JPH03211039A - Fitting device for nonskid material - Google Patents

Abstract

PURPOSE:To fit reliably and swiftly, by a method wherein at the time of pressing-in and fitting of a nonskid material into a fitting hole for a synthetic resin molded product, a central part of the upper part is pushed into the fitting hole at a final stage of insertion by applying concentrated load to the central part with a pinlike thrusting and pushing part. CONSTITUTION:At the final stage of insertion of a grommet, the same is not entered with only pressing force by a spring 20, that is, spring force, a grommet supporting part 17 is pushed back on the contrary and the spring 20 is caused to bend. Consequently, only a main spindle 11 is lowered relatively as a movement, a thrusting and pushing part 16b provided on the undersurface of the main spindle 11 comes out of an opening part 17b of the grommet supporting part 17, collided with the central part of the surface of an upper collarlike part 18a of the grommet 18 and the central part is pushed in concentrically in an axial direction. When concentric pressing load is applied to the central part of the surface of the upper collarlike part 18a like this in the grommet 18, such a deformation as to deviate in the axial direction is generated on the outer sircumference of the grommet 18, which and a rotation of the grommet 18 must go hand in hand to insert the grommet 18 reliably into a fitting hole.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-slip material attachment device, and more particularly, it relates to a non-slip material attachment device, and more specifically, a device for attaching anti-slip material to a mounting hole of a molded product made of synthetic resin, such as a pallet. The present invention relates to a device for press-fitting an anti-slip material made of an elastic material with a portion formed therein.

(Prior Art) Conventionally, a device for press-fitting an anti-slip material (hereinafter referred to as a grommet) made of an elastic material with flanges formed at both ends of the body into a mounting hole of a synthetic resin molded product is disclosed in Japanese Patent Application Laid-open No. 58-1999. 28316
It is known from the publication no.

The anti-slip material attaching device disclosed in this publication includes a tubular insertion shaft that is vertically movably supported on a rotating shaft, and a positioning member that holds a grommet is attached to the tip of the insertion shaft. Negative pressure is applied to the central through hole of the tubular insertion shaft, whereby the positioning device suctions and holds the grommet. Further, a spring force is applied to the insertion shaft via the sleeve.

According to the conventional anti-slip material attaching device configured as described above, the grommet is suctioned and held by the positioning member attached to the tip of the insertion shaft by negative pressure, and the insertion shaft is rotated by the rotating shaft. Next, the synthetic resin molded product whose mounting hole is positioned directly below the grommet is lifted, the grommet is relatively applied to the mounting hole of the synthetic resin molded product, and as the synthetic resin molded product continues to rise, The insertion shaft is pushed up through the grommet, which causes the spring to bend and a pressing force is applied to the grommet, and this pressing force causes the grommet to be press-fitted into the mounting hole of the synthetic resin molded product while rotating.

(Problem to be Solved by the Invention) However, in the conventional anti-slip material mounting device, the grommet is not press-fitted into the mounting hole as quickly as described above, and sometimes the grommet may not be inserted. There was sex. Therefore, in the past, measures have been taken to reduce the contact friction with the inner wall of the mounting hole when the grommet is inserted by spraying a lubricant (for example, water) into the mounting hole.

The object of the present invention has been made to solve the problems of the conventional art. An object of the present invention is to provide a stopper attachment device.

(Means for Solving the Problem) The present invention provides a non-slip material mounting device that press-fits a non-slip material made of an elastic material with flanges formed at both ends of a body into a corresponding mounting hole of a synthetic resin molded product. , a main shaft supported so as to be movable in the axial direction; a pin-shaped pushing part provided on an end surface of the main shaft and protruding in the same direction as the longitudinal direction of the main shaft;
a grommet support member that is attached to the end of the main shaft so as to be slidable in the longitudinal direction thereof, and has an opening through which the pushing part enters and exits, the opening being smaller than the surface of the flanged part at one end of the anti-slip material; a holding means for securing the anti-slip material to the grommet support member when the anti-slip material is brought into close contact with the grommet support member so as to close the opening with the surface of the flanged portion at one end; The holding portion includes a spring disposed between the main shaft and the holding portion to apply a biasing force in a direction away from the main shaft.

(Function) According to the anti-slip material attachment device of the present invention, the surface of one brim of the grommet is brought into close contact with the grommet support member so as to close the opening thereof, and at the same time is secured to the grommet support member by the holding means. . Then, the entire anti-slip material attachment device is moved to position the grommet directly above the grommet attachment hole of the synthetic resin molded product. Thereafter, the main shaft is lowered and the grommet begins to be pushed into the mounting hole by the spring force biased by the grommet support member. but,
When the resistance due to the insertion of the grommet into the mounting hole increases, the spring force will not allow the grommet to enter the mounting hole, and the main shaft will move down while deflecting the spring, causing the bottle-shaped pushing part provided on the end surface to Move away from the opening of the grommet support member and hit the center of the surface of the brim at one end of the grommet, and push in this part intensively. When a concentrated pressure load is applied to the center of the surface of the brim at one end of the grommet, the outer periphery of the grommet is deformed to shift in the axial direction, making it easier to insert the grommet into the mounting hole. Ru.

(Embodiments) Hereinafter, the anti-slip material attaching device of the present invention will be described in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows an anti-slip material attachment device 10 according to an embodiment of the present invention. The anti-slip material attachment device 10 includes a main shaft 11 which is axially movable and rotatably supported about a longitudinal axis.

That is, the main shaft 11 is supported by a cylindrical body 13 mounted upright on a fixed base 12 so as to be slidable up and down. A cylinder device 14 is connected to the upper part of this cylindrical body 13, and its piston rod 14a is connected to the main shaft 11 via a thrust bearing device 15. The thrust bearing device 15 prevents the rotation of the main shaft 11 from being transmitted to the piston rod 14a, and as a result, the main shaft 11 can be moved vertically by the cylinder device 14 and can also rotate. Note that a rotational drive mechanism for rotating the main shaft 11 is not shown in the figure, but for example,
Various known mechanisms can be employed, including the rotation mechanism disclosed in the above publication.

A cylindrical female fitting part 16a is formed on the lower end surface of the main shaft 11, and a pin-shaped pushing part 16b is formed at the center of the lower end surface of this female fitting part 16a. The female fitting part 16a and the pushing part 16b are connected to the plug 1 which is separate from the main shaft body 11a supported by the cylindrical body 13.
6. Therefore, the main shaft 11 is the main shaft body 11
a and a separate plug 16 which is bolted to the lower end surface of this plug by means of companion flange portions 11b and 16C.

Negative pressure passages 11c and 16d that communicate with each other are formed inside the main shaft body 11a and the plug 16.
The upstream side of the side negative pressure passage 11c is the thrust bearing device 1.
5 via an externally installed negative pressure source (not shown)
It is connected to the.

On the other hand, the downstream side of the negative pressure passage 11c on the side of the plug 16 is located around the pushing part 16b, and is connected to the female fitting part 16 by a plurality of pores 16e formed on the bottom surface of the female fitting part 16a.
a.Communicates with the outside.

A female fitting portion 16a of the plug 16 is slidably fitted into a recess, that is, a female fitting portion 17a, of a grommet support member 17 installed below the plug 16. This recess 1
An opening 17b smaller than the surface area of the upper brim portion 18d of the grommet 18 is formed in the bottom surface of the grommet 7a.
When the female fitting portion 16a of the plug 16 relatively slides within the recess 17a, the push rod 16b moves in and out from b.

This grommet support member 17 is connected to the flange portion 16 of the plug 16 by suspension ports 19 provided at three locations around the periphery.
It is supported by c. A coil spring 20 is arranged around the outer periphery of this suspension bolt 19 between the grommet support member 17 and the plug 16.
A spring force is applied to the plug 7 in the direction of separating it from the plug 16. That is, the grommet support member 17
1 and receives a downward pressing force from the spring 20.

The operation of the anti-slip material attaching device 10 configured as described above will be explained next.

The fixed base 12 supporting the cylindrical body 13 is fixed in the X direction (first
It is placed on an appropriate rail (not shown) so as to be movable in the left-right direction (as viewed in the figure) and the Y direction (front and back directions of the page as viewed in FIG. 1). As a result, the non-slip material mounting device 1
0 is moved to the supply position of the grommet 18, where the main shaft 11 is lowered by the operation of the cylinder device 14, and the lower end surface of the grommet support member 17 is brought into close contact with the surface of the upper brim portion of the grommet 18. The opening 17b is closed by the surface of the brim 18a. During this period, the negative pressure passage 11c passing through the inside of the main shaft body 11a, the negative pressure passage 16d passing through the inside of the plug 16, and the plug 16 are activated by the operation of the negative pressure supply source.
A negative pressure is applied to the inside of the female fitting part 17a of the grommet support member 17 through the pore 16e formed in the bottom surface of the female fitting part 16a. Therefore, the grommet support member 17
Since external air is sucked into the female fitting part 17a through the opening 17b, the grommet 18 is attracted to the lower end surface of the grommet support member 17.

Thereafter, the main shaft 11 is raised by the operation of the cylinder device 14, and the grommet 18 is lifted up as shown in FIG.
Pallet 21, which is a synthetic resin molded product, is entirely moved.
It is positioned directly above the mounting hole 22 of. Next, the cylinder device 14 is operated to lower the grommet support member 17 together with the main shaft 11, and the rotational drive mechanism (not shown) is activated.
Rotate them by Grommet 18 is mounting hole 2
2, when contact resistance between the mounting hole 22 and the grommet 18 begins to occur, the grommet 18
It is pushed in by the pressing force of 0. At the final stage of grommet insertion, when this contact resistance increases further, the grommet is not inserted by the pressing force of the spring 20, that is, the spring force alone, and the grommet support member 17 is pushed back, causing the spring 20 to bend. As a result, only the main shaft 11 descends as a relative movement, and the pushing part 16b provided on the lower end surface comes out from the opening 17b of the grommet support member 17, and the upper collar part 18a of the grommet 18.
It hits the center of the surface and pushes this area intensively in the axial direction. The grommet 18 thus has its upper brim 1
When a concentrated pressing load is applied to the center of the surface of 8a, the outer periphery of the grommet 18 is deformed to shift in the axial direction, and this and the rotation of the grommet 18 combine to ensure that the grommet 18 is inserted into the mounting hole. inserted.

In the above embodiment, the grommet 18 was held on the lower surface of the grommet support member 17 by negative pressure, but the present invention is not limited to this, and the grommet 18 may be fitted and held by press-fitting or the like. Further, although the main shaft 11 is composed of the main shaft main body 11a and a separate plug 16, these may be formed integrally. Furthermore, in the operation of the above-described embodiment, when inserting the grommet 18 into the mounting hole 22 of the pallet 21, the grommet 18 was rotated once by the rotation of the main shaft 11, but this was done in order to obtain even more reliable insertion. It is not necessarily necessary. Therefore, such rotation of the grommet 18 and spraying of a lubricant (for example, water may be used) into the mounting hole of the synthetic resin molded product as described in the prior art section can be performed as appropriate.

(Effects of the Invention) As explained above, according to the anti-slip material attaching device of the present invention, when attaching the anti-slip material to the mounting hole of a synthetic resin molded product, the upper center part is removed from the bottle at the final stage of insertion. By applying a concentrated load to the anti-slip member and pushing it in, it is possible to install the anti-slip material reliably and quickly, and it is possible to provide an anti-slip material mounting device with extremely high reliability.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an anti-slip material attachment device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the anti-slip material attachment device taken along the line ■-■ in FIG. Figure 3 is the first
It is a longitudinal cross-sectional view showing the operation of the anti-slip material attachment device shown in the figure. 2 10... Anti-slip material attachment device, 11... Main shaft, ll
a... Main shaft body, llc... Negative pressure passage, 16...
Plug, 16a...Female fitting part, 16b...Pushing member, 16d...Negative pressure passage, 16e...Small hole, 1
7...Grommet support member, 17a...Female fitting part, 17b...Opening part, 18...Grommet, 18a
... Upper brim, 20... Spring, 21...
Pallet, 22...Mounting hole.

Claims (1)

[Claims] In a non-slip material mounting device that press-fits a non-slip material made of an elastic material with flanges formed at both ends of the body into corresponding mounting holes of a synthetic resin molded product, the main shaft is supported movably in the axial direction; , a pin-shaped pushing part provided on the end face of the main shaft and protruding in the same direction as the longitudinal direction of the main shaft, and a pin-shaped pushing part installed on the end of the main shaft so as to be slidable in the longitudinal direction, and the pushing part is moved in and out. a grommet support member having an opening smaller than the surface of the flanged portion at one end of the anti-slip material; and the grommet support member such that the anti-slip material closes the opening with the surface of the flanged portion at one end thereof. a holding means that secures the anti-slip material to the grommet support member when the grommet support member is in close contact with the grommet support member; and a spring that is disposed between the grommet support member and the main shaft and applies an urging force to the holding portion in a direction away from the main shaft. An anti-slip material mounting device comprising: