JPH0330426B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an improved method and apparatus for manufacturing a self-locking internally threaded component, and more particularly, a method and apparatus for manufacturing an improved self-locking internally threaded component, and more particularly, a method and apparatus for manufacturing a self-locking internally threaded component. The present invention relates to a method and apparatus for continuously manufacturing self-locking internally threaded parts that provide a detent function.

Prior art includes U.S. Pat. No. 3,995,074;
No. 4,054,688 and No. 4,100,882 disclose a method and apparatus for applying a resilient resin patch to an internally threaded component such as a nut, in which both ends of the threaded portion are open. The devices disclosed in those patents generally include a rotary table arranged on the outside of the table for receiving the parts, selecting them, and applying a plastic patch to the internal threads of the parts. There is.

U.S. Patent Nos. 4,054,688 and 410,082 disclose that one layer of heat-melting resin particles is attached to the thread surface of a high-temperature component, and then two particles are attached in the same manner to another location.
A means for producing individual patches in a predetermined arrangement is disclosed. In each of the aforementioned patents, the internally threaded component is held in place on the rotating support member by a groove that receives, for example, a portion of the outer hex of a hexagonal head nut. The first part is attached to the internal thread of the part.
After the second discrete patch is applied, a rotational moment is applied to move the part such that the other side of the hexagonal head enters the groove, and then a second discrete patch is applied.

While it is acknowledged that the method and apparatus described above have been successful in achieving their intended purpose,
The individual devices and methods disclosed are directed to applying one or more discontinuous patches to the internal threads of a component.

However, it has been found desirable to continuously apply a detent patch to the inner periphery of the internal threads of a fastener component. In many cases,
It is desirable to apply the anti-return patch uniformly over the entire 360° circumference of the female thread, but there are other
It is necessary to apply the non-returning patch continuously within an angle of 360° or less. This is accomplished by rotating the part at a constant speed over at least a predetermined application angle while applying resin particles toward the thread surface only during a predetermined application angle to deposit the resin particles at the required location. It is necessary.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and apparatus for manufacturing a self-locking female threaded component in which a detent patch made of an elastic resin is applied over a predetermined arc portion of the female thread.

Another object of the present invention is to provide a self-locking female thread having a detent patch made of an elastic resin formed continuously over the entire 360° circumference of the female thread surface or within a predetermined arc length range smaller than 360°. An object of the present invention is to provide a method and apparatus for manufacturing attached parts.

As will become clear as the description progresses, the above and other objects of the present invention are as follows. achieved by. That is, the apparatus according to the present invention includes a feeder that almost continuously supplies female threaded parts, and a device that receives the female threaded parts from the feeder so that the axis of the threaded part of the female threaded part is oriented vertically and the lower end of the threaded part is oriented vertically. supporting means for feeding the internally threaded part along the processing path with the opening of the internally threaded part unobstructed; and heating means for heating the threaded portion of the internally threaded part to a temperature above the softening temperature of the resin to be applied.
The heat-melting resin is attached to each of the female threaded parts and applied upward from the opening at the lower end of the female threaded part in the above-mentioned processing path to a predetermined part of the threaded part of the female threaded part. A resin supply means for softening the resin and depositing the resin on the site, and performing relative rotation between the female threaded part and the resin supply means while the resin supply means is supplying the resin. It is characterized in that it consists of a rotating means for rotating.

In a preferred embodiment of the invention, the support means comprises a plurality of rotatable platforms, each of which receives and supports one internally threaded component thereon. Rotation means are provided along the path of the support means and engage each platform to rotate the platform and the internally threaded component supported thereon. With this configuration, as the support means moves, the hot melt resin is continuously applied to a predetermined arc-shaped portion of the threaded portion of the female threaded component.

In another embodiment of the device according to the invention, a plurality of conduits are provided below the support means as resin supply means, one end of which is coated with a patch of detent resin of the threaded portion of the internally threaded part. placed towards the area to be treated. The conduit is supported to rotate in a plane inclined with respect to the rotation plane of the support means, and has a blowing means at the other end for supplying thermoplastic resin under pressure to the conduit in a predetermined rotation area. provided. The conduit is rotated by the drive means in conjunction with the support means, and as the conduit rotates, the one end of the conduit moves in and out of the lower opening of the internally threaded part.

The method of applying a non-returning resin to a female threaded part according to the present invention is such that the axis of the threaded part of the female threaded part is directed upward and downward, and the threaded part is supported in a state where the opening of the threaded part is almost not blocked while being applied to the processing path. moving the internally threaded part along said path, heating the threads of the internally threaded part above the softening temperature of the applied resin, and opening the lower end of the internally threaded part while the internally threaded part is moved along said path. Supplying particles of a hot-melt resin from above upward to a certain part of the threaded part by application means, softening the resin powder by the heat of the threaded part and depositing it on this part,
It consists of rotating the internally threaded part and the applicator relatively around their respective axes by a predetermined rotational angle at a substantially uniform rotational speed while supplying the resin powder.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a detailed description will be given of FIGS. 1 and 2, which illustrate an apparatus for manufacturing a self-locking internally threaded part in the form of a flanged nut N. The illustrated device comprises support means embodied in the form of a disc or table 10 which is movable along a predetermined rotational path about a central axis in the direction indicated by the arrow in FIG. The disk or table 10 constituting this support means is fixed to the upper housing 1.
As the table 10 continuously rotates about the housing, points on the circumference of the table 10 are moved through the processing area. The path along which points on the circumference of the table 10 move through the processing area becomes the processing path.

In the first stage of processing, the component supply chute 12 is inclined downwardly towards the surface of the table 10.
But it serves to place the brimmed nut N on the table. In the next step, a powdered elastic thermoplastic resin is applied to the internally threaded surface of the nut. The processing path at this stage is surrounded by a vacuum hood 13, and the processing will be described in detail below.

The next stage of processing is the same as the first stage, in which the flanged nut N is coated with a second coat of powdered elastic thermoplastic resin on the internally threaded surface of the nut in an enclosed vacuum hood 13a.

The next step is a parts removal step, in which the arm 14 connected to the inclined surface 14a and having a cam surface placed near the top surface of the table 10 removes the nut N from the table 10 and moves it below the housing 11. Drop it into the hole in the provided substrate 24. In a subsequent step, residual resin is removed from the means for applying thermoplastic resin to the nuts N in the area of the table 10, and the preparation for the next processing sequence is completed.

The fixed housing 11 shown in FIG. 2 is provided with a funnel-shaped hopper 15 shown in FIG. It is for.

As can be seen in FIG. 2, table 10 has an upper hub 16 on which ball bearings 17 are mounted.
A bearing member 18 for receiving a hub 16 and a ball bearing 17 is provided at the upper part of the housing 11 .

Furthermore, on the outer surface of the housing 11 there is a second bearing surface 20 on which a rotatable block 22 is mounted. The rotating block 22 is connected to the housing 1
It rests on a ball bearing unit 23 disposed on the upper surface of a base plate 24 that supports 1.

As can be seen in FIG. 2, the outer surface of the housing 11 forming the bearing surface 20 is a cylindrical surface perpendicular to the base plate 24, so that the rotating block 22 has a surface parallel to the surface of the base plate 24. It can be rotated inside. On the other hand, the bearing member 18 has a cylindrical surface slightly inclined with respect to the direction perpendicular to the surface of the substrate 24, and the ball bearing 17 is supported on this cylindrical surface. Therefore, the table 10 rotates within a plane that forms a slight angle with respect to the surface of the substrate 24 and the rotation plane of the rotating block 22. The importance of this feature will become clear as the explanation progresses.

The rotating block 22 has a ring gear 26 which meshes with a gear 28 connected to the drive motor. A pin 29 extending upwardly from the rotating block 22 is slidably received in a circular hole 30 drilled in the table 10. Therefore, in FIG. 2, when the motor drives gear 28, block 22 rotates, and since table 10 and block 22 are connected by pin 29, table 10 is driven. or,
As block 22 and table 10 rotate, the blocks and tables can be moved from positions in close proximity to each other to positions further apart as shown.

As can be seen in FIGS. 1 and 2, the block 22 has a plurality of radially extending holes 3 of circular cross section.
2 are perforated, and each has a housing 1 at one end.
1, and a tube 33 is inserted into the other end, and the tube and the hole are combined to form a conduit.

As shown in detail in FIG. 3, the table 1 has an upper circular plate 35 and a lower circular plate 34.
A plurality of circular apertures 36 are provided along the outer edge of the lower plate 34, and a plurality of semi-circular walls 37 are provided in the upper plate proximate the apertures 36 and forming the outer edges thereof. tube 33
are disposed to extend into each of the openings 36 at one end. When table 10 and block 22 rotate as described above, table 10 and block 2
Since the tube 33 is angled at the second
It rises within the opening 36 from the position shown on the right side of the figure to the position shown on the left side, and then descends again to the next position shown on the right side of FIG.

As shown in detail in FIGS. 3-5, a cylindrical portion 39 of a pinion 38 is inserted into each of the openings 36 of the plate 34 from the underside of the plate 34 through the opening 36. The pinion 38 is assembled by press-fitting the retaining ring 40 into the pinion. Plate 34 is counterbore so that retaining ring 40 can be positioned with its top surface flush against the top surface of plate 34. There is a gap between the opening 36 and the cylindrical portion 39, allowing the pinion 38 to rotate freely when assembled.

Next, referring to FIG. 1 in conjunction with FIGS. 4 and 5, a rack 41 is disposed close to a part of the rotation path of the table 10 and the block 22, and the rack 41 is arranged close to a part of the rotation path of the table 10 and the block 22. The teeth of the rack 41 and the pinion 38 are designed to mesh with each other. As shown in FIG. 2, rack 41 is mounted on a fixed base plate 24. As shown in FIG.

As shown in FIG. 1, the rack 41a on the most upstream side as viewed in the rotational direction of the table 10 is attached by a pin 60 so as to be able to pivot around one end, and a slot 64 is formed in the other end. A pin 62 is slidably inserted into this slot 64. Rack 41a is urged toward table 10 by spring 65. With this structure, when each pinion 38 enters into meshing relationship with the series of racks 41, 41a, there is no risk that the device will become stuck due to the meshing angle between the pinion 38 and the first rack 41a. Even in a situation where an unreasonable engagement occurs, the rack 41a turns away from the pinion 38 against the force of the spring 65, so that the pinion 38 rotates and properly engages the teeth of the rack 41a.

The means for engaging the pinion 38 is shown here as a rack in place, but this rack could also be replaced by a circular ring gear engaging the pinion 38 in a predetermined position.

Moreover, as shown in FIG.
At the location where a is placed, there is installed means for holding the nut N by contacting the outer surface of the brim of the nut N while the nut N is being processed. In a preferred embodiment, this holding means is constructed by wrapping the silicone belt 42 around a plurality of pins 43 to form an approximately arcuate belt surface. When the nut N rotates, this arcuate belt surface contacts the collar of the nut N located on the outside when viewed in the radial direction of the table 10.

Next, the operation of the device will be explained. No. 3,995,074; US Pat. No. 4,054,688;
No. 4,100,882. Briefly, as disclosed in U.S. Pat. No. 3,858,262, a preferred resin is fed into hopper 15 and conveyed to tube 33 by air pressure generated by an air pump. Air pressure is introduced into a circular bore 45 within the housing 11. In the present invention, since it is desired to continuously apply the resin to the fastener over a specific arc portion of the rotation path of the table 10, the specific arc portion where the resin is required to be continuously applied An arcuate bore 48 is formed in the housing 11 throughout. Hole 32 in rotating block 22 communicates with bore 45 in this particular arcuate portion. The circular bore 45 and the arcuate bore 48 constitute a blowing means for supplying the resin to the hole 32 under pressure.

Next, regarding FIG. 1, it is required to apply a detent patch over 360° of the female thread of the internally threaded part N, and in order to make the detent patch to a predetermined thickness, two coats of elastic thermoplastic resin are applied. The operation order will be explained when it is necessary to apply the product twice. When implementing the principles of the present invention, first,
A nut N is fed from a vibrating device or other known means (not shown) into a chute 50 around which a heating coil 51 is wound, where the nut N is such that the threaded surface of the nut N when contacted by the thermoplastic resin powder. It is deposited and heat from that surface is heated to a temperature sufficient to melt and form a continuous resin patch. When each nut N approaches the table 10, the semicircular wall 3 of the plate 35 of said table 10
It will be placed according to the number 7. This chute 50 constitutes a feeder in the present invention, and the heating coil 5
1 constitutes a heating means. The table 10 constitutes the support means of the present invention, and the upper surface of a cylindrical portion 39 provided on the pinion 38 forms a rotatable platform.

In the typical operating cycle described, a number of fasteners N are housed in a vibratory feeder or other device (not shown) from which the fasteners are fed to a feeder or chute 50;
As it passes through the heating coil 51, the threaded surface of the nut N is heated to a temperature sufficient to deposit the thermoplastic powder.

As a result, each nut is positioned as shown in FIGS. 4 and 5, and the collar of nut N is placed on the surface of table 10, close to semicircular wall 37, and forms a rotating platform. The nut N is supported by the cylindrical portion 39 of the pinion 38. Thereafter, the nut N is fed along the circumferential path of the table 10. During this time, the circular cross-section hole 32 into which the tube 33 was inserted communicates with the arcuate bore 48, as explained in connection with the prior art,
The resin raw material flows into the nut N through the bore 48 and the tube 33. When approaching the point where the raw material flows into the hole 32, the pinion 3 with the nut N placed on it
8 comes to mesh with the rack 41, and as the pinion 38 rotates, the nut N is rotated while the resin is applied to the threaded portion. Thus, the pinion 38 and the rack 41 constitute the rotating means of the present invention. In the area where the resin is applied to the threaded portion of the nut N, the collar of the nut contacts the silicone belt 42, so that the nut assumes an appropriate position relative to the tube 33 while the resin is applied to the nut. platform i.e. pinion 3
It is held on the cylindrical part 39 of 8.

As previously mentioned, the arcuate bore 48 is connected to the table 10.
Taking into account the rotation of each nut N with respect to the rotation of the nut N, the detent patch is designed and manufactured so as to cover a rotational arc portion of the table sufficiently to cover a predetermined portion of the internal thread to which the detent patch is to be applied. for example,
If it is required to apply a detent patch around the entire 360° circumference of the female threaded surface of the nut, the arcuate bore 48 should be applied over the arc that the table 10 travels during at least one 360° rotation of the fastener N. provided.

In the case of this embodiment, a second resin application is performed when the thickness obtained by one application is deemed insufficient. This second application is accomplished by a configuration similar to that described above.

As table 10 advances toward arm 14,
The table 10 is lifted away from the block 22 and upwardly relative to the tube 33 so that the nut N
can be easily taken out by simply sliding it toward the inclined surface 14a.

Here, each hood 13, 13a is provided with a negative pressure by a vacuum generator (not shown) and functions similarly to the system disclosed in the aforementioned US patent, applying a detent patch. It serves to remove excess resin when washing.

As is clear from the above description, this novel device and method is based on a collar in which an elastic thermoplastic resin detent patch is continuously applied over the entire 360° circumference of the female thread or over a predetermined portion of the female thread. Nuts or other types of internally threaded components may be provided.

Further, in the present invention, by tilting and rotating the table 10, which is the component support means, at a certain angle with respect to the rotating surface of the resin supply means, the components can be easily removed from the table. The tube 33 is held at a predetermined position for applying resin at the position where the application is performed, and is held under the table at the position where parts are to be removed from the table.

FIGS. 6 and 7 show another preferred embodiment in which the internally threaded part H is coated with anti-return resin.
In this embodiment, the supporting means table 69 consists of a lower support plate 72 of an upper positioning circular plate 70 which is generally horizontal. Both plates 70, 72 are connected to the upper housing 8.
The hub 74 rotates in a horizontal plane together with the hub 74, which is seated in a bearing 76 mounted on a bearing surface 78 of the bearing surface 78. The upper housing 80 is supported on a lower housing 82, and the lower housing 82 is slightly inclined with respect to the horizontal, so that its axis "L" coincides with the vertical rotation axis "U" of the upper housing 80.
It is inclined against. A disc or rotating block 84 supported on a lower bearing unit 86 rotates about the angled lower housing 82.
A ring gear 88 is attached to rotating block 84 at its inner periphery and to an annular support member 90 at its upper portion. The rotating block 84 and the annular support member 90 are each fixed to a lower disk 92, an intermediate disk 94 with a slightly smaller diameter, and an upper disk 94,
and supports these. Lower housing 82
The lower bearing unit 86 is supported on a ramp 98 on a horizontally disposed substrate 100. A drive wave wheel (not shown) can be engaged with ring gear 88 to rotate the entire rotatable unit of this embodiment in a manner similar to that described in the previous embodiment.

As shown in FIG. 7, at least one wide-mouth conduit 102 having a fan-shaped or triangular horizontal cross-section is provided in the lower housing 82 and opens diametrically into a plurality of radial circular passages 104 provided in the rotating block 84. It's summery. This wedge-shaped conduit 102 serves as a passage 104 for resin supply.
A blowing means is configured to supply resin under pressure to the resin. A tube 106 extending radially from each passageway 104 extends through a radial bore 108 in the annular support member 90 and into an upwardly disposed bore 110 in the lower disk 92 . The tube 106 has a flexible portion 11 in the middle thereof to facilitate assembly of the device.
Contains 2. Each hole 110 communicates with an opening 114 at the lower end of a resin supply 116 constituting the resin supply means. The elongated conduit 118 of the mechanism 116 is connected to a bushing 1 disposed near the periphery of the lower disc 92.
It is rotatably supported within 20. Pinion gear 1 fixedly attached to conduit 118
22 is permanently engaged with an annular rack 124 which completely surrounds the intermediate disc 94 and has inwardly aligned teeth. An annular rack 124 is rigidly supported by an outer support structure 126 and is disposed in the same plane of rotation as the intermediate disk 94. Each conduit 118 is pivotally supported by an upper bushing 128 mounted in a hole near the outer periphery of the upper disc, and is supported by a lower support plate 72.
It extends through a generally rectangular opening 130 located near the outer edge of the.

The outer edge of the upper positioning plate 70 is provided with regularly spaced cutouts 132 that closely match the profile of the individual threaded parts to be placed, and which cutouts 132 fit into the openings 130 of the lower support plate 72. They are lined up at regular intervals above.

The operation of this embodiment begins with the rotation of the table 69 and the sequential placement of a plurality of heated threaded parts H into each notch 132, as described above. Resin (not shown) is injected into the lower housing 82 as in the previously described embodiment and fills each passageway communicating with each wide-mouth wedge conduit 162 as it rotates through the wide-mouth wedge conduit 102. 1
04 and passes through the tube 106 to the application mechanism 1.
Enter within 16. A flange 134 is attached to the distal end of the application mechanism 116 to direct the flowing resin toward the central portion of the threaded component H. Since the aforementioned pin 29 is slidably inserted from the upper disk 96 into the circular hole 30 of the upper positioning plate 70 and the lower support plate 72, the upper plate 70 and the lower plate 72 are both attached to the lower disk 9.
2. Rotates at the same speed as the middle disk 94 and the top disk 96. As both wheels rotate, the teeth of the pinion 122 and the teeth of the rack 124 mesh to provide rotational movement of each resin supply mechanism 116 itself about its axis, thereby extending the entire inner circumference of each threaded part H. Alternatively, the detent resin is applied over a predetermined angular range depending on the width of the outlet side of the wedge-shaped conduit 102.

The upper positioning plate 70 and the lower support plate 72 continue to rotate in the horizontal plane, and the resin supply mechanism 11
6 continues to rotate in a plane slightly inclined relative thereto, the resin supply mechanism 116 is pulled down from moving along a circumferential path within each opening 130 to moving along a circumferential path below the opening 130. Since the planes are pulled apart, the threaded part H coated with detent resin can be removed therefrom and then the uncoated threaded part H can be introduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a self-locking internally threaded fastener manufacturing apparatus constructed based on the principles of the present invention, and FIG. 2 is a vertical cross-section along the line - of FIG. 1 showing details of the structure of FIG. 1. Figure 3 is the first
FIG. 4 is an enlarged exploded perspective view showing the constituent members of a typical nut supporting platform having the structure shown in FIGS. Line V-V in the diagram
6 is a partial longitudinal sectional view of another embodiment of a self-locking internally threaded fastener manufacturing apparatus, and FIG. 7 is a sectional view taken along the line - of FIG. 6. In the figure, reference numerals of main parts are as follows. 10...Table, 11...Fixed housing, 12...Mounting chute, 13, 13a...
...Hood, 14...Arm, 14a...Slope, 15
...Hopper, 16...Hub, 17...Ball bearing,
18... Bearing surface, 20... Bearing surface, 22... Rotating block, 23... Ball bearing unit, 24... Support structure, 26... Tang gear, 28... Gear, 2
9... bottle, 30... circular hole, 32... circular cross section hole, 33... tube, 34... lower plate,
35... Upper plate, 36... Hole, 37... Semicircular wall, 38... Pinion gear, 39... Cylindrical flange, 40... Fixed ring, 41, 41a...
...Rack, 42... Silicone belt, 43... Pin, 45... Circular bore, 48... Arc-shaped bore, 50
... Shoot, 51 ... Heating coil, 60, 62
...Pin, 64...Slot, 65...Spring, 69
... Table of the second embodiment, 70 ... Upper positioning plate, 72 ... Lower support plate, 74 ...
...Hub, 76...Bearing, 78...Bearing surface, 80...
... Upper housing, 82 ... Lower housing, 8
4... Rotating block, 86... Lower bearing unit, 88... Ring gear, 90... Annular support member, 92... Lower disk, 94... Intermediate disk, 96
. . . Upper disc, 98 .
... flexible portion, 114 ... opening, 116 ... application mechanism, 118 ... elongated conduit, 120 ... bushing, 122 ... pinion gear, 124 ... annular rack, 128 ... upper bushing, 130 ...
Opening, 132...Notch.

Claims (1)

[Claims] 1. An apparatus for applying a detent resin to a series of female threaded parts N, comprising: a feeder 50 that almost continuously supplies the female threaded parts N; and a feeder 50 that supplies the female threaded parts N to the feeder 50. A support provided along the processing path so as to support the female threaded part N in a state where the axis of the threaded part of the female threaded part faces upward and downward and the opening at the lower end of the threaded part is not blocked. means 10; 69; heating means 51 for heating the threaded portion of the female threaded part N to a temperature higher than the softening temperature of the resin to be applied; A heat-melting resin is applied upward from the opening at the lower end of the attached part N to a predetermined part of the threaded part of the female threaded part N, and the resin is softened by the heat of the threaded part, and the resin is applied to the part. Resin supply means 33, 4 for depositing
8; 102, 106, and rotation means 38, 41 for causing relative rotation between the female threaded part N and the resin supply means while the resin supply means is supplying the resin. ; 122, 124; 2. In the device according to claim 1, the rotating means 38, 41; 122, 124
The apparatus is configured to rotate the resin supply means within the female threaded component N and apply resin within a predetermined arc length range of the threaded portion of the female threaded component N that is not rotating. 3. In the device set forth in claim 1, the female threaded part N is rotatably supported by the support means 10, and the rotation means 38, 41 are
An apparatus configured to rotate the female threaded part N on the support means 10 and apply resin within a predetermined arc length range of the threaded portion of the female threaded part N. 4. In the device set forth in claim 3, the support means 10 is formed with a notch 37 along its periphery that can engage with the internally threaded component N;
A device consisting of a circular plate 35 rotatably mounted around the housing 11. 5. In the device set forth in claim 2, a disc 92 is provided rotatably arranged around the lower housing 82, and the resin supply means 118 is connected to the disc 92 below the female threaded part N. 92, and the rotating means includes a pinion gear 122 provided around the resin supply means 118. 6. Apparatus as claimed in claim 5, wherein said rotating means comprises a rack 124 disposed around said disc 92 and meshing with said pinion gear 122. 7. In the device set forth in claim 5, the support means 69 is configured to be rotatable within a horizontal plane, and the disc 92 is configured to rotate within a plane slightly inclined with respect to the rotation plane of the support means 69. A device configured to rotate freely. 8. In the device set forth in claim 5, the lower housing 82 has a fan shape for supplying resin to the resin supplying means 118 within a predetermined arc length range when the resin supplying means 118 rotates. A device comprising at least one conduit 102 of horizontal cross section. 9. In the device set forth in claim 7, the slope between the rotating surface of the supporting means 69 and the rotating surface of the disc 92 is such that, as the resin supplying means 118 rotates, the female threaded part A device sized to be inserted into and removed from said opening of N. 10. The apparatus according to claim 3, wherein the support means 10 comprises a plurality of rotatable platforms 39 arranged along the processing path.
and is adapted to receive the internally threaded part N on each of the platforms 39, and the rotation means 41 is provided adjacent to the path of the support means 10 and is adapted to receive the female threaded part N on each of the platforms 39. With this configuration, when the support means 10 moves along the path, the hot-melt resin can be applied to a desired circumferential portion of the threaded portion of the female threaded component N. Summer device. 11. In the device according to claim 10, the platform 39 has a pinion 38 disposed below the internally threaded part N supported by the platform 39, and the pinion 38 is in contact with the a rack 41 is disposed along the path as a contact means for contacting the contact portion of the platform 39, the rack 41 having a plurality of teeth meshing with the pinion 38; . 12. The device according to claim 10, wherein the support means 10 is a rotatably mounted circular table, and the platform is movable along the path around the circular table. 39. 13. In the device according to claim 10, means 42 for holding the female threaded part N on the platform 39 during rotation are provided adjacent to the rotation means 38, 41. Device. 14. The device according to claim 13, wherein the means for holding the internally threaded part N on the platform 39 during rotation is in contact with the internally threaded part during rotation of the internally threaded part. A device consisting of a belt 42 arranged as follows. 15 In an apparatus for applying an elastic resin detent patch to a series of female threaded parts N having openings at both ends of the threaded part, the feeder 50 continuously supplies the female threaded parts N in sequence; The female threaded part N is received from 50, and the female threaded part N is continuously threaded along the processing path with the axis of the threaded part of the female threaded part N facing in the vertical direction and both ends of the threaded part being substantially unblocked. Support means 10 adapted to transport part N
and heating means 51 for heating the threaded portion of the female threaded component N to the softening temperature of the resin to be coated, and a predetermined resin coating on the threaded portion of the female threaded component N corresponding to the female threaded component N. In a substantially fixed relationship with respect to the part, particles of a hot melt resin are sent upward toward the part of the threaded part from the opening at the lower end of the threaded part of each female threaded part N, and the resin is transferred to the part of the threaded part. and resin supply means 33 and 48 for softening the resin by heat of the threaded part and depositing it on the part, the supporting means 10 each having the female threaded part N
a plurality of rotatable platforms 39 adapted to receive one of the plurality of rotatable platforms 39, the rotatable platform 39 being adapted to contact each of the platforms 39 while the platform 39 is moving along the path; Rotating means 38, 41 for rotating the platform 39 and the female threaded part N disposed on the platform 39 by a predetermined angle;
is provided adjacent to the path. 16. In the device according to claim 15, each of the platforms 39 includes a pinion 3 disposed below a female threaded part disposed on the platform 39.
8, and the rotating means is provided with the pinion 3.
8. A device comprising a rack 41 with a plurality of teeth interlocking with each other. 17. The device according to claim 16, wherein the support means 10 is a rotatable circular table, and the platform 39 is arranged around the circumference of the table so as to be able to move along a circular path. equipment placed along the line. 18. In the device according to claim 17, holding means 4 for holding the internally threaded part N on the platform 39 during rotation.
2 is a device provided adjacent to the rotating means 38, 41. 19. The device according to claim 18, wherein the holding means comprises a belt 42 arranged to contact the internally threaded part N during rotation of the internally threaded part N. 20 In an apparatus for applying a detent patch of elastic thermoplastic resin to a female threaded part N having openings at both ends of the threaded part, the device receives a plurality of female threaded parts N and rotates the female threaded parts N in a rotating plane. a rotatable support means 10 having a rotating surface 39; having at one end of the opening;
a plurality of conduits 32, 33 arranged below the support means 10, the conduits 32, 33 having a second tube for receiving the thermoplastic resin to be applied to the threaded portion of the internally threaded part N; The plurality of conduits 32 and 33 have an opening at the other end, and the plurality of conduits 32 and 33
blowing means 45 that is rotatable in a plane inclined with respect to the rotation plane of 0, and supplies thermoplastic resin under pressure to the second openings of the conduits 32 and 33;
48; and the plurality of conduits 32, 33 are connected to the support means 10.
a connecting means 29 connected to the supporting means 10 so as to rotate in conjunction with the supporting means 10; and a driving means 38 for rotating the supporting means 10 and the conduits 32, 33, and the female threaded part N is connected to the supporting means 10. 10, said conduits 32, 33 are in communication with said blowing means 45, 48. 21. The device according to claim 20, in which the support means 10 and the conduit 32,
33 rotates the first of the conduits 32, 33.
device in which the aperture of the support means 10 can be moved up and down with respect to the surface 39 of the support means 10. 22 In the device set forth in claim 21, the support means 10 has a plurality of rotatable platforms 39, each of which supports the female threaded part N one by one. Means 41 are provided which are configured to receive and contact said platform 39 adjacent to the path of rotation of said support means 10, said contact causing said platform 39 to be in a predetermined position in response to rotation of said support means 10. A device that can now be rotated by an angle. 23 In a method of applying an elastic detent resin to a series of female threaded parts N having ends with threaded openings, the axes of the threaded parts of the female threaded parts N are oriented vertically, and the threaded parts The female threaded part N is moved along the processing path while supporting the female threaded part N in a state where the opening of the female threaded part N is substantially not blocked, and the threaded part of the female threaded part N is coated with the resin to be applied. heated above the softening temperature, and while the female threaded part N is moved along the path, a powder of hot melt resin is applied upwardly by the application means from the opening at the lower end of the female threaded part N; Supplying the resin powder to a certain part of the threaded part, softening the resin powder by the heat of the threaded part and depositing it on the part, and applying the resin powder to the female threaded part N and the application means while supplying the resin powder. A method consisting of rotating the and by a predetermined rotational angle relative to each other around their respective axes at a substantially uniform rotational speed. 24. A method as claimed in claim 23, in which the internally threaded part is rotated relative to the support means and the application means. 25. A method as claimed in claim 23, in which the application means is rotated relative to the support means and the internally threaded part. 26. A method as claimed in claim 23, wherein the internally threaded part is moved along a circular path by support means. 27. The method according to claim 23, wherein the detent resin is applied over a 360° range of the threaded portion of the female threaded component. 28. The method according to claim 27, wherein the female threaded part is rotated in a horizontal plane, and the application means is rotated in a plane inclined with respect to the horizontal plane. 29. The method according to claim 27, wherein the application means is rotated in a horizontal plane, and the female threaded part is rotated in a plane inclined with respect to the horizontal plane. 30. Supporting means 10 for supporting an internally threaded component in the method according to claim 28;
Rack and pinion mechanism 3 linked to the rotation of 69
8, 41; 122, 124, a method in which relative rotation between the internally threaded part N and the application means is effected. 31. In the method set forth in claim 29, the pinion 38 is provided on the platform 39 of the support means 10 for supporting the female threaded part, and the rack is linked to the rotation of the support means 10.
A method in which rotation of the internally threaded part N relative to the application means is effected by pinion mechanisms 38, 41.