JP2001159464A - Rubber ring mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubber ring mounting device, capable of reliably mounting a rubber ring in the specified position on the outer periphery of a pipe by a simple device structure. SOLUTION: This rubber ring mounting device is provided with a pair of rubber ring pinching members 13 having opening parts, through which a pipe can be inserted, and rubber ring extending members 14 for extending a rubber ring 11. The rubber ring extending members 14 can be moved to a contracted state, in which the rubber ring 11 in the natural state can be inserted and a extended state for extending the rubber ring 11 to the diameter larger than tat of the opening part of the rubber ring pinching member 13, and they are provided retractably in the opening parts. The rubber ring pinching members 13 are provided with extending member advancing grooves on the opening part peripheral edges and are formed so as to be moved to the approached positions for pinching the extended rubber ring and the separated positions for releasing the rubber ring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rubber ring mounting device, and more particularly, to a device for automatically mounting a rubber ring on a rubber ring mounting portion provided on the outer periphery of a pipe.

[0002]

2. Description of the Related Art For example, the work of mounting a rubber ring between ribs of a rib pipe having a rib formed on the outer periphery largely depends on manual work, and the device for mounting the rubber ring has a structure. However, there are inconveniences such as the fact that it is complicated and that the attached rubber ring is twisted.

Accordingly, an object of the present invention is to provide a rubber ring mounting device which can securely mount a rubber ring at a predetermined position on the outer periphery of a pipe with a simple device configuration.

[0004]

Means for Solving the Problems To achieve the above object, a rubber ring mounting device of the present invention is a device for mounting a rubber ring on a rubber ring mounting portion provided on the outer periphery of a pipe. A pair of rubber ring sandwiching members having an opening through which the rubber ring mounting portion can be inserted, and a plurality of rubber ring expanding members for expanding the diameter of the rubber ring, wherein the rubber ring expanding member is in a natural state. The rubber ring is radially movable between a reduced diameter state in which the rubber ring can be extrapolated and a diameter-expanded state in which the extrapolated rubber ring is enlarged to a diameter larger than the opening of the rubber ring holding member, and The rubber ring holding member is provided in the opening of the holding member so as to be able to advance and retreat, and the rubber ring holding member has a diameter-enlarging member entrance groove in which the rubber ring expanding member in the expanded state can enter at the periphery of the opening, and has a rubber ring expanding member. Move to the close position to hold the rubber ring expanded by the member and the separated position to release It is characterized by being able to form.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 8 are schematic explanatory views showing a step-by-step procedure for mounting a rubber ring on the outer periphery of a rib pipe using a rubber ring mounting device of the present invention.

First, the front view shown in FIG. 1 and the sectional side view shown in FIG. 2 show a first stage for mounting the rubber ring 11 on the rib pipe 10. The rubber ring mounting device according to the present embodiment includes a pair of rubber ring holding members 13 and 13 having an opening 12 through which the rib pipe 10 can be inserted, and six rubber ring expanding members for expanding the diameter of the rubber ring 11. And a drive unit 16 including a guide member 15 for supporting the rib pipes movably in the axial direction of the rib pipe 10 and a hydraulic cylinder for driving.

The opening 1 of the rubber ring holding member 13
2 is provided with a diameter-enlarging member entry groove 17 into which the rubber-ring expanding member 14 can enter, corresponding to each rubber-ring expanding member 14. The rubber-ring expanding member 14 is shown in FIG. As shown,
In the reduced state in which the rubber ring 11 in the natural state can be extrapolated, and as shown in the cross-sectional view of FIG. 5, the extrapolated rubber ring 11 is expanded to a diameter larger than the opening 12 of the rubber ring clamping member 13. It is formed so as to be able to move radially when the diameter is increased.

The first stage is a stage in which the rubber ring 11 is extrapolated to the rubber ring expanding member 14, and as shown in FIG. This is a stage in which the ring expanding member 14 is set in a reduced diameter state, and the rubber ring 11 in a natural state is extrapolated to the outer periphery of the six rubber ring expanding members 14. The extrapolation of the rubber ring 11 to the rubber ring expanding member 14 may be performed manually by an operator, or can be automatically performed by a device such as a rubber ring stock device or a rubber ring supply device. It is sufficient to extrapolate the rubber ring 11 in a natural state, and a force for expanding the diameter of the rubber ring 11 is not required. Therefore, both manual operation and automatic extrapolation by a device can be performed very easily.

In the second stage, as shown in the front view of FIG. 3, the rubber ring 11 externally inserted into the rubber ring enlarging member 14 is positioned so as to be located between the rubber ring holding members 13. This is a stage in which the wheel expanding member 14 is advanced. In this state, FIG.
As shown in the figure, since the rubber ring expanding member 14 is in a reduced diameter state, the rubber ring expanding member 14 passes through the opening 12 of the rubber ring holding member 13 with the rubber ring 11 extrapolated. can do.

The rubber ring 11 extrapolated to the rubber ring expanding member 14
When the rubber ring reaches a predetermined position, as shown in the front view of FIG. 4 and the sectional view of FIG. 5, the rubber ring expanding member 14 is radially moved to the expanded state, and each rubber ring expanding member 14 is opened. A third step is performed in which the rubber ring 11 is made to enter the diameter-enlarging member entrance groove 17 provided on the peripheral edge, and the diameter of the rubber ring 11 is increased to be larger than the diameter of the opening 12.

In the fourth stage, as shown in the front view of FIG. 6, the rubber ring holding member 13 is moved to a position where the rubber ring 11 is sandwiched, and the rubber ring 11 is held between the rubber ring holding members 13. . In the operation stage of expanding and holding the rubber ring 11, the rubber ring 11 in the natural state is expanded without difficulty by the rubber ring expanding member 14 which opens radially, and the rubber ring 11 is simply sandwiched by the rubber ring holding member 13. Therefore, the rubber ring 11 is not twisted.

In the state shown in FIG. 6, the rubber ring holding member 1
Rib pipe 1 for mounting rubber ring 11 in opening 12
0 is inserted to a predetermined position, and the rubber ring mounting portion on the outer periphery of the rib pipe is positioned on the inner peripheral side of the rubber ring 11 held between the rubber ring holding members 13.

In the next fifth stage, as shown in the partial cross-sectional front view of FIG. The rubber ring holding member 13 is retracted so as to be pulled out from the inside.
, The rubber ring 11 is reduced in diameter toward the rubber ring mounting portion of the rib pipe 10 by the elastic restoring force of the rubber ring 11 itself. As a result, the rubber ring 11 is mounted in a predetermined state on the predetermined rubber ring mounting portion of the rib pipe 10. At this time, since the rubber ring 11 is sandwiched between the rubber ring sandwiching members 13, even if friction occurs due to the pulling movement of the rubber ring expanding member 14, the rubber ring 11 is not twisted, and is in a natural state. , The rubber ring 11 can be mounted.

In the final sixth stage, as shown in the front view of FIG. 8, the rib pipe 10 on which the rubber ring 11 is mounted is pulled out from the opening 12 of the rubber ring holding member 13, and the rubber ring expanding member 14 is contracted. By returning to the diameter state, it returns to the state of the first first stage.

As described above, the rubber ring 11 in the natural state is extrapolated to the rubber ring expanding member 14 in the reduced diameter state, and the rubber ring expanding member 1 is
4 is inserted into the opening 12 of the rubber ring holding member 13, and the diameter of the rubber ring expanding member 14 is expanded to expand the diameter of the rubber ring 11.
After inserting the rubber ring 11 into the predetermined rubber ring mounting portion on the outer periphery of the pipe by inserting the pipe into the opening 12 to pull out the rubber ring expanding member 14 and opening the rubber ring holding member 13 can do.

As described above, by automatically extrapolating the rubber ring 11 to the rubber ring expanding member 14 in the first step, the other steps are simply performed in the radial and axial directions. Since it can be easily automated simply by moving the rubber ring, the rubber ring mounting process can be completely automated. In addition,
The opening and closing of the rubber ring sandwiching member 13 and the expansion and contraction of the rubber ring expanding member 14 can be performed by appropriately selecting a known method by using hydraulic pressure or the like. Detailed description is omitted.

Further, the number of rubber ring expanding members 14 to be installed is:
It can be arbitrarily selected according to the pipe diameter, etc.
An arc-shaped rubber ring holding member for holding the rubber ring 11 may be provided on the outer peripheral portion of the rubber ring enlarged member.

[0018]

As described above, according to the rubber ring mounting device of the present invention, the rubber ring can be automatically mounted in a natural state on the rubber ring mounting portion such as the outer periphery of the rib pipe, and the rubber ring mounting can be performed. The working efficiency of the process can be greatly improved. In addition, it is possible to cope with mounting rubber rings on various pipes.

[Brief description of the drawings]

FIG. 1 is a front view of a rubber ring mounting device showing a first stage for mounting a rubber ring.

FIG. 2 is a sectional side view of the same.

FIG. 3 is a front view showing a state in which a rubber ring expanding member is advanced toward a rubber ring holding member.

FIG. 4 is a front view showing a state where the diameter of the rubber ring expanding member is expanded.

FIG. 5 is a sectional side view of the same.

FIG. 6 is a front view showing a state in which the rubber ring whose diameter has been expanded is held by a rubber ring holding member.

FIG. 7 is a front view showing a state in which a rubber ring is attached to a predetermined position of a rib pipe.

FIG. 8 is a front view showing a state in which the mounting of the rubber ring has been completed.

[Explanation of symbols]

10 Rib pipe, 11 Rubber ring, 12 Opening, 13
... Rubber ring sandwiching member, 14 ... Rubber ring expanding member, 15 ... Guide member, 16 ... Drive section, 17 ... Diameter expanding member entry groove

Claims (1)

[Claims] 1. A device for mounting a rubber ring on a rubber ring mounting portion provided on the outer periphery of a pipe, comprising: a pair of rubber ring holding members having an opening through which the rubber ring mounting portion of the pipe can be inserted; A plurality of rubber ring expanding members for expanding the diameter of the rubber ring, the rubber ring expanding member having a reduced diameter state in which the natural rubber ring can be extrapolated, and The rubber ring clamping member is provided so as to be radially movable to an expanded state in which the diameter is increased to be equal to or greater than the opening of the rubber ring clamping member, and is provided so as to be able to advance and retreat within the opening of the rubber ring clamping member. The peripheral portion has a diameter-enlarging member entrance groove in which the rubber-diameter expanding member in the diameter-expanded state can enter, and has a separated position for holding the rubber ring expanded by the rubber-ring expanding member in a proximity position and a separated position for releasing. A rubber ring mounting device, which is formed so as to be movable.