed on the blanket placing table when a signal is input from the detecting means, and based on the determination processing. And outputs a control signal to the predetermined drive mechanism so as to perform processing on the blanket on the blanket mounting table or the work to be sewn on the sewing machine table. A dedicated logic circuit or a general-purpose CPU (Central processes
sing unit) and the like.
It processes the signal from the detection means and outputs a signal to the control means.

According to a second aspect of the present invention, there is provided the ball-stitch sewing machine according to the first aspect, wherein the blanket supply device includes the above-mentioned blanket placing table and the above-mentioned sewing machine table as the predetermined drive mechanism. And a transport means for transporting the ball cloth mounted on the ball cloth mounting table to a sewing object on the sewing machine table, wherein the control means is configured such that the ball cloth is the ball. The means for solving the above-mentioned problem is characterized in that, when it is determined that the sheet is placed on the cloth table, the transfer means is controlled so as to move from the sewing machine table to the ball cloth table.

As described above, according to the second aspect of the present invention, when the detecting means detects an object to be detected, the control means determines that the blanket has been placed on the blanket placing table. Since the control means controls the transport means based on the determination, the transport means can be operated without an operator operating an operation unit such as a pedal.
That is, only by placing the blanket on the blanket mounting table, the conveying means moves from the top of the sewing machine table to the blanket mounting table, so that the blanket placed on the blanket mounting table is Ready to feed on the sewing material on the table. Therefore, since the transport unit is driven without operating the operation unit to drive the transport unit, the number of times the operator operates the operation unit is reduced, thereby reducing the burden on the operator. .

According to a third aspect of the present invention, there is provided a bead sewing machine according to the first or second aspect, wherein the blanket supply device is mounted on the blanket mounting table as the predetermined drive mechanism. Cutting means for cutting both sides of the first cutting portion to be a pocket hole of the blanket, wherein the control means determines that the blanket has been placed on the blanket placing table, A feature of the present invention is to control the cutting means so as to cut the placed ball cloth.

As described above, according to the third aspect of the present invention, when the detecting means detects an object to be detected, the control means determines that the blanket is placed on the placing table, and Since the control means controls the cutting means based on the determination, the cutting means can be operated without an operator operating an operation unit such as a pedal. That is, only by placing the blanket on the blanket mounting table, both sides (second cutting portions) of the first cutting portion of the blanket can be cut by the cutting means. Therefore, since the cutting unit is driven without operating the operation unit to drive the cutting unit, the number of times the operator operates the operation unit is reduced,
Thereby, the burden on the worker can be reduced. When cutting the second cut portion of the quilt placed on the quilt mounting table, it is desirable to hold the quilt on the quilt mounting table.

According to a fourth aspect of the present invention, there is provided a bead sewing machine according to any one of the first to third aspects, wherein:
The control means detects an object to be detected on the blanket placing table by the detecting means, and then determines that the blanket is placed on the blanket placing table after the detected object is no longer detected. The feature of the present invention is to solve the above-mentioned problem.

As described above, according to the fourth aspect of the present invention, the control means determines that the blanket has been placed on the blanket placing table after the detection of the object is no longer detected. The control unit does not control a predetermined mechanism such as the transport unit or the cutting unit during a period from when the detection unit detects the object to be detected until the object is no longer detected. Therefore, the predetermined mechanism is controlled after the object to be detected is separated from the blanket mounting table. That is, for example, when the hand of the worker placing the blanket on the blanket placing table as the object to be detected, the predetermined mechanism is controlled after the worker's hand is separated from the blanket placing table. Therefore, the operation of the predetermined mechanism does not interfere with the hand of the operator.

According to a fifth aspect of the present invention, there is provided a bead sewing machine according to any one of the first to third aspects, wherein:
The control means detects the object to be detected on the blanket mounting table by the detection means, and then starts timing at a stage where the detected object is no longer detected (for example, timer 91: steps S3 to S3). Step S5), wherein the timer measures time until a preset time is set, and before the set time elapses after starting the time measurement.
The timer is provided so as to reset the time when the detection object detects the object, and the control means sets the ball cloth to the ball when the time has elapsed by the time measuring means. A feature of the present invention is to judge that it is mounted on the cloth mounting table.

As described above, according to the invention of claim 5, after the object to be detected is detected by the detecting means,
The control unit does not perform drive control until the time counting unit finishes measuring the elapse of the set time. That is, for example, when the object to be detected is an operator's hand, when the worker places a blanket on the blanket placing table, the blanket placing table is temporarily removed from the blanket placing table for some reason. The operator's hand may be released from the above, but since the control means does not perform control immediately after the operator's hand is released from the blanket placing table, the worker may release the blanket on the blanket placing table. Can be set again.

According to a sixth aspect of the present invention, there is provided a bead sewing machine according to any one of the first to fifth aspects, wherein:
A feature of the present invention is that the detecting means is provided on the blanket mounting table.

As described above, according to the sixth aspect of the present invention, since the detecting means is provided on the blanket mounting table, the object to be detected on the blanket mounting table can be accurately detected. Can be.

According to a seventh aspect of the present invention, in the ball stitch sewing machine according to the sixth aspect, the detecting means is provided below a placing surface of the blanket placing table on which the blanket is placed. The feature of the present invention is to solve the above-mentioned problem.

As described above, according to the invention of claim 7, since the detecting means is provided below the mounting surface of the blanket mounting table, the space on the blanket mounting table is increased. . Therefore, when placing the blanket on the blanket placing table, the blanket can be easily placed on the blanket placing table, and the detecting means does not hinder the placing operation. In addition, when the detection unit emits infrared rays or light rays, and detects the detection target by the infrared rays or light rays, the detection target on the blanket mounting table may not be detected.
A hole is formed from the mounting surface of the blanket mounting table toward the lower side of the mounting surface, and the detection unit is provided below the mounting surface, and the hole is formed by projecting and viewing. When the detecting means is set at the same position, the detecting means can detect an object to be detected on the blanket placing table via the hole.

According to an eighth aspect of the present invention, in the ball stitch sewing machine according to the sixth or seventh aspect, the detecting means is arranged such that a mounting position on the blanket mounting table is along a longitudinal direction of the pocket hole. A feature of the present invention is that the movable member is movable.

As described above, according to the eighth aspect of the present invention, since the mounting position of the detecting means is movable along the longitudinal direction of the pocket hole, the size of the blanket to be placed is set. Alternatively, the detection position of the detection means can be adjusted in accordance with the mounting position of the blanket and the size and position of the detected object. Therefore, the detecting means can surely detect the object to be detected.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a bead sewing machine according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, a ball-stitching sewing machine 10 according to the present embodiment supplies a ball-cloth from a ball-cloth supplying device 4 onto a body cloth (a material to be sewn) at a first position P1 on a sewing machine table 1. Then, after the staple is superimposed on the body cloth, the staple and the body cloth are transferred from the first position P1 (sewing preparation position) across the sewing position of the sewing machine to the second position P2 (sewing end position). During the transfer, the bead stitching machine 10 forms two substantially parallel seams, sew the ball cloth to the body cloth, and at the same time, forms a pocket hole between these two seams as a pocket hole. Cut one cleavage site. Next, the bead stitching machine forms an angle-shaped cut at both ends in the longitudinal direction of the pocket hole at the second position P2.

As shown in FIGS. 1 and 2, the ball stitch sewing machine 10 includes a sewing machine main body 2, a cloth transfer mechanism 3, a blanket supply device 4, a corner knife mechanism 5, and a center knife mechanism 1.
4. The control device 100 is mainly configured.

The sewing machine main body 2 is disposed substantially at the center of the sewing machine table 1, and has a well-known sewing machine having a pair of needle bars 11 (only one is shown) each having a needle 12 (only one is shown) at the lower end thereof. This needle sewing machine forms two substantially parallel seams. A center knife of a center knife mechanism 14 is provided between needles 12 on a needle plate 13 provided on the sewing machine table 1 so as to be able to protrude and retract.

The cloth transfer mechanism 3 includes a body cloth M1 and a ball cloth M2.
From the first position P1 across the needle 12 of the sewing machine main body 2 (that is, the sewing position) along the sewing machine table 1 to the second position P2.
To be forwarded to. The cloth transfer mechanism 3 includes a ball screw shaft 20 extending along a cloth transfer path in a portion of the sewing machine table 1 behind the sewing machine main body 2 in the transfer direction.
And the transport base 1 which is movable along the cloth transfer path by the rotation of the ball screw shaft 20 by meshing with the ball screw shaft 20.
5 and a servo motor 2 for rotatingly driving the ball screw shaft 20
1, an arm 16 whose base end is rotatably supported about a rotation shaft 16 b, and a cloth holder 24 provided at the distal end 16 a of the arm 16 and holding the body cloth M1 with the sewing machine table 1. And a vertical movement mechanism 23 that drives the tip 16a of the arm 16 up and down to pinch and release the body cloth M1 by the cloth holder 24.
A folding piece (not shown) for folding the ball cloth M2 is provided at the tip of the arm 16.

The center knife mechanism 14 cuts a pocket hole between two stitches when the body cloth M1 and the ball cloth M2 are transferred from the first position P1 to the second position P2. And so on. The center knife is configured to protrude and retract on the sewing machine table 1.

The corner knife mechanism 5 forms angled cuts facing each other at the second position at both ends in the longitudinal direction of the pocket hole, and forms the cuts corresponding to the length of the pocket hole in the longitudinal direction. Is formed. The corner knife mechanism 5 includes a pair of corner knifes 33 a and 33 b having an angled blade shape, a knife driving cylinder 35 for causing the corner knifes 33 a and 33 b to protrude and retract on the sewing machine table 1, and a corner knife 33.
and a scalpel spacing adjusting cylinder 36 for adjusting the spacing between the cloth transfer directions a and 33b. The distance between the corner knives 33a and 33b can be freely adjusted by the expansion and contraction drive of the knife interval adjusting cylinder 36. After the adjustment of the distance, the corner knives 33a and 33b are simultaneously moved on the sewing machine table 1 by the expansion and contraction drive of the knife drive cylinder 35. It is configured to protrude.

As shown in FIG. 2, the blanket supply device 4 comprises a blanket placing table 41, a blanket transporting device 42 (transporting means), a cutting device 43 (cutting means), and the like. The blanket M2 is supplied from the blanket mounting table 41 on which the blanket M2 is once set to the first position P1 where the body fabric M1 is set on the sewing machine table 1. Then, by supplying the ball cloth M2 at a stage preceding the sewing processing of the ball-edge sewing, the ball cloth M2 is supplied.
It is possible to continuously perform from the supply of the material to the sewing of the ball stitch.

The blanket conveying device 42 is, for example, an air suction device.
Alternatively, by inserting and removing a large number of needle tips from the blanket M2,
A binder 44 serving as a holding portion capable of holding / opening the binder 2, an elevating actuator 45 serving as elevating means for elevating the binder 44, a support frame 46 supporting the elevating actuator 45, and A rotation actuator 47 or the like serving as a rotation unit for rotating is provided.
The binder 44 has a template 44a at its tip,
At the first position P1, a folding piece (not shown) is operated, and the blanket M2 is folded along the template 44a. Furthermore, the template 44a also has a role of guiding the blanket M2 in a folded state when the body cloth M1 and the blanket M2 are sent in the direction of the second position P2 for the sewing process of the bead sewing. . Accordingly, after supplying the ball cloth M2 to the first position P1, the binder 44 performs the body cloth M by performing the bead sewing.
1 and the blanket M2 are sent to the second position P2, and the blanket M2 is
Needs to stay at the first position P1 until the comes out of the binder 44.

The cutting device 43 cuts second cutting portions at both ends in the longitudinal direction of the first cutting portion to be cut as pocket holes in the blanket M2 placed on the blanket placing table 41. A cutter mechanism 49 which is a cutting device body for cutting a second cutting portion which is an extension of the first cutting portion.
And a blanket presser 50 that presses the blanket M2 onto the blanket mounting table 2 when the cutter mechanism 49 cuts.
The cutting device 43 can supply the ball cloth M2 onto the body cloth M1 after cutting the second cutting portion in advance.

The blanket holding device 50 includes a holding head 51 for holding the blanket M2 on the blanket mounting table 41, and a holding head 51.
And a press-up / down actuator 52 for lowering or moving up from the staple placing table 41. The presser raising / lowering actuator 52 is fixed to the support frame 46 of the staple carrier 42 via the mounting base 53, and the pivoting actuator 47 of the staple carrier 42 operates to pivot the fulcrum 32 with the binder 44. Rotate. The holding head 51 and the binder 44 are provided separately. The mounting direction of the blanket presser device 50 is such that the binder 44 is located at a position facing the first position P1 so that the blanket transport device 42 presses the blanket M2 onto the body fabric M1.
The pressing head 51 is located at a position facing the staple mounting table 41 so that the staple pressing device 50 presses the staple M2 on the staple mounting table 41. That is, the inclination of the blanket mounting table 41 with respect to the horizontal plane and the binder 44 of the blanket transporting device 42 in the direction in which the holding head 51 of the blanket holding device 50 moves.
Is made to have the same inclination with respect to the moving direction. A holding member 51b having both a non-slip function and a cushioning function is provided on a surface for holding the blanket M2.
And a groove 51a into which the scalpels 61 and 62 of the cutter mechanism 49 are inserted.

As shown in FIG. 3, the cutter mechanism 49 is provided below the mounting surface 41d of the blanket mounting table 41, and cuts the second blanket M2 on the mounting surface 41d of the blanket mounting table 41. It cuts the site. The cutter mechanism 49 includes scalpels 61 and 62, scalpel holding bases 63 and 64, bell cranks 65 and 65, and actuators 66 and 6 such as air cylinders.
7, rail shaft 68, support frame 6 supporting rail shaft 68
9, 70, a stopper 71, and a switching actuator 72 such as an air cylinder for switching a cutting position. Among these, the stopper 71 and the switching actuator 72 constitute a cutting position changing means for switching the cutting start position of the second cutting portion by the cutter mechanism 49 in the longitudinal direction of the first cutting portion.

The scalpels 61 and 62 are provided with scalpel holding bases 63 and
It is slidably held up and down along 64 slide grooves 63a and 64a. The scalpels 61 and 62 are provided with first blade portions 61a and 62a provided at acute ends for piercing the blanket M2, and a second blade for cutting the second cut portion of the blanket M2 while sliding horizontally. Parts 61b, 62b,
Stopper part 61 that limits the rise of scalpels 61 and 62
c, 62c and connecting pins 61d, 62d connected to the bell cranks 65, 65. Female holding base 6
The rails 3 and 64 are held on the rail shaft 68 so as to be slidable along the rail shaft 68 in the lateral direction.

The actuators 66, 67 have their plungers 66a, 67a fixed to one ends of the bell cranks 65, 65 so as to be rotatable about fulcrums 73, 73, so that the right and left through the bell cranks 65, 65 are provided. Are held by the female holding bases 63 and 64. Bell crank 65,
Numeral 65 is supported by the female holding bases 63 and 64 so as to be rotatable about fulcrums 74 and 74. One ends of the bell cranks 65, 65 are connected to plungers 66a, 67a of the actuators 66, 67, and the other ends are elongated holes 6.
5a and 65a are formed. Connecting pins 61d, 62d are slidably connected to the long holes 65a, 65a.

The stopper 71 extends along the rail shaft 68 and is provided between the female holding bases 63 and 64. Plungers 66a, 6 of actuators 66, 67
With the 7a retracted, the female holding bases 63, 64
Abuts against the stopper 71 to regulate the moving range of the scalpels 61 and 62. The stopper 71 is connected to a plunger 72a of the switching actuator 72 via an interposition member 75, and its arrangement is variably arranged along the rail shaft 68. Switching actuator 72
Is mounted on the staple mounting table 41 via the mounting base 76. The switching actuator 72 is composed of an air cylinder or the like, and is capable of performing only two-stage operation of pushing or pulling back the plunger 72a by a predetermined stroke.
It can be configured inexpensively and compactly. In other words, the cutting start position is changed by operating the switching actuator 72 to cope with a change in the size of the blanket M2 or a change in the set position of the blanket on the blanket mounting table 41. . As a means for changing the cutting start position of the second cutting portion, the position of the stopper 71 for limiting the moving range of the scalpels 61 and 62 is changed.

As shown in FIG. 4,
The place where the scalpels 61 and 62 pass (the blanket M2
(Corresponding to the first cutting portion and the second cutting portion) are provided with through grooves 41a. Further, suction holes 41b for air suction are provided around the through groove 41a. Air mechanisms 78, 78 (see FIG. 2: not shown in FIGS. 1, 3 and 4) are connected to the suction holes 41b so that the arrangement of the blanket M2 is maintained so as not to be displaced by the air suction. Has become.

A reflection type optical sensor 81 serving as a detecting means for detecting an object to be detected on the mounting surface 41d of the blanket mounting table 41 is provided on the blanket mounting table 41. The reflection type optical sensor 81 is located near the ball cloth to be placed. That is, the hole 41c having a longitudinal direction in the direction along the through groove 41a is provided at a position on the mounting surface of the blanket mounting table 41 away from the through groove 41a. The reflection-type optical sensor 81 is provided below the mounting surface 41d of the cloth mounting table 41 (that is, provided on the back side of the mounting surface 41d of the ball-cloth mounting table 41).
The reflection-type optical sensor 81 is arranged so that the detection unit 81a of the image sensor is projected and located at the same position as the hole 41c. That is,
When the largest ballet among the blankets is placed on the blanket placing table 41, the hole 4 is positioned so that the blanket does not block the hole 41c.
1 c is provided, and it is desirable that a hole 41 c is provided in the vicinity of the peripheral portion of the staple placing table 41. And
The detection unit 81a is configured to detect an object to be detected on the staple placement table 41 through the hole 41c. As described above, since the reflection type optical sensor 81 is provided on the blanket placing table 41, the reflection type optical sensor 81 can accurately detect an object to be detected on the blanket placing table 41. Therefore, an inexpensive reflection-type optical sensor having low detection sensitivity can be used.
Further, the reflection type optical sensor 81 is provided below the mounting surface of the staple mounting table 41, and detects an object to be detected on the staple mounting table 41 through the hole 41c. Table 4
The space above 1 is widened.

Further, the reflection type optical sensor 81 is provided with a through hole 81b having a longitudinal direction in a direction along the through groove 41a, and a stepped screw 82 is inserted through the through hole 81b to mount the ball cloth. It is screwed to the mounting table 41. Then, by loosening the step screw 82, the reflection type optical sensor 81 is
The reflection type optical sensor 81 is fixed to the blanket mounting table 41 by tightening the step screw 82. The detection unit 81a is also configured to move along the hole 41c with the movement of the reflection type optical sensor 81. Thus, the reflection type optical sensor 81 is provided with the through groove 41a.
And can be fixed to the blanket placing table 41 by the stepped screw 82, so that the size of the blanket to be placed, the placing position of the blanket, and the The detection position can be adjusted according to the size and position of the detection object. Thus, the detection target can be reliably detected.

A reflection type optical sensor 81 is provided on the upstream side in the direction in which the blanket M2 is moved onto the blanket placing table 41 when the blanket M2 is placed on the blanket placing table 41. That is, the hole 41c is provided on the upstream side in the direction in which the staple M2 is moved onto the staple mounting table 41. For example, if the worker is
Is mounted on the staple mounting table 41, the reflection type optical sensor 81
The object to be detected by is the hand of the worker and the blanket M2. In this case, as shown in FIG. 1, the worker works on the front of the bead sewing machine 10 (in FIG. 1, on the right side of the bead sewing machine 10). Assuming that the work position of this worker is P0, the position where the reflection type optical sensor 81 is provided is on the work position P0 side of the blanket mounting table 41. Then, the worker places the blanket M2 on the blanket placing table 41 from the working position P0 in the direction of arrow A as shown in FIG. As described above, since the reflection type optical sensor 81 is provided on the upstream of the blanket mounting table 41 (on the working position P0 side) of the blanket mounting table 41, the blanket M2 is mounted on the blanket mounting table 41. At the time of placement, an object to be detected such as a worker's hand can be reliably detected. Note that the reflection type optical sensor 81 outputs an On signal to a control device 100 described later when an object to be detected is detected, and outputs an Off signal to the control device 100 when no object to be detected is detected.

The bead sewing machine 10 configured as described above includes a control device 100 (control means) as shown in FIG. As shown in FIGS. 1 and 5, the control device 100 of the bead sewing machine 10 includes a processing operation unit 90,
And a timer 91. The processing operation unit 90 includes a CP
U (Central Processing Uni)
t) and RAM (Random Access Mem)
ory) and ROM (Read Only Memory)
y), the timer 91 and the reflection type optical sensor 8
1 and the output signal of the operation pedal 80 and a preset program, the sewing machine main body 2, the cloth transfer mechanism 3, the blanket feeding device 4, the corner knife mechanism 5, and the center knife mechanism 1
4 is driven and controlled.

The CPU inputs signals from the reflection type optical sensor 81 and the operation pedal 80 according to a control program stored in the ROM using a predetermined area of the RAM as a work area, and executes various mechanisms (the sewing machine main body 2, the cloth transfer mechanism). 3, a blanket supply device 4, a corner knife mechanism 5, a center knife mechanism 14, a blanket transport device 42, a cutting device 43, a cutter mechanism 49, a blanket presser device 50, an air mechanism 78) and a process for controlling the timer 91. Or calculate. Then, based on the arithmetic processing of the CPU, the processing arithmetic section 90 controls the driving of various mechanisms.

The ROM stores various mechanisms and a control program for controlling the timer 91 based on input signals from the timer 91, the reflection type optical sensor 81 and the operation pedal 80. More specifically, the ROM M2 stores the blanket M2 in the ROM based on the input signal of the reflection type optical sensor 81.
A program (judgment process) for judging whether or not the device is mounted on the storage device 1 and a program (drive control process) for driving and controlling various mechanisms based on the judgment process are stored.
The determination process controls the timer 91 (for example, starting time measurement,
It includes a program (timekeeping process) for performing timekeeping termination and timekeeping.

Next, the control device 10 of the ball stitch sewing machine 10
2, FIG. 6, FIG. 6, FIG.
This will be described with reference to FIGS. First, as shown in FIG. 2, the binder 44 of the blanket conveying device 42 is moved to the first position P1.
, And is in a state in which bead sewing in the previous cycle is being performed. In this state, the worker places the blanket M2 used in this cycle on the blanket placing table 41 from the work position P0 side. At this time, since the hand of the worker or the blanket M2 passes over the hole 41c of the blanket placing table 41, the reflection type optical sensor 81 detects the hand of the worker. Then, the reflection type optical sensor 81 becomes On, and the reflection type optical sensor 81 becomes O
The n signal is output to the processing operation unit 90 (step S1; Y
es). Based on the On signal, the processing operation section 90 outputs a drive signal to the air mechanism 78, and the air mechanism 78 operates. Thereby, air is sucked from the suction hole 41b,
The arrangement of the blanket M2 does not shift. Note that the suction force of the air is such that the arrangement of the blanket M2 does not naturally shift, and that the operator can reset the blanket M2.

Subsequently, the worker puts the blanket M2 on the blanket placing table 4
When the setting of the blanket M2 on the blanket placing table 41 is completed so that the hole 41c is not closed by the blanket M2, the worker's hand is separated from the blanket placing table 41. Then, the reflection-type optical sensor 81 stops detecting the worker's hand, and the reflection-type optical sensor 81 is turned off.
The reflection type optical sensor 81 outputs an Off signal to the processing operation unit 90 (Step S2; Yes).

Next, when the processing operation unit 90 inputs the Off signal of the reflection type optical sensor 81, the processing operation unit 90 outputs a clock start signal to the timer 91. Then, the timer 91 starts counting time based on the counting start signal (step S3).

Here, a predetermined time has elapsed since the timer 91 started counting, and the counting ends (counting up).
In the meantime, for example, when the worker again puts his hand on the blanket placing table 41 in order to correct the placing position and setting posture of the blanket M2, the reflection type optical sensor 81 detects the worker's hand. I do.
When the reflection type optical sensor 81 detects the hand of the worker, the reflection type optical sensor 81 is turned on and the reflection type optical sensor 81 is turned on.
The signal is output to the processing operation unit 90 (step S4; N
o). When the processing operation unit 90 inputs the On signal of the reflection type optical sensor 81, the processing operation unit 90 outputs a timer stop signal and a timer reset signal to the timer 91. Then, the timer 91 stops the timing and is prepared to start the timing again from the beginning (reset of the timer 91). Then, the blanket M2 is set on the blanket mounting table 41 again, and the worker's hand is separated from the blanket mounting table 41. As a result, the reflection type optical sensor 81 turns OFF, and the reflection type optical sensor 81 processes the OFF signal.
(Step S2; Yes), the processing operation unit 90 outputs a timing start signal to the timer 91 again, and
1 starts timing again (step S3).

After a predetermined time has passed, the timer 91
Is completed, the timer 91 outputs a clock end signal to the processing operation unit 90. Next, when the processing calculation unit 90 receives the time measurement end signal, the processing calculation unit 90 determines that the blanket M2 has been placed (set) on the blanket placing table 41 (step S5; Yes). Note that the above step S
Steps S2 to S5 constitute a judgment process, of which steps S3 to S5 constitute a time measurement process. After the blanket M2 is placed on the blanket placement table 41, the processing operation unit 90 outputs a drive control signal to the blanket supply device 4 based on the determination of the placement of the blanket M2. The cutting device 43 and the staple conveying device 42 of the staple feeding device 4 are driven based on the drive control signal.

That is, the presser lifting actuator 52 operates to move the presser head 51 down onto the blanket mounting table 41 to press the blanket M2 (step S6). Meanwhile, the actuator 72 operates to adjust the cutting start position of the second cutting site. Subsequently, the actuator 6 of the cutter mechanism 49
6 and 67 operate to push out both plungers 66a and 67a (step S7).

When the plungers 66a, 67a start being pushed out, first, the bell cranks 65, 65 are rotated to push up the scalpels 61, 62. Due to this pushing up, the first blade portions 61a and 62a pierce through the blanket M2 and hold down the holding head 5.
One groove 51a enters. Further, the plunger 66a,
When the 67 a is pushed out, the knife holding bases 63 and 64 slide outward along the rail shaft 68 as the knifes 61 and 62 are pushed up. Plungers 66a, 67a
Since the pushing speeds are substantially the same, first, the one knife holding base 63 comes into contact with the support frame 69, and the movement of the one knife 61 stops. Further, by pushing out the plunger 66a, the actuators 66, 67
It is moved in nine directions. By pushing out the plungers 66a and 67a, the other female holding base 64 is moved to the supporting frame 69.
And the movement of the other knife 62 stops. By these movements, the second cutting portion of the ball cloth M2 is cut from the inside to the outside.

Subsequently, the plungers 66a, 67a
Is retracted, the scalpels 61 and 62 are retracted below the mounting surface of the blanket mounting table 41, and the scalpel holding base 63 and
64 is returned to a position where it contacts the stopper 71. During the operation up to this point, the body cloth M1 and the ball cloth M2 have been moved from the first position P1 to the second position P2 even during the ball stitching of the previous cycle, and the body cloth M1 and the ball cloth M2 have been moved. Are completely removed from the binder 44. The lifting actuator 45 and the rotary actuator 4 of the
7, the binder 44 is raised, and then rotated to a position opposing the blanket mounting table 41, and the binder 44 waits on the blanket M2 (step S8).

On the other hand, while the blanket supply device 4 is operating, the worker confirms that the sewing process of the blanket M2 in the previous cycle has been completed, and the worker places the body fabric M1 in the first position P1. (Step S9), and when the operation pedal 80 is operated for the first time, an On signal is output to the processing operation unit 90 (Step S10; Yes), and the processing operation unit 90
A drive control signal is output to the cloth transfer mechanism 3 based on the signal.
Then, the servomotor 21 operates to move the cloth holder 24 of the cloth transfer mechanism 3 to the first position P1 (step S1).
11). Next, the up-and-down movement mechanism 23 operates to lower the cloth holder 24 to hold the body material M1 on the sewing machine table 1 (step S12).

When the operation pedal 80 is operated for the second time, an On signal is output to the processing operation section 90 (step S13; Yes), and the processing operation section 90 sends a drive control signal to the blanket supply device 4 based on the On signal. Is output. Then, the blanket transfer device 42 of the blanket supply device 4 operates to lower the binder 44 to hold the blanket M2 on the blanket mounting table 41 (FIG. 8). Next, by the operation of the lifting actuator 45 and the rotation actuator 47, the binder 44 holding the ball cloth M2 is raised, and then the binder 44 is rotated to the first position P1, and then the binder 44 is lowered. Then, the ball cloth is supplied onto the body cloth M1 (step S1).
4). When the binder 44 descends to the blanket mounting table 41 and the binder 44 holds the blanket M2, the air mechanism 78 is activated.
Is stopped, and the air suction of the blanket M2 is released.

When the binder 44 descends to the first position P1 and the blanket M2 is set, the folding piece (not shown) is automatically operated to fold the blanket M2 along the template 44a of the binder 44. . Next, when the third pedal operation is performed on the operation pedal 80, an On signal is output to the processing operation unit 90 (Step S15; Yes), and the processing operation unit 90 turns On.
A drive control signal is output to the sewing machine main body 2, the cloth transfer mechanism 3, the center knife mechanism 14, and the corner knife mechanism 5 based on the signal, and the sewing of the ball stitch starts based on the drive signal (step S16). When the sewing starts, the cloth transfer mechanism 3 transfers the body cloth M1 with the overlap of the ball cloth M2 from the first position P1 to the second position P2 by the operation of the servo motor 21, and the sewing machine body 2 moves the cloth M1 to the body cloth M1. M2 is sewn to form two parallel seams. At this time, the center knife mechanism 14 is operated, and the knife of the center knife mechanism 14 projects on the sewing machine table 1 at a predetermined timing, and a pocket as a first cutting portion is provided between the two substantially parallel stitches. Cut the hole. When the pocket hole having a desired length is cut, the knife of the center knife mechanism 14 is pulled in from the sewing machine table 1. Next, the body cloth M1 and the ball cloth M2 are moved to the second position P2.
Is transferred, the knife driving cylinder 35 and the knife interval adjusting cylinder 36 of the corner knife mechanism 5 operate,
Angle cuts are formed on both sides in the longitudinal direction of the pocket holes by the corner knives 33a and 33b.

Subsequently, when performing the ball sewing in the next cycle, the ball cloth to be used in the next cycle is placed on the ball cloth mounting table 41 during or after the ball sewing is completed. By repeatedly performing the above operation, it is possible to continuously perform the bead sewing.

According to the above embodiment, when the reflection type optical sensor 81 detects the worker's hand, the reflection type optical sensor 81 outputs an On signal in step S1, and then, in step S2, the reflection type optical sensor 81 outputs an On signal. Outputs an Off signal, and based on the Off signal, the processing operation unit 90 starts time counting of the timer 91 in step S3, and then, when the timer 91 counts up (step S5; Yes), the processing operation unit 90 outputs a ball. It is determined that the cloth M2 has been set on the ball pad mounting table 41. Then, based on the determination, the processing operation unit 90 sets the cutting device 4
The drive of the third and the blanket conveying device 42 is controlled. Therefore, the cutting device 4 can be operated without the operator operating the operation pedal or the like.
3 and the blanket conveying device 42 can be operated. That is, the operator can cut the second cut portion of the blanket M2 by the cutting device 43 just by placing the blanket M2 on the blanket mounting table 41, and supply the blanket M2 to the body fabric M1. Ready to be. Therefore, the number of times the operator operates the operation pedal is reduced, and the burden on the operator can be reduced. Moreover, the operation of holding the blanket M2 on the blanket mounting table 41 and cutting the second cut portion of the blanket M2, and the operation of the binder 4
Preparation for moving the sewing machine 4 from the top of the sewing machine table 1 onto the blanket placing table 41 to supply the blanket M2 is performed during the bead sewing on the blanket and the body fabric in the previous cycle. Therefore, the overall working time is reduced.

Further, since the timer 91 is configured to measure the time, the period from when the reflection type optical sensor 81 detects an object to be detected such as an operator's hand to when the timer 91 counts up. In addition, the processing operation section 90 does not output a drive signal to the cutting device 43 or the staple conveying device 42 of the staple feeding device 4. Therefore, before the timer 91 counts up, the worker can set the blanket once set on the blanket mounting table 41 again.

Next, a bead stitch sewing machine according to a second embodiment will be described. This bead sewing machine is shown in FIGS.
The configuration is almost the same as that of the ball stitch sewing machine 10 shown in FIG. That is, the bead sewing machine does not include the cutting device 43 that cuts the second cutting portion in advance when supplying the blanket M2, or the cutting device 43 does not operate. Furthermore,
The bead stitching machine is configured such that the timer 91 is not provided or the time counted by the timer 91 is zero.

The operation of the bead stitch sewing machine according to the second embodiment will be described with reference to FIGS. As in the ball stitch sewing machine 10 according to the first embodiment, first, as shown in FIG. 2, the binder 44 of the blanket conveying device 42 is located opposite to the first position P1, and the ball in the previous cycle is used. The operator places the blanket M2 used in this cycle on the blanket placing table 41 in a state where the edge sewing is being performed. At this time, since the hand of the worker or the blanket M2 passes over the hole 41c of the blanket placing table 41, the reflection type optical sensor 81 detects the hand of the worker. Then, the reflection type optical sensor 81 is turned on, and the reflection type optical sensor 81 outputs an On signal to the processing operation unit 90 (Step S20; Yes). Based on the On signal, the processing operation section 90 outputs a drive signal to the air mechanism 78, and the air mechanism 78 operates. Thereby, air is sucked from the suction holes 41b, and the arrangement of the blanket M2 does not shift.

Then, the worker puts the blanket M2 on the blanket placing table 4
When the setting of the blanket M2 on the blanket placing table 41 is completed so that the hole 41c is not closed by the blanket M2, the worker's hand is separated from the blanket placing table 41. Then, the reflective optical sensor 81 stops detecting the worker's hand, the reflective optical sensor 81 is turned off, and the reflective optical sensor 81 outputs an Off signal to the processing operation unit 90 (step S21; Yes).

Next, when the processing operation section 90 inputs the Off signal of the reflection type optical sensor 81, the processing operation section 90 determines that the blanket M2 has been placed (set) on the blanket placing table 41 (step S21). Yes). After the blanket M2 is placed on the blanket mounting table 41, the processing operation unit 90 sets the blanket M
A drive control signal is output to the staple supply device 4 based on the determination of the placement of No. 2. Before the processing operation section 90 outputs the drive control signal to the staple supply device 4, the processing operation section 90 confirms that the blanket and the body cloth of the previous cycle escaped from the first position P 1. And then (Step S2
2) Output a drive control signal to the blanket supply device 4. For example, the processing operation unit 90 monitors the state of the transfer of the blanket and the body cloth in the cloth transfer mechanism 3, and confirms that the blanket and the body cloth of the previous cycle have come out of the first position P1. In addition, the vicinity of the first position P1 and the binder 4
4, a sensor or the like is provided to detect that the blanket and the body fabric of the previous cycle have escaped from the first position P1 and that the blanket and the body fabric of the previous cycle are not present at the first position P1, and based on that, The processing operation unit 90 may confirm that the blanket and the body cloth of the previous cycle have come out of the first position P1.

When the blanket supply device 4 inputs a drive control signal from the processing operation section 90, the lifting actuator 45 and the rotary actuator 47 of the blanket transfer device 42 operate, and
After raising the binder 44, it is rotated to a position facing the blanket mounting table 41, and the binder 44 waits on the blanket M2 (step S23).

While the blanket supply device 4 is operating, the worker confirms that the sewing process of the blanket M2 in the previous cycle has been completed, and the worker places the body fabric M1 in the first position P1. (Step S9), and when the operation pedal 80 is operated for the first time, an On signal is output to the processing operation unit 90 (Step S10; Yes), and the processing operation unit 90
A drive control signal is output to the cloth transfer mechanism 3 based on the signal.

Thereafter, as shown in FIG. 7, the same operation as that of the bead sewing machine 10 according to the first embodiment is performed, so that the detailed description thereof is omitted.

According to the second embodiment, when the reflection type optical sensor 81 detects the hand of the worker, the process proceeds to step S2.
0, the reflection type optical sensor 81 outputs an On signal, and then, in step S21, the reflection type optical sensor 81
The ff signal is output, and based on the ff signal, the processing operation unit 90 determines that the blanket M2 has been set on the blanket mounting table 41.
Then, after the blanket M2 is placed on the blanket placing table 41,
Based on the determination, the processing operation unit 90 controls the driving of the blanket transport device 42 of the blanket supply device 4. Therefore, even if the operator does not operate the operation pedal or the like, the staple conveying device 42
Can be activated. That is, just by the worker placing the blanket M2 on the blanket mounting table 41, the blanket M2 is placed on the body fabric M.
1 ready to feed. Therefore, the number of times the operator operates the operation pedal is reduced, and the burden on the operator can be reduced.

Further, after the processing operation unit 90 confirms that the blanket and the body fabric of the previous cycle have come out of the first position P1, the binder 44 moves from the sewing machine table 1 to the blanket placing table 41. It has become. That is, since the preparation in which the binder 44 is moved in the shape of the sewing machine table 1 to supply the blanket M2 is performed while performing the bead sewing on the blanket and the body fabric in the previous cycle, the overall Working time is reduced.

It is needless to say that specific detailed structures and the like can be appropriately changed in the above-described embodiment, and the present invention is not limited to the above-described embodiment. For example, the control device provided in the bead sewing machine is C
Although it has an arithmetic processing unit having a PU, a RAM, and a ROM, it may be a control circuit having a dedicated logic circuit. In addition, although the reflection type optical sensor 81 is used to detect an object to be detected on the staple mounting table 41, other optical sensors, temperature sensors, and magnetic field sensors may be used. In addition, although the detected object detected by the reflection type optical sensor 81 is described as a hand of an operator, for example, a dedicated device for placing a blanket on the blanket placing table 41 is provided, and the dedicated device is provided. It may be configured to detect the device.

Further, as a device which is determined to be mounted on the staple mounting table 41 and is driven and controlled by the processing operation unit 90 based on the judgment, the cutting device 43 (the staple pressing device 50 and the cutter mechanism 49) and the ball are used. Although the cloth transport device 42 is used, other devices and mechanisms may be drive-controlled. For example, when it is determined that the blanket M2 has been placed on the blanket placing table 41 while the blanket and the body fabric of the previous cycle have come out of the first position P1, the processing calculation unit 90 sets the fabric transfer mechanism 3
May be controlled to move the cloth holder 24 from the second position P2 to the first position P1, so that the cloth holder 24 is ready to hold the body cloth.

In the first embodiment, when the second cutting portion of the blanket M2 is cut by the cutter mechanism 49, the blanket holding device 50 places the blanket M2 on the blanket placing table 41. However, the configuration may be such that the blanket transport device 42 holds the blanket M2 on the blanket mounting table 41. In this case, a groove is formed at the tip of the binder 44 so that the scalpels 61 and 62 of the cutter mechanism 49 are inserted into the groove. At this time, the detection object such as the hand of the worker is detected by the reflection type optical sensor 81, and when the processing operation unit 90 is driven by the staple conveying device 42 based on the detection, the blanket and the body of the previous cycle are The fabric is in the first position P
1 after confirming that it has been completely removed from
Moves from the first position P <b> 1 onto the blanket placing table 41. In addition, for example, the processing operation unit 90 monitors the state of the transfer of the blanket and the body cloth in the cloth transfer mechanism 3 and confirms that the blanket and the body cloth of the previous cycle have come out of the first position P1. I do.

[0073]

As described above, according to the bead sewing machine according to the first aspect of the present invention, when the detecting means detects an object to be detected, the controlling means sets the blanket on the mounting table. Since the control means controls the predetermined drive mechanism based on the determination, the predetermined mechanism can be operated without the operator operating the operation unit such as the pedal. Therefore, the number of times the operator operates the operation unit is reduced, and thus the burden on the operator can be reduced.

According to the bead sewing machine according to the second aspect of the present invention, when the detecting means detects an object to be detected, the control means judges that the blanket has been placed on the blanket placing table, Since the control means controls the transport means based on the determination, the transport means can be moved onto the blanket mounting table without an operator operating an operation unit such as a pedal. Therefore, the number of times the operator operates the operation unit is reduced, and thus the burden on the operator can be reduced.

According to the third aspect of the present invention, when the detecting means detects an object to be detected, the control means determines that the blanket has been placed on the placing table and makes the determination. The control means controls the cutting means on the basis of the above, so that the operator can cut the second cut portion of the ball cloth without operating an operation unit such as a pedal. Therefore, the number of times the operator operates the operation unit is reduced, and thus the burden on the operator can be reduced.

According to the ball stitch sewing machine according to the fourth aspect of the present invention, the control means determines that the blanket has been placed on the blanket placing table after the object to be detected is no longer detected.
For example, when the object to be detected is the hand of an operator who places a blanket on the blanket mounting table, a predetermined mechanism is controlled after the worker's hand leaves the blanket mounting table. Thus, the operation of the predetermined mechanism does not interfere with the operator's hand.
In addition, the same effects as those of the invention described in any one of claims 1 to 3 can be obtained.

According to the bead sewing machine according to the fifth aspect of the present invention, the control means is provided between the time when the detecting means detects the object to be detected and the time measuring means finishes measuring the elapse of the set time. The drive control is not performed.
Thus, for example, when the object to be detected is a worker's hand, when the worker places a blanket on the blanket placing table, the worker temporarily moves the blanket placing table from the blanket placing table. Is released, the control means does not perform drive control immediately after the worker's hand is released, so that the worker can set the blanket on the blanket mounting table again. In addition, the same effects as those of the invention described in any one of claims 1 to 3 can be obtained.

According to the ball stitch sewing machine according to the sixth aspect of the present invention, since the detecting means is provided on the blanket placing table, an object to be detected on the blanket placing table can be accurately detected. . Therefore, an inexpensive detection means having low detection sensitivity can be used, and the cost of the ball stitch sewing machine can be suppressed. In addition, the same effect as the invention described in any one of claims 1 to 5 is exerted.

According to the seventh aspect of the present invention, since the detecting means is provided below the mounting surface of the blanket placing table, the space on the blanket placing table is increased.
Therefore, when placing the blanket on the blanket placing table, the blanket can be easily placed on the blanket placing table, and the detecting means does not hinder the placing operation. In addition, the same effect as the invention described in any one of claims 1 to 5 is exerted.

According to the ball stitch sewing machine according to the eighth aspect of the present invention, since the mounting position of the detecting means is movable along the longitudinal direction of the pocket hole, the size of the blanket to be placed is set. In addition, the detection position of the detection means can be adjusted in accordance with the mounting position of the blanket and the size and position of the detected object. Therefore, the detecting means can surely detect the detection object. In addition, the same effect as the invention described in any one of claims 1 to 5 is exerted.

[Brief description of the drawings]

FIG. 1 is a side view showing an overall configuration of a bead sewing machine according to the present invention.

FIG. 2 is a front view showing a blanket supply device provided in the ball stitch sewing machine.

FIG. 3 is a side view showing a main part of a cutting device provided in the blanket supply device.

FIG. 4 is a perspective view showing a blanket mounting table provided in the blanket supply device.

FIG. 5 is a block diagram showing a control device provided in the bead sewing machine.

FIG. 6 is a flowchart showing the operation of the blanket supply device.

FIG. 7 is a flowchart showing the operation of the bead sewing machine.

FIG. 8 is a side view showing an operation process of the blanket supply device.

FIG. 9 is a flowchart illustrating an operation of a blanket supply device provided in the ball-stitch sewing machine according to the second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sewing machine table 2 sewing machine main body 4 blanket supply device 10 ball stitch sewing machine 41 blanket mounting table 41 d mounting surface 42 blanket transport device (transport device) 43 cutting device (cutting device) 50 blanket presser device (cutting device 81) Reflection type optical sensor (detection means) 81a Detection unit 90 Processing operation unit (constituting control means) 91 Timer (time measurement means) 100 Control device (control means) M1 Body cloth M2

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Kenji Kitada 8-2-1 Kokuryo-cho, Chofu-shi, Tokyo F-term in Juke Corporation (reference) 3B150 AA25 CC01 CE22 CE23 CE27 EE03 EH01 EH07 GD04 LA00 LA46 LB01 NA76 NB09 NB12 NC18 QA06 QA07

Claims (8)

[Claims] 1. A blanket mounting table on which a blanket is mounted, and
In a ball-stitch sewing machine including a blanket supply device that supplies a blanket placed on the blanket mounting table onto a workpiece on a sewing machine table, a detection that detects an object to be detected on the blanket mounting table And a control means for controlling a predetermined driving mechanism when it is determined based on an output of the detecting means that a blanket has been placed on the blanket placing table. 2. The ball stitch sewing machine according to claim 1, wherein said blanket supply device is movable as said predetermined drive mechanism between said blanket mounting table and said sewing machine table. And, a transport means for transporting the ball cloth placed on the ball cloth mounting table to the sewing material on the sewing machine table, and the control means, when the ball cloth is mounted on the ball cloth mounting table A ball stitch sewing machine characterized in that the transport means is controlled so as to move from the sewing machine table to the ball cloth mounting table when judged. 3. The ball-stitch sewing machine according to claim 1, wherein the ball-cloth supply device includes a pocket hole of a ball-cloth mounted on the ball-on mounting table as the predetermined drive mechanism. Cutting means for cutting both side portions of the first cutting portion, wherein the control means cuts the blanket placed on the blanket placing table when it is determined that the blanket is placed on the blanket placing table. A bead sewing machine controlling the cutting means so as to perform the cutting operation. 4. The ball stitch sewing machine according to claim 1, wherein said control means detects an object to be detected on said blanket mounting table by said detection means, A ball stitch sewing machine, which determines that a blanket has been placed on the blanket placing table after an object to be detected is no longer detected. 5. The ball stitch sewing machine according to claim 1, wherein said control means detects an object to be detected on said blanket placing table by said detection means, When the detected object is no longer detected, the time measuring means for starting time measurement is provided.The time measuring means measures time until a preset time is set, and before the time elapses after the time is started. The timer is provided to reset the time when an object to be detected is detected by the detection means, the control means, when the time elapse of the set time is completed by the time measurement means, the ball cloth A ball stitch sewing machine characterized in that it is determined that the sewing machine is mounted on the blanket mounting table. 6. A ball stitch sewing machine according to claim 1, wherein said detecting means is provided on said blanket mounting table. 7. A ball stitch sewing machine according to claim 6, wherein said detecting means is provided below a placing surface of said blanket placing table on which the blanket is placed. Edge sewing machine. 8. The ball stitch sewing machine according to claim 6, wherein said detection means is configured such that a mounting position on said blanket mounting table is movable along a longitudinal direction of said pocket hole. A ball stitch sewing machine characterized by the following.