JPH07308471A - Working cloth lateral feeding device for sewing machine - Google Patents

Abstract

PURPOSE:To easily deal with a change in the thickness of working cloth by providing a cloth receiving board position control means and a roller member position control means for precisely controlling the height position of a cloth receiving board from the upper surface of a bed and the height position of a roller member from the upper surface of the cloth receiving board. CONSTITUTION:Since a cloth receiving board position control mechanism is provided to precisely control a gap between the lower surface of a cloth receiving board 36 and the upper surface of a needle plate, and a gap between the upper end of a timing pulley 79 and the lower surface of the cloth receiving board 36 can be precisely controlled corresponding to the cloth thickness of lower cloth, it is possible to laterally feed the lower cloth under suitable pressure in the state of holding the lower cloth between the timing pulley 79 and the cloth receiving board 36. Similarly, since a roller member position control mechanism is provided to precisely control a gap between the upper surface of the cloth receiving board 36 and the lower end face of a roller member 48 and the gap can be precisely controlled corresponding to the cloth thickness of upper cloth, it is possible to laterally feed the upper cloth under suitable pressure in the state of holding the upper cloth between the cloth receiving board 36 and the roller member 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work cloth lateral feed device for a sewing machine, and more particularly, it laterally feeds a work cloth arranged on a cloth receiving plate on the upper surface of a bed by sandwiching the work cloth between the cloth receiving plate and a roller member. The present invention relates to a lateral feed device.

[0002]

2. Description of the Related Art Conventionally, in order to sew a complicated object to be sewn such as a cloth shoe, a lower cloth and an upper cloth are separated by a cloth receiving plate at an upstream side of a needle drop position. It is necessary to independently feed the lower cloth and the upper cloth in the cloth feeding direction and laterally feed the lower cloth and the upper cloth independently in the lateral direction orthogonal to the cloth feeding direction.

For example, Japanese Patent Publication No. 58-48199 discloses a cloth for separating an upper cloth and a lower cloth at a position near the upper surface of a bed in order to sew an upper cloth and a lower cloth in an overlapping manner while aligning the cloth end positions. A support plate (separation plate) is provided, a lower cloth traverse mechanism is provided on the lower surface of the bed for laterally feeding the lower cloth through a pinion-shaped roller member, and an upper cloth is provided with a pinion-shaped roller member on the upper surface of the bed. An upper cloth lateral feed mechanism that laterally feeds through
There is disclosed a work cloth automatic guide device for an industrial sewing machine, which includes a cloth end stopper for receiving the cloth end of the upper cloth, a cloth end detecting device for detecting the cloth ends of the upper cloth and the lower cloth, respectively. The upper cloth lateral feed mechanism is configured such that a roller member provided at the tip of a swing arm whose position can be switched by an air cylinder is driven by a motor via a transmission shaft, and the roller member is pressed onto the upper cloth. The abutting contact is not configured to finely adjust the height position of the roller member. The lower cloth lateral feed mechanism has the same structure.

In addition to the upper cloth lateral feed mechanism of the above publication, a structure in which a pinion-shaped roller member at the tip of the swing arm is driven via a belt member extending along the swing arm has been put into practical use. However, with the conventional horizontal cloth feed mechanism,
No fine adjustment mechanism has been proposed for finely adjusting the height position of the transverse feed roller member with respect to the cloth receiving plate. Further, no fine adjustment mechanism has been proposed for finely adjusting the height position of the cloth receiving plate with respect to the upper surface of the bed.

[0005]

As described in the above publication, a lateral feed device for separating a lower cloth and an upper cloth by a cloth receiving plate and independently laterally feeding the lower cloth and the upper cloth. Regarding
The transverse feed device described in the above publication adopts a configuration in which the swing arm is biased by an air cylinder to press the roller member against the cloth receiving plate while sandwiching the work cloth. However, when the work cloth is strongly sandwiched between the roller member and the cloth receiving plate, the cloth feeding resistance for feeding the cloth in the cloth feeding direction (front-back direction) becomes excessive, which makes it difficult to smoothly feed the cloth. . That is, in order to smoothly feed the upper cloth and the lower cloth, a clearance for the upper cloth slightly smaller than the thickness of the upper cloth is formed between the roller member of the upper cloth traverse device and the upper surface of the cloth receiving plate. It is desirable to keep the space between the roller member of the lower cloth lateral feed device and the lower surface of the cloth receiving plate, and to form a lower cloth gap that is slightly smaller than the thickness of the lower cloth.

When the height position of the roller member of the lower cloth lateral feeding device is constant, the height of the cloth receiving plate is finely adjusted according to the thickness of the lower cloth so that the roller of the lower cloth lateral feeding device is adjusted. When the gap between the member and the bottom surface of the cloth receiving plate is finely adjusted, the gap between the roller member of the upper cloth lateral feeding device and the top surface of the cloth receiving plate changes due to the change in the height position of the cloth receiving plate. It is not easy to make fine adjustments for the cloth gap and the lower cloth gap independently. An object of the present invention is to provide a work cloth lateral feed device for a sewing machine, which can finely adjust the height position of the cloth receiving plate with respect to the bed upper surface and can finely adjust the gap between the cloth receiving plate and the upper cloth.

[0007]

A work cloth traverse device for a sewing machine according to claim 1, wherein the work cloth traverse device for machine feeds a work cloth disposed on a bed upper surface in a direction transverse to the work cloth feed direction. A second work cloth is laterally fed through a cloth receiving plate which is arranged on the upper surface of the bed with a first work cloth interposed therebetween, and a roller member which abuts on the upper surface of the cloth receiving plate with a second work cloth interposed therebetween. Lateral feed means, cloth receiving plate position adjusting means capable of finely adjusting the height position of the cloth receiving plate with respect to the bed upper surface in order to finely adjust the gap between the bed upper surface and the cloth receiving plate, the cloth receiving plate and the roller member In order to finely adjust the gap between them, a roller member position adjusting means capable of finely adjusting the height position of the roller member with respect to the upper surface of the cloth receiving plate is provided.

Here, there is provided cloth receiving plate position switching means for switching the position of the cloth receiving plate between a use position where the cloth receiving plate position adjusting means operates and a retracted position retracted upward from the use position. It may be provided (claim 2 dependent on claim 1). Further, there may be provided roller member position switching means for switching the position of the roller member between a use position where the roller member position adjusting means acts and a retracted position retracted upward from the use position. Claim 3) dependent on claim 1 or claim 2).

Further, the lateral feed means includes a swing arm that supports the roller member at a tip portion thereof, a rotation drive means that drives the roller member to rotate via a belt member that extends along the swing arm, and swings. It may be configured as a transverse feed unit including a moving arm and a base member on which the rotation driving means is mounted (claim 4 dependent on claim 3).

[0010]

In the machine feed lateral feed device for a sewing machine of claim 1, the cloth receiving plate is arranged on the upper surface of the bed with the first work cloth interposed therebetween, and the transverse feeding means is provided on the upper surface of the cloth receiving plate with the second work cloth. The second work cloth is laterally fed through a roller member that is in contact with the work cloth at a distance. By finely adjusting the height position of the cloth receiving plate with respect to the bed upper surface by the cloth receiving plate position adjusting means, it is possible to finely adjust the gap between the bed upper surface and the cloth receiving plate, and by the roller member position adjusting means. By finely adjusting the height position of the roller member with respect to the upper surface of the cloth receiving plate, the gap between the cloth receiving plate and the roller member can be finely adjusted.

According to another aspect of the present invention, there is provided a cloth lateral feed device for a sewing machine, wherein the cloth receiving plate position switching means includes the cloth receiving plate.
The position is switched between the use position where the cloth receiving plate position adjusting means acts and the retracted position that is retracted upward from this use position. In the work cloth traverse apparatus for a sewing machine according to claim 3, the roller member position switching means is configured to:
The position is switched between a use position where the roller member position adjusting means acts and a retracted position retracted upward from this use position.

According to a fourth aspect of the present invention, there is provided a work cloth lateral feed device for a sewing machine, wherein the lateral feed means includes a swing arm that supports the roller member at a tip portion thereof and a belt member that extends along the swing arm. Since it is configured as a transverse feed unit including a rotary drive means for rotationally driving the roller member and a base member on which the swing arm and the rotary drive means are mounted, assembly, adjustment, repair, etc. of the transverse feed means are simplified. it can.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a case where the present invention is applied to an industrial sewing machine M provided with a work cloth lateral feed device.
In order to sew a cloth shoe 1 as shown in FIGS. 10 and 11, this industrial sewing device M uses an upper cloth 2 as an insole cloth 2 and an instep cloth as a lower cloth 3 for the upper cloth 2 in order to sew the cloth shoe 1. On the other hand, the lower cloth 3 is sewn while the lower cloth 3 is pressed in while the cloth end portion is sewn over the entire circumference. As shown in FIG. 1, this industrial sewing machine M includes a lock stitch sewing machine 10 similar to an industrial lock stitch sewing machine, an upper cloth lateral feed device 30 disposed on the upper surface of a bed portion 11, and a bed portion. 11, a lower cloth lateral feeding device 70, a work cloth guiding device 90, a lower cloth cloth edge detecting device and an upper cloth cloth edge detecting device (not shown), an operation panel 14 and a control unit ( (Not shown) and the like. In the following description, the front side of the sewing machine M will be referred to as the front and the left-right direction will be referred to as the left-right direction.

First, the lockstitch sewing machine 10 will be described. The lockstitch sewing machine 10 has a bed portion 11 mounted on a work table 15 as shown in FIGS.
And the pedestal portion 1 erected from the right end of the bed portion 11
2 and an arm portion 13 extending leftward from the upper end of the pedestal portion 12 so as to face the bed portion 11. Inside the bed portion 11, a lower feed dog vertical movement mechanism (not shown) for vertically moving the lower feed tooth 16 and a lower feed tooth forward / backward movement mechanism (not shown) for moving the lower feed tooth 16 back and forth, and a thread catcher. 25, a lower shaft 24 driven by the sewing machine motor 23, and the like.

In the arm portion 13, a needle bar drive mechanism for vertically moving a needle bar 18 to which a sewing needle 17 can be attached at the lower end, and a balance (not shown) is vertically moved in synchronization with the vertical movement of the needle bar 18. A balance driving mechanism (not shown) for driving, a shuttle driving mechanism for driving the thread catcher 25 composed of a vertical shuttle, and an upper feed dog up-and-down moving mechanism for vertically moving an upper feed dog 19 for feeding the upper cloth 2 in the cloth feed direction. (Not shown) and an upper feed dog forward / backward moving mechanism (not shown) for moving back and forth are provided. On the rear side of the needle bar 18, a presser bar 22 is supported on the head 13a of the arm 13 so as to be vertically movable, and a presser foot 21 is attached to the lower end of the presser bar 22. The presser bar 22 and the upper feed dog 19 are connected to a presser foot drive solenoid, and the presser bar 22 and the upper feed dog 19 are lowered to a retracted position by the presser foot drive solenoid and lowered. The position is switched to the working position.

The lower feed dog vertical movement mechanism of the lower feed tooth 16, the upper feed tooth vertical movement mechanism of the upper feed tooth 19, the needle bar drive mechanism, the balance drive mechanism, and the shuttle drive mechanism are the sewing machine motor 2
Driven by 3. The lower feed dog 16 is driven back and forth through the lower feed dog forward / backward moving mechanism at a feed amount according to the inclination of the feed controller that is changed by the drive amount of the linear solenoid. Further, the upper feed dog 19 is driven back and forth through the upper feed dog forward / backward moving mechanism by a feed amount according to the inclination of the feed controller which is changed by the rotation amount of the upper feed dog pulse motor. The working table 1
A sewing machine motor 23 is arranged immediately below 5 and is attached to the lower surface side of the work table 15. An operation panel 14 is attached to the top of the arm portion 13 of the lockstitch sewing machine 10, and the operation panel 14 is provided with a plurality of operation switches necessary for sewing work.

As shown in FIGS. 3 to 5, the cloth feed surface of the lower feed dog 16 is formed to have a slightly wider width.
Is arranged such that the cloth feed surface thereof slightly projects from the opening of the needle plate 27, and the needle hole 28 is formed in the needle plate 27 and the presser foot 21.
Are formed. The cloth feed surface of the upper feed dog 19 and the cloth feed surface of the presser foot 21 are positioned parallel to the feed direction and adjacent to each other on the left and right, and most of the cloth feed surface of the upper feed tooth 19 and the presser foot 21 are The left end of the cloth feed surface contacts the cloth feed surface of the lower feed dog 16 at a position near the left side of the needle drop position (that is, the needle hole 28) with the lower cloth 3 and the upper cloth 2 before and after sewing separated from each other. Is configured. Furthermore, at the right side position of the needle hole 28,
On the needle plate 27, a regulation wheel 8 that abuts on the right-side fabric edges of the lower cloth 3 and the upper cloth 2 to regulate the cloth edge position is arranged with its axis centered vertically. Is a vertical bolt 9 and needle plate 2
It is rotatably supported by 7.

Next, the upper cloth lateral feeding device 30 will be described. As shown in FIGS. 6 to 7, a mounting board 31 having a substantially L-shape in plan view is fixed to the upper surface of the bed portion 11 with screws, and a slide guide 32 is provided at a middle portion of the right half of the mounting board 31 in the front-rear direction. Is attached to the upper surface of a guide block (not shown) which is guided by the slide guide 32 so as to be movable in the left-right direction.
3 is fixed, and a horizontal second base plate 34 having a stepped shape in plan view is fixed to the front side portion of the first base plate 33, and a third base provided so as not to interfere with the second base plate 34. The plate 35 is arranged at substantially the same level as the second base plate 34, and a pivot block 37 is fixed to the upper surface of the right end of the plate 35. The pivot block 37 is attached to the upper surface of the second base plate 34. It is swingably provided around a pivot shaft 39 extending horizontally from the fixed pivot block 38 to the rear.

The cloth receiving plate 36 is arranged on the upper surfaces of the bed portion 11 and the needle plate 27 with the lower cloth 3 therebetween at the needle drop position, that is, the position near the upstream side of the needle hole 28 in the cloth feeding direction. The cloth receiving plate 36 is formed in an elongated rectangular shape on the left and right, and the right end portion thereof is fixed to the lower left end surface of the third base plate 35 by a bolt 40 via a spacer 41.
At a substantially middle position in the left-right direction of the third base plate 35
A mounting wall portion 42 that is erected in a standing wall shape is integrally formed on the third base plate 35, and a stepping motor 43 is attached to the rear side surface of the mounting wall portion 42 in the front-rear direction, and an output shaft 44 thereof is provided. The oscillating arm 46 is protruded to the front side of the mounting wall portion 42, externally fitted to the output shaft 44 and press-fitted and fixed in the pivot hole of the mounting wall portion 42, and the front end portion of the output shaft 44. Is pivotally supported up and down.

The swing arm 46 has a structure in which two plate members facing each other in parallel with a predetermined space in front and back are connected by a plurality of bolts. Between the two plate members, the output shaft 44 is provided with a spacer. 47a and the timing pulley 47 are externally fitted and fixed, and a pinion-shaped upper cloth feeding roller member 48 and a timing pulley 49 are pivotally supported by a pivot pin 50 at the tip of the swing arm 46. The roller member 48 and the timing pulley 49 are fixed to the pivot pin 50 by press fitting, and are rotatably attached together with the pivot pin 50. The timing pulley 47, the tension pulley 51, the timing pulley 49, and the idle pulley 5
The timing belt 53 is wound around the upper belt 2 and the roller member 48 is selectively rotated by the stepping motor 43 through the timing belt 53 in the forward rotation direction and the reverse rotation direction to precisely rotate the upper cloth 2. It is configured so that it can be laterally fed laterally.

Next, the cloth receiving plate 36 and the roller member 48.
The roller member position adjusting mechanism for finely adjusting the gap between the lower ends of the rollers and the roller member position switching mechanism for switching the position of the roller member 48 with respect to the cloth receiving plate 36 will be described. As shown in FIG. 6 and FIG. An air cylinder 56 located on the right side of the output shaft 44 is vertically attached to the plate 35, and an output rod 56a thereof is connected to a right end portion of the swing arm 46 via a connecting tool 57. Then, in order to regulate the swing arm 46 to a predetermined retracted position,
At a position on the right side of the output shaft 44 of the stepping motor 43, a stopper 58 is fixed to the third base plate 35, and a position regulating bolt 59 capable of contacting the stopper 58 is attached to the swing arm 46 at a small height position. It is attached to be adjustable.

Output shaft 44 of the stepping motor 43
A stopper 60 is fixed to the third base plate 35 at a position on the left side of the third base plate 35, and a position regulating bolt 61 capable of contacting the stopper 60 is attached to the swing arm 46 so that the height position can be finely adjusted. . Therefore, as shown in FIG.
When the output rod 56a of the air cylinder 56 is extended,
The swing arm 46 swings counterclockwise in FIG. 6 to switch the swing arm 46 to its use position until the position regulating bolt 61 comes into contact with the stopper 60 to regulate the position. The roller member 48 is also switched via 46 to its use position. Here, by finely adjusting the height position of the position regulating bolt 61, the gap between the upper surface of the cloth receiving plate 36 and the roller member 48 can be finely adjusted according to the thickness of the upper cloth 2. That is, the roller member position adjusting mechanism includes the swing arm 46, the stopper 60, the position regulating bolt 61 and the like.

On the contrary, when the output rod 56a of the air cylinder 56 is retracted, the swing arm 46 is rotated clockwise in FIG. 6 until the position regulating bolt 59 comes into contact with the stopper 58 to regulate the position. The swing arm 46 is switched to its retracted position by swinging to
The roller member 48 is also switched via 6 to its retracted position, which is moved upward from its use position. That is, the roller member position switching mechanism includes the swing arm 46, the air cylinder 56, the stoppers 58 and 60, and the position regulating bolt 5.
It is composed of 9, 61 and the like.

Next, the lower surface of the cloth receiving plate 36 and the bed portion 1
1 and the cloth receiving plate position adjusting mechanism for finely adjusting the gap between the upper surfaces of the needle plate 27 and the cloth receiving plate 36 for switching between the use position and the retracted position retracted upward from the use position. The plate position switching mechanism will be described with reference to FIGS.
As shown in, on the upper surface of the right end portion of the second base plate 34,
An air cylinder 62 is attached in a vertical direction, and the pivot block 37 extends to the right and has a crank-shaped input plate 6 in a front view.
3 is fixed, and the upper end of the output rod 62a of the air cylinder 62 is connected to the input plate 63.

Further, a stopper 64 is fixed to the upper end of the cylinder body of the air cylinder 62, and a position regulating bolt 65 capable of contacting the stopper 64 is attached to the input plate 63 so that the height position can be finely adjusted. There is. Furthermore, at a position to the left of the output shaft 44 of the stepping motor 43,
The stopper 66 is fixed to the mounting substrate 31, and the third
The base plate 35 is provided with a position regulating bolt 67 capable of contacting the stopper 66 so that the height position can be finely adjusted. Therefore, when the output rod 62a of the air cylinder 62 is extended, the third base plate 35 and the swing arm 46 swing counterclockwise around the pivot shaft 39, and the position regulating bolt 6
7 contacts the stopper 66, and the third base plate 35 and the swing arm 46 are switched to the use position. By finely adjusting the height position of the position regulating bolt 67, the gap between the upper surfaces of the bed portion 11 and the needle plate 27 and the lower surface of the cloth receiving plate 36 can be finely adjusted. That is, the cloth receiving plate position adjusting mechanism includes the third base plate 35, the stopper 66, the position regulating bolt 67, the spacer 41, the bolt 40, and the like.

On the contrary, when the output rod 62a of the air cylinder 62 is retracted, the third base plate 35 and the swing arm 46 swing clockwise around the pivot shaft 39 to regulate the position. The bolt 65 comes into contact with the stopper 64, and the third base plate 35 and the swing arm 46 are switched to the retracted position in which the third base plate 35 and the swing arm 46 swing and move upward by a predetermined small angle. That is, the cloth receiving plate position switching mechanism is the air cylinder 6
2, stoppers 64 and 66, and restriction bolts 65 and 67
And a third base plate 35 and the like.

In the upper cloth lateral feed device 30, a structure above the first base plate 33 such as the first, second and third base plates 33, 34 and 35, the cloth receiving plate 36, the swing arm 46 and the like. Is
The upper cloth lateral feed unit is configured in a unit shape, and the upper cloth lateral feed unit is inserted through the slide guide 32.
In order to switch between the sewing use position shown by a solid line in FIG. 7 and the non-use position shown by a chain line, an air cylinder 68 is horizontally attached to the flange portion 31a of the mounting substrate 31 in the left-right direction. Output rod 68 of this air cylinder 68
a is connected to the second base plate 34 via a connector 69. Most of the upper cloth lateral feed device 30 is configured as an upper cloth lateral feed unit, and the upper cloth lateral feed device 30 is also provided.
Is configured as a unit as an upper cloth transverse feed unit in which the upper cloth transverse feed unit is assembled on the mounting substrate 31 via the slide guide 32. Therefore, the upper cloth transverse feed device 30 is assembled and adjusted. , Repair, etc. are simplified.

Next, the lower cloth traverse device 70 for laterally traversing the lower cloth 3 will be described. As shown in FIGS. 8 and 9, an L-shaped bracket 71 is attached to the oil pan 26 that covers the lower surface side of the bed 11, and the main body 73 of the twin rodless cylinder 72 is obliquely attached to the bracket 71. The mounting bracket 7 having an L-shaped cross section is attached to the movable cylinder body 74 of the rodless cylinder 72.
5 is fixed to the mounting bracket 75, and an inclined arm 76 that extends upward to the vicinity of the lower surface of the left end portion of the cloth receiving plate 36 through the opening of the needle plate 27 is fixed at the lower end portion. A stepping motor 77 is fixed in the front-rear direction on the right side surface of the flange, and a timing pulley 78 is fixed horizontally to an output shaft 77a of the stepping motor 77 with its axis center in the front-rear direction.

A timing pulley 79 is rotatably attached to the upper end of the tilt arm 76 in parallel with the timing pulley 78. A timing belt 80 is wound around the timing pulleys 78 and 79. The lower cloth 3 is laterally fed by the timing belt 80 while sandwiching the lower cloth 3 between the top of the lower cloth and the lower surface of the cloth receiving plate 36. When the cylinder main body 74 is raised to the upper limit position by the rodless cylinder 72, the tilt arm 76 and the stepping motor 77 are switched to the use position, and the timing pulley 79 at the upper end of the tilt arm 76 is moved as shown in FIG. The upper end of the timing belt 80 on the outer peripheral side is held at a predetermined height position with a slight gap between it and the lower surface of the cloth receiving plate 36. On the contrary, when the cylinder main body 74 is lowered to the lower limit position by the rodless cylinder 72, the tilt arm 76 and the stepping motor 77 are lowered from the use position by a predetermined distance as shown by the chain line in FIG. It can be switched to the retracted position.

Next, the operation of the industrial sewing machine M described above will be described. At the start of sewing, the upper cloth traverse unit is moved from the non-use position to the sewing use position, the tilt arm 76 of the lower cloth traverse device 70 is set to the raised position, and the cloth receiving plate 36 is switched to the retracted position. And undercloth 3
Is set between the needle plate 27 and the cloth receiving plate 36, the cloth receiving plate 36 is switched to the use position, and the swing arm 46 is switched to the retracted position. When the swing arm 46 is switched to the use position after being set between the members 48, preparation for sewing is completed.

Next, the lockstitch sewing machine 10 is operated to sew the lower cloth 3 and the upper cloth 2, and at the time of sewing, the cloth ends of the upper cloth 2 and the lower cloth 3 come into contact with the restriction wheel 8. The control unit controls the stepping motor 43 of the upper cloth lateral feeding device 30 based on the cloth edge detection signal detected by the upper cloth edge detecting apparatus while being in contact with the upper cloth cloth edge detecting apparatus to regulate the cloth edge of the upper cloth 2. The upper cloth 2 is laterally fed so as to come into contact with the wheel 8, and the stepping motor 77 of the lower cloth lateral feeding device 70 is controlled by the control unit based on the material edge detection signal detected by the lower cloth edge detecting device. Is controlled so that the lower cloth 3 is laterally fed so that the cloth end of the lower cloth 3 contacts the regulation wheel 8.

Here, when the clearance between the lower surface of the cloth receiving plate 36 and the upper surface of the needle plate 27 is finely adjusted according to the cloth thickness of the lower cloth 3, the height position of the position regulating bolt 67 is slightly moved downward. When the adjustment is performed, the gap is adjusted in the expanding direction, and when the height position of the position regulating bolt 67 is adjusted upward, the clearance is adjusted in the decreasing direction. On the other hand, the upper cloth 2
The upper surface of the cloth receiving plate 36 and the roller member 48 according to the cloth thickness of
In the case of finely adjusting the gap between the lower ends of the position regulating bolts 61, if the height position of the position regulating bolt 61 is finely adjusted downward, the height of the position regulating bolt 61 is adjusted upward, and the height position of the position regulating bolt 61 is adjusted upward. When adjusted to, the gap is adjusted in a decreasing direction.

Thus, the lower surface of the cloth receiving plate 36 and the needle plate 2
A cloth receiving plate position adjusting mechanism having a simple structure for finely adjusting the gap between the upper surfaces of 7 and 7 is provided to finely adjust the gap between the upper end of the timing pulley 79 and the lower surface of the cloth receiving plate 36 according to the thickness of the lower cloth 3. Since it is configured to be adjustable, the lower cloth 3 is sandwiched between the timing pulley 79 and the cloth receiving plate 36 with an appropriate pressing force that is suitable for laterally feeding the lower cloth 3 and does not cause excessive pressing force. You can cross feed with. Similarly, a roller member position adjusting mechanism having a simple structure for finely adjusting the gap between the upper surface of the cloth receiving plate 36 and the lower end of the roller member 48 is provided, and the gap is finely adjusted according to the cloth thickness of the upper cloth 2. Since the upper cloth 2 is adjustable, the upper cloth 2 is sandwiched between the cloth receiving plate 36 and the roller member 48 with an appropriate pressing force that is suitable for laterally feeding the upper cloth 2 and does not cause excessive pressing force. You can cross feed with. When the pressing force that presses the lower cloth 3 and the upper cloth 2 becomes excessive, the lower feed dog 16 and
The cloth feed resistance when the cloth is fed by the upper feed dog 19 and the presser foot 21 becomes excessive, and it becomes difficult to sew smoothly.

Further, the cloth receiving plate 36 is replaced with the third base plate 35.
Since the lower cloth 3 can be easily attached / detached and the swing arm 46 can be switched between the use position and the retracted position, the swing arm 46 can be switched between the use position and the retracted position. , The upper cloth 2 can be easily attached and detached. Also,
Since the upper cloth traverse unit can be switched between the sewing use position and the non-use position retracted to the right, the sewing device M
Can also be used as a normal sewing machine.

As various modifications to partially modify the embodiment, the stoppers 58, 60, 64, 66 are omitted and the position is restricted only by the position restricting bolts 59, 61, 65, 67. Alternatively, the lower cloth lateral feeding device 70 may be configured to laterally feed the lower cloth 3 via a roller member.
The bed portion 11 having the same structure as the upper cloth lateral feed device 30.
It may be arranged on the upper side of the above, and can be implemented in a mode in which various modifications are added within a range not departing from the gist of the present invention.

[0036]

According to the work cloth lateral feed device of the sewing machine of the first aspect, in addition to the cloth receiving plate located between the first work cloth and the second work cloth, the lateral feed means, the cloth receiver for the bed upper surface. Since the cloth receiving plate position adjusting means for finely adjusting the height position of the plate and the roller member position adjusting means for finely adjusting the height position of the roller member with respect to the upper surface of the cloth receiving plate are provided, the cloth receiving plate position adjusting means is provided. By means of the means, the height position of the cloth receiving plate can be appropriately finely adjusted according to the thickness of the first work cloth, and by the roller member position adjusting means, the height position of the roller member can be adjusted by the means. It can be finely adjusted according to the thickness. Moreover, the fine adjustment by the cloth receiving plate position adjusting means and the fine adjustment by the roller member position adjusting means can be independently performed.

According to the work cloth lateral feed device of the sewing machine of the second aspect, the cloth receiving plate is placed at a use position where the cloth receiving plate position adjusting means acts and a retracted position which is retracted upward from the use position. Since the cloth receiving plate position switching means for switching the position is provided, the first work cloth can be efficiently set in the state where the cloth receiving plate is switched to the retracted position.

According to the work cloth lateral feed device of the sewing machine of the third aspect, the roller member is provided at a use position where the roller member position adjusting means acts and a retracted position which is retracted upward from the use position. Since the roller member position switching means for switching the position is provided, the second work cloth can be efficiently set in the state where the roller member is switched to the retracted position.

According to a fourth aspect of the present invention, there is provided a lateral feed device for a work cloth, wherein the lateral feed means includes a swing arm that supports the roller member at its tip and a belt member that extends along the swing arm. Since it is configured as a transverse feed unit including a rotary drive means for rotationally driving the roller member and a base member on which the swing arm and the rotary drive means are mounted, assembly, adjustment, repair, etc. of the transverse feed means are easy. Can be converted.

[Brief description of drawings]

FIG. 1 is a front view of an industrial sewing device according to an embodiment of the present invention.

FIG. 2 is a plan view of a bed portion of a lockstitch sewing machine of the sewing device.

FIG. 3 is an enlarged front view of an essential part of the lockstitch sewing machine.

FIG. 4 is a plan view of the needle plate, presser foot, and upper and lower feed dogs of the lockstitch sewing machine.

FIG. 5 is an enlarged side view of an essential part of the lockstitch sewing machine.

FIG. 6 is a front view of an upper cloth lateral feed device of the sewing device.

FIG. 7 is a plan view of an upper cloth lateral feed device and the like of the sewing device.

FIG. 8 is a side view of a lower cloth lateral feed device of the sewing device.

9 is a front view of the lower cloth lateral feeding device and the like of FIG. 8.

FIG. 10 is a perspective view of the cloth shoe after sewing.

FIG. 11 is a perspective view of the cloth shoe after sewing.

[Explanation of Codes] M Industrial sewing device 2 Lower cloth (corresponding to the first processed cloth) 3 Upper cloth (corresponding to the second processed cloth) 10 Lockstitch sewing machine 11 Bed section 30 Upper cloth traverse device 33 First Base plate 34 Second base plate 35 Third base plate 36 Cloth receiving plate 43 Stepping motor 46 Swing arm 48 Roller member 53 Timing belt 58, 60, 64, 66 Stopper 59, 61, 65, 67 Position regulating bolt 56, 62 Air cylinder

Claims (4)

[Claims] 1. A work cloth lateral feed device of a sewing machine for laterally feeding a work cloth arranged on a bed upper surface in a direction transverse to a work cloth feed direction, wherein a cloth receiver arranged on the bed upper surface with a first work cloth interposed therebetween. A plate, a lateral feed means for laterally feeding the second work cloth via a roller member that abuts the second work cloth on the upper surface of the cloth receiving plate, and a gap between the upper surface of the bed and the cloth receiving plate. To adjust
Cloth receiving plate position adjusting means capable of finely adjusting the height position of the cloth receiving plate with respect to the bed upper surface, and for finely adjusting the gap between the cloth receiving plate and the roller member,
A lateral cloth feed device for a sewing machine, comprising: roller member position adjusting means capable of finely adjusting a height position of the roller member with respect to an upper surface of the cloth receiving plate. 2. A cloth receiving plate position switching means for switching the position of the cloth receiving plate between a use position in which the cloth receiving plate position adjusting means acts and a retracted position retracted upward from the use position. The work cloth lateral feed device for a sewing machine according to claim 1, wherein 3. A roller member position switching means for switching the position of the roller member between a use position where the roller member position adjusting means operates and a retracted position retracted upward from the use position. The work cloth lateral feed device for a sewing machine according to claim 1 or 2, characterized in that. 4. The lateral feed means comprises a swing arm that supports the roller member at a tip portion thereof, a rotation drive means that drives the roller member to rotate through a belt member extending along the swing arm, and a swinging means. The work cloth lateral feed device for a sewing machine according to claim 3, wherein the lateral feed unit includes a moving arm and a base member on which a rotation driving means is mounted.