JPH057964A - Apparatus for manufacturing coil formed product - Google Patents

Abstract

PURPOSE:To orderly carry a coil formed product under independent condition with out blocking by tangling with the other one at each spring foot and to continuously execute inspection work and packing work of each coil formed product after heat treatment. CONSTITUTION:A carrying device 3 composed of a feeding spiral body 4 providing a receiving part 41 directly receiving the coil formed product D from a core metal 13 in a coil forming apparatus 1 and a spiral feeding part 42 continuously wound to the receiving part 41, a guide body 5 supporting the spiral body 4 as rotatable and a driving device 6 drive-rotating the spiral body 4, is arranged so as to carry the coil formed product D with the above spiral body 4 without mutually blocking by tangling with the other one under setting the coil formed product D at the prescribed interval, and the heat treatment apparatus 2 is set on the way of this carrying course and uniform heat treatment can be executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a coil molded product having a coil portion and a pair of spring feet continuous with the coil portion.

[0002]

2. Description of the Related Art Conventionally, an apparatus for manufacturing a coil molded product of this kind has a core metal having a wire rod engaging portion and a winding surface on the outer periphery, and a feeding means for feeding the wire rod to the core metal through a guide member. Using a coil forming device equipped with a cutting blade for cutting the wire rod, the wire rod is moved in the axial direction while rotating the core rod in a state in which the wire rod is locked to the locking portion of the core metal in the coil forming device. Then, the wire is cut into a coil shape, and then, the wire is cut at a predetermined length position by the cutting blade to form a coil-formed product having a pair of spring legs continuous with the coil portion. There is.

When a wire material such as a piano wire or a stainless wire is used as a material for the coil molded product, 300 to 500 is used in order to remove the residual stress during the molding process.
Since heat treatment at ℃ is required, in this case, the coil molded products formed as described above are put together in a case, and the case is placed in a heat treatment furnace of a heat treatment apparatus. Heat treatment is performed, or each of the coil molded products cut by the coil forming device is dropped into an inclined gutter-shaped receiving body, and passes through the heat treating device while moving along the receiving body. By doing so, heat treatment is performed.

Further, since there is variation in the spring load of the coil portion and the relative angle of each spring foot in each coil molded product, as described above, after the heat treatment by the heat treatment apparatus, The quality inspection such as the load inspection of the coil portion and the relative angle inspection of each spring foot is performed.

[0005]

However, in the manufacturing apparatus as described above, the coil molded products are collectively accommodated in the case, or the coil molded products are gutter-shaped receiving members. Since it is to be passed through the heat treatment device by utilizing the inclination of the receiving body, in any case,
When the heat treatment is applied, there is a problem that the spring feet of each coil molded product are entangled with each other to form a dumpling, and the heat treatment of each coil molded product by the heat treatment device becomes uneven, leading to defective products. When conducting a quality inspection or wrapping of each coil molded product after the heat treatment by the heat treatment device, the entanglement of each coil molded product is disentangled, and the direction of each coil molded product is determined and aligned. However, there is also a problem that it is difficult to perform consistent automation of molding of the coil molded product, quality inspection, packaging, etc.

An object of the present invention is to prevent coil molded products formed by a coil forming device from being entangled with each other.
Each of these coil-formed products can be fed into the heat treatment apparatus in an orderly manner at an interval of a predetermined pitch, and the heat treatment of the coil-formed products can be carried out uniformly by the heat treatment apparatus. Further, after the heat treatment by the heat treatment apparatus, A coil molding product manufacturing apparatus that is very convenient for performing consistent automation of molding, quality inspection, packaging, etc. of each coil molded product without the need to untwist and align the coiled products To provide.

[0007]

In order to achieve the above object, the present invention forms a coil molded product D having a core metal 13 and a cutting blade 18 and having a coil portion A and a pair of spring legs B and C. A coil molding product manufacturing apparatus including a coil molding device (1) for heat treatment and a heat treatment device (2) for heat-treating the coil molded product (D), and a receiving section (41) for receiving the coil molded product (D) continuously to the core metal (13). A feed spiral 42 that is spirally wound and extends from the receiving portion 41 and that rotates concentrically with the core 13 and a guide that rotatably supports the feed spiral 42 of the feed spiral 4. A transport device 3 including a body 5 and a drive device 6 for driving and rotating the feed spiral 4 is provided, and the heat treatment device 2 is disposed in the transport path of the transport device 3.

A quality inspection device 8 for detecting the quality of the spring characteristics of the coil molded product D may be arranged on the exit side of the heat treatment device 2 in the transport path of the transport device 3.

Further, at the end of the transfer path of the transfer device 3, the coil molded product D is placed between a pair of long packaging materials.
You may make it arrange | position the wrapping device 9 which wraps in an individual object pinching state.

[0010]

When the coil-formed product D is formed by the above-described manufacturing apparatus, first, a wire is fed into the coil-forming apparatus 1, and the core metal is inserted from a predetermined length position on the rear side in the feeding direction of the wire. The coil portion A of the coil molded product D is formed via the coil 13, and after the coil portion A is formed, a portion of a predetermined length position is cut by the cutting blade 18 on the rear side of the coil portion A in the wire feeding direction. As a result, a pair of spring legs B and C continuous to the coil portion A are formed at the front and rear portions of the coil portion A in the feeding direction. In this way, the coil molded product D is formed by the coil forming device 1. Are sequentially molded. Then, as described above, the coil-formed products D sequentially formed by the coil-forming device 1 are received by the receiving portion 41 of the feed spiral 4 that constitutes the conveying device 3, and the guide portion is received from the receiving portion 41. The coil-formed articles D are successively fed into the spiral feed section 42 supported by the body 5, and the coil-formed articles D are respectively fed through the feed section 42 by the drive rotation of the feed section 42. The spring feet B and C are not separately entangled with other coil-formed products D, but are transported one by one in an independent state at a predetermined pitch interval and pass through the inside of the heat treatment apparatus 2. Therefore, this heat treatment is carried out. It is possible to uniformly heat-treat each coil-formed product D by the device 2, and it is possible to suppress the generation of defective products. Further, after the heat treatment by the heat-treatment device 2, the entanglement of each coil-formed product D is unraveled. Work becomes unnecessary, such as aligning, migration is easy to inspection step of performing a quality inspection of each of these coils moldings D.

Further, when the quality inspection device 8 for detecting the quality of the spring characteristic of the coil molded product D is disposed on the exit side of the heat treatment device 2 in the transportation path of the transportation device 3,
The quality inspection of the coil molded product D can be performed during the transportation of the transportation device 3 subsequent to the heat treatment by the heat treatment device 2. Therefore, the automation of the production of each coil molded product D becomes possible. Therefore, the workability can be improved and the combination of the coil molded products D with an assembly line such as a packaging machine or an automatic assembly machine can be easily performed.

Further, when the packaging device 9 for packaging the coil-formed product D in a sandwiched manner between a pair of long packaging materials is arranged at the end of the transport path of the transport device 3, the coil is not used. Since the heat treatment of the molded product D, the quality inspection, and the packaging work can be continuously performed, the automation of manufacturing each of the coil molded products D can be performed and the workability can be improved. Moreover, by using the coil molded product packaged by the packaging device in an assembly line of an automatic assembly machine or the like, each of the coil molded products D can be automatically supplied to an assembly place of the automatic assembly machine or the like. Therefore, it can be easily applied to an automatic assembly line.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The manufacturing apparatus shown in FIG. 1 forms a coil molded product D having a coil portion A and a pair of spring legs B and C continuous to the coil portion A as shown in FIG. A coil forming device 1, a heat treatment device 2 having a heat treatment furnace 21 for heat treating the coil formed product D, and a conveying device for conveying the coil formed product D formed by the coil forming device 1 into the heat treatment device 2. 3 and 3.

As shown in detail in FIGS. 2 and 3, the coil forming apparatus 1 includes a spindle shaft 12 inside a support cylinder 11.
Rotatably supports the bearing and the spindle shaft 1
At the tip end side of 2, a core metal 13 having a locking portion 13a of the wire S and a winding portion 13b is fixed in a protruding shape, and an outer peripheral portion of the spindle shaft 12 axially outwardly of the support cylinder 11. While forming the tooth portion 14 on the side, a drive gear 15 that meshes with the tooth portion 14 is provided on the radially outer side of the spindle shaft 12.
By rotating the drive gear 15 with a motor 16, the core metal 13 is rotated via the spindle shaft 12.

Further, in a direction orthogonal to the outer side of the core metal 13, as shown in FIG.
And a cutting blade 18 for cutting the wire S guided by the guide body 17 at a predetermined length position.
And a feeding device 19 for intermittently supplying the wire rod S to the core bar 13. The feeding device 19 includes a holding body 19a for the wire rod S, and the wire rod S for the holding body 19a.
Cam body 19b for elastically pressing the holder and these holding bodies 1
9a and a cam body 19b are provided with moving means (not shown) for reciprocating in the direction of the arrow in the figure with respect to the core metal 13, and the moving means moves the feeding device 19 to the core metal 13 side. Sometimes, the wire rod S is held by the cam body 19b in the holding body 19
The wire rod S is pressed and held to the side a to feed the wire rod S to the core bar 13 side, and when the feeding device 19 is returned, the press and hold of the wire rod S by the cam body 19b is released,
Only the feeding device 19 is moved back.

Then, after the wire rod S is fed from the guide body 17 to the core bar 13 side by the feed device 19 for a predetermined length, the wire rod S is locked to the locking portion 13a of the core bar 13. In the state, and at the feeding device 19, the wire S
By rotating the spindle shaft 12 and the cored bar 13 via the drive gear 15 while the motor 16 is being driven, the winding portion 13b of the cored bar 13 is rotated.
A coil portion A having a predetermined number of windings is formed on the upper portion, and the wire rod S is further fed by a predetermined length in a state where the core metal 13 is stopped rotating after the coil portion A is formed, and the wire is cut at a predetermined length position. The coil molded product D having a pair of spring legs B and C continuous on both sides of the coil portion A is molded by cutting with the blade 18, and then the feeding device 19 is retracted,
Prepare for the next molding of the coil molded product D. By repeating the above-mentioned work, the coil molded product D is sequentially molded by the coil molding device 1.

The coil-formed products D sequentially formed by the coil-forming apparatus 1 are sent to the heat-treating furnace 21 of the heat-treating apparatus 2 and the heat-treating furnace 21 generates 300
The heat treatment is carried out at a temperature of up to 500 ° C. The transport device 3 for feeding and transporting the coil molded products D into the heat treatment furnace 21 is configured as follows.

That is, the transfer device 3 has a receiving portion 41 for directly receiving the coil-formed product D formed by the coil-forming device 1 from the core bar 13, and a spiral winding continuous with the receiving portion 41. A feed spiral body 4 which is concentrically rotated with the core metal 11 and which has a feed portion 42 of a predetermined length, a guide body 5 which rotatably supports the feed portion 42 of the feed spiral body 4, It is composed of a drive device 6 for driving and rotating the feed spiral body 4. More specifically, the feed spiral 4 is composed of one wire rod, as shown in FIGS. 1 and 2, a linear portion is provided on one side in the length direction of the wire rod, and the other side of the linear portion is provided. Is formed with a feeding portion 42 having a large number of spiral loop portions 42a having a length penetrating from the inlet side to the outlet side of the heat treatment apparatus 2, and the linear portion is connected to the core metal 13 and the spindle shaft 12. It is inserted into a through hole 43 that is continuously provided inside each center, and a part of the straight line portion is left on the front side facing the cored bar 13, and the straightened part is connected to the cored bar 13 at the remaining portion. While forming the receiving portion 41, the end portion of the linear portion inserted into the through hole 43 is coupled to a driving device 6 described later, and the driving portion 6 drives the feeding portion 42 to move the feeding portion 42. Is rotated concentrically with the core metal 13 The coil part A of the coil molded product D sequentially sent to the receiving part 41 is locked to each loop part 42a of the feeding part 42, and each coil molded product C is attached via each loop part 42a. , The spring feet B and C are not entangled with other coil-formed products D, and they are fed one by one at a predetermined pitch interval in an independent state and supplied to the heat treatment apparatus 2, and the heat treatment apparatus 2 performs the operation. The uniform heat treatment of each coil molded product D is performed.

Further, the guide body 5 for supporting the feed spiral 4 has the spiral body 4 as shown in FIG.
The feeding section 42 of the above is composed of a tubular body 52 having an insertion hole 51 into which it is rotatably inserted. It is shaped like a gutter. Then, each of the coil molded products D conveyed in the locked state to each of the loop portions 42a of the feeding portion 42 has its spring legs B and C hang downward from the opening 53 of the cylindrical body 52. In this state, the coil molded product D is transferred to the feeding portion 42 through the opening 53.
The loop portion 42a of the
It is arranged that the coil molded products D are transported one by one to the heat treatment apparatus 2 in an independent state at a predetermined pitch interval by restricting the movement of the coil molded product arbitrarily. It should be noted that, without using the above-mentioned gutter-shaped one as the guide body 5, a supporting member for rotatably supporting the feed portion 42 of the spiral body 4 on the inlet side and the outlet side of the heat treatment apparatus 2 is used. It is also possible to provide it and to comprise with each of these support members.

Further, the driving device 6 for rotationally driving the spiral body 4 has a driven gear 62 rotatably supported by a support 61 and a driving gear meshing with the driven gear 62, as shown in FIG. 63 and a motor 64 for rotating the drive gear 63, and a linear portion that continuously extends from the receiving portion 41 of the spiral body 4 is inserted and coupled to the central portion of the driven gear 62. The driven gear 62 is rotated by the rotation of the drive gear 63 as the motor 64 is driven.
The whole of the spiral body 4 is rotationally driven via the. Further, the driven gear 62 is provided with a detection body 65 protruding outward from one side surface of the outer periphery thereof, and a proximity switch 66 is disposed on the side opposite to the detection body 65 to detect the proximity switch 66. The rotation of the driven gear 62 is detected by the body 65, and the rotation control of the motor 64 is performed based on the detection result, thereby performing intermittent rotation of the spiral body 4 and the coil forming at the feeding portion 42. The items D are sequentially conveyed at a predetermined pitch.

Further, from the core metal 13 of the coil forming device 1 through the receiving portion 41 of the feed spiral body 4, the feeding portion 4 is provided.
When the coil molded product D is sent to 2, the discharging device 7 is used. As shown in FIGS. 2 and 5, the discharging device 7 is connected to a discharging plate 72 having an insertion hole 71 that can be fitted into the core bar 13, and a lower side of the discharging plate 72. A cylinder 73 for moving the 72 forward and backward between the outer peripheral position of the core metal 13 and the feed portion 42 is provided. Then, the coil molded product D on the core bar 13
At the time of molding, the discharge plate 72 is positioned rearward with respect to the molding position of the coil molded product D on the core metal 13,
After the coil molded product D is molded, the discharge plate 72 is advanced to the feed portion 42 of the spiral body 4 via the cylinder 73, so that the coil molded product D is moved to the core metal 13
Then, it is surely sent to the sending section 42 through the receiving section 41.

Further, in the above manufacturing apparatus, a quality inspection device 8 for detecting the quality of the spring characteristics of the coil molded product D is arranged at the exit side of the heat treatment device 2 in the transportation path of the transportation device 3. The quality inspection device 8 is, for example, a load inspection device 81 for the coil molded product D.
And the angle inspection device 87 between the spring feet B and C of the coil molded product D, the load inspection device 81 performs the load inspection of the coil molded product D, and the angle inspection device 87 performs the load inspection. The angle between the spring feet B and C of the coil molded product D is inspected.

Load inspection device 81 for the coil molded product D
As shown in FIG. 6, on the outlet side of the heat treatment apparatus 2, one of the coil molded products D, which is intermittently conveyed in a suspended state by the feeding unit 42 of the spiral body 4 and is located at a predetermined stop position, A load inspector 82, such as a load cell, which is arranged so as to be capable of advancing and retreating at the outer position of the side spring foot B, and a coil molded product arranged on the outer lower side of the other spring foot C of the coil molded product D. And a positioning body 83 of D. In addition, as is clear from FIG. 7, the positioning body 83 includes a support body 85 having an insertion groove 84 to be fitted into the spring foot C on the other side of the coil molded product D, and the support body 8.
5 is provided with a cylinder 86 connected to the lower side and a moving mechanism (not shown) for moving the entire positioning body 83 forward and backward with respect to the other spring foot C.

When the load inspection device 81 performs the load inspection of the coil molded product D, as shown in FIG. 8, the entire positioning body 83 is moved by the moving mechanism.
The spiral body 4 is moved upward from the state shown in FIG.
By advancing to the spring foot C on the other side which is conveyed in the hanging state by the feeding section 42, the insertion groove 84 of the support body 85 is inserted into the spring foot C on the other side, and the support body 85 is inserted.
Then, the other side spring foot C is positioned, and then the load inspecting device 82 is advanced to the one side spring foot B over a predetermined angle range as shown by the phantom line in FIG. By detecting the reaction force of the one side spring foot B, the load inspection of the coil molded product D is performed.

Further, as shown in FIG. 9, the angle inspecting device 87 for the coil molded product D is similar to the above-described case, in that the other side spring foot C provided with the support body 85 and the cylinder 86. A positioning body 83 for positioning and a pair of photoelectric sensors 88, 88 arranged opposite to the one-sided spring foot B at a predetermined interval are provided.
The angle inspecting device 87 may be provided at the same position as the load inspecting device 81 so as to also serve as one positioning body 83, or a coil different from the mounting position of the load inspecting device 81. It may be provided at the stop position of the molded product D. Then, in a state where the other side spring foot C is positioned by the positioning body 83, the one side spring is output from each of the photoelectric sensors 88, and the one side spring is provided in the opposing range of the light ray region formed by each of the photoelectric sensors 88. When foot B is positioned,
The angle of each of the spring feet B and C is accurate, and the coil molded product D is judged to be a good product.
When the one side spring foot B is located in any of the light ray regions formed by 8, the angle of each spring foot B, C is inaccurate and the coil molded product D is defective. To be judged. In addition, as described above, each photoelectric sensor 8
When the angles of the spring feet B and C detected in 8 are inaccurate, a correction command is output from the photoelectric sensors 88 to the coil forming device 1 side to detect the spring feet B and C. You can also adjust the angle.

As described above, while the conveyance of the coil molded product D is stopped by using the load inspection device 81 and the angle inspection device 87, the load inspection of the coil molded product D and each of the coil molded product D are performed. The angle inspection of the spring feet B and C is performed, and when the coil molded product D is defective, a defective product ejector such as an air blow disposed on the packaging line of the packaging device 9 described later. It is discharged from the line by 89.

Further, in the above-described manufacturing apparatus, as shown in FIG. 1, a pair of long packaging materials made of vinyl tape or the like for the coil molded product D are provided at the end of the transfer path of the transfer device 3. A wrapping device 9 is disposed between E and F so as to sandwich one piece. The packaging device 9 includes a first supply roll 91 in which the one side packaging material E is wound and housed, and
From the first supply roll 91 and the second supply roll 92, which is disposed at an upper position away from the supply roll 91 on the front side in the material supply direction and which contains the other side packaging material F in a wound manner. A winding roll 93 for winding the coil-formed product D in a sandwiched state between the supplied packaging materials E and F and winding the wound coil product D between the first supply roll 91 and the winding roll 93. On the first supply roll 91 side, based on the detection result by the quality inspection device 8, the one-sided packaging material E
Is provided with a feeding device 94 for intermittently feeding at a predetermined interval, and the shooter 10 is provided between the front side of the feeding device 94 in the material supply direction and the carrying end portion of the carrying device 3. The coil molded product D conveyed from the conveying device 3 by the shooter 10 is dropped onto the one-side packaging material E supplied from the first supply roll 91, while the second supply roll 92 is supplied. Of the heat shield 95 near the take-up roll 93 on the front side in the material supply direction of
And the pedestal 96 are vertically opposed to each other, and the coil molded product D is sandwiched between the packaging materials E and F supplied from the supply rolls 91 and 92, respectively. By transporting the packaging materials E and F between the heat shield device 95 and the pedestal 96 and moving the heat shield device 95 to the pedestal 96 side, the coil molded product D is packaged in each of the wrappings. The materials E and F are packaged and wound on the winding roll 93. In addition, the coil molded product D supplied from the transport end portion of the transport device 3 to the shooter 10 controls the posture when the shooter 10 passes, and the coil molded product D is placed between the packaging materials E and F. It is also possible to orient and align and package.

Next, the operation of the manufacturing apparatus having the above structure will be described. First, the wire rod S is attached to the coil forming device 1.
Is fed, and the coil molded product D is sequentially molded on the core metal 13 of the coil molding device 1. Then, each of the coil-formed products D thus formed is sequentially fed from the core metal 13 through the ejecting device 7 to the loop portion 42a of the feeding portion 42 through the receiving portion 41 of the spiral body 4 and the feeding. By the drive rotation of the drive unit 6 of the portion 42,
Each of the coil molded products D via the loop portion 42a of the feed unit 42 is independent one by one at a predetermined pitch interval without the spring feet B, C of the coil molded products D being entangled with the other coil molded products D. Then, it is transported in an orderly manner and passed through the heat treatment apparatus 2. Therefore, the heat treatment apparatus 2 can uniformly heat-treat each of the coil molded products D, and the generation of defective products can be suppressed.
After the heat treatment by the above, the work of untangling and aligning the coil molded products D becomes unnecessary, and the quality inspection by the quality inspection device 8 that is subsequently performed after the heat treatment of the coil molded products D by the heat treatment device 2. Can be performed consistently and easily, and automation in the case of manufacturing each of the coil molded products D is possible, and workability can be improved.

When the defective product inspected by the quality inspection device 8 is supplied from the shooter 10 onto the packaging line of the packaging device 9, the defective product ejector 89 arranged on the line. Then, only non-defective products are packaged in the packaging device 9 between the packaging materials E and F one by one. Therefore, the heat treatment of the coil molded product D by the heat treatment device 2 and the quality inspection device 8
The quality inspection by the above and the wrapping work by the wrapping device 9 are consistently and continuously performed, and when the coil molded products D are manufactured, automation is possible and workability is further enhanced.

Therefore, when the packaging device 9 is incorporated as described above and each of the coil molded products D is packaged as described above, the coil molded product thus packaged is used in an automatic assembly line to form the coil molded product. The automatic supply to the automatic assembly machine becomes possible, and the application to the automatic assembly line becomes easy.

In the present invention, the packaging device 9 is not always necessary. In this case, an automatic assembly machine may be incorporated in the end of the transfer path of the transfer device 3 instead of the packaging device 9.

In the above embodiment, the coil molded product D having the linear spring legs B and C has been described, but in addition to this, one or both of the spring legs are hook-shaped as shown by the phantom line in FIG. Needless to say, the present invention can also be applied to a coil-formed product that is bent in a vertical direction.

[0033]

As described above, in the coil molded product manufacturing apparatus according to the present invention, the receiving portion 41 that continuously receives the coil molded product D from the core metal 13 of the coil molding device 1 and the spiral from the receiving portion 41. A feeding spiral body 4 that is concentrically rotated with the core bar 13, a guide body 5 that rotatably supports the feeding portion 42 of the spiral body 4, and the spiral body 4 are driven. Since the transfer device 3 having the driving device 6 for rotating is provided and the heat treatment device 2 is disposed in the transfer path of the transfer device 3, the coil molded products D sequentially formed by the coil forming device 1 are By the feeding portion 42 of the spiral body 4 which constitutes the transfer device 3, the spring feet B and C of each coil molded product D are not entangled with other coil molded products D, and one by one at a predetermined pitch interval. Transport in an independent and orderly manner It can, it is possible to suppress the generation of the heat treatment apparatus 2 the can be heat treated uniformly each coil molded product D between it and defective, also, the heat treatment apparatus 2
After the heat treatment by the above, the work of unraveling and aligning the coil molded products D is not required, and it is possible to easily shift to the inspection process when the quality inspection of each coil molded product D is performed.

Further, by disposing a quality inspection device 8 for detecting the quality of the spring characteristic of the coil molded product D on the exit side of the heat treatment device 2 in the transport path of the transport device 3, the coil molded product is obtained. Pass / fail inspection of D is performed by the heat treatment apparatus 2
Can be performed during the transportation of the transportation device 3 subsequent to the heat treatment by the above, and therefore, the automation in the case of manufacturing each of the coil molded products D can be performed and the workability can be improved, and The coil molded product D can be easily packaged and combined with an assembly line such as an automatic assembly machine.

Further, when the packaging device 9 is provided at the end of the transport path of the transport device 3, the coil molded product D is sandwiched between the pair of long packaging materials E and F one by one. The heat treatment of the coil molded product D, the quality inspection, and the wrapping work can be continuously performed in a consistent manner, and the coil molded product D can be easily applied to an automatic assembly line by wrapping as described above. Of.

[Brief description of drawings]

FIG. 1 is a schematic side view showing the overall structure of a manufacturing apparatus according to the present invention.

FIG. 2 is a cross-sectional view of a coil forming device and a conveying device portion used in the manufacturing apparatus.

FIG. 3 is a side sectional view showing a wire rod supply portion of the coil forming device.

FIG. 4 is a vertical cross-sectional view of a guide body used in a carrying device.

FIG. 5 is a perspective view of an ejection device used in the conveyance device.

FIG. 6 is a front view showing a load inspection device which is a pass / fail inspection device used in the manufacturing apparatus.

FIG. 7 is a plan view showing a positioning body of the load inspection apparatus.

FIG. 8 is a front view showing a load inspection state of a coil molded product by the same load inspection device.

FIG. 9 is a front view showing an angle inspection device in the quality inspection device.

[Explanation of symbols]

1 coil forming equipment 13 core 18 cutting blade 2 Heat treatment equipment 3 Conveyor 4 Feed spiral 41 Receiver 42 Feeder 5 Guide body 6 drive 8 Quality inspection device 9 Packaging equipment A coil part B, C spring feet D coil molded product E, F packaging materials

Claims (3)

[Claims] 1. A coil forming apparatus 1 for forming a coil formed product D having a core metal 13 and a cutting blade 18 and having a coil portion A and a pair of spring legs B and C, and a heat treatment for the coil formed product D. A coil molding product manufacturing apparatus including a heat treatment device (2) for performing heat treatment, comprising a receiving portion (41) for continuously receiving the coil molding product (D) from the core metal (13), and a spiral winding from the receiving portion (41). A feed device which is composed of a feed part 42 and rotates concentrically with the core metal 13, a guide body 5 which rotatably supports the feed part 42 of the feed spiral body 4, and a drive device which drives and rotates the feed spiral body 4. 6. A manufacturing apparatus for a coil-formed product, characterized in that a heat transfer device 3 is provided, and the heat treatment device 2 is disposed in the middle of the transfer path of the heat transfer device 3. 2. The coil molded product according to claim 1, wherein a quality inspection device 8 for detecting the quality of the spring characteristic of the coil molded product D is disposed on the exit side of the heat treatment device 2 in the transport path of the transport device 3. Manufacturing equipment. 3. A wrapping device 9 for wrapping one coil-formed product D between a pair of long wrapping materials in a sandwiched manner at the end of the carrying path of the carrying device 3. Coil molding equipment manufacturing equipment.