JPH0669Y2 - Pocket folding machine - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a pocket folding machine for forming a pocket.

[Prior art]

Conventionally, for example, when forming a breast pocket of a shirt, it is necessary to fold back the edge of the pocket material to the back side along the pocket shape and then sew the pocket material that has been formed on the body. is there. There is known a pocket folding machine that automates the forming process of such a pocket material. According to the apparatus, the forming process is performed as follows. First, place the pocket material on the gauge plate, which is the template of the pocket, and have the downwardly projecting piece in the periphery, and lower the holding plate that overlaps with the gauge plate onto the gauge plate, and measure the pocket material with the gauge. While pressing the plate, the edge of the pocket material protruding laterally from the gauge plate is bent downward along the gauge plate by the protruding piece of the pressing plate. Next, the bending piece support plate having the central space portion in which the pocket material or the like is placed is lowered, and the bending piece arranged on the bending piece support plate is allowed to move back and forth toward the lower side periphery of the gauge plate. Actuate the piece to fold the edge of the pocket blank along the back of the gauge plate. A plurality of bent pieces placed on the bent piece support plate so as to be able to move back and forth are arranged along the side circumference of the gauge plate so that the edge portion of the pocket material is bent with respect to the entire side circumference of the pocket shape. Has been done. Then, the plurality of bent pieces are coupled by a complicated link mechanism and driven by a drive source such as an air cylinder common to the plurality of bent pieces.

[Problems to be solved by the device]

By the way, the gauge plate, presser plate,
If the bent piece support plate has different pocket shapes, differently shaped gauge plates, holding plates, and bent piece support plates must be used. Therefore, a large number of bent piece support plates and the like corresponding to each pocket shape are required, and it is necessary to design a complicated link mechanism according to each pocket shape. In addition, in order to ensure the bending of the edge of the pocket material or to make the contour of the pocket shape beautiful, the bending order of the edge of the pocket material, more specifically, the advance of the bent piece at the time of bending The order and the retreating order of the bent pieces after the completion of bending are extremely important. And
The optimal sequence of motion of the bent pieces depends strongly on the pocket shape. However, when a plurality of bent pieces are connected by a link mechanism and driven by a common air cylinder, a complicated link mechanism is used to set the advancing order and the retreating order of the plurality of bent pieces to the optimum order. Need to be designed. Further, the optimum retreat order of the plurality of bent pieces is not necessarily the reverse order of the optimum advance order. In such a case, it is extremely difficult to control the link mechanism. As described above, the link mechanism becomes more and more complicated in consideration of the operation sequence of the bent pieces. Therefore, there has been a problem that a great deal of time and labor are required for designing and manufacturing the bent piece support plate.

[The purpose of the device]

The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic sewing machine that facilitates the design and manufacture of a bent piece support plate.

[Means for solving problems]

The configuration of the device for solving the above-mentioned problems is that a pocket material can be placed, and a gauge plate that becomes a pocket-shaped mold when the edge of the pocket material is folded, and can be raised and lowered with respect to the gauge plate. Is provided on the side of the gauge plate by its lowering, the pocket material is pressed against the gauge plate, and the edge of the pocket material protruding laterally from the gauge plate is along the gauge plate. And a bending plate supporting plate in which a central space portion facing the outer circumference of the gauge plate and the pressing plate is formed, and a retractable plate arranged around the central space portion of the bending plate support plate so as to be movable back and forth. A plurality of bent pieces that are provided to bend the edge portion of the pocket material under the gauge plate, and the bent piece support plate, and each of the bent pieces is an independent drive source to the central space. And the bending piece drive means for moving back and forth individually By operating the independent driving sources of the bending piece driving means in a predetermined order according to the pocket shape, the plurality of bending pieces are operated in a predetermined order according to the pocket shape. Is characterized by.

[Action]

The plurality of bent pieces arranged on the bent piece support plate employ a mechanism that is individually driven by independent driving sources, and thus do not require a complicated link mechanism as in the conventional case. Therefore, the bent piece support plate can be easily designed and manufactured. Further, the operating order of the plurality of bent pieces can be set to the optimum order according to the pocket shape by controlling the driving order of the independent driving sources.

【Example】

Hereinafter, the present invention will be described based on a specific embodiment. The folding machine of this embodiment has a structure shown in FIG. 2. A supporting member 10 is rotatably supported on the sewing machine table 4 about a horizontal axis, and an air cylinder 11 mounted on the lower surface thereof. A gauge plate support 13 located in front of the support member 10 is attached to the piston 12. A gauge plate 14 for determining the outer shape of the pocket material P is detachably attached to the gauge plate support 13. As shown in FIG. 1, two pressing members 141 and 142 are arranged in the center of the gauge plate 14, and the pocket material P is pressed with its upper end bent to the back side. The gauge plate 14 is locked by the members 141 and 142.
Placed on top. A support shaft 16 extending in the horizontal direction is provided on the shaft support portion 15 projecting from both ends of the front portion of the support member 10.
A holding plate support 17 is rotatably attached to the. A holding plate 19 is detachably attached to a pair of mounting portions 18 projecting from the holding plate support 17. The support member 1 is attached to the connecting piece 20 protruding from the center of the upper portion of the holding plate support 17.
A piston 22 of an air cylinder 21 rotatably connected to the upper surface of 0 is connected. As the piston 22 moves in and out, the holding plate 19 is rotated between an operating position where the pressing plate 19 overlaps the gauge plate 14 and an inactive position where the pressing plate 19 is separated upward from the gauge plate 14. ing. The holding plate 19 has a projecting piece 190 extending downward on the side circumference, and when the holding plate 19 descends onto the gauge plate 14, the pocket material P can be interposed between the protruding piece 190 and the side wall 140 of the gauge plate 14. The holding plate 19 is superposed on the gauge plate 14 leaving a gap. Therefore, the pocket material P placed on the gauge plate 14 is not attached to the gauge plate 14 and the pressing plate 19.
It is sandwiched between them and is bent downward along the side wall 140 of the gauge plate 14 by the protruding piece 190. On the other hand, an air cylinder 28 is provided between the upper end of each support block 23 and both side portions of the support member 10, the base end of which is rotatably connected to the support member 10, and the piston 29 of which is provided. It is connected to the upper end of the support block 23. In addition, a pair of support blocks 2 is provided at both ends of the support shaft 16.
3 are rotatably supported, and a bent piece support plate 24 having a central space 50 is detachably attached to the front ends thereof in a substantially U shape. The support member 10 is rotatably supported by an air cylinder (not shown) around a horizontal axis (not shown). When the air cylinders 21 and 28 are in the locked state, the holding plate 19 and the bent piece support are supported. Board 24
Moves up and down with respect to the sewing machine table 4 as the support member 10 moves up and down. The detailed structure of the bent piece support plate 24 is shown in FIG. On the bent piece support plate 24, six air cylinders 251, 252, 253, 254 are provided toward the central space 50.
255 and 256 are arranged. Then, those air cylinders 251, 252, 253, 254, 25
Pistons 26 operatively connected to 5, 256 respectively
1, 262, 263, 264, 265, 266 respectively include bent pieces 271, 272, 273, 274, 27.
5,276 are attached. The bending pieces 271 and the like are operated at positions where the bending pieces 271 and the like extend below the protruding pieces 190 of the pressing plate 19 to the back surface of the gauge plate 14 as the pistons 261 and the like move in and out, and the gauge plate 14 Is retracted from the back surface of the sheet and moved to a retracted position separated from the gauge plate 14 and the protruding piece 190. The bending piece 271 and the bending piece 276 are rotatably supported on the shaft 51 and the shaft 52, respectively, and the piston 261 and the piston 2 are provided at the central portions of the bending piece 271 and the bending piece 276, respectively.
67 are engaged with each other via the swing link 53 and the swing link 54. Therefore, according to the forward / backward movement of the piston 261, the bending piece 271, the bending piece 2
76 swings around the shaft 51 and the shaft 52, respectively. Since the bent pieces 271 and the bent pieces 276 are swung prior to the protrusion of the bent pieces 272 and the bent pieces 275 adjacent to the bent pieces 271 and 276, the pocket material that is bent to the side circumference at the entrance of the pocket is It is prevented from protruding toward the entrance.
Further, the adjacent bent pieces, for example, the bent pieces 273 and the bent pieces 272 are arranged such that the adjacent ends of the both are vertically overlapped with each other. To prevent. In the above structure, the pocket forming process is performed as follows. A rotation shaft (not shown) is rotated to raise the support member 10 upward with respect to the sewing machine table 4, and the gauge plate 14, the pressing plate 19 and the bent piece support plate 24 operatively connected to the support member 10 are raised. Let Then, the gauge plate 14 is the third
As shown in FIG. (A), the bending piece support plate 24 is placed at a standby position separated from the support plate placement surface 4a of the sewing machine table 4 by a predetermined distance D, and then the air cylinders 21 and 28 are operated. And the presser plate 19 is raised. In this state, the fabric W is placed on the support plate mounting surface 4a below the gauge plate 14.
And the pressing member 141 on the gauge plate 14.
The pocket material P is placed while lightly holding the upper end portion bent by and 142. Next, the air cylinders 21 and 28 are operated to move the holding plate 1
9 and the bent piece support plate 24 are lowered, and as shown in FIG. 3 (b), the pressing plate 19 is superposed on the gauge plate 14, so that the peripheral edge portion of the pocket material P extends along the outer circumference of the gauge plate 14. And fold it downward. Then, the air cylinders 251 to 256 shown in FIG. 1 are sequentially operated in a predetermined order according to the pocket shape, and as shown in FIG. 3 (c), bending pieces 271 to 276 (in FIG. The bent piece is the bent piece 2
72 and bent piece 275 are typically shown. ) Is moved to the lower side of the gauge plate 14, and the bent pieces 271 to
The gauge plate 14 is attached to the peripheral edge of the pocket material P by 276.
Fold it so that it overlaps with the lower surface of the. Next, as shown in FIG. 3 (d), a rotation shaft (not shown) is rotated around a rotation shaft (not shown) so that the distance between the support plate placement surface 4a of the sewing machine table 4 and the gauge plate 14 becomes smaller than the distance D. By rotating the support member 10 on each plate 14,
19 and 24 are dropped onto the surface of the sewing machine table 4, and the cloth W
Is pressed. Next, in the pressed state, as shown in FIG.
As shown in (e), the bending pieces 271 to 276 are returned and moved, and the bending pieces 271 to 276 are separated from the pocket material P, and then the air cylinders 21 and 28 are operated to move them.
As shown in (f), the bent piece support plate 24 and the pressing plate 19 are raised to separate them from the pocket material P.
In addition, the retreating order of the bent pieces 271 to 276 is set to an optimal order according to the pocket shape so that the bent edge portion of the pocket material P does not return in the anti-folding direction. Next, the feed plate 9 is moved to a position above the gauge plate 14 in the unclamped state as shown in FIG.
It is descended toward 4. Then, the feed plate 9 presses the pocket material P together with the gauge plate 14 onto the cloth W, and becomes a clamped state. Next, as shown in FIG. 3 (h), the air cylinder 11 is operated to move the gauge plate 14 rearward and pull out from the pocket material P. Next, by holding the feed plate 9 in the clamped state and moving it to the sewing position F of the sewing machine 1,
Both the pocket material P and the cloth W are conveyed to the sewing position F. Next, the sewing machine 1 is driven while the clamped state by the feed plate 9 is maintained, and the sewing process is executed. In the above embodiment, when the bent piece is returned, the gauge plate 14 and the holding plate 1 are arranged so that the edge of the pocket material bent under the gauge plate does not move along with the bent piece.
9. The positions of the bent piece support plate 24 and the like with respect to the table surface are adjusted. However, the groove 60 is formed in the bending pieces 272 to 275 that move forward and backward with respect to the gauge plate 14, and the bending piece 2
When 72 to 275 are advanced below the gauge plate 14, a pin (not shown) is projected into the groove 60 from a pin hole (not shown) formed in the sewing machine table 4, and the cloth W
With the pin and the pocket material P fixed by the pin,
The bent pieces 272 to 275 may be retracted from below the gauge plate 14. In this case, it is possible to completely prevent the edge portion of the pocket material P bent under the gauge plate 14 from returning in the anti-bending direction as the bending piece retreats.

[Effect of device]

As described in detail above, the pocket folding machine of the present invention is arranged to move forward and backward around the central space of the bending piece support plate, and the edge of the pocket material is bent under the gauge plate. In order to ensure the bending of the edge of the pocket and to make the contour line beautiful, the bending pieces are operated individually in the central space by a separate drive source in a predetermined order according to the shape of the pocket. This makes it easy to set or change the optimum operating sequence according to the pocket shape of the. Further, unlike the conventional case, it is not necessary to design an optimal link mechanism for each pocket shape, and the operation order of the bending pieces can be arbitrarily changed, which facilitates the design of this device and reduces the bending pieces. It is possible to easily and inexpensively supply the arranged bent piece support plate.

[Brief description of drawings]

FIG. 1 is a plan view showing the structure of a bending piece support plate arranged in a pocket folder according to a specific embodiment of the present invention. Second
The figure is a perspective view showing the configuration of a pocket folding machine. FIG. 3 is an explanatory view showing the operation of the pocket folder. 1 ... Sewing machine 2 ... Arm part 3 ... Bed part 4 ... Sewing machine table 5 ... Needle 7 ... Feed arm 9 ... Feed plate 14 ... Gauge plate 19 ... Presser plate 24 ... Bending piece support plate 271
276 ... Bending pieces 261-266 ... Piston 251-
256 ... Air cylinder

Claims (1)

[Scope of utility model registration request] 1. A gauge material on which a pocket material can be placed and which becomes a pocket-shaped mold when the edge portion of the pocket material is folded, and a gauge plate which can be moved up and down with respect to the gauge plate, and is lowered by the gauge plate. A pressing plate that includes a protruding piece that faces the side surface of the gauge plate, presses the pocket material against the gauge plate, and bends an edge of the pocket material that protrudes laterally from the gauge plate downward along the gauge plate. A bent piece support plate in which a central space portion facing the outer circumferences of the gauge plate and the press plate is formed; and a rim of the pocket material, which is arranged so as to be movable back and forth around the central space portion of the bent piece support plate. A plurality of bending pieces for bending a portion below the gauge plate, and a folding piece arranged on the bending piece support plate for individually advancing and retracting each bending piece with respect to the central space portion by an independent drive source. Bending piece driving means, and the bending piece driving means Wherein the independent drive source to drive in a predetermined order in response to said pocket-shaped, pocket Oriki, characterized in that actuating the plurality of bent pieces in a predetermined order according to said pocket shape.