WO2015037488A1

WO2015037488A1 - Glass-moulded-body production apparatus

Info

Publication number: WO2015037488A1
Application number: PCT/JP2014/073157
Authority: WO
Inventors: 藤本　忠幸
Original assignee: Hoya株式会社
Priority date: 2013-09-10
Filing date: 2014-09-03
Publication date: 2015-03-19
Also published as: TW201527230A; JP2015054788A; KR20160048723A; CN105377775A; TWI568690B

Abstract

Provided is a glass-moulded-body production apparatus with which total processing time can be shortened, and productivity can be improved, while minimizing the increase in cost. This glass-moulded-body production apparatus (1) is provided with: first to third heating units (74, 76, 78) for heating moulding dies (60); first and second pressing units (80, 81) for pressing the heated moulding dies; first to third cooling units (82, 84, 86) for cooling the pressed moulding dies (60); fourth and fifth conveyance arms (96, 98) which are provided so as to correspond respectively to the first and second pressing units (80, 81), and which convey the moulding dies (60) from the third heating unit (78) to the first and second pressing units (80, 81) respectively; and sixth and seventh conveyance arms (100, 102) which are provided so as to correspond respectively to the first and second pressing units (80, 81), and which convey the moulding dies (60) to the first cooling unit (82) from the first and second pressing units (80, 81) respectively.

Description

Glass molding production equipment

The present invention relates to an apparatus for manufacturing a glass molded body, and in particular, a glass molded body including a heating unit that heat-processes a mold, a press unit that presses the mold, and a cooling unit that cools the mold. It relates to a manufacturing apparatus.

A heating unit, a press unit, and a cooling unit (slow cooling unit) arranged from the upstream to the downstream of the linear conveyance path are provided, and the processing unit is heated and pressed in each processing unit while moving the molding die downstream. An apparatus for forming glass by performing each treatment of cooling (slow cooling) is widely used (see Japanese Patent Application Laid-Open No. 2003-25100).

JP 2003-25100 A

The press process takes longer than other processes. In particular, when a configuration such as the press molding apparatus described in Patent Document 1 (Japanese Patent Laid-Open No. 2003-25100) is adopted, the time interval for transporting the molding die downstream is the one with the longest processing time. To match. Specifically, since the process with the longest processing time is a press process, the time interval for conveying the molding die downstream cannot be made shorter than the processing time of the press processing unit. For this reason, although the processing time concerning the heat processing in a heating part and the slow cooling process in a cooling part is short compared with a press process, the whole processing time cannot be shortened and productivity cannot be improved. There's a problem. In order to improve productivity, it is conceivable to use a plurality of press forming apparatuses. However, if such a configuration is used, molds corresponding to the total number of processing chambers are required for each press forming apparatus, which increases costs. There is a problem.

In view of such a problem, an object of the present invention is to provide an apparatus for manufacturing a glass molded body capable of reducing the total processing time and minimizing the increase in cost and improving the productivity.

The manufacturing apparatus for the glass molded body of the present invention includes a heating unit that heat-treats a mold having a glass material disposed therein, a plurality of press units that press-process the mold that is heat-treated in the heating unit, and a plurality of press units A plurality of press sections that are provided corresponding to each of the plurality of press sections and that conveys the molds from the heating section to each of the plurality of press sections. A mechanism, and a plurality of press part unloading mechanisms provided corresponding to each of the plurality of press parts and transporting a forming die from each of the plurality of press parts to the cooling part.

According to the present invention, the mold continuously conveyed from the heating unit can be sequentially conveyed to the plurality of press units, and the press processing can be performed in parallel in the plurality of press units. Thereby, without changing the time interval for conveying the molding die downstream, the time for pressing the molding die in each press unit is made longer than the time for performing the heating treatment or cooling processing in the heating unit or cooling unit. Can do. For this reason, productivity of a manufacturing apparatus can be improved. Furthermore, according to the present invention, since only the number of press sections is increased as compared with the conventional apparatus, an increase in the manufacturing cost of the apparatus can be minimized.

According to the present invention, it is possible to provide a glass molded body manufacturing apparatus capable of reducing the total processing time while minimizing the increase in cost and improving the productivity.

It is a vertical sectional view showing the configuration of the lens molded body manufacturing apparatus of the first embodiment. It is a horizontal sectional view showing the composition of the manufacturing device of the lens fabrication object of a 1st embodiment. It is a figure for demonstrating the movement of the molded object in the manufacturing apparatus of the glass molded object of 1st Embodiment. It is a graph which shows in time series the temperature of the glass material which paid its attention to the glass material in a specific shaping | molding die, and the pressurized pressure in the manufacturing apparatus of the glass molded object of 1st Embodiment. It is a horizontal sectional view showing the manufacturing device of the glass fabrication object of a 2nd embodiment. It is a figure for demonstrating the movement of the molded object in the manufacturing apparatus of the glass molded object of 2nd Embodiment. It is a graph which shows in time series the temperature of the glass material which paid its attention to the glass material in a specific shaping | molding die, and the pressurized pressure in the manufacturing apparatus of the glass molded object of 2nd Embodiment.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent part in a figure, and the description is not repeated.
FIG. 1 is a vertical sectional view showing the configuration of the lens molded body manufacturing apparatus of the first embodiment, and FIG. 2 is a horizontal sectional view showing the configuration of the lens molded body manufacturing apparatus of the first embodiment.
As shown in FIGS. 1 and 2, the lens molded body manufacturing apparatus 1 of the first embodiment includes a chamber 2 formed in a substantially rectangular parallelepiped shape, and a plurality of

stages

4, 6 provided at the bottom of the chamber 2. 8, 10, 11, 12, 14, 16 and

pistons

24, 26, 28, 30, 31, 32, 34 provided above each

stage

4, 6, 8, 10, 11, 12, 14, 16 , 36, and

piston heads

44, 46 provided at the tips of the

rods

24A, 26A, 28A, 30A, 31A, 32A, 34A, 36A of the

pistons

24, 26, 28, 30, 31, 32, 34, 36, 48, 50, 51, 52, 54, 56, and transfer

arms

90, 92, 94, 96, 98, 100, 102, 104, 106, 108.

In the lens molded body manufacturing apparatus 1 according to the present embodiment, the mold 60 containing the glass material is transported by the transport arm from the right side to the left side in FIGS. As shown in FIG. 2, the first to

third stages

4, 6, 8 and the fifth to

seventh stages

12, 14, 16 in the transport direction are arranged on a straight line. And in the manufacturing apparatus 1 of this embodiment, the two

stages

10 and 11 adjacent to the direction orthogonal to a conveyance direction are arrange | positioned as a 4th stage. These

fourth stages

10 and 11 are provided by being shifted laterally by an equal distance from the first to

third stages

4, 6, 8 and the fifth to

seventh stages

12, 14, 16 in the transport direction. It has been.

In the glass molded body manufacturing apparatus 1 of the present embodiment, the first to third heating steps for heating the mold on the first to

third stages

4, 6, and 8 in the transport direction are performed, and the second 2 In any one of the

stages

10 and 11, a pressing step is performed to press the molding die, and the first to third gradual coolings that gradually cool the molding die on the fifth to eighth 12, 12, 16 are performed. Steps are performed.

That is, the first to

third stages

4, 6, 8, the

pistons

24, 26, 28 and the

piston heads

44, 46, 48 in the transport direction constitute first to

third heating units

74, 76, 78. Further, the

fourth stages

10 and 11, the

pistons

30 and 31, and the

piston heads

50 and 51 in the transport direction constitute first and

second press units

80 and 81. In addition, the fifth to

seventh stages

12, 14, 16

pistons

32, 34, 36 and the

piston heads

52, 54, 56 in the transport direction include first to third cooling units (gradual cooling units) 82, 84, 86. Configure.

Openings are formed on both side surfaces of the chamber 2, and

shutters

2A and 2B that can be opened and closed in the vertical direction are provided in these openings. Below each

opening

2A, 2B on the outer peripheral surface of the chamber 2, an inlet stage 3 on which a molding die 60 containing a new glass material is placed, and a molding die containing a glass molded body that has been molded are accommodated. An exit stage 17 from which 60 is unloaded is provided. In addition, inlets 2C and 2D are provided on both upper sides of the chamber 2, and an inert gas is supplied from the outside through the inlets 2C and 2D. As a result, the internal space of the chamber 2 is an inert gas atmosphere. As the inert gas, nitrogen, argon, or the like is used, and the oxygen concentration is preferably 5 ppm or less. In addition, by making the internal space an inert gas atmosphere in this way, oxidation of the mold 60 and surface alteration of the glass material can be prevented.

The

heaters

4A, 6A, 8A, 10A, 11A, 12A, 14A, and 16A are incorporated in the

stages

4, 6, 8, 10, 11, 12, 14, and 16, respectively. In addition,

heaters

44A, 46A, 48A, 50A, 51A, 52A, 54A, and 56A are incorporated in the

piston heads

44, 46, 48, 50, 51, 52, 54, and 56, respectively. The

heaters

4A, 6A, 8A, 10A, 11A, 12A, 14A, 16A of the

respective stages

4, 6, 8, 10, 11, 12, 14, 16 and the

piston heads

44, 46, 48, 50, 51, 52 , 54, 56

heaters

44A, 46A, 48A, 50A, 51A, 52A, 54A, 56A are respectively heated by the first to

third heating sections

74, 76, 78, and the first and second heaters. The temperature is set to a temperature suitable for the press process performed in the

press units

80 and 81 and the cooling (slow cooling) process performed in the first to third

slow cooling units

82, 84 and 86.

The mold 60 includes an upper mold 62 and a lower mold 64 having molding surfaces formed in accordance with the shape of the glass molded body to be manufactured, and a cylinder that regulates the mutual positions of the upper mold 62 and the lower mold 64 in the radial direction. And a mold 66. A release film is formed on the molding surfaces of the upper mold 62 and the lower mold 64. The glass material 66 is disposed in a state of being sandwiched between the upper mold 62 and the lower mold 64. In a state where the glass material 66 is heated to the glass yield point temperature or higher, by pressing the upper and

lower molds

62 and 64 in a relatively close direction, the shape of the molding surface is transferred to the glass material, and a glass molded body having a desired shape (Optical element) can be press-molded.

The

transfer arms

90, 92, 94, 96, 98, 100, 102, 104, 106, 108 transfer the mold 60 between adjacent stages. That is, the first transport arm 90 transports the molding die 60 from the entrance stage 3 to the stage 4 constituting the first heating unit 74. The second transport arm 92 transports the mold 60 from the stage 4 constituting the first heating unit 74 to the stage 6 constituting the second heating unit 76. The third transfer arm 94 transfers the mold 60 from the stage 6 constituting the second heating unit 76 to the stage 8 constituting the third heating unit 78.

The fourth transfer arm 96 transfers the mold 60 from the stage 8 constituting the third heating unit 78 to the stage 10 constituting the first press unit 80. The fifth transport arm 98 transports the mold 60 from the stage 8 constituting the third heating unit 78 to the stage 11 constituting the second press unit 81. And these 4th and

5th conveyance arms

96 and 98 each comprise a press part carrying-in mechanism.

The sixth transport arm 100 transports the mold 60 from the stage 10 constituting the first press unit 80 to the stage 12 constituting the first slow cooling unit 82. The seventh transport arm 102 transports the mold 60 from the stage 11 constituting the second press part 81 to the stage 12 constituting the first slow cooling part 82. And these 6th and

7th conveyance arms

100 and 102 comprise a press part carrying-out mechanism.

8th conveyance arm 104 conveys the shaping | molding die 60 from the stage 12 which comprises the 1st slow cooling part 82 to the stage 14 which comprises the 2nd slow cooling part 84. As shown in FIG. The ninth transport arm 106 transports the mold 60 from the stage 14 constituting the second slow cooling portion 84 to the stage 16 constituting the third slow cooling portion 86. The 10th conveyance arm 108 conveys the shaping | molding die 60 from the stage 16 which comprises the 3rd slow cooling part 86 to the exit stage 17. FIG.

These first to third transfer

arms

90, 92 and 94, and the eighth to

tenth transfer arms

104, 106 and 108 are driven in synchronism with each other at a predetermined tact time, and between adjacent stages. The mold 60 is moved.

On the other hand, the fourth and

fifth transfer arms

96 and 98 are driven alternately every predetermined tact time. That is, the fourth and

fifth transfer arms

96 and 98 are driven every time twice the tact time.

Further, the sixth and

seventh transfer arms

100 and 102 are driven in synchronization with the fourth and

fifth transfer arms

96 and 98, respectively. For this reason, the sixth and

seventh transfer arms

100 and 102 are also driven alternately every predetermined tact time.

Hereinafter, the manufacturing method of the glass molded object using the manufacturing apparatus 1 of the glass molded object demonstrated above is demonstrated. Drawing 3 is a figure for explaining movement of a forming object in manufacturing device 1 of a glass forming object of a 1st embodiment. Moreover, FIG. 4 is a graph which shows in time series the temperature of the glass material which paid its attention to the glass material in a specific shaping | molding die in the manufacturing apparatus of the glass forming body of 1st Embodiment, and the pressurized pressure. In FIG. 3 and the following description, in order to distinguish a plurality of molds 60, the molds A, B,...

First, the mold A in which a new glass material 68 is housed is placed on the entrance stage 3.
When a predetermined tact time elapses, the

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92 and 94, the fifth and

seventh transfer arms

98 and 102, and the eighth transfer arm. The

tenth transfer arm

104, 106, 108 is activated. As a result, as shown in FIG. 3A, the mold A placed on the entrance stage 3 by the first transfer arm 90 is moved onto the stage 4 constituting the first heating unit 74. (First moving step).

When the mold A is moved onto the stage 4 of the first heating unit 74, the piston 24 extends the rod 24A. As a result, the piston head 44 descends and comes into contact with the upper surface of the mold A. In this manner, the mold A is sandwiched between the piston head 44 and the stage 4 and is heated to 200 ° C. by the heater 4A incorporated in the stage 4 and the heater 44A incorporated in the piston head 44 as shown in FIG. Heated to above. The rod 24A returns to the contracted state when a predetermined time shorter than the tact time has elapsed from the start of expansion (first heating step).
In parallel with this, the mold B in which the new glass material 68 is housed is placed on the entrance stage 3.

When a predetermined tact time has elapsed since the previous activation of the transfer arm, the

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92 and 94, the fourth and

sixth transfer arms

96, 100 and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3B, the mold A placed on the stage 4 of the first heating unit 74 constitutes the second heating unit 76 by the second transfer arm 92. It is moved onto the stage 6 (second movement step). At the same time, the first moving step is performed on the mold B.

When the mold A is moved onto the stage 6 of the second heating unit 76, the piston 26 extends the rod 26A. As a result, the piston head 46 descends and comes into contact with the upper surface of the mold A. Thus, the mold A is heated to a temperature exceeding the glass transition temperature Tg by the heater 6A incorporated in the stage 6 and the heater 46A incorporated in the piston head 46 while being sandwiched between the piston head 46 and the stage 6. Is done. The rod 26A returns to the contracted state when a predetermined time shorter than the tact time has elapsed from the start of expansion (second heating step). In parallel with this, the first heating step is performed on the mold B, and the mold C in which the new glass material 68 is accommodated is placed on the inlet stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92, 94, the fifth and

seventh transfer arms

98, 102, and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3C, the mold A placed on the stage 6 of the second heating unit 76 is a stage that constitutes the third heating unit 78 by the third transfer arm 94. 8 is moved upward (third movement step). At the same time, a second movement step is performed on the mold B, and a first movement step is performed on the mold C.

When the mold A is moved onto the stage 8 of the third heating unit 78, the piston 28 extends the rod 28A. As a result, the piston head 48 descends and comes into contact with the upper surface of the mold A. As described above, the mold A is heated to the glass yield point temperature Ts by the heater 8A incorporated in the stage 8 and the heater 48A incorporated in the piston head 48 while being sandwiched between the piston head 48 and the stage 8. . The rod 28A returns to the contracted state when a predetermined time shorter than the tact time has elapsed from the start of expansion (third heating step). In parallel with this, the second heating step is performed on the mold B, and the first heating step is performed on the mold C. Then, the molding die D in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92 and 94, the fourth and

sixth transfer arms

96, 100 and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3D, the mold A placed on the stage 8 of the third heating unit 78 is a stage that constitutes the first press unit 80 by the fourth transfer arm 96. 10 is moved upward (fourth moving step). At the same time, a third movement step is performed on the mold B, a second movement step is performed on the mold C, and a first movement step is performed on the mold D. .

When the mold A is moved onto the stage 10 of the first press unit 80, the piston 30 extends the rod 30A. As a result, the mold A is pressed from above by the piston head 50 while being supported by the stage 10 of the first press unit 80. The rod 30A once unloads the pressure applied to the mold A once a predetermined time shorter than the tact time has elapsed since the rod 30A is extended (first press step). In parallel with this, a third heating step is performed on the mold B, a second heating step is performed on the mold C, and a first heating step is performed on the mold D. Done. Then, the mold E in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92, 94, the fifth and

seventh transfer arms

98, 102, and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3E, the molding die B placed on the stage 8 of the third heating unit 78 is a stage constituting the second press unit 81 by the fifth transport arm 96. 11 is moved up (fifth moving step). At the same time, a third movement step is performed on the mold C, a second movement step is performed on the mold D, and a first movement step is performed on the mold E. .

When the first press step for the mold A is completed, the piston 30 extends the rod 30A again. As a result, the mold A is pressed from above by the piston head 50 while being supported by the stage 10 of the first press unit 80. As shown in FIG. 4, the pressing force P2 at this time is set to be smaller than the pressing force P2 in the first press step. Then, the rod 30A releases (unloads) the pressure applied to the mold A when a predetermined time shorter than the tact time elapses after being extended (second press step). In parallel with this, a first press step is performed on the mold B in the second press unit 81, a third heating step is performed on the mold C, and the mold D is performed. Then, the second heating step is performed, and the first heating step is performed on the mold E. Then, the molding die F in which the new glass material 68 is housed is placed on the entrance stage 3.

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92 and 94, the fourth and

sixth transfer arms

96, 100 and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3F, the mold A placed on the stage 10 of the first press unit 80 is a stage constituting the first cooling unit 82 by the sixth transfer arm 100. 12 is moved up (sixth moving step). At the same time, a fourth movement step is performed on the mold C, a third movement step is performed on the mold D, and a second movement step is performed on the mold E. The first moving step is performed on the mold F.

When the mold A is moved onto the stage 12 of the first cooling unit 82, the piston 32 extends the rod 32A. As a result, the piston head 52 descends and comes into contact with the upper surface of the mold A. In this manner, the mold A is temperature-adjusted so that the temperature is not suddenly lowered by the heater 12A incorporated in the stage 12 and the heater 52A incorporated in the piston head 52 while being sandwiched between the piston head 52 and the stage 12. While being cooled. When a predetermined time shorter than the tact time elapses after the rod 32A extends, the lot 32A returns to the contracted state (first cooling step). In parallel with this, the second press unit 81 performs the second press step on the mold B, and the first press unit 80 performs the first press step on the mold C. In other words, the third heating step is performed on the mold D, the second heating step is performed on the mold E, and the first heating step is performed on the mold F. Then, the molding die G in which a new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92, 94, the fifth and

seventh transfer arms

98, 102, and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3G, the mold B placed on the stage 11 of the second press unit 81 is a stage that constitutes the first cooling unit 82 by the seventh transfer arm 102. 12 is moved upward (seventh movement step). At the same time, the mold A placed on the stage 12 of the first cooling unit 82 is moved onto the stage 14 of the second cooling unit 84 by the eighth transfer arm 104 ( Eighth moving step). Further, simultaneously with these steps, a fifth moving step is performed on the mold D, a third moving step is performed on the mold E, and a second moving step is performed on the mold F. The first moving step is performed on the mold G.

When the mold A is moved onto the stage 14 of the second cooling unit 84, the piston 34 extends the rod 34A. As a result, the piston head 54 descends and comes into contact with the upper surface of the mold A. In this manner, the mold A is temperature-adjusted so that the temperature is not drastically lowered by the heater 14A incorporated in the stage 14 and the heater 54A incorporated in the piston head 54 while being sandwiched between the piston head 54 and the stage 14. While being cooled. When a predetermined time shorter than the tact time elapses after the rod 34A extends, the lot 34A returns to the contracted state (second cooling step). In parallel with this, a first cooling step is performed on the mold B, a second press step is performed on the mold C in the first press section 80, and the mold D is performed. In the second press section 81, the first press step is performed, the third heating step is performed on the mold E, the second heating step is performed on the mold F, and the mold G A first heating step is performed. Then, the mold H in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92 and 94, the fourth and

sixth transfer arms

96, 100 and the eighth to

tenth transfer arms

104, 106, 108 are activated. As a result, as shown in FIG. 3H, the mold A placed on the stage 14 of the second cooling unit 84 is a stage that constitutes the third cooling unit 86 by the ninth transfer arm 106. 16 is moved upward (9th movement step). At the same time, an eighth movement step is performed on the mold B, a sixth movement step is performed on the mold C, and a fourth movement step is performed on the mold E. A third moving step is performed on the mold F, a second moving step is performed on the mold G, and a first moving step is performed on the mold H.

When the mold A is moved onto the stage 16 of the third cooling unit 86, the piston 36 extends the rod 36A. As a result, the piston head 56 descends and comes into contact with the upper surface of the mold A. As described above, the mold A is temperature-adjusted so that the temperature is not suddenly lowered by the heater 16A incorporated in the stage 16 and the heater 56A incorporated in the piston head 56 while being sandwiched between the piston head 56 and the stage 16. It is cooled while performing. When a predetermined time shorter than the tact time elapses after the rod 36A extends, the lot 36A returns to the contracted state (third cooling step). In parallel with this, the second cooling step is performed on the mold B, the first cooling step is performed on the mold C, and the second press part 81 is performed on the mold D. The second press step is performed, the first press step 80 is performed on the mold E in the first press unit 80, the third heating step is performed on the mold F, and the mold G A second heating step is performed on the mold H, and a first heating step is performed on the mold H. Then, a mold I (not shown) in which a new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

90, 92, 94, the fifth and

seventh transfer arms

98, 102, and the eighth to

tenth transfer arms

104, 106, 108 are activated. Thus, the mold A placed on the stage 16 of the third cooling unit 86 is moved onto the outlet stage 17 by the tenth transport arm 108 (tenth moving step).
At the same time, a ninth movement step is performed on the mold B, an eighth movement step is performed on the mold C, and a seventh movement step is performed on the mold D. A fifth moving step is performed on the mold F, a third moving step is performed on the mold G, a second moving step is performed on the mold H, and the mold I On the other hand, a first movement step is performed.
By sequentially repeating the above steps, a glass molded body can be continuously produced.

According to this embodiment, the 1st and

2nd press parts

80 and 81 are provided, and the shaping | molding die 60 is conveyed alternately to these 1st and

2nd press parts

80 and 81 for every predetermined | prescribed tact time. . For this reason, the molding die 60 can be allowed to stay in the first and

second press sections

80 and 81 for twice the tact time. Thereby, the tact time can be set to half of the processing time required for the press step, and the entire processing time can be shortened. Moreover, since only the press part was increased compared with the conventional apparatus, the increase in manufacturing cost can be suppressed to the minimum.

In the present embodiment, the first and

second press sections

80 and 81 perform the press in two equal time intervals, but as described above, according to the present embodiment, the mold 60 is formed in the first and

second press sections

80 and 81. The

second press sections

80 and 81 can stay for twice the tact time. Therefore, even when one press process is performed for 10 minutes, or when two press processes are performed for different times such as 7 minutes for the first time and 3 minutes for the second time, the present embodiment It can respond.

In addition, although 1st Embodiment demonstrated the case where two press parts were provided in parallel, this invention is not limited to the said embodiment. For example, it is also possible to provide two upstream press sections and two downstream press sections in parallel as in the second embodiment described below.

FIG. 5 is a horizontal sectional view showing the glass molded body manufacturing apparatus 201 according to the second embodiment. As shown in FIG. 5, the glass molded body manufacturing apparatus 201 of the second embodiment includes first and

second press units

80 and 81 compared to the glass molded body manufacturing apparatus 1 of the first embodiment. Instead, a first upstream press section 210, a second upstream press section 212, a first downstream press section 214, and a second downstream press section 216 are provided. In addition, although the manufacturing apparatus 201 of the glass molded body of this embodiment is provided with two cooling parts, ie, the 1st and

2nd cooling parts

82 and 84, the number of cooling parts is not restricted to this. As in the embodiment, three cooling units, that is, first to third cooling units may be provided, or one or four or more may be provided.

The configurations of the first upstream press section 210, the second upstream press section 212, the first downstream press section 214, and the second downstream press section 216 are the same as those in the first embodiment. The

second press sections

80 and 81 have the same structure, and stages 220, 222, 224 and 226, and pistons (not shown) provided above the

stages

220, 222, 224 and 226, respectively. And a piston head (not shown) connected to the tip of the piston rod.

Further, the glass molded body manufacturing apparatus 201 of the second embodiment includes first to

eleventh transport arms

230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252.

The first transport arm 230 transports the mold from the entrance stage 3 to the stage 4 constituting the first heating unit 74. The second transport arm 232 transports the mold from the stage 4 constituting the first heating unit 74 to the stage 6 constituting the second heating unit 76. The third transport arm 234 transports the mold from the stage 6 constituting the second heating unit 76 to the stage 8 constituting the third heating unit 78.

4th conveyance arm 236 conveys a shaping | molding die from the stage 8 which comprises the 3rd heating part 78 to the stage 220 which comprises the 1st upstream press part 210. FIG. The fifth transport arm 238 transports the mold from the stage 8 constituting the third heating unit 78 to the stage 222 constituting the second upstream press unit 212. The fourth and

fifth transfer arms

236 and 238 correspond to the first press part carry-in mechanism and the second press part carry-in mechanism of the present invention, respectively.

The sixth transport arm 240 transports the mold from the stage 220 constituting the first upstream press section 210 to the stage 224 constituting the first downstream press section 214. The seventh transport arm 242 transports the mold from the stage 222 constituting the second upstream press part 212 to the stage 226 constituting the first downstream press part 216. The sixth and

seventh transport arms

240 and 242 correspond to the first press unit transport mechanism and the second press unit transport mechanism of the present invention, respectively.

8th conveyance arm 244 conveys a shaping | molding die from the stage 224 which comprises the 1st downstream press part 214 to the stage 12 which comprises the 1st cooling part 82. FIG. The ninth transport arm 246 transports the mold from the stage 226 that constitutes the second downstream press unit 216 to the stage 12 that constitutes the first cooling unit 82. The eighth and

ninth transfer arms

244 and 246 correspond to the first press part carry-out mechanism and the second press part carry-out mechanism according to the present invention, respectively.

The tenth transport arm 248 transports the molding die 60 from the stage 12 configuring the first cooling unit 82 to the stage 14 configuring the second cooling unit 84. The eleventh transport arm 250 transports the mold 60 from the stage 14 constituting the second cooling unit 84 to the outlet stage 17.

Hereinafter, a method for manufacturing a glass molded body using the glass molded body manufacturing apparatus 201 described above will be described. FIG. 6 is a diagram for explaining the movement of the molded body in the glass molded body manufacturing apparatus 1 according to the second embodiment. Moreover, FIG. 7 is a graph which shows the temperature of the glass material which paid attention to the glass material in a specific shaping | molding die in the manufacturing apparatus of the glass forming body of 2nd Embodiment, and the pressurized pressure in time series. In FIG. 6 and the following description, in order to distinguish a plurality of molds 60, the molds A, B,...

shutters

2A and 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232 and 234, the fifth, seventh and

ninth transfer arms

238 and 242 are opened. 246, and the tenth to

eleventh transport arms

248, 250 are activated. Thereby, as shown in FIG. 6A, the mold A placed on the entrance stage 3 is moved onto the stage 4 constituting the first heating unit 74 by the first transfer arm 230. (First moving step).

When the mold A is moved onto the stage 4 of the first heating unit 74, the first heating unit 74 performs the same first heating step as the first embodiment on the mold A. . In parallel with this, the mold B in which the new glass material 68 is housed is placed on the entrance stage 3.

When a predetermined tact time elapses from the previous activation of the transfer arm, the

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fourth, sixth, and eighth The

transfer arms

236, 240, 244 and the tenth to

eleventh transfer arms

248, 250 are activated. Thereby, as shown in FIG. 6B, the mold A placed on the stage 4 of the first heating unit 74 constitutes the second heating unit 76 by the second transport arm 232. It is moved onto the stage 6 (second movement step). At the same time, the first moving step is performed on the mold B.

When the mold A is moved onto the stage 6 of the second heating unit 76, a second heating step similar to that of the second embodiment is performed on the mold A by the second heating unit 76. In parallel with this, the first heating step is performed on the mold B. Then, the mold C in which the new glass material 68 is housed is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fifth, seventh, and ninth The

transfer arms

238, 242 and 246 and the tenth to

eleventh transfer arms

248 and 250 are activated. As a result, as shown in FIG. 6C, the mold A placed on the stage 6 constituting the second heating unit 76 causes the third heating unit 78 to be moved by the third transfer arm 234. It is moved onto the stage 8 that constitutes it (third movement step). At the same time, a second movement step is performed on the mold B, and a first movement step is performed on the mold C.

When the mold A is moved onto the stage 8 of the third heating unit 78, the third heating unit 78 performs the same third heating step as the first embodiment on the mold A. In parallel with this, the second heating step is performed on the mold B, and the first heating step is performed on the mold C. Then, the molding die D in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fourth, sixth, and eighth The

transfer arms

236, 240, 244 and the tenth to

eleventh transfer arms

248, 250 are activated. As a result, as shown in FIG. 6D, the mold A placed on the stage 8 constituting the third heating unit 78 is transferred to the first upstream press unit by the fourth transfer arm 236. It is moved onto the stage 220 constituting 210 (fourth moving step). At the same time, a third movement step is performed on the mold B, a second movement step is performed on the mold C, and a first movement step is performed on the mold D. .

When the mold A is moved onto the stage 220 of the first upstream press section 210, the piston constituting the first upstream press section 210 extends the rod. Thereby, the mold A is pressed from above by the piston head while being supported by the stage 220 of the first upstream press section 210. And after pressing the shaping | molding die A over predetermined time, a piston shrinks a rod (1st press step). In the present embodiment, when the first upstream press section 210 performs the first press step, only one press process is performed. As shown in FIG. The time is slightly shorter than twice the time. Further, at the same time as the first press step for the mold A is started in the first upstream press section 210, a third heating step is performed for the mold B, and the mold C is The second heating step is performed, and the first heating step is performed on the mold D. Then, the mold E in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fifth, seventh, and ninth The

transfer arms

238, 242 and 246 and the tenth to

eleventh transfer arms

248 and 250 are activated. As a result, as shown in FIG. 6E, the mold B placed on the stage 8 constituting the third heating unit 78 is moved by the fifth transport arm 238 to the second upstream press unit. It is moved onto the stage 222 constituting 212 (fifth moving step). At the same time, a third movement step is performed on the mold C, a second movement step is performed on the mold D, and a first movement step is performed on the mold E. .

When the mold B is moved onto the stage 222 of the second upstream press section 212, the piston constituting the second upstream press section 212 extends the rod. Accordingly, the mold B is pressed from above by the piston head while being supported by the stage 222 of the second upstream press portion 212. And after pressing the shaping | molding die B over predetermined time, a piston shrinks a rod (1st press step). Also in the first press step performed in the second upstream press unit 212, only one press process is performed as in the first press step performed in the first upstream press unit 210, and This first pressing step is performed for a time slightly shorter than twice the tact time. Further, at the same time as the first press step for the mold B is started in the second upstream press step section 212, a third heating step is performed for the mold C, Then, the second heating step is performed, and the first heating step is performed on the mold E. Then, the molding die F in which the new glass material 68 is housed is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fourth, sixth, and eighth The

transfer arms

236, 240, 244 and the tenth to

eleventh transfer arms

248, 250 are activated. As a result, as shown in FIG. 6F, the mold A placed on the stage 220 constituting the first upstream press unit 210 is moved to the first downstream side by the sixth transport arm 240. It is moved onto the stage 224 constituting the press unit 214 (sixth moving step). At the same time, a fourth movement step is performed on the mold C, a third movement step is performed on the mold D, and a second movement step is performed on the mold E. The first moving step is performed on the mold F.

When the mold A is moved onto the stage 224 of the first downstream press part 214, the piston constituting the first downstream press part 214 extends the rod. Thereby, the mold A is pressed from above by the piston head while being supported by the stage 224 of the first downstream press portion 214. Then, after pressing the mold A for a predetermined time, the piston contracts the rod (second press step). In the present embodiment, as in the first press step, as shown in FIG. 7, the second press step is performed only once, and the second press step is twice the tact time. It is performed in a little shorter time. In addition, at the same time as the second downstream press section 214 starts the second press step for the mold A, the first upstream press section 210 performs the first press step for the mold C. The third heating step is performed on the mold D, the second heating step is performed on the mold E, and the first heating step is performed on the mold F. Then, the molding die G in which a new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fifth, seventh, and ninth The

transfer arms

238, 242 and 246 and the tenth to

eleventh transfer arms

248 and 250 are activated. As a result, as shown in FIG. 6G, the molding die B placed on the stage 222 constituting the second upstream press portion 212 is moved to the second downstream side by the seventh transport arm 242. It is moved onto the stage 226 constituting the press unit 216 (seventh moving step). At the same time, a fifth movement step is performed on the mold D, a third movement step is performed on the mold E, and a second movement step is performed on the mold F. The first moving step is performed on the mold G.

When the mold B is moved onto the stage 226 of the second downstream press part 216, the piston constituting the second downstream press part 216 extends the rod. As a result, the mold B is pressed from above by the piston head while being supported by the stage 226 of the second downstream press section 216. And after pressing the shaping | molding die B over predetermined time, a piston shrinks a rod (2nd press step). Similarly to the second press step performed in the first downstream press unit 214, the second press step performed in the second downstream press unit 216 performs only one press process, and the tact time The time is slightly shorter than twice the time. At the same time as the second downstream press unit 216 starts the second press step for the mold B, the second upstream press unit 212 performs the first press step for the mold D. The third heating step is performed on the mold E, the second heating step is performed on the mold F, and the first heating step is performed on the mold G. Then, the mold H in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fourth, sixth, and eighth The

transfer arms

236, 240, 244 and the tenth to

eleventh transfer arms

248, 250 are activated. Thereby, as shown in FIG. 6 (H), the molding die A placed on the stage 224 constituting the first downstream press unit 214 is transferred to the first cooling unit by the eighth transport arm 244. It is moved onto the stage 12 constituting 82 (eighth moving step). At the same time, a sixth movement step is performed on the mold C, a fourth movement step is performed on the mold E, and a third movement step is performed on the mold F. The second moving step is performed on the mold G, and the first moving step is performed on the mold H.

When the mold A is conveyed onto the stage 12 constituting the first cooling unit 82, the first cooling step is performed. In addition, the 1st cooling step of 2nd Embodiment is performed similarly to the 1st cooling step of 1st Embodiment. At the same time as the first cooling step is started for the mold A in the first cooling section 82, the second press step is performed for the mold C in the first downstream press section 214. In the first upstream press section 210, the first press step is performed on the mold E, the third heating step is performed on the mold F, and the second heating is performed on the mold G. Steps are performed, and a first heating step is performed on the mold H. Then, the mold I in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fifth, seventh, and ninth The

transfer arms

238, 242 and 246 and the tenth to

eleventh transfer arms

248 and 250 are activated. As a result, as shown in FIG. 6I, the molding die B placed on the stage 226 constituting the second downstream press unit 216 is transferred to the first cooling unit by the ninth transport arm 246. It is moved onto the stage 12 constituting 82 (a ninth moving step). At the same time, the molding die A on the stage 12 constituting the first cooling unit 82 is moved to the stage 14 constituting the second cooling unit 84 by the tenth transport arm 248 (tenth movement). Step). At the same time, a seventh movement step is performed on the mold D, a fifth movement step is performed on the mold F, and a third movement step is performed on the mold G. The second moving step is performed on the mold H, and the first moving step is performed on the mold I.

When the mold A is conveyed onto the stage 14 constituting the second cooling unit 84, a second cooling step is performed. Note that the second cooling step of the second embodiment is performed in the same manner as the second cooling step of the first embodiment. Further, at the same time when the second cooling unit 84 starts the second cooling step for the mold A, the first cooling unit 82 performs the first cooling step for the mold B, 2, the second press step is performed on the mold D in the second downstream press section 216, and the first press step is performed on the mold D in the second upstream press section 212. A third heating step is performed on the mold D, a second heating step is performed on the mold H, and a first heating step is performed on the mold I. Then, the molding die J in which the new glass material 68 is accommodated is placed on the entrance stage 3.

shutters

2A, 2B of the chamber 2 are opened, and the first to

third transfer arms

230, 232, 234, the fourth, sixth, and eighth The

transfer arms

236, 240, 244 and the tenth to

eleventh transfer arms

248, 250 are activated. Thereby, the molding die A placed on the stage 14 constituting the second cooling unit 84 is moved onto the outlet stage 17 by the eleventh transfer arm 250 (an eleventh moving step). At the same time, the tenth moving step is performed on the mold B, the eighth moving step is performed on the mold C, and the sixth moving step is performed on the mold E. A fourth movement step is performed on the mold G, a third movement step is performed on the mold H, a second movement step is performed on the mold I, and the mold J is performed. Thus, the first movement step is performed.

As described above, according to the present embodiment, the first upstream press unit 210, the second upstream press unit 212, the first downstream press unit 214, and the second downstream press unit 216 are arranged. The molding die 60 is alternately conveyed to the first upstream press section 210 and the second upstream press section 212 at predetermined tact times by the provided fourth and

fifth transport arms

236 and 238. Further, the sixth and

seventh transfer arms

240 and 242 are driven so as to be synchronized with the fourth and

fifth transfer arms

236 and 238, respectively, and alternately at the first upstream side every predetermined tact time. The movement from the press section 210 to the first downstream press section 214 and the movement from the second upstream press section 212 to the second downstream press section 216 are performed. Further, the eighth and

ninth transfer arms

244 and 246 are driven so as to be synchronized with the fourth and

fifth transfer arms

236 and 238, respectively, and the first downstream press is alternately performed at every predetermined tact time. The movement from the section 214 to the first cooling section 82 and the movement from the second downstream press section 216 to the first cooling section 82 are performed. For this reason, the molding die 60 is placed in the first upstream press section 210, the second upstream press section 212, the first downstream press section 214, and the second downstream press section 216, respectively, twice the tact time. Can stay for hours. Thereby, the tact time can be set to half of the processing time required for the press step, and the entire processing time can be shortened. In addition, since only the number of press sections is increased compared to the conventional apparatus, an increase in the manufacturing cost of the apparatus can be minimized.

In addition, in each said embodiment, although the three

heating parts

74, 76, and 78 are provided, the number of a heating part is not restricted to this, What is necessary is just one or more. Similarly to this, one or more cooling units may be provided.

Moreover, in each said embodiment, although the two press parts were provided in parallel, you may provide not only this but three or more press parts in parallel.
Moreover, in said 2nd Embodiment, although the two press parts (an upstream press part and a downstream press part) are provided in series, you may provide three or more press parts in series.

The present invention will be summarized below with reference to the drawings.
As shown in FIG. 2, the glass molded body manufacturing apparatus 1 according to the first embodiment of the present invention includes first to

third heating units

74 and 76 that heat-treat a molding die 60 in which a glass material is disposed. 78, first and

second press sections

80, 81 for pressing the mold 60 heated in the first to

third heating sections

74, 76, 78, and first and second presses. The first to

third cooling units

82, 84, 86 for cooling the mold 60 pressed in the

units

80, 81, and the first and second

pressing units

80, 81, respectively. Fourth and

fifth transport arms

96 and 98 that transport the molding die 60 from the third heating section 78 to the first and

second press sections

80 and 81, respectively, and the first and

second press sections

80 and 81, corresponding to each of the first and second press portions 80, Comprising from 1 respectively sixth and

seventh transfer arm

100, 102 for transporting the mold 60 to the first cooling section 82, the.

Further, as shown in FIG. 5, the glass molded body manufacturing apparatus 201 according to the second embodiment of the present invention heats a molding die 60 in which a glass material is disposed, and performs first to third heating units 74. , 76, 78, a first upstream press section 210 that presses the forming die 60 that has been heat-treated in the first to

third heating sections

74, 76, 78, and a second upstream press section 212. A first downstream press section 214, a second downstream press section 216, the first upstream press section 210, a second upstream press section 212, and a first downstream press section. 214, first and

second cooling units

82 and 84 for cooling the mold 60 pressed in the second downstream press unit 216, and first and second

upstream press units

210 and 212, respectively. From the third heating section 78. The fourth and

fifth transport arms

236 and 238 that transport the mold 60 to the first and second

upstream press sections

210 and 212, respectively, and the first and second

downstream press sections

214 and 216, respectively. Eighth and

ninth transfer arms

244 and 246 that are provided correspondingly and transfer the mold 60 from the first and second

downstream press portions

214 and 216 to the first cooling portion 82, respectively. Sixth and

seventh transfer arms

240 and 242 for transferring the mold 60 from the upstream press part 210 and the second upstream press part 212 to the first and second

downstream press parts

214 and 216, respectively. .

1,201 Glass molded body manufacturing apparatus 2

Chamber

4, 6, 8, 11, 12, 14, 16

Stage

4A, 6A, 8A, 10A, 11A, 12A, 14A,

16A Heaters

24, 26, 28, 30, 31 , 32, 34, 36

Piston

44, 46, 48, 50, 51, 52, 54, 56

Piston head

44A, 46A, 48A, 50A, 51A, 52A, 54A, 56A Heater 74 First heating section 76 Second Heating unit 78 Third heating unit 80 First pressing unit 81 Second pressing unit 82 First cooling unit 84 Second cooling unit 86

Third cooling units

90, 92, 94, 96, 98, 100, 102, 104, 106 Conveying arm 210 First upstream press section 212 Second upstream press section 214 First downstream press section 216 Second

downstream press section

220, 222, 24,226 stage 230,232,234,236,238,240,242,244,246,248,250,252 transport arm

Claims

A heating unit that heat-treats a mold in which a glass material is disposed;
A plurality of press sections for pressing the mold that has been heat-treated in the heating section;
A cooling unit for cooling the mold pressed in the plurality of press units;
A plurality of press part carry-in mechanisms that are provided corresponding to each of the plurality of press parts, and that transport the molding die from the heating part to each of the plurality of press parts;
A plurality of press part carry-out mechanisms provided corresponding to each of the plurality of press parts, and conveying the molding die from each of the plurality of press parts to the cooling part;
Comprising
Equipment for manufacturing glass moldings.
The plurality of press units include first and second press units that perform press processing on a mold that is heat-treated in the heating unit,
The press part carry-in mechanism is
A first press section carry-in mechanism for transporting the mold from the heating section to the first press section;
A second press part carry-in mechanism for transporting the mold from the heating part to the second press part,
The press part carry-out mechanism is
A first press section unloading mechanism for transporting the mold from the first press section to the cooling section;
The manufacturing apparatus of the glass molded object of Claim 1 including the 2nd press part carrying-out mechanism which conveys the said shaping | molding die from the said 2nd press part to the said cooling part.
The first press part carry-in mechanism and the first press part carry-out mechanism are driven synchronously,
The second press part carry-in mechanism and the second press part carry-out mechanism are driven synchronously,
The first and second press part carry-in mechanisms alternately carry the mold from the heating part to the first press part and the second press part,
The first and second press part carry-out mechanisms carry the mold alternately from the first press part and the second press part to the cooling part,
The manufacturing apparatus of the glass molded object of Claim 2.
The heating unit, the first and second pressing units, and the cooling unit each include a heater at the bottom, and during the processing in each of these units, the mold is placed above the heater,
The first press part carry-in mechanism, the second press part carry-in mechanism, the first press part carry-out mechanism, and the second press part carry-out mechanism each include an arm that moves the molding die in the lateral direction.
The manufacturing apparatus of the glass molded object described in Claim 2 or 3.
The first and second press sections each include an upstream press section and a downstream press section,
The glass molded body manufacturing apparatus comprises:
A first press part transport mechanism for transporting the mold from an upstream press part of the first press part to a downstream press part of the first press part;
A second press part transport mechanism for transporting the mold from the upstream press part of the second press part to the downstream press part of the second press part,
The manufacturing apparatus of the glass molded object described in any one of Claim 2 to 4.