JP2011136853A - Glass product molding apparatus and method for cooling mold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass product molding apparatus in which when molds are arranged close to each other so as to mold a plurality of glass molded articles at the same time, strength of glass products can be enhanced by suppressing dislocation of baffle marks on the glass products, and which is easily constructed, curbs costs and does not cause strength reduction of the molds, and a method for cooling molds. <P>SOLUTION: The glass product molding apparatus 1 comprises a plurality of molds arranged close to each other so as to mold a plurality of glass molded articles at the same time, and a cooling mechanism to cool the plurality of molds with a cooling gas, wherein the cooling mechanism 5 has a spot cooling section 8 for blowing the cooling gas R2 from the vicinities of mold inner surfaces U and U facing each other via a gap 26 between first and second rough molds 2 and 3 onto the mold inner surfaces U and U. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a glass product forming apparatus for obtaining a glass product such as a glass bottle, and a cooling method for a forming mold in this apparatus, and in particular, it is possible to cool inner wall portions of a plurality of forming molds arranged close to each other. The present invention relates to a glass product molding apparatus and a mold cooling method.

  Conventionally, as a method for forming a glass molded product for obtaining a glass product, a molten glass (gob) is supplied to a rough mold, this is press-molded into a parison, and this is transferred to a finishing mold to obtain a glass molded product. A blow system or a blow-and-blow system in which molten glass is supplied to a rough mold and molded with air to form a parison, and the parison is transferred to a finishing mold to obtain a glass molded product. The glass product forming apparatus used in these systems is equipped with the above-mentioned rough mold, finish mold, etc., and by arranging a plurality of such molds close to each other, simultaneously forming a plurality of glass molded products Productivity is being improved.

  On the other hand, when carrying out the forming method as described above, since a large amount of heat is transferred from the molten glass or semi-molten glass to the mold, the mold is cooled by a predetermined cooling mechanism such as a cooling gas spraying device. It is important to maintain the temperature of the glass product, thereby maintaining a certain molding condition and maintaining the quality of the glass product. However, for example, by spraying the cooling gas from a position away from the mold toward the mold, the mold is blocked by the support and various members of the mold, the cooling gas has a long path, etc. It is difficult to control the mold temperature properly and the cooling efficiency is low.

  In particular, when a plurality of molds are arranged close to each other, the cooling gas flows to the outside of the plurality of molds (the side where both molds are not adjacent), while the inside (the two molds) It doesn't flow very much on the close side. Therefore, the inside of the plurality of molds (the side where both molds are close to each other) is difficult to be cooled. As a result, the inner part of each mold (the part constituting the inner side of the mold) becomes hotter than the outer part (the part constituting the outer side of the mold), and there is a temperature difference between the two parts. It will occur. For example, if there is a temperature difference between the inner and outer parts of the rough mold, the parison formed with the rough mold will have uneven temperature, and when the inverted parison is blown with a finishing mold and inflated, the parison The portion corresponding to the rough inner portion in FIG. 3 has a larger elongation than the portion corresponding to the outer portion. As a result, a deviation of the baffle mark formed by the baffle (deviation from the center of the bottom surface) occurs on the bottom back surface of the glass product, the thickness of the bottom portion of the glass product is uneven, and the strength tends to be reduced.

  Therefore, as a cooling mechanism for cooling the mold, the coarse cooling apparatus disclosed in Patent Document 1 includes a damper device that adjusts the amount of cooling gas, and a cooling passage through which the cooling gas flows inside the mold. The flow rate of the cooling gas flowing through Further, in the molding apparatus of Patent Document 2, the cooling gas can reach the cooling passage inside the mold at the same pressure, and the cooling effect is predicted by making the flow of the cooling gas uniform. In the bottle type for the hollow glass product forming apparatus, the height limitation of the usable mold is eliminated by flowing a cooling gas from the holding arm to the cooling passage inside the mold.

JP-A-3-228833 JP-A-4-75170 Japanese Patent Laid-Open No. 6-64931

  However, when a plurality of molding dies are arranged close to each other, a cooling passage is formed inside the molding dies and the cooling gas is sent into the molding die as in the above-described conventional technique. It is difficult to build a molding device because there are many parts and they are close to each other. The cost is increased because a mold having a cooling passage must be manufactured, and more labor is required for maintenance. Furthermore, since a cavity is formed inside the mold, there is a problem that the strength of the mold is lowered. Also, by flowing a cooling gas inside the mold, the wall surface of the cooling passage that is in contact with the cooling gas is suddenly cooled, adversely affecting the glass molded product formed near the passage wall surface. There is also a risk of deviation.

  Therefore, in view of the above-mentioned problems of the prior art, the present invention makes it difficult for a glass product to be displaced when a molding die is disposed close to each other in order to simultaneously mold a plurality of glass molded products. Provided are a glass product molding apparatus capable of improving the strength of a glass product, being easy to construct a molding apparatus, reducing costs, and not causing a reduction in the strength of the mold, and a cooling method for the mold. For the purpose.

In order to achieve the above object, the following technical measures were taken.
That is, the glass product molding apparatus of the present invention includes a plurality of molding dies arranged close to each other in order to simultaneously mold a plurality of glass moldings, a cooling mechanism for cooling the plurality of molding dies with a cooling gas, In the glass product forming apparatus, the cooling mechanism includes a spot cooling unit that blows the cooling gas to the inner surface of the mold from the vicinity of the inner surface of the mold facing the gaps between the plurality of molds. It is characterized by.

  With the glass product molding apparatus of the present invention, the spot cooling unit cools the inner surface of the mold by blowing the cooling gas from the vicinity of the inner surface of the mold facing the gap between the plurality of molding dies. Sufficient cooling efficiency can be obtained without forming a cooling passage in the mold. Therefore, parts such as piping for sending the cooling gas are less than in the case where the cooling passage is formed inside the molding die, and it is easy to construct the molding apparatus. There is no need to process each mold, and maintenance can be done with less labor, thus reducing costs. Furthermore, since it is not necessary to form a cavity inside each mold, the strength of each mold is not reduced. The cooling gas is blown around each mold, and the inside of each mold is gently cooled. Therefore, the glass molded product is not adversely affected, and the displacement of the baffle mark hardly occurs. Thereby, the intensity | strength of a glass product can be improved.

  Moreover, it is preferable that an airway groove for diffusing the sprayed cooling gas in multiple directions is formed on the inner surface of each mold. By forming such an airway groove, the sprayed cooling gas is diffused in multiple directions, and the cooling efficiency by the cooling gas can be improved.

When each molding die is configured by combining a plurality of divided molds so that they can be freely opened and closed, the spot cooling unit is configured so that each molding die can be used when the molding die is in an open state or a closed state. It is preferable that the cooling gas can be sprayed onto the inner surface of the mold from the vicinity of the inner surface of the mold.
In this way, the cooling gas is blown to the inner surface of the mold from the vicinity of the inner surface of the mold facing each other with a gap between the plurality of molding dies when each of the molding dies is in the open state or the closed state. Therefore, there are no restrictions on the cooling timing and cooling time, and a glass molded product can be formed with a finer cooling pattern. Thereby, the quality of the glass product can be further improved.

Various configurations can be adopted for the spot cooling unit. For example, the spot cooling unit includes a cooling gas generation unit that generates the cooling gas, and the cooling gas generation unit to the vicinity of the plurality of molds. The gas pipe for sending the cooling gas and the spraying part for introducing the cooling gas sent through the gas pipe into the gap and blowing it on the inner surface of the mold can be used.
With only such a configuration, the cooling gas generated by the cooling gas generating means can be blown through the gas pipe and blown from the blowing portion to the inner surface of the mold, so that it can be installed in a small space and attached to other members provided around the apparatus. There are no restrictions.

Further, the spraying portion is composed of an introduction pipe provided over the vicinity of the gap from the port of the gas pipe, and an elongated nozzle provided in the introduction pipe and entering the gap. It is preferable that a tip hole for blowing out the cooling gas toward the tip of the nozzle and a side hole for blowing out the cooling gas toward the side of the nozzle are provided.
By adopting such a nozzle, the cooling gas can be blown over a larger range of the inner surface of the mold from the vicinity of the inner surface of the mold.

  Although the position and angle of the nozzle are changed depending on the mold and the glass molded product to be formed, the nozzle corresponds to the lower part of the glass molded product molded by the mold. It is preferable to be provided corresponding to the above. If the nozzle is provided at such a position, it is possible to cool from the lower part of the glass molded product, so that the lower part (including the bottom) of the glass molded product is effectively cooled, and the baffle mark is displaced. Can be prevented.

  Moreover, it is preferable that the nozzle is provided so that the cooling gas does not directly hit the glass molded product released from the respective molds. In this case, it is possible to suppress the influence of the cooling gas directly hitting the released glass molded product.

  The glass product molding apparatus of the present invention can be applied to various processes for forming a glass molded product. For example, the glass product forming apparatus can be applied to an apparatus used in a press-and-blow press process, and the plurality of forming dies can be configured as rough dies for forming a parison.

  The mold cooling method of the present invention is a mold cooling method for cooling a plurality of molds arranged close to each other in order to simultaneously mold a plurality of glass molded articles with a cooling gas. Each of the molding dies is cooled by blowing the cooling gas onto the inner surface of the mold from the vicinity of the inner surface of the mold facing the gap between the molding dies.

  According to the cooling method of the molding die of the present invention, the cooling gas is blown from the vicinity of the inner surface of the mold facing the gap between the plurality of molding dies to cool the inner surface of the mold. Even if the cooling passage is not formed, sufficient cooling efficiency can be obtained. Therefore, parts such as piping for sending the cooling gas are less than in the case where the cooling passage is formed inside the molding die, and it is easy to construct the molding apparatus. In addition, it is not necessary to process each mold, and maintenance can be performed with less labor, thus reducing costs. Furthermore, since it is not necessary to form a cavity inside each mold, the strength of each mold is not reduced. The cooling gas is blown around each mold, and the inside of each mold is gently cooled. Therefore, the glass molded product is not adversely affected, and the displacement of the baffle mark hardly occurs. Thereby, the intensity | strength of a glass product can be improved.

  As described above, according to the present invention, sufficient cooling efficiency can be obtained without forming a cooling passage in the mold. Therefore, there are few parts, such as piping for sending cooling gas, and it is easy to construct a molding device. There is no need to process each mold, and maintenance can be done with less labor, thus reducing costs. Furthermore, since it is not necessary to form a cavity inside each mold, the strength of each mold is not reduced. Since the cooling gas is blown around each mold, the inside of each mold is gradually cooled, and the glass molded product is not adversely affected, and the displacement of the baffle mark hardly occurs. Thereby, the intensity | strength of a glass product can be improved.

It is a schematic diagram at the time of applying the glass product shaping | molding apparatus which concerns on one Embodiment of this invention to the apparatus of a press process among press and blow systems. It is a plane schematic diagram showing a glassware forming apparatus. (A) is a front view of a split mold, and (b) is a side view of the split mold (inside face of the mold). It is the plane schematic diagram of the principal part of the glass product shaping | molding apparatus of a mold open state. It is a perspective view of the principal part of the glass product shaping | molding apparatus which removed the rough mold and the mold support part in the mold open state. It is a perspective view of the principal part of the glass product shaping | molding apparatus which removed one rough mold | type in the mold open state. It is a partially cutaway perspective view of a nozzle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view when a glass product forming apparatus 1 according to an embodiment of the present invention is applied to an apparatus for a pressing process in a press and blow system. In the present embodiment, the two molds are arranged close to each other, and two glass molded articles can be molded at the same time. As shown in the figure, the press-and-blow method is composed of a press process P and a blow process B. The parison 100 (glass molded product) formed in the press process P is transferred to the blow process B and air is passed to the parison 100. Is blown to form a glass bottle. More specifically, in the pressing step P, gobs (not shown) are first put into the first and second rough molds 2 and 3, and the upper ends of both rough molds 2 and 3 are closed by the baffle 101, and then the gob Is pressed by the plunger 103 pushed up through the mouth mold 102, and the parison 100 is formed. After the baffle 101 is detached and the two rough molds 2 and 3 are opened, the parison 100 is transferred to the finishing mold apparatus 105 used in the blowing process B by inverting the mouth mold 102 by the invert arm 104. The parison 100 placed in the finishing mold 106 is blown and inflated into a product shape to form a glass bottle.

  FIG. 2 is a schematic plan view showing the glass product forming apparatus 1 according to this embodiment. The glass product forming apparatus 1 includes first and second rough molds (molding molds) 2 and 3, support means 4 provided so as to surround the rough molds 2 and 3, and cooling the rough mold. A cooling mechanism 5 and a control unit 6 that controls the support means 4 and the cooling mechanism 5 are mainly configured. Among these, the cooling mechanism 5 includes a main cooling part 7 installed outside the support means 4 and a spot cooling part 8 provided with a part of the support means 4. In the following description, the through direction in FIG. 2 is referred to as the vertical direction, the horizontal direction in FIG. 2 is referred to as the horizontal direction, and the vertical direction in FIG.

  The first and second rough molds 2 and 3 have the same shape and dimensions and are formed in a cylindrical shape penetrating in the vertical direction, and are arranged close to each other in the front-rear direction of FIG. Both of these rough molds 2 and 3 are configured by combining the first split molds 2A and 3A located on the left side of FIG. 2 and the second split molds 2B and 3B located on the right side of FIG. The inner peripheries of the first and second rough molds 2 and 3 are formed surfaces 9 corresponding to the required shape of the parison, as shown in FIG. Grooves 10 are provided on the outer peripheries of the first and second rough molds 2 and 3. The groove 10 includes an outer groove 10a formed on the outer surface S of the first and second rough molds 2 and 3 (the surface on the side where the two rough molds 2 and 3 are not close to each other), and the first and second It is comprised by the inner airway groove | channel 10b formed in the type | mold inner surface U of the 2 rough molds 2 and 3 (the side which both the rough molds 2 and 3 adjoin).

  The outer groove 10 a is composed of six circumferential grooves 11 that are long in the circumferential direction and are formed over a required range at the center in the vertical direction of the first and second rough molds 2 and 3. The inner airway groove 10b includes nine circumferential grooves 12 that are long in the circumferential direction formed over a required range in the vertical center of the first and second rough molds 2 and 3, and the first and second rough molds 2. 3 vertical grooves 13 that are long in the vertical direction and are formed over a required range in the circumferential inner portion (see FIG. 3B). In the inner airway groove 10b, the seventh circumferential groove 12 and the five vertical grooves 13 intersect with each other, and a part of the inner surface U of the first and second rough molds 2 and 3 is a lattice shape. It seems to have been cut out.

  FIG. 4 is a schematic plan view of the main part of the glass product forming apparatus 1 in the mold open state, and FIG. 5 shows the first and second rough molds 2 and 3 and the mold support part 14 described later in the mold open state. It is a perspective view of the principal part of the removed glass product shaping | molding apparatus 1. FIG. FIG. 6 is a perspective view of a main part of the glass product forming apparatus 1 from which one of the rough molds 2 is removed in the mold open state. The support means 4 includes two mold support portions 14 that support the first and second rough molds 2 and 3 from both sides in the left-right direction and are molded along the outer peripheries of the two rough molds 2 and 3. 14, two arm portions 15 that move 14, a shaft portion 16 installed at one end portion 15 a of both arm portions 15, and a drive unit (not shown) that drives both arm portions 15.

  The two arm portions 15 are rotated about the shaft portion 16 as a rotation axis by the driving force of the drive portion, and the both arm portions 15 are biased in the opening direction or the closing direction, whereby the die support portion 14 is rotated. The first and second rough molds 2 and 3 supported by the mold are closed and opened. Therefore, in the mold open state, as shown in FIG. 4, the first split molds 2A and 3A are separated from the center part in the left oblique direction together with one arm part 15 (left arm part 15), and the other arm part The second split molds 2B and 3B are separated from the central portion in the diagonally right direction together with 15 (the right arm portion 15).

  The main cooling part 7 of the cooling mechanism 5 is installed away from both arm parts 15 (see FIG. 2), and the cooling gas (air) generated by the cooling gas generating means (not shown) for main cooling is generated. The main cooling part 7 is blown out in the direction of the arrow in FIG. The main cooling unit 7 blows the cooling gas R1 from the left and right sides of the first and second rough molds 2 and 3 and the support means 4 so that the two rough molds 2 and 3 and the entire support means 4 in the entire left and right direction. Cooling is performed from the beginning.

  The spot cooling unit 8 of the cooling mechanism 5 includes a cooling gas generating means 20 for generating a cooling gas, and a cooling gas from the cooling gas generating means 20 to the vicinity of the first and second rough molds 2 and 3. It consists of two gas pipes 21 to be sent and each spraying part 22 connected to each gas pipe 21 so as to allow ventilation (see FIG. 2). The cooling gas generating means 20 is provided with two gas outlets 23, 23, and each gas outlet 23 is provided in the vicinity of the support means 4. Each gas pipe 21 is made of a flexible rubber tube. One end 21a of each gas pipe 21 is connected to each gas outlet 23 so as to be able to vent. These gas pipes 21 are provided from each gas outlet 23 to the upper surface 15b of each arm portion 15 of the support means 4. It has been.

  Each blowing portion 22 includes a metal introduction pipe 24 provided from the other end (tube port) 21b of the gas pipe 21 to the vicinity of the gap 26 between the first and second rough molds 2 and 3, It consists of an elongated metal nozzle 25 provided in the introduction pipe 24 and entering the gap 26 (see FIGS. 5 and 6). The proximal end portion 24a of the introduction pipe 24 is connected to the other end portion (tube port) 21b of the gas pipe 21 so as to allow ventilation. The leading end 24b of the introduction tube 24 is bent toward the gap 26 between the first and second rough molds 2 and 3, and a nozzle 25 is provided at the leading end 24b.

  Each nozzle 25 is formed to be elongated from the middle part to the tip part, and is introduced into the gap 26 between the first and second rough molds 2 and 3 from the upper side of the arm part 15 toward the lower diagonal direction. ing. Each nozzle 25 is provided with a tip hole 28 that blows out the cooling gas R2 toward the tip of the nozzle 25 and a side hole 29 that blows out the cooling gas R2 toward the side of the nozzle 25 (see FIG. 7). ). Of these, seven side holes 29 are formed on each of the left and right sides from the tip of the nozzle 25. In the present embodiment, the diameters of the tip hole 28 and the side hole 29 are 1.5 mm, and the distance t between the adjacent side holes 29 is 10 mm. The shape, number, hole diameter, and distance t of the tip hole 28 and the side hole 29 can be appropriately changed. The cooling gas R2 blown out from the tip hole 28 by the tip hole 28 is directed obliquely below the gap 26 between the first and second rough molds 2 and 3, and the right and left seven side holes 29 respectively The cooling gas R2 blown out from the side hole 29 is directed toward the mold inner surfaces U and U in which the inner airway grooves 10b of the first and second rough molds 2 and 3 are formed.

  Further, each nozzle 25 is formed on the upper part of both rough molds 2 and 3 corresponding to the lower part 100u (see FIG. 1) of the glass molded product 100 formed by the first and second rough molds 2 and 3. The cooling gas R <b> 2 is provided so as not to directly hit the glass molded product 100 which is made to correspond and released from the first and second rough molds 2 and 3. Specifically, the tip 25 a of each nozzle 25 is positioned at the center in the vertical direction of the glass molded product 100, and the angle of introduction of the nozzle 25 into the gap 26 between the first and second rough molds 2 and 3. α is 55 ° downward (see FIG. 6). Note that the distance between each nozzle 25 and the inner surface U of the mold to which the cooling gas R2 is blown from the nozzle 25 is appropriately changed depending on molding conditions and the like.

  As shown in FIGS. 5 and 6, a metal bracket 30 for fixing each spraying portion 22 is provided on the upper surface 15 b of each arm portion 15. The bracket 30 includes a plate-like portion 31 formed in a flat plate shape and a holding portion 32 provided on the upper surface 31 a of the plate-like portion 31. A convex part 31 t is formed on one side of the plate-like part 31, and this convex part 31 t is attached to the mold support part 14 and the arm part 15 by a bolt 33. The lower surface 32a of the holding part 32 is fixed to the upper surface 31a of the plate-like part 31 by welding. Further, the holding portion 32 is formed with a through hole 32k communicating with the longitudinal direction, and the introduction tube 24 is inserted and fixed to the through hole 32k. As a result, the blowing part 22 including the introduction pipe 24 and the nozzle 25 is fixed to the mold support part 14 and the arm part 15.

  As described above, since each nozzle 25 is fixed to each arm portion 15 and the like, each gas pipe 21 that sends the cooling gas R2 to each nozzle 15 has flexibility. When the two rough molds 2 and 3 are closed and opened, one of the nozzles 25 (the nozzle 25 on the left side in FIG. 4) is the first divided mold 2A and the first divided mold 2A. 3A, and the other nozzle (nozzle 25 on the right side in FIG. 4) can move integrally with the first and second rough molds 2 and 3 and the second divided molds 2B and 3B (see FIG. (See FIG. 4). Therefore, even if the first and second rough molds 2 and 3 are opened, and the first split molds 2A and 3A and the second split molds 2B and 3B are separated from each other, the cooling gas R2 is supplied to both nozzles 25 and 25. It is possible to blow out from.

  Further, by the control unit 6 that controls the support unit 4 and the cooling mechanism 5, the timing of mold closing and mold opening of the first and second rough molds 2 and 3 by moving the support unit 4, and the main cooling unit 7 The time and timing of the main cooling from both the left and right sides and the spot cooling to the mold inner surfaces U and U of the first and second rough molds 2 and 3 by the spot cooling unit 8 are appropriately controlled.

  With the configuration as described above, the cooling gas generated by the cooling gas generating means 20 is sent to the vicinity of the first and second rough molds 2 and 3 through the gas pipes 21, and the sent cooling gas is In the mold that is introduced in the vicinity of the gap 26 between the first and second rough molds 2 and 3 by the introduction pipe 24 of the spraying part 22 and faces the gap 26 by the nozzles 25 entering the gap 26. The cooling gas R2 is sprayed from the vicinity of the side surfaces U and U to the mold inner surfaces U and U. Further, the cooling air R2 blown to the inner surfaces U and U of the molds by the inner airway grooves 10b and 10b formed on the inner surfaces U and U of the first and second rough molds 2 and 3 is formed in the vertical direction and the circumferential direction. Flow in the direction. On the other hand, the entire first and second rough molds 2 and 3 are cooled by the cooling gas R <b> 1 from the main cooling unit 7. Further, the heat dissipation efficiency of both the rough molds 2 and 3 is also improved by the inner airway groove 10b and the outer grooves 10a formed on the mold outer surfaces S and S of the first and second rough molds 2 and 3.

  In the closed state of the first and second rough molds 2 and 3 (see FIG. 2), the nozzles 25 and 25 enter from both left and right sides of the gap 26 between the first and second rough molds 2 and 3, and the first The cooling gas R <b> 2 is blown onto the inner surface U of the rough mold 2 and the inner surface U of the second rough mold 3. On the other hand, in the mold open state of the first and second rough molds 2 and 3 or in the state from mold close to mold open (see FIG. 4), the first rough mold 2 is caused by one nozzle 25 (left side in FIG. 4). The cooling gas R2 is blown onto the inner surface U of the first split mold 2A and the inner surface U of the first split mold 3A of the second rough mold 3, and the other nozzle 25 (right side in FIG. 4) The cooling gas R <b> 2 is blown onto the inner surface U of the second split mold 2 </ b> B of the first rough mold 2 and the inner surface U of the second split mold 3 </ b> B of the second rough mold 3. That is, the cooling gas R2 is blown to the inner surface U of the mold when the first and second rough molds 2 and 3 are in the mold closed state, the mold open state, or the mold closed state to the mold open state. The inner flesh portions 35 of the second rough molds 2 and 3 are effectively cooled.

  If it is set as the glass product shaping | molding apparatus 1 of this embodiment, the said spot from the vicinity of the mold | die inner surfaces U and U which oppose across the clearance gap 26 between the 1st, 2nd rough molds 2 and 3 by the spot cooling part 8. Since the cooling gas R2 is blown onto the inner surfaces U of the mold and cooled, sufficient cooling efficiency can be obtained without forming a cooling passage inside the mold. Therefore, parts such as piping for sending the cooling gas are less than in the case where the cooling passage is formed inside the molding die, and it is easy to construct the molding apparatus.

  In addition, it is not necessary to process each mold, and maintenance can be performed with less labor, thus reducing costs. Furthermore, since it is not necessary to form a cavity inside each mold, the strength of each mold is not reduced. And since the cooling gas R2 is sprayed around the 1st, 2nd rough molds 2 and 3, and the inner-wall part 35 (inside) of the said both rough molds 2 and 3 is gently cooled, it is in the glass molded product 100. There is no adverse effect, and the baffle mark is unlikely to shift. Thereby, the intensity | strength of a glass product can be improved.

  Further, the cooling air R2 blown to the inner surfaces U and U of the molds by the inner airway grooves 10b and 10b formed on the inner surfaces U and U of the first and second rough molds 2 and 3 is longitudinally and circumferentially. Since it flows in the direction, the cooling gas R2 is diffused in multiple directions, and the cooling efficiency by the cooling gas R2 can be improved. The cooling gas R2 can be blown out from the nozzles 25 and 25 when the first and second rough molds 2 and 3 are either closed, open, or closed. Since the cooling gas R2 is blown onto the mold inner surfaces U and U from the vicinity of the mold inner surfaces U and U, the cooling timing and the cooling time are not limited, and the glass molded product can be formed with a finer cooling pattern. Can be molded. Thereby, the quality of the glass product can be further improved.

  The spot cooling unit 8 of the cooling mechanism 5 includes a cooling gas generating means 20 that generates a cooling gas, a gas pipe 21 that sends the cooling gas, and a gap 26 between the first and second rough molds 2 and 3. Therefore, it can be installed with a small space and is not restricted by other members provided around the apparatus.

  The nozzle 25 of each spraying part 22 is provided with a tip hole 28 that blows out the cooling gas R2 toward the tip of the nozzle 25 and a side hole 29 that blows out the cooling gas R2 toward the side of the nozzle 25. Therefore, the cooling gas R2 can be sprayed from the vicinity of the mold inner surfaces U, U of the first and second rough molds 2, 3 over a larger range of the mold inner surfaces U, U. Furthermore, each nozzle 25 is provided corresponding to the upper part of the rough molds 2 and 3 corresponding to the lower part 100u of the glass molded product 100 formed by the first and second rough molds 2 and 3. Therefore, it can cool from the lower part 100u of the glass molded product 100. Thereby, the lower part (including the bottom part) 100u of the glass molded product 100 is effectively cooled, and displacement of the baffle mark can be prevented. Moreover, each nozzle 25 was released because the cooling gas R2 was not directly applied to the glass molded product 100 released from the first and second rough molds 2 and 3. The influence by the cooling gas R2 directly hitting the glass molded product 100 can be suppressed.

  The glass product forming apparatus 1 according to the present embodiment is an apparatus for carrying out a mold cooling method for cooling molds arranged close to each other in order to simultaneously mold two glass molded articles with a cooling gas. It is an example. The mold cooling method using the glass product molding apparatus 1 includes a mold inner surface U from the vicinity of the mold inner surfaces U and U facing the gap 26 between the first and second rough molds 2 and 3. The first and second rough molds 2 and 3 are cooled by blowing a cooling gas R2 blown from the nozzles 25 and 25 to U and U.

  With such a mold cooling method, the mold inner surfaces U and U are cooled from the vicinity of the mold inner surfaces U and U facing each other with a gap 26 between the first and second rough molds 2 and 3. Since the gas R2 is blown and cooled, sufficient cooling efficiency can be obtained without forming a cooling passage in the mold. Therefore, parts such as piping for sending the cooling gas are less than in the case where the cooling passage is formed inside the molding die, and it is easy to construct the molding apparatus.

  In addition, it is not necessary to process each mold, and maintenance can be performed with less labor, thus reducing costs. Furthermore, since it is not necessary to form a cavity inside each mold, the strength of each mold is not reduced. And since the cooling gas R2 is sprayed around the 1st, 2nd rough molds 2 and 3, and the inner-wall part (inside) 35 of the said both rough molds 2 and 3 is gently cooled, it is in the glass molded product 100 There is no adverse effect, and the baffle mark is unlikely to shift. Thereby, the intensity | strength of a glass product can be improved.

  The embodiment disclosed above is an example and is not restrictive. In the present embodiment, the present invention is applied to an apparatus used in a press process of the press and blow method, but the present invention is applied to an apparatus used in the same blow process and each blow process of the blow and blow system. May be. It is good also as a glass product shaping | molding apparatus provided with the 3 or more shaping | molding die arrange | positioned mutually close in order to shape | mold 3 or more glass molded articles simultaneously. For example, when three molds are provided, three molds are arranged in a straight line and nozzles are arranged in two gaps, or three molds are arranged in a radial pattern and nozzles are arranged in three gaps. Can be mentioned.

  Although the thing of this embodiment which consists of a cooling gas generation means, gas piping, and a spraying part was mentioned as an example of a spot cooling part, another structure is also employable. Further, the airway groove formed on the inner surface of the mold can take various forms. The number, position, length, and width of the longitudinal grooves and circumferential grooves may be changed, or only the oblique grooves formed in the oblique direction, or the oblique grooves, the longitudinal grooves, and the circumferential grooves may be combined.

  Of course, the configuration of the mold and the configuration of the peripheral equipment of the mold can be appropriately changed. The shape, length, angle, position, etc. of the nozzle can also be changed as appropriate. Note that the scope of the present invention is not limited to the above-described embodiment, but is defined by the scope of the claims, and includes meanings equivalent to the scope of the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 1 Glassware shaping | molding apparatus 2 1st rough type 2A 1st division type 2B 2nd division type 3 2nd rough type 3A 1st division type 3B 2nd division type 4 Support means 7 Main cooling part 8 Spot cooling part 10a Outside Groove 10b Inner airway groove 12 Circumferential groove 13 Vertical groove 20 Cooling gas generating means 21 Gas pipe 22 Spraying part 24 Introducing pipe 25 Nozzle 26 Clearance 35 Inner part R1 Cooling gas R2 Cooling gas U-shaped inner side surface α Introducing angle

Claims (9)

In a glass product forming apparatus having a plurality of molds arranged close to each other to form a plurality of glass molded articles at the same time, and a cooling mechanism for cooling the plurality of molds with a cooling gas,
The cooling mechanism includes a spot cooling unit that blows the cooling gas to the inner surface of the mold from the vicinity of the inner surface of the mold facing the gaps between the plurality of molds. .   2. The glass product forming apparatus according to claim 1, wherein an airway groove for diffusing the sprayed cooling gas in multiple directions is formed on an inner surface of each of the forming dies. Each of the molding dies is configured by combining a plurality of divided dies so that they can be freely opened and closed.
The spot cooling unit is configured to be able to spray the cooling gas onto the inner surface of the mold from the vicinity of the inner surface of the mold when the molding die is in an open state or a closed state. The glass product forming apparatus according to claim 1 or 2.   The spot cooling unit includes a cooling gas generation unit that generates the cooling gas, a gas pipe that sends the cooling gas from the cooling gas generation unit to the vicinity of the plurality of molds, and the cooling gas that is sent through the gas pipe The glass product forming apparatus according to any one of claims 1 to 3, wherein the glass product forming apparatus is configured by a spraying portion that introduces the gas into the gap and blows the inner surface of the mold.   The spray unit includes an introduction pipe provided over the vicinity of the gap from the port of the gas pipe, and an elongated nozzle provided in the introduction pipe and entering the gap. The nozzle includes the nozzle 5. The glass product forming apparatus according to claim 4, wherein a tip hole for blowing the cooling gas toward the tip of the nozzle and a side hole for blowing the cooling gas toward the side of the nozzle are provided.   6. The glass product according to claim 5, wherein the nozzle is provided in correspondence with an upper portion of each mold corresponding to a lower portion of the glass molded product molded by each of the molds. Molding equipment.   The glass product forming apparatus according to claim 5 or 6, wherein the nozzle is provided so that the cooling gas does not directly hit the glass molded product released from each of the forming dies. .   The said glassware shaping | molding apparatus is applied to the apparatus used at the press process of a press and blow system, The said some shaping | molding die is comprised as a rough type | mold for forming a parison. Glass product forming equipment. In a cooling method of a molding die in which a plurality of molding dies arranged close to each other to form a plurality of glass moldings at the same time are cooled by a cooling gas,
A cooling method of a molding die, wherein the respective molding dies are cooled by blowing the cooling gas onto the inner side surface of the die from the vicinity of the inner side surface of the die facing each other with a gap between the plurality of molding dies.

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