WO2013077310A1 - Article-to-be-sewn transport device - Google Patents

Abstract

Provided is an article-to-be-sewn transport device capable of transporting an article in the correct orientation and sewing said article, even if the article to be sewn is large in size. An article-to-be-sewn transport device (100) is provided with: a folding station (106) for folding a sewn article (10) along a folding seam (14), forming the same into a square tube, and overlapping a seam margin section (18) formed on the edge of a principal sheet section (12) with the section (16) of the principal sheet to be sewn thereto; and a sewing station (108) for sewing a section (40) to be sewn along a sewing line (42) using a sewing material (50), and connected to the folding station. Therein, the folding station and the sewing station are provided with an intermittent advancing mechanism (190) for being in contact with the outer surface of the article to be sewn which is folded into a square tube, and maintaining the correct orientation thereof and advancing the article to be sewn.

Description

Sewing material transfer device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for transferring a material to be transferred to sew a material to be sewn, and more particularly to a device for transferring a material to be sewn, for example, a device for sewing a seam allowance of a large cardboard box.

As a conventional sewing machine for sewing a corrugated cardboard box, there is an apparatus composed of a pair of upper and lower needle upper and lower needle pullers and a pair of upper and lower needle upper and lower needle pullers.

Japanese Patent No. 4149436

However, the sewing machine has a problem that when the corrugated cardboard is a large size, the posture at the time of transporting the corrugated cardboard and the certainty of the transport are not sufficient, and the finished quality of the desired sewing product cannot be obtained.

SUMMARY OF THE INVENTION The main object of the present invention is to solve such a problem, and it is intended to provide an apparatus for transferring a sewing product that can be transferred and sewed in a correct posture even when the sewing product is large. Is to provide.

The sewing product transfer device according to the present invention is a transfer device that transfers a sewing product to a sewing machine for forming a rectangular tube by sewing large or long plate-shaped sewing products with a sewing wire. A folding station that folds the stitched workpiece into a rectangular tube by folding the fold, and overlaps a seam portion formed at an end of the main plate portion with a portion to be sewn on the main plate portion; A suturing station that is connected to the station and is stitched along the suturing line with a suturing wire material. The folding station includes a seaming allowance. Is located on the inner side of the stitched portion constituted by the stitched portion of the main plate portion and the main plate portion, and extends from the folding station to the stitching station along the stitching line of the stitched portion of the sewing product. Located near the guide portion and the guide portion, on the surface side opposite to the surface of the workpiece on which the guide portion is located, with the workpiece being interposed, and the main plate portion is stitched to the main plate portion by a crease. Folded toward the part and overlapped with the part to be sewn, a folding mechanism, a workpiece placement part for placing the article to be sewn so that it can be transported, and both sides in the transfer direction, The main plate part is bent into a square tube shape while touching the outer surface of the workpiece to be folded into a rectangular tube shape, and the sewing is performed while maintaining the posture in which the seam portion and the stitched portion of the main plate portion are overlapped. A transfer mechanism for transferring an object to a stitching station, wherein the stitching station intermittently sews a stitched portion constituted by the stitching portion and a portion where the main plate portion is stitched together with a suture wire, From the suturing station The workpiece to be sewn that is fed from the front end to the rear end so as to be transportable, and the workpiece to be sewn that is provided on at least one side in the transport direction and bent into a rectangular tube shape. A transfer mechanism for contacting the outer surface and transferring the work to be sewn to the sewing station while maintaining a posture in which the main plate portion is bent into a rectangular tube shape and the seam portion and the stitched portion of the main plate portion are overlapped; Furthermore, the folding station and / or the stitching station maintains the posture in which the main plate portion is bent into a square tube shape and the seam allowance portion and the portion where the main plate portion are stitched are overlapped with each other. It is a to-be-sewn material transfer apparatus provided with the intermittent feed mechanism which contacts an outer surface and conveys to-be-sewn material in synchronization with the operation of intermittently sewing the sewing machine portion.
In the article transfer device according to a second aspect of the present invention, the guide portion substantially orthogonally intersects the first main plate portion of the sewing object and the fourth main plate portion separated from the first main plate portion, and In the state where the seam allowance portion provided continuously with the fourth main plate portion is folded and superimposed on the inner surface of the first main plate portion, a right-angle joining surface is provided along the inner surface of the seam allowance portion and the fourth main plate portion. It is a to-be-sewn material transfer apparatus of Claim 1 which is a columnar body.
In the article transfer device according to a third aspect of the present invention, the folding mechanism includes a portion where the first main plate portion is stitched to the seam allowance portion bent toward the inner surface of the first main plate portion of the sewing object. 3. The sewing product transfer apparatus according to claim 1, further comprising: a folding bar having a surface for overlapping the two and an actuator that operates the folding bar to be movable forward and backward at a stitching portion.
In the sewing product transfer device according to claim 4 of the present invention, the folding station and the sewing station indicate that the sewing product presence / absence detection sensor for detecting the presence or absence of the sewing product, and that the sewing product has arrived at a position where the sewing product is stitched. The sewing product transfer according to any one of claims 1 to 3, further comprising at least one arrival detection sensor to detect and a sewing distance detection sensor to detect a position of a sewing product for confirming a stitched length. Device.
In the sewing product transfer device according to claim 5 of the present invention, the intermittent feeding mechanism is configured to continuously follow the suture line so that the suction holes of the plurality of suction chambers are arranged in parallel to face the sewing product. A plurality of suction chambers arranged in series and a suction hole continuous to the suction hole are provided, and the suction holes arranged in parallel are arranged so as to intermittently transfer the sewing product while adsorbing to the outer surface of the sewing product. A plurality of suction chambers having an intermittent feeding belt formed so as to circulate on the outside and connected to the suction device are synchronized with the timing at which the stitched portion of the sewing product is stitched with the suture wire. The sewing product transfer device according to any one of claims 1 to 4, wherein the sewing product is configured to be sequentially sucked from the suction holes to transfer the sewing product.
In the workpiece transfer device according to claim 6 of the present invention, the first transfer belt conveyor and the second transfer belt conveyor are formed so that the interval is matched with the interval of the main plate portions facing the workpiece. The first intermittent feed conveyor and the second intermittent feed conveyor are provided in parallel with the direction of transfer of the sewing product, and the interval is formed in accordance with the interval of the main plate portions facing the sewing product, and the transfer of the sewing product is performed. It is a to-be-sewn material transfer apparatus in any one of Claim 1 thru | or 5 provided in parallel with the direction.
In the article transfer device according to claim 7 of the present invention, the guide portion includes a support guide body having a length direction and a columnar guide body, the length direction of the guide portion being upstream along the transfer direction of the work piece. The support guide body is located in a region on the inner surface side of the second main plate portion facing the sewing product, and the columnar guide body is disposed on the fourth main plate portion side facing the sewing product. Is positioned and fixed to the support guide body, and the support guide body is moved from the upstream side to the downstream stitching position with the first main plate portion of the sewing product positioned on the upper surface side thereof, and the columnar guide body is The sewing product transfer device according to any one of claims 1 to 6, wherein the seam allowance portion and the fourth main plate portion are positioned on the joint surface and transferred from an upstream position to a downstream suture position. .
In the article transfer device according to claim 8 of the present invention, the guide portion includes a support guide body having a length direction and a columnar guide body, the length direction of the guide portion being upstream along the transfer direction of the work piece. The upper surface of the support guide body is continuous at a position substantially the same as the upper surface of the joining guide portion provided in front of the stitching position, and the upper surface of the columnar guide body has an upper surface. 8. The apparatus according to any one of claims 1 to 7, wherein the joint guide portion provided before the stitching position is continuous at a substantially same height position as the guide gap portion provided at a position away from the upper surface. This is a workpiece transfer device.

According to the present invention, there is provided a transfer device for transferring a sewing product to a sewing machine for forming a rectangular tube shape by sewing a large or long plate-shaped sewing product with a sewing wire. A folding station, which is formed by bending a sewing object by a crease to form a rectangular tube shape, and overlapping a seam portion formed at an end of the main plate portion and a portion to be sewn on the main plate portion; A suturing station configured to sew a stitched portion formed by the overlapped seam allowance portion and a stitched portion of the main plate portion along the suturing line with a suture wire material, and the folding station includes the seam allowance portion and the main plate portion. A guide portion that is located on the inner side of the stitching portion constituted by the stitched portion and extends from the folding station to the stitching station along the stitching line of the stitching portion of the sewing product, Close to the id part, it is located on the surface side opposite to the surface of the article to be sewn where the guide part is located, and the seam allowance part is folded toward the part where the main plate part is sewn by the crease. Folding mechanism to bend and superimpose on the part to be sewn together, to-be-sewn product placement part to place the whole thing so that it can be transported, and to both sides in the transfer direction, bend into a square tube shape The main plate portion is bent into a rectangular tube shape in contact with the outer surface of the sewn product, and the posture in a state where the seam portion and the portion of the main plate portion to be stitched are superposed is held, and the sewn product is put into the sewing station. A transfer mechanism, and the suturing station is configured to intermittently sew a stitched portion composed of the seam margin portion and a portion of the main plate portion to be sewn together with a suture wire, and to transfer from the stitching station. Sewing material A main plate portion which is placed from the front end to the rear end so as to be transportable, and is in contact with the outer surface of the sewn product which is provided on at least one side in the transfer direction and is bent into a rectangular tube shape. And a transfer mechanism for transferring the work to be sewn to the stitching station while maintaining a posture in which the seam allowance portion and the main plate portion to be stitched are overlapped with each other. The station and / or the sewing station is in contact with the outer surface of the sewing product while maintaining a posture in which the main plate portion is bent into a rectangular tube shape and the seam allowance portion and the stitched portion of the main plate portion are overlapped. Since it has an intermittent feed mechanism that transfers the workpiece in synchronization with the intermittent sewing operation of the part, the workpiece can be transferred and sewed in the correct posture even if the workpiece is large. Can provide the transfer device of wear.
According to a second aspect of the present invention, the guide portion substantially perpendicularly intersects the first main plate portion of the workpiece and the fourth main plate portion separated from the first main plate portion, and is connected to the fourth main plate portion. In a state where the seam allowance portion provided is folded and overlapped with the inner surface of the first main plate portion, it is a columnar body having a right-angled joint surface along the inner surfaces of the seam allowance portion and the fourth main plate portion. In a state where the posture is maintained, the workpiece can be transferred from the upstream to the downstream stitching position, and sewing can be performed accurately.
According to the invention of claim 3, the folding mechanism has a surface for superimposing a portion to be sewn on the first main plate portion on a seam allowance portion bent toward the inner surface of the first main plate portion of the sewing product. A folding bar provided in the sewing machine and an actuator for operating the folding bar so that the folding bar can be moved forwards and backwards. It can be transferred to the stitching position and can be sewn accurately.
According to the fourth aspect of the present invention, the folding station and the sewing station include a sewing object presence / absence detection sensor for detecting the presence / absence of the sewing object, an arrival detection sensor for detecting that the sewing object has arrived at a sewing position, and sewing. At least one stitching distance detection sensor for detecting the position of the sewing product for checking the length of the sewing product is provided, so that the sewing product is intermittently stitched with the correct posture while maintaining the correct posture. The sewing product can be transferred intermittently and accurately.
According to a fifth aspect of the present invention, the intermittent feeding mechanism includes a plurality of suctions continuously provided along the suture line so that the suction holes of the plurality of suction chambers are arranged in parallel to face the workpiece. A suction hole continuous to the chamber and the suction hole is provided so as to circulate on the outside of the parallel suction holes so that the sewing product is intermittently transferred while adsorbing to the outer surface of the sewing product. A plurality of suction chambers having intermittent feeding belts formed and connected to the suction device are sequentially sucked from the suction holes in accordance with the timing at which the stitched portion of the sewing object is stitched by the suture wire. Since the sewing product is configured to be transferred, the sewing product can be transferred intermittently and accurately in accordance with the timing at which the sewing product is intermittently sewn while maintaining the correct posture.
According to invention of Claim 6, a 1st transfer belt conveyor and a 2nd transfer belt conveyor are formed in accordance with the space | interval of the main plate part which a to-be-sewn material opposes, and is parallel to the transfer direction of a to-be-sewn material. The first intermittent feed conveyor and the second intermittent feed conveyor are formed in accordance with the interval of the main plate portions facing the sewing product and provided in parallel with the transfer direction of the sewing product. Therefore, the sewing product can be transferred from the upstream to the downstream stitching position while maintaining the correct posture, and can be sewn accurately.
According to the invention of claim 7, the guide portion has a support guide body and a columnar guide body having a length direction extending from upstream to downstream along the length direction along the transfer direction of the sewing product, The support guide body is located in a region on the inner surface side of the second main plate portion facing the sewing product, and the columnar guide body is located on the fourth main plate portion side facing the sewing product, The support guide body is moved from the upstream to the downstream stitching position by positioning the first main plate portion of the sewing product on the upper surface side of the support guide body, and the columnar guide body has a seam portion and a joint surface on the joint surface. Since the fourth main plate portion is positioned and transferred from the upstream to the downstream stitching position, the workpiece can be transferred from the upstream to the downstream stitching position while maintaining the correct posture. Can be sewn accurately.
According to the invention of claim 8, the guide portion has a support guide body and a columnar guide body having a length direction extending from the upstream to the downstream along the length direction along the transfer direction of the sewing product, The upper surface of the support guide body is continuous at substantially the same height as the upper surface of the joining guide portion provided in front of the stitching position, and the upper surface of the columnar guide body is provided in front of the stitching position. Since the guide is continuously provided at the same height as the guide gap provided at a position away from the upper surface of the joining guide portion, the sewing product is transferred to the stitching position while maintaining the correct posture. Can be sewn accurately.

The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of embodiments for carrying out the invention with reference to the drawings.

It is a top view solution figure which shows this whole to-be-sewn material transfer apparatus. It is a top view solution figure which shows the folding station of this to-be-sewn material transfer apparatus. It is a top view solution figure which shows the stitching | suture station of this to-be-sewn material transfer apparatus. It is a front view solution figure which shows the whole this to-be-sewn material transfer apparatus. It is a front view solution figure which shows the folding station of this to-be-sewn material transfer apparatus. It is a front view solution figure which shows the stitching | suture station of this to-be-sewn material transfer apparatus. It is a side view solution figure which shows this whole to-be-sewn material transfer apparatus. It is a top view solution figure which shows the guide part of a folding station and a stitching | suture station. It is a front view solution figure which shows the guide part of a folding station. It is an illustration figure which shows the guide part of a stitching | suture station, (A) is a top view solution figure, (B) is a side view solution figure, (C) is a perspective view solution figure. It is a perspective view solution figure which shows a fold station transfer mechanism and the intermittent feed mechanism of a stitching station. It is a side view solution figure which shows the guide part of a stitching | suture station. It is a perspective view solution figure of the suction conveyor of the intermittent feeding mechanism of a stitching station. It is a top view solution figure of the suction conveyor of the intermittent feed mechanism of a stitching station. It is a front view solution figure of the suction conveyor of the intermittent feeding mechanism of a stitching station. It is a side view solution figure of the suction conveyor of the intermittent feeding mechanism of a stitching station. It is a top view solution figure of a drive body. It is a front view solution figure of a drive body. It is a chart figure which shows the operating state of a driver. It is a chart figure which shows the operating state of a driver. It is a side view solution figure which shows the guide part of a stitching | suture station. It is a front view solution figure which shows the guide part of a stitching | suture station. It is an illustration figure which shows the lifter of the sewing machine of a stitching | suture station, (A) is a side view solution figure, (B) is a front view solution figure. It is a top view solution figure which shows the mechanism for moving and stopping a supply station, a folding station, a stitching station, and a discharge station. It is a flowchart which shows the action | operation of a folding station and a stitching station. It is a side view solution figure which shows the modification of a guide part. It is a perspective view solution figure which shows the modification of a sewing machine. It is a perspective view solution figure which shows the folding and sewing method of a cardboard box.

The sewing object transfer and sewing device according to the present invention is formed into a rectangular tube shape by sewing the gantry 102 and the plate-like sewing object 10 forming a large or long cardboard box with the sewing wire 50. A sewing machine 60 and a sewing product transfer device 100 that transfers the sewing product 10 to the sewing machine 60 are provided.

The gantry 102 is formed into a rectangular tube shape by bending the sewed workpiece 10 by a fold line 14 and a sewed workpiece supply station 104 for feeding the workpiece 10 to the next station. A fold station 106 that overlaps the seam allowance portion 18 formed at the end and the portion 16 to be sewn on the main plate portion 12, and a portion that is connected to the fold station 106 and is stitched on the overlapped seam allowance portion 18 and the main plate portion 12. 16 and a suturing station 108 for suturing the suturing portion 40 constituted by 16 along the suturing line 42 with the suturing wire 50.
The gantry 102 is erected on the near side and the far side of the sewing product mounting portions 132 and 180 for mounting the sewing product 10 having a substantially rectangular shape in plan view. , A guide part 120, a folding mechanism 140, a transfer mechanism 160, and an attachment support part for attaching the intermittent feed mechanism 190. The sewing product 10 is transferred in the longitudinal direction of the sewing product mounting portion 132 and the sewing product mounting portion 180.

The article to be sewn 10 is made of a single cardboard and includes a substantially square main plate portion 12.
The main plate portion 12 is divided into a first main plate portion 20, a second main plate portion 22, a third main plate portion 24, and a fourth main plate portion 26 by a fold line 14, and is continuously provided via the fold line 14.
The fold line 14 includes a first fold line 30 formed between the first main plate part 20 and the second main plate part 22, and a second fold line 32 formed between the second main plate part 22 and the third main plate part 24. And a third fold line 34 formed between the third main plate part 24 and the fourth main plate part 26, and a fourth fold line 36 formed between the fourth main plate part 26 and the seam allowance part 18. .
The to-be-sewn product 10 is formed in a rectangular tube shape by bending the main plate portion 12 by a fold line 14. The first main plate portion 20, the second main plate portion 22, the third main plate portion 24 and the fourth main plate portion 26 are plate bodies having the same shape and the same size in a plan view, and the first fold line 30 and the second fold line 32. The third fold line 34 and the fourth fold line 36 are parallel straight lines.

The seam allowance portion 18 has a rectangular shape having the same width as the fourth main plate portion 26, and is provided on the front side of the fourth main plate portion 26 through a fourth fold 36.
As shown in FIG. 1, the workpiece 10 is provided with protrusions constituting the upper lid portion and the bottom plate portion of the cardboard box on the front side (upper side) and the rear side (lower side) of the main plate portion 12.
28 A of 1st protrusion parts are provided in the front side (upper side) of the 1st main board part 20 via the 5th crease | fold 28C, Similarly, the front side (the 2nd main board part 22, the 3rd main board part 24, and the 4th main board part 26 ( A first protrusion 28A is provided on the upper side via a fifth fold 28C.
Between the first protrusion 28A on the front side (upper side) of the first main plate part 20 and the first protrusion part 28A on the front side (upper side) of the second main plate part 22, there is a first separation part 28B that continues to the first fold line 30. Is formed. Similarly, the first protrusion 28A on the front side (upper side) of the second main plate part 22, the third main plate part 24, and the fourth main plate part 26 is the front side of the third main plate part 24 and the fourth main plate part 26 adjacent thereto ( A first separation portion 28 </ b> B that is continuous with the second fold line 32 and the third fold line 34 is formed between the upper side first protrusion 28 </ b> A.
A second projecting portion 38A is provided on the rear side (lower side) of the first main plate portion 20 via a sixth fold 38C. Similarly, the second main plate portion 22, the third main plate portion 24, and the fourth main plate portion 26 A second protruding portion 38A is provided on the rear side (lower side) via a sixth fold 38C.
A second continuation of the second fold line 32 is provided between the rear side (lower side) second protrusion 38A of the first main plate part 20 and the rear side (lower side) second protrusion part 38A of the second main plate part 22. A separation portion 38B is formed. Similarly, the second projecting portion 38A on the rear side (lower side) of the second main plate portion 22, the third main plate portion 24, and the fourth main plate portion 26 is adjacent to the third main plate portion 24 and the fourth main plate portion 26 adjacent thereto. A second separation portion 38B that is continuous with the second fold line 32 and the third fold line 34 is formed between the rear (lower) second protrusion 38A.

The workpiece supply station 104 is located on the upstream side of the transfer path when the workpiece 10 is transferred on the gantry 102 and includes a roll 112 for transferring the workpiece 10 while rotating.
The roll 112 is stretched over the gantry 102 so as to extend in the width direction of the gantry 102. A plurality of the rolls 112 are juxtaposed at an appropriate interval from the upstream side to the downstream side so as to extend perpendicularly to the transfer path when the workpiece 10 is transferred.

The folding station 106 is located inside the stitching portion 40 constituted by the seam allowance portion 18 and the portion 16 to which the main plate portion 12 is sewn, and is folded along the stitching line 42 of the stitching portion 40 of the sewing object 10. The guide portion 120 extends from the sewing station 108 to the suturing station 108.

The guide unit 120 includes a columnar guide body 122 and a support guide body 124 having a length direction.
The support guide body 124 and the columnar guide body 122 extend from the upstream to the downstream along the length direction of the support guide body 124 and the columnar guide body 122 along the transfer direction of the sewing object 10.
The support guide body 124 is located in a region on the inner surface side of the second main plate portion 22 facing the fourth main plate portion 26 standing in the vertical direction of the sewing product 10, and the columnar guide body 122 is formed of the sewing product. It is located on the side of the fourth main plate portion 26 facing the second main plate portion 22 standing in the vertical direction, and is fixed to the support guide body 124.
The support guide body 124 moves the first main plate portion 20 of the workpiece 10 from the upstream side to the downstream stitching position by positioning the first main plate portion 20 of the workpiece 10 on the upper surface side.
The columnar guide body 122 is configured to position the seam allowance portion 18 and the fourth main plate portion 26 on the joint surface 122a and transfer them from the upstream to the downstream stitching position.

The columnar guide body 122 has a first main plate portion 20 of the article to be sewn 10 and a fourth main plate portion 26 separated from the first main plate portion 20 substantially orthogonal to each other, and is continuously provided to the fourth main plate portion 26. In a state where the seam allowance portion 18 is substantially orthogonal to the fourth main plate portion 26, a right-angle joining surface 122 a is provided along the inner surfaces of the seam allowance portion 18 and the fourth main plate portion 26.
The support guide body 124 is a long columnar body having a length direction, and has an upstream end connected to the frame 102 of the workpiece supply station 104 and a downstream end connected to the sewing machine 60 of the sewing station 108. It is spanned so that the length direction is parallel to the transfer direction of the sewing object 10.
The columnar guide body 122 is provided horizontally on the front side of the support guide body 124 provided horizontally above the gantry 102, and the workpiece 10 is placed on the joining surface 122 a on the joining surface 122 a of the columnar guide body 122. It is configured to slide and move horizontally.

As shown in FIGS. 4 and 5, the guide portion 120 has a spacer 126 for ensuring a space that can be inserted to insert the seam allowance portion 18 below the main plate portion 12. The spacer 126 is a columnar body having a rectangular cross section that is provided on an upper portion of the interval holding body 125 extending in a direction orthogonal to the transfer direction of the sewing object 10 and has a high inclined surface 126a on the second main plate portion 22 side.
The space | interval holding | maintenance body 125 is provided with the rod-shaped body 125a which has a length direction, and the contact part 125b at the front-end | tip of the rod-shaped body 125a.
The interval holding body 125 can transfer the sewing object 10 along the transfer direction while maintaining the interval between the second main plate portion 22 and the fourth main plate portion 26 which are set up in the vertical direction and face each other at an equal interval. Thus, it is arranged in parallel in the transfer direction of the sewing product 10 at an appropriate interval. That is, in the sewing object 10, the fourth main plate portion 26 is in contact with the columnar guide body 122, and the second main plate portion 22 is in contact with the contact portion 125b of the interval holding body 125, so that the optimal posture is maintained. It is transferred as it is.

As shown in FIG. 6, the support guide body 124 is fixed by a fixing member 124 a on the sewing machine 60 side.
Immediately before the sewing machine 60, a guide plate 128 for feeding the part 16 to be sewn into the part 62 supplied by the sewing machine 60 is provided.
The guide plate 128 is configured such that the upstream side is wide open and the space between the guide plate 128 and the support guide body 124 becomes narrower toward the downstream side.

As shown in FIG. 6, the guide part 120 includes a joining guide part 130 provided at an inlet for transferring the sewing machine 60.
The upper surface of the support guide body 124 is continuous at substantially the same height as the upper surface of the joining guide portion 130 provided in front of the stitching position.
The upper surface of the columnar guide body 122 is continuous at substantially the same height as the guide gap portion 130a provided at a position away from the upper surface of the joining guide portion 130 provided before the stitching position. .
In the joining guide portion 130, a portion 16 where the main plate portion 12 of the sewing object 10 is sewn is located on the upper surface, and a seam allowance portion 18 of the sewing material 10 is located on the lower surface, so that the portion 62 to be fed is covered. The sewing product 10 is configured to be fed.
The joining guide part 130 includes a plate-like part that is thick on the upstream side and thins toward the downstream side.
The plate-like portion of the joining guide portion 130 has an inclined surface whose upper surface is lowered as it goes from upstream to downstream, and a slit-like guide gap portion extending in the horizontal direction at the same height from upstream to downstream below the lower surface. 130a.
The joining guide portion 130 guides the upper surface of the plate-like portion to the stitching position by sliding the first main plate portion 20, and also guides the guide gap 130 a formed in the region below the lower surface of the plate-like portion. The part 18 moves and guides to the stitching position.
Thus, the portion 16 to be sewn and the seam allowance 18 that have been fed at a distance in the vertical direction by the joining guide portion 130 come into contact with each other at the portion 62 supplied by the sewing machine 60, and the sewing needle mechanism 68 and the looper mechanism 70 The stitched portion 40 is sewn with the stitched wire 50.

The folding station 106 includes a sewing product placing portion 132 that places the work 10 from the front end to the rear end so as to be transportable.
The sewing object placing portion 132 is located on the upstream side when the sewing object 10 is transferred on the gantry 102 and has a roll 134 for transferring the sewing object 10 while rotating.
The sewing product 10 has the fourth main plate portion 26 bent upward at the third fold 34 and vertically set, the second main plate portion 22 is bent upward at the second fold 32 and set vertically, and the first main plate portion 20 is set vertically. The first fold 30 is bent toward the front side to be horizontal.
At this time, the 3rd main board part 24 is mounted on the roll 134 of the to-be-sewn material mounting part 132, and the to-be-sewn material 10 moves downstream from the upstream.
The first projecting portion 28A and the second projecting portion 38A are not bent at the fifth fold line 28C and the sixth fold line 38C, and are on the front side (upper side) and the rear side (lower side) on the same plane as the main plate part 12. It is extended. Accordingly, the first projecting portion 28A and the second projecting portion 38A are placed on the roll 134 of the sewing product placing portion 132 and moved from upstream to downstream.

The folding station 106 is located near the guide portion 120, on the surface side opposite to the surface of the workpiece 10 on which the guide portion 120 is located with the workpiece 10 interposed therebetween, A folding mechanism 140 is provided that folds toward the portion 16 to be sewn on the main plate portion 12 by the fold line 14 and overlaps the portion 16 to be sewn.
The folding mechanism 140 includes a folding bar 142 having a surface for overlaying the seam portion 18 of the first main plate portion 20 on the seam allowance portion 18 that is bent toward the inner surface of the first main plate portion 20 of the workpiece 10. And a folding actuator 144 for actuating the folding rod 142 in the suturing portion 40 so as to freely advance and retract.
The folding rod 142 is a rod-shaped body having an L-shaped cross section. The folding bar 142 extends from the upstream side to the downstream side of the transfer path to which the workpiece 10 is transferred, and is fixed horizontally above the gantry 102.
The horizontal surface portion 142 a of the folding rod 142 is located near the portion 16 and the seam allowance portion 18 to be sewn together of the sewing object 10 placed on the sewing object placement portion 132.
The vertical portion 142b of the folding rod 142 is connected to the movable rod of the folding actuator 144 and is configured to move the folding rod 142 in the horizontal direction.

The guide portion 120 is provided below the horizontal plane portion 142a of the folding rod 142, and the stitching portion 16 and the seam allowance portion 18 are overlapped with each other between the horizontal plane portion 142a of the folding rod 142 and the upper surface of the guide portion 120. The part 40 is inserted.
When the workpiece 10 moves from upstream to downstream, the state in which the portion 16 to be sewn and the seam allowance portion 18 are overlapped is overlapped between the horizontal surface portion 142a of the folding rod 142 and the guide portion 120. Move in state.

The folding stations 106 are provided on both sides in the transfer direction, are in contact with the outer surface of the workpiece 10 that is bent into a rectangular tube shape, the main plate portion 12 is bent into a rectangular tube shape, and the seam allowance portion 18 and the main plate portion 12 A transfer mechanism 160 is provided for transferring the sewing object 10 to the sewing station 108 while maintaining the posture in which the portion 16 to be stitched is overlapped.
The transfer mechanism 160 includes a first transfer belt conveyor 162 provided on the front side across the transfer path of the sewing object 10 and a second transfer belt conveyor 164 provided on the other side.
The distance between the first transfer belt conveyor 162 and the second transfer belt conveyor 164 is adjusted to match the distance between the second main plate portion 22 and the fourth main plate portion 26 of the main plate portion 12 facing the workpiece 10. 10 opposite to each other across the 10 transfer paths. The first transfer belt conveyor 162 and the second transfer belt conveyor 164 are provided in parallel with the transfer direction of the sewing product 10.

As shown in FIG. 7, the first transfer belt conveyor 162 includes a driven roller 166a provided on the upstream side of the sewing product 10, a main driving roller 166b provided on the downstream side, a driven roller 166a, and a main driving roller 166b. And a belt 168 having an annular flexibility spanned between them.
The driven roller 166a and the main driving roller 166b have their rotation shafts set up in the vertical direction, and the belt 168 circulates horizontally.
The belt 168 rotates horizontally in accordance with the rotation of the main driving roller 166b connected to the feed conveyor motor 170, and moves the workpiece 10 from upstream to downstream.
The belt 168 of the first transfer belt conveyor 162 and the belt 168 of the second transfer belt conveyor 164 are opposed to each other, and the second main plate portion 22 and the fourth main plate portion 26 of the workpiece 10 are moved from the front side and the other side. It is provided on the gantry 102 so as to face each other with an interval corresponding to the width of the sewing object 10 so that the sewing object 10 is moved while being sandwiched and pressed lightly.
The feed conveyor motor 170 is configured by an intermittent feed drive motor 242 that rotates in synchronization with the sewing machine 40 intermittently sewing the stitching portion 40 of the sewing object 10.

The belt 168 of the first transfer belt conveyor 162 and the belt 168 of the second transfer belt conveyor 164 of the transfer mechanism 160 have flat surfaces in contact with the surfaces of the second main plate portion 22 and the fourth main plate portion 26 of the workpiece 10. .
Further, the distance between the surface of the first transfer belt conveyor 162 of the transfer mechanism 160 where the belt 168 contacts the second main plate portion 22 and the surface of the transfer mechanism 160 where the belt 168 of the second transfer belt conveyor 164 contacts the fourth main plate portion 26. Is substantially the same as the width between the second main plate portion 22 and the fourth main plate portion 26 erected vertically of the sewing object 10.
Thus, when the sewing object 10 is sewn by the sewing machine 60, the sewing object 10 can be reliably transferred along the transfer path without being shaken and can be sewn by the sewing machine 60.
In particular, when the sewing portion 40 in which the portion 16 to be sewn and the seam allowance portion 18 are overlapped by the sewing machine 60, the sewing portion 40 can be transferred in parallel with the sewing line 42, so that the sewing portion 40 is accurately sewn. be able to.

The sewing station 108 is configured to intermittently sew a sewing portion 40 constituted by the seam allowance portion 18 and a portion 16 to be sewn of the main plate portion 12 with a sewing wire material 50, and is transferred from the sewing portion 60 and the sewing station 108. There is provided a sewing product placing portion 180 for placing the sewing product 10 from the front end to the rear end so as to be transportable.
The workpiece mounting portion 180 is located on the upstream side when the workpiece 10 is transferred on the gantry 102 and includes a roll 182 for transferring the workpiece 10 while rotating the workpiece 10.

The sewing station 108 is in contact with the outer surface of the sewing object 10 while maintaining the posture in which the main plate portion 12 is bent into a rectangular tube shape and the seam allowance portion 18 and the portion 16 to be sewn together are overlapped. An intermittent feed mechanism 190 for transferring the workpiece 10 in synchronization with the intermittent sewing operation of the sewing machine 60 is provided.
The intermittent feed mechanism 190 includes a first intermittent feed conveyor 192, a second intermittent feed conveyor 194, and a suction conveyor 210 provided above the gantry 102.
The first intermittent feed conveyor 192 is provided on the front side so as to face the lower surface of the fourth main plate portion 26 of the workpiece 10 to be transferred, and the second intermittent feed conveyor 194 is transferred on the other side. It is provided to face the lower surface of the second main plate portion 22 of the workpiece 10 to be transferred.
The suction conveyor 210 is provided above the second intermittent feed conveyor 194 on the other side, and is provided to face the upper side surface of the second main plate portion 22 of the workpiece 10 to be transferred.

The interval between the first intermittent feed conveyor 192 and the second intermittent feed conveyor 194 is adjusted to the interval between the second main plate portion 22 and the fourth main plate portion 26 of the main plate portion 12 facing the workpiece 10 to be sewn 10. Are provided opposite to each other across the transfer path.
Moreover, the 1st intermittent feed conveyor 192 and the 2nd intermittent feed conveyor 194 are provided in parallel with the transfer direction of the to-be-sewn material 10.
The first intermittent feed conveyor 192 is provided in a straight line with the belt 168 aligned with the first belt 198 of the first transfer belt conveyor 162 of the folding station 106, and the second intermittent feed conveyor 194 has the belt 168 of the folding station. The second transfer belt conveyor 164 of 106 is provided in a straight line along with the second belt 204.

As shown in FIG. 7, the first intermittent feed conveyor 192 provided on the front side across the transfer path of the sewing product 10 is provided with a driven roller 196a provided on the upstream side of the sewing product 10 and on the downstream side. The main driving roller 196b is provided, and a first belt 198 having an annular flexibility is provided between the driven roller 196a and the main driving roller 196b.
The rotation axis of the driven roller 196a and the main driving roller 196b is set up in the vertical direction, and the first belt 198 circulates horizontally.
The first belt 198 rotates between the driven roller 196a and the main driving roller 196b in accordance with the rotation of the main driving roller 196b connected to the first feed conveyor motor 200, and moves the sewing product 10 from upstream to downstream. Move towards.
The first feed conveyor motor 200 is configured by a servo motor that rotates in synchronization with intermittently sewing the stitching portion 40 of the workpiece 10 by the sewing machine 60.
The second intermittent feed conveyor 194 provided on the other side across the transfer path of the sewing product 10 includes a driven roller 202a provided on the upstream side of the sewing product 10 and a main driving roller 202b provided on the downstream side. The second belt 204 having an annular flexibility is provided between the driven roller 202a and the main driving roller 202b.
The driven roller 202a and the main driving roller 202b have their rotation shafts set up in the vertical direction, and the second belt 204 circulates horizontally.
The second belt 204 circulates between the driven roller 202a and the main driving roller 202b in accordance with the rotation of the main driving roller 202b connected to the intermittent feed driving motor 242 constituting the feed conveyor motor, so that the workpiece 10 is Move from upstream to downstream.
The intermittent feed drive motor 242 is provided in the drive source 240 that drives the intermittent feed mechanism 190, and is constituted by a servo motor.
The first belt 198 of the first intermittent feed conveyor 192 and the second belt 204 of the second intermittent feed conveyor 194 are opposed to each other, and the second main plate portion 22 and the fourth main plate portion 26 of the workpiece 10 are on the near side. Are provided on the gantry 102 so as to face each other at an interval corresponding to the width of the sewing object 10 so that the sewing object 10 is moved while being pressed lightly inward.

The surfaces of the first intermittent feed conveyor 192 and the second intermittent feed conveyor 194 of the intermittent feed mechanism 190 that are in contact with the surfaces of the second main plate portion 22 and the fourth main plate portion 26 of the workpiece 10 are flat.
In addition, between the surface where the first intermittent feed conveyor 192 of the intermittent feed mechanism 190 contacts the second main plate portion 22 and the surface where the second intermittent feed conveyor 194 of the first intermittent feed conveyor 190 contacts the fourth main plate portion 26, The width between the second main plate portion 22 and the fourth main plate portion 26 of the workpiece 10 is substantially the same.
Thus, when the sewing object 10 is sewn by the sewing machine 60, the sewing object 10 can be reliably transferred and sewed by the sewing machine 60 without shaking. In particular, when the sewing portion 40 in which the portion 16 to be sewn and the seam allowance portion 18 are overlapped by the sewing machine 60, the sewing portion 40 can be transferred in parallel with the sewing line 42, so that the sewing portion 40 is accurately sewn. be able to.

The suction conveyor 210 of the intermittent feed mechanism 190 has a plurality of suction lines continuously arranged along the stitching line 42 so that the suction holes 214 of the plurality of suction chambers 212 are parallel to the workpiece 10. A chamber 212 is provided.
The suction chamber 212 includes a first suction chamber 212A, a second suction chamber 212B, a third suction chamber 212C, and a fourth suction chamber 212D.
The first suction chamber 212A includes a first suction hole 214A, the second suction chamber 212B includes a second suction hole 214B, the third suction chamber 212C includes a third suction hole 214C, and a fourth suction chamber 212D. Includes a fourth suction hole 214D.
The suction conveyor 210 has a suction hole 214 continuous with the suction hole 214, and the suction conveyor 214 is arranged in parallel so that the workpiece 10 is intermittently transferred while adsorbing to the outer surface of the workpiece 10. On the outer side, an intermittent feeding belt 216 formed so as to go around the suction chamber 212 is provided.
In a plurality of suction chambers (first suction chamber 212A, second suction chamber 212B, third suction chamber 212C, and fourth suction chamber 212D) connected to the suction device 220, the stitching portion 40 of the sewing object 10 is the sewing machine 60. Thus, the workpiece 10 is transferred by being sequentially sucked from the suction holes 214 in accordance with the timing of sewing with the suture wire 50.

The suction chamber 212 is connected to the hose 222 extending from the suction device 220 on the upper wall thereof, and the hose 222 is branched on the way to the first suction chamber 212A, the second suction chamber 212B, the third suction chamber 212C, and the fourth. The suction chambers 212D are connected to each other and communicated so as to be sucked from the respective suction chambers 212.

A shutter 224 is provided between the hose 222 and the suction chamber 212.
The shutter 224 includes a first shutter 224A provided in the first suction chamber 212A, a second shutter 224B provided in the second suction chamber 212B, a third shutter 224C provided in the third suction chamber 212C, And a fourth shutter 224D provided in the four suction chambers 212D.
The shutter 224 is provided between the hose 222 and the suction chamber 212 so that the shutter 224 can be moved forward and backward by the open / close cylinder 226.
The shutter 224 includes a first opening / closing cylinder 226A connected to the first shutter 224A, a second opening / closing cylinder 226B connected to the second shutter 224B, and a third opening / closing cylinder 226C connected to the third shutter 224C. And a fourth open / close cylinder 226D connected to the fourth shutter 224D.
The shutter 224 is connected to a mechanical valve 228 provided on the transfer path side of the sewing product 10 in the suction chamber 212 of the suction conveyor 210 and operates by detecting the sewing product 10 of the mechanical valve 228.

The mechanical valve 228 is provided above the first mechanical valve 228A provided above the first suction chamber 212A, the second mechanical valve 228B provided above the second suction chamber 212B, and the third suction chamber 212C. The third mechanical valve 228C and the fourth mechanical valve 228D provided on the upper part of the fourth suction chamber 212D are provided.

The shutter 224 is normally closed and is not sucked by the suction device 220.
When the workpiece 10 is sent from upstream, that is, from the folding station 106 and reaches the position of the mechanical valve 228, the lever of the mechanical valve 228 is hit by the workpiece 10, and the opening / closing cylinder 226 is operated to open the shutter 224. The suction chamber 212 is sucked.
First, the first mechanical valve 228A on the upstream side is actuated, then the second mechanical valve 228B on the downstream side is actuated as the workpiece 10 is moved, and then the third mechanical valve 228A is further arranged on the downstream side as the workpiece 10 is moved. The mechanical valve 228 </ b> C is operated, and then the fourth mechanical valve 228 </ b> D further downstream is operated as the workpiece 10 is moved.
Then, the first opening / closing cylinder 226A is operated by the operation of the first mechanical valve 228A to open the first shutter 224A.
Next, the second opening / closing cylinder 226B is operated by the operation of the second mechanical valve 228B to open the second shutter 224B.
Next, the third opening / closing cylinder 226C is operated by the operation of the third mechanical valve 228C to open the third shutter 224C.
Next, the fourth opening / closing cylinder 226D is operated by the operation of the fourth mechanical valve 228D, and opens the fourth shutter 224D.
After the sewing object 10 passes, the shutter 224 is closed again.

The intermittent feeding belt 216 of the suction conveyor 210 is stretched between a driven roller 230 provided on the upstream side and a main driving roller 232 provided on the downstream side, and the rotation of the main driving roller 232 causes the suction chamber 212 to rotate. It circulates around the suction chamber 212 in close contact with the suction hole 214.
The intermittent feed belt 216 is rotated by an intermittent feed drive motor 242 composed of a rotating servo motor in synchronization with the sewing unit 60 intermittently sewing the stitched portion 40 of the sewing object 10 with the sewing machine 60.

Furthermore, the suction conveyor 210 of the intermittent feed mechanism 190 has a flat surface on the second main plate portion 22 side of the workpiece 10 and is first sucked sequentially in synchronism with the sewing timing when sewing is performed by the sewing machine 60. The workpiece 10 is sequentially transferred intermittently while being sequentially sucked by the suction chamber 212A, the second suction chamber 212B, the third suction chamber 212C, and the fourth suction chamber 212D.
Thus, when the workpiece 10 is sewn by the sewing machine 60, the workpiece 10 can be reliably and intermittently transferred while being sucked.

The drive source 240 that drives the intermittent feed mechanism 190 operates the main driving roller 196b of the first intermittent feeding conveyor 192 and the main driving roller 232 of the suction conveyor 210 in synchronization with the intermittent operation of sewing the sewing product 10 of the sewing machine 60. It is configured as follows.

The drive source 240 includes an intermittent feed drive motor 242, a first gear 244 attached to the drive shaft of the intermittent feed drive motor 242, a second gear 246 that meshes with the first gear 244, and a second gear 246. And a third gear 248 fixed to the first rotating shaft 260 and a fourth gear 250 meshing with the third gear 248.
Further, the drive source 240 includes a fifth gear 252 attached to the first rotating shaft 260 to which the second gear 246 is fixed and a second rotating shaft to which the fourth gear 250 is fixed above the second gear 246. And a sixth gear 254 that is attached to the H.262 and meshes with the fifth gear 252.

The worm gear 270 is fixed to the second rotating shaft 262 between the fourth gear 250 and the sixth gear 254 of the second rotating shaft 262.
The worm gear 270 meshes with a worm wheel 272 fixed to a third rotating shaft 264 extending in a direction orthogonal to the first rotating shaft 260 and the second rotating shaft 262.
The second rotating shaft 262 is provided with a first clutch 280 for intermittently transmitting the rotational force of the fourth gear 250 to the second rotating shaft 262.
The second rotating shaft 262 is provided with a second clutch 282 for intermittently transmitting the rotational force of the sixth gear 254 to the second rotating shaft 262.
The third rotating shaft 264 is connected to the main driving roller 196 b of the first intermittent feed conveyor 192 and the main driving roller 232 of the suction conveyor 210.

The third gear 248 and the fourth gear 250 are engaged by the operation of the first clutch 280.
The third gear 248 and the fourth gear 250 are formed at a ratio of the number of teeth and the diameter of 1: 1.
In this embodiment, the third gear 248 and the fourth gear 250 rotate to rotate the third rotating shaft 264 so as to intermittently feed the workpiece 10 at a pitch of 15 mm. When the sewing machine 60 sews 20 or 21 times and finishes it, the first clutch 280 is disengaged and the rotation of the third rotating shaft 264 is stopped.
The fifth gear 252 and the sixth gear 254 are engaged by the operation of the second clutch 282.
The fifth gear 252 and the sixth gear 254 are formed with a ratio of the number of teeth and a diameter of 1: 2.
In this embodiment, the fifth gear 252 and the sixth gear 254 rotate to rotate the third rotating shaft 264 so as to intermittently feed the workpiece 10 at a pitch of 7.5 mm. When the sewing machine 60 sews once or twice, the second clutch 282 is disengaged and the rotation of the third rotating shaft 264 is stopped.
The third gear 248 and the fourth gear 250 are sewn at a normal pitch, and the fifth gear 252 and the sixth gear 254 are sewn with a so-called condensed stitch at the end (so-called condensation stitch). It is configured with different diameters.

Further, the drive source 240 and the intermittent feed mechanism 190 will be described below mainly based on FIGS.
The first gear 244 is provided with a missing tooth portion 244a, and the teeth 244b of the first gear 244 mesh with the teeth of the second gear 246 one after another. The first gear 244 imparts rotational and stationary motions to the second gear 246 every rotation.
When the second gear 246 is stationary, the rotation of the third rotating shaft 264 stops, and accordingly, the intermittent feeding belt 216 of the suction conveyor 210, the first intermittent feeding conveyor 192, and the first intermittent feeding conveyor 194 of the first. The circular motion of the belt 198 is stopped, and the transfer of the sewing product 10 is temporarily stopped.
As the first gear 244 further rotates, the second gear 246 meshes with the teeth 244b of the first gear 244, and the stationary second gear 246 rotates to rotate the third rotation shaft 264. Thus, the first belt 198 of the first intermittent feed conveyor 192 and the second intermittent feed conveyor 194 resumes the circular motion and starts the transfer of the sewing product 10.
When the missing tooth portion 244a of the first gear 244 and the second gear 246 are aligned, the rotation of the second gear 246 is stopped and the rotation of the third rotating shaft 264 is stopped.
Along with this, the rotation of the belt 216 for intermittent feeding of the suction conveyor 210, the first belt 198 of the first intermittent feeding conveyor 192 and the second intermittent feeding conveyor 194 stops, and the transfer of the sewing product 10 stops. At that time, the sewing machine 60 sews the sewing object 10.
When a predetermined distance is sewn, the teeth 244b of the first gear 244 mesh with the second gear 246. When the teeth 244b of the first gear 244 mesh with the second gear 246, the rotation of the second gear 246 resumes and the rotation of the third rotation shaft 264 resumes.
Accordingly, the belt 216 for intermittent feeding of the suction conveyor 210, the first belt 198 of the first intermittent feeding conveyor 192, and the first belt 198 of the second intermittent feeding conveyor 194 start, and the workpiece 10 starts to be transferred.
At that time, the sewing machine 60 does not sew the workpiece 10.
The drive source 240 and the intermittent feed mechanism 190 are connected to the control panel 400, and the first clutch 280 and the second clutch 282 are switched between “ON” and “OFF” according to a signal from the control panel 400.
The third gear 248 and the fourth gear 250 mesh with each other when the first clutch 280 is “engaged” to rotate the second rotating shaft 262, and when the second clutch 282 is “engaged”, the fifth gear 252 and the second gear 252 are engaged. The 6 gears 254 mesh with each other and the second rotation shaft 262 rotates.

The folding station 106 and the sewing station 108 are a sewing product presence / absence detection sensor 300 that detects the presence or absence of the sewing product 10, an arrival detection sensor 310 that detects that the sewing product 10 has arrived at a sewing position, and a sewing length. A stitching distance detection sensor 320 for detecting the position of the sewn product for checking the sewing is provided.
The sewing object presence / absence detection sensor 300 includes a first sewing object presence / absence detection sensor 300a that detects the presence or absence of the sewing object 10 at the folding station 106, and a second object that detects the presence or absence of the sewing object 10 at the sewing station 108. And a sewing product presence / absence detection sensor 300b.
The arrival detection sensor 310 detects a arrival at the standby position arrival detection sensor 310a for detecting that the sewing object 10 has arrived at a position where the sewing object 10 is close to the sewing station 108, and detects that the sewing object 10 has arrived immediately before sewing. And a suture position arrival detection sensor 310b.
The stitching distance detection sensor 320 includes a half stitching completion sensor 320a that detects that stitching has been performed to half the length of the stitching portion 40 of the sewing object 10 and the stitching of the sewing object 10. Detecting that sewing is performed up to a position within 150 mm from the rear end of the sewing product 10 in the length direction of the portion 40, and informing the timing of moving the sewing product 10 to be sewn next to the sewing position; And a movement start position detection sensor 320b for stitching.
As the sewing object presence / absence detection sensor 300, the arrival detection sensor 310, and the stitching distance detection sensor 320, optical sensors that irradiate the sewing object 10 with light and detect reflected light thereof are used.

The folding station 106 and the sewing station 108 are provided with a stop device 330 that stops the movement of the sewing object 10 in the transfer path of the sewing object 10.
The stop device 330 includes a first movement stop 332 for temporarily stopping the movement of the sewing object 10 before being guided to the guide unit 120 at the folding station 106, and the main plate 12 at the sewing needle position at the sewing station 108. A second movement stop device 334 for once stopping the movement of the sewing product 10 when the leading edge arrives.
The sewing object presence / absence detection sensor 300, the arrival detection sensor 310, and the stitching distance detection sensor 320 are the front end (front end) of the first protrusion 28A of the sewing object 10, and the front end (rear side) of the second protrusion 38A of the sewing object 10. End), the end of the first separating portion 28B on the fold line 14 side, and the tip (front end) and tip (rear end) of the seam allowance 18 are transmitted to the control panel 400.

The folding actuator 144, the feed conveyor motor 170, the first feed conveyor motor 200, the opening / closing cylinder 226, the mechanical valve 228, and the intermittent feed drive motor 242 are connected to the control panel 400.
The sewing object presence / absence detection sensor 300, arrival detection sensor 310, and stitching distance detection sensor 320 are connected to the control panel 400.
The control panel 400 includes a central processing unit (CPU), and is intermittently operated based on signals from the mechanical valve 228, the sewing object presence / absence detection sensor 300, the arrival detection sensor 310, and the stitching distance detection sensor 320 connected thereto. , An instruction signal such as an operation timing is transmitted to the folding actuator 144, the feed conveyor motor 170, the first feed conveyor motor 200, and the opening / closing cylinder 226.

As shown in FIGS. 17 to 19, the sewing machine 60 sews a seam allowance portion 18 connected to the fourth main plate portion 26 of the cardboard box, which is the workpiece 10, and a portion 16 to be sewn together of the first main plate portion 20. Sewing machine 60.
The sewing machine 60 has a portion 62 for supplying the sewing product 10, a sewing needle portion 64 for sewing the sewing product 10, and a sewing needle portion 64 in a state where the seam allowance 18 is disposed at a position corresponding to the sewing portion 16 of the sewing product 10. And a discharge portion 66 for feeding out the sewn product 10 that has been sewn together.
The sewing needle portion 64 includes a sewing needle mechanism 68 and a looper mechanism 70 for sewing, and a power source such as a motor (not shown) (controlled by the control panel 400 in FIG. 1).

The supply portion 62 includes a transfer roller 76 that transfers the sewing object 10 before sewing to the sewing needle portion 64 via the joint guide portion 130 between the seam allowance portion 18 and the portion 16 to be sewn.

As shown in FIGS. 8 and 18, the sewing machine 60 is a pair of upper and lower needles respectively disposed on the upper and lower surfaces of the sewing object 10 on the upstream side (front side) of the sewing needle mechanism 68 that constitutes the feeding portion 62. The front upper puller 72a and the front needle lower puller 72b, and a pair of upper and lower needles respectively disposed on the upper and lower surfaces of the sewing product 10 on the downstream side (rear side) of the sewing needle mechanism 68 constituting the discharge portion 66. An upper puller 74a and a lower needle puller 74b are provided.
The article to be sewn 10 is sandwiched between the needle front upper puller 72a and the needle rear upper puller 74a, and the needle front lower puller 72b and the needle rear lower puller 74b, and the rear side of the sewing needle mechanism 68. It is transferred to.
The sewing machine 60 is connected to the control panel 400, and the control panel 400 is configured to control the intermittent feeding mechanism 190 by the control panel 400 in synchronism with the reciprocating movement of the sewing machine needle mechanism 68 when the workpiece 10 is sewn. ing.
The sewing machine 60 is provided between a needle front upper puller 72a and a needle front lower puller 72b that rotate in opposite directions in synchronism with the reciprocation of the sewing needle mechanism 68 during sewing of the workpiece 10, and a needle rear upper puller 74a. The sewing product 10 can be held between the lower puller 74 b after the needle and can be intermittently transferred to the rear side of the sewing needle mechanism 68.

As shown in FIG. 19, the sewing machine 60 is fixed to a sewing machine moving device 80 provided on the front side of the gantry 102.
The sewing machine moving device 80 is provided between a base 82 provided with wheels, a first vertical movement portion 84 provided on the upper portion of the base 82, and a base 82 below the first vertical movement portion 84. And a second vertical movement portion 86.
The first vertical movement portion 84 is provided with a sewing machine 60, and is extended to the second vertical movement portion 86 so as to freely advance and retract.
The base 82 is placed so as to move on a rail 88 extending inward from the near side of the gantry 102.
Thus, the height position of the sewing machine 60 can be changed by moving the first vertical movement portion 84 up and down in accordance with the guide portion 120 of the workpiece transfer device 100. In addition, the horizontal position can be changed by horizontally moving the base 82 in accordance with the guide portion 120 of the workpiece transfer device 100.

Next, a method for sewing the sewing product 10 by the sewing product transfer device 100 will be described with reference to FIGS.
The workpiece 10 is placed on the workpiece supply station 104 with the stitch margin 18 on the front side. The first sewing product presence / absence detection sensor 300 a detects the presence of the sewing product 10 and transmits a presence signal to the control panel 400.
The sewing product 10 has the fourth main plate portion 26 bent upward at the third fold 34 and vertically set, the second main plate portion 22 is bent upward at the second fold 32 and set vertically, and the first main plate portion 20 is set vertically. The first fold 30 is bent toward the front side to be horizontal.
At this time, the third main plate portion 24 is placed horizontally on the workpiece supply station 104. (Sewing product supply step)
Next, at the fourth crease 36, the seam allowance 18 is folded to the other side and positioned on the lower surface of the portion 16 to be sewn on the first main plate 20.
At this time, the free end edge of the first main plate portion 20 extends along the fourth fold line 36, and the suture portion 40 and the suture line 42 that sews the suture portion 40 are parallel to the transfer direction of the sewing product 10.

(Folding step for sewing)
Next, the tip of the sewing product 10 formed in the shape of a square cross section is fed into the sewing product mounting portion 132 of the downstream folding station 106.
The workpiece 10 is temporarily stopped by the first movement stopper 332.
At this time, the sewing object presence / absence detection sensor 300 detects the presence of the sewing object 10 and sends a signal notifying the control panel 400 of the presence of the sewing object 10. The control panel 400 sends a transfer signal instructing the feed conveyor motor 170 of the transfer mechanism 160 to rotate.
At this time, the sewing object 10 has the inner side of the stitching portion 40 along the outer peripheral surface of the guide portion 120 and is overlapped with the lower surface of the portion 16 where the seam allowance portion 18 is sewn with the folding rod 142 and is sewn. 18 is fed to the folding mechanism 140. The sewing product 10 maintains the overall posture so that the fold line 14 of the sewing product 10 is parallel to the transfer direction of the sewing product 10.
When the sewing product 10 has been transferred by a predetermined amount, the arrival detection sensor 310 (standby position arrival detection sensor 310a) detects that the sewing product 10 has arrived immediately before the sewing station 108, and the control panel 400 receives the sewing product. The control panel 400 transmits a signal to wait for the feed conveyor motor 170 to stop the rotational drive of the feed conveyor motor 170 and wait. At this time, the preceding sewing product 10 is fed into the sewing station 108 and stitched in half by the sewing machine 60.

(Sewing work sewing step)
Based on the detection signal of the movement start position detection sensor 320b that detects that the sewing object 10 previously fed to the sewing station 108 has been stitched to the remaining 150 mm by the sewing machine 60, the control panel 400 waits for the sewing material to be on standby. Send a signal to start moving the object 10.
Then, the transfer mechanism 160 of the folding station 106 sends the workpiece 10 downstream by the rotational drive of the feed conveyor motor 170 and sends it to the downstream sewing station 108.

Further, when the sewing object 10 is sent downstream by the transfer mechanism 160, the sewing object 10 reaches the sewing start position (sewing needle part 64) at the sewing station 108 by the arrival detection sensor 310 (the sewing position arrival detection sensor 310b). Detect that.

Here, the control panel 400 sends an instruction signal to start sewing by the sewing needle mechanism 68 and the looper mechanism 70 of the sewing machine 60 to the sewing machine 60 so that the sewing margin portion 18 is stitched by the sewing machine 60.
At this time, the control panel 400 sends a signal for intermittent feed of the workpiece 10 to the first intermittent feed conveyor 192. That is, the first intermittent feed conveyor 192 and the second intermittent feed conveyor 194 are rotated and the first feed conveyor motor 200 and the second feed conveyor motor 206 are rotated and the suction conveyor 210 is rotated and driven. A signal is sent to the drive motor 242.

When the stitching is completed by half by the sewing machine 60, the movement amount of the sewing object 10 is detected by the half stitching completion sensor 320a, and a stitching distance detection signal is transmitted to the control panel 400. The control panel 400 subsequently sends a signal to the feed conveyor motor 170 to transfer the subsequent workpiece 10 that has been transferred and stopped by the stop device 330 (first movement stop 332), and the feed conveyor motor 170 is Rotation is driven to start the transfer of the sewing product 10.
The subsequent sewing product 10 moves until it is detected by the standby position arrival detection sensor 310a. In response to a signal from the standby position arrival detection sensor 310a that detects the arrival of the subsequent sewing product 10, the control panel 400 sends a signal for stopping the transfer to the feed conveyor motor 170 to stop the transfer of the sewing product 10 and waits. Let
Thereafter, as described above, the control panel 400 uses the detection signal of the movement start position detection sensor 320b that detects that the sewing object 10 previously sent to the stitching station 108 is stitched to the remaining 150 mm by the sewing machine 60. Then, a signal for starting the movement of the workpiece 10 that is waiting is sent, and the sewing needle portion 64 is sewn.

The sewing product 10 sewn by the sewing machine 60 is discharged to the discharge station 110. The third sewing product presence / absence detection sensor 300 c in the discharge station 110 detects the presence of the sewing product 10 and transmits a presence signal to the control panel 400.
The control panel 400 transmits a carry-out signal to a carry machine (not shown) provided in the sewing product 10 to carry it out.

The present invention can be variously modified without being limited to the above embodiment.
For example, as shown in FIG. 22, the columnar guide body 122 and the support guide body 124 constituting the guide portion 120 can be moved up and down by a vertical movement mechanism having a handle so as to correspond to the size of the sewing object 10. It may be.
Further, as shown in FIG. 23, the position of the guide unit 120 may be changed by changing the configuration of the sewing machine 60.

In the above-described embodiment, the third gear 248 and the fourth gear 250 are configured to be engaged by the operation of the first clutch 280 and stitched at a normal pitch.
In the above-described embodiment, the fifth gear 252 and the sixth gear 254 are configured to be engaged with each other by the operation of the first clutch 280 and stitched by so-called condensation stitching at the end (so-called condensation stitching).
However, instead of changing the number of teeth and the diameters of the third gear 248 and the fourth gear 250 and the fifth gear 252 and the sixth gear 254 to change to the normal pitch and condensation sewing, the intermittent feed drive motor 242 is used. Alternatively, a servo motor may be used to control the rotational movement of the intermittent feed drive motor 242 based on a control signal from the control panel 400 to change to normal pitch and condensed stitching.

In the embodiment, the drive source 240 includes the intermittent feed drive motor 242, the first gear 244 attached to the drive shaft of the intermittent feed drive motor 242, and the second gear 246 meshing with the first gear 244. The third gear 248 is fixed to the first rotating shaft 260 to which the second gear 246 is fixed, and the fourth gear 250 is engaged with the third gear 248.
Further, the drive source 240 includes a fifth gear 252 attached to the first rotating shaft 260 to which the second gear 246 is fixed and a second rotating shaft to which the fourth gear 250 is fixed above the second gear 246. And a sixth gear 254 that is attached to the H.262 and meshes with the fifth gear 252.
The first gear 244 is provided with a missing tooth portion 244a, and the teeth 244b of the first gear 244 mesh with the teeth of the second gear 246 one after another. The first gear 244 imparts rotational and stationary motions to the second gear 246 every rotation.
When the second gear 246 is stationary, the rotation of the third rotating shaft 264 stops and the transfer of the sewing object 10 is temporarily stopped. At that time, the sewing machine 60 sews the sewing object 10.
When a predetermined distance is sewn, the teeth 244b of the first gear 244 and the second gear 246 mesh. When the teeth 244b of the first gear 244 mesh with the second gear 246, the rotation of the second gear 246 resumes and the rotation of the third rotation shaft 264 resumes.
The transfer of the sewing object 10 starts, and the sewing machine 60 does not sew the sewing object 10 at that time.
However, the first gear 244 is a gear provided with the missing tooth portion 244a and the tooth 244b, and does not give the second gear 246 rotational and stationary movements, but uses a servo motor as the intermittent feed drive motor 242 to control the control panel. Based on the control signal from 400, the rotational movement of the first gear 244 may be controlled to give the second gear 246 rotational and stationary movements.

The sewing object transfer device according to the present invention can be used to sew other plate-like objects in addition to sewing a cardboard box.

DESCRIPTION OF SYMBOLS 10 To-be-sewn product 12 Main board part 14 Fold 16 The site | part to sew 18 The seam allowance part 20 1st main board part 22 2nd main board part 24 3rd main board part 26 4th main board part 28A 1st protrusion part 28B 1st separation part 28C 5th crease | fold 30 First fold line 32 Second fold line 34 Third fold line 36 Fourth fold line 38A Second projecting part 38B Second separation part 38C Sixth fold line 40 Suture part 42 Suture line 50 Suture line material 60 Sewing machine 62 Supply part 64 Sewing needle part 66 Discharge site 68 Sewing needle mechanism 70 Looper mechanism 72a Needle front upper puller 72b Needle lower lower puller 74a Needle rear upper puller 74b Needle rear lower puller 76 Transfer roller 80 Sewing machine moving device 82 Base 84 First vertical movement part 86 Second vertical movement Part 88 Rail 100 Sewing material transfer device 102 Base 10 Workpiece supply station 106 folding station 108 stitching station 110 ejection station 112 roll (the workpiece supply station)
DESCRIPTION OF SYMBOLS 120 Guide part 122 Columnar guide body 122a Joining surface 124 Support guide body 124a Fixing member 125 Space | interval holding body 125a Bar-shaped body 125b Contact part 126 Spacer 126a Inclined surface 128 Guide plate 130 Joining guide part 130a Guide gap part 132 Placement of sewing product Part 134 Roll (for folding station)
140 Folding mechanism 142 Folding rod 142a Horizontal plane part 142b Vertical part 144 Folding actuator 160 Transfer mechanism (of folding station)
162 1st transfer belt conveyor 164 2nd transfer belt conveyor 166a, 196a, 202a, 230 Driven roller 166b, 196b, 202b, 232 Driven roller 168 Belt 170 Feeding conveyor motor 180 Sewing product placing part (of stitching station)
182 roll (of stitching station)
190 Intermittent feed mechanism (for stitching station)
192 1st intermittent feed conveyor 194 2nd intermittent feed conveyor 198 1st belt 200 1st feed conveyor motor 204 2nd belt 206 2nd feed conveyor motor 210 Suction conveyor 212 Suction chamber 212A 1st suction chamber 212B 2nd suction chamber 212C 2nd 3 suction chamber 212D fourth suction chamber 214 suction hole 214A first suction hole 214B second suction hole 214C third suction hole 214D fourth suction hole 216 intermittent feeding belt 220 suction device 222 hose 224 shutter 224A first shutter 224B second Shutter 224C Third shutter 224D Fourth shutter 226 Opening / closing cylinder 226A First opening / closing cylinder 226B Second opening / closing cylinder 226C Third opening / closing cylinder 226D Fourth opening / closing cylinder 228 Mechanic Cull valve 228A 1st mechanical valve 228B 2nd mechanical valve 228C 3rd mechanical valve 228D 4th mechanical valve 240 Drive source 242 Intermittent feed drive motor 244 1st gear 244a Missing part 244b Teeth 246 2nd gear 248 3rd gear 250 4th Gear 252 Fifth gear 254 Sixth gear 260 First rotation shaft 262 Second rotation shaft 264 Third rotation shaft 270 Warm gear 272 Warm wheel 280 First clutch 282 Second clutch 300 Sewing product presence / absence detection sensor 300a First sewing product Presence detection sensor 300b Second sewing object presence detection sensor 300c Third sewing object presence detection sensor 310 Arrival detection sensor 310a Standby position arrival detection sensor 310b Sewing position arrival detection sensor 320 Sewing Range sensors 320a 2 minutes of 1 suture completion sensor 320b movement start position detecting sensor 330 stop device 332 first travel stop 334 second movement stop 400 control panel

Claims (8)

1. A transfer device for transferring a sewing product to a sewing machine for forming a square tube by sewing a large or long plate-shaped sewing product with a sewing wire,
   A folding station that folds a stitched workpiece by a crease to form a rectangular tube, and overlaps a seam portion formed at an end of the main plate portion with a portion to be sewn on the main plate portion;
   A suturing station that is connected to the folding station and stitches a suturing portion constituted by a seam portion and a stitched portion of the main plate portion along the suturing line with a suturing wire;
   The folding station is
   A guide portion that is located on the inner side of the stitching portion constituted by the stitching portion and the stitched portion of the main plate portion, and extends from the folding station to the stitching station along the stitching line of the stitching portion of the sewing product;
   Close to the guide portion, with the workpiece being interposed, located on the surface side opposite to the surface of the workpiece to be sewn, and facing the seam portion to the portion where the main plate portion is sewn by the crease A folding mechanism that folds and sews over the parts to be sewn together;
   A workpiece placing portion for placing the workpiece to be transportable over the whole; and
   Provided on both sides of the transfer direction, in contact with the outer surface of the workpiece to be bent into a square tube shape,
   Having a transfer mechanism for folding the main plate portion into a square tube shape and maintaining the posture in a state where the seam allowance portion and the portion of the main plate portion to be stitched are overlapped, and transferring the workpiece to the sewing station;
   The suturing station is
   A sewing unit that sews a stitched portion constituted by a stitching portion and a portion where the main plate portion is stitched together intermittently with a suture wire;
   A workpiece placing section for placing the workpiece transferred from the suturing station from the front end to the rear end so as to be transportable;
   Provided on at least one side of the transfer direction, in contact with the outer surface of the workpiece to be bent into a rectangular tube shape,
   Having a transfer mechanism for folding the main plate portion into a square tube shape and maintaining the posture in a state where the seam allowance portion and the portion of the main plate portion to be stitched are overlapped, and transferring the workpiece to the sewing station;
   Furthermore, the folding station and / or the stitching station are in contact with the outer surface of the sewing product while maintaining the posture in which the main plate portion is bent into a rectangular tube shape and the seam allowance portion and the portion where the main plate portion is stitched are overlapped. A workpiece transfer device provided with an intermittent feed mechanism for transferring the workpiece in synchronization with the intermittent sewing operation of the sewing machine portion.
2. The guide portion is formed by causing a first main plate portion of a sewing product and a fourth main plate portion separated from the first main plate portion to be substantially orthogonal to each other and bending a seam allowance portion provided continuously to the fourth main plate portion. 2. The article transfer device according to claim 1, which is a columnar body provided with a right-angled joining surface along the inner surface of the seam allowance part and the fourth main plate part in a state of being superimposed on the inner surface of the first main plate part. .
3. The folding mechanism includes a folding bar having a surface for superimposing a portion to be sewn on the first main plate portion on a sewing margin portion that is bent toward the inner surface of the first main plate portion of the workpiece, The sewing product transfer device according to claim 1, further comprising an actuator that operates the folding rod so as to be movable back and forth.
4. The folding station and stitching station are
   Sewing product presence / absence detection sensor for detecting the presence / absence of the sewing product, arrival detection sensor for detecting that the sewing product has arrived at the sewing position, and sewing for detecting the position of the sewing product for confirming the stitched length The sewing-object transfer apparatus in any one of Claim 1 thru | or 3 provided with at least 1 distance detection sensor.
5. The intermittent feeding mechanism includes a plurality of suction chambers continuously provided along a suture line so that suction holes of the plurality of suction chambers are parallel to each other to be sewn.
   A suction hole that is continuous with the suction hole is formed so as to circulate outside the parallel suction holes so that the sewing product is intermittently transferred while adsorbing to the outer surface of the sewing product. A belt for intermittent feeding,
   A plurality of suction chambers connected to the suction device are configured so as to transfer the sewing product by sequentially suctioning from the suction holes in accordance with the timing at which the stitching portion of the sewing product is sewn with the suture wire. The sewing product transfer device according to any one of claims 1 to 4.
6. The first transfer belt conveyor and the second transfer belt conveyor are formed in accordance with the interval between the main plates facing the workpiece, and are provided in parallel with the transfer direction of the workpiece.
   The 1st intermittent feed conveyor and the 2nd intermittent feed conveyor are formed according to the interval of the main plate part which a sewing thing counters, and were provided in parallel with the transfer direction of the sewing thing. The sewing product transfer apparatus according to claim 5.
7. The guide part has a support guide body and a columnar guide body having a length direction extending from the upstream to the downstream along the length direction along the transfer direction of the sewing product,
   The support guide body is located in a region on the inner surface side of the second main plate portion facing the workpiece,
   The columnar guide body is located on the side of the fourth main plate facing the workpiece, and is fixed to the support guide body,
   The support guide body positions the first main plate portion of the workpiece to be sewn on the upper surface side and transfers it from the upstream to the downstream stitching position, and the columnar guide body has a seam allowance portion and a fourth main plate portion on its joint surface. The sewing-material transfer device according to any one of claims 1 to 6, wherein the device is configured to transfer the sewing material from an upstream position to a downstream stitching position.
8. The guide part has a support guide body and a columnar guide body having a length direction extending from the upstream to the downstream along the length direction along the transfer direction of the sewing product,
   The upper surface of the support guide body is continuous at substantially the same height as the upper surface of the joint guide portion provided before the stitching position,
   The columnar guide body has an upper surface continuous at substantially the same height position as a guide gap portion provided at a position away from the upper surface of the joint guide portion provided before the stitching position. The to-be-sewn material transfer apparatus in any one of Claim thru | or 7.

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