JP2006124985A - Shaping method for glazing channel for double glazing and its shaping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To extrude and shape a glazing channel to keep fixed quality always even if double glazing has dimensional error to prevent improper shaping and shape the glazing channel having high precision. <P>SOLUTION: Divided shaping dies 13a, 13b are constituted to adjust a position by a position adjusting mechanism 15 by corresponding to width H of the double glazing 5 and form a space part X (a shaped part) for shaping the glazing channel 6 by letting the divided shaping dies 13a, 13b adhere closely to upper and lower faces of a peripheral fringe part of the double glazing 5. An extrusion device 14 is composed of plungers 17a, 17b connected with the divided shaping dies 13a, 13b through pipes 16a, 16b and an extrusion machine 18. Discharge holes 19a, 19b communicating with the space part X (the shaped part) are formed in the divided shaping dies 13a, 13b, and the pipes 16a, 16b to be connected with the plunger 17 are connected with the discharge holes 19a, 19b, respectively. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method and an apparatus for forming a glazing channel for a double glazing, and more specifically, prevents a glazing channel from being poorly formed on the peripheral edge of the double glazing and forms a highly accurate glazing channel. The present invention relates to a method for forming a glazing channel for multilayer glass and a forming apparatus therefor.

  2. Description of the Related Art Conventionally, as shown in FIGS. 2 to 4, when a multi-layer glass 5 is attached to a sash frame 1 having a concave cross section constituting a window frame made of aluminum or the like, as shown in FIGS. A space layer 4 is formed between a plurality of glass plates 2a and 2b via a spacer 3 made of a primary sealing material 3a and a secondary sealing material 3b made of a rubber-like elastic body, and a spacer member 3c, and further a multilayer glass. A glazing channel 6 (sealing frame) that is extruded into an irregular cross section having a concave cross section for the purpose of watertightness and airtightness of the gap between the sash frame 1 and the multilayer glass 5 is fitted and attached to the peripheral edge of There is a method of fitting and mounting the multi-layer glass 5 on which the glazing channel 6 is mounted with a setting block 7 interposed on the bottom surface of the sash frame 1 (see, for example, Patent Document 1).

  The glazing channel 6 having a concave cross section as described above is formed by extruding a soft / hard vinyl chloride resin (PVC) into an irregular cross section by an extrusion molding machine, and is a multilayer glass having a plurality of drain holes 8 formed on the bottom surface. By fitting and attaching to the peripheral portion of the multi-layer glass 5 before attaching the sash frame 5 to the sash frame 1, while maintaining watertightness and airtightness with the outside, relaxation of stress due to wind pressure, prevention of cracking due to external force, etc. The function is added to the multilayer glass 5.

  However, since the method of attaching the glazing channel to such a multilayer glass is manually performed, it takes a lot of labor and man-hours, and the length of the glazing channel 6 formed in advance and the multilayer glass 5 Since the perimeter of the glazing channel 6 is cut each time according to the perimeter of the multilayer glass 5, there is a problem that the end of the glazing channel 6 is wasted.

  In order to solve such a problem, a method for producing a multi-layer glass in which the glazing channel 6 is integrated by extrusion molding at the peripheral portion of the multi-layer glass 5 to improve working efficiency has been proposed (for example, Patent Document 2).

  In this manufacturing method, as shown in FIG. 5, the peripheral portion of the multi-layer glass 5 installed horizontally is inserted between a pair of slide dies 10 housed in a forming die 9 having a U-shaped cross section, and the slide die 10 is inserted into a cylinder. In this state, the molding material 6 a (molten resin) of the glazing channel 6 is extruded and molded into the space X between the slide die 10 and the multi-layer glass 5 in a state of being crimped via 11. In FIG. 5, the same components as those in the conventional examples of FIGS.

  However, in such a method, the multi-layer glass 5 has large dimensional variations such as the parallelism of the glass and the step difference of the terminal surface as compared with the single-layer glass, and the method of pressing the slide die 10 from one direction is partially used. There was a problem that leakage of the molten molding material 6a and uneven thickness occurred.

In addition, when the thickness of the multilayer glass is different, the slide amount of the slide die is also different, and the flow path in the slide die is changed, so that the extrusion amount on both sides or the dimension after molding is different across the multilayer glass. There was also a problem.
JP 2004-3318 A Japanese Patent No. 3135842

  The present invention pays attention to such conventional problems, and even if there is a dimensional error in the multi-layer glass, the glazing channel can be extruded to always maintain a constant quality, thereby preventing molding defects and highly accurate glazing. It is an object of the present invention to provide a method for forming a glazing channel for a multi-layer glass and a forming apparatus thereof capable of forming a channel.

  In order to achieve the above object, the present invention provides a method for forming a glazing channel for a double-glazed glass according to the present invention. After the die is detachably disposed and the die is disposed on each of the multilayer glasses so that the position of each of the dies can be adjusted, between the molding die and the multilayer glass while moving at least one of the molding die or the multilayer glass. The gist is to apply the molding material of the glazing channel while continuously extruding.

  Here, the molding material of the glazing channel is a thermoplastic elastomer, and the molding material controlled to a constant pressure by an extrusion device is continuously discharged between the molding die and the multilayer glass. preferable.

  In order to achieve the above object, the present invention achieves the above-described object, and a split molding die that is detachably disposed on the upper and lower surfaces of the peripheral portion of the multi-layer glass disposed on the support base via a position adjusting mechanism, and the split molding die. And an extrusion apparatus that continuously extrudes the glazing channel molding material between the split molding die and the multilayer glass.

  Here, it is preferable that the extrusion apparatus includes a plunger and an extruder that are respectively connected to the division molding die.

  As described above, in a state where the multilayer glass is disposed sideways, while moving at least one of the molding die disposed on the peripheral edge of the multilayer glass or the multilayer glass, the gray is interposed between the molding die and the multilayer glass. By applying the molding material of the ging channel while continuously extruding, it is possible to prevent the molding failure of the glazing channel and to form a highly accurate glazing channel.

  This invention arrange | positions the division | segmentation division | segmentation shaping | molding die | dye which can adjust each position to the upper and lower surfaces of the peripheral part of the said multilayer glass arrange | positioned sideways as mentioned above so that attachment or detachment is possible, After being arranged so that the position can be adjusted, the molding material of the glazing channel is applied while continuously extruding between the molding die and the multilayer glass while moving at least one of the molding die or the multilayer glass. Therefore, even if there is a dimensional error in the double-glazed glass, the glazing channel can be extruded to always maintain a constant quality, and it is possible to prevent molding defects and form a highly accurate glazing channel. is there.

  Further, the forming apparatus for a glazing channel for double-glazed glass according to the present invention includes a split-forming die arranged detachably on the upper and lower surfaces of the peripheral edge of the double-glazed glass arranged on the support table via a position adjusting mechanism. The glazing channel has a relatively simple structure because it is connected to the split forming die and the extrusion device that continuously extrudes the molding material of the glazing channel between the split forming die and the multi-layer glass. In addition, the glazing channel is extruded so as to always maintain a constant quality, so that a highly accurate glazing channel can be formed.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.

  FIG. 1 shows a schematic configuration diagram of a forming apparatus for carrying out the method for forming a glazing channel for double-glazed glass according to the present invention. This forming apparatus is used to horizontally place a double-glazed glass 5 horizontally or at a fixed inclination angle. The space for the support base 12 to be arranged, the split-molding dies 13a and 13b that are detachably disposed on the upper and lower surfaces of the peripheral edge of the multilayer glass 5, and the space between the split-molding dies 13a and 13b and the multilayer glass 5 The part X (molding part) is composed of an extrusion device 14 for continuously extruding a molding material 6a made of an olefinic thermoplastic elastomer (TPO) or the like constituting the glazing channel 6 (sealing frame). .

  The multi-layer glass 5 has a secondary seal made of a primary sealing material 3a made of hot melt (adhesive), a thermoplastic resin material, or a reactive resin material between two glass plates 2a and 2b as in the conventional case. A space layer 4 is formed through a spacer 3 made of a material 3b and a spacer member 3c previously encapsulated or containing a desiccant with materials such as aluminum, thermoplastic resin, and thermoplastic elastomer. .

  The multi-layer glass 5 can be arbitrarily set at 0 ° to 45 ° with respect to the horizontal support base 12. Further, the support 12 does not have to be horizontal as long as the multi-layer glass 5 can be arranged horizontally or at a constant inclination angle, and may be inclined at a constant angle or continuously inclined. good.

  Further, the split forming dies 13a and 13b are fitted to a glass having a slight degree of parallelism of the glass or a step difference of the terminal surface in addition to the width adjustment by a position adjusting mechanism 15 such as a cylinder corresponding to the width H of the multilayer glass 5. The position can be adjusted, and the space forming portion X (molding portion) for forming the glazing channel 6 is formed by bringing the split forming dies 13a and 13b into close contact with the upper and lower surfaces of the peripheral portion of the multilayer glass 5. It is configured to be able to.

  The extrusion device 14 includes plungers 17a and 17b connected to the divided molding dies 13a and 13b via pipes 16a and 16b and an extruder 18, and the divided molding dies 13a and 13b include the space portion X. Discharge holes 19a and 19b communicating with the (molded portion) are formed, and pipes 16a and 16b connected to the plungers 17a and 17b are connected to the discharge holes 19a and 19b, respectively.

  Next, a method for continuously forming the glazing channel 6 by extrusion molding on the upper and lower surfaces of the peripheral edge portion of the multilayer glass 5 using the molding apparatus as described above will be described.

  First, the pre-formed multi-layer glass 5 is horizontally disposed on the support base 12, and the split forming dies 13 a and 13 b are disposed at predetermined positions on the upper and lower surfaces of the peripheral edge of the multi-layer glass 5, and the position adjusting mechanism 15. Thus, the formed portions of the divided forming dies 13a and 13b are brought into close contact with the upper and lower surfaces of the peripheral edge portion of the multilayer glass 5.

  From such a state, the extruder 18 of the extrusion apparatus 14 is driven to supply the molding material 6a made of a molten olefin-based thermoplastic elastomer (TPO) or the like to the plungers 17a and 17b. A molding material 6a having a predetermined pressure is discharged from 17b to the discharge holes 19a, 19b of the split molding dies 13a, 13b via the pipes 16a, 16b. And from the discharge holes 19a and 19b, the molding material 6a is extruded and molded into the space portion X (molding portion) between the split molding dies 13a and 13b and the multilayer glass 5.

  As the molding material 6a used in the present invention, any material can be used as long as it has air-tightness and water-tightness which are functions of the glazing channel 6 and can be extruded by being melted by heat. For example, in JISA 5756, material physical property standards for glazing channels are defined, but it is desirable to comply with these standards. Specific examples include thermoplastic resins such as vinyl chloride resins, thermoplastic elastomers such as olefins, polyamides, polyesters, silicones, fluorines, and urethanes.

  In the molding process of the glazing channel for multilayer glass according to the present invention, since it is necessary to take a short time interval between the processing of one sheet of the multilayer glass and one sheet, the heat resistance in the molten state of the molding material. The above-mentioned thermoplastic elastomer is suitable rather than vinyl chloride resin with low thermal stability. Among them, a dynamic vulcanization type olefin-based thermoplastic elastomer with low versatility and compression set is preferable. It can be used particularly effectively.

  At this time, one of the multilayer glass 5 or the split molding dies 13a and 13b is fixed, and the other is moved to continuously extrude the glazing channel 6 having a predetermined shape with respect to the peripheral edge of the multilayer glass 5. Is. The moving speed and the discharge pressure of the molding material 6a are arbitrarily set according to the thickness and size of the multilayer glass 5, and the multilayer glass 5 or the split molding dies 13a and 13b are moved simultaneously. It is also possible to mold.

  As described above, in the present invention, at least one of the split-molding dies 13a, 13b or the multilayer glass 5 disposed on the upper and lower surfaces of the peripheral edge of the multilayer glass 5 in a state where the multilayer glass 5 is laterally disposed on the support base 12. While the one side is moved, the molding material 6a of the glazing channel 6 is applied between the divided molding dies 13a, 13b and the multilayer glass 5 while continuously extruding, so that, for example, a dimensional error in the multilayer glass 5 (Even if there are variations in dimensions such as the parallelism of the glass and the level difference of the terminal surface), the gray can be maintained so as to always maintain a constant quality by attaching them while adjusting them by the divided molding dies 13a and 13b. The zigzag channel can be extruded to prevent molding defects and to form the glazing channel 6 with high accuracy.

  Furthermore, since the cutting work for adjusting the size of the glazing channel 6 is small, an efficient working form is possible, and the end of the glazing channel is not discarded as dust, so there is no adverse effect on the environment. It can also be called a process.

It is a schematic block diagram of the shaping | molding apparatus for enforcing the shaping | molding method of the glazing channel for multilayer glass of this invention. It is a partial cross section perspective view of a general window frame part. It is an expanded sectional view of the glazing channel with which the A section of FIG. 2 is mounted. It is sectional drawing of the sash assembly site | part which mounted | wore the sash frame with the multilayer glass which fitted and mounted the conventional glazing channel. It is an expanded sectional view of the manufacturing process of the conventional glazing channel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sash frame 2a, 2b Glass plate 3a Primary sealing material 3b Secondary sealing material 3c Spacer member 3 Spacer 4 Space layer 5 Double layer glass 6 Glazing channel 7 Setting block 8 Drain hole 9 Molding die 10 Slide die 11 Cylinder X space Part 6a Molding material 12 Support base 13a, 13b Division molding die 14 Extrusion device 15 Position adjustment mechanism 16a, 16b Pipe 17a, 17b Plunger 18 Extruder 19a, 19b Discharge hole H Width of multilayer glass

Claims (4)

In the method of forming a glazing channel for a double-glazed glass that is attached to a sash frame with a glazing channel interposed at the periphery of the double-glazed glass,
On the upper and lower surfaces of the peripheral portion of the multi-layer glass placed sideways, each of the divided forming dies that can be adjusted in position is detachably arranged, and each die is arranged in each of the multi-layer glass so that the position can be adjusted, respectively. A multi-layer glass, wherein a forming material of a glazing channel is applied while continuously extruding between the forming die and the multi-layer glass while moving at least one of the forming die or the multi-layer glass. Forming method for glazing channel. The method for molding a glazing channel for a double-glazed glass according to claim 1, wherein the molding material of the glazing channel is a thermoplastic elastomer. The method for forming a glazing channel for a multi-layer glass according to claim 1 or 2, wherein the forming material controlled to a constant pressure by an extrusion device is continuously discharged between the forming die and the multi-layer glass. A split-molding die that is detachably disposed on the upper and lower surfaces of the peripheral edge portion of the multilayer glass disposed sideways on the support base, and a split-molding die and the multilayer glass connected to the split-molding die. A glazing channel molding device for double-glazed glass, comprising: an extrusion device that continuously extrudes a molding material for a glazing channel.

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