JPS5836431Y2 - Model mounting structure of frameless vertical molding machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a model mounting structure for a frameless vertical molding machine for manufacturing castings.

In the green sand frameless vertical molding machine, as shown in FIGS. 5 to 7, a front model mounting table 1 with a front model 2 attached thereto;
A rear model mount 1' to which a rear model 2' is attached is used.

The front model mounting base 1 has an upper flange 1a and a lower flange 1b on the side opposite to the mounting surface of the front model 2, and the upper and lower flanges 1a and 1b are connected to each other by making holes 3a at the four corners with an appropriate number of tightening bolts 4. It is attached to a front model mount mounting frame 3 having a front model mount.

The upper and lower flanges l'a and l'b of the rear model mount 1' on the opposite side to the rear model 2' mounting surface are attached to the model mount mounting frame 3' with an appropriate number of tightening bolts 4. There is.

Then, with the front model 2 and the rear model 2' facing each other,
A molding chamber 5 is arranged between the two, and tie bars 6 inserted into the four corner holes 3a and 3'a of the front model mount mounting frame 3 and the rear model mount mounting frame 3' are used to connect both mounting frames 3 and 3'. After tightening, molding chamber 5
Green sand is press-fitted and compressed into the mold 7 in the molding chamber 5.
was forming.

Then, a plurality of molds 7 formed as described above are arranged in series (see FIG. 8), and molten metal is poured into the spaces 8 formed between the molds 7 to perform casting.

In order to ensure the quality of the cast material produced in this way, it is necessary to
It was necessary that there be no misalignment between the mold and the post-mold 7b.

For this reason, in the past, the attachment position for attaching the model mount to the model mount attachment frame had to be adjusted.

Conventionally, as shown in FIGS. 5 and 6, an eccentric bushing 31 is used for positioning the front model mount 1 to which the front model 2 is fixed, and the front model is attached to the front model mount mounting frame 3. The position of the stand 1 is determined by fitting the round pin 32 fixed to the front model mount mounting frame 3 with the eccentric bushing 31 built into the front model mount 1, and the front model is mounted on the front model mount mounting frame 3. Fix the position of the stand 1, and attach the front model mount 1 to the front model mount mounting frame 3.
It was installed by tightening it with tightening bolt 4.

When adjusting the position of the front model mount 1 with respect to the front model mount mounting frame 3, remove all the tightening bolts 4 and remove the front model mount 1 from the front model mount mounting frame 3. After removing and rotating the eccentric bushing 31,
Fit the eccentric bushings 31 onto the round pins 32 of both horizontal mounting base mounting frames 3 again, and tighten the front model mounting base 1.
-4 was attached to the front model mount mounting frame 3.

Also, the rear model mounting frame 3' of the rear model mounting base 1'
The adjustment of the mounting position, which will be discussed in Section 2, was also carried out in the same manner as above.

However, the front and
If the positioning of the rear model mounts 1 and 1' is adjusted by rotating the eccentric bushing 31 as described above, it will take a lot of time to adjust and it will be difficult to make fine adjustments (in the X direction in Fig. 6). and Y-direction adjustment cannot be performed independently.

).

In view of the above, the object of this invention is to provide a model mounting structure that allows accurate, simple and quick adjustment of the model mounting position for a frameless vertical molding machine.

Next, this invention will be explained based on the embodiments shown in FIGS. 1 to 4.

In FIGS. 1 to 4, the same components as in FIGS. 5 to 7 are given the same reference numerals.

In the figure, reference numeral 9 denotes a rectangular long bushing, and the two rectangular long bushings 9, 9 are each attached to the front model mount 1 near the location where the conventional eccentric bushing 31 is attached.

These rectangular bushings 9, 9 have rectangular long holes 9a, 9a that are long in the vertical direction (Y direction), and each of the long holes 9a
, 9a are fitted with square pins 10° 10 having a square cross section, which are implanted in the front model mounting frame 3, and each square pin 10 is inserted into the square long bushing 9 into which the square pin 10 is fitted. It is movable only in the Y direction with respect to the elongated hole 9a.

An angled block 11.11 is fixed to the front model mount mounting frame 3 above the front model mount 1, and blocks 11a and lla having the same shape as the block 11 are fixed to the front model mount mounting frame 3 below the front model mount 1. It is fixed to the stand mounting frame 3, and each block 11.11 has a position adjustment pole H2a screwed into it, and each block 11a, 11a also has a position adjustment pole H2a screwed into it.
, 12a are screwed in, respectively.

The position adjustment bolts 12 and 12a have these ports I
-12, 12a are screwed into lock nuts 13 for fixing them to each block 11, 118.

The rear model mount 1' is attached to the square bush 9 of the front model mount 1.
, 9 are attached near the locations corresponding to the locations where the square bushings 14 and 14 are attached.

This rectangular bushing 14 has a rectangular long hole 14a that is long in the lateral direction (X direction), and the long holes 14a, 14a of both rectangular bushings 14.14 are installed in the rear model mounting frame 3'. Square pins 15 and 15 each having a square cross section are fitted into each other, and each square pin 15 is movable only in the X direction relative to the elongated hole 14a of the square bush 14 into which the square pin 15 is fitted. ing.

An angled block 16.16 is fixed to the rear model mount mounting frame 3' on the side of the rear model mount 1', and the block 16.16 has a position adjustment pole) 1
7.17 are screwed into each.

Position adjustment ports l-17, 17 include these ports) 1
Lock nuts (18.18) for fixing 7.17 to each block 16.16 are screwed in.

Next, the operation of this embodiment will be explained.

If there is a misalignment in the Y direction between the front mold 7a and the rear mold 7b formed in the molding chamber 5 by the front model 2 and the rear model 2', tighten all the tightening bolts 4 on the front model mount 1. Relax.

Then, attach the front model mount 1 to the front model mount mounting frame 3.
If it is necessary to lower the front model mount 1, loosen the position adjustment poles 12a and 12a according to the amount by which the front model mount 1 is lowered.

Next, when the position adjustment bolts 12.12 are tightened, the square bushes 9 of the front model mount 1 are guided by the square pins 10 of the front model mount mounting frame 3, and the front model mount 1 moves downward. The lower surface of is brought into contact with the position adjustment poles H2a and 12a and stops.

Therefore, when the lock nuts 13 of the special number position adjustment bolts 12 and 12a are tightened to each block, the position of the front model 2 in the Y direction is adjusted, and the positional deviation in the Y direction with respect to the rear model 2' is adjusted.

In addition, if it is necessary to move the front model 2 upward relative to the rear model 2', use the position adjustment pole (opposite to the above).
2. This is done by loosening 12 and screwing in the position adjustment poles 12a and 12a.

In other words, if there is a positional deviation in the Y direction between the front model 2 and the rear model 2', the position adjustment pole) 12.12 and 12
a, 12 Move the front model mount 1 in the Y direction with respect to the front model mount mounting frame 3 using a, and then move the front model 2
and the rear model 2' are corrected.

When the position adjustment of the front model mount 1 in the Y direction is completed, all the tightening bolts 4 are tightened to fix it to the front model mount mounting frame 3.

Next, if there is a positional shift in the X direction between the front mold 7a and the rear mold 7b formed in the molding chamber 5 by the front model 2 and the rear model 2', all of the rear model mounting bases 1' In the same way as when loosening the tightening bolt 4 and adjusting the position of the front model 2, loosen one position adjustment bolt I.17, screw the other position adjustment bolt 17 into the block 16, and attach the rear model mount. Push 1' in the direction you want it to move.

As a result, the rear model mount 1' moves in the X direction with the square bush 14 being guided by the square pin 15 of the rear model mount mounting frame 3'.

After completing the position adjustment of the rear model mount 1',
Tighten the position adjustment poles l-17 and 17 on both sides with the lock nuts 13.
．． 13 to the block 16.16, all the tightening bolts 5 are tightened to fix the rear model mount 1' to the rear model mount mounting frame 3'.

In the above embodiment, a square bush and a square pin were used as means for regulating the direction of movement of the model mount, and a position adjustment bolt was used as a means for moving the model mount. Of course, the direction regulating means and the moving means are not limited to these.

As mentioned above, this idea is based on a frameless vertical molding machine that has a front model side and a rear model side. The model mounting position can be adjusted by moving the rear model mount in a direction 90 degrees different from the moving direction of the front model mount with respect to the rear model mount mounting frame. Since the time required for the adjustment can be shortened and fine adjustments can be made, highly accurate adjustments can be made.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of this invention. Figure 1 is a side view showing the front model mount attached to the front model mount frame, and Figure 2 is the front view of Figure 1. Figure 3 is a side view showing the rear model mount attached to the rear model mount mounting frame, Figure 4 is a front view of Figure 3, and Figures 5-
Fig. 6 shows a conventional embodiment, Fig. 5 is a side view showing a state in which the front (rear) model mount is attached to the front (rear) model mount mounting frame, and Fig. 6 is a plan view of Fig. 5. 7 is a structural diagram of the main part of a green sand frameless vertical molding machine, and FIG. 8 is a sectional view showing a state in which molding chambers are arranged in series. 1...Front model mount, 1'...Rear model mount, 2...Front model, 2'...Rear model, 3... ...Front model mounting frame, 3'.
...Rear model mounting stand mounting frame.

Claims (1)

[Scope of utility model registration request] Press molding sand into the molding chamber provided between the front model mount mounting frame with the front model mount attached and the rear model mount mounting frame with the rear model mount attached with the rear model. In a frameless vertical molding machine that forms a pair of front mold and rear mold in a molding chamber, the front model mount is placed either horizontally or vertically with respect to the front model mount mounting frame. A model mounting structure characterized in that the rear model mount is movable relative to the rear model mount mounting frame in a direction 90° different from the moving direction of the front model mount.