JPS6174812A - Manufacture of diaphragm - Google Patents

Abstract

PURPOSE:To manufacture a diaphragm through an inexpensive method not using an expensive die, by a method wherein along with performance of press molding of a single-body material between a solid mold having a predetermined stationary mold surface and a soft mold whose mold surface is formed of flexible rubber, cross- linking molding is performed by heating the same. CONSTITUTION:After uncross-linked raw rubber has been formed into a sheetlike state and made into a sheet whose thickness is constant by laminating the same with base cloth according to necessity, the same is made into a platelike single-body material M by blanking the same into a predetermined shape with a blank. The single-body material M is arranged within a cavity constituting a mold surface of a solid mold. A soft mold is matched under the above state, a piston part 31 is moved downward by pressing a pressing part 33 after that, through which a pressing fluid 4 of the inside of a fluid chamber is pressed, a mold surface component 2 having flexibility is pressed against the single-body material M and molding is performed by pinching and pressing the single-body material M between the mold surfaces 7a, 7b of the solid mold and the mold surface component 2. Simultaneously with the molding the molded single-body material M is heated by either the solid mold or the solid mold together with the soft mold, the cross-linking is performed through the heating and a diaphragm is manufactured.

Description

[Detailed description of the invention]

[Industrial field 1 This invention (yo'/ (X-nonl, +/)↑'1 construction fj
It is about law. This invention was used in the rubber industry, which manufactures 1 Riyi Noram, as one of the conventional methods. For example: Fig. 89 shows the cross-section of the earth-mounted section. Upper type 101, F type 1
Using the division 1111 from 02, this upper mold 1゜1
, Down'X! 102 T: ni a cLa=t-
1? Insert 1Φ of unframed original v1 rubber M, and the 12th
5 degrees up as shown in 181! 10 +, -+・4
1'l I 024' ~ Tighten ζ, fill 81 J of raw rubber M in 1 toy and heat to 0.1 ml,
We manufacture J2 diaphragms by crosslinking raw rubber. [Problems solved by "invention"] This conventional one-cap part: "l T' (-(Who should use it?) , ri + Kaname, there is a scolding and Kaname that makes up a pair of minutes, for example, 1 pear, lower ν's next combination L accuracy, by 5 at the meeting, and ♂ hope cos 1
- is iris and it is Omachi. The present invention consists of 1. The one who does not use expensive mengiya, the one who promotes people ``Qda? The outfit that manufactures sephram'', the one who promotes people.
Rir. 3. In order to solve the problem, F-stage frame 1\R Ming no 1 (J construction delta method of pulling frame is used to form a sheet of constant thickness containing rubber from the wood. (Formation of material to form a plate-like material)
7, (q-shaped font; B material is set to the specified 1.
How many [4 bodies, 11 sides, 116 shapes, 1'-°, 1 formed of flexible rubber base! Add between L [Molding and Toshi 17
11 Heated C rack (2 round shape 1 ゛ molding [It is 141 marks that it is formed by C and C joint.) In your method, finally DA (1 round 8 molding) qim4-t' fixed with molding gills
i suru 1 + 1'l'' 1111 t'v1i111
fr offing fIIi self (E (7) com”j”’C-
Form I4 1℃ flexible III! /, used (111111
/+1 Perform molding. Solid sky and 1! 18l +, 2 is Iff Ruhadun 1. J 1311 does not make the type agreement Jjo l Pisa. By doing this, the mold used in this method can be reduced to (Heme C cheap 11 ■ 1 and 1 ro), and the overall manufacturing convex cost 1 - is significantly lower 1...J7J,
, Also, the accuracy of the diaphragm is as good as lit iA book (
A molding [with sufficient wall thickness accuracy of 6 pieces, the diaphragm preforming tool C meat V information II Yu is low I, and the meat 7 fineness is high γ (17 flam is Molding 'C-
Wear. It's clearly J3 in the book, '7r\? Noram refers to a model in which rubber is pasted on both sides or one side of the base fabric, and the entire support is made of rubber. A shape formed of a material with expansion and contraction t1 is a shape that can be freely deformed.In addition, a solid mold is a solid material such as metal or ceramics whose mold surface does not deform. °! [Explanation of the structure of the invention μj] The manufacturing method of the green r1 afla 11 of the present invention is composed of a single material forming step and a crosslinking molding step. 2 is to form a plate-shaped carapace waste box of a predetermined shape containing uncrosslinked raw material rubber.
- shape, and J! as necessary. City and tension 8ze-2! After forming a thick sheet, this is punched into a predetermined shape using a punching die or the like to produce a plate-shaped lithium-ion stone material. The specific method for obtaining sheet rubber of a certain thickness is as follows:
One of the conventional rubber sheet molding methods can be used: Calendar molding method and rubber extrusion molding method. 1 sheet 1-1 Forming method of rubber sheet 1 - 1 rubber extrusion) A person can mold a sheet rubber with high accuracy in wall thickness. 1?'i bar rubber and +, t, H rubber's !Wl !m+ used for molding. i ne[:11mu of force January HA etc.'a: jr51114 form, 1 (71J, L II
L! h 71a ``-'i'7 et h t, - simple substance'
,? Pressure mold 7I between the solid mold with 0g of 2 kA on the predetermined fixed mold surface and the flexible mold, which is formed with a rubber knife of Oki f1?1 white (L!+). The material used to cross-link raw rubber by heating is 'C' (b). The set of edges used here is shown in Figures 1 and 2, for example. 11. In Figure 1, ! Frame 1 (, t r?
The face plate 11 and the cylindrical opening rL and 1: 11 (
The frame portion 12 containing the hollow recess and the edge-shaped presser foot 13
It is made up of. The frame 8 [112 is integrally fixed to the blue plate 11 with bolts 111, and the frame 7Ji 12 and presser foot 13
is r! of mold surface member 2 between ε! :I bottom 4 liquid dry τ, :f white
There is C. Add f1 move “23 is 1° of frame 12! Through 7L
1. : Piston part 31 that can move in the axial direction to 18 first confessions
and the O-ring 32 held on the outer peripheral edge of the piston part 31 and the pressing part 33 which is an adjustment screw screwed into the screw hole at the rear end of the piston 1ili 31. . A space formed by I+3 between the surface part (42 and the frame part 12 and the screw part 31 forms a fluid =,
A body 4 is sealed in the ζ body 3i into the I port in a liquid Δ manner. This flexible '4° 1 (to press the pressing part 33, the piston part:) 1 is against the frame 1 ((
1st, move to j, iR rest 〒 rest (r 4 reduction 2!
Move in the direction of rising. This causes fluid 4 to move, and Te!
The surface portion t12 is deformed, ■! However, in Figure 1, there is J3, which bulges downward. FIG. 2 shows a cross section of a solid mold that is paired with the flexible mold. To this solid °! The temperature is the same as the lower mold of a conventional mold. This solid -ψ is interposed between the fixing plate 5 and the frame 6 fixed to the fixing plate 5 with bolts 51, and the next 1 part where most of the hes face metal is formed. 7. The upper surface 73 of this mold part 7 and a part of the inner circumferential surface 6a of the frame part 6 become the back surface.In the method of the present invention, as shown in FIG. take care of you

Place the IIt body material ~1 in the cavity. In this state shown in Figure 1? Combine J flexible type,
The IQ! Press the fII pressure part 33 to release the piston part 31
moves downwards, which causes the fluid! 1) Pressurize the zero-pressure fluid 4, press the mold surface part (A 2) with the soft blow bamboo against the single material M, and as shown in the enlarged cross section of the main part in Fig. Molding is carried out by pressing between the mold parts 7a and 7b of the solid mold and the mold part member 2. In the same manner as this molding, the solid l
XI+ or solid F ¥11,! : Soft) and molded Q n t - medium rest, (,1,4M is heated and cross-linked by this heating to produce 7-11. When the cross-linking is completed, 1; The tie aflame to be prepared is separated into a flexible mold and a solid edge, and taken out from the mold surface of the solid mold.
(According to Figures to Figures 8)': Soft +1° (4. Can be used. The engineering soft lv! in Figure 4 is not shown in Figure 114 and is related to the improvement of the flexible type, and the flow IA chamber is The frame portion 12 to be formed (
(The same reference numerals are used for parts that are the same or similar to m) and flexible rubber seals 1 to 8 are used on the surfaces of the screw parts 31. In this flexible mold, the fluid hole is formed between the seal member 8 and the mold surface member 2. For this reason, the pressurized fluid 4 is sealed by the seal member 0 and the 1% lI surface member 2. This flexibility
%+! 7. When the pressure horn acts on the pressing part 33, the screws 1 to 31 are driven in the axial direction, thereby deforming the sealing part 8 and reducing the volume of the fluid empty, which causes the weighted fluid 4 in the fluid T to is pressurized, and the mold surface member 2 bulges. 5th] In the flexible type shown in the figure, the piston part 31 and the tone plate 11 are integrally fixed with bolts 111, and this is made into a large piston body, and the frame part 12 and the mold surface part 442 form a cylinder part corresponding to the cylinder. It is a well-established Shino. No. 6 relates to the improvement of FIG.
It's my fault that I've improved by 118. Section 7 (3 pressurizing means externally, 12 pieces, fluid in the frame 12) The inlet 31 is colored, the external pressurized fluid source and the fluid connection are passed through 12, and the external town RX fluid is By introducing mold surface part 2
It is something that expands. [Efficacy of R Ming Sung 1 In the method for producing guisefram of the present invention, Ming Sung + 5
A flexible mold in which one side of the solid mold is made of elastic rubber or the like can be used.For this purpose, a T unit can be used as a solid mold. ,
It is only required for one side of the split type. II-)C
・1′! The cost will be cheap. In particular, even when the precision of the thickness 17 of the Guisephram to be manufactured is high, if the polishing of the thickness 11fj of the single strip material is made high, a diaphragm 111 with high wall thickness precision can be obtained. Specifically, diaphragms with a wall thickness of about 1 mm, 1i Q, Q, and diaphragms with wall thickness accuracy of within 5 mm are used. With the molding method, if the wall thickness is Q or Q5mm, 0
．． The molding of Go11 sheet with extremely high wall thickness within 5molO1○021nR1 is i+J capability. In addition, in the vulcanization molding process, the rubber is not molded into a layered shape (as is the case with a solid mold), but is simply pressed against one mold surface by A' and the soft shell. It is. Although this IJ armor 14 + 4 bending occurs, it is difficult to deform LL 'l' with a change in wall thickness. For this reason, the wall thickness accuracy of the vulcanization molding process (?Jj '-' r t-1 A) is almost maintained, and Gusephram with a high wall thickness of 11'' II, TL can be manufactured.1!1 2+'-' (II was processed 32 times.In the case of single material, the flow of J and Ribo 11 components to the base can is suppressed, so the wall thickness change due to IJ in the flA molding process is more < /+ , p,. J, sea urchin b method of the present invention LL, like the method at the end of II, the meat of sea urchin is removed from the mold of 1 field I7t,''
Once (Φ) the first time C8 fashionable desire will not be exceeded.In the method of the present invention, the diaphragm flesh Qμ, the middle rest $
Material 13 [戊]
=? ! 5 hours 1 i - Kaname / 9 wishes [Yo;
Because of this, the entire method of manufacturing tire flams is cheap! This is a unique construction method.・Explanation for curve 14 in Drawing 19. Figure 1 is a central plan view of a typical flexible type used in the hA bridge finishing process of the present invention, and Figure 2 is a central view of a typical flexible type used in the Kurihashi Narisugi process of the present invention. Figure 3 is a cross-sectional view of a typical solid-state type under medium heat;
Use the flexible type shown in Figure 11 and the solid type shown in Figure 2! 11 bodies f
The enlarged cross-sectional view of the JU section showing the state in which the I material is being formed, as well as Figs. Central sectional view of the mold,
Figure 8 shows the conventional first ancestor. Central cross-sectional view showing lj pear,
Figure 9 shows the Q closure of molding 11 in Figure 8),,, ,';R
<> There is a drawing. 1...Frame body 2...'t"! Surface member 3...
Inlllld1 Deaf ・1...011 CL iX
Applicant for revision 1. H'l fi1 Synthetic Co., Ltd. Representative Patent Attorney Hirodo Okawa BuC Soku To Mutsuya Outer
Valve 1+11-1 Akio Maruyama Fig. 1 Fig. 2 Fig. 6a, 7a 6 ゝN5 ・7 5 ゝ51 3rd: Fig. 4 Fig. 5, 11, . 31 4 Scarcity ゝ13 Figure 6, 11. ,,． 31 8'213

Claims (5)

[Claims] (1) A single material forming process in which a sheet of a certain thickness containing uncrosslinked raw material rubber is formed and then punched out to form a plate-shaped single material; A method for manufacturing a diaphragm, comprising a molding process of pressure molding between a mold and a flexible mold whose mold surface is made of elastic rubber or the like, and crosslinking molding by heating. (2) The manufacturing method according to claim 1, wherein the sheet is made by embedding a base fabric in uncrosslinked raw rubber. (3) The flexible mold consists of a flexible sheet that forms the mold surface, a frame that holds the flexible sheet in a liquid-tight manner and forms a fluid chamber together with the liquid-tight sheet, and a pressurized fluid that is held in the fluid chamber. A manufacturing method according to claim 1, comprising: (4) The manufacturing method according to claim 3, wherein the flexible mold is provided with a pressurizing means for pressurizing the fluid. (5) The manufacturing method according to claim 3, wherein the flexible mold has an introduction hole for introducing external pressure fluid.