JPS6055299B2 - Simple attachment/detachment device for brackets in foam molding machines - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a simple attachment/detachment device for a feeder, etc. in a foam molding machine, which allows a bracket for a raw material filling feeder, eject pin, etc. to be easily attached/detached to the back plate side of the foam molding machine. .

In a conventional foam molding machine, two to three bolts 4, 4' are used to attach the raw material filling feeder 1, eject pin 2, etc. to the back plate 3 side of the foam molding machine, as shown in FIG. Each bracket 10, 2
This is done by screwing in via the mounting flanges 11 and 21 of 0.

The disadvantage of this conventional method of installation is that since it is a screw-in type, all the bolts must be tightened and tightened one by one, and it takes a long time to install and remove. Foam molding machines that produce a large number of molded products require the attachment and detachment of many mounting flanges, and even more efficient attachment and detachment is required. According to the present invention, it is an object of the present invention to obtain a device which eliminates the above-mentioned conventional drawbacks and inconveniences and allows the feeder etc. to be attached and detached extremely easily. A mounting member with a mounting hole for a bracket on a feeder, ejector bin, etc. is attached to the back plate of the foam molding machine, and the mounting member is provided with a guide hole that communicates with the outer circumference in a radial direction from the mounting hole. A small hole is formed from the top surface of the mounting member that communicates with the guide hole, and a pin provided to move in and out of this small hole is used to push the ball toward the mounting hole so that it cannot be pulled out. The bracket can protrude into the mounting hole, and the insertion part of the bracket has a recess into which the protruding part of the sphere can fit.

Next, embodiments of the present invention will be illustrated below with reference to FIG. 2 and subsequent figures.

The embodiment shown in FIGS. 2 to 4 is a feeder 1 for filling raw materials.
This is when installing the bolt 4 on the back plate 3.
The mounting member 5 mounted at is provided with a mounting hole 50 into which the insertion portion 12 of the bracket 10 of the feeder 1 is inserted.

A guide hole 51 that communicates with the outer circumference of the mounting member 5 in the radial direction from the mounting hole 50 is provided, and a sphere 6 made of a steel ball or the like is movably inserted into the guide hole 51. In order to prevent the sphere 6 from slipping out from the opening on the side of the hole 50, the opening 54 is formed narrower than the outer diameter of the sphere 6.
It is designed so that it can be locked. Next, a small hole 52 communicating with the guide hole 51 is drilled from the top surface of the mounting member, and this small hole 5
By preparing a pin 7 that can be freely moved in and out of the inside of the guide hole 51 and inserting the pin 7 into the guide hole 51 from the small hole 52, the sphere 6 in the guide hole 51 is pushed toward the mounting hole 50 side, and the sphere 6 is removed.
60 is formed so that it can be fixed while protruding into the mounting hole 50.

The tip of the pin 7 is formed into a tapered or arcuate shape,
When the tip comes into contact with the sphere 6, the sphere 6 can be moved smoothly. Furthermore, by attaching a connecting member 70 such as a chain to the head of the pin 7 and connecting the other end of the chain 70 to the bracket 10, the pin 7 is prevented from being lost. Also, the entire pin 7! If a part of is made of a magnet and the mounting member 5 is made of a magnetized material such as iron, then after inserting the pin 7 into the small hole 52,
This is a suitable implementation because the pin 7 will not come off even when external forces such as vibrations are applied. Furthermore, in order to prevent the pin 7 from coming off, in addition to the above, the pin 7 and the small hole 52 of the mounting member 5 should be It is also possible to cut a thread and insert the pin 7 into the small hole 52 by screwing it. Further, the outer peripheral side of the mounting member of the guide hole 51 is closed with a closing member 53 such as a set screw to determine the position when the sphere 6 is retreated into the guide hole 51. Therefore, it is desirable that the tip of the closing member 53 be as close as possible to the position where it contacts the pin 7 inserted into the small hole 52 so that the pin 7 can always be inserted at the rear position of the sphere 6. On the other hand, the insertion part 12 of the bracket 10 to be inserted into the mounting hole 50 of the mounting member 5 has a recess 13 formed so that it can fit with the protrusion 60 of the sphere 6 when the insertion part 12 is inserted into the mounting hole 50.
is provided, and the bracket 10 can be fixed to the mounting member 5 by fitting the recess 13 and the protrusion 60.

The shape of the recess 13 may be a spherical shape that can fit tightly into the protrusion 60 of the sphere 6, or a conical or evenly protruding protrusion 60.
It is desirable that the bracket has a shape that does not cause any looseness when it is fitted with the bracket.
It can be fitted to the protrusion 60 at any position in the circumferential direction, and the mounting direction of the feeder 1 is not limited, making it easier to connect air piping to the feeder 1. To attach the bracket 10 described above to the mounting member 5, first remove the pin 7 from the small hole 52 of the mounting member 5, and then insert the ball 6 into the guide hole 5.
2 and the protruding part 60 does not come out into the mounting hole 50.
Insert into.

When completely inserted, the recess 13 formed in the insertion part 12 will be inserted into the sphere 6.
When the pin 7 is inserted into the small hole 52 of the mounting member 5 to push the sphere 6 toward the mounting hole 50, the projection 60 of the sphere 6 is fitted into the recess 13. By doing so, the bracket 10 is fixed to the mounting member 5. The protrusion 60 of the sphere 6 fitted into the recess 13 will not return to the guide hole 51 unless the pin 7 is removed, and the bracket 10 will not be removed from the mounting member 5 due to vibration or other external force. . When removing the bracket 10 from the mounting member 5, pull out the pin 7 from the small hole 52 and then pull out the insertion part 12 of the bracket 10 upward from the mounting hole 50.
The sphere 6 moves into the guide hole 52 and forms the protrusion 60 and the recess 1.
3 is released, and the bracket 10 can be smoothly pulled out from the mounting member 5. The above-mentioned fitting mechanism consisting of the sphere 6 and the recess 13 can be formed at only one place around the bracket 10 and the mounting member 5, or it can be formed at multiple places, for more secure mounting and fixing. This makes it suitable.

In addition to the flange shape described above, the mounting member 5 may have a flange-like portion and a sleeve-like portion. Although the above-described simple attachment/detachment device is for the raw material filling feeder 1, it can be implemented in exactly the same manner for attachment/detachment of the bracket 20 of the eject pin 2.
That is, as shown in FIG. 5, the structure of the mounting member 5, guide hole 51, etc. is the same as that for the feeder 1, and the insertion portion 22 of the bracket 20 of the eject pin 2 is inserted into the mounting hole 50 of the mounting member 5. Then, by inserting the pin 7 into the small hole 52 of the mounting member 5 and fitting the protrusion 60 of the sphere 6 into the recess 13 formed in the bracket 20, the bracket 20 and the mounting member 5 can be fixed.

Note that 25 is a spring for retracting the eject pin 2, 26 is a spring retaining washer, and 27 is a nut for holding these.

In addition, although the feeder 1 or the eject pin 2 described above are both installed in the vertical direction, depending on the structure of the foam molding machine, they may be installed in the horizontal direction.
Even in this case, the above-mentioned attachment/detachment device can be used without any problem.

According to the present invention configured as described above, brackets in a foam molding machine, such as a bracket for a raw material filling feeder or an eject pin, can be attached and detached with one touch by the combination of the protrusion of the sphere and the recess on the bracket side. This makes attachment and detachment much easier than in the case of conventional bolt fastening, and the time required for attachment and detachment work can be significantly shortened.

In particular, this method is more effective in a foam molding machine for producing a large number of foam molded products because the number of feeders and eject pins is increased. Therefore, it exhibits very excellent effects when assembling and disassembling the foam molding machine.

[Brief explanation of drawings]

The figures illustrate embodiments of the present invention, and FIG. 1 is a sectional view showing an outline of a conventional foam molding machine, FIG. 2 is a sectional view of the device according to the invention before pin insertion, and FIG. The previous figure is an enlarged sectional view of the main part, FIG. 4 is a sectional view after the pin is inserted, and FIG. 5 is a sectional view showing the implementation of the bracket for the eject pin. 1... Feeder, 10, 20... Bracket, 12, 22... Insertion part, 13, 23
・・・・・・Recess, 2・・・Eject pin, 3
......Back plate, 5...Mounting member, 50...Mounting hole, 51...J guide hole, 52...Small hole, 6... Sphere, 60
...Protrusion, 7...Zen.

Claims (1)

[Scope of Claims] 1. A mounting member in which a mounting hole is formed for a bracket included in a raw material filling feeder, eject pin, etc. for a foam molding machine is attached to a back plate of a foam molding machine, and the mounting member has an outer periphery larger than the mounting hole. A guide hole leading to the guide hole is provided, a sphere is inserted into the guide hole so that it cannot be pulled out, and a small hole is formed from the top surface of the mounting member to the guide hole, and a pin provided to freely move in and out of this small hole is used. A foam molding characterized in that the sphere can be pushed toward the mounting hole so that a part of the sphere can protrude into the mounting hole, and the insertion part of the bracket is formed with a recess into which the protruding part of the sphere can be fitted. Simple attachment/detachment device for brackets on machines. 2. The recess that can be fitted with the protrusion of the sphere in the insertion part of the bracket is formed in a part of the periphery of the insertion part. Detachment device. 3. Simplification of the brackets in the foam molding machine as set forth in claim 1 above, in which the recess in the insertion portion of the bracket that can be fitted with the protruding portion of the sphere is formed around the entire circumference of the insertion portion. Detachment device. 4. A simple attachment/detachment device for brackets in a foam molding machine according to claim 1, wherein at least a portion of the pin is made of a magnet, and the flange is made of a magnetizable material. 5. A simple attachment/detachment device for brackets in a foam molding machine according to claim 1, wherein the pin is connected to the bracket by a connecting member such as a chain.