JP5783559B2 - Molding apparatus and manufacturing method - Google Patents

Description

  The present invention relates to a technique for forming a clip for wiring and piping.

As a wiring and piping clip, a clip in which a band-shaped metal plate is covered with an elastic body such as a resin is known (for example, see Patent Document 1 and Patent Document 2).
Such a clip is very effective for gripping wiring and piping with much vibration, such as automobiles and construction machines.

FIG. 24 shows a typical example of the clip C (clip CJ).
In the clip CJ, a band-shaped metal plate is coated with an elastic body in advance, and the band-shaped metal plate is bent with a processing machine (for example, a bender) by a flat plate coated with the elastic body, and formed into the shape of FIG. ing.
In FIG. 24, a two-dot chain line indicates the shape when the molded product (clip) is not used (when the wiring and piping are not gripped). On the other hand, the solid line in FIG. 24 shows the shape when the molded product (clip) grips the wiring and piping.

Here, in the clip CJ, the angles θ1 and θ2 formed by the flat plate portions Cj2 and Cj3 are different at both ends Ce1 and Ce2 of the annularly curved portion Cj1.
Then, processing one end portion Ce1 of the curved portion (the end portion on the side where the angle θ1 formed by the flat plate portion Cj2 is small), in other words, processing of bending the end portion Ce1 and the flat plate portion Cj2 at the angle θ1, It was difficult to carry out automatically and continuously with a processing machine (for example, a vendor).
However, it is dangerous and inefficient to bend the end portion Ce1 and the flat plate portion Cj2 at an angle θ1 by a manual operation by an operator, and a product yield cannot be expected.
Therefore, processing by automatic control is desired, but a molding apparatus that automatically processes the clip CJ as shown in FIG. 24 has not been proposed yet.

JP 2000-337559 A Utility Model Registration No. 3101873

  The present invention has been proposed in view of the above-described problems of the prior art, and has a circularly curved portion and a flat plate portion to which the curved portion is connected, and at both ends of the curved portion. It is an object of the present invention to provide a molding apparatus and a manufacturing method capable of quickly and accurately processing wiring and piping clips having different angles to the flat plate portion.

The molding apparatus of the present invention has an annularly curved portion (Cs1) and flat plate portions (Cs2, Cs3) to which the curved portion (Cs1) is connected, and one of the curved portions (Cs1) The clip (C) is formed such that the angle (θ1) formed by the end portion (Ce1) and the flat plate portion (Cs2) is smaller than the angle (θ2) formed by the other end portion (Ce2) and the flat plate portion (Cs3). In the forming apparatus (100), a support member (left and right forming rollers 71 and a lower presser 74) on which a work to be processed (W: a material in which a resin Wr having unevenness is coated at a predetermined position of the metal plate Ws) is placed. ), A vertical pressing member (die: 51) that moves in the vertical direction to deform the workpiece (W), and a vertical pressing member (51) that moves downward in the vertical direction (and is bent by the vertical pressing member 51). Work W ) And the moving member (cylinder 52 and piston 53) for the vertical direction pressing member that reciprocates vertically in the vertical direction pressing member (51). The direction of the processing member (oblique direction pressing member 61) toward the vertical direction pressing member (51) (and the workpiece W bent by the vertical direction pressing member 51) moved downward in the vertical direction (arrows in FIGS. 6 and 7) A moving member (cylinder 62 and piston 63) for a processing member (obliquely pressing member 61) reciprocating in a direction (arrow R direction in FIG. 8) that is separated from the S direction), and the support member (71, 74) is a pair of members (left and right molding lines) that can move in the horizontal direction to positions spaced apart from each other when the vertical pressing member (51) moves downward in the vertical direction. -71) and a position where the vertical pressing member (51) has moved downward in the vertical direction (more specifically, when the vertical pressing member 51 has moved downward in the vertical direction, the vertical pressing is performed via the workpiece W). A vertically movable member (lower presser 74) that descends to a position that contacts the member 51), the vertical pressing member (51) has a recess (51b), the contour of which is the clip The curved portion (Cs1) of (C) is the same as a part of the flat plate portions (Cs2, Cs3) continuous to both ends thereof, and the shape of the concave portion (51b) is the same as that of the curved portion (Cs1). (The end portion Ce1 which is one end portion of the curved portion and has a small angle with the flat plate portion) and has a moving member for the processing member (obliquely pressing member 61). Cylinder 62 and piston 63) When the work member (diagonal direction pressing member 61) is moved toward the vertical direction pressing member (51) (and the workpiece W bent by the vertical direction pressing member 51) (in the direction of arrow S in FIGS. 6 and 7). The vertical direction pressing member (51) has a function of moving to a position where the processing member (oblique direction pressing member 61) engages with the recess (51b) of the vertical direction pressing member (51), and the vertical direction pressing member (51) and the processing member A jig (extraction tool 80) for extracting the workpiece (W) (or the product clip C) deformed by the (oblique pressing member 61) from the surface of the vertical pressing member (51), The jig (extraction jig 80) includes notched portions (81c, 82c), and the edges of the notched portions (81c, 82c) do not interfere with the vertical pressing member (51), but the vertical direction Attached to the pressing member (51) surface It is characterized in that it is set in a shape that comes into contact with the worn workpiece (the molded workpiece W or the product clip C).

The manufacturing method of the present invention uses the above-described molding apparatus (the molding apparatus 100 according to claim 1) and uses a circularly curved portion (Cs1) and a flat plate portion (Cs2, Cs3) to which the curved portion is connected. The angle (θ1) formed by one end (Ce1) of the curved portion (Cs1) and the flat plate portion (Cs2) is the angle (θ2) formed by the other end (Ce2) and the flat plate portion (Cs3). In the method of manufacturing the clip (C) configured to be smaller than (), a workpiece (W) to be processed (a material in which a predetermined portion of the metal plate Ws is coated with an uneven resin Wr) is supported by support members (left and right). A step (FIG. 5) of placing on the forming roller 71 and the lower presser 74), a step of deforming the workpiece (W) by moving the vertical pressing member (51) in the vertical direction (FIG. 6), and a processing member. (Diagonal direction pressing member 61) vertically below And moving to the vertical pressing member (51) (and the workpiece W bent by the vertical pressing member 51) (in the direction of arrow S in FIGS. 6 and 7) (FIG. 7), and supporting The members (71, 74) include a pair of members (left and right forming rollers 71) that can move in the horizontal direction, and members (lower pressers 74) that can move in the vertical direction. In the step of deforming the workpiece (W) by moving in the vertical direction (FIG. 6), when the vertical pressing member (51) moves downward in the vertical direction, a pair of members (left and right moldings) that can move in the horizontal direction. The roller 71) moves to a position separated from each other across the vertical direction pressing member (51), and the vertically movable member (lower presser 74) is a position where the vertical direction member (51) descends (in more detail). Is vertical through the workpiece W The vertical pressing member (51) has a recess (51b), and the contour thereof is a curved portion (Cs1) of the clip (C) and both ends thereof. In the step of deforming the workpiece (W) by moving the vertical pressing member (51) in the vertical direction (FIG. 6), which is the same as a part of the flat plate portion (Cs2, Cs3) that continues to the workpiece (Ws), the workpiece (W ) Is deformed along the tip (convex portion 51a) shape of the vertical pressing member (51), and the shape of the concave portion (51b) is the one end portion (Ce1: curved portion) of the curved portion (Cs1). Is equal to the shape of one end of the flat plate portion Cs2 and the end portion on the side where the angle θ1 is small, and the vertical direction pressing member (the oblique direction pressing member 61) is moved vertically downward ( 51) (and by the vertical pressing member 51) In the step of moving toward the bent workpiece W) (FIG. 7), the processing member (obliquely pressing member 61) is engaged with the recess of the vertical pressing member, and the vertical pressing member (51). And the process (FIG. 17, FIG. 20-22) which extracts the workpiece | work (W) (or clip C which is a product) deform | transformed with the member for a process (diagonal direction pressing member 61) from the vertical direction pressing member (51) surface. In the extraction step (FIG. 17, FIG. 20 to FIG. 22), the jig (extraction jig 80) surrounds the vertical pressing member (51) and the jig (extraction jig 80) is included. Workpieces in which the cut-out portions (81c, 82c) of the material adhere to the surface of the vertical pressing member (51) without interfering with the vertical pressing member (51) (the deformed workpiece W or the product clip C). Move horizontally while touching It is characterized by doing.

  According to the present invention having the above-described configuration, when the vertical pressing member (51) moves downward in the vertical direction, the vertical pressing member (51) can move in the horizontal direction to a position separated from each other across the vertical pressing member (51). When the pair of members (the left and right forming rollers 71) and the vertical pressing member (51) are moved downward in the vertical direction, the vertical pressing member (51) is lowered to a position where the vertical pressing member (51) is lowered through the workpiece (W). The vertical direction pressing member (51) has a concave portion (51b), and the contour thereof is the curved portion (Cs1) of the clip (C). Since it is the same as a part of the flat plate portions (Cs2, Cs3) continuous at both ends thereof, when the vertical pressing member (51) moves downward in the vertical direction, the workpiece (W) is moved to the vertical pressing member ( 51) tip (51a) Along the Jo deforms to the shape of the curved portion of the clip (C) (Cs1).

  Here, according to the present invention, the shape of the concave portion (51b) of the vertical pressing member (51) is the one end portion of the curved portion (one end portion Ce1 of the curved portion, and the flat plate portion Cs2). And the processing member (obliquely pressing member 61) is moved by a moving member (cylinder 62 and piston 63) for the processing member (obliquely pressing member 61). When moving toward the vertical pressing member (51) (and the workpiece W bent by the vertical pressing member 51) (in the direction of arrow S in FIGS. 6 and 7), the concave portion (51b) of the vertical pressing member ), The end portion (Ce1) on the side having a smaller angle (θ1) with the flat plate portion (Cs2) in the annularly curved portion (Cs1) is easily machined.

Therefore, according to the present invention, the vertical pressing member (51) is moved downward in the vertical direction, and the processing member (diagonal pressing member 61) is bent by the vertical pressing member (51) (and the vertical pressing member 51). Portion (Cs1) that is curved in an annular shape by moving toward the workpiece W) (in the direction of arrow S in FIGS. 6 and 7) and the flat plate portion to which the curved portion (Cs1) is connected. (Cs2, Cs3), the angle (θ1) formed by one end (Ce1) of the curved portion (Cs1) and the flat plate portion (Cs2) is the same as that of the other end (Ce2) and the flat plate portion (Cs3). The clip (C) configured to be smaller than the formed angle (θ2) is processed.
Here, the vertical movement of the vertical pressing member (51) can be automatically controlled by using the moving members (cylinder 52 and piston 53) for the vertical pressing member (51). Then, the processing member (diagonal direction pressing member 61) moves toward the vertical direction pressing member (51) (and the workpiece W) (in the direction of arrow S in FIGS. 6 and 7), or the vertical direction pressing member (51) ( And the movement away from the workpiece W (in the direction of arrow R in FIG. 8) can be automatically controlled by using moving members (cylinder 62 and piston 63) for the processing member (oblique direction pressing member 61). Is possible.
Therefore, according to the present invention, the above-described clip (C) can be easily and accurately processed by automatic control.

It is a lineblock diagram showing the forming device concerning the embodiment of the present invention. It is a perspective view of the clip shape | molded by this invention. It is a perspective view which shows the use condition of the clip of FIG. It is a perspective view which shows the state (work) before the clip of FIG. 2 is shape | molded. It is process explanatory drawing explaining the 1st process in embodiment. It is process explanatory drawing explaining a 2nd process. It is process explanatory drawing explaining a 3rd process. It is process explanatory drawing explaining a 4th process. It is process explanatory drawing explaining a 5th process. It is a flowchart explaining shaping | molding in embodiment. It is a block diagram of the workpiece sampling apparatus used by embodiment. FIG. 12 is an arrow A view of FIG. 11. It is a B arrow directional view of FIG. It is process explanatory drawing explaining the next process of FIG. It is process explanatory drawing explaining the next process of FIG. 15 is a process explanatory diagram for explaining the next process. It is a flowchart explaining the workpiece extraction in embodiment. It is a line arrangement | positioning figure which shows the line which arrange | positions the workpiece | work used by embodiment appropriately. It is explanatory drawing explaining the workpiece | work direction determination mechanism in FIG. It is explanatory drawing explaining the workpiece | work reversing mechanism in FIG. It is explanatory drawing for demonstrating the detail of the A section in FIG. It is process drawing which shows operation | movement of a workpiece | work reversing mechanism. It is a schematic diagram of the workpiece conveyance apparatus in FIG. It is a side view of the clip in a prior art.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
Prior to description of the molding apparatus 100 (see FIG. 1) according to the illustrated embodiment, a clip manufactured by the molding apparatus 100 according to the illustrated embodiment will be described with reference to FIGS.
As described above, FIG. 2 shows the clip C manufactured using the molding apparatus 100 according to the illustrated embodiment. FIG. 3 shows a state in which the clip C in FIG. 2 is holding the pipe T that is the object to be held. Further, FIG. 4 shows a state before the clip C is formed, that is, the workpiece W.

2 and 3, the clip C is made of a metal (for example, a thin steel plate), and a metal portion Cs in which the state before forming (FIG. 4: the state of the workpiece W) is a belt-like flat plate, and an elastic portion Cp. have. Here, the elastic portion Cp covers the central portion in the longitudinal direction of the metal portion Cs and has a plurality of protrusions (seven in the illustrated example) Cr.
In FIG. 2, the metal portion Cs includes an annular curved portion (hereinafter referred to as “arc portion”) Cs1, a first flat plate portion Cs2 to which the circular arc portion Cs1 is connected, and a second flat plate portion Cs3. have.
As shown in FIG. 3, the angle θ1 (approximately 90 ° in the illustrated example) formed by one end portion Ce1 of the arc portion Cs1 and the first flat plate portion Cs2 is the other end portion Ce2 and the second flat plate portion. It is formed smaller than the angle θ2 (180 ° in the illustrated example) formed by the portion Cs3.

In FIG. 2, the protrusion Cr of the elastic member Cp has a rectangular parallelepiped shape. The elastic portion Cp covers the arc portion Cs1 of the metal portion Cs.
A bolt hole (round hole) Ch1 for attachment is formed in the first flat plate portion Cs2, and the bolt hole (round hole) Ch1 for attachment is formed in the vicinity of the end portion on the side separated from the arc portion Cs1. Yes.
A bolt hole (long hole) Ch2 for attachment is also formed in the second flat plate portion Cs3, and the bolt hole (long hole) Ch2 is formed in the vicinity of the end portion on the side separated from the arc portion Cs1.

FIG. 4 shows the clip material before forming, that is, the workpiece W. In FIG. 4, portions corresponding to the portions described with reference to FIGS. 2 and 3 are represented by replacing “C” in FIG. 2 and FIG. 3 with “W”. For example, the metal portion “Cs” in FIG. 2 is indicated by the symbol “Ws” in FIG.
In the clip material (work) W, the distances t1 and t2 from the surface (front surface, back surface) of the metal plate Ws to the edge of the protrusion Wr of the elastic portion Cp are the surface Fo (the lower surface in FIG. 4) of the metal plate Ws. The back surface Fi (upper surface in FIG. 4) is different.
In this specification, when the front surface Fo and the rear surface Fi in FIG. 4 are formed into the clip C (FIG. 2), the outer side in the radial direction of the arc portion Cs1 is the front surface (outer surface) Fo and the arc portion. The side of Cs1 that is radially inward is defined as the back surface (inner surface) Fi.

In the illustrated embodiment, for example, the distance (thickness) t1 from the surface Fo of the metal plate Ws to the edge of the protrusion Wr is 1 mm, and the distance (thickness) t2 from the back surface Fi of the metal plate Ws to the edge of the protrusion Wr. Is 2 mm. In this case, the thickness of the metal part (stainless steel plate) Ws is 0.8 to 1.0 mm.
The reason why the thickness t2 from the back surface Fi to the edge of the projection Wr is set larger than the thickness t1 from the surface Fo to the edge of the projection Wr is that the object (for example, piping) on the back surface Fi side (inside the clip) This is to securely grip the tube.
The dimensions t1 and t2 are variously changed according to the size and specification of the clip C. That is, the dimensions of t1 and t2 and the plate thickness of the metal portion Ws are not limited to the above-described numerical values.

With reference to FIG. 1, the clip shaping | molding apparatus shown with the code | symbol 100 as a whole is demonstrated.
The clip forming apparatus 100 includes an arcuate part (convex part) forming mechanism 50, a recessed part forming mechanism 60, and a support mechanism 70 on which the workpiece W is placed.

The arcuate part (convex part) forming mechanism 50 includes a vertical pressing member (for example, a die) 51, a first forming cylinder 52, and an attachment 55.
The first molding cylinder 52 has a piston 53 and a piston rod 54, and an attachment 55 is attached to the tip of the piston rod 54.
A vertical pressing member 51 is attached to the attachment 55 by known means (for example, bolts and nuts).
The vertical pressing member 51 is formed in an arc shape at the lower end side in FIG. 1 (hereinafter, the lower end side of the vertical pressing member 51 is referred to as “arc portion” 51a), and a V-shaped constricted portion (hereinafter referred to as “concave portion”). 51b) is formed. Here, the concave portion 51 b is formed on one side (right side in FIG. 1) in the region between the arc portion 51 a at the lower end of the vertical direction pressing member 51 and the attachment portion to the attachment 55.
The vertical pressing member 51 has a function of moving vertically downward and deforming the workpiece W into an arc shape by the arc portion 51a.

A piston upper limit position detection sensor 56 and a piston lower limit position detection sensor 57 are provided in the vicinity of both axial ends of the first molding cylinder 52.
The piston upper limit position detection sensor 56 has a function of detecting that the piston 53 is at the upper limit position in the cylinder, and is constituted by, for example, a known cylinder switch.
The piston lower limit position detection sensor 57 has a function of detecting that the piston 53 is at the lower limit position in the cylinder, and is constituted by, for example, a known cylinder switch.

The recess forming mechanism 60 includes an oblique direction pressing member (for example, a bevel) 61, a second forming cylinder 62, and an attachment 65.
The second molding cylinder 62 has a piston 63 and a piston rod 64. An attachment 65 is attached to the tip of the piston rod 64, and an oblique direction pressing member 61 is connected to the attachment 65 by a known means (for example, a bolt or a bolt). Nuts).

A contraction side position detection sensor 66 and an extension side position detection sensor 67 are provided in the vicinity of both end portions in the axial direction of the second molding cylinder 62.
The contraction side position detection sensor 66 has a function of detecting that the piston 63 is at the contraction side limit position in the cylinder, and is configured by, for example, a known cylinder switch.
The extension side position detection sensor 67 has a function of detecting that the piston 63 is at the extension side limit position in the cylinder, and is constituted by, for example, a known cylinder switch.

The oblique direction pressing member 61 is formed in a wedge shape as a whole, and its tip is formed in a small arc.
The second molding cylinder 62 has an oblique direction pressing member 61 attached to the tip of the piston rod 64 via an attachment 65. And it arrange | positions so that the diagonal direction pressing member 61 may be located diagonally below.
In FIG. 3, the recess forming mechanism 60 is formed on one end portion Ce1 of the arc portion Cs1 of the clip C, that is, on the side forming a small angle θ1 (approximately 90 ° in the illustrated example) with the first flat plate portion Cs2. Operates when forming the end.

When one end portion Ce1 (see FIGS. 2 and 3) of the arc portion Cs1 of the clip C is formed, in FIG. 1, the second forming cylinder 62 of the recess forming mechanism 60 extends obliquely downward. The workpiece W is sandwiched between the concave portion 51b of the vertical direction pressing member 51 and the wedge-shaped oblique direction pressing member 61 and is pushed by the oblique direction pressing member 61, whereby the end portion Ce1 of the clip C is formed.
In other words, when the second forming cylinder 62 moves the oblique direction pressing member 61 toward the vertical direction pressing member 51 (or the workpiece W bent by the vertical direction pressing member 51), the oblique direction pressing member 61 is moved. However, it has the function to move to the position which engages with the recessed part 51b of the vertical direction pressing member 51.

In FIG. 1, the support mechanism 70 includes a pair of forming rollers 71, a pair of horizontal cylinders 72, a lower presser 74, and a vertical cylinder 75.
The forming roller 71 is rotatably attached to the tip of the piston rod 73 in the horizontal cylinder 72. A pair of units including the forming roller 71, the horizontal cylinder 72, and the piston rod 73 are arranged on a straight line so that the forming rollers 71 face each other.
The lower presser 74 is fixed to the tip of the piston rod 76 in the vertical cylinder 75 (the upper end in FIG. 1).

Both the piston (not shown) of the pair of horizontal cylinders 72 and the piston (not shown) of the vertical cylinder 75 have a structure in which the pressure chamber on the side opposite to the piston rod is sealed, and the reciprocating motion in the cylinder is not caused. It is configured as a control type and functions like a so-called “air spring”.
The pair of forming rollers 71 is configured to be movable in the horizontal direction. When the vertical pressing member 51 moves downward in the vertical direction, the pair of forming rollers 71 moves to a position where they are separated from each other with the vertical pressing member 51 interposed therebetween.

When the vertical pressing member 51 moves downward in the vertical direction, the lower presser 74 can move to the position moved downward. That is, when the vertical pressing member 51 moves downward in the vertical direction, the lower presser 74 and the vertical pressing member 51 are in a positional relationship such that the workpiece W is interposed therebetween.
The lower presser 74 is configured to move downward (sink by a predetermined amount) because the elastic member Wr covered with the work is prevented from being crushed and is deformed by molding. This is for stably holding.

Next, with reference to FIGS. 5-9, the aspect which manufactures the clip C using the shaping | molding apparatus 100 is demonstrated based on the flowchart of FIG.
In step S1 of FIG. 10, until it is detected by a sensor (not shown) that the work W is placed on the pair of forming rollers 71, that is, until the work set completion signal is turned “ON”. Wait in the state indicated by.
If it is detected that the workpiece W is placed on the pair of forming rollers 71 and the workpiece setting completion signal is “ON” (YES in step S1), the process proceeds to step S2.

In step S2, as shown in FIG. 6, the piston 53 of the first molding cylinder 52 is moved downward to lower the vertical pressing member 51 (operation of arrow D in FIG. 6). As a result of lowering the vertical pressing member 51, as shown in FIG. 6, the center portion of the workpiece W is pushed downward, and the arc portion Cs1 in the clip C is formed.
10, the lower limit sensor 57 built in the first molding cylinder 52 determines whether or not the piston 53 of the first molding cylinder 52 shown in FIG. 1 has reached the lower limit position. Judgment is made based on whether or not it is “ON”. If the lower limit sensor 57 is not “ON” (step S3 is NO), the process returns to step S2, and step S2 is repeated to further lower the vertical pressing member 51 (arrow D in FIG. 6). On the other hand, if the vertical pressing member 51 reaches the lower limit position, the lower limit sensor 57 is “ON” (YES in step S3), and the process proceeds to step S4.

In step S4, the lowering of the piston 53 of the first molding cylinder 52 is stopped, the lowering of the vertical pressing member 51 (movement in the direction D in FIG. 6) is stopped, and the process proceeds to step S5.
In step S5, the piston 63 of the second forming cylinder 62 is advanced (downward in the left direction in FIG. 1), and the oblique direction pressing member 61 is advanced obliquely downward (inclined in the direction of arrow S in FIGS. 6 and 7). The direction pressing member 61 is moved). One end portion of the arc portion Cs1 (see FIGS. 2 and 3) in the clip C by causing the oblique direction pressing member 61 to advance obliquely downward and engage (push in) the concave portion 51b of the vertical direction pressing member 51. Ce1 is molded.

In step S6 of FIG. 10, the extension-side sensor 67 built in the second molding cylinder 62 determines whether or not the oblique direction pressing member 61 has moved to a position where it engages with the concave portion 51b of the vertical direction pressing member 51. Judgment is made based on whether or not it is “ON”.
If the extension-side sensor 67 is not yet “ON” (NO in step S6), the process returns to step S5 to move the oblique direction pressing member 61 to the position where it engages with the recess 51b, and after step S5. Is repeated to advance the piston 63 of the second molding cylinder 62.
On the other hand, when the oblique direction pressing member 61 reaches the position where it engages with the concave portion 51b of the vertical direction pressing member 51, the extension-side sensor 67 is “ON” (step S6 is YES, the state of FIG. 7). Proceed to step S7. In step S7, the piston 63 of the second molding cylinder 62 is retracted (the operation indicated by the arrow R in FIG. 8) to separate the oblique direction pressing member 61 from the recess 51b (in FIGS. 1 and 8, the oblique direction pressing member). 61 moves backward in the direction of arrow R).

In step S8 of FIG. 10, whether or not the piston 63 of the second molding cylinder 62 has returned to the position before step S5 is determined by whether or not the contraction side sensor 66 built in the second molding cylinder 62 is “ON”. Judgment is made based on whether or not
If the piston 63 of the second molding cylinder 62 has not returned to the position before step S5 and the contraction side sensor 66 is not “ON” (step S8 is NO), the process returns to step S7, and the piston 63 moves to the arrow R. Step S7 and subsequent steps are repeated to continue the operation of moving in the direction (returning to the position before step S5).
If the piston 63 of the second molding cylinder 62 returns to the position before step S5, the contraction side sensor 66 is turned “ON” (step S8 is YES), and the process proceeds to step S9.
In step S9, the piston 63 of the second molding cylinder is stopped (the operation of R in FIG. 8 is stopped), and the process proceeds to step S10.

In step S10, the piston 53 of the first molding cylinder 52 starts to retreat (rise) (operation of arrow U in FIG. 9).
In step S11 of FIG. 10, whether or not the piston 53 of the first molding cylinder 52 has returned to the position of step S1 is turned ON by the upper limit sensor 56 built in the first molding cylinder 52. Judgment by whether or not.
If the piston 53 of the first molding cylinder 52 has not returned to the position of step S1, the upper limit sensor 56 is not "ON" (NO in step S11). In that case, the process returns to Step S10, and Step S10 and subsequent steps are repeated in order to continue the operation in which the piston 53 of the first molding cylinder 52 moves backward (rises).
On the other hand, if the piston 53 of the first molding cylinder 52 returns to the position of step S1, the upper limit side sensor 56 is “ON” (step S11 is YES), and the process proceeds to step S12. In step S12, the piston 53 of the first molding cylinder 52 is stopped and a workpiece removal signal is transmitted (step S13).
Thus, the procedure for forming one workpiece W into the clip C is completed.

FIGS. 11 to 17 show a procedure for pulling the workpiece W (clip C) after the molding process formed by the above-described molding apparatus 100 and attached to the vertical pressing member 51 away from the vertical pressing member 51. .
In FIG. 11 to FIG. 16, reference numeral 80 denotes a sampling jig that pulls the workpiece W (clip C) after forming attached to the vertical pressing member 51 away from the vertical pressing member 51. Note that, as described above, FIG. 12 is a B arrow diagram in FIG. 11, and FIG. 13 is an A arrow diagram in FIG.

In FIG. 11, the extraction jig 80 is composed of a first jig 81 and a second jig 82. The first jig 81 and the second jig 82 are formed symmetrically in FIG. 11 except for the notches 81c and 82c.
In FIG. 11, the first jig 81 located on the left side is a hexahedron-shaped casing in which two adjacent surfaces are open (the two adjacent surfaces are not provided). It is composed of members. A notch 81c is formed on one wall surface 81b that is in contact with two adjacent and open two surfaces (a portion where the two adjacent surfaces are not provided).
Similarly, the second jig 82 is a casing having a hexahedron shape, and is constituted by a member having a shape in which two adjacent surfaces are open (no two adjacent surfaces are provided). A notch 82c is formed in one wall surface 82b that is in contact with two adjacent and open two surfaces (a portion where the two adjacent surfaces are not provided).
In FIG. 11, the code | symbol 81a has shown the surface facing the surface which has the notch 81c in the 1st jig 81. FIG. Moreover, the code | symbol 82a has shown the surface facing the surface which has the notch 82c in the 2nd jig 82. FIG.

In FIG. 11, when the first jig 81 and the second jig 82 are brought into contact with each other, the continuous shape of both the notches 81 c and 82 c (configured by the edges thereof) is the contour of the vertical pressing member 51 ( The profile is similar to the profile, and is formed so as to be outside (for example, 1 mm outside) from the outline of the vertical direction pressing member 51 (to be larger).
When the extraction jig 80 constituted by the first jig 81 and the second jig 82 is closed, the contour of the vertical pressing member 51 is notched 81c with the jigs 81 and 82 engaged. , 82 c is smaller than the space formed by the vertical pressing member 51 without interfering with the notches 81 c, 82 c, the first jig 81 and the second jig 82 (with respect to the vertical pressing member 51). ) It can move in the direction of arrow A.

On the other hand, as shown in FIG. 14, the continuous shape of the notches 81 c and 82 c (consisting of the edges thereof) is the elasticity of the workpiece W (clip C) after the forming process attached to the vertical pressing member 51. It is formed so as to be inside (smaller) than the protrusion of the member (the protrusion Cr of the elastic member Cp in FIGS. 2 and 3).
Therefore, when the first jig 81 and the second jig 82 are moved in the direction of arrow A in FIG. 11 with respect to the vertical direction pressing member 51, the protrusion of the elastic member on the workpiece W (clip C) after the forming process is formed. It contacts the notches 81c and 82c (edges thereof). As a result, the molded workpiece W (clip C) is displaced with respect to the vertical pressing member 51 and is pulled out of the vertical pressing member 51.

Next, referring to FIG. 11 to FIG. 16, a procedure for extracting the formed clip C (or workpiece: indicated by the symbol W in FIG. 11) from the vertical pressing member 51 based on the flowchart of FIG. 17. ,explain.
In step S21 of FIG. 17, it is determined whether or not the work set extraction signal is "ON". As described above, the workpiece removal signal is transmitted at the final stage (step S13 in FIG. 10) of the procedure of forming one workpiece W into the clip C.
The process waits until the work set removal signal is “ON” (NO in step S21). If the work set removal signal is “ON” (YES in step S21), the process proceeds to step S22.

In step S <b> 22, it is determined whether the left and right extraction jigs 81 and 82 have reached a predetermined position sandwiching the vertical direction pressing member 51. Here, in FIG. 11, the extraction jig 80 indicated by two-dot chain lines C and D indicates a state on the trajectory to the clip extraction position in the molding apparatus 100. That is, in step S22, the extraction jig 80 moves from the position C in FIG. 11 to the position D, and then moves to the clip extraction position indicated by the solid line.
In step S22 of FIG. 17, if the left and right sampling jigs 81 and 82 have reached a predetermined position sandwiching the vertical pressing member 51 (YES in step S22), the process proceeds to step S23.

In step S23, the left and right jigs 81 and 82 are closed from the state shown by the solid line in FIG. 11, and the vertical pressing member 51 and the workpiece W (clip C) are sandwiched (see FIG. 14). In step S24, the left and right jigs 81 and 82 move in parallel to the front side of the paper in FIG. 14 (the direction of arrow B in FIG. 11) (state in FIG. 15). Then, the process proceeds to step S24.
As described above, when the left and right jigs 81 and 82 are closed, only the vertical pressing member 51 can pass through the notches 81c and 82c formed in the left and right jigs 81 and 82. However, since the molded workpiece W (clip C) abuts against the edges of the notches 81c and 82c, the notches 81c and 82c do not pass and remain in the jigs 81 and 82 and are accommodated in the jig 80. It will be in the state.

In step S <b> 24 of FIG. 17, the extraction jig 80 that accommodates the workpiece W (clip C) molded therein moves to a position directly above the product bucket 83.
In step S <b> 25, it is determined whether or not the extraction jig 80 has moved to a position directly above the product bucket 83. If the extraction jig 80 has moved to a position directly above the product bucket 83 (YES in step S25: state shown in FIG. 16), the process proceeds to step S26.
In step S <b> 26, the left and right extraction jigs 81 and 82 are separated (opened), and the formed work W (clip C) falls into the bucket 83. Thereby, a series of procedures for extracting the molded workpiece W (clip C) from the vertical pressing member 51 is completed.

When the workpiece W is molded by the molding apparatus 100 of FIG. 1, the workpiece W needs to be placed on the workpiece support unit 70 of the molding apparatus 100 in a predetermined posture.
A line Ls shown in FIG. 18 is a line for setting the workpiece W at a predetermined position on the pair of molding rollers 71 in the workpiece support unit 70 of the molding apparatus 100 in a predetermined posture. The workpiece W supply line can be suitably combined with 100.
Next, the configuration of the workpiece supply line Ls and the movement of the workpiece W in the workpiece supply line Ls will be described with reference to FIG.

In FIG. 18, the workpiece supply line Ls includes a parts feeder 1, a material input box 2, belt conveyors 3 CA, 3 CB, 3 CC, 3 CD, a workpiece orientation determination mechanism 10, a workpiece orientation reversing mechanism 20, and a workpiece transfer device 30. And a work handling device 40.
In the workpiece supply line Ls, the workpiece W moves from the leftmost part feeder 1 toward the workpiece handling device 40 (from the left side to the right side in FIG. 18).
The parts feeder 1 has a work storage part 1i and a work discharge part 1o.
In FIG. 18, the belt conveyors 3CA, 3CB, 3CC, and 3CD are arranged in the order of 3CA, 3CB, 3CC, and 3CD from the left side to the right side, and are arranged in a straight line.

A workpiece orientation determining mechanism 10 is disposed above the leftmost belt conveyor 3CA.
A turntable TT is disposed below the second belt conveyor 3CB from the left. The turntable TT is provided with a rotation shaft at the center in the longitudinal direction of the belt conveyor 3CB, and is configured to rotate the belt conveyor 3CB by a half rotation (180 °) in the horizontal direction.
A work direction reversing mechanism 20 is disposed above the third belt conveyor 3CC from the left.
A work transfer device 30 is arranged on the rightmost belt conveyor 3CD. The workpiece transfer device 30 has a function of carrying the workpiece W on the belt conveyor 3CD to the workpiece handling device 40. The work handling device 40 is configured to be movable in a direction orthogonal to the longitudinal direction of the belt conveyor 3CD.

While the workpiece supply line Ls is in operation, the parts feeder 1 vibrates by a known means.
When an appropriate amount of workpiece W is loaded from the material loading box 2 into the workpiece accommodating portion 1i of the parts feeder 1, the workpiece W loaded into the workpiece accommodating portion 1i is vibrated to the inner periphery 1iw of the workpiece accommodating portion 1i. The formed spiral slopes 1s are raised one by one.
When the workpiece W rises up the spiral slope 1s, the side portion of the workpiece W is in contact with the inner peripheral surface 1iw of the workpiece accommodating portion 1i. In this state, the workpiece W is supplied from the workpiece discharge unit 1o to the conveyor 3CA.
The width of the workpiece discharge unit 1o is set to a minimum width for smoothly discharging the workpiece W. The workpiece W supplied from the parts feeder 1 to the conveyor 3CA moves on the conveyor 3CA with the center line of the workpiece W coincident with or parallel to the center line of the conveyor 3CA.

FIG. 19 shows the workpiece orientation determining mechanism 10 disposed on the conveyor 3CA.
In FIG. 19, the workpiece orientation determination mechanism 10 includes a piston rod 11 of a first cylinder (not shown), a horizontal support member 12, a second cylinder 13, a pair of measuring elements 15 </ b> A and 15 </ b> B, and a proximity sensor 16. It has.
The horizontal support member 12 is fixed to the tip of the piston rod 11, the longitudinal direction is horizontal, and the second cylinder 13 is fixed horizontally at one end (left end portion in FIG. 19).

The upper end of one measuring element 15A is attached to the tip of the piston rod 14 of the second cylinder 13.
At the other end of the horizontal support member 12 (the right end portion in FIG. 19), the upper end of the other probe 15B is attached.
In the vicinity of the tips of the pair of measuring elements 15A and 15B, the surfaces of the measuring elements 15A and 15B that are separated from each other are inclined with respect to the vertical direction like the tip of a caliper (measuring instrument). It is formed to become thinner as it approaches 15Be.
If the first cylinder (not shown) is operated in the vertical direction, the entire workpiece orientation determining mechanism 10 moves up and down.

The workpiece orientation determination mechanism 10 on the conveyor 3CA determines whether or not the posture of the workpiece W on the conveyor 3CA is appropriate (whether the front in the traveling direction is a round hole Wh1 or a long hole Wh2: is the surface Fo facing upward? Whether the rear surface Fi: refer to FIG. 4).
Then, based on the determination result of the workpiece orientation determination mechanism 10, whether or not to act on the turntable TT of the conveyor 3CB and / or the workpiece orientation reversing mechanism 20 of the conveyor 3CC by a control device (not shown) in the workpiece supply line Ls. A control signal is transmitted.

In the illustrated embodiment, the proper posture of the workpiece W on the roller 71 of the molding apparatus 100 is such that the round hole Wh1 is positioned forward in the traveling direction and the back surface Fi faces upward. Note that the conditions for placing the workpiece W in an appropriate posture on the roller 71 of the molding apparatus 100 are not limited to the above.
In the case illustrated in FIG. 19, the work W on the first conveyor 3CA has the back surface Fi (see FIG. 4) facing upward (the front surface Fo is in contact with the upper surface of the conveyor), but the long hole Wh2. (See FIG. 4) is located in the forward direction.
Although illustration is omitted, the shape of the hole and the size of the hole can be determined using optical means instead of the second cylinder 13 and the measuring elements 15A and 15B.

Whether or not the posture of the workpiece W by the workpiece orientation determination mechanism 10 is appropriate (whether the front in the traveling direction is the round hole Wh1 or the long hole Wh2: the front is the front Fo or the back Fi: the top: see FIG. 4) The mode of determination is as follows.
First, when the workpiece W reaches a predetermined position on the conveyor 3CA, the conveyor 3CA stops the operation of conveying the workpiece W.
Then, the entire workpiece orientation determining mechanism 10 moves downward in the vertical direction.

When the workpiece orientation determination mechanism 10 is lowered, the probe 15A and 15B of the workpiece orientation determination mechanism 10 is inserted into a hole (either the round hole Wh1 or the long hole Wh2) located in front of the workpiece W in the traveling direction. .
When the workpiece orientation determination mechanism 10 is lowered, the proximity sensor 16 comes into contact with a plurality of protrusions Wr formed on the elastic member of the workpiece W. When the proximity sensor 16 contacts the plurality of protrusions Wr of the workpiece W, the descent of the workpiece orientation determination mechanism 10 is stopped.

Next, the second cylinder 13 is actuated and the piston rod 14 begins to contract. Then, the measuring element 15A comes into contact with the inner peripheral surface of the hole of the work W, and the second cylinder 13 stops its operation. Thereby, the outer sides of the tip portions of the pair of measuring elements 15A and 15B are in contact with both ends in the front-rear direction (longitudinal direction of the conveyor 3CA: left-right direction in FIG. 19) of the hole positioned in front of the workpiece W in the traveling direction. .
The second cylinder 13 has a side length function for determining the position of a piston (the piston rod 14 is connected to the piston) (not shown). Thereby, when the second cylinder 13 stops the contraction operation, the diameter of the hole formed in the workpiece W or the longitudinal distance E (the longitudinal distance of the conveyor 3CA: the lateral distance in FIG. 19) is measured. The

As described above, in the case illustrated in FIG. 19, the proper posture is that the long hole Wh2 (see FIG. 4) is positioned forward in the traveling direction.
The diameter of the hole formed in the forward direction of the workpiece W measured by the probe 15A, 15B, or the front-rear direction distance E (longitudinal direction distance of the conveyor 3CA: left-right direction distance in FIG. 19) is the long hole Wh2. If the distance E is the distance in the front-rear direction of the round hole Wh1, it is determined that the posture is appropriate.
On the other hand, if the diameter E of the hole is the long hole Wh2, it is determined that the workpiece W is reversed in front and back with respect to an appropriate posture. Accordingly, in the case illustrated in FIG. 19, it is determined that the front and back are reversed with respect to the proper posture.

The proximity sensor 16 measures the distance from the surface of the protrusion Wr (upper surface in FIG. 19) to the metal plate Ws when the sensor tip comes into contact with the protrusion Wr of the elastic member of the workpiece W.
As described above with reference to FIG. 4, the thickness t1 from the front surface Fo to the edge of the protrusion Wr is different from the thickness t2 from the back surface Fi to the edge of the protrusion Wr (t2> t1).
As described above, in the illustrated example, it is the proper posture that the back surface Fi is facing upward. Therefore, if the front and back are opposite to the proper posture, the protrusion Wr measured by the proximity sensor 16 is The distance from the surface (the upper surface in FIG. 19) to the metal plate Ws is smaller than that in a proper posture.
Thereby, the proximity sensor 16 determines whether the workpiece W is in an appropriate posture or whether the front and back are in the opposite state.

When the measurement with the measuring elements 15A and 15B and the measurement with the proximity sensor 16 are completed, the piston rod 14 returns to the original position (the piston rod 14 extends). At the same time, the first cylinder (not shown) is operated, and the entire workpiece orientation determining mechanism 10 moves upward in the vertical direction and returns to the original position.
Whether or not the posture of the workpiece W is proper is determined based on the measurement results of the measuring elements 15A and 15B and the measurement result of the proximity sensor 16, and the determination result is based on the control unit and workpiece orientation (not shown) of the turntable TT in the next process. It is transmitted to a control unit (not shown) of the reversing mechanism 20.

Here, there are the following four cases in the direction (posture) of the workpiece W on the conveyor 3CA.
First case: a case where the round hole Wh1 is positioned in the traveling direction and the back surface Fi is facing upward (a case where the posture of the workpiece W is appropriate).
Second case: a case where the round hole Wh1 is positioned in the traveling direction and the surface Fo faces upward (a case where the front and back of the workpiece W are appropriate, but the front and back are inappropriate).
Third case: a case in which the long hole Wh2 is positioned in the traveling direction and the back surface Fi faces upward (a case where the front and back of the workpiece W are appropriate, but the front and back are inappropriate).
Fourth case: a case in which the long hole Wh2 is positioned in the traveling direction and the surface Fo faces upward (a case where the front and back and the front and back of the workpiece W are both inappropriate).

In the first case, it is not necessary to correct the orientation of the workpiece W. Accordingly, the workpiece W is conveyed as it is to the conveyor 3CD.
In the case of the second case, the work W is reversed in the horizontal plane by the turntable TT of the conveyor 3CB so that both the front and back and the front and back of the work W are in an inappropriate state, and then the work direction reversal described later is performed. Inverted by mechanism 20.
In the case of the third case, the posture of the workpiece W is appropriately corrected by changing the direction of the workpiece W in the horizontal plane by the turntable TT of the conveyor 3CB.
In the case of the fourth case, the work W is reversed by operating only the workpiece direction reversing mechanism 20 without changing the direction in the horizontal plane by the turntable TT.
The conveyor 3CB may be omitted, the turntable TT may be disposed below the conveyor 3CA, and the conveyor 3CA may be rotated by the turntable TT.

20 and 21 show the work direction reversing mechanism 20. Here, FIG. 21 shows a portion A of FIG. 20 from an oblique direction.
In FIG. 20, the work direction reversing mechanism 20 includes an elevating air cylinder 21, a chucking air cylinder 23, and a pair of rotating air cylinders 26.
The chucking air cylinder 23 is attached to the tip of the piston rod 22 of the lifting air cylinder 21. The chucking air cylinder 23 is configured as a so-called “two rod type”, and is configured such that a pair of piston rods 24 extend and contract simultaneously from both ends of the cylinder 23.

The upper ends of the vertical support members 25 are fixed to the ends of the pair of piston rods 24, respectively. A rotating air cylinder 26 is attached to the lower end portion of the vertical support member 25. The rotating air cylinders 26 in the pair of vertical support members 25 are arranged so as to face each other.
A chucking gripping member 28 is attached to the tip of the rotating shaft 27 of the pair of rotating air cylinders 26.
Although illustration is omitted, the chucking air cylinder 23 can be configured to extend and contract only one rod.
Alternatively, a pair of rotating air cylinders 23 may be provided only on one vertical support member 25, and a rotatable (idler type) gripping member may be provided on the opposing vertical member 25.

The operation of the work direction reversing mechanism 20 will be described with reference to FIGS.
When there is no workpiece W to be reversed by the workpiece direction reversing mechanism 20, the elevating air cylinder 21 contracts, and the members below the chucking air cylinder 23 are waiting above the conveyor 3CC.
If the workpiece W to be reversed is detected by the workpiece direction reversing mechanism 20, the lifting air cylinder 21 is extended so that the center of the rotating air cylinder 26 of the workpiece direction reversing mechanism 20 is in the workpiece W on the conveyor 3CC. The work direction reversing mechanism 20 is lowered until the center position of the thickness is reached. At that stage, the chucking air cylinder 23 is extended, and the piston rod 24 is in an extended state.

22, the chucking air cylinder 23 contracts and presses and grips the side portion of the workpiece W with the tip of the chucking gripping member 28 (see FIG. 21).
In the process indicated by reference symbol B in FIG. 22, the lifting air cylinder 21 is contracted to raise the entire workpiece direction reversing mechanism 20 (operation of arrow U in B in FIG. 22). This is to prevent the workpiece W from interfering with the conveyor 3CC even if the rotating air cylinder 26 is rotated.

In the process indicated by reference numeral C in FIG. 22, the rotating air cylinder 26 is rotated half a turn (180 °). Thereby, the front and back and the front and back of the workpiece W are reversed.
In the process indicated by reference sign D in FIG. 22, the lifting air cylinder 21 is extended to lower the entire work direction reversing mechanism 20 (operation of arrow D in D of FIG. 22). Then, the workpiece W is placed in the shape of the conveyor 3CC, the chucking air cylinder 23 is extended, and the gripping member 28 is separated from the workpiece W.
Thereby, the reversing operation of the work W by the work direction reversing mechanism 20 is completed.

FIG. 23 shows the front of the workpiece transfer device 30.
In FIG. 23, the workpiece transfer device 30 includes a horizontal portion 31, a first vertical portion 32, a second vertical portion 33, and a cylinder mechanism (not shown).
The workpiece transfer device 30 is configured to be movable in the vertical direction (in the direction of arrow V) and the horizontal direction (in the direction of arrow H) in FIG.

The first vertical portion 32 extends to the left end of the horizontal portion 31 in FIG. 23 so as to hang down to the horizontal portion 31, and the horizontal direction of FIG. Direction).
The second vertical portion 33 is configured to be movable in the left-right direction (arrow H direction) in FIG. 23 along the horizontal portion 31 by a cylinder mechanism (not shown).
In the second vertical portion 33, a notch 33v (a V-shaped notch in the illustrated example) is formed on a surface (left surface in FIG. 33) 33i facing the first vertical portion 32. .

With reference to FIGS. 18 and 23, the operation of the workpiece transfer apparatus 30 will be described.
Before the work W reaches the conveyor 3CD, the work transfer device 30 stands by just above the conveyor 3CD. When it is detected by a sensor (not shown) that the workpiece W has reached the conveyor 3CD, the conveyor 3CD stops.
When the conveyor 3CD is stopped, the first vertical portion 32 and the second vertical portion 33 of the workpiece transfer device 30 are sufficiently opened (the space between the first vertical portion 32 and the second vertical portion 33 is sufficiently widened). In this state, the workpiece transfer device 30 is lowered to a position straddling the workpiece W on the conveyor 3CD by means not shown. Then, the first vertical part 32 and the second vertical part 33 move in the left-right direction (arrow H direction) in FIG. 23 along the horizontal part 31 so that the first vertical part 32 and the second vertical part 33 are close to each other. The workpiece W is held between the V-shaped notch 33v 33 and the surface 32i of the first vertical portion 32.

The workpiece transfer device 30 that sandwiches the workpiece W is raised to a predetermined height by a moving unit (not shown), and starts horizontal movement in a direction perpendicular to the workpiece supply line Ls and away from the workpiece supply line Ls. (See FIG. 18).
The workpiece transfer device 30 stops horizontal movement above the workpiece handling device 40 and places the workpiece W at a predetermined position of the workpiece handling device 40. Then, it rises again, moves horizontally, and returns to its original position.

  The workpiece handling apparatus 40 on which the workpiece W is placed moves straight to the above-described molding apparatus 100 by a moving unit (not shown), and is placed at a predetermined position on the pair of molding rollers 71 in the molding apparatus 100 using a unit (not shown). Then, the work W is placed (handling: set).

According to the illustrated embodiment, when the vertical pressing member 51 moves downward in the vertical direction, a pair of forming rollers 71 that can move in the horizontal direction to positions spaced apart from each other across the vertical pressing member 51; A lower presser 74 is provided. Here, when the vertical pressing member 51 moves downward in the vertical direction, the lower presser 74 follows the vertical pressing member 51 and moves to a position where the vertical pressing member 51 has moved downward in the vertical direction. . At that time, the lower presser 74 and the vertical pressing member 51 are in contact with each other with the workpiece W interposed therebetween. And the vertical direction pressing member 51 has the recessed part 51b, The outline is the same as the curved part Cs1 of the clip C, and a part of flat plate part Cs2 and Cs3 which follow the both ends.
Therefore, when the vertical pressing member 51 is moved downward in the vertical direction, the workpiece W is held by the pair of forming rollers 71 and the lower presser 74, and the clip C is bent along the shape of the tip 51a of the vertical pressing member 51. It is deformed into the shape of the portion Cs1.

  Further, according to the illustrated embodiment, the shape of the concave portion 51b of the vertical direction pressing member 51 is one end portion of the curved portion of the workpiece W (one end portion Ce1 of the curved portion), Since the angle θ1 formed with the flat plate portion Cs2 is equal to the shape of the small end portion), when the vertical pressing member 51 is engaged with the concave portion 51b, the flat plate portion Cs2 of the annularly curved portion Cs1 of the clip C is formed. The end portion Ce1 on the side where the angle θ1 is small is easily processed.

Therefore, according to the illustrated embodiment, the vertical direction pressing member 51 is moved in the vertical direction, and the oblique direction pressing member 61 is moved toward the concave portion 51b of the vertical direction pressing member 51, whereby an annularly curved portion. Cs1 and one end portion Ce1 of the curved portion Cs1 (the end portion where the angle θ1 formed by the flat plate portion Cs2 is smaller than the angle θ2 formed by the other end portion Ce2 and the flat plate portion Cs3) are formed, and the clip C Is formed.
Here, the vertical movement of the vertical pressing member 51 can be automatically controlled by using the first molding cylinder 52 and the piston 53.
The movement of the oblique direction pressing member 61 can be automatically controlled by using the second molding cylinder 62 and the piston 63.
Therefore, according to the illustrated embodiment, the above-described clip C can be processed easily and accurately by automatic control.

It should be noted that the illustrated embodiment is merely an example, and is not a description to limit the technical scope of the present invention.
For example, in the illustrated embodiment, as shown in FIG. 18, the conveyor 3CB is configured to be rotatable by the turntable TT, but the conveyor 3CB is omitted and the turntable TT is disposed below the conveyor 3CA. The conveyor 3CA may be configured to be rotatable by the turntable TT.

DESCRIPTION OF SYMBOLS 1 ... Parts feeder 2 ... Material input box 3CA-3CD ... Belt conveyor 10 ... Work direction determination mechanism 13 ... 2nd cylinder 15A, 15B ... Measuring element 16 ... Proximity sensor 20 ... Work direction reversing mechanism 21 ... Elevating air cylinder 23 ... Chucking air cylinder 26 ... Rotating air cylinder 30 ... Work conveying device 40 ... Work handling device 50 ... Projection forming mechanism 51... Vertical pressing member 51 a... Arc portion 51 b... Recess 52... First molding cylinder 53. Diagonal direction pressing member 62 ... second shaping cylinder 63 ... piston 70 ... support mechanism 71 ... forming roller 72 ... horizontal cylinder 74 ... downward pressing 75 ... vertical cylinder 80 ... draw-off jig C ... clip W ... workpiece 100 ... molding device

Claims (2)

It has an annularly curved portion and a flat plate portion to which the curved portion is connected, and the angle formed by one end portion of the curved portion and the flat plate portion is larger than the angle formed by the other end portion and the flat plate portion. In a molding apparatus for molding a small clip, a support member on which a workpiece to be processed is placed, a vertical pressing member that moves in the vertical direction to deform the workpiece, and a vertical direction that moves down in the vertical direction A processing member that moves toward the pressing member, a moving member for the vertical pressing member that reciprocates the vertical pressing member in the vertical direction, and a direction toward the vertical pressing member that moves the processing member vertically downward A moving member for a processing member that reciprocates in a direction away from the vertical direction, and the support member is positioned to be separated from each other across the vertical direction pressing member when the vertical direction pressing member moves downward in the vertical direction. Horizontal A pair of movable members and a vertically movable member that descends to a position where the vertical pressing member has moved downward in the vertical direction, the vertical pressing member has a recess, and its contour is The curved portion of the clip is the same as a part of the flat plate portion continuous to both ends thereof, and the shape of the concave portion is equal to the shape of the one end portion at the curved portion, and the moving member for the processing member Has a function of moving to a position where the processing member engages with the concave portion of the vertical pressing member when the processing member is moved toward the vertical pressing member, and the vertical pressing member and the processing member Has a jig for removing the workpiece deformed by the vertical pressing member surface, the jig has an opening, and the edge of the opening does not interfere with the vertical pressing member, but the vertical Attached to the direction pressing member surface Molding apparatus and the workpiece, characterized in that it is set to contact with the shape. It has an annularly curved portion and a flat plate portion to which the curved portion is connected, and the angle formed by one end portion of the curved portion and the flat plate portion is larger than the angle formed by the other end portion and the flat plate portion. In a manufacturing method of a clip configured to be small, a step of placing a workpiece to be processed on a support member, a step of moving a vertical pressing member in the vertical direction to deform the workpiece, and a member for processing downward in the vertical direction The supporting member includes a pair of members movable in the horizontal direction and a member movable in the vertical direction, and the vertical pressing member is moved in the vertical direction. In the step of moving and deforming the workpiece, when the vertical pressing member moves downward in the vertical direction, the pair of members movable in the horizontal direction move to positions separated from each other across the vertical pressing member, Vertically The movable member descends to a position where the vertical pressing member descends, the vertical pressing member has a recess, and the contour thereof is a curved portion of the clip and a flat plate portion continuous to both ends thereof. In the step of deforming the workpiece by moving the vertical pressing member in the vertical direction, the workpiece is deformed along the tip shape of the vertical pressing member, and the shape of the recess is In the step of moving the processing member toward the vertical pressing member which is equal to the shape of one end and moved downward in the vertical direction, the processing member engages with the concave portion of the vertical pressing member, and the vertical direction A step of extracting the workpiece deformed by the pressing member and the processing member from the surface of the vertical direction pressing member, and in the step of extracting, the vertical direction pressing member is surrounded by a jig, and the opening portion of the jig is While contact with the workpiece attached to the vertical direction pressing member surface without interfering the straight direction pressing member, manufacturing method characterized by moving in the horizontal direction.

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