JPS5921459A - Die casting machine - Google Patents

Abstract

PURPOSE:To enable the preparation of castings having no shrinkage cavities in plural cavities in the stage of casting molten metal simultaneously in radially formed plural cavities of dies by providing a gating member for molten metal which is movable into and from the feed passage for the molten metal. CONSTITUTION:Plural casting cavities 50 are formed around a feed passage 44 for molten metal by a combination of a stationary die 45 and movable die 46 of a die casting machine, and molten metal 37 of an Al alloy or the like is supplied into a cylinder 23 for injection molding. A setting down plate 85 is projected in the passage 44 in this case to prevent the entry of the metal 37 in a biscuit 49. The metal 37 is pushed into the biscuit 49 by the low speed driving of a piston 23a upon completion of the supply of the metal 37. The plate 85 is simultaneously brought down to allow the inflow of the metal 37 into the biscuit 49. The piston 23a is then driven at a high speed to force and cast the molten metal into the plural cavities 50. The products having no shrinkage cavities and having high quality are cast with high production efficiency.

Description

[Detailed description of the invention]

The present invention relates to a die casting machine that can improve product quality. In general, die casting machines are shown in Figure 1.
This, the machine IJ:, the fixed frame I, the fixed frame 2
A fixed mold 3 fixed to the fixed mold 3, L fixed] iiJ moving frame 4 that moves back and forth relative to the frame 2, ijJ fixed to the moving frame 4 and moving toward and away from the fixed mold 3 A moving mold mold 5iiJ moving frame drive device 6 is arranged, and both molds 3
, 5, as shown in FIG. 2(a) (see FIG. 2(a)). ] 4 and the gate 15 to fill the molding cavity 16 of each mold and perform casting (see FIG. 2 (1)). By the way, in the casting machine described in 1. Since the bottom surface 12a of the cylindrical hot water supply passage 12 in the cylinder 7 is formed with water X17.H, molten metal 1O accumulates in the F'I'1 part of the hot water supply passage 12, while air remains in the upper half. However, due to the drive of the piston 11, when the speed is low, the molten metal 10 begins to be press-fitted into the cylinder 7 with air remaining in the cylinder 7, as shown in FIG. In Fig. 2 (as shown in 0, the molten metal 10 is press-fitted into the caviar eye 16 with the air in the cylinder 7 mixed with θ, but -),
As shown in Fig. 3.4, there is a high possibility that shrinkage may occur in products 17 and 18, resulting in poor quality. Therefore, if the biscuit 13, runner 14 and gate [5] are reduced, the
The molten metal 1o in the biscuit 13 is solidified faster than the molten metal 1o in the biscuit 16. It moves into the molten metal 1o, making it easy for whiskers and shrinkage cavities to occur in the product 17. The molten metals J and O in the biscuit 16 must be made to solidify more quickly.
There was a problem with production efficiency: , -, 17i. Furthermore, in 6 units of the above lI7, jj (and 12 a) of the hot water supply path 12 is water もV, so N
- If the Yaviti 16 is installed below the biscuit 1:3 of the edge of 'A'/)A&812, the feed (
+: At the same time when the molten metal 10 is supplied from the 5t+q to the hot water supply path 12 (from the biscuit 13 to the runner 14 and the gate 15
In the gavity on the l side (this, piston 11 (1
7) Drive (before the press-in JIW of the molten metal 10, (8 audience 101j' ice person L /If L,',l L), uneven solidification occurs in the product. Therefore, inevitably, as shown in Fig. 3 and As shown in FIG. 4, the cavity A' can only be provided on the opposite side of the biscuit 13 at the tip of the hot water supply path.
For example, there was a biscuit J, a product that spreads radially in the middle and inside (see Figure 11). was made to solve the above problem.)
Then, the molten metal is fed into the injection molding cylinder from the molten metal feed line [1] into the molten metal feed path where the molten metal is pushed out by the injection piston with the screw '1'. A gate member is provided on the weir 1 to prevent the molten metal from flowing into the biscuit in the hot water supply path when supplying molten metal, and a gate is also provided on the t side of the biscuit.
, In addition to being able to provide a part of the U plate, it also reduces the amount of residual molten metal in the screw hole and reduces the amount of residual molten metal in the screw hole. The aim is to provide a die-casting machine that can reduce i+ to 112 yen.
1 doll J'j 'cH is extruded into the 1-shaped molding cavity by the injection piston of the injection molding cylinder) molten product f, , j %, use L7 to supply hot water [1 to -F]
- Injection Formation 1 [The molten metal supplied into the second side cylinder is pushed out to the injection piston - this bisquera 1 - and the molten metal supplied into the molten metal supply path (which can freely come in and out) is A weir 11-me part 11 is provided to prevent the molten metal from flowing into the screwget at the entrance position of the weir 11-me member in the hot water supply path, and at the same time, 1,:, :ft,!1! -ki 11th;
11 The exit position outside the supply f'↓h path of the molten metal is made so as not to obstruct the inflow of the molten metal into the biscuit.4 Features and 1
I'm 7. Hereinafter, the invention will be described in detail based on the embodiments shown in Nos. 5 to 22. In FIG. 5, 21 is a material supply device, 22 is a melting ]
, 32 is a water heater, 2: ( is an injection molding cylinder, 24
25 is a fixed frame, 25 is an i-+J moving frame, 26 is a uJ moving frame drive device, and 27 is a product holding device. 28 is product finishing equipment, 29 is boxing equipment, 3()
31 is a return device, and 31 is an operation panel. The material supply device 21 spirally feeds the ball ingot 33 into the preheated case 3 (as shown in FIGS. 5 and 7).
The inner circumferential surface of No. 4 (the molten metal: No. 37) is guided into the melt inkbot 36 of the melting furnace 22 by the guidance of No. 1 and 35, and is melted. The ball ingot 33 is guided into the J2 preheating case 34 and the ball ingot 33 is
A control tamper 39 connected to a temperature sensor 38 such as a thermoelectric rl performs a 7nA jfl adjustment W'1 for preheating. -1 Melt metal in the melting furnace 22: 37 is the cylinder 4 for opening and closing the shell 40 that covers a part of the melting inkbot 36
Open drive special number 1, hot water supply 4 that constitutes the water heater, 32
The molten metal 37 is fed from the 2i to the injection molding cylinder 23.
-143 into the cylinder 23, ma-)(ζ-
12[:) (Figure 13(a)-Hga1:]). 1.1 1 ([1K11X11N+11: Linda 2; 3
A fixed phrase fl, /, ;:l (ζ- is Il'j i
f; +1'! a l, in l)) fixed drunkenness 11145, fixed so 1-4'・24 +C't:f (, l'll
J backward movement A); I downward movement - no L = -, 4, 25 has
iAt :['3'M' L L -'C(
7) III・In, i7! ('j 4
6': g large, /Z,,<F! 51
1 ri, -, yin "14if'i 47 + -+
47 (Fixed to Koyori 6 off 1-iJ rii (7-(L
Al. "i'y 1--C1208Figure 1 (-fF<
t J:, UIC 1 unit 521y, t)) i-'
11 constant 7 [-m2・1 (this is injection 1 cylinder for round shape 1
! :3 ri ゛iel' iTh i-hold〕shi・-ノ・4
8 by 1-】1 constant door )-1, 3:z
;” 23'N,・lij has the same tenth day f, N L
. - (Inside the unit'; slotted hole 441 communicating with hole 44a)
Fixed i, i, :, path 1 1τ purchase [, is. 1,...[1・Supply μ・11 road 4・1 fixed rule)・2
1 drop for JJi drop of 4. isuj′ together:1)″
■4 leak at the entrance/exit of 144 11. Part 1L-shi ()) Season end ('k 85 set +, j. 9th
, 1 (, + 1 (・', 1, 10: ・-1, go,
Sukiri JIy85 is 1 Kanyama 1 month 411 [guardian dog 4]. 1゛B)-7-11, Recording of injection 1 nokj [Drive of injection pistons 2 and 3d of two-phase cylinder 23: Interlocked with lu+ 1
〜Deku diagram,■Mishinai horse (also・flJ+shiri/dat)shi< is Kak・mechanism, etc., so that the thread h′easy path 4.1・＼entering and exiting−) (koshi−( -There is. Part 1.
;) jk 85 (7) Ten end face 85 a It, supply Aj
, the curved surface that is almost the same as the inner wall surface of road 14 is 1
IJ out 1 q place 1 (1', l: (1 sentence 1 (1)) ke I: (
In H), the -L end 1+485a and the interior surface in the supply passage are approximately +f. Fortune-telling, melt! ``!I% After 37 4. Make sure that the scale 1-49 and the pistons 2 and 3 in the hot water supply path 44 do not move. On the other hand, Zekiri (and 85's salary, ''M, &3 N
111 people also entered the NH (13th r<(a) entry゛[)・,
A) τ C, Zeke treatment 85's (1111 songs (from here, in the supply route ((-I) (O;' T-Site t 1 宕 / 1 force 37 to Vizquera 1-49 7'lje yζ Let's go to Ill'BJ.
J: 146 and fixed 5n 1%! j 45's dense N
fk'fiC1 The evening of the above-mentioned payment 7'o'clock 44 [. While closing the end 1lij (biscuit) 4 (),
Total biscuit 49 (7,), -11'F /+t
:(,'F for molding~\'Binii 50.・
. . , 50 and the game h 51 , .
A mold 45 is provided with a concave portion 46a with a hole of ε1 (L on the other hand, fixed 5).
1 is iiJ moving mold mold 46 constant, i> Qs・l! 3
No joke? 111']', l, note 11 lower movement, so (January 6
4th part 46a and Tekyabi? -150.・--Provide a first river section 45a for ear hooks of 50). 12tp°, Il, i+2: The molding amount d (as announced in ((-1tI■, b, 1
．． (From 4G to extrusion device 54 (Koyori 4111'+ Umami Se), product ('Cane holding position A, (J dotted chain line in figure 5)' Good quality”
held in the f1 holding device 27]; ↓υProduct 1" I have!,・Device 27 is the product 5 above.
Hole for fitting 3 (Fig. R). ) with f-1 trimming die 55, and 1-ku guis 55 with 1-lil
, together with arm 56: i';'I! ! 45. 46 between parts, lk ゛V force direction to mold・15.4.6
The drive cylinder (not shown) that causes fL4 is roughly configured, and the ↑ (1-output (7)
When it happened; this river! [1] Product attached to Jf-1445 534-1 - The end face of the 5° L product holding device 27 that can be fitted with one of the ties 55. , 8!'7'' city device and I7ζ(]J jllt'I'J +'tll□7
'□For mountains/Zuru57. ..., a plurality of 57 are provided, and a deposit is placed on the L product holding device 27/ holding the product 53.
4.5 e When you pull out from between 46 and 45
゜46 concavity 545 a * 46 a to tJ,';1
The product winch 3 held in the die 55 is placed in the mold 45 *
46 between the outer stubble and the beard position 1 Fig. 5 1 + 4 - + Fruit, glands shown. ), 1.
1. It's like you're going to be defeated. -1- Recording device 28 is a product extrusion pH number 5
8 and a bunch drive cylinder 59, -
[1; The self-bunch 58 is -1:, the self-bunch seed ← 5 is driven by the force cylinder 59, and is extruded to the trimming die 55 located at the trimming position B, and when casting from the product 53 (
This) De 1 Bosushita Paris, Bisquera 1-49 and '-
) 51 The scraps 60 etc. that have been hollowed out are removed and processed. The products 5 and 3 finished as described above are , the conveyor 62-V pull-temporally stops [゛The box 63 being stirred is made to have a fixed number iυ(i'+). Occasionally, 1 item 3 to 1) 1 ゛ or tr Paris or 60 etc. will be completely destroyed.
Inside Il, l size 1.4it (:li). 1, -: , s, L Soriichi device: 3 (), ! From the chute 64 to the buffer in the elevator 65
(Collection 7, the bucket number is constant 4) (・-, then 1
．． 2. Show the cylinder page of the cylinder page. )ko, -r, lever 6
1 of 5. ,kA ('j Directly place the 7-pieces on the 7-pieces to melt and dissolve the dust and debris 60':ri in the packets.
Circle A1-Ya68 with U< t+υ due to inner net 67
69 is the dross removal device for the hot water surface of the fore-furnace 22.
], as shown in the 12th ward 1 (n+), (1,)), the drive "') / evening' 7 (-) ノ!'+14
'E-9) Ic yori”its l 21<l(”
) + (b) From c11C position 1) (\j position (('-
Move the dross from the exit surface of 22 into the dross remover 71 (1 and 1). , move the dross remover 71 from the 1-) position to the center of the fulcrum 72'J111111
The dross 33 is rotated in the dross receptacle 74 (it will be taken out for the first time). Next, the operation of the die casting I/casting machine relating to Section 14 construction will be explained. 1. In Fig. 5 - C, operation panel; 31θ〕 ↑・■ Clamp the inner metal Q45, 46 with the movable frame drive device 26. The device 32 (from which it is supplied into the injection molding cylinder 23 (13th is 1 (a) 13 p%4). At this time,
85 is located at the semi-inlet position 1 (-
,, E fjL: molten metal 37 supplied into the hot water supply path 44
The screws/yuts 49'\iMt will be prevented from coming in. Then, the 1'8 change to the hot water supply path 44 of the L cylinder 2:3;

[, Fig. 13(b)
As shown (here, 1 scratch, 47 scratches, 1 screw!)
2: Visquera by low speed drive of 3a!・It is pushed out into the 49, but this screw) /23 A, in conjunction with the drive, lower the partition slope 85 by -1.
Place this position, Sekiri II shi 7 35;
Screw 7 + 1 inside 49\u) ijj person and Mr. of piston 23a (Me 1u1 to IJ) 4, J2UO rub. Next, piston 2 +'+ af, lj'+
13 (C) Ic t J-) I 7; T*N'biai5
0. ..., 1L should be in 507, and Fig. 13 (
As shown in the mountain, the piston 2+3 i' 1-S is extended one step to the inside of the biscuit 49 at the tip.
37 to N-A-Height 50. ..., it will be filled within 50
'↓17, IJjyu;liuichikoichi). Next, moisture production, 5:) 4-way moving mold 46 side rljl double, ν (!
14.1 in the figure, a trimming die 55EFφ is placed between both molds 45.46 as indicated by the chain line 1". Next, from i-i'j is extruded and fitted into the hole of the die 55. Next, from between -C and L dime die inner focus molds 45+46,
F↓1J one by one) Take the mold release agent from 57) (Apply it to the four parts 4!5a+46a of the mold 15+46. Then, both:?::=W!4514 Clamp G again and perform the next 5% manufacturing.Meanwhile, product 5: (hold [7
For the Tice 55, the product extrusion punch 5841! Il
The pressure and debris 6 formed integrally with the product 53 (
) 1 is removed and extruded by L bunch 58; i
l, Th:f, f, knee, 1. , processed products 5
3, 4 [11 items 221---toro 1 sweat + 32-h) iii 63 inside j constant near XIQ ni stuffed. At the same time, the above (Riyakasu 60'',
'j is the I-lever via the return material chute 64.
Temporarily collected in the packet of Talo 5, it is transported by E L, TL/Beta Ro 5 to melt J > 22, then it is transferred from Nutro 6 to melting power 122 for feeding into the melting furnace. According to the above example, since the ball ingot 33 was used, the supply of abrasive material ↑・)
〉It is possible to make a circle 7'? You can increase the thermal efficiency by rolling 17 to
11 [n', 'i' (li 71] nozzle 57...
, 57 by changing the direction of lli “1” IJ L
I + 1 can be freely wedged 7 (-, gold or 45 +
4b recesses 45a, 46; 1 (common f, i <
It is possible to blow 1λ1 (-).Furthermore, the dust and waste 60 etc. removed from the product 53 are collected in the packet 11, (7 in 1 chopsticks 1. 'IJ22! (2) (As a result, 1 result Y, is 17i'+ (with Kona Otsu, Paris and Kas 60': 97 is i'+':
i゛', l this point, ri(-7\raj dissolve 1 while it's still good)
Return to within 22 [. ;)7. )'s -【＼Heatistic i;】 can be improved. ↓・,+The invention is not limited to this example,
1φ'Z・, I□[・((τ can be implemented 4, Example 7 is a prisoner with 35 (λ) cross section 1 [ε shape, circular shape (7) as shown in Fig. 14, It is also possible to install it in the fixed plate 24 as shown by J (i, zekiri (reverse 85, 13th pmi IcI') midpoint \ seat, ). 1IIH+, as shown in Fig. 15, the casting machine L?52 is made into a machine 75 with the shape of
tj L C1)71 t'$-”t Sae, hot water supply path 4
4o] Hr 1 song is lj, then you can avoid 71 shiko troubles in July, and you can do it. Furthermore, as shown in Figures 16 to 18, the cylinder 23 for injection molding !18 is attached to the fixed frame 7.
- Supporting 1.48, the 11th corner of the 44th road is at the tip (
11 on the other side
4 shiri is also fine. At this time, inside the hot water supply path 44 (lj,
Of 437, the end part on the biscuit side has no audience, so according to the injection molding rule, the temperature of the hot water in the individual part of 37 is 0. Yes, the degree of melt mixing with I'yj of the song after injection molding is ・f・uniform (, -
However, the tip of the molten metal 37 on the biscuit side of the hot water supply path 44 is
By providing ζ2, M TN. When supplying hot water to the hot water supply path 44 of No. 37 (this, elution, the presence of the tip of the biscuit side of No. 7 -2, one less f, without doing so, the degree of the above melt and water mixing is f/uniform -i) This way, the hot water supply path 44 should be placed below the water surface by 1 inch.
If 2l1(i;
37-■-\"Biti 50"\'s 1.T person 1 this time I
7. Inside the hot water supply path 44 (',) ``a'' 4 is molten metal. ,',
1. ! , 37 is 1-F (elution: 37
The sky in the sky becomes less and less, and the product becomes more crowded (j
-Yahike Higashi'Nia 7 is・'1. 1.
- 1 Saseko fortune-telling weapon). 7f, 1 also 16th degree 1B
21tko:J< 1-horizontal,:I2bi Fig. 18(a) ~
Example of false 1 eaves shown in (d) (here, i; (in 1) cylinder 2
:3-in-\, no/81 Kinuta 370] (mutual food worker Bee/, ton 23 a O)! The drive operation, etc. is the same as that shown in FIGS.
By adding the number, the theory + 1117v' + ゛omitted). Furthermore, the product has a radial -X-\"BI'I" centering on Bisget 49 at No. 111g1(ko・](SaL-).
・``(,-) (not limited to, examples are ',,
iS l 9 As shown in Figure (a), (1:+)
7.4-2. -x-s
76"; 9 may also be used. In addition, in place of the furnace 22 (see Figure 20), in place of the furnace 22, , Melty Ink Bottle 1-364-.1.ltl ;・r, It 1., y Let the exhaust smoke pass through, and the ball
To preheat Inkotsuto 33, i:=t, and heat 1'l.
'l' Furnace 77 is also L. In Figure 2 (), 78 is a cylinder for opening and closing the supply cylinder, which goes up to the cylinder tuff 8 and adjusts the supply 1d of the hole inlet 3:3) 1 In addition, 79 is a hot water surface protection cover.
゜It's like the one shown in Figure 22 - it's dark. Chapter 21.22
In the figure, 80 is the audience, 81 is the sound shape force l-to 81 on the side.
a, 81a] and a holder with 4 < 80 above the end 1, 1. Naturally, 8:3゜83
The opening/closing lid 82.
The direction in which the upper end approaches lj- (this Jfr 1111
j, forming contact portions 83a, 83a1. As shown in FIG. 21, as shown in FIG. Figure 22 (Ko-R-style holding a-)・
81 downward in the vertical direction (from this, the abutting parts 83a, 83a are the cam part 81a of the support arm 81. 81a is slid and the opening/closing &82.82 is opened, and the audience 8
Elution 37 flows into 0. After that, the support arm 81
The contact parts 83a, 83a are loosed from the cam parts 81a, 81a (thereby, the opening/closing lid 82.
82 is closed, while the molten metal 37 in the cutout 80 at the lower end of the holder 81 is supplied to the hot water supply path 44 from the injection Ijj [feeding of the cylinder 23 for ε] 143. , 20) The opening/closing cylinder 41' of the opening/closing lid is layered; 1. From No. 1 and j, it is possible to simplify the opening/closing mechanism. As is clear from the explanation in Section L, according to the present invention, the
Molten I” supplied from j l l into Q1 molding cylinder/der! J 4 Biscuit 1 from QJ output Jl-1f Bistono
Molten metal 73j, without extruding, t+,'r 7chi9 route (ko, eire 17↓(, route (this molten metal weir that can be freely moved in and out) with I part.
0〕l in the supply path when supplying 71 pipes.
) layer,,l,1. 1, so as to block the 7-IL person into the screw'1 point of 1, the lower part (komo r-) of the screw'1 point, For example, a radial shape with a biscuit in the middle and Lδ [7 is Bisquera!
- around (at regular intervals, 1!, screw 'r -
Evening (you can set it so that it has a visual range. Dota,・↑
\For all inventions, the lower part of Bisget 1.-:y'-J
It is possible to create a cavity by punching the hole, and the molten metal remaining in the beef, knot, seat, etc. Sa, f
'tZ)f=Me, the molten metal (7) in the N-yavity solidifies more quickly even if the elution remaining in the biscuits, sheets, etc. does not increase so much, so the bis'r 'y
1-Et and 7-, etc. (This can reduce the remaining molten metal, and the material's f)
1i′ effect-)・L? I can do things like slow down.

[Brief explanation of drawings]

Figure 1 is to Guika of the Congregation Song Dynasty!・Taku 1st] Ikuno-gas i
Meat if + mouth concave surface U2 (1, Fig. 2 (a) - ((1) is the same as above?ljjjM machine injection supply and gap j
-Inside-\'s ji personIi'Moj:, ;2,)k''
f explanatory drawing, Fig. 3 (a) is a II- side view of the product that was not reported by the casting machine marked +4, Fig. 3 (1)) is the 3 m4 (a)
) side 1f) Figure 1 and Figure 4 are other examples of Figure 3.
[-The l'≧1, Fig. 5 shows an embodiment of the present invention (]) Die casting 1-Casting machine f+! ! iel J casting 15'i
6.7 is a Y-plane view and longitudinal sectional view of the melting furnace shown in Fig. 5. Fig. 8 is a partially sectional side view of the casting machine shown in Fig. 5. Fig. J, No. 9r
'NO□ Here are 17 actual examples of products cast by a machine.
1 [Surface view, ffllll figure (1)) is shown in Figure 11 (a)
The agent cross-sectional side view, Figure 12 (a) is not shown in Figure 5, but the 11 side view of the dross removal device, Figure 12 (1)) is shown in Figure 12 (a) (7) Cross-sectional view, Fig. 13(a)-(
(I) is a diagram showing the pressure of the molten metal in the casting machine shown in Figure 5. 1 of the girder boards
[2 actual examples of IL are not shown. Fig. 17 is a partial cross-sectional side view showing an actual example of MlL, and Fig. 17 does not show the side view of the cylinder 10r and 1 (54j section f11t f'Ji and Fig. 18). (a) to (d) are shown in Figure 16, respectively.
Explanatory diagram showing 1,000-゛, 19th Di(a
+ is shown in Fig. 11, and Fig. 19 (1)) is shown in Fig. 11.
Fig. 20 is a vertical cross-sectional view showing another example of the dissolution shown in Fig. 7; Example 1. Opening/closing 1
? Figure 22(a) shows the closed position 1.'1 for opening and closing the water heater shown in Figure 21. ]
, the stop i [[Figure i, 22nd rKl(11)+
1 in 22 + 1(a) (cross-sectional view 1) 2.3 - Injection 1i to E, lhi cylinder, 23a
:・Injection piston, 237... 7j; Te,
・1: (...Hot water supply channel [1,44...Hot water supply path, 4
9...biscuit, 50...cavity, 5
1...Gate, 85...Zegiri (and. Patent applicant R1゛Dongmyeon Gonhwa?11',
1st generation machine maker, 1st generation Kawa] ``Konshi Aoyama Ro
2 others xI

Claims (1)

[Claims] (1) Inside the molding cavity f formed by the closed-+74 mold ((-1), the molten metal extruded by the injection piston of the injection molding cylinder is injected from the biscuit through the gate. In a die-casting machine for producing a molded product, there is a molten metal supply path (11 to 1-) for pushing out the molten metal 1..16 that has not been supplied into the injection molding cylinder to the biscuit by the injection piston. A molten metal baffle member 11-1 is provided that can freely go in and out, and the fft-person position of the weir 1 ['] member in the hot water supply path prevents the molten metal from flowing into the biscuit. A die-casting machine characterized in that the exit position of the weir 11 member outside the hot water supply path does not obstruct the flow of molten metal into the biscuit.