JP2009269094A - Method and system of manufacturing ground article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a system of manufacturing a ground article capable of reducing an amount of waste sludge. <P>SOLUTION: The manufacturing method of the ground article 60 includes a preparatory grinding step of chamfering an object 50 to be ground by scrubbing the object 50 in a grinding container 21 in the presence of a shock-absorbing medium 51 to make the article 60, and a recycling step of mixing the sludge 54 generated during the preparatory grinding step with a worn shock-absorbing medium 53 comprising the worn medium 51 into a lump to recycle a shock-absorbing medium 55, wherein the preparatory grinding step and the recycling step are successively repeated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a manufacturing method and a manufacturing system for an article to be polished, and more particularly to a manufacturing method and a manufacturing system for a glass product for pressing.

Conventionally, polishing has been widely used as a technique for deforming a material into a desired shape. For example, an optical element such as a lens is manufactured by cutting, grinding, and polishing a glass block to produce a glass square having a size close to that of the lens, chamfering the glass square, and then press molding (patent) Reference 1).
Japanese Patent Laid-Open No. 2001-19446

  However, during cutting, grinding, and polishing, a large amount of sludge from which the material, cushioning material, and the like have been removed is generated. Such sludge is not only very expensive to process, but may also adversely affect the external environment.

  This invention is made | formed in view of the above situation, and it aims at providing the manufacturing method and manufacturing system of the to-be-polished goods which can reduce the discard amount of sludge.

  The inventor has found that sludge generated by polishing or the like can be used as a buffer material, and has completed the present invention. Specifically, the present invention provides the following.

(1) A preliminary polishing step of chamfering the polishing object by rubbing the polishing object in the presence of a cushioning material in a polishing container to produce an object to be polished;
A regeneration step of regenerating the buffer material by agglomerating sludge generated in the preliminary polishing step,
A method for manufacturing an article to be polished, wherein the preliminary polishing step and the regeneration step are sequentially repeated.

  (2) The manufacturing method according to (1), wherein abrasive grains are used in combination with the cushioning material.

  (3) In the regeneration step, the buffer material is regenerated by mixing and granulating the sludge generated in the preliminary polishing step and the consumable buffer material consumed by the buffer material (1) or (2) Production method.

(4) The method further comprises a classification step of classifying the consumable cushioning material into a plurality of consumable classes based on the degree of consumable,
(3) The manufacturing method according to (3), wherein in the regeneration step, the cushioning material is regenerated using a consumable cushioning material belonging to any one of the consumption classes.

  (5) The production method according to (4), wherein the degree of consumption is a particle size and / or mass of the consumption buffer material.

  (6) The manufacturing method according to (4) or (5), wherein the low-consumption buffer material belonging to the low-consumption class having a low degree of consumption is reused in the preliminary polishing step without going through the regeneration step.

(7) Before the preliminary polishing step, the polishing target preparation step of preparing the polishing target by cutting, grinding, and / or cutting the base material,
The manufacturing method according to any one of (1) to (6), wherein the sludge generated in the polishing object manufacturing step is further mixed in the regeneration step.

(8) There is further provided a sludge recovery step of recovering waste liquid containing sludge by washing the inside of the polishing container after the preliminary polishing step with a cleaning liquid, and obtaining powdery sludge by separating from the waste liquid and drying. And
In the regeneration step, the agglomeration is promoted by spraying a predetermined liquid using the powdery sludge, the manufacturing method according to any one of (1) to (7).

  (9) The manufacturing method according to (8), wherein the predetermined liquid includes waste water in which sludge is separated from the waste liquid.

  (10) A method for manufacturing an optical element, wherein the glass product for press manufactured using a glass square material as the polishing object in the manufacturing method according to any one of (1) to (9) is reheat pressed.

  (11) A method for manufacturing an optical apparatus using the optical element manufactured by the manufacturing method according to (10).

(12) Pre-polishing means for chamfering the object to be polished by rubbing the object to be polished in a polishing container in the presence of a buffer material to produce an object to be polished;
A system for manufacturing an article to be polished, comprising: regeneration means for regenerating the buffer material by agglomerating sludge generated by the preliminary polishing means.

  (13) The manufacturing system according to (12), further including a regeneration supply unit that supplies the buffer material regenerated by the regeneration unit to the polishing container.

  (14) The manufacturing system according to (12) or (13), further comprising an abrasive supply means for supplying abrasive to the polishing container.

  (15) The regeneration unit regenerates the buffer material by mixing and granulating the sludge generated by the preliminary polishing unit and the consumable buffer material consumed by the buffer material, and any one of (12) to (14) The described manufacturing system.

(16) It further comprises classification means for classifying the consumable cushioning material into a plurality of consumable classes based on the degree of consumption,
The production system according to (15), wherein a consumable cushioning material belonging to any one consumable class is input to the regeneration means.

  (17) The manufacturing system according to (16), wherein the classification unit includes a determination unit that determines the degree of consumption according to the particle size and / or mass of the consumable buffer material.

  (18) The manufacturing system according to (16) or (17), further including a bypass unit that bypasses the regeneration unit and transports the low-consumption buffer material belonging to the low-consumption class having a low level of consumption to the polishing container.

(19) It further comprises a polishing object preparation means for preparing the polishing object by cutting, grinding, and / or cutting the base material,
The production system according to any one of (12) to (18), wherein sludge generated from the polishing object preparation means is further introduced into and mixed with the regeneration means.

(20) Sludge recovery means for recovering waste liquid containing sludge by cleaning the inside of the polishing container with a cleaning liquid, and obtaining powdery sludge by separating from the waste liquid and drying;
A charging means for charging the powdery sludge into the regeneration means;
The manufacturing system according to any one of (12) to (19), further comprising spraying means for promoting agglomeration by spraying a predetermined liquid on the regeneration means.

  (21) The manufacturing system according to (20), further comprising waste water supply means for supplying the spray means with waste water from which sludge is separated from the waste liquid.

  (22) The manufacturing system according to any one of (12) to (21), and a press unit that reheat presses an object to be polished manufactured by the manufacturing system, wherein the manufacturing system uses a glass corner as the object to be polished. Optical element manufacturing apparatus to be used.

  (23) An optical device manufacturing apparatus including the optical element manufacturing apparatus according to (22).

  According to the present invention, the sludge generated in the preliminary polishing process is consumed for the regeneration of the buffer material, and the regenerated buffer material is reused in the preliminary polishing process. Since such a cycle is sequentially repeated, the amount of sludge discarded can be reduced, and the necessary amount of new cushioning material accompanying consumption of the cushioning material can be reduced, thereby reducing the manufacturing cost.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[Production system for polished products]
FIG. 1 is a block diagram of a manufacturing system 10 for an article to be polished according to the present embodiment. The manufacturing system 10 includes a preliminary polishing unit 20 as preliminary polishing means and a regenerating means (not shown).

(Pre-polishing part)
The preliminary polishing unit 20 includes a polishing container 21, and an article 60 to be polished is produced in the polishing container 21. In the present embodiment, the polishing container 21 is a conventionally known barrel polishing apparatus, and a protrusion having a built-in vibration source is provided in the center of the polishing container 21. When the vibration source is operated in a state where the polishing object 50 and the buffer material 51 coexist in the polishing container 21, the polishing object 50 and the buffer material 51 vibrate and flow. As a result, the polishing object 50 is rubbed with the buffer material 51, or the polishing object 50 and abrasive grains 52, which will be described later, are rubbed together to be chamfered to produce the polished article 60.

  The object to be polished 50 in this embodiment is a glass square or a round bar cut product, etc., and an article to be polished 60 obtained by using such a glass square is reheat-pressed by a pressing means of an optical element manufacturing apparatus (not shown) to form a lens. It becomes an optical element. Since the object to be polished 60 is chamfered and the corner portion is lost, a situation in which the corner portion is crystallized at the time of reheating press is suppressed, and the yield can be improved. Moreover, the above optical element is useful for the production of optical equipment. In addition, the grinding | polishing object 50 may consist of various raw materials, such as a ceramic, a metal, glass, glass ceramic, and the shape is not specifically limited.

  The buffer material 51 is preferably softer than the polishing object 50 in order to suppress damage due to collision between the polishing objects 50, and the composition of the buffer material 51 is not particularly limited as long as this condition is satisfied. For this reason, the buffer material 55 described later can be reused although its composition is different from that of the buffer material 51.

  The manufacturing system 10 of this embodiment further includes an abrasive grain supply unit (not shown), and the abrasive grains 52 are supplied to the polishing container 21 by the abrasive grain supply unit. As a result, the polishing object 50 is efficiently polished by the abrasive grains 52. The composition of the abrasive grains 52 is not particularly limited, but it is preferable that the abrasive grains 52 are appropriately harder than the object to be polished 50 in order to improve the polishing efficiency. Such abrasive grains 52 are not particularly limited, but are usually silicon carbide, diamond particles and the like.

  On the other hand, materials other than the article to be polished 60 are also collected from the polishing container 21. The recovered material includes a consumable cushioning material 53 consumed by the cushioning material 51 and a sludge 54. The sludge 54 contains a large amount of small fragments 541 of the polishing object 50, powdered cushioning material, abrasive grains 52, and the like. Included. Then, the sludge 54 and the consumable buffer material 53 are mixed and agglomerated by the regenerating means, whereby the buffer material 55 is regenerated.

  The manufacturing system 10 of the present embodiment further includes a classifying unit (not shown), and classifies the consumable cushioning material 53 into a plurality of consumable classes based on the degree of consumption. In the present embodiment, a determination unit (not shown) determines the degree of consumption according to the particle size and / or mass of the consumable buffer material 53, and the consumable buffer material 53 is a highly consumable buffer material in descending order of consumption. 531, medium wear buffer material 532, and low wear buffer material 533. However, the degree of wear is not limited only to the particle size and mass of the wear buffer material 53.

  The regeneration means is supplied separately for each of the consumption buffer materials belonging to any one of the consumption classes, that is, the high-consumption buffer material 531, the medium-consumption buffer material 532, and the low-consumption buffer material 533 (which will be described later). Thus, the low-consumption buffer 533 is not put into the regenerating means). Thereby, the quality (for example, particle diameter, mass, hardness) of the buffer material 55 obtained from the same lot is homogenized.

  In the present embodiment, a bypass unit (not shown) transports the low-consumption buffer material 533 belonging to the low-consumption class with a low degree of consumption to the polishing container 21 by bypassing the regeneration unit. Since the low-consumption buffer material 533 has a low degree of consumption, the low-consumption buffer material 533 can be polished with substantially the same efficiency as the regenerated buffer material 55, and on the other hand, the cost and time for performing the regeneration process on the low-consumption buffer material 533 Reduced.

  The range of the low consumption class may be appropriately set in consideration of the cost and time for performing the regeneration process, the lower limit of the allowable wear efficiency, and the size of the object 50 to be polished. That is, if the range of the low consumption class is expanded, the cost and time for performing the regeneration process are reduced. However, the wear efficiency of the polishing object 50 is reduced, while if the range of the low consumption class is narrowed, the cost for performing the regeneration process and Although the time increases, the wear efficiency of the polishing object 50 increases.

(Reproduction means)
The regeneration means is not particularly limited as long as it can mix and agglomerate a plurality of components, and may be a conventionally known granulator (for example, a rotary barrel type). In this case, a granulated body is formed in which a consumable cushioning material 53 of a predetermined size is used as a core and sludge is coated around it. The hardness of the cushioning material 55 can be adjusted by the amount of sludge used, the amount of liquid added, and the water content of the consumable cushioning material 5 serving as a core. That is, when the water content is increased, the sludge tends to adhere, so the amount of sludge to be coated increases. However, if the water content becomes excessive, the coated granulated material becomes clay-like and sticks to the device of the regeneration means, or the granulated materials adhere to each other and it is difficult to form a granulated material of a desired size. It should be noted that. The sludge agglomeration is not particularly limited to a known granulation method as long as it is a method of making a lump from powder.

  The manufacturing system 10 of this embodiment includes sludge collection means (not shown), and this sludge collection means collects the waste liquid containing sludge in the waste liquid tank 25 by washing the inside of the polishing container 21 with the washing liquid. The sludge 54 is separated from the waste liquid by, for example, a filter press. However, when the pellet-shaped sludge 54 is put into the regenerating means, the mixing with the consumable buffer material 53 tends to be uneven. Therefore, the sludge 54 is dried to obtain a powdery sludge, and the powdery sludge is thrown into the regenerating means by a feeding means (not shown). When the predetermined liquid is sprayed onto the regenerating means by the spraying means, the powdery sludge is likely to adhere to the consumable cushioning material 53, and thus agglomeration is promoted.

The predetermined liquid is not particularly limited as long as it can easily adhere powdered sludge to the consumable cushioning material 53, and may be water. However, since a large amount of waste water remains when the sludge is separated from the waste liquid, it is preferable to spray the waste water by a waste water supply means (not shown). As a result, the amount of waste water discarded is reduced, and sludge that remains slightly in the waste water is also used for the regeneration of the consumable cushioning material.

  The lump formed in this way is then dried and heated to solidify into the buffer material 55. It is preferable that the drying is sufficiently performed by natural drying in that cracks generated in the buffer material 55 can be suppressed. In addition, the heating may be appropriately set according to the physical properties of the polishing object 50 constituting a part of the sludge. For example, when the polishing object 50 is glass, the heating is gradually divided into a plurality of stages from room temperature to high temperature. It is preferable to increase the temperature to In addition, although the buffer material 55 is granulated spherically in this embodiment, it is not restricted to this, You may be the lump of the arbitrary shapes adapted to the shape of desired glass.

  The buffer material 55 is supplied to the polishing container 21 by a recycling supply means (not shown) and reused. In the present embodiment, the cushioning material 55 is supplied to the polishing container 21 that is the generation source, and zero emission of the entire manufacturing system 10 is achieved. However, the present invention is not limited to this, and the polishing container 55 of another manufacturing system is used. It may be supplied.

  In addition, the manufacturing system 10 may further include a polishing target preparation unit (not shown). The polishing target preparation unit cuts, grinds, and / or cuts a base material (for example, a plate material or a bar), and thereby the polishing target 50. Make it. In this embodiment, the grinding | polishing target 50 which is a glass corner | angular material is produced because a grinding | polishing target preparation means cut | disconnects, grinds, and / or polishes a glass block. Then, the sludge generated in this process is put into the regenerating means, mixed with the sludge 54, and can be consumed for producing the buffer material 55. Thereby, the zero emission of the whole process from the original material to the article 60 to be polished can be promoted.

[Production method of polished product]
The procedure of the manufacturing method of the article to be polished using the manufacturing system 10 will be described below.

  First, the polishing object 50 and the buffer material 51 are supplied into the polishing container 21, and the vibration source is operated. Thereby, the polishing object 50 is chamfered by rubbing the polishing object 50 in the polishing container 21 in the presence of the buffer material 51, and the article 60 to be polished is produced (preliminary polishing step). In the present embodiment, the abrasive grains 52 are used in combination with the buffer material 51, thereby improving the polishing efficiency of the polishing object 50.

  The polishing object 50 in the present embodiment is a glass square, and an optical element such as a lens can be manufactured by reheat-pressing an object to be polished 60 obtained using the glass square. Since the object to be polished 60 is chamfered and the corner portion is lost, a situation in which the corner portion is crystallized at the time of reheating press is suppressed, and the yield can be improved. Moreover, it is preferable to manufacture an optical apparatus using said optical element.

  The buffer material 55 is regenerated by mixing and agglomerating the sludge 54 generated in the preliminary polishing step and the consumable buffer material 53 that has consumed the buffer material (regeneration step). The regenerated buffer material 55 is supplied to the polishing container 21 and reused in the preliminary polishing step. Thus, the amount of sludge 54 discarded can be reduced by sequentially repeating the preliminary polishing step and the regeneration step.

  In this embodiment, the inside of the polishing container 21 after the preliminary polishing step is washed with a washing liquid, whereby the waste liquid containing the sludge is recovered into the waste liquid tank 25, and separated from the waste liquid and dried to obtain powdery sludge. (Sludge collection process). In the regeneration step, agglomeration is promoted by spraying a predetermined liquid using powdery sludge. Thereby, powdery sludge adheres to the consumable cushioning material 53 evenly and quickly.

The predetermined liquid is not particularly limited as long as it can easily adhere powdered sludge to the consumable cushioning material 53, and may be water. However, since a large amount of waste water remains when the sludge is separated from the waste liquid, it is preferable to spray a predetermined liquid containing this waste water. As a result, the amount of waste water discarded is reduced, and sludge that remains slightly in the waste water is also used for the regeneration of the consumable cushioning material.

  The lump formed in this way is then dried and heated to solidify into the buffer material 55. It is preferable that the drying is sufficiently performed by natural drying in that cracks generated in the buffer material 55 can be suppressed. In addition, the heating may be appropriately set according to the physical properties of the polishing object 50 that constitutes a part of the sludge. For example, when the polishing object 50 is glass, the temperature is gradually divided into a plurality of stages from room temperature to high temperature. It is preferable to increase the temperature to Specifically, the temperature is first raised from room temperature to about 700 ° C. over about 11 hours, maintained at about 700 ° C. for about 2 hours, raised from 700 ° C. to 860 ° C. over 2.5 hours, and finally 860. The temperature is maintained for 10 hours and then allowed to cool.

  In this embodiment, before the regeneration step, the consumable buffer material 53 is classified into a plurality of consumable classes based on the degree of consumption (particle size and / or mass of the consumable buffer material 53) (classification step). The high-consumption buffer material 531, the medium-consumption buffer material 532, and the low-consumption buffer material 533 that belong to one of the consumption classes are separately input into the reproduction means. However, in this embodiment, the low-consumption buffer material 533 is supplied to the polishing container 21 without undergoing a regeneration process and reused in the preliminary polishing process.

  In the present embodiment, before the preliminary polishing step, the polishing target 50 is manufactured by cutting, grinding, and / or cutting the base material (polishing target manufacturing step), and sludge generated in this step is the polishing container 21. It is mixed with the consumable buffer material 53 and used for forming the buffer material 55. Here, the sludge generated in the polishing object manufacturing process may be used simultaneously with the sludge 54 or may be used separately.

[Function and effect]
According to this embodiment, the following effects can be obtained.

  The sludge 54 generated in the preliminary polishing step is consumed for the regeneration of the buffer material 55 together with the consumable buffer material 53, and the regenerated buffer material 55 is reused in the preliminary polishing step. Since such a cycle is sequentially repeated, the amount of sludge 54 discarded can be reduced, and the necessary amount of the new buffer material 51 accompanying the consumption of the buffer material can be reduced, thereby reducing the manufacturing cost.

  Since the abrasive grains 52 are used in combination with the buffer materials 51 and 55, the polishing efficiency is improved and the manufacturing efficiency can be improved.

  Since the buffer material 55 is regenerated from the high-consumption buffer material 531, the medium-consumption buffer material 532, and the low-consumption buffer material 533 for each consumption class, the regenerated buffer material 55 is homogenized within the lot. For this reason, the quality of the to-be-polished product 60 produced using the regenerated buffer material 55 can be easily controlled.

  The consumable buffer material 53 can be classified by a parameter that can be measured easily and accurately, such as the particle size and / or the mass, and the regenerated buffer material 55 is easily homogenized within the lot. For this reason, the quality of the to-be-polished product 60 produced using the regenerated buffer material 55 can be controlled accurately and more easily.

  Since the cost and time for performing the regeneration process for the low-consumption buffer material 533 are reduced, the manufacturing cost of the article to be polished 60 can be further reduced. In addition, since the low-consumption buffer material 533 to be reused has a low level of consumption, polishing can be performed with substantially the same efficiency without going through a regeneration process.

  Sludge generated in the process of producing the polishing object 50 is also consumed for the regeneration of the buffer material 55. For this reason, the amount of sludge discarded in the entire manufacturing process can be reduced, and zero emission can be further enhanced.

  Since the sludge is removed from the polishing container 21 by washing, the variation in polishing efficiency due to the unintended amount of sludge remaining in the polishing container 21 is suppressed, and the quality of the workpiece 60 can be controlled more accurately. Further, since the sludge discharged from the polishing container 21 by the cleaning is powdered and used for the regeneration process, the sludge is quickly mixed with the consumable buffer material 53, and quickly adhered to the consumable buffer material 53 with a predetermined liquid and agglomerated. Is promoted. Thereby, the homogeneous buffer material 55 can be reproduced | regenerated easily and rapidly.

  The sludge remaining slightly in the waste water from which the sludge 54 has been separated from the waste liquid is also used for the regeneration of the buffer material 55, and the amount of waste water discarded is reduced by the amount consumed, so that zero emission can be further advanced.

  The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention. For example, the transfer, supply, input, and the like of each material shown in FIG. 1 may be performed mechanically or artificially. Moreover, in the said embodiment, although the consumable buffer material was mixed and agglomerated with sludge, as long as sludge is included, it is not restricted to this, The consumable buffer material does not necessarily need to be included.

It is a block diagram of the manufacturing system of this invention.

Explanation of symbols

10 Manufacturing System 20 Pre-polishing part (Pre-polishing means)
25 Waste Liquid Tank 50 Polishing Object 51 Buffer Material 52 Abrasive Grain 53 Consumable Buffer Material 54 Sludge 55 Recycled Buffer Material 60 Polished Product 533 Low Consumable Buffer Material

Claims (23)

Chamfering the object to be polished by rubbing the object to be polished in a polishing container in the presence of a buffer material, and a preliminary polishing step for producing an object to be polished;
A regeneration step of regenerating the buffer material by agglomerating sludge generated in the preliminary polishing step,
A method for manufacturing an article to be polished, wherein the preliminary polishing step and the regeneration step are sequentially repeated.   The manufacturing method of Claim 1 which uses an abrasive grain together with the said buffer material.   The manufacturing method according to claim 1 or 2, wherein in the regeneration step, the buffer material is regenerated by mixing and granulating the sludge generated in the preliminary polishing step and the consumable buffer material consumed by the buffer material. Further comprising a classification step of classifying the consumable cushioning material into a plurality of consumable classes based on the degree of consumable,
The manufacturing method according to claim 3, wherein in the regeneration step, the cushioning material is recycled using a consumable cushioning material belonging to any one of the consumption classes.   The manufacturing method according to claim 4, wherein the degree of consumption is a particle size and / or mass of the consumption buffer material.   The manufacturing method according to claim 4 or 5, wherein the low-consumption buffer material belonging to the low-consumption class having a low degree of consumption is reused in the preliminary polishing step without passing through the regeneration step. Before the preliminary polishing step, it has a polishing object preparation step of preparing the polishing object by cutting, grinding, and / or cutting the base material,
The manufacturing method according to any one of claims 1 to 6, wherein in the regeneration step, sludge generated in the polishing object manufacturing step is further mixed. By further cleaning the interior of the polishing container after the preliminary polishing step with a cleaning liquid, the waste liquid containing sludge is recovered, and after separating and drying from the waste liquid, a sludge recovery step of obtaining a powdery sludge is further provided.
The manufacturing method according to any one of claims 1 to 7, wherein in the regeneration step, the powdery sludge is used and spraying a predetermined liquid to promote agglomeration.   The manufacturing method according to claim 8, wherein the predetermined liquid includes waste water in which sludge is separated from the waste liquid.   The manufacturing method of the optical element which reheat presses the glass product for press manufactured using the glass square material as the said grinding | polishing object in the manufacturing method in any one of Claim 1 to 9.   The manufacturing method of the optical instrument using the optical element manufactured with the manufacturing method of Claim 10. Chamfering the polishing object by rubbing the object to be polished in the polishing container in the presence of a buffer material, pre-polishing means for producing an article to be polished;
A system for manufacturing an article to be polished, comprising: regeneration means for regenerating the buffer material by agglomerating sludge generated by the preliminary polishing means.   The manufacturing system according to claim 12, further comprising a regenerated buffer material supply unit that supplies the buffer material regenerated by the regenerating unit to the polishing container.   The manufacturing system of Claim 12 or 13 further provided with the abrasive grain supply means which supplies an abrasive grain to the said grinding | polishing container.   The manufacturing system according to any one of claims 12 to 14, wherein the regenerating unit regenerates the buffer material by mixing and granulating the sludge generated by the preliminary polishing unit and the consumable buffer material consumed by the buffer material. Classifying means for classifying the consumable cushioning material into a plurality of consumable classes based on the degree of consumption,
The manufacturing system according to claim 15, wherein a consumable cushioning material belonging to any one consumable class is input to the regeneration unit.   The manufacturing system according to claim 16, wherein the classification unit includes a determination unit that determines a degree of the consumption according to a particle size and / or a mass of the consumable buffer material.   18. The manufacturing system according to claim 16, further comprising a bypass unit configured to bypass the regeneration unit and transport the low-consumption buffer material belonging to the low consumption class having a low level of consumption to the polishing container. A polishing object preparation means for preparing the polishing object by cutting, grinding, and / or cutting the base material;
The manufacturing system according to any one of claims 12 to 18, wherein sludge generated from the polishing object preparation means is further added to and mixed with the regeneration means. By washing the inside of the polishing container with a washing liquid, a waste liquid containing sludge is recovered, separated from the waste liquid and dried, and then a sludge collecting means for obtaining a powdery sludge,
A charging means for charging the powdery sludge into the regeneration means;
The manufacturing system according to claim 12, further comprising spraying means for promoting agglomeration by spraying a predetermined liquid on the regeneration means.   21. The manufacturing system according to claim 20, further comprising waste water supply means for supplying the spray means with waste water from which sludge is separated from the waste liquid.   An optical element manufacturing apparatus comprising: the manufacturing system according to any one of claims 12 to 21; and a pressing unit that reheat presses an object to be polished manufactured by the manufacturing system, wherein the manufacturing system uses a glass square as the object to be polished. .   An optical device manufacturing apparatus comprising the optical element manufacturing apparatus according to claim 22.

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