JPS5954534A - Layered resin injection molding machine - Google Patents

Abstract

PURPOSE:To easily obtain complicated shapes of layered moldings by a method in which top forces having different mold spaces are attached to plural injection units set at each working station, and a slide block is slidably fitted on a bottom forces orderly sent onto each working station. CONSTITUTION:Working stations 41 and 42 are provided at plural positions (2 in Fig.) along the circumference of a rotary table 3, and injection units 51 and 52 are supported on the working stations 41 and 42 in a vertically movable manner. Top forces 71 and 72 are detachably provided to heating cylinders 61 and 62 provided at the lower ends of the units 51 and 52 and plural bottom forces 9 are installed on the rotary table 3. Different mold spaces are formed in each of the top forces 71 and 72, and the same mold spaces are formed in the bottom forces 9. A slide block 17 is slidably set on the bottom forces 9 by means of a grasper 16. The slide block 17 is provided with a mold space 18 corresponding to the first molding layer 2a of a molding.

Description

Detailed Description of the Invention This invention 2 relates to a 7-layer side fat injection molding machine for molded products in which many types of resins with different colors etc. are molded in layers, and in addition, the number of frames can be increased. Two molds each having a different mold engraving space are attached to the injection unit, and the lower molds each having the same mold engraving space (DI) are sequentially transferred to each work station. This relates to resin injection molding machines.

Conventionally, in layered resin injection molding machines that mold products made of layers of resins of different colors, the upper part of the mold has a primary resin channel (sprue bush) connected to the first part. The lower mold 1□゛11. forms the upper mold gp space of the shank 9 and matches the i upper mold engraving space. JIF for rotation with the space iii + the lower part of the upper mold? Placed in 7
Then rotate the lower mold every 1-4 inches -)'
JI, jll type hollow 1il with different sai type hollow [111
By busy-P-, the shape of the 74+1 carving space is changed, and 1 is added to each work group.
-..., different (Φ's 41i111?t is full 7'l
It was common to perform the work by sequentially bringing the injection units into contact with different sprue pins.

Facing, upper h1: U in conventional technology, r in ffi type
Since the mold is equipped with several sprue bushes and a single rotatable bushing, the structure of the mold is primitive and requires a special design and special machining. However, the disadvantage was that the mold cost was high.

In addition, since it is equipped with -6] moving parts, the
There was a problem that it was easy to produce one voice, and in addition, it tended to cause a decrease in work efficiency.

So, zo'I] zono'1 Different type of carving space 2, Shino 4Q
Each of the injection units of the number equipped with the number is disposed in each of the number of work stations of the number, and is formed into a shape of -7.
In this case, each of the lower molds of the collar sand in which the same mold engraving cavity +St+ is formed is sequentially transferred to each cropping stage and aligned with the upper mold of each injection unit. At the forward work station, the + of the Jl layer is formed.
A layered 4#J Jltf injection molding machine has been proposed which sequentially molds 121 other layers at subsequent work stations.

However, in the upper Aa IJk type machine, as shown in FIG.
When molding a molded product 1 in which the layers are laminated in one row, the number of drops is 1. As shown in FIG. Each layer has a shape of 4L so that it protrudes from both sides (molding the swollen surface 2).
J), C1], has the disadvantage of not being able to do it.

I am the first child of this invention, and I am very excited about the ten skillful techniques.
And the layer structure of the product made based on the previous improved branch body 6-10!
In view of the problems such as 1iil reduction, 11 types with different die-carving spaces were added to each of the 1Ti units installed on the Tanisakujo stage qn, and 11 types with different die-carving spaces were installed at each work station. Transfer point 1-1 lower 71i! You can freely put 41 pieces of Slight Floss on top of the j! By drawing the hands of JR, Nari and -1, the above-mentioned drawbacks are removed and one point of soft 11 is m? In addition, we will provide a Torino 9 layered 4fiI fat drawer J-shaped plate that has a simple mold structure and can also be used for molding of intermediate, IL'7'r, and molded 1fj. It is something.

This promotion in accordance with point 1 above (I) 4 is for the lower molds that are sequentially transferred to each work station, and at each work station, 1. When the upper molds having different mold engraving spaces are brought into contact with each other, -U, while aligning with the mold engraving spaces of the lower mold, the molds are formed integrally with each of the upper molds and are different from each other. (By injecting 1J, 1 fat into the molding space of each upper and lower mold from each injection unit filled with 11 fat, the first work station
In the subsequent second working station, forming the forming layer,
Both the subordinate mold and the first work station) 1. The second moldings 1 to 4 were molded using a different molding space from the molding space, and in the same manner, multi-layer molding with mutually interwoven shapes could be easily achieved. It is something to do.

Next, 11 examples of the fruits of this invention will be explained based on the following figures in FIG. 3.

31'Oy, I and in FIG. 4, the rotary table 3
Several places along the circumference of the rice grain, in the example shown (・J2 pieces tyr,
Molding work stations 41% 42 are provided at each work station 4. ．． 42 and 52 are equipped with injection units 5 and 52, respectively, which are supported so as to be able to rise and fall freely.
Stay at 1.

The heating cylinder 61 at the −F end of the injection unit t・51, 52.
62, the lower mold γ11γ2 is removably attached. And, in the upper ring of injection unit 51% 52, there is a mold clamping cylinder 81.8 □ -) Illti Sano 1
Then, drive the injection units 5, 52 down.

On the other hand, the first several lower molds 9 are installed on the rotary table 3-.

Incidentally, at appropriate positions along the circumference of the rotary table 3, a molded product take-out station 10 and, if necessary, an independent article 41 (one-person station 11) are provided.

Hereinafter, we will take as an example the case of molding a molded product 2 from the two molding layers 2a and 2b that enter the molding layer 1.2, as shown in Figure 1.2. become pregnant.

As shown in 25 M and m 611, the heating cylinder 6 of the injection unit 5 at each work station 4 is provided with a 12 12 mm (= JJls material 12). , top) Y'7 is layered at will.

Each lower die 71% T2 has 11 different die engraving spaces 131 and 132, and the die engraving space 13 of the upper die 71 at the first work station 4 is formed. is molded product 2
The molding space 13□ of the upper mold T2 in the second molding space 142 is formed in a shape corresponding to the second molding layer 21). 14 cores are vertically installed in each of the fourteen cores.

On the other hand, regarding the upper mold 9, d1 each work station 41.4
2, a die-carving space 15 of the same shape is formed.

A slide block 17 is slidably attached to the lower mold 9 by a mochibetsuki 16, and the slide block 17 is attached to the molding layer 2a of the molded product 2. A corresponding die-carving space 18 is formed.The slide flock 17 has a tapered surface 17a formed thereon, which coincides with the tapered surface 1a formed in the upper part (91). do.

Furthermore, there are 19 lower blades, and 11 are ejector turbines provided in the slot 9.

In the above configuration, at each work station 4,
The injection unit and throat 5 are lowered by the narrow cylinder 8, and the officer Q! I 7 and lower mold 9 + close d mold, further 41)
The slide block 17 is held between the upper and lower molds γ and 9.

mi - (Also in E work station 41, the 5th
As shown in the figure, the slide block 1γdj is located at a position 1N from the die-cutting space 15 of the die 9, and at a position i? ′
Upper and lower type in 1? , 9 and slide block 1γ&i are clamped. In this state, IUi13 is in the process of engraving the upper mold T1.
□ and slide block 1T! jilt naori kusama 18
is in alignment position 11+, but β both J+1171 parking [Ml
131.18 and lower mold 9 mold + Ylin space 15.1-7
;l, there is no matching 17 in that position. In addition, the slide lock 1γ is attached to the taper tj) 17a of the upper mold γl by the taper t1i of the upper mold γl.
? Rather than matching +a, the position i[a is automatically fine-tuned to determine the position 1% to 1%. This state p, 1
20 boxes of molded products - molding layer 2a are molded in step 1.

Then, at the second work station 42, as shown in FIG. 4! '72' Riborima 1
The lower mold 9 and the injection unit 52 are positioned in advance so that the lower mold 9 and the mold engraving space 15 of the lower mold 9 are aligned. Therefore, the slide block 17 of the lower mold 9 transferred from the first work station 41 is
By sliding on the lower fiu+ 9, the hand mold 72.9 and the mold engraving spaces 13° and 18.15 of the slide block 11 are aligned. In this state, resin is injected, and the second molding layer 2b is laminated onto the first molding layer 2a-to, thereby completing the molded product 2.

Then, the formation 3b at each of the work stations 41 and 42 mentioned above.
Potato harvesting is done all at once.

In addition, in the above embodiment, there are 4 work stations and 2 work stations.
Although this is a specific point, it is not limited to this, and sand and misalignment corresponding to the laminated structure of the molded product 20 are common, and
under! (The rotary table 3 is used once a month as a transfer means for step 9, but is not limited to this, and it is of course possible to use a transfer means for a shuttle type shield.)

As described above, according to the present invention, several die-cutting spaces are formed that are directly inserted into the injection cornices provided at a plurality of work stations, respectively. , a structure in which a slide block in which the same die engraving space is formed is slidably held in the lower die which is sequentially transferred from work station to work station;
As a result, when the subordinate mold is clamped via the slide block at each work station, the clamping position of the upper mold relative to the lower mold is changed. The initial molding layer of the molded product is formed only by the engraving space of the upper die and slide block without using the mold, and then in the subsequent work station, the slide block is slid and aligned with the engraving space of the lower die. This is used to stack and mold the next layer one step at a time on the initial Dk-shaped layer. Die-cutting spaces of different shapes are formed, and a common die-cutting space is formed in the lower die and slide Glock at the master work station, so the
ltI1. ＋ShioζI 4 is not included, and the mold structure is simple.
(becomes, 1′ Φ; 1 French-Chinese cj tendency is -1, and,
IJly with complex) shaped Id(-′Y month)1y layer
It has the advantage of being able to mold shaped items into the old market.

Moreover, the upper mold corresponds to the work station and prompts) the mold of the temple! i1. Since it has a space, the upper mold is injected,
= rJ has a structure in which a number can be written directly on the (111) mold structure because the plate can be omitted. Together with the simplification of , it is possible to perform fortune-telling by making the entire +b-hiro a pure one.

- The above work is carried out all at once in synchronization, so there is no waste or wastage in the overall work at each work stage, and it is efficient. It also has the advantage of being able to perform a variety of tasks.

4 Brief description of the drawings, Figure 11, No. 1, is a diagram of the molded product according to the prior art, Figure 1711,
Figure 2 is a diagram of the molded product according to the present invention, No. 31.
Figures 1 and below show embodiments of the present invention; Figure 3 is a top view, Figure 41 is a top view, Figures 5 and 6 are operation explanatory diagrams. and η color, Figure 5 (A)
is diagonal technique, figure, 5th (nl (Iu) is NJi rfn 1
91, Figure 6 (A) id crush 1 congratulation 1 n 1,; 4% Figure 6 (B) is a rooster (f (1 figure).

2...Molded product 3...Rotating machine 4...Working station 5
... Injection coaster l-7... 10g
9...-) Type 13...Shi! Chisuno carving space 15... = 1 type carving space 1γ...
Slide block 18-...Slide block 11・Tsuku's die carving empty 1 special Wl
・Applicant Yamaguchi Seiki Co., Ltd. I/F1 Diagram 1
Figure 2] -ヱFigure 3 164- Figure 4

Claims (1)

[Claims] A plurality of injection units 5 disposed in a plurality of work stations 4, and a mold engraving space 13 that is attached to each of the plurality of injection units and that is different from each other are formed. upper mold 7,
111M was transferred to the previous 6th member's work station,
A lower mold 9 in which the same mold engraving space 15 is formed, and the same mold engraving space 18 is formed in the shape b
ν, and when clamping the mold, place the appropriate position i on the lower mold.
It is characterized by a slide block 11 held between the mold and the lower mold.
1t-r J-shaped machine.