JPH09108085A - Manufacture of tableware containing tableware recognition responder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of tableware which enables molding of tableware containing a responder at a specified point by a single heating without the peeling of the responder even under a washing. SOLUTION: A material 3 for molding a first part 5 of tableware is put into a concave die 3 and a first convex die is put together with the concave die 3 to mold the first part 5 of the tableware. Then, the first convex die is replaced with a second convex die 2 and a responder 8 is placed on the first part 5 of the tableware molded in the concave die 3. A material 6 for molding the second part of the tableware is put on the responder and the responder 8 is buried having the second part of the tableware integrated with the first part 5 thereof to mold.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing tableware containing a tableware recognition responder.

[0002]

2. Description of the Related Art Conventionally, for example, when rice, miso soup, side dishes, etc. are separately placed in tableware for lunch, in order to judge the tableware mechanically, a responder, which is a sensor, is attached to the tableware with adhesive or tape. Was attached to the bottom of the.

However, in the conventional method of attaching the transponder to the bottom of the tableware with an adhesive or tape, the transponder is peeled off little by little every time the tableware is washed or heat-dried and disinfected, and the transponder is re-applied every few times. Must be reattached.

Generally, light, ultrasonic waves, etc. are not suitable as a detecting means for a tableware in which a transponder is embedded, and electromagnetic detection is preferable. Therefore, as a result of research conducted by the present inventors, it was found that a sensor, that is, a responder, that detects a resonance frequency is preferable. However, this transponder is in the form of a thin film, and it is not possible to stably embed this film-shaped transponder in a predetermined position without damaging it when molding general plastic tableware with a mold or the like. It was difficult.

In order to solve this problem, the present applicant has previously proposed in Japanese Patent Application No. 6-291417 a method for producing tableware in which tableware having a responder at a predetermined position can be formed. However, this proposal is effective, but since the transponder is heated in the two molding steps, that is, the step of molding the transponder-embedded piece and the step of molding the tableware, it is carried out for a transponder that does not have excellent heat resistance. That is not preferable.

[0006]

Therefore, the present invention provides a method for producing tableware in which the transponder does not peel off even if it is washed and the tableware with the transponder embedded therein can be formed by heating the transponder only once. Is intended.

[0007]

According to the method for producing tableware with a tableware recognition responder of the present invention, a lower mold for molding tableware with a tableware recognition responder and two upper molds, a first mold and a second mold, are prepared. Then, put the raw material for molding the first part of the tableware into the lower mold, mold the first part of the tableware with the first upper mold and the lower mold,
Then, the first upper mold is replaced with the second upper mold, the responder is placed on the first portion of the formed tableware in the lower mold, and the second tableware is placed on the responder. A raw material for molding the portion is put in, and the second portion of the tableware is molded integrally with the first portion by embedding the responder.

Further, according to the present invention, first and second sets of a lower mold and an upper mold for molding tableware with a tableware recognition responder are prepared, and a first portion of the tableware is provided in the first lower mold. The first part of the tableware is molded with the first upper mold and the first lower mold, and then the first part of the molded tableware is molded into the second lower mold. Place the transponder on top of it, put the raw material for molding the second part of the tableware on them, and mold the second part of the tableware by embedding the transponder integrally with the first part .

It is also possible to use raw materials of different colors for the raw material of the first portion of the tableware and the raw material of the second portion of the tableware.

The transponder preferably uses a plate-shaped electromagnetic wave resonator.

Therefore, since the transponder is installed between the first part and the second part of the tableware and is embedded between the two parts, the transponder may be peeled off by washing or heat-drying disinfection of the tableware. Not hurt.

Further, the transponder is heat-molded only when the second part is molded, so that the transponder is not damaged by heating during molding.

As described above, according to the present invention, since the burying work of the transponder can be performed by one-time heat molding, it is possible to easily make the tableware in which the transponder is embedded without damaging the transponder. it can.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show a manufacturing process for forming a tableware 10 with a tableware recognition responder according to the present invention, in which the upper mold is convex and the lower mold is concave. First, in the raw material charging step of the first portion of the tableware, as shown in FIG. 1, the concave mold 3 as the lower mold and the first convex mold 1 as the first upper mold are attached to a press molding machine not shown, Raw material 4 (for example melamine resin)
Put in. Then, in the first part forming step of the tableware, as shown in FIG.
As shown in FIG. 3, the press molding machine is operated to mold the first portion 5 of the tableware with the first convex mold 1 and the concave mold 3.

Next, in the raw material charging step of the second portion of the tableware, as shown in FIG. 3, the first convex mold 1 is the second upper mold for molding the second portion 7 of the tableware. The tableware recognition responder 8 is placed on the first portion 5 of the tableware formed in the previous step by replacing the second convex mold 2 with the raw material 6 (eg, melamine resin), and In the second part forming step of the tableware, the second part 7 of the tableware is integrally molded with the first part 5 by embedding the responder 8 (FIG. 4). Then, the concave mold 3 and the convex mold 2 are opened, and the tableware 10 with the tableware recognition responder shown in FIG. 5 is taken out to complete the manufacturing process.

In the above manufacturing process, the transponder 8 is placed on the first part 5 of the tableware already molded in the step of forming the second part of the tableware, and further the raw material 6 is placed thereon. It is formed by molding. Therefore, the responder 8 is the second convex type 2
The first part 5 of the tableware pressed by the raw material 6 between the concave mold 3 and the concave mold 3.
Is molded in a state of being closely adhered to, and is covered with the second portion 7 of the tableware and embedded in the tableware. At that time, the responder 8
Since the dimensions of the concave and convex molds are set so as not to be bent or damaged, it can be enclosed in the bottom of the tableware at a predetermined position.

Further, in the above-mentioned molding, if an existing mold for two-color molding is used, it is not necessary to manufacture a new mold, and tableware can be manufactured in one or two colors.

The tableware 10 with the tableware recognition transponder manufactured in this manner has the transponder 8 which is a sensor for tableware recognition embedded in the bottom of the tableware and does not come into contact with water at the time of use. There is no reaction.

Next, a second embodiment in which the upper mold is concave and the lower mold is convex is shown in FIGS. 6 to 10. In the raw material charging step of the first portion of the tableware, as shown in FIG. 6, the convex mold 3B as the lower mold and the first concave mold 1B as the first upper mold are attached to a press molding machine not shown, and the raw material 4 Is put on the convex mold 3B, the press molding machine is operated in the first part forming step of the tableware shown in FIG. 7, and the first part 5B of the tableware is formed by the first concave mold 1B and the convex mold 3B. . Then, in the raw material feeding step of the second portion of the tableware shown in FIG. 8, the first concave mold 1B is replaced with the second concave mold 2B which is the second upper mold, and the first concave mold 1B of the tableware formed in the previous step is replaced. The tableware recognition responder 8 is placed on the tableware portion 5B, the raw material 6 is put thereon, and the tableware first portion 5B and the tableware portion 7B are subjected to the tableware second portion forming step shown in FIG.
The transponder 8 is embedded by and and molded integrally. And FIG.
The tableware 10B including the tableware recognition responder shown in 0 is completed.

In the first embodiment described above, the first portion 5 constitutes the lower side of the tableware and the second portion 7 constitutes the upper side of the tableware. 5 may consist of part of the bottom of the tableware. Examples thereof are shown in FIGS. 11 to 14.

First, the raw material 4 is put into the first concave mold 13 which is the first lower mold (FIG. 11), and the first concave mold 13 and the first convex mold 11 which is the first upper mold are used to make the first 5A (FIG. 12), and then, in the second concave mold 3A which is the second lower mold, the first part 5A molded in the previous step and the responder 8 are superposed thereon. Place it, put the raw material 6 on them (FIG. 13), and embed the responder 8 with the second concave mold 3A and the second convex mold 2A that is the second upper mold to embed the first portion. The second portion 7A is molded integrally with 5A (FIG. 14).

[0023]

According to the present invention, the following excellent effects are exhibited.

(1) The existing two-color molding die can be used for molding, and the color of the tableware may be one or two.

(2) Only one molding heating is required for a heat-sensitive responder.

(3) It is not necessary to mold the transponder-embedded piece separately, and the manufacturing process is simple.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a mold showing a raw material charging step of a first portion of tableware according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a mold showing a molding process of a first portion of the tableware of the first embodiment.

FIG. 3 is a cross-sectional view of a mold showing a raw material charging step of a second portion of the tableware of the first embodiment.

FIG. 4 is a cross-sectional view of a mold showing a molding process of the second portion of the tableware of the first embodiment.

FIG. 5 is a cross-sectional view showing tableware with a tableware recognition responder according to the first embodiment.

FIG. 6 is a cross-sectional view of a mold showing a raw material charging step of the first portion of the tableware according to the second embodiment of the present invention.

FIG. 7 is a sectional view of a mold showing a molding process of a first portion of the tableware of the second embodiment.

FIG. 8 is a sectional view of a mold showing a raw material charging step of a second portion of the tableware of the second embodiment.

FIG. 9 is a sectional view of a mold showing a molding step of a second portion of the tableware of the second embodiment.

FIG. 10 is a cross-sectional view showing tableware with a tableware recognition responder according to a second embodiment.

FIG. 11 is a cross-sectional view of a mold showing a raw material charging step of the first portion of the tableware according to the third embodiment of the present invention.

FIG. 12 is a cross-sectional view of a mold showing a molding step of the first portion of the tableware of the third embodiment.

FIG. 13 is a cross-sectional view of a mold showing a raw material charging step of the second portion of the tableware of the third embodiment.

FIG. 14 is a sectional view of a mold showing a molding process of the second portion of the tableware of the third embodiment.

[Explanation of symbols]

 1, 11 ... First convex mold 2, 2A ... Second convex mold 3B ... Convex mold 3 ... Recessed mold 13, 1B ... First concave mold 3A, 2B ... Second concave type 4 ... Raw material 5, 5A, 5B ... First portion of tableware 6 ... Raw material 7, 7A, 7B ... Second portion of tableware 8 ... Responder 10, 10B ... Tableware with tableware recognition responder

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location // B29K 105: 20 B29L 31:44

Claims (4)

[Claims] 1. A lower mold for molding tableware containing a tableware recognition responder and two first and second upper molds are prepared, and a raw material for molding the first part of the tableware is put into the lower mold, Molding the first part of the tableware with one upper mold and the lower mold, then replacing the first upper mold with the second upper mold and over the first part of the molded tableware in the lower mold The transponder is placed on the transponder, the raw material for molding the second part of the tableware is put on the transponder, and the second part of the tableware is integrally molded with the first part to embed the transponder. A method for producing tableware including a tableware recognition responder, comprising: 2. A first and a second set of a lower mold and an upper mold for molding tableware with a tableware recognition responder are prepared, and a raw material for molding a first portion of the tableware is put into the first lower mold. Molding a first portion of the tableware with a first upper mold and a first lower mold, then overlaying the responder on top of the molded dish first portion in a second lower mold Tableware, characterized in that the raw material for molding the second part of the tableware is placed on them and the second part of the tableware is molded by embedding the transponder integrally with the first part. Manufacturing method of tableware with recognition responder. 3. The raw material of the first part of the tableware and the raw material of the second part of the tableware are different in color from each other.
Alternatively, the method of manufacturing tableware with a tableware recognition responder according to claim 2. 4. The tableware recognizing and responding tableware manufacturing method according to any one of claims 1 to 3, wherein the transponder uses a plate-shaped electromagnetic wave resonator.