JPH0475761A - Casting product having information mark - Google Patents

Abstract

PURPOSE:To automatically execute necessary machining corresponding to inherent information by casting informations by casting information marks providing the inherent processing information on the surface of a casting product and forming this mark with plural lines of linear information projections differing in lengths and positions. CONSTITUTION:The casting product A is integrally arranged with the information marks corresponding to the inherent informations in each casting product on the surface. At the step of as-cast product, this is shifted on the carrying conveyor 10 and the information in the information marks C are read with a mark reading device 11. The read information is inputted to a control unit S as the signal and the machining work after that can be executed with a driving signal from the control unit. By this method, even if the outside shape is the same, plural as-cast products differing in the other inherent information can be surely and accurately specified with the information marks, and after that, by using the automatic machining controlled with the control unit, the necessary machining corresponding to the inherent information can be automatically executed.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a cast product having an information mark on its surface.

(B) Prior Art For example, FIG. 16 shows the manufacturing process of a cast iron bathtub, which is one of the cast iron products, and the manufacturing process essentially consists of a casting process 100 and a finishing process 101. , an enamel firing process 102 , and an assembly process 103 .

In the casting process, first, the upper frame of the upper mold of the same shape as the casting base is attached, and then the upper mold is created by filling with sand and extracting air from the air outlet of the upper frame. By separating the mold from the -L mold, the upper mold can be manufactured. The lower mold can be made in a similar manner. Next C1 [Assemble the lower mold to form a casting space δ between the molding surfaces of both molds, pour the molten metal into the casting space, and after slow cooling, mold the cast material.

In addition, (+J second process 101 includes, as shown in No. 17l6), a process 110 for removing blasting and foreign matter, a T culm 111 for processing holes such as hand grip mounting holes and heaton holes, and a casting base product. The casting process consists of a step 112 of polishing the outer surface of the cast iron to remove burrs, and a step 113 of polishing the inner surface of the cast material.

Furthermore, before proceeding to the step of machining the mounting holes, etc. of the second hand l'grim, a shape measuring device with a limiter (installed at the tip of the detection 5 flame of the 2,000-sui, etc.) is used to The total length, width, and height of the product are measured (114), and based on the measured values, the casting material corresponding to the measured values is identified, and after that, the hand grip is removed using the NC$lJ processing machine. A-1 hole and H-1 hole are drilled at desired positions (115).

(c) Problems to be solved by the invention However, due to the diversification of consumer tastes in recent years, there is a demand for diversification of products. Even if it is a product, the positions of the holes such as the hand grip attachment hole and the peaton hole may be different, or hole processing may not be necessary.

However, with the conventional shape measuring device mentioned in 7 above, it is not possible to identify finely divided castings as long as the castings have the same shape. It was impossible to drill holes in cast metal products.

Therefore, even if the shape is the same, the handle grip mounting TL
It is difficult to manufacture various types of cast metal products with the positions of holes and heat holes placed on an automatic manufacturing tool, which deteriorates manufacturing efficiency.

An object of the present invention is to provide a cast product having a novel information mark that can solve the above problems.

(d) Means for Solving the Problems The present invention involves casting an information mark with unique processing information on the surface of a cast product, and converting the mark into multiple rows of linear information regarding the length, position, and length. This invention relates to a cast product having an information mark formed from a protrusion and characterized by a hole.

The present invention is also characterized by a structure in which each row of information protrusions is formed by dividing a linear protrusion having a constant length into a plurality of pieces, each of which has a different number and position.

(e) Functions and Effects: By virtue of the configuration described above, the present invention provides the following functions and effects.

■The cast l871 product according to the present invention has a surface ζ:
Each casting ¥! Q: You have physically established an information matrix that corresponds to product-specific information. Therefore, for example, at the stage of producing a casting blank, the casting blank is moved on a conveyor conveyor, the information on the information mark is read by a mark reading device installed on the conveyor, and the read information is transmitted as a signal (7 Te control ii
x! , Z input, and subsequent T work etc. can be performed by the drive IJJ signal from the control device. Therefore, for example, even if the shape of the 1st shape is the same, other unique information may be different. It is possible to reliably and accurately identify a large number of casting blanks with information marks, and then perform necessary processing corresponding to the specific information, for example, casting blank A, using a mortar 1j machining machine controlled by a control device. The holes for attaching the pan 1' and the heaton holes to the pan 1' can be drilled automatically.

■Also, at the stage of casting products, inventory management etc. can be carried out smoothly based on the open information mark.

■ Furthermore, each information protrusion is divided into a plurality of linear protrusions with a certain length υI, and the position and number of the grains in each row are different, so that each information content is W. Various types of information protrusions can be used. Furthermore, by arbitrarily selecting the protrusion forms of these various types of information protrusions for each column, and combining them with similar information protrusions in other columns, an extremely large amount of unique information can be included in the information mask. Based on this information, a wide variety of post-processing processes, including those mentioned above, can be performed.
be able to.

(f) Example The present invention will be explained in detail below based on the example shown in Figure 1.

[Description 1 of production line for producing cast metal blanks Fig. 1 shows a production line B that performs a finishing process for cast metal blanks A according to the present invention.

As shown in the figure, the conveyor container hair 10-L has a bottom surface -
A casting material A is placed on the L side, and the casting material A is placed on the transport conveyor 10 at an interval of 3 in the transport direction.
A unique information reading device 11, a handgrip hole processing device P, and a Heaton hole processing device Q! They will be transferred in this order.

(As shown in Figures 2 and 3), the bottom surface 13 of the cast material A being conveyed through the production line B mentioned above. On the other hand, a mark C indicating unique information given to the casting material is integrally extracted.

In this embodiment, the marks C are six rows of linear information protrusions aJc, d, e, f, as shown in FIGS. 4 and 5.
Consisting of

For example, the information protrusions a and f in the first and sixth columns indicate reference marks for making the unique information reading device K11, which will be described later, recognize the start of reading.

The reason why the lengths of the information protrusions a and f are different is to prevent erroneous detection in case the casting material A is mistakenly inserted in the opposite direction.

The information protrusions 1) and C in the second and third columns indicate product numbers, and 622 columns are provided in order to cope with the diversification of products.

The information protrusion d in the fourth column is for preliminary information on the product number, and normally it is R type (right side (=t), L
There are three types: type (mounted on the left side), R1, and no distinction between types, but it can also be used for information on special products in the fifth column.

Further, the information protrusion e in the fifth column indicates whether or not the casting material A is a standard product. In the case of this example, since it is a standard product, the information protrusion e
There is no such provision, but in the case of special products, it is provided.

Furthermore, the information protrusions a + b, c, in each column described above
d + e = f are shown in Figure 6, respectively.
It can take the form of a protrusion.

That is, each information protrusion is divided into four pieces by dividing a linear protrusion having a certain length into four pieces, and by making the positions and numbers of the divided pieces E different, each information protrusion contains a small amount of information content ■-■. I can do it.

Further, by arbitrarily selecting these protrusion forms for each column, or by combining them, various types of unique information can be represented by marks C.

Therefore, even if the casting material A has the same shape with the same height, the same width, and the same = i, large-value machining/processing information other than information regarding the shape can be transferred to arbitrary information protrusions a, b, c, d
By changing the protrusion form ■ ~ [phase] of , e, f,
Each mark C can have one.

]Configuration of unique information reading device 11] Next, the configuration of the unique information reading device 11 for reading the unique information included in the mark C described above will be described.

As shown in FIGS. 2 and 7, this embodiment includes a lamp device 11a that irradiates a light beam from an oblique direction toward a mark C at a predetermined inclination angle θ, and a lamp device 11a that emits light beams from an oblique direction toward a mark C. or a shadow, that is, a camera device 11 that captures the unique information contained in the 7-ri C as images 1.2 consisting of bright and dark areas and transmits the same image signal to the control device S (see Fig. 1).
It is composed of b.

With this configuration, the unique information of the mark C attached to the bottom plate 13t of each casting material is sent to the control device S, and the control surface S is made to determine the unique information of the casting material A, and the necessary information is sent to the control device S. A processing control signal is sent to the NC-controlled handgrip hole processing device P and Heaton hole processing device Q, and the casting material A is
Handgrip mounting holes and heaton holes can be provided precisely at the required locations.

[Description of the drilling work in the casting material A 1] Next, on the production line BL described in 1-, the work of drilling hand grip attachment holes and heat-on holes in the casting material A having the above mark C. Let me explain in detail.

Process of production line B for hollow casting bathtubs shown in Figure 1
4. In the 4-gearing process, each casting material A is transferred to the conveyor 1 by operating the operating switches etc. on the operation panel O (see Figure 1).
The o-L-ir is moved (-6) and installed on the conveyor container IO by the mark reading device 11, as shown in Figure 2, to mark the mark C on the bottom plate I3 of the casting material.
The unique information read is read, and the read unique information is inputted to the control device SD as a signal, which drives the handgrip hole machining device P and the heat hole machining device Q, thereby forming the surface of the casting material A. It is possible to drill the desired location of the L handle, the bolt mounting hole, and the hinge hole.

In this way, in the present invention, the mark C is used to read the unique information between each casting material, so even if the row shapes are the same, other unique information (for example,
Marks C can be used to reliably and accurately identify various types of casting products A, which differ in the mounting positions of hand grip holes and heaton holes, and the distinction between standard products and special products. By using the controlled handgrip, hole forming device P, and heaton hole forming device Q, necessary mechanical work corresponding to the unique information can be automatically performed.

In addition, as shown in Figures 4 and 5, the mark C is integrally cast on the surface of the casting material A with a sufficient thickness H (e.g., 2 mm) and width W (e.g., 4 am). Because of this, the mark C does not disappear due to peeling or become thinner due to rubbing A during the Ka-O process 1, and the unique information included in the mark C can be accurately read to machine the desired hole. It can be carried out.

Furthermore, based on the unique information from the mark C mentioned above,
It is possible to easily calculate the production numbers of various casting materials A or finished products subjected to subsequent enamel processing, and inventory management can be performed reliably and easily.

[Method for deriving the mark C on the bottom surface-1 of the casting material A] Next, in a vacuum forming method, the above-mentioned mark is formed on the bottom surface of the casting material crystal A using the mark forming plate 40 provided with the projections for forming information projections. A preferred method that can integrally cast C will be described.

However, the information protrusions that can be cast into the casting material A1- by the method described below have a trapezoidal cross-sectional shape L7, unlike the rectangular cross-sectional shape shown in FIGS. 4 and 5.
Furthermore, the mounting positions and numbers are also different.

First, the overall configuration c of the casting mark forming plate 4o will be explained with reference to FIGS. 8 to 13.

In the 10th and FIG. 11, to the protrusion-formed product 2o described later.
32 is shown in a state in which the cast material molding plate 40 is not attached.

As shown in the figure, the mark forming plate 40 has an oval shaped streetcar groove 4 formed in the central part over two rows.
1.42.

Further, the casting material mark forming plate 40 has a forming piece fitting groove 4.
1.Protrusions r+ and p+ for forming common information protrusions on both sides of 42
, q+ are attached physically, and the common information protrusion forming protrusions r', o', p', and q' contain mark information common to the plurality of casting crystals A to be processed. It's a 7+.

Furthermore, the casting material mark forming plate 40 has, at its four corners,
A mark forming plate mounting hole 47 is provided for mounting a connecting pole 50 which will be described later.

On the other hand, FIGS. 8 and 9 show unique information projection forming projections a', b', c', d', e', f'4 having different shapes and numbers at different locations on the - side surface. '+h'+j'
J'.

Various kinds of oblong protrusion forming pieces 20 to 32 having lZI'+'' are shown.

These unique information projection formation projections a', b', c', d
'.

e', f', g',! +', j', ni', l', m',
n' is for forming an information protrusion including a product number indicating the drilling position information of the hand grip hole (=1 hole and Heaton hole), for example.

In addition, each unique information protrusion forming protrusion a', b', c', d
e', r',,', h°, j+, kl, l+
, , l , nl are (1 year old, 13th
As shown in the figure, both cameras are equipped with a camera.
(1i
It has a trapezoidal cross-sectional shape with a slope.

In addition, in order to prevent defects during molding and casting as much as possible, the slopes on both sides f are designed to have a smooth shape. It forms SZ.

Then, among the protrusion forming pieces 20 to 32 described above, select any one protrusion forming piece from the protrusion forming pieces 20=29 shown in FIG. As shown in FIGS. 12 and 13, one side surface t of the casting plate 7,
22, which is fitted and fixed in the forming bar fitting groove 42 provided, selects an arbitrary protrusion forming piece from the protrusion forming pieces 30=32 shown in FIG.
By fitting and fixing the forming piece into an oval forming piece fitting groove 41 provided on one side surface, a marl forming plate 40 having all the information protrusion forming projections can be formed.

In this way, any seven protrusion forming pieces are selected from the thirteen protrusion forming pieces 20-, 32, and the forming piece fitting grooves 41°4 are inserted.
By fitting into 2, 1. Handgrim removal I-J
Any product number information can be included in the casting product code forming plate 40 from among many types of product numbers indicating drilling position information of n4 and Heaton holes.

In addition, as shown in FIGS. 8 and 9, each protrusion forming piece 20=328. t, and a fixing protrusion 43 on the back side.
, 44 are provided, and the mounting positions of the fixing protrusions 43 and 44 are different. On the other hand, as shown in FIGS. The grooves 41, 42 are provided with fixing protrusion fitting grooves 45, 46 at locations corresponding to the above and other fixing protrusions 43, 44 on their inner bottom surfaces, so that the fixing protrusions 43, 44 are fixed. Therefore, the protrusion forming pieces 20 to 29 and the protrusion forming piece 3 are fitted into the protrusion fitting grooves 45 and 46.
0=32 can be fitted and fixed in the forming piece fitting groove 4L42c without making a mistake in the mounting position.

Next, the mark forming plate 40 formed according to the J=writing procedure is placed on the first
As shown in Fig. 2, by passing the connecting jf bolt 50 through the mark forming plate attachment hole 47 and attaching its tip to the bottom of the upper shape H having the same shape as the casting material A, Firmly attach the mark forming plate mounting hole 47 to the bottom of the upper mold) 2.
：Attach.

After that, as shown in FIG. 14, the upper frame 5 is attached to -F of the upper mold H.
2. After that, an upper mold 5G is created by filling with sand and removing air from the air outlet 54 of the upper frame 52, and each time the upper mold 5G is separated from the upper mold H,
Can produce 5G upper mold.

By a similar method C1-, an L-1 lower mold 55 as shown in FIG. 15 can be molded.

As a result, as shown in FIG.
- Mark forming grooves 57 are formed on the flat inner surface of the mold.

Next, as shown in FIG. 15, the upper and lower molds 55+56 are assembled to form a casting space between the molding surfaces of the two, and the molten metal is poured into the casting space, and after slow cooling, the casting material A is formed. do.

During this casting operation C12, the molten metal mark forming groove 5 is
As shown in FIGS. 2 and 3, a mark C can be cast on the bottom plate 13 of the cast product A as a cast product.

By using the mark forming plate 40 in this case,
The mark C containing unique information can be easily and integrally formed on the bottom plate 13 of each casting body.

[Brief explanation of the drawing]

FIG. 1 is a conceptual explanatory diagram showing the main parts of a casting product manufacturing line for casting products having an information mark according to the present invention;
Figure 2 is an enlarged side view of the same manufacturing line, the third is a plan view of the same, Figure 4 is a plan view of the mark, Figure 5 is a cross-sectional view taken along the line 1-1 in Figure 4, and Figure 6 is a view of the mark. A diagram explaining the arrangement of the information protrusions to be formed, Part 7 is an explanatory diagram of the state of use of the unique information reading device, FIGS. 8 and 9 are plan views of a plurality of protrusion forming pieces having protrusions for forming information protrusions, 2 and 10 Figure 11 is a plan view of the casting mark forming plate, Figure 11 is a front view of the same, and Figure 12 is an explanatory view showing the casting mark forming plate placed in an upper mold for producing a cast enamel bathtub. , Fig. 13 is an explanatory diagram of the state of the information protrusion forming plate of the casting material mark forming plate-1, Figs. 14 and 15 are explanatory diagrams of the vacuum forming method, and Figs. 16 and 17 are This is a flowchart 1 showing the steps of the vacuum forming method. In the figure, A: Casting base product B: Production line C: Mark P: Hand grinding hole processing device Q: Heater 1 to hole cutting device 1O: Conveyor container 11 : Unique information reading device 13: Bottom analysis 40: Casting material mark formation analysis

Claims (1)

[Claims] 1. An information mark having unique processing information is cast on the surface of a cast product, and the mark is formed from multiple rows of linear information protrusions with different lengths and positions. Cast metal products with distinctive information marks. 2. Information according to claim 1, characterized in that each row of information protrusions is formed by dividing a linear protrusion having a constant length into a plurality of pieces, each of which has a different number and position. Cast products with marks.