JPS5864232A - Supporting apparatus for glass plate used in tempering of plate glass - Google Patents

Abstract

PURPOSE:To considerably save heating energy, to make the attachment and detachment of a glass plate easy and efficient, and to provide fine finished appearance to a product by using a frame having many legs of a specified shape uprighted on the upper surface in an equally distributed state so as to support the glass plate to be tempered. CONSTITUTION:Many needle-shaped legs 2 are uprighted on the upper surface of a frame 1 larger than a glass plate P to be tempered at equal intervals so that they are arranged like a checkerboard, and flat heads 2a are attached to the tips of the legs 2. When plate glass is tempered, a glass plate P is mounted on the frame 1 and stably supported by the heads 2a of many legs 2. The plate P is conveyed in a heating furnace as it is, and the plate P is heat treated, taken out of the furnace, and rapidly cooled by spraying air from nozzles 3, 3. The cooled plate P can be detached at once from the frame 1 as a tempered product.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that supports lath sheets, which are used as raw materials, in a state most suitable for the strengthening process when strengthening various types of plate glass, including automobile window glass. be.

As is well known, in order to produce this kind of tempered glass, a sheet of glass that is cut into a predetermined outline is introduced into an electric furnace and heated to approximately 0 to 700 degrees, and then heated with a red-hot wand. A processing method is used in which the koji mold is pulled out of the furnace and quickly cooled by static electricity.

However, in conventional heating furnaces, when conveying the glass plate (P) into and out of the furnace, a guide rail (R) & 4th tA is installed at the upper part of the furnace body (H) to run away from the inside of the furnace to the outside of the furnace. A carrier (T) is mounted so as to be able to run astride this guide rail (T), and an appropriate number of grippers (G) are installed in parallel below the carrier (T), and the grippers (G) By tightening the thumbscrew (G), the glass plate (P) is clamped and suspended from the leg end of the gripper (G), and the glass plate (P) is carried into the furnace by moving the carrier cT'). The paper was then removed from the furnace.

For this reason, a gap must be provided above the opening/closing door of the furnace body to allow the carrier to pass through, and the loss of heat inside the furnace escaping from this area is extremely large. There are disadvantages such as deformation of the rails and impeding the smooth running of the carrier, and in terms of handling, the gripper's thumbscrew must be tightened or loosened each time the glass plate is attached or removed. Not only does it take a lot of time to attach and detach the glass plate, but it also makes the product look bad because it is impossible to avoid the claw marks from the gripper leg end remaining on the top edge of the glass plate after strengthening treatment. There was a turning point.

As a result of intensive research on this point, the inventor fundamentally revised the conventional idea of supporting the glass plate using a hanging method, and established a large number of supporting legs with a unique shape on the top surface in an evenly distributed state. The above 11 points were solved by supporting the glass plate using nine frames.

Hereinafter, the glass plate supporting device according to the present invention will be explained in detail with reference to drawings of embodiments. Fig. 1 shows an example of the most typical implementation structure of the device of the present invention, and shows a glass plate to be strengthened. On the upper surface of the underframe (1), which is larger than the area of (P), a large number of needle-shaped supporting legs (2) are established at equal intervals and arranged in a grid pattern, and each of the supporting legs (2) is It is characterized by having a flattened swollen head (2a) at each tip.

In this case, the enlarged head provided at the tip of each supporting leg (2), 2al
(The spacing (D) between the li-shaped and supporting legs (2) varies depending on conditions such as the area and thickness of the glass plate (P), but the size of the expanded head (2a) is the diameter! ;mmf~/!;
It is difficult to set it to about mmf, and the arrangement of the support leg (2) 1
1 interval), the most appropriate dimension may be selected within the range of about 0mm to /j0mm, but in any case, when the frame (1) is pulled out from the inside of the furnace,
There are empty nozzles (iv) (a) (3) for rapid cooling above and below it.
They are arranged so as to face each other at a distance of about an OI image.

Since the apparatus of the present invention has the above-mentioned structure, when the glass plate (P) as a raw material is placed on the underframe (1) when performing a strengthening process on plate glass, the glass plate (P) will be shaped as shown in FIG. 3. The underframe (1) has support legs (
Since it is stably supported by the expanded head (2a) of 2),
After carrying this into the heating furnace while carrying one button on the underframe (1) and subjecting it to the desired heating process, it is taken out of the heating furnace again and the nozzles tv (3 ) If the empty sword is injected from (3) and the glass plate ('P) is rapidly cooled, the rapidly cooled glass plate (P) will be immediately converted into a reinforced product and the underframe (+
It can be removed from 1.

As shown above, if the device of the present invention is used to strengthen plate glass, there is no need to provide an unnecessary opening gap in the upper part of the furnace body, and the consumption of thermal energy required for heating the glass plate can be greatly reduced. Of course, when attaching, detaching, and transporting glass plates, it is possible to stably place the glass plate on the underframe without having to use grippers to firmly hold the glass plate while suspending and transporting it. Since it can be supported, attachment and detachment operations can be carried out extremely easily and efficiently. In addition, the supporting legs that support the glass plate have flat V-shaped tips and are arranged vertically and evenly distributed over the entire underframe. There is no risk of leaving ugly traces of the supporting legs on the glass plate after strengthening.
It has the advantage of giving the product a beautiful appearance, and together with the simple structure of the device and low equipment cost, it is extremely effective in strengthening plate glass.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the structure of the underframe which is the main body of the device of the present invention, Fig. 2 is a sectional view showing the shape of the nine supporting legs established on the top surface of the underframe, and Fig. 3 shows the state of use of the device. The sectional view and FIG. 3 are perspective views showing a state in which a glass plate is held by a conventional support device. (P)...Glass plate, (G)), Furnace body, (R), Guide rail, (T). Carrier, (G), Gripper, (G1), Thumb screw, (
1), Underframe, (2), Support leg, (,2a), Enlarged head, (3), Nozzle, (1')), Spacing of support legs

Claims (1)

[Claims] On the L side of the underframe, a large number of needle-shaped support legs are arranged at equal intervals (established and arranged in a grid pattern, and aqz is attached to the tip of each support leg.
A glass plate support device used for strengthening plate glass, characterized in that it is provided with a swollen head.