JPS5910092Y2 - Hanging metal fitting positioning device for plate shaped body in curve forming device for plate shaped body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that is assembled into a press device for bending and shaping a plate-like object, and for positioning at an appropriate position a hanging fitting that suspends and supports the plate-like object.

In particular, when pressurizing a heated sheet glass with the concave or convex molds of the press machine to curve or shape it into a predetermined shape, the hanging bracket that suspends and supports the glass sheet must be positioned in order to maintain the appropriate positional relationship between the press mold and the sheet glass. In addition to being able to form a curved shape of sheet glass from the sinus, it is easy to handle and can be performed quickly, and the member for positioning the hanging bracket does not shift after setting, resulting in reliable operation. The present invention relates to a hanging metal fitting positioning device with improved characteristics.

For example, plate glass used as automobile windshields is suspended and supported by hanging metal fittings, heated in a heating furnace above its deformation temperature, and then transported to a press machine where it is pressurized with concave and convex shapes. It is then curved or shaped into a predetermined shape.

When placing a glass plate between the concave and convex molds, it is necessary to align the centers of the glass plate and the press mold in order to accurately bend or shape the glass into the shapes of the press molds, and the glass plate must be suspended. The position of the supported hanger must be corrected to a preferable position relative to the press mold, and while positioning, the plate glass must be pressurized and bent between the concave mold and the convex mold.

In addition to the above, when heat-treating plate glass in a heating furnace before pressing or shaping, the plate glass is not necessarily heated uniformly over the entire surface due to uneven temperature distribution in the furnace, and there is a difference between high-temperature areas and low-temperature areas. There are things you can do.

For example, if a sheet of glass is sent to a press bending or shaping device with one end at a lower temperature than the other end, and the bending is performed, the low temperature part will try to return to its original flat state after the press operation is finished. Due to the generation of restoring force, it is not always possible to curve the glass plate into a predetermined shape.

In this case, the position of the hanging bracket is corrected, the positional relationship between the plate glass and the press die is slightly changed, and the low temperature part is bent or shaped more. , must be positioned in the proper position.

FIGS. 6 and 7 show a conventional device 10 used for this type of positioning work.

In Fig. 6, reference numerals 1 and 2 are a concave mold and a convex mold that are attached to face each other on the front surfaces of a pair of left and right press main bodies 3 and 4 that reciprocate in the horizontal direction, and the concave mold 1 and convex mold 2 A high-temperature plate glass 5 that has been heat-treated is suspended and supported by a hanging fitting 6 in between.

As the concave mold 1 and the convex mold 2 move forward, the plate glass 5 is pressurized and curved or shaped.

The positioning device 10 is attached to the upper part of the convex mold 2, and is one of a plurality of hanging fittings 6 (only one hanging fitting is shown in the drawing, but a plurality of hanging fittings are lined up in the front and back directions of the drawing) supported on the upper end of the plate glass 5. It is provided so as to face a specific object laterally.

The structure of the positioning device 10 is as shown in FIG. 7, with a coupling screw 12. 12 is provided, and is assembled to the convex mold 2 using this screw 12.

Threaded rods 13 are installed across both ends of the support member 11, and a nut 15 integrated with a bifurcated fork member 14 is screwed onto the screw rods 13.

One end of the screw rod 13 is made to protrude from the support member 11, and a thumb screw 16 is provided at this protruding end.

When the thumbscrew 16 is rotated, the threaded rod 13 is rotated, and the fork member 14 is moved from the threaded rod 13 by the feeding action of the threaded rod 13.
It moves in the length direction and changes its position in the front and back directions of the drawing in FIG.

In front of the curved shape of the plate glass 5, this fork member 14
The fork member is used to adjust the position of the glass plate 5 and make the centers of the press die coincide, or to slightly change the position of the glass plate 5 with respect to the press die in order to adjust the center of the glass plate 5 and the press die, or to take into account uneven heating temperature of the plate glass 5. 14 is set, and in this state, the concave mold 1 and the convex mold 2 are advanced in the direction toward each other.

As the convex die 2 moves forward, the hanging fitting 6 is fitted and secured into the recess 14 a of the fork member 14, and the position of the hanging fitting 6 is corrected and positioned by the fork member 14, so that the positional relationship between the press die and the plate glass 5 is appropriate. The plate gas 5 is then bent into an oval shape while maintaining this positional relationship.

In the conventional positioning device 10 having the structure and function described above, after the position of the fork member 14 is determined by rotating the thumbscrew 16, the lock pin 17 is inserted to prevent unexpected movement of the fork member 14. Screw rod 13
rotation of the lock pin 17 must be prevented, and the work of inserting the lock pin 17 is required.

If this insertion work is neglected, the thumbscrew 16 will rotate naturally due to the impact generated by the repeated forward and backward movements of the concave mold 1 and convex mold 2, and the fork member 14 will move due to the rotation of the screw rod 13. Due to the displacement of the fork member 14, it becomes impossible to maintain the proper positioning of the fan fitting 6 and the proper positional relationship between the glass plate 5 and the press die, resulting in defective bending of the glass plate 5 and, in the worst case, cracking of the glass plate 5.

Furthermore, when the press device is installed close to the heating furnace, the position adjustment of the fork member 14 using the thumbscrew 16 must be performed in a working environment that is heated to a high temperature by the heat from the heating furnace. In addition, in order to move the fork member 14 the required distance, the thumbscrew 16 must be rotated for a relatively long time, making the handling operation difficult.
This is both troublesome and troublesome, and there is a need for a device that can easily and quickly adjust the movement of the fork member 14.

The inventor of the present invention has devised the present invention in view of the above-mentioned problems with conventional devices and to effectively solve the problems.

The purpose of the present invention is to allow the fork member to be easily and quickly adjusted without using a rotary operation member such as a thumbscrew, and to guide the movement of the fork member after the fork member is set at a predetermined position. It can be fixed to the guide rod without using a locking pin, etc., reliably prevents the fork member from shifting, and allows for accurate positioning of the hanging bracket. To provide a hanging fixture positioning device capable of maintaining an appropriate positional relationship with respect to a press mold.

In order to achieve the above object, the present invention fixes a guide rod for moving a fork member to a support member attached to either a concave or a convex type, and also attaches a guide rod to the guide rod that can be used both when inactive and when in operation. The fork member is engaged so that its posture can be changed, the fork member can be moved along the guide rod when not in operation, and the fork member can be locked to the guide rod at that position when activated, and the hanging metal fitting can be moved along the guide rod when in operation. It is characterized in that the fork member that fits into the recess in the crotch can be easily operated.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an overall perspective view of a device 20 according to the present invention, in which a support member 21 constituting the main body of the device is formed, for example, by bending both ends of a sheet metal material at right angles in the same direction.
The support member 21 has a U-shape with bent portions 21a, 21a at both ends.

There are two coupling screws 22 on the back side of the support member 21. 22 protrudes rearward, and is attached to the convex die 2 of the press device using the screw 22 in the same manner as in the conventional device.

The press mold to which the device 20 is attached is not limited to the convex mold 2, but may be the concave mold 1.

A moving guide rod 23 is installed horizontally across the bends 21 a, 21 a at both ends of the support member 21, and the installation direction is the front and back directions in FIG.

The movable guide rod 23 is not rotatable relative to the support member 21, but is fixed.

The base of the fork member 24 is engaged with the guide rod 23 so as to be able to change its posture, and in the illustrated example, two nuts 25, 25 are fixed on both sides of the base of the fork member 24,
The fork member 24 is pivotally attached to the guide rod 23 using this nut 25.

FIG. 2 is a partially enlarged view of the movable guide rod 23, and as shown in the figure, a male threaded portion 23a is provided on a part of the outer peripheral surface of the guide rod 23,
This male threaded portion 23a is formed over the entire length of the guide rod 23, and is formed by approximately K-% in the circumferential direction of the guide rod 23.

The guide rod 2 partially provided with the male threaded portion 23a in this way
3 can be easily manufactured by cutting a threaded rod having a male threaded portion on the entire outer peripheral surface, leaving the necessary male threaded portion.

FIG. 3 is an enlarged view of the nut 25 that ensures the raising and lowering movement of the fork member 24 with respect to the moving guide rod 23. The nut 25 has a female threaded portion 25a in its inner diameter hole, and a part of the inner diameter hole A cutout portion 25b is provided in which the female screw portion 25a does not exist.

Such a nut 25 can also be easily manufactured by machining the arrow portion 25b on an existing nut.

The width of the notch 25b in the circumferential direction is made larger than the width of the male threaded portion 23a provided on the moving guide rod 23.

When fixing the nut 25 to the base of the fork member 24, as shown in FIG. , the male threaded part 23a is the missing part 25b
The guide rod 23 and the nut 25 are housed inside the guide rod 23 and the nut 25.
Make sure that they do not mesh.

The bending structure is such that when the fork member 24 is raised, the guide rod 23
This is to ensure the slidability of the fork member 24 against the guide rod 23, and the fork member 24 is pivotally attached to the guide rod 23 so that it can be raised and lowered freely.
In order to be able to move freely along line 3, the fork member 24 is not limited to this embodiment. Part 25
The female thread 25a may be shaped like
It is possible to assemble the fork member 24 to the guide rod 23 with any structure without using existing nuts.

In FIG. 1, reference numeral 26 is a stopper rod for regulating the angle of inclination of the fork member 24 and keeping the fork member 24 in a horizontal state.
It is installed parallel to the movement guide rod 23 between a.

Next, we will discuss handling operations.

When the fork member 24 is not in operation, before pressing or shaping a glass plate, the fork member 24 is moved along the moving guide rod 23, and the fork member 24 is set at a predetermined position.

As a result, when the glass plate is curved or shaped by the press device, as one of the press molds to which the positioning device 20 is attached moves forward, the hanging fitting is moved to the recess 24 a between the forks of the fork member 24.
and correct the position of the hanging fittings to obtain the proper positional relationship between the plate glass and the press mold.

In order to move the fork member 24 along the guide rod 23, the fork member 24 is raised as shown in FIG. The female threaded portion 25a of the nut 25 does not mesh with the male threaded portion 23a of the guide rod 23, and the fork member 24 can be moved in the length direction of the guide rod 23 without any trouble.

After moving the fork member 24 to a predetermined position, the fork member 24 is brought down as shown in FIG.
, and keep it in a horizontal state.

The system for pressing and shaping plate glass was established.
The fork member 24 is in the operating position and thereafter drives the press device.

When the fork member 24 is changed from the upright position shown in FIG. 4 to the fallen position shown in FIG. The female threaded portion 25a of the nut 25 meshes with the male threaded portion 23a of the guide rod 23.

Since the guide rod 23 is fixed and integrated with the support member 21 and cannot rotate, the fork member 24 after being knocked down
cannot move in the length direction of the guide rod 23, that is, it is in a locked state except in the raising direction, and the fork member 24 will not be displaced during pressing or shaping of sheet glass.

Fork member 24 to another. If you want to reset it to the correct position, you just need to stand it up again, and after adjusting the movement, you can put it down and it will be in the locked state again.

In the above embodiments, the plate-shaped body is a plate glass, but the plate-shaped body may be not only a plate glass but also any other material that can be pressed or shaped using a hanger.

Further, the mechanism for making the fork member movable along the guide rod when not in operation and locking the fork member in that position during press operation by changing its posture is not limited to the above-mentioned male screw or female screw.

As is clear from the above description, according to the present invention, the fork member can be manually moved to a predetermined position along the guide rod easily and quickly, and the movement adjustment operation of the fork member can be performed with less tediousness than with conventional devices. It can be done in a short amount of time, making handling operations easier and faster.

In addition, when the posture of the fork member is changed, the fork member cannot move relative to the guide rod, and the fork member can be fixed automatically without using a locking means such as a locking pin. Even when driven, the impact will not cause the fork part to shift position.
You can reliably expect the positioning effect of the hanging metal fittings,
It exhibits various features such as being able to maintain the proper positional relationship between the plate-shaped body and the press die, and is highly practical.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of the entire device, FIG. 2 is an enlarged view of a moving guide rod, and FIG. 3 is an enlarged view of a nut with a female thread. Fig. 4 is a sectional view of the guide rod portion when the fork member is upright, Fig. 5 is a view similar to Fig. 4 when the fork member is fallen down, and Fig. 6 is a front view of the curved rod-shaped device showing the installed state of the positioning device. FIG. 7 is a diagram similar to FIG. 1 showing a conventional example. In the drawings, 1 is a concave type, 2 is a convex type, 5 is a plate glass, 6 is a hanging metal fitting, 21 is a support member, 23 is a movement guide rod, 23 a
24 is a fork member, and 25a is a female thread.

Claims (1)

[Scope of utility model registration request] A guide rod is fixed at a predetermined position for bending or shaping a plate-like object suspended and supported by a hanging metal fitting, and a fork member that engages with the hanging metal fitting to position it is raised and lowered on the guide rod. the fork member is movable along the guide rod in a first posture position where the fork member is disengaged from the hanging fitting;
A device for positioning a hanging metal fitting of a plate-shaped body in a device for bending or shaping a plate-shaped body, characterized in that the device is configured to be fixed with respect to the axial direction of the guide rod in the second attitude position where it engages with the hanging metal fitting.