JPH0444598Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is designed to detect defective products that have defects such as bubbles and scratches among the glass sheets that are divided into multiple pieces in the width direction of the transport path during the production line of glass sheets. The present invention relates to a sorting device used when discarding plate glass.

[Prior art]

This sorting device for conveyed sheet glass is equipped with a sorting frame having a width equal to the width of the conveying path, which is installed in the middle of the sheet glass conveying path so that it can swing up and down using the horizontal axis on the upper side of the conveying frame as a fulcrum. Those equipped with a posture switching mechanism that switches the sorting frame body between a conveyance posture and a downwardly tilted sorting posture;
Alternatively, it is known that the sorting frame body is divided into two parts in the width direction of the conveyance path, and a position switching mechanism is provided for switching the two divided sorting frame body bodies into a conveying position and a sorting position, respectively. cannot be shown).

[Problem that the invention attempts to solve]

However, in the case of this conventional sorting device, even if a defect occurs in some of the glass sheets that are divided into multiple pieces in the width direction of the conveyance path, all of these divided glass sheets are discarded. Alternatively, half of the split plate glass must be discarded, resulting in a problem of poor yield.

Therefore, in such a conventional device, a defect is generated only when all the divided glass plates have a defect, or when a defect has occurred in all the divided glass plates located on one half of the conveyance path in the width direction. Therefore, if a defect occurs in a part of the divided glass sheet as mentioned above, a person inspects the divided glass sheet while taking the sheet at the plate sampling section at the end of the conveyance route to identify the defect. Currently, we are sorting out defective products that have occurred and non-defective products.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to reliably discard only the divided glass plates that have defects among the glass plates that are divided into multiple pieces in the width direction of the conveyance path and transported. The purpose of this invention is to provide a sorting device that can perform the following tasks.

[Means for solving problems]

The conveying plate glass sorting device of the present invention includes a plurality of sorting arms that can be vertically swung about the horizontal axis on the upper side of the conveying axis as a fulcrum in the middle of the conveying path of the plate glass, and these sorting arms are arranged in a conveying posture in predetermined units. The present invention is characterized in that it is provided with a posture switching mechanism that switches between a downwardly inclined sorting posture and a sorting posture that is operated separately, and the mounting interval of the sorting arm group is configured to a size that can support plate glass having a minimum dimension width. The effects and effects thereof are as follows.

[Effect]

Even if the divided glass sheets conveyed onto the sorting arm group are of the minimum product size,
Even if the positions of both sides of the divided glass plates vary greatly in the width direction of the conveyance path depending on the product dimensions to be divided, only the divided glass plates with defects are always sorted into multiple pieces or more. It is possible to reliably sort items while stably placing and supporting them on the arm.

[Effect of idea]

Therefore, at any position of the conveyance path width,
Since the divided glass plates can be stably placed and supported by multiple sorting arms, when sorting the divided glass plates that have defects, the divided glass plates tilt left and right around the axis along the sorting arms and are separated from each other. There was no jamming between the sorting arms, and defective products with defects could always be discarded in a stable and reliable manner.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 4 shows an outline of a plate glass production line, and includes a defect detection device S that detects defects such as bubbles and scratches in plate glass G that is formed into a belt shape of a predetermined width and continuously conveyed from a glass melting furnace (not shown); A first cutting device A that forms a cut line a for cutting and separation along the conveyance direction on the glass strip G, and after forming a cut line a in a direction perpendicular to the conveyance direction on the glass strip G, cuts along the cut line. A second cutting device B that cuts and separates the glass, a first sorting device C that discards the defective sheet glass G that has defects based on the defect detection signal of the defect detection device S, and conveys the sheet glass G along the cut line a. Intermediate splitting device D that cuts and separates into multiple pieces in the path width direction, Expansion device E that widens the distance between adjacent divided glass sheets G,
Based on the defect detection signal of the defect detection device S,
A second sorting device F is arranged to discard defective divided glass sheets G that have defects.

The second sorting device F is constructed as follows.

As shown in FIGS. 1 to 3, pillars 2 are erected at a plurality of locations on the base frame 1 at predetermined intervals in the sheet glass transport direction, and one of the pillars 2 is located in the middle in the sheet glass transport direction. A plurality of bearings 3 are attached to the upper end portion at predetermined intervals in the width direction of the conveyance path, and these bearings 3 are attached to the conveyance arm of a plurality of sorting arms 5 each equipped with a plurality of conveyance rollers 4. The side end portions are individually attached to be vertically swingable around six drive shafts in a horizontal position along the width direction of the conveyance path.

Of the sorting arms 5, the attachment interval _l1 between the outermost sorting arm 5 in the width direction of the conveyance path and the adjacent sorting arm 5 is configured to a size that can support the divided plate glass G having the minimum dimension width. death,
In addition, the mounting interval l ₂ of the sorting arm 5 located between the two outermost sorting arms 5 is configured to be smaller than the above-mentioned outermost mounting interval l ₁ The sorting arm 5 and the base frame 1 A sorting arm 5 is provided between the mounting member 7 erected on the
A posture switching mechanism 8 is provided to separately switch between a conveyance posture and a downwardly inclined sorting posture in predetermined units.

This posture switching mechanism 8 connects the sorting arm 5 located at the outermost side in the width direction of the conveyance path and the sorting arm 5 adjacent thereto by a connecting member 8a, and also connects both of the connected sorting arms 5, 5. a first hydraulic cylinder 8b that integrally swings up and down;
A second hydraulic cylinder 8c is provided to independently swing up and down the other sorting arms 5 groups located between the second sorting arms 5 from the outermost side.

In addition, a motor provided on the base frame 1
_M1 and the drive shaft 6 are interlocked by a transmission chain 9, and power is transmitted from the drive shaft 6 to the conveyance rollers 4 of each sorting arm 5.

Therefore, on both outer sides of the transport path width, even if the divided plate glass G has the minimum product size, the divided plate glass G can be stably placed and supported by the two sorting arms 5, 5. It is possible to sort them or to transport them directly to the downstream side.

In addition, in the middle of the conveyance path width, the positions of both sides of the dividing plate glass G are adjusted to the product size to be divided by the five groups of sorting arms configured with an installation interval _{l 2} smaller than the installation interval l 1 at the outermost side. Therefore, even if there are large variations, these divided glass plates G can be sorted while always being reliably placed and supported by the plurality of sorting arms 5, or they can be conveyed as they are to the downstream side of conveyance.

Therefore, the divided glass plates G can be stably placed and supported by the plurality of sorting arms 5 at any position along the conveyance path width, so that when sorting the divided glass plates with defects,
The divided plate glass G does not tilt left and right around the axis along the sorting arm 5 and get stuck between the adjacent sorting arms 5, and defective products with defects can always be discarded in a stable and reliable manner. .

Moreover, since the outermost installation interval l ₁ is configured to a dimension corresponding to the minimum product size sheet glass G, all sorting arms 5 are arranged at the center installation interval l ₂
Compared to the case where the structure has the same dimensions as the above, the number of parts is reduced, and the above-mentioned effects can be achieved while simplifying the structure as a whole.

In addition, H in the figure is a roller conveyor located on both sides of the second sorting device F in the conveyance direction. 10,
Bearings 11 are installed at a plurality of locations spaced apart by a predetermined interval in the glass plate transport direction. A rotating shaft 13 equipped with a plurality of conveying rollers 12 is installed on these bearings 11 at predetermined intervals in the width direction of the conveying path.
A transmission chain 14 is used to interlock the motor _M2 provided in the motor M2.

[Another example]

In the above embodiment, the mounting interval l ₂ of the sorting arm located between the two outermost sorting arms 5, 5
is configured to be smaller than the attachment interval _l1 between the outermost sorting arm 5 and the adjacent sorting arm 5, but even if the installation interval of these 5 groups of sorting arms is configured to be the same, good. In short, the installation interval of the 5 groups of sorting arms is determined depending on the width direction of the conveyance path even if the divided glass sheet G is a sheet glass with the minimum product size, and the position of both sides of the divided glass sheet G depends on the product size to be divided. Even if there is a large fluctuation, only the divided glass plates G that have defects among these divided glass plates G are always placed and supported stably by the plurality of sorting arms 5 at intervals that can be reliably sorted. If so, any mounting interval may be used.

[Brief explanation of the drawing]

The drawings show a conveying sheet glass sorting device according to the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view, and Fig. 3 is a side view.
The figure is a front view, and FIG. 4 is a schematic diagram of the plate glass production line. G... Plate glass, 5... Sorting arm, 8...
Posture switching mechanism, l ₁ , l ₂ ... installation interval.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of sorting arms 5 are provided in the middle of the conveyance path of the plate glass G, which are vertically swingable about the horizontal axis on the upper side of the conveyance, and these sorting arms 5 are conveyed in predetermined units. A posture switching mechanism 8 is provided to switch between the sorting posture and the downwardly inclined sorting posture, and the mounting intervals l ₁ and l ₂ of the five groups of sorting arms are configured to a size that can support the glass plate G having the minimum dimension width. A sorting device for transported plate glass. Of the sorting arms 5, the attachment interval _l2 of the sorting arm located between the two outermost sorting arms 5, 5 is the attachment interval l2 between the outermost sorting arm 5 and the adjacent sorting arm 5. 1. A sorting device for conveying plate glass according to claim ₁ , which is configured to be smaller than 1.