CN101069986B - Date code marking device for mold-formed plastic product - Google Patents

Abstract

The invention discloses a date code marking device of a mold-molded plastic product, which comprises at least one date marker, wherein the top of the date marker is provided with a dial combination of date information and a pointer for determining specific production date, the date marker is fixedly installed at the bottom of a mold in an insertion manner, and the top surface of the dial on the date marker penetrates into a mold cavity of the mold. The date code marking device can mark the production date of the product on the surface of the product in the plastic product molding process, and provides visual time information for searching and problem analysis of defective products.

Description

A date code marking device for molded plastic products

technical field

The present invention refers to a date code marking device for molded plastic products, in particular to a date code marking device for plastic products of injection molds for producing fasteners, other molded items and molded items marked with identification dates Code marking device.

Background technique

Injection molds are commonly used to form plastic resins into the shape of usable products such as fasteners. The method is to inject resin into the mold cavity to make it into the desired shape. Sometimes molds or resins develop defects, but because of the high volume of manufacturing, it is nearly impossible to determine when or where such defects occur.

Plastic fasteners are used in many products such as jackets, gloves, backpacks and sporting goods. These buckles must be reliable and strong. If there is a defect in a certain type or a certain button, the manufacturer needs to be able to determine which mold cavity is used for the button and on which date it is processed. In addition, due to problems with a particular batch of resin or manufacturing process, the final molded product may also be defective.

There is currently no method or means to code these items for locating where the defect occurred. There are many reasons for the importance of locating where a defect occurred. One is that any defect can be recalled without having to recall the entire process, leaving many parts of the process unaffected.

Therefore, it is necessary to provide an improved date code marking device involving date, mold and cavity number, so as to facilitate the detection of defects. And this device will not significantly affect the cost, manpower and time used to manufacture the product.

Contents of the invention

The object of the present invention is to provide a date code marking device for molded plastic products, which can mark the production date of the product on the surface of the product during the molding process of the plastic product. Facilitate problem analysis.

The purpose of the present invention is achieved through the following technical solutions: a date code marking device for molded plastic products, including at least one date marker, the top of the marker is provided with a combination of dials for date information and for determining the specific production date The pointer of the date indicator is inserted and fixedly installed at the bottom of the mold, and the top surface of the dial on the date indicator penetrates into the mold cavity of the mold.

There are four date markers in the present invention, which are year markers, month markers, tens day markers and ones day markers, and the top of each marker is correspondingly equipped with a year dial and a month dial , the ten-digit day dial and the one-digit day dial, each dial is on the same plane, and the dial is engraved with numbers or/and letters representing the date; the year dial is a triangle, and the triangle dial The corner of the watch acts as a pointer to determine the specific production date.

The dials on the end faces of the month marker, the tens-digit day marker and the one-digit day marker of the present invention are all round faces, and the centers of the month dial, the ten-digit day dial and the one-digit day dial are all round. There is a long and narrow hole for turning the dial.

The dials of the month indicator, the tens day indicator and the ones day period indicator of the present invention are located around the triangular dial on the year indicator, and the three angles of the triangular dial are aligned with the desired position on the other dials. specified date.

In order to be more reasonable and optimize the marked position on the plastic product, the present invention also adds a pointer marker, the end face of the pointer marker is a triangle, and one or two corners of the triangle are used as a pointer to determine the specific production date, so The above-mentioned pointer marker is inserted and fixedly installed at the bottom of the mold, and its triangular top surface penetrates into the mold cavity of the mold; so that multiple markers can be arranged in different ways according to the shape of different plastic products, and the position of information marking can be reasonably distributed.

In order to mark more product information on the plastic product, words/letters/numbers marking product information are engraved on the triangular top surface of the pointer marker.

According to the shape of different plastic products, the multiple markers are arranged in a horizontal line, and from left to right are the dial of the ten-digit day marker, the dial of the year marker, and the dial of the one-digit day marker. The dials of the dial, the pointer indicator and the dial of the month indicator, wherein the two corners of the dial of the year indicator and one corner of the pointer indicator are aligned with the date to be specified on the other dial.

According to the shape of different plastic products, the plurality of markers are arranged in a vertical line, and from top to bottom are the dials of the month marker, the dial of the year marker, and the dials of the ones day marker. , the dial of the pointer marker and the ten-digit day marker, wherein one corner of the dial of the year marker and two corners of the pointer marker are aligned with the date to be specified on the other dials.

According to the shape of different plastic products, the multiple markers are arranged in a zigzag line, which are the dial of the month marker, the dial of the year marker, the dial of the ones day marker, the pointer marker and the tens digit. The dial of the day indicator, wherein one corner of the dial of the year indicator and two corners of the pointer indicator are aligned with the date to be specified on the other dial.

According to the shape of different plastic products, the plurality of markers are arranged separately, wherein the dial of the month marker is adjacent to the dial of the year marker, and one corner of the dial on the year marker is aligned The month to be specified on the month dial; the dial of the one-digit day marker, the pointer marker and the dial of the ten-digit day marker are adjacent, and the two corners of the pointer marker are aligned with the desired date on the dial. date.

The purpose of the present invention can also be achieved by the following measures, the date indicator is one, and the end of the indicator is provided with three dials, and the dials are ringed together in layers from the inside to the outside, wherein the most In the center is the dial for the year and hundreds of days, on which there is a long and narrow hole for turning the dial and as a pointer; A long and narrow hole, surrounded by a one-digit day dial.

The purpose of the present invention can also be achieved by the following measures, the date indicator is two, and the top of one indicator is provided with a rotatable year dial and a month dial, and the month dial ring covers The year dial, the year dial is provided with a slit with an arrow as a pointer, and the arrow in the slit points to the month of the month dial; the top of the other indicator is provided with a rotatable ten-digit day dial and a one-digit day number scale The dial is surrounded by a ten-digit day dial, and the ten-digit day dial is provided with a long and narrow hole with an arrow, and the arrow in the long and narrow hole points to the one-digit day dial.

The date code marking device of the present invention can print the production date information of the product on the surface of the product during the molding process of the plastic product, so as to facilitate the discovery of the occurrence date of the defective product and facilitate the query of the defective product.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the three-dimensional structure schematic diagram of mold in the prior art;

Fig. 2 is a three-dimensional structural schematic diagram of a mold used in conjunction with Embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of the overall structure of Embodiment 1 of the date code marking device of the present invention;

Fig. 4 is a schematic diagram of the first embodiment of the date code marking device of the present invention and the position of the matching mold used with it;

Fig. 5 is a structural schematic view of Embodiment 1 of the date code marking device of the present invention installed in the mold;

6 is a schematic diagram of the product structure of the plastic product produced by the date code marking device and the mold according to Embodiment 1 of the present invention;

7 is a schematic plan view of the dial of Embodiment 1 of the date code marking device of the present invention;

Fig. 8 is a schematic plan view of the dial of the second embodiment of the date code marking device of the present invention;

9 is a schematic plan view of the dial of Embodiment 3 of the date code marking device of the present invention;

Fig. 10 is a schematic plan view of the dial of Embodiment 4 of the date code marking device of the present invention;

Fig. 11 is a schematic plan view of the dial of Embodiment 5 of the date code marking device of the present invention;

Fig. 12 is a schematic plan view of the dial of Embodiment 6 of the date code marking device of the present invention;

Fig. 13 is a schematic plan view of the dial of Embodiment 7 of the date code marking device of the present invention.

Detailed ways

Embodiment one

As shown in FIG. 2 , a mold 100 has a mold cavity 110 for forming a button portion, that is, a male button portion and a bottom 120 in this embodiment. Figure 2 shows the top half of a mold 100 for single mold forming a button. The other half of the mold is not shown because the lower half of the mold of the upper and lower halves of FIG. 2 is identical except that the receiving areas 130 , 131 , 132 , 133 are drilled. The base 120 has or is equipped with conventional means for properly heating/cooling the injection molding material in a conventional manner. As shown in FIG. 2 , the receiving areas 130 , 131 , 132 , 133 for receiving markers are located in the mold cavity 110 . The receiving area is a through hole for receiving the marker shown in FIG. 3 to pass through the mold cavity 110 .

As shown in Figure 3, a date code marking device for molded plastic products includes four date markers, which are year marker 231, month marker 221, tens day marker 201 and ones day marker 211 , the end connected to the mold cavity 110 of the multiple markers is the dial of the marker, and the multiple dials are located on the top of the multiple markers and are on the same plane, which are respectively the year dial 230 and the month scale The dial 220, the tens-digit day dial 200 and the one-digit day dial 210 are engraved with numbers or/and letters on each dial. The month indicator 221, the tens day number indicator 201 and the ones day number indicator 211 are all cylinders, and the dials 220, 200, and 210 on the end faces are all round faces, and the year indicator is a 231 triangular body. The dial 230 is a triangle, and the dial 230 of the year indicator 231 is located in the middle position. The three corners of the dial 230 are the pointer of the date code marking device, the month indicator 221, the tens day number indicator 201 and the ones day number indicator. The dials 220 , 220 , 210 of the instrument 211 are located around the dial 230 of the year indicator 231 , and the positions correspond to the angles of the dial 230 of the year indicator 231 .

The year indicator 230 in this embodiment does not need to be changed every day. Its dial has numbers, letters or other symbols to help indicate dates and other indicators for finding the proper mold or cavity.

As shown in FIG. 4 and FIG. 5 , the date indicator is inserted into the bottom of the mold 100 and penetrates into the cavity 110 of the mold. When plastic is injected into the cavity 110 of the mold 100 , the plastic contacts the date indicator. Inserting the mold 100 will cause a heating/cooling device (not shown) to rest against the back of the marker and hold the marker in place to prevent the marker from falling out as the mold is used and moved around or when the resin is injected into the mold at high pressure, marking The dial part 200, 210, 230 of the tool stays at the bottom of the cavity, so when the injection molded object is taken out of the cavity, it bears the pattern of the logo displayed on the tool indicator. The markings that appear on the finished product are the exact opposite of the information on the dial, so that when this information is pressed against the molded object, it will be clearly readable. Icons in the app show how this information would appear on a molded object. The molded object has a reference area 160 that can be selected by the manufacturer, and the reference area includes the imprints of the markers 200 , 210 , 220 , 230 .

As shown in FIG. 7, the arrangement of dials 200, 210, 220 and 230 of the date indicator is displayed on the molded object. Each dial indicates a reference data, the dial 220 indicates the month, the dial 210 indicates the tens digit of the day (x10) and the dial 200 indicates the ones digit of the day (x1). The triangular year indicator 230 acts as a pointer to indicate which symbol on the dials 200, 210 and 220 is selected. Each corner of the triangle acts as a pointer relative to one of the dials 200 , 210 and 220 . For the month dial 220, numbers 1 to 9 correspond to January to September, respectively, "o" corresponds to October, "x" corresponds to November, and "y" corresponds to December. The date indicated in Figure 7 is January 11, 2006. Dials on the mold indicating the date of manufacture and on each cavity on multi-cavity molds must be adjusted daily to accurately indicate the date the mold was run. A technician will adjust the dial to the proper date at the beginning of each day, typically using a screwdriver or other similar tool and inserting the cylinder or cylinders into the mould. The dials of the month marker 221, the tens day marker 201 and the ones day marker 211 are all provided with slotted holes, through which the markers can be rotated. The opening of the slit hole and the line 215 are at corresponding positions. When the information needs to be changed, a screwdriver or other tools are used to insert the slit hole and turn the dial. Line 215 presents a solid line, which corresponds to the elongated hole on the dial in the mold cavity. Furthermore, the actual cavity and dial have the inverse shape of this symbol so that when the part is molded, the symbol will appear on the formed part in a clearly legible form. The year indicator 230 represents the year in which the mold runs, and it only needs to be changed once a year.

Embodiment two

As shown in Figure 8, different from Embodiment 1, the date code marking device in this embodiment also includes a pointer marker 325, which is also a triangular prism, and the dial on its end face is a triangle. A plurality of dials are arranged in a horizontal line, and from left to right are the dial 310 (x10) for the tens-digit day indicator, the dial 330 for the year indicator, and the dial 300 (x1) for the one-digit day indicator , the dial 325 of the pointer marker and the dial 320 of the month marker, wherein two corners of the dial 330 of the year marker and one corner of the dial 325 of the pointer marker are pointers of the date code marking device , The pointer marker 325 is plugged and fixedly installed on the mold, the dial of the pointer marker can be engraved with words/letters/numbers, and the dials 310, 300, 320 are all provided with slit holes 315.

The date indicated in Figure 8 is October 11, 2006. The triangular pointer indicator 325 is permanent and does not need to be changed. It can be applied to other permanent identification marks such as mold/cavity information, manufacturer name and mold size.

Embodiment three

As shown in Figure 9, different from Embodiment 1, the date code marking device in this embodiment also includes a pointer marker 425, which is also a triangular prism, and the dial on its end face is a triangle. A plurality of dials are arranged in a vertical line, and from top to bottom are the dial 420 of the month marker, the dial 430 of the year marker, the dial 400 of the single digit day marker, and the dial of the pointer marker 425 and the dial 410 of the ten-digit day indicator, wherein one corner of the dial 430 of the year marker and two corners of the dial of the pointer marker 425 are pointers of the date code marking device, and the pointer marker 425 is plugged in and fixed Installed on the mould, the dial of the pointer marker is engraved with characters/letters/numbers, and the dials 420, 400, 410 are all provided with narrow and long holes 415.

The date indicated in Figure 9 is October 11, 2006.

Embodiment four

As shown in Figure 10, different from Embodiment 1, the date code marking device in this embodiment also includes a pointer marker 525, which is also a triangular prism, and the dial on its end face is a triangle. A plurality of dials are arranged in a zigzag pattern, which are sequentially the dial 520 of the month indicator, the dial 530 of the year indicator, the dial 500 of the ones day indicator, the dial 525 of the pointer indicator and the tens day indicator The dial 510 of the dial 510, wherein one corner of the dial 530 of the year marker and two corners of the dial of the pointer marker are pointers of the date code marking device, and the pointer marker is inserted and fixedly installed on the mold. Text/letters/numbers are engraved on the dial to contain more product information. Dials 520, 500, 510 are all provided with narrow and long holes 515.

The date indicated in Figure 10 is October 1, 2006.

Embodiment five

As shown in Figure 11, different from Embodiment 1, the date code marking device in this embodiment also includes a pointer marker 625, which is also a triangular prism, and the dial on its end face is a triangle. The pointer marker 625 is inserted and fixedly installed on the mould, and the dial of the pointer marker is engraved with words/letters/numbers, and a plurality of markers are arranged separately, wherein the dial 620 of the month marker and the dial of the year marker The dial 630 is adjacent, and one corner of the dial 630 of the year marker is the pointer of the date code marking device, which is used to point to the corresponding month, the dial 600 of the single digit day marker, and the dial of the pointer marker Adjacent to the dial 610 of the ten-digit day indicator, the two corners of the dial of the pointer indicator are also pointers of the date code marking device, which are used to point to the corresponding date. On the dials 620, 600, 610 Both have narrow and long holes 615 .

The date indicated in Figure 11 is October 1, 2006.

Embodiment six

As shown in Figure 12, the difference from Embodiment 1 is that the date code marking device in this embodiment has one date indicator, and the end of the indicator is provided with three dials, and the dials form a layered ring from the inside to the outside. Set together, wherein, the most central indicator is the year and hundreds of days indicator 710, which points out the day (x100) and the year, and its end is a dial, and there is a long and narrow hole corresponding to the line 715 in the middle of the dial. The narrow hole is the pointer of the date code marking device, so the dial can be rotated so that the end of the line points up and is located on the right side of the x100 day, and the line points to the number x10 on the dial, and the marker in the middle is the ten-digit day number. device 720, which points out the day (x10), and the dial at the end also has a slot 725, which is also the pointer of the date code marking device, and the slot 725 on the dial 720 points to the dial On the day, the peripheral indicator is a one-digit day indicator 730, which points out the day (x1). The date indicated on FIG. 12 is the 210th day of 2006, that is, July 29, 2006.

Embodiment seven

As shown in Figure 13, different from Embodiment 1, the date code marking device in this embodiment has two date markers, and the top of one marker is provided with a rotatable year dial 830 and The month dial 840, the month dial 840 ring sets the year dial 830, the year dial 830 has a slit hole 835 with an arrow 836, the arrow through the slit hole points to the month, and the year dial 830 can also be rotated through the slit hole 835 The top of the other indicator is provided with a rotatable ten-digit day dial 850 and a one-digit day number dial 860, and the one-digit day number dial 860 is surrounded by a ten-digit day number dial 850. The slit hole 855 with arrow 856, the arrow pointing to the single digit number of days by the slit hole 855, also can rotate the ten digit day number dial 850 by this slit hole 855. The ten-digit day dial 850 needs to be replaced every 10 days within a month, and the markings on the dial are 00, 10, 20 and 30 in sequence. Ones day dial 860 ring set ten days dial 850, the date indicated in Figure 13 is January 21, 2006

The above descriptions are only preferred embodiments of the present invention, and cannot limit the scope of the present invention; all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention should still belong to the patent of the present invention within the scope covered.

Claims (10)

1. A date code marking device for molded plastic products, comprising at least one date marker, the top of the marker is provided with a combination of dials for date information and a pointer for determining a specific production date, and the date marker The device is inserted and fixedly installed at the bottom of the mold, and the top surface of the dial on the date indicator penetrates into the mold cavity of the mold. It is characterized in that: there are four date indicators, which are year indicator and month indicator respectively. , ten-digit day indicator and one-digit day indicator. The top of each indicator is equipped with a year dial, a month dial, a tens-digit day dial and a one-digit day dial. Each dial is on the same plane On the dial, numbers or/and letters representing the date are engraved on the dial; the year dial is triangular, and the angle of the triangular dial is used as a pointer to determine the specific production date; the month indicator, the ten-digit day number The dials on the end faces of the device and the ones day number indicator are all round faces, and the centers of the month dial, the tens day number dial and the ones day number dial are all provided with narrow and long holes for rotating the dials. 2. A date code marking device for molded plastic products according to claim 1, characterized in that: the dials of the month marker, the tens day marker and the ones day period marker are located at the year Around the triangular dial on the indicator, the three corners of the triangular dial are aligned with the date to be specified on the other dials. 3. A date code marking device for molded plastic products according to claim 1, characterized in that: said date code marking device also adds a pointer marker, the end face of the pointer marker is a triangle, and the triangle One or two of the corners are used as a pointer to determine the specific production date. The pointer marker is inserted and fixedly installed at the bottom of the mold, and its triangular top surface penetrates into the mold cavity of the mold. 4 . The date code marking device for molded plastic products according to claim 3 , wherein characters, letters or/and numbers marking product information are engraved on the triangular top surface of the pointer marker. 5. A date code marking device for molded plastic products according to claim 1 or 3, characterized in that: said multiple markers are arranged horizontally in a straight line, and from left to right are ten-digit days The dial of the marker, the dial of the year marker, the dial of the ones day marker, the dial of the pointer marker and the dial of the month marker, the two corners of the dial of the year marker and the dial of the pointer marker Align one corner with the desired date on the other dial. 6. A date code marking device for molded plastic products according to claim 1 or 3, characterized in that: the multiple markers are arranged in a vertical line, and the month is marked sequentially from top to bottom The dial of the indicator, the dial of the year indicator, the dial of the ones day indicator, the dial of the pointer indicator and the dial of the tens day indicator, wherein one corner of the dial of the year indicator and two of the pointer indicator Align one corner with the desired date on the other dial. 7. A date code marking device for molded plastic products according to claim 1 or 3, characterized in that: said multiple markers are arranged in a zigzag shape, which are the dial of the month marker and the year marker in turn The dial of the day indicator, the dial of the ones day indicator, the dial of the pointer indicator and the dial of the tens day indicator, wherein one corner of the dial of the year indicator and two corners of the pointer indicator are aligned with the other dials The date to be specified above. 8. A date code marking device for molded plastic products according to claim 1 or 3, characterized in that: said multiple markers are arranged separately, wherein the dial of said month marker Adjacent to the dial of the year indicator, one corner of the dial on the year indicator is aligned with the month to be specified on the month dial; The dial of the indicator is adjacent, and the two corners of the pointer indicator are aligned with the date to be specified on the dial. 9. A date code marking device for molded plastic products according to claim 1, characterized in that: there is one date marker, and three dials are arranged at the end of the marker, and the dials are from inside to outside They are nested together in a layered ring. Among them, the most central is the year and hundreds of day dials. The dial has a narrow and long hole for rotating the dial and acting as a pointer. The middle is the ten-digit day dial. There is also a long and narrow hole for rotating the dial and as a pointer, and the periphery is a one-digit day dial. 10. A date code marking device for molded plastic products according to claim 1, characterized in that: there are two date markers, one of which has a rotatable year dial on the top and the month dial, the month dial is surrounded by the year dial, and the year dial is provided with a narrow hole with an arrow as a pointer, and the arrow in the narrow hole points to the month of the month dial; the top of the other indicator is provided with a The rotating ten-digit day dial and the one-digit day number dial, the one-digit day number dial is surrounded by the ten-digit day number dial, and the ten-digit day number dial has a long and narrow hole with an arrow, and the arrow in the long and narrow hole points to the one-digit day number scale plate.

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