KR20010029607A - A sewing machine for sewing belt-loop - Google Patents

Abstract

PURPOSE: A sewing machine for sewing a belt loop is provided to be capable of easily changing the moving positions of a pair of bending shafts. CONSTITUTION: A sewing machine consists of a sewing machine body(2), a loop supply means(40) and a control means. The loop supply means(40) includes a pair of the bending shafts(70), drive means(72a, 72b) for bending, a bending shaft moving means(85) which moves a pair of the bending shafts(70) back and forth in such a manner that the bending shafts can stop at least at a sewing position, loop folding position and retreat position, and a drive means(90) for movement which drives the bending shaft moving means(85) in such a manner that the moving means can be controlled to an arbitrary position. The control means controls the drive quantity of the drive means(90) for movement in order to control the moving position of a pair of the bending shafts(70) and is so constituted that at least one among the moving positions consisting of the sewing position of a pair of the bending shafts(70), the loop folding position and the retreat position can be changed.

Description

Belt loop sewing sewing machine {A SEWING MACHINE FOR SEWING BELT-LOOP}

The present invention relates to a belt loop sewing sewing machine for sewing a belt loop to a sewing material.

Background Art A belt loop suture sewing machine has been proposed in which a belt loop supply device for automatically supplying a belt loop for inserting a belt to a waist portion of various sewing products such as jeans, pants, and skirts is provided.

10 to 13 show an example of a conventional belt loop sewing sewing machine described in, for example, US Patent USP5673639 or USP5588384, wherein the belt loop sewing sewing machine 1 is a sewing machine body 2 and the sewing machine body 2. It consists of a belt loop feeder (3) arranged at appropriate intervals on the side.

The sewing machine main body 2 is a cycle sewing machine, and two needles 6 and 6 are disposed in the sewing machine arm 5 in parallel along the longitudinal direction of the sewing machine arm 5. And each needle (6) (6) is attached to a known needle bar (7) that can be moved in conjunction with the rotation of the upper shaft is driven by a sewing machine motor (not shown). In addition, it is provided with two known cloth pressing members 9 and 9 for pressing the sewing material S on the needle plate 8 disposed on the sewing machine bed 4 during sewing.

The belt loop supply device 3 is provided with a tape conveying means 10 and a tape material for sending an elongated tape member T to a belt loop forming position disposed near the sewing position of the sewing machine body 2. A fixing means 11 for fixing, a cutting means 12 for cutting the tape material to a predetermined length, and a supply means 13 for feeding both ends of the tape material to the suture portion in a bent state.

The tape conveying means 10 has a tape material feeding die 14 having a tape material T disposed almost parallel to the sewing machine bed 4 on the right side of the sewing machine body 2 as shown in FIG. 10. Have On the upper side of the tape material delivery die 14, a release roller 15 which can be rotated by a motor (not shown) is arranged, and the roller 15 contacts the upper surface of the tape material T. By rotating the tape member T by a predetermined amount toward the belt loop forming position.

The fixing means 11 is guide rods (18) and (18) for waiting the tape material (T) transferred to the fixed receiving plate (16, 16) to the contact piece (17) (17), Compression coil springs 19 and 19 for fixing the tape material T attached to the contact pieces 17 and 17 on the receiving plates 16 and 16 are provided. The guide rods 18 and 18 and the compression coil springs 19 and 19 are movable up and down by driving means 20 and 20 for holding and fixing the tape member made of the air cylinder.

The cutting means 12 arranges the movable blade 21 above the front end of the tape material feeding die 14. And the movable blade 21 is capable of reciprocating in the vertical direction by the drive means made of an air cylinder (not shown), the tape member by the action of the fixed blade (not shown) disposed below the movable blade 21 It is supposed to cut (T).

The supply means 13 includes a pair of bending shafts 22 and 22 having a tip portion divided into two, a seesaw type guide lever 25 rotatably supported by the moving bracket 24, and a guide. The lower end of the lever 25 is provided with the drive means 23 which consist of rotary cylinders each independently arrange | positioned. The moving bracket 24 is connected to a driving means 26 for moving a bending shaft composed of a three-stage air cylinder disposed substantially horizontally above the moving bracket 24, and the moving bracket 24 is driven by driving the driving means 26. By moving forward and backward along this moving rail 27, each bending shaft 22 and 22 can move forward and backward to a retracted position, a loop bent position, and a sewing position along a predetermined movement trace. In addition, the supply means 13 is supported by the supply base 29 fixed by the fixing screw 28 on the base plate which is not shown in figure.

According to the conventional belt loop supply device 1 having such a configuration, first, the tape member T is released from the feeding die 14 by the rotation of the roller 15, and then by the receiving plates 16 and 16, respectively. Supported from below. Then, the driving means 20 and 20 are driven, and the guide rods 18 and 18 and the compression coil springs 19 and 19 are lowered to contact the tape member T with the guide rods 18 and 18. After pressing the pieces 17 and 17, press the compression coil springs 19 and 19 to fix them. Subsequently, the drive means 26 shown in FIG. 11 is driven to loop the loops from the retracted position toward the tape member T, where the respective bending shafts 22 and 22, together with the moving bracket 24, are positioned at the belt loop formation positions. It advances to a position, and inserts the tip of the shape of the two branches of the bending shafts 22 and 22 in the vicinity of both ends of the tape material T deviating from each receiving plate 16 and 16. As shown in FIG.

Subsequently, when the movable blade 21 is lowered by the driving means for cutting, the proximal end side of the tape member T is cut together with the fixed blade, and the belt loop B having a predetermined length is formed. ), Each of the bending shafts 22 and 22 rotates outward, and bends approximately 180 degrees with both ends of the belt loop B folded downward toward the center side.

Subsequently, the driving means 20 and 20 are driven to raise the guide rods 18 and 18 and the compression coil springs 19 and 19, and the support plates 16 and 16 and the compression coil springs 19 are raised. Open the fixed state of the belt loop B, which is sandwiched between (19) and becomes a fixed state.

Subsequently, the driving means 26 is driven to move the bending shafts 22 and 22 together with the movable bracket 24 toward the upper side of the needle plate 8 of the sewing machine body 2 as shown in FIG. The belt loop B bent at both ends stands in front of the sewing position.

Subsequently, when an operator positions the sewing material S at a predetermined position on the needle plate 6 and then operates the loop feed switch 30 (FIG. 11 to FIG. 13) arranged on the side of the sewing machine main body 2, driving The means 26 are driven to advance the bending shafts 2 and 22 together with the movable bracket 24 toward the sewing position, and the belt loop B bent at both ends thereof is sewn in detail as shown in FIG. The cloth pressing members 9 and 9 are supplied below.

Subsequently, when the cloth pressing members 9 and 9 are lowered to press both bent portions of the belt loop B, the driving means 26 is driven to retract the bending shafts 22 and 22 together with the moving bracket 24. By pulling the two ends of the bent shafts 22 and 22 divided from the two bent portions of the belt loop B, the belt is sewn on both sides of the belt loop B in the longitudinal direction with a predetermined sewing pattern. The loop B is closed at a predetermined position of the sewing material S. FIG.

When the bending shafts 22 and 22 are retracted, the driving means 23 and 23 are driven to reversely rotate the bending shafts 22 and 22 to return the bending shafts 22 and 22 to the initial state. After returning, the belt loop B is used for the next sewing, and the air is waited in front of the sewing position.

The feeding die 14 is provided with a thickness detecting means (not shown) for detecting the end of a seam or the like in various places of the tape material T or the presence or absence of the tape material T placed on the feeding die 14. .

In addition, the stop positions such as the retracted position, the loop bending position, and the sewing position of each bending shaft (22) and (22) are unique for each belt loop sewing sewing machine due to the precision or assembly precision of the parts when assembling the belt loop sewing sewing machine (1). Do.

In the above-described conventional belt loop sewing sewing machine 1, as the driving means 26 for moving the bending shaft, each bending shaft 22, 22 is moved by driving a three-stage air cylinder to move the belt loop B. Is supplied to the sewing position, the interval of the drive means 26 relative to the sewing machine main body 2 and the moving position of each bending shaft 22, 22 are fixed at the time of machine attachment adjustment.

Therefore, when the width or sewing length of the belt loop B is changed, it is necessary to change the stop positions such as the loop bending position and the sewing position, which are the moving positions of the respective bending shafts 22, but in this case, the attachment of the driving means 26 is performed. Since the position and the stroke are fixed at the time of the machine attachment adjustment, the fixing screw 28 is loosened to change the interval of the supply means 13 with respect to the sewing machine main body 2, and the attachment of the supply means 13 with the sewing machine main body 2. There is a problem that the operator must precisely adjust the position, and the operator requires great effort and time to accurately position the stop position, which is the movement position of the supply means 13.

That is, in order to adjust the distance between the sewing machine main body 2 and the supply means 13, loosen the fixing screw 28 to adjust the position of the supply means 13, and then tighten the fixing screw 28, and then confirm the operation. The operation to perform is repeated several times.

In the conventional belt loop sewing sewing machine (1), when the width and material of the belt loop (B) is changed, the amount of the belt loop (B) entering the two divided parts of the bending shafts (22) and (22) is an appropriate value. Loop bending positions of the respective bending shafts 22 and 22 with respect to the belt loop B, which is held in place and fixed between the support plates 16 and 16 and the compression coil springs 19 and 19. Is not proper, the end of the belt loop (B) does not overlap the longitudinal center side of the belt loop (B) when bent by the rotation of the two divided parts as shown in Fig. 14 so that the position is shifted, so that the so-called dog ear There is a case.

In the case where a dog diamond is generated in the belt loop B, it is necessary to precisely set and adjust the loop bending positions of the respective bending shafts 22 and 22. For this reason, the operator must adjust the position of the stopper for stroke adjustment of the drive means 26 which consists of a three-stage air cylinder, and there existed a problem that a worker requires great effort and time in order to adjust this stopper correctly.

In addition, in the conventional belt loop sewing sewing machine 1, it is necessary to adjust the distance of the loop supply means 13 to the sewing machine main body 2 by disposing a known sewing machine such as an XY table on the sewing machine main body 2. In this case, however, productivity is reduced because unnecessary time is required to move the sewing material S which fixed the sewing material moving device to the sewing position when executing the sewing operation.

Therefore, there is a need for a belt loop sewing sewing machine that can easily change the moving position of the pair of bending shafts 22 according to the width of the belt loop B, the sewing length, and the like.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and an object thereof is to provide a belt loop sewing sewing machine that can easily change a moving position of a pair of bending shafts.

Features of the belt loop sewing sewing machine of the present invention as described in claim 1 of the claims for achieving the above object is attached to the sewing machine body and the position away from the sewing machine body to sew the belt loop supplied to the sewing position And loop supply means for supporting both ends of the belt loop at the loop bending position and supplying it to the sewing position of the sewing machine main body, and control means for controlling the operation of each part, and the loop supply means has two ends of the belt loop. A pair of bending shafts which can be supported by a divided tip, bending means for rotating the pair of bending shafts respectively, and a pair of bending shafts to be stopped at a sewing position, a loop bending position and a retracted position at least Drive the reciprocating bending shaft moving means and the bending shaft moving means to be controlled to an arbitrary position. A moving position comprising a driving means for moving, the control means controlling the driving amount of the moving driving means to control the moving position of the pair of bending shafts, and simultaneously comprising a sewing position, a loop bending position and a retracting position of the pair of bending shafts; At least one of them is configured to change.

In addition, the belt loop suture sewing machine of the present invention described in claim 2 is characterized in that the control means is a bending correction position data for moving at least one pair of bending shafts to the loop bending position, or a pair of bending Sewing pattern storage means for storing several sewing patterns including one side of sewing correction position data for moving the shaft to the sewing position, and selecting means for selecting a desired sewing pattern with several sewing patterns stored in the sewing pattern storage means; And a loop bending position and a sewing position of the pair of bending shafts based on the sewing pattern selected by the selection means when performing the sewing operation.

In addition, the belt loop suture sewing machine of the present invention described in claim 3 is characterized in that the control means according to claim 1, wherein the control means is a reference to move the at least one pair of bending shafts and the pair of bending shafts to the loop bending position A numerical value representing the distance between the loop bending reference position, which is a preset bending reference distance value, or a numerical value representing the distance between the loop bending reference position and the reference sewing sewing position to move the pair of bending shafts to the sewing position in advance. Sewing means for correcting the sewing position on the basis of the reference distance memory means for storing one side of the set bending sewing reference distance value, the bending correction position data for correcting the loop bending position based on at least the loop bending reference position, or the sewing reference position. Has an input means for inputting one of the correction position data, and executes a sewing operation The loop bending position or sewing position of a pair of bending shafts based on the bending reference distance value or the sewing sewing reference distance value stored in the reference distance storage means, the bending correction position data input by the input means, or the sewing correction position data. It is configured to control.

In addition, the belt loop suture sewing machine of the present invention as described in claim 4 is characterized in that the control means in claim 1 is a sewing reference to move the retracted position of the pair of bending shafts and a pair of bending shafts to the sewing position A repellent sewing reference distance memory means for storing a previously set retractable sewing reference distance value as a numerical value representing a distance from the reference position, and input means for inputting sewing correction position data for correcting the sewing position on the basis of the sewing reference position; It is configured to control the sewing position of a pair of bent shafts based on the sewing sewing reference distance value stored in the repellent sewing reference distance storage means and the sewing correction position data inputted by the input means when the sewing operation is executed. .

In addition, the belt loop suture sewing machine of the present invention as described in claim 5 is characterized in that the sewing machine body for sewing the belt loop supplied to the sewing position to the sewing material, and attached to a position away from the sewing machine body, both ends of the belt loop It has a loop supply means for supporting the part at the loop bending position and supplying it to the sewing position of the sewing machine main body, and a control means for controlling the operation of each part, and the loop supply means has a two-pronged end of the belt loop. A pair of supportable bending shafts, a bending drive means for rotating and driving a pair of bending shafts respectively, a bending shaft moving means for reciprocating to move the pair of bending shafts at a sewing position, a loop bending position and a retracted position at least , The driving means for driving to control the bending shaft moving means to any position, and the retraction position of the pair of bending shafts And a retracted position sensor attached to a position for detecting the tooth, the control means having a numerical value representing a distance between the retracted position of the pair of bending shafts and the loop bending reference position as a reference for moving the pair of bending shafts to the loop bending position. A pair of pouch sewing reference distances or loop bending reference positions, which is a numerical value representing the distance from the bending reference distance value or the retraction position of a pair of bending shafts and the sewing reference position that is a reference to move the pair of bending shafts to the sewing position. Set at least any one of the sewing sewing reference distance values, which is a numerical value representing the distance from the sewing sewing reference position to move the bending shaft to the sewing position, according to the mechanical attachment position of the sewing machine body, the loop supply means, and the evacuation position sensor. It has a setting means that can

In addition, the belt loop suture sewing machine of the present invention as described in claim 6 is characterized in that the sewing machine body for sealing the belt loop supplied to the sewing position to the sewing material, and attached to a position away from the sewing machine body to separate both ends of the loop. It has a loop supply means for supporting at the sewing position of the sewing machine body by supplying it at the loop bending position, and a control means for controlling the operation of each part, and the loop supply means is capable of being supported by the leading end formed in the shape of the two ends of the belt loop divided into two parts. A pair of bending shafts, a bending drive means for rotating the pair of bending shafts respectively, and a pair of bending shafts reciprocating to stop at a sewing position, a pause position, a loop bending position, and a retracted position at least And a moving drive means for driving the control means so as to control the bending shaft moving means to an arbitrary position. The control means controls the driving amount of the moving drive means to control the moving position of the pair of bending shafts, and the control means controls the driving amount of the moving driving means to control the moving position of the pair of bending shafts. At the same time, the control means controls the driving amount of the moving drive means to control the moving position of the pair of bending shafts, and at the same time, among the moving positions including the sewing position, the pause position, the loop bending position and the retracting position of the pair of bending shafts. At least, it is configured to be able to change the pause position.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view from above of the main part of a first embodiment of a belt loop sewing sewing machine according to the present invention.

Fig. 2 is a schematic view of the main portion of Fig. 1 as seen from the operation side.

3 is an enlarged view showing the vicinity of the tape receiving surface of the tape member supporting member.

4 is a block diagram showing a main portion of a control means.

5 is an explanatory diagram showing a main portion of an operation panel;

Figure 6 is an explanatory view showing a simplified view of the bending position in the set state and the sewing position of the bending shaft in the first embodiment of the belt loop sewing sewing machine according to the present invention.

Fig. 7 is a main flowchart showing the operation of the loop supply means in the first embodiment of the belt loop sewing sewing machine according to the present invention.

Fig. 8 is a flowchart for explaining a setting mode of sewing data in the first embodiment of the belt loop sewing sewing machine according to the present invention.

Fig. 9 is a flowchart for explaining the bending operation of the belt loop in the first embodiment of the belt loop sewing sewing machine according to the present invention.

FIG. 10 is a view as shown in FIG. 6, which simplifies the setting position of the bending shaft and the moving position in the sewing state in the second embodiment of the belt loop sewing sewing machine according to the present invention;

Figure 11 is a perspective view showing the main portion of an example of a conventional belt loop sewing sewing machine.

12 is a main portion of a state in which both pairs of bending shafts are bent at the loop bending position after bending the tape member by the belt loop sewing sewing machine of FIG. Schematic side view.

FIG. 13 is a view similar to FIG. 12 showing a main portion in a state where a pair of bending shafts by the belt loop sewing sewing machine of FIG.

FIG. 14 is a view similar to FIG. 12 showing a main portion of a state in which a pair of bending shafts by the belt loop sewing sewing machine of FIG.

15 is an explanatory diagram illustrating a dog loop of a belt loop in a conventional belt loop sewing sewing machine.

※ Explanation of symbols about main part of drawing ※

2: sewing machine body 35, 35A: belt loop sewing sewing machine

36: belt loop supply device 37: tape material feed supply means

38: tape material support means 39: tape material cutting means

40: loop supply means 48: control means

70: bending shaft 72a, 72b: driving means for bending

85: bending shaft moving means 90: moving drive means

96: retracted position sensor 97: home sensor

99: CPU 100: memory

101: operation panel 102: display means

103: display item selection means 104: input means

106: initial setting switch 107: ready switch

109: selection means 120: data storage

121: program storage unit 130: sewing pattern storage means

131: bending reference distance memory means

132: sewing reference distance memory means

T: Tape material B: Belt loop

S: Sewing material La: Bending reference distance value

Lb: Correction value (of bending reference distance value)

Lc: amount of movement (required to move a pair of bend shafts from the retracted position to the loop bent position)

Ld: Sewing length Le: Width

Lf: Bending sewing reference distance value

Lg: amount of movement (necessary to move the pair of bending shafts from the loop bending position to the sewing position)

Lh: Retraction sewing reference distance value Li: Correction value (of bending sewing reference distance value)

Lj: amount of movement (required to move the pair of bending shafts from the retracted position to the sewing position)

Lm: Pause reference distance Ln: Adjustment value (of pause reference distance)

Next, the present invention will be described by way of examples shown in the drawings. In addition, the same code | symbol is attached | subjected about the structure similar to the conventional thing mentioned above.

The belt loop suture sewing machine of the present embodiment, for example, by sewing the belt loop (B) to the sewing material (S), such as jeans, a sewing machine body (2) consisting of a two-needle cycle sewing machine as described above as shown in FIG. ) And a belt loop supply device 36 disposed on the right side of the sewing machine main body 2. These sewing machine main bodies 2 and the belt loop supply apparatus 36 are attached and arranged on the substantially flat table surface formed in the upper surface of the sewing table which is not shown in figure. The operator is located on the front end side of the bed (4 below) of the sewing machine body 2 to perform a sewing operation. In addition, the configuration of the sewing machine body 2 of the present embodiment is the same as in the prior art, the detailed description thereof will be omitted.

The belt loop supply device 36 has a tape feeding means 37, a fixing means 38, a cutting means 39, a loop feeding means 40, and the flat table on which they are placed, as shown in FIG. It has a supply base 78 fixed to the bed.

The tape conveying means 37 is for removing and feeding the long tape member T from the operator side (below FIG. 1) and feeding it to the belt loop forming position. The tape conveying means 37 is to follow the right side of the sewing machine body 2 as viewed from the operator side. It has the release means 42 and the drawing-out means 43 arrange | positioned facing each other at appropriate intervals.

The release means 42 arranged on the operator side has a release roller 45 for releasing the tape material T, which release step 45 is a stepping motor through a one-way clutch (not shown). It is connected to the unwinding motor 46 (FIG. 4) which consists of a rotational drive about the horizontal rotation axis orthogonal to the delivery direction (arrow A) of the tape material T. As shown in FIG. The releasing motor 46 is electrically connected to the control means 48 (FIG. 4) mentioned later, and is driven at the predetermined timing based on the control command sent out from the control means 48. FIG.

The take-out means 43 is for taking out the tape member T released by the release means 42 in the direction of arrow A, and is shown in FIG. 1 by a take-out motor 52 (FIG. 4) made of a stepping motor. And a holding member (50) attached to the distal end of the driving rod (53) and the driving rod (53) for reciprocating to the forward position and the retracted position. The holding member 50 is opened and closed by opening / closing drive means made of a reciprocating air cylinder or the like, which is not shown, so that the tip portion of the tape member T can be pinched or released. The drawing motor and the drive means for opening / closing move the drive rod 53 forward and backward or open / close the holding member 50 at a predetermined timing based on the control command from the control means 48.

In the present embodiment, the tape conveying means 37 is formed by the unwinding means 42 and the extracting means 43. However, the tape conveying means 37 may be configured to use either one.

The fixing means 38 is for supporting the tape member T, which is supplied and fed to the belt loop forming position (retreat position) by the tape conveying means 37, from the lowering means 42 and the extracting means. It has the front support member 55a and the back support member 55b arrange | positioned between 43. As shown in FIG. The front and rear support members 55a and 55b are spaced a predetermined length so that the front and rear ends thereof are supported from below when the tape member T is cut back to become the belt loop B. FIG.

2 and 3, the front and rear support members 55a and 55b are substantially L-shaped, and when the tape receiving 57 having the top surface of the horizontal portion 56 formed on the substantially flat surface is transferred to the belt loop formation position, respectively. The tape member T is supported from below.

As shown in FIG. 3, a compression coil spring 61 for pressing the tape member T (belt loop) onto the tape receiver 57 with a predetermined contact force is disposed to face the tape receiver 57. This compression coil spring 61 is attached to the lower end surface of the attachment member 62 fixed to the lower end of the output shaft 63a of the reciprocating cylinder 63 (FIG. 2). The reciprocating cylinder 63 is driven at a predetermined timing so as to fold the lower end of the compression coil spring 61 relative to the tape receiving surface 57 based on the control command from the control means 48.

A pair of left and right bending guides 64a and 64b are attached to the attachment member 62. The bending guides 64a and 64b are formed in the width direction of the tape member T when the attachment member 62 is lowered and the compression coil spring 61 presses the tape member T onto the tape holder 57. It is for positioning. For this reason, one of the bending guides 64a is formed to bend to gradually narrow the lower end to the outside to narrow the interval of the other of the bending guides 64b.

By driving the respective reciprocating cylinders 63 on the basis of the control command sent out from the control means 48, the respective attachment members 62 move in the up and down direction, and the respective bending guides 64a and 64b and the respective compressions. The coil spring 61 can be moved up and down.

The cutting means 39 is for cutting the tape member T to a predetermined length to make the tape piece, which is located above the traveling path of the tape member T at all times and moves down by an action (not shown). And fixed blades (not shown) which are disposed to face each other between the movable blades and the traveling path rolls of the tape member T. The movable blade is moved by cutting drive means made of a reciprocating air cylinder (not shown) or the like driven at a predetermined timing based on the control command from the control means 48.

The loop supply means 40 has front and rear bending shafts 70a and 70b to bend both ends of the cut tape piece (belt loop B) to the center side and to be supplied to the sewing position.

Then, two fins 71 spaced apart from each other are fixed to the distal ends of each of the bending shafts 70a and 70b, and the tape member T can be inserted between the two pins 71 from the side. Further, bending means (72a) (72b) made of rotary air cylinders or the like for rotating a predetermined angle are separately attached to the proximal ends of the bending shafts (70a) (70b), respectively. The rotary air cylinders are each independently driven by the actuating solenoid valves 73a and 73b (Fig. 4) connected to the control means 48 (Fig. 4). Each of the actuation solenoid valves 73a and 73b can drive the respective bending shafts 70 at the same time or at different timings based on the control instructions from the control means 48.

As shown in FIG. 2, the center portions of the bending shafts 70a and 70b are respectively supported at the front end portions of the support members 74, which are referred to as seesaw guide levers, which are arranged in a pair of right and left. Further, each of the bending shafts 70a and 70b is attached to the support member 74 in a state where the tip side is biased upward by a bushing spring (not shown), and the tip portions of the bending shafts 70a and 70b are respectively. When the load is applied downward, the tip portions of the respective bending shafts 70a and 70b are allowed to move downward by a predetermined amount against the spring force.

The base end of the pair of left and right support members 74 is rotatably supported by a connecting shaft 76 attached to the front end of the base body 75 having a planar T-shape. Further, both supporting members 74 move in the axial direction along the connecting shaft 76 in accordance with the length of the belt loop B so that the gap between them can be adjusted.

On the upper side of the supply base 78, there is a fleece 80 with driving teeth and a driven tooth at predetermined intervals in a direction orthogonal to the conveying method A of the tape member T (left and right directions). The fleece 81 is rotatably arranged so that the timing belt 82 is placed between the two toothed flies 80 and 81, and the timing belt 82 is fixed to the upper portion of the base 75. The fixing member 77 is caught and fixed. The toothed pliers 80 are connected to drive gears 83 coaxially rotatably integrated. The drive gear 83 is engaged with the output gear 91 attached to the output shaft 90a of the moving drive means 90 which consists of a sub-motor fixed on the supply base 78.

In addition, as shown in FIG. 2, a flat cam body 93 is disposed on the side of the standing portion of the supply base 78, and each of the bending shafts 70 moves between the retracted position and the sewing position. 47 controls the movement trajectory by the cam groove 94 of the cam body 93.

The pair of supporting members 74, the base 75, the fixing member 77, the toothed fleece 80, the toothed fleece 81, the timing belt 82, the drive gear 83 and the cam body ( 93, the bending shaft moving means 85 is constituted.

The moving drive means 90 is electrically connected to a control means 48 (FIG. 4), which will be described later, and is driven at a predetermined timing based on a control command sent out from the control means 48.

That is, by driving the drive means 90 based on the control command sent out from the control means 48, the bending shaft moving means 85 moves the pair of bending shafts 70 in the sewing position and the sewing position as shown in FIG. It is formed to reciprocate between the spaced apart retracted position. The pair of bending shafts 70 can be stopped at the loop bending position disposed between the retracting position and the sewing position as a reciprocating path from the retracted position to the sewing position.

Temporarily stops the belt loop B used for the next sewing during the sewing operation by temporarily stopping the pair of bending shafts 70 at the standby position located near the sewing position on the reciprocating path from the loop bending position to the sewing position. Since it can be made into the position waiting, the following belt loop B can be supplied to a sewing position in a short time.

The upper part of the supply base 78 is attached to the retracted position sensor 96 (Fig. 4) made of a non-contact sensor such as a proximity switch or a light sensor to face the retracted position. The evacuation position sensor 96 detects a detector (not shown) arranged in the base 75, and the detection signal is sent to the control means 48. As a result, the movement of the bending shaft 70 to the retracted position is detected.

The evacuation position detected by the evacuation position sensor 96 is configured to coincide with the origin position serving as the operation reference point of the pair of bending shafts 70. That is, the retracted position sensor 96 of the present embodiment has a function as an origin sensor 97 that detects the origin position of the pair of bending shafts 70, and thus, the number of stop positions of the pair of bending shafts 70. The operation of the pair of bending shafts 70 can be performed quickly by reducing the number of steps.

The retracted position and the home position may be set to different positions.

As the retracted position sensor 96, a contact type sensor such as a limit switch may be used.

In the loop supply means 40 according to the present embodiment, the pair of bent shafts 70 are moved forward and backward by driving the base body 75 supporting each bent shaft by the moving driving means 90 made of a submotor. However, the drive means 90 may be another control motor capable of controlling the driving amount, such as a stepping motor or a linear motor.

As shown in Fig. 4, the control means 48 of the present embodiment includes at least an I / O interface 98, a CPI 99, ROM, RAM, and the like, which are used for connection with each part of the belt loop sewing sewing machine 35. And an I / O interface 98 used for connecting the memory 100 and the belt loop sewing sewing machine 35 formed by the same.

The I / O interface 98 includes at least a motor 46, a pull-out motor 52, driving means 72a and 72b for each bending, movement driving means 90, evacuation position sensor 96, Various drive devices and switches for controlling sewing operations such as the home position sensor 97, the operation panel 101, the sewing machine motor 115, and the supply switch 116 are electrically connected.

The supply switch 116 is operated when the bending shaft 70 stopped at the loop bending position starts to move from the loop bending position toward the sewing position.

As shown in Fig. 5, the operation panel 101 includes at least display means 102, display item selecting means 103, input means 104, reset switch 105, initial setting switch 106 as setting means, and preparation completion. The switch 107, the ready indicator 108, and the like are disposed.

The display means 102 is formed by, for example, a liquid crystal display panel or the like, and the items of the sewing operation to be executed, the pattern number of the sewing operation to be performed, the correction value Lb for the loop bending reference position, sewing length Ld, and The sewing conditions consisting of the width Le of the belt loop (B) can be displayed in figures and numerical values, and at the same time, it is formed to enable various kinds of error display. In addition, the item displayed on the display means 102 may be set as needed, such as a design concept, and is not specifically limited to the structure of a present Example. In addition, the display means 102 can easily identify the display portion of the item selected by the display item selection means 103 by blinking or the like.

The display item selecting means 103 is used to convert display items displayed on the display means 102, and has a pair of left and right direction keys 103R and 103L. Each time one of the direction keys 103R is pressed, the display portion, for example, flashing and displayed on the display means 102, moves to the display portion of the item located adjacent to the right side, and the other direction key 103L. Each time the is pressed, the display portion, for example, flashing and displayed on the display means 102, moves to the display portion of the item located adjacent to the left side.

In addition, the display item selecting means 103 has a function as the selecting means 109 for selecting a sewing pattern required for a sewing operation performed in a plurality of sewing patterns stored in the memory 100 as described later. One sewing pattern is formed by the correction value Lb, the sewing length Ld for obtaining the sewing correction position data, and the width Le of the belt loop B. FIG.

The input means 104 is a reference to move at least the sewing length Ld of the width Le of the belt loop (B) or the retracted position of the pair of bending shafts 70 and the pair of bending shafts 70 to the loop bending position. A numerical value representing the distance to the loop bending reference position is used to input bending correction position data, which is a correction value Lb for a preset bending reference distance value, and is formed by ten numerical input keys 104a of 0 to 9.

In addition, the sewing correction position data, which is a value indicating the distance between the loop bending reference position and the pair of bending shafts 70 as the sewing position as a reference, as a correction value Li for a preset sewing sewing reference distance value, is Based on the sewing length Ld and the width Le of the belt loop B, it is calculated by the formula Li = (Le-Ld) / 2.

The sewing correction position data itself having a correction value Li may be input.

When the device specific data setting mode is selected, the initial setting data corresponding to the mechanical attachment position of one sewing machine is stored in the memory 100 by the operation of the initial setting switch 106. As the initial setting data, the bending reference distance value La, which is a numerical value representing the distance between the retracted position of the pair of bending shafts 70 and the loop bending reference position, which is used as a reference for moving the pair of bending shafts 70 to the loop bending position. 6) or a bending sewing reference distance value Lf (FIG. 6) or a pair of bendings, which is a numerical value representing the distance between the loop bending reference position and the sewing reference position as a reference to move the pair of bending shafts 70 to the sewing position. There is a retractable sewing reference distance value Lh (Fig. 6), which is a value indicating the distance between the retracted position of the shaft 70 and the sewing reference position as a reference for moving the pair of bending shafts to the sewing position.

The pattern number of the sewing operation to be executed before the sewing operation, the sewing length Ld, the width Le of the belt loop B, the loop bending position of the pair of bending shafts 70 and the sewing data per sewing position are displayed in the ready switch ( 107).

The ready indicator 108 configured by the LED is turned on when the ready switch 107 is turned ON, the operator can easily check the ready state.

The data storage unit 120 stores at least a plurality of sewing patterns and various initial setting data as shown in FIG. 4, and one sewing pattern includes a pattern number of a sewing operation, a sewing length Ld and a belt loop (in this pattern number). Width B of B) and bending correction position data Lb which are correction values. The initial setting data includes a bending reference distance value La, a bending sewing reference distance value Lf, and a retractable sewing reference distance value Lh. That is, each reference value La, Lf, Lh is not stored for each sewing pattern as part of the sewing pattern, but the sewing pattern is stored separately.

Therefore, the data storage unit 120 includes sewing pattern storage means 130 for storing a plurality of sewing patterns, bending reference distance storage means 131 for storing the bending reference distance value La, and at least the bending sewing reference distance value Lf and It becomes the structure which has the function of the sewing reference distance storage means 132 which memorize | stores one side of the repellent sewing reference distance value Lh.

Each reference value La, Lf, Lh is not stored for each sewing pattern as part of the sewing pattern as shown in Fig. 4, but is stored separately from the sewing pattern.

In the present embodiment, each of the storage means 130, 131, 132 is constituted by an area in which the address of one element is different, but may be constituted by separate elements.

The program storage unit 121 controls the driving amount of the moving drive means 90 to control the moving position of the pair of bending shafts 70 and at the same time the stop position which is the moving position of the pair of bending shafts 70. The program controlling to be changeable is stored.

In more detail, the program storage unit 121 includes a first program for controlling the loop bending position and the sewing position of the pair of bending shafts 70 based on the data of the sewing pattern selected by the selecting means 109, and a memory. Based on the bending reference distance value La and the bending sewing reference distance value Lf memorized in 100, the sewing conditions (sewing length Ld, the width Le of the belt loop B) input by the input means 104, and the correction value Lb. Both of the second program for controlling the loop bending position and the sewing position of the pair of bending shafts 70 according to the sewing conditions are stored. Controlling the loop bending position and the sewing position of the pair of bending shafts 70 according to the sewing conditions is specifically performed by the driving means 90 for moving so as to control the movement amount of the pair of bending shafts 70 according to the sewing conditions. The driving amount is controlled and will be described later in detail.

In addition, the second program is a pre-set sewing machine as a numerical value representing the distance between the retracting position and the sewing position of the pair of bending shafts 70 set in accordance with one mechanical attachment position in the data storage unit 120 of the memory 100. The reference distance value Lh is stored and based on the bending reference distance value La and the retractable sewing reference distance value Lh stored in the memory 100 when the sewing operation is executed, and the sewing conditions and correction values Lb inputted by the input means 104. The sewing position of the pair of bending shafts 70 may be controlled according to the sewing conditions. That is, the sewing position may be set on the basis of the retracted position (origin position) of the bending shaft 70.

As the program stored in the program storage unit 121, the bending reference distance value La stored in the memory 100 and the correction value Lb input by the input means 104 are stored when the sewing operation is executed to control the loop bending position. A program may be used to calculate a movement amount required for the pair of bending shafts 70 to move from the retracted position to the loop bending position according to the sewing conditions, and to control the moving drive means 90 based on the calculated movement amount. .

The memory 100 performs a program for initializing each part of the sewing machine main body 2, the tape conveying means 37, the fixing means 38, and the cutting means 39 at a predetermined timing, or the initializing operation during power-on. Programs such as programs are also stored.

That is, the control means 48 controls the driving amount of the moving drive means 90 to control the moving position of the at least one pair of bending shafts 70, while sewing and loop bending positions of the pair of bending shafts 70. And at least one of a moving position consisting of a retracted position.

The control means 48 has a sewing pattern storage means 130 and a selecting means 109, and the loop bending of the pair of bending shafts 70 based on the sewing pattern selected by the selecting means when performing the sewing operation. And control the position and sewing position.

The control means 48 also has a bending reference distance storage means 131 and an input means 104, and the bending reference distance value or bending sewing reference distance stored in the bending reference distance storage means 131 when the sewing operation is performed. And the loop bending position or sewing position of the pair of bending shafts 70 based on the bending correction position data or the sewing correction position data inputted by the input means 104.

In addition, the control means 48 is at least one of the bending reference distance value La, the retractable sewing reference distance value Lh and the bending sewing reference distance value Lf sewing machine body 2 and the loop supply means 40 and the retracted position sensor 96 It has a setting means 106 which can be set according to the mechanical attachment position of the.

Next, the operation of the present embodiment having the above-described configuration will be described.

The operation of the loop supply means 40 by the belt loop sewing sewing machine 35 is started by turning on the power by turning ON a power switch (not shown) as shown in FIG. In step ST01, it is determined whether or not the power is turned on in the state where the initial setting switch 106 is turned ON. If the initial setting switch 106 is ON, the flow advances to step ST21 to set the device-specific data setting mode. Enter In addition, the setting mode of the apparatus-specific data of this step ST21 is terminated by the interruption of a power supply.

Here, the setting mode of the device-specific data is described in step ST21.

In the setting mode of the device-specific data, the bending reference distance value La and the pair of bending shafts 70, which are set in advance as a numerical value representing the distance between the retracted position and the loop bending position of the pair of bending shafts 70, as shown in FIG. The preset bending sewing reference distance value Lf as a numerical value representing the distance between the loop bending position and the sewing position is input using the input means 104 disposed on the operation panel 101 in accordance with the mechanical attachment position of each one.

The control means 48 stores these bending reference distance values La and bending sewing reference distance values Lf in the data storage unit 120 of the memory 100 as device-specific data. This device-specific data is generally set when the belt loop sewing sewing machine 35 is first attached or when the loop supply means 40 is attached or detached by repair or modification. In addition, you may adjust the attachment position of the loop supply means 40 according to each fixed reference value La and Lf.

When the initial setting switch 106 is OFF in step ST01, the flow advances to the next step ST02, and the predetermined sewing conditions on the display portion of the display means 102 of the operation panel 101 are sewn in this embodiment. Pattern eg No. 1 and the sewing pattern consisting of the sewing length Ld according to this sewing pattern number (No. 1), the width Le of the belt loop, and the correction value Lb for the bending reference distance value La, are called from the data storage unit 120 and the next step is performed. Proceed to ST03.

In addition, the pattern number of the predetermined | prescribed sewing operation | movement here must necessarily be No. of sewing pattern numbers of a sewing operation. 1 may be displayed, or the pattern number of the sewing operation selected when the last power supply is turned off may be set, and may be set according to a design concept or the like.

In the next step ST03, the pair of bending shafts 70 are moved to the retracted position which is the origin position, the process proceeds to the next step ST04, and in step ST04 it is determined whether the ready switch 107 is ON, If the ready switch 107 is OFF in step ST04, the flow advances to step ST05 to enter the setting mode of sewing data which is the sewing pattern, and waits until the judgment of step ST04 becomes YES.

Here, the setting mode of the sewing data will be described in step ST05.

When the power is turned on for the first time, it is set to the sewing data setting mode, and the sewing data is set to the sewing data setting mode unless the power is turned on while the initial setting switch is in the ON state. Sewing pattern number and sewing according to the sewing pattern number Selection and setting of the correction value Lb for the length Ld, the width Le of the belt loop B, and the bending sewing reference distance value Lf can be performed.

When the sewing mode setting mode is started as shown in Fig. 8, it is determined whether another sewing pattern number has been selected in step ST51, and if there is a sewing pattern number change in step ST51, the sewing pattern selected in the next step ST52. The sewing pattern consisting of the number, the set value according to the sewing pattern number, the sewing length Ld in this embodiment, the width Le of the belt loop, and the correction value Lb for the bending reference distance value La are called from the data storage unit 120 for operation. It displays on the display part of the display means 102 of the panel 101, and progresses to next step ST53.

In addition, the sewing pattern number can be changed by changing one of the five pieces displayed on the display portion of the display means 102 by operating one of the direction keys 103R and 103L of the display item selection means 103 together with the sewing data selection means 109. The sewing pattern number is changed by selecting a sewing pattern number among the items and then operating the numerical input key 104a of the input means 104.

In the next step ST53, it is judged whether or not the sewing pattern composed of the sewing length Ld according to the sewing pattern number, the width Le of the belt loop, and the correction value Lb for the bending reference distance value La, which is the bending position data, is changed. If no change, exit.

The sewing data is changed by operating the input means 104 and the sewing data selecting means 109.

At least in the sewing pattern which consists of the sewing length Ld memorize | stored in the data storage part 120 along the sewing pattern number, the width Le of the belt loop, and the correction value Lb with respect to the bending reference | standard distance value La in step ST53. When the value (set value) of one sewing data is changed, the process proceeds to the next step ST54 where the changed sewing pattern value (set value) is displayed on the display portion of the display means 102 of the operation panel 101, and the next step ST55. , The value of the sewing pattern here in the data storage unit 120 of the memory 100 storing the sewing pattern is updated, and the process returns to step ST51.

When the sewing data is changed, the value input from the input means 104 exceeds the operating limit or interferes with the operation setting of the device. Displays a warning of input data error. When such input data error is input, an error releasing operation of invalidating the input value is performed by turning ON the reset switch 105. The reset switch 105 is also used for canceling errors in other operation errors.

When new sewing data is newly set, in step ST53, a new sewing pattern number, a sewing length Ld according to the sewing pattern number, a width Le of the belt loop, and a correction value Lb for the bending reference distance value La are set. In step 120, the sewing pattern number and the sewing length Ld according to the sewing pattern number, the width Le of the belt loop, the correction value Lb for the bending reference distance value La, and the correction value Li for the bending sewing reference distance value Lf are stored in the data storage unit 120. Remember).

When the ready switch 107 is ON in step ST04, the ready light 108 is turned on at the next step ST06, and then the process proceeds to the next step ST07 to bend the belt loop B. FIG. After executing, the process advances to the next step ST08.

Here, the operation of bending the belt loop B in step ST07 will be described.

When the belt loop B is bent as shown in Fig. 9, first, the tape feed means 37 is driven in step ST71 to transfer and supply the tape material T having a predetermined length to the belt loop forming position. Fixing by 66, the process proceeds to the next step ST72.

Then, in step ST72, the belt member B is driven to cut the tape material T transported and supplied to the belt loop formation position at the proximal end to form a belt loop B having a predetermined length, and the process proceeds to the next step ST73. .

Subsequently, in step ST73, the moving drive means 90 is driven based on the bending position data composed of the movement amount Lc required to move the pair of bending shafts 70 from the retracted position to the loop bending position. The shaft 70 is moved from the retracted position to the loop bending position according to the sewing conditions, and both ends of the belt loop B are inserted into the respective leading ends formed in the bifurcated shape of the pair of bending shafts 70, and then Proceed to step ST74.

The movement amount Lc when the pair of bending shafts 70 is moved from the retreat position to the loop bending position is based on the CPU 99 based on the bending reference distance value La and the correction value Lb by the control program stored in the program storage unit 121. ) Lc = La + Lb, and the driving amount of the driving means 90 for movement is controlled based on this movement amount Lc.

The movement amount (movement distance) of the pair of bending shafts 70 is a pulse signal from the encoder attached to the sub-motor as the driving means 90 for movement by a counter that is cleared from the origin detection signal from the origin sensor 97. It counts and calculates the movement amount of a pair of bending shaft 70 from the rotation amount of the output shaft of a submotor. Therefore, by controlling the rotation amount of the sub-motor which is the moving drive means 90, the movement amount of the pair of bending shafts 70 is controlled to variably control the movement position of the pair of bending shafts 70.

Subsequently, in step ST74, the respective operating power supply valves 73a and 73b are operated to drive the bending drive means 72a and 72b, so that the respective bending shafts 70a and 70b rotate outwards, respectively. Both ends of the loop B are bent approximately 180 ° with their bottoms folded toward the center.

At this time, when the pair of bending shafts 70 stops at the loop bending position because the pair of bending shafts 70 can accurately control the amount of movement Lc from the retracted position to the loop bending position to be executed according to sewing conditions. Since the moving position of is not shifted back and forth with respect to the predetermined position, it is possible to reliably prevent the occurrence of dog ears in the belt loop B, and as a result, high sewing quality can be reliably maintained.

In step ST08, it is determined whether the supply switch 116 is ON. If the supply switch 116 is ON in the determination of step ST08, the process proceeds to the next step ST09 to sew a pair of bending shafts 70. The moving amount Lg (Lg = Lf-Lb-((Le-Ld) / 2)) necessary for moving from the loop bending position according to the condition to the sewing position according to the sewing condition is calculated, and the driving means for moving based on this moving amount Lg The driving amount of 90 is controlled, and as a result, the pair of bending shafts 70 are moved from the loop bending position according to the sewing condition to the sewing position according to the sewing condition. In step ST10, the cloth pressing member 9 is lowered. In step ST11, the pair of bending shafts 70 are retracted to the retracted position, and in step ST12, the sewing of the belt loop B to the sewing material S is started. In step ST13, during the sewing operation, the bending operation of the belt loop B as in step ST07 is performed. It waits until it completes, and when sewing is complete | finished, it returns to step ST08 and waits until the supply switch 116 turns ON in step ST08.

If the supply switch 116 is OFF in step ST08, the flow advances to step ST15. In step ST15, it is determined whether the ready switch 107 is ON. If the ready switch 107 is OFF, The flow returns to step ST08 and waits until the supply switch 116 is turned on in step ST08.

When the ready switch 107 is ON in step ST15, it progresses to next step ST16 and the ready light 108 turns off. Thereafter, after executing the setting mode of sewing data similar to the above step ST05 in step ST17, it is determined in step ST18 whether the ready switch 107 is 0N, and if the ready switch 107 is OFF, the step Proceed to ST17 to enter sewing data setting mode.

When the ready switch 107 is turned ON in step ST18, the ready light 108 is turned on in step ST19, and then returns to step ST08, and the supply position 116 is turned ON in step ST08. Wait until.

In addition, when the bending shaft 70 is stopped at the pause position, no precise control is required. For example, a temporary value set as a numerical value representing the distance between the retracted position and the pause position of the pair of bending shafts 70 may be used. The stop reference distance value is stored in the data storage unit 120, and the movement amount is calculated using the temporary reference distance value and the movement amount Lg required to move the pair of bending shafts 70 from the loop bending position to the sewing position. To control.

As described above, in the belt loop sewing sewing machine 35 of the present embodiment, the gap of the loop supply means 40 with respect to the sewing machine main body 2, in detail, the reference distance value La and the bending sewing reference distance value Lf, are precisely different. Even if it is not assembled, the sewing machine main body 2, the loop supply means 40, and the retracted position sensor 96 are merely inputted by changing and changing the bending reference distance value La and the bending sewing reference distance value Lf from the operation panel 101. Since each relative position can be set precisely, mechanical adjustment is unnecessary at the manufacturing stage, and adjustment work becomes simple. Therefore, a worker with a sewing machine uses a predetermined sewing material and a belt loop for test sewing, and performs a test sewing under predetermined sewing conditions to determine the presence or absence of dog ears for the bending reference distance value La, and the bending sewing reference distance value Lf. In regards to, it is possible to start sewing and determine whether the position where the needle falls and the distance from the end face of the belt loop B is within a predetermined range and can be adjusted until the sewing result is within the prescribed range.

In addition, according to the belt loop sewing sewing machine 35 of the present embodiment, the loop bending position of the pair of bending shafts 70 moved by the driving of the moving driving means 90 in a simple operation of operating the sewing data selecting means 109 and The sewing position can be easily changed according to the sewing conditions.

In addition, according to the belt loop sewing sewing machine 35, the input drive 104 and the sewing data selecting means 10 are operated to move the movement by a simple operation of inputting the sewing length Ld, the width Le of the belt loop B, and the correction value Lb. The loop bending position and the sewing position of the pair of bending shafts 70 moved by the driving of the means 90 can be easily changed according to the sewing conditions. In other words, the sewing conditions can be easily changed.

Accordingly, the pair of bending shafts 70 are operated by a simple operation of operating the input means 104 and the sewing data selection means 109 of the operation panel 101 without changing the distance of the loop supply means 40 to the sewing machine main body 2. At least the loop bending position and sewing position can be easily changed according to the sewing conditions, so that the operability, workability and work efficiency can be easily improved.

In the above embodiment, a pair of bending shafts 70 is used by using the bending reference distance value La stored in the bending reference distance storage means 131 and the bending sewing reference distance value Lf stored in the sewing reference distance storage means 132. Although the control means 48 is arranged in the sewing reference distance storage means 132, the input means 104 for inputting the repellent sewing reference distance value Lh in place of the bending sewing reference distance value Lf, , A pair of bending shafts 70 based on the sewing correction position data Lh stored in the sewing reference distance storage means 132 and the correction value Li input by the input means 104 when the sewing operation is executed. The sewing position may be controlled. In this case, the movement amount Lj of the bending shaft 70 from the retracted position is calculated as Lj = Lh-Li. The retractable sewing reference distance value Lh is input using the input means 104 arranged on the operation panel 101 in the setting mode of the device-specific data shown in step ST21 of FIG. In this configuration, the relative positions of the sewing machine main body 2, the loop supply means 40, and the retracted position sensor 96 can be strictly set by changing and inputting the retracted sewing reference distance value Lh in various ways. No mechanical adjustments are required in the manufacturing stage, making adjustments simple.

Fig. 10 shows a second embodiment of the present invention, in which the belt loop sewing sewing machine 35A of the second embodiment is in the middle of moving a pair of bending shafts 70 from the loop bending position to the sewing position as in the prior art. At the upper edge of the needle plate 8 side of the sewing machine main body 2, a belt loop B bent at both ends is arranged, and the pause position can be adjusted with respect to the sewing position. Done.

As shown in Fig. 10, in the belt loop sewing sewing machine 35A of the second embodiment, the data storage unit stores the temporary reference distance value Lm set as a numerical value representing the distance between the retracted position and the temporary reference position of the pair of bending shafts 70. Remember at 120. The memory of the temporary reference distance value Lm to the data storage unit 120 is, for example, the bending reference distance value La and the bending sewing in the setting mode of the device-specific data of the belt loop sewing sewing machine 35 of the first embodiment described above. It is performed by the input means 104 like input of the reference distance value Lf.

The pause position can be adjusted similarly to the loop bending position and the sewing position of the belt loop sewing sewing machine 35 of the first embodiment described above. That is, for example, a picture display indicating adjustment of the pause position is provided on the display portion of the display means 102, and any one of the direction keys 103R and 103L of the display item selection means 103 of the operation panel 101 is provided. To display the adjustment of the pause position on the display portion of the display means 102, and then to the data storage portion 120 by operating the numerical input key 104a of the input means 104. FIG. It executes by inputting the adjustment value Ln with respect to the stored pause reference distance value Lm.

Other configurations are the same as those of the belt root suture sewing machine 35 of the first embodiment described above.

Next, the operation of the belt loop sewing sewing machine 35A of the second embodiment will be described.

The belt loop sewing sewing machine 35A differs from the belt loop sewing sewing machine 35 of the first embodiment described above by moving from the loop bending position of the pair of bending shafts 70 to the sewing position in the middle of the movement. The action is added. That is, the movement of the pair of bending shafts 70 from the loop bending position to the temporary stop position is performed in the flowchart as shown in Fig. 7 in " execution of the belt loop operation " and step " belt loop bending operation " This is done right after the shutdown. The change from the first embodiment to such an operation is made by changing the control program stored in the program storage unit 121.

The amount of movement required to move the pair of bending shafts 70 from the loop bending position to the pause position is stored in the program storage section 121 of the control means 48 for controlling the respective sub-operations and changed by the changed control program. Based on the temporary reference distance value Lm, the adjustment value Ln, the bending reference distance value La, and the correction value Lb, the CPU 99 calculates Lm + Ln-(La + Lb), and the driving means for movement 90 Drive amount is controlled.

Therefore, according to the belt loop sewing sewing machine 35A of the second embodiment, since the pause position can be arranged at a desired position by the operator, it is possible to easily compatible with those of opposite properties of improving workability and improving productivity. That is, it is possible to easily arrange the pause position to a position where the distance to the sewing position is shortened while securing a working space.

As described above, according to the belt loop sewing sewing machine of the present invention as described in claim 1, the loop bending position of a pair of bending shafts is automatically performed by performing a simple operation of inputting bending correction position data or sewing correction position data by operating an input means. Alternatively, the sewing position can be adjusted, so that the movement position of a pair of bending shafts can be easily changed without mechanical adjustments such as changing the gap of the loop supply means to the sewing machine body or adjusting the stroke of the bending shaft moving means. Extremely excellent effect.

In addition, according to the belt loop sewing sewing machine of the present invention as described in claim 2, the loop bending position and sewing position of the pair of bending shafts can be automatically adjusted by performing a simple operation of operating the selection means. Extremely excellent effects such as making it possible to easily change a pair of bending shaft moving positions without performing mechanical adjustments such as changing the interval of the wheels or adjusting the stroke of the bending shaft moving means.

According to the belt loop sewing sewing machine of the present invention as described in claim 3, the loop bending position or sewing position of a pair of bending shafts is automatically performed by performing a simple operation of inputting bending correction position data or sewing correction position data by operating an input means. This makes it possible to easily adjust the moving position of a pair of bending shafts without making mechanical adjustments such as changing the gap of the loop supply means to the sewing machine body or adjusting the stroke of the bending shaft moving means. Effect.

In addition, according to the belt loop sewing sewing machine of the present invention, the sewing position of a pair of bending shafts can be automatically adjusted by executing a simple operation of inputting sewing correction data by operating an input means. Extremely excellent effects, such as being able to easily change the moving position of a pair of bending shafts without performing mechanical adjustments such as changing the interval of the supply means or adjusting the stroke of the bending shaft moving means.

In addition, according to the belt loop sewing sewing machine of the present invention as described in claim 5, at least one of the bending reference distance value, the retractable sewing reference distance value and the bending sewing reference distance value is easily performed by performing a simple operation of operating the setting means. It can be set and shows the outstanding effect. At least one of the bending reference distance, the retractable sewing reference distance value and the bending sewing reference distance value can be easily set, and at least one of the bending reference distance value, the retractable sewing reference distance value, and the bending sewing reference distance value can be set. It is possible to easily set the relative position of the sewing machine body, the loop supply means and the retracted position sensor by inputting various changes while increasing or decreasing the bending reference distance value, or the retractable sewing reference distance value or the bending sewing reference distance value. As a result, mechanical adjustments are unnecessary at the manufacturing stage, which makes the adjustment work extremely simple.

In addition, according to the belt loop sewing sewing machine of the present invention as described in claim 6, since the pause position can be arranged at a desired position by the operator, it is possible to easily achieve the opposite properties of improving workability and improving productivity. In other words, it is possible to easily arrange the position to shorten the distance to the sewing position while securing a pause position and work space, such as extremely excellent effect.

Claims (6)

A sewing machine main body for sewing the belt loop supplied to the sewing position to the sewing material, and a loop supply which is assembled at a position away from the sewing machine main body to support both ends of the belt loop at the loop bending position and supplies the sewing loop to the sewing position of the sewing machine main body. Means and control means for controlling the operation of each part, The loop supply means includes a pair of bending shafts capable of supporting both ends of the belt loop with a tip portion formed in a bifurcation shape, bending driving means for rotating driving the pair of bending shafts, respectively, and the pair of bending shafts. A bending shaft moving means for reciprocating so as to be stopped at a sewing position, a loop bending position and a retracted position at least, and a moving driving means for driving the bending shaft moving means to be controlled to an arbitrary position, The control means controls at least one of a moving position including a sewing position, a loop bending position, and a retracting position of the pair of bending shafts while controlling the driving amount of the moving driving means to control the movement position of the pair of bending shafts. Belt loop suture sewing machine, characterized in that configured to change. The method of claim 1, The control means Sewing pattern storage means for storing a plurality of sewing patterns including at least one of bending correction position data for moving the pair of bending shafts to the bending position or sewing correction position data for moving the pair of bending shafts to the sewing position; , Has a selection means for selecting a desired sewing pattern from a plurality of sewing patterns stored in the sewing pann storage means; And a loop loop sewing position and a sewing position of the pair of bending shafts based on the sewing pattern selected by the selection means when executing the sewing operation. The method of claim 1, The control means A predetermined bending reference distance value or a loop bending reference position as a numerical value representing a distance between at least the retracted position of the pair of bending shafts and a loop bending reference position which is a reference for moving the pair of bending shafts to a loop bending position; Reference distance storage means in which one of the preset bending sewing reference distance values is stored as a numerical value representing a distance from the sewing reference position as a reference to move the pair of bending shafts to the sewing position; At least one of bending correction position data for correcting the loop bending position on the basis of the loop bending reference position, or input means for inputting one of sewing correction data for correcting the sewing position on the basis of the sewing reference position; The pair based on the bending reference distance value or the bending sewing reference distance value stored in the reference distance storage means and the bending correction position data or sewing correction position data input by the input means when the sewing operation is executed; Belt loop sewing sewing machine, characterized in that configured to control the loop bending position or sewing position of the bending shaft. The method of claim 1, The control means A retractable sewing reference distance memory means for storing a retractable sewing reference distance value, which is a numerical value representing a distance between the retracted position of the pair of bending shafts and a sewing reference position which is a reference for moving the pair of bending shafts to the sewing position; , It has an input means for inputting the sewing correction position data for correcting the sewing position on the basis of the sewing reference position, And configured to control the sewing position of the pair of bending shafts based on the retractable sewing reference distance value stored in the retractable sewing reference distance storage means and the sewing correction position data input by the input means when the sewing operation is executed. Belt loop sewing sewing machine, characterized in that. A sewing machine main body for sewing the belt loop supplied to the sewing position to the sewing material, and a loop supply attached to a position away from the sewing machine main body to support both ends of the belt loop at the loop bending position and to supply to the sewing position of the sewing machine main body. Means and control means for controlling each sub-operation, The loop supply means includes a pair of bending shafts capable of supporting both ends of the belt loop with a tip portion formed in a bifurcation shape, bending driving means for rotating the pair of bending shafts respectively, and the pair of bending shafts at least. Bending shaft moving means for reciprocating so as to be stopped at the sewing position and loop bending position and the retracting position, moving driving means for controlling the bending shaft moving means to an arbitrary position, and evacuating the pair of bending shafts And a retracted position sensor attached to the position detecting position, The control means is a bending reference distance value or a pair of bending shafts which is a numerical value representing the distance between the retracted position of the pair of bending shafts and the loop bending reference position, which is a reference for moving the pair of bending shafts to the loop bending position. The retracted sewing reference distance value, which is a numerical value representing the distance between the retracted position and the reference sewing reference position for moving the pair of bending shafts to the sewing position, or the loop bending reference position and the pair of bending shafts to the sewing position. Setting means that can be set according to the mechanical attachment position of the sewing machine body and the loop supply means and the retracted position sensor at least one of the bending sewing reference distance value that is a numerical value representing the distance to the reference reference sewing position to move Belt loop sewing machine characterized in that having. A sewing machine main body which sutures the belt ruwl supplied to the sewing position to the sewing material, and a loop supply which is attached to a position away from the sewing machine main body to support both ends of the belt loop at the loop bending position to supply the sewing position of the sewing machine main body. Means and control means for controlling each sub-operation, The loop supply means includes a pair of bending shafts capable of supporting both ends of the belt loop in a two-headed shape, bending driving means for rotating the pair of bending shafts respectively, and the pair of bending shafts. A bending shaft moving means for reciprocating to be stopped at a sewing position, a pause position, a loop bending position and a retracted position at least, and a moving driving means for driving the bending shaft movement means to be controlled to an arbitrary position, The control means controls a driving amount of the driving means for moving to control the movement position of the pair of bending shafts, and simultaneously comprises a sewing position, a pause position, a loop bending position, and a retracted position of the pair of bending shafts. Belt loop suture sewing machine, characterized in that configured to change at least the pause position of the position.