JP4827793B2 - Date code stamping system - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a code stamping system used for an injection mold, and more particularly, to an injection mold date code used for an article molded and manufactured by applying a buckle or other mold and an identification date displayed. It relates to the marking system.

  An injection mold is usually used for manufacturing a plastic resin in the shape of a usable product (for example, a buckle). As a method, a resin is injected into the cavity to obtain a required shape. Sometimes a defect occurs in the mold or the resin, but since it is mass-produced, it is almost impossible to specify the time and position where such a defect occurred.

  Plastic buckles are applied to various products such as jackets, gloves, rucksacks and sports equipment. The quality of these buckles must be reliable and strong. If a certain type or one buckle is defective, the manufacturer can identify which mold was used for that buckle and which cavity was used to produce it on which day. There must be. In addition, when a problem occurs in a specific same lot of resin or manufacturing process, the final product after molding may be defective.

  There is currently no method or device for assigning codes to these items and looking for the location of the defect. There are many reasons to explain the importance of finding the location of the defect, but one of them can recover all the defective products without having to recover everything involved in the manufacturing process, The part is not affected.

  For this reason, it is necessary to provide a method for attaching a date, a mold, and a code relating to a cavity to a molded product to improve convenience in finding defects. In addition, this method should not significantly affect the cost, manpower, and product manufacturing time.

The present invention mainly relates to the provision of a system for engraving a code on a die-molded product that does not require special human power or technical skill.

Therefore, a first object of the present invention is to provide a system for marking a code on an improved injection-molded product, which can easily determine a defective mold and a cavity.

A second object of the present invention is to provide a system for marking a code on an improved injection molded product that does not affect the manufacturing process.

A third object of the present invention is to provide a system for imprinting a code on an improved injection molded product that is easy and does not sacrifice cost or manufacturing time.

A fourth object of the present invention is to provide a system for imprinting a code on an improved injection molded product that allows any product produced by a defective cavity to be identified and tracked and retrieved. It is to provide.

A fifth object of the present invention is to provide a system for manufacturing an injection molded product having a permanent record that does not hinder the effect and function of the product.

  The date code stamping system of the present invention includes at least one composite identification information section including information formed on a member molded using a mold, and any one of the members molded using the mold. It includes a pointer part used for selecting information of at least one compound identification information part on the surface.

  Other objects and advantages of the invention will be readily apparent or may become apparent from the detailed description.

  The structural features, assembly, arrangement, procedure, and process of the present invention are exemplified by the structure described below, but the scope of the present invention is described in the claims.

The present invention is an injection-molded article that is useful for determining the location of a defect in an injection-molding process so that it can be determined which mold and cavity are used for a defective member of an injection-molded article manufacturing apparatus and when it is manufactured. It relates to a code stamping system . In general, the buckle is manufactured using a male type and a female type. Each mold includes at least one cavity, and in a more general method, a plurality of cavities are provided, and a plastic resin is injected into the cavity to produce an injection molded product. When manufacturing a buckle, one cavity is used as a male mold and another cavity as a female mold. The present invention provides a system for stamping cords in a plurality of cavities forming male and female dies in a mold, allowing tracking of the formation time and location of a particular site.

  In order to facilitate understanding of the present invention, a detailed description will be given below with reference to the drawings.

  As shown in FIG. 1, the mold 100 includes a cavity 110 serving as a buckle forming portion. In this embodiment, the buckle forming portion and the bottom portion 120 are shown together. FIG. 1 shows the upper half of a single mold 100 for buckle molding. The other half of the mold is not displayed. The two half molds shown in the upper and lower parts of FIG. 1 have the structure of the remaining parts of the upper and lower two molds except that receiving areas 130, 131, 132, and 133 are opened in the lower mold. All are the same. The bottom 120 is provided with general equipment for heating / cooling the injection molding material using a conventional method. As shown in FIG. 1, receiving areas 130, 131, 132, 133 for receiving marking devices are provided in the cavity 110. In the best embodiment, this receiving area can be provided as a penetration hole through which the marking device can be penetrated into the cavity as shown in FIGS.

As shown in FIG. 2, in the best embodiment of the mold code stamping system of the present invention, the identification information section includes stamping boards 200 , 210 , 220 installed at the ends of the cylindrical bodies 201 , 211 , 221. Including. In addition, the year marker 230 of the manufacturing year is provided, and this year marker does not need to be changed every day. In the best embodiment shown here, the year marker 230 is a triangle, and each corner is used as a pointer indicating the index of the stamping board 200, 210 , 220. Numbers or letters in the engraved plate, and other code is provided, intended to indicate a convenient date and other indicators to find a suitable mold or cavity. The state of the molded product before the above-described stamping boards 200, 210, 220 and the year marker 230 of the manufacturing year are shown on the upper side of FIG. The stamping board after processing a symbol is shown in the lower side of FIG.

As shown in FIG. 3, when inserting the year marker 230 of the triangle to the mold 100, against the heating / cooling facilities (not shown) on the back of the year marker 230, and holds the positioning of year marker 230, Year The marker 230 is prevented from falling off when the mold is used and moved, or when the resin is injected into the mold at a high pressure. Since the stamping plates 200, 210, and 220 of the year marker 230 are installed at the bottom of the cavity, when the injection molded article is taken out from the cavity, the symbols and designs displayed on the year marker 230 of the mold are stamped. Since the display on the finished product is in a state of a mirror image of the information on the stamping board, it can be clearly read when this information is stamped on the molded article. For this reason, in the application drawings, this information is shown on the molded article. FIGS. 13 and 14 show the actual appearance of the year marker 230 of the code design of FIG. 5 shown on the molded article. FIG. 4 shows a molded article 150 on which an inscription is formed in the identification information section. As can be seen, the molded article includes a reference area 160 that can be selected by the manufacturer. This reference area is a symbol stamped using a marking device (stamping board 200, 210, 220 and year marker 230). And designs are included.

FIG. 5 shows a state in which a code design to be processed by the stamp boards 200 , 210, 220 and the year marker 230 is displayed on the molded article 150. Each stamping board shows reference materials such as the date of use of the mold. In the best embodiment shown in FIG. 5, the code design 220a processed by the stamping board 220 indicates the month when the molding is performed, and the code design 210a processed by the stamping board 210 is the day of the molding (1's place). The target code design 200a processed by the stamping board 200 indicates the date (10's place) on which the molding was performed. The year marker 230 of the triangular production year is used as a guide to indicate which code on the code designs 200a, 210a, 220a has been selected. Each corner of the triangle will guide pointing engraved plate 200, 210 and 220 (see FIG. 2). In the stamping board 220 of the month in which the molding was performed, the numbers 1 to 9 correspond to January to September, “0” corresponds to October, “x” corresponds to November, and “y” corresponds to December. Corresponding to For example, what is shown in FIG. 5 indicates the date of January 11, 2006. The stamping board used to indicate the date of manufacture on the mold and the stamping board on each cavity on the multi-cavity mold are adjusted daily to show the date of the manufacturing process date when the mold was accurately operated It is necessary to do so. Before starting the daily work, the engineer adjusts the stamping board to an appropriate date in advance, usually using a screwdriver or other similar tool, and installs the cylinder (201, 211, 221) or multiple cylinders. Insert into the mold. When this information needs to be changed, a stopper device or an elongated hole is provided at a position corresponding to the line 215 in the stamping board, and a screwdriver or other tool is inserted to rotate the stamping board. A line 215 appears as a clear line in the code design of the die-molded article surface shown in FIG. 5, which corresponds to an elongated hole on the stamping board in the cavity. Furthermore, the cavity and the stamping board are actually provided with a mirror image of this code, and when the article is molded with a mold in this way, the code appears on the surface of the article molded in a form that can be clearly and easily read.

The year marker 230 of the year of manufacture indicates the year that the mold was operated, and this only needs to be changed once a year.

FIG. 6 to FIG. 9 show changes in the code pattern formed after the combination of the marking devices on the mold. Shown here is a stamp formed on an article molded with a mold. In these examples are used to indicate the date on which to add the marker 325,425,525,625 Another triangles, it was performed a month or molding was performed molded to form a code diagram draft. In these examples, code designs 320, 420, 520, and 620 indicate the month in which the molding was performed, and code designs 310, 410, 510, and 610 processed by the stamping board are the days of the molding (10th place), Code designs 300, 400, 500, and 600 processed by the stamping board indicate the date (1's place) on which the molding was performed.

For example, the date indicated in FIG. 6 is October 11, 2006. When the sign design 325 of FIG. 6 is permanently installed, the triangular year marker need not be changed. This can be applied to other permanent information member identification codes, and can be used, for example, to display mold / cavity information, manufacturer names, mold dimensions, and the like. As described above, these corresponding stamps need to be adjusted daily on lines 315, 415, 515, 615 using a stopper device to indicate the exact mold operating date. In addition to the stamping board, the present invention also contemplates using other shaped mechanisms to provide this type of information on the molded article. FIGS. 5 to 9 show several different geometrical arrangements of stamps with the same information. FIG. 5 shows the arrangement of the current best embodiment, with these three stamps 200 , 210 , 220 gathered around the year marker 230 of a triangular production year. However, it is generally most desirable to place the date code on the relatively flat surface and bottom of the molded article so that the date code does not interfere with the use or appearance of the molded article. Depending on the situation, when these three stamping boards 200, 210, 220 and the year marker 230 of the manufacturing year are assembled, it may not be possible to concentrate on one place. FIGS. 6 to 9 indirectly show different arrangements of these three stamps and the year marker 230 of the manufacturing year with a processed code design. 6 horizontally arranged as shown in FIG. 6, vertically arranged as shown in FIG. 7, arranged in an L shape as shown in FIG. 8, or distributed in two places as shown in FIG. Can be arranged. In addition, there is another arrangement method including an arrangement in which all the stamps are separated. In general, additional guidelines should be used when the stamping board is moved away.

  FIG. 10 shows a marking apparatus 1000 for additional information. With the thin plate placed in the cavity, additional information such as company name, item, mold dimensions and cavity, etc. can be displayed on the molded part. In general, this information does not change and can be forever present in the cavity by placing it on a thin plate or making it directly on the mold. This information can be stamped on the other of the two buckle moldings or on the same buckle molding with a date indicator and can be determined by the available surface area of the molded article. This information helps to reduce the range of molds and cavities that produced defective products, and is useful for finding potential defective products produced by the cavities, resins, and molds. When a defective product occurs, the surface of the product itself includes indicators that can track the manufacturer, date of manufacture, mold type and cavity, making it easy to collect other potentially defective products. It can be performed more efficiently. In addition, when it is found that there is a problem with the product being tested, this information can be used to find the scope and source of the problem.

  The principle used in the arrangement of information is determined by the available surface area of the molded article. The current best embodiment requires a fairly flat area of 10 mm x 10 mm. It is best to place this information on a substantially flat surface of the molded article. Placing this information on a substantially flat surface not only makes it easier to place the marking device in the mold but also makes it easier to read. The stamping board of the present invention is very small and can be 4 mm in diameter. The stamping board can be rotated by hand, and can be inserted into the elongated holes of the lines 215, 315, 415, 515, 615 formed at the center of the stamping board using any tool such as a flat-blade screwdriver. It can also be rotated.

  FIG. 11 shows another embodiment of the mold marking system. The sign design is formed with a multi-layer stamp 700 and can indicate the date the mold was operated. Among them, the central stamping board 710 shows the date of molding (100's place) and year, the middle stamping board 720 shows the date of molding (10's place), and the outer stamping board 730 shows the date of molding ( Point to 1). Since the central stamping board 710 has an elongated hole corresponding to the pointer line 715, the stamping board 710 can be rotated, the line is located on the right side of the date with the end facing upwards, At 715, the tenth digit on the stamping board 720 can be indicated. Similarly, the elongated hole 725 on the stamping board 720 indicates the date on the stamping board 730. Therefore, the date indicated in this example is the 210th day of 2006, that is, July 29, 2006. Since the stamping boards 710, 720, and 730 shown in FIG. 11 have a star-like shape (a non-circular edge), they are meshed with each other. In other embodiments, as shown in FIGS. 5 to 9, the outer edge portion of the outermost stamping board can be made circular, and the stamping board can be easily rotated. The pointer line 715 can be an arrow or other distinguishable code so that it can be read quickly.

  FIG. 12 shows another embodiment of the present invention. Among them, in the two-layer type stamping board system 800 including the stamping boards 810 and 820, the inner ring 830 of the stamping board 810 indicates the year and the outer ring 840 indicates the month. The stamping board 810 is provided with an indicator 835 indicating the date (10's place) on the inner ring 830, and the stamping board 820 is provided with an inner stamping board 850 and an outer stamping board 860 indicating the date (1's place). A pointer 855 is provided on the internal stamping plate 850, and the pointer 855 is an elongated hole on the actual stamping plate in the cavity and can be used to rotate the stamping plate, and an arrow 856 is provided at the upper end thereof. Is provided and serves as a guideline used to identify the external stamping board 860. Similarly, an arrow 836 is also provided on the pointer 835 of the inner ring 830 of the stamping board 810 and is used to indicate a selected value on the outer ring 840. The date indicated in this figure is January 21, 2006.

  Thus, the present invention provides an improved method of manufacturing a molded member that retains production information and a system for identifying production data on the molded member. The system includes imprinting date and cavity data on the molded part. The invention also relates to a molded part that is stamped with manufacturing information and can identify its source.

  The description given above is based on the best embodiment of the present invention, and does not limit the scope of implementation of the present invention. For this reason, all the changes and modifications which obtain the simple equivalent effect based on the content of the claim of this invention and the specification of an invention shall be contained in the scope of the patent of this invention.

It is a three-dimensional view showing a process of making a hole in a cavity. The upper figure shows the mold and the drill placed on it, and the lower figure shows the mold with three holes. It is a three-dimensional view of the mold marking device (including before and after imprinting the date). It is a three-dimensional view showing the operation of inserting the mold marking device into the hole of the cavity. FIG. 4 is a three-dimensional view of a buckle produced from the state where a mold marking device is installed in the three-dimensional view of the mold of FIG. It is a top view of Example 1 of the code | symbol design shape | molded using the metal mold marking apparatus. It is a top view of Example 2 of the code | symbol design shape | molded using the metal mold marking apparatus. It is a top view of Example 3 of the code | symbol design shape | molded using the metal mold marking apparatus. It is a top view of Example 4 of the code | symbol design shape | molded using the metal mold marking apparatus. It is a top view of Example 5 of the code | symbol design shape | molded using the metal mold marking apparatus. It is a top view of Example 6 of the code | symbol design shape | molded using the metal mold | die marking apparatus. It is a top view of Example 7 which applied the metal mold marking device. It is a top view of Example 8 which applied a metal mold marking device. FIG. 6 is a three-dimensional view of a mold marking device for forming the code design of FIG. 5. FIG. 6 is a three-dimensional view of a state in which a mold marking device for forming the code design of FIG. 5 is placed in a cavity.

Explanation of symbols

100 mold
110 Cavity 120 Bottom 130, 131, 132, 133 Receiving area 150 Molded article 160 Reference area 200, 210, 220, 810, 820, 850, 860 Stamping board 200a, 210a, 220a, 300, 310, 320, 325, 400, 410, 420, 425, 500, 510, 520, 525, 600, 610, 620, 625
Code design 201, 211, 221 Cylindrical body 215, 315, 415, 515, 615 Line 230 marker 700 Multi-layer type stamping board 710 Center stamping board 715 Pointer line 720 Middle stamping board 725 Slotted hole 730 Outer stamping board 800 Two layers Type marking board system 830 Inner ring 835, 855 Pointer 840 Outer ring 836, 856 Arrow 1000 Marking device for additional information

Claims (2)

A date code stamping system comprising three stamps installed at the end of a cylinder, and a triangular year marker disposed between the three stamps,
The first stamp has a 1's date indicator, the second stamp has a 10's date indicator, and the third stamp has a month The triangle year marker has three corners, and each corner functions as a pointer to each stamping board and also functions as a pointer for selecting the index on the stamping board. A date code stamping system, characterized by being configured to do so .
The date code stamping system of claim 1, wherein the stamping board is configured to select an indicator selected by a triangular year marker with a line rotating it .

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