JP5118831B2 - Loosening agent application device for screw members - Google Patents

Description

  The present invention relates to an apparatus for applying a locking agent to a thread portion of a screw member. In the present specification, the term “screw member” includes, for example, a fastener having a threaded portion such as a bolt, a screw, a stud, a nut, a Rozan fastener, and a tex.

  In this type of fixing tool, a locking agent is applied to the screw portion of the fixing tool in order to prevent loosening caused by vibration or external force. As a known technique for applying a locking agent to the screw portion of the fixing tool, both the lower surface of the bolt head are sandwiched between the left and right guide plates, and an adhesive is applied to the outer periphery of the exposed bolt shaft. There are known ones (see Patent Document 1) and those in which a screw is rotatably held between its head and tip, and a locking agent is applied to the rotating screw (see Patent Document 2). ing.

By the way, as is well known, this type of fixing device is provided in various dimensions depending on the purpose of use, such as a thick one, a thin one, a short one or a long one. Various materials are also provided depending on the place of use and field of use.
Real Kaihei 7-39961 JP-A-10-230206

  The method of applying a locking agent by sandwiching a fixing device mechanically as disclosed in Patent Document 1 and Patent Document 2 can be applied regardless of the material of the fixing device to be processed. It is necessary to configure and adjust the device according to the size of the tool, and it can be processed efficiently when applying a locking stopper to the same size and the same shape of the fixture. When processing a relatively small amount, there is a problem that parts of the clamping mechanism must be replaced or adjusted each time.

  In addition, in a conventionally known apparatus provided with this type of mechanical clamping mechanism, a mechanism for mechanically clamping a fixing tool to be processed is employed, so that the number of parts used increases and the structure of the apparatus itself is complicated. In addition to being bulky and expensive, there is a problem in that maintenance is troublesome.

  In order to solve such a problem, there has conventionally been considered a method in which the head of the fixing tool to be processed by vacuum suction is sucked and held in a cantilevered manner. Air leaks from the groove and the groove and cannot be adsorbed skillfully.

  In addition, it is not impossible to partially apply the locking agent over the entire circumference of the predetermined part of the screw part of the fixing tool in the method of sandwiching the fixing tool mechanically and applying the locking agent. The cost was high.

  On the other hand, this kind of fixing tool is widely used as a material made of a magnetic material such as iron, and the ratio to the whole including other materials is also considerable.

  In view of the problems associated with such a conventional loosening agent coating apparatus equipped with a mechanical clamping mechanism and the ratio of the material of the fixing tool used, the present invention only applies to a screw member made of a magnetic material. It is an object of the present invention to provide a device for applying a locking agent for a screw member using a magnetic force that has a simple structure, can be reduced in size, and can process screw members having a wide range of sizes and shapes without substantial adjustment of the device. .

To achieve the above object, according to the present invention, a rotation holding device that rotatably holds a screw member, a screw member supply device that sequentially supplies the screw member to the rotation holding device, and a rotation A device for applying a locking agent to the threaded portion of the screw member, and a locking agent supplying device that supplies a locking agent to each screw member that is pivotally held by the holding device;
The rotation holding device is a disk that is rotationally driven in a horizontal plane, and is provided around the disk so as to be spaced apart from each other. A plurality of permanent magnets that sequentially magnetically attract the heads of the screw members to hold them in a cantilever manner and a guide member provided along the travel path of the permanent magnets, and the permanent magnets contact the guide members Configured to rotate with the
The screw member supply device includes a disk-shaped rotating body configured to rotate in synchronization with each permanent magnet along a plane perpendicular to the attracting surface of each permanent magnet of the rotation holding device. The rotating body is formed radially at intervals of 45 °, and includes a plurality of grooves that respectively receive the screw portions of the screw members from the linear feeder, and the screw members received in the respective grooves correspond to each other in a horizontal state. Configured to be sequentially attracted to the attracting surface of the permanent magnet,
The loosening agent supplied to the screw part of the screw member by supplying the anti-loosening agent to the screw part of each screw member that moves from the screw member receiving part to the loosening agent application part while rotating by the loosening agent supply device The present invention is characterized in that the stopper is extended to a designated portion of the screw portion of the screw member .

  Furthermore, in the apparatus of the present invention, a drying device for drying the extended loosening agent applied to each screw member and extending to a designated portion of the screw portion of the screw member may be provided along the movement path of the permanent magnet.

  In the screw member loosening agent coating apparatus according to the present invention, each screw member is supported rotatably, and the head of the magnetic screw member from the screw member supply device is sequentially magnetically adsorbed by the screw member receiving portion. A plurality of permanent magnets held in a cantilever manner, and a guide member that is provided along the movement track of each permanent magnet and that rotates along with the movement of each permanent magnet, and moves while rotating the screw member By providing a spreading device that spreads the loosening prevention agent supplied to the screw part of the screw member around the screw part of the screw member in the moving direction forward from the loosening agent application part. The device itself can be simplified and reduced in size, can be manufactured at low cost, and the number of parts used can be greatly reduced compared to the mechanical type. To provide It can be. In addition, an anti-loosening agent with a uniform film thickness is automatically applied only to the desired part of the threaded portion of various screw members having a size and shape within the predetermined range without requiring replacement of parts of the apparatus or troublesome adjustment. Can be applied.

  In addition, when a drying device for drying the loosening prevention agent applied to each screw member and extending to the designated portion of the screw portion of the screw member is provided along the movement path of the permanent magnet, the drying device is received from the screw member mounting device. When the screw member is delivered from the rotation holding device, the applied locking agent is in a dry state, and the screw member can be boxed as it is.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 6 show an embodiment of a screw member loosening agent coating device according to the present invention. Reference numeral 1 denotes a support, on which a screw member rotation holding device 2 and a rotation holding device 2 are provided. A screw member supply device 3 that sequentially supplies the screw member A to the screw member and a loosening agent supply device 4 that supplies a locking agent to each screw member that is rotated and held by the rotation holding device 2 are provided.

  As shown in FIGS. 2 and 3, the screw member rotation holding device 2 is provided around a rotary disk 21 mounted on a vertical drive shaft connected to a drive device (not shown) provided inside the support base 1. A cylindrical permanent magnet 25 is attached to the outer end of the rotating shaft 23 attached to a plurality of radially spaced apart bearings 22 via a rubber member 24. A rotating roller 26 is attached to one end. Each rotating roller 26 comes into contact with a guide member 27 made of silicon rubber provided on the support base 1 along the outer periphery of the rotating disk 21, so that the rotating disk 21 is rotated by a driving device (not shown). Then, each rotating roller 26 rotates on the guide member 27, and accordingly, each permanent magnet 25 is also configured to move while rotating. The guide member 27 does not need to be provided along the entire circumference of the rotary disk 21 and rotates the permanent magnet 25 at least from the start of the application of the locking agent to the screw member to the end of the drying process. Can be provided.

  As shown in FIGS. 1, 3 and 4, the screw member supply device 3 includes an alignment feeder 31 for aligning the screw members A, and the alignment feeder 31 is any suitable suitable for the screw member A to be processed. Formats can be used. From the outlet 32 of the alignment feeder 31, the linearly moving feeder 33 extends substantially parallel to the tangential direction with respect to the track of the cylindrical permanent magnet 25 attached to the periphery of the rotary disk 21. A disc-like rotating body 34 is provided adjacent to the front end portion, that is, the end portion of the rectilinear feeder 33, along a plane perpendicular to the attracting surface of each permanent magnet 25 in the rotation holding device 2. In the rotary body 34, eight grooves 35 that receive the threaded portions of the screw member A sent from the rectilinear feeder 33 are radially formed at equal intervals on the circumference on the side facing the tip of the rectilinear feeder 33. Yes. That is, these grooves 35 are spaced apart by 45 ° on the circumference of the disk-shaped rotating body 34. The width, depth, and length of each groove 35 can be determined according to the size range of the screw member A to be processed. The disk-shaped rotating body 34 is driven and controlled to rotate stepwise via the index device 36.

  As shown in FIG. 4, guide plates 37 are provided apart from the side surface on which the eight grooves 35 of the disk-shaped rotating body 34 are formed, and the guide plates 37 are provided in the respective grooves 35 from the front end portion of the rectilinear feeder 33. Until the screw member A received in step S3 is attracted to the attracting surface of the corresponding permanent magnet 25 in the rotation holding device 2, the screw member A in the groove 35 is guided so as not to fall off. That is, the guide plate 37 extends in an arc along the circumference of the disk-shaped rotating body 34 from the substantially edge of the permanent magnet 25 at the outlet 38 at the tip of the linear feeder 33 to the level of the substantially upper end of the permanent magnet 25. The disc-shaped rotating body 34 is provided apart from the side surface. As a result, each screw member A to be processed received from the outlet 34 at the tip of the linear feeder 33 is in a state where its head is located on the outer peripheral surface of the disk-shaped rotating body 34 and suspended in the groove 35. Thus, the rotary holding device 2 is rotated by approximately 45 ° to the level of the attracting surface of the permanent magnet 25 and is attracted to the attracting surface of the corresponding permanent magnet 25 in the rotating and holding device 2. It moves out of the side groove and moves horizontally.

In the case of the illustrated embodiment, the index device 36 is configured to be able to process screw members in the range of screw diameters M3 to M12. When the size of the screw member A to be processed changes, the index device is changed. The groove width of the linear feeder 32 can also be adjusted.

  The loosening prevention agent supply device 4 is located at a position adjacent to the outer periphery of the rotation holding device 2, and a loosening prevention agent tank 41 provided thereabove and a loosening prevention agent supply attached to the lower end of the loosening prevention agent tank 41. Nozzle 42. The loosening prevention agent tank 41 is rotatably attached to the support member 43, and the loosening prevention agent supply nozzle 42 is on the track of the threaded portion of the screw member A that is adsorbed on the adsorption surface of the permanent magnet 25 of the rotation holding device 2. It is possible to move between the position and the position deviated from the track of the threaded portion of the screw member A. Thereby, it can align easily to the site | part which should apply | coat the locking agent in the thread part of the screw member A. FIG. The shape of the tip of the locking agent supply nozzle 42 can preferably be selected or adjusted according to the axial length of the site where the locking agent in the threaded portion of the screw member A is to be applied. Further, if necessary, the nozzle tip may be exchanged according to the axial length of the portion where the anti-loosening agent should be applied.

  Further, as shown in FIGS. 5 and 6, each screw member A is prevented from loosening in the moving direction downstream of the screw member A to be processed from the position of the loosening agent supply nozzle 42 along the trajectory through which each permanent magnet 25 passes. A spatula member 5 is provided which forms a spreading device that spreads the loosening prevention agent applied by the agent supply nozzle 42 uniformly around the threaded portion of the screw member A. This spatula member 5 functions so as to elastically contact the threaded portion of the screw member A to be processed moving while rotating and to spread the loosening prevention agent uniformly around the threaded portion of the screw member A. To do. By this rotation of the spatula member 5 and the screw member A itself, the locking agent can be applied around the threaded portion of the screw member A with a uniform film thickness. In addition, by setting the width of the spatula member 5, the application width of the loosening prevention agent can be adjusted. Further, the spatula member 5 can be displaced laterally with respect to the moving track of the screw portion of the screw member A to be processed according to the position of the application site in the screw portion of the screw member A.

  Furthermore, as shown in FIG. 6, a jet outlet 6 of a hot air heater for drying is provided downstream in the movement direction from the position where the spatula member 5 is installed, and is uniformly around the screw portion of the screw member A. The applied anti-loosening agent is dried.

  In FIG. 1, reference numeral 7 denotes an operation panel, which can set the operation of the apparatus according to the type and size of the screw member A to be processed, thereby enabling automatic operation of the apparatus.

The operation of the illustrated apparatus configured as described above will be briefly described below.
First, the operating conditions of the apparatus are set using the operation panel 7, the power is turned on, and the apparatus is started. Thereby, the screw members A to be processed, which are put in the alignment feeder 31 of the screw member supply device 3, are sequentially aligned, sent from the outlet 32 of the alignment feeder 31 to the linear feeder 33 , and transferred along the linear feeder 33. Is done. The screw member A that has reached the end portion of the linear feeder 33 is received by the groove 33a that has been opposed by the progressive rotation of the disc-shaped rotating body 33, and is carried toward the screw member rotation holding device 2, The head is attracted to the attracting surface of the corresponding permanent magnet 25 in the screw member rotation holding device 2. As a result, the screw member A moves away from the disk-shaped rotating body 34 of the screw member supply device 3 while rotating along the moving track of the permanent magnet 25. When the screw member A reaches the lower part of the locking agent supply nozzle 42 of the locking agent supply device 4, the locking agent drops from the locking agent supply nozzle 42 onto a predetermined portion of the threaded portion of the screw member A. Subsequently, the dripped locking agent is uniformly spread around the predetermined portion of the screw portion of the screw member A by the spatula member 5, and the screw member A moves while rotating. The loosening prevention agent is reliably applied to a uniform film thickness. And it dries with the warm air from the jet nozzle 6 of a warm air heater. Also in this case, since the screw member A moves while rotating, it can be effectively dried in a short time. After that, the screw member A that has been processed is sequentially removed from the permanent magnet 25 of the screw member rotation holding device 2 and is sent to a boxing or bagging process.

  By the way, in the illustrated embodiment, the screw member rotation holding device 2 is configured such that a plurality of permanent magnets 25 are provided apart from each other around the rotary disk 21 and the screw member A is moved along a circular track. However, instead of the rotation holding device, a plurality of permanent magnets may be provided apart from the endless belt hung on the drive wheel and the driven wheel, and the screw member may be moved along the elliptical track. .

  In the illustrated embodiment, the spatula member 5 is used as the spreading device, but other means such as a brush member may be used instead.

The schematic perspective view which shows the whole structure of one Embodiment of the locking agent application | coating apparatus of the screw member of this invention. The schematic partial longitudinal cross-sectional view which shows the principal part of the screw member rotation holding | maintenance apparatus in the coating device of FIG. The schematic partial cross-sectional view which shows the principal part of the screw member supply apparatus in the coating device of FIG. The schematic perspective view which shows the relevant structure of the principal part of the screw member rotation holding | maintenance apparatus and screw member supply apparatus in the coating device of FIG. FIG. 2 is a schematic partial longitudinal sectional view showing a configuration of a locking agent supply device, a screw member rotation holding device, and a configuration in the coating apparatus of FIG. 1. The schematic side view which shows arrangement | positioning structure of the locking agent supply apparatus, spreading apparatus, and drying apparatus in the coating device of FIG.

Explanation of symbols

1: Support base 2: Screw member rotation holding device 21: Rotating disk 22: Bearing 23: Rotating shaft 24: Rubber member 25: Cylindrical permanent magnet 26: Rotating roller 27: Guide member made of silicon rubber 3: Screw Member feeder 31: Alignment feeder 32: Exit of alignment feeder 31 33: Linear feeder 34: Disk-like rotating body 35: Groove 36: Index device 37: Guide plate 38: Exit at the tip of the linear feeder 33 4: Locking prevention Agent supply device 41: Loosening agent tank 42: Loosening agent supply nozzle 43: Support member 5: Spatula member 6: Hot air outlet 7: Operation panel

Claims (3)

A rotation holding device that rotatably holds the screw member, a screw member supply device that sequentially supplies the screw member to the rotation holding device, and a locking agent for each screw member that is rotated and held by the rotation holding device A device for applying a locking agent to the threaded portion of the screw member,
The rotation holding device is a disk that is rotationally driven in a horizontal plane, and is provided around the disk so as to be spaced apart from each other. A plurality of permanent magnets that sequentially magnetically attract the heads of the screw members to hold them in a cantilever manner and a guide member provided along the travel path of the permanent magnets, and the permanent magnets contact the guide members Configured to rotate with the
The screw member supply device includes a disk-shaped rotating body configured to rotate in synchronization with each permanent magnet along a plane perpendicular to the attracting surface of each permanent magnet of the rotation holding device. The rotating body is formed radially at intervals of 45 °, and includes a plurality of grooves that respectively receive the screw portions of the screw members from the linear feeder, and the screw members received in the respective grooves correspond to each other in a horizontal state. Configured to be sequentially attracted to the attracting surface of the permanent magnet,
The loosening agent supplied to the screw part of the screw member by supplying the anti-loosening agent to the screw part of each screw member that moves from the screw member receiving part to the loosening agent application part while rotating by the loosening agent supply device An apparatus for applying a locking agent for a screw member, wherein the locking agent is configured to extend to a designated portion of a screw portion of the screw member. The screw member supply device is positioned adjacent to the alignment feeder for aligning the screw members, the linear feeder extending from the alignment feeder, and the tip of the linear feeder, and is a plane perpendicular to the attracting surface of each permanent magnet of the rotation holding device And a screw member mounting device configured to rotate in synchronization with each permanent magnet and sequentially attract the screw member at a position facing the attracting surface of each permanent magnet. Item 2. An apparatus for applying a locking agent for a screw member according to Item 1. Furthermore, the drying apparatus which dries the locking agent applied to each screw member and spread around the threaded portion of the screw member is provided along the traveling track of the permanent magnet. A device for applying a locking agent for a screw member according to the description.

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