JP3312240B2 - Upper and lower spacing adjustment device for the upper mold of the tile press machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting device for finely adjusting a vertical distance between an upper die supported by a ram and a lower die in a tile press forming machine.

[0002]

2. Description of the Related Art In many cases, clay tiles are continuously produced by a mechanical press forming machine such as a cam press or a crank press having a fixed bottom dead center. The lower mold and the upper mold of the tile press molding machine are adjusted for the distance between the two molds according to the wear situation. Of these molds, the fine adjustment of the upper mold attached to the ram must be performed. Thus, the distance between the two types is adjusted.

Therefore, the fine adjustment of the vertical distance of the upper die is conventionally performed by interposing a wedge-shaped distance adjuster having an inclined surface between the ram and the upper die, and inverting the slant surface of the distance adjuster. This is implemented by a device in which another wedge-shaped interval adjuster having an inclined surface in the direction is overlapped, and the vertical position of the upper die is adjusted by adjusting the overlapping position (JP-A-54-76608). Reference).

[0004] As another conventional example, there is a device in which a hydraulic chamber is provided at the upper part of an upper die, and a fine adjustment of a vertical interval of the upper die is performed by controlling a hydraulic pressure through a hydraulic pipe. It is known (see Japanese Patent Publication No. 3-59800).

The former conventional example has an advantage in that the fine adjustment of the vertical distance of the upper die can be performed mechanically and relatively easily by combining two distance adjusting members as adjusting means. However, the inclined surfaces of the wedge-shaped spacing adjusters are in contact with each other while being inclined.

For this reason, when the pressing force at the time of forming the clay tile acts on the inclined surfaces of these space adjusting members, a force acts on these space adjusting members to move away from each other in the horizontal direction. Horizontal force acts on the bolts that fix the ram and the spacing adjuster with the mold, or the adjustment bolt that adjusts the other spacing adjuster by sliding it in the horizontal direction. There is a possibility that these may be damaged, and there is a possibility that the accuracy of the gap adjusting body may be reduced.

The latter conventional example has the advantage that the fine adjustment of the upper mold can be automatically performed by controlling the hydraulic pressure and the air pressure, and that the remote control can be performed during the operation of the press molding machine.

However, since hydraulic and pneumatic piping and pressure control equipment are required, it is inevitable that small press molding machines will be large-scale compared with the press molding machines themselves, and equipment will be required. In addition to the high cost, the small press has a disadvantage in that the space saving advantage of the small press is impaired, and the proportion of running cost is increased.

[0009]

SUMMARY OF THE INVENTION A first object of the present invention is to make it easy to finely adjust the vertical spacing of the upper mold and to reduce the load which tends to be generated by pressure molding. It is an object of the present invention to provide an upper and lower gap adjusting device for an upper die, which is prevented from being generated in a direction other than the direction and has improved durability. A second object is to provide an apparatus for adjusting the distance between the upper and lower dies of a simple structure which can be employed in a small press molding machine. Yet another object is to reduce running costs.

[0010]

Means for Solving the Problems and Functions and Effects
The vertical spacing adjustment device for the upper die of the tile press forming machine described in the above, has an upper die on the ram side, a lower die on the bed side of the press forming machine body, and an upper die between the ram side and the upper die. In a vertical gap adjusting device for an upper die of a tile press forming machine provided with an interval adjusting member for adjusting the vertical interval of the tile, an adjusting member supporting means for supporting the interval adjusting member is provided on the ram, and the interval adjusting member is an adjusting member. An upper mold support provided rotatably with respect to the support means and having a screw portion is provided between the upper mold and the spacing adjuster, and the upper mold is fixed to a lower mold side of the upper mold support. A thread portion corresponding to the thread portion of the upper mold support is provided on the interval adjuster, and the thread portion of the upper mold support and the thread portion of the interval adjuster are screwed together, and the interval adjuster is moved to the upper And provided rotatably with respect to the supporting body.

To explain the function and effect of this apparatus, it is assumed that the horizontal positions of the lower die on the bed and the upper die on the ram side are previously set properly by appropriate means. The screw portion of the upper mold support with the upper mold fixed to the lower mold side is fitted with the screw portion of the gap adjuster, and the upper mold support and the gap adjuster are horizontally rotatable with each other. By lowering the ram to the vicinity of its lower dead center, the upper die support body with the upper die fixed below is lowered toward the lower die on the bed, and the upper die is lightly fitted to the lower die.

Therefore, while maintaining the fitted state of both types,
Even when the gap adjusting body is rotated in the horizontal direction, the upper mold is fitted so that it is not placed on the lower mold. As a result, the upper mold support with the fixed upper mold is rotated by the gap adjusting body. Rotation is regulated without following for operation.

Therefore, since the upper mold support and the gap adjuster are fitted via the screw portion, the upper mold support follows the rotation direction and the amount of rotation of the gap adjuster in the vertical direction. Move to any.

Thus, fine adjustment of the vertical distance between the two dies can be performed while the two dies are lightly fitted and the proper horizontal position is maintained.

According to a second aspect of the present invention, there is provided an apparatus for adjusting a vertical spacing of an upper die of a tile press forming machine, which controls the tightening and loosening of the upper die support and the interval adjusting body. It is characterized in that a tightening means is provided.

Therefore, in addition to the functions and effects of the first aspect of the present invention, the tightening means for controlling the tightening and loosening of the support for the upper die and the gap adjusting member is released to make the upper die loose. After adjusting the distance between them, both can be brought into a tightened state. As a result, the upper mold, the upper mold support, and the spacing adjuster do not rattle during the molding of the clay tile, and the clay tile can be reliably and stably formed.

According to a third aspect of the present invention, the vertical spacing adjusting device for the upper die of the tile press forming machine according to the first or second aspect of the present invention regulates the rotation of the upper die support. It is characterized in that a regulating means is provided.

Therefore, in addition to the functions and effects of the invention described in the first or second aspect, since the regulating means for regulating the rotation of the upper mold support is provided, the vertical movement of the upper mold support is prevented. When adjusting the distance in the direction, the upper mold support does not rotate following the rotation of the ram-side control member. Therefore, it is not necessary to fit the upper die to the lower die before adjusting the distance, so that the operation of adjusting the distance of the upper die can be performed in a shorter time.

[0019]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the vertical gap adjusting device 3 of the upper mold 14.
FIG. 2 is a front view in which a tile press forming machine 10 provided with a mold 4 and a mold carrier 32 are arranged beside the machine, FIG.
FIG. 3 is a front view of a main part of the vertical gap adjusting device 34, FIG. 4 is a side view of FIG. 3, and FIG. 5 is a main view of line AA in FIG. Sectional view of the part, FIG.
FIG. 7 is a sectional view of a main part taken along line BB in FIG. 4, and FIG.
FIG. 4 is a perspective view of a main part of the vertical interval adjusting device 34 of FIG.

The tile press forming machine 10 itself includes a ram 12 for supporting an upper die and a bed 18 for supporting a lower die without any difference from the conventional example.

As is known, the ram 12 is mounted on a guide member 28 erected on the bed 18 so as to be movable up and down.

In order to move the ram 12 up and down, the ram 12 is controlled by a toggle link mechanism 26, which is controlled by a crank mechanism 24 driven by the motor 22. I have.

The crank mechanism 24 is configured so that the rotation of the drive motor 22 is transmitted to a toggle link mechanism 26, and the upper end of the toggle link mechanism 26 has a support member provided above a guide member 28. The lower end is fixed to the ram 12.

Thus, as is known, the driving of the motor 22 operates the crank mechanism 24 and the toggle link mechanism 26, and the ram 12 is guided by the guide member 28 to move up and down, so that the upper die 14 can move up and down. (See FIG. 1).

On the other hand, the lower mold 2 is placed below the ram 12 and the upper mold 14.
A bed 18 is provided to support the molding die 41 (the upper die 14 and the lower die 2) beside the tile press molding machine main body 16.
0) for transporting a movable mold carrier 3
2 are arranged.

The vertical spacing adjusting device 34 of the upper die 14 according to the embodiment of the present invention will be described. The device 34 is mainly provided with a screw around its outer periphery so that it can freely and horizontally rotate with respect to the ram 12. An interval adjusting body 38 having a portion 36 and an upper die support body 42 having an inner periphery with a screw portion 40 screwed to the screw portion 36 of the interval adjusting body 38 are provided.

The thread portion 40 of the spacing adjuster 38 is attached to the thread portion 40 of the upper mold support 42 to which the upper mold 14 is fixed downward.
6 is screwed together, an environment in which the rotation of the upper mold support 42 can be stopped is set, and the space adjuster 38 is turned in the horizontal direction to follow the vertical movement of the space adjuster 38. By moving the upper mold support 42 up and down, the vertical spacing of the upper mold 14 can be adjusted.

The cylindrical spacing adjuster 38 described later is mounted on the ram 1
2 so as to be rotatable with respect to 2,
An adjusting body supporting means 46 comprising an annular body 46a and two L-shaped cross-sections 46b is fixed.

As shown in FIGS. 5 and 6, the adjusting body supporting means 46 has a flange 46d provided on the annular body 46a.
As a result, the gap adjusting member 38 is rotatably supported on the ram 12 side.

Further, a projection 46c is provided on the L-shaped section 46b so that the distance adjusting body 38 can be securely fixed to the ram 12 side by the bolt 45 after a predetermined rotation of the distance adjusting body 38. Is configured.

The adjusting member supporting means 46 is for rotatably supporting the cylindrical spacing adjusting member 38.
The adjusting body supporting means 46 may be constituted only by the annular body 46a provided with the above-mentioned flange 46d, or may be constituted by at least three L-shaped cross-sections 46b without the annular body 46a. . That is, the interval adjusting body 38
Is regulated by the ram 12 and the adjusting body support means 46 with respect to the vertical movement with respect to the ram 12, while the ram 12
Is rotatable in the horizontal direction.

On the other hand, a threaded portion 36 is provided on the outer periphery, and a projection 46 provided on an L-shaped section 46b of the adjusting body supporting means 46 is provided.
There is provided a cylindrical gap adjuster 38 having a flange 48 at the upper peripheral edge for engaging with c.

Further, in order to be able to forcibly rotate the gap adjusting member 38 by using a tool such as a rotating bar, a bar is inserted in the axial direction so that the bar can be inserted. A hole 50 is provided.

Accordingly, the rotating means of the gap adjusting member 38 is constituted by the bar insertion hole 50 and a tool such as a bar (not shown). In the embodiment of the present invention, eight rod insertion holes 50 are provided (in units of 45 degrees).
A space adjuster 38 is provided above the bar insertion hole 50.
The upper mold 14 is rotated by rotating the scale clockwise.
Is set to rise by 2 mm.
The vertical moving distance of the upper mold 14 according to the amount of rotation of the upper die 8 can be grasped.

The upper mold supporting member 42 for fixing the upper mold 14 has a cylindrical portion 42a having a screw portion 40 on the inner periphery corresponding to the screw portion 36 of the above-mentioned gap adjusting member 38, and a cylindrical portion 42a.
Mounting portion 42b and upper die 14 formed in a horizontal direction with respect to
Is fixed to the lower part of the upper die mounting base 42c.

The mounting portion 42b and the upper die mounting base 4
2c is connected via a bolt 43.

The upper die 14 is fixed to an upper die mounting base 42c via bolts 44.

Further, the cylindrical portion 4 of the upper mold support 42 is provided.
2a is provided with a groove 42d in the vertical direction (FIG. 4).
), A pair of protrusions 42e is provided on both sides of the groove 42d of the cylindrical portion 42a, and a bolt 54 is inserted into a bolt hole 52 formed in the protrusion 42e and tightened.
There is provided a tightening means for narrowing the interval between the grooves 42d and fixing or releasing the interval adjuster 38 screwed into the upper support 42 for the upper die.

When the tightening means is released, the gap between the grooves 42d is restored due to the rigidity of the material of the cylindrical portion 42a of the gap adjusting body 38, and the tightened state between the upper mold support 42 and the gap adjusting body 38 is released.

In addition, the upper mold 14 and the upper mold support 4
A rotation shaft 60 is provided between the adjusting body support means 46 such as a fixing ring and the upper mold support body 42 to regulate the rotation of
a is vertically installed.

A sliding shaft 60a is provided between a shaft hole of a sliding shaft supporting member 42f protruding to the side of the upper mold supporting member 42 and a supporting hole 46e provided in the adjusting member supporting means 46. The sliding shaft 60a constitutes the regulating means 60.

The sliding shaft 60a is provided so as to be vertically slidable with respect to the adjusting member supporting means 46,
In addition to restricting the upper mold support body 42 from being rotated by the rotation of the support 8, the upper mold support body 42 is slidable with respect to vertical movement.
Therefore, there is no need to fit the upper mold 14 and the lower mold 20 prior to the work of adjusting the distance between the upper dies 14, so that the work of adjusting the distance can be performed in a shorter time.

[Brief description of the drawings]

FIG. 1 is a front view of a tile press forming machine.

FIG. 2 is a side view of a tile press forming machine.

FIG. 3 is a schematic front view of the upper and lower vertical gap adjusting device according to the embodiment.

FIG. 4 is a schematic side view of an upper and lower vertical gap adjusting device according to the embodiment.

FIG. 5 is a sectional view of a principal part taken along line AA in FIG. 3;

FIG. 6 is a sectional view of a main part taken along line BB in FIG. 4;

FIG. 7 is a fragmentary perspective view of a part of the upper die vertical gap adjusting device according to the embodiment, with a part cut away.

[Explanation of symbols]

 12 Ram 14 Upper die 16 Press molding machine main body 18 Bed 20 Lower die 36 Thread part 38 Interval adjustment body 40 Thread part 42 Upper die support 46 Adjuster support means 60 Regulation means

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-54-78708 (JP, A) JP-A-2-235707 (JP, A) JP-A-54-76608 (JP, A) 59800 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B28B 3/02 B28B 7/00

Claims (3)

(57) [Claims] 1. A roof tile having an upper die on a ram side, a lower die on a bed side of a press molding machine main body, and an interval adjuster between the ram side and the upper die for adjusting a vertical interval of the upper die. In the vertical gap adjusting device of the upper die of the press forming machine, an adjusting body supporting means for supporting the spacing adjusting body is provided on the ram, and the spacing adjusting body is provided rotatably with respect to the adjusting body supporting means. The upper die support is provided between the upper die and the spacing adjuster, and the upper die is fixed to the lower die side of the upper die support, and the screw portion corresponding to the screw portion of the upper die support Are provided on the gap adjuster, and the screw portion of the upper mold support and the thread portion of the gap adjuster are screwed together, and the gap adjuster is provided rotatably with respect to the upper mold support. A vertical gap adjusting device for an upper die of a press forming machine for roof tiles. 2. The vertical space between the upper mold and the upper mold of the tile press forming machine according to claim 1, further comprising a tightening means for controlling the tightening and loosening of the upper mold support and the gap adjusting body. Adjustment device. 3. The vertical gap adjusting device for an upper die of a tile press forming machine according to claim 1, further comprising a restricting means for restricting rotation of the upper die supporting member.