JPH0331111A - Coil spring feeder - Google Patents

Abstract

PURPOSE:To automatically feed coil springs in the device stated in the title used for assembly of a rocker shaft unit by separating a spring aggregate charged from a bucket elevator one by one through rotation of a rotary plate, and feeding the springs in a row with a parts feeder. CONSTITUTION:A coil spring aggregate sent through a constant quantity feeding flapper 26 and a conveyor belt 27 is liftingly fed with a bucket elevator 29, and charged into the case 34 of a feeder 23. The rotary plate 36 of a separator 30 is rotated in the case 34, the spring aggregate is blown off to the inner circumferential face of the case to collide by the centrifugal force, and the aggregate is separated into individual springs 9. The separated spring is dropped into a parts feeder 31 and individually transported in a low. They are transported to the successive process through a conveyance passage 39. By this constitution, automatic feed can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Industrial Application Field) This invention relates to a coil spring supply device used in a rocker shaft unit assembly device mounted on an overhead camshaft type engine body.

(Prior Art) Engine bodies equipped with an overhead camshaft (OHC) type valve mechanism are generally known as engines for vehicles such as automobiles. This OHC type valve mechanism has a configuration as shown in FIG. 16.

In FIG. 16, 1 is a cylinder block, and 2 is a cylinder head disposed on this cylinder block 1. In FIG. This cylinder head 2 is provided with a camshaft 3, and a rocker shaft 4.4 is arranged parallel to the upper part of the camshaft 3. These rocker shafts 4, 4 are provided with rocker arms 5, 5 which are rotationally driven by the camshaft 3, and these rocker arms 5.5 open and close an intake valve 6 and an exhaust valve 7. It looks like this.

Further, each rocker shaft 4 has a plurality of rocker arms 5, for example, in an OHC type valve mechanism in which one intake valve 6 and one exhaust valve 7 are attached to one cylinder, each rocker shaft 4 has a plurality of rocker arms 5. The number of rocker arms 5 corresponds to the number of cylinders in the engine body. For example, in a three-cylinder engine body, three rocker arms 5 are mounted on each rocker shaft 4, as shown in FIG. Furthermore, on each rocker shaft 4, along with these plurality of rocker arms 5...
Mounting parts such as a coil spring 9 arranged in parallel with the rocker arm 5 are mounted between the adjacent pair of cam caps 8, 8, and the rocker arm 5.

When the engine body is manufactured, a plurality of mounting parts such as the rocker arms 5, cam caps 8, coil springs 9, etc. are arranged in advance on each rocker shaft 4 in a predetermined order. Then, the rocker shaft unit A is formed, and then each cam cap 8...
By fixing to the cylinder head 2 with fixing bolts 10..., each rocker shaft 4 and each mounted part such as a plurality of rocker arms 5..., cam caps 8, coil springs 9, etc. are connected. It is designed to be integrally attached to the cylinder head 2.

By the way, in the structure described above, the plurality of coil springs 9 disposed in the rocker shaft unit A are
Since the wire diameter of ... is small and the coil pitch is large, for example, when a plurality of coil springs 9 ... are housed in a container, there is a problem that the surrounding plural coil springs 9 ... tend to become entangled with each other. . Therefore, it is difficult to automatically supply the plurality of coil springs 9 arranged in the rocker shaft unit A, so it is difficult to automate the assembly work of the rocker shaft unit A. ...The supply work was done manually by workers. As a result, the efficiency of assembling the rocker shaft unit A is poor, which poses a problem in improving the efficiency of assembling the entire engine body.

(Problems to be Solved by the Invention) The plurality of coil springs 9 disposed in the rocker shaft unit A of the OHC type valve mechanism have a small wire diameter and a large coil pitch. When ... is accommodated in a container, a plurality of surrounding coil springs 9 ... are likely to become entangled with each other, so the plurality of coil springs 9 ... arranged in the rocker shaft unit A are automatically supplied. Conventionally, the work of supplying the coil springs 9... has been done manually by workers, which results in poor work efficiency in assembling the rocker shaft unit A, and reduces the work efficiency in assembling the entire engine body. There were problems in trying to improve.

This invention was made in view of the above circumstances, and it is possible to automatically supply a plurality of coil springs, automate the assembly work of the rocker shaft unit of the OHC type valve mechanism, and improve the work efficiency of the rocker shaft unit assembly work. It is an object of the present invention to provide a coil spring supply device that can improve the performance.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes a case in which a coil spring insertion port is provided on the top surface, and an assembly of a plurality of coil springs that is transported to the coil spring insertion port in the top surface of the case. and a coil spring assembly supply means for supplying the coil spring assembly into the case from the coil spring insertion port, and a rotary plate disposed approximately horizontally in the case, and the rotary plate is rotated to supply the coil spring assembly from the coil spring insertion port. a coil spring separator main body that bounces the coil spring assembly supplied into the case in a centrifugal direction and separates the coil spring assembly by bringing it into contact with an inner circumferential wall surface of the case; A part that vibrates a bottomed cylindrical body with an open top surface, separates and aligns the coil springs sent from the bottom surface of the case of the coil spring separator one by one, and supplies the coil springs to the conveyance mechanism for the next process. It is equipped with a feeder.

(Function) The coil spring assembly supply means transports a plurality of coil spring assembly to the coil spring insertion opening on the upper surface of the case, supplies it into the case from this coil spring insertion opening, and operates the coil spring separator inside the case. Rotating the rotary plate of the main body, the coil spring assembly supplied into the case from the coil spring insertion port is splashed in the centrifugal direction, and the coil spring assembly is separated by contacting the inner circumferential wall surface of the case. Next, the cylindrical body of the parts feeder under this case is vibrated to separate and align the coil springs fed from the bottom surface of the case of the coil spring separator one by one, and supply them to the conveyance mechanism for the next process, thereby separating multiple coils. The spring is automatically supplied to automate the assembly work of the rocker shaft unit of the OHC type valve mechanism, thereby improving the work efficiency of the rocker shaft unit assembly work.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 15.

FIG. 2 shows a supply device 22 for the coil spring 9 of the present invention.
This figure shows a schematic configuration of the entire rocker shaft unit assembly apparatus using the rocker shaft unit assembly apparatus (shown in FIG. 1), and 21 is a conveyance path for rocker shaft mounting parts formed by, for example, a belt conveyor. The coil spring supply device 22 is disposed on the starting end side of the conveyance path 21.

Further, on the conveyance passage 21, there are a pair of supply devices 23a and 23b for the rocker arms 5°5 (on the intake valve 6 side and the exhaust valve 7 side) and a supply device 24 for the cam cap 8.
are provided respectively, and this conveyance path 21
An insertion mechanism section 25 for the rocker shaft 4 is disposed on the terminal end side of the rocker shaft 4 .

Furthermore, FIG. 1 shows a schematic configuration of the coil spring supply device 22. As shown in FIG. This coil spring supply device 22 includes a spring constant supply flapper 26, a spring conveyor belt 27, an elevator front feeder 28, and a supply packet elevator (spring assembly supply means) 29.
, a spring separator 30, a parts feeder 31, and a parts feeder return belt 32. In this case, the spring conveyor belt 27 extends substantially horizontally. A substantially flat spring fixed quantity supply flapper 26 is disposed at the starting end of the spring conveyor belt 27, and an elevator front feeder 28 is disposed at the terminal end thereof, and a fixed quantity of coil springs 9 are supplied from the spring fixed quantity supply flapper 26.・is connected to the elevator front feeder 28 via the spring conveyor belt 27
is supplied to.

The elevator front feeder 28 also has a fixed amount of coil springs 9 supplied via the spring conveyor belt 27.
Packet 29 of packet elevator 29 for supplying...
It leads to a. Further, the supplying packet elevator 29 moves the internal packet 29a up and down to transport a certain amount of coil springs 9 introduced from the inlet at the lower end to the outlet at the upper end, and the spring separator The spring is supplied into the case 34 of the spring separator 30 from the spring insertion port 33 on the top surface of the spring separator 30.

Further, a spring separator main body 35 is disposed within the case 34 of the spring separator 30.

As shown in FIG. 3, this spring separator main body 35 has, for example, two upper and lower rotary plates 36 and 36 arranged approximately horizontally.
is provided. These rotating plates 36, 36 are adapted to be rotationally driven by a drive motor 37. Then, by rotating the rotating plates 36, 36 of the spring separator main body 35 by the drive motor 37, a fixed amount of coil springs 9, supplied into the case 34 from the spring insertion port 34, are transferred to the rotating plates 36, 36. 36 in the centrifugal direction, the coil springs 9 are brought into contact with the inner peripheral wall surface of the case 34, and the plurality of coil springs 9 are separated.

0 Furthermore, a parts feeder 31 is disposed at the bottom of this spring separator 30. This parts feeder 31
The coil spring 9 is sent from the spring separator 30 by vibrating a bottomed cylindrical body 38 with an open top surface.
. . are separated and arranged one by one and continuously supplied to the conveyance path 39 for the next process. In addition, this parts feeder 3
1 is connected to a para feeder return belt 32, and the extra coil springs 9 are connected to the elevator front feeder 2 via this para feeder return belt 32.
It is now set back to 8.

Moreover, on the transport path 21 for the rocker shaft mounted parts, there are a plurality of pallets 40 for transporting the rocker shaft mounted parts.
...is arranged. The coil springs 9 . . . supplied from the parts feeder 31 of the coil spring supply device 22 via the conveyance path 39 are arranged on these pallets 40 . In this case, as shown in FIG.
It is connected to ゜143. This distributor 41 includes a pair of tube bodies 44a, 44b and these tube bodies 44a.

Connecting portions 44c are provided to connect the portions 44b. One row of coil springs 9 .
Two rows of coil springs 9...33... are supplied alternately to each pallet 4 through these branch passages 42, 43.
0.

Furthermore, the supply device 2 for the rocker arm 5 on the intake valve 6 side on the conveyance path 21 for the rocker shaft mounted parts.
3a, the three rocker arms 5 on the intake valve 6 side are transferred onto each pallet 40 in the conveyance path 21, and the rocker arms 5 on the exhaust valve 7 side are transferred. Similarly, from the supply device 23b, the conveyance path 2
Three rocker arms 5 on the exhaust valve 7 side are transferred onto each pallet 40 of 1. Furthermore, four cam caps 8 are transferred from the supply device 24 for the cams 2 and caps 8 onto each pallet 40 in the conveyance path 21. In addition, the supply device 22 for the coil spring 9, and the supply devices 23a, 23 for the rocker arms 5, 5 (on the intake valve 6 side and the TJF air valve 7 side).
The installed parts of the rocker shafts 4, 4 transferred from the supply device 24 for the rocker shafts 4, 4, and the cam caps 8, etc. to each pallet 40 in the conveyance path 21 are arranged in a predetermined order. It has become. And each pallet 4
0 is conveyed to the terminal position of the conveyance path 21, the mounted parts of the rocker shafts 4, 4 are arranged in a predetermined mounting order.

Further, the rocker shaft insertion mechanism section 25 at the terminal end of the conveyance path 21 is provided with a dummy shaft insertion device 45 and a rocker shaft insertion device 46, which will be described later. As shown in FIG. 5, this dummy shaft insertion device 45 is provided with a pair of dummy shafts 347a and 47b, which have a slightly smaller diameter and longer length than the rocker shaft 4.4 on which a plurality of mounting parts are mounted. These dummy shafts 47a, 47b are held by a holding block (holding member) 48 so as to be freely movable in the axial direction. in this case,
As shown in FIG. 6, the holding block 48 is repeatedly driven to circulate on a constant trajectory by a dummy shaft circulation device 49 that extends in a direction perpendicular to the axial direction of the dummy shafts 47a and 47b. . Further, the rocker shaft insertion device 46 includes a dummy shaft circulation device 49.
They are placed opposite each other in the middle of the circulation orbit.

Further, the dummy shaft circulation device 49 includes a pair of endless conveyor belts 51a that are rotationally driven by a suitable drive mechanism 50 and arranged to be spaced apart from each other.

51b is provided. These conveyor belts 51a,
51b has a pair of front and rear support protrusions 52a, 52 that support the timing belt on the inner surface and the holding block 48 on the outer surface.
A plurality of sets of b are formed. Furthermore, the holding block 48 is provided with conveyor belts 51a and 5 as shown in FIG.
A leg portion 53 is formed to protrude toward the 1b side, and this leg portion 53
are conveyor belts 51a, 51. b supporting convex portions 52a, 52
It is inserted between b. Further, a pair of left and right guide rollers 53a and 53b are provided on both sides of the holding block 48, respectively. Furthermore, the dummy shaft circulation device 49
is provided with an upper first guide rail 54 that guides guide rollers 53a and 53b of the holding block 48, and a second guide rail 55 disposed below the first guide rail 54 in a spaced-apart manner. It is being

At both ends of the second guide rail 55, there are substantially semicircular extensions 55a extending upward.

55b are formed respectively. When the dummy shafts 47a, 47b circulate, the guide rollers 53a, 53b of the holding block 48 are guided between the first guide rail 54 and the second guide rail 55.

Further, a substantially rectangular frame body 56 is provided on the base end side of the dummy shafts 47a, 47b.

The base ends of dummy shafts 47a and 47b5 are rotatably inserted into this frame 56. Furthermore, inside this frame 56 is a dummy shaft 47a.

Gears 57a and 57b fixed to the base end of 47b are housed. These gears 57a and 57b are held in mesh with each other. Further, a guide roller 58 is provided outside the frame 56. This guide roller 58
is guided by a first degree second guide rail 59.60 having the same structure as the first degree second guide rail 54.55 that guides the guide rollers 53a, 53b of the holding block 48.

Further, the dummy shaft insertion device 45 is provided with a rotation insertion mechanism 61 for inserting the dummy shafts 47a, 47b into the mounting holes of the respective mounting components while rotating the dummy shafts 47a, 47b. This rotational insertion mechanism 61 includes a dummy shaft insertion cylinder 62 that suppresses the dummy shafts 47a and 47b in the axial direction, and a dummy shaft 47.
a.

Dummy shaft rotation drive motor 63 that rotates 47b
and is provided. A drive gear 64 that can mesh with the gear 57a (or 57b) of one of the dummy shafts 47a (or 47b) is fixed to the rotation shaft 63'a of the dummy shirt rotation drive motor 63. Then, as shown in FIG.
These dummy shafts 47a are placed in the mounting holes of the mounting parts of the rocker shafts 4, 4, which are transferred onto the respective pallets 4o of the conveyance path 21 while rotating the dummy shafts 47a and 47b.

47b and align each installed component.

Further, as shown in FIG. 8, the dummy shafts 47a and 47b to which the various parts of the rocker shaft 4.4 are attached are conveyed by a dummy shaft circulation device 49 to the insertion position of the regular shaft. At the insertion position of this regular shaft is a dummy shaft 47a, as shown in FIG.

A compression mechanism 65 is provided for compressing the parts (of the rocker shafts 4, 4) mounted on the rocker shaft 47b to regular dimensions. This compression mechanism 65 is provided with a stopper 66 and a compression jig 67, which also serves as a guide for the regular shaft. This stopper 66 has a 10th
As shown in the figure, a pair of regular shaft guide holes 68a,
68b are formed, and these guide holes 68a as shown in FIG.

A suitable chamfered portion 69 is formed on the inlet side of the regular shaft 68b. Further, the compression jig 67 is provided with a press plate 70 and a drive cylinder 71. And a dummy shaft 47a.

The tip of 47b is the guide hole 68a of this stopper 66,
The dummy shafts 47a, 4 are inserted into the 68b.
The pressing plate 70 of the compression jig 67 is connected to this dummy shaft 47a from the base end side of the shaft 7b.

47b (rocker shafts 4, 4), and in this state, the drive cylinder 71 regularly connects the installed parts (rocker shafts 4.4) to dummy shafts 47a, 47b. It is designed to be compressed to the dimensions of

In addition, the rocker shaft 4 is located at the insertion position of the regular shaft.
The tip of the shaft conveyance path 73 is disposed, and
A positioning device 74 for the rocker shaft 4.4 and the rocker shaft insertion device 46 shown in FIG. 12 are provided. In this case, the rocker shaft conveyance path 73 is arranged approximately parallel to the conveyor belts 51a, 51b of the dummy shaft circulation device 49, and the rocker shaft supply device 72 is disposed at the base end of the rocker shaft conveyance path 73. There is. Further, as shown in FIG. 13, the rocker shaft positioning device 74 includes a bearing member 75 disposed below each rocker shaft 4 and rotatably supporting the rocker shaft 4, and a bearing member 75 disposed above the rocker shaft 4. , substantially cylindrical alignment jigs 76 for rotating the rocker shaft 4 are provided. In this case, the outer circumferential surface of the rocker shaft 4 has a plurality of notches 77 extending along the circumferential direction and the fixing bolts 10...
Insertion holes 78... are formed locally, respectively. Each rocker shaft 4 is inserted into these notches 77...
An outer open end 80a of an oil outlet 80 is formed, which is connected to an oil flow hole 79 formed inside the oil 9 outlet.

Moreover, these notches 77... are formed substantially parallel to the fixing bolt insertion holes 78... as shown in FIG. When the fixing bolts 10 are inserted into the fixing bolt insertion holes 78, these notches 7
7... is arranged laterally outward,
During operation of the engine body, a part of the lubricating oil in the oil distribution hole 79 formed inside each rocker shaft 4 is led out to the outside of each rocker shaft 4 through the oil outlet 80, and The outer peripheral surface of the product is lubricated.

Further, the alignment jig 76 is provided with a pair of substantially cylindrical angle-setting loaders 81, 81, and each rocker shaft 4.
At positions corresponding to the notches 77 on the outer circumferential surface of 4, substantially circular flange-shaped positioning protrusions 82 that can be inserted into these notches 77 are provided. In addition, these angular loaders 81, 81 are supported by support rods 83, 83.
is fixed. Additionally, these support rods 83.
One end of 83 is rotatably attached to a suitable support member 84, and gears 85, 85 are fixed to the other ends of these support rods 83, 83, respectively. Further, a loader drive motor 86 is connected to one support rod 83, and each gear 85 of the support rods 83.8B on both sides
．． Interlocking gears 88 connected to a loader actuating cylinder 87 are installed between the two in mesh with each other. Then, when the pair of rocker shafts 4.4 are conveyed from the rocker shaft supply device 72 to the regular shaft insertion position via the rocker shaft conveyance path 73, they are installed on the bearing member 75 at this regular shaft insertion position, In this state, the rocker shaft positioning device 74 is driven. Furthermore, when the rocker shaft positioning device 74 is driven, the angle-setting loaders 81, 81 are rotated at fixed positions relative to the rocker shaft 4.4, and these angle-setting loaders 81.8
Rocker shaft 4 on bearing member 75 by contact with 1
, 4 are rotated.

1 In this case, the positioning convex portions 8 of the angle determining loaders 81, 81
2... are each rocker shaft 4 as shown in FIG.
．． When the rocker shaft 4.4 is inserted into the notch 77 on the outer peripheral surface of the bearing member 75, the rotation of the rocker shaft 4.4 on the bearing member 75 is stopped, and in this state, the rocker shaft 4.4 is positioned in the circumferential direction. It has become.

Further, in this positioning state, the shaft positioning cylinder 89 is driven, and, for example, a pair of positioning rods 90, 90 provided on this shaft positioning cylinder 89 are inserted into the fixing bolt insertion holes 78, 78 of each rocker shaft 4, 4.
The rocker shafts 4, 4 are inserted therein and locked in this positioned state.

Moreover, when the rocker shafts 4, 4 are positioned in the circumferential direction, the rocker shaft insertion device 46 is subsequently driven. This rocker shaft insertion device 46 is provided with a suppression cylinder (insertion mechanism) that presses the rocker shaft 4.4 in the axial direction with an appropriate pressing force. Then, the rocker shaft 4.4 is pressed by this suppression cylinder from the opposite side to the insertion direction of the dummy shafts 47a and 47b, and the dummy shaft 47a is removed.

Press fit the rocker shaft 4.4 into the mounting hole of each mounting component (of the rocker shaft 4.4) mounted on the rocker shaft 47b, pull out the dummy shafts 47a and 47b from the mounting hole of each mounting component, and insert the dummy shaft 47a and 47b into the mounting hole of each mounting component. A rocker shaft unit A is formed by inserting a rocker shaft 4.4 into a predetermined insertion position.

Furthermore, a unit transfer mechanism 92 is provided at the insertion position of the regular shaft to transfer the assembled rocker shaft unit A to a conveyance path 91 of the cylinder head 2 in the subsequent process formed by, for example, a belt conveyor. The rocker shaft unit A is then transferred to the cylinder head 2 on the conveyance path 91 by this unit transfer mechanism 92. Moreover, each cam cap 8 of the rocker shaft unit A is disposed on the conveyance path 91.
An automatic bolt-fastening device 93 is provided which automatically inserts the fixing bolts 10 into the bolt insertion holes and bolts and fixes the rocker shaft unit A to the cylinder head 2 using these fixing bolts 10. and
Automatic assembly between the rocker shaft unit A and the cylinder head 2 is performed.

Therefore, in the above configuration, the supply packet elevator 29 transports the assembly of the plurality of coil springs 9 to the coil spring insertion opening 33 on the top surface of the case 34 of the coil spring separator 30, and the coil spring The coil spring separator main body 3 is supplied from the insertion port 33 into the case 34, and the coil spring separator main body 3 is supplied inside the case 34.
The assembly of coil springs 9 supplied from the coil spring insertion port 33 into the case 34 is spun off in the centrifugal direction by rotating the rotary plates 36 and 36 of the case 3.
The coil spring 9 is brought into contact with the inner circumferential wall surface of the coil spring 4 to separate the assembly, and then the cylindrical body 38 of the parts feeder 31 under this case 34 is vibrated to separate the coil spring 9 from the lower surface of the case 34 of the coil spring separator 30. Since the coil springs 9 sent from the coil springs 9 are separated one by one and arranged in line and supplied to the conveyance path 39 of the next process, the plurality of coil springs 9 that are easily entangled with each other are removed.
can be supplied automatically. Therefore, since the assembly work of the rocker shaft unit A of the OHC type valve mechanism can be automated, the assembly work of the rocker shaft unit A is performed manually by an operator as in the past. Work efficiency can be improved, and work efficiency in assembling the entire engine body can be improved.

Note that this invention is not limited to the above embodiments. For example, in the above embodiment, an OHC valve mechanism was described for a three-cylinder engine body in which one intake valve 6 and one exhaust valve 7 are installed in each cylinder, but other numbers of cylinders and valves may be used. OH of the engine body
It may also be applied to a C-type valve mechanism. Furthermore, it goes without saying that various other modifications can be made without departing from the gist of the invention.

5 [Effects of the Invention] According to the present invention, the rotary plate of the coil spring separator body is rotated within the case of the coil spring separator, and the assembly of coil springs supplied into the case from the coil spring insertion port is centrifugally rotated. The coil spring assembly is separated by being splashed and brought into contact with the inner circumferential wall of the case, and then the cylindrical body of the parts feeder under this case is vibrated to separate the coils sent from the bottom of the case of the coil spring separator. Since the springs are separated and aligned one by one and then supplied to the conveyance mechanism for the next process, multiple coil springs can be automatically supplied, and the assembly work of the rocker shaft unit of the OHC valve mechanism can be automated and the locker It is possible to improve the work efficiency of the shaft unit assembly work.

[Brief explanation of drawings]

1 to 15 show an embodiment of the present invention. FIG. 1 is a perspective view showing a schematic configuration of a coil spring supply device of the present invention, and FIG. 2 is an entire rocker shaft unit assembly device. FIG. 3 is a vertical sectional view of the main parts of the spring separator;
FIG. 4 is a perspective view showing the distributor of the conveyance path, FIG. 5 is a perspective view showing the schematic structure of the dummy shaft insertion device, FIG. 6 is a perspective view showing the schematic structure of the dummy shaft circulation device, and FIG. A front view showing the support structure of the holding block, Fig. 8 is a front view showing the state in which the dummy shaft is inserted into the mounting hole of each mounting part of the rocker shaft, and Fig. 9 is a front view showing the state in which the dummy shaft is inserted into the mounting hole of each mounting part of the rocker shaft. Front view showing the compression mechanism, 1st O
The figure is a front view showing the stopper, FIG. 11 is a longitudinal sectional view showing the normal shaft insertion state, FIG. 12 is a perspective view showing the schematic structure of the rocker shaft positioning device and the rocker shaft insertion device, and FIG. 13 is the alignment tool. Fig. 14 is a vertical cross-sectional view showing the mounting state of the rocker shaft, Fig. 15 is a longitudinal cross-sectional view showing the positioning state of the rocker shaft, and Fig. 16 shows the schematic configuration of the OHC type valve mechanism. A vertical sectional view and FIG. 17 are perspective views showing the schematic structure of the rocker shaft unit. 7 2... Cylinder head, 4... Rocker shaft,
5... Rocker arm, 8... Cam cap, 9...
... Coil spring, A ... Rocker shaft unit, 29 ... Supply packet elevator (coil spring assembly supply means) 21 ... Conveyance path, 22
... Coil spring supply device, 30 ... Spring separator, 31 ... Parts feeder, 33 ... Coil spring insertion port, 34 ... Case, 35 ... Coil spring separator body, 36.・Rotating plate, 38・
... Cylindrical body, 39... Conveyance path.

Claims (1)

[Claims] A case with a coil spring insertion port on the top,
a coil spring assembly supply means for transporting a plurality of coil springs to a coil spring insertion opening on the upper surface of the case and supplying the assembly into the case from the coil spring insertion opening; the rotating plate is rotated to splash the assembly of coil springs supplied into the case from the coil spring insertion port in a centrifugal direction and abut against an inner circumferential wall surface of the case; A coil spring separator main body that separates the coil spring assembly, and a bottomed cylindrical body disposed at the bottom of the case and having an open top surface are vibrated and sent from the bottom surface of the case of the coil spring separator. 1. A coil spring supply device comprising: a parts feeder that separates and aligns coil springs one by one and supplies them to a conveyance mechanism for the next process.