JPH0620765B2 - Method and apparatus for manufacturing recycled amber - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a manufacturing method and a manufacturing apparatus for producing large agglomerates of recycled amber by using small pieces of amber and the like generated during processing of amber products.

[Prior Art] Amber is a fossil of a resin mainly of a Pinusaceae plant, and its property is generally amorphous, softening at about 150 to 200 ° C and generating gas at 250 to 300 ° C. Then it discolors and melts, then burns. This is because the volatile gas contained in amber is oxidized by air and discolored. The amber is processed into accessories, figurines, and other ornaments depending on the size, the degree of transparency, the color, and the like.

In general, amber at the time of mining is in the form of a lump covered with a so-called hide, which is a black and white inorganic base material. And when processing this, the skin is removed and the transparent or translucent amber inside is taken out and used.

By the way, depending on the age of fossil, the old part is good in the core part, but the part near the skin is fragile even if it has cracks, and it easily breaks into a shell shape and is separated into small pieces. Such small amber could hardly be commercialized and was not used.

[Problems to be Solved by the Invention] However, since amber is expensive and its resources are limited, there is a strong demand to use small amber that is not used for the above purposes.

Therefore, an object of the present invention is to make it possible to reuse amber, which is small and cannot be used as it is, in a large lump.

[Means for Solving the Problem] The technical means of the present invention for solving such a problem includes (1) the amber powder or granular material contained in the gas or the powder or granular material generated from the powder or granular material. Pre-molding process that pressurizes while exhausting air to perform pre-molding; press-heating process that heats the pre-molded pre-molded product while pressurizing to integrate powder and granules; And a heat removal step of removing heat from the molded body after the step.

(2) In addition, in this manufacturing method, an appropriate amount of powdery or granular unit bodies are sequentially supplied to the mold, and while the supplied unit bodies are continuous with each other, from the previously supplied unit bodies in order from the preforming step. It is a method for producing recycled amber that is moved to a pressure heating step.

Further, the technical means of the present invention include (3) a receiving mold in which the amber powder and granules are placed, a pressing die for pressurizing the powder and granular materials in the receiving mold, and an exhaust unit for exhausting gas and air in the receiving mold. And a heating unit for heating the receiving mold, the apparatus for manufacturing recycled amber.

(4) Also, a cylindrical receiving mold that is installed in the bed and has both ends open and contains amber powder and granules, and a bed that can be moved forwards and backwards in the bed from one end side of the receiving mold to the inside of the receiving mold. A die that is inserted into the die to pressurize the powder and granules in the die, an exhaust unit that is provided in the die to exhaust gas and air in the die, and the inside of the die from the other end of the die supported by the bed. An apparatus for producing recycled amber, comprising: a support die that is inserted into the mold and receives a powder or granular material that is pressed by the die; and a heating unit that is attached to the die to heat the die.

(5) In this device, it is effective that the receiving mold is detachably attached to the bed.

(6) In these devices, it is effective that the receiving-type powder or granular material storage section is expanded toward the other end of the receiving-type.

[Operation] According to this means, in the preforming step, the amber powder is preformed while the gas generated from the powder and the air contained in the powder are exhausted. In the pressurizing and heating step, the pre-molded pre-molded body is softened or melted by heat and pressure, and the powdery particles are bonded or fused to be integrated. In the heat removal step, the integrated molded body is heat-removed, so that it is solidified into a desired shape. This allows
Amber granules are formed into large chunks.

[Embodiment] Hereinafter, a method and an apparatus for manufacturing recycled amber according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show an apparatus for manufacturing recycled amber according to an embodiment of the present invention.

The basic configuration of this manufacturing apparatus is as follows: a bed 1, a cylinder 10 as a receiving mold in which a powder or granular material F produced by crushing amber is placed, and a pressing mold for pressurizing the powder or granular material F in the cylinder 10. The piston 20 includes a support die 30 that receives the powder or granular material F in the cylinder 10, and a heating unit that heats the powder or granular material F in the cylinder 10.

The bed 1 includes a pedestal portion 2 and a plurality of columns 3 standing upright from the pedestal portion 2 (in the embodiment, two columns are provided at the front and rear).
A table 4 fixed to the center of the support column 3 and a head 5 fixed to the upper end of the support column 3.

As shown in FIG. 2, both ends of the cylinder 10 are open, and the cylinder 10 is installed on the table 4 via the support base 12 with one end 10a facing upward. The support base 12 is formed in a cylindrical shape having an opening 13 on the front side, and has a lower end outwardly facing the collar portion 1.
It is fixed to the table 4 at 4. Cylinder 10
Is detachably installed on the support base 12. The installation means connects the outward flange 15 formed on the outside of the other end 10b of the cylinder 10 and the upper end 12a of the support base 12 to form the flange. The bolt 15 is fixed to the upper end 12a of the support base 12 with a bolt 16. Also, the cylinder 10
The powder or granular material storage unit 11 has a columnar cavity, and the other end 10b is formed so as to be slightly expanded toward the other end 10b of the cylinder 10 (for example, an inclination of 1 / 10,000). It constitutes the tapered portion 11a. The inclination is exaggerated in FIG.

The piston 20 is provided on the head 5 of the bed 1 so as to be movable back and forth, and is moved back and forth by a hydraulic device (not shown).
It is inserted from the 0a side into the powder or granular material storage portion 11 of the cylinder 10 to pressurize the powder or granular material F in the powder or granular material storage portion 11. The piston 20 is formed with a suction passage 21 which communicates with the powder and granular material storage portion 11 and sucks and exhausts gas and air in the powder and granular material storage portion 11.
The suction passage 21 is connected to a vacuum device (not shown) via a suction pipe 22.

The support die 30 is composed of a combination of several rods (31 to 38) divided into appropriate dimensions, and its length dimension can be changed by removing the appropriate rods. Number of rods (31-3
5) is formed to have a diameter that can be inserted into the powder or granular material storage portion 11 of the cylinder 10. Further, the rod 38 located at the bottom is placed on the table 4 and supported on the table 4 together with the upper rod so that the uppermost rod 31 receives the granular material F pressurized by the piston 20. It

The heating unit 40 is made of a belt-shaped electric heating body and is wound around the cylinder 10.

Next, a method for manufacturing recycled amber according to an embodiment of the present invention will be described. The manufacturing method according to this embodiment is carried out using the above manufacturing apparatus.

As shown in FIG. 3, the basic structure of the manufacturing method according to the embodiment is that while amber powder F is exhausted from gas generated from the powder F and air contained in the powder F, A pre-forming step I of pressurizing and pre-molding, a press-heating step II of heating the pre-molded pre-formed article while pressurizing it to integrate the powder particles F, and a press-heating step II. And a heat removal step III for removing heat from the integrated molded body.

In the embodiment, an appropriate amount of the unit body Fa obtained by dividing the powder or granular material F required for the product is sequentially supplied to the cylinder 10 as a mold, and the supplied unit bodies Fa are continuously connected to each other,
The unit body Fa supplied first is sequentially transferred from the preforming step I to the pressure heating step II.

Further, as shown in FIG. 4, the temperature of the amber is equal to or lower than the melting point of the amber in the preforming step I and the pressure heating step II, and the amber can be softened, for example, 200 ° C. which is close to the melting point.
Is set to. The applied pressure is 3,000 Kg / cm ^2.
The following pressures are set appropriately.

Next, the manufacturing method according to this embodiment will be described along with the operation of the manufacturing apparatus to which the manufacturing method is applied, according to the flowchart showing the manufacturing process shown in FIG.

In this production, amber powder particles F are prepared in advance. This granular material F is generated in the amber crushing process, and for example, small amber that has cracks or the like and collapsed as a raw material is used, and it is classified by age and color using a well-known crusher, for example. The powder diameter is refined to 1/100 mm or less.

First, the heating unit 40 heats the cylinder 10 (5-
1). In this state, as shown in FIG.
The rod is put in the cylinder 10 of a predetermined length. In this state, the unit body Fa is transferred to the powder or granular material storage unit 1 of the cylinder 10.
1 (5-2), then the piston 20 is advanced to pressurize the unit body Fa in the cylinder 10 (5-3), and suction is performed by the vacuum device.

Then, the supply and pressurization of the unit body Fa is sequentially repeated until the entire amount of the powdery or granular material F is supplied (5-2, 5-
3, 5-4). In this case, if the pressing upper surface of the granular material F is located at a predetermined position on the upper end of the cylinder 10, the appropriate rod of the supporting die 30 is successively removed to secure the storage space for the unit body Fa.

In this manufacturing process, as shown in FIG.
While a is continuous with each other, the previously supplied unit Fa is sequentially transferred from the preforming step I to the pressure heating step II.

That is, as shown in FIG. 6, the unit body Fa is pre-molded by being pressurized while the gas and the air contained therein are being exhausted. In this case, since the cylinder 10 is heated, the inserted unit body Fa comes into contact with the cylinder 10 to be softened, and therefore, the familiarity with the cylinder 10 is improved and the cylinder 10 is easily dropped. The pressure facilitates the bonding of the powder particles F to each other, and since the powder particles F are easily bonded, the gas and air in the powder particles F are well pushed out, and the suction efficiency is improved. As a result, as compared with the case where the powdery or granular material F is supplied without heating the cylinder 10, generation of bubbles or discoloration in the product is prevented. Furthermore, since air is evacuated every time the unit body Fa is supplied,
As compared with the case where air is deflated at one time, the air can be reliably deflated, and the generation of bubbles is reliably prevented.

Further, when the next unit body Fa is sequentially supplied and pressurized, and moves downward, the granular material F is heated at a temperature close to the melting point, so that the softened state progresses, and in this state As they are pressurized, they bond to each other and become almost fused into one.

In this case, as shown in FIG. 6, the temperature of the unit body Fa rises until it reaches a constant temperature. However, since the amount of the unit body Fa is relatively small, the unit body Fa and the unit body placed in the previous position are not used. The heat from Fa is easily transferred immediately. for that reason,
The temperature of the entire unit body Fa rises uniformly, the structural unevenness disappears, and the powder particles in the unit body Fa and the unit bodies Fa are integrated uniformly.

Next, as shown in FIG.
When a predetermined amount is supplied and a molded body S having a predetermined length is formed (5-4), the piston 20 is held in the advanced state and brought into a pressure heating state for a predetermined time, for example, several hours (5-5). ).
As a result, the upper granular material F is also heated at a temperature close to the melting point and progresses in a softened state, and is pressurized in this state, so that they are combined and integrated with each other. Further, since the molded body S is kept in a pressurized and heated state, the entire molded body S is made uniform, so that regenerated amber with high fidelity without discoloration with respect to the raw material can be obtained.

When a predetermined time has passed (5-6), the heating unit 40 is turned off to stop heating, and forced or natural cooling is performed.
The cylinder 10 is cooled (5-7). As a result, the heat removal step III is started, and the molded body S is heat-removed. Next, when the heat is removed for a predetermined time (5-8), the rod of the support die 30 is removed from the cylinder 10 and the bolt 16 is removed to remove the cylinder 10 from the support base 12 of the table 4 (5
-9), heat is removed at another place (5-10). In this case, since the cylinder 10 can be removed and heat can be removed, another cylinder 10 can be installed in the bed 1 during this time to manufacture the next product, and therefore the manufacturing efficiency is greatly improved. .

When a predetermined time has passed (5-11), the product is taken out (5-12). In this case, for example, the molded body S is pushed from one end 10a side of the cylinder 10 and taken out from the other end 10b side. In this case, since the powder or granular material storage portion 11 of the cylinder 10 has the taper portion 11a that widens toward the other end 10b, the powder or granular material storage portion 11 is not easily caught by being caught and is easily removed from the cylinder 10. Be done. Therefore, it is possible to prevent the product or the cylinder 10 from being damaged.

The product manufactured in this way is formed into a cylindrical rod shape, for example, as shown in FIG. Since this product is manufactured without bubbles and discoloration, it is obtained as a large recycled amber which is transparent or translucent, uniform and fragile.

The product is not limited to the above-mentioned shape, and may have an appropriate shape such as a rod shape or a plate shape. Further, in the above-mentioned embodiment, the heating temperature is not limited to the above-mentioned one, and the powder or granular material F may be melted and integrated by heating at a temperature equal to or higher than the melting point, and may be appropriately changed. Further, the pressing force may be set to an appropriate pressure. Further, in the above embodiment, the support mold 30 is configured to change the insertion length by combining a plurality of rods, but the present invention is not limited to this, and for example, a screw or a hydraulic lifting type jack can be used for a long length. It may be configured to adjust the height, and may be appropriately changed. In addition, in the above-described embodiment, the unit bodies are sequentially supplied to the mold to perform the molding, but the present invention is not limited to this, and it is possible to mold the entire amount of the powder or granules at once. Further, the preforming step and the pressurizing and heating step may be performed in different molds, and may be appropriately changed.

[Effects of the Invention] As described above, according to the amber manufacturing method and manufacturing apparatus of the present invention, it is possible to make amber that is small and cannot be used as it is into a large lump with high fidelity to raw materials. Therefore, there is an effect that amber can be effectively used without waste.

In addition, an appropriate amount of powdery or granular unit bodies are sequentially supplied to the mold, and while the supplied unit bodies are continuously connected, the previously supplied unit bodies are sequentially transferred from the preforming step to the pressure heating step. In the case of the above, since the gas and air are exhausted in stages, it is possible to sufficiently remove the gas and air without leaving them, and it is possible to reliably prevent the generation of bubbles and discoloration in the product. Furthermore, since the powder and granules are heated and softened, the powder and granules are easy to drop because they are more compatible with the mold, and the powder and granules are easily bonded to each other by pressing,
As a result, gas and air are efficiently extruded, and in this respect as well, there is an effect that a product having good integration without bubbles can be obtained. Furthermore, since the unit body is small compared to the whole, heat is easily transferred immediately in the process of being pressurized and gas or air is extruded, so that the temperature rises uniformly, Since there is no structural unevenness, the particles can be uniformly integrated with each other.

Further, in the manufacturing apparatus, when the receiving die is opened at both ends and the pressing die and the supporting die are respectively inserted from each end, the supporting die can be taken in and out. It is possible to realize the above-mentioned preforming step of pressurizing to and the pressurizing and heating step, and it is possible to surely prevent generation of bubbles and discoloration of the product.

Furthermore, if the receiving mold is made detachable in the manufacturing apparatus, the next product can be manufactured by using another receiving mold during removal, and therefore the manufacturing efficiency is greatly improved.

Furthermore, the product can be easily taken out from the receiving mold by expanding the receiving container for the powder or granular material toward the other end. Therefore, it is possible to prevent damage to the receiving mold or the product. it can.

[Brief description of drawings]

FIG. 1 is an overall view showing an apparatus for manufacturing recycled amber according to an embodiment of the present invention, and FIG. 2 is a sectional view showing essential parts of the apparatus for manufacturing recycled amber according to the embodiment of the present invention together with their action, and FIG. FIG. 4 is a flow chart showing the basic steps of the method for producing recycled amber according to the embodiment of the present invention, FIG. 4 is a graph showing the temperature state of amber in each step, and FIG. 5 is a process for producing recycled amber according to the example. FIG. 6 is a cross-sectional view of a main part showing the state of the granular material in the regenerated amber manufacturing apparatus according to the embodiment of the present invention, and FIG. 7 is the regenerated amber manufacturing apparatus according to the embodiment of the present invention. FIG. 8 is a sectional view showing the operation, and FIG. 8 is a perspective view showing an example of the product. F …… Powder granules Fa …… Unit body 1 …… Bed 10 …… Cylinder (= receiving type) 11 …… Powder granule storage section 11a …… Taper section 12 …… Supporting base 16 …… Bolt 20 …… Piston (= Stamping die) 21 ... Suction passage (= Exhaust section) 30 ... Supporting die 40 ... Heating section I ... Preforming step II ... Pressurizing and heating step III ... Heat removal step

Claims (6)

[Claims] 1. A preforming step of preforming amber powder or granules by pressurizing while a gas generated from the amber powder or air contained in the powder or granules is exhausted, and the preform molding is performed. Regeneration characterized by comprising a pressure heating step of heating the preform while pressing it to integrate the powder and granules, and a heat removal step of removing heat from the preform after the pressure heating step. Amber manufacturing method. 2. A preforming step of press-molding an amber powder or granule while exhausting gas generated from the agglomerate or air contained in the powder or granule, and a preforming step. A method for producing recycled amber, which comprises a pressure heating step of heating a preform while pressurizing it to integrate powder particles, and a heat removal step of removing heat from the preform after the pressure heating step. Therefore, an appropriate amount of powdery or granular units are sequentially supplied to the mold, and while the supplied units are continuously connected, the previously supplied units are sequentially transferred from the preforming step to the pressure heating step. A method for producing recycled amber characterized by the above. 3. A receiving mold in which the amber powder is put, a pressing mold for pressurizing the powder inside the receiving mold, an exhaust unit for exhausting gas and air in the receiving mold, and heating for heating the receiving mold. Manufacturing equipment for recycled amber with a part. 4. A cylindrical receiving mold which is installed in a bed and has both ends open and into which amber powder is put, and a receiving mold which is provided so as to be capable of advancing and retreating to the bed and which moves from one end of the receiving mold into the receiving mold. A die that is inserted into the die to pressurize the powder and granules in the die, an exhaust unit that is provided in the die to exhaust gas and air in the die, and the inside of the die from the other end of the die supported by the bed. A supporting die which is inserted into the receiving die and receives the granular material which is pressed by the die.
An apparatus for manufacturing recycled amber, comprising: a heating unit attached to the receiving mold to heat the receiving mold. 5. The apparatus for manufacturing recycled amber according to claim 4, wherein the receiving mold is installed detachably on the bed. 6. The apparatus for producing recycled amber according to claim 4 or 5, wherein the receiving-type powdery or granular material storage section is expanded toward the other end of the receiving-type.