JP3811036B2 - Glass molding product handling equipment and handling method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a glass molded article handling apparatus and handling method.
[0002]
[Prior art]
Conventionally, a glass molded product such as a lens is molded by heating and softening a glass material and then putting it into a molding die and press molding it. In this case, a glass molded product having a shape corresponding to the shape of the cavity of the mold composed of the upper mold and the lower mold is formed.
[0003]
Then, after the glass molded product is molded, the upper mold is raised to open the mold, and the glass molded product remaining on the lower mold is taken out by a conveying member equipped with a suction means, etc. It is designed to be transported. However, when the mold is opened, the glass molded product does not remain on the lower mold, but may adhere to the molding surface of the upper mold and be raised. In this case, the transport member for taking out the glass molded product remaining on the lower mold cannot take out the glass molded article attached to the molding surface of the upper mold.
[0004]
Therefore, conventionally, when a glass molded product has adhered to the molding surface of the upper mold, a technique for separating the glass molded product from the molding surface of the upper mold and placing it on the lower mold has been proposed. (See JP 10-36126 A).
[0005]
FIG. 2 is a cross-sectional view showing a state in which a glass molded product adheres to the molding surface of the upper mold in a conventional glass molding apparatus, and FIG. 3 shows a state in which the glass molded product is pulled away from the molding surface of the upper mold in the conventional glass molding apparatus. FIG.
[0006]
In the figure, 101 is an upper mold as a mold for molding, 102 is a lower mold as a mold for molding, and 103 is a body mold surrounding the upper mold 101 and the lower mold 102. Here, when the lens 105 as a glass molded product is molded, the upper mold 101 is raised by a driving device (not shown). At this time, as shown in FIG. 2, the upper surface of the lens 105 may adhere to the molding surface 101 a of the upper mold 101, and the lens 105 may rise together with the upper mold 101.
[0007]
In this case, the upper mold 101 is moved in the lateral direction by a driving device (not shown). Then, since the side surface of the lens 105 is stopped by the inner surface of the body mold 103, the lens 105 cannot move in the lateral direction, and the upper surface of the lens 105 is separated from the molding surface 101 a of the upper mold 101. That is, the upper mold 101 and the barrel mold 103 are used to scrape the lens 105. Therefore, as shown in FIG. 3, the lens 105 falls within the body mold 103 and is placed on the mold surface 102 a of the lower mold 102.
[0008]
As a result, the lens 105 is reliably placed on the lower mold, so that it can be reliably taken out by the conveying member and conveyed to the subsequent process.
[0009]
[Problems to be solved by the invention]
However, in the conventional molding apparatus, the lens cannot be pulled away from the molding surface 101a of the upper mold 101 unless the upper surface is a flat lens. That is, when the upper surface of the lens 105 is concave or convex, the molding surface 101a of the upper mold 101 is convex or concave, so that the upper surface of the lens 105 and the molding surface 101a of the upper mold 101 are concave and convex. ) It will be in a state of matching. In this state, if the lens 105 is scraped by the upper mold 101 and the barrel mold 103, a large force is applied to the lens 105, and the lens 105 may be damaged or damaged.
[0010]
The present invention solves the above-mentioned conventional problems, and breaks the glass molded product when the glass molded product adheres to the molding surface of the upper mold regardless of the shape of the glass molded product. It is another object of the present invention to provide a glass molded product handling apparatus and a handling method that can be separated from the molding surface of the upper mold and placed on the lower mold.
[0011]
[Means for Solving the Problems]
Therefore, in the glass molded product handling apparatus of the present invention, a lower mold supporting means for holding a lower mold having a molding surface of a cavity for sandwiching a glass material therein, and an upper mold having a molding surface of the cavity An upper mold support means for holding the upper mold support means, an elevating means for raising the upper mold support means, a detection means for detecting a glass molded product adhering to the molding surface of the upper mold, Raised with the upper mold, When the detection means detects the glass molded product, the gas injection means for injecting gas toward the molding surface of the upper mold.
[0012]
In another glass molded product handling apparatus according to the present invention, the gas injection means further includes a gas introduction pipe attached to the upper mold support means and an injection nozzle attached to a tip of the gas introduction pipe. .
[0014]
In still another glass molded product handling apparatus of the present invention, the injection nozzle is further arranged so that the gas is injected toward the forming surface from a direction facing each other.
[0015]
In still another glass molded product handling apparatus of the present invention, the gas injection means injects gas when the glass molded product is within a predetermined distance from the molding surface of the lower mold.
[0016]
In the method for handling a glass molded product of the present invention, the upper mold having a molding surface of the cavity sandwiching the glass material inside is lifted away from the lower mold, and the glass molded product adheres to the molding surface of the upper mold. When it is detected that From the gas injection means that rises with the upper mold Gas is injected toward the molding surface of the upper mold to drop the glass molded product onto the molding surface of the lower mold.
[0017]
In another method of handling a glass molded product of the present invention, the gas is further injected from directions facing each other.
[0018]
In still another method of handling a glass molded article of the present invention, the gas is injected when the glass molded article is within a predetermined distance from the molding surface of the lower mold.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0020]
FIG. 4 is a plan sectional view of a glass molded product molding apparatus according to the first embodiment of the present invention. FIG. 5 is a schematic diagram of a section taken along the line AA of FIG. FIG. 6 is a schematic view taken along the line BB in FIG. 4 in the first embodiment of the present invention, and FIG. 7 is a schematic view taken along the line CC in FIG. 4 in the first embodiment of the present invention. FIG.
[0021]
In the figure, 10 is a molding device for a glass molded product, 11a is a first molding chamber, 11b is a second molding chamber, 12 is a cooling chamber, and 13 is a preheating chamber. Further, in the molding apparatus 10, a glass molded product handling apparatus including a glass molded product removing apparatus, which will be described later, is disposed. A transport arm 15 having transport manipulators 70 at both ends is disposed so as to be movable along the first transport arm rail 16 and the second transport arm rail 17. Thereby, the metal mold | die 64 can be moved among the said 1st shaping | molding chamber 11a, the 2nd shaping | molding chamber 11b, the cooling chamber 12, and the preheating chamber 13, and it can carry in and carry out, and can handle a glass molded product.
[0022]
Here, the glass molded product is a glass molded product that requires high accuracy in shape, size, material, and the like, such as an optical element such as a lens, a prism, a filter, and a mirror. In the present embodiment, there are two molding chambers, the first molding chamber 11a and the second molding chamber 11b, for convenience of explanation. Each of the first molding chamber 11a and the second molding chamber 11b accommodates a pair of molds 64 and molds a glass molded product.
[0023]
The mold 64 includes an upper mold 61 and a lower mold 62. As shown in FIG. 6, the upper mold 61 and the lower mold 62 are combined to form a mold 64 by being combined by a mold changing device 40 described later. Then, a glass material, that is, a glass material is sandwiched in a cavity formed between the upper mold 61 and the lower mold 62 and pressed from above and below in the first molding chamber 11a or the second molding chamber 11b. Thus, a glass molded product having the shape of the cavity is formed. Here, the material of the upper mold 61 and the lower mold 62, that is, the mold 64 is, for example, tungsten alloy, stainless alloy, cemented carbide or the like, but any material may be used. In addition, it is desirable that a thin film of one layer or two or more layers is formed on at least the surface of the cavity in order to prevent adhesion of the glass material. The material of the thin film is, for example, hydrogenated amorphous carbon, diamond, titanium nitride, tantalum nitride, platinum iridium, platinum silicon or the like, but any material may be used.
[0024]
Here, since the first molding chamber 11a and the second molding chamber 11b have the same configuration, for convenience of explanation, the configuration of the second molding chamber 11b will be described, and the configuration of the first molding chamber 11a will be described. Omitted. Below the second molding chamber 11b, as shown in FIG. 5, an elevating table 83 that moves up and down along a plurality of guide rods 84 is disposed. The elevator 83 is moved up and down by a drive source (not shown). Further, a mold lower support means 82 for molding on which the mold 64 is placed is mounted on the lift table 83. Then, as shown in FIG. 5, after the mold 64 is placed on the molding die lower support means 82 by the transfer manipulator 70 of the transfer arm 15, the transfer arm 15 is moved to the right in FIG. When moving to, the lifting / lowering base 83 is moved upward, and the mold 64 is inserted into the second molding chamber 11b together with the mold lower support means 82 for molding. At this time, the lower opening of the second molding chamber 11b is closed by the elevator 83.
[0025]
A mold pressing drive source 81 is mounted on the second molding chamber 11b, and after the mold 64 is inserted into the second molding chamber 11b, an upper mold constituting the mold 64 from above. By pressing the mold 61 downward and in cooperation with the molding mold lower support means 82, the glass material in the cavity formed between the upper mold 61 and the lower mold 62 is pressed from above and below. A glass molded product having the shape of the cavity is formed. The second molding chamber 11b is provided with heating means, cooling means, etc. (not shown), and the mold 64 inserted into the second molding chamber 11b can be heated or cooled.
[0026]
Further, in order to prevent the thin film, glass material and the like on the cavity surface as the molding surface of the mold 64 from being corroded or contaminated, an intake pipe and an exhaust pipe are connected to the second molding chamber 11b. It is desirable that the atmosphere in the second molding chamber 11b can be exhausted and purge gas can be filled. In this case, one end of the exhaust pipe is connected to the vacuum pump device 31, the atmosphere in the second molding chamber 11b is exhausted by the vacuum pump device 31, and one end of the intake pipe is a purge gas supply source (not shown) such as a gas cylinder. The purge gas from the purge gas supply source is filled in the second molding chamber 11b.
[0027]
The purge gas is preferably an inert gas such as nitrogen gas, argon gas, helium gas, or krypton gas. However, the mold 64, the thin film on the cavity surface, the glass material, and the like are not oxidized even in a high temperature state. If it is, it may be purified dry air, that is, dry air. Even if the mold 64, the thin film on the cavity surface, the glass material, and the like are not oxidized in a high temperature state, when exposed to high temperature in the atmosphere, the cavity surface, the thin film on the cavity surface, the glass material, etc. Dust (dust) floating in the atmosphere adheres to the surface of the product, or moisture contained in the atmosphere adheres as water droplets, which contaminates the surface of the molded glass product. If so, it does not contain dust and moisture, so that the surface of the glass molded product is not contaminated.
[0028]
In the preheating chamber 13, as shown in FIG. 7, a plurality of preheating mold lower support means 57 and a plurality of preheating mold upper support means 58 facing the preheating mold lower support means 57 are provided. For example, two, for example, two molds 64 can be preheated simultaneously. An opening is disposed on the side surface of the preheating chamber 13, and as shown in FIG. 7, the mold 64 is placed on the preheating mold lower support means 57 through the opening by the transfer manipulator 70 of the transfer arm 15. It is supposed to be placed. In addition, it is desirable to attach an openable / closable door to the opening. In addition, each preheating chamber may be a single container, and an opening / closing door or an elevating cover may be provided for each container. When the transfer arm 15 moves to the right in FIG. 7, the preheating mold upper support means 58 is moved downward by a driving means (not shown) and cooperates with the preheating mold lower support means 57. The mold 64 is held from above and below. Thereby, the mold 64 is preheated in a stable state.
[0029]
In addition, a gas introduction pipe is connected to the preheating chamber 13, and a purge gas is filled from the gas introduction pipe to create a purge gas atmosphere.
[0030]
Further, it is desirable that an exhaust pipe is connected to the preheating chamber 13 so that the atmosphere in the preheating chamber 13 is discharged so that the purge gas can be filled from the gas introduction pipe to form a purge gas atmosphere. In this case, one end of the exhaust pipe is connected to a vacuum pump device 31, the atmosphere in the preheating chamber 13 is exhausted by the vacuum pump device 31, and one end of the gas introduction pipe is connected to a purge gas supply source (not shown), Purge gas from the purge gas supply source is filled into the preheating chamber 13. The preheating chamber 13 is provided with heating means (not shown).
[0031]
In the cooling chamber 12, as shown in FIG. 7, a plurality of cooling mold lower support means 55 and a plurality of cooling mold upper support means 56 facing the cooling mold lower support means 55 are provided. For example, four, for example, four, for example, four molds 64 can be cooled simultaneously. An opening is provided on the side surface of the cooling chamber 12, and as shown in FIG. 7, the mold 64 is placed on the cooling mold lower support means 55 through the opening by the transfer manipulator 70 of the transfer arm 15. It is supposed to be placed. In addition, it is desirable to attach an openable / closable door to the opening. When the transfer arm 15 moves to the left in FIG. 4, the cooling mold upper support means 56 is moved downward by a driving means (not shown), and in cooperation with the cooling mold lower support means 55, The mold 64 is held from above and below. Thereby, the mold 64 is cooled in a stable state.
[0032]
A gas introduction pipe 19a is connected to the cooling chamber 12, and a purge gas is filled from the gas introduction pipe 19a to create a purge gas atmosphere.
[0033]
Further, an exhaust pipe 19b is connected to the cooling chamber 12, and the atmosphere in the cooling chamber 12 is exhausted so that a purge gas can be filled from the gas introduction pipe 19a to create a purge gas atmosphere. desirable. In this case, one end of the exhaust pipe 19b is connected to the vacuum pump device 31, the atmosphere in the cooling chamber 12 is exhausted by the vacuum pump device 31, and one end of the gas introduction pipe 19a is connected to a purge gas supply source (not shown). The purge chamber 12 is filled with purge gas from the purge gas supply source. The cooling chamber 12 is provided with a cooling means (not shown). The cooling means has a water cooling plate through which cooling water passes. The water cooling plate is preferably disposed so that the mold 64 is in direct contact so that the mold 64 can be efficiently and rapidly cooled.
[0034]
The first transfer arm rail 16 is attached to the frame 21 of the molding apparatus 10 and extends in the lateral direction in FIG. A second transfer arm rail 17 that extends in a direction perpendicular to the first transfer arm rail 16 is mounted on the first transfer arm rail 16 so as to slide along the first transfer arm rail 16. . Further, a slide base 18 is mounted on the second transfer arm rail 17 so as to slide along the second transfer arm rail 17. The slide table 18 may have a telescopic configuration that can be expanded and contracted. On the slide table 18, a transfer arm 15 provided with transfer manipulators 70 as gripping means at both ends is attached so as to be able to rotate with an axis extending in the vertical direction in FIG. 5 as a rotation axis.
[0035]
Then, by moving or rotating the second transfer arm rail 17, the slide base 18 and the transfer arm 15, the tip of the transfer manipulator 70 is moved into the first molding chamber 11a and the first molding chamber 11a as shown in FIG. On the molding die lower support means 82 in the second molding chamber 11 b, the respective preheating mold lower support means 57 in the preheating chamber 13, and the respective cooling mold lower support means 55 in the cooling chamber 12. Once reached, the mold 64 can be carried in and out.
[0036]
The molding apparatus 10 includes a mold recombination apparatus 40 and a loading / unloading apparatus 50. The mold recombination device 40 includes a lower mold support means 42 on which a mold 64 is placed by the transfer manipulator 70 of the transfer arm 15. The lower mold support means 42 is mounted on the table 43, and when the mold 64 is placed, the lower mold 62 constituting the mold 64 is held by holding means (not shown) such as suction and gripping. After that, as shown in FIG. 6, it is moved to a position directly below the upper mold support means 41. The table 43 is attached to the frame 21.
[0037]
The upper mold support means 41 is attached to the tip portion of the upper mold handling means attached to the frame 21 and is moved downward by the operation of the upper mold handling means, not shown. After holding the upper mold 61 constituting the mold 64 by holding means such as suction and gripping, the upper mold 61 is moved upward and reaches a position as shown in FIG.
[0038]
Here, the glass molded product molded inside the mold 64 normally remains inside the lower mold 62, but may adhere to the cavity surface as the molding surface of the upper mold 61. In this case, the glass molded product is separated from the cavity surface as the molding surface of the upper mold 61 and placed on the cavity surface of the lower mold 62 by a glass molded product removing device described later. .
[0039]
The loading / unloading device 50 includes a slide base 52 that is attached to the frame 21 and slides along a guide rail extending in the lateral direction in FIG. The slide table 52 has a guide member extending in the vertical direction in FIG. 4, and a suction means holding frame having a plurality of molded product suction means 51 is movably attached to the guide member. Then, the molded product suction means 51 is moved by the slide table 52 and the suction means holding frame, and when it reaches the position of the lower mold support means 42, it remains on the cavity surface inside the lower mold 62. A glass molded product is adsorbed and held. A molded product suction means 51 for sucking and holding the glass molded product is moved by the slide table 52 and the suction means holding frame, and is placed on one of a plurality of pallets 53 arranged on the guide rail. Is reached, the adsorption of the glass molded product is stopped, and the glass molded product is placed on the pallet 53.
[0040]
On the other hand, a plurality of glass materials carried from the outside of the molding apparatus 10 are placed on the other pallet 53, and the molded product suction means 51 is moved by the slide table 52 and the suction means holding frame. When reaching the pallet 53, the glass material on the pallet 53 is adsorbed. Further, on the guide rail, a glass material centering device 44 for placing a glass material adsorbed and held by the molded product adsorbing means 51 and performing centering is disposed. The glass material centering device 44 can simultaneously center a plurality of, for example, four glass materials.
[0041]
The molded product adsorbing means 51 adsorbs and holds the centered glass material and moves it onto the lower mold 62 held by the lower mold supporting means 42, and then the glass material. Is stopped, and the glass material is placed on the lower mold 62.
[0042]
When the glass material is placed on the lower mold 62, the upper mold support means 41 is moved downward, and the upper mold 61 is covered with the lower mold 62 to form the mold 64. A glass material is sandwiched in a cavity formed between the upper mold 61 and the lower mold 62. The mold 64 is held and moved by the transfer manipulator 70 of the transfer arm 15 and is carried into the preheating chamber 13.
[0043]
Further, the molding apparatus 10 includes a frame 21, a transparent cover member 22 that is attached to the frame 21 and covers substantially a half circumference of the molding apparatus 10, and a wall member 23 that is attached to the frame 21 and covers the remaining part of the molding apparatus 10. Have Here, the transparent cover member 22 is provided so that the movement of the movable member such as the transfer arm 15 can be monitored from the outside, and the range covered by the transparent cover member 22 can be appropriately selected. . Further, in order to avoid the influence of dust, contaminants, etc. floating in the surrounding atmosphere, the periphery of the molding apparatus 10 is covered with the transparent cover member 22 and the wall member 23 including the ceiling portion and the floor portion. It is desirable to make it.
[0044]
The transparent cover member 22 or the wall member 23 located in the vicinity of the pallet 53 is provided with an opening for carrying in the glass material and carrying out the glass molded product. And it is desirable to attach the door which can be opened and closed to this opening. Further, an intermediate wall member 28 can be disposed in the molding apparatus 10 to partition the first molding chamber 11a and the second molding chamber 11b from other parts, for example.
[0045]
A plurality of wheels 26 such as casters for rolling and moving the molding apparatus 10 are attached to the lower surface of the frame 21, and a plurality of telescopic legs 27 for fixing the molding apparatus 10 are installed near the wheels 26. It is attached. Furthermore, a plurality of hook members 25 for lifting the molding apparatus 10 with a crane or the like are attached to the upper surface of the frame 21.
[0046]
A vacuum pump device 31 is disposed outside the molding apparatus 10. The vacuum pump device 31 discharges the air inside the first molding chamber 11a, the second molding chamber 11b and the like connected by a pipe (not shown). A purge gas supply source such as a gas cylinder may be provided together with the vacuum pump device 31.
[0047]
A control device 32 is disposed outside the molding apparatus 10. The control device 32 includes arithmetic means such as a CPU and MPU, storage means such as a magnetic disk and a semiconductor memory, an input / output interface, and the like. The first molding chamber 11a, the second molding chamber 11b, the preheating chamber 13, the cooling The temperature state, atmosphere, etc. inside the chamber 12 etc. are comprehensively controlled, and all of the transfer arm 15, transfer manipulator 70, mold changing device 40, loading / unloading device 50, glass molded product removal device, etc. The overall operation of the devices and means is controlled. In addition, the said control apparatus 32 may exist independently, and may be a part of other control apparatus.
[0048]
Further, an operation panel 33 is provided as an input operation means of the control device 32. The operation panel 33 includes input means such as various buttons, keys, joysticks and dials, display means such as a meter, a CRT, and a liquid crystal display. The operator views the contents displayed on the display means while viewing the contents displayed on the display means. It is possible to set or change the operating conditions. The control device 32 and the operation panel 33 may be disposed at a location away from the molding apparatus 10 or may be formed integrally with the molding apparatus 10.
[0049]
Next, the structure of the glass molded product removal apparatus will be described in detail.
[0050]
FIG. 1 is a front view of a glass molded product detaching apparatus according to the first embodiment of the present invention, and FIG. 8 is a side view of the glass molded product detaching apparatus according to the first embodiment of the present invention.
[0051]
In the figure, 45 is an elevating member as an elevating means to which the upper mold support means 41 is attached, and moves up and down along an elevating rail 46 fixed to a column 47 attached to the frame 21 of the molding apparatus 10. The upper mold support means 41 is provided with a holding means 41a for holding the upper mold 61 by suction, gripping or the like.
[0052]
The elevating member 45 is provided with an injection gas introduction pipe 73 as gas injection means, and the injection gas introduction pipe 73 is branched into two, and a gas injection nozzle 72 as an injection nozzle is attached to the tip thereof. It has been. The other end of the injection gas introduction pipe 73 is connected to an injection gas supply source (not shown), and an injection gas as a gas from the injection gas supply source is injected from the gas injection nozzle 72.
[0053]
Here, like the purge gas, the jet gas is preferably an inert gas such as nitrogen gas, argon gas, helium gas, krypton gas, or the like, but may be purified dry air, that is, dry air. Good. Further, the injection gas supply source may be the same as the purge gas supply source.
[0054]
As shown in FIG. 1, the gas injection nozzle 72 has the injection gas from both sides toward a cavity surface as a molding surface of the cavity of the upper mold 61 held by the holding means 41 a, that is, a lower surface. Is attached to be injected. In addition, although the direction in which the said injection gas is injected may be horizontal, as FIG. 1 shows, it is desirable that it is the direction inclined slightly below horizontal. In this case, the height position of the tip of the gas injection nozzle 72 is slightly higher than the height position of the lower surface of the upper mold 61 as shown in FIG. Further, the gas injection nozzle 72 is disposed so that the injection gas is injected toward the molding surface from a direction facing each other.
[0055]
Further, as shown in FIG. 8, a glass molded product adhesion detection sensor 74 and a mold detection sensor 75 are arranged on the side of the lower mold support means 42 on which the lower mold 62 is placed. Established. The glass molded product adhesion detection sensor 74 and the mold detection sensor 75 are preferably optical sensors that use light such as laser light.
[0056]
The glass molded product adhesion detection sensor 74 detects that the glass molded product is adhered to the lower surface of the upper mold 61 held by the holding means 41a and moved upward. The mold detection sensor 75 detects that the lower mold 62 is placed on the lower mold support means 42.
[0057]
Next, the operation of the glass molded product handling apparatus having the above-described configuration will be described.
[0058]
First, a pallet 53 on which a plurality of glass materials are placed is placed on the loading / unloading device 50 from the outside of the molding apparatus 10. Then, the slide table 52 and the suction means holding frame are operated, and the glass material is sucked and held by the molded product suction means 51 and transferred onto the glass material centering device 44. Then, the glass material that has been centered is again adsorbed and held by the molded product adsorbing means 51 and is held on the lower mold 62 supported by the lower mold supporting means 42 of the mold changing device 40. To be transferred.
[0059]
Next, the table 43 is operated to move the lower mold support means 42 to a position directly below the upper mold support means 41. Then, the upper mold support means 41 is moved downward in a state where the upper mold 61 is held, and the upper mold 61 is covered with the lower mold 62 to constitute the mold 64, and the upper mold is formed. Glass material is sandwiched in a cavity formed between the upper surface of 61 and the lower surface of lower mold 62.
[0060]
Subsequently, the second transfer arm rail 17 and the slide base 18 are operated to move the transfer arm 15, the transfer manipulator 70 approaches the mold 64 of the lower mold support means 42, and the mold 64 is moved. Hold.
[0061]
Next, the transfer arm 15 is moved upward in FIG. Subsequently, after the transfer arm 15 is rotated 90 degrees in the clockwise direction and then moved leftward in FIG. 4, the transfer manipulator 70 holding the mold 64 is preheated through the side opening. Enter the chamber 13. When the transfer arm 15 is moved further leftward in FIG. 4, the mold 64 held by the transfer manipulator 70 is placed on the preheating mold lower support means 57. Then, the preheating mold upper support means 58 is moved downward, and the mold 64 is sandwiched from above and below in cooperation with the preheating mold lower support means 57, so that the mold 64 is stabilized. Next, when the transfer arm 15 is moved to the right in FIG. 4, the transfer manipulator 70 moves out of the preheating chamber 13 through the side opening. Then, the door of the opening of the side surface of the preheating chamber 13 is closed by a driving device (not shown).
[0062]
Here, the inside of the preheating chamber 13 is a purge gas atmosphere and is in a high temperature state of about 300 to 500 [° C.]. For this reason, the glass material sandwiched in the cavity inside the mold 64 placed on the preheating mold lower support means 57 approaches the glass transition temperature when a time of about several tens of seconds elapses. The glass transition temperature is, for example, about 510 [° C.] when the glass material is borosilicate glass.
[0063]
Subsequently, when the temperature of the glass material is preheated until it approaches the glass transition temperature, the transfer manipulator 70 of the transfer arm 15 enters the preheating chamber 13 through the opening on the side surface. Then, after the mold 64 placed on the preheating mold lower support means 57 is held by the transport manipulator 70, the transport manipulator 70 exits from the preheating chamber 13 through the side opening. The mold 64 is carried out of the preheating chamber 13. In the preheating chamber 13, a plurality of, for example, two molds 64 are preheated at the same time, so that the preheating chamber 13 is sequentially loaded from the mold 64 that is carried into the preheating chamber 13 and preheated for the longest time. It is to be carried out outside. Therefore, the time interval for carrying out the preheated mold 64 from the preheating chamber 13 until the temperature of the glass material approaches the glass transition temperature is the glass material in the mold 64 placed on the preheating mold lower support means 57. Is much shorter than the time required to approach the glass transition temperature.
[0064]
Next, after the second transfer arm rail 17 is slid slightly to the right in FIG. 4 along the first transfer arm rail 16, the transfer arm 15 is rotated 90 degrees in the clockwise direction. When moved upward, the transfer manipulator 70 holding the mold 64 enters below the second molding chamber 11b. In order for the transfer manipulator 70 holding the mold 64 to enter the lower side of the first molding chamber 11a, the second transfer arm rail 17 is moved along the first transfer arm rail 16 to the right in FIG. Slide it a lot.
[0065]
Then, when the transfer arm 15 is moved further upward in FIG. 4, the mold 64 held by the transfer manipulator 70 is placed on the molding die lower support means 82 on the lifting table 83. The Next, the transfer arm 15 is moved downward in FIG. 4, and when the transfer arm 15 is moved out of the second molding chamber 11b, the lifting / lowering base 83 is moved upward, and the mold 64 is supported by the molding die lower support means. Together with 82, it is inserted into the second molding chamber 11b. At this time, the lower opening of the second molding chamber 11 b is closed by the lifting platform 83.
[0066]
Subsequently, the second molding chamber 11b is filled with a purge gas to become a purge gas atmosphere. Then, when the glass material in the mold 64 is further heated to, for example, about 600 [° C.], the mold pressing drive source 81 is operated, and the upper mold 61 constituting the mold 64 is moved downward from above. The glass material in the cavity formed between the upper mold 61 and the lower mold 62 is pressed from above and below in cooperation with the molding mold lower support means 82. Thereby, a glass molded product having the shape of the cavity is formed. After completion of the pressure molding, the glass material is cooled until the temperature of the glass material becomes equal to or lower than the glass transition temperature. During this time, the glass material in the cavity is continuously pressed from above and below with a force smaller than the molding force.
[0067]
When the temperature of the glass material becomes equal to or lower than the glass transition temperature, the mold pressing drive source 81 stops operating, and thus the pressing of the glass material is finished. Subsequently, the lifting / lowering base 83 is moved downward, and the mold 64 withdraws downward from the second molding chamber 11b together with the mold lower support means 82 for molding. Then, the transfer manipulator 70 of the transfer arm 15 enters below the second molding chamber 11b. Then, after the mold 64 placed on the molding mold lower support means 82 is held by the transport manipulator 70, when the transport manipulator 70 moves out of the second molding chamber 11b, the mold The mold 64 is carried out of the second molding chamber 11b.
[0068]
Since the molding apparatus 10 has a plurality of molding chambers, for example, two molding chambers, the molding device 10 is carried into the molding chamber earliest and is sequentially transferred out of the molding chamber 64 after molding. Therefore, the time interval for carrying out the mold 64 in which the glass molded product having the shape of the cavity is carried out from the molding chamber is much shorter than the time required for molding in the molding chamber.
[0069]
Next, after the transfer arm 15 is rotated 90 degrees in the clockwise direction, the transfer arm 15 is moved downward in FIG. 4 and then moved rightward, the transfer manipulator 70 holding the mold 64 is moved. , Enters the cooling chamber 12 through the opening on the side. When the transfer arm 15 is further moved to the right in FIG. 4, the mold 64 held by the transfer manipulator 70 is placed on the cooling mold lower support means 55. Then, the cooling mold upper support means 56 is moved downward, and the mold 64 is sandwiched from above and below in cooperation with the cooling mold lower support means 55, so that the mold 64 is stabilized. Next, when the transfer arm 15 is moved to the left in FIG. 4, the transfer manipulator 70 moves out of the cooling chamber 12 through the opening on the side surface. And the door of the opening of the side surface of this cooling chamber 12 is closed by the drive device which is not shown in figure.
[0070]
Here, the inside of the cooling chamber 12 is a purge gas atmosphere. The inside of the cooling chamber 12 is cooled by a water cooling plate. Further, when the water cooling plate is disposed so as to contact the mold 64 on the cooling mold lower support means 55, the mold 64 is rapidly cooled. The glass molded product sandwiched in the cavity inside the mold 64 placed on the cooling mold lower support means 55 is 200 ° C. when a time of about several tens of seconds to one hundred seconds elapses. Decreases to: Then, the transfer manipulator 70 of the transfer arm 15 enters the cooling chamber 12 through the side opening. After the mold 64 placed on the cooling mold lower support means 55 is held by the transfer manipulator 70, the transfer manipulator 70 moves out of the cooling chamber 12 through the opening on the side surface. Then, the mold 64 is carried out of the cooling chamber 12.
[0071]
In the cooling chamber 12, a plurality of, for example, four molds 64 are cooled at the same time. Therefore, the mold 64 that is carried into the cooling chamber 12 first and cooled for the longest time is sequentially removed from the cooling chamber 12. To be carried out. Therefore, the time interval for unloading the mold 64 whose temperature of the glass molded product has been lowered from the cooling chamber 12 is such that the glass molded product in the mold 64 placed on the cooling mold lower support means 55 has a predetermined temperature. This is much shorter than the time required for cooling.
[0072]
Next, after the transfer arm 15 is rotated 90 degrees in the clockwise direction, the second transfer arm rail 17 is slid to the left in FIG. 4 along the first transfer arm rail 16, and subsequently FIG. Is moved downward, the transfer manipulator 70 holding the mold 64 approaches the lower mold support means 42 of the mold changing device 40. When the transfer manipulator 70 is moved further downward in FIG. 4, the held mold 64 is placed on the lower mold support means 42. Next, when the transfer arm 15 is moved upward in FIG. 4, the transfer manipulator 70 is separated from the lower mold support means 42.
[0073]
Subsequently, when the mold detection sensor 75 shown in FIG. 8 detects that the mold 64 is placed on the lower mold support means 42, the elevating member 45 moves downward along the elevating rail 46. To do. Then, the upper mold support means 41 attached to the elevating member 45 is moved downward, and the upper mold 61 of the mold 64 is held by the holding means 41a. At this time, the lower mold 62 is held by the holding means of the lower mold support means 42. When the elevating member 45 is moved upward and the upper mold support means 41 is moved upward, the upper mold 61 is pulled upward, separated from the lower mold 62, and the mold is opened.
[0074]
At this time, the glass molded product usually remains on the lower mold 62, but may adhere to the lower surface of the upper mold 61 and be pulled upward together with the upper mold 61. In this case, the glass molded product adhesion detection sensor 74 detects the glass molded product adhered to the lower surface of the upper mold 61, and the elevating member 45 stops. Subsequently, as shown in FIG. 1, the injection gas is injected from the gas injection nozzles 72 attached to both sides of the upper mold 61 toward the lower surface of the upper mold 61.
[0075]
Thereby, the injection gas collides with the side surface of the glass molded product, and the injection gas enters between the lower surface and the glass molded product, so that the glass molded product is detached from the lower surface and falls.
[0076]
Here, since the raising / lowering member 45 stops almost simultaneously when the glass molded product adhesion detection sensor 74 detects the glass molded product adhered to the lower surface of the upper mold 61, the glass when the injection gas is injected is stopped. The height position of the molded product is substantially equal to the height position of the glass molded product adhesion detection sensor 74. That is, the gas injection nozzle 72 is configured to inject an injection gas when the glass molded product is within a predetermined distance from the molding surface of the lower mold 62. Therefore, as shown in FIG. 8, the distance that the glass molded product is detached from the upper mold 61 and falls to the upper surface of the lower mold 62 is extremely short, so that the glass molded product falls on the upper surface of the lower mold 62. Will not be damaged by the impact.
[0077]
When the glass molded product is detached from the upper mold 61, the glass molded product adhesion detection sensor 74 does not detect the glass molded product, so that the lifting member 45 resumes upward movement.
[0078]
The injection time of the injection gas may be short, but it is detected that the glass molded product is still attached to the downward cavity surface of the upper mold 61 even after the injection is finished. When detected by the sensor 74, the injected gas is injected again. In addition, when it is confirmed by a prior experiment or the like that the glass molded product is surely detached from the upper mold 61 by one injection of the injected gas, the glass molded product adheres after the injection of the injected gas is completed. Without considering the detection of the detection sensor 74, the elevating member 45 may automatically resume the upward movement.
[0079]
In this way, when the glass molded product is placed on the lower mold 62, the table 43 is activated, moved to the left in FIG. 6, and stopped. Then, the slide base 52 and the suction means holding frame are operated, and the molded product suction means 51 sucks the glass molded product. The molded product suction means 51 is moved to the left in FIG. 6 in a state where the glass molded product is suctioned and held, and reaches the pallet 53. Here, the glass molded product is placed on the pallet 53 by releasing the suction.
[0080]
Finally, when a predetermined number of glass molded articles are placed on the pallet 53, the glass molded articles are carried out of the molding apparatus 10.
[0081]
And many glass molded products can be shape | molded by repeating the above-mentioned operation | movement.
[0082]
In this embodiment, since the time required for cooling is longer than the time required for molding and preheating, the number of glass materials to be preheated at the same time is two, whereas simultaneously forming and cooling are performed. The number of glass materials to be used is four, but these numbers can be changed as appropriate.
[0083]
As described above, in this embodiment, when the glass mold is attached to the lower surface, which is the molding surface of the upper mold 61, when the mold is opened, the gas injection nozzle 72 is directed toward the lower surface. By injecting the injection gas, the glass molded product is detached from the lower surface and dropped onto the upper surface of the lower mold 62.
[0084]
Therefore, regardless of the shape of the glass molded product, the glass molded product can be reliably placed on the lower mold 62 without being damaged.
[0085]
Further, since the injection gas introduction pipe 73 is attached to the elevating member 45, the relative positional relationship between the molding surface of the upper mold 61 and the injection nozzle 72 is stabilized, so that the injection gas is reliably injected to a predetermined position. Is done. Further, when the purge gas is used as the injection gas, the surface of the glass molded product is not contaminated, and the supply source of the purge gas can be used, so that the equipment cost can be saved.
[0086]
Further, since the injection nozzle 72 is arranged so that the injection gas is injected from the direction facing each other toward the molding surface, the glass molded product is stably moved without being moved laterally by the injection gas. Fall right below.
[0087]
Further, the injection nozzle 72 injects an injection gas when it adheres to the lower surface of the upper mold 61 and the glass molded product is within a predetermined distance from the molding surface of the lower mold 62. For this reason, the distance over which the glass molded product is detached from the lower surface of the upper mold 61 and dropped to the upper surface of the lower mold 62 is extremely short, and the glass molded product is damaged by the impact of dropping on the upper surface of the lower mold 62. There is no.
[0088]
Furthermore, since the molding apparatus 10 includes a preheating chamber 13 that can preheat a plurality of glass materials at the same time, a plurality of molding chambers that mold the glass materials, and a cooling chamber 12 that can cool a plurality of glass materials at the same time, throughput is achieved. Will improve. Moreover, since it can convey one by one with the one conveyance arm 15, the working efficiency of the conveyance arm 15 is high, and a manufacturing cost can be made low.
[0089]
Furthermore, only the inside of the preheating chamber 13, the cooling chamber 12, the first molding chamber 11a, the second molding chamber 11b, and the cylindrical closed cover may be a purge gas atmosphere, and the entire interior of the molding apparatus 10 is a purge gas atmosphere. Since there is no need, consumption of expensive purge gas can be reduced and running cost can be reduced.
[0090]
Next, a second embodiment of the present invention will be described. The description of the same structure and the same operation as those in the first embodiment will be omitted.
[0091]
FIG. 9 is a front view of a glass molded product removing apparatus according to the second embodiment of the present invention, and FIG. 10 is a side view of the glass molded product removing apparatus according to the second embodiment of the present invention.
[0092]
In the figure, 78 is a slide member as a horizontal movement means to which an injection gas introduction pipe 77 as two gas injection means is attached, and a slide rail fixed to a column 47 attached to the frame 21 of the molding apparatus 10. It moves along the horizontal direction in FIG.
[0093]
A gas injection nozzle 76 as an injection nozzle is attached to the tip of the injection gas introduction pipe 77. The other end of the injection gas introduction pipe 77 is connected to an injection gas supply source (not shown), and the injection gas from the injection gas supply source is injected from the gas injection nozzle 76. The injection gas introduction pipe 77 and the gas injection nozzle 76 do not move in the vertical direction in FIG.
[0094]
Further, the slide member 78 advances forward (leftward in the figure) from a position retracted backward (rightward in the figure) as shown in FIG. In this case, the gas injection nozzle 76 advances from the position where the glass molded product adhesion detection sensor 74 and the mold detection sensor 75 are disposed in FIG. 10 and is placed on the lower mold support means 42. It advances to the position of the central axis connecting the lower mold 62 and the upper mold 61 held by the holding means 41a.
[0095]
At this time, as shown in FIG. 9, the gas injection nozzle 76 and the lower mold 62 are positioned at a position slightly higher than the upper surface of the lower mold 62 placed on the lower mold support means 42. It reaches a position where the injection gas is injected from both sides toward the central axis connecting the upper mold 61 held by the holding means 41a. The direction in which the injection gas is injected may be a direction slightly inclined downward from the horizontal, but is preferably horizontal as shown in FIG. Further, the gas injection nozzle 76 is arranged so that the injection gas is injected toward the molding surface from a direction facing each other. Therefore, the glass molded product is stably dropped directly below without being moved laterally by the propellant gas.
[0096]
Next, operation | movement of the glass molded product removal apparatus in this Embodiment of the said structure is demonstrated.
[0097]
First, when the mold 64 is placed on the lower mold support means 42, the mold detection sensor 75 detects that the mold 64 is placed on the lower mold support means 42. Then, the elevating member 45 moves downward along the elevating rail 46. The slide member 78 is stopped at a position retracted rearward as shown in FIG. The upper mold support means 41 attached to the elevating member 45 is moved downward, and the upper mold 61 of the mold 64 is held by the holding means 41a. At this time, the lower mold 62 is held by the holding means of the lower mold support means 42. When the elevating member 45 is moved upward and the upper mold support means 41 is moved upward, the upper mold 61 is pulled upward, separated from the lower mold 62, and the mold is opened.
[0098]
At this time, the glass molded product usually remains on the lower mold 62, but may adhere to the lower surface of the upper mold 61 and be pulled upward together with the upper mold 61. In this case, the glass molded product adhesion detection sensor 74 detects the glass molded product adhered to the lower surface of the upper mold 61, and the elevating member 45 stops. Subsequently, the slide member 78 moves forward, and the gas injection nozzle 76 is moved by the lower mold 62 placed on the lower mold support means 42 and the upper mold held by the holding means 41a in FIG. It advances to the position of the central axis connecting the mold 61.
[0099]
Here, since the raising / lowering member 45 stops almost simultaneously when the glass molded article adhesion detection sensor 74 detects the glass molded article adhering to the lower surface of the upper mold 61, the glass when the raising / lowering member 45 is stopped is stopped. The height position of the molded product is substantially equal to the height position of the glass molded product adhesion detection sensor 74. At this time, the height position of the lower surface of the upper mold 61 is equal to the height position of the gas injection nozzle 76. When the height position of the lower surface of the upper mold 61 when the lifting member 45 is stopped is not equal to the height position of the gas injection nozzle 76, the lifting member 45 is moved upward or downward to The height position of the lower surface of the mold 61 is adjusted to be equal to the height position of the gas injection nozzle 76.
[0100]
Subsequently, an injection gas is injected toward the lower surface of the upper mold 61 from the gas injection nozzles 76 that have reached positions on both sides of the upper mold 61. Thereby, the injection gas collides with the side surface of the glass molded product, and the injection gas enters between the lower surface and the glass molded product, so that the glass molded product is detached from the lower surface and falls.
[0101]
Here, the height position of the glass molded product when the injection gas is injected is equal to the height position of the gas injection nozzle 76. That is, the gas injection nozzle 76 is configured to inject an injection gas when the glass molded product is within a predetermined distance from the molding surface of the lower mold 62. Therefore, the distance at which the glass molded product is detached from the upper mold 61 and dropped onto the upper surface of the lower mold 62 is extremely short, and the glass molded product is not damaged by the impact of dropping onto the upper surface of the lower mold 62.
[0102]
When the glass molded product is detached from the upper mold 61, the glass molded product adhesion detection sensor 74 does not detect the glass molded product, so that the lifting member 45 resumes upward movement. Further, the slide member 78 moves rearward, and the gas injection nozzle 76 moves backward to the position shown in FIG.
[0103]
Thus, in this embodiment, since the height position of the injection gas introduction pipe 77 is at a low position, a space for disposing the members and the device above as in the case where the height of the molding apparatus 10 is low. Even if there is no, it can be applied.
[0104]
In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
[0105]
【The invention's effect】
As described above in detail, according to the present invention, in a glass molded product handling apparatus, a lower mold supporting means for holding a lower mold having a molding surface of a cavity for sandwiching a glass material therein, and the cavity An upper mold support means for holding an upper mold having a molding surface, an elevating means for raising the upper mold support means, and a detection means for detecting a glass molded article adhering to the molding surface of the upper mold. , Raised with the upper mold, When the detection means detects the glass molded product, the gas injection means for injecting gas toward the molding surface of the upper mold.
[0106]
In this case, regardless of the shape of the glass molded product, the glass molded product can be reliably placed on the lower mold without being damaged.
[0107]
In another glass molded product handling apparatus, the gas injection means further includes a gas introduction pipe attached to the upper mold support means and an injection nozzle attached to a tip of the gas introduction pipe.
[0108]
In this case, the relative positional relationship between the molding surface of the upper mold and the injection nozzle is stabilized, so that the gas is reliably injected to a predetermined position.
[0111]
In still another glass molded product handling apparatus, the injection nozzle is further arranged so that the gas is injected toward the forming surface from a direction facing each other.
[0112]
In this case, the glass molded article is stably dropped directly below without being moved laterally by the gas.
[0113]
In still another glass molded product handling apparatus, the gas injection means injects gas when the glass molded product is within a predetermined distance from the molding surface of the lower mold.
[0114]
In this case, the distance at which the glass molded product is detached from the molding surface of the upper mold and falls to the upper surface of the lower mold is extremely short, so that the glass molded product is not damaged by the impact of dropping on the upper surface of the lower mold. .
[0115]
In the glass molded product handling method, the upper mold having the molding surface of the cavity sandwiching the glass material inside is lifted away from the lower mold, and the glass molded product adheres to the molding surface of the upper mold. Is detected, From the gas injection means that rises with the upper mold Gas is injected toward the molding surface of the upper mold to drop the glass molded product onto the molding surface of the lower mold.
[0116]
In this case, regardless of the shape of the glass molded product, the glass molded product can be reliably placed on the lower mold without being damaged.
[0117]
In another method for handling a glass molded article, the gas is further injected from directions facing each other.
[0118]
In this case, the glass molded article is stably dropped directly below without being moved laterally by the gas.
[0119]
In still another method of handling a glass molded product, the gas is injected when the glass molded product is within a predetermined distance from the molding surface of the lower mold.
[0120]
In this case, the distance at which the glass molded product is detached from the molding surface of the upper mold and falls to the upper surface of the lower mold is extremely short, so that the glass molded product is not damaged by the impact of dropping on the upper surface of the lower mold. .
[Brief description of the drawings]
FIG. 1 is a front view of a glass molded product removing apparatus according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state where a glass molded product is attached to a molding surface of an upper mold in a conventional glass molding apparatus.
FIG. 3 is a cross-sectional view showing a state in which a glass molded product is pulled away from a molding surface of an upper mold in a conventional glass molding apparatus.
FIG. 4 is a cross-sectional plan view of a glass molded product forming apparatus according to the first embodiment of the present invention.
FIG. 5 is a schematic view of a cross section taken along the line AA of FIG. 4 in the first embodiment of the present invention.
6 is a schematic view taken along the line B-B in FIG. 4 according to the first embodiment of the present invention.
7 is a schematic view of a cross section taken along the line CC of FIG. 4 in the first embodiment of the present invention.
FIG. 8 is a side view of the glass molded product removing apparatus according to the first embodiment of the present invention.
FIG. 9 is a front view of a glass molded product removing apparatus according to a second embodiment of the present invention.
FIG. 10 is a side view of a glass molded product removing apparatus according to a second embodiment of the present invention.
[Explanation of symbols]
19a Gas introduction pipe
41 Upper mold support means
42 Lower mold support means
45 Lifting member
61 Upper mold
62 Lower mold
72, 76 Gas injection nozzle
73, 77 Injection gas introduction pipe
74 Glass molded product adhesion detection sensor

Claims (7)

(A) a lower mold supporting means for holding a lower mold having a molding surface of a cavity that sandwiches a glass material inside;
(B) an upper mold support means for holding an upper mold having a molding surface of the cavity;
(C) elevating means for raising the upper mold support means;
(D) detection means for detecting a glass molded article adhering to the molding surface of the upper mold;
(E) Glass molding characterized by having gas injection means that rises together with the upper mold and injects gas toward the molding surface of the upper mold when the detection means detects the glass molded product. Product handling equipment. The said gas injection means is a handling apparatus of the glass molded product of Claim 1 provided with the gas introduction pipe | tube attached to the said upper metal mold | die support means, and the injection nozzle attached to the front-end | tip of this gas introduction pipe | tube. The said injection nozzle is a handling apparatus of the glass molded product of Claim 2 arrange | positioned so that the said gas may be injected toward the said molding surface from the direction which mutually opposes. The said gas injection means is a handling apparatus of the glass molded product of any one of Claims 1-3 which injects gas, when the said glass molded product exists in the predetermined distance from the molding surface of the said lower metal mold | die. (A) Raise the upper mold having a molding surface of the cavity sandwiching the glass material inside away from the lower mold,
(B) When it is detected that a glass molded product is attached to the molding surface of the upper mold, gas is injected from the gas injection means that rises together with the upper mold toward the molding surface of the upper mold. do it,
(C) A method for handling a glass molded product, wherein the glass molded product is dropped onto a molding surface of the lower mold. The method for handling a glass molded product according to claim 5 , wherein the gas is injected from directions facing each other. The method for handling a glass molded product according to claim 5 or 6 , wherein the gas is injected when the glass molded product is within a predetermined distance from a molding surface of the lower mold.

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