JP2000117824A - Method and device for manufacture of simultaneously filled molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a simultaneously filled molding, in which positional shift of the filled molding does not occur at the delivery of a filled molding under the state being hung down with a clamping fitting, and a device therefore. SOLUTION: In a mold 1 consisting of a mold main body 3, a pressure sealing mold 4 placed on the mold main body 3, and parison sucking plates 5 placed on the pressure sealing mold 4, a hollow molding is molded in the mold main body 3 and the upper part of a parison 7 is set into an open state with the parison sucking plates 5. After that, by lowering a filling nozzle, a liquid is filled in the hollow molding so as to form a charged molding 10 by closing the pressure sealing mold 4. Then, the parison sucking plates 5 are opened and a clamping fitting 9 and its opened state is transferred between the plates 5 to the neighborhood of the top surface of the pressure sealing mold 4 in order to cool the clamping fitting 9 with a cooling device, resulting in cooling an upper burr 15 by clamping it with the clamping fitting 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing a simultaneously filled molded article.

[0002]

2. Description of the Related Art The applicant of the present invention has previously filed Japanese Patent Application No.
No. 6 proposes a molding die for a simultaneous filling molded product having a configuration as shown in FIG.

In FIG. 1, reference numeral 21 denotes a mold having a split structure. The molding die 21 includes a die main body 23 attached to a pair of mold mounting plates 22 that open and close, a press-bonding seal die 24 mounted on the upper part so as to be openable and closable, and a mounting part on the upper part. And a parison suction plate 25 whose end is mounted on the upper part of the mold mounting plate 22.

A cavity 6 is formed on the mating surface of the two mold bodies 23, and a suction jacket and a cooling jacket (not shown) for surrounding the cavity surface 6a for vacuum suction of the parison 7 in the cavity 6 are provided. Is formed.
The upper part of the mold body (the upper part of the cavity) is provided with a throttle part 8 for facilitating vacuum suction of the parison 7.

Next, the operation will be described.

FIG. 5 shows that a cylindrical parison 7 is attached to the mold body 2.
3 shows a state in which the upper part is cut, the upper part is cut off, the parison is sucked by the parison suction plate 25, and the parison 7 is sucked into the cavity surface 6a. The neck portion 13 is formed by the narrowed portion 8. In this state, a filling nozzle (not shown) is inserted from above the parison 7 to fill the hollow molded product 30 with the liquid. At that time, parison 7
Is sucked by the parison suction plate 25, so that it does not hinder the insertion of the filling nozzle into the parison 7. Next, the pressure seal mold 24 is closed and the head 14 is formed. Thus, a filled molded article is formed. An upper burr 35 is formed above the pressure seal mold 24,
A lower burr 16 is formed below the cavity 6. Next, in order to remove the filled molded product from the molding die 21, the suction of the parison suction plate 25 is stopped, and the upper burr 35 is removed.
After the upper burr end 35a located above the parison suction plate 25 is clamped by a clamp (not shown),
The mold body 23 and the pressure seal mold 24 are opened. next,
The filled molded product is delivered from the molding die 21 to a deburring device (not shown) in a state of being suspended by a clamp.

[0007]

The filled molded article is cooled by the above-mentioned molding die, but the portion A of the upper burr shown in FIG. 5 which is in contact with the parison suction plate is sufficiently evacuated and sucked. There was a problem that it was not cooled and solidified.

If the part A is insufficiently cooled and solidified, the part A may be hung up when the filled molded article is suspended by the clamp.
The filling molded product is stretched by its own weight and the tensile force at the time of opening the molding die, and the vertical position of the filled molded product changes. That is, the filled molded article is not located at the same position for each molding. Therefore, when the filled molded product is transferred to the molded product holder of the deburring device, a positional shift occurs and the positioning cannot be performed.
When a burr is pressed by a punching blade, there is a problem that a deburr cannot be performed or a defective product occurs due to damage to a filled molded product. Also, if the upper burr does not adhere to the punching blade due to insufficient cooling and does not drop, especially if the upper burr enters between the punching blade and the molded product holder, the punching blade will not move and the machine will stop, and automatic operation will not be possible. There was a problem.

The present invention relates to a method for manufacturing a simultaneously filled molded article in which no displacement occurs in the filled molded article when the molded molded article is hung by a clamp and transferred from a molding die to a deburring device. And to provide the device.

[0010]

The present invention has solved the above-mentioned problems as follows. That is, in a molding die composed of a mold body, a pressure-bonding seal mold placed on the upper part thereof, and a parison suction plate placed on the upper part, a hollow molded product is molded with the mold body. With the parison suction plate open with the upper part of the parison, the filling nozzle is lowered to fill the liquid into the hollow molded product, the pressure seal mold is closed to form a filled molded product, and the parison suction plate is opened. In the meantime, the clamp is moved to the vicinity of the upper surface of the pressure seal mold with the clamp being opened, the clamp is cooled by a cooling device, the upper burr is clamped by the clamp, and the upper burr is cooled.

As described above, since substantially the entire surface of the upper burr is clamped and cooled by the clamp, the displacement of the filled molded article due to the extension of the upper burr does not occur.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.

FIG. 1 is a diagram showing the construction of a simultaneous filling molded product manufacturing apparatus according to the present invention, wherein (a) shows a state in which the filled molded product is molded by a molding die, and (b) shows an upper part of the filled molded product. This shows a state where burrs are clamped by a clamp.

In FIG. 1A, reference numeral 1 denotes a mold having a split structure. This molding die 1
A mold body 3 attached to each of a pair of mold mounting plates 2 that open and close, a pressure-bonding seal mold 4 mounted on the upper part so as to be able to open and close, and a parison suction provided on the upper part so as to be able to open and close. And a plate 5. The pressure-bonding seal mold 4 and the parison suction plate 5 move together with the mold main body 3 and can be opened and closed independently by air cylinders and the like provided respectively. The lower surface of the parison suction plate 5 is set to be slightly higher than the upper surface of the mold mounting plate 2.

A cavity 6 is provided on the mating surface of the two mold bodies 3.
Are formed, and a suction jacket and a cooling jacket (not shown) for vacuum-suctioning the parison 7 in the cavity 6 surrounding the cavity surface 6a are formed. In the upper part of the mold body (upper part of the cavity), a throttle part 8 is provided to facilitate vacuum suction of the parison 7.

At the filling position, a clamp 9 having a cooling mechanism such as water cooling is disposed above the pressure seal mold 4. The clamp 9 can be opened and closed and transported by, for example, an air cylinder.

As shown in FIG. 1, in a state in which the molded product 10 is molded by the molding die 1, the die main body 3, the pressure seal die 4, the parison suction plate 5 are closed, and the clamp 9 is raised. is open.

As shown in FIG. 1 (b), the body 11 and the bottom 12 of the molded product 10 are formed in the cavity 6 of the mold body 3, the neck 13 is formed in the narrowed portion 8, and the pressure seal mold is formed. At 4, the head 14 is formed. In addition, the crimping seal mold 4
An upper burr 15 is formed above the lower surface of the cavity 6, and a lower burr 16 is formed below the cavity 6.

As shown in FIG. 1, when the upper burr 15 of the filled molded product 10 is clamped by the clamp 9, the mold body 3 and the pressure seal mold 4 are closed, and the parison suction plate 5 is closed.
Is opened so that it can be transported to the vicinity of the upper surface of the pressure-bonding seal mold 4 with the clamp 9 opened.

Next, the operation of the above-described manufacturing apparatus will be described.

FIG. 2 and FIG. 3 are views showing a molding / filling step of a simultaneously filled molded article according to the present invention. FIG. 2 (a)
(D) and (e) to (g) of FIG. (A) A cylindrical parison 7 is extruded from the crosshead 18 by a predetermined length, the mold main body 3 and the pressure-bonding seal mold 4 are opened, and the molding die 1 in a state where the parison suction plate 5 is closed. It moves to a position below the crosshead 18. (B) The mold body 3 is closed, the parison 7 is sandwiched, and at the same time, the upper part of the parison 7 is cut by the parison cutter 19.
At this time, the pressure seal mold 4 and the parison suction plate 5 also move together with the mold body 3. (C) While the molding die 1 is being moved to the filling position or at the filling position, the upper part of the parison 7 is vacuum-sucked into the parison suction plate 5 and air interposed between the cavity surface 6a and the parison surface is sucked. 7 is a hollow molded product 30 having a predetermined shape.

In the filling position, the clamp 9 is located above the parison suction plate 5 in the open state,
0 is rising. (D) The filling nozzle 20 is lowered to fill the hollow molded product 30 with the liquid. (E) The filling nozzle 20 is raised, and the pressure seal mold 4 is closed to form the head 14 of the filling molded product 10. (F) Open the parison suction plate 5 and transfer it to the vicinity of the upper surface of the pressure-bonding seal mold 4 with the clamp fitting 9 open. (G) The clamp 9 is closed, and the upper burr 15 of the filled molded product 10 is clamped. (H) The mold body 3 and the pressure seal mold 4 are opened, the parison suction plate 5 is closed, and the filled molded product 10 is taken out while being held by the clamp 9. Next, returning to the above (a), the next molding is performed in the same manner.

FIGS. 4A and 4B are external views of a filled molded product molded in the molding / filling step, wherein FIG. 4A is a front view and FIG. 4B is a side view.

As shown in the figure, the body 6 and the bottom 12 of the molded article 10 are formed in the cavity 6 of the mold body 3, and the neck 13 is formed in the narrowed portion 8. In addition, the head 14 is formed by the pressure seal mold 4. In addition, filling molding 1
A lower burr 16 is formed at a lower part of the upper part 0, an upper burr 15 is formed at an upper part, and a side burr 17 is formed at both sides. A hatched portion B which is a portion of the upper burr 15 in contact with the parison suction plate 5
Is cooled by being pressed by the clamp 9 so that
When the filled molded product 10 is transferred to the deburring device by the clamp 9, no displacement of the filled molded product 10 occurs.

[0025]

Since the present invention is configured as described above, the following effects can be obtained. That is, when the filled molded product is delivered, no displacement of the filled molded product occurs, so that the automatic operation can be performed without burring mistakes, the operation rate can be improved, and labor costs can be reduced due to unnecessary monitoring. Further, since no damage is generated in the filled molded product, the defective rate can be reduced. In addition, due to the improved cooling of the burr, there is no adhesion to a punching blade or the like, and the burr separation and recovery rate is improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a simultaneous filling molded product manufacturing apparatus according to the present invention, in which (a) shows a state where the filled molded product is molded by a molding die, and (b) clamps an upper burr of the filled molded product. It shows a state where it is clamped by metal fittings.

FIG. 2 is a view showing a molding / filling step of a simultaneously filled molded article according to the present invention, wherein (a) to (d) show the respective steps.

FIG. 3 is a view showing a molding / filling step of a simultaneously filled molded article according to the present invention, wherein (e) to (h) show the respective steps.

FIG. 4 is an external view of a filled molded product, (a) is a front view,
(B) is a side view.

FIG. 5 is a configuration diagram of a molding die of a conventional simultaneous filling molded product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1,21 Molding die 2,22 Mold mounting plate 3,23 Die main body 4,24 Crimping seal die 5,25 Parison suction plate 6 Cavity 6a Cavity surface 7 Parison 8 Restriction part 9 Clamp fitting 10 Filled molded product 15, 35 Upper burr

Claims (5)

[Claims] 1. A molding die comprising a die body (3), a pressure-bonding seal die (4) mounted thereon, and a parison suction plate (5) mounted thereon. This is a method for producing a filled molded article (10) according to (1), wherein a hollow molded article (30) is molded with a mold body (3), and the upper part of the parison (7) is opened with a parison suction plate (5). State
The hollow molding product (30) is filled with liquid by descending the filling nozzle (20), the pressure-sealing mold (4) is closed to form a filling molding product (10), and the parison suction plate (5) is opened. In the meantime, while the clamp (9) is open, the clamp is transferred to the vicinity of the upper surface of the crimping seal mold (4), and the clamp (9) is moved.
And closing the upper burr (15) to clamp the upper burr (15). 2. A cooling device provided on the clamp (9) cools the clamp (9), clamps the upper burr (15) with the clamp (9), and removes the upper burr (15). The method for producing a co-filled article according to claim 1, wherein the article is cooled. 3. A molding die (1) and a clamp (9) for clamping upper burrs (15) of a filled molded product (10), wherein the molding die (1) is opposed to a mold mounting plate. A mold body (3) attached to each of (2) and a pressure-sealing mold (4) mounted on the upper part thereof so as to be openable and closable.
And a parison suction plate (5) provided on the upper part thereof so as to be openable and closable, wherein the parison suction plate (5) is provided.
Is a device for manufacturing a simultaneous filling molded product, wherein the clamp fitting (9) is opened to a position where it can be transported to a position near the upper surface of the pressure seal mold (4) in an open state. 4. The pressure seal mold (4) and the parison suction plate (5) can be opened and closed by a drive source independently of the mold body (3). 3
An apparatus for manufacturing a simultaneous-filled molded product as described above. 5. The simultaneous clamp according to claim 3, wherein the clamp (9) is opened and closed by its own drive source and transferred independently of the molding die (1). Equipment for manufacturing filled molded products.