JP2939308B2 - Combined processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention integrally includes a progressive processing section for sequentially feeding a material and processing an insert, and an injection molding section for integrally molding the insert into a resin. The present invention relates to a combined machining apparatus.

(Prior Art) As a molded product obtained by integrally molding an insert with a resin, for example, as shown in FIG. 9, a resin molded product obtained by extending a rectangular tubular boss portion 2 on one side surface of a box-shaped main body portion is used. In some parts, an L-shaped insert 4 is partially embedded in the portion 3, and both end portions of the insert 4 are arranged in a floating state in the main body 1 and the boss portion 2. Conventionally, in order to obtain such a molded product 5, the insert 4 is generally formed by a progressive die, and the inserts 4 are individually placed in an injection die to perform injection molding. However, according to such a processing method, the insert 4 from the progressive die to the die for injection molding.
Must be conveyed and stored one by one, resulting in a large loss of man-hours and time, and there is a problem that productivity cannot be improved as desired.

Therefore, recently, as shown in FIGS. 10 and 11, a progressive die 6 independently provided, an injection molding die 7 and a cutting die 8 are continuously arranged. After processing insert 4 from hoop-shaped insert material 9 with progressive die 6,
After the inserts 4 are connected by the feed sun 9a, the inserts 4 are successively carried into the injection molding die 7, and the inserts 4 are integrally molded (injection molded) into the resin molding portion 3 by the die 7, and then the molded product 5 is removed. While being connected by the feeder 9a, it is further transported to the cutting die 8,
Therefore, the sending sun 9a was cut and completed. According to such a processing method, the man-hour and time for transporting the insert 4 by the continuous processing can be saved, and the productivity is greatly improved.

(Problems to be Solved by the Invention) However, according to the method of obtaining the molded product 5 by the continuous processing, an extra cutting die 8 for cutting the feeding sun 9a from the molded product 5 is required, so that equipment is required. There has been a problem that an increase in cost and installation space cannot be avoided. Further, the feed pitch C of the insert material 9 (FIG. 11) is determined by the width B of the resin molded part 3, and therefore, the width B of the resin molded part 3 is smaller than the width A of the insert 4 as in the molded article 5. If it is extremely large, there is a problem that the material yield of the insert material 9 is deteriorated and the burden of material cost is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described conventional problems, and has as its object to achieve desired productivity without lowering the material yield as well as increasing the equipment cost and installation space. An object of the present invention is to provide a combined machining device that can be secured.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a fixed plate, a movable plate arranged so as to be able to approach and separate from the fixed plate, and a movable plate between the fixed and movable plates. An intermediate plate disposed in such a manner as to be interlocked with the movable plate, and sequentially feeding a material to the fixed plate and the movable plate to process an insert; and an injection mold for integrally molding the insert with a resin. A molding die is continuously assembled, a movable body is attached to the intermediate plate so as to be movable between the progressive die and the injection molding die, and the progressive die is mounted on the movable body. And a slide core for taking out the insert from the mold and storing the insert in the injection mold.

(Operation) In the composite machining apparatus configured as described above, the inserts machined by the progressive machining mold can be integrated into the injection molding mold one by one by moving the slide core. The cutting step after integral molding becomes unnecessary.
Further, since the progressive die and the injection molding die are integrated into one plate and integrally formed, an apparatus having a small structure as a whole can be provided. In addition, since the processing of the insert is performed independently of the injection molding, the feed pitch of the insert material can be determined according to the width of the insert without being influenced by the shape of the molded product, and an improvement in the material yield can be achieved.

(Example) Hereinafter, an example of the present invention is described based on an accompanying drawing. Since the molded product obtained by this embodiment is almost the same as that shown in FIG. 9, the same reference numerals as those shown in FIG. 9 to FIG. Shall be used.

1 to 7, reference numeral 11 denotes a fixed plate, 12 denotes a movable plate provided below the fixed plate 11, and 13 denotes an intermediate plate provided between the two plates. The plate 13 is slidably held by a guide post 14 bridged between the fixed plate 11 and a base (not shown). The movable plate 12 is arbitrarily moved up and down along a guide post 14 by a driving means (not shown). When the movable plate 12 is moved upward, the intermediate plate 13 is lifted by the movable plate 12, and as shown in FIG. Both are closed to the fixed plate 11 (mold closed)
Become like The intermediate plate 13 is detachably connected to the movable plate 12 by connecting means (not shown) in the mold closed state, so that the intermediate plate 13 can be moved downward integrally with the movable plate 12. The lower end of the intermediate plate 12 is regulated by a stopper (not shown) extending from the fixed plate 11. At this time, the connecting means is disengaged and the movable plate 12 is lowered independently.

The upper portion of the progressive die 15 and the upper portion of the injection molding die 16 are continuously arranged on the fixed plate 11, while the upper die portion of the progressive die 15 is arranged on the movable plate 12. A mold portion and a lower mold portion on the injection mold are arranged to face the upper portion, respectively. The progressive die 15 includes a bending die 17 (FIG. 1) for bending an hoop-shaped insert material 9 to obtain an L-shaped insert 4 and a punch for cutting a feed sun 9a from the insert 4 as an upper die portion. 18 as a lower part thereof in cooperation with the punch 18
A die 19 for cutting 9a is provided. (FIG. 4). The intermediate plate 13 is provided with a hole 20 into which the die 19 is inserted,
The die 19 is inserted into the hole 20 when closing the mold. Then, one of the inserts 4 is placed on the inserted die 19, and upon completion of the closing of the mold, the punch 18 acts on the insert material 9 and the feeding sun 9a is cut. In addition,
The fixed plate 11 has a stripper plate 21 supported by a spring 22, and the movable plate 12 has a scrap discharge hole 23.

On the other hand, as shown in FIG. 5, the injection molding die 16 is provided with a concave forming part 24 as an upper mold part and a convex forming part 25 as a lower mold part. The intermediate plate 13 is provided with a hole 26 into which the convex-shaped part 25 is inserted, and the convex-shaped part 25 is inserted into the hole 26 when the mold is closed. At the time of closing the mold, the concave forming portion 24 and the convex forming portion 25 are fitted together, and a slide core 30 for holding the insert 4, which will be described later, is incorporated therein, so that a closed cavity is formed. Become. FIG. 7 shows the closed state of the injection mold 16 and FIG. 5 shows the open state of the mold after the injection molding.
The molded article 5 embedded in the figure is shown. The movable plate 12 has a knockout pin for dispensing the molded product 5.
27 are provided.

Thus, the intermediate plate 13 is provided with a long hole 31 along the progressive die 15 and the injection die 16, and the long hole 31 has a moving body 32 that holds the slide core 30. Is arranged. The movable body 32 has guide members 33 on both sides thereof.
Slidably pressed on the intermediate plate 13.
A pair of brackets 34 project from the lower portion of the intermediate plate 13 with the slot 31 interposed therebetween, and a pair of rods 36 extending from a cylinder 35 are bridged between the pair of brackets 34 (second and third brackets). Figure). The cylinder 35 slides on a rod 36 when hydraulic oil is supplied and discharged therein, and the moving body 32 is connected to the cylinder 36 via a joint 37. That is,
The moving body 32 is arbitrarily moved along the guide member 33 by the operation of the cylinder 35, and is appropriately positioned at a solid line position and a broken line position shown in FIG. The movable plate 12 is provided with an escape hole 12a for allowing the cylinder 35 to escape when closing the mold.

As shown in FIG. 3, the slide core 30 is movable in a direction orthogonal to the moving direction of the moving body 32.
It comprises a main body 38 attached to 32 and an insertion section 39 provided integrally with the tip of the main body 38. The main body 38 is connected to a cylinder 40 fixed to the intermediate plate 13, and the cylinder 40 is operated to arbitrarily insert the insertion portion 39 of the slide core 30 into the progressive die 15 or the injection die 16. It is supposed to be. The insertion portion 39 is composed of a pair of grip plates 39a that can be opened and closed in the vertical direction.
Is closed by a cam mechanism (not shown) as the slide core 30 moves toward the progressive die 15 or the injection die 16.

The main body portion 38 of the slide core 30 is provided with a rectangular first hole 41 that penetrates obliquely in the vertical direction, and a square second hole 42 that intersects the first hole 41. On the other hand, the fixing plate 11 has first and second holes as shown in FIGS.
An angular cam 43 that can be inserted into each of 41 and 42 is provided. The angular cam 43 can be moved in the moving direction of the moving body 32 by a cylinder 44 built in the fixed plate 11, and this movement causes the first and second holes 41 and 42 to move.
Is selectively positioned with respect to any one of the above. Also, a third hole 45 is provided on the base side of the insertion portion 39 of the slide core 30, and a locking block 46 that can be inserted into the third hole 45 is provided on the fixed plate 11. The locking block 46 is inserted into the third hole 45 at the time of closing the mold, and serves to position the slide core 30. In addition, the insert 4 having the feed sun 9a cut is provided on the intermediate plate 13 side of the progressive die 15 side.
A presser foot 47 for fixing the presser foot is provided.
47 is driven by a cylinder 48 (FIGS. 1, 4).

Hereinafter, the operation of the combined machining apparatus configured as described above will be described.

When the movable plate 11 is moved upward to lift the intermediate plate 13 and both are closed with respect to the fixed plate 11, the progressively inserted insert 4 is placed on the die 19 of the progressive die 15 and the die is moved. When the closing is completed, the punch 18 acts on the insert material 9, and the feeding sun 9a is cut. Simultaneously with the cutting, the presser foot 47 advances by the operation of the cylinder 48, and presses the cut insert 4 against the edge of the intermediate plate 13. Thereafter, the mold is opened as shown in FIG. 4 by the downward movement of the movable plate 12, but at this time, the slide core 30 has been moved in advance to the progressive die 15 by the movement of the movable body 32 ( (The position shown by the broken line in FIG. 1), the slide core 30 is moved by the operation of the cylinder 40 simultaneously with the mold opening.
Move forward in. Then, as the slide core 30 advances, the pair of gripping plates 39a of the insertion portion 39 gradually close, and at the forward end, the gripping plate 39a is finally completely closed, and the divided insert 4 is gripped here. .

Next, the slide core 30 is moved back to the injection mold 16 by the operation of the cylinder 35. With the return of the slide core 30, the movable plate 11 is moved upward to move the intermediate plate
Lift 13 and close both against fixed plate 11. At this time, the angular cam 43 provided on the fixed plate 11
The first hole 41 in the slide core 30 is operated by the operation of the cylinder 44.
Are inserted into the first holes 41 when the plates are closed. At the same time, the locking block 46 provided on the fixing plate 11 is inserted into the third hole 45 of the slide core 30 (FIG. 7). At this time, since the first hole 41 into which the angular cam 43 is inserted is a rectangular long hole, the slide core 30 slightly advances with the insertion of the locking block 46, whereby the insertion portion 39 of the slide core 30 holds the slide core 30. The inserted insert 4 is placed in a proper position of the injection mold 16 (FIG. 1).

Thereafter, the resin is injected into the closed mold 16 for injection molding, whereby a molded product 5 in which the insert 4 is integrally molded with the resin molded portion 3 is obtained. After this injection molding is completed,
The operation of the cylinder 44 moves the angular cam 43 to a position corresponding to the second hole 42 of the slide core 30. In this state, when the movable plate 12 is moved down, the intermediate plate 13 is also moved down at the same time, and the angular cam 43 relatively tends to fall out of the second hole 42. Since the second hole 42 is formed to have a size that fits just into the angular cam 43,
Slide core following the removal operation of angular cam 43
30 is retracted, and as a result, the insertion portion 39 at the tip of the
When the mold is opened, the molded product 5 is held by the convex forming portion 25 of the movable plate 12 as shown in FIG. Thereafter, the knockout pin 27 is moved upward by the operation of the driving means (not shown), and the molded article 5 is discharged from the molding section 25. Here, the next insert 4 is processed by the progressive die 15 in synchronization with the injection molding cycle, and at the same time as the completion of the injection molding, the slide core 30 is again moved to the progressive die 15 side. And the above operation is repeated.

In the above-described embodiment, a mechanism using the cylinders 35 and 40 as a drive source is used as a means for moving the slide core 30, but this mechanism is optional, and for example, as shown in FIG. The mechanism of the ball screw 52 to be used can be used. In the above-described embodiment, the progressive die 15 having one series has been described. However, as shown in FIG.
5 ', 15 ". In this case, the slide core 30 is provided with an insert portion for a plurality of inserts 4', 4" so that a plurality of inserts can be simultaneously inserted into the injection molding die 16. I can put it.

(Effects of the Invention) As described above in detail, according to the combined machining apparatus according to the present invention, a cutting step after integral molding is not required, so that a reduction in equipment costs can be achieved through reduction in dies. There is an effect that can be done. In addition, since the progressive die and the injection molding die are integrated into one plate and integrated, there is an effect that the overall size can be reduced. Moreover, since the feed pitch of the insert material can be determined according to the width of the insert without depending on the shape of the molded product, there is an effect that the material yield can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a combined machining apparatus according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a perspective view showing an assembly structure of a slide core, FIG. 4 is IV- of FIG.
FIG. 5 is a sectional view taken along the line VV of FIG. 1, FIG. 6 is a sectional view showing the relationship between the fixed plate and the intermediate plate, and FIG. FIG. 8 is a cross-sectional view showing a mold closed state, FIG. 8 is a schematic view showing another embodiment of the present apparatus,
FIG. 9 is a perspective view showing the shape of a molded article to which the present invention is applied, FIG. 10 is a schematic view showing a process for processing a conventional molded article,
FIG. 11 is a schematic view showing a processing step of a conventional molded product. 3 ... resin molding part, 4 ... insert 9 ... insert material, 11 ... fixed plate 12 ... movable plate, 13 ... intermediate plate 15 ... progressive mold, 16 ... injection molding metal Mold 30: Slide core, 32: Moving body

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiko Miyake 2695-438 Kanonji Temple, Oimachi, Ena-shi, Gifu Central Fine Tool Co., Ltd. (56) References JP-A-60-224514 (JP, A) JP-A Heihei 3-47720 (JP, A) JP-A-61-246027 (JP, A) JP-A-61-171318 (JP, A) JP-A-60-240421 (JP, A) JP-A-60-109813 (JP, A) A) Japanese Utility Model 63-47116 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B29C 45/00-45/84

Claims (1)

(57) [Claims] 1. A fixed plate, a movable plate disposed so as to be able to approach and separate from the fixed plate, and an intermediate plate disposed between the fixed and movable plates so as to be interlocked with the movable plate. Equipped, successively incorporates a sequential processing die for sequentially feeding a material to the fixed plate and the movable plate and processing an insert, and an injection molding die for integrally molding the insert into a resin, to the intermediate plate. A moving body is mounted so as to be movable between the progressive die and the injection mold, and the insert is taken out of the progressive die to the movable body, and the insert is removed by the injection molding die. A composite machining device characterized by holding a slide core to be placed in a mold.