JP3997604B2 - Manufacturing method of stove top plate seal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stove top plate seal portion.
[0002]
[Prior art]
The structure of a conventional top plate seal portion is shown in FIG. 4, and a structure in which a molded annular rubber is fitted and attached to a flange portion that is bent inward from the outer periphery of the top plate as shown in FIG. It has become.
[0003]
[Problems to be solved by the invention]
However, with the structure of the conventional top plate seal part, it takes time to fit the rubber at the time of manufacture, making it difficult to automate the manufacturing process and increasing the cost, and it is easy to remove the seal rubber when cleaning the top plate. Furthermore, since the material is solid rubber, there is a problem that the amount of deformation is small and the distance that can seal the gap due to warpage between the kitchen counter and the top plate is small.
[0004]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. The first object of the present invention is to propose a method for manufacturing a top plate seal portion that has high sealing properties and cannot be easily removed. The second object is to propose a foamed shape that can be increased and the amount of deflection can be increased, and a manufacturing method thereof.
[0005]
[Means for Solving the Problems]
In order to achieve the first object of the present invention, a foamed resin material is applied to the periphery of the counter installation surface of the top plate, and is heated and foamed into various shapes using a mold. The amount of deformation can be increased by devising the shape without being detached because it is bonded and cured.
[0006]
In order to achieve the second objective, the mold is installed with a gap from the end face of the flange surface, and heat foaming is performed to improve the burr covering safety on the end face of the top plate flange and increase the amount of deflection. Can do.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, the top plate of the stove having the outer peripheral edge formed by folding the peripheral edge to the back side is turned over so that the molding die is adjacent between the outer peripheral edge and the top plate, and the gap between the outer peripheral edge and the molding die. This is a method for manufacturing a top plate seal part in which a foamed resin material is applied onto the outer peripheral edge and the foamed resin material is heated and foam-molded. The top plate seal part can be foam-molded into a free shape and the sealing performance is improved.
[0008]
Moreover, it is a manufacturing method of the top plate seal | sticker part which made the cross-sectional shape of the shaping | molding die into the L shape, can prevent dripping of a foamed resin material, and can perform foam molding which covers a flange end surface, and safety | security is improved.
[0009]
Further, after turning the top plate of the stove having the outer periphery formed by folding the periphery to the back side and applying the foamed resin material to the outer periphery , the mold is brought into contact with the outer periphery by covering the foamed resin material. This is a method of manufacturing a top plate seal part in which the foamed resin material is heated and foamed along the inner surface of the mold in the direction of the vent hole of the mold, and can be foam-molded into a free shape and deformed even with a small load Since the amount can be increased, the sealing performance is improved.
[0010]
Moreover, it is a manufacturing method of the top plate seal | sticker part which provides the punching hole of the reaction gas generated at the time of heating foaming in a shaping | molding die, and cannot hold up air, and a foaming shape is stabilized.
[0011]
Furthermore, it is a manufacturing method of the top plate seal part which gave the fluororesin to the surface of the shaping | molding die, and can remove | omit mold.
[0012]
【Example】
Next, an embodiment of the top plate sealing structure of the present invention will be described with reference to the drawings.
[0013]
Example 1
1 is an overall view of Embodiment 1 of the present invention, and FIG. 2 is a longitudinal sectional view of a top plate seal portion. 1 (a), (b), (c) and FIG. 2 (a), (b), (c) , the main body 1 has a flange portion protruding outwardly on the upper surface of the case, and the counter 2 The top plate 3 has a stepped portion as if it was drawn into a frame shape like the opening for projecting the burner. further has an outer periphery 4 (flange) projecting horizontally inwardly folded to the backside of the periphery as shown in FIG. 2 (c), the top plate on the outer peripheral edge 4 is shaped to cover the outer peripheral fourth end surface seal portion 5 Yes is molded over the entire circumference, it is disposed fixed on the counter 2 as shown in Figure 2 (c).
[0014]
Then action, to describe the effect, the top plate seal portion 5 provided on the outer periphery 4 of the top plate 3 compressively deformed by the weight of the top plate 3 Togotoku absorbs the warp of the counter 2 and the top plate 3 Seal the gap to prevent water from entering inside.
[0015]
Next, the manufacturing method will be described . FIG. 2 (a) is a cross-sectional view of the foamed resin and the mold before foaming of the top plate seal portion, and (b) is the foamed resin and the mold after foaming of the top plate seal portion. (C) is sectional drawing at the time of installation of the same top plate seal part. As shown in FIG. 2 (a), the top plate 3 having the outer peripheral edge 4 formed by turning the peripheral edge back to the back side is turned over, and the mold is adjacent between the outer peripheral edge 4 and the top plate 3, that is, foaming is performed. A vertical surface 10 connecting the lower horizontal surface 7 and the upper horizontal surface 8 of the molding die 9 having a lower horizontal surface 7 for preventing dripping of the resin material 6 and an upper horizontal surface 8 for applying a part of the foamed resin material 6 is provided on the inner side from the periphery of the top plate 3. Is fixed at a position with a gap of about 1.5 mm from the end surface of the outer peripheral edge 4 (flange) protruding in the direction, and the foamed resin material 6 is partially placed on the upper horizontal surface 8 of the mold 9 and is also sufficient on the outer peripheral edge 4 surface. As shown in FIG. 2B , when a foamed silicone resin material having excellent heat resistance is applied and heated in a furnace , the foamed resin material 6 undergoes a foam curing reaction as shown in FIG. Silicone resin material Contact surface firmly adhered, the top plate seal portion 5 medium has elasticity sectional triangular circular spongy is formed over the entire circumference. In this way, the foamed resin material 6 is applied to the periphery of the top plate 3 and foamed, cured, and bonded. Therefore, the top plate seal portion 5 does not easily come off, and the conventional process for fitting the molded rubber also in terms of manufacturing. This eliminates the need for automation and reduces material and manufacturing costs. In addition, the foamed shape is safe because the foam covers the outer peripheral edge, so there is no risk of cutting your hands when cleaning, and the top of the foam is formed in the shape of a vertical line that is not received by the flange. The amount of deflection is easy and the sealing performance is improved. And since the shaping | molding die 9 which has the lower horizontal surface 7 and the upper horizontal surface 8 which apply | coats a part of foaming material is used for the dripping prevention of a foamed resin material, the height of the top plate seal part 5 is stabilized.
[0016]
(Example 2)
FIG. 3A is a longitudinal sectional view of the foamed resin before foaming of the top plate seal part of Example 2 of the present invention, and FIG. 3B is a longitudinal sectional view when the top plate seal part molding die is installed. c) is a cross-sectional view of another foamed resin and a mold after foaming of the top plate seal portion . In addition, the thing of the same code | symbol as Example 1 has the same structure, and abbreviate | omits description. What differs from embodiment 1, the foamed silicone resin is a foamed resin material, as shown in FIG. 3 (a), after applying on the outer periphery of the top plate 3 4 everted, surface treatment for the release on the surface Alternatively, the mold 9 in which a triangular shape is formed in a plated groove shape is covered with the foamed resin material 6 and brought into contact with the outer peripheral edge, and is heated and foamed and cured to form a triangular shape in the groove shape as shown in FIG. The top plate seal portion 5 is formed in a triangular shape in the direction of the gas vent hole 11 along the inner surface of the molding die 9 in which the shape is formed . The mold 9 is provided with a gas vent hole 11 so that air does not accumulate in the mold 9 and the foamed shape is stabilized.
[0017]
Compared to the semi-circular foam seal shape, the amount of deflection is large and the seal performance can be improved.
[0018]
【The invention's effect】
As is apparent from the above description, the method for manufacturing the stove top plate seal portion of the present invention provides the following effects.
[0019]
Since the foamed resin material is applied to the periphery of the top plate and foamed and cured and adhered, the sealing part does not easily come off, and the manufacturing process does not require conventional molding rubber fitting work, and automation is achieved. This has the advantageous effect of reducing the manufacturing cost. And the shape of a top plate seal part can be made into a shape which is easy to bend, and it has the advantageous effect that seal performance can be improved. In addition, the end face can be hidden by the foam seal material without any special processing applied to the flange to prevent burrs, and the bottom of the foam seal is held by the flange so that the seal can be folded back. It is easy to bend and the sealing performance is improved.
[0020]
Moreover, dripping of the foamed resin material can be prevented, and the height of the seal part after heating and foaming can be stabilized. In addition, since the foamed resin adheres to the back side of the flange surface, it is difficult to remove during cleaning and the safety is further improved.
[0021]
In addition, the shape of the top plate seal portion can be freely configured, and the seal portion can be easily bent or formed with a protrusion that is difficult to form a gap, thereby improving the sealing performance.
[0022]
Furthermore, since air cannot be retained, the foam shape and height are stable, and the sealing performance can be improved.
[0023]
Further, even a foamed resin that normally adheres to a metal can be prevented from adhering to a mold, thereby enabling molding.
[Brief description of the drawings]
1A is a top view for explaining a manufacturing method of a stove top plate seal part according to Embodiment 1 of the present invention. FIG. 1B is a cross-sectional view for explaining the manufacturing method. FIG. 1C is a front view for explaining the manufacturing method. 2A is a cross-sectional view of a foamed resin and a mold before foaming of the top plate seal portion in the manufacturing method. FIG. 2B is a cross-sectional view of the foamed resin and a mold after foaming of the top plate seal portion. Sectional view when the top plate seal part is installed [FIG. 3] (a) Vertical sectional view of the foamed resin before foaming of the top plate seal part (b) Vertical sectional view when the top plate seal part molding die is installed ( c) Cross-sectional view of another foamed resin and mold after foaming of the top plate seal part [FIG. 4] Cross-sectional view of a conventional top plate seal part [Explanation of symbols]
1 Stove body 2 Counter 3 Top plate 4 Outer edge (flange)
5 Top plate seal part 6 Foamed resin material 9 Mold 11 Degassing hole

Claims (5)

The top plate of the stove having the outer peripheral edge formed by folding the peripheral edge to the back side is turned over so that the molding die is adjacent to the outer peripheral edge and the top plate, and the gap between the outer peripheral edge and the molding die and the outer A method of manufacturing a top plate seal part, in which a foamed resin material is applied on the periphery, and then the foamed resin material is heated and foamed. The manufacturing method of the top plate seal | sticker part of Claim 1 which made the cross-sectional shape of the shaping | molding die into the L shape. After applying the foamed resin material to the outer periphery by turning the top plate of the stove having the outer periphery formed by folding the periphery to the back side, the mold is brought into contact with the outer periphery , covering the foamed resin material, A method for manufacturing a top plate seal part, wherein the foamed resin material is heated and foamed along the inner surface of the mold in the direction of a vent hole of the mold. The manufacturing method of the top plate seal part of Claim 3 which provided the vent hole of the reactive gas generated at the time of heating foaming in a shaping | molding die. The manufacturing method of the top plate seal part of Claim 1, 2, 3 or 4 which gave the fluorine-type resin to the surface of the shaping | molding die.

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