JPH04244827A - Manufacture of housing panel - Google Patents

Abstract

PURPOSE:To equalize the surface texture and dimensional accuracy of each panel, and to make the quality of a housing uniform in the housing composed of a plurality of the panels obtained by blow-molding a thermoplastic resin. CONSTITUTION:A unit panel monolithic-molded through one-time blow molding is cut and each panel 7, 8, 9 is acquired, and the hollow sections of each panel 7, 8, 9 are filled with fillers 17 improving the heat-insulating properties, sound insulation and rigidity, thus sealing the hollow sections.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing synthetic resin housing panels that constitute various housings for furniture, housing equipment, electrical equipment, and the like.

0002

[Prior Art] A housing panel made of synthetic resin that constitutes various housings for furniture, housing equipment, electrical equipment, etc., in which foamed resin is filled between two panels to improve heat insulation, soundproofing, and rigidity. This has been known for a long time. On the other hand, in the field of blow molding, a method for manufacturing a hollow body in which a hollow body is blow molded and a filler is filled into the hollow part from the blow holes during blow molding is described in, for example, Japanese Patent Laid-Open No. 48-45559. It is known as. Furthermore, a manufacturing method is also known in which a hollow body is blow-molded and then a filler is filled into the hollow part through the blow hole.

[0003] Generally, the various types of housings described above are
For example, a door or a drawer is provided on the front surface, and the front surface thereof is composed of a unit panel.

0004

[Problems to be Solved by the Invention] By the way, when manufacturing housing panels using blow molding technology, each panel constituting the housing is individually blow molded, but there are some differences in the molding conditions of each panel. Since this is unavoidable, it is unavoidable that each panel of the unit panel will have a different texture and dimensional accuracy. For this reason, the problem with housings made of unit panels is that the surface texture, especially on the front surface, varies considerably, dimensional accuracy decreases, quality is not uniform, and the appearance is impaired. .

[0005] The present invention was made in order to solve the conventional problems, and the unit panels constituting the housing are integrally blow-molded, and after the blow-molding, the unit panels are cut to separate each panel. By doing so, we aim to make the surface texture of each panel that makes up the housing uniform and improve the dimensional accuracy, thereby improving the quality of the housing that is made up of unit panels. An object of the present invention is to provide a method for manufacturing a housing panel that can improve the workability of filling the housing panel.

[0006]

[Means for Solving the Problems] The present invention has developed the following method as a technical means to achieve the object. That is, a method for manufacturing a housing panel in which a hollow part is formed by blow molding a thermoplastic synthetic resin, a pair of opposing walls separated from each other, and a peripheral end wall that closes the peripheral end surface, and the hollow part is filled with a filler material. Then, a unit panel with the size of multiple panels that make up one housing is integrally molded by blow molding, and then the unit panel is cut into each panel that makes up the housing, and each panel is cut into pieces. A method for manufacturing a housing panel, comprising the steps of: filling the hollow portion with a filler; and attaching to each panel an edge member that closes the open end surface of each panel to seal the hollow portion; It is.

[0007] Furthermore, a housing panel is manufactured by blow molding a thermoplastic synthetic resin to form a hollow portion with a pair of opposing walls separated from each other and a peripheral end wall that closes the peripheral end surface, and the hollow portion is filled with a filler. A manufacturing method in which a unit panel of the size of a plurality of panels constituting one housing is integrally molded by blow molding, the hollow part of the blow molded unit panel is filled with a filler, and the A housing panel characterized in that the unit panel is cut into each panel constituting the housing, and an edge member is attached to each panel to close the open surface of the peripheral end surface of the unit panel to seal the hollow part. This is the manufacturing method.

[0008]

[Operation] According to the method of manufacturing a housing panel according to the present invention, the unit panel constituting one housing is
Molded in one piece by blow molding. After blow molding, the unit panels are cut into individual panels. In the first means of the present invention, the insulation property of the panel is
It is filled with filler to improve sound insulation and rigidity. An edge member is attached to the open surface of the peripheral end surface of each panel, and the surface is sealed.

In the second aspect of the present invention, after the unit panels are integrally blow-molded, the hollow portions of the unit panels are filled with a filler. Then, the unit panel filled with the filler material is cut into individual panels, and an edge member is attached to the open surface of the peripheral end surface of each panel, which is sealed.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 4 are perspective views showing a first embodiment of the present invention. FIG. 1 shows the blow molding form of a unit panel. 1, 1 is a divided mold, 2 is a cavity, 3 is an extrusion head, 4 is a blow nozzle, and the parison 5 of the plasticized thermoplastic resin extruded from the extrusion head 3 is placed between the divided molds 1, 1. Pressurized fluid is blown from the blow nozzle 4 to form a unit panel shaped along the cavity 2 in one blow molding process. FIG. 2 shows the blow-molded unit panel 6 described above. 4a is a blow hole created by the blow nozzle 4.

The unit panel 6 that has been integrally blow-molded as shown in FIG. 2 is cut using a cutting device at the portion indicated by the two-dot chain line in the same figure, and as shown in FIG. Let's call them panels 7, 8, and 9.

Furthermore, as shown in FIG. 3, each panel 7, 8
, 9, the panel 7 is turned upside down so that the end face 10 opened by cutting faces upward. Since the upper and lower end surfaces of the panel 8 are opened by cutting, one end surface is sealed by attaching an edge member 11 in advance, and the end surface 12 opened by cutting is directed upward. Since the upper end surface of the panel 9 is opened by cutting and the lower end surface is closed, the open end surface 13 of the panel 9 is kept facing upward.

[0013] Next, filler material is filled from the upwardly open end surfaces 10, 12, 13 of each panel 7, 8, 9, respectively. Then, the open end surface 10 of the panel 7, the panel 8
Each of the panels 7, 8, which is sealed by attaching edge members 14, 15, 16 to the open end surface 12 of the panel 9 and the open end surface 13 of the panel 9, and filling the hollow part with a filler 17,
9 is composed. Note that, if desired, a filling jig is used for each panel during filling.

Unit panel 6, that is, each panel 7
, 8 and 9 are suitable for blow molding, such as ABS resin, polypropylene resin, and modified polyphenylene oxide resin. The filler 17 is for improving the heat insulation, soundproofing, and rigidity of the panel, and is a foamed resin such as polyurethane, polystyrene, or polyethylene.

Each of the panels 7, 8, and 9 manufactured by the process of Example 1 is attached to a kitchen sink 18, as shown in FIG.
This constitutes the front of the housing. That is,
The panel 7 constitutes a drawer 19, the panel 8 constitutes a door 20 on the left side, and the panel 8 constitutes a door 21 on the right side.

Each panel 7 manufactured as in Example 1,
8 and 9 are constructed by cutting the unit panel 6 integrally molded by one-time blow molding, so each panel 7
, 8, and 9 do not differ in the molding conditions, and therefore, each panel 7, 8, and 9 has a uniform surface texture and uniform dimensional accuracy. Therefore, the housing made up of the panels 7, 8, and 9 can be of uniform quality.

In addition, in the manufacturing process of each panel 7, 8, 9, the end surfaces 10, 12 opened by cutting them are
, 13 have large openings over the entire end face, the filling operation with the filler 17 is easy, and moreover, the filling amount per hour can be increased to improve work efficiency. Note that the unit panel is, for example, the door 21 on the right side.
It may also be a collection of the same type of panels that includes a plurality of panels.

(Second Embodiment) A second embodiment of the present invention is shown in FIGS. 5 to 7. In this other embodiment, similarly to the first embodiment, the unit panel 6 is integrally formed by one blow molding, and each panel 22, 23, 24, 25, and 26 is cut after the blow molding. The difference lies in the step of filling the filler 17 after blow molding and before cutting the integrally molded unit panel 6. 4a is a blow hole.

In the second embodiment, since the integral unit panel 6 is filled with the filler 17 as described above, when the unit panel 6 is blow-molded, a bulge 27 is formed on the upper end surface of the unit panel 6. After molding, the swollen portion 27 is
Cut at the part to form a large opening for filling the filling material. Note that the filling opening portion of 27a is the same as that of 27b after being filled with the filler material.
Cut at the part.

FIG. 7 shows the above-mentioned panels 22, 23, 24.
, 25, and 26 are illustrated. Reference numeral 29 denotes an edge member attached to the entire circumferential end surface of each panel.

According to the second embodiment, the filler 17 is filled into each of the plurality of panels 22, 23, 24, 25, 26.
Since the filling material 17 is filled all at once at the stage of the unit panel 6, the filling work of the filling material 17 is simplified and the work efficiency is improved. Furthermore, only one jig can be used during filling.

[0022]

[Effects of the Invention] The present invention provides the following effects.

That is, according to the present invention, it is possible to make the surface texture of each panel constituting the housing uniform and improve the dimensional accuracy, thereby improving the quality of the housing constituted by unit panels. Therefore, it is possible to improve the workability of filling the hollow portion of each panel with the filler material.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a blow molding mode of a first embodiment of the present invention.

FIG. 2 is a perspective view of a blow-molded unit panel.

FIG. 3 is a perspective view of each panel, showing the state before the edge members are attached.

FIG. 4 is a front view of a kitchen sink configured with panels.

FIG. 5 is a sectional view showing a blow molding mode of a second embodiment of the present invention.

FIG. 6 is a perspective view of a blow-molded unit panel.

FIG. 7 is a perspective view of a kitchen sink configured with panels.

[Explanation of symbols]

1, 1 Split mold 2 Cavity 3 Extrusion head 4 Blow nozzle 5 Parison 6 Unit panel 7, 8, 9 each panel 10, 12, 13 Opening surface 11, 14, 15, 16 Edge members 17 Filling member

Claims (2)

[Claims] Claim 1: A housing panel made of blow molded thermoplastic synthetic resin, forming a hollow part with a pair of opposing walls spaced apart from each other and a peripheral end wall closing the peripheral end surface, and filling the hollow part with a filler. A manufacturing method in which a unit panel having the size of a plurality of panels constituting one housing is integrally molded by blow molding, then the unit panel is cut into each panel constituting the housing, and each panel is A method for producing a housing panel, comprising the steps of: filling the hollow portion with a filler in each panel; and sealing the hollow portion by attaching to each panel an edge member that closes the open peripheral end surface of the housing panel. . 2. A housing panel formed by blow molding a thermoplastic synthetic resin to form a hollow portion with a pair of opposing walls spaced apart from each other and a peripheral end wall closing the peripheral end surface thereof, and filling the hollow portion with a filler. A manufacturing method in which a unit panel of the size of a plurality of panels constituting one housing is integrally molded by blow molding, the hollow part of the blow molded unit panel is filled with a filler, and the A housing panel characterized in that the unit panel is cut into each panel constituting the housing, and an edge member is attached to each panel to close the open surface of the peripheral end surface of the unit panel to seal the hollow part. Production method.