JP2004210569A - Apparatus and method for shaping glass product, and baffle and baffle holder device used therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus or the like for shaping a glass product, with which the glass product can be manufactured by a method similar to a conventional method, that is to say, a press-and-blow method or a blow-and-blow method even when the glass product has a complicated shape such that an upper part has a spherical shape or a projected part. <P>SOLUTION: The shaping apparatus is characterized in that the baffle is made into a divided type so that the baffle can be opened or closed, and a parison is formed astride a coarse mold and the baffle. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus and a method for molding glass products such as glass bottles, glass containers and glass lids, and baffles and baffle holders used for them. More specifically, the present invention relates to glass products having complex shapes such as projections. And a baffle and a baffle holder device used therefor.
[0002]
[Prior art]
Conventionally, glass bottles are manufactured by using a glass bottle forming apparatus called an IS machine (individual section machine) to first roughly form a gob into a semi-finished parison and then finish form the parison. Take the process of completing a glass bottle. The rough molding process from the gob to the parison is performed by press molding or blow molding. On the other hand, the finishing step from a parison is generally performed by blow molding.
[0003]
The method of employing press molding in the rough mold process (that is, rough mold process: press molding, finish mold process: blow molding) is called a press and blow method. It is commonly employed to make wide-mouthed glass bottles. On the other hand, a method that employs blow molding in the rough mold process (that is, the rough mold process: blow molding, the finish mold process: blow molding) is called a blow-and-blow method. This is commonly used to produce narrow-mouthed glass bottles.
[0004]
Of these methods, the detailed steps of the press and blow method will be described with reference to FIG. 5. First, a lump G of molten glass called a gob is supplied into the rough mold 2 by the delivery device 1. The rough mold 2 is a split mold that can be divided into two, and receives the gob G from the upper opening with the mold closed and the lower opening closed by the mouth mold 3. When the gob G is supplied, the upper opening of the rough mold 2 is closed by the baffle 4. Next, the plunger 5 is pushed up and inserted from the mouth mold 3 into the rough mold 2 to press the gob G, and the parison P is formed from the gob G.
[0005]
In the rough mold 2, the parison is in an inverted state with the mouth facing down and the bottom facing upward. Therefore, after opening the rough mold 2, the parison is taken out using the inverting device 6, and the mouth is opened. The parison is inverted and transferred to the finishing mold 7 so that the parison is in an upright state with the bottom facing down. The finishing die 7 is also a split die that can be split into two, and is closed with the parison inverted so as to receive the parison. The lower opening of the finishing die 7 is closed by the bottom die 8, and the upper opening is closed by the blow head 9. Then, the finished product K is formed by blowing, and is taken out using the takeout device 10.
[0006]
[Problems to be solved by the invention]
However, in the conventional glass bottle forming apparatus as described above, there is a limitation on the shape that can be manufactured as a glass product. For example, when manufacturing a lid of a glass container or the like having a form different from that of a normal glass bottle, a rough mold 2 having a mold shape corresponding to the entire shape of the lid including the lid body and the knob is manufactured. In addition to the complicated processing of the rough mold 2, the upper opening of the rough mold 2 (the portion corresponding to the knob of the lid) becomes extremely narrow, so that the gob can be supplied from the upper opening. No, making it extremely difficult to manufacture.
[0007]
In view of the above, the present invention has been made in view of the above problem, and even if the glass product has a complicated shape such as a spherical upper portion or a protruding portion, the same method as in the related art, that is, press and It is an object of the present invention to provide a glass product forming apparatus which can be manufactured by using a blow method or a blow-and-blow method, a forming method thereof, and a baffle and a baffle holder device used for the same.
[0008]
[Means for Solving the Problems]
The glass product forming apparatus according to the present invention supplies a gob into the rough mold through the opening, closes the opening with a baffle, and then presses or blows the inside of the rough mold to form a parison from the gob, and then Transfer the parison to the finishing die, blow the inside of the parison, and form a finished product from the parison.In the glassware forming device, the baffle is a split mold that can be opened and closed, and the parison is formed across the rough mold and the baffle. It is characterized by being comprised so that it may be performed.
[0009]
Then, the method for forming a glass product according to the present invention supplies a gob into the rough mold through the opening, closes the opening with a baffle, and then presses or blows the inside of the rough mold to form a parison from the gob. Then, the parison is transferred to a finishing mold, and the parison is straddled between the coarse mold and the baffle by forming the baffle into a split mold that can be opened and closed in the glass product forming method in which the parison is blown to form a finished product from the parison. And molded.
[0010]
According to the above configuration, when the inside of the rough mold is pressed or blown while the gob is supplied in the rough mold, the gob is also filled in the baffle, and the parison is formed across the rough mold and the baffle. Later, the parison is then transferred to a finishing mold and finished by blowing. The finish mold has a mold shape corresponding to the shape of the body of the finished product.
[0011]
In addition, the method for manufacturing a glass product according to the present invention is, in particular, a form in which the parison includes a main body and a protrusion protruding from the main body. It is suitable when molding with. Thereby, the opening of the rough mold does not become narrow corresponding to the protrusion, and the gob can be supplied into the rough mold without any trouble.
[0012]
Further, the baffle according to the present invention is a baffle for closing the opening of the rough mold in which the gob is supplied through the opening, and a continuous dividing into the rough mold to form a part of the parison. The baffle holder device according to the present invention has a function of holding the baffle and opening and closing the baffle.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
The apparatus for forming a glass product according to the present embodiment has the same configuration as that of a conventional glass bottle forming apparatus with respect to the configuration of the entire apparatus except for a characteristic portion. Therefore, prior to describing the features of the present embodiment, portions common to the conventional glass bottle forming apparatus will be specifically described with reference to FIG.
[0014]
In the roughing process, a baffle arm 43 that holds the baffle 4 is attached to the rod 41 a of the baffle cylinder 41. The baffle cylinder 41 is a means for performing the elevating operation of the baffle 4, and a spiral operation is added by a cam mechanism (not shown) below the baffle cylinder 41 as the elevating and lowering operation is performed. By the baffle cylinder 41, the baffle 4 raises (1) ascending (baffle raising) → (2) turning (avoiding the baffle) → (mold opening) → (parison removal) → (mold closing) → (gob supply) → ▲ 3 Four operations such as "reverse turning (baffle return) → (4) descent (baffle lowering)" are repeated.
[0015]
In the roughing process, the plunger 5 is attached to the tip of the rod 51a of the plunger cylinder 51. The plunger cylinder 51 is a means for executing the raising / lowering operation of the plunger 5, and by this means, the plunger 5 is moved from “(mold closing) → (1) ascending (plunger kickback: loading position) → (Gob supply) → (baffle down) → (2) rise (plunger up: press) → (baffle up) → (mold opening) → (3) down (plunger down: invert position). repeat.
[0016]
Next, in a transfer step of transferring the parison P from the rough die step to the finish die step, the inverting device 6 for inverting the parison P includes the rotating body 61 and the neck ring holder 62 attached to the rotating body 61. Have. The invert cylinder 63 is a means for performing a forward / reverse rotation operation of the rotating body 61, and a neck ring holder is provided by this means in which a rack provided on the rod 63 a and a pinion provided on the rotating body 61 mesh with each other. The mouth mold 3 held by a neck ring (not shown) attached to the tip of the cylinder 62 is “(baffle up) → (plunger down) → (rough mold 2 mold opening) → (finish mold 7 mold opening) ) → (1) Forward rotation (invert) → (mold closing of finishing die 7) → (2) Inversion (revert) → (mold closing of rough die 2).
[0017]
In the finishing die process, a blow arm 93 for holding the blow head 9 is attached to the rod 91a of the blow head cylinder 91. The blow head cylinder 91 is a means for performing the operation of raising and lowering the blow head 9, and a spiral operation is added by a cam mechanism (not shown) below the blow head cylinder 91 as the blow head 9 is raised and lowered. The blow head 9 is moved by the blow head cylinder 91 to “(mold opening) → (1) ascending (blow head raising) → (2) turning (blow head avoidance) → (take out) → (invert) → (mold closing) → Six operations such as (3) reverse rotation (blow head return) → (4) descent (blow head lower) → (5) pressurized air blow → (6) stop blow) are repeated.
[0018]
Next, in a takeout process following the finishing die process, the takeout device 10 for transferring the finished product K to the conveyor 11 includes a tong head 101 that holds a mouth of the finished product K. The take-out cylinder 102 is a means for performing the operation of raising and lowering the tongue head 101, and has a configuration in which a rack provided on the rod 102a and a pinion provided on the tongue arm 103 holding the tongue head 101 are engaged. The tongue head 101 repeats the reciprocating operation between the finishing die 7 side and the dead plate 12 side by the means and the turning means.
[0019]
The finished product K is actually moved to a position above the dead plate 12 adjacent to the conveyor 11 and is discharged from the dead plate 12 onto the conveyor 11 by the pusher 13. The conveyor 11 and the dead plate 12 each have an innumerable through hole, and the cooling air flowing through the duct 14 cools the finished product K through the through hole.
[0020]
The description of the parts common to the conventional glass bottle forming apparatus in the glass product forming apparatus according to the present embodiment is as described above. Next, FIG. 1 to FIG. Explanation will be given while taking into consideration.
[0021]
A feature of the present embodiment is that a glass lid having a shape in which an upper portion is protruded (in this embodiment, an animal shape) as shown in FIG. 1 can be easily manufactured. . In the conventional glass bottle forming apparatus, a rough mold 2 having a mold shape corresponding to the entire shape of the lid including the lid main body P1 as the main body and the knob P2 as the projection must be produced. Not only does the processing of the mold 2 become complicated, but also the upper opening (corresponding to the dimension L) of the rough mold 2 becomes extremely narrow, so that the gob G cannot be supplied from the upper opening of the rough mold 2 and the production is Although extremely difficult, such a problem does not occur in the molding apparatus according to the present embodiment.
[0022]
The reason is that, in the present embodiment, the cover body P1 is formed by the rough mold 2 and the knob P2 is formed by the baffle 4. That is, in the present embodiment, the baffle 4 is divided into the same type as the rough mold 2 and the baffle 4 has a shape corresponding to the shape of the knob P2, while the rough mold 2 corresponds to the shape of the lid body P1. The above problem is solved by adopting a mold shape.
[0023]
The baffle holder device 400 shown in FIGS. 2 to 4 is a device for functioning the two divided baffles 4 (4a, 4b), and is replaced by the baffle 4 and the baffle arm 43 of FIG. . The baffle holder device 400 is mainly configured by an opening / closing mechanism that causes the divided baffle pieces 4a and 4b to match each other (mold closed) or separates the divided baffle pieces 4a and 4b from each other (mold open). Is done.
[0024]
The baffle holder device 400 is attached to a rod 41a of a baffle cylinder 41 (baffle holder) via a baffle arm 401. Further, the baffle holders 402, 402 holding the baffle pieces 4a, 4b are slidably mounted on the holder bracket 403, and the baffle holders 402, 402 slide in a direction in which they approach each other to be in a mold-closed state. The baffle holders 402, 402 slide in the direction away from each other to enter the mold open state.
[0025]
The holder bracket 403 includes a base 403a formed on the lower surface with a guide groove 403b for accommodating the sliding portions of the baffle holders 402, 402, and a boss 403c protruding from the upper surface of the base 403a. The linear shaft 404 is mounted on the base 403a such that a part of the linear shaft 404 projects into the guide groove 403b. The linear shafts 404, 404 are also inserted through sliding portions of the baffle holders 402, 402 housed in the guide grooves 403b, respectively. It becomes slidable along.
[0026]
The boss portion 403c is for holding the holder bracket 403 on the baffle arm 401. The boss portion 403c is inserted and mounted in a holder portion 401a provided at the tip of the baffle arm 401, and the baffle arm 401 and the holder The bracket 403 is integrated.
[0027]
Further, the baffle holder device 400 includes a driving mechanism for sliding the baffle holders 402, 402. This drive mechanism includes a cylinder 405 as a drive source, and a link system that connects a rod 405a of the cylinder 405 and each baffle holder 402. The cylinder 405 is fixed to the holder bracket 403, and the rod 405a extends and contracts in the sliding direction of the baffle holders 402, 402 (the direction perpendicular to the central axis of the baffle 4).
[0028]
The link system includes a lever 406 rotatable about an axis orthogonal to the sliding direction of the baffle holders 402, 402, and a first portion rotated by a rod 405a (more precisely, a bracket 405b attached to the tip of the rod 405a). A first link member 407 freely supported and a second portion rotatably supported by the lever 406; a first portion rotatably supported by the baffle holder 402 and a second portion rotatably supported by the lever 406 And second link members 408, 408. The first link member 407 rotates the lever 406 as the rod 405a expands and contracts, and the second link member 408 slides the baffle holder 402 as the lever 406 rotates.
[0029]
The connection between the lever 406 and the first link member 407, the connection between the lever 406 and the second link member 408, and the connection between the second link member 408 and the baffle holder 402 are performed by using a link pin with an oilless bush 409 fitted outside. The connecting portion of the baffle holder 402 with the second link member 408 is a rib 402a that protrudes from a sliding portion of the baffle holder 402 and protrudes from a cutout portion of the holder bracket 403.
[0030]
Also, returning to the description, the baffle pieces 4a and 4b and the baffle holder 402 are integrated by screwing the baffle holder bolt 411 into a hole communicating the two with the baffle pieces 4a and 4b mounted on the baffle holder 402. The linear shaft 404 is prevented from falling off by a C-shaped retaining ring 412 fitted to the end of the linear shaft 404. Among the linear shaft 404, the baffle holder 402 The non-lubricating bush 413 is externally fitted to the portion where the slides. Further, the linear shafts 404 may be cooled by passing cooling air through the holder bracket 403.
[0031]
The configuration of the characteristic portion of the molding apparatus according to the present embodiment has been described above, and the operation of the characteristic portion will be described next.
[0032]
In the rough mold process, the baffle 4 of the baffle holder device 400 is in a mold closed state at an initial stage. First, when the rough mold 2 enters the mold closed state and the gob G is supplied, “baffle return” is executed, and then “baffle lowering” is executed. Thereby, the gob G is confined in the continuous space of the mold space in the rough mold 2 and the mold space in the baffle 4 forming the mold as shown in FIG.
[0033]
In this state, the plunger 5 rises from the loading position, and the press is performed. At this time, the gob G is naturally filled also in the baffle 4, and the parison P which is a rough molded product of the form as shown in FIG. Note that the mating surface of the rough mold 2 and the mating surface of the baffle 4 coincide with each other, so that a single seam is formed on the outer surface of the parison P along the outline thereof.
[0034]
When the plunger 5 is lowered to the invert position and the press is completed, first, the rough mold 2 and the baffle 4 are in the mold open state. When the mold release of the rough mold 2 and the baffle 4 is completed, “baffle raising” is performed. When the “baffle avoidance” is executed next, the upper position of the rough mold 2 is opened, and in this state, the inverting device 6 is operated to perform the reverse transfer of the parison P.
[0035]
In the finishing die process, the parison P is blow-molded. Then, as a result, a finished product K is completed. Although not particularly described, the finishing die 7 has a shape corresponding to both the shape of the lid main body portion P1 and the shape of the knob portion P2 of the lid P. In the finishing step, since the conventional problem (gob supply difficulty) as in the rough die step does not occur, the above-described finishing die 7 may be used. A configuration like the baffle holder device 400 may be used, and the finishing die 7 may correspond to the lid body portion P1 of the lid, and the bottom die 8 may correspond to the knob portion P2 of the lid.
[0036]
Thus, according to the molding apparatus according to the present embodiment, when manufacturing a lid or the like of a glass container having a different shape from a normal glass bottle, processing of the rough mold 2 is not complicated, and It is not difficult to supply the gob from the upper opening of the rough mold 2, and therefore, even if the upper part is spherical or has a complicated shape such as protruding like a glass lid, Production by the press and blow method becomes easy.
[0037]
In addition, in the conventional glass bottle forming apparatus, the baffle arm 43 is replaced with the baffle holder apparatus 400 according to the present embodiment, and the rough mold 2, the mouth mold 3, the baffle 4, and the finish mold 7 are formed in the form of the glass product to be molded. Therefore, the existing equipment can be used, the equipment cost can be reduced, and special glass products can be manufactured at a low cost.
[0038]
The molding apparatus according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. Therefore, it goes without saying that the molding apparatus according to the present invention is not limited to the specific configuration of the baffle holder apparatus 400 according to the above embodiment.
[0039]
Further, in the above embodiment, since the object is a glass lid, a glass product suitable for the press-and-blow method, the molding apparatus employing this method is referred to, but the present invention relates to the blow-and-blow method. It is needless to say that the invention also includes a molding device employing
[0040]
In the above-described embodiment, the lid body P1 of the lid is formed by the rough mold 2 and the knob P2 of the lid is formed by the baffle 4. However, the present invention is not limited to this. The upper part of the lid main body P1 (near the base of the knob P2) may be formed together with the knob P2 in the baffle 4, or the base of the knob P2 may be formed into a rough mold 2 together with the lid main P1. It may be formed by molding.
[0041]
【The invention's effect】
As described above, according to the present invention, when the inside of the rough mold is pressed or blown while the gob is supplied in the rough mold, the gob is also filled in the baffle and straddles the rough mold and the baffle. Since the parison is molded, the problem of the conventional glass bottle molding equipment is eliminated, and it has a complicated shape such as a glass container lid, such as a spherical top or protruding top Even glass products can be easily manufactured.
[Brief description of the drawings]
FIG. 1 is a front view of a glass product manufactured by a forming apparatus according to an embodiment.
FIG. 2 is an exploded perspective view of a baffle holder device that is a component of the molding device according to the embodiment.
FIG. 3 is an assembled perspective view of the baffle holder device according to the embodiment, showing a mold open state.
FIG. 4 is an assembled perspective view of the baffle holder device according to the embodiment, showing a mold closed state.
FIG. 5 shows a system configuration diagram of a conventional molding apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Delivery apparatus 2 Rough type 3 port type 4 Baffle 4a, 4b Baffle piece 41 Baffle cylinder 400 Baffle holder device 401 Baffle arm 402 Baffle holder (slide member)
403 Holder bracket (slidable member)
404 linear shaft (slidable member)
405 Cylinder 406 Lever 407 First link member 408 Second link member 5 Plunger 51 Plunger cylinder 6 Inverter 62 Neck ring holder 63 Invert cylinder 7 Finishing die 8 Bottom die 9 Blow head 91 Blow head cylinder 10 Take-out device 101 Tong head 102 Takeout cylinder 11 Conveyor 12 Dead plate G Gob P Parison K Finished product (glassware)
P1 Lid body P2 Knob

Claims (5)

After the gob is supplied into the rough mold through the opening and the opening is closed with a baffle, the inside of the rough mold is pressed or blown to form a parison from the gob, and then the parison is transferred to a finishing mold and blown in the parison. In a glass product forming apparatus for forming a finished product from a parison, the baffle is a split mold that can be opened and closed, and the parison is configured to be formed across the rough mold and the baffle. Glassware forming equipment. After the gob is supplied into the rough mold through the opening and the opening is closed with a baffle, the inside of the rough mold is pressed or blown to form a parison from the gob, and then the parison is transferred to a finishing mold and blown in the parison. In a method for forming a glass product, a finished product is formed from a parison, and by forming the baffle into a split mold that can be opened and closed, the parison is formed by straddling the rough mold and the baffle. Molding method. 3. The parison according to claim 2, wherein the parison is formed of a main body and a protrusion protruding from the main body, and the main body is formed by a rough mold and the protrusion is formed by a baffle. Glassware molding method. A baffle for closing the opening of the rough mold in which the gob is supplied through the opening, wherein the baffle is formed as a continuous split mold in the rough mold to form a part of the parison. Baffle to do. A baffle holder device having a function of holding the baffle according to claim 4 and opening and closing the baffle.

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