JP5869939B2 - Bi-fold joining apparatus and bi-fold joining method - Google Patents

Description

  The present invention relates to a two-fold joining apparatus and a two-fold joining method suitable for welding flexible substrates.

  An undergarment in which the base material is stitched with a thread may irritate the skin of the person wearing the underwear by the thread protruding from the back of the base material. Therefore, a plurality of substrates are joined as follows using an adhesive instead of the yarn. That is, when the base material 203 as a material of the shorts 201 shown in FIG. 19 is folded back into two and the side portions 205 where the two-fold base materials 203 overlap are joined, the inner side of the side portions 205 of the base material 203 is thermally melted. A pre-applied adhesive is applied in advance, and the side portions 205 of the substrate 203 are pressed against each other using a press die heated by a heater. Immediately after the above-mentioned adhesive is melted by the heat of the heater, the press die is detached from the substrate 203, and the joining of the side portions 205 is completed after the adhesive is cured.

  However, the extremely flexible thin substrate 203 preferred as a material for the shorts 201 is easily bent. There is a problem that the work of joining the substrates 203 takes a lot of time.

  The following patent document discloses a technique in which a shirt is placed on a sleeve and the shirt is pressed by a pair of curved plate hot plates.

JP-A-8-141291 JP 2000-70597 A

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a two-fold joining apparatus and a two-fold joining method capable of quickly and easily joining base materials regardless of their materials.

The present invention has one end and the other end in the longitudinal direction, and in the range from the one end to the middle of the longitudinal direction, a pair of first edges are formed at both ends in the width direction orthogonal to the longitudinal direction, A pair of first edges is formed by folding a substrate formed with a pair of second edge portions at both ends in the width direction in the range from the other end to the middle in the longitudinal direction. The pair of second edges are overlapped with each other, and the pair of first edges is attached to the pair of first edges by a hot-melt adhesive applied to at least one of the first edge or the second edge of the substrate. A bi-fold joining apparatus for joining the pair of second edges, wherein the pair of first edges of the substrate are folded back inward in the width direction of the substrate, and the substrate is moved in the longitudinal direction. middle folded in two, the pair of first edges that are folded inward in the width direction of the green body Pressing the pair of second edges and matrix folding means for opposing the first edge width direction of the folded inwardly of the pair of the green body, and the pair of second edges, mutually in It is characterized by comprising pressing means and a heater for heating the adhesive to its melting temperature.

  Further, according to the present invention, the edge folding means is provided above a fixed plane member that receives between the pair of first edge portions of the substrate, and the substrate received by the fixed plane member, and is arranged in a longitudinal direction of the substrate. A pair of support frames extending to the fixed plane member, a pair of both side support members disposed on both sides in the width direction of the substrate with respect to the fixed planar member, and supporting the pair of first edges of the substrate in a horizontal posture, A first turning means for turning the pair of both side support members horizontally or facing the pair of support frames from above; and on both sides of the base material in the width direction with respect to the pair of support frames. A pair of both-side holding members arranged, and a second turning means for turning the pair of both-side holding members so as to keep a posture facing the pair of both-side support members, the second turning means comprising: The pair of both side holding members are paired with the pair of horizontal postures. By facing the side support members, the pair of first edge portions of the substrate are sandwiched between the pair of both side support members and the pair of both side support members, and the first rotating means is in the horizontal posture. In the process of rotating the pair of both-side support members to a posture facing the pair of support frames from above, the base material sandwiched between the pair of both-side support members and the pair of both-side support members The pair of first edge portions are folded back above the pair of support frames.

  In the present invention, the substrate folding means is adjacent to the fixed planar member and receives a space between a pair of second edges of the substrate in a horizontal posture, and the substrate with respect to the movable planar member. A pair of both side opening and closing members disposed on both sides in the width direction of the sheet and the pair of both side opening and closing members are moved forward and backward in the width direction of the substrate, thereby opening and closing between the movable planar member and the pair of both side opening and closing members. Opening and closing means, a pair of second edge portions of the substrate to be detachably attracted to the pair of both side opening and closing members, and a pair of second edge portions of the substrate to the movable plane member A substrate holding means for detachably holding; and a third turning means for turning the movable flat member so as to be in a horizontal posture or a posture facing the fixed flat member from above, wherein the opening / closing means is the horizontal The movable planar member of the posture and the one Between the two side opening and closing members, the edge adsorbing means adsorbs the pair of second edge portions of the substrate to the pair of both side opening and closing members, and the substrate holding means is a pair of second edge portions of the substrate The pair of both side opening and closing members by the third rotating means rotating the movable planar member so as to be opposed to the fixed planar member from above with the movable planar member being held between The pair of second edge portions adsorbed on the pair are opposed to the pair of first edge portions folded back above the pair of support frames, and the edge adsorbing means causes the pair of second edge portions of the substrate to The pair of both side opening and closing members are opened by opening between the pair of both side opening and closing members and the pair of both side opening and closing members that are released from the pair of both side opening and closing members, and the opening and closing means faces the fixed plane member from above. Detach from the pair of second edges of the substrate And wherein the door.

  In the present invention, the pressing means includes a pair of press dies entering between the movable flat member facing the fixed flat member from above and the pair of both side opening and closing members, and the pair of press dies. Drive means for pressing against the pair of support frames.

  In the present invention, the pair of first edge portions and the pair of second edge portions of the substrate are arranged along the longitudinal direction, and the pair of first edge portions of the substrate and the pair of second edges are arranged. A shaping device is provided that bends the base so that the positions of the bases in the width direction of the respective edges coincide with each other.

Further, the present invention has one end and the other end in the hand direction, and a pair of first edge portions at both ends in the width direction of the substrate orthogonal to the longitudinal direction in the range from the one end to the middle of the longitudinal direction. Forming the pair of second edges on the both ends in the width direction of the substrate in the range from the other end to the middle in the longitudinal direction, and folding the pair in half in the longitudinal direction The pair of second edges are superposed on the first edge, and the pair of first edges are formed by a hot-melt adhesive applied to at least one of the pair of first edges or the pair of second edges. A two-fold joining method for joining the pair of second edges to one edge, wherein the pair of first edges of the substrate and the pair of second edges are in a posture along the longitudinal direction, The position of the pair of first edges of the substrate and the pair of second edges of the substrate in the width direction is The step of bending the substrate so as to match , the edge folding means folding the pair of first edges of the substrate inward in the width direction of the substrate, and the substrate folding means, A step in which the pair of second edges are opposed to the pair of first edges folded inward in the width direction of the substrate, and the pressing means includes a width direction of the substrate. and folded inwardly the pair of first edges of said pair of second edges, and a step of pressing with each other, and heating the adhesive to a temperature at which the melting, the pair first And a step of curing the adhesive by cutting off the force of pressing the one edge and the pair of second edges against each other and cutting off the heating of the adhesive.

  According to the two-fold joining apparatus and the two-fold joining method of the present invention, the substrate is folded in half in the longitudinal direction, and the pair of first edge portions and the pair of second edge portions of the substrate are opposed to each other, Both can be accurately superimposed. In addition, since the pair of first edge portions and the pair of second edge portions of the substrate can be positioned in the step of folding the substrate in half, the positions of the two do not go wrong due to inadvertent deformation of the substrate. For this reason, according to the two-fold joining apparatus and the two-fold joining method of the present invention, it is possible to easily and quickly join extremely thin thin substrates.

The top view which shows the example of installation of the two-fold joining apparatus which concerns on embodiment of this invention, and the shaping apparatus applied to it. The block diagram which shows the main structures of the bifold joining apparatus which concerns on embodiment of this invention, and the shaping apparatus applied to it. The top view of a base material. (A) is sectional drawing which shows the usage example of the holding member of the shaping device applied to the half-fold joining apparatus which concerns on embodiment of this invention, (b) is the bottom view. The top view which shows an example of the process of shaping | molding a base material with the shaping apparatus applied to the two-fold joining apparatus which concerns on embodiment of this invention. The top view which shows the other example of the process of shaping | molding a base material with the shaping apparatus applied to the two-fold joining apparatus which concerns on embodiment of this invention. The side view which shows the usage example of the transfer apparatus applied to the two-fold joining apparatus which concerns on embodiment of this invention. The top view which shows the usage example of the transfer apparatus applied to the two-fold joining apparatus which concerns on embodiment of this invention. The top view which shows the 1st example of operation | movement of the two-fold joining apparatus which concerns on embodiment of this invention. The schematic of the 1st rotation means and the 2nd rotation means which were applied to the two-fold joining apparatus which concerns on embodiment of this invention. Sectional drawing which shows an example of operation | movement of a fixed plane member applied to the two-fold joining apparatus which concerns on embodiment of this invention, a pair of support frame, and a pair of both-sides support member in order of (a)-(c). Sectional drawing which shows the other example of operation | movement of the fixed plane member applied to the two-fold joining apparatus which concerns on embodiment of this invention, a pair of support frame, and a pair of both-sides support member in order of (a), (b). The side view explaining the process by which a base material is folded in half according to rotation of the movable plane member applied to the bifold joining apparatus which concerns on embodiment of this invention. (A) is a top view which shows an example of operation | movement of the opening / closing member by the opening / closing means applied to the two-fold joining apparatus based on Embodiment of this invention, (b) is a top view which shows another example. The fragmentary sectional view which shows the operation example of the press means applied to the two-fold joining apparatus which concerns on embodiment of this invention, and the attachment structure of a heater. The top view which shows the 2nd example of operation | movement of the two-fold joining apparatus which concerns on embodiment of this invention. The top view which shows the 3rd example of operation | movement of the two-fold joining apparatus which concerns on embodiment of this invention. The top view which shows the 4th example of operation | movement of the two-fold joining apparatus which concerns on embodiment of this invention. The perspective view of shorts.

  FIG. 1 shows a two-fold joining device 1 and a shaping device 3 according to an embodiment of the present invention. First, the base material used as the material for the shorts and the base material shaping by the shaping device 3 will be described. Next, the two-fold joining apparatus 1 will be described.

  The operations of the two-fold joining device 1 and the shaping device 3 described below are realized by the control device 5 shown in FIG. 2 controlling a drive source such as an air cylinder or a motor. The movement of the following movement is described as “movement”, and the movement of the movement supported by the shaft is rotated as “rotation”. A self-evident technique is applied to a guide structure in which an element that moves linearly by a drive source is movably supported by a slider engaged with a guide rail, and a structure that supports a shaft. These detailed explanations or illustrations are omitted.

  FIG. 3 shows a single substrate 11 having one end 7 and the other end 9 in the longitudinal direction indicated by an arrow L. The substrate 11 forms a pair of first edge portions 13 at both ends in the width direction indicated by the arrow W in a range from one end 7 to the middle in the longitudinal direction, and in a range from the other end 9 to the middle in the longitudinal direction. A pair of second edge portions 15 are formed at both ends in the width direction. A hot-melt adhesive is applied to at least one of the pair of first edges 13 and the pair of second edges 15 of the substrate 11, or an adhesive tape or the like is attached. The positions of the first edge 13 and the second edge 15 are different in the width direction of the substrate 11. Further, the first edge 13 and the second edge 15 extend in a direction inclined with respect to the longitudinal direction of the substrate 11.

  As shown in FIG. 1, the shaping device 3 includes four holding members 17 that detachably hold a pair of first edge portions 13 and a pair of second edge portions 15 of the substrate 11. FIG. 4A shows the holding member 17 as a cross section taken along line X1-X1 in FIG. As shown in FIGS. 4A and 4B, the holding member 17 projects the edge member 23 from the front surface 21 of the metal hollow cuboid 19, and a plurality of suction holes 27 are formed on the lower surface 25 of the cuboid 19. A plurality of groove portions 29 are formed. The lower surface 25 of the rectangular parallelepiped 19 is close to the bottom surface member 31 that receives the substrate 11. An air inlet of the air blower 33 is connected to the inside of the rectangular parallelepiped 19 via a direction control valve not shown in the drawing.

  The directional control valve described above generates a suction force for sucking the substrate 11 in the plurality of suction holes 27 by guiding the negative pressure generated in the intake port of the air blower 33 to the plurality of suction holes 27, or the rectangular parallelepiped 19 and the air The suction force of the suction hole 27 can be cut off by blocking the negative pressure with the blower 33. In the following description, it is assumed that a suction force that sucks the substrate 11 is generated in the hole indicated by the same symbol or the same name as the suction hole 27 or that the suction force is cut off according to the principle described here. .

  When shaping the substrate 11 shown in FIG. 1, the shaping device 3 generates a suction force in the suction holes 27 of the four holding members 17, and a pair of first edges 13 of the substrate 11 placed on the bottom member 31, And the four holding members 17 are moved to advance to the pair of second edges 15 respectively. As a result, the substrate 11 shown in FIG. 4B enters the gap between the edge member 23 and the bottom member 31 and abuts against the front surface 21 of the rectangular parallelepiped 19. In this state, as shown in FIG. 5, the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 are adsorbed to the four holding members 17.

  The shaping device 3 further advances the four holding members 17 and rotates the four holding members 17 so that the four holding members 17 are in a posture parallel to the longitudinal direction of the substrate 11 as shown in FIG. . Accordingly, the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 are parallel to the longitudinal direction of the substrate 11, and the pair of first edge portions 13 and the pair of second edge portions 15. The positions in the width direction of each match.

  On the other hand, a plurality of suction holes 27 are opened in the bottom member 31. In the process of shaping the substrate 11 as described above, the shaping device 3 generates a suction force in the suction hole 27 of the bottom member 31, and the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11. Is adsorbed to the bottom member 31. When the shaping of the substrate 11 is completed, the shaping device 3 cuts the suction force from the suction holes 27 of the four holding members 17 and the bottom surface member 31 and moves the four holding members 17 so as to retreat from the substrate 11. . When the four holding members 17 are returned to the positions shown in FIG. 1, one operation of the shaping device 3 is completed.

  Further, the entire width of the substrate 11 shown in FIG. 6 is narrower than that of the substrate 11 shown in FIG. This is because the pair of first edge portions 13 and the pair of second edge portions 15 are pushed inward in the width direction of the substrate 11 by the above-described operation of the four holding members 17. This is because the inner part is bent. A line indicated by reference numeral 35 represents a wrinkle generated by the bending of the substrate 11. The substrate 11 is transferred to the position shown in FIG. 9 by the operation of the transfer device 37 shown in FIGS.

  The top view which fractured | ruptured the transfer apparatus 37 with the arrow Y1-Y1 line | wire of FIG. 7 appears in FIG. The transfer device 37 attaches an air cylinder 43 to each of four sliders 41 guided by guide rails 39 installed above the folding device 1 and the shaping device 3, and frictions against the piston rod 45 of the air cylinder 43. The member 47 is connected. The four friction members 47 shown in FIG. 8 move in the longitudinal direction of the substrate 11 together with the air cylinder 43 by a drive source (not shown) that drives the slider 41.

  Next, the two-fold joining apparatus 1 will be described. As shown in FIGS. 1 and 2, the two-fold joining apparatus 1 includes an edge folding means 49 that folds the pair of first edge portions 13 of the substrate 11 inward in the width direction of the substrate 11, and the substrate 11 in the longitudinal direction. A base folding means 51 that is folded in the middle and the pair of first edges 13 are opposed to the pair of second edges 15, a pressing means 53 described later, and a heater 55 is provided.

  The edge folding means 49 includes a fixed flat member 57, a pair of support frames 59, a pair of both side support members 61, a first rotation means 63, a pair of both side holding members 65, and a second rotation means 67.

  The fixed planar member 57 is a panel material that receives a portion between the pair of first edge portions 13 of the substrate 11 shown in FIG. The support frame 59 is a metal square bar that is installed above the substrate 11 received by the fixed planar member 57 and extends in the longitudinal direction of the substrate 11. A heater is embedded in the support frame 59. The form of this heater may be the same as that of a press die described later. The pair of both-side support members 61 are panel members that are disposed on both sides in the width direction of the substrate 11 with respect to the fixed planar member 57 and support the pair of first edge portions 13 of the substrate 11 in a horizontal posture. A plurality of suction holes 27 are opened in the both side support members 61.

  FIG. 10 is a plan view for explaining the first rotation means 63 and the second rotation means 67. FIGS. 11A to 12B show the substrate 11, the fixed flat member 57, the pair of support frames 59, and the pair of both side support members 61 as a cross section taken along line X2-X2 in FIG. The first rotating means 63 is formed by connecting a pair of both side support members 61 one by one to two horizontal shafts 69 extending in the longitudinal direction of the substrate 11, and connecting a rotating machine 71 to each of the two horizontal shafts 69. is there. When the rotating machine 71 rotates the horizontal shaft 69, the both-side support member 61 rotates in the directions of arrows α and β shown in FIGS. 11 (a) to 12 (b).

  The both-side holding member 65 is a member in which a plurality of suction holes 27 are opened in a hollow square bar arranged outside the support frame 59 in the width direction of the substrate 11. The second rotating means 67 supports two sleeves 73 one by one on the same horizontal shaft 69 as the first rotating means 63, and couples a pair of both side holding members 65 to these sleeves 73. The sleeve 73 can freely rotate with respect to the horizontal shaft 69. When the rotational force of the rotating machine 75 is input to the sleeve 73 via the pulleys 77 and 79 and the belt 81, the pair of both-side holding members 65 rotate in the directions of arrows α and β. As the rotating machines 71 and 75, a rotary air cylinder that outputs a rotational force based on air pressure, a motor, or the like may be applied.

  As shown in FIGS. 1 and 2, the base folding means 51 includes a movable flat member 83, a pair of both side opening / closing members 85, an opening / closing means 87, an edge adsorbing means 89, a base holding means 91, and a third rotating means 93. Prepare.

  The movable planar member 83 is in a horizontal posture in which the base end 95 is close to the fixed planar member 57 and the distal end 97 is close to the bottom surface member 31, as shown in FIG. 9, between the pair of second edges 15 of the substrate 11. It is a panel material that catches the part. The pair of both side opening / closing members 85 are panel members disposed on both sides in the width direction of the substrate 11 with respect to the movable planar member 83. The edge adsorbing means 89 opens a plurality of suction holes 27 in the pair of both side opening / closing members 85, and the pair of second edge portions 15 of the substrate 11 are opened and closed by a pair of both sides opening / closing by the suction force generated in these suction holes 27. The member 85 is detachably adsorbed.

  The substrate holding means 91 has a pair of L-shaped stop bars 99 attached to the housing 101 of the two-fold joining apparatus 1 via a pair of hinge portions 103, respectively. The stop bar 99 is rotated about the hinge portion 103 by a driving source (not shown) and falls horizontally as shown in the figure, or stands up as shown in FIGS. The stop bar 99 presses the substrate 11 against the movable flat member 83 when it falls down horizontally, and comes off from the substrate 11 when it stands up.

  FIG. 13 is a schematic diagram illustrating the side surfaces of the substrate 11, the fixed planar member 57, the support frame 59, and the movable planar member 83. The third rotating means 93 shown in FIGS. 1 and 2 supports the base end 95 of the movable planar member 83 with a horizontal axis extending in the width direction of the substrate 11, and the movable planar member 83 is centered on this horizontal axis in FIG. It is rotated by a drive source so as to be in a horizontal posture represented by an imaginary line 83 'or to face the fixed flat member 57 from above as represented by a solid line.

  FIGS. 14A and 14B are plan views of the movable planar member 83 as seen from the position of the arrow Y2-Y2 line in FIG. A rectangular frame 105 is provided on the back surface of the movable flat member 83, and a pair of both side opening / closing members 85 of the substrate folding means 51 are attached to the frame 105 so as to be movable in the width direction of the substrate 11. The opening / closing means 87 is a pair of air cylinders attached to both sides of the frame 105. As the piston rod 107 moves forward and backward, the pair of both side opening and closing members 85 move, so that the movable flat member 83 and the pair of both side opening and closing members 85 are opened and closed.

  As shown in FIG. 15, the pressing means 53 includes a swing arm 109 that is pin-bonded to the housing 101, a press die 111 that is supported by the swing arm 109, and an air cylinder that is pin-bonded to the housing 101. Means 113 are provided. The piston rod 115 of the driving means 113 is pin-connected to the swing arm 109. The swing arm 109 supports a pair of press dies 111 that are separated from each other in the width direction of the substrate 11. The drive means 113 moves the piston rod 115 forward and backward to raise and lower the pair of press dies 111. The press die 111 is a metal square block in which the heater 55 is embedded. An electric heater that heats the pair of press dies 111 may be used as the heater 55.

  Next, a method for joining the shorts in half using the two-fold joining apparatus 1 will be described. The following description is always made with reference to FIG. 2 in addition to the drawing numbers indicated therein. The control device 5 is mainly a computer and controls the operation of the two-fold joining device 1 based on a program written in a storage medium accessible by the computer. In addition, the English letter attached to the beginning of the sentence is an index for dividing the operation process of the half-fold joining apparatus 1.

  A: As shown in FIGS. 7 and 8, the pair of both side support members 61 and the movable plane member 83 are each waiting in a horizontal posture, and the pair of both side holding members 65 are waiting above the fixed plane member 57. . The substrate holding means 91 raises the stop bar 99. On the other hand, the pressing means 53 causes the pair of press dies 111 to stand by above the fixed planar member 57, and the opening / closing means 87 closes the space between the movable planar member 83 and the pair of both side opening / closing members 85 shown in FIG.

  The transfer device 37 presses the four friction members 47 from above onto the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 already shaped by the shaping device 3, and these friction members 47 are It moves toward the fixed flat member 57 of the fold joining apparatus 1. As a result, the substrate 11 is transferred to the position shown in FIG. 9 together with the friction member 47, and the portion between the pair of first edges 13 of the substrate 11 is located on both side holding members 65 and the fixed flat member 57 as shown in FIG. Enter the gap between. The pair of first edge portions 13 of the substrate 11 are supported by a pair of both side support members 61 that take a horizontal posture as shown in FIG. 11A, and the position at which the longitudinal direction of the substrate 11 is roughly divided into two is movable. It overlaps with the base end 95 of the planar member 83.

  B: The two-fold joining apparatus 1 generates a suction force in the suction holes 27 of the pair of both-side support members 61 and positions the pair of first edge portions 13 of the pair of both-side support members 61 base 11. The second rotating means 67 rotates the pair of both side holding members 65 in the direction of the arrow α shown in FIG. 11B, and the suction holes 27 of the pair of both side holding members 65 are formed on the pair of first edge portions 13. When approached, the rotation of the pair of both-side holding members 65 is stopped. Accordingly, the pair of first edge portions 13 of the substrate 11 are sandwiched between the pair of both side support members 61 and the pair of both side holding members 65, respectively, and the pair of both side holding members 65 are attached to the pair of first edge portions 13. Can be superimposed. This plan view is shown in FIG.

  C: The 2nd rotation means 67 rotates a pair of both-sides holding member 65 to the direction of arrow (beta) shown in FIG.11 (c). At the same time, the first rotation means 63 rotates the pair of both side support members 61 in the direction of the arrow β in synchronization with the pair of both side holding members 65. Thereby, in the process in which the pair of both side holding members 65 and the pair of both side support members 61 rotate along the concentric circles as described above, the pair of both side holding members 65 and the pair of both side support members 61 face each other. The posture can be maintained and the pair of first edge portions 13 of the substrate 11 can be kept sandwiched between the two.

  Then, as shown in FIG. 12A, the pair of both side support members 61 are opposed to the pair of support frames 59 from above, and the pair of first edge portions 13 of the substrate 11 are the pair of support frames 59. Wrapped above This plan view is shown in FIG. Further, when the first edge 13 is folded back above the support frame 59, the first rotation means 63 stops the rotation of the pair of both side support members 61, and the second rotation means 67 The rotation of the pair of both side holding members 65 is stopped. The suction force is cut off from the suction holes 27 of the pair of both side support members 61.

  D: The two-fold joining apparatus 1 generates a suction force in the suction holes 27 of the pair of both-side holding members 65 and positions the pair of first edge portions 13 of the base 11 on the pair of both-side holding members 65. The first rotating means 63 rotates the pair of both side support members 61 in the direction of the arrow α shown in FIG. 12B, and returns the pair of both side support members 61 to the horizontal posture. This plan view is shown in FIG. The dots in the figure are attached to one surface 117 of the substrate 11 turned upside down in this process.

  E: The edge adsorbing means 89 generates a suction force in the suction holes 27 of the pair of both-side opening / closing members 85 and adsorbs the pair of second edge portions 15 of the substrate 11 to the pair of both-side opening / closing members 85. Accordingly, the pair of second edge portions 15 of the substrate 11 are positioned on the pair of both side opening / closing members 85. The substrate holding means 91 tilts the stop bar 99 horizontally and presses the portion between the pair of second edges 15 of the substrate 11 against the movable flat member 83 by the stop bar 99.

  F: The third rotating means 93 rotates the movable planar member 83 in the direction of the arrow θ shown in FIG. 13 to fold the substrate 11 in half. When the movable plane member 83 faces the fixed plane member 57 from above, the third rotation means 93 stops the rotation of the movable plane member 83. Thus, the pair of first edge portions 13 positioned on the pair of both side holding members 65 in the step B, and the pair of second edge portions 15 positioned on the pair of both side opening and closing members 85 in the step E. Are opposed to each other, and they overlap each other. FIG. 14A shows a state in which the movable flat member 83 faces the fixed flat member 57 from above.

  G: The edge adsorbing means 89 cuts the suction force from the suction holes 27 of the pair of both side opening / closing members 85 and releases the pair of second edge 15 of the substrate 11 from the pair of both side opening / closing members 85. As shown in FIG. 14B, the opening / closing means 87 opens between the movable planar member 83 and the pair of both-side opening / closing members 85, so that the substrate 11 is interposed between the movable planar member 83 and the pair of both-side opening / closing members 85. The pair of second edges 15 are exposed. At this stage, the pair of both side opening / closing members 85 is detached from the pair of second edges 15 of the substrate 11.

  H: As shown in FIG. 15, the driving means 113 of the pressing means 53 lowers the pair of press dies 111, and a pair between the movable flat member 83 opened in the step G and the pair of both side opening / closing members 85. Each press die 111 is entered. Further, the driving means 113 presses the pair of press dies 111 downward against the pair of second edges 15 of the substrate 11. As a result, the pair of first edge portions 13 and the pair of second edge portions 15 that face each other are strongly sandwiched between the pair of support frames 59 and the pair of press dies 111 and pressed against each other. At the same time, the heat of the heater 55 embedded in the pair of press dies 111 and the heater embedded in the support frame 59 is conducted to the substrate 11, and the adhesive applied to the substrate 11 is melted.

  I: The pressing means 53 raises the pair of press dies 111 and separates the pair of press dies 111 from the substrate 11. Thereby, since the heat of the heater 55 is cut off from the substrate 11, the temperature of the adhesive is lowered, and when the adhesive is cured, the pair of first edge portions 13 and the pair of second edge portions 15 are joined. Complete. The suction force is cut off from the suction holes 27 of the pair of both-side holding members 65.

  J: The substrate 11 is unloaded from the two-fold joining apparatus 1. For example, a rod extending in the width direction of the substrate 11 is disposed in the vicinity of the base end 95 of the movable flat member 83 above the substrate 11 in the step E, and the rod is folded in two in the step F. 11 is caught inside. If this bar is moved toward the shaping device 3 by the drive source, the substrate 11 can be pulled out from between the fixed plane member 57 and the movable plane member 83.

  Further, the substrate 11 may be discharged to the outside of the casing 101 in accordance with the movement of the bar. Finally, it is desirable that the substrate 11 naturally falls from the bar. Thereafter, the movable planar member 83 returns to the horizontal posture, and the process A is executed again. When the substrate 11 newly shaped by the shaping device 3 is transferred to the position shown in FIG. 9, the half-fold joining device 1 performs the above-described steps after B again.

  According to the two-fold joining apparatus 1 described above, when the substrate 11 is folded in half, the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 face each other and accurately overlap each other. It will be. In addition, since the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 are positioned by the suction force of the suction holes 27, the positions of the two are caused by inadvertent deformation of the substrate 11. Will never go crazy. For this reason, according to the two-fold joining apparatus 1 and the two-fold joining method, even if the base 11 is a very flexible thin material, such a base 11 can be easily and quickly joined. .

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Even if the shaping device 3 and the transfer device 37 are omitted, the implementation of the present invention is not hindered.

  That is, the step of placing the substrate 11 on the bottom member 31 may be performed manually. Using a robot arm in place of the holding member 17 of the shaping device 3, the pair of first edge portions 13 and the pair of second edge portions 15 of the substrate 11 received by the support member are respectively held so as to operate the robot arm. Accordingly, the substrate 11 may be shaped such that the pair of first edge portions 13 and the pair of second edge portions 15 are in a posture along the longitudinal direction of the substrate 11. A robot arm instead of the transfer device 37 may transfer the substrate 11 as described above.

  The present invention is a technique useful not only for manufacturing clothing but also for joining all sheet-like flexible materials.

  DESCRIPTION OF SYMBOLS 1 ... Folding joining apparatus, 3 ... Shaping apparatus, 5 ... Control apparatus, 7 ... One end, 9 ... The other end, 11, 203 ... Base material, 13 ... 1st Edge, 15 ... second edge, 17 ... holding member, 19 ... cuboid, 21 ... front, 23 ... edge member, 25 ... lower surface, 27 ... suction Hole, 29 ... groove, 31 ... bottom member, 33 ... air blower, 35 ... wire, 37 ... transfer device, 39 ... guide rail, 41 ... slider, 43 ... Air cylinder, 45,107,115 ... Piston rod, 47 ... Friction member, 49 ... Edge folding means, 51 ... Base folding means, 53 ... Pressing means, 55 .. Heater 57 ... Fixed flat member 59 ... Supporting frame member 61 ... Both side support member 63 ... First rotating means 65 ... Both side holding member 67 ... No. 2 rotating means, 69 ... horizontal axis, 71, 75 ... rotating machine, 73 ... sleeve, 77, 79 ... pulley, 81 ... belt, 83 ... movable Surface member, 85 ... Opening / closing member on both sides, 87 ... Opening / closing means, 89 ... Edge adsorbing means, 91 ... Substrate holding means, 93 ... Third rotating means, 95 ... Base End, 97 ... tip, 99 ... stop bar, 101 ... housing, 103 ... hinge, 105 ... frame, 109 ... swing arm, 111 ... press die, 113 ... driving means, 117 ... one side, 201 ... shorts, 205 ... side.

Claims (6)

A pair of first edges are formed at both ends in the width direction perpendicular to the longitudinal direction in the range from the one end to the middle of the longitudinal direction, and one end and the other end in the longitudinal direction. In the range up to the middle of the longitudinal direction, the pair of second edges formed at both ends in the width direction is folded in half in the longitudinal direction to fold the pair of first edges to the pair of first edges. And the pair of first edges are joined to the pair of first edges by a hot melt adhesive applied to at least one of the first edge or the second edge of the substrate. A two-fold joining device for joining two edges,
Edge folding means for folding the pair of first edge portions of the substrate inward in the width direction of the substrate;
Folding means for folding the substrate in the middle of its longitudinal direction and making the pair of second edges face the pair of first edges folded inward in the width direction of the substrate;
A pressing unit that presses the pair of first edges and the pair of second edges folded back inward in the width direction of the substrate ;
And a heater for heating the adhesive to a melting temperature thereof. The edge folding means includes a fixed planar member that receives between a pair of first edges of the substrate;
A pair of support frames provided above the substrate received by the fixed planar member and extending in the longitudinal direction of the substrate;
A pair of both-side support members disposed on both sides of the substrate in the width direction with respect to the fixed planar member, and supporting the pair of first edges of the substrate in a horizontal posture;
A first turning means for turning the pair of both side support members in a horizontal position or turning the pair of support members so as to face the pair of support members from above;
A pair of both-side holding members disposed on both sides in the width direction of the substrate with respect to the pair of support frames;
A second rotating means for rotating the pair of both-side holding members so as to maintain a posture facing the pair of both-side support members;
The second rotating means causes the pair of both side holding members to face the pair of both side supporting members in the horizontal posture, so that the base is placed between the pair of both side supporting members and the pair of both side holding members. Sandwich a pair of first edges,
In the process in which the first rotating means rotates the pair of both side support members in the horizontal posture to a posture facing the pair of support frames from above, the pair of both side holding members and the pair of both side support members, The two-fold joining apparatus according to claim 1, wherein the pair of first edge portions of the base material sandwiched between the two are folded back above the pair of support frames. The substrate folding means is adjacent to the fixed planar member, and a movable planar member that receives between a pair of second edges of the substrate in a horizontal posture;
A pair of both side opening and closing members disposed on both sides in the width direction of the substrate with respect to the movable plane member;
Opening and closing means for opening and closing between the pair of both side opening and closing members by moving the pair of both side opening and closing members back and forth in the width direction of the substrate;
Edge adsorbing means for detachably adsorbing the pair of second edge portions of the substrate to the pair of both side opening and closing members;
A substrate holding means for detachably holding the movable flat member between a pair of second edges of the substrate;
A third rotating means for rotating the movable planar member so as to be in a horizontal posture or a posture facing the fixed planar member from above;
The opening / closing means closes the movable flat member in the horizontal posture and the pair of both side opening / closing members, and the edge adsorbing means adsorbs the pair of second edge portions of the substrate to the pair of both side opening / closing members, With the substrate holding means holding the movable flat member between a pair of second edges of the substrate, the third rotating device is in a posture to face the movable flat member from above the fixed flat member. The pair of second edge portions adsorbed by the pair of both side opening and closing members are opposed to the pair of first edge portions folded back above the pair of support frames,
The edge adsorbing means releases the pair of second edge portions of the substrate from the pair of both side opening and closing members, and the opening and closing means faces the fixed plane member from above and the pair of both side opening and closing. The two-fold joining apparatus according to claim 2, wherein the pair of both side opening and closing members are separated from the pair of second edges of the substrate by opening a gap between the members. The pressing means includes a pair of press dies that enter between the movable planar member in a posture facing the fixed planar member from above and the pair of both side opening and closing members,
The two-fold joining apparatus according to claim 3, further comprising a driving unit that presses the pair of press dies against the pair of support frames.   Each of the pair of first edges and the pair of second edges of the substrate is in a posture along the longitudinal direction of the pair of first edges and the pair of second edges of the substrate. The bi-fold joining apparatus according to any one of claims 1 to 4, further comprising a shaping device that bends the base so that the positions in the width direction of the base match. A pair of first edges are formed at both ends in the width direction of the substrate perpendicular to the longitudinal direction in a range from the one end to the middle of the longitudinal direction, with one end and the other end in the longitudinal direction. To the middle of the longitudinal direction, the substrate formed with a pair of second edges at both ends in the width direction of the substrate is folded in half in the middle of the longitudinal direction to the pair of first edges to the pair of first edges The pair of second edges are overlapped, and the pair of first edges or the pair of second edges is bonded to the pair of first edges by the hot-melt adhesive applied to at least one of the pair of second edges. A two-fold joining method for joining the second edges of
Each of the pair of first edges and the pair of second edges of the substrate is in a posture along the longitudinal direction of the pair of first edges and the pair of second edges of the substrate. Bending the substrate so that the position in the width direction of the substrate matches,
A step of folding the edge of the pair of first edges of the substrate inward in the width direction of the substrate;
A base folding means, wherein the base is folded in half in the longitudinal direction, and the pair of second edges are opposed to the pair of first edges folded inward in the width direction of the base; ,
A step of pressing the pair of first edge portions and the pair of second edge portions that are folded back inward in the width direction of the substrate;
Heating the adhesive to its melting temperature;
And a step of curing the adhesive by cutting off the force of pressing the pair of first edges and the pair of second edges together and cutting off the heating of the adhesive. .

Images